f71c1405a2", @multicast, @val={@void, {0x8100, 0x1, 0x0, 0x2}}, {@mpls_mc={0x8848, {[{0xf, 0x0, 0x1}, {0xc, 0x0, 0x1}, {0x2, 0x0, 0x1}, {0x1c}], @llc={@snap={0x0, 0x0, "67a3", "c85dcd", 0x88ca, "e303e8e52af9a170943b5f0b2861a3effb852560b1007d1865564aed84dfbf75279a5a950a513b7559f042b12f0d592b5a8bb399b9a071f4d2b9fb4903fb61b866bd20c43a437cc6915d6e19f058e23b4cfbf7d66b0d974aa6f1687cc06941e28e8515a079742b9f8383f09b8e29493cdfef26beab29802d1e85d1a50ef5670a049551dab256fd3dc3fd667fd4a29c752e4f3ba700720a9fe2ecb47e232cfbb80832213bbaf3"}}}}}}, &(0x7f0000000600)={0x1, 0x4, [0x58f, 0x8001, 0x2bc, 0xf]}) syz_emit_vhci(&(0x7f0000000640)=@HCI_ACLDATA_PKT={0x2, {0xc9, 0x1, 0x0, 0xa2}, @l2cap_cid_signaling={{0x9e}, [@l2cap_info_req={{0xa, 0x4, 0x2}, {0x5}}, @l2cap_move_chan_rsp={{0xf, 0x7, 0x4}, {0x1, 0x1ff}}, @l2cap_info_rsp={{0xb, 0x8, 0x64}, {0x1, 0x9, "7d0c09e4aa3ea5a78a46cf8d66857ba4107e5cf880621c4c433cdb0a8bd03a4f9c8f390145f9db0c1dd85656d6b3dc38afb84d7e118e1cbdd6926b1876be6a6553bafa1bfef971281350403e18e82e89f42bb6d51b166bd96dabf25dbb28f01e"}}, @l2cap_disconn_req={{0x6, 0x64, 0x4}, {0x9, 0x1}}, @l2cap_move_chan_cfm={{0x10, 0x2, 0x4}, {0xffff, 0x9}}, @l2cap_create_chan_rsp={{0xd, 0x4f, 0x8}, {0x6, 0x8001, 0x8, 0x3}}, @l2cap_conn_rsp={{0x3, 0x48, 0x8}, {0x4, 0x8, 0x6837, 0x4}}]}}, 0xa7) syz_extract_tcp_res(&(0x7f0000000700), 0x0, 0x507) r6 = openat$cuse(0xffffffffffffff9c, &(0x7f0000000740), 0x2, 0x0) ioctl$DRM_IOCTL_GET_CLIENT(0xffffffffffffffff, 0xc0286405, &(0x7f0000002a80)={0x7, 0x4, {r5}, {0x0}, 0x100000000, 0x3}) shmctl$auto_IPC_STAT(0x8, 0x2, &(0x7f0000002b80)={{0x1, 0x0, 0xee00, 0x5, 0x9, 0x8c, 0x6}, 0xe0000, 0x3, 0x6, 0x2c54, @raw=0x7fffffff, @raw=0x5, 0x3, 0x0, &(0x7f0000002ac0)="34d14592330d2effe2b242ce1c79f97a737dc0f7745d84eec469048ba4772d3ca2f34e3a83b5edadf6550e5b412cf5ee749b3324b30032ad2ae14cfa29ef4ecf97416fdc53d73bb80ea139aac1bf364ddcbe7409342155ae126f63d9e3ab1d5104befdd9", &(0x7f0000002b40)="e550413c2f469c9ef08eb7193b0a242e58befe012aa89d7c"}) r9 = setfsuid$auto(0xee01) r10 = getuid() fstat(r3, &(0x7f0000002ec0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) ioctl$DRM_IOCTL_GET_CLIENT(0xffffffffffffffff, 0xc0286405, &(0x7f0000002f40)={0x9, 0x6, {0xffffffffffffffff}, {0xee01}, 0x9, 0x8}) ioctl$auto_XFS_IOC_SWAPEXT(0xffffffffffffffff, 0xc0c0586d, &(0x7f0000002f80)={0x1, @inferred=r3, @inferred=r3, 0x0, 0x0, '\x00', {0x100, 0x6, 0x4, 0x0, 0xee01, 0x4, 0x2, 0xe78bc90, {0x9e350, 0x10}, {0x4, 0x7}, {0x3a83, 0x80000000}, 0xff, 0x8, 0x7, 0x7, 0x5, 0xd275, 0x6, 0x1, 0xff74, 0x5, '\x00', 0xf0e, 0x400, 0x2, 0x8001}}) msgctl$auto_IPC_RMID(0x2, 0x0, &(0x7f00000030c0)={{0x80, 0x0, 0xee01, 0x8, 0x3, 0x3, 0x6}, &(0x7f0000003040)=0xf, &(0x7f0000003080)=0x29, 0xfffffffffffff801, 0x6b4c, 0x0, 0x3, 0x800, 0x2, 0xbf09, 0x3, @inferred=r2, @inferred=r4}) ioctl$auto_KVM_GET_DEVICE_ATTR(0xffffffffffffffff, 0x4018aee2, &(0x7f0000003140)={0xb407, 0xee01, 0x8, 0x8}) statx$auto(0xffffffffffffff9c, &(0x7f0000003180)='./file0\x00', 0x4, 0x2, &(0x7f00000031c0)={0x8, 0xfffffffe, 0x0, 0xa, 0x0, 0xee00, 0xf, 0x5d3e, 0x5, 0x10, 0xff89, 0x100, {0xf, 0x8}, {0xfff, 0x2}, {0x3, 0x7fff}, {0xffffffffffffffff, 0x9}, 0x0, 0x3, 0x7, 0x8d6, 0x383d, 0x4, 0xb0d4, 0x503, 0x2, 0x0, 0x5, 0x2, [0xfffffffffffffffb, 0xff, 0x3, 0x259, 0xbe9, 0xff, 0x6, 0x800, 0x9]}) shmctl$auto_IPC_SET(0x3, 0x1, &(0x7f0000004300)={{0x5, 0xee00, 0xee00, 0x3, 0x7ff, 0x2, 0x5}, 0x2, 0x401, 0x3, 0xfffffffffffffffe, @inferred=r1, @inferred=r4, 0xfffe, 0x0, &(0x7f00000032c0)="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", &(0x7f00000042c0)="14dc2c36c1a4730f33f0a47756b437792e9ac78f742f821e328341e02b"}) newfstatat(0xffffffffffffff9c, &(0x7f0000004600)='./file0\x00', &(0x7f0000004640)={0x0, 0x0, 0x0, 0x0, 0x0}, 0x0) fstat(r3, &(0x7f00000046c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) shmctl$auto(0x0, 0x7, &(0x7f00000058c0)={{0xffffffff, 0xee00, 0xffffffffffffffff, 0x2, 0x9, 0x2, 0x4}, 0x6, 0x4, 0x4, 0x1, @raw, @inferred=r4, 0x40, 0x0, &(0x7f0000004840)="be999eee258959e93a2aa68dc2cb1d93b819d2b9d9e678e2e2506d54510e920728d75815bb8027e6a021febb8f0996f8add6877b74ce5eace74504cf3a4f3ac46a5a59400342351940bfb8767dd9955c9e9a9941", &(0x7f00000048c0)="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lstat$auto(&(0x7f0000005940)='./file0\x00', &(0x7f0000005980)={0x100000000, 0x7d80, 0x1, 0x40, 0xffffffffffffffff, 0x0, 0x0, 0x7, 0xfffffffffffffffb, 0x0, 0x2, 0xe6, 0x2, 0x4, 0xa03f, 0x10, 0x7}) syz_fuse_handle_req(r6, 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", 0x2000, &(0x7f0000005b80)={&(0x7f0000002780)={0x50, 0xffffffffffffffda, 0x7, {0x7, 0x2d, 0x8, 0x1020000, 0xfffc, 0x401, 0x12, 0x6, 0x0, 0x0, 0x40, 0xce}}, &(0x7f0000002800)={0x18, 0x0, 0x6, {0xbb}}, &(0x7f0000002840)={0x18, 0x0, 0x1, {0x5}}, &(0x7f0000002880)={0x18, 0xfffffffffffffff5, 0x4}, &(0x7f00000028c0)={0x18, 0xfffffffffffffffe, 0x3, {0x7}}, &(0x7f0000002900)={0x28, 0x0, 0x300000000000, {{0x1, 0x8, 0x0, r1}}}, &(0x7f0000002940)={0x60, 0x0, 0xc, {{0x0, 0xff, 0x2, 0x41, 0x40, 0x6, 0x8dd, 0x5}}}, &(0x7f00000029c0)={0x18, 0xffffffffffffffda, 0x9, {0x5}}, &(0x7f0000002a00)={0x16, 0x0, 0x6, {'\xff\xff\xff\xff\xff\xff'}}, &(0x7f0000002a40)={0x20, 0x0, 0x0, {0x0, 0x1e}}, &(0x7f0000002c00)={0x78, 0xfffffffffffffffe, 0x3, {0x8, 0x6, 0x0, {0x0, 0x8, 0x2, 0x8, 0x80, 0x5, 0x3482, 0xa246, 0x80000000, 0x4000, 0x3e08, r7, r8, 0x7f, 0x3}}}, &(0x7f0000002c80)={0x90, 0xffffffffffffffda, 0x2, {0x6, 0x0, 0x2, 0x8, 0xfffffffc, 0x9, {0x1, 0x3, 0x2, 0x5, 0x761, 0x7, 0x58d95c3d, 0x7, 0x7, 0x8000, 0x8, r9, 0xee01, 0x0, 0x400}}}, &(0x7f0000002d40)={0x158, 0x0, 0x8000000000000001, [{0x0, 0x0, 0x0, 0x5}, {0x2, 0x291, 0x3, 0x0, 'a-$'}, {0x6, 0x1, 0x1a, 0x5df9, 'bpf_lsm_inode_getsecurity\x00'}, {0x5, 0x4}, {0x3, 0x2, 0x7, 0x615d, ']F,[@%('}, {0x3, 0x4, 0x2, 0x5, '#*'}, {0x6, 0xc, 0x1, 0x200, '!'}, {0x2, 0x1, 0x3, 0xffff, '%[*'}, {0x2, 0x1, 0x6, 0x10001, '\xbb\xbb\xbb\xbb\xbb\xbb'}, {0x2, 0x9, 0x3, 0x3, '\\$&'}]}, &(0x7f0000004380)={0x280, 0x0, 0x7, [{{0x1, 0x2, 0x9b, 0xa, 0x40, 0x2b, {0x1, 0x0, 0xf5, 0x7, 0x8, 0x7, 0x5, 0x9, 0x1b, 0xa000, 0x4, r10, r12, 0x4, 0x10000}}, {0x4, 0x6, 0x0, 0x7f}}, {{0x1, 0x0, 0x9, 0x4, 0x9, 0x101, {0x0, 0x80, 0x80000001, 0x8, 0x7fffffffffffffff, 0xc14, 0x7, 0x2, 0x5, 0x1000, 0x7, r13, r16, 0x7, 0x3}}, {0x1, 0x8000000000000000, 0x0, 0x9}}, {{0x3, 0x1, 0x7, 0x3, 0x10000, 0xfff, {0x6, 0x3, 0x4, 0xffffffff, 0x5, 0x1, 0xcf, 0x5, 0x2, 0x3000, 0xf, r17, r18, 0xdda, 0x800}}, {0x0, 0x480, 0x1, 0x7, '\''}}, {{0x3, 0x0, 0x6, 0x6, 0xae90, 0x7fff, {0x5, 0x2, 0xffff, 0xb6, 0x9, 0x8, 0x200, 0x3, 0x6, 0x6000, 0xfffffff7, r19, r20, 0x4, 0x6}}, {0x0, 0x3, 0x6, 0xfffffffd, 'wlan0\x00'}}]}, &(0x7f0000004740)={0xa0, 0xfffffffffffffffe, 0x7fff, {{0x1, 0x2, 0x8, 0x8001, 0x9000, 0x0, {0x3, 0x4, 0x4283, 0x6, 0x7, 0x1, 0x4, 0x8000, 0x7f, 0x2000, 0xa, r22, r24, 0x2, 0x9}}}}, &(0x7f0000004800)={0x20, 0x0, 0xa, {0x8}}, &(0x7f0000005a40)={0x130, 0x0, 0x800, {0x10000000, 0x9, 0x0, '\x00', {0x4, 0xfffffff9, 0x8, 0xd, r25, r27, 0x4000, '\x00', 0xe, 0x1, 0x9, 0x4, {0x75, 0x10}, {0x0, 0x2a}, {0x4, 0x647}, {0x8, 0xfffffffa}, 0x4, 0x9, 0xf1, 0x7}}}}) r28 = socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$SEG6(&(0x7f0000005c40), r28) syz_init_net_socket$802154_dgram(0x24, 0x2, 0x0) r29 = syz_io_uring_complete(0x0) syz_io_uring_setup(0x19f7, &(0x7f0000005c80)={0x0, 0x9c5d, 0x2, 0x1, 0x253, 0x0, r15}, &(0x7f0000005d00)=0x0, &(0x7f0000005d40)=0x0) syz_io_uring_submit(r30, r31, &(0x7f0000005dc0)=@IORING_OP_TIMEOUT={0xb, 0x28, 0x0, 0x0, 0x3, &(0x7f0000005d80), 0x1, 0x10, 0x1}) r32 = syz_kvm_setup_syzos_vm$x86(r15, &(0x7f0000bff000/0x400000)=nil) syz_kvm_add_vcpu$x86(r32, &(0x7f0000005e80)={0x0, &(0x7f0000005e00)=[@enable_nested={0x12c, 0x18}, @uexit={0x0, 0x18, 0x4}, @nested_create_vm={0x12d, 0x18, 0x2}], 0x48}) syz_kvm_setup_cpu$ppc64(r14, r29, &(0x7f0000c37000/0x18000)=nil, &(0x7f0000006100)=[{0x0, &(0x7f0000005ec0)="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", 0x230}], 0x1, 0x1, &(0x7f0000006140)=[@featur2={0x1, 0x7}], 0x1) syz_kvm_setup_syzos_vm$x86(r29, &(0x7f0000c00000/0x400000)=nil) syz_memcpy_off$IO_URING_METADATA_FLAGS(r30, 0x114, &(0x7f0000006180), 0x0, 0x4) r33 = socketcall$auto_SYS_SOCKET(0x1, &(0x7f0000006240)=0x5) shmctl$auto_SHM_INFO(0x80000000, 0xe, &(0x7f0000006340)={{0xfffffffa, r11, r27, 0x3, 0xffff, 0xe6b, 0x7}, 0x0, 0x357b, 0x3, 0x8000000000000000, @raw=0x74, @inferred=r21, 0xc0b, 0x0, &(0x7f0000006280)="7010159f68d5ae907137fa70d286a18ba48348f88d1fa097cfe82bb9559e66c97b4ccf3acd9ce240544907f4538170e45e0c6de8adfb6ae94ed44b616a63737814f1894473d9519f2130e8a0e061c96e46a99a5316e46b6b461348bb03dddad70675bcda5921bdb5038cc7dcade7ba3e106cf315e2ad48818a62c7", &(0x7f0000006300)="1368248ad908eb425081239c0a10a514ef06f16fa38bc52b0f03b04d36f544263cb4a0a3ffbbafa80089cf8b02841df433c6b97da8fbfe285fccd05ad4"}) syz_mount_image$fuse(&(0x7f00000061c0), &(0x7f0000006200)='./file0\x00', 0x400, &(0x7f00000063c0)={{'fd', 0x3d, r33}, 0x2c, {'rootmode', 0x3d, 0x1000}, 0x2c, {'user_id', 0x3d, r23}, 0x2c, {'group_id', 0x3d, r34}, 0x2c, {[{@blksize={'blksize', 0x3d, 0x600}}, {}, {@blksize={'blksize', 0x3d, 0x1e00}}, {@max_read={'max_read', 0x3d, 0x100000001}}, {@default_permissions}, {@default_permissions}], [{@euid_lt={'euid<', r13}}, {@subj_user={'subj_user', 0x3d, ','}}, {@uid_lt={'uid<', r26}}, {@audit}, {@dont_measure}]}}, 0x0, 0x0, &(0x7f0000006540)="d3aa92") syz_open_dev$I2C(&(0x7f0000006580), 0x800, 0x40000) syz_open_procfs(r5, &(0x7f00000065c0)='cgroup\x00') syz_open_pts(r14, 0x201) syz_pidfd_open(r35, 0x0) r36 = pkey_alloc(0x0, 0x2) syz_pkey_set(r36, 0x0) syz_socket_connect_nvme_tcp() r37 = syz_usb_connect(0x3, 0x504, &(0x7f0000006600)={{0x12, 0x1, 0x310, 0xf, 0x36, 0x49, 0x8, 0x7d0, 0x4101, 0x4624, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x4f2, 0x3, 0x1, 0xa2, 0x40, 0x64, [{{0x9, 0x4, 0xc2, 0x7, 0xa, 0x50, 0xb3, 0x17, 0x7, [@hid_hid={0x9, 0x21, 0x3, 0xdf, 0x1, {0x22, 0x238}}, @uac_as={[@as_header={0x7, 0x24, 0x1, 0x2, 0x2, 0x2}, @format_type_i_continuous={0xb, 0x24, 0x2, 0x1, 0xde, 0x2, 0x0, 0x5, "", "116df7"}, @format_type_ii_discrete={0xa, 0x24, 0x2, 0x2, 0x8, 0x3, 0x7, ';'}, @format_type_i_continuous={0xa, 0x24, 0x2, 0x1, 0x4, 0x3, 0x1a, 0x9, "0f58"}, @format_type_ii_discrete={0xc, 0x24, 0x2, 0x2, 0xf270, 0x100, 0x7, "3129f9"}, @format_type_i_continuous={0xb, 0x24, 0x2, 0x1, 0x1, 0x3, 0xf9, 0xa3, "", "540613"}]}], [{{0x9, 0x5, 0x3, 0x38, 0x8, 0x1, 0xf9, 0x0, [@uac_iso={0x7, 0x25, 0x1, 0x1, 0x80, 0xffb0}, @generic={0x62, 0xe, "0bef679d6359d71a144a38a22834d12bd19c60b65829f44ebe6b1258a3a7a0cc60f30007c2c4d2a3cb88fb6beb580e628147114ffc6a4e39b19e718fc2cd0fa5af688649abe3db58d0707203283b6bdca05f49fb16b3618fcf4dd01cb2ef3509"}]}}, {{0x9, 0x5, 0x4, 0x0, 0x20, 0x1, 0x2, 0x5, [@generic={0x4e, 0xa, "aade99ccf348061ad92225e05a396a2ebe892ca65de9efa665821e34200c5caa943c9b1a3eb10828e13815e6120c4787a4d395b1e32a8ba1ffb991375879d517862de6e9cb6f723335dd156a"}]}}, {{0x9, 0x5, 0x3, 0xc, 0x3ff, 0x7, 0x0, 0x7f, [@generic={0x33, 0xe, "08b928c563b3fbc136beaf22bf46e0cf55e3f262485f30b28a3f9a3ec901ce8066c6788d469526c55bf0c2b3ca5005539a"}]}}, {{0x9, 0x5, 0xb, 0x4, 0x3ff, 0x3, 0x40, 0x7f, [@uac_iso={0x7, 0x25, 0x1, 0x87, 0x9, 0x4e}, @generic={0xcb, 0x11, "3b9dcacc679086d78f927ab634935a18813b23cceffea69b630aa97cc469907afac2a30327adeb901d9fb900ad82138098cbff5fed7fee2c7d701290ce4ad020a9da29675f8f051399879db57022b89c990120513aaa70c51847b128dd73bdea25cbb545c1ae8352024ca93cd7ea881cbb0920eedef072efe9da61b7bd77a3c085d712c142ca88c39f8edd17d6fb9a7ef8d0fad5a15a333e7ed05e7e9ae6e2a464c3159ab1a60e33afbf29a2f678c8c9e2f8f7a8d03d5582529b277b4be85583e5d81bc95749773042"}]}}, {{0x9, 0x5, 0x1, 0x3, 0x8, 0xe, 0x8, 0x7f, [@generic={0x72, 0x6, "6ee2410469b7a8b23e3255a554b63d5beb1b34b4871894e3df69e7558ce56cc83b83ae1ac9d1dec0882d040a7801a300c7eac26d78d2daff6bd47caca500d46c1b5a0b9e1ada0e7b606b6fd6b39db81c7c954c04d4ede980ea2ca80b113bdb4be747e1b6dc9281d77e85683aaac6534c"}]}}, {{0x9, 0x5, 0xb, 0xc, 0x5bf5a5d27b9960e1, 0x0, 0x1, 0x7}}, {{0x9, 0x5, 0x0, 0x0, 0x10, 0x5, 0x1, 0x77}}, {{0x9, 0x5, 0x5, 0x0, 0x208, 0x1b, 0x9, 0x7}}, {{0x9, 0x5, 0xf, 0x0, 0x40, 0x30, 0x5, 0x7, [@generic={0x50, 0x6, "011daf9ad3aea956d0184e8907d7b0b0a6aa9e921ac64d7a9e5a0ce5b5e0afb47868c9c4a76b6509835bf9ee45a7891eaad172a875634f7f36260124669b2d1b04c2fda38cc936921cb561245efa"}, @generic={0xb7, 0x21, "53542a37449c9d1a4e696a99527d5ad5bdad1c7e724128df50295aa0c61401ca6cd5cd356977f617e8b11448466269116af93b9dce05ded48792719f65bfa91da16b85ee1d6236084d8170f97c0a74f102663c645b0ee1b0fa7904e646438d8b16218604561c1abb98289e3ecba88e78f67361478774462a4d82749646452004b2482082e9c1b2f2972419f6f752e1bec5e1925fce215edb8265344da85b85164db3c633e4e431fec4c609664eac2b6b1f5f7bdc10"}]}}, {{0x9, 0x5, 0xc, 0x10, 0x10, 0x3, 0xf9, 0xff, [@generic={0xba, 0x23, "5c48a51f46fa078d84ce434e722a7fa4e7021ae9d9b76677366de6a10ab3e94e0969d7fc2a24536e1150d94672c5418b02951def7e20c7dfe0aa26adbf0bfd8f6dd351fa30990713537134af9c14fa84dee2b95af8e134542b5a1ad540329a97cbdd1a2422f13e6e03b49f7105a6bf4900ea723fbe14f21d182aeef2cf5162591f8bd38b85d45d723cef02132b5e45467dd8d430c378b8bf2d98403267010379de7bd04c800dfd5fae0c0ddac0b5cffde98ca400dce30ddd"}]}}]}}, {{0x9, 0x4, 0xfc, 0x4, 0x1, 0xff, 0x6, 0x39, 0xc, [], [{{0x9, 0x5, 0x0, 0x2, 0x400, 0x9, 0xdf, 0x2, [@uac_iso={0x7, 0x25, 0x1, 0x3, 0x8, 0x8000}]}}]}}, {{0x9, 0x4, 0x9d, 0x1, 0x3, 0x48, 0x48, 0x40, 0xa, [], [{{0x9, 0x5, 0x1, 0x10, 0x40, 0x2, 0xf1, 0xc, [@uac_iso={0x7, 0x25, 0x1, 0x81, 0x81, 0x5}]}}, {{0x9, 0x5, 0x7, 0x8, 0x40, 0x6, 0x0, 0x1, [@uac_iso={0x7, 0x25, 0x1, 0x2, 0x0, 0x10}, @generic={0x6, 0xe, "555dc78c"}]}}, {{0x9, 0x5, 0x5, 0x4, 0x200, 0x9, 0x40, 0x3}}]}}]}}]}}, &(0x7f0000006c00)={0xa, &(0x7f0000006b40)={0xa, 0x6, 0x200, 0x3b, 0x5, 0x9, 0x40, 0xa4}, 0x30, &(0x7f0000006b80)={0x5, 0xf, 0x30, 0x3, [@ptm_cap={0x3}, @ssp_cap={0x10, 0x10, 0xa, 0x1c, 0x1, 0x7ffffd3, 0xff00, 0x1fb, [0x0]}, @ssp_cap={0x18, 0x10, 0xa, 0xf, 0x3, 0x8, 0xff00, 0xd00, [0x0, 0xffc0cf, 0xff0000]}]}, 0x1, [{0x4, &(0x7f0000006bc0)=@lang_id={0x4, 0x3, 0x42f}}]}) r38 = syz_usb_connect_ath9k(0x3, 0x5a, &(0x7f0000006c40)={{0x12, 0x1, 0x200, 0xff, 0xff, 0xff, 0x40, 0xcf3, 0x9271, 0x108, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x48}}]}}, 0x0) r39 = syz_usb_connect$cdc_ecm(0x6, 0x8f, &(0x7f0000006cc0)={{0x12, 0x1, 0x310, 0x2, 0x0, 0x0, 0x8, 0x525, 0xa4a1, 0x40, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x7d, 0x1, 0x1, 0x6, 0x10, 0xb, [{{0x9, 0x4, 0x0, 0x4, 0x3, 0x2, 0x6, 0x0, 0xe, {{0xb, 0x24, 0x6, 0x0, 0x0, "d60132f149c6"}, {0x5, 0x24, 0x0, 0xbb8}, {0xd, 0x24, 0xf, 0x1, 0x7, 0x32a, 0x8, 0x1f}, [@obex={0x5, 0x24, 0x15, 0x101}, @mdlm={0x15, 0x24, 0x12, 0xfffc}, @network_terminal={0x7, 0x24, 0xa, 0xb, 0x9, 0xf, 0x2}, @call_mgmt={0x5, 0x24, 0x1, 0x1, 0xff}, @obex={0x5, 0x24, 0x15, 0x7ff}, @mbim_extended={0x8, 0x24, 0x1c, 0x5, 0x32, 0xa}]}, {[{{0x9, 0x5, 0x81, 0x3, 0x10, 0x7, 0x99, 0xb2}}], {{0x9, 0x5, 0x82, 0x2, 0x8, 0x1a, 0x7, 0xc4}}, {{0x9, 0x5, 0x3, 0x2, 0x3ff, 0xa6, 0x3, 0xa7}}}}}]}}]}}, &(0x7f0000007240)={0xa, &(0x7f0000006d80)={0xa, 0x6, 0x300, 0xfb, 0x3, 0xc, 0xff, 0x1}, 0x3c, &(0x7f0000006dc0)={0x5, 0xf, 0x3c, 0x6, [@ext_cap={0x7, 0x10, 0x2, 0x4, 0x7, 0x7, 0x56a9}, @wireless={0xb, 0x10, 0x1, 0x4, 0x42, 0x2, 0x3, 0x63ac, 0x9}, @ptm_cap={0x3}, @ext_cap={0x7, 0x10, 0x2, 0x1a, 0x7, 0xb, 0xd5}, @ssp_cap={0x10, 0x10, 0xa, 0x7f, 0x1, 0x12f, 0xf00, 0x1, [0x3fc0]}, @wireless={0xb, 0x10, 0x1, 0x8, 0x40, 0x7, 0x5, 0x2, 0x4}]}, 0x8, [{0x78, &(0x7f0000006e00)=@string={0x78, 0x3, "d7b4cadb72dce27ca7fb5209aad1b3585c8188f06126d3f18edd4cfa47addbd2a6715dd4adfa697f02bcb089ed2013268885f9c785bd7c5d4ee50de3cecd7a9d0b7b2e708226e8acb1e908b1f5c0c2a8132465e451fe49f15e60c8d3b9c84305d0dd8f634480050259cac3ce9cfc95092bd7e491866d"}}, {0x13, &(0x7f0000006e80)=@string={0x13, 0x3, "7d97d9eb8af2943b9985d30caaead89b5a"}}, {0x4, &(0x7f0000006ec0)=@lang_id={0x4, 0x3, 0x44a}}, {0x4, &(0x7f0000006f00)=@lang_id={0x4, 0x3, 0x1c09}}, {0x93, &(0x7f0000006f40)=@string={0x93, 0x3, "a7e5529238f796c9000c753f41b8183140f3914b76bf1c428ebe8d39c6f072b481ecad746274e7c538790d8c730d20517a2244a3781b115c07d40e9ec9c059f12d0d15f46ccf0cde26efa9d02a119e2cc5627c7f4241244d0843ef0018b12fc3cd467b5fdce58a6975d07ac352a42f1615178dcb0990aeca46461306816becdeb896bac765ded81ebd75ba4d97229b15a9"}}, {0xc2, &(0x7f0000007000)=@string={0xc2, 0x3, "d5a3d483012b31e49dfa33fd9593b4b668aa6f3f39301837d951daf256316819f5e71fa651bb06b2af65af27c7bf0fda1eaa1e32231b75f4d06d4923c76013e9d76a12202816ff8740a9fb4f2eceb27bd2e1ab1e7bd4ba7314b33d15e0fe65aa2b2e7ffb3236cb615493391feab3bfb828182fb60c4fd6fef422e106f384be633905ca1aaf83d9ddb2a2902e2a117de4e596145809b3b34b1ea432b412391ffb25ac255e7da11d994e7e9e98e0723a2757e580959dae6fa7ac2afb8dc5384b4a"}}, {0x5b, &(0x7f0000007100)=@string={0x5b, 0x3, "a794090968e46e97b7269fcae0f818bf9a99a50de60e5cda684721be6dc34820f912c338d7dc8ac50d93fc92a2ebde1a02652089726608a9e5877f4cacf91b9eec5b5eb2fc7fa7bb3d26607537f0e55d00793e7cf13bbb367e"}}, {0x90, &(0x7f0000007180)=@string={0x90, 0x3, "f9926b0dae8c462352105ed1c4d3ff50cc9ce982c397e92e576101317190c2327a2ba723844149e55f4b961d0f0defbc7edb70f5d61169074265acd81ceec5a15b66a5e5009236d062994af9afcbe04736aaad6bb55cb30e057c42d0df7481603c3c959b5e4e20f05382a9d9ad4c01680ae3597ef403dedf0b6c53fdc70d13ed116ef9ea902093f1c9f4af4cec25"}}]}) syz_usb_control_io(r39, &(0x7f0000007480)={0x2c, &(0x7f00000072c0)={0x40, 0x7, 0x1b, {0x1b, 0xa, "90730f1d9e91d2e1df577143e18c680eace6d6c12299246128"}}, &(0x7f0000007300)={0x0, 0x3, 0x44, @string={0x44, 0x3, "87d74dd46096809a8f4988ddaa95a532fbc22d8585d1592857ad0ab00c17a4fef3b229a02fe0e3649316bed9f44f588b1f0b47bc86705129440938bd68a29a84f829"}}, &(0x7f0000007380)={0x0, 0xf, 0x41, {0x5, 0xf, 0x41, 0x4, [@ssp_cap={0x20, 0x10, 0xa, 0x0, 0x5, 0xe85, 0xf00, 0x3, [0xff00a0, 0xff00f0, 0x30, 0xf, 0xdfbf]}, @ext_cap={0x7, 0x10, 0x2, 0x4, 0x4, 0x1, 0xff}, @wireless={0xb, 0x10, 0x1, 0x2, 0x1, 0x1, 0x3, 0x9, 0x8}, @ss_cap={0xa, 0x10, 0x3, 0x2, 0x4, 0x3, 0xb6, 0x5}]}}, &(0x7f0000007400)={0x20, 0x29, 0xf, {0xf, 0x29, 0xf, 0x4, 0x6, 0x32, "b2c84f72", "f5fb7b90"}}, &(0x7f0000007440)={0x20, 0x2a, 0xc, {0xc, 0x2a, 0x3a, 0x60, 0x4, 0x4, 0x7, 0x8001, 0x8}}}, &(0x7f0000007980)={0x84, &(0x7f00000074c0)={0x0, 0x0, 0xcf, "9f51c6ee54bfc1fc30d787499ab24493c2f30f78fe088e724ad29badb6c2406874a909d80e000075bbe92f6f4e8b3514481d12b869deb6f47f3b458369b7f024fcc02319e38cb7467c76b370d378ee0256daa3acea1f71be5e4c7d8a50037ba84e62445bbd990a26b44f60198d63505fbf005b96637abf5eb692a2ed0d582692e3f259387ed9d1955917dc53a246eb20e281e78386ed8734b81075e43b5b3e15ea60dbd497e07ad8847992dd87831b20d05263c108d70117e52170efac1777d3d376876358c2297172b2a023b52c05"}, &(0x7f00000075c0)={0x0, 0xa, 0x1, 0x2}, &(0x7f0000007600)={0x0, 0x8, 0x1, 0xfc}, &(0x7f0000007640)={0x20, 0x0, 0x4, {0x3, 0x1}}, &(0x7f0000007680)={0x20, 0x0, 0x4, {0x1d20, 0x20}}, &(0x7f00000076c0)={0x40, 0x7, 0x2, 0xfff8}, &(0x7f0000007700)={0x40, 0x9, 0x1, 0xd}, &(0x7f0000007740)={0x40, 0xb, 0x2, "2289"}, &(0x7f0000007780)={0x40, 0xf, 0x2, 0x2}, &(0x7f00000077c0)={0x40, 0x13, 0x6, @broadcast}, &(0x7f0000007800)={0x40, 0x17, 0x6, @random="eefa7a620165"}, &(0x7f0000007840)={0x40, 0x19, 0x2, "01d3"}, &(0x7f0000007880)={0x40, 0x1a, 0x2, 0x5}, &(0x7f00000078c0)={0x40, 0x1c, 0x1, 0xff}, &(0x7f0000007900)={0x40, 0x1e, 0x1, 0xf7}, &(0x7f0000007940)={0x40, 0x21, 0x1, 0xb}}) syz_usb_disconnect(r38) r40 = syz_usb_connect$hid(0x0, 0x3f, &(0x7f0000007a40)={{0x12, 0x1, 0x110, 0x0, 0x0, 0x0, 0xff, 0x46d, 0xc08d, 0x40, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x2d, 0x1, 0x1, 0x4, 0x50, 0x10, [{{0x9, 0x4, 0x0, 0xf9, 0x2, 0x3, 0x1, 0x2, 0x5, {0x9, 0x21, 0x81, 0x8, 0x1, {0x22, 0x6e7}}, {{{0x9, 0x5, 0x81, 0x3, 0x10, 0x8, 0xc, 0x6e}}, [{{0x9, 0x5, 0x2, 0x3, 0x200, 0x8, 0x1, 0x50}}]}}}]}}]}}, &(0x7f0000007f40)={0xa, &(0x7f0000007a80)={0xa, 0x6, 0x310, 0x48, 0xa5, 0xca, 0x8, 0x10}, 0x30, &(0x7f0000007ac0)={0x5, 0xf, 0x30, 0x4, [@ss_cap={0xa, 0x10, 0x3, 0x0, 0x5, 0x0, 0x1, 0x8a}, @ssp_cap={0x10, 0x10, 0xa, 0xa, 0x1, 0x0, 0xf00f, 0x7, [0x3f00]}, @ss_cap={0xa, 0x10, 0x3, 0x0, 0x4, 0x4, 0x8, 0xfff8}, @ext_cap={0x7, 0x10, 0x2, 0x4, 0x0, 0x5, 0x8001}]}, 0xa, [{0x4, &(0x7f0000007b00)=@lang_id={0x4, 0x3, 0x437}}, {0xf2, &(0x7f0000007b40)=@string={0xf2, 0x3, "f0019969b38f6afabd6c105967f2b79c116bf52e6af549271939cbeacdab5c8503cee7d1a67a62ea491b6b2f8647133f15b8e9707e4a77577e8afd8a1284459b66c7be93c43e84efcfc2f73e93d295998cc2f495ae5b1a3d5e12ef6e64664a3b5c79528b0119f78b0a61d807232537eb3d9c09add93823e6f878bbba00898be1017faf4e5f14d387401c45645954c04f8c83f9e5f0ae9913d9ccb88e7516d80f8e21c3b610429258169248a016de144abce7905f4dd3bf2698e9f3a5febc7c10ef4ed298e5f8facbb3c9344bb3ab33568a0f64f428d60dabe2bfe795df0603cdf76f606241fdd89c8ff9fe55ee2395fd"}}, {0x4, &(0x7f0000007c40)=@lang_id={0x4, 0x3, 0x2c0a}}, {0x89, &(0x7f0000007c80)=@string={0x89, 0x3, "05b7615d7a2ba83f5916d585e5290669a0c243e1c65f43d6c7680767f0da6805ce3566413a20f4b8664b77799c5c6061d9d19075d2f89b880caa622d3aa9108e5222e55336bf7850d2f7990a1314b0be81d606f8a99a6705e0ac44872072366abaea5f97d7ca08ed1eb25b707c92991e5537f945aa401d761349b628d6c928c1cfe5b09fd13272"}}, {0xb8, &(0x7f0000007d40)=@string={0xb8, 0x3, "f04a78648bb13ad6c53b44e42ed2f24d3205bf5161674ff375ecfa9f710dd4d52e29779bc4c1d41faf1b2e02fa2cb4ca6c449681b5c88b3775f82babde2258f8a001d811f8b64ce0753b228c161809770f39160ba4ea92490a38f82c3f18b44c81a148c48bbc4f716e64a85a985f3570d6132a4ac6e97f0ae7296582879c5d4e277be3d5867dc3df2606879bd5281225a34f3feba436eec16ddfbe611574be645a71c5e8be494e27918333f2431aeff2e9fed0608428"}}, {0x4, &(0x7f0000007e00)=@lang_id={0x4, 0x3, 0x40f}}, {0x4, &(0x7f0000007e40)=@lang_id={0x4, 0x3, 0x860}}, {0x4, &(0x7f0000007e80)=@lang_id={0x4, 0x3, 0xf4ef}}, {0x4, &(0x7f0000007ec0)=@lang_id={0x4, 0x3, 0x3001}}, {0x4, &(0x7f0000007f00)=@lang_id={0x4, 0x3, 0x2009}}]}) syz_usb_ep_read(r40, 0x0, 0x1000, &(0x7f0000008000)=""/4096) syz_usb_ep_write(r37, 0x6, 0x94, &(0x7f0000009000)="57bba2f04f3945da7a47037710f6d53d8dfad8a96c57e11cf5fcfee434fce88038e1904ecc2712334118e5002b0c107c286eb90314233fd5ce1d9ea5da0076741102d88517463ff118bd931282412de1f5ea71eb2bec91b82b7f7b64f8aae1d58e32de1deeb1c8264d59d639a1945f0090275e6bdbf18e86685ccb60a5fec9c7cebac5d05b5c84e6116f89d443fad3ce74d82080") syz_usbip_server_init(0x5) csource_test.go:158: failed to build program: // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifndef __NR_clone3 #define __NR_clone3 435 #endif #ifndef __NR_io_uring_setup #define __NR_io_uring_setup 425 #endif #ifndef __NR_memfd_create #define __NR_memfd_create 319 #endif #ifndef __NR_pidfd_open #define __NR_pidfd_open 434 #endif #ifndef __NR_pkey_alloc #define __NR_pkey_alloc 330 #endif #ifndef __NR_statx #define __NR_statx 332 #endif static unsigned long long procid; static void sleep_ms(uint64_t ms) { usleep(ms * 1000); } static uint64_t current_time_ms(void) { struct timespec ts; if (clock_gettime(CLOCK_MONOTONIC, &ts)) exit(1); return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000; } static void use_temporary_dir(void) { char tmpdir_template[] = "./syzkaller.XXXXXX"; char* tmpdir = mkdtemp(tmpdir_template); if (!tmpdir) exit(1); if (chmod(tmpdir, 0777)) exit(1); if (chdir(tmpdir)) exit(1); } static void thread_start(void* (*fn)(void*), void* arg) { pthread_t th; pthread_attr_t attr; pthread_attr_init(&attr); pthread_attr_setstacksize(&attr, 128 << 10); int i = 0; for (; i < 100; i++) { if (pthread_create(&th, &attr, fn, arg) == 0) { pthread_attr_destroy(&attr); return; } if (errno == EAGAIN) { usleep(50); continue; } break; } exit(1); } #define BITMASK(bf_off,bf_len) (((1ull << (bf_len)) - 1) << (bf_off)) #define STORE_BY_BITMASK(type,htobe,addr,val,bf_off,bf_len) *(type*)(addr) = htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) | (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len)))) typedef struct { int state; } event_t; static void event_init(event_t* ev) { ev->state = 0; } static void event_reset(event_t* ev) { ev->state = 0; } static void event_set(event_t* ev) { if (ev->state) exit(1); __atomic_store_n(&ev->state, 1, __ATOMIC_RELEASE); syscall(SYS_futex, &ev->state, FUTEX_WAKE | FUTEX_PRIVATE_FLAG, 1000000); } static void event_wait(event_t* ev) { while (!__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE)) syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, 0); } static int event_isset(event_t* ev) { return __atomic_load_n(&ev->state, __ATOMIC_ACQUIRE); } static int event_timedwait(event_t* ev, uint64_t timeout) { uint64_t start = current_time_ms(); uint64_t now = start; for (;;) { uint64_t remain = timeout - (now - start); struct timespec ts; ts.tv_sec = remain / 1000; ts.tv_nsec = (remain % 1000) * 1000 * 1000; syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, &ts); if (__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE)) return 1; now = current_time_ms(); if (now - start > timeout) return 0; } } static bool write_file(const char* file, const char* what, ...) { char buf[1024]; va_list args; va_start(args, what); vsnprintf(buf, sizeof(buf), what, args); va_end(args); buf[sizeof(buf) - 1] = 0; int len = strlen(buf); int fd = open(file, O_WRONLY | O_CLOEXEC); if (fd == -1) return false; if (write(fd, buf, len) != len) { int err = errno; close(fd); errno = err; return false; } close(fd); return true; } struct nlmsg { char* pos; int nesting; struct nlattr* nested[8]; char buf[4096]; }; static void netlink_init(struct nlmsg* nlmsg, int typ, int flags, const void* data, int size) { memset(nlmsg, 0, sizeof(*nlmsg)); struct nlmsghdr* hdr = (struct nlmsghdr*)nlmsg->buf; hdr->nlmsg_type = typ; hdr->nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK | flags; memcpy(hdr + 1, data, size); nlmsg->pos = (char*)(hdr + 1) + NLMSG_ALIGN(size); } static void netlink_attr(struct nlmsg* nlmsg, int typ, const void* data, int size) { struct nlattr* attr = (struct nlattr*)nlmsg->pos; attr->nla_len = sizeof(*attr) + size; attr->nla_type = typ; if (size > 0) memcpy(attr + 1, data, size); nlmsg->pos += NLMSG_ALIGN(attr->nla_len); } static int netlink_send_ext(struct nlmsg* nlmsg, int sock, uint16_t reply_type, int* reply_len, bool dofail) { if (nlmsg->pos > nlmsg->buf + sizeof(nlmsg->buf) || nlmsg->nesting) exit(1); struct nlmsghdr* hdr = (struct nlmsghdr*)nlmsg->buf; hdr->nlmsg_len = nlmsg->pos - nlmsg->buf; struct sockaddr_nl addr; memset(&addr, 0, sizeof(addr)); addr.nl_family = AF_NETLINK; ssize_t n = sendto(sock, nlmsg->buf, hdr->nlmsg_len, 0, (struct sockaddr*)&addr, sizeof(addr)); if (n != (ssize_t)hdr->nlmsg_len) { if (dofail) exit(1); return -1; } n = recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0); if (reply_len) *reply_len = 0; if (n < 0) { if (dofail) exit(1); return -1; } if (n < (ssize_t)sizeof(struct nlmsghdr)) { errno = EINVAL; if (dofail) exit(1); return -1; } if (hdr->nlmsg_type == NLMSG_DONE) return 0; if (reply_len && hdr->nlmsg_type == reply_type) { *reply_len = n; return 0; } if (n < (ssize_t)(sizeof(struct nlmsghdr) + sizeof(struct nlmsgerr))) { errno = EINVAL; if (dofail) exit(1); return -1; } if (hdr->nlmsg_type != NLMSG_ERROR) { errno = EINVAL; if (dofail) exit(1); return -1; } errno = -((struct nlmsgerr*)(hdr + 1))->error; return -errno; } static int netlink_send(struct nlmsg* nlmsg, int sock) { return netlink_send_ext(nlmsg, sock, 0, NULL, true); } static int netlink_query_family_id(struct nlmsg* nlmsg, int sock, const char* family_name, bool dofail) { struct genlmsghdr genlhdr; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = CTRL_CMD_GETFAMILY; netlink_init(nlmsg, GENL_ID_CTRL, 0, &genlhdr, sizeof(genlhdr)); netlink_attr(nlmsg, CTRL_ATTR_FAMILY_NAME, family_name, strnlen(family_name, GENL_NAMSIZ - 1) + 1); int n = 0; int err = netlink_send_ext(nlmsg, sock, GENL_ID_CTRL, &n, dofail); if (err < 0) { return -1; } uint16_t id = 0; struct nlattr* attr = (struct nlattr*)(nlmsg->buf + NLMSG_HDRLEN + NLMSG_ALIGN(sizeof(genlhdr))); for (; (char*)attr < nlmsg->buf + n; attr = (struct nlattr*)((char*)attr + NLMSG_ALIGN(attr->nla_len))) { if (attr->nla_type == CTRL_ATTR_FAMILY_ID) { id = *(uint16_t*)(attr + 1); break; } } if (!id) { errno = EINVAL; return -1; } recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0); return id; } static void netlink_device_change(struct nlmsg* nlmsg, int sock, const char* name, bool up, const char* master, const void* mac, int macsize, const char* new_name) { struct ifinfomsg hdr; memset(&hdr, 0, sizeof(hdr)); if (up) hdr.ifi_flags = hdr.ifi_change = IFF_UP; hdr.ifi_index = if_nametoindex(name); netlink_init(nlmsg, RTM_NEWLINK, 0, &hdr, sizeof(hdr)); if (new_name) netlink_attr(nlmsg, IFLA_IFNAME, new_name, strlen(new_name)); if (master) { int ifindex = if_nametoindex(master); netlink_attr(nlmsg, IFLA_MASTER, &ifindex, sizeof(ifindex)); } if (macsize) netlink_attr(nlmsg, IFLA_ADDRESS, mac, macsize); int err = netlink_send(nlmsg, sock); if (err < 0) { } } static int netlink_add_addr(struct nlmsg* nlmsg, int sock, const char* dev, const void* addr, int addrsize) { struct ifaddrmsg hdr; memset(&hdr, 0, sizeof(hdr)); hdr.ifa_family = addrsize == 4 ? AF_INET : AF_INET6; hdr.ifa_prefixlen = addrsize == 4 ? 24 : 120; hdr.ifa_scope = RT_SCOPE_UNIVERSE; hdr.ifa_index = if_nametoindex(dev); netlink_init(nlmsg, RTM_NEWADDR, NLM_F_CREATE | NLM_F_REPLACE, &hdr, sizeof(hdr)); netlink_attr(nlmsg, IFA_LOCAL, addr, addrsize); netlink_attr(nlmsg, IFA_ADDRESS, addr, addrsize); return netlink_send(nlmsg, sock); } static void netlink_add_addr4(struct nlmsg* nlmsg, int sock, const char* dev, const char* addr) { struct in_addr in_addr; inet_pton(AF_INET, addr, &in_addr); int err = netlink_add_addr(nlmsg, sock, dev, &in_addr, sizeof(in_addr)); if (err < 0) { } } static void netlink_add_addr6(struct nlmsg* nlmsg, int sock, const char* dev, const char* addr) { struct in6_addr in6_addr; inet_pton(AF_INET6, addr, &in6_addr); int err = netlink_add_addr(nlmsg, sock, dev, &in6_addr, sizeof(in6_addr)); if (err < 0) { } } static void netlink_add_neigh(struct nlmsg* nlmsg, int sock, const char* name, const void* addr, int addrsize, const void* mac, int macsize) { struct ndmsg hdr; memset(&hdr, 0, sizeof(hdr)); hdr.ndm_family = addrsize == 4 ? AF_INET : AF_INET6; hdr.ndm_ifindex = if_nametoindex(name); hdr.ndm_state = NUD_PERMANENT; netlink_init(nlmsg, RTM_NEWNEIGH, NLM_F_EXCL | NLM_F_CREATE, &hdr, sizeof(hdr)); netlink_attr(nlmsg, NDA_DST, addr, addrsize); netlink_attr(nlmsg, NDA_LLADDR, mac, macsize); int err = netlink_send(nlmsg, sock); if (err < 0) { } } static struct nlmsg nlmsg; static int tunfd = -1; #define TUN_IFACE "syz_tun" #define LOCAL_MAC 0xaaaaaaaaaaaa #define REMOTE_MAC 0xaaaaaaaaaabb #define LOCAL_IPV4 "172.20.20.170" #define REMOTE_IPV4 "172.20.20.187" #define LOCAL_IPV6 "fe80::aa" #define REMOTE_IPV6 "fe80::bb" #define IFF_NAPI 0x0010 static void initialize_tun(void) { tunfd = open("/dev/net/tun", O_RDWR | O_NONBLOCK); if (tunfd == -1) { printf("tun: can't open /dev/net/tun: please enable CONFIG_TUN=y\n"); printf("otherwise fuzzing or reproducing might not work as intended\n"); return; } const int kTunFd = 200; if (dup2(tunfd, kTunFd) < 0) exit(1); close(tunfd); tunfd = kTunFd; struct ifreq ifr; memset(&ifr, 0, sizeof(ifr)); strncpy(ifr.ifr_name, TUN_IFACE, IFNAMSIZ); ifr.ifr_flags = IFF_TAP | IFF_NO_PI; if (ioctl(tunfd, TUNSETIFF, (void*)&ifr) < 0) { exit(1); } char sysctl[64]; sprintf(sysctl, "/proc/sys/net/ipv6/conf/%s/accept_dad", TUN_IFACE); write_file(sysctl, "0"); sprintf(sysctl, "/proc/sys/net/ipv6/conf/%s/router_solicitations", TUN_IFACE); write_file(sysctl, "0"); int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE); if (sock == -1) exit(1); netlink_add_addr4(&nlmsg, sock, TUN_IFACE, LOCAL_IPV4); netlink_add_addr6(&nlmsg, sock, TUN_IFACE, LOCAL_IPV6); uint64_t macaddr = REMOTE_MAC; struct in_addr in_addr; inet_pton(AF_INET, REMOTE_IPV4, &in_addr); netlink_add_neigh(&nlmsg, sock, TUN_IFACE, &in_addr, sizeof(in_addr), &macaddr, ETH_ALEN); struct in6_addr in6_addr; inet_pton(AF_INET6, REMOTE_IPV6, &in6_addr); netlink_add_neigh(&nlmsg, sock, TUN_IFACE, &in6_addr, sizeof(in6_addr), &macaddr, ETH_ALEN); macaddr = LOCAL_MAC; netlink_device_change(&nlmsg, sock, TUN_IFACE, true, 0, &macaddr, ETH_ALEN, NULL); close(sock); } const int kInitNetNsFd = 201; #define WIFI_INITIAL_DEVICE_COUNT 2 #define WIFI_MAC_BASE { 0x08, 0x02, 0x11, 0x00, 0x00, 0x00} #define WIFI_IBSS_BSSID { 0x50, 0x50, 0x50, 0x50, 0x50, 0x50} #define WIFI_IBSS_SSID { 0x10, 0x10, 0x10, 0x10, 0x10, 0x10} #define WIFI_DEFAULT_FREQUENCY 2412 #define WIFI_DEFAULT_SIGNAL 0 #define WIFI_DEFAULT_RX_RATE 1 #define HWSIM_CMD_REGISTER 1 #define HWSIM_CMD_FRAME 2 #define HWSIM_CMD_NEW_RADIO 4 #define HWSIM_ATTR_SUPPORT_P2P_DEVICE 14 #define HWSIM_ATTR_PERM_ADDR 22 #define IF_OPER_UP 6 struct join_ibss_props { int wiphy_freq; bool wiphy_freq_fixed; uint8_t* mac; uint8_t* ssid; int ssid_len; }; static int set_interface_state(const char* interface_name, int on) { struct ifreq ifr; int sock = socket(AF_INET, SOCK_DGRAM, 0); if (sock < 0) { return -1; } memset(&ifr, 0, sizeof(ifr)); strcpy(ifr.ifr_name, interface_name); int ret = ioctl(sock, SIOCGIFFLAGS, &ifr); if (ret < 0) { close(sock); return -1; } if (on) ifr.ifr_flags |= IFF_UP; else ifr.ifr_flags &= ~IFF_UP; ret = ioctl(sock, SIOCSIFFLAGS, &ifr); close(sock); if (ret < 0) { return -1; } return 0; } static int nl80211_set_interface(struct nlmsg* nlmsg, int sock, int nl80211_family, uint32_t ifindex, uint32_t iftype, bool dofail) { struct genlmsghdr genlhdr; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = NL80211_CMD_SET_INTERFACE; netlink_init(nlmsg, nl80211_family, 0, &genlhdr, sizeof(genlhdr)); netlink_attr(nlmsg, NL80211_ATTR_IFINDEX, &ifindex, sizeof(ifindex)); netlink_attr(nlmsg, NL80211_ATTR_IFTYPE, &iftype, sizeof(iftype)); int err = netlink_send_ext(nlmsg, sock, 0, NULL, dofail); if (err < 0) { } return err; } static int nl80211_join_ibss(struct nlmsg* nlmsg, int sock, int nl80211_family, uint32_t ifindex, struct join_ibss_props* props, bool dofail) { struct genlmsghdr genlhdr; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = NL80211_CMD_JOIN_IBSS; netlink_init(nlmsg, nl80211_family, 0, &genlhdr, sizeof(genlhdr)); netlink_attr(nlmsg, NL80211_ATTR_IFINDEX, &ifindex, sizeof(ifindex)); netlink_attr(nlmsg, NL80211_ATTR_SSID, props->ssid, props->ssid_len); netlink_attr(nlmsg, NL80211_ATTR_WIPHY_FREQ, &(props->wiphy_freq), sizeof(props->wiphy_freq)); if (props->mac) netlink_attr(nlmsg, NL80211_ATTR_MAC, props->mac, ETH_ALEN); if (props->wiphy_freq_fixed) netlink_attr(nlmsg, NL80211_ATTR_FREQ_FIXED, NULL, 0); int err = netlink_send_ext(nlmsg, sock, 0, NULL, dofail); if (err < 0) { } return err; } static int get_ifla_operstate(struct nlmsg* nlmsg, int ifindex, bool dofail) { struct ifinfomsg info; memset(&info, 0, sizeof(info)); info.ifi_family = AF_UNSPEC; info.ifi_index = ifindex; int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE); if (sock == -1) { return -1; } netlink_init(nlmsg, RTM_GETLINK, 0, &info, sizeof(info)); int n; int err = netlink_send_ext(nlmsg, sock, RTM_NEWLINK, &n, dofail); close(sock); if (err) { return -1; } struct rtattr* attr = IFLA_RTA(NLMSG_DATA(nlmsg->buf)); for (; RTA_OK(attr, n); attr = RTA_NEXT(attr, n)) { if (attr->rta_type == IFLA_OPERSTATE) return *((int32_t*)RTA_DATA(attr)); } return -1; } static int await_ifla_operstate(struct nlmsg* nlmsg, char* interface, int operstate, bool dofail) { int ifindex = if_nametoindex(interface); while (true) { usleep(1000); int ret = get_ifla_operstate(nlmsg, ifindex, dofail); if (ret < 0) return ret; if (ret == operstate) return 0; } return 0; } static int nl80211_setup_ibss_interface(struct nlmsg* nlmsg, int sock, int nl80211_family_id, char* interface, struct join_ibss_props* ibss_props, bool dofail) { int ifindex = if_nametoindex(interface); if (ifindex == 0) { return -1; } int ret = nl80211_set_interface(nlmsg, sock, nl80211_family_id, ifindex, NL80211_IFTYPE_ADHOC, dofail); if (ret < 0) { return -1; } ret = set_interface_state(interface, 1); if (ret < 0) { return -1; } ret = nl80211_join_ibss(nlmsg, sock, nl80211_family_id, ifindex, ibss_props, dofail); if (ret < 0) { return -1; } return 0; } static int read_tun(char* data, int size) { if (tunfd < 0) return -1; int rv = read(tunfd, data, size); if (rv < 0) { if (errno == EAGAIN || errno == EBADF || errno == EBADFD) return -1; exit(1); } return rv; } static long syz_emit_ethernet(volatile long a0, volatile long a1, volatile long a2) { if (tunfd < 0) return (uintptr_t)-1; uint32_t length = a0; char* data = (char*)a1; return write(tunfd, data, length); } #define SIZEOF_IO_URING_SQE 64 #define SIZEOF_IO_URING_CQE 16 #define SQ_HEAD_OFFSET 0 #define SQ_TAIL_OFFSET 64 #define SQ_RING_MASK_OFFSET 256 #define SQ_RING_ENTRIES_OFFSET 264 #define SQ_FLAGS_OFFSET 276 #define SQ_DROPPED_OFFSET 272 #define CQ_HEAD_OFFSET 128 #define CQ_TAIL_OFFSET 192 #define CQ_RING_MASK_OFFSET 260 #define CQ_RING_ENTRIES_OFFSET 268 #define CQ_RING_OVERFLOW_OFFSET 284 #define CQ_FLAGS_OFFSET 280 #define CQ_CQES_OFFSET 320 struct io_uring_cqe { uint64_t user_data; uint32_t res; uint32_t flags; }; static long syz_io_uring_complete(volatile long a0) { char* ring_ptr = (char*)a0; uint32_t cq_ring_mask = *(uint32_t*)(ring_ptr + CQ_RING_MASK_OFFSET); uint32_t* cq_head_ptr = (uint32_t*)(ring_ptr + CQ_HEAD_OFFSET); uint32_t cq_head = *cq_head_ptr & cq_ring_mask; uint32_t cq_head_next = *cq_head_ptr + 1; char* cqe_src = ring_ptr + CQ_CQES_OFFSET + cq_head * SIZEOF_IO_URING_CQE; struct io_uring_cqe cqe; memcpy(&cqe, cqe_src, sizeof(cqe)); __atomic_store_n(cq_head_ptr, cq_head_next, __ATOMIC_RELEASE); return (cqe.user_data == 0x12345 || cqe.user_data == 0x23456) ? (long)cqe.res : (long)-1; } struct io_sqring_offsets { uint32_t head; uint32_t tail; uint32_t ring_mask; uint32_t ring_entries; uint32_t flags; uint32_t dropped; uint32_t array; uint32_t resv1; uint64_t resv2; }; struct io_cqring_offsets { uint32_t head; uint32_t tail; uint32_t ring_mask; uint32_t ring_entries; uint32_t overflow; uint32_t cqes; uint64_t resv[2]; }; struct io_uring_params { uint32_t sq_entries; uint32_t cq_entries; uint32_t flags; uint32_t sq_thread_cpu; uint32_t sq_thread_idle; uint32_t features; uint32_t resv[4]; struct io_sqring_offsets sq_off; struct io_cqring_offsets cq_off; }; #define IORING_OFF_SQ_RING 0 #define IORING_OFF_SQES 0x10000000ULL #define IORING_SETUP_SQE128 (1U << 10) #define IORING_SETUP_CQE32 (1U << 11) static long syz_io_uring_setup(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { uint32_t entries = (uint32_t)a0; struct io_uring_params* setup_params = (struct io_uring_params*)a1; void** ring_ptr_out = (void**)a2; void** sqes_ptr_out = (void**)a3; setup_params->flags &= ~(IORING_SETUP_CQE32 | IORING_SETUP_SQE128); uint32_t fd_io_uring = syscall(__NR_io_uring_setup, entries, setup_params); uint32_t sq_ring_sz = setup_params->sq_off.array + setup_params->sq_entries * sizeof(uint32_t); uint32_t cq_ring_sz = setup_params->cq_off.cqes + setup_params->cq_entries * SIZEOF_IO_URING_CQE; uint32_t ring_sz = sq_ring_sz > cq_ring_sz ? sq_ring_sz : cq_ring_sz; *ring_ptr_out = mmap(0, ring_sz, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_POPULATE, fd_io_uring, IORING_OFF_SQ_RING); uint32_t sqes_sz = setup_params->sq_entries * SIZEOF_IO_URING_SQE; *sqes_ptr_out = mmap(0, sqes_sz, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_POPULATE, fd_io_uring, IORING_OFF_SQES); uint32_t* array = (uint32_t*)((uintptr_t)*ring_ptr_out + setup_params->sq_off.array); for (uint32_t index = 0; index < entries; index++) array[index] = index; return fd_io_uring; } static long syz_io_uring_submit(volatile long a0, volatile long a1, volatile long a2) { char* ring_ptr = (char*)a0; char* sqes_ptr = (char*)a1; char* sqe = (char*)a2; uint32_t sq_ring_mask = *(uint32_t*)(ring_ptr + SQ_RING_MASK_OFFSET); uint32_t* sq_tail_ptr = (uint32_t*)(ring_ptr + SQ_TAIL_OFFSET); uint32_t sq_tail = *sq_tail_ptr & sq_ring_mask; char* sqe_dest = sqes_ptr + sq_tail * SIZEOF_IO_URING_SQE; memcpy(sqe_dest, sqe, SIZEOF_IO_URING_SQE); uint32_t sq_tail_next = *sq_tail_ptr + 1; __atomic_store_n(sq_tail_ptr, sq_tail_next, __ATOMIC_RELEASE); return 0; } #define VHCI_HC_PORTS 8 #define VHCI_PORTS (VHCI_HC_PORTS * 2) static long syz_usbip_server_init(volatile long a0) { static int port_alloc[2]; int speed = (int)a0; bool usb3 = (speed == USB_SPEED_SUPER); int socket_pair[2]; if (socketpair(AF_UNIX, SOCK_STREAM, 0, socket_pair)) { return -1; } int client_fd = socket_pair[0]; int server_fd = socket_pair[1]; int available_port_num = __atomic_fetch_add(&port_alloc[usb3], 1, __ATOMIC_RELAXED); if (available_port_num > VHCI_HC_PORTS) { return -1; } int port_num = procid * VHCI_PORTS + usb3 * VHCI_HC_PORTS + available_port_num; char buffer[100]; sprintf(buffer, "%d %d %s %d", port_num, client_fd, "0", speed); write_file("/sys/devices/platform/vhci_hcd.0/attach", buffer); return server_fd; } #define BTF_MAGIC 0xeB9F struct btf_header { __u16 magic; __u8 version; __u8 flags; __u32 hdr_len; __u32 type_off; __u32 type_len; __u32 str_off; __u32 str_len; }; #define BTF_INFO_KIND(info) (((info) >> 24) & 0x0f) #define BTF_INFO_VLEN(info) ((info) & 0xffff) #define BTF_KIND_INT 1 #define BTF_KIND_ARRAY 3 #define BTF_KIND_STRUCT 4 #define BTF_KIND_UNION 5 #define BTF_KIND_ENUM 6 #define BTF_KIND_FUNC_PROTO 13 #define BTF_KIND_VAR 14 #define BTF_KIND_DATASEC 15 struct btf_type { __u32 name_off; __u32 info; union { __u32 size; __u32 type; }; }; struct btf_enum { __u32 name_off; __s32 val; }; struct btf_array { __u32 type; __u32 index_type; __u32 nelems; }; struct btf_member { __u32 name_off; __u32 type; __u32 offset; }; struct btf_param { __u32 name_off; __u32 type; }; struct btf_var { __u32 linkage; }; struct btf_var_secinfo { __u32 type; __u32 offset; __u32 size; }; #define VMLINUX_MAX_SUPPORT_SIZE (10 * 1024 * 1024) static char* read_btf_vmlinux() { static bool is_read = false; static char buf[VMLINUX_MAX_SUPPORT_SIZE]; if (is_read) return buf; int fd = open("/sys/kernel/btf/vmlinux", O_RDONLY); if (fd < 0) return NULL; unsigned long bytes_read = 0; for (;;) { ssize_t ret = read(fd, buf + bytes_read, VMLINUX_MAX_SUPPORT_SIZE - bytes_read); if (ret < 0 || bytes_read + ret == VMLINUX_MAX_SUPPORT_SIZE) return NULL; if (ret == 0) break; bytes_read += ret; } is_read = true; return buf; } static long syz_btf_id_by_name(volatile long a0) { char* target = (char*)a0; char* vmlinux = read_btf_vmlinux(); if (vmlinux == NULL) return -1; struct btf_header* btf_header = (struct btf_header*)vmlinux; if (btf_header->magic != BTF_MAGIC) return -1; char* btf_type_sec = vmlinux + btf_header->hdr_len + btf_header->type_off; char* btf_str_sec = vmlinux + btf_header->hdr_len + btf_header->str_off; unsigned int bytes_parsed = 0; long idx = 1; while (bytes_parsed < btf_header->type_len) { struct btf_type* btf_type = (struct btf_type*)(btf_type_sec + bytes_parsed); uint32_t kind = BTF_INFO_KIND(btf_type->info); uint32_t vlen = BTF_INFO_VLEN(btf_type->info); char* name = btf_str_sec + btf_type->name_off; if (strcmp(name, target) == 0) return idx; size_t skip; switch (kind) { case BTF_KIND_INT: skip = sizeof(uint32_t); break; case BTF_KIND_ENUM: skip = sizeof(struct btf_enum) * vlen; break; case BTF_KIND_ARRAY: skip = sizeof(struct btf_array); break; case BTF_KIND_STRUCT: case BTF_KIND_UNION: skip = sizeof(struct btf_member) * vlen; break; case BTF_KIND_FUNC_PROTO: skip = sizeof(struct btf_param) * vlen; break; case BTF_KIND_VAR: skip = sizeof(struct btf_var); break; case BTF_KIND_DATASEC: skip = sizeof(struct btf_var_secinfo) * vlen; break; default: skip = 0; } bytes_parsed += sizeof(struct btf_type) + skip; idx++; } return -1; } static long syz_memcpy_off(volatile long a0, volatile long a1, volatile long a2, volatile long a3, volatile long a4) { char* dest = (char*)a0; uint32_t dest_off = (uint32_t)a1; char* src = (char*)a2; uint32_t src_off = (uint32_t)a3; size_t n = (size_t)a4; return (long)memcpy(dest + dest_off, src + src_off, n); } static long syz_create_resource(volatile long val) { return val; } static void flush_tun() { char data[1000]; while (read_tun(&data[0], sizeof(data)) != -1) { } } struct ipv6hdr { __u8 priority : 4, version : 4; __u8 flow_lbl[3]; __be16 payload_len; __u8 nexthdr; __u8 hop_limit; struct in6_addr saddr; struct in6_addr daddr; }; struct tcp_resources { uint32_t seq; uint32_t ack; }; static long syz_extract_tcp_res(volatile long a0, volatile long a1, volatile long a2) { if (tunfd < 0) return (uintptr_t)-1; char data[1000]; int rv = read_tun(&data[0], sizeof(data)); if (rv == -1) return (uintptr_t)-1; size_t length = rv; if (length < sizeof(struct ethhdr)) return (uintptr_t)-1; struct ethhdr* ethhdr = (struct ethhdr*)&data[0]; struct tcphdr* tcphdr = 0; if (ethhdr->h_proto == htons(ETH_P_IP)) { if (length < sizeof(struct ethhdr) + sizeof(struct iphdr)) return (uintptr_t)-1; struct iphdr* iphdr = (struct iphdr*)&data[sizeof(struct ethhdr)]; if (iphdr->protocol != IPPROTO_TCP) return (uintptr_t)-1; if (length < sizeof(struct ethhdr) + iphdr->ihl * 4 + sizeof(struct tcphdr)) return (uintptr_t)-1; tcphdr = (struct tcphdr*)&data[sizeof(struct ethhdr) + iphdr->ihl * 4]; } else { if (length < sizeof(struct ethhdr) + sizeof(struct ipv6hdr)) return (uintptr_t)-1; struct ipv6hdr* ipv6hdr = (struct ipv6hdr*)&data[sizeof(struct ethhdr)]; if (ipv6hdr->nexthdr != IPPROTO_TCP) return (uintptr_t)-1; if (length < sizeof(struct ethhdr) + sizeof(struct ipv6hdr) + sizeof(struct tcphdr)) return (uintptr_t)-1; tcphdr = (struct tcphdr*)&data[sizeof(struct ethhdr) + sizeof(struct ipv6hdr)]; } struct tcp_resources* res = (struct tcp_resources*)a0; res->seq = htonl((ntohl(tcphdr->seq) + (uint32_t)a1)); res->ack = htonl((ntohl(tcphdr->ack_seq) + (uint32_t)a2)); return 0; } #define MAX_FDS 30 #define USB_MAX_IFACE_NUM 4 #define USB_MAX_EP_NUM 32 #define USB_MAX_FDS 6 struct usb_endpoint_index { struct usb_endpoint_descriptor desc; int handle; }; struct usb_iface_index { struct usb_interface_descriptor* iface; uint8_t bInterfaceNumber; uint8_t bAlternateSetting; uint8_t bInterfaceClass; struct usb_endpoint_index eps[USB_MAX_EP_NUM]; int eps_num; }; struct usb_device_index { struct usb_device_descriptor* dev; struct usb_config_descriptor* config; uint8_t bDeviceClass; uint8_t bMaxPower; int config_length; struct usb_iface_index ifaces[USB_MAX_IFACE_NUM]; int ifaces_num; int iface_cur; }; struct usb_info { int fd; struct usb_device_index index; }; static struct usb_info usb_devices[USB_MAX_FDS]; static struct usb_device_index* lookup_usb_index(int fd) { for (int i = 0; i < USB_MAX_FDS; i++) { if (__atomic_load_n(&usb_devices[i].fd, __ATOMIC_ACQUIRE) == fd) return &usb_devices[i].index; } return NULL; } static int usb_devices_num; static bool parse_usb_descriptor(const char* buffer, size_t length, struct usb_device_index* index) { if (length < sizeof(*index->dev) + sizeof(*index->config)) return false; memset(index, 0, sizeof(*index)); index->dev = (struct usb_device_descriptor*)buffer; index->config = (struct usb_config_descriptor*)(buffer + sizeof(*index->dev)); index->bDeviceClass = index->dev->bDeviceClass; index->bMaxPower = index->config->bMaxPower; index->config_length = length - sizeof(*index->dev); index->iface_cur = -1; size_t offset = 0; while (true) { if (offset + 1 >= length) break; uint8_t desc_length = buffer[offset]; uint8_t desc_type = buffer[offset + 1]; if (desc_length <= 2) break; if (offset + desc_length > length) break; if (desc_type == USB_DT_INTERFACE && index->ifaces_num < USB_MAX_IFACE_NUM) { struct usb_interface_descriptor* iface = (struct usb_interface_descriptor*)(buffer + offset); index->ifaces[index->ifaces_num].iface = iface; index->ifaces[index->ifaces_num].bInterfaceNumber = iface->bInterfaceNumber; index->ifaces[index->ifaces_num].bAlternateSetting = iface->bAlternateSetting; index->ifaces[index->ifaces_num].bInterfaceClass = iface->bInterfaceClass; index->ifaces_num++; } if (desc_type == USB_DT_ENDPOINT && index->ifaces_num > 0) { struct usb_iface_index* iface = &index->ifaces[index->ifaces_num - 1]; if (iface->eps_num < USB_MAX_EP_NUM) { memcpy(&iface->eps[iface->eps_num].desc, buffer + offset, sizeof(iface->eps[iface->eps_num].desc)); iface->eps_num++; } } offset += desc_length; } return true; } static struct usb_device_index* add_usb_index(int fd, const char* dev, size_t dev_len) { int i = __atomic_fetch_add(&usb_devices_num, 1, __ATOMIC_RELAXED); if (i >= USB_MAX_FDS) return NULL; if (!parse_usb_descriptor(dev, dev_len, &usb_devices[i].index)) return NULL; __atomic_store_n(&usb_devices[i].fd, fd, __ATOMIC_RELEASE); return &usb_devices[i].index; } struct vusb_connect_string_descriptor { uint32_t len; char* str; } __attribute__((packed)); struct vusb_connect_descriptors { uint32_t qual_len; char* qual; uint32_t bos_len; char* bos; uint32_t strs_len; struct vusb_connect_string_descriptor strs[0]; } __attribute__((packed)); static const char default_string[] = { 8, USB_DT_STRING, 's', 0, 'y', 0, 'z', 0 }; static const char default_lang_id[] = { 4, USB_DT_STRING, 0x09, 0x04 }; static bool lookup_connect_response_in(int fd, const struct vusb_connect_descriptors* descs, const struct usb_ctrlrequest* ctrl, struct usb_qualifier_descriptor* qual, char** response_data, uint32_t* response_length) { struct usb_device_index* index = lookup_usb_index(fd); uint8_t str_idx; if (!index) return false; switch (ctrl->bRequestType & USB_TYPE_MASK) { case USB_TYPE_STANDARD: switch (ctrl->bRequest) { case USB_REQ_GET_DESCRIPTOR: switch (ctrl->wValue >> 8) { case USB_DT_DEVICE: *response_data = (char*)index->dev; *response_length = sizeof(*index->dev); return true; case USB_DT_CONFIG: *response_data = (char*)index->config; *response_length = index->config_length; return true; case USB_DT_STRING: str_idx = (uint8_t)ctrl->wValue; if (descs && str_idx < descs->strs_len) { *response_data = descs->strs[str_idx].str; *response_length = descs->strs[str_idx].len; return true; } if (str_idx == 0) { *response_data = (char*)&default_lang_id[0]; *response_length = default_lang_id[0]; return true; } *response_data = (char*)&default_string[0]; *response_length = default_string[0]; return true; case USB_DT_BOS: *response_data = descs->bos; *response_length = descs->bos_len; return true; case USB_DT_DEVICE_QUALIFIER: if (!descs->qual) { qual->bLength = sizeof(*qual); qual->bDescriptorType = USB_DT_DEVICE_QUALIFIER; qual->bcdUSB = index->dev->bcdUSB; qual->bDeviceClass = index->dev->bDeviceClass; qual->bDeviceSubClass = index->dev->bDeviceSubClass; qual->bDeviceProtocol = index->dev->bDeviceProtocol; qual->bMaxPacketSize0 = index->dev->bMaxPacketSize0; qual->bNumConfigurations = index->dev->bNumConfigurations; qual->bRESERVED = 0; *response_data = (char*)qual; *response_length = sizeof(*qual); return true; } *response_data = descs->qual; *response_length = descs->qual_len; return true; default: break; } break; default: break; } break; default: break; } return false; } typedef bool (*lookup_connect_out_response_t)(int fd, const struct vusb_connect_descriptors* descs, const struct usb_ctrlrequest* ctrl, bool* done); static bool lookup_connect_response_out_generic(int fd, const struct vusb_connect_descriptors* descs, const struct usb_ctrlrequest* ctrl, bool* done) { switch (ctrl->bRequestType & USB_TYPE_MASK) { case USB_TYPE_STANDARD: switch (ctrl->bRequest) { case USB_REQ_SET_CONFIGURATION: *done = true; return true; default: break; } break; } return false; } #define ATH9K_FIRMWARE_DOWNLOAD 0x30 #define ATH9K_FIRMWARE_DOWNLOAD_COMP 0x31 static bool lookup_connect_response_out_ath9k(int fd, const struct vusb_connect_descriptors* descs, const struct usb_ctrlrequest* ctrl, bool* done) { switch (ctrl->bRequestType & USB_TYPE_MASK) { case USB_TYPE_STANDARD: switch (ctrl->bRequest) { case USB_REQ_SET_CONFIGURATION: return true; default: break; } break; case USB_TYPE_VENDOR: switch (ctrl->bRequest) { case ATH9K_FIRMWARE_DOWNLOAD: return true; case ATH9K_FIRMWARE_DOWNLOAD_COMP: *done = true; return true; default: break; } break; } return false; } struct vusb_descriptor { uint8_t req_type; uint8_t desc_type; uint32_t len; char data[0]; } __attribute__((packed)); struct vusb_descriptors { uint32_t len; struct vusb_descriptor* generic; struct vusb_descriptor* descs[0]; } __attribute__((packed)); struct vusb_response { uint8_t type; uint8_t req; uint32_t len; char data[0]; } __attribute__((packed)); struct vusb_responses { uint32_t len; struct vusb_response* generic; struct vusb_response* resps[0]; } __attribute__((packed)); static bool lookup_control_response(const struct vusb_descriptors* descs, const struct vusb_responses* resps, struct usb_ctrlrequest* ctrl, char** response_data, uint32_t* response_length) { int descs_num = 0; int resps_num = 0; if (descs) descs_num = (descs->len - offsetof(struct vusb_descriptors, descs)) / sizeof(descs->descs[0]); if (resps) resps_num = (resps->len - offsetof(struct vusb_responses, resps)) / sizeof(resps->resps[0]); uint8_t req = ctrl->bRequest; uint8_t req_type = ctrl->bRequestType & USB_TYPE_MASK; uint8_t desc_type = ctrl->wValue >> 8; if (req == USB_REQ_GET_DESCRIPTOR) { int i; for (i = 0; i < descs_num; i++) { struct vusb_descriptor* desc = descs->descs[i]; if (!desc) continue; if (desc->req_type == req_type && desc->desc_type == desc_type) { *response_length = desc->len; if (*response_length != 0) *response_data = &desc->data[0]; else *response_data = NULL; return true; } } if (descs && descs->generic) { *response_data = &descs->generic->data[0]; *response_length = descs->generic->len; return true; } } else { int i; for (i = 0; i < resps_num; i++) { struct vusb_response* resp = resps->resps[i]; if (!resp) continue; if (resp->type == req_type && resp->req == req) { *response_length = resp->len; if (*response_length != 0) *response_data = &resp->data[0]; else *response_data = NULL; return true; } } if (resps && resps->generic) { *response_data = &resps->generic->data[0]; *response_length = resps->generic->len; return true; } } return false; } #define UDC_NAME_LENGTH_MAX 128 struct usb_raw_init { __u8 driver_name[UDC_NAME_LENGTH_MAX]; __u8 device_name[UDC_NAME_LENGTH_MAX]; __u8 speed; }; enum usb_raw_event_type { USB_RAW_EVENT_INVALID = 0, USB_RAW_EVENT_CONNECT = 1, USB_RAW_EVENT_CONTROL = 2, }; struct usb_raw_event { __u32 type; __u32 length; __u8 data[0]; }; struct usb_raw_ep_io { __u16 ep; __u16 flags; __u32 length; __u8 data[0]; }; #define USB_RAW_EPS_NUM_MAX 30 #define USB_RAW_EP_NAME_MAX 16 #define USB_RAW_EP_ADDR_ANY 0xff struct usb_raw_ep_caps { __u32 type_control : 1; __u32 type_iso : 1; __u32 type_bulk : 1; __u32 type_int : 1; __u32 dir_in : 1; __u32 dir_out : 1; }; struct usb_raw_ep_limits { __u16 maxpacket_limit; __u16 max_streams; __u32 reserved; }; struct usb_raw_ep_info { __u8 name[USB_RAW_EP_NAME_MAX]; __u32 addr; struct usb_raw_ep_caps caps; struct usb_raw_ep_limits limits; }; struct usb_raw_eps_info { struct usb_raw_ep_info eps[USB_RAW_EPS_NUM_MAX]; }; #define USB_RAW_IOCTL_INIT _IOW('U', 0, struct usb_raw_init) #define USB_RAW_IOCTL_RUN _IO('U', 1) #define USB_RAW_IOCTL_EVENT_FETCH _IOR('U', 2, struct usb_raw_event) #define USB_RAW_IOCTL_EP0_WRITE _IOW('U', 3, struct usb_raw_ep_io) #define USB_RAW_IOCTL_EP0_READ _IOWR('U', 4, struct usb_raw_ep_io) #define USB_RAW_IOCTL_EP_ENABLE _IOW('U', 5, struct usb_endpoint_descriptor) #define USB_RAW_IOCTL_EP_DISABLE _IOW('U', 6, __u32) #define USB_RAW_IOCTL_EP_WRITE _IOW('U', 7, struct usb_raw_ep_io) #define USB_RAW_IOCTL_EP_READ _IOWR('U', 8, struct usb_raw_ep_io) #define USB_RAW_IOCTL_CONFIGURE _IO('U', 9) #define USB_RAW_IOCTL_VBUS_DRAW _IOW('U', 10, __u32) #define USB_RAW_IOCTL_EPS_INFO _IOR('U', 11, struct usb_raw_eps_info) #define USB_RAW_IOCTL_EP0_STALL _IO('U', 12) #define USB_RAW_IOCTL_EP_SET_HALT _IOW('U', 13, __u32) #define USB_RAW_IOCTL_EP_CLEAR_HALT _IOW('U', 14, __u32) #define USB_RAW_IOCTL_EP_SET_WEDGE _IOW('U', 15, __u32) static int usb_raw_open() { return open("/dev/raw-gadget", O_RDWR); } static int usb_raw_init(int fd, uint32_t speed, const char* driver, const char* device) { struct usb_raw_init arg; strncpy((char*)&arg.driver_name[0], driver, sizeof(arg.driver_name)); strncpy((char*)&arg.device_name[0], device, sizeof(arg.device_name)); arg.speed = speed; return ioctl(fd, USB_RAW_IOCTL_INIT, &arg); } static int usb_raw_run(int fd) { return ioctl(fd, USB_RAW_IOCTL_RUN, 0); } static int usb_raw_ep_write(int fd, struct usb_raw_ep_io* io) { return ioctl(fd, USB_RAW_IOCTL_EP_WRITE, io); } static int usb_raw_ep_read(int fd, struct usb_raw_ep_io* io) { return ioctl(fd, USB_RAW_IOCTL_EP_READ, io); } static int usb_raw_configure(int fd) { return ioctl(fd, USB_RAW_IOCTL_CONFIGURE, 0); } static int usb_raw_vbus_draw(int fd, uint32_t power) { return ioctl(fd, USB_RAW_IOCTL_VBUS_DRAW, power); } static int usb_raw_ep0_write(int fd, struct usb_raw_ep_io* io) { return ioctl(fd, USB_RAW_IOCTL_EP0_WRITE, io); } static int usb_raw_ep0_read(int fd, struct usb_raw_ep_io* io) { return ioctl(fd, USB_RAW_IOCTL_EP0_READ, io); } static int usb_raw_event_fetch(int fd, struct usb_raw_event* event) { return ioctl(fd, USB_RAW_IOCTL_EVENT_FETCH, event); } static int usb_raw_ep_enable(int fd, struct usb_endpoint_descriptor* desc) { return ioctl(fd, USB_RAW_IOCTL_EP_ENABLE, desc); } static int usb_raw_ep_disable(int fd, int ep) { return ioctl(fd, USB_RAW_IOCTL_EP_DISABLE, ep); } static int usb_raw_ep0_stall(int fd) { return ioctl(fd, USB_RAW_IOCTL_EP0_STALL, 0); } static int lookup_interface(int fd, uint8_t bInterfaceNumber, uint8_t bAlternateSetting) { struct usb_device_index* index = lookup_usb_index(fd); if (!index) return -1; for (int i = 0; i < index->ifaces_num; i++) { if (index->ifaces[i].bInterfaceNumber == bInterfaceNumber && index->ifaces[i].bAlternateSetting == bAlternateSetting) return i; } return -1; } static int lookup_endpoint(int fd, uint8_t bEndpointAddress) { struct usb_device_index* index = lookup_usb_index(fd); if (!index) return -1; if (index->iface_cur < 0) return -1; for (int ep = 0; ep < index->ifaces[index->iface_cur].eps_num; ep++) if (index->ifaces[index->iface_cur].eps[ep].desc.bEndpointAddress == bEndpointAddress) return index->ifaces[index->iface_cur].eps[ep].handle; return -1; } #define USB_MAX_PACKET_SIZE 4096 struct usb_raw_control_event { struct usb_raw_event inner; struct usb_ctrlrequest ctrl; char data[USB_MAX_PACKET_SIZE]; }; struct usb_raw_ep_io_data { struct usb_raw_ep_io inner; char data[USB_MAX_PACKET_SIZE]; }; static void set_interface(int fd, int n) { struct usb_device_index* index = lookup_usb_index(fd); if (!index) return; if (index->iface_cur >= 0 && index->iface_cur < index->ifaces_num) { for (int ep = 0; ep < index->ifaces[index->iface_cur].eps_num; ep++) { int rv = usb_raw_ep_disable(fd, index->ifaces[index->iface_cur].eps[ep].handle); if (rv < 0) { } else { } } } if (n >= 0 && n < index->ifaces_num) { for (int ep = 0; ep < index->ifaces[n].eps_num; ep++) { int rv = usb_raw_ep_enable(fd, &index->ifaces[n].eps[ep].desc); if (rv < 0) { } else { index->ifaces[n].eps[ep].handle = rv; } } index->iface_cur = n; } } static int configure_device(int fd) { struct usb_device_index* index = lookup_usb_index(fd); if (!index) return -1; int rv = usb_raw_vbus_draw(fd, index->bMaxPower); if (rv < 0) { return rv; } rv = usb_raw_configure(fd); if (rv < 0) { return rv; } set_interface(fd, 0); return 0; } static volatile long syz_usb_connect_impl(uint64_t speed, uint64_t dev_len, const char* dev, const struct vusb_connect_descriptors* descs, lookup_connect_out_response_t lookup_connect_response_out) { if (!dev) { return -1; } int fd = usb_raw_open(); if (fd < 0) { return fd; } if (fd >= MAX_FDS) { close(fd); return -1; } struct usb_device_index* index = add_usb_index(fd, dev, dev_len); if (!index) { return -1; } char device[32]; sprintf(&device[0], "dummy_udc.%llu", procid); int rv = usb_raw_init(fd, speed, "dummy_udc", &device[0]); if (rv < 0) { return rv; } rv = usb_raw_run(fd); if (rv < 0) { return rv; } bool done = false; while (!done) { struct usb_raw_control_event event; event.inner.type = 0; event.inner.length = sizeof(event.ctrl); rv = usb_raw_event_fetch(fd, (struct usb_raw_event*)&event); if (rv < 0) { return rv; } if (event.inner.type != USB_RAW_EVENT_CONTROL) continue; char* response_data = NULL; uint32_t response_length = 0; struct usb_qualifier_descriptor qual; if (event.ctrl.bRequestType & USB_DIR_IN) { if (!lookup_connect_response_in(fd, descs, &event.ctrl, &qual, &response_data, &response_length)) { usb_raw_ep0_stall(fd); continue; } } else { if (!lookup_connect_response_out(fd, descs, &event.ctrl, &done)) { usb_raw_ep0_stall(fd); continue; } response_data = NULL; response_length = event.ctrl.wLength; } if ((event.ctrl.bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD && event.ctrl.bRequest == USB_REQ_SET_CONFIGURATION) { rv = configure_device(fd); if (rv < 0) { return rv; } } struct usb_raw_ep_io_data response; response.inner.ep = 0; response.inner.flags = 0; if (response_length > sizeof(response.data)) response_length = 0; if (event.ctrl.wLength < response_length) response_length = event.ctrl.wLength; response.inner.length = response_length; if (response_data) memcpy(&response.data[0], response_data, response_length); else memset(&response.data[0], 0, response_length); if (event.ctrl.bRequestType & USB_DIR_IN) { rv = usb_raw_ep0_write(fd, (struct usb_raw_ep_io*)&response); } else { rv = usb_raw_ep0_read(fd, (struct usb_raw_ep_io*)&response); } if (rv < 0) { return rv; } } sleep_ms(200); return fd; } static volatile long syz_usb_connect(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { uint64_t speed = a0; uint64_t dev_len = a1; const char* dev = (const char*)a2; const struct vusb_connect_descriptors* descs = (const struct vusb_connect_descriptors*)a3; return syz_usb_connect_impl(speed, dev_len, dev, descs, &lookup_connect_response_out_generic); } static volatile long syz_usb_connect_ath9k(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { uint64_t speed = a0; uint64_t dev_len = a1; const char* dev = (const char*)a2; const struct vusb_connect_descriptors* descs = (const struct vusb_connect_descriptors*)a3; return syz_usb_connect_impl(speed, dev_len, dev, descs, &lookup_connect_response_out_ath9k); } static volatile long syz_usb_control_io(volatile long a0, volatile long a1, volatile long a2) { int fd = a0; const struct vusb_descriptors* descs = (const struct vusb_descriptors*)a1; const struct vusb_responses* resps = (const struct vusb_responses*)a2; struct usb_raw_control_event event; event.inner.type = 0; event.inner.length = USB_MAX_PACKET_SIZE; int rv = usb_raw_event_fetch(fd, (struct usb_raw_event*)&event); if (rv < 0) { return rv; } if (event.inner.type != USB_RAW_EVENT_CONTROL) { return -1; } char* response_data = NULL; uint32_t response_length = 0; if ((event.ctrl.bRequestType & USB_DIR_IN) && event.ctrl.wLength) { if (!lookup_control_response(descs, resps, &event.ctrl, &response_data, &response_length)) { usb_raw_ep0_stall(fd); return -1; } } else { if ((event.ctrl.bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD || event.ctrl.bRequest == USB_REQ_SET_INTERFACE) { int iface_num = event.ctrl.wIndex; int alt_set = event.ctrl.wValue; int iface_index = lookup_interface(fd, iface_num, alt_set); if (iface_index < 0) { } else { set_interface(fd, iface_index); } } response_length = event.ctrl.wLength; } struct usb_raw_ep_io_data response; response.inner.ep = 0; response.inner.flags = 0; if (response_length > sizeof(response.data)) response_length = 0; if (event.ctrl.wLength < response_length) response_length = event.ctrl.wLength; if ((event.ctrl.bRequestType & USB_DIR_IN) && !event.ctrl.wLength) { response_length = USB_MAX_PACKET_SIZE; } response.inner.length = response_length; if (response_data) memcpy(&response.data[0], response_data, response_length); else memset(&response.data[0], 0, response_length); if ((event.ctrl.bRequestType & USB_DIR_IN) && event.ctrl.wLength) { rv = usb_raw_ep0_write(fd, (struct usb_raw_ep_io*)&response); } else { rv = usb_raw_ep0_read(fd, (struct usb_raw_ep_io*)&response); } if (rv < 0) { return rv; } sleep_ms(200); return 0; } static volatile long syz_usb_ep_write(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { int fd = a0; uint8_t ep = a1; uint32_t len = a2; char* data = (char*)a3; int ep_handle = lookup_endpoint(fd, ep); if (ep_handle < 0) { return -1; } struct usb_raw_ep_io_data io_data; io_data.inner.ep = ep_handle; io_data.inner.flags = 0; if (len > sizeof(io_data.data)) len = sizeof(io_data.data); io_data.inner.length = len; memcpy(&io_data.data[0], data, len); int rv = usb_raw_ep_write(fd, (struct usb_raw_ep_io*)&io_data); if (rv < 0) { return rv; } sleep_ms(200); return 0; } static volatile long syz_usb_ep_read(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { int fd = a0; uint8_t ep = a1; uint32_t len = a2; char* data = (char*)a3; int ep_handle = lookup_endpoint(fd, ep); if (ep_handle < 0) { return -1; } struct usb_raw_ep_io_data io_data; io_data.inner.ep = ep_handle; io_data.inner.flags = 0; if (len > sizeof(io_data.data)) len = sizeof(io_data.data); io_data.inner.length = len; int rv = usb_raw_ep_read(fd, (struct usb_raw_ep_io*)&io_data); if (rv < 0) { return rv; } memcpy(&data[0], &io_data.data[0], io_data.inner.length); sleep_ms(200); return 0; } static volatile long syz_usb_disconnect(volatile long a0) { int fd = a0; int rv = close(fd); sleep_ms(200); return rv; } static long syz_open_dev(volatile long a0, volatile long a1, volatile long a2) { if (a0 == 0xc || a0 == 0xb) { char buf[128]; sprintf(buf, "/dev/%s/%d:%d", a0 == 0xc ? "char" : "block", (uint8_t)a1, (uint8_t)a2); return open(buf, O_RDWR, 0); } else { unsigned long nb = a1; char buf[1024]; char* hash; strncpy(buf, (char*)a0, sizeof(buf) - 1); buf[sizeof(buf) - 1] = 0; while ((hash = strchr(buf, '#'))) { *hash = '0' + (char)(nb % 10); nb /= 10; } return open(buf, a2 & ~O_CREAT, 0); } } static long syz_open_procfs(volatile long a0, volatile long a1) { char buf[128]; memset(buf, 0, sizeof(buf)); if (a0 == 0) { snprintf(buf, sizeof(buf), "/proc/self/%s", (char*)a1); } else if (a0 == -1) { snprintf(buf, sizeof(buf), "/proc/thread-self/%s", (char*)a1); } else { snprintf(buf, sizeof(buf), "/proc/self/task/%d/%s", (int)a0, (char*)a1); } int fd = open(buf, O_RDWR); if (fd == -1) fd = open(buf, O_RDONLY); return fd; } static long syz_open_pts(volatile long a0, volatile long a1) { int ptyno = 0; if (ioctl(a0, TIOCGPTN, &ptyno)) return -1; char buf[128]; sprintf(buf, "/dev/pts/%d", ptyno); return open(buf, a1, 0); } static long syz_init_net_socket(volatile long domain, volatile long type, volatile long proto) { int netns = open("/proc/self/ns/net", O_RDONLY); if (netns == -1) return netns; if (setns(kInitNetNsFd, 0)) return -1; int sock = syscall(__NR_socket, domain, type, proto); int err = errno; if (setns(netns, 0)) { exit(1); } close(netns); errno = err; return sock; } static long syz_socket_connect_nvme_tcp() { struct sockaddr_in nvme_local_address; int netns = open("/proc/self/ns/net", O_RDONLY); if (netns == -1) return netns; if (setns(kInitNetNsFd, 0)) return -1; int sock = syscall(__NR_socket, AF_INET, SOCK_STREAM, 0x0); int err = errno; if (setns(netns, 0)) { exit(1); } close(netns); errno = err; nvme_local_address.sin_family = AF_INET; nvme_local_address.sin_port = htobe16(4420); nvme_local_address.sin_addr.s_addr = htobe32(0x7f000001); err = syscall(__NR_connect, sock, &nvme_local_address, sizeof(nvme_local_address)); if (err != 0) { close(sock); return -1; } return sock; } static long syz_genetlink_get_family_id(volatile long name, volatile long sock_arg) { int fd = sock_arg; if (fd < 0) { fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC); if (fd == -1) { return -1; } } struct nlmsg nlmsg_tmp; int ret = netlink_query_family_id(&nlmsg_tmp, fd, (char*)name, false); if ((int)sock_arg < 0) close(fd); if (ret < 0) { return -1; } return ret; } //% This code is derived from puff.{c,h}, found in the zlib development. The //% original files come with the following copyright notice: //% Copyright (C) 2002-2013 Mark Adler, all rights reserved //% version 2.3, 21 Jan 2013 //% This software is provided 'as-is', without any express or implied //% warranty. In no event will the author be held liable for any damages //% arising from the use of this software. //% Permission is granted to anyone to use this software for any purpose, //% including commercial applications, and to alter it and redistribute it //% freely, subject to the following restrictions: //% 1. The origin of this software must not be misrepresented; you must not //% claim that you wrote the original software. If you use this software //% in a product, an acknowledgment in the product documentation would be //% appreciated but is not required. //% 2. Altered source versions must be plainly marked as such, and must not be //% misrepresented as being the original software. //% 3. This notice may not be removed or altered from any source distribution. //% Mark Adler madler@alumni.caltech.edu //% BEGIN CODE DERIVED FROM puff.{c,h} #define MAXBITS 15 #define MAXLCODES 286 #define MAXDCODES 30 #define MAXCODES (MAXLCODES + MAXDCODES) #define FIXLCODES 288 struct puff_state { unsigned char* out; unsigned long outlen; unsigned long outcnt; const unsigned char* in; unsigned long inlen; unsigned long incnt; int bitbuf; int bitcnt; jmp_buf env; }; static int puff_bits(struct puff_state* s, int need) { long val = s->bitbuf; while (s->bitcnt < need) { if (s->incnt == s->inlen) longjmp(s->env, 1); val |= (long)(s->in[s->incnt++]) << s->bitcnt; s->bitcnt += 8; } s->bitbuf = (int)(val >> need); s->bitcnt -= need; return (int)(val & ((1L << need) - 1)); } static int puff_stored(struct puff_state* s) { s->bitbuf = 0; s->bitcnt = 0; if (s->incnt + 4 > s->inlen) return 2; unsigned len = s->in[s->incnt++]; len |= s->in[s->incnt++] << 8; if (s->in[s->incnt++] != (~len & 0xff) || s->in[s->incnt++] != ((~len >> 8) & 0xff)) return -2; if (s->incnt + len > s->inlen) return 2; if (s->outcnt + len > s->outlen) return 1; for (; len--; s->outcnt++, s->incnt++) { if (s->in[s->incnt]) s->out[s->outcnt] = s->in[s->incnt]; } return 0; } struct puff_huffman { short* count; short* symbol; }; static int puff_decode(struct puff_state* s, const struct puff_huffman* h) { int first = 0; int index = 0; int bitbuf = s->bitbuf; int left = s->bitcnt; int code = first = index = 0; int len = 1; short* next = h->count + 1; while (1) { while (left--) { code |= bitbuf & 1; bitbuf >>= 1; int count = *next++; if (code - count < first) { s->bitbuf = bitbuf; s->bitcnt = (s->bitcnt - len) & 7; return h->symbol[index + (code - first)]; } index += count; first += count; first <<= 1; code <<= 1; len++; } left = (MAXBITS + 1) - len; if (left == 0) break; if (s->incnt == s->inlen) longjmp(s->env, 1); bitbuf = s->in[s->incnt++]; if (left > 8) left = 8; } return -10; } static int puff_construct(struct puff_huffman* h, const short* length, int n) { int len; for (len = 0; len <= MAXBITS; len++) h->count[len] = 0; int symbol; for (symbol = 0; symbol < n; symbol++) (h->count[length[symbol]])++; if (h->count[0] == n) return 0; int left = 1; for (len = 1; len <= MAXBITS; len++) { left <<= 1; left -= h->count[len]; if (left < 0) return left; } short offs[MAXBITS + 1]; offs[1] = 0; for (len = 1; len < MAXBITS; len++) offs[len + 1] = offs[len] + h->count[len]; for (symbol = 0; symbol < n; symbol++) if (length[symbol] != 0) h->symbol[offs[length[symbol]]++] = symbol; return left; } static int puff_codes(struct puff_state* s, const struct puff_huffman* lencode, const struct puff_huffman* distcode) { static const short lens[29] = { 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31, 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258}; static const short lext[29] = { 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0}; static const short dists[30] = { 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193, 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145, 8193, 12289, 16385, 24577}; static const short dext[30] = { 0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13}; int symbol; do { symbol = puff_decode(s, lencode); if (symbol < 0) return symbol; if (symbol < 256) { if (s->outcnt == s->outlen) return 1; if (symbol) s->out[s->outcnt] = symbol; s->outcnt++; } else if (symbol > 256) { symbol -= 257; if (symbol >= 29) return -10; int len = lens[symbol] + puff_bits(s, lext[symbol]); symbol = puff_decode(s, distcode); if (symbol < 0) return symbol; unsigned dist = dists[symbol] + puff_bits(s, dext[symbol]); if (dist > s->outcnt) return -11; if (s->outcnt + len > s->outlen) return 1; while (len--) { if (dist <= s->outcnt && s->out[s->outcnt - dist]) s->out[s->outcnt] = s->out[s->outcnt - dist]; s->outcnt++; } } } while (symbol != 256); return 0; } static int puff_fixed(struct puff_state* s) { static int virgin = 1; static short lencnt[MAXBITS + 1], lensym[FIXLCODES]; static short distcnt[MAXBITS + 1], distsym[MAXDCODES]; static struct puff_huffman lencode, distcode; if (virgin) { lencode.count = lencnt; lencode.symbol = lensym; distcode.count = distcnt; distcode.symbol = distsym; short lengths[FIXLCODES]; int symbol; for (symbol = 0; symbol < 144; symbol++) lengths[symbol] = 8; for (; symbol < 256; symbol++) lengths[symbol] = 9; for (; symbol < 280; symbol++) lengths[symbol] = 7; for (; symbol < FIXLCODES; symbol++) lengths[symbol] = 8; puff_construct(&lencode, lengths, FIXLCODES); for (symbol = 0; symbol < MAXDCODES; symbol++) lengths[symbol] = 5; puff_construct(&distcode, lengths, MAXDCODES); virgin = 0; } return puff_codes(s, &lencode, &distcode); } static int puff_dynamic(struct puff_state* s) { static const short order[19] = {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15}; int nlen = puff_bits(s, 5) + 257; int ndist = puff_bits(s, 5) + 1; int ncode = puff_bits(s, 4) + 4; if (nlen > MAXLCODES || ndist > MAXDCODES) return -3; short lengths[MAXCODES]; int index; for (index = 0; index < ncode; index++) lengths[order[index]] = puff_bits(s, 3); for (; index < 19; index++) lengths[order[index]] = 0; short lencnt[MAXBITS + 1], lensym[MAXLCODES]; struct puff_huffman lencode = {lencnt, lensym}; int err = puff_construct(&lencode, lengths, 19); if (err != 0) return -4; index = 0; while (index < nlen + ndist) { int symbol; int len; symbol = puff_decode(s, &lencode); if (symbol < 0) return symbol; if (symbol < 16) lengths[index++] = symbol; else { len = 0; if (symbol == 16) { if (index == 0) return -5; len = lengths[index - 1]; symbol = 3 + puff_bits(s, 2); } else if (symbol == 17) symbol = 3 + puff_bits(s, 3); else symbol = 11 + puff_bits(s, 7); if (index + symbol > nlen + ndist) return -6; while (symbol--) lengths[index++] = len; } } if (lengths[256] == 0) return -9; err = puff_construct(&lencode, lengths, nlen); if (err && (err < 0 || nlen != lencode.count[0] + lencode.count[1])) return -7; short distcnt[MAXBITS + 1], distsym[MAXDCODES]; struct puff_huffman distcode = {distcnt, distsym}; err = puff_construct(&distcode, lengths + nlen, ndist); if (err && (err < 0 || ndist != distcode.count[0] + distcode.count[1])) return -8; return puff_codes(s, &lencode, &distcode); } static int puff( unsigned char* dest, unsigned long* destlen, const unsigned char* source, unsigned long sourcelen) { struct puff_state s = { .out = dest, .outlen = *destlen, .outcnt = 0, .in = source, .inlen = sourcelen, .incnt = 0, .bitbuf = 0, .bitcnt = 0, }; int err; if (setjmp(s.env) != 0) err = 2; else { int last; do { last = puff_bits(&s, 1); int type = puff_bits(&s, 2); err = type == 0 ? puff_stored(&s) : (type == 1 ? puff_fixed(&s) : (type == 2 ? puff_dynamic(&s) : -1)); if (err != 0) break; } while (!last); } *destlen = s.outcnt; return err; } //% END CODE DERIVED FROM puff.{c,h} #define ZLIB_HEADER_WIDTH 2 static int puff_zlib_to_file(const unsigned char* source, unsigned long sourcelen, int dest_fd) { if (sourcelen < ZLIB_HEADER_WIDTH) return 0; source += ZLIB_HEADER_WIDTH; sourcelen -= ZLIB_HEADER_WIDTH; const unsigned long max_destlen = 132 << 20; void* ret = mmap(0, max_destlen, PROT_WRITE | PROT_READ, MAP_PRIVATE | MAP_ANON, -1, 0); if (ret == MAP_FAILED) return -1; unsigned char* dest = (unsigned char*)ret; unsigned long destlen = max_destlen; int err = puff(dest, &destlen, source, sourcelen); if (err) { munmap(dest, max_destlen); errno = -err; return -1; } if (write(dest_fd, dest, destlen) != (ssize_t)destlen) { munmap(dest, max_destlen); return -1; } return munmap(dest, max_destlen); } static int setup_loop_device(unsigned char* data, unsigned long size, const char* loopname, int* loopfd_p) { int err = 0, loopfd = -1; int memfd = syscall(__NR_memfd_create, "syzkaller", 0); if (memfd == -1) { err = errno; goto error; } if (puff_zlib_to_file(data, size, memfd)) { err = errno; goto error_close_memfd; } loopfd = open(loopname, O_RDWR); if (loopfd == -1) { err = errno; goto error_close_memfd; } if (ioctl(loopfd, LOOP_SET_FD, memfd)) { if (errno != EBUSY) { err = errno; goto error_close_loop; } ioctl(loopfd, LOOP_CLR_FD, 0); usleep(1000); if (ioctl(loopfd, LOOP_SET_FD, memfd)) { err = errno; goto error_close_loop; } } close(memfd); *loopfd_p = loopfd; return 0; error_close_loop: close(loopfd); error_close_memfd: close(memfd); error: errno = err; return -1; } static void reset_loop_device(const char* loopname) { int loopfd = open(loopname, O_RDWR); if (loopfd == -1) { return; } if (ioctl(loopfd, LOOP_CLR_FD, 0)) { } close(loopfd); } static long syz_mount_image( volatile long fsarg, volatile long dir, volatile long flags, volatile long optsarg, volatile long change_dir, volatile unsigned long size, volatile long image) { unsigned char* data = (unsigned char*)image; int res = -1, err = 0, need_loop_device = !!size; char* mount_opts = (char*)optsarg; char* target = (char*)dir; char* fs = (char*)fsarg; char* source = NULL; char loopname[64]; if (need_loop_device) { int loopfd; memset(loopname, 0, sizeof(loopname)); snprintf(loopname, sizeof(loopname), "/dev/loop%llu", procid); if (setup_loop_device(data, size, loopname, &loopfd) == -1) return -1; close(loopfd); source = loopname; } mkdir(target, 0777); char opts[256]; memset(opts, 0, sizeof(opts)); if (strlen(mount_opts) > (sizeof(opts) - 32)) { } strncpy(opts, mount_opts, sizeof(opts) - 32); if (strcmp(fs, "iso9660") == 0) { flags |= MS_RDONLY; } else if (strncmp(fs, "ext", 3) == 0) { bool has_remount_ro = false; char* remount_ro_start = strstr(opts, "errors=remount-ro"); if (remount_ro_start != NULL) { char after = *(remount_ro_start + strlen("errors=remount-ro")); char before = remount_ro_start == opts ? '\0' : *(remount_ro_start - 1); has_remount_ro = ((before == '\0' || before == ',') && (after == '\0' || after == ',')); } if (strstr(opts, "errors=panic") || !has_remount_ro) strcat(opts, ",errors=continue"); } else if (strcmp(fs, "xfs") == 0) { strcat(opts, ",nouuid"); } else if (strncmp(fs, "gfs2", 4) == 0 && (strstr(opts, "errors=panic") || strstr(opts, "debug"))) { strcat(opts, ",errors=withdraw"); } res = mount(source, target, fs, flags, opts); if (res == -1) { err = errno; goto error_clear_loop; } res = open(target, O_RDONLY | O_DIRECTORY); if (res == -1) { err = errno; goto error_clear_loop; } if (change_dir) { res = chdir(target); if (res == -1) { err = errno; } } error_clear_loop: if (need_loop_device) reset_loop_device(loopname); errno = err; return res; } #define noinline __attribute__((noinline)) #define __no_stack_protector #define __addrspace_guest #define __optnone #define GUEST_CODE __attribute__((section("guest"))) __no_stack_protector __addrspace_guest extern char *__start_guest, *__stop_guest; #define X86_ADDR_TEXT 0x0000 #define X86_ADDR_PD_IOAPIC 0x0000 #define X86_ADDR_GDT 0x1000 #define X86_ADDR_LDT 0x1800 #define X86_ADDR_PML4 0x2000 #define X86_ADDR_PDP 0x3000 #define X86_ADDR_PD 0x4000 #define X86_ADDR_STACK0 0x0f80 #define X86_ADDR_VAR_HLT 0x2800 #define X86_ADDR_VAR_SYSRET 0x2808 #define X86_ADDR_VAR_SYSEXIT 0x2810 #define X86_ADDR_VAR_IDT 0x3800 #define X86_ADDR_VAR_TSS64 0x3a00 #define X86_ADDR_VAR_TSS64_CPL3 0x3c00 #define X86_ADDR_VAR_TSS16 0x3d00 #define X86_ADDR_VAR_TSS16_2 0x3e00 #define X86_ADDR_VAR_TSS16_CPL3 0x3f00 #define X86_ADDR_VAR_TSS32 0x4800 #define X86_ADDR_VAR_TSS32_2 0x4a00 #define X86_ADDR_VAR_TSS32_CPL3 0x4c00 #define X86_ADDR_VAR_TSS32_VM86 0x4e00 #define X86_ADDR_VAR_VMXON_PTR 0x5f00 #define X86_ADDR_VAR_VMCS_PTR 0x5f08 #define X86_ADDR_VAR_VMEXIT_PTR 0x5f10 #define X86_ADDR_VAR_VMWRITE_FLD 0x5f18 #define X86_ADDR_VAR_VMWRITE_VAL 0x5f20 #define X86_ADDR_VAR_VMXON 0x6000 #define X86_ADDR_VAR_VMCS 0x7000 #define X86_ADDR_VAR_VMEXIT_CODE 0x9000 #define X86_ADDR_VAR_USER_CODE 0x9100 #define X86_ADDR_VAR_USER_CODE2 0x9120 #define X86_SYZOS_ADDR_ZERO 0x0 #define X86_SYZOS_ADDR_GDT 0x1000 #define X86_SYZOS_ADDR_PML4 0x2000 #define X86_SYZOS_ADDR_PDP 0x3000 #define X86_SYZOS_ADDR_PT_POOL 0x5000 #define X86_SYZOS_ADDR_VAR_IDT 0x25000 #define X86_SYZOS_ADDR_VAR_TSS 0x26000 #define X86_SYZOS_ADDR_SMRAM 0x30000 #define X86_SYZOS_ADDR_EXIT 0x40000 #define X86_SYZOS_ADDR_UEXIT (X86_SYZOS_ADDR_EXIT + 256) #define X86_SYZOS_ADDR_DIRTY_PAGES 0x41000 #define X86_SYZOS_ADDR_USER_CODE 0x50000 #define SYZOS_ADDR_EXECUTOR_CODE 0x54000 #define X86_SYZOS_ADDR_SCRATCH_CODE 0x58000 #define X86_SYZOS_ADDR_STACK_BOTTOM 0x60000 #define X86_SYZOS_ADDR_STACK0 0x60f80 #define X86_SYZOS_PER_VCPU_REGIONS_BASE 0x70000 #define X86_SYZOS_L1_VCPU_REGION_SIZE 0x40000 #define X86_SYZOS_L1_VCPU_OFFSET_VM_ARCH_SPECIFIC 0x0000 #define X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA 0x1000 #define X86_SYZOS_L2_VM_REGION_SIZE 0x8000 #define X86_SYZOS_L2_VM_OFFSET_VMCS_VMCB 0x0000 #define X86_SYZOS_L2_VM_OFFSET_VM_STACK 0x1000 #define X86_SYZOS_L2_VM_OFFSET_VM_CODE 0x2000 #define X86_SYZOS_L2_VM_OFFSET_VM_PGTABLE 0x3000 #define X86_SYZOS_L2_VM_OFFSET_MSR_BITMAP 0x7000 #define X86_SYZOS_ADDR_UNUSED 0x200000 #define X86_SYZOS_ADDR_IOAPIC 0xfec00000 #define X86_SYZOS_ADDR_VMCS_VMCB(cpu,vm) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA + (vm) * X86_SYZOS_L2_VM_REGION_SIZE + X86_SYZOS_L2_VM_OFFSET_VMCS_VMCB) #define X86_SYZOS_ADDR_VM_CODE(cpu,vm) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA + (vm) * X86_SYZOS_L2_VM_REGION_SIZE + X86_SYZOS_L2_VM_OFFSET_VM_CODE) #define X86_SYZOS_ADDR_VM_STACK(cpu,vm) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA + (vm) * X86_SYZOS_L2_VM_REGION_SIZE + X86_SYZOS_L2_VM_OFFSET_VM_STACK) #define X86_SYZOS_ADDR_VM_PGTABLE(cpu,vm) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA + (vm) * X86_SYZOS_L2_VM_REGION_SIZE + X86_SYZOS_L2_VM_OFFSET_VM_PGTABLE) #define X86_SYZOS_ADDR_MSR_BITMAP(cpu,vm) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA + (vm) * X86_SYZOS_L2_VM_REGION_SIZE + X86_SYZOS_L2_VM_OFFSET_MSR_BITMAP) #define X86_SYZOS_ADDR_VM_ARCH_SPECIFIC(cpu) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_VM_ARCH_SPECIFIC) #define X86_SYZOS_SEL_CODE 0x8 #define X86_SYZOS_SEL_DATA 0x10 #define X86_SYZOS_SEL_TSS64 0x18 #define X86_CR0_PE 1ULL #define X86_CR0_MP (1ULL << 1) #define X86_CR0_EM (1ULL << 2) #define X86_CR0_TS (1ULL << 3) #define X86_CR0_ET (1ULL << 4) #define X86_CR0_NE (1ULL << 5) #define X86_CR0_WP (1ULL << 16) #define X86_CR0_AM (1ULL << 18) #define X86_CR0_NW (1ULL << 29) #define X86_CR0_CD (1ULL << 30) #define X86_CR0_PG (1ULL << 31) #define X86_CR4_VME 1ULL #define X86_CR4_PVI (1ULL << 1) #define X86_CR4_TSD (1ULL << 2) #define X86_CR4_DE (1ULL << 3) #define X86_CR4_PSE (1ULL << 4) #define X86_CR4_PAE (1ULL << 5) #define X86_CR4_MCE (1ULL << 6) #define X86_CR4_PGE (1ULL << 7) #define X86_CR4_PCE (1ULL << 8) #define X86_CR4_OSFXSR (1ULL << 8) #define X86_CR4_OSXMMEXCPT (1ULL << 10) #define X86_CR4_UMIP (1ULL << 11) #define X86_CR4_VMXE (1ULL << 13) #define X86_CR4_SMXE (1ULL << 14) #define X86_CR4_FSGSBASE (1ULL << 16) #define X86_CR4_PCIDE (1ULL << 17) #define X86_CR4_OSXSAVE (1ULL << 18) #define X86_CR4_SMEP (1ULL << 20) #define X86_CR4_SMAP (1ULL << 21) #define X86_CR4_PKE (1ULL << 22) #define X86_EFER_SCE 1ULL #define X86_EFER_LME (1ULL << 8) #define X86_EFER_LMA (1ULL << 10) #define X86_EFER_NXE (1ULL << 11) #define X86_EFER_SVME (1ULL << 12) #define X86_EFER_LMSLE (1ULL << 13) #define X86_EFER_FFXSR (1ULL << 14) #define X86_EFER_TCE (1ULL << 15) #define X86_PDE32_PRESENT 1UL #define X86_PDE32_RW (1UL << 1) #define X86_PDE32_USER (1UL << 2) #define X86_PDE32_PS (1UL << 7) #define X86_PDE64_PRESENT 1 #define X86_PDE64_RW (1ULL << 1) #define X86_PDE64_USER (1ULL << 2) #define X86_PDE64_ACCESSED (1ULL << 5) #define X86_PDE64_DIRTY (1ULL << 6) #define X86_PDE64_PS (1ULL << 7) #define X86_PDE64_G (1ULL << 8) #define EPT_MEMTYPE_WB (6ULL << 3) #define EPT_ACCESSED (1ULL << 8) #define EPT_DIRTY (1ULL << 9) #define X86_SEL_LDT (1 << 3) #define X86_SEL_CS16 (2 << 3) #define X86_SEL_DS16 (3 << 3) #define X86_SEL_CS16_CPL3 ((4 << 3) + 3) #define X86_SEL_DS16_CPL3 ((5 << 3) + 3) #define X86_SEL_CS32 (6 << 3) #define X86_SEL_DS32 (7 << 3) #define X86_SEL_CS32_CPL3 ((8 << 3) + 3) #define X86_SEL_DS32_CPL3 ((9 << 3) + 3) #define X86_SEL_CS64 (10 << 3) #define X86_SEL_DS64 (11 << 3) #define X86_SEL_CS64_CPL3 ((12 << 3) + 3) #define X86_SEL_DS64_CPL3 ((13 << 3) + 3) #define X86_SEL_CGATE16 (14 << 3) #define X86_SEL_TGATE16 (15 << 3) #define X86_SEL_CGATE32 (16 << 3) #define X86_SEL_TGATE32 (17 << 3) #define X86_SEL_CGATE64 (18 << 3) #define X86_SEL_CGATE64_HI (19 << 3) #define X86_SEL_TSS16 (20 << 3) #define X86_SEL_TSS16_2 (21 << 3) #define X86_SEL_TSS16_CPL3 ((22 << 3) + 3) #define X86_SEL_TSS32 (23 << 3) #define X86_SEL_TSS32_2 (24 << 3) #define X86_SEL_TSS32_CPL3 ((25 << 3) + 3) #define X86_SEL_TSS32_VM86 (26 << 3) #define X86_SEL_TSS64 (27 << 3) #define X86_SEL_TSS64_HI (28 << 3) #define X86_SEL_TSS64_CPL3 ((29 << 3) + 3) #define X86_SEL_TSS64_CPL3_HI (30 << 3) #define X86_MSR_IA32_FEATURE_CONTROL 0x3a #define X86_MSR_IA32_VMX_BASIC 0x480 #define X86_MSR_IA32_SMBASE 0x9e #define X86_MSR_IA32_SYSENTER_CS 0x174 #define X86_MSR_IA32_SYSENTER_ESP 0x175 #define X86_MSR_IA32_SYSENTER_EIP 0x176 #define X86_MSR_IA32_CR_PAT 0x277 #define X86_MSR_CORE_PERF_GLOBAL_CTRL 0x38f #define X86_MSR_IA32_VMX_TRUE_PINBASED_CTLS 0x48d #define X86_MSR_IA32_VMX_TRUE_PROCBASED_CTLS 0x48e #define X86_MSR_IA32_VMX_TRUE_EXIT_CTLS 0x48f #define X86_MSR_IA32_VMX_TRUE_ENTRY_CTLS 0x490 #define X86_MSR_IA32_EFER 0xc0000080 #define X86_MSR_IA32_STAR 0xC0000081 #define X86_MSR_IA32_LSTAR 0xC0000082 #define X86_MSR_FS_BASE 0xc0000100 #define X86_MSR_GS_BASE 0xc0000101 #define X86_MSR_VM_HSAVE_PA 0xc0010117 #define X86_MSR_IA32_VMX_PROCBASED_CTLS2 0x48B #define RFLAGS_1_BIT (1ULL << 1) #define CPU_BASED_HLT_EXITING (1U << 7) #define CPU_BASED_RDTSC_EXITING (1U << 12) #define AR_TSS_AVAILABLE 0x0089 #define SVM_ATTR_LDTR_UNUSABLE 0x0000 #define VMX_AR_TSS_BUSY 0x008b #define VMX_AR_TSS_AVAILABLE 0x0089 #define VMX_AR_LDTR_UNUSABLE 0x10000 #define VM_ENTRY_IA32E_MODE (1U << 9) #define SECONDARY_EXEC_ENABLE_EPT (1U << 1) #define SECONDARY_EXEC_ENABLE_RDTSCP (1U << 3) #define VM_EXIT_HOST_ADDR_SPACE_SIZE (1U << 9) #define CPU_BASED_ACTIVATE_SECONDARY_CONTROLS (1U << 31) #define VMX_ACCESS_RIGHTS_P (1 << 7) #define VMX_ACCESS_RIGHTS_S (1 << 4) #define VMX_ACCESS_RIGHTS_TYPE_A (1 << 0) #define VMX_ACCESS_RIGHTS_TYPE_RW (1 << 1) #define VMX_ACCESS_RIGHTS_TYPE_E (1 << 3) #define VMX_ACCESS_RIGHTS_G (1 << 15) #define VMX_ACCESS_RIGHTS_DB (1 << 14) #define VMX_ACCESS_RIGHTS_L (1 << 13) #define VMX_AR_64BIT_DATA_STACK (VMX_ACCESS_RIGHTS_P | VMX_ACCESS_RIGHTS_S | VMX_ACCESS_RIGHTS_TYPE_RW | VMX_ACCESS_RIGHTS_TYPE_A | VMX_ACCESS_RIGHTS_G | VMX_ACCESS_RIGHTS_DB) #define VMX_AR_64BIT_CODE (VMX_ACCESS_RIGHTS_P | VMX_ACCESS_RIGHTS_S | VMX_ACCESS_RIGHTS_TYPE_E | VMX_ACCESS_RIGHTS_TYPE_RW | VMX_ACCESS_RIGHTS_TYPE_A | VMX_ACCESS_RIGHTS_G | VMX_ACCESS_RIGHTS_L) #define VMCS_VIRTUAL_PROCESSOR_ID 0x00000000 #define VMCS_POSTED_INTR_NV 0x00000002 #define VMCS_MSR_BITMAP 0x00002004 #define VMCS_VMREAD_BITMAP 0x00002006 #define VMCS_VMWRITE_BITMAP 0x00002008 #define VMCS_EPT_POINTER 0x0000201a #define VMCS_LINK_POINTER 0x00002800 #define VMCS_PIN_BASED_VM_EXEC_CONTROL 0x00004000 #define VMCS_CPU_BASED_VM_EXEC_CONTROL 0x00004002 #define VMCS_EXCEPTION_BITMAP 0x00004004 #define VMCS_PAGE_FAULT_ERROR_CODE_MASK 0x00004006 #define VMCS_PAGE_FAULT_ERROR_CODE_MATCH 0x00004008 #define VMCS_CR3_TARGET_COUNT 0x0000400a #define VMCS_VM_EXIT_CONTROLS 0x0000400c #define VMCS_VM_EXIT_MSR_STORE_COUNT 0x0000400e #define VMCS_VM_EXIT_MSR_LOAD_COUNT 0x00004010 #define VMCS_VM_ENTRY_CONTROLS 0x00004012 #define VMCS_VM_ENTRY_MSR_LOAD_COUNT 0x00004014 #define VMCS_VM_ENTRY_INTR_INFO_FIELD 0x00004016 #define VMCS_TPR_THRESHOLD 0x0000401c #define VMCS_SECONDARY_VM_EXEC_CONTROL 0x0000401e #define VMCS_VM_INSTRUCTION_ERROR 0x00004400 #define VMCS_VM_EXIT_REASON 0x00004402 #define VMCS_VMX_PREEMPTION_TIMER_VALUE 0x0000482e #define VMCS_CR0_GUEST_HOST_MASK 0x00006000 #define VMCS_CR4_GUEST_HOST_MASK 0x00006002 #define VMCS_CR0_READ_SHADOW 0x00006004 #define VMCS_CR4_READ_SHADOW 0x00006006 #define VMCS_HOST_ES_SELECTOR 0x00000c00 #define VMCS_HOST_CS_SELECTOR 0x00000c02 #define VMCS_HOST_SS_SELECTOR 0x00000c04 #define VMCS_HOST_DS_SELECTOR 0x00000c06 #define VMCS_HOST_FS_SELECTOR 0x00000c08 #define VMCS_HOST_GS_SELECTOR 0x00000c0a #define VMCS_HOST_TR_SELECTOR 0x00000c0c #define VMCS_HOST_IA32_PAT 0x00002c00 #define VMCS_HOST_IA32_EFER 0x00002c02 #define VMCS_HOST_IA32_PERF_GLOBAL_CTRL 0x00002c04 #define VMCS_HOST_IA32_SYSENTER_CS 0x00004c00 #define VMCS_HOST_CR0 0x00006c00 #define VMCS_HOST_CR3 0x00006c02 #define VMCS_HOST_CR4 0x00006c04 #define VMCS_HOST_FS_BASE 0x00006c06 #define VMCS_HOST_GS_BASE 0x00006c08 #define VMCS_HOST_TR_BASE 0x00006c0a #define VMCS_HOST_GDTR_BASE 0x00006c0c #define VMCS_HOST_IDTR_BASE 0x00006c0e #define VMCS_HOST_IA32_SYSENTER_ESP 0x00006c10 #define VMCS_HOST_IA32_SYSENTER_EIP 0x00006c12 #define VMCS_HOST_RSP 0x00006c14 #define VMCS_HOST_RIP 0x00006c16 #define VMCS_GUEST_INTR_STATUS 0x00000810 #define VMCS_GUEST_PML_INDEX 0x00000812 #define VMCS_GUEST_IA32_DEBUGCTL 0x00002802 #define VMCS_GUEST_IA32_PAT 0x00002804 #define VMCS_GUEST_IA32_EFER 0x00002806 #define VMCS_GUEST_IA32_PERF_GLOBAL_CTRL 0x00002808 #define VMCS_GUEST_ES_SELECTOR 0x00000800 #define VMCS_GUEST_CS_SELECTOR 0x00000802 #define VMCS_GUEST_SS_SELECTOR 0x00000804 #define VMCS_GUEST_DS_SELECTOR 0x00000806 #define VMCS_GUEST_FS_SELECTOR 0x00000808 #define VMCS_GUEST_GS_SELECTOR 0x0000080a #define VMCS_GUEST_LDTR_SELECTOR 0x0000080c #define VMCS_GUEST_TR_SELECTOR 0x0000080e #define VMCS_GUEST_ES_LIMIT 0x00004800 #define VMCS_GUEST_CS_LIMIT 0x00004802 #define VMCS_GUEST_SS_LIMIT 0x00004804 #define VMCS_GUEST_DS_LIMIT 0x00004806 #define VMCS_GUEST_FS_LIMIT 0x00004808 #define VMCS_GUEST_GS_LIMIT 0x0000480a #define VMCS_GUEST_LDTR_LIMIT 0x0000480c #define VMCS_GUEST_TR_LIMIT 0x0000480e #define VMCS_GUEST_GDTR_LIMIT 0x00004810 #define VMCS_GUEST_IDTR_LIMIT 0x00004812 #define VMCS_GUEST_ES_ACCESS_RIGHTS 0x00004814 #define VMCS_GUEST_CS_ACCESS_RIGHTS 0x00004816 #define VMCS_GUEST_SS_ACCESS_RIGHTS 0x00004818 #define VMCS_GUEST_DS_ACCESS_RIGHTS 0x0000481a #define VMCS_GUEST_FS_ACCESS_RIGHTS 0x0000481c #define VMCS_GUEST_GS_ACCESS_RIGHTS 0x0000481e #define VMCS_GUEST_LDTR_ACCESS_RIGHTS 0x00004820 #define VMCS_GUEST_TR_ACCESS_RIGHTS 0x00004822 #define VMCS_GUEST_ACTIVITY_STATE 0x00004824 #define VMCS_GUEST_INTERRUPTIBILITY_INFO 0x00004826 #define VMCS_GUEST_SYSENTER_CS 0x0000482a #define VMCS_GUEST_CR0 0x00006800 #define VMCS_GUEST_CR3 0x00006802 #define VMCS_GUEST_CR4 0x00006804 #define VMCS_GUEST_ES_BASE 0x00006806 #define VMCS_GUEST_CS_BASE 0x00006808 #define VMCS_GUEST_SS_BASE 0x0000680a #define VMCS_GUEST_DS_BASE 0x0000680c #define VMCS_GUEST_FS_BASE 0x0000680e #define VMCS_GUEST_GS_BASE 0x00006810 #define VMCS_GUEST_LDTR_BASE 0x00006812 #define VMCS_GUEST_TR_BASE 0x00006814 #define VMCS_GUEST_GDTR_BASE 0x00006816 #define VMCS_GUEST_IDTR_BASE 0x00006818 #define VMCS_GUEST_DR7 0x0000681a #define VMCS_GUEST_RSP 0x0000681c #define VMCS_GUEST_RIP 0x0000681e #define VMCS_GUEST_RFLAGS 0x00006820 #define VMCS_GUEST_PENDING_DBG_EXCEPTIONS 0x00006822 #define VMCS_GUEST_SYSENTER_ESP 0x00006824 #define VMCS_GUEST_SYSENTER_EIP 0x00006826 #define VMCB_CTRL_INTERCEPT_VEC3 0x0c #define VMCB_CTRL_INTERCEPT_VEC3_ALL (0xffffffff) #define VMCB_CTRL_INTERCEPT_VEC4 0x10 #define VMCB_CTRL_INTERCEPT_VEC4_ALL (0x3ff) #define VMCB_CTRL_ASID 0x058 #define VMCB_EXIT_CODE 0x070 #define VMCB_CTRL_NP_ENABLE 0x090 #define VMCB_CTRL_NPT_ENABLE_BIT 0 #define VMCB_CTRL_N_CR3 0x0b0 #define VMCB_GUEST_ES_SEL 0x400 #define VMCB_GUEST_ES_ATTR 0x402 #define VMCB_GUEST_ES_LIM 0x404 #define VMCB_GUEST_ES_BASE 0x408 #define VMCB_GUEST_CS_SEL 0x410 #define VMCB_GUEST_CS_ATTR 0x412 #define VMCB_GUEST_CS_LIM 0x414 #define VMCB_GUEST_CS_BASE 0x418 #define VMCB_GUEST_SS_SEL 0x420 #define VMCB_GUEST_SS_ATTR 0x422 #define VMCB_GUEST_SS_LIM 0x424 #define VMCB_GUEST_SS_BASE 0x428 #define VMCB_GUEST_DS_SEL 0x430 #define VMCB_GUEST_DS_ATTR 0x432 #define VMCB_GUEST_DS_LIM 0x434 #define VMCB_GUEST_DS_BASE 0x438 #define VMCB_GUEST_FS_SEL 0x440 #define VMCB_GUEST_FS_ATTR 0x442 #define VMCB_GUEST_FS_LIM 0x444 #define VMCB_GUEST_FS_BASE 0x448 #define VMCB_GUEST_GS_SEL 0x450 #define VMCB_GUEST_GS_ATTR 0x452 #define VMCB_GUEST_GS_LIM 0x454 #define VMCB_GUEST_GS_BASE 0x458 #define VMCB_GUEST_IDTR_SEL 0x480 #define VMCB_GUEST_IDTR_ATTR 0x482 #define VMCB_GUEST_IDTR_LIM 0x484 #define VMCB_GUEST_IDTR_BASE 0x488 #define VMCB_GUEST_GDTR_SEL 0x460 #define VMCB_GUEST_GDTR_ATTR 0x462 #define VMCB_GUEST_GDTR_LIM 0x464 #define VMCB_GUEST_GDTR_BASE 0x468 #define VMCB_GUEST_LDTR_SEL 0x470 #define VMCB_GUEST_LDTR_ATTR 0x472 #define VMCB_GUEST_LDTR_LIM 0x474 #define VMCB_GUEST_LDTR_BASE 0x478 #define VMCB_GUEST_TR_SEL 0x490 #define VMCB_GUEST_TR_ATTR 0x492 #define VMCB_GUEST_TR_LIM 0x494 #define VMCB_GUEST_TR_BASE 0x498 #define VMCB_GUEST_EFER 0x4d0 #define VMCB_GUEST_CR4 0x548 #define VMCB_GUEST_CR3 0x550 #define VMCB_GUEST_CR0 0x558 #define VMCB_GUEST_DR7 0x560 #define VMCB_GUEST_DR6 0x568 #define VMCB_GUEST_RFLAGS 0x570 #define VMCB_GUEST_RIP 0x578 #define VMCB_GUEST_RSP 0x5d8 #define VMCB_GUEST_PAT 0x668 #define VMCB_GUEST_DEBUGCTL 0x670 #define SVM_ATTR_G (1 << 15) #define SVM_ATTR_DB (1 << 14) #define SVM_ATTR_L (1 << 13) #define SVM_ATTR_P (1 << 7) #define SVM_ATTR_S (1 << 4) #define SVM_ATTR_TYPE_A (1 << 0) #define SVM_ATTR_TYPE_RW (1 << 1) #define SVM_ATTR_TYPE_E (1 << 3) #define SVM_ATTR_64BIT_CODE (SVM_ATTR_P | SVM_ATTR_S | SVM_ATTR_TYPE_E | SVM_ATTR_TYPE_RW | SVM_ATTR_TYPE_A | SVM_ATTR_L | SVM_ATTR_G) #define SVM_ATTR_64BIT_DATA (SVM_ATTR_P | SVM_ATTR_S | SVM_ATTR_TYPE_RW | SVM_ATTR_TYPE_A | SVM_ATTR_DB | SVM_ATTR_G) #define X86_NEXT_INSN $0xbadc0de #define X86_PREFIX_SIZE 0xba1d #define KVM_MAX_VCPU 4 #define KVM_PAGE_SIZE (1 << 12) #define KVM_GUEST_PAGES 1024 #define KVM_GUEST_MEM_SIZE (KVM_GUEST_PAGES * KVM_PAGE_SIZE) #define SZ_4K 0x00001000 #define SZ_64K 0x00010000 #define GENMASK_ULL(h,l) (((~0ULL) - (1ULL << (l)) + 1ULL) & (~0ULL >> (63 - (h)))) extern char* __start_guest; static inline uintptr_t executor_fn_guest_addr(void* fn) { volatile uintptr_t start = (uintptr_t)&__start_guest; volatile uintptr_t offset = SYZOS_ADDR_EXECUTOR_CODE; return (uintptr_t)fn - start + offset; } typedef enum { SYZOS_API_UEXIT = 0, SYZOS_API_CODE = 10, SYZOS_API_CPUID = 100, SYZOS_API_WRMSR = 101, SYZOS_API_RDMSR = 102, SYZOS_API_WR_CRN = 103, SYZOS_API_WR_DRN = 104, SYZOS_API_IN_DX = 105, SYZOS_API_OUT_DX = 106, SYZOS_API_SET_IRQ_HANDLER = 200, SYZOS_API_ENABLE_NESTED = 300, SYZOS_API_NESTED_CREATE_VM = 301, SYZOS_API_NESTED_LOAD_CODE = 302, SYZOS_API_NESTED_VMLAUNCH = 303, SYZOS_API_NESTED_VMRESUME = 304, SYZOS_API_NESTED_INTEL_VMWRITE_MASK = 340, SYZOS_API_NESTED_AMD_VMCB_WRITE_MASK = 380, SYZOS_API_NESTED_AMD_INVLPGA = 381, SYZOS_API_NESTED_AMD_STGI = 382, SYZOS_API_NESTED_AMD_CLGI = 383, SYZOS_API_NESTED_AMD_INJECT_EVENT = 384, SYZOS_API_NESTED_AMD_SET_INTERCEPT = 385, SYZOS_API_NESTED_AMD_VMLOAD = 386, SYZOS_API_NESTED_AMD_VMSAVE = 387, SYZOS_API_STOP, } syzos_api_id; struct api_call_header { uint64_t call; uint64_t size; }; struct api_call_uexit { struct api_call_header header; uint64_t exit_code; }; struct api_call_code { struct api_call_header header; uint8_t insns[]; }; struct api_call_nested_load_code { struct api_call_header header; uint64_t vm_id; uint8_t insns[]; }; struct api_call_cpuid { struct api_call_header header; uint32_t eax; uint32_t ecx; }; struct api_call_1 { struct api_call_header header; uint64_t arg; }; struct api_call_2 { struct api_call_header header; uint64_t args[2]; }; struct api_call_3 { struct api_call_header header; uint64_t args[3]; }; struct api_call_5 { struct api_call_header header; uint64_t args[5]; }; struct l2_guest_regs { uint64_t rax, rbx, rcx, rdx, rsi, rdi, rbp; uint64_t r8, r9, r10, r11, r12, r13, r14, r15; }; GUEST_CODE static void guest_uexit(uint64_t exit_code); GUEST_CODE static void nested_vm_exit_handler_intel(uint64_t exit_reason, struct l2_guest_regs* regs); GUEST_CODE static void guest_execute_code(uint8_t* insns, uint64_t size); GUEST_CODE static void guest_handle_cpuid(uint32_t eax, uint32_t ecx); GUEST_CODE static void guest_handle_wrmsr(uint64_t reg, uint64_t val); GUEST_CODE static void guest_handle_rdmsr(uint64_t reg); GUEST_CODE static void guest_handle_wr_crn(struct api_call_2* cmd); GUEST_CODE static void guest_handle_wr_drn(struct api_call_2* cmd); GUEST_CODE static void guest_handle_in_dx(struct api_call_2* cmd); GUEST_CODE static void guest_handle_out_dx(struct api_call_3* cmd); GUEST_CODE static void guest_handle_set_irq_handler(struct api_call_2* cmd); GUEST_CODE static void guest_handle_enable_nested(struct api_call_1* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_create_vm(struct api_call_1* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_load_code(struct api_call_nested_load_code* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_vmlaunch(struct api_call_1* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_vmresume(struct api_call_1* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_intel_vmwrite_mask(struct api_call_5* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_vmcb_write_mask(struct api_call_5* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_invlpga(struct api_call_2* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_stgi(); GUEST_CODE static void guest_handle_nested_amd_clgi(); GUEST_CODE static void guest_handle_nested_amd_inject_event(struct api_call_5* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_set_intercept(struct api_call_5* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_vmload(struct api_call_1* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_vmsave(struct api_call_1* cmd, uint64_t cpu_id); typedef enum { UEXIT_END = (uint64_t)-1, UEXIT_IRQ = (uint64_t)-2, UEXIT_ASSERT = (uint64_t)-3, } uexit_code; typedef enum { CPU_VENDOR_INTEL, CPU_VENDOR_AMD, } cpu_vendor_id; __attribute__((naked)) GUEST_CODE static void dummy_null_handler() { asm("iretq"); } __attribute__((naked)) GUEST_CODE static void uexit_irq_handler() { asm volatile(R"( movq $-2, %rdi call guest_uexit iretq )"); } __attribute__((used)) GUEST_CODE static void guest_main(uint64_t size, uint64_t cpu) { uint64_t addr = X86_SYZOS_ADDR_USER_CODE + cpu * KVM_PAGE_SIZE; while (size >= sizeof(struct api_call_header)) { struct api_call_header* cmd = (struct api_call_header*)addr; if (cmd->call >= SYZOS_API_STOP) return; if (cmd->size > size) return; volatile uint64_t call = cmd->call; if (call == SYZOS_API_UEXIT) { struct api_call_uexit* ucmd = (struct api_call_uexit*)cmd; guest_uexit(ucmd->exit_code); } else if (call == SYZOS_API_CODE) { struct api_call_code* ccmd = (struct api_call_code*)cmd; guest_execute_code(ccmd->insns, cmd->size - sizeof(struct api_call_header)); } else if (call == SYZOS_API_CPUID) { struct api_call_cpuid* ccmd = (struct api_call_cpuid*)cmd; guest_handle_cpuid(ccmd->eax, ccmd->ecx); } else if (call == SYZOS_API_WRMSR) { struct api_call_2* ccmd = (struct api_call_2*)cmd; guest_handle_wrmsr(ccmd->args[0], ccmd->args[1]); } else if (call == SYZOS_API_RDMSR) { struct api_call_1* ccmd = (struct api_call_1*)cmd; guest_handle_rdmsr(ccmd->arg); } else if (call == SYZOS_API_WR_CRN) { guest_handle_wr_crn((struct api_call_2*)cmd); } else if (call == SYZOS_API_WR_DRN) { guest_handle_wr_drn((struct api_call_2*)cmd); } else if (call == SYZOS_API_IN_DX) { guest_handle_in_dx((struct api_call_2*)cmd); } else if (call == SYZOS_API_OUT_DX) { guest_handle_out_dx((struct api_call_3*)cmd); } else if (call == SYZOS_API_SET_IRQ_HANDLER) { guest_handle_set_irq_handler((struct api_call_2*)cmd); } else if (call == SYZOS_API_ENABLE_NESTED) { guest_handle_enable_nested((struct api_call_1*)cmd, cpu); } else if (call == SYZOS_API_NESTED_CREATE_VM) { guest_handle_nested_create_vm((struct api_call_1*)cmd, cpu); } else if (call == SYZOS_API_NESTED_LOAD_CODE) { guest_handle_nested_load_code((struct api_call_nested_load_code*)cmd, cpu); } else if (call == SYZOS_API_NESTED_VMLAUNCH) { guest_handle_nested_vmlaunch((struct api_call_1*)cmd, cpu); } else if (call == SYZOS_API_NESTED_VMRESUME) { guest_handle_nested_vmresume((struct api_call_1*)cmd, cpu); } else if (call == SYZOS_API_NESTED_INTEL_VMWRITE_MASK) { guest_handle_nested_intel_vmwrite_mask((struct api_call_5*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_VMCB_WRITE_MASK) { guest_handle_nested_amd_vmcb_write_mask((struct api_call_5*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_INVLPGA) { guest_handle_nested_amd_invlpga((struct api_call_2*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_STGI) { guest_handle_nested_amd_stgi(); } else if (call == SYZOS_API_NESTED_AMD_CLGI) { guest_handle_nested_amd_clgi(); } else if (call == SYZOS_API_NESTED_AMD_INJECT_EVENT) { guest_handle_nested_amd_inject_event((struct api_call_5*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_SET_INTERCEPT) { guest_handle_nested_amd_set_intercept((struct api_call_5*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_VMLOAD) { guest_handle_nested_amd_vmload((struct api_call_1*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_VMSAVE) { guest_handle_nested_amd_vmsave((struct api_call_1*)cmd, cpu); } addr += cmd->size; size -= cmd->size; }; guest_uexit((uint64_t)-1); } GUEST_CODE static noinline void guest_execute_code(uint8_t* insns, uint64_t size) { volatile void (*fn)() = (volatile void (*)())insns; fn(); } __attribute__((used)) GUEST_CODE static noinline void guest_uexit(uint64_t exit_code) { volatile uint64_t* ptr = (volatile uint64_t*)X86_SYZOS_ADDR_UEXIT; *ptr = exit_code; } GUEST_CODE static noinline void guest_handle_cpuid(uint32_t eax, uint32_t ecx) { asm volatile( "cpuid\n" : : "a"(eax), "c"(ecx) : "rbx", "rdx"); } GUEST_CODE static noinline void wrmsr(uint64_t reg, uint64_t val) { asm volatile( "wrmsr" : : "c"(reg), "a"((uint32_t)val), "d"((uint32_t)(val >> 32)) : "memory"); } GUEST_CODE static noinline void guest_handle_wrmsr(uint64_t reg, uint64_t val) { wrmsr(reg, val); } GUEST_CODE static noinline uint64_t rdmsr(uint64_t msr_id) { uint32_t low = 0, high = 0; asm volatile("rdmsr" : "=a"(low), "=d"(high) : "c"(msr_id)); return ((uint64_t)high << 32) | low; } GUEST_CODE static noinline void guest_handle_rdmsr(uint64_t reg) { (void)rdmsr(reg); } GUEST_CODE static noinline void guest_handle_wr_crn(struct api_call_2* cmd) { uint64_t value = cmd->args[1]; volatile uint64_t reg = cmd->args[0]; if (reg == 0) { asm volatile("movq %0, %%cr0" ::"r"(value) : "memory"); return; } if (reg == 2) { asm volatile("movq %0, %%cr2" ::"r"(value) : "memory"); return; } if (reg == 3) { asm volatile("movq %0, %%cr3" ::"r"(value) : "memory"); return; } if (reg == 4) { asm volatile("movq %0, %%cr4" ::"r"(value) : "memory"); return; } if (reg == 8) { asm volatile("movq %0, %%cr8" ::"r"(value) : "memory"); return; } } GUEST_CODE static noinline void guest_handle_wr_drn(struct api_call_2* cmd) { uint64_t value = cmd->args[1]; volatile uint64_t reg = cmd->args[0]; if (reg == 0) { asm volatile("movq %0, %%dr0" ::"r"(value) : "memory"); return; } if (reg == 1) { asm volatile("movq %0, %%dr1" ::"r"(value) : "memory"); return; } if (reg == 2) { asm volatile("movq %0, %%dr2" ::"r"(value) : "memory"); return; } if (reg == 3) { asm volatile("movq %0, %%dr3" ::"r"(value) : "memory"); return; } if (reg == 4) { asm volatile("movq %0, %%dr4" ::"r"(value) : "memory"); return; } if (reg == 5) { asm volatile("movq %0, %%dr5" ::"r"(value) : "memory"); return; } if (reg == 6) { asm volatile("movq %0, %%dr6" ::"r"(value) : "memory"); return; } if (reg == 7) { asm volatile("movq %0, %%dr7" ::"r"(value) : "memory"); return; } } GUEST_CODE static noinline void guest_handle_in_dx(struct api_call_2* cmd) { uint16_t port = cmd->args[0]; volatile int size = cmd->args[1]; if (size == 1) { uint8_t unused; asm volatile("inb %1, %0" : "=a"(unused) : "d"(port)); return; } if (size == 2) { uint16_t unused; asm volatile("inw %1, %0" : "=a"(unused) : "d"(port)); return; } if (size == 4) { uint32_t unused; asm volatile("inl %1, %0" : "=a"(unused) : "d"(port)); } return; } GUEST_CODE static noinline void guest_handle_out_dx(struct api_call_3* cmd) { uint16_t port = cmd->args[0]; volatile int size = cmd->args[1]; uint32_t data = (uint32_t)cmd->args[2]; if (size == 1) { asm volatile("outb %b0, %w1" ::"a"(data), "d"(port)); return; } if (size == 2) { asm volatile("outw %w0, %w1" ::"a"(data), "d"(port)); return; } if (size == 4) { asm volatile("outl %k0, %w1" ::"a"(data), "d"(port)); return; } } struct idt_entry_64 { uint16_t offset_low; uint16_t selector; uint8_t ist; uint8_t type_attr; uint16_t offset_mid; uint32_t offset_high; uint32_t reserved; } __attribute__((packed)); GUEST_CODE static void set_idt_gate(uint8_t vector, uint64_t handler) { volatile struct idt_entry_64* idt = (volatile struct idt_entry_64*)(X86_SYZOS_ADDR_VAR_IDT); volatile struct idt_entry_64* idt_entry = &idt[vector]; idt_entry->offset_low = (uint16_t)handler; idt_entry->offset_mid = (uint16_t)(handler >> 16); idt_entry->offset_high = (uint32_t)(handler >> 32); idt_entry->selector = X86_SYZOS_SEL_CODE; idt_entry->type_attr = 0x8E; idt_entry->ist = 0; idt_entry->reserved = 0; } GUEST_CODE static noinline void guest_handle_set_irq_handler(struct api_call_2* cmd) { uint8_t vector = (uint8_t)cmd->args[0]; uint64_t type = cmd->args[1]; volatile uint64_t handler_addr = 0; if (type == 1) handler_addr = executor_fn_guest_addr(dummy_null_handler); else if (type == 2) handler_addr = executor_fn_guest_addr(uexit_irq_handler); set_idt_gate(vector, handler_addr); } GUEST_CODE static cpu_vendor_id get_cpu_vendor(void) { uint32_t ebx, eax = 0; asm volatile( "cpuid" : "+a"(eax), "=b"(ebx) : : "ecx", "edx"); if (ebx == 0x756e6547) { return CPU_VENDOR_INTEL; } else if (ebx == 0x68747541) { return CPU_VENDOR_AMD; } else { guest_uexit(UEXIT_ASSERT); return CPU_VENDOR_INTEL; } } GUEST_CODE static inline uint64_t read_cr0(void) { uint64_t val; asm volatile("mov %%cr0, %0" : "=r"(val)); return val; } GUEST_CODE static inline uint64_t read_cr3(void) { uint64_t val; asm volatile("mov %%cr3, %0" : "=r"(val)); return val; } GUEST_CODE static inline uint64_t read_cr4(void) { uint64_t val; asm volatile("mov %%cr4, %0" : "=r"(val)); return val; } GUEST_CODE static inline void write_cr4(uint64_t val) { asm volatile("mov %0, %%cr4" : : "r"(val)); } GUEST_CODE static noinline void vmwrite(uint64_t field, uint64_t value) { uint8_t error = 0; asm volatile("vmwrite %%rax, %%rbx; setna %0" : "=q"(error) : "a"(value), "b"(field) : "cc", "memory"); if (error) guest_uexit(UEXIT_ASSERT); } GUEST_CODE static noinline uint64_t vmread(uint64_t field) { uint64_t value; asm volatile("vmread %%rbx, %%rax" : "=a"(value) : "b"(field) : "cc"); return value; } GUEST_CODE static inline void nested_vmptrld(uint64_t cpu_id, uint64_t vm_id) { uint64_t vmcs_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint8_t error = 0; asm volatile("vmptrld %1; setna %0" : "=q"(error) : "m"(vmcs_addr) : "memory", "cc"); if (error) guest_uexit(0xE2BAD2); } GUEST_CODE static noinline void vmcb_write16(uint64_t vmcb, uint16_t offset, uint16_t val) { *((volatile uint16_t*)(vmcb + offset)) = val; } GUEST_CODE static noinline void vmcb_write32(uint64_t vmcb, uint16_t offset, uint32_t val) { *((volatile uint32_t*)(vmcb + offset)) = val; } GUEST_CODE static noinline uint32_t vmcb_read32(uint64_t vmcb, uint16_t offset) { return *((volatile uint32_t*)(vmcb + offset)); } GUEST_CODE static noinline void vmcb_write64(uint64_t vmcb, uint16_t offset, uint64_t val) { *((volatile uint64_t*)(vmcb + offset)) = val; } GUEST_CODE static noinline uint64_t vmcb_read64(volatile uint8_t* vmcb, uint16_t offset) { return *((volatile uint64_t*)(vmcb + offset)); } GUEST_CODE static void guest_memset(void* s, uint8_t c, int size) { volatile uint8_t* p = (volatile uint8_t*)s; for (int i = 0; i < size; i++) p[i] = c; } GUEST_CODE static void guest_memcpy(void* dst, void* src, int size) { volatile uint8_t* d = (volatile uint8_t*)dst; volatile uint8_t* s = (volatile uint8_t*)src; for (int i = 0; i < size; i++) d[i] = s[i]; } GUEST_CODE static noinline void nested_enable_vmx_intel(uint64_t cpu_id) { uint64_t vmxon_addr = X86_SYZOS_ADDR_VM_ARCH_SPECIFIC(cpu_id); uint64_t cr4 = read_cr4(); cr4 |= X86_CR4_VMXE; write_cr4(cr4); uint64_t feature_control = rdmsr(X86_MSR_IA32_FEATURE_CONTROL); if ((feature_control & 1) == 0) { feature_control |= 0b101; asm volatile("wrmsr" : : "d"(0x0), "c"(X86_MSR_IA32_FEATURE_CONTROL), "A"(feature_control)); } *(uint32_t*)vmxon_addr = rdmsr(X86_MSR_IA32_VMX_BASIC); uint8_t error; asm volatile("vmxon %1; setna %0" : "=q"(error) : "m"(vmxon_addr) : "memory", "cc"); if (error) { guest_uexit(0xE2BAD0); return; } } GUEST_CODE static noinline void nested_enable_svm_amd(uint64_t cpu_id) { uint64_t hsave_addr = X86_SYZOS_ADDR_VM_ARCH_SPECIFIC(cpu_id); uint64_t efer = rdmsr(X86_MSR_IA32_EFER); efer |= X86_EFER_SVME; wrmsr(X86_MSR_IA32_EFER, efer); wrmsr(X86_MSR_VM_HSAVE_PA, hsave_addr); } GUEST_CODE static noinline void guest_handle_enable_nested(struct api_call_1* cmd, uint64_t cpu_id) { if (get_cpu_vendor() == CPU_VENDOR_INTEL) { nested_enable_vmx_intel(cpu_id); } else { nested_enable_svm_amd(cpu_id); } } GUEST_CODE static noinline void setup_l2_page_tables(cpu_vendor_id vendor, uint64_t cpu_id, uint64_t vm_id) { uint64_t l2_pml4_addr = X86_SYZOS_ADDR_VM_PGTABLE(cpu_id, vm_id); uint64_t l2_pdpt_addr = l2_pml4_addr + KVM_PAGE_SIZE; uint64_t l2_pd_addr = l2_pml4_addr + 2 * KVM_PAGE_SIZE; uint64_t l2_pt_addr = l2_pml4_addr + 3 * KVM_PAGE_SIZE; volatile uint64_t* pml4 = (volatile uint64_t*)l2_pml4_addr; volatile uint64_t* pdpt = (volatile uint64_t*)l2_pdpt_addr; volatile uint64_t* pd = (volatile uint64_t*)l2_pd_addr; volatile uint64_t* pt = (volatile uint64_t*)l2_pt_addr; guest_memset((void*)l2_pml4_addr, 0, KVM_PAGE_SIZE); guest_memset((void*)l2_pdpt_addr, 0, KVM_PAGE_SIZE); guest_memset((void*)l2_pd_addr, 0, KVM_PAGE_SIZE); guest_memset((void*)l2_pt_addr, 0, KVM_PAGE_SIZE); guest_memset((void*)X86_SYZOS_ADDR_MSR_BITMAP(cpu_id, vm_id), 0, KVM_PAGE_SIZE); uint64_t flags = X86_PDE64_PRESENT | X86_PDE64_RW | X86_PDE64_USER; pml4[0] = l2_pdpt_addr | flags; pdpt[0] = l2_pd_addr | flags; pd[0] = l2_pt_addr | flags; uint64_t pt_flags = flags; if (vendor == CPU_VENDOR_INTEL) { pt_flags |= EPT_MEMTYPE_WB | EPT_ACCESSED | EPT_DIRTY; } else { pt_flags |= X86_PDE64_ACCESSED | X86_PDE64_DIRTY; } for (int i = 0; i < 512; i++) pt[i] = (i * KVM_PAGE_SIZE) | pt_flags; } GUEST_CODE static noinline void init_vmcs_control_fields(uint64_t cpu_id, uint64_t vm_id) { uint64_t vmx_msr = rdmsr(X86_MSR_IA32_VMX_TRUE_PINBASED_CTLS); vmwrite(VMCS_PIN_BASED_VM_EXEC_CONTROL, (uint32_t)vmx_msr); vmx_msr = (uint32_t)rdmsr(X86_MSR_IA32_VMX_PROCBASED_CTLS2); vmx_msr |= SECONDARY_EXEC_ENABLE_EPT | SECONDARY_EXEC_ENABLE_RDTSCP; vmwrite(VMCS_SECONDARY_VM_EXEC_CONTROL, vmx_msr); vmx_msr = rdmsr(X86_MSR_IA32_VMX_TRUE_PROCBASED_CTLS); vmx_msr |= CPU_BASED_ACTIVATE_SECONDARY_CONTROLS; vmx_msr |= CPU_BASED_HLT_EXITING | CPU_BASED_RDTSC_EXITING; vmwrite(VMCS_CPU_BASED_VM_EXEC_CONTROL, (uint32_t)vmx_msr); vmx_msr = rdmsr(X86_MSR_IA32_VMX_TRUE_EXIT_CTLS); vmwrite(VMCS_VM_EXIT_CONTROLS, (uint32_t)vmx_msr | VM_EXIT_HOST_ADDR_SPACE_SIZE); vmx_msr = rdmsr(X86_MSR_IA32_VMX_TRUE_ENTRY_CTLS); vmwrite(VMCS_VM_ENTRY_CONTROLS, (uint32_t)vmx_msr | VM_ENTRY_IA32E_MODE); uint64_t eptp = (X86_SYZOS_ADDR_VM_PGTABLE(cpu_id, vm_id) & ~0xFFF) | (6 << 0) | (3 << 3); vmwrite(VMCS_EPT_POINTER, eptp); vmwrite(VMCS_CR0_GUEST_HOST_MASK, 0); vmwrite(VMCS_CR4_GUEST_HOST_MASK, 0); vmwrite(VMCS_CR0_READ_SHADOW, read_cr0()); vmwrite(VMCS_CR4_READ_SHADOW, read_cr4()); vmwrite(VMCS_MSR_BITMAP, 0); vmwrite(VMCS_VMREAD_BITMAP, 0); vmwrite(VMCS_VMWRITE_BITMAP, 0); vmwrite(VMCS_EXCEPTION_BITMAP, (1 << 6)); vmwrite(VMCS_VIRTUAL_PROCESSOR_ID, 0); vmwrite(VMCS_POSTED_INTR_NV, 0); vmwrite(VMCS_PAGE_FAULT_ERROR_CODE_MASK, 0); vmwrite(VMCS_PAGE_FAULT_ERROR_CODE_MATCH, -1); vmwrite(VMCS_CR3_TARGET_COUNT, 0); vmwrite(VMCS_VM_EXIT_MSR_STORE_COUNT, 0); vmwrite(VMCS_VM_EXIT_MSR_LOAD_COUNT, 0); vmwrite(VMCS_VM_ENTRY_MSR_LOAD_COUNT, 0); vmwrite(VMCS_VM_ENTRY_INTR_INFO_FIELD, 0); vmwrite(VMCS_TPR_THRESHOLD, 0); } typedef enum { SYZOS_NESTED_EXIT_REASON_HLT = 1, SYZOS_NESTED_EXIT_REASON_INVD = 2, SYZOS_NESTED_EXIT_REASON_CPUID = 3, SYZOS_NESTED_EXIT_REASON_RDTSC = 4, SYZOS_NESTED_EXIT_REASON_RDTSCP = 5, SYZOS_NESTED_EXIT_REASON_UNKNOWN = 0xFF, } syz_nested_exit_reason; GUEST_CODE static void guest_uexit_l2(uint64_t exit_reason, syz_nested_exit_reason mapped_reason, cpu_vendor_id vendor) { if (mapped_reason != SYZOS_NESTED_EXIT_REASON_UNKNOWN) { guest_uexit(0xe2e20000 | mapped_reason); } else if (vendor == CPU_VENDOR_INTEL) { guest_uexit(0xe2110000 | exit_reason); } else { guest_uexit(0xe2aa0000 | exit_reason); } } #define EXIT_REASON_CPUID 0xa #define EXIT_REASON_HLT 0xc #define EXIT_REASON_INVD 0xd #define EXIT_REASON_RDTSC 0x10 #define EXIT_REASON_RDTSCP 0x33 GUEST_CODE static syz_nested_exit_reason map_intel_exit_reason(uint64_t basic_reason) { volatile uint64_t reason = basic_reason; if (reason == EXIT_REASON_HLT) return SYZOS_NESTED_EXIT_REASON_HLT; if (reason == EXIT_REASON_INVD) return SYZOS_NESTED_EXIT_REASON_INVD; if (reason == EXIT_REASON_CPUID) return SYZOS_NESTED_EXIT_REASON_CPUID; if (reason == EXIT_REASON_RDTSC) return SYZOS_NESTED_EXIT_REASON_RDTSC; if (reason == EXIT_REASON_RDTSCP) return SYZOS_NESTED_EXIT_REASON_RDTSCP; return SYZOS_NESTED_EXIT_REASON_UNKNOWN; } GUEST_CODE static void advance_l2_rip_intel(uint64_t basic_reason) { volatile uint64_t reason = basic_reason; uint64_t rip = vmread(VMCS_GUEST_RIP); if ((reason == EXIT_REASON_INVD) || (reason == EXIT_REASON_CPUID) || (reason == EXIT_REASON_RDTSC)) { rip += 2; } else if (reason == EXIT_REASON_RDTSCP) { rip += 3; } vmwrite(VMCS_GUEST_RIP, rip); } __attribute__((used)) GUEST_CODE static void nested_vm_exit_handler_intel(uint64_t exit_reason, struct l2_guest_regs* regs) { uint64_t basic_reason = exit_reason & 0xFFFF; syz_nested_exit_reason mapped_reason = map_intel_exit_reason(basic_reason); guest_uexit_l2(exit_reason, mapped_reason, CPU_VENDOR_INTEL); advance_l2_rip_intel(basic_reason); } extern char after_vmentry_label; __attribute__((naked)) GUEST_CODE static void nested_vm_exit_handler_intel_asm(void) { asm volatile(R"( push %%rax push %%rbx push %%rcx push %%rdx push %%rsi push %%rdi push %%rbp push %%r8 push %%r9 push %%r10 push %%r11 push %%r12 push %%r13 push %%r14 push %%r15 mov %%rsp, %%rsi mov %[vm_exit_reason], %%rbx vmread %%rbx, %%rdi call nested_vm_exit_handler_intel add %[stack_cleanup_size], %%rsp jmp after_vmentry_label )" : : [stack_cleanup_size] "i"(sizeof(struct l2_guest_regs)), [vm_exit_reason] "i"(VMCS_VM_EXIT_REASON) : "memory", "cc", "rbx", "rdi", "rsi"); } #define VMEXIT_RDTSC 0x6e #define VMEXIT_CPUID 0x72 #define VMEXIT_INVD 0x76 #define VMEXIT_HLT 0x78 #define VMEXIT_RDTSCP 0x87 GUEST_CODE static syz_nested_exit_reason map_amd_exit_reason(uint64_t basic_reason) { volatile uint64_t reason = basic_reason; if (reason == VMEXIT_HLT) return SYZOS_NESTED_EXIT_REASON_HLT; if (reason == VMEXIT_INVD) return SYZOS_NESTED_EXIT_REASON_INVD; if (reason == VMEXIT_CPUID) return SYZOS_NESTED_EXIT_REASON_CPUID; if (reason == VMEXIT_RDTSC) return SYZOS_NESTED_EXIT_REASON_RDTSC; if (reason == VMEXIT_RDTSCP) return SYZOS_NESTED_EXIT_REASON_RDTSCP; return SYZOS_NESTED_EXIT_REASON_UNKNOWN; } GUEST_CODE static void advance_l2_rip_amd(uint64_t basic_reason, uint64_t cpu_id, uint64_t vm_id) { volatile uint64_t reason = basic_reason; uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint64_t rip = vmcb_read64((volatile uint8_t*)vmcb_addr, VMCB_GUEST_RIP); if ((reason == VMEXIT_INVD) || (reason == VMEXIT_CPUID) || (reason == VMEXIT_RDTSC)) { rip += 2; } else if (reason == VMEXIT_RDTSCP) { rip += 3; } vmcb_write64(vmcb_addr, VMCB_GUEST_RIP, rip); } __attribute__((used)) GUEST_CODE static void nested_vm_exit_handler_amd(uint64_t exit_reason, uint64_t cpu_id, uint64_t vm_id) { volatile uint64_t basic_reason = exit_reason & 0xFFFF; syz_nested_exit_reason mapped_reason = map_amd_exit_reason(basic_reason); guest_uexit_l2(exit_reason, mapped_reason, CPU_VENDOR_AMD); advance_l2_rip_amd(basic_reason, cpu_id, vm_id); } GUEST_CODE static noinline void init_vmcs_host_state(void) { vmwrite(VMCS_HOST_CS_SELECTOR, X86_SYZOS_SEL_CODE); vmwrite(VMCS_HOST_DS_SELECTOR, X86_SYZOS_SEL_DATA); vmwrite(VMCS_HOST_ES_SELECTOR, X86_SYZOS_SEL_DATA); vmwrite(VMCS_HOST_SS_SELECTOR, X86_SYZOS_SEL_DATA); vmwrite(VMCS_HOST_FS_SELECTOR, X86_SYZOS_SEL_DATA); vmwrite(VMCS_HOST_GS_SELECTOR, X86_SYZOS_SEL_DATA); vmwrite(VMCS_HOST_TR_SELECTOR, X86_SYZOS_SEL_TSS64); vmwrite(VMCS_HOST_TR_BASE, 0); vmwrite(VMCS_HOST_GDTR_BASE, X86_SYZOS_ADDR_GDT); vmwrite(VMCS_HOST_IDTR_BASE, X86_SYZOS_ADDR_VAR_IDT); vmwrite(VMCS_HOST_FS_BASE, rdmsr(X86_MSR_FS_BASE)); vmwrite(VMCS_HOST_GS_BASE, rdmsr(X86_MSR_GS_BASE)); uint64_t tmpreg = 0; asm volatile("mov %%rsp, %0" : "=r"(tmpreg)); vmwrite(VMCS_HOST_RSP, tmpreg); vmwrite(VMCS_HOST_RIP, (uintptr_t)nested_vm_exit_handler_intel_asm); vmwrite(VMCS_HOST_CR0, read_cr0()); vmwrite(VMCS_HOST_CR3, read_cr3()); vmwrite(VMCS_HOST_CR4, read_cr4()); vmwrite(VMCS_HOST_IA32_PAT, rdmsr(X86_MSR_IA32_CR_PAT)); vmwrite(VMCS_HOST_IA32_EFER, rdmsr(X86_MSR_IA32_EFER)); vmwrite(VMCS_HOST_IA32_PERF_GLOBAL_CTRL, rdmsr(X86_MSR_CORE_PERF_GLOBAL_CTRL)); vmwrite(VMCS_HOST_IA32_SYSENTER_CS, rdmsr(X86_MSR_IA32_SYSENTER_CS)); vmwrite(VMCS_HOST_IA32_SYSENTER_ESP, rdmsr(X86_MSR_IA32_SYSENTER_ESP)); vmwrite(VMCS_HOST_IA32_SYSENTER_EIP, rdmsr(X86_MSR_IA32_SYSENTER_EIP)); } #define COPY_VMCS_FIELD(GUEST_FIELD,HOST_FIELD) vmwrite(GUEST_FIELD, vmread(HOST_FIELD)) #define SETUP_L2_SEGMENT(SEG,SELECTOR,BASE,LIMIT,AR) vmwrite(VMCS_GUEST_ ##SEG ##_SELECTOR, SELECTOR); vmwrite(VMCS_GUEST_ ##SEG ##_BASE, BASE); vmwrite(VMCS_GUEST_ ##SEG ##_LIMIT, LIMIT); vmwrite(VMCS_GUEST_ ##SEG ##_ACCESS_RIGHTS, AR); GUEST_CODE static noinline void init_vmcs_guest_state(uint64_t cpu_id, uint64_t vm_id) { uint64_t l2_code_addr = X86_SYZOS_ADDR_VM_CODE(cpu_id, vm_id); uint64_t l2_stack_addr = X86_SYZOS_ADDR_VM_STACK(cpu_id, vm_id); SETUP_L2_SEGMENT(CS, vmread(VMCS_HOST_CS_SELECTOR), 0, 0xFFFFFFFF, VMX_AR_64BIT_CODE); SETUP_L2_SEGMENT(DS, vmread(VMCS_HOST_DS_SELECTOR), 0, 0xFFFFFFFF, VMX_AR_64BIT_DATA_STACK); SETUP_L2_SEGMENT(ES, vmread(VMCS_HOST_ES_SELECTOR), 0, 0xFFFFFFFF, VMX_AR_64BIT_DATA_STACK); SETUP_L2_SEGMENT(SS, vmread(VMCS_HOST_SS_SELECTOR), 0, 0xFFFFFFFF, VMX_AR_64BIT_DATA_STACK); SETUP_L2_SEGMENT(FS, vmread(VMCS_HOST_FS_SELECTOR), vmread(VMCS_HOST_FS_BASE), 0xFFFFFFFF, VMX_AR_64BIT_DATA_STACK); SETUP_L2_SEGMENT(GS, vmread(VMCS_HOST_GS_SELECTOR), vmread(VMCS_HOST_GS_BASE), 0xFFFFFFFF, VMX_AR_64BIT_DATA_STACK); SETUP_L2_SEGMENT(TR, vmread(VMCS_HOST_TR_SELECTOR), vmread(VMCS_HOST_TR_BASE), 0x67, VMX_AR_TSS_BUSY); SETUP_L2_SEGMENT(LDTR, 0, 0, 0, VMX_AR_LDTR_UNUSABLE); vmwrite(VMCS_GUEST_CR0, vmread(VMCS_HOST_CR0)); vmwrite(VMCS_GUEST_CR3, vmread(VMCS_HOST_CR3)); vmwrite(VMCS_GUEST_CR4, vmread(VMCS_HOST_CR4)); vmwrite(VMCS_GUEST_RIP, l2_code_addr); vmwrite(VMCS_GUEST_RSP, l2_stack_addr + KVM_PAGE_SIZE - 8); vmwrite(VMCS_GUEST_RFLAGS, RFLAGS_1_BIT); vmwrite(VMCS_GUEST_DR7, 0x400); COPY_VMCS_FIELD(VMCS_GUEST_IA32_EFER, VMCS_HOST_IA32_EFER); COPY_VMCS_FIELD(VMCS_GUEST_IA32_PAT, VMCS_HOST_IA32_PAT); COPY_VMCS_FIELD(VMCS_GUEST_IA32_PERF_GLOBAL_CTRL, VMCS_HOST_IA32_PERF_GLOBAL_CTRL); COPY_VMCS_FIELD(VMCS_GUEST_SYSENTER_CS, VMCS_HOST_IA32_SYSENTER_CS); COPY_VMCS_FIELD(VMCS_GUEST_SYSENTER_ESP, VMCS_HOST_IA32_SYSENTER_ESP); COPY_VMCS_FIELD(VMCS_GUEST_SYSENTER_EIP, VMCS_HOST_IA32_SYSENTER_EIP); vmwrite(VMCS_GUEST_IA32_DEBUGCTL, 0); vmwrite(VMCS_GUEST_GDTR_BASE, vmread(VMCS_HOST_GDTR_BASE)); vmwrite(VMCS_GUEST_GDTR_LIMIT, 0xffff); vmwrite(VMCS_GUEST_IDTR_BASE, vmread(VMCS_HOST_IDTR_BASE)); vmwrite(VMCS_GUEST_IDTR_LIMIT, 0xffff); vmwrite(VMCS_LINK_POINTER, 0xffffffffffffffff); vmwrite(VMCS_GUEST_ACTIVITY_STATE, 0); vmwrite(VMCS_GUEST_INTERRUPTIBILITY_INFO, 0); vmwrite(VMCS_GUEST_PENDING_DBG_EXCEPTIONS, 0); vmwrite(VMCS_VMX_PREEMPTION_TIMER_VALUE, 0); vmwrite(VMCS_GUEST_INTR_STATUS, 0); vmwrite(VMCS_GUEST_PML_INDEX, 0); } GUEST_CODE static noinline void nested_create_vm_intel(struct api_call_1* cmd, uint64_t cpu_id) { uint64_t vm_id = cmd->arg; uint64_t vmcs_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint8_t error = 0; *(uint32_t*)vmcs_addr = rdmsr(X86_MSR_IA32_VMX_BASIC); asm volatile("vmclear %1; setna %0" : "=q"(error) : "m"(vmcs_addr) : "memory", "cc"); if (error) { guest_uexit(0xE2BAD1); return; } nested_vmptrld(cpu_id, vm_id); setup_l2_page_tables(CPU_VENDOR_INTEL, cpu_id, vm_id); init_vmcs_control_fields(cpu_id, vm_id); init_vmcs_host_state(); init_vmcs_guest_state(cpu_id, vm_id); } #define SETUP_L2_SEGMENT_SVM(VMBC_PTR,SEG_NAME,SELECTOR,BASE,LIMIT,ATTR) vmcb_write16(VMBC_PTR, VMCB_GUEST_ ##SEG_NAME ##_SEL, SELECTOR); vmcb_write16(VMBC_PTR, VMCB_GUEST_ ##SEG_NAME ##_ATTR, ATTR); vmcb_write32(VMBC_PTR, VMCB_GUEST_ ##SEG_NAME ##_LIM, LIMIT); vmcb_write64(VMBC_PTR, VMCB_GUEST_ ##SEG_NAME ##_BASE, BASE); GUEST_CODE static noinline void init_vmcb_guest_state(uint64_t cpu_id, uint64_t vm_id) { uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint64_t l2_code_addr = X86_SYZOS_ADDR_VM_CODE(cpu_id, vm_id); uint64_t l2_stack_addr = X86_SYZOS_ADDR_VM_STACK(cpu_id, vm_id); uint64_t npt_pml4_addr = X86_SYZOS_ADDR_VM_PGTABLE(cpu_id, vm_id); SETUP_L2_SEGMENT_SVM(vmcb_addr, CS, X86_SYZOS_SEL_CODE, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_CODE); SETUP_L2_SEGMENT_SVM(vmcb_addr, DS, X86_SYZOS_SEL_DATA, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_DATA); SETUP_L2_SEGMENT_SVM(vmcb_addr, ES, X86_SYZOS_SEL_DATA, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_DATA); SETUP_L2_SEGMENT_SVM(vmcb_addr, SS, X86_SYZOS_SEL_DATA, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_DATA); SETUP_L2_SEGMENT_SVM(vmcb_addr, FS, X86_SYZOS_SEL_DATA, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_DATA); SETUP_L2_SEGMENT_SVM(vmcb_addr, GS, X86_SYZOS_SEL_DATA, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_DATA); SETUP_L2_SEGMENT_SVM(vmcb_addr, TR, X86_SYZOS_SEL_TSS64, X86_SYZOS_ADDR_VAR_TSS, 0x67, VMX_AR_TSS_AVAILABLE); SETUP_L2_SEGMENT_SVM(vmcb_addr, LDTR, 0, 0, 0, SVM_ATTR_LDTR_UNUSABLE); uint64_t efer = rdmsr(X86_MSR_IA32_EFER); vmcb_write64(vmcb_addr, VMCB_GUEST_CR0, read_cr0() | X86_CR0_WP); vmcb_write64(vmcb_addr, VMCB_GUEST_CR3, read_cr3()); vmcb_write64(vmcb_addr, VMCB_GUEST_CR4, read_cr4()); vmcb_write64(vmcb_addr, VMCB_GUEST_RIP, l2_code_addr); vmcb_write64(vmcb_addr, VMCB_GUEST_RSP, l2_stack_addr + KVM_PAGE_SIZE - 8); vmcb_write64(vmcb_addr, VMCB_GUEST_RFLAGS, RFLAGS_1_BIT); vmcb_write64(vmcb_addr, VMCB_GUEST_DEBUGCTL, 0); vmcb_write64(vmcb_addr, VMCB_GUEST_DR6, 0x0); vmcb_write64(vmcb_addr, VMCB_GUEST_DR7, 0x0); vmcb_write64(vmcb_addr, VMCB_GUEST_EFER, efer & ~X86_EFER_SCE); vmcb_write64(vmcb_addr, VMCB_GUEST_PAT, rdmsr(X86_MSR_IA32_CR_PAT)); struct { uint16_t limit; uint64_t base; } __attribute__((packed)) gdtr, idtr; asm volatile("sgdt %0" : "=m"(gdtr)); asm volatile("sidt %0" : "=m"(idtr)); vmcb_write64(vmcb_addr, VMCB_GUEST_GDTR_BASE, gdtr.base); vmcb_write32(vmcb_addr, VMCB_GUEST_GDTR_LIM, gdtr.limit); vmcb_write64(vmcb_addr, VMCB_GUEST_IDTR_BASE, idtr.base); vmcb_write32(vmcb_addr, VMCB_GUEST_IDTR_LIM, idtr.limit); vmcb_write32(vmcb_addr, VMCB_CTRL_INTERCEPT_VEC3, VMCB_CTRL_INTERCEPT_VEC3_ALL); vmcb_write32(vmcb_addr, VMCB_CTRL_INTERCEPT_VEC4, VMCB_CTRL_INTERCEPT_VEC4_ALL); vmcb_write64(vmcb_addr, VMCB_CTRL_NP_ENABLE, (1 << VMCB_CTRL_NPT_ENABLE_BIT)); uint64_t npt_pointer = (npt_pml4_addr & ~0xFFF); vmcb_write64(vmcb_addr, VMCB_CTRL_N_CR3, npt_pointer); vmcb_write32(vmcb_addr, VMCB_CTRL_ASID, 1); } GUEST_CODE static noinline void nested_create_vm_amd(struct api_call_1* cmd, uint64_t cpu_id) { uint64_t vm_id = cmd->arg; uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); guest_memset((void*)vmcb_addr, 0, KVM_PAGE_SIZE); guest_memset((void*)X86_SYZOS_ADDR_VM_ARCH_SPECIFIC(cpu_id), 0, KVM_PAGE_SIZE); setup_l2_page_tables(CPU_VENDOR_AMD, cpu_id, vm_id); init_vmcb_guest_state(cpu_id, vm_id); } GUEST_CODE static noinline void guest_handle_nested_create_vm(struct api_call_1* cmd, uint64_t cpu_id) { if (get_cpu_vendor() == CPU_VENDOR_INTEL) { nested_create_vm_intel(cmd, cpu_id); } else { nested_create_vm_amd(cmd, cpu_id); } } GUEST_CODE static noinline void guest_handle_nested_load_code(struct api_call_nested_load_code* cmd, uint64_t cpu_id) { uint64_t vm_id = cmd->vm_id; uint64_t l2_code_addr = X86_SYZOS_ADDR_VM_CODE(cpu_id, vm_id); uint64_t l2_stack_addr = X86_SYZOS_ADDR_VM_STACK(cpu_id, vm_id); uint64_t l2_code_size = cmd->header.size - sizeof(struct api_call_header) - sizeof(uint64_t); if (l2_code_size > KVM_PAGE_SIZE) l2_code_size = KVM_PAGE_SIZE; guest_memcpy((void*)l2_code_addr, (void*)cmd->insns, l2_code_size); if (get_cpu_vendor() == CPU_VENDOR_INTEL) { nested_vmptrld(cpu_id, vm_id); vmwrite(VMCS_GUEST_RIP, l2_code_addr); vmwrite(VMCS_GUEST_RSP, l2_stack_addr + KVM_PAGE_SIZE - 8); } else { vmcb_write64(X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id), VMCB_GUEST_RIP, l2_code_addr); vmcb_write64(X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id), VMCB_GUEST_RSP, l2_stack_addr + KVM_PAGE_SIZE - 8); } } GUEST_CODE static noinline __optnone void guest_handle_nested_vmentry_intel(uint64_t vm_id, uint64_t cpu_id, bool is_launch) { uint64_t vmx_error_code = 0; uint8_t fail_flag = 0; nested_vmptrld(cpu_id, vm_id); if (is_launch) { asm volatile(R"( vmlaunch setc %%al setz %%bl or %%bl, %%al)" : "=a"(fail_flag) : : "rbx", "cc", "memory"); } else { asm volatile(R"( vmresume setc %%al setz %%bl or %%bl, %%al)" : "=a"(fail_flag) : : "rbx", "cc", "memory"); } asm volatile(".globl after_vmentry_label\nafter_vmentry_label:"); if (fail_flag) { vmx_error_code = vmread(VMCS_VM_INSTRUCTION_ERROR); guest_uexit(0xE2E10000 | (uint32_t)vmx_error_code); return; } } GUEST_CODE static noinline void guest_run_amd_vm(uint64_t cpu_id, uint64_t vm_id) { uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); volatile uint8_t* vmcb_ptr = (volatile uint8_t*)vmcb_addr; uint8_t fail_flag = 0; asm volatile( "mov %1, %%rax\n\t" "vmrun\n\t" "setc %0\n\t" : "=q"(fail_flag) : "m"(vmcb_addr) : "rax", "cc", "memory"); if (fail_flag) { guest_uexit(0xE2E10000 | 0xFFFF); return; } uint64_t exit_reason = vmcb_read64(vmcb_ptr, VMCB_EXIT_CODE); nested_vm_exit_handler_amd(exit_reason, cpu_id, vm_id); } GUEST_CODE static noinline void guest_handle_nested_vmlaunch(struct api_call_1* cmd, uint64_t cpu_id) { uint64_t vm_id = cmd->arg; if (get_cpu_vendor() == CPU_VENDOR_INTEL) { guest_handle_nested_vmentry_intel(vm_id, cpu_id, true); } else { guest_run_amd_vm(cpu_id, vm_id); } } GUEST_CODE static noinline void guest_handle_nested_vmresume(struct api_call_1* cmd, uint64_t cpu_id) { uint64_t vm_id = cmd->arg; if (get_cpu_vendor() == CPU_VENDOR_INTEL) { guest_handle_nested_vmentry_intel(vm_id, cpu_id, false); } else { guest_run_amd_vm(cpu_id, vm_id); } } GUEST_CODE static noinline void guest_handle_nested_intel_vmwrite_mask(struct api_call_5* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_INTEL) return; uint64_t vm_id = cmd->args[0]; nested_vmptrld(cpu_id, vm_id); uint64_t field = cmd->args[1]; uint64_t set_mask = cmd->args[2]; uint64_t unset_mask = cmd->args[3]; uint64_t flip_mask = cmd->args[4]; uint64_t current_value = vmread(field); uint64_t new_value = (current_value & ~unset_mask) | set_mask; new_value ^= flip_mask; vmwrite(field, new_value); } GUEST_CODE static noinline void guest_handle_nested_amd_vmcb_write_mask(struct api_call_5* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t vm_id = cmd->args[0]; uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint64_t offset = cmd->args[1]; uint64_t set_mask = cmd->args[2]; uint64_t unset_mask = cmd->args[3]; uint64_t flip_mask = cmd->args[4]; uint64_t current_value = vmcb_read64((volatile uint8_t*)vmcb_addr, offset); uint64_t new_value = (current_value & ~unset_mask) | set_mask; new_value ^= flip_mask; vmcb_write64(vmcb_addr, offset, new_value); } GUEST_CODE static noinline void guest_handle_nested_amd_invlpga(struct api_call_2* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t linear_addr = cmd->args[0]; uint32_t asid = (uint32_t)cmd->args[1]; asm volatile("invlpga" : : "a"(linear_addr), "c"(asid) : "memory"); } GUEST_CODE static noinline void guest_handle_nested_amd_stgi() { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; asm volatile("stgi" ::: "memory"); } GUEST_CODE static noinline void guest_handle_nested_amd_clgi() { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; asm volatile("clgi" ::: "memory"); } GUEST_CODE static noinline void guest_handle_nested_amd_inject_event(struct api_call_5* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t vm_id = cmd->args[0]; uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint64_t vector = cmd->args[1] & 0xFF; uint64_t type = cmd->args[2] & 0x7; uint64_t error_code = cmd->args[3] & 0xFFFFFFFF; uint64_t flags = cmd->args[4]; uint64_t event_inj = vector; event_inj |= (type << 8); if (flags & 2) event_inj |= (1ULL << 11); if (flags & 1) event_inj |= (1ULL << 31); event_inj |= (error_code << 32); vmcb_write64(vmcb_addr, 0x60, event_inj); } GUEST_CODE static noinline void guest_handle_nested_amd_set_intercept(struct api_call_5* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t vm_id = cmd->args[0]; uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint64_t offset = cmd->args[1]; uint64_t bit_mask = cmd->args[2]; uint64_t action = cmd->args[3]; uint32_t current = vmcb_read32(vmcb_addr, (uint16_t)offset); if (action == 1) current |= (uint32_t)bit_mask; else current &= ~((uint32_t)bit_mask); vmcb_write32(vmcb_addr, (uint16_t)offset, current); } GUEST_CODE static noinline void guest_handle_nested_amd_vmload(struct api_call_1* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t vm_id = cmd->arg; uint64_t vmcb_pa = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); asm volatile("vmload %%rax" ::"a"(vmcb_pa) : "memory"); } GUEST_CODE static noinline void guest_handle_nested_amd_vmsave(struct api_call_1* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t vm_id = cmd->arg; uint64_t vmcb_pa = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); asm volatile("vmsave %%rax" ::"a"(vmcb_pa) : "memory"); } const char kvm_asm16_cpl3[] = "\x0f\x20\xc0\x66\x83\xc8\x01\x0f\x22\xc0\xb8\xa0\x00\x0f\x00\xd8\xb8\x2b\x00\x8e\xd8\x8e\xc0\x8e\xe0\x8e\xe8\xbc\x00\x01\xc7\x06\x00\x01\x1d\xba\xc7\x06\x02\x01\x23\x00\xc7\x06\x04\x01\x00\x01\xc7\x06\x06\x01\x2b\x00\xcb"; const char kvm_asm32_paged[] = "\x0f\x20\xc0\x0d\x00\x00\x00\x80\x0f\x22\xc0"; const char kvm_asm32_vm86[] = "\x66\xb8\xb8\x00\x0f\x00\xd8\xea\x00\x00\x00\x00\xd0\x00"; const char kvm_asm32_paged_vm86[] = "\x0f\x20\xc0\x0d\x00\x00\x00\x80\x0f\x22\xc0\x66\xb8\xb8\x00\x0f\x00\xd8\xea\x00\x00\x00\x00\xd0\x00"; const char kvm_asm64_enable_long[] = "\x0f\x20\xc0\x0d\x00\x00\x00\x80\x0f\x22\xc0\xea\xde\xc0\xad\x0b\x50\x00\x48\xc7\xc0\xd8\x00\x00\x00\x0f\x00\xd8"; const char kvm_asm64_init_vm[] = 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const char kvm_asm64_vm_exit[] = "\x48\xc7\xc3\x00\x44\x00\x00\x0f\x78\xda\x48\xc7\xc3\x02\x44\x00\x00\x0f\x78\xd9\x48\xc7\xc0\x00\x64\x00\x00\x0f\x78\xc0\x48\xc7\xc3\x1e\x68\x00\x00\x0f\x78\xdb\xf4"; const char kvm_asm64_cpl3[] = "\x0f\x20\xc0\x0d\x00\x00\x00\x80\x0f\x22\xc0\xea\xde\xc0\xad\x0b\x50\x00\x48\xc7\xc0\xd8\x00\x00\x00\x0f\x00\xd8\x48\xc7\xc0\x6b\x00\x00\x00\x8e\xd8\x8e\xc0\x8e\xe0\x8e\xe8\x48\xc7\xc4\x80\x0f\x00\x00\x48\xc7\x04\x24\x1d\xba\x00\x00\x48\xc7\x44\x24\x04\x63\x00\x00\x00\x48\xc7\x44\x24\x08\x80\x0f\x00\x00\x48\xc7\x44\x24\x0c\x6b\x00\x00\x00\xcb"; #define KVM_SMI _IO(KVMIO, 0xb7) struct tss16 { uint16_t prev; uint16_t sp0; uint16_t ss0; uint16_t sp1; uint16_t ss1; uint16_t sp2; uint16_t ss2; uint16_t ip; uint16_t flags; uint16_t ax; uint16_t cx; uint16_t dx; uint16_t bx; uint16_t sp; uint16_t bp; uint16_t si; uint16_t di; uint16_t es; uint16_t cs; uint16_t ss; uint16_t ds; uint16_t ldt; } __attribute__((packed)); struct tss32 { uint16_t prev, prevh; uint32_t sp0; uint16_t ss0, ss0h; uint32_t sp1; uint16_t ss1, ss1h; uint32_t sp2; uint16_t ss2, ss2h; uint32_t cr3; uint32_t ip; uint32_t flags; uint32_t ax; uint32_t cx; uint32_t dx; uint32_t bx; uint32_t sp; uint32_t bp; uint32_t si; uint32_t di; uint16_t es, esh; uint16_t cs, csh; uint16_t ss, ssh; uint16_t ds, dsh; uint16_t fs, fsh; uint16_t gs, gsh; uint16_t ldt, ldth; uint16_t trace; uint16_t io_bitmap; } __attribute__((packed)); struct tss64 { uint32_t reserved0; uint64_t rsp[3]; uint64_t reserved1; uint64_t ist[7]; uint64_t reserved2; uint16_t reserved3; uint16_t io_bitmap; } __attribute__((packed)); static void fill_segment_descriptor(uint64_t* dt, uint64_t* lt, struct kvm_segment* seg) { uint16_t index = seg->selector >> 3; uint64_t limit = seg->g ? seg->limit >> 12 : seg->limit; uint64_t sd = (limit & 0xffff) | (seg->base & 0xffffff) << 16 | (uint64_t)seg->type << 40 | (uint64_t)seg->s << 44 | (uint64_t)seg->dpl << 45 | (uint64_t)seg->present << 47 | (limit & 0xf0000ULL) << 48 | (uint64_t)seg->avl << 52 | (uint64_t)seg->l << 53 | (uint64_t)seg->db << 54 | (uint64_t)seg->g << 55 | (seg->base & 0xff000000ULL) << 56; dt[index] = sd; lt[index] = sd; } static void fill_segment_descriptor_dword(uint64_t* dt, uint64_t* lt, struct kvm_segment* seg) { fill_segment_descriptor(dt, lt, seg); uint16_t index = seg->selector >> 3; dt[index + 1] = 0; lt[index + 1] = 0; } static void setup_syscall_msrs(int cpufd, uint16_t sel_cs, uint16_t sel_cs_cpl3) { char buf[sizeof(struct kvm_msrs) + 5 * sizeof(struct kvm_msr_entry)]; memset(buf, 0, sizeof(buf)); struct kvm_msrs* msrs = (struct kvm_msrs*)buf; struct kvm_msr_entry* entries = msrs->entries; msrs->nmsrs = 5; entries[0].index = X86_MSR_IA32_SYSENTER_CS; entries[0].data = sel_cs; entries[1].index = X86_MSR_IA32_SYSENTER_ESP; entries[1].data = X86_ADDR_STACK0; entries[2].index = X86_MSR_IA32_SYSENTER_EIP; entries[2].data = X86_ADDR_VAR_SYSEXIT; entries[3].index = X86_MSR_IA32_STAR; entries[3].data = ((uint64_t)sel_cs << 32) | ((uint64_t)sel_cs_cpl3 << 48); entries[4].index = X86_MSR_IA32_LSTAR; entries[4].data = X86_ADDR_VAR_SYSRET; ioctl(cpufd, KVM_SET_MSRS, msrs); } static void setup_32bit_idt(struct kvm_sregs* sregs, char* host_mem, uintptr_t guest_mem) { sregs->idt.base = guest_mem + X86_ADDR_VAR_IDT; sregs->idt.limit = 0x1ff; uint64_t* idt = (uint64_t*)(host_mem + sregs->idt.base); for (int i = 0; i < 32; i++) { struct kvm_segment gate; gate.selector = i << 3; switch (i % 6) { case 0: gate.type = 6; gate.base = X86_SEL_CS16; break; case 1: gate.type = 7; gate.base = X86_SEL_CS16; break; case 2: gate.type = 3; gate.base = X86_SEL_TGATE16; break; case 3: gate.type = 14; gate.base = X86_SEL_CS32; break; case 4: gate.type = 15; gate.base = X86_SEL_CS32; break; case 5: gate.type = 11; gate.base = X86_SEL_TGATE32; break; } gate.limit = guest_mem + X86_ADDR_VAR_USER_CODE2; gate.present = 1; gate.dpl = 0; gate.s = 0; gate.g = 0; gate.db = 0; gate.l = 0; gate.avl = 0; fill_segment_descriptor(idt, idt, &gate); } } static void setup_64bit_idt(struct kvm_sregs* sregs, char* host_mem, uintptr_t guest_mem) { sregs->idt.base = guest_mem + X86_ADDR_VAR_IDT; sregs->idt.limit = 0x1ff; uint64_t* idt = (uint64_t*)(host_mem + sregs->idt.base); for (int i = 0; i < 32; i++) { struct kvm_segment gate; gate.selector = (i * 2) << 3; gate.type = (i & 1) ? 14 : 15; gate.base = X86_SEL_CS64; gate.limit = guest_mem + X86_ADDR_VAR_USER_CODE2; gate.present = 1; gate.dpl = 0; gate.s = 0; gate.g = 0; gate.db = 0; gate.l = 0; gate.avl = 0; fill_segment_descriptor_dword(idt, idt, &gate); } } #define MEM_REGION_FLAG_USER_CODE (1 << 0) #define MEM_REGION_FLAG_DIRTY_LOG (1 << 1) #define MEM_REGION_FLAG_READONLY (1 << 2) #define MEM_REGION_FLAG_EXECUTOR_CODE (1 << 3) #define MEM_REGION_FLAG_GPA0 (1 << 5) #define MEM_REGION_FLAG_NO_HOST_MEM (1 << 6) struct mem_region { uint64_t gpa; int pages; uint32_t flags; }; static const struct mem_region syzos_mem_regions[] = { {X86_SYZOS_ADDR_ZERO, 48, MEM_REGION_FLAG_GPA0}, {X86_SYZOS_ADDR_SMRAM, 10, 0}, {X86_SYZOS_ADDR_EXIT, 1, MEM_REGION_FLAG_NO_HOST_MEM}, {X86_SYZOS_ADDR_DIRTY_PAGES, 2, MEM_REGION_FLAG_DIRTY_LOG}, {X86_SYZOS_ADDR_USER_CODE, KVM_MAX_VCPU, MEM_REGION_FLAG_READONLY | MEM_REGION_FLAG_USER_CODE}, {SYZOS_ADDR_EXECUTOR_CODE, 4, MEM_REGION_FLAG_READONLY | MEM_REGION_FLAG_EXECUTOR_CODE}, {X86_SYZOS_ADDR_SCRATCH_CODE, 1, 0}, {X86_SYZOS_ADDR_STACK_BOTTOM, 1, 0}, {X86_SYZOS_PER_VCPU_REGIONS_BASE, (KVM_MAX_VCPU * X86_SYZOS_L1_VCPU_REGION_SIZE) / KVM_PAGE_SIZE, 0}, {X86_SYZOS_ADDR_IOAPIC, 1, 0}, }; struct kvm_syz_vm { int vmfd; int next_cpu_id; void* host_mem; size_t total_pages; void* user_text; void* gpa0_mem; }; #define X86_NUM_IDT_ENTRIES 256 static void syzos_setup_idt(struct kvm_syz_vm* vm, struct kvm_sregs* sregs) { sregs->idt.base = X86_SYZOS_ADDR_VAR_IDT; sregs->idt.limit = (X86_NUM_IDT_ENTRIES * sizeof(struct idt_entry_64)) - 1; volatile struct idt_entry_64* idt = (volatile struct idt_entry_64*)((uint64_t)vm->host_mem + sregs->idt.base); uint64_t handler_addr = executor_fn_guest_addr(dummy_null_handler); for (int i = 0; i < X86_NUM_IDT_ENTRIES; i++) { idt[i].offset_low = (uint16_t)(handler_addr & 0xFFFF); idt[i].selector = X86_SYZOS_SEL_CODE; idt[i].ist = 0; idt[i].type_attr = 0x8E; idt[i].offset_mid = (uint16_t)((handler_addr >> 16) & 0xFFFF); idt[i].offset_high = (uint32_t)((handler_addr >> 32) & 0xFFFFFFFF); idt[i].reserved = 0; } } struct kvm_text { uintptr_t typ; const void* text; uintptr_t size; }; struct kvm_opt { uint64_t typ; uint64_t val; }; #define PAGE_MASK GENMASK_ULL(51, 12) typedef struct { uint64_t next_page; uint64_t last_page; } page_alloc_t; static uint64_t pg_alloc(page_alloc_t* alloc) { if (alloc->next_page >= alloc->last_page) exit(1); uint64_t page = alloc->next_page; alloc->next_page += KVM_PAGE_SIZE; return page; } static void map_4k_page(uint64_t host_mem, page_alloc_t* alloc, uint64_t gpa) { uint64_t* pml4 = (uint64_t*)(host_mem + X86_SYZOS_ADDR_PML4); uint64_t pml4_idx = (gpa >> 39) & 0x1FF; if (pml4[pml4_idx] == 0) pml4[pml4_idx] = X86_PDE64_PRESENT | X86_PDE64_RW | pg_alloc(alloc); uint64_t* pdpt = (uint64_t*)(host_mem + (pml4[pml4_idx] & PAGE_MASK)); uint64_t pdpt_idx = (gpa >> 30) & 0x1FF; if (pdpt[pdpt_idx] == 0) pdpt[pdpt_idx] = X86_PDE64_PRESENT | X86_PDE64_RW | pg_alloc(alloc); uint64_t* pd = (uint64_t*)(host_mem + (pdpt[pdpt_idx] & PAGE_MASK)); uint64_t pd_idx = (gpa >> 21) & 0x1FF; if (pd[pd_idx] == 0) pd[pd_idx] = X86_PDE64_PRESENT | X86_PDE64_RW | pg_alloc(alloc); uint64_t* pt = (uint64_t*)(host_mem + (pd[pd_idx] & PAGE_MASK)); uint64_t pt_idx = (gpa >> 12) & 0x1FF; pt[pt_idx] = (gpa & PAGE_MASK) | X86_PDE64_PRESENT | X86_PDE64_RW; } static int map_4k_region(uint64_t host_mem, page_alloc_t* alloc, uint64_t gpa_start, int num_pages) { for (int i = 0; i < num_pages; i++) map_4k_page(host_mem, alloc, gpa_start + (i * KVM_PAGE_SIZE)); return num_pages; } static void setup_pg_table(struct kvm_syz_vm* vm) { int total = vm->total_pages; uint64_t host_mem = (uint64_t)vm->gpa0_mem; page_alloc_t alloc = {.next_page = X86_SYZOS_ADDR_PT_POOL, .last_page = X86_SYZOS_ADDR_PT_POOL + 32 * KVM_PAGE_SIZE}; for (uint64_t i = 0; i < (alloc.last_page - alloc.next_page); i += KVM_PAGE_SIZE) memset((void*)(host_mem + alloc.next_page + i), 0, KVM_PAGE_SIZE); for (size_t i = 0; i < sizeof(syzos_mem_regions) / sizeof(syzos_mem_regions[0]); i++) total -= map_4k_region(host_mem, &alloc, syzos_mem_regions[i].gpa, syzos_mem_regions[i].pages); map_4k_region(host_mem, &alloc, X86_SYZOS_ADDR_UNUSED, total); } struct gdt_entry { uint16_t limit_low; uint16_t base_low; uint8_t base_mid; uint8_t access; uint8_t limit_high_and_flags; uint8_t base_high; } __attribute__((packed)); static void setup_gdt_64(struct gdt_entry* gdt) { gdt[0] = (struct gdt_entry){0}; gdt[X86_SYZOS_SEL_CODE >> 3] = (struct gdt_entry){ .limit_low = 0xFFFF, .base_low = 0, .base_mid = 0, .access = 0x9A, .limit_high_and_flags = 0xAF, .base_high = 0}; gdt[X86_SYZOS_SEL_DATA >> 3] = (struct gdt_entry){ .limit_low = 0xFFFF, .base_low = (uint16_t)(X86_SYZOS_ADDR_VAR_TSS & 0xFFFF), .base_mid = (uint8_t)((X86_SYZOS_ADDR_VAR_TSS >> 16) & 0xFF), .access = 0x92, .limit_high_and_flags = 0xCF, .base_high = (uint8_t)((X86_SYZOS_ADDR_VAR_TSS >> 24) & 0xFF)}; gdt[X86_SYZOS_SEL_TSS64 >> 3] = (struct gdt_entry){ .limit_low = 0x67, .base_low = 0, .base_mid = 0, .access = 0x89, .limit_high_and_flags = 0x00, .base_high = 0}; } static void setup_gdt_ldt_pg(struct kvm_syz_vm* vm, int cpufd) { struct kvm_sregs sregs; ioctl(cpufd, KVM_GET_SREGS, &sregs); sregs.gdt.base = X86_SYZOS_ADDR_GDT; sregs.gdt.limit = 5 * sizeof(struct gdt_entry) - 1; struct gdt_entry* gdt = (struct gdt_entry*)((uint64_t)vm->host_mem + sregs.gdt.base); struct kvm_segment seg_cs64; memset(&seg_cs64, 0, sizeof(seg_cs64)); seg_cs64.selector = X86_SYZOS_SEL_CODE; seg_cs64.type = 11; seg_cs64.base = 0; seg_cs64.limit = 0xFFFFFFFFu; seg_cs64.present = 1; seg_cs64.s = 1; seg_cs64.g = 1; seg_cs64.l = 1; sregs.cs = seg_cs64; struct kvm_segment seg_ds64; memset(&seg_ds64, 0, sizeof(struct kvm_segment)); seg_ds64.selector = X86_SYZOS_SEL_DATA; seg_ds64.type = 3; seg_ds64.limit = 0xFFFFFFFFu; seg_ds64.present = 1; seg_ds64.s = 1; seg_ds64.g = 1; seg_ds64.db = 1; sregs.ds = seg_ds64; sregs.es = seg_ds64; sregs.fs = seg_ds64; sregs.gs = seg_ds64; sregs.ss = seg_ds64; struct kvm_segment seg_tr; memset(&seg_tr, 0, sizeof(seg_tr)); seg_tr.selector = X86_SYZOS_SEL_TSS64; seg_tr.type = 11; seg_tr.base = X86_SYZOS_ADDR_VAR_TSS; seg_tr.limit = 0x67; seg_tr.present = 1; seg_tr.s = 0; sregs.tr = seg_tr; volatile uint8_t* l1_tss = (volatile uint8_t*)((uint64_t)vm->host_mem + X86_SYZOS_ADDR_VAR_TSS); memset((void*)l1_tss, 0, 104); *(volatile uint64_t*)(l1_tss + 4) = X86_SYZOS_ADDR_STACK0; setup_gdt_64(gdt); syzos_setup_idt(vm, &sregs); setup_pg_table(vm); sregs.cr0 = X86_CR0_PE | X86_CR0_NE | X86_CR0_PG; sregs.cr4 |= X86_CR4_PAE | X86_CR4_OSFXSR; sregs.efer |= (X86_EFER_LME | X86_EFER_LMA | X86_EFER_NXE); sregs.cr3 = X86_ADDR_PML4; ioctl(cpufd, KVM_SET_SREGS, &sregs); } static void setup_cpuid(int cpufd) { int kvmfd = open("/dev/kvm", O_RDWR); char buf[sizeof(struct kvm_cpuid2) + 128 * sizeof(struct kvm_cpuid_entry2)]; memset(buf, 0, sizeof(buf)); struct kvm_cpuid2* cpuid = (struct kvm_cpuid2*)buf; cpuid->nent = 128; ioctl(kvmfd, KVM_GET_SUPPORTED_CPUID, cpuid); ioctl(cpufd, KVM_SET_CPUID2, cpuid); close(kvmfd); } #define KVM_SETUP_PAGING (1 << 0) #define KVM_SETUP_PAE (1 << 1) #define KVM_SETUP_PROTECTED (1 << 2) #define KVM_SETUP_CPL3 (1 << 3) #define KVM_SETUP_VIRT86 (1 << 4) #define KVM_SETUP_SMM (1 << 5) #define KVM_SETUP_VM (1 << 6) static volatile long syz_kvm_setup_cpu(volatile long a0, volatile long a1, volatile long a2, volatile long a3, volatile long a4, volatile long a5, volatile long a6, volatile long a7) { const int vmfd = a0; const int cpufd = a1; char* const host_mem = (char*)a2; const struct kvm_text* const text_array_ptr = (struct kvm_text*)a3; const uintptr_t text_count = a4; const uintptr_t flags = a5; const struct kvm_opt* const opt_array_ptr = (struct kvm_opt*)a6; uintptr_t opt_count = a7; const uintptr_t page_size = 4 << 10; const uintptr_t ioapic_page = 10; const uintptr_t guest_mem_size = 24 * page_size; const uintptr_t guest_mem = 0; (void)text_count; int text_type = text_array_ptr[0].typ; const void* text = text_array_ptr[0].text; uintptr_t text_size = text_array_ptr[0].size; for (uintptr_t i = 0; i < guest_mem_size / page_size; i++) { struct kvm_userspace_memory_region memreg; memreg.slot = i; memreg.flags = 0; memreg.guest_phys_addr = guest_mem + i * page_size; if (i == ioapic_page) memreg.guest_phys_addr = 0xfec00000; memreg.memory_size = page_size; memreg.userspace_addr = (uintptr_t)host_mem + i * page_size; ioctl(vmfd, KVM_SET_USER_MEMORY_REGION, &memreg); } struct kvm_userspace_memory_region memreg; memreg.slot = 1 + (1 << 16); memreg.flags = 0; memreg.guest_phys_addr = 0x30000; memreg.memory_size = 64 << 10; memreg.userspace_addr = (uintptr_t)host_mem; ioctl(vmfd, KVM_SET_USER_MEMORY_REGION, &memreg); struct kvm_sregs sregs; if (ioctl(cpufd, KVM_GET_SREGS, &sregs)) return -1; struct kvm_regs regs; memset(®s, 0, sizeof(regs)); regs.rip = guest_mem + X86_ADDR_TEXT; regs.rsp = X86_ADDR_STACK0; sregs.gdt.base = guest_mem + X86_ADDR_GDT; sregs.gdt.limit = 256 * sizeof(uint64_t) - 1; uint64_t* gdt = (uint64_t*)(host_mem + sregs.gdt.base); struct kvm_segment seg_ldt; memset(&seg_ldt, 0, sizeof(seg_ldt)); seg_ldt.selector = X86_SEL_LDT; seg_ldt.type = 2; seg_ldt.base = guest_mem + X86_ADDR_LDT; seg_ldt.limit = 256 * sizeof(uint64_t) - 1; seg_ldt.present = 1; seg_ldt.dpl = 0; seg_ldt.s = 0; seg_ldt.g = 0; seg_ldt.db = 1; seg_ldt.l = 0; sregs.ldt = seg_ldt; uint64_t* ldt = (uint64_t*)(host_mem + sregs.ldt.base); struct kvm_segment seg_cs16; memset(&seg_cs16, 0, sizeof(seg_cs16)); seg_cs16.selector = X86_SEL_CS16; seg_cs16.type = 11; seg_cs16.base = 0; seg_cs16.limit = 0xfffff; seg_cs16.present = 1; seg_cs16.dpl = 0; seg_cs16.s = 1; seg_cs16.g = 0; seg_cs16.db = 0; seg_cs16.l = 0; struct kvm_segment seg_ds16 = seg_cs16; seg_ds16.selector = X86_SEL_DS16; seg_ds16.type = 3; struct kvm_segment seg_cs16_cpl3 = seg_cs16; seg_cs16_cpl3.selector = X86_SEL_CS16_CPL3; seg_cs16_cpl3.dpl = 3; struct kvm_segment seg_ds16_cpl3 = seg_ds16; seg_ds16_cpl3.selector = X86_SEL_DS16_CPL3; seg_ds16_cpl3.dpl = 3; struct kvm_segment seg_cs32 = seg_cs16; seg_cs32.selector = X86_SEL_CS32; seg_cs32.db = 1; struct kvm_segment seg_ds32 = seg_ds16; seg_ds32.selector = X86_SEL_DS32; seg_ds32.db = 1; struct kvm_segment seg_cs32_cpl3 = seg_cs32; seg_cs32_cpl3.selector = X86_SEL_CS32_CPL3; seg_cs32_cpl3.dpl = 3; struct kvm_segment seg_ds32_cpl3 = seg_ds32; seg_ds32_cpl3.selector = X86_SEL_DS32_CPL3; seg_ds32_cpl3.dpl = 3; struct kvm_segment seg_cs64 = seg_cs16; seg_cs64.selector = X86_SEL_CS64; seg_cs64.l = 1; struct kvm_segment seg_ds64 = seg_ds32; seg_ds64.selector = X86_SEL_DS64; struct kvm_segment seg_cs64_cpl3 = seg_cs64; seg_cs64_cpl3.selector = X86_SEL_CS64_CPL3; seg_cs64_cpl3.dpl = 3; struct kvm_segment seg_ds64_cpl3 = seg_ds64; seg_ds64_cpl3.selector = X86_SEL_DS64_CPL3; seg_ds64_cpl3.dpl = 3; struct kvm_segment seg_tss32; memset(&seg_tss32, 0, sizeof(seg_tss32)); seg_tss32.selector = X86_SEL_TSS32; seg_tss32.type = 9; seg_tss32.base = X86_ADDR_VAR_TSS32; seg_tss32.limit = 0x1ff; seg_tss32.present = 1; seg_tss32.dpl = 0; seg_tss32.s = 0; seg_tss32.g = 0; seg_tss32.db = 0; seg_tss32.l = 0; struct kvm_segment seg_tss32_2 = seg_tss32; seg_tss32_2.selector = X86_SEL_TSS32_2; seg_tss32_2.base = X86_ADDR_VAR_TSS32_2; struct kvm_segment seg_tss32_cpl3 = seg_tss32; seg_tss32_cpl3.selector = X86_SEL_TSS32_CPL3; seg_tss32_cpl3.base = X86_ADDR_VAR_TSS32_CPL3; struct kvm_segment seg_tss32_vm86 = seg_tss32; seg_tss32_vm86.selector = X86_SEL_TSS32_VM86; seg_tss32_vm86.base = X86_ADDR_VAR_TSS32_VM86; struct kvm_segment seg_tss16 = seg_tss32; seg_tss16.selector = X86_SEL_TSS16; seg_tss16.base = X86_ADDR_VAR_TSS16; seg_tss16.limit = 0xff; seg_tss16.type = 1; struct kvm_segment seg_tss16_2 = seg_tss16; seg_tss16_2.selector = X86_SEL_TSS16_2; seg_tss16_2.base = X86_ADDR_VAR_TSS16_2; seg_tss16_2.dpl = 0; struct kvm_segment seg_tss16_cpl3 = seg_tss16; seg_tss16_cpl3.selector = X86_SEL_TSS16_CPL3; seg_tss16_cpl3.base = X86_ADDR_VAR_TSS16_CPL3; seg_tss16_cpl3.dpl = 3; struct kvm_segment seg_tss64 = seg_tss32; seg_tss64.selector = X86_SEL_TSS64; seg_tss64.base = X86_ADDR_VAR_TSS64; seg_tss64.limit = 0x1ff; struct kvm_segment seg_tss64_cpl3 = seg_tss64; seg_tss64_cpl3.selector = X86_SEL_TSS64_CPL3; seg_tss64_cpl3.base = X86_ADDR_VAR_TSS64_CPL3; seg_tss64_cpl3.dpl = 3; struct kvm_segment seg_cgate16; memset(&seg_cgate16, 0, sizeof(seg_cgate16)); seg_cgate16.selector = X86_SEL_CGATE16; seg_cgate16.type = 4; seg_cgate16.base = X86_SEL_CS16 | (2 << 16); seg_cgate16.limit = X86_ADDR_VAR_USER_CODE2; seg_cgate16.present = 1; seg_cgate16.dpl = 0; seg_cgate16.s = 0; seg_cgate16.g = 0; seg_cgate16.db = 0; seg_cgate16.l = 0; seg_cgate16.avl = 0; struct kvm_segment seg_tgate16 = seg_cgate16; seg_tgate16.selector = X86_SEL_TGATE16; seg_tgate16.type = 3; seg_cgate16.base = X86_SEL_TSS16_2; seg_tgate16.limit = 0; struct kvm_segment seg_cgate32 = seg_cgate16; seg_cgate32.selector = X86_SEL_CGATE32; seg_cgate32.type = 12; seg_cgate32.base = X86_SEL_CS32 | (2 << 16); struct kvm_segment seg_tgate32 = seg_cgate32; seg_tgate32.selector = X86_SEL_TGATE32; seg_tgate32.type = 11; seg_tgate32.base = X86_SEL_TSS32_2; seg_tgate32.limit = 0; struct kvm_segment seg_cgate64 = seg_cgate16; seg_cgate64.selector = X86_SEL_CGATE64; seg_cgate64.type = 12; seg_cgate64.base = X86_SEL_CS64; int kvmfd = open("/dev/kvm", O_RDWR); char buf[sizeof(struct kvm_cpuid2) + 128 * sizeof(struct kvm_cpuid_entry2)]; memset(buf, 0, sizeof(buf)); struct kvm_cpuid2* cpuid = (struct kvm_cpuid2*)buf; cpuid->nent = 128; ioctl(kvmfd, KVM_GET_SUPPORTED_CPUID, cpuid); ioctl(cpufd, KVM_SET_CPUID2, cpuid); close(kvmfd); const char* text_prefix = 0; int text_prefix_size = 0; char* host_text = host_mem + X86_ADDR_TEXT; if (text_type == 8) { if (flags & KVM_SETUP_SMM) { if (flags & KVM_SETUP_PROTECTED) { sregs.cs = seg_cs16; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds16; sregs.cr0 |= X86_CR0_PE; } else { sregs.cs.selector = 0; sregs.cs.base = 0; } *(host_mem + X86_ADDR_TEXT) = 0xf4; host_text = host_mem + 0x8000; ioctl(cpufd, KVM_SMI, 0); } else if (flags & KVM_SETUP_VIRT86) { sregs.cs = seg_cs32; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32; sregs.cr0 |= X86_CR0_PE; sregs.efer |= X86_EFER_SCE; setup_syscall_msrs(cpufd, X86_SEL_CS32, X86_SEL_CS32_CPL3); setup_32bit_idt(&sregs, host_mem, guest_mem); if (flags & KVM_SETUP_PAGING) { uint64_t pd_addr = guest_mem + X86_ADDR_PD; uint64_t* pd = (uint64_t*)(host_mem + X86_ADDR_PD); pd[0] = X86_PDE32_PRESENT | X86_PDE32_RW | X86_PDE32_USER | X86_PDE32_PS; sregs.cr3 = pd_addr; sregs.cr4 |= X86_CR4_PSE; text_prefix = kvm_asm32_paged_vm86; text_prefix_size = sizeof(kvm_asm32_paged_vm86) - 1; } else { text_prefix = kvm_asm32_vm86; text_prefix_size = sizeof(kvm_asm32_vm86) - 1; } } else { sregs.cs.selector = 0; sregs.cs.base = 0; } } else if (text_type == 16) { if (flags & KVM_SETUP_CPL3) { sregs.cs = seg_cs16; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds16; text_prefix = kvm_asm16_cpl3; text_prefix_size = sizeof(kvm_asm16_cpl3) - 1; } else { sregs.cr0 |= X86_CR0_PE; sregs.cs = seg_cs16; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds16; } } else if (text_type == 32) { sregs.cr0 |= X86_CR0_PE; sregs.efer |= X86_EFER_SCE; setup_syscall_msrs(cpufd, X86_SEL_CS32, X86_SEL_CS32_CPL3); setup_32bit_idt(&sregs, host_mem, guest_mem); if (flags & KVM_SETUP_SMM) { sregs.cs = seg_cs32; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32; *(host_mem + X86_ADDR_TEXT) = 0xf4; host_text = host_mem + 0x8000; ioctl(cpufd, KVM_SMI, 0); } else if (flags & KVM_SETUP_PAGING) { sregs.cs = seg_cs32; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32; uint64_t pd_addr = guest_mem + X86_ADDR_PD; uint64_t* pd = (uint64_t*)(host_mem + X86_ADDR_PD); pd[0] = X86_PDE32_PRESENT | X86_PDE32_RW | X86_PDE32_USER | X86_PDE32_PS; sregs.cr3 = pd_addr; sregs.cr4 |= X86_CR4_PSE; text_prefix = kvm_asm32_paged; text_prefix_size = sizeof(kvm_asm32_paged) - 1; } else if (flags & KVM_SETUP_CPL3) { sregs.cs = seg_cs32_cpl3; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32_cpl3; } else { sregs.cs = seg_cs32; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32; } } else { sregs.efer |= X86_EFER_LME | X86_EFER_SCE; sregs.cr0 |= X86_CR0_PE; setup_syscall_msrs(cpufd, X86_SEL_CS64, X86_SEL_CS64_CPL3); setup_64bit_idt(&sregs, host_mem, guest_mem); sregs.cs = seg_cs32; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32; uint64_t pml4_addr = guest_mem + X86_ADDR_PML4; uint64_t* pml4 = (uint64_t*)(host_mem + X86_ADDR_PML4); uint64_t pdpt_addr = guest_mem + X86_ADDR_PDP; uint64_t* pdpt = (uint64_t*)(host_mem + X86_ADDR_PDP); uint64_t pd_addr = guest_mem + X86_ADDR_PD; uint64_t* pd = (uint64_t*)(host_mem + X86_ADDR_PD); pml4[0] = X86_PDE64_PRESENT | X86_PDE64_RW | X86_PDE64_USER | pdpt_addr; pdpt[0] = X86_PDE64_PRESENT | X86_PDE64_RW | X86_PDE64_USER | pd_addr; pd[0] = X86_PDE64_PRESENT | X86_PDE64_RW | X86_PDE64_USER | X86_PDE64_PS; sregs.cr3 = pml4_addr; sregs.cr4 |= X86_CR4_PAE; if (flags & KVM_SETUP_VM) { sregs.cr0 |= X86_CR0_NE; *((uint64_t*)(host_mem + X86_ADDR_VAR_VMXON_PTR)) = X86_ADDR_VAR_VMXON; *((uint64_t*)(host_mem + X86_ADDR_VAR_VMCS_PTR)) = X86_ADDR_VAR_VMCS; memcpy(host_mem + X86_ADDR_VAR_VMEXIT_CODE, kvm_asm64_vm_exit, sizeof(kvm_asm64_vm_exit) - 1); *((uint64_t*)(host_mem + X86_ADDR_VAR_VMEXIT_PTR)) = X86_ADDR_VAR_VMEXIT_CODE; text_prefix = kvm_asm64_init_vm; text_prefix_size = sizeof(kvm_asm64_init_vm) - 1; } else if (flags & KVM_SETUP_CPL3) { text_prefix = kvm_asm64_cpl3; text_prefix_size = sizeof(kvm_asm64_cpl3) - 1; } else { text_prefix = kvm_asm64_enable_long; text_prefix_size = sizeof(kvm_asm64_enable_long) - 1; } } struct tss16 tss16; memset(&tss16, 0, sizeof(tss16)); tss16.ss0 = tss16.ss1 = tss16.ss2 = X86_SEL_DS16; tss16.sp0 = tss16.sp1 = tss16.sp2 = X86_ADDR_STACK0; tss16.ip = X86_ADDR_VAR_USER_CODE2; tss16.flags = (1 << 1); tss16.cs = X86_SEL_CS16; tss16.es = tss16.ds = tss16.ss = X86_SEL_DS16; tss16.ldt = X86_SEL_LDT; struct tss16* tss16_addr = (struct tss16*)(host_mem + seg_tss16_2.base); memcpy(tss16_addr, &tss16, sizeof(tss16)); memset(&tss16, 0, sizeof(tss16)); tss16.ss0 = tss16.ss1 = tss16.ss2 = X86_SEL_DS16; tss16.sp0 = tss16.sp1 = tss16.sp2 = X86_ADDR_STACK0; tss16.ip = X86_ADDR_VAR_USER_CODE2; tss16.flags = (1 << 1); tss16.cs = X86_SEL_CS16_CPL3; tss16.es = tss16.ds = tss16.ss = X86_SEL_DS16_CPL3; tss16.ldt = X86_SEL_LDT; struct tss16* tss16_cpl3_addr = (struct tss16*)(host_mem + seg_tss16_cpl3.base); memcpy(tss16_cpl3_addr, &tss16, sizeof(tss16)); struct tss32 tss32; memset(&tss32, 0, sizeof(tss32)); tss32.ss0 = tss32.ss1 = tss32.ss2 = X86_SEL_DS32; tss32.sp0 = tss32.sp1 = tss32.sp2 = X86_ADDR_STACK0; tss32.ip = X86_ADDR_VAR_USER_CODE; tss32.flags = (1 << 1) | (1 << 17); tss32.ldt = X86_SEL_LDT; tss32.cr3 = sregs.cr3; tss32.io_bitmap = offsetof(struct tss32, io_bitmap); struct tss32* tss32_addr = (struct tss32*)(host_mem + seg_tss32_vm86.base); memcpy(tss32_addr, &tss32, sizeof(tss32)); memset(&tss32, 0, sizeof(tss32)); tss32.ss0 = tss32.ss1 = tss32.ss2 = X86_SEL_DS32; tss32.sp0 = tss32.sp1 = tss32.sp2 = X86_ADDR_STACK0; tss32.ip = X86_ADDR_VAR_USER_CODE; tss32.flags = (1 << 1); tss32.cr3 = sregs.cr3; tss32.es = tss32.ds = tss32.ss = tss32.gs = tss32.fs = X86_SEL_DS32; tss32.cs = X86_SEL_CS32; tss32.ldt = X86_SEL_LDT; tss32.cr3 = sregs.cr3; tss32.io_bitmap = offsetof(struct tss32, io_bitmap); struct tss32* tss32_cpl3_addr = (struct tss32*)(host_mem + seg_tss32_2.base); memcpy(tss32_cpl3_addr, &tss32, sizeof(tss32)); struct tss64 tss64; memset(&tss64, 0, sizeof(tss64)); tss64.rsp[0] = X86_ADDR_STACK0; tss64.rsp[1] = X86_ADDR_STACK0; tss64.rsp[2] = X86_ADDR_STACK0; tss64.io_bitmap = offsetof(struct tss64, io_bitmap); struct tss64* tss64_addr = (struct tss64*)(host_mem + seg_tss64.base); memcpy(tss64_addr, &tss64, sizeof(tss64)); memset(&tss64, 0, sizeof(tss64)); tss64.rsp[0] = X86_ADDR_STACK0; tss64.rsp[1] = X86_ADDR_STACK0; tss64.rsp[2] = X86_ADDR_STACK0; tss64.io_bitmap = offsetof(struct tss64, io_bitmap); struct tss64* tss64_cpl3_addr = (struct tss64*)(host_mem + seg_tss64_cpl3.base); memcpy(tss64_cpl3_addr, &tss64, sizeof(tss64)); if (text_size > 1000) text_size = 1000; if (text_prefix) { memcpy(host_text, text_prefix, text_prefix_size); void* patch = memmem(host_text, text_prefix_size, "\xde\xc0\xad\x0b", 4); if (patch) *((uint32_t*)patch) = guest_mem + X86_ADDR_TEXT + ((char*)patch - host_text) + 6; uint16_t magic = X86_PREFIX_SIZE; patch = memmem(host_text, text_prefix_size, &magic, sizeof(magic)); if (patch) *((uint16_t*)patch) = guest_mem + X86_ADDR_TEXT + text_prefix_size; } memcpy((void*)(host_text + text_prefix_size), text, text_size); *(host_text + text_prefix_size + text_size) = 0xf4; memcpy(host_mem + X86_ADDR_VAR_USER_CODE, text, text_size); *(host_mem + X86_ADDR_VAR_USER_CODE + text_size) = 0xf4; *(host_mem + X86_ADDR_VAR_HLT) = 0xf4; memcpy(host_mem + X86_ADDR_VAR_SYSRET, "\x0f\x07\xf4", 3); memcpy(host_mem + X86_ADDR_VAR_SYSEXIT, "\x0f\x35\xf4", 3); *(uint64_t*)(host_mem + X86_ADDR_VAR_VMWRITE_FLD) = 0; *(uint64_t*)(host_mem + X86_ADDR_VAR_VMWRITE_VAL) = 0; if (opt_count > 2) opt_count = 2; for (uintptr_t i = 0; i < opt_count; i++) { uint64_t typ = opt_array_ptr[i].typ; uint64_t val = opt_array_ptr[i].val; switch (typ % 9) { case 0: sregs.cr0 ^= val & (X86_CR0_MP | X86_CR0_EM | X86_CR0_ET | X86_CR0_NE | X86_CR0_WP | X86_CR0_AM | X86_CR0_NW | X86_CR0_CD); break; case 1: sregs.cr4 ^= val & (X86_CR4_VME | X86_CR4_PVI | X86_CR4_TSD | X86_CR4_DE | X86_CR4_MCE | X86_CR4_PGE | X86_CR4_PCE | X86_CR4_OSFXSR | X86_CR4_OSXMMEXCPT | X86_CR4_UMIP | X86_CR4_VMXE | X86_CR4_SMXE | X86_CR4_FSGSBASE | X86_CR4_PCIDE | X86_CR4_OSXSAVE | X86_CR4_SMEP | X86_CR4_SMAP | X86_CR4_PKE); break; case 2: sregs.efer ^= val & (X86_EFER_SCE | X86_EFER_NXE | X86_EFER_SVME | X86_EFER_LMSLE | X86_EFER_FFXSR | X86_EFER_TCE); break; case 3: val &= ((1 << 8) | (1 << 9) | (1 << 10) | (1 << 12) | (1 << 13) | (1 << 14) | (1 << 15) | (1 << 18) | (1 << 19) | (1 << 20) | (1 << 21)); regs.rflags ^= val; tss16_addr->flags ^= val; tss16_cpl3_addr->flags ^= val; tss32_addr->flags ^= val; tss32_cpl3_addr->flags ^= val; break; case 4: seg_cs16.type = val & 0xf; seg_cs32.type = val & 0xf; seg_cs64.type = val & 0xf; break; case 5: seg_cs16_cpl3.type = val & 0xf; seg_cs32_cpl3.type = val & 0xf; seg_cs64_cpl3.type = val & 0xf; break; case 6: seg_ds16.type = val & 0xf; seg_ds32.type = val & 0xf; seg_ds64.type = val & 0xf; break; case 7: seg_ds16_cpl3.type = val & 0xf; seg_ds32_cpl3.type = val & 0xf; seg_ds64_cpl3.type = val & 0xf; break; case 8: *(uint64_t*)(host_mem + X86_ADDR_VAR_VMWRITE_FLD) = (val & 0xffff); *(uint64_t*)(host_mem + X86_ADDR_VAR_VMWRITE_VAL) = (val >> 16); break; default: exit(1); } } regs.rflags |= 2; fill_segment_descriptor(gdt, ldt, &seg_ldt); fill_segment_descriptor(gdt, ldt, &seg_cs16); fill_segment_descriptor(gdt, ldt, &seg_ds16); fill_segment_descriptor(gdt, ldt, &seg_cs16_cpl3); fill_segment_descriptor(gdt, ldt, &seg_ds16_cpl3); fill_segment_descriptor(gdt, ldt, &seg_cs32); fill_segment_descriptor(gdt, ldt, &seg_ds32); fill_segment_descriptor(gdt, ldt, &seg_cs32_cpl3); fill_segment_descriptor(gdt, ldt, &seg_ds32_cpl3); fill_segment_descriptor(gdt, ldt, &seg_cs64); fill_segment_descriptor(gdt, ldt, &seg_ds64); fill_segment_descriptor(gdt, ldt, &seg_cs64_cpl3); fill_segment_descriptor(gdt, ldt, &seg_ds64_cpl3); fill_segment_descriptor(gdt, ldt, &seg_tss32); fill_segment_descriptor(gdt, ldt, &seg_tss32_2); fill_segment_descriptor(gdt, ldt, &seg_tss32_cpl3); fill_segment_descriptor(gdt, ldt, &seg_tss32_vm86); fill_segment_descriptor(gdt, ldt, &seg_tss16); fill_segment_descriptor(gdt, ldt, &seg_tss16_2); fill_segment_descriptor(gdt, ldt, &seg_tss16_cpl3); fill_segment_descriptor_dword(gdt, ldt, &seg_tss64); fill_segment_descriptor_dword(gdt, ldt, &seg_tss64_cpl3); fill_segment_descriptor(gdt, ldt, &seg_cgate16); fill_segment_descriptor(gdt, ldt, &seg_tgate16); fill_segment_descriptor(gdt, ldt, &seg_cgate32); fill_segment_descriptor(gdt, ldt, &seg_tgate32); fill_segment_descriptor_dword(gdt, ldt, &seg_cgate64); if (ioctl(cpufd, KVM_SET_SREGS, &sregs)) return -1; if (ioctl(cpufd, KVM_SET_REGS, ®s)) return -1; return 0; } #define RFLAGS_1_BIT (1ULL << 1) #define RFLAGS_IF_BIT (1ULL << 9) static void reset_cpu_regs(int cpufd, int cpu_id, size_t text_size) { struct kvm_regs regs; memset(®s, 0, sizeof(regs)); regs.rflags |= RFLAGS_1_BIT | RFLAGS_IF_BIT; regs.rip = executor_fn_guest_addr(guest_main); regs.rsp = X86_SYZOS_ADDR_STACK0; regs.rdi = text_size; regs.rsi = cpu_id; ioctl(cpufd, KVM_SET_REGS, ®s); } static void install_user_code(struct kvm_syz_vm* vm, int cpufd, int cpu_id, const void* text, size_t text_size) { if ((cpu_id < 0) || (cpu_id >= KVM_MAX_VCPU)) return; if (text_size > KVM_PAGE_SIZE) text_size = KVM_PAGE_SIZE; void* target = (void*)((uint64_t)vm->user_text + (KVM_PAGE_SIZE * cpu_id)); memcpy(target, text, text_size); setup_gdt_ldt_pg(vm, cpufd); setup_cpuid(cpufd); reset_cpu_regs(cpufd, cpu_id, text_size); } struct addr_size { void* addr; size_t size; }; static struct addr_size alloc_guest_mem(struct addr_size* free, size_t size) { struct addr_size ret = {.addr = NULL, .size = 0}; if (free->size < size) return ret; ret.addr = free->addr; ret.size = size; free->addr = (void*)((char*)free->addr + size); free->size -= size; return ret; } static void vm_set_user_memory_region(int vmfd, uint32_t slot, uint32_t flags, uint64_t guest_phys_addr, uint64_t memory_size, uint64_t userspace_addr) { struct kvm_userspace_memory_region memreg; memreg.slot = slot; memreg.flags = flags; memreg.guest_phys_addr = guest_phys_addr; memreg.memory_size = memory_size; memreg.userspace_addr = userspace_addr; ioctl(vmfd, KVM_SET_USER_MEMORY_REGION, &memreg); } static void install_syzos_code(void* host_mem, size_t mem_size) { size_t size = (char*)&__stop_guest - (char*)&__start_guest; if (size > mem_size) exit(1); memcpy(host_mem, &__start_guest, size); } static void setup_vm(int vmfd, struct kvm_syz_vm* vm) { struct addr_size allocator = {.addr = vm->host_mem, .size = vm->total_pages * KVM_PAGE_SIZE}; int slot = 0; for (size_t i = 0; i < sizeof(syzos_mem_regions) / sizeof(syzos_mem_regions[0]); i++) { const struct mem_region* r = &syzos_mem_regions[i]; if (r->flags & MEM_REGION_FLAG_NO_HOST_MEM) continue; struct addr_size next = alloc_guest_mem(&allocator, r->pages * KVM_PAGE_SIZE); uint32_t flags = 0; if (r->flags & MEM_REGION_FLAG_DIRTY_LOG) flags |= KVM_MEM_LOG_DIRTY_PAGES; if (r->flags & MEM_REGION_FLAG_READONLY) flags |= KVM_MEM_READONLY; if (r->flags & MEM_REGION_FLAG_USER_CODE) vm->user_text = next.addr; if (r->flags & MEM_REGION_FLAG_GPA0) vm->gpa0_mem = next.addr; if (r->flags & MEM_REGION_FLAG_EXECUTOR_CODE) install_syzos_code(next.addr, next.size); vm_set_user_memory_region(vmfd, slot++, flags, r->gpa, next.size, (uintptr_t)next.addr); } struct addr_size next = alloc_guest_mem(&allocator, allocator.size); vm_set_user_memory_region(vmfd, slot++, 0, X86_SYZOS_ADDR_UNUSED, next.size, (uintptr_t)next.addr); } static long syz_kvm_setup_syzos_vm(volatile long a0, volatile long a1) { const int vmfd = a0; void* host_mem = (void*)a1; struct kvm_syz_vm* ret = (struct kvm_syz_vm*)host_mem; ret->host_mem = (void*)((uint64_t)host_mem + KVM_PAGE_SIZE); ret->total_pages = KVM_GUEST_PAGES - 1; setup_vm(vmfd, ret); ret->vmfd = vmfd; ret->next_cpu_id = 0; return (long)ret; } static long syz_kvm_add_vcpu(volatile long a0, volatile long a1) { struct kvm_syz_vm* vm = (struct kvm_syz_vm*)a0; struct kvm_text* utext = (struct kvm_text*)a1; const void* text = utext->text; size_t text_size = utext->size; if (!vm) { errno = EINVAL; return -1; } if (vm->next_cpu_id == KVM_MAX_VCPU) { errno = ENOMEM; return -1; } int cpu_id = vm->next_cpu_id; int cpufd = ioctl(vm->vmfd, KVM_CREATE_VCPU, cpu_id); if (cpufd == -1) return -1; vm->next_cpu_id++; install_user_code(vm, cpufd, cpu_id, text, text_size); return cpufd; } static void setup_gadgetfs(); static void setup_binderfs(); static void setup_fusectl(); static void sandbox_common_mount_tmpfs(void) { write_file("/proc/sys/fs/mount-max", "100000"); if (mkdir("./syz-tmp", 0777)) exit(1); if (mount("", "./syz-tmp", "tmpfs", 0, NULL)) exit(1); if (mkdir("./syz-tmp/newroot", 0777)) exit(1); if (mkdir("./syz-tmp/newroot/dev", 0700)) exit(1); unsigned bind_mount_flags = MS_BIND | MS_REC | MS_PRIVATE; if (mount("/dev", "./syz-tmp/newroot/dev", NULL, bind_mount_flags, NULL)) exit(1); if (mkdir("./syz-tmp/newroot/proc", 0700)) exit(1); if (mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL)) exit(1); if (mkdir("./syz-tmp/newroot/selinux", 0700)) exit(1); const char* selinux_path = "./syz-tmp/newroot/selinux"; if (mount("/selinux", selinux_path, NULL, bind_mount_flags, NULL)) { if (errno != ENOENT) exit(1); if (mount("/sys/fs/selinux", selinux_path, NULL, bind_mount_flags, NULL) && errno != ENOENT) exit(1); } if (mkdir("./syz-tmp/newroot/sys", 0700)) exit(1); if (mount("/sys", "./syz-tmp/newroot/sys", 0, bind_mount_flags, NULL)) exit(1); if (mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, bind_mount_flags, NULL) && errno != ENOENT) exit(1); if (mount("/sys/fs/smackfs", "./syz-tmp/newroot/sys/fs/smackfs", NULL, bind_mount_flags, NULL) && errno != ENOENT) exit(1); if (mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, bind_mount_flags, NULL) && errno != ENOENT) exit(1); if (mkdir("./syz-tmp/newroot/syz-inputs", 0700)) exit(1); if (mount("/syz-inputs", "./syz-tmp/newroot/syz-inputs", NULL, bind_mount_flags | MS_RDONLY, NULL) && errno != ENOENT) exit(1); if (mkdir("./syz-tmp/pivot", 0777)) exit(1); if (syscall(SYS_pivot_root, "./syz-tmp", "./syz-tmp/pivot")) { if (chdir("./syz-tmp")) exit(1); } else { if (chdir("/")) exit(1); if (umount2("./pivot", MNT_DETACH)) exit(1); } if (chroot("./newroot")) exit(1); if (chdir("/")) exit(1); setup_gadgetfs(); setup_binderfs(); setup_fusectl(); } static void setup_gadgetfs() { if (mkdir("/dev/gadgetfs", 0777)) { } if (mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL)) { } } static void setup_fusectl() { if (mount(0, "/sys/fs/fuse/connections", "fusectl", 0, 0)) { } } static void setup_binderfs() { if (mkdir("/dev/binderfs", 0777)) { } if (mount("binder", "/dev/binderfs", "binder", 0, NULL)) { } } static void loop(); static void sandbox_common() { prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0); if (getppid() == 1) exit(1); int netns = open("/proc/self/ns/net", O_RDONLY); if (netns == -1) exit(1); if (dup2(netns, kInitNetNsFd) < 0) exit(1); close(netns); struct rlimit rlim; rlim.rlim_cur = rlim.rlim_max = (200 << 20); setrlimit(RLIMIT_AS, &rlim); rlim.rlim_cur = rlim.rlim_max = 32 << 20; setrlimit(RLIMIT_MEMLOCK, &rlim); rlim.rlim_cur = rlim.rlim_max = 136 << 20; setrlimit(RLIMIT_FSIZE, &rlim); rlim.rlim_cur = rlim.rlim_max = 1 << 20; setrlimit(RLIMIT_STACK, &rlim); rlim.rlim_cur = rlim.rlim_max = 128 << 20; setrlimit(RLIMIT_CORE, &rlim); rlim.rlim_cur = rlim.rlim_max = 256; setrlimit(RLIMIT_NOFILE, &rlim); if (unshare(CLONE_NEWNS)) { } if (mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, NULL)) { } if (unshare(CLONE_NEWIPC)) { } if (unshare(0x02000000)) { } if (unshare(CLONE_NEWUTS)) { } if (unshare(CLONE_SYSVSEM)) { } typedef struct { const char* name; const char* value; } sysctl_t; static const sysctl_t sysctls[] = { {"/proc/sys/kernel/shmmax", "16777216"}, {"/proc/sys/kernel/shmall", "536870912"}, {"/proc/sys/kernel/shmmni", "1024"}, {"/proc/sys/kernel/msgmax", "8192"}, {"/proc/sys/kernel/msgmni", "1024"}, {"/proc/sys/kernel/msgmnb", "1024"}, {"/proc/sys/kernel/sem", "1024 1048576 500 1024"}, }; unsigned i; for (i = 0; i < sizeof(sysctls) / sizeof(sysctls[0]); i++) write_file(sysctls[i].name, sysctls[i].value); } static int wait_for_loop(int pid) { if (pid < 0) exit(1); int status = 0; while (waitpid(-1, &status, __WALL) != pid) { } return WEXITSTATUS(status); } static void drop_caps(void) { struct __user_cap_header_struct cap_hdr = {}; struct __user_cap_data_struct cap_data[2] = {}; cap_hdr.version = _LINUX_CAPABILITY_VERSION_3; cap_hdr.pid = getpid(); if (syscall(SYS_capget, &cap_hdr, &cap_data)) exit(1); const int drop = (1 << CAP_SYS_PTRACE) | (1 << CAP_SYS_NICE); cap_data[0].effective &= ~drop; cap_data[0].permitted &= ~drop; cap_data[0].inheritable &= ~drop; if (syscall(SYS_capset, &cap_hdr, &cap_data)) exit(1); } static int do_sandbox_none(void) { if (unshare(CLONE_NEWPID)) { } int pid = fork(); if (pid != 0) return wait_for_loop(pid); sandbox_common(); drop_caps(); if (unshare(CLONE_NEWNET)) { } write_file("/proc/sys/net/ipv4/ping_group_range", "0 65535"); initialize_tun(); sandbox_common_mount_tmpfs(); loop(); exit(1); } #define FS_IOC_SETFLAGS _IOW('f', 2, long) static void remove_dir(const char* dir) { int iter = 0; DIR* dp = 0; const int umount_flags = MNT_FORCE | UMOUNT_NOFOLLOW; retry: while (umount2(dir, umount_flags) == 0) { } dp = opendir(dir); if (dp == NULL) { if (errno == EMFILE) { exit(1); } exit(1); } struct dirent* ep = 0; while ((ep = readdir(dp))) { if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0) continue; char filename[FILENAME_MAX]; snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name); while (umount2(filename, umount_flags) == 0) { } struct stat st; if (lstat(filename, &st)) exit(1); if (S_ISDIR(st.st_mode)) { remove_dir(filename); continue; } int i; for (i = 0;; i++) { if (unlink(filename) == 0) break; if (errno == EPERM) { int fd = open(filename, O_RDONLY); if (fd != -1) { long flags = 0; if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) { } close(fd); continue; } } if (errno == EROFS) { break; } if (errno != EBUSY || i > 100) exit(1); if (umount2(filename, umount_flags)) exit(1); } } closedir(dp); for (int i = 0;; i++) { if (rmdir(dir) == 0) break; if (i < 100) { if (errno == EPERM) { int fd = open(dir, O_RDONLY); if (fd != -1) { long flags = 0; if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) { } close(fd); continue; } } if (errno == EROFS) { break; } if (errno == EBUSY) { if (umount2(dir, umount_flags)) exit(1); continue; } if (errno == ENOTEMPTY) { if (iter < 100) { iter++; goto retry; } } } exit(1); } } static int inject_fault(int nth) { int fd; fd = open("/proc/thread-self/fail-nth", O_RDWR); if (fd == -1) exit(1); char buf[16]; sprintf(buf, "%d", nth); if (write(fd, buf, strlen(buf)) != (ssize_t)strlen(buf)) exit(1); return fd; } static void kill_and_wait(int pid, int* status) { kill(-pid, SIGKILL); kill(pid, SIGKILL); for (int i = 0; i < 100; i++) { if (waitpid(-1, status, WNOHANG | __WALL) == pid) return; usleep(1000); } DIR* dir = opendir("/sys/fs/fuse/connections"); if (dir) { for (;;) { struct dirent* ent = readdir(dir); if (!ent) break; if (strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0) continue; char abort[300]; snprintf(abort, sizeof(abort), "/sys/fs/fuse/connections/%s/abort", ent->d_name); int fd = open(abort, O_WRONLY); if (fd == -1) { continue; } if (write(fd, abort, 1) < 0) { } close(fd); } closedir(dir); } else { } while (waitpid(-1, status, __WALL) != pid) { } } static void reset_loop() { char buf[64]; snprintf(buf, sizeof(buf), "/dev/loop%llu", procid); int loopfd = open(buf, O_RDWR); if (loopfd != -1) { ioctl(loopfd, LOOP_CLR_FD, 0); close(loopfd); } } static void setup_test() { prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0); setpgrp(); write_file("/proc/self/oom_score_adj", "1000"); flush_tun(); if (symlink("/dev/binderfs", "./binderfs")) { } } static const char* setup_fault() { int fd = open("/proc/self/make-it-fail", O_WRONLY); if (fd == -1) return "CONFIG_FAULT_INJECTION is not enabled"; close(fd); fd = open("/proc/thread-self/fail-nth", O_WRONLY); if (fd == -1) return "kernel does not have systematic fault injection support"; close(fd); static struct { const char* file; const char* val; bool fatal; } files[] = { {"/sys/kernel/debug/failslab/ignore-gfp-wait", "N", true}, {"/sys/kernel/debug/fail_futex/ignore-private", "N", false}, {"/sys/kernel/debug/fail_page_alloc/ignore-gfp-highmem", "N", false}, {"/sys/kernel/debug/fail_page_alloc/ignore-gfp-wait", "N", false}, {"/sys/kernel/debug/fail_page_alloc/min-order", "0", false}, }; unsigned i; for (i = 0; i < sizeof(files) / sizeof(files[0]); i++) { if (!write_file(files[i].file, files[i].val)) { if (files[i].fatal) return "failed to write fault injection file"; } } return NULL; } #define FUSE_MIN_READ_BUFFER 8192 enum fuse_opcode { FUSE_LOOKUP = 1, FUSE_FORGET = 2, FUSE_GETATTR = 3, FUSE_SETATTR = 4, FUSE_READLINK = 5, FUSE_SYMLINK = 6, FUSE_MKNOD = 8, FUSE_MKDIR = 9, FUSE_UNLINK = 10, FUSE_RMDIR = 11, FUSE_RENAME = 12, FUSE_LINK = 13, FUSE_OPEN = 14, FUSE_READ = 15, FUSE_WRITE = 16, FUSE_STATFS = 17, FUSE_RELEASE = 18, FUSE_FSYNC = 20, FUSE_SETXATTR = 21, FUSE_GETXATTR = 22, FUSE_LISTXATTR = 23, FUSE_REMOVEXATTR = 24, FUSE_FLUSH = 25, FUSE_INIT = 26, FUSE_OPENDIR = 27, FUSE_READDIR = 28, FUSE_RELEASEDIR = 29, FUSE_FSYNCDIR = 30, FUSE_GETLK = 31, FUSE_SETLK = 32, FUSE_SETLKW = 33, FUSE_ACCESS = 34, FUSE_CREATE = 35, FUSE_INTERRUPT = 36, FUSE_BMAP = 37, FUSE_DESTROY = 38, FUSE_IOCTL = 39, FUSE_POLL = 40, FUSE_NOTIFY_REPLY = 41, FUSE_BATCH_FORGET = 42, FUSE_FALLOCATE = 43, FUSE_READDIRPLUS = 44, FUSE_RENAME2 = 45, FUSE_LSEEK = 46, FUSE_COPY_FILE_RANGE = 47, FUSE_SETUPMAPPING = 48, FUSE_REMOVEMAPPING = 49, FUSE_SYNCFS = 50, FUSE_TMPFILE = 51, FUSE_STATX = 52, CUSE_INIT = 4096, CUSE_INIT_BSWAP_RESERVED = 1048576, FUSE_INIT_BSWAP_RESERVED = 436207616, }; struct fuse_in_header { uint32_t len; uint32_t opcode; uint64_t unique; uint64_t nodeid; uint32_t uid; uint32_t gid; uint32_t pid; uint32_t padding; }; struct fuse_out_header { uint32_t len; uint32_t error; uint64_t unique; }; struct syz_fuse_req_out { struct fuse_out_header* init; struct fuse_out_header* lseek; struct fuse_out_header* bmap; struct fuse_out_header* poll; struct fuse_out_header* getxattr; struct fuse_out_header* lk; struct fuse_out_header* statfs; struct fuse_out_header* write; struct fuse_out_header* read; struct fuse_out_header* open; struct fuse_out_header* attr; struct fuse_out_header* entry; struct fuse_out_header* dirent; struct fuse_out_header* direntplus; struct fuse_out_header* create_open; struct fuse_out_header* ioctl; struct fuse_out_header* statx; }; static int fuse_send_response(int fd, const struct fuse_in_header* in_hdr, struct fuse_out_header* out_hdr) { if (!out_hdr) { return -1; } out_hdr->unique = in_hdr->unique; if (write(fd, out_hdr, out_hdr->len) == -1) { return -1; } return 0; } static volatile long syz_fuse_handle_req(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { struct syz_fuse_req_out* req_out = (struct syz_fuse_req_out*)a3; struct fuse_out_header* out_hdr = NULL; char* buf = (char*)a1; int buf_len = (int)a2; int fd = (int)a0; if (!req_out) { return -1; } if (buf_len < FUSE_MIN_READ_BUFFER) { return -1; } int ret = read(fd, buf, buf_len); if (ret == -1) { return -1; } if ((size_t)ret < sizeof(struct fuse_in_header)) { return -1; } const struct fuse_in_header* in_hdr = (const struct fuse_in_header*)buf; if (in_hdr->len > (uint32_t)ret) { return -1; } switch (in_hdr->opcode) { case FUSE_GETATTR: case FUSE_SETATTR: out_hdr = req_out->attr; break; case FUSE_LOOKUP: case FUSE_SYMLINK: case FUSE_LINK: case FUSE_MKNOD: case FUSE_MKDIR: out_hdr = req_out->entry; break; case FUSE_OPEN: case FUSE_OPENDIR: out_hdr = req_out->open; break; case FUSE_STATFS: out_hdr = req_out->statfs; break; case FUSE_RMDIR: case FUSE_RENAME: case FUSE_RENAME2: case FUSE_FALLOCATE: case FUSE_SETXATTR: case FUSE_REMOVEXATTR: case FUSE_FSYNCDIR: case FUSE_FSYNC: case FUSE_SETLKW: case FUSE_SETLK: case FUSE_ACCESS: case FUSE_FLUSH: case FUSE_RELEASE: case FUSE_RELEASEDIR: case FUSE_UNLINK: case FUSE_DESTROY: out_hdr = req_out->init; if (!out_hdr) { return -1; } out_hdr->len = sizeof(struct fuse_out_header); break; case FUSE_READ: out_hdr = req_out->read; break; case FUSE_READDIR: out_hdr = req_out->dirent; break; case FUSE_READDIRPLUS: out_hdr = req_out->direntplus; break; case FUSE_INIT: out_hdr = req_out->init; break; case FUSE_LSEEK: out_hdr = req_out->lseek; break; case FUSE_GETLK: out_hdr = req_out->lk; break; case FUSE_BMAP: out_hdr = req_out->bmap; break; case FUSE_POLL: out_hdr = req_out->poll; break; case FUSE_GETXATTR: case FUSE_LISTXATTR: out_hdr = req_out->getxattr; break; case FUSE_WRITE: case FUSE_COPY_FILE_RANGE: out_hdr = req_out->write; break; case FUSE_FORGET: case FUSE_BATCH_FORGET: return 0; case FUSE_CREATE: out_hdr = req_out->create_open; break; case FUSE_IOCTL: out_hdr = req_out->ioctl; break; case FUSE_STATX: out_hdr = req_out->statx; break; default: return -1; } return fuse_send_response(fd, in_hdr, out_hdr); } #define HWSIM_ATTR_RX_RATE 5 #define HWSIM_ATTR_SIGNAL 6 #define HWSIM_ATTR_ADDR_RECEIVER 1 #define HWSIM_ATTR_FRAME 3 #define WIFI_MAX_INJECT_LEN 2048 static int hwsim_register_socket(struct nlmsg* nlmsg, int sock, int hwsim_family) { struct genlmsghdr genlhdr; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = HWSIM_CMD_REGISTER; netlink_init(nlmsg, hwsim_family, 0, &genlhdr, sizeof(genlhdr)); int err = netlink_send_ext(nlmsg, sock, 0, NULL, false); if (err < 0) { } return err; } static int hwsim_inject_frame(struct nlmsg* nlmsg, int sock, int hwsim_family, uint8_t* mac_addr, uint8_t* data, int len) { struct genlmsghdr genlhdr; uint32_t rx_rate = WIFI_DEFAULT_RX_RATE; uint32_t signal = WIFI_DEFAULT_SIGNAL; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = HWSIM_CMD_FRAME; netlink_init(nlmsg, hwsim_family, 0, &genlhdr, sizeof(genlhdr)); netlink_attr(nlmsg, HWSIM_ATTR_RX_RATE, &rx_rate, sizeof(rx_rate)); netlink_attr(nlmsg, HWSIM_ATTR_SIGNAL, &signal, sizeof(signal)); netlink_attr(nlmsg, HWSIM_ATTR_ADDR_RECEIVER, mac_addr, ETH_ALEN); netlink_attr(nlmsg, HWSIM_ATTR_FRAME, data, len); int err = netlink_send_ext(nlmsg, sock, 0, NULL, false); if (err < 0) { } return err; } static long syz_80211_inject_frame(volatile long a0, volatile long a1, volatile long a2) { uint8_t* mac_addr = (uint8_t*)a0; uint8_t* buf = (uint8_t*)a1; int buf_len = (int)a2; struct nlmsg tmp_msg; if (buf_len < 0 || buf_len > WIFI_MAX_INJECT_LEN) { return -1; } int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC); if (sock < 0) { return -1; } int hwsim_family_id = netlink_query_family_id(&tmp_msg, sock, "MAC80211_HWSIM", false); if (hwsim_family_id < 0) { close(sock); return -1; } int ret = hwsim_register_socket(&tmp_msg, sock, hwsim_family_id); if (ret < 0) { close(sock); return -1; } ret = hwsim_inject_frame(&tmp_msg, sock, hwsim_family_id, mac_addr, buf, buf_len); close(sock); if (ret < 0) { return -1; } return 0; } #define WIFI_MAX_SSID_LEN 32 #define WIFI_JOIN_IBSS_NO_SCAN 0 #define WIFI_JOIN_IBSS_BG_SCAN 1 #define WIFI_JOIN_IBSS_BG_NO_SCAN 2 static long syz_80211_join_ibss(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { char* interface = (char*)a0; uint8_t* ssid = (uint8_t*)a1; int ssid_len = (int)a2; int mode = (int)a3; struct nlmsg tmp_msg; uint8_t bssid[ETH_ALEN] = WIFI_IBSS_BSSID; if (ssid_len < 0 || ssid_len > WIFI_MAX_SSID_LEN) { return -1; } if (mode < 0 || mode > WIFI_JOIN_IBSS_BG_NO_SCAN) { return -1; } int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC); if (sock < 0) { return -1; } int nl80211_family_id = netlink_query_family_id(&tmp_msg, sock, "nl80211", false); if (nl80211_family_id < 0) { close(sock); return -1; } struct join_ibss_props ibss_props = { .wiphy_freq = WIFI_DEFAULT_FREQUENCY, .wiphy_freq_fixed = (mode == WIFI_JOIN_IBSS_NO_SCAN || mode == WIFI_JOIN_IBSS_BG_NO_SCAN), .mac = bssid, .ssid = ssid, .ssid_len = ssid_len}; int ret = nl80211_setup_ibss_interface(&tmp_msg, sock, nl80211_family_id, interface, &ibss_props, false); close(sock); if (ret < 0) { return -1; } if (mode == WIFI_JOIN_IBSS_NO_SCAN) { ret = await_ifla_operstate(&tmp_msg, interface, IF_OPER_UP, false); if (ret < 0) { return -1; } } return 0; } #define USLEEP_FORKED_CHILD (3 * 50 *1000) static long handle_clone_ret(long ret) { if (ret != 0) { return ret; } usleep(USLEEP_FORKED_CHILD); syscall(__NR_exit, 0); while (1) { } } static long syz_clone(volatile long flags, volatile long stack, volatile long stack_len, volatile long ptid, volatile long ctid, volatile long tls) { long sp = (stack + stack_len) & ~15; long ret = (long)syscall(__NR_clone, flags & ~CLONE_VM, sp, ptid, ctid, tls); return handle_clone_ret(ret); } #define MAX_CLONE_ARGS_BYTES 256 static long syz_clone3(volatile long a0, volatile long a1) { unsigned long copy_size = a1; if (copy_size < sizeof(uint64_t) || copy_size > MAX_CLONE_ARGS_BYTES) return -1; char clone_args[MAX_CLONE_ARGS_BYTES]; memcpy(&clone_args, (void*)a0, copy_size); uint64_t* flags = (uint64_t*)&clone_args; *flags &= ~CLONE_VM; return handle_clone_ret((long)syscall(__NR_clone3, &clone_args, copy_size)); } #define RESERVED_PKEY 15 static long syz_pkey_set(volatile long pkey, volatile long val) { if (pkey == RESERVED_PKEY) { errno = EINVAL; return -1; } uint32_t eax = 0; uint32_t ecx = 0; asm volatile("rdpkru" : "=a"(eax) : "c"(ecx) : "edx"); eax &= ~(3 << ((pkey % 16) * 2)); eax |= (val & 3) << ((pkey % 16) * 2); uint32_t edx = 0; asm volatile("wrpkru" ::"a"(eax), "c"(ecx), "d"(edx)); return 0; } static long syz_pidfd_open(volatile long pid, volatile long flags) { if (pid == 1) { pid = 0; } return syscall(__NR_pidfd_open, pid, flags); } struct thread_t { int created, call; event_t ready, done; }; static struct thread_t threads[16]; static void execute_call(int call); static int running; static void* thr(void* arg) { struct thread_t* th = (struct thread_t*)arg; for (;;) { event_wait(&th->ready); event_reset(&th->ready); execute_call(th->call); __atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED); event_set(&th->done); } return 0; } static void execute_one(void) { if (write(1, "executing program\n", sizeof("executing program\n") - 1)) { } int i, call, thread; for (call = 0; call < 65; call++) { for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0])); thread++) { struct thread_t* th = &threads[thread]; if (!th->created) { th->created = 1; event_init(&th->ready); event_init(&th->done); event_set(&th->done); thread_start(thr, th); } if (!event_isset(&th->done)) continue; event_reset(&th->done); th->call = call; __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED); event_set(&th->ready); if (call == 1) break; event_timedwait(&th->done, 50 + (call == 12 ? 500 : 0) + (call == 56 ? 3000 : 0) + (call == 57 ? 3000 : 0) + (call == 58 ? 3000 : 0) + (call == 59 ? 300 : 0) + (call == 60 ? 300 : 0) + (call == 61 ? 3000 : 0) + (call == 62 ? 300 : 0) + (call == 63 ? 300 : 0)); break; } } for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++) sleep_ms(1); } static void execute_one(void); #define WAIT_FLAGS __WALL static void loop(void) { int iter = 0; for (;; iter++) { char cwdbuf[32]; sprintf(cwdbuf, "./%d", iter); if (mkdir(cwdbuf, 0777)) exit(1); reset_loop(); int pid = fork(); if (pid < 0) exit(1); if (pid == 0) { if (chdir(cwdbuf)) exit(1); setup_test(); execute_one(); exit(0); } int status = 0; uint64_t start = current_time_ms(); for (;;) { sleep_ms(10); if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid) break; if (current_time_ms() - start < 5000) continue; kill_and_wait(pid, &status); break; } remove_dir(cwdbuf); } } uint64_t r[41] = {0xffffffffffffffff, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff}; void execute_call(int call) { intptr_t res = 0; switch (call) { case 0: memcpy((void*)0x200000000000, "/dev/ubi_ctrl\000", 14); inject_fault(1); res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x200000000000ul, /*flags=O_NOCTTY|O_NOATIME|O_DIRECT|O_APPEND|O_RDWR*/0x44502, /*mode=*/0); if (res != -1) r[0] = res; break; case 1: STORE_BY_BITMASK(uint8_t, , 0x200000000140, 0xa, 0, 7); STORE_BY_BITMASK(uint8_t, , 0x200000000140, 1, 7, 1); *(uint32_t*)0x200000000144 = 0xc5; *(uint32_t*)0x200000000148 = 1; *(uint64_t*)0x200000000150 = 0x200000000040; memcpy((void*)0x200000000040, "\xe1\xee\x87\xa8\xf7\x6c\x25\x7b\x75\xc1\x07\x3c\x70\x58\xbe\x82\xfe\x33\x62\xbb\xcc\xa5\x4d\xf5\x20\xd1\xca\x8f\xa9\x1b\x50\x81\x0f\x87\x6d\x1f\xab\x0a\x1c\xc2\x14\xc3\x5f\x4e\x26\x6e\x71\x64\x3d\x8c\x95\x98\x80\x87\xe4\x6a\x87\xc1\xa7\x15\xef\xfe\x06\x16\x9a\xb6\x5f\xa1\x8e\x54\x14\x40\x4f\x30\xc0\x00\x55\x61\x39\x7e\xd1\xd9\x55\x7c\x66\xa9\x94\xb9\x54\xef\xa7\x14\x98\x5a\x2a\xe4\x09\xdf\x81\x11\xfa\x8a\x36\x14\x08\x73\x4d\x15\xb3\x0c\xd9\xab\x3f\xa5\x0e\x08\x8b\x3d\x2b\xaf\xdc\x68\x9e\xa3\xcb\x7e\x52\xa9\xfc\x7f\x5d\x48\xd2\x45\xd4\x09\x7b\xb9\x33\x72\x5b\xd9\xe2\x93\x71\xcd\x77\x80\xb4\xec\x8d\x6e\x2d\xbf\x86\x1a\xad\x04\xd6\x59\x4f\x5e\xbd\x2f\xfa\xb1\xe8\xa6\x8c\x51\x57\xca\xe2\xf4\x6f\x6f\xa3\xae\xac\x0e\x3f\x8b\x7b\x97\x63\x0f\x34\x6b\xc3\x27\x6e\x53\xca\x72\xb4\x17\xf8", 197); syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0xc0185502, /*arg=*/0x200000000140ul); break; case 2: *(uint8_t*)0x200000000180 = 4; *(uint8_t*)0x200000000181 = 9; syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x4002f516, /*arg=*/0x200000000180ul); for (int i = 0; i < 4; i++) { syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x4002f516, /*arg=*/0x200000000180ul); } break; case 3: *(uint32_t*)0x2000000001c0 = -1; syscall(__NR_setsockopt, /*fd=*/r[0], /*level=*/6, /*optname=*/0x13, /*optval=*/0x2000000001c0ul, /*optlen=*/4ul); break; case 4: *(uint32_t*)0x200000000200 = 4; *(uint16_t*)0x200000000208 = 0xa; *(uint16_t*)0x20000000020a = htobe16(0x4e20); *(uint32_t*)0x20000000020c = htobe32(4); *(uint8_t*)0x200000000210 = 0xfc; *(uint8_t*)0x200000000211 = 0; memset((void*)0x200000000212, 0, 13); *(uint8_t*)0x20000000021f = 1; *(uint32_t*)0x200000000220 = 0; *(uint16_t*)0x200000000288 = 0xa; *(uint16_t*)0x20000000028a = htobe16(0x4e21); *(uint32_t*)0x20000000028c = htobe32(1); *(uint8_t*)0x200000000290 = 0xfe; *(uint8_t*)0x200000000291 = 0x80; memset((void*)0x200000000292, 0, 13); *(uint8_t*)0x20000000029f = 0xaa; *(uint32_t*)0x2000000002a0 = 9; syscall(__NR_setsockopt, /*fd=*/r[0], /*level=*/0x29, /*optname=MCAST_BLOCK_SOURCE*/0x2b, /*optval=*/0x200000000200ul, /*optlen=*/0x108ul); break; case 5: *(uint32_t*)0x200000000340 = 0x4b; memcpy((void*)0x200000000344, "\x0c\xbd\x83\x9a\x79\x58\x33\x77\x5d\x88\x69\x41\xba\x50\xa6\x62\xb8\x10\x8f\x94\x6a\xef\xdd\x5c\xb7\xb6\xeb\x3a\x78\xa0\x64\x73\xe5\x82\x89\xee\x95\x41\xad\x35\x45\x8f\xa9\xd6\xb6\x44\xbf\x56\xfd\xbb\xe1\xc4\x40\x04\x3f\x67\x9b\x3a\x03\xcf\x34\xcc\x05\xed\xc7\x36\xad\x84\x88\x52\xc6\x93\xb8\x9b\x55\x1c\xaa\xbf\x8c\xae\xdd\x7f\x8e\xe9\x80\x29\x49\x11\xc0\x2a\xcd\xb1\x10\x5f\x36\xe9\x73\x61\x6e\xb6\x09\x53\x5e\x68\xc8\xaf\xfb\x3c\x93\x5c\x76\x0f\x88\x5f\xa2\xa4\xb4\x83\x8d\x7d\xb0\x09\xe9\x19\xe5\xab\x59\x34\xb3\xb8\x5f\x8f\xf9\xe2\xaf\xc0\xa1\x86\xc9\xdc\xf9\xab\x5c\x9f\x6e\xb4\x56\x20\xdd\xbd\xa7\xe2\xa4\x67\x7a\x1e\x7c\x69\x4b\x3e\x00\xe3\x5a\x16\xd8\xe5\x25\x26\xd1\x35\x3b\xb0\xfd\x60\x7f\xa0\xf0\x7d\x45\x80\x81\x02\xe3\x8c\x66\xb6\xb5\xbf\xe0\x53\x03\x6b\x95\x6a\x96\x70\x1a\x8d\x02\x58\x8e\x7a\x7c\xc1\xf8\x4a\x3c\x0a\x3b\xa7\x80\xd5\xbb\x49\x4e\x86\x01\x75\x98\x9a\xb6\xec\x07\xd1\x35\x33\x71\x5c\xfb\x45\x84\xfd\x2a\x81\x86\xd7\x4b\xb7\x40\x17\x20\x6d\x94\x0f\x25\xfa\x7e\xc2\xde\xbe\x5a\x31\xcf\x5c\x23\x30", 256); syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x41045508, /*arg=*/0x200000000340ul); break; case 6: *(uint64_t*)0x200000000580 = 0x200000000480; *(uint64_t*)0x200000000588 = 0x8000; *(uint32_t*)0x200000000590 = 0x1800; *(uint32_t*)0x200000000594 = 1; *(uint32_t*)0x200000000598 = 3; syscall(__NR_setsockopt, /*fd=*/r[0], /*level=*/0x11b, /*opt=*/4, /*val=*/0x200000000580ul, /*len=*/0x20ul); break; case 7: *(uint64_t*)0x2000000005c0 = 4; syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x127d, /*arg=*/0x2000000005c0ul); break; case 8: *(uint32_t*)0x200000000604 = 0; *(uint32_t*)0x200000000608 = r[0]; *(uint32_t*)0x20000000060c = 0; syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0xc01864c2, /*arg=*/0x200000000600ul); break; case 9: *(uint32_t*)0x2000000006c0 = 0; syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0xc00464c9, /*arg=*/0x2000000006c0ul); break; case 10: memset((void*)0x200000000000, 255, 6); STORE_BY_BITMASK(uint8_t, , 0x200000000040, 0, 0, 2); STORE_BY_BITMASK(uint8_t, , 0x200000000040, 2, 2, 2); STORE_BY_BITMASK(uint8_t, , 0x200000000040, 0xb, 4, 4); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 0, 0, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 1, 1, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 0, 2, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 1, 3, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 1, 4, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 0, 5, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 0, 6, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 1, 7, 1); STORE_BY_BITMASK(uint16_t, , 0x200000000042, 2, 0, 15); STORE_BY_BITMASK(uint16_t, , 0x200000000043, 0, 7, 1); *(uint8_t*)0x200000000044 = 8; *(uint8_t*)0x200000000045 = 2; *(uint8_t*)0x200000000046 = 0x11; *(uint8_t*)0x200000000047 = 0; *(uint8_t*)0x200000000048 = 0; *(uint8_t*)0x200000000049 = 1; *(uint8_t*)0x20000000004a = 8; *(uint8_t*)0x20000000004b = 2; *(uint8_t*)0x20000000004c = 0x11; *(uint8_t*)0x20000000004d = 0; *(uint8_t*)0x20000000004e = 0; *(uint8_t*)0x20000000004f = 0; memset((void*)0x200000000050, 80, 6); STORE_BY_BITMASK(uint16_t, , 0x200000000056, 9, 0, 4); STORE_BY_BITMASK(uint16_t, , 0x200000000056, 0x5bb, 4, 12); STORE_BY_BITMASK(uint8_t, , 0x200000000058, 1, 0, 4); STORE_BY_BITMASK(uint8_t, , 0x200000000058, 1, 4, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000058, 1, 5, 2); STORE_BY_BITMASK(uint8_t, , 0x200000000058, 1, 7, 1); *(uint8_t*)0x200000000059 = 9; STORE_BY_BITMASK(uint16_t, , 0x20000000005a, 0, 0, 1); STORE_BY_BITMASK(uint16_t, , 0x20000000005a, 2, 1, 15); STORE_BY_BITMASK(uint8_t, , 0x20000000005c, 0, 0, 2); STORE_BY_BITMASK(uint8_t, , 0x20000000005c, 0, 2, 2); STORE_BY_BITMASK(uint8_t, , 0x20000000005c, 0, 4, 2); STORE_BY_BITMASK(uint8_t, , 0x20000000005c, 3, 6, 2); STORE_BY_BITMASK(uint8_t, , 0x20000000005d, 0, 0, 1); STORE_BY_BITMASK(uint8_t, , 0x20000000005d, 0, 1, 5); STORE_BY_BITMASK(uint8_t, , 0x20000000005d, 1, 6, 1); STORE_BY_BITMASK(uint8_t, , 0x20000000005d, 0, 7, 1); memcpy((void*)0x20000000005e, "\x05\x5b\xa7\x19\x28\xa7\x9f\x86\x25\x94\x2b\x8e\x22\xa6\x2e\x7d\x0e\xf5\xd2\x6a\xfb\x59\x23\xf0\xa1", 25); syz_80211_inject_frame(/*mac_addr=*/0x200000000000, /*buf=*/0x200000000040, /*buf_len=*/0x37); break; case 11: memcpy((void*)0x200000000080, "wlan0\000", 6); memcpy((void*)0x2000000000c0, "\xf2\x0f\x01\x43\x92\x29\x17\x2e\xc7\x63\x7d\x66\xe2\xf0\x75", 15); syz_80211_join_ibss(/*interface=*/0x200000000080, /*ssid=*/0x2000000000c0, /*ssid_len=*/0xf, /*join_mode=JOIN_IBSS_BG_NO_SCAN*/2); break; case 12: memcpy((void*)0x200000000100, "bpf_lsm_inode_getsecurity\000", 26); syz_btf_id_by_name(/*name=*/0x200000000100); break; case 13: memcpy((void*)0x200000000140, "\xff\x42\x7f\x0e\x46\x59\xab\x58\x93\xd3\xba\xdb\x31\xb3\xb1\xb8\x9d\xa5\x2b\x0f\x3d\x34\x89\xa1\x8a\x58\x37\xba\x6e\x04\xf2\x1c\xf0\x58\x1d\xe7\x94\x6c\x2e\x29\xad\xef\x18\x03\x6a\x10\xce\x36\x12\x50\xa5\x66\x70\x64\xb4\xd4\x56\xc6\x4c\x30\x7d\x63\xcf\xe3\x42\x2c\x3f\xaf\xd4\x50\x31\x5e\x83\x66", 74); memcpy((void*)0x200000000240, "\xb2\x01\xd1\x39\xa4\x34\x4e\x46\x3d\x89\x91\x3b\xee\x9c\x68\xaf\x3f\x34\x09\x0b\x9f\x62\x44\xaf\x88\xc8\xfe\x07\xce\x4f\xfe\x9b\x81\x21\x0d\xa0\xfc\x44\x55\x9d\x98\x5a\xd5\xbb\x1d\xc9\x67\x2c\xe4\xd1\xdf\x55\x4a\xaf\xb7\x80\x53\xf4", 58); res = -1; res = syz_clone(/*flags=CLONE_PIDFD*/0x1000, /*stack=*/0x200000000140, /*stack_len=*/0x4a, /*parentid=*/0x2000000001c0, /*childtid=*/0x200000000200, /*tls=*/0x200000000240); if (res != -1) r[1] = res; break; case 14: *(uint64_t*)0x200000000440 = 0x100400; *(uint64_t*)0x200000000448 = 0x200000000280; *(uint64_t*)0x200000000450 = 0x2000000002c0; *(uint64_t*)0x200000000458 = 0x200000000300; *(uint32_t*)0x200000000460 = 0x2a; *(uint64_t*)0x200000000468 = 0x200000000340; *(uint64_t*)0x200000000470 = 0x15; *(uint64_t*)0x200000000478 = 0x200000000380; *(uint64_t*)0x200000000480 = 0x200000000400; *(uint32_t*)0x200000000400 = r[1]; *(uint64_t*)0x200000000488 = 1; *(uint32_t*)0x200000000490 = -1; res = -1; res = syz_clone3(/*args=*/0x200000000440, /*size=*/0x58); if (res != -1) { r[2] = res; r[3] = *(uint32_t*)0x200000000280; r[4] = *(uint32_t*)0x2000000002c0; r[5] = *(uint32_t*)0x200000000300; } break; case 15: memcpy((void*)0x2000000004c0, "./file0\000", 8); syz_create_resource(/*file=*/0x2000000004c0); break; case 16: memcpy((void*)0x200000000500, "\x44\xf7\x1c\x14\x05\xa2", 6); memset((void*)0x200000000506, 187, 6); *(uint16_t*)0x20000000050c = htobe16(0x8100); STORE_BY_BITMASK(uint16_t, , 0x20000000050e, 1, 0, 3); STORE_BY_BITMASK(uint16_t, , 0x20000000050e, 0, 3, 1); STORE_BY_BITMASK(uint16_t, , 0x20000000050e, 2, 4, 12); *(uint16_t*)0x200000000510 = htobe16(0x8848); STORE_BY_BITMASK(uint32_t, htobe32, 0x200000000512, 0xf, 0, 20); STORE_BY_BITMASK(uint32_t, htobe32, 0x200000000512, 0, 20, 3); STORE_BY_BITMASK(uint32_t, htobe32, 0x200000000512, 1, 23, 1); STORE_BY_BITMASK(uint32_t, htobe32, 0x200000000512, 0, 24, 8); STORE_BY_BITMASK(uint32_t, htobe32, 0x200000000516, 0xc, 0, 20); STORE_BY_BITMASK(uint32_t, htobe32, 0x200000000516, 0, 20, 3); STORE_BY_BITMASK(uint32_t, htobe32, 0x200000000516, 1, 23, 1); STORE_BY_BITMASK(uint32_t, htobe32, 0x200000000516, 0, 24, 8); STORE_BY_BITMASK(uint32_t, htobe32, 0x20000000051a, 2, 0, 20); STORE_BY_BITMASK(uint32_t, htobe32, 0x20000000051a, 0, 20, 3); STORE_BY_BITMASK(uint32_t, htobe32, 0x20000000051a, 1, 23, 1); STORE_BY_BITMASK(uint32_t, htobe32, 0x20000000051a, 0, 24, 8); STORE_BY_BITMASK(uint32_t, htobe32, 0x20000000051e, 0x1c, 0, 20); STORE_BY_BITMASK(uint32_t, htobe32, 0x20000000051e, 0, 20, 3); STORE_BY_BITMASK(uint32_t, htobe32, 0x20000000051e, 0, 23, 1); STORE_BY_BITMASK(uint32_t, htobe32, 0x20000000051e, 0, 24, 8); *(uint8_t*)0x200000000522 = 0; *(uint8_t*)0x200000000523 = 0; memcpy((void*)0x200000000524, "\x67\xa3", 2); memcpy((void*)0x200000000526, "\xc8\x5d\xcd", 3); *(uint16_t*)0x200000000529 = htobe16(0x88ca); memcpy((void*)0x20000000052b, "\xe3\x03\xe8\xe5\x2a\xf9\xa1\x70\x94\x3b\x5f\x0b\x28\x61\xa3\xef\xfb\x85\x25\x60\xb1\x00\x7d\x18\x65\x56\x4a\xed\x84\xdf\xbf\x75\x27\x9a\x5a\x95\x0a\x51\x3b\x75\x59\xf0\x42\xb1\x2f\x0d\x59\x2b\x5a\x8b\xb3\x99\xb9\xa0\x71\xf4\xd2\xb9\xfb\x49\x03\xfb\x61\xb8\x66\xbd\x20\xc4\x3a\x43\x7c\xc6\x91\x5d\x6e\x19\xf0\x58\xe2\x3b\x4c\xfb\xf7\xd6\x6b\x0d\x97\x4a\xa6\xf1\x68\x7c\xc0\x69\x41\xe2\x8e\x85\x15\xa0\x79\x74\x2b\x9f\x83\x83\xf0\x9b\x8e\x29\x49\x3c\xdf\xef\x26\xbe\xab\x29\x80\x2d\x1e\x85\xd1\xa5\x0e\xf5\x67\x0a\x04\x95\x51\xda\xb2\x56\xfd\x3d\xc3\xfd\x66\x7f\xd4\xa2\x9c\x75\x2e\x4f\x3b\xa7\x00\x72\x0a\x9f\xe2\xec\xb4\x7e\x23\x2c\xfb\xb8\x08\x32\x21\x3b\xba\xf3", 166); *(uint32_t*)0x200000000600 = 1; *(uint32_t*)0x200000000604 = 4; *(uint32_t*)0x200000000608 = 0x58f; *(uint32_t*)0x20000000060c = 0x8001; *(uint32_t*)0x200000000610 = 0x2bc; *(uint32_t*)0x200000000614 = 0xf; syz_emit_ethernet(/*len=*/0xd1, /*packet=*/0x200000000500, /*frags=*/0x200000000600); break; case 17: syz_extract_tcp_res(/*res=*/0x200000000700, /*seq_inc=*/0, /*ack_inc=*/0x507); break; case 18: memcpy((void*)0x200000000740, "/dev/cuse\000", 10); res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x200000000740ul, /*flags=*/2, /*mode=*/0); if (res != -1) r[6] = res; break; case 19: *(uint32_t*)0x200000002a80 = 7; *(uint32_t*)0x200000002a84 = 4; *(uint32_t*)0x200000002a88 = r[5]; *(uint32_t*)0x200000002a90 = 0; *(uint64_t*)0x200000002a98 = 0x100000000; *(uint64_t*)0x200000002aa0 = 3; res = syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0xc0286405, /*arg=*/0x200000002a80ul); if (res != -1) r[7] = *(uint32_t*)0x200000002a90; break; case 20: *(uint32_t*)0x200000002b80 = 1; *(uint32_t*)0x200000002b84 = 0; *(uint32_t*)0x200000002b88 = 0xee00; *(uint32_t*)0x200000002b8c = 5; *(uint32_t*)0x200000002b90 = 9; *(uint32_t*)0x200000002b94 = 0x8c; *(uint16_t*)0x200000002b98 = 6; *(uint32_t*)0x200000002b9c = 0xe0000; *(uint64_t*)0x200000002ba0 = 3; *(uint64_t*)0x200000002ba8 = 6; *(uint64_t*)0x200000002bb0 = 0x2c54; *(uint32_t*)0x200000002bb8 = 0x7fffffff; *(uint32_t*)0x200000002bbc = 5; *(uint16_t*)0x200000002bc0 = 3; *(uint16_t*)0x200000002bc2 = 0; *(uint64_t*)0x200000002bc8 = 0x200000002ac0; memcpy((void*)0x200000002ac0, "\x34\xd1\x45\x92\x33\x0d\x2e\xff\xe2\xb2\x42\xce\x1c\x79\xf9\x7a\x73\x7d\xc0\xf7\x74\x5d\x84\xee\xc4\x69\x04\x8b\xa4\x77\x2d\x3c\xa2\xf3\x4e\x3a\x83\xb5\xed\xad\xf6\x55\x0e\x5b\x41\x2c\xf5\xee\x74\x9b\x33\x24\xb3\x00\x32\xad\x2a\xe1\x4c\xfa\x29\xef\x4e\xcf\x97\x41\x6f\xdc\x53\xd7\x3b\xb8\x0e\xa1\x39\xaa\xc1\xbf\x36\x4d\xdc\xbe\x74\x09\x34\x21\x55\xae\x12\x6f\x63\xd9\xe3\xab\x1d\x51\x04\xbe\xfd\xd9", 100); *(uint64_t*)0x200000002bd0 = 0x200000002b40; memcpy((void*)0x200000002b40, "\xe5\x50\x41\x3c\x2f\x46\x9c\x9e\xf0\x8e\xb7\x19\x3b\x0a\x24\x2e\x58\xbe\xfe\x01\x2a\xa8\x9d\x7c", 24); res = syscall(__NR_shmctl, /*shmid=*/8, /*cmd=*/2ul, /*buf=*/0x200000002b80ul); if (res != -1) r[8] = *(uint32_t*)0x200000002b88; break; case 21: res = syscall(__NR_setfsuid, /*uid=*/0xee01); if (res != -1) r[9] = res; break; case 22: res = syscall(__NR_getuid); if (res != -1) r[10] = res; break; case 23: res = syscall(__NR_fstat, /*fd=*/r[3], /*statbuf=*/0x200000002ec0ul); if (res != -1) { r[11] = *(uint32_t*)0x200000002ed8; r[12] = *(uint32_t*)0x200000002edc; } break; case 24: *(uint32_t*)0x200000002f40 = 9; *(uint32_t*)0x200000002f44 = 6; *(uint32_t*)0x200000002f48 = -1; *(uint32_t*)0x200000002f50 = 0xee01; *(uint64_t*)0x200000002f58 = 9; *(uint64_t*)0x200000002f60 = 8; res = syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0xc0286405, /*arg=*/0x200000002f40ul); if (res != -1) r[13] = *(uint32_t*)0x200000002f50; break; case 25: *(uint64_t*)0x200000002f80 = 1; *(uint32_t*)0x200000002f88 = r[3]; *(uint32_t*)0x200000002f90 = r[3]; *(uint64_t*)0x200000002f98 = 0; *(uint64_t*)0x200000002fa0 = 0; memset((void*)0x200000002fa8, 0, 16); *(uint64_t*)0x200000002fb8 = 0x100; *(uint16_t*)0x200000002fc0 = 6; *(uint16_t*)0x200000002fc2 = 4; *(uint32_t*)0x200000002fc4 = 0; *(uint32_t*)0x200000002fc8 = 0xee01; *(uint32_t*)0x200000002fcc = 4; *(uint32_t*)0x200000002fd0 = 2; *(uint64_t*)0x200000002fd8 = 0xe78bc90; *(uint64_t*)0x200000002fe0 = 0x9e350; *(uint32_t*)0x200000002fe8 = 0x10; *(uint64_t*)0x200000002ff0 = 4; *(uint32_t*)0x200000002ff8 = 7; *(uint64_t*)0x200000003000 = 0x3a83; *(uint32_t*)0x200000003008 = 0x80000000; *(uint64_t*)0x200000003010 = 0xff; *(uint32_t*)0x200000003018 = 8; *(uint32_t*)0x20000000301c = 7; *(uint32_t*)0x200000003020 = 7; *(uint32_t*)0x200000003024 = 5; *(uint16_t*)0x200000003028 = 0xd275; *(uint16_t*)0x20000000302a = 6; *(uint16_t*)0x20000000302c = 1; *(uint16_t*)0x20000000302e = 0xff74; *(uint16_t*)0x200000003030 = 5; memset((void*)0x200000003032, 0, 2); *(uint32_t*)0x200000003034 = 0xf0e; *(uint32_t*)0x200000003038 = 0x400; *(uint16_t*)0x20000000303c = 2; *(uint16_t*)0x20000000303e = 0x8001; res = syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0xc0c0586d, /*arg=*/0x200000002f80ul); if (res != -1) { r[14] = *(uint32_t*)0x200000002f88; r[15] = *(uint32_t*)0x200000002f90; r[16] = *(uint32_t*)0x200000002fc8; } break; case 26: *(uint32_t*)0x2000000030c0 = 0x80; *(uint32_t*)0x2000000030c4 = 0; *(uint32_t*)0x2000000030c8 = 0xee01; *(uint32_t*)0x2000000030cc = 8; *(uint32_t*)0x2000000030d0 = 3; *(uint32_t*)0x2000000030d4 = 3; *(uint16_t*)0x2000000030d8 = 6; *(uint64_t*)0x2000000030e0 = 0x200000003040; *(uint8_t*)0x200000003040 = 0xf; *(uint64_t*)0x2000000030e8 = 0x200000003080; *(uint8_t*)0x200000003080 = 0x29; *(uint64_t*)0x2000000030f0 = 0xfffffffffffff801; *(uint64_t*)0x2000000030f8 = 0x6b4c; *(uint64_t*)0x200000003100 = 0; *(uint64_t*)0x200000003108 = 3; *(uint64_t*)0x200000003110 = 0x800; *(uint16_t*)0x200000003118 = 2; *(uint16_t*)0x20000000311a = 0xbf09; *(uint16_t*)0x20000000311c = 3; *(uint32_t*)0x200000003120 = r[2]; *(uint32_t*)0x200000003124 = r[4]; res = syscall(__NR_msgctl, /*msqid=*/2, /*cmd=*/0ul, /*buf=*/0x2000000030c0ul); if (res != -1) r[17] = *(uint32_t*)0x2000000030c4; break; case 27: *(uint32_t*)0x200000003140 = 0xb407; *(uint32_t*)0x200000003144 = 0xee01; *(uint64_t*)0x200000003148 = 8; *(uint64_t*)0x200000003150 = 8; res = syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0x4018aee2, /*arg=*/0x200000003140ul); if (res != -1) r[18] = *(uint32_t*)0x200000003144; break; case 28: memcpy((void*)0x200000003180, "./file0\000", 8); *(uint32_t*)0x2000000031c0 = 8; *(uint32_t*)0x2000000031c4 = 0xfffffffe; *(uint64_t*)0x2000000031c8 = 0; *(uint32_t*)0x2000000031d0 = 0xa; *(uint32_t*)0x2000000031d4 = 0; *(uint32_t*)0x2000000031d8 = 0xee00; *(uint16_t*)0x2000000031dc = 0xf; *(uint16_t*)0x2000000031de = 0x5d3e; *(uint64_t*)0x2000000031e0 = 5; *(uint64_t*)0x2000000031e8 = 0x10; *(uint64_t*)0x2000000031f0 = 0xff89; *(uint64_t*)0x2000000031f8 = 0x100; *(uint64_t*)0x200000003200 = 0xf; *(uint32_t*)0x200000003208 = 8; *(uint32_t*)0x20000000320c = 0; *(uint64_t*)0x200000003210 = 0xfff; *(uint32_t*)0x200000003218 = 2; *(uint32_t*)0x20000000321c = 0; *(uint64_t*)0x200000003220 = 3; *(uint32_t*)0x200000003228 = 0x7fff; *(uint32_t*)0x20000000322c = 0; *(uint64_t*)0x200000003230 = -1; *(uint32_t*)0x200000003238 = 9; *(uint32_t*)0x20000000323c = 0; *(uint32_t*)0x200000003240 = 0; *(uint32_t*)0x200000003244 = 3; *(uint32_t*)0x200000003248 = 7; *(uint32_t*)0x20000000324c = 0x8d6; *(uint64_t*)0x200000003250 = 0x383d; *(uint32_t*)0x200000003258 = 4; *(uint32_t*)0x20000000325c = 0xb0d4; *(uint64_t*)0x200000003260 = 0x503; *(uint32_t*)0x200000003268 = 2; *(uint32_t*)0x20000000326c = 0; *(uint32_t*)0x200000003270 = 5; *(uint32_t*)0x200000003274 = 2; *(uint64_t*)0x200000003278 = 0xfffffffffffffffb; *(uint64_t*)0x200000003280 = 0xff; *(uint64_t*)0x200000003288 = 3; *(uint64_t*)0x200000003290 = 0x259; *(uint64_t*)0x200000003298 = 0xbe9; *(uint64_t*)0x2000000032a0 = 0xff; *(uint64_t*)0x2000000032a8 = 6; *(uint64_t*)0x2000000032b0 = 0x800; *(uint64_t*)0x2000000032b8 = 9; res = syscall(__NR_statx, /*dfd=*/0xffffff9c, /*filename=*/0x200000003180ul, /*flags=*/4, /*mask=*/2, /*buffer=*/0x2000000031c0ul); if (res != -1) r[19] = *(uint32_t*)0x2000000031d4; break; case 29: *(uint32_t*)0x200000004300 = 5; *(uint32_t*)0x200000004304 = 0xee00; *(uint32_t*)0x200000004308 = 0xee00; *(uint32_t*)0x20000000430c = 3; *(uint32_t*)0x200000004310 = 0x7ff; *(uint32_t*)0x200000004314 = 2; *(uint16_t*)0x200000004318 = 5; *(uint32_t*)0x20000000431c = 2; *(uint64_t*)0x200000004320 = 0x401; *(uint64_t*)0x200000004328 = 3; *(uint64_t*)0x200000004330 = 0xfffffffffffffffe; *(uint32_t*)0x200000004338 = r[1]; *(uint32_t*)0x20000000433c = r[4]; *(uint16_t*)0x200000004340 = 0xfffe; *(uint16_t*)0x200000004342 = 0; *(uint64_t*)0x200000004348 = 0x2000000032c0; memcpy((void*)0x2000000032c0, 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4096); *(uint64_t*)0x200000004350 = 0x2000000042c0; memcpy((void*)0x2000000042c0, "\x14\xdc\x2c\x36\xc1\xa4\x73\x0f\x33\xf0\xa4\x77\x56\xb4\x37\x79\x2e\x9a\xc7\x8f\x74\x2f\x82\x1e\x32\x83\x41\xe0\x2b", 29); res = syscall(__NR_shmctl, /*shmid=*/3, /*cmd=*/1ul, /*buf=*/0x200000004300ul); if (res != -1) { r[20] = *(uint32_t*)0x200000004308; r[21] = *(uint32_t*)0x20000000433c; } break; case 30: memcpy((void*)0x200000004600, "./file0\000", 8); res = syscall(__NR_newfstatat, /*dfd=*/0xffffffffffffff9cul, /*file=*/0x200000004600ul, /*statbuf=*/0x200000004640ul, /*flag=*/0ul); if (res != -1) r[22] = *(uint32_t*)0x200000004658; break; case 31: res = syscall(__NR_fstat, /*fd=*/r[3], /*statbuf=*/0x2000000046c0ul); if (res != -1) { r[23] = *(uint32_t*)0x2000000046d8; r[24] = *(uint32_t*)0x2000000046dc; } break; case 32: *(uint32_t*)0x2000000058c0 = -1; *(uint32_t*)0x2000000058c4 = 0xee00; *(uint32_t*)0x2000000058c8 = -1; *(uint32_t*)0x2000000058cc = 2; *(uint32_t*)0x2000000058d0 = 9; *(uint32_t*)0x2000000058d4 = 2; *(uint16_t*)0x2000000058d8 = 4; *(uint32_t*)0x2000000058dc = 6; *(uint64_t*)0x2000000058e0 = 4; *(uint64_t*)0x2000000058e8 = 4; *(uint64_t*)0x2000000058f0 = 1; *(uint32_t*)0x2000000058f8 = 0; *(uint32_t*)0x2000000058fc = r[4]; *(uint16_t*)0x200000005900 = 0x40; *(uint16_t*)0x200000005902 = 0; *(uint64_t*)0x200000005908 = 0x200000004840; memcpy((void*)0x200000004840, "\xbe\x99\x9e\xee\x25\x89\x59\xe9\x3a\x2a\xa6\x8d\xc2\xcb\x1d\x93\xb8\x19\xd2\xb9\xd9\xe6\x78\xe2\xe2\x50\x6d\x54\x51\x0e\x92\x07\x28\xd7\x58\x15\xbb\x80\x27\xe6\xa0\x21\xfe\xbb\x8f\x09\x96\xf8\xad\xd6\x87\x7b\x74\xce\x5e\xac\xe7\x45\x04\xcf\x3a\x4f\x3a\xc4\x6a\x5a\x59\x40\x03\x42\x35\x19\x40\xbf\xb8\x76\x7d\xd9\x95\x5c\x9e\x9a\x99\x41", 84); *(uint64_t*)0x200000005910 = 0x2000000048c0; memcpy((void*)0x2000000048c0, 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4096); res = syscall(__NR_shmctl, /*shmid=*/0, /*cmd=*/7, /*buf=*/0x2000000058c0ul); if (res != -1) r[25] = *(uint32_t*)0x2000000058c4; break; case 33: memcpy((void*)0x200000005940, "./file0\000", 8); *(uint64_t*)0x200000005980 = 0x100000000; *(uint64_t*)0x200000005988 = 0x7d80; *(uint64_t*)0x200000005990 = 1; *(uint32_t*)0x200000005998 = 0x40; *(uint32_t*)0x20000000599c = -1; *(uint32_t*)0x2000000059a0 = 0; *(uint32_t*)0x2000000059a4 = 0; *(uint64_t*)0x2000000059a8 = 7; *(uint64_t*)0x2000000059b0 = 0xfffffffffffffffb; *(uint64_t*)0x2000000059b8 = 0; *(uint64_t*)0x2000000059c0 = 2; *(uint64_t*)0x2000000059c8 = 0xe6; *(uint64_t*)0x2000000059d0 = 2; *(uint64_t*)0x2000000059d8 = 4; *(uint64_t*)0x2000000059e0 = 0xa03f; *(uint64_t*)0x2000000059e8 = 0x10; *(uint64_t*)0x2000000059f0 = 7; memset((void*)0x2000000059f8, 0, 24); res = syscall(__NR_lstat, /*filename=*/0x200000005940ul, /*statbuf=*/0x200000005980ul); if (res != -1) { r[26] = *(uint32_t*)0x20000000599c; r[27] = *(uint32_t*)0x2000000059a0; } break; case 34: memcpy((void*)0x200000000780, 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8192); *(uint64_t*)0x200000005b80 = 0x200000002780; *(uint32_t*)0x200000002780 = 0x50; *(uint32_t*)0x200000002784 = 0xffffffda; *(uint64_t*)0x200000002788 = 7; *(uint32_t*)0x200000002790 = 7; *(uint32_t*)0x200000002794 = 0x2d; *(uint32_t*)0x200000002798 = 8; *(uint32_t*)0x20000000279c = 0x1020000; *(uint16_t*)0x2000000027a0 = 0xfffc; *(uint16_t*)0x2000000027a2 = 0x401; *(uint32_t*)0x2000000027a4 = 0x12; *(uint32_t*)0x2000000027a8 = 6; *(uint16_t*)0x2000000027ac = 0; *(uint16_t*)0x2000000027ae = 0; *(uint32_t*)0x2000000027b0 = 0x40; *(uint32_t*)0x2000000027b4 = 0xce; memset((void*)0x2000000027b8, 0, 24); *(uint64_t*)0x200000005b88 = 0x200000002800; *(uint32_t*)0x200000002800 = 0x18; *(uint32_t*)0x200000002804 = 0; *(uint64_t*)0x200000002808 = 6; *(uint64_t*)0x200000002810 = 0xbb; *(uint64_t*)0x200000005b90 = 0x200000002840; *(uint32_t*)0x200000002840 = 0x18; *(uint32_t*)0x200000002844 = 0; *(uint64_t*)0x200000002848 = 1; *(uint64_t*)0x200000002850 = 5; *(uint64_t*)0x200000005b98 = 0x200000002880; *(uint32_t*)0x200000002880 = 0x18; *(uint32_t*)0x200000002884 = 0xfffffff5; *(uint64_t*)0x200000002888 = 4; *(uint32_t*)0x200000002890 = 0; *(uint32_t*)0x200000002894 = 0; *(uint64_t*)0x200000005ba0 = 0x2000000028c0; *(uint32_t*)0x2000000028c0 = 0x18; *(uint32_t*)0x2000000028c4 = 0xfffffffe; *(uint64_t*)0x2000000028c8 = 3; *(uint32_t*)0x2000000028d0 = 7; *(uint32_t*)0x2000000028d4 = 0; *(uint64_t*)0x200000005ba8 = 0x200000002900; *(uint32_t*)0x200000002900 = 0x28; *(uint32_t*)0x200000002904 = 0; *(uint64_t*)0x200000002908 = 0x300000000000; *(uint64_t*)0x200000002910 = 1; *(uint64_t*)0x200000002918 = 8; *(uint32_t*)0x200000002920 = 0; *(uint32_t*)0x200000002924 = r[1]; *(uint64_t*)0x200000005bb0 = 0x200000002940; *(uint32_t*)0x200000002940 = 0x60; *(uint32_t*)0x200000002944 = 0; *(uint64_t*)0x200000002948 = 0xc; *(uint64_t*)0x200000002950 = 0; *(uint64_t*)0x200000002958 = 0xff; *(uint64_t*)0x200000002960 = 2; *(uint64_t*)0x200000002968 = 0x41; *(uint64_t*)0x200000002970 = 0x40; *(uint32_t*)0x200000002978 = 6; *(uint32_t*)0x20000000297c = 0x8dd; *(uint32_t*)0x200000002980 = 5; *(uint32_t*)0x200000002984 = 0; memset((void*)0x200000002988, 0, 24); *(uint64_t*)0x200000005bb8 = 0x2000000029c0; *(uint32_t*)0x2000000029c0 = 0x18; *(uint32_t*)0x2000000029c4 = 0xffffffda; *(uint64_t*)0x2000000029c8 = 9; *(uint32_t*)0x2000000029d0 = 5; *(uint32_t*)0x2000000029d4 = 0; *(uint64_t*)0x200000005bc0 = 0x200000002a00; *(uint32_t*)0x200000002a00 = 0x16; *(uint32_t*)0x200000002a04 = 0; *(uint64_t*)0x200000002a08 = 6; memset((void*)0x200000002a10, 255, 6); *(uint64_t*)0x200000005bc8 = 0x200000002a40; *(uint32_t*)0x200000002a40 = 0x20; *(uint32_t*)0x200000002a44 = 0; *(uint64_t*)0x200000002a48 = 0; *(uint64_t*)0x200000002a50 = 0; *(uint32_t*)0x200000002a58 = 0x1e; *(uint32_t*)0x200000002a5c = 0; *(uint64_t*)0x200000005bd0 = 0x200000002c00; *(uint32_t*)0x200000002c00 = 0x78; *(uint32_t*)0x200000002c04 = 0xfffffffe; *(uint64_t*)0x200000002c08 = 3; *(uint64_t*)0x200000002c10 = 8; *(uint32_t*)0x200000002c18 = 6; *(uint32_t*)0x200000002c1c = 0; *(uint64_t*)0x200000002c20 = 0; *(uint64_t*)0x200000002c28 = 8; *(uint64_t*)0x200000002c30 = 2; *(uint64_t*)0x200000002c38 = 8; *(uint64_t*)0x200000002c40 = 0x80; *(uint64_t*)0x200000002c48 = 5; *(uint32_t*)0x200000002c50 = 0x3482; *(uint32_t*)0x200000002c54 = 0xa246; *(uint32_t*)0x200000002c58 = 0x80000000; *(uint32_t*)0x200000002c5c = 0x4000; *(uint32_t*)0x200000002c60 = 0x3e08; *(uint32_t*)0x200000002c64 = r[7]; *(uint32_t*)0x200000002c68 = r[8]; *(uint32_t*)0x200000002c6c = 0x7f; *(uint32_t*)0x200000002c70 = 3; *(uint32_t*)0x200000002c74 = 0; *(uint64_t*)0x200000005bd8 = 0x200000002c80; *(uint32_t*)0x200000002c80 = 0x90; *(uint32_t*)0x200000002c84 = 0xffffffda; *(uint64_t*)0x200000002c88 = 2; *(uint64_t*)0x200000002c90 = 6; *(uint64_t*)0x200000002c98 = 0; *(uint64_t*)0x200000002ca0 = 2; *(uint64_t*)0x200000002ca8 = 8; *(uint32_t*)0x200000002cb0 = 0xfffffffc; *(uint32_t*)0x200000002cb4 = 9; *(uint64_t*)0x200000002cb8 = 1; *(uint64_t*)0x200000002cc0 = 3; *(uint64_t*)0x200000002cc8 = 2; *(uint64_t*)0x200000002cd0 = 5; *(uint64_t*)0x200000002cd8 = 0x761; *(uint64_t*)0x200000002ce0 = 7; *(uint32_t*)0x200000002ce8 = 0x58d95c3d; *(uint32_t*)0x200000002cec = 7; *(uint32_t*)0x200000002cf0 = 7; *(uint32_t*)0x200000002cf4 = 0x8000; *(uint32_t*)0x200000002cf8 = 8; *(uint32_t*)0x200000002cfc = r[9]; *(uint32_t*)0x200000002d00 = 0xee01; *(uint32_t*)0x200000002d04 = 0; *(uint32_t*)0x200000002d08 = 0x400; *(uint32_t*)0x200000002d0c = 0; *(uint64_t*)0x200000005be0 = 0x200000002d40; *(uint32_t*)0x200000002d40 = 0x158; *(uint32_t*)0x200000002d44 = 0; *(uint64_t*)0x200000002d48 = 0x8000000000000001; *(uint64_t*)0x200000002d50 = 0; *(uint64_t*)0x200000002d58 = 0; *(uint32_t*)0x200000002d60 = 0; *(uint32_t*)0x200000002d64 = 5; *(uint64_t*)0x200000002d68 = 2; *(uint64_t*)0x200000002d70 = 0x291; *(uint32_t*)0x200000002d78 = 3; *(uint32_t*)0x200000002d7c = 0; memcpy((void*)0x200000002d80, "a-$", 3); *(uint64_t*)0x200000002d88 = 6; *(uint64_t*)0x200000002d90 = 1; *(uint32_t*)0x200000002d98 = 0x1a; *(uint32_t*)0x200000002d9c = 0x5df9; memcpy((void*)0x200000002da0, "bpf_lsm_inode_getsecurity\000", 26); *(uint64_t*)0x200000002dc0 = 5; *(uint64_t*)0x200000002dc8 = 4; *(uint32_t*)0x200000002dd0 = 0; *(uint32_t*)0x200000002dd4 = 0; *(uint64_t*)0x200000002dd8 = 3; *(uint64_t*)0x200000002de0 = 2; *(uint32_t*)0x200000002de8 = 7; *(uint32_t*)0x200000002dec = 0x615d; memcpy((void*)0x200000002df0, "]F,[@%(", 7); *(uint64_t*)0x200000002df8 = 3; *(uint64_t*)0x200000002e00 = 4; *(uint32_t*)0x200000002e08 = 2; *(uint32_t*)0x200000002e0c = 5; memcpy((void*)0x200000002e10, "#*", 2); *(uint64_t*)0x200000002e18 = 6; *(uint64_t*)0x200000002e20 = 0xc; *(uint32_t*)0x200000002e28 = 1; *(uint32_t*)0x200000002e2c = 0x200; memset((void*)0x200000002e30, 33, 1); *(uint64_t*)0x200000002e38 = 2; *(uint64_t*)0x200000002e40 = 1; *(uint32_t*)0x200000002e48 = 3; *(uint32_t*)0x200000002e4c = 0xffff; memcpy((void*)0x200000002e50, "%[*", 3); *(uint64_t*)0x200000002e58 = 2; *(uint64_t*)0x200000002e60 = 1; *(uint32_t*)0x200000002e68 = 6; *(uint32_t*)0x200000002e6c = 0x10001; memset((void*)0x200000002e70, 187, 6); *(uint64_t*)0x200000002e78 = 2; *(uint64_t*)0x200000002e80 = 9; *(uint32_t*)0x200000002e88 = 3; *(uint32_t*)0x200000002e8c = 3; memcpy((void*)0x200000002e90, "\\$&", 3); *(uint64_t*)0x200000005be8 = 0x200000004380; *(uint32_t*)0x200000004380 = 0x280; *(uint32_t*)0x200000004384 = 0; *(uint64_t*)0x200000004388 = 7; *(uint64_t*)0x200000004390 = 1; *(uint64_t*)0x200000004398 = 2; *(uint64_t*)0x2000000043a0 = 0x9b; *(uint64_t*)0x2000000043a8 = 0xa; *(uint32_t*)0x2000000043b0 = 0x40; *(uint32_t*)0x2000000043b4 = 0x2b; *(uint64_t*)0x2000000043b8 = 1; *(uint64_t*)0x2000000043c0 = 0; *(uint64_t*)0x2000000043c8 = 0xf5; *(uint64_t*)0x2000000043d0 = 7; *(uint64_t*)0x2000000043d8 = 8; *(uint64_t*)0x2000000043e0 = 7; *(uint32_t*)0x2000000043e8 = 5; *(uint32_t*)0x2000000043ec = 9; *(uint32_t*)0x2000000043f0 = 0x1b; *(uint32_t*)0x2000000043f4 = 0xa000; *(uint32_t*)0x2000000043f8 = 4; *(uint32_t*)0x2000000043fc = r[10]; *(uint32_t*)0x200000004400 = r[12]; *(uint32_t*)0x200000004404 = 4; *(uint32_t*)0x200000004408 = 0x10000; *(uint32_t*)0x20000000440c = 0; *(uint64_t*)0x200000004410 = 4; *(uint64_t*)0x200000004418 = 6; *(uint32_t*)0x200000004420 = 0; *(uint32_t*)0x200000004424 = 0x7f; *(uint64_t*)0x200000004428 = 1; *(uint64_t*)0x200000004430 = 0; *(uint64_t*)0x200000004438 = 9; *(uint64_t*)0x200000004440 = 4; *(uint32_t*)0x200000004448 = 9; *(uint32_t*)0x20000000444c = 0x101; *(uint64_t*)0x200000004450 = 0; *(uint64_t*)0x200000004458 = 0x80; *(uint64_t*)0x200000004460 = 0x80000001; *(uint64_t*)0x200000004468 = 8; *(uint64_t*)0x200000004470 = 0x7fffffffffffffff; *(uint64_t*)0x200000004478 = 0xc14; *(uint32_t*)0x200000004480 = 7; *(uint32_t*)0x200000004484 = 2; *(uint32_t*)0x200000004488 = 5; *(uint32_t*)0x20000000448c = 0x1000; *(uint32_t*)0x200000004490 = 7; *(uint32_t*)0x200000004494 = r[13]; *(uint32_t*)0x200000004498 = r[16]; *(uint32_t*)0x20000000449c = 7; *(uint32_t*)0x2000000044a0 = 3; *(uint32_t*)0x2000000044a4 = 0; *(uint64_t*)0x2000000044a8 = 1; *(uint64_t*)0x2000000044b0 = 0x8000000000000000; *(uint32_t*)0x2000000044b8 = 0; *(uint32_t*)0x2000000044bc = 9; *(uint64_t*)0x2000000044c0 = 3; *(uint64_t*)0x2000000044c8 = 1; *(uint64_t*)0x2000000044d0 = 7; *(uint64_t*)0x2000000044d8 = 3; *(uint32_t*)0x2000000044e0 = 0x10000; *(uint32_t*)0x2000000044e4 = 0xfff; *(uint64_t*)0x2000000044e8 = 6; *(uint64_t*)0x2000000044f0 = 3; *(uint64_t*)0x2000000044f8 = 4; *(uint64_t*)0x200000004500 = 0xffffffff; *(uint64_t*)0x200000004508 = 5; *(uint64_t*)0x200000004510 = 1; *(uint32_t*)0x200000004518 = 0xcf; *(uint32_t*)0x20000000451c = 5; *(uint32_t*)0x200000004520 = 2; *(uint32_t*)0x200000004524 = 0x3000; *(uint32_t*)0x200000004528 = 0xf; *(uint32_t*)0x20000000452c = r[17]; *(uint32_t*)0x200000004530 = r[18]; *(uint32_t*)0x200000004534 = 0xdda; *(uint32_t*)0x200000004538 = 0x800; *(uint32_t*)0x20000000453c = 0; *(uint64_t*)0x200000004540 = 0; *(uint64_t*)0x200000004548 = 0x480; *(uint32_t*)0x200000004550 = 1; *(uint32_t*)0x200000004554 = 7; memset((void*)0x200000004558, 39, 1); *(uint64_t*)0x200000004560 = 3; *(uint64_t*)0x200000004568 = 0; *(uint64_t*)0x200000004570 = 6; *(uint64_t*)0x200000004578 = 6; *(uint32_t*)0x200000004580 = 0xae90; *(uint32_t*)0x200000004584 = 0x7fff; *(uint64_t*)0x200000004588 = 5; *(uint64_t*)0x200000004590 = 2; *(uint64_t*)0x200000004598 = 0xffff; *(uint64_t*)0x2000000045a0 = 0xb6; *(uint64_t*)0x2000000045a8 = 9; *(uint64_t*)0x2000000045b0 = 8; *(uint32_t*)0x2000000045b8 = 0x200; *(uint32_t*)0x2000000045bc = 3; *(uint32_t*)0x2000000045c0 = 6; *(uint32_t*)0x2000000045c4 = 0x6000; *(uint32_t*)0x2000000045c8 = 0xfffffff7; *(uint32_t*)0x2000000045cc = r[19]; *(uint32_t*)0x2000000045d0 = r[20]; *(uint32_t*)0x2000000045d4 = 4; *(uint32_t*)0x2000000045d8 = 6; *(uint32_t*)0x2000000045dc = 0; *(uint64_t*)0x2000000045e0 = 0; *(uint64_t*)0x2000000045e8 = 3; *(uint32_t*)0x2000000045f0 = 6; *(uint32_t*)0x2000000045f4 = 0xfffffffd; memcpy((void*)0x2000000045f8, "wlan0\000", 6); *(uint64_t*)0x200000005bf0 = 0x200000004740; *(uint32_t*)0x200000004740 = 0xa0; *(uint32_t*)0x200000004744 = 0xfffffffe; *(uint64_t*)0x200000004748 = 0x7fff; *(uint64_t*)0x200000004750 = 1; *(uint64_t*)0x200000004758 = 2; *(uint64_t*)0x200000004760 = 8; *(uint64_t*)0x200000004768 = 0x8001; *(uint32_t*)0x200000004770 = 0x9000; *(uint32_t*)0x200000004774 = 0; *(uint64_t*)0x200000004778 = 3; *(uint64_t*)0x200000004780 = 4; *(uint64_t*)0x200000004788 = 0x4283; *(uint64_t*)0x200000004790 = 6; *(uint64_t*)0x200000004798 = 7; *(uint64_t*)0x2000000047a0 = 1; *(uint32_t*)0x2000000047a8 = 4; *(uint32_t*)0x2000000047ac = 0x8000; *(uint32_t*)0x2000000047b0 = 0x7f; *(uint32_t*)0x2000000047b4 = 0x2000; *(uint32_t*)0x2000000047b8 = 0xa; *(uint32_t*)0x2000000047bc = r[22]; *(uint32_t*)0x2000000047c0 = r[24]; *(uint32_t*)0x2000000047c4 = 2; *(uint32_t*)0x2000000047c8 = 9; *(uint32_t*)0x2000000047cc = 0; *(uint64_t*)0x2000000047d0 = 0; *(uint32_t*)0x2000000047d8 = 0; *(uint32_t*)0x2000000047dc = 0; *(uint64_t*)0x200000005bf8 = 0x200000004800; *(uint32_t*)0x200000004800 = 0x20; *(uint32_t*)0x200000004804 = 0; *(uint64_t*)0x200000004808 = 0xa; *(uint32_t*)0x200000004810 = 8; *(uint32_t*)0x200000004814 = 0; *(uint32_t*)0x200000004818 = 0; *(uint32_t*)0x20000000481c = 0; *(uint64_t*)0x200000005c00 = 0x200000005a40; *(uint32_t*)0x200000005a40 = 0x130; *(uint32_t*)0x200000005a44 = 0; *(uint64_t*)0x200000005a48 = 0x800; *(uint64_t*)0x200000005a50 = 0x10000000; *(uint32_t*)0x200000005a58 = 9; *(uint32_t*)0x200000005a5c = 0; memset((void*)0x200000005a60, 0, 16); *(uint32_t*)0x200000005a70 = 4; *(uint32_t*)0x200000005a74 = 0xfffffff9; *(uint64_t*)0x200000005a78 = 8; *(uint32_t*)0x200000005a80 = 0xd; *(uint32_t*)0x200000005a84 = r[25]; *(uint32_t*)0x200000005a88 = r[27]; *(uint16_t*)0x200000005a8c = 0x4000; memset((void*)0x200000005a8e, 0, 2); *(uint64_t*)0x200000005a90 = 0xe; *(uint64_t*)0x200000005a98 = 1; *(uint64_t*)0x200000005aa0 = 9; *(uint64_t*)0x200000005aa8 = 4; *(uint64_t*)0x200000005ab0 = 0x75; *(uint32_t*)0x200000005ab8 = 0x10; *(uint32_t*)0x200000005abc = 0; *(uint64_t*)0x200000005ac0 = 0; *(uint32_t*)0x200000005ac8 = 0x2a; *(uint32_t*)0x200000005acc = 0; *(uint64_t*)0x200000005ad0 = 4; *(uint32_t*)0x200000005ad8 = 0x647; *(uint32_t*)0x200000005adc = 0; *(uint64_t*)0x200000005ae0 = 8; *(uint32_t*)0x200000005ae8 = 0xfffffffa; *(uint32_t*)0x200000005aec = 0; *(uint32_t*)0x200000005af0 = 4; *(uint32_t*)0x200000005af4 = 9; *(uint32_t*)0x200000005af8 = 0xf1; *(uint32_t*)0x200000005afc = 7; memset((void*)0x200000005b00, 0, 112); syz_fuse_handle_req(/*fd=*/r[6], /*buf=*/0x200000000780, /*len=*/0x2000, /*res=*/0x200000005b80); break; case 35: res = syscall(__NR_socket, /*domain=*/0x10ul, /*type=*/3ul, /*proto=*/0x10); if (res != -1) r[28] = res; break; case 36: memcpy((void*)0x200000005c40, "SEG6\000", 5); syz_genetlink_get_family_id(/*name=*/0x200000005c40, /*fd=*/r[28]); break; case 37: syz_init_net_socket(/*domain=*/0x24, /*type=*/2, /*proto=*/0); break; case 38: res = -1; res = syz_io_uring_complete(/*ring_ptr=*/0); if (res != -1) r[29] = res; break; case 39: *(uint32_t*)0x200000005c84 = 0x9c5d; *(uint32_t*)0x200000005c88 = 2; *(uint32_t*)0x200000005c8c = 1; *(uint32_t*)0x200000005c90 = 0x253; *(uint32_t*)0x200000005c98 = r[15]; memset((void*)0x200000005c9c, 0, 12); res = -1; res = syz_io_uring_setup(/*entries=*/0x19f7, /*params=*/0x200000005c80, /*ring_ptr=*/0x200000005d00, /*sqes_ptr=*/0x200000005d40); if (res != -1) { r[30] = *(uint64_t*)0x200000005d00; r[31] = *(uint64_t*)0x200000005d40; } break; case 40: *(uint8_t*)0x200000005dc0 = 0xb; *(uint8_t*)0x200000005dc1 = 0x28; *(uint16_t*)0x200000005dc2 = 0; *(uint32_t*)0x200000005dc4 = 0; *(uint64_t*)0x200000005dc8 = 3; *(uint64_t*)0x200000005dd0 = 0x200000005d80; *(uint64_t*)0x200000005d80 = 0; *(uint64_t*)0x200000005d88 = 0; *(uint32_t*)0x200000005dd8 = 1; *(uint32_t*)0x200000005ddc = 0x10; *(uint64_t*)0x200000005de0 = 1; *(uint16_t*)0x200000005de8 = 0; *(uint16_t*)0x200000005dea = 0; memset((void*)0x200000005dec, 0, 20); syz_io_uring_submit(/*ring_ptr=*/r[30], /*sqes_ptr=*/r[31], /*sqe=*/0x200000005dc0); break; case 41: res = -1; res = syz_kvm_setup_syzos_vm(/*fd=*/r[15], /*usermem=*/0x200000bff000); if (res != -1) r[32] = res; break; case 42: *(uint64_t*)0x200000005e80 = 0; *(uint64_t*)0x200000005e88 = 0x200000005e00; *(uint64_t*)0x200000005e00 = 0x12c; *(uint64_t*)0x200000005e08 = 0x18; *(uint64_t*)0x200000005e10 = 0; *(uint64_t*)0x200000005e18 = 0; *(uint64_t*)0x200000005e20 = 0x18; *(uint64_t*)0x200000005e28 = 4; *(uint64_t*)0x200000005e30 = 0x12d; *(uint64_t*)0x200000005e38 = 0x18; *(uint64_t*)0x200000005e40 = 2; *(uint64_t*)0x200000005e90 = 0x48; syz_kvm_add_vcpu(/*vm=*/r[32], /*text=*/0x200000005e80); break; case 43: *(uint64_t*)0x200000006100 = 0; *(uint64_t*)0x200000006108 = 0x200000005ec0; memcpy((void*)0x200000005ec0, 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560); *(uint64_t*)0x200000006110 = 0x230; *(uint64_t*)0x200000006140 = 1; *(uint64_t*)0x200000006148 = 7; syz_kvm_setup_cpu(/*fd=*/r[14], /*cpufd=*/r[29], /*usermem=*/0x200000c37000, /*text=*/0x200000006100, /*ntext=*/1, /*flags=KVM_SETUP_PPC64_LE*/1, /*opts=*/0x200000006140, /*nopt=*/1); break; case 44: syz_kvm_setup_syzos_vm(/*fd=*/r[29], /*usermem=*/0x200000c00000); break; case 45: *(uint32_t*)0x200000006180 = 0; syz_memcpy_off(/*ring_ptr=*/r[30], /*flag_off=SQ_FLAGS_OFFSET*/0x114, /*src=*/0x200000006180, /*src_off=*/0, /*nbytes=*/4); break; case 46: *(uint64_t*)0x200000006240 = 5; res = syscall(__NR_socketcall, /*call=*/1ul, /*args=*/0x200000006240ul); if (res != -1) r[33] = res; break; case 47: *(uint32_t*)0x200000006340 = 0xfffffffa; *(uint32_t*)0x200000006344 = r[11]; *(uint32_t*)0x200000006348 = r[27]; *(uint32_t*)0x20000000634c = 3; *(uint32_t*)0x200000006350 = 0xffff; *(uint32_t*)0x200000006354 = 0xe6b; *(uint16_t*)0x200000006358 = 7; *(uint32_t*)0x20000000635c = 0; *(uint64_t*)0x200000006360 = 0x357b; *(uint64_t*)0x200000006368 = 3; *(uint64_t*)0x200000006370 = 0x8000000000000000; *(uint32_t*)0x200000006378 = 0x74; *(uint32_t*)0x20000000637c = r[21]; *(uint16_t*)0x200000006380 = 0xc0b; *(uint16_t*)0x200000006382 = 0; *(uint64_t*)0x200000006388 = 0x200000006280; memcpy((void*)0x200000006280, "\x70\x10\x15\x9f\x68\xd5\xae\x90\x71\x37\xfa\x70\xd2\x86\xa1\x8b\xa4\x83\x48\xf8\x8d\x1f\xa0\x97\xcf\xe8\x2b\xb9\x55\x9e\x66\xc9\x7b\x4c\xcf\x3a\xcd\x9c\xe2\x40\x54\x49\x07\xf4\x53\x81\x70\xe4\x5e\x0c\x6d\xe8\xad\xfb\x6a\xe9\x4e\xd4\x4b\x61\x6a\x63\x73\x78\x14\xf1\x89\x44\x73\xd9\x51\x9f\x21\x30\xe8\xa0\xe0\x61\xc9\x6e\x46\xa9\x9a\x53\x16\xe4\x6b\x6b\x46\x13\x48\xbb\x03\xdd\xda\xd7\x06\x75\xbc\xda\x59\x21\xbd\xb5\x03\x8c\xc7\xdc\xad\xe7\xba\x3e\x10\x6c\xf3\x15\xe2\xad\x48\x81\x8a\x62\xc7", 123); *(uint64_t*)0x200000006390 = 0x200000006300; memcpy((void*)0x200000006300, "\x13\x68\x24\x8a\xd9\x08\xeb\x42\x50\x81\x23\x9c\x0a\x10\xa5\x14\xef\x06\xf1\x6f\xa3\x8b\xc5\x2b\x0f\x03\xb0\x4d\x36\xf5\x44\x26\x3c\xb4\xa0\xa3\xff\xbb\xaf\xa8\x00\x89\xcf\x8b\x02\x84\x1d\xf4\x33\xc6\xb9\x7d\xa8\xfb\xfe\x28\x5f\xcc\xd0\x5a\xd4", 61); res = syscall(__NR_shmctl, /*shmid=*/0x80000000, /*cmd=*/0xeul, /*buf=*/0x200000006340ul); if (res != -1) { r[34] = *(uint32_t*)0x200000006348; r[35] = *(uint32_t*)0x20000000637c; } break; case 48: memcpy((void*)0x2000000061c0, "fuse\000", 5); memcpy((void*)0x200000006200, "./file0\000", 8); memcpy((void*)0x2000000063c0, "fd", 2); *(uint8_t*)0x2000000063c2 = 0x3d; sprintf((char*)0x2000000063c3, "0x%016llx", (long long)r[33]); *(uint8_t*)0x2000000063d5 = 0x2c; memcpy((void*)0x2000000063d6, "rootmode", 8); *(uint8_t*)0x2000000063de = 0x3d; sprintf((char*)0x2000000063df, "%023llo", (long long)0x1000); *(uint8_t*)0x2000000063f6 = 0x2c; memcpy((void*)0x2000000063f7, "user_id", 7); *(uint8_t*)0x2000000063fe = 0x3d; sprintf((char*)0x2000000063ff, "%020llu", (long long)r[23]); *(uint8_t*)0x200000006413 = 0x2c; memcpy((void*)0x200000006414, "group_id", 8); *(uint8_t*)0x20000000641c = 0x3d; sprintf((char*)0x20000000641d, "%020llu", (long long)r[34]); *(uint8_t*)0x200000006431 = 0x2c; memcpy((void*)0x200000006432, "blksize", 7); *(uint8_t*)0x200000006439 = 0x3d; sprintf((char*)0x20000000643a, "0x%016llx", (long long)0x600); *(uint8_t*)0x20000000644c = 0x2c; memcpy((void*)0x20000000644d, "max_read", 8); *(uint8_t*)0x200000006455 = 0x3d; sprintf((char*)0x200000006456, "0x%016llx", (long long)0); *(uint8_t*)0x200000006468 = 0x2c; memcpy((void*)0x200000006469, "blksize", 7); *(uint8_t*)0x200000006470 = 0x3d; sprintf((char*)0x200000006471, "0x%016llx", (long long)0x1e00); *(uint8_t*)0x200000006483 = 0x2c; memcpy((void*)0x200000006484, "max_read", 8); *(uint8_t*)0x20000000648c = 0x3d; sprintf((char*)0x20000000648d, "0x%016llx", (long long)0x100000001); *(uint8_t*)0x20000000649f = 0x2c; memcpy((void*)0x2000000064a0, "default_permissions", 19); *(uint8_t*)0x2000000064b3 = 0x2c; memcpy((void*)0x2000000064b4, "default_permissions", 19); *(uint8_t*)0x2000000064c7 = 0x2c; memcpy((void*)0x2000000064c8, "euid<", 5); sprintf((char*)0x2000000064cd, "%020llu", (long long)r[13]); *(uint8_t*)0x2000000064e1 = 0x2c; memcpy((void*)0x2000000064e2, "subj_user", 9); *(uint8_t*)0x2000000064eb = 0x3d; memset((void*)0x2000000064ec, 44, 1); *(uint8_t*)0x2000000064ed = 0x2c; memcpy((void*)0x2000000064ee, "uid<", 4); sprintf((char*)0x2000000064f2, "%020llu", (long long)r[26]); *(uint8_t*)0x200000006506 = 0x2c; memcpy((void*)0x200000006507, "audit", 5); *(uint8_t*)0x20000000650c = 0x2c; memcpy((void*)0x20000000650d, "dont_measure", 12); *(uint8_t*)0x200000006519 = 0x2c; *(uint8_t*)0x20000000651a = 0; memcpy((void*)0x200000006540, "\xd3\xaa\x92", 3); syz_mount_image(/*fs=*/0x2000000061c0, /*dir=*/0x200000006200, /*flags=MS_NOATIME*/0x400, /*opts=*/0x2000000063c0, /*chdir=*/0, /*size=*/0, /*img=*/0x200000006540); break; case 49: memcpy((void*)0x200000006580, "/dev/i2c-#\000", 11); syz_open_dev(/*dev=*/0x200000006580, /*id=*/0x800, /*flags=O_NOATIME*/0x40000); break; case 50: memcpy((void*)0x2000000065c0, "cgroup\000", 7); syz_open_procfs(/*pid=*/r[5], /*file=*/0x2000000065c0); break; case 51: syz_open_pts(/*fd=*/r[14], /*flags=O_TRUNC|O_WRONLY*/0x201); break; case 52: syz_pidfd_open(/*pid=*/r[35], /*flags=*/0); break; case 53: res = syscall(__NR_pkey_alloc, /*flags=*/0ul, /*val=PKEY_DISABLE_WRITE*/2ul); if (res != -1) r[36] = res; break; case 54: syz_pkey_set(/*key=*/r[36], /*val=*/0); break; case 55: syz_socket_connect_nvme_tcp(); break; case 56: *(uint8_t*)0x200000006600 = 0x12; *(uint8_t*)0x200000006601 = 1; *(uint16_t*)0x200000006602 = 0x310; *(uint8_t*)0x200000006604 = 0xf; *(uint8_t*)0x200000006605 = 0x36; *(uint8_t*)0x200000006606 = 0x49; *(uint8_t*)0x200000006607 = 8; *(uint16_t*)0x200000006608 = 0x7d0; *(uint16_t*)0x20000000660a = 0x4101; *(uint16_t*)0x20000000660c = 0x4624; *(uint8_t*)0x20000000660e = 1; *(uint8_t*)0x20000000660f = 2; *(uint8_t*)0x200000006610 = 3; *(uint8_t*)0x200000006611 = 1; *(uint8_t*)0x200000006612 = 9; *(uint8_t*)0x200000006613 = 2; *(uint16_t*)0x200000006614 = 0x4f2; *(uint8_t*)0x200000006616 = 3; *(uint8_t*)0x200000006617 = 1; *(uint8_t*)0x200000006618 = 0xa2; *(uint8_t*)0x200000006619 = 0x40; *(uint8_t*)0x20000000661a = 0x64; *(uint8_t*)0x20000000661b = 9; *(uint8_t*)0x20000000661c = 4; *(uint8_t*)0x20000000661d = 0xc2; *(uint8_t*)0x20000000661e = 7; *(uint8_t*)0x20000000661f = 0xa; *(uint8_t*)0x200000006620 = 0x50; *(uint8_t*)0x200000006621 = 0xb3; *(uint8_t*)0x200000006622 = 0x17; *(uint8_t*)0x200000006623 = 7; *(uint8_t*)0x200000006624 = 9; *(uint8_t*)0x200000006625 = 0x21; *(uint16_t*)0x200000006626 = 3; *(uint8_t*)0x200000006628 = 0xdf; *(uint8_t*)0x200000006629 = 1; *(uint8_t*)0x20000000662a = 0x22; *(uint16_t*)0x20000000662b = 0x238; *(uint8_t*)0x20000000662d = 7; *(uint8_t*)0x20000000662e = 0x24; *(uint8_t*)0x20000000662f = 1; *(uint8_t*)0x200000006630 = 2; *(uint8_t*)0x200000006631 = 2; *(uint16_t*)0x200000006632 = 2; *(uint8_t*)0x200000006634 = 0xb; *(uint8_t*)0x200000006635 = 0x24; *(uint8_t*)0x200000006636 = 2; *(uint8_t*)0x200000006637 = 1; *(uint8_t*)0x200000006638 = 0xde; *(uint8_t*)0x200000006639 = 2; *(uint8_t*)0x20000000663a = 0; *(uint8_t*)0x20000000663b = 5; memcpy((void*)0x20000000663c, "\x11\x6d\xf7", 3); *(uint8_t*)0x20000000663f = 0xa; *(uint8_t*)0x200000006640 = 0x24; *(uint8_t*)0x200000006641 = 2; *(uint8_t*)0x200000006642 = 2; *(uint16_t*)0x200000006643 = 8; *(uint16_t*)0x200000006645 = 3; *(uint8_t*)0x200000006647 = 7; memset((void*)0x200000006648, 59, 1); *(uint8_t*)0x200000006649 = 0xa; *(uint8_t*)0x20000000664a = 0x24; *(uint8_t*)0x20000000664b = 2; *(uint8_t*)0x20000000664c = 1; *(uint8_t*)0x20000000664d = 4; *(uint8_t*)0x20000000664e = 3; *(uint8_t*)0x20000000664f = 0x1a; *(uint8_t*)0x200000006650 = 9; memcpy((void*)0x200000006651, "\x0f\x58", 2); *(uint8_t*)0x200000006653 = 0xc; *(uint8_t*)0x200000006654 = 0x24; *(uint8_t*)0x200000006655 = 2; *(uint8_t*)0x200000006656 = 2; *(uint16_t*)0x200000006657 = 0xf270; *(uint16_t*)0x200000006659 = 0x100; *(uint8_t*)0x20000000665b = 7; memcpy((void*)0x20000000665c, "\x31\x29\xf9", 3); *(uint8_t*)0x20000000665f = 0xb; *(uint8_t*)0x200000006660 = 0x24; *(uint8_t*)0x200000006661 = 2; *(uint8_t*)0x200000006662 = 1; *(uint8_t*)0x200000006663 = 1; *(uint8_t*)0x200000006664 = 3; *(uint8_t*)0x200000006665 = 0xf9; *(uint8_t*)0x200000006666 = 0xa3; memcpy((void*)0x200000006667, "\x54\x06\x13", 3); *(uint8_t*)0x20000000666a = 9; *(uint8_t*)0x20000000666b = 5; *(uint8_t*)0x20000000666c = 3; *(uint8_t*)0x20000000666d = 0x38; *(uint16_t*)0x20000000666e = 8; *(uint8_t*)0x200000006670 = 1; *(uint8_t*)0x200000006671 = 0xf9; *(uint8_t*)0x200000006672 = 0; *(uint8_t*)0x200000006673 = 7; *(uint8_t*)0x200000006674 = 0x25; *(uint8_t*)0x200000006675 = 1; *(uint8_t*)0x200000006676 = 1; *(uint8_t*)0x200000006677 = 0x80; *(uint16_t*)0x200000006678 = 0xffb0; *(uint8_t*)0x20000000667a = 0x62; *(uint8_t*)0x20000000667b = 0xe; memcpy((void*)0x20000000667c, "\x0b\xef\x67\x9d\x63\x59\xd7\x1a\x14\x4a\x38\xa2\x28\x34\xd1\x2b\xd1\x9c\x60\xb6\x58\x29\xf4\x4e\xbe\x6b\x12\x58\xa3\xa7\xa0\xcc\x60\xf3\x00\x07\xc2\xc4\xd2\xa3\xcb\x88\xfb\x6b\xeb\x58\x0e\x62\x81\x47\x11\x4f\xfc\x6a\x4e\x39\xb1\x9e\x71\x8f\xc2\xcd\x0f\xa5\xaf\x68\x86\x49\xab\xe3\xdb\x58\xd0\x70\x72\x03\x28\x3b\x6b\xdc\xa0\x5f\x49\xfb\x16\xb3\x61\x8f\xcf\x4d\xd0\x1c\xb2\xef\x35\x09", 96); *(uint8_t*)0x2000000066dc = 9; *(uint8_t*)0x2000000066dd = 5; *(uint8_t*)0x2000000066de = 4; *(uint8_t*)0x2000000066df = 0; *(uint16_t*)0x2000000066e0 = 0x20; *(uint8_t*)0x2000000066e2 = 1; *(uint8_t*)0x2000000066e3 = 2; *(uint8_t*)0x2000000066e4 = 5; *(uint8_t*)0x2000000066e5 = 0x4e; *(uint8_t*)0x2000000066e6 = 0xa; memcpy((void*)0x2000000066e7, "\xaa\xde\x99\xcc\xf3\x48\x06\x1a\xd9\x22\x25\xe0\x5a\x39\x6a\x2e\xbe\x89\x2c\xa6\x5d\xe9\xef\xa6\x65\x82\x1e\x34\x20\x0c\x5c\xaa\x94\x3c\x9b\x1a\x3e\xb1\x08\x28\xe1\x38\x15\xe6\x12\x0c\x47\x87\xa4\xd3\x95\xb1\xe3\x2a\x8b\xa1\xff\xb9\x91\x37\x58\x79\xd5\x17\x86\x2d\xe6\xe9\xcb\x6f\x72\x33\x35\xdd\x15\x6a", 76); *(uint8_t*)0x200000006733 = 9; *(uint8_t*)0x200000006734 = 5; *(uint8_t*)0x200000006735 = 3; *(uint8_t*)0x200000006736 = 0xc; *(uint16_t*)0x200000006737 = 0x3ff; *(uint8_t*)0x200000006739 = 7; *(uint8_t*)0x20000000673a = 0; *(uint8_t*)0x20000000673b = 0x7f; *(uint8_t*)0x20000000673c = 0x33; *(uint8_t*)0x20000000673d = 0xe; memcpy((void*)0x20000000673e, "\x08\xb9\x28\xc5\x63\xb3\xfb\xc1\x36\xbe\xaf\x22\xbf\x46\xe0\xcf\x55\xe3\xf2\x62\x48\x5f\x30\xb2\x8a\x3f\x9a\x3e\xc9\x01\xce\x80\x66\xc6\x78\x8d\x46\x95\x26\xc5\x5b\xf0\xc2\xb3\xca\x50\x05\x53\x9a", 49); *(uint8_t*)0x20000000676f = 9; *(uint8_t*)0x200000006770 = 5; *(uint8_t*)0x200000006771 = 0xb; *(uint8_t*)0x200000006772 = 4; *(uint16_t*)0x200000006773 = 0x3ff; *(uint8_t*)0x200000006775 = 3; *(uint8_t*)0x200000006776 = 0x40; *(uint8_t*)0x200000006777 = 0x7f; *(uint8_t*)0x200000006778 = 7; *(uint8_t*)0x200000006779 = 0x25; *(uint8_t*)0x20000000677a = 1; *(uint8_t*)0x20000000677b = 0x87; *(uint8_t*)0x20000000677c = 9; *(uint16_t*)0x20000000677d = 0x4e; *(uint8_t*)0x20000000677f = 0xcb; *(uint8_t*)0x200000006780 = 0x11; memcpy((void*)0x200000006781, "\x3b\x9d\xca\xcc\x67\x90\x86\xd7\x8f\x92\x7a\xb6\x34\x93\x5a\x18\x81\x3b\x23\xcc\xef\xfe\xa6\x9b\x63\x0a\xa9\x7c\xc4\x69\x90\x7a\xfa\xc2\xa3\x03\x27\xad\xeb\x90\x1d\x9f\xb9\x00\xad\x82\x13\x80\x98\xcb\xff\x5f\xed\x7f\xee\x2c\x7d\x70\x12\x90\xce\x4a\xd0\x20\xa9\xda\x29\x67\x5f\x8f\x05\x13\x99\x87\x9d\xb5\x70\x22\xb8\x9c\x99\x01\x20\x51\x3a\xaa\x70\xc5\x18\x47\xb1\x28\xdd\x73\xbd\xea\x25\xcb\xb5\x45\xc1\xae\x83\x52\x02\x4c\xa9\x3c\xd7\xea\x88\x1c\xbb\x09\x20\xee\xde\xf0\x72\xef\xe9\xda\x61\xb7\xbd\x77\xa3\xc0\x85\xd7\x12\xc1\x42\xca\x88\xc3\x9f\x8e\xdd\x17\xd6\xfb\x9a\x7e\xf8\xd0\xfa\xd5\xa1\x5a\x33\x3e\x7e\xd0\x5e\x7e\x9a\xe6\xe2\xa4\x64\xc3\x15\x9a\xb1\xa6\x0e\x33\xaf\xbf\x29\xa2\xf6\x78\xc8\xc9\xe2\xf8\xf7\xa8\xd0\x3d\x55\x82\x52\x9b\x27\x7b\x4b\xe8\x55\x83\xe5\xd8\x1b\xc9\x57\x49\x77\x30\x42", 201); *(uint8_t*)0x20000000684a = 9; *(uint8_t*)0x20000000684b = 5; *(uint8_t*)0x20000000684c = 1; *(uint8_t*)0x20000000684d = 3; *(uint16_t*)0x20000000684e = 8; *(uint8_t*)0x200000006850 = 0xe; *(uint8_t*)0x200000006851 = 8; *(uint8_t*)0x200000006852 = 0x7f; *(uint8_t*)0x200000006853 = 0x72; *(uint8_t*)0x200000006854 = 6; memcpy((void*)0x200000006855, "\x6e\xe2\x41\x04\x69\xb7\xa8\xb2\x3e\x32\x55\xa5\x54\xb6\x3d\x5b\xeb\x1b\x34\xb4\x87\x18\x94\xe3\xdf\x69\xe7\x55\x8c\xe5\x6c\xc8\x3b\x83\xae\x1a\xc9\xd1\xde\xc0\x88\x2d\x04\x0a\x78\x01\xa3\x00\xc7\xea\xc2\x6d\x78\xd2\xda\xff\x6b\xd4\x7c\xac\xa5\x00\xd4\x6c\x1b\x5a\x0b\x9e\x1a\xda\x0e\x7b\x60\x6b\x6f\xd6\xb3\x9d\xb8\x1c\x7c\x95\x4c\x04\xd4\xed\xe9\x80\xea\x2c\xa8\x0b\x11\x3b\xdb\x4b\xe7\x47\xe1\xb6\xdc\x92\x81\xd7\x7e\x85\x68\x3a\xaa\xc6\x53\x4c", 112); *(uint8_t*)0x2000000068c5 = 9; *(uint8_t*)0x2000000068c6 = 5; *(uint8_t*)0x2000000068c7 = 0xb; *(uint8_t*)0x2000000068c8 = 0xc; *(uint16_t*)0x2000000068c9 = 0x60e1; *(uint8_t*)0x2000000068cb = 0; *(uint8_t*)0x2000000068cc = 1; *(uint8_t*)0x2000000068cd = 7; *(uint8_t*)0x2000000068ce = 9; *(uint8_t*)0x2000000068cf = 5; *(uint8_t*)0x2000000068d0 = 0; *(uint8_t*)0x2000000068d1 = 0; *(uint16_t*)0x2000000068d2 = 0x10; *(uint8_t*)0x2000000068d4 = 5; *(uint8_t*)0x2000000068d5 = 1; *(uint8_t*)0x2000000068d6 = 0x77; *(uint8_t*)0x2000000068d7 = 9; *(uint8_t*)0x2000000068d8 = 5; *(uint8_t*)0x2000000068d9 = 5; *(uint8_t*)0x2000000068da = 0; *(uint16_t*)0x2000000068db = 0x208; *(uint8_t*)0x2000000068dd = 0x1b; *(uint8_t*)0x2000000068de = 9; *(uint8_t*)0x2000000068df = 7; *(uint8_t*)0x2000000068e0 = 9; *(uint8_t*)0x2000000068e1 = 5; *(uint8_t*)0x2000000068e2 = 0xf; *(uint8_t*)0x2000000068e3 = 0; *(uint16_t*)0x2000000068e4 = 0x40; *(uint8_t*)0x2000000068e6 = 0x30; *(uint8_t*)0x2000000068e7 = 5; *(uint8_t*)0x2000000068e8 = 7; *(uint8_t*)0x2000000068e9 = 0x50; *(uint8_t*)0x2000000068ea = 6; memcpy((void*)0x2000000068eb, "\x01\x1d\xaf\x9a\xd3\xae\xa9\x56\xd0\x18\x4e\x89\x07\xd7\xb0\xb0\xa6\xaa\x9e\x92\x1a\xc6\x4d\x7a\x9e\x5a\x0c\xe5\xb5\xe0\xaf\xb4\x78\x68\xc9\xc4\xa7\x6b\x65\x09\x83\x5b\xf9\xee\x45\xa7\x89\x1e\xaa\xd1\x72\xa8\x75\x63\x4f\x7f\x36\x26\x01\x24\x66\x9b\x2d\x1b\x04\xc2\xfd\xa3\x8c\xc9\x36\x92\x1c\xb5\x61\x24\x5e\xfa", 78); *(uint8_t*)0x200000006939 = 0xb7; *(uint8_t*)0x20000000693a = 0x21; memcpy((void*)0x20000000693b, "\x53\x54\x2a\x37\x44\x9c\x9d\x1a\x4e\x69\x6a\x99\x52\x7d\x5a\xd5\xbd\xad\x1c\x7e\x72\x41\x28\xdf\x50\x29\x5a\xa0\xc6\x14\x01\xca\x6c\xd5\xcd\x35\x69\x77\xf6\x17\xe8\xb1\x14\x48\x46\x62\x69\x11\x6a\xf9\x3b\x9d\xce\x05\xde\xd4\x87\x92\x71\x9f\x65\xbf\xa9\x1d\xa1\x6b\x85\xee\x1d\x62\x36\x08\x4d\x81\x70\xf9\x7c\x0a\x74\xf1\x02\x66\x3c\x64\x5b\x0e\xe1\xb0\xfa\x79\x04\xe6\x46\x43\x8d\x8b\x16\x21\x86\x04\x56\x1c\x1a\xbb\x98\x28\x9e\x3e\xcb\xa8\x8e\x78\xf6\x73\x61\x47\x87\x74\x46\x2a\x4d\x82\x74\x96\x46\x45\x20\x04\xb2\x48\x20\x82\xe9\xc1\xb2\xf2\x97\x24\x19\xf6\xf7\x52\xe1\xbe\xc5\xe1\x92\x5f\xce\x21\x5e\xdb\x82\x65\x34\x4d\xa8\x5b\x85\x16\x4d\xb3\xc6\x33\xe4\xe4\x31\xfe\xc4\xc6\x09\x66\x4e\xac\x2b\x6b\x1f\x5f\x7b\xdc\x10", 181); *(uint8_t*)0x2000000069f0 = 9; *(uint8_t*)0x2000000069f1 = 5; *(uint8_t*)0x2000000069f2 = 0xc; *(uint8_t*)0x2000000069f3 = 0x10; *(uint16_t*)0x2000000069f4 = 0x10; *(uint8_t*)0x2000000069f6 = 3; *(uint8_t*)0x2000000069f7 = 0xf9; *(uint8_t*)0x2000000069f8 = -1; *(uint8_t*)0x2000000069f9 = 0xba; *(uint8_t*)0x2000000069fa = 0x23; memcpy((void*)0x2000000069fb, "\x5c\x48\xa5\x1f\x46\xfa\x07\x8d\x84\xce\x43\x4e\x72\x2a\x7f\xa4\xe7\x02\x1a\xe9\xd9\xb7\x66\x77\x36\x6d\xe6\xa1\x0a\xb3\xe9\x4e\x09\x69\xd7\xfc\x2a\x24\x53\x6e\x11\x50\xd9\x46\x72\xc5\x41\x8b\x02\x95\x1d\xef\x7e\x20\xc7\xdf\xe0\xaa\x26\xad\xbf\x0b\xfd\x8f\x6d\xd3\x51\xfa\x30\x99\x07\x13\x53\x71\x34\xaf\x9c\x14\xfa\x84\xde\xe2\xb9\x5a\xf8\xe1\x34\x54\x2b\x5a\x1a\xd5\x40\x32\x9a\x97\xcb\xdd\x1a\x24\x22\xf1\x3e\x6e\x03\xb4\x9f\x71\x05\xa6\xbf\x49\x00\xea\x72\x3f\xbe\x14\xf2\x1d\x18\x2a\xee\xf2\xcf\x51\x62\x59\x1f\x8b\xd3\x8b\x85\xd4\x5d\x72\x3c\xef\x02\x13\x2b\x5e\x45\x46\x7d\xd8\xd4\x30\xc3\x78\xb8\xbf\x2d\x98\x40\x32\x67\x01\x03\x79\xde\x7b\xd0\x4c\x80\x0d\xfd\x5f\xae\x0c\x0d\xda\xc0\xb5\xcf\xfd\xe9\x8c\xa4\x00\xdc\xe3\x0d\xdd", 184); *(uint8_t*)0x200000006ab3 = 9; *(uint8_t*)0x200000006ab4 = 4; *(uint8_t*)0x200000006ab5 = 0xfc; *(uint8_t*)0x200000006ab6 = 4; *(uint8_t*)0x200000006ab7 = 1; *(uint8_t*)0x200000006ab8 = -1; *(uint8_t*)0x200000006ab9 = 6; *(uint8_t*)0x200000006aba = 0x39; *(uint8_t*)0x200000006abb = 0xc; *(uint8_t*)0x200000006abc = 9; *(uint8_t*)0x200000006abd = 5; *(uint8_t*)0x200000006abe = 0; *(uint8_t*)0x200000006abf = 2; *(uint16_t*)0x200000006ac0 = 0x400; *(uint8_t*)0x200000006ac2 = 9; *(uint8_t*)0x200000006ac3 = 0xdf; *(uint8_t*)0x200000006ac4 = 2; *(uint8_t*)0x200000006ac5 = 7; *(uint8_t*)0x200000006ac6 = 0x25; *(uint8_t*)0x200000006ac7 = 1; *(uint8_t*)0x200000006ac8 = 3; *(uint8_t*)0x200000006ac9 = 8; *(uint16_t*)0x200000006aca = 0x8000; *(uint8_t*)0x200000006acc = 9; *(uint8_t*)0x200000006acd = 4; *(uint8_t*)0x200000006ace = 0x9d; *(uint8_t*)0x200000006acf = 1; *(uint8_t*)0x200000006ad0 = 3; *(uint8_t*)0x200000006ad1 = 0x48; *(uint8_t*)0x200000006ad2 = 0x48; *(uint8_t*)0x200000006ad3 = 0x40; *(uint8_t*)0x200000006ad4 = 0xa; *(uint8_t*)0x200000006ad5 = 9; *(uint8_t*)0x200000006ad6 = 5; *(uint8_t*)0x200000006ad7 = 1; *(uint8_t*)0x200000006ad8 = 0x10; *(uint16_t*)0x200000006ad9 = 0x40; *(uint8_t*)0x200000006adb = 2; *(uint8_t*)0x200000006adc = 0xf1; *(uint8_t*)0x200000006add = 0xc; *(uint8_t*)0x200000006ade = 7; *(uint8_t*)0x200000006adf = 0x25; *(uint8_t*)0x200000006ae0 = 1; *(uint8_t*)0x200000006ae1 = 0x81; *(uint8_t*)0x200000006ae2 = 0x81; *(uint16_t*)0x200000006ae3 = 5; *(uint8_t*)0x200000006ae5 = 9; *(uint8_t*)0x200000006ae6 = 5; *(uint8_t*)0x200000006ae7 = 7; *(uint8_t*)0x200000006ae8 = 8; *(uint16_t*)0x200000006ae9 = 0x40; *(uint8_t*)0x200000006aeb = 6; *(uint8_t*)0x200000006aec = 0; *(uint8_t*)0x200000006aed = 1; *(uint8_t*)0x200000006aee = 7; *(uint8_t*)0x200000006aef = 0x25; *(uint8_t*)0x200000006af0 = 1; *(uint8_t*)0x200000006af1 = 2; *(uint8_t*)0x200000006af2 = 0; *(uint16_t*)0x200000006af3 = 0x10; *(uint8_t*)0x200000006af5 = 6; *(uint8_t*)0x200000006af6 = 0xe; memcpy((void*)0x200000006af7, "\x55\x5d\xc7\x8c", 4); *(uint8_t*)0x200000006afb = 9; *(uint8_t*)0x200000006afc = 5; *(uint8_t*)0x200000006afd = 5; *(uint8_t*)0x200000006afe = 4; *(uint16_t*)0x200000006aff = 0x200; *(uint8_t*)0x200000006b01 = 9; *(uint8_t*)0x200000006b02 = 0x40; *(uint8_t*)0x200000006b03 = 3; *(uint32_t*)0x200000006c00 = 0xa; *(uint64_t*)0x200000006c04 = 0x200000006b40; *(uint8_t*)0x200000006b40 = 0xa; *(uint8_t*)0x200000006b41 = 6; *(uint16_t*)0x200000006b42 = 0x200; *(uint8_t*)0x200000006b44 = 0x3b; *(uint8_t*)0x200000006b45 = 5; *(uint8_t*)0x200000006b46 = 9; *(uint8_t*)0x200000006b47 = 0x40; *(uint8_t*)0x200000006b48 = 0xa4; *(uint8_t*)0x200000006b49 = 0; *(uint32_t*)0x200000006c0c = 0x30; *(uint64_t*)0x200000006c10 = 0x200000006b80; *(uint8_t*)0x200000006b80 = 5; *(uint8_t*)0x200000006b81 = 0xf; *(uint16_t*)0x200000006b82 = 0x30; *(uint8_t*)0x200000006b84 = 3; *(uint8_t*)0x200000006b85 = 3; *(uint8_t*)0x200000006b86 = 0x10; *(uint8_t*)0x200000006b87 = 0xb; *(uint8_t*)0x200000006b88 = 0x10; *(uint8_t*)0x200000006b89 = 0x10; *(uint8_t*)0x200000006b8a = 0xa; *(uint8_t*)0x200000006b8b = 0x1c; STORE_BY_BITMASK(uint32_t, , 0x200000006b8c, 1, 0, 5); STORE_BY_BITMASK(uint32_t, , 0x200000006b8c, 0x7ffffd3, 5, 27); *(uint16_t*)0x200000006b90 = 0xff00; *(uint16_t*)0x200000006b92 = 0x1fb; *(uint32_t*)0x200000006b94 = 0; *(uint8_t*)0x200000006b98 = 0x18; *(uint8_t*)0x200000006b99 = 0x10; *(uint8_t*)0x200000006b9a = 0xa; *(uint8_t*)0x200000006b9b = 0xf; STORE_BY_BITMASK(uint32_t, , 0x200000006b9c, 3, 0, 5); STORE_BY_BITMASK(uint32_t, , 0x200000006b9c, 8, 5, 27); *(uint16_t*)0x200000006ba0 = 0xff00; *(uint16_t*)0x200000006ba2 = 0xd00; *(uint32_t*)0x200000006ba4 = 0; *(uint32_t*)0x200000006ba8 = 0xffc0cf; *(uint32_t*)0x200000006bac = 0xff0000; *(uint32_t*)0x200000006c18 = 1; *(uint32_t*)0x200000006c1c = 4; *(uint64_t*)0x200000006c20 = 0x200000006bc0; *(uint8_t*)0x200000006bc0 = 4; *(uint8_t*)0x200000006bc1 = 3; *(uint16_t*)0x200000006bc2 = 0x42f; res = -1; res = syz_usb_connect(/*speed=USB_SPEED_HIGH*/3, /*dev_len=*/0x504, /*dev=*/0x200000006600, /*conn_descs=*/0x200000006c00); if (res != -1) r[37] = res; break; case 57: *(uint8_t*)0x200000006c40 = 0x12; *(uint8_t*)0x200000006c41 = 1; *(uint16_t*)0x200000006c42 = 0x200; *(uint8_t*)0x200000006c44 = -1; *(uint8_t*)0x200000006c45 = -1; *(uint8_t*)0x200000006c46 = -1; *(uint8_t*)0x200000006c47 = 0x40; *(uint16_t*)0x200000006c48 = 0xcf3; *(uint16_t*)0x200000006c4a = 0x9271; *(uint16_t*)0x200000006c4c = 0x108; *(uint8_t*)0x200000006c4e = 1; *(uint8_t*)0x200000006c4f = 2; *(uint8_t*)0x200000006c50 = 3; *(uint8_t*)0x200000006c51 = 1; *(uint8_t*)0x200000006c52 = 9; *(uint8_t*)0x200000006c53 = 2; *(uint16_t*)0x200000006c54 = 0x48; *(uint8_t*)0x200000006c56 = 1; *(uint8_t*)0x200000006c57 = 1; *(uint8_t*)0x200000006c58 = 0; *(uint8_t*)0x200000006c59 = 0x80; *(uint8_t*)0x200000006c5a = 0xfa; *(uint8_t*)0x200000006c5b = 9; *(uint8_t*)0x200000006c5c = 4; *(uint8_t*)0x200000006c5d = 0; *(uint8_t*)0x200000006c5e = 0; *(uint8_t*)0x200000006c5f = 6; *(uint8_t*)0x200000006c60 = -1; *(uint8_t*)0x200000006c61 = 0; *(uint8_t*)0x200000006c62 = 0; *(uint8_t*)0x200000006c63 = 0; *(uint8_t*)0x200000006c64 = 9; *(uint8_t*)0x200000006c65 = 5; *(uint8_t*)0x200000006c66 = 1; *(uint8_t*)0x200000006c67 = 2; *(uint16_t*)0x200000006c68 = 0x200; *(uint8_t*)0x200000006c6a = 0; *(uint8_t*)0x200000006c6b = 0; *(uint8_t*)0x200000006c6c = 0; *(uint8_t*)0x200000006c6d = 9; *(uint8_t*)0x200000006c6e = 5; *(uint8_t*)0x200000006c6f = 0x82; *(uint8_t*)0x200000006c70 = 2; *(uint16_t*)0x200000006c71 = 0x200; *(uint8_t*)0x200000006c73 = 0; *(uint8_t*)0x200000006c74 = 0; *(uint8_t*)0x200000006c75 = 0; *(uint8_t*)0x200000006c76 = 9; *(uint8_t*)0x200000006c77 = 5; *(uint8_t*)0x200000006c78 = 0x83; *(uint8_t*)0x200000006c79 = 3; *(uint16_t*)0x200000006c7a = 0x40; *(uint8_t*)0x200000006c7c = 1; *(uint8_t*)0x200000006c7d = 0; *(uint8_t*)0x200000006c7e = 0; *(uint8_t*)0x200000006c7f = 9; *(uint8_t*)0x200000006c80 = 5; *(uint8_t*)0x200000006c81 = 4; *(uint8_t*)0x200000006c82 = 3; *(uint16_t*)0x200000006c83 = 0x40; *(uint8_t*)0x200000006c85 = 1; *(uint8_t*)0x200000006c86 = 0; *(uint8_t*)0x200000006c87 = 0; *(uint8_t*)0x200000006c88 = 9; *(uint8_t*)0x200000006c89 = 5; *(uint8_t*)0x200000006c8a = 5; *(uint8_t*)0x200000006c8b = 2; *(uint16_t*)0x200000006c8c = 0x200; *(uint8_t*)0x200000006c8e = 0; *(uint8_t*)0x200000006c8f = 0; *(uint8_t*)0x200000006c90 = 0; *(uint8_t*)0x200000006c91 = 9; *(uint8_t*)0x200000006c92 = 5; *(uint8_t*)0x200000006c93 = 6; *(uint8_t*)0x200000006c94 = 2; *(uint16_t*)0x200000006c95 = 0x200; *(uint8_t*)0x200000006c97 = 0; *(uint8_t*)0x200000006c98 = 0; *(uint8_t*)0x200000006c99 = 0; res = -1; res = syz_usb_connect_ath9k(/*speed=*/3, /*dev_len=*/0x5a, /*dev=*/0x200000006c40, /*conn_descs=*/0); if (res != -1) r[38] = res; break; case 58: *(uint8_t*)0x200000006cc0 = 0x12; *(uint8_t*)0x200000006cc1 = 1; *(uint16_t*)0x200000006cc2 = 0x310; *(uint8_t*)0x200000006cc4 = 2; *(uint8_t*)0x200000006cc5 = 0; *(uint8_t*)0x200000006cc6 = 0; *(uint8_t*)0x200000006cc7 = 8; *(uint16_t*)0x200000006cc8 = 0x525; *(uint16_t*)0x200000006cca = 0xa4a1; *(uint16_t*)0x200000006ccc = 0x40; *(uint8_t*)0x200000006cce = 1; *(uint8_t*)0x200000006ccf = 2; *(uint8_t*)0x200000006cd0 = 3; *(uint8_t*)0x200000006cd1 = 1; *(uint8_t*)0x200000006cd2 = 9; *(uint8_t*)0x200000006cd3 = 2; *(uint16_t*)0x200000006cd4 = 0x7d; *(uint8_t*)0x200000006cd6 = 1; *(uint8_t*)0x200000006cd7 = 1; *(uint8_t*)0x200000006cd8 = 6; *(uint8_t*)0x200000006cd9 = 0x10; *(uint8_t*)0x200000006cda = 0xb; *(uint8_t*)0x200000006cdb = 9; *(uint8_t*)0x200000006cdc = 4; *(uint8_t*)0x200000006cdd = 0; *(uint8_t*)0x200000006cde = 4; *(uint8_t*)0x200000006cdf = 3; *(uint8_t*)0x200000006ce0 = 2; *(uint8_t*)0x200000006ce1 = 6; *(uint8_t*)0x200000006ce2 = 0; *(uint8_t*)0x200000006ce3 = 0xe; *(uint8_t*)0x200000006ce4 = 0xb; *(uint8_t*)0x200000006ce5 = 0x24; *(uint8_t*)0x200000006ce6 = 6; *(uint8_t*)0x200000006ce7 = 0; *(uint8_t*)0x200000006ce8 = 0; memcpy((void*)0x200000006ce9, "\xd6\x01\x32\xf1\x49\xc6", 6); *(uint8_t*)0x200000006cef = 5; *(uint8_t*)0x200000006cf0 = 0x24; *(uint8_t*)0x200000006cf1 = 0; *(uint16_t*)0x200000006cf2 = 0xbb8; *(uint8_t*)0x200000006cf4 = 0xd; *(uint8_t*)0x200000006cf5 = 0x24; *(uint8_t*)0x200000006cf6 = 0xf; *(uint8_t*)0x200000006cf7 = 1; *(uint32_t*)0x200000006cf8 = 7; *(uint16_t*)0x200000006cfc = 0x32a; *(uint16_t*)0x200000006cfe = 8; *(uint8_t*)0x200000006d00 = 0x1f; *(uint8_t*)0x200000006d01 = 5; *(uint8_t*)0x200000006d02 = 0x24; *(uint8_t*)0x200000006d03 = 0x15; *(uint16_t*)0x200000006d04 = 0x101; *(uint8_t*)0x200000006d06 = 0x15; *(uint8_t*)0x200000006d07 = 0x24; *(uint8_t*)0x200000006d08 = 0x12; *(uint16_t*)0x200000006d09 = 0xfffc; *(uint64_t*)0x200000006d0b = 0x14f5e048ba817a3; *(uint64_t*)0x200000006d13 = 0x2a397ecbffc007a6; *(uint8_t*)0x200000006d1b = 7; *(uint8_t*)0x200000006d1c = 0x24; *(uint8_t*)0x200000006d1d = 0xa; *(uint8_t*)0x200000006d1e = 0xb; *(uint8_t*)0x200000006d1f = 9; *(uint8_t*)0x200000006d20 = 0xf; *(uint8_t*)0x200000006d21 = 2; *(uint8_t*)0x200000006d22 = 5; *(uint8_t*)0x200000006d23 = 0x24; *(uint8_t*)0x200000006d24 = 1; *(uint8_t*)0x200000006d25 = 1; *(uint8_t*)0x200000006d26 = -1; *(uint8_t*)0x200000006d27 = 5; *(uint8_t*)0x200000006d28 = 0x24; *(uint8_t*)0x200000006d29 = 0x15; *(uint16_t*)0x200000006d2a = 0x7ff; *(uint8_t*)0x200000006d2c = 8; *(uint8_t*)0x200000006d2d = 0x24; *(uint8_t*)0x200000006d2e = 0x1c; *(uint16_t*)0x200000006d2f = 5; *(uint8_t*)0x200000006d31 = 0x32; *(uint16_t*)0x200000006d32 = 0xa; *(uint8_t*)0x200000006d34 = 9; *(uint8_t*)0x200000006d35 = 5; *(uint8_t*)0x200000006d36 = 0x81; *(uint8_t*)0x200000006d37 = 3; *(uint16_t*)0x200000006d38 = 0x10; *(uint8_t*)0x200000006d3a = 7; *(uint8_t*)0x200000006d3b = 0x99; *(uint8_t*)0x200000006d3c = 0xb2; *(uint8_t*)0x200000006d3d = 9; *(uint8_t*)0x200000006d3e = 5; *(uint8_t*)0x200000006d3f = 0x82; *(uint8_t*)0x200000006d40 = 2; *(uint16_t*)0x200000006d41 = 8; *(uint8_t*)0x200000006d43 = 0x1a; *(uint8_t*)0x200000006d44 = 7; *(uint8_t*)0x200000006d45 = 0xc4; *(uint8_t*)0x200000006d46 = 9; *(uint8_t*)0x200000006d47 = 5; *(uint8_t*)0x200000006d48 = 3; *(uint8_t*)0x200000006d49 = 2; *(uint16_t*)0x200000006d4a = 0x3ff; *(uint8_t*)0x200000006d4c = 0xa6; *(uint8_t*)0x200000006d4d = 3; *(uint8_t*)0x200000006d4e = 0xa7; *(uint32_t*)0x200000007240 = 0xa; *(uint64_t*)0x200000007244 = 0x200000006d80; *(uint8_t*)0x200000006d80 = 0xa; *(uint8_t*)0x200000006d81 = 6; *(uint16_t*)0x200000006d82 = 0x300; *(uint8_t*)0x200000006d84 = 0xfb; *(uint8_t*)0x200000006d85 = 3; *(uint8_t*)0x200000006d86 = 0xc; *(uint8_t*)0x200000006d87 = -1; *(uint8_t*)0x200000006d88 = 1; *(uint8_t*)0x200000006d89 = 0; *(uint32_t*)0x20000000724c = 0x3c; *(uint64_t*)0x200000007250 = 0x200000006dc0; *(uint8_t*)0x200000006dc0 = 5; *(uint8_t*)0x200000006dc1 = 0xf; *(uint16_t*)0x200000006dc2 = 0x3c; *(uint8_t*)0x200000006dc4 = 6; *(uint8_t*)0x200000006dc5 = 7; *(uint8_t*)0x200000006dc6 = 0x10; *(uint8_t*)0x200000006dc7 = 2; STORE_BY_BITMASK(uint32_t, , 0x200000006dc8, 4, 0, 8); STORE_BY_BITMASK(uint32_t, , 0x200000006dc9, 7, 0, 4); STORE_BY_BITMASK(uint32_t, , 0x200000006dc9, 7, 4, 4); STORE_BY_BITMASK(uint32_t, , 0x200000006dca, 0x56a9, 0, 16); *(uint8_t*)0x200000006dcc = 0xb; *(uint8_t*)0x200000006dcd = 0x10; *(uint8_t*)0x200000006dce = 1; *(uint8_t*)0x200000006dcf = 4; *(uint16_t*)0x200000006dd0 = 0x42; *(uint8_t*)0x200000006dd2 = 2; *(uint8_t*)0x200000006dd3 = 3; *(uint16_t*)0x200000006dd4 = 0x63ac; *(uint8_t*)0x200000006dd6 = 9; *(uint8_t*)0x200000006dd7 = 3; *(uint8_t*)0x200000006dd8 = 0x10; *(uint8_t*)0x200000006dd9 = 0xb; *(uint8_t*)0x200000006dda = 7; *(uint8_t*)0x200000006ddb = 0x10; *(uint8_t*)0x200000006ddc = 2; STORE_BY_BITMASK(uint32_t, , 0x200000006ddd, 0x1a, 0, 8); STORE_BY_BITMASK(uint32_t, , 0x200000006dde, 7, 0, 4); STORE_BY_BITMASK(uint32_t, , 0x200000006dde, 0xb, 4, 4); STORE_BY_BITMASK(uint32_t, , 0x200000006ddf, 0xd5, 0, 16); *(uint8_t*)0x200000006de1 = 0x10; *(uint8_t*)0x200000006de2 = 0x10; *(uint8_t*)0x200000006de3 = 0xa; *(uint8_t*)0x200000006de4 = 0x7f; STORE_BY_BITMASK(uint32_t, , 0x200000006de5, 1, 0, 5); STORE_BY_BITMASK(uint32_t, , 0x200000006de5, 0x12f, 5, 27); *(uint16_t*)0x200000006de9 = 0xf00; *(uint16_t*)0x200000006deb = 1; *(uint32_t*)0x200000006ded = 0x3fc0; *(uint8_t*)0x200000006df1 = 0xb; *(uint8_t*)0x200000006df2 = 0x10; *(uint8_t*)0x200000006df3 = 1; *(uint8_t*)0x200000006df4 = 8; *(uint16_t*)0x200000006df5 = 0x40; *(uint8_t*)0x200000006df7 = 7; *(uint8_t*)0x200000006df8 = 5; *(uint16_t*)0x200000006df9 = 2; *(uint8_t*)0x200000006dfb = 4; *(uint32_t*)0x200000007258 = 8; *(uint32_t*)0x20000000725c = 0x78; *(uint64_t*)0x200000007260 = 0x200000006e00; *(uint8_t*)0x200000006e00 = 0x78; *(uint8_t*)0x200000006e01 = 3; memcpy((void*)0x200000006e02, "\xd7\xb4\xca\xdb\x72\xdc\xe2\x7c\xa7\xfb\x52\x09\xaa\xd1\xb3\x58\x5c\x81\x88\xf0\x61\x26\xd3\xf1\x8e\xdd\x4c\xfa\x47\xad\xdb\xd2\xa6\x71\x5d\xd4\xad\xfa\x69\x7f\x02\xbc\xb0\x89\xed\x20\x13\x26\x88\x85\xf9\xc7\x85\xbd\x7c\x5d\x4e\xe5\x0d\xe3\xce\xcd\x7a\x9d\x0b\x7b\x2e\x70\x82\x26\xe8\xac\xb1\xe9\x08\xb1\xf5\xc0\xc2\xa8\x13\x24\x65\xe4\x51\xfe\x49\xf1\x5e\x60\xc8\xd3\xb9\xc8\x43\x05\xd0\xdd\x8f\x63\x44\x80\x05\x02\x59\xca\xc3\xce\x9c\xfc\x95\x09\x2b\xd7\xe4\x91\x86\x6d", 118); *(uint32_t*)0x200000007268 = 0x13; *(uint64_t*)0x20000000726c = 0x200000006e80; *(uint8_t*)0x200000006e80 = 0x13; *(uint8_t*)0x200000006e81 = 3; memcpy((void*)0x200000006e82, "\x7d\x97\xd9\xeb\x8a\xf2\x94\x3b\x99\x85\xd3\x0c\xaa\xea\xd8\x9b\x5a", 17); *(uint32_t*)0x200000007274 = 4; *(uint64_t*)0x200000007278 = 0x200000006ec0; *(uint8_t*)0x200000006ec0 = 4; *(uint8_t*)0x200000006ec1 = 3; *(uint16_t*)0x200000006ec2 = 0x44a; *(uint32_t*)0x200000007280 = 4; *(uint64_t*)0x200000007284 = 0x200000006f00; *(uint8_t*)0x200000006f00 = 4; *(uint8_t*)0x200000006f01 = 3; *(uint16_t*)0x200000006f02 = 0x1c09; *(uint32_t*)0x20000000728c = 0x93; *(uint64_t*)0x200000007290 = 0x200000006f40; *(uint8_t*)0x200000006f40 = 0x93; *(uint8_t*)0x200000006f41 = 3; memcpy((void*)0x200000006f42, "\xa7\xe5\x52\x92\x38\xf7\x96\xc9\x00\x0c\x75\x3f\x41\xb8\x18\x31\x40\xf3\x91\x4b\x76\xbf\x1c\x42\x8e\xbe\x8d\x39\xc6\xf0\x72\xb4\x81\xec\xad\x74\x62\x74\xe7\xc5\x38\x79\x0d\x8c\x73\x0d\x20\x51\x7a\x22\x44\xa3\x78\x1b\x11\x5c\x07\xd4\x0e\x9e\xc9\xc0\x59\xf1\x2d\x0d\x15\xf4\x6c\xcf\x0c\xde\x26\xef\xa9\xd0\x2a\x11\x9e\x2c\xc5\x62\x7c\x7f\x42\x41\x24\x4d\x08\x43\xef\x00\x18\xb1\x2f\xc3\xcd\x46\x7b\x5f\xdc\xe5\x8a\x69\x75\xd0\x7a\xc3\x52\xa4\x2f\x16\x15\x17\x8d\xcb\x09\x90\xae\xca\x46\x46\x13\x06\x81\x6b\xec\xde\xb8\x96\xba\xc7\x65\xde\xd8\x1e\xbd\x75\xba\x4d\x97\x22\x9b\x15\xa9", 145); *(uint32_t*)0x200000007298 = 0xc2; *(uint64_t*)0x20000000729c = 0x200000007000; *(uint8_t*)0x200000007000 = 0xc2; *(uint8_t*)0x200000007001 = 3; memcpy((void*)0x200000007002, "\xd5\xa3\xd4\x83\x01\x2b\x31\xe4\x9d\xfa\x33\xfd\x95\x93\xb4\xb6\x68\xaa\x6f\x3f\x39\x30\x18\x37\xd9\x51\xda\xf2\x56\x31\x68\x19\xf5\xe7\x1f\xa6\x51\xbb\x06\xb2\xaf\x65\xaf\x27\xc7\xbf\x0f\xda\x1e\xaa\x1e\x32\x23\x1b\x75\xf4\xd0\x6d\x49\x23\xc7\x60\x13\xe9\xd7\x6a\x12\x20\x28\x16\xff\x87\x40\xa9\xfb\x4f\x2e\xce\xb2\x7b\xd2\xe1\xab\x1e\x7b\xd4\xba\x73\x14\xb3\x3d\x15\xe0\xfe\x65\xaa\x2b\x2e\x7f\xfb\x32\x36\xcb\x61\x54\x93\x39\x1f\xea\xb3\xbf\xb8\x28\x18\x2f\xb6\x0c\x4f\xd6\xfe\xf4\x22\xe1\x06\xf3\x84\xbe\x63\x39\x05\xca\x1a\xaf\x83\xd9\xdd\xb2\xa2\x90\x2e\x2a\x11\x7d\xe4\xe5\x96\x14\x58\x09\xb3\xb3\x4b\x1e\xa4\x32\xb4\x12\x39\x1f\xfb\x25\xac\x25\x5e\x7d\xa1\x1d\x99\x4e\x7e\x9e\x98\xe0\x72\x3a\x27\x57\xe5\x80\x95\x9d\xae\x6f\xa7\xac\x2a\xfb\x8d\xc5\x38\x4b\x4a", 192); *(uint32_t*)0x2000000072a4 = 0x5b; *(uint64_t*)0x2000000072a8 = 0x200000007100; *(uint8_t*)0x200000007100 = 0x5b; *(uint8_t*)0x200000007101 = 3; memcpy((void*)0x200000007102, "\xa7\x94\x09\x09\x68\xe4\x6e\x97\xb7\x26\x9f\xca\xe0\xf8\x18\xbf\x9a\x99\xa5\x0d\xe6\x0e\x5c\xda\x68\x47\x21\xbe\x6d\xc3\x48\x20\xf9\x12\xc3\x38\xd7\xdc\x8a\xc5\x0d\x93\xfc\x92\xa2\xeb\xde\x1a\x02\x65\x20\x89\x72\x66\x08\xa9\xe5\x87\x7f\x4c\xac\xf9\x1b\x9e\xec\x5b\x5e\xb2\xfc\x7f\xa7\xbb\x3d\x26\x60\x75\x37\xf0\xe5\x5d\x00\x79\x3e\x7c\xf1\x3b\xbb\x36\x7e", 89); *(uint32_t*)0x2000000072b0 = 0x90; *(uint64_t*)0x2000000072b4 = 0x200000007180; *(uint8_t*)0x200000007180 = 0x90; *(uint8_t*)0x200000007181 = 3; memcpy((void*)0x200000007182, "\xf9\x92\x6b\x0d\xae\x8c\x46\x23\x52\x10\x5e\xd1\xc4\xd3\xff\x50\xcc\x9c\xe9\x82\xc3\x97\xe9\x2e\x57\x61\x01\x31\x71\x90\xc2\x32\x7a\x2b\xa7\x23\x84\x41\x49\xe5\x5f\x4b\x96\x1d\x0f\x0d\xef\xbc\x7e\xdb\x70\xf5\xd6\x11\x69\x07\x42\x65\xac\xd8\x1c\xee\xc5\xa1\x5b\x66\xa5\xe5\x00\x92\x36\xd0\x62\x99\x4a\xf9\xaf\xcb\xe0\x47\x36\xaa\xad\x6b\xb5\x5c\xb3\x0e\x05\x7c\x42\xd0\xdf\x74\x81\x60\x3c\x3c\x95\x9b\x5e\x4e\x20\xf0\x53\x82\xa9\xd9\xad\x4c\x01\x68\x0a\xe3\x59\x7e\xf4\x03\xde\xdf\x0b\x6c\x53\xfd\xc7\x0d\x13\xed\x11\x6e\xf9\xea\x90\x20\x93\xf1\xc9\xf4\xaf\x4c\xec\x25", 142); res = -1; res = syz_usb_connect(/*speed=USB_SPEED_SUPER_PLUS*/6, /*dev_len=*/0x8f, /*dev=*/0x200000006cc0, /*conn_descs=*/0x200000007240); if (res != -1) r[39] = res; break; case 59: *(uint32_t*)0x200000007480 = 0x2c; *(uint64_t*)0x200000007484 = 0x2000000072c0; *(uint8_t*)0x2000000072c0 = 0x40; *(uint8_t*)0x2000000072c1 = 7; *(uint32_t*)0x2000000072c2 = 0x1b; *(uint8_t*)0x2000000072c6 = 0x1b; *(uint8_t*)0x2000000072c7 = 0xa; memcpy((void*)0x2000000072c8, "\x90\x73\x0f\x1d\x9e\x91\xd2\xe1\xdf\x57\x71\x43\xe1\x8c\x68\x0e\xac\xe6\xd6\xc1\x22\x99\x24\x61\x28", 25); *(uint64_t*)0x20000000748c = 0x200000007300; *(uint8_t*)0x200000007300 = 0; *(uint8_t*)0x200000007301 = 3; *(uint32_t*)0x200000007302 = 0x44; *(uint8_t*)0x200000007306 = 0x44; *(uint8_t*)0x200000007307 = 3; memcpy((void*)0x200000007308, "\x87\xd7\x4d\xd4\x60\x96\x80\x9a\x8f\x49\x88\xdd\xaa\x95\xa5\x32\xfb\xc2\x2d\x85\x85\xd1\x59\x28\x57\xad\x0a\xb0\x0c\x17\xa4\xfe\xf3\xb2\x29\xa0\x2f\xe0\xe3\x64\x93\x16\xbe\xd9\xf4\x4f\x58\x8b\x1f\x0b\x47\xbc\x86\x70\x51\x29\x44\x09\x38\xbd\x68\xa2\x9a\x84\xf8\x29", 66); *(uint64_t*)0x200000007494 = 0x200000007380; *(uint8_t*)0x200000007380 = 0; *(uint8_t*)0x200000007381 = 0xf; *(uint32_t*)0x200000007382 = 0x41; *(uint8_t*)0x200000007386 = 5; *(uint8_t*)0x200000007387 = 0xf; *(uint16_t*)0x200000007388 = 0x41; *(uint8_t*)0x20000000738a = 4; *(uint8_t*)0x20000000738b = 0x20; *(uint8_t*)0x20000000738c = 0x10; *(uint8_t*)0x20000000738d = 0xa; *(uint8_t*)0x20000000738e = 0; STORE_BY_BITMASK(uint32_t, , 0x20000000738f, 5, 0, 5); STORE_BY_BITMASK(uint32_t, , 0x20000000738f, 0xe85, 5, 27); *(uint16_t*)0x200000007393 = 0xf00; *(uint16_t*)0x200000007395 = 3; *(uint32_t*)0x200000007397 = 0xff00a0; *(uint32_t*)0x20000000739b = 0xff00f0; *(uint32_t*)0x20000000739f = 0x30; *(uint32_t*)0x2000000073a3 = 0xf; *(uint32_t*)0x2000000073a7 = 0xdfbf; *(uint8_t*)0x2000000073ab = 7; *(uint8_t*)0x2000000073ac = 0x10; *(uint8_t*)0x2000000073ad = 2; STORE_BY_BITMASK(uint32_t, , 0x2000000073ae, 4, 0, 8); STORE_BY_BITMASK(uint32_t, , 0x2000000073af, 4, 0, 4); STORE_BY_BITMASK(uint32_t, , 0x2000000073af, 1, 4, 4); STORE_BY_BITMASK(uint32_t, , 0x2000000073b0, 0xff, 0, 16); *(uint8_t*)0x2000000073b2 = 0xb; *(uint8_t*)0x2000000073b3 = 0x10; *(uint8_t*)0x2000000073b4 = 1; *(uint8_t*)0x2000000073b5 = 2; *(uint16_t*)0x2000000073b6 = 1; *(uint8_t*)0x2000000073b8 = 1; *(uint8_t*)0x2000000073b9 = 3; *(uint16_t*)0x2000000073ba = 9; *(uint8_t*)0x2000000073bc = 8; *(uint8_t*)0x2000000073bd = 0xa; *(uint8_t*)0x2000000073be = 0x10; *(uint8_t*)0x2000000073bf = 3; *(uint8_t*)0x2000000073c0 = 2; *(uint16_t*)0x2000000073c1 = 4; *(uint8_t*)0x2000000073c3 = 3; *(uint8_t*)0x2000000073c4 = 0xb6; *(uint16_t*)0x2000000073c5 = 5; *(uint64_t*)0x20000000749c = 0x200000007400; *(uint8_t*)0x200000007400 = 0x20; *(uint8_t*)0x200000007401 = 0x29; *(uint32_t*)0x200000007402 = 0xf; *(uint8_t*)0x200000007406 = 0xf; *(uint8_t*)0x200000007407 = 0x29; *(uint8_t*)0x200000007408 = 0xf; *(uint16_t*)0x200000007409 = 4; *(uint8_t*)0x20000000740b = 6; *(uint8_t*)0x20000000740c = 0x32; memcpy((void*)0x20000000740d, "\xb2\xc8\x4f\x72", 4); memcpy((void*)0x200000007411, "\xf5\xfb\x7b\x90", 4); *(uint64_t*)0x2000000074a4 = 0x200000007440; *(uint8_t*)0x200000007440 = 0x20; *(uint8_t*)0x200000007441 = 0x2a; *(uint32_t*)0x200000007442 = 0xc; *(uint8_t*)0x200000007446 = 0xc; *(uint8_t*)0x200000007447 = 0x2a; *(uint8_t*)0x200000007448 = 0x3a; *(uint16_t*)0x200000007449 = 0x60; *(uint8_t*)0x20000000744b = 4; *(uint8_t*)0x20000000744c = 4; *(uint8_t*)0x20000000744d = 7; *(uint16_t*)0x20000000744e = 0x8001; *(uint16_t*)0x200000007450 = 8; *(uint32_t*)0x200000007980 = 0x84; *(uint64_t*)0x200000007984 = 0x2000000074c0; *(uint8_t*)0x2000000074c0 = 0; *(uint8_t*)0x2000000074c1 = 0; *(uint32_t*)0x2000000074c2 = 0xcf; memcpy((void*)0x2000000074c6, "\x9f\x51\xc6\xee\x54\xbf\xc1\xfc\x30\xd7\x87\x49\x9a\xb2\x44\x93\xc2\xf3\x0f\x78\xfe\x08\x8e\x72\x4a\xd2\x9b\xad\xb6\xc2\x40\x68\x74\xa9\x09\xd8\x0e\x00\x00\x75\xbb\xe9\x2f\x6f\x4e\x8b\x35\x14\x48\x1d\x12\xb8\x69\xde\xb6\xf4\x7f\x3b\x45\x83\x69\xb7\xf0\x24\xfc\xc0\x23\x19\xe3\x8c\xb7\x46\x7c\x76\xb3\x70\xd3\x78\xee\x02\x56\xda\xa3\xac\xea\x1f\x71\xbe\x5e\x4c\x7d\x8a\x50\x03\x7b\xa8\x4e\x62\x44\x5b\xbd\x99\x0a\x26\xb4\x4f\x60\x19\x8d\x63\x50\x5f\xbf\x00\x5b\x96\x63\x7a\xbf\x5e\xb6\x92\xa2\xed\x0d\x58\x26\x92\xe3\xf2\x59\x38\x7e\xd9\xd1\x95\x59\x17\xdc\x53\xa2\x46\xeb\x20\xe2\x81\xe7\x83\x86\xed\x87\x34\xb8\x10\x75\xe4\x3b\x5b\x3e\x15\xea\x60\xdb\xd4\x97\xe0\x7a\xd8\x84\x79\x92\xdd\x87\x83\x1b\x20\xd0\x52\x63\xc1\x08\xd7\x01\x17\xe5\x21\x70\xef\xac\x17\x77\xd3\xd3\x76\x87\x63\x58\xc2\x29\x71\x72\xb2\xa0\x23\xb5\x2c\x05", 207); *(uint64_t*)0x20000000798c = 0x2000000075c0; *(uint8_t*)0x2000000075c0 = 0; *(uint8_t*)0x2000000075c1 = 0xa; *(uint32_t*)0x2000000075c2 = 1; *(uint8_t*)0x2000000075c6 = 2; *(uint64_t*)0x200000007994 = 0x200000007600; *(uint8_t*)0x200000007600 = 0; *(uint8_t*)0x200000007601 = 8; *(uint32_t*)0x200000007602 = 1; *(uint8_t*)0x200000007606 = 0xfc; *(uint64_t*)0x20000000799c = 0x200000007640; *(uint8_t*)0x200000007640 = 0x20; *(uint8_t*)0x200000007641 = 0; *(uint32_t*)0x200000007642 = 4; *(uint16_t*)0x200000007646 = 3; *(uint16_t*)0x200000007648 = 1; *(uint64_t*)0x2000000079a4 = 0x200000007680; *(uint8_t*)0x200000007680 = 0x20; *(uint8_t*)0x200000007681 = 0; *(uint32_t*)0x200000007682 = 4; *(uint16_t*)0x200000007686 = 0x1d20; *(uint16_t*)0x200000007688 = 0x20; *(uint64_t*)0x2000000079ac = 0x2000000076c0; *(uint8_t*)0x2000000076c0 = 0x40; *(uint8_t*)0x2000000076c1 = 7; *(uint32_t*)0x2000000076c2 = 2; *(uint16_t*)0x2000000076c6 = 0xfff8; *(uint64_t*)0x2000000079b4 = 0x200000007700; *(uint8_t*)0x200000007700 = 0x40; *(uint8_t*)0x200000007701 = 9; *(uint32_t*)0x200000007702 = 1; *(uint8_t*)0x200000007706 = 0xd; *(uint64_t*)0x2000000079bc = 0x200000007740; *(uint8_t*)0x200000007740 = 0x40; *(uint8_t*)0x200000007741 = 0xb; *(uint32_t*)0x200000007742 = 2; memcpy((void*)0x200000007746, "\x22\x89", 2); *(uint64_t*)0x2000000079c4 = 0x200000007780; *(uint8_t*)0x200000007780 = 0x40; *(uint8_t*)0x200000007781 = 0xf; *(uint32_t*)0x200000007782 = 2; *(uint16_t*)0x200000007786 = 2; *(uint64_t*)0x2000000079cc = 0x2000000077c0; *(uint8_t*)0x2000000077c0 = 0x40; *(uint8_t*)0x2000000077c1 = 0x13; *(uint32_t*)0x2000000077c2 = 6; memset((void*)0x2000000077c6, 255, 6); *(uint64_t*)0x2000000079d4 = 0x200000007800; *(uint8_t*)0x200000007800 = 0x40; *(uint8_t*)0x200000007801 = 0x17; *(uint32_t*)0x200000007802 = 6; memcpy((void*)0x200000007806, "\xee\xfa\x7a\x62\x01\x65", 6); *(uint64_t*)0x2000000079dc = 0x200000007840; *(uint8_t*)0x200000007840 = 0x40; *(uint8_t*)0x200000007841 = 0x19; *(uint32_t*)0x200000007842 = 2; memcpy((void*)0x200000007846, "\x01\xd3", 2); *(uint64_t*)0x2000000079e4 = 0x200000007880; *(uint8_t*)0x200000007880 = 0x40; *(uint8_t*)0x200000007881 = 0x1a; *(uint32_t*)0x200000007882 = 2; *(uint16_t*)0x200000007886 = 5; *(uint64_t*)0x2000000079ec = 0x2000000078c0; *(uint8_t*)0x2000000078c0 = 0x40; *(uint8_t*)0x2000000078c1 = 0x1c; *(uint32_t*)0x2000000078c2 = 1; *(uint8_t*)0x2000000078c6 = -1; *(uint64_t*)0x2000000079f4 = 0x200000007900; *(uint8_t*)0x200000007900 = 0x40; *(uint8_t*)0x200000007901 = 0x1e; *(uint32_t*)0x200000007902 = 1; *(uint8_t*)0x200000007906 = 0xf7; *(uint64_t*)0x2000000079fc = 0x200000007940; *(uint8_t*)0x200000007940 = 0x40; *(uint8_t*)0x200000007941 = 0x21; *(uint32_t*)0x200000007942 = 1; *(uint8_t*)0x200000007946 = 0xb; syz_usb_control_io(/*fd=*/r[39], /*descs=*/0x200000007480, /*resps=*/0x200000007980); break; case 60: syz_usb_disconnect(/*fd=*/r[38]); break; case 61: *(uint8_t*)0x200000007a40 = 0x12; *(uint8_t*)0x200000007a41 = 1; *(uint16_t*)0x200000007a42 = 0x110; *(uint8_t*)0x200000007a44 = 0; *(uint8_t*)0x200000007a45 = 0; *(uint8_t*)0x200000007a46 = 0; *(uint8_t*)0x200000007a47 = -1; *(uint16_t*)0x200000007a48 = 0x46d; *(uint16_t*)0x200000007a4a = 0xc08d; *(uint16_t*)0x200000007a4c = 0x40; *(uint8_t*)0x200000007a4e = 1; *(uint8_t*)0x200000007a4f = 2; *(uint8_t*)0x200000007a50 = 3; *(uint8_t*)0x200000007a51 = 1; *(uint8_t*)0x200000007a52 = 9; *(uint8_t*)0x200000007a53 = 2; *(uint16_t*)0x200000007a54 = 0x2d; *(uint8_t*)0x200000007a56 = 1; *(uint8_t*)0x200000007a57 = 1; *(uint8_t*)0x200000007a58 = 4; *(uint8_t*)0x200000007a59 = 0x50; *(uint8_t*)0x200000007a5a = 0x10; *(uint8_t*)0x200000007a5b = 9; *(uint8_t*)0x200000007a5c = 4; *(uint8_t*)0x200000007a5d = 0; *(uint8_t*)0x200000007a5e = 0xf9; *(uint8_t*)0x200000007a5f = 2; *(uint8_t*)0x200000007a60 = 3; *(uint8_t*)0x200000007a61 = 1; *(uint8_t*)0x200000007a62 = 2; *(uint8_t*)0x200000007a63 = 5; *(uint8_t*)0x200000007a64 = 9; *(uint8_t*)0x200000007a65 = 0x21; *(uint16_t*)0x200000007a66 = 0x81; *(uint8_t*)0x200000007a68 = 8; *(uint8_t*)0x200000007a69 = 1; *(uint8_t*)0x200000007a6a = 0x22; *(uint16_t*)0x200000007a6b = 0x6e7; *(uint8_t*)0x200000007a6d = 9; *(uint8_t*)0x200000007a6e = 5; *(uint8_t*)0x200000007a6f = 0x81; *(uint8_t*)0x200000007a70 = 3; *(uint16_t*)0x200000007a71 = 0x10; *(uint8_t*)0x200000007a73 = 8; *(uint8_t*)0x200000007a74 = 0xc; *(uint8_t*)0x200000007a75 = 0x6e; *(uint8_t*)0x200000007a76 = 9; *(uint8_t*)0x200000007a77 = 5; *(uint8_t*)0x200000007a78 = 2; *(uint8_t*)0x200000007a79 = 3; *(uint16_t*)0x200000007a7a = 0x200; *(uint8_t*)0x200000007a7c = 8; *(uint8_t*)0x200000007a7d = 1; *(uint8_t*)0x200000007a7e = 0x50; *(uint32_t*)0x200000007f40 = 0xa; *(uint64_t*)0x200000007f44 = 0x200000007a80; *(uint8_t*)0x200000007a80 = 0xa; *(uint8_t*)0x200000007a81 = 6; *(uint16_t*)0x200000007a82 = 0x310; *(uint8_t*)0x200000007a84 = 0x48; *(uint8_t*)0x200000007a85 = 0xa5; *(uint8_t*)0x200000007a86 = 0xca; *(uint8_t*)0x200000007a87 = 8; *(uint8_t*)0x200000007a88 = 0x10; *(uint8_t*)0x200000007a89 = 0; *(uint32_t*)0x200000007f4c = 0x30; *(uint64_t*)0x200000007f50 = 0x200000007ac0; *(uint8_t*)0x200000007ac0 = 5; *(uint8_t*)0x200000007ac1 = 0xf; *(uint16_t*)0x200000007ac2 = 0x30; *(uint8_t*)0x200000007ac4 = 4; *(uint8_t*)0x200000007ac5 = 0xa; *(uint8_t*)0x200000007ac6 = 0x10; *(uint8_t*)0x200000007ac7 = 3; *(uint8_t*)0x200000007ac8 = 0; *(uint16_t*)0x200000007ac9 = 5; *(uint8_t*)0x200000007acb = 0; *(uint8_t*)0x200000007acc = 1; *(uint16_t*)0x200000007acd = 0x8a; *(uint8_t*)0x200000007acf = 0x10; *(uint8_t*)0x200000007ad0 = 0x10; *(uint8_t*)0x200000007ad1 = 0xa; *(uint8_t*)0x200000007ad2 = 0xa; STORE_BY_BITMASK(uint32_t, , 0x200000007ad3, 1, 0, 5); STORE_BY_BITMASK(uint32_t, , 0x200000007ad3, 0, 5, 27); *(uint16_t*)0x200000007ad7 = 0xf00f; *(uint16_t*)0x200000007ad9 = 7; *(uint32_t*)0x200000007adb = 0x3f00; *(uint8_t*)0x200000007adf = 0xa; *(uint8_t*)0x200000007ae0 = 0x10; *(uint8_t*)0x200000007ae1 = 3; *(uint8_t*)0x200000007ae2 = 0; *(uint16_t*)0x200000007ae3 = 4; *(uint8_t*)0x200000007ae5 = 4; *(uint8_t*)0x200000007ae6 = 8; *(uint16_t*)0x200000007ae7 = 0xfff8; *(uint8_t*)0x200000007ae9 = 7; *(uint8_t*)0x200000007aea = 0x10; *(uint8_t*)0x200000007aeb = 2; STORE_BY_BITMASK(uint32_t, , 0x200000007aec, 4, 0, 8); STORE_BY_BITMASK(uint32_t, , 0x200000007aed, 0, 0, 4); STORE_BY_BITMASK(uint32_t, , 0x200000007aed, 5, 4, 4); STORE_BY_BITMASK(uint32_t, , 0x200000007aee, 0x8001, 0, 16); *(uint32_t*)0x200000007f58 = 0xa; *(uint32_t*)0x200000007f5c = 4; *(uint64_t*)0x200000007f60 = 0x200000007b00; *(uint8_t*)0x200000007b00 = 4; *(uint8_t*)0x200000007b01 = 3; *(uint16_t*)0x200000007b02 = 0x437; *(uint32_t*)0x200000007f68 = 0xf2; *(uint64_t*)0x200000007f6c = 0x200000007b40; *(uint8_t*)0x200000007b40 = 0xf2; *(uint8_t*)0x200000007b41 = 3; memcpy((void*)0x200000007b42, "\xf0\x01\x99\x69\xb3\x8f\x6a\xfa\xbd\x6c\x10\x59\x67\xf2\xb7\x9c\x11\x6b\xf5\x2e\x6a\xf5\x49\x27\x19\x39\xcb\xea\xcd\xab\x5c\x85\x03\xce\xe7\xd1\xa6\x7a\x62\xea\x49\x1b\x6b\x2f\x86\x47\x13\x3f\x15\xb8\xe9\x70\x7e\x4a\x77\x57\x7e\x8a\xfd\x8a\x12\x84\x45\x9b\x66\xc7\xbe\x93\xc4\x3e\x84\xef\xcf\xc2\xf7\x3e\x93\xd2\x95\x99\x8c\xc2\xf4\x95\xae\x5b\x1a\x3d\x5e\x12\xef\x6e\x64\x66\x4a\x3b\x5c\x79\x52\x8b\x01\x19\xf7\x8b\x0a\x61\xd8\x07\x23\x25\x37\xeb\x3d\x9c\x09\xad\xd9\x38\x23\xe6\xf8\x78\xbb\xba\x00\x89\x8b\xe1\x01\x7f\xaf\x4e\x5f\x14\xd3\x87\x40\x1c\x45\x64\x59\x54\xc0\x4f\x8c\x83\xf9\xe5\xf0\xae\x99\x13\xd9\xcc\xb8\x8e\x75\x16\xd8\x0f\x8e\x21\xc3\xb6\x10\x42\x92\x58\x16\x92\x48\xa0\x16\xde\x14\x4a\xbc\xe7\x90\x5f\x4d\xd3\xbf\x26\x98\xe9\xf3\xa5\xfe\xbc\x7c\x10\xef\x4e\xd2\x98\xe5\xf8\xfa\xcb\xb3\xc9\x34\x4b\xb3\xab\x33\x56\x8a\x0f\x64\xf4\x28\xd6\x0d\xab\xe2\xbf\xe7\x95\xdf\x06\x03\xcd\xf7\x6f\x60\x62\x41\xfd\xd8\x9c\x8f\xf9\xfe\x55\xee\x23\x95\xfd", 240); *(uint32_t*)0x200000007f74 = 4; *(uint64_t*)0x200000007f78 = 0x200000007c40; *(uint8_t*)0x200000007c40 = 4; *(uint8_t*)0x200000007c41 = 3; *(uint16_t*)0x200000007c42 = 0x2c0a; *(uint32_t*)0x200000007f80 = 0x89; *(uint64_t*)0x200000007f84 = 0x200000007c80; *(uint8_t*)0x200000007c80 = 0x89; *(uint8_t*)0x200000007c81 = 3; memcpy((void*)0x200000007c82, "\x05\xb7\x61\x5d\x7a\x2b\xa8\x3f\x59\x16\xd5\x85\xe5\x29\x06\x69\xa0\xc2\x43\xe1\xc6\x5f\x43\xd6\xc7\x68\x07\x67\xf0\xda\x68\x05\xce\x35\x66\x41\x3a\x20\xf4\xb8\x66\x4b\x77\x79\x9c\x5c\x60\x61\xd9\xd1\x90\x75\xd2\xf8\x9b\x88\x0c\xaa\x62\x2d\x3a\xa9\x10\x8e\x52\x22\xe5\x53\x36\xbf\x78\x50\xd2\xf7\x99\x0a\x13\x14\xb0\xbe\x81\xd6\x06\xf8\xa9\x9a\x67\x05\xe0\xac\x44\x87\x20\x72\x36\x6a\xba\xea\x5f\x97\xd7\xca\x08\xed\x1e\xb2\x5b\x70\x7c\x92\x99\x1e\x55\x37\xf9\x45\xaa\x40\x1d\x76\x13\x49\xb6\x28\xd6\xc9\x28\xc1\xcf\xe5\xb0\x9f\xd1\x32\x72", 135); *(uint32_t*)0x200000007f8c = 0xb8; *(uint64_t*)0x200000007f90 = 0x200000007d40; *(uint8_t*)0x200000007d40 = 0xb8; *(uint8_t*)0x200000007d41 = 3; memcpy((void*)0x200000007d42, "\xf0\x4a\x78\x64\x8b\xb1\x3a\xd6\xc5\x3b\x44\xe4\x2e\xd2\xf2\x4d\x32\x05\xbf\x51\x61\x67\x4f\xf3\x75\xec\xfa\x9f\x71\x0d\xd4\xd5\x2e\x29\x77\x9b\xc4\xc1\xd4\x1f\xaf\x1b\x2e\x02\xfa\x2c\xb4\xca\x6c\x44\x96\x81\xb5\xc8\x8b\x37\x75\xf8\x2b\xab\xde\x22\x58\xf8\xa0\x01\xd8\x11\xf8\xb6\x4c\xe0\x75\x3b\x22\x8c\x16\x18\x09\x77\x0f\x39\x16\x0b\xa4\xea\x92\x49\x0a\x38\xf8\x2c\x3f\x18\xb4\x4c\x81\xa1\x48\xc4\x8b\xbc\x4f\x71\x6e\x64\xa8\x5a\x98\x5f\x35\x70\xd6\x13\x2a\x4a\xc6\xe9\x7f\x0a\xe7\x29\x65\x82\x87\x9c\x5d\x4e\x27\x7b\xe3\xd5\x86\x7d\xc3\xdf\x26\x06\x87\x9b\xd5\x28\x12\x25\xa3\x4f\x3f\xeb\xa4\x36\xee\xc1\x6d\xdf\xbe\x61\x15\x74\xbe\x64\x5a\x71\xc5\xe8\xbe\x49\x4e\x27\x91\x83\x33\xf2\x43\x1a\xef\xf2\xe9\xfe\xd0\x60\x84\x28", 182); *(uint32_t*)0x200000007f98 = 4; *(uint64_t*)0x200000007f9c = 0x200000007e00; *(uint8_t*)0x200000007e00 = 4; *(uint8_t*)0x200000007e01 = 3; *(uint16_t*)0x200000007e02 = 0x40f; *(uint32_t*)0x200000007fa4 = 4; *(uint64_t*)0x200000007fa8 = 0x200000007e40; *(uint8_t*)0x200000007e40 = 4; *(uint8_t*)0x200000007e41 = 3; *(uint16_t*)0x200000007e42 = 0x860; *(uint32_t*)0x200000007fb0 = 4; *(uint64_t*)0x200000007fb4 = 0x200000007e80; *(uint8_t*)0x200000007e80 = 4; *(uint8_t*)0x200000007e81 = 3; *(uint16_t*)0x200000007e82 = 0xf4ef; *(uint32_t*)0x200000007fbc = 4; *(uint64_t*)0x200000007fc0 = 0x200000007ec0; *(uint8_t*)0x200000007ec0 = 4; *(uint8_t*)0x200000007ec1 = 3; *(uint16_t*)0x200000007ec2 = 0x3001; *(uint32_t*)0x200000007fc8 = 4; *(uint64_t*)0x200000007fcc = 0x200000007f00; *(uint8_t*)0x200000007f00 = 4; *(uint8_t*)0x200000007f01 = 3; *(uint16_t*)0x200000007f02 = 0x2009; res = -1; res = syz_usb_connect(/*speed=*/0, /*dev_len=*/0x3f, /*dev=*/0x200000007a40, /*conn_descs=*/0x200000007f40); if (res != -1) r[40] = res; break; case 62: syz_usb_ep_read(/*fd=*/r[40], /*ep=*/0, /*len=*/0x1000, /*data=*/0x200000008000); break; case 63: memcpy((void*)0x200000009000, "\x57\xbb\xa2\xf0\x4f\x39\x45\xda\x7a\x47\x03\x77\x10\xf6\xd5\x3d\x8d\xfa\xd8\xa9\x6c\x57\xe1\x1c\xf5\xfc\xfe\xe4\x34\xfc\xe8\x80\x38\xe1\x90\x4e\xcc\x27\x12\x33\x41\x18\xe5\x00\x2b\x0c\x10\x7c\x28\x6e\xb9\x03\x14\x23\x3f\xd5\xce\x1d\x9e\xa5\xda\x00\x76\x74\x11\x02\xd8\x85\x17\x46\x3f\xf1\x18\xbd\x93\x12\x82\x41\x2d\xe1\xf5\xea\x71\xeb\x2b\xec\x91\xb8\x2b\x7f\x7b\x64\xf8\xaa\xe1\xd5\x8e\x32\xde\x1d\xee\xb1\xc8\x26\x4d\x59\xd6\x39\xa1\x94\x5f\x00\x90\x27\x5e\x6b\xdb\xf1\x8e\x86\x68\x5c\xcb\x60\xa5\xfe\xc9\xc7\xce\xba\xc5\xd0\x5b\x5c\x84\xe6\x11\x6f\x89\xd4\x43\xfa\xd3\xce\x74\xd8\x20\x80", 148); syz_usb_ep_write(/*fd=*/r[37], /*ep=*/6, /*len=*/0x94, /*data=*/0x200000009000); break; case 64: syz_usbip_server_init(/*speed=USB_SPEED_SUPER*/5); break; } } int main(void) { syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000ul, /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/7ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x200001000000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); const char* reason; (void)reason; if ((reason = setup_fault())) printf("the reproducer may not work as expected: fault injection setup failed: %s\n", reason); use_temporary_dir(); do_sandbox_none(); return 0; } : In function 'execute_call': :6677:17: error: '__NR_socketcall' undeclared (first use in this function) :6677:17: note: each undeclared identifier is reported only once for each function it appears in At top level: cc1: note: unrecognized command-line option '-Wno-unused-command-line-argument' may have been intended to silence earlier diagnostics compiler invocation: x86_64-linux-gnu-gcc [-o /tmp/syz-executor3129052781 -DGOOS_linux=1 -DGOARCH_amd64=1 -DHOSTGOOS_linux=1 -x c - -m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -static-pie] --- FAIL: TestGenerate/linux/amd64/27 (0.89s) csource_test.go:157: opts: {Threaded:true Repeat:true RepeatTimes:0 Procs:0 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}} program: r0 = openat$ubi_ctrl(0xffffffffffffff9c, &(0x7f0000000000), 0x44502, 0x0) (fail_nth: 1) ioctl$USBDEVFS_BULK(r0, 0xc0185502, &(0x7f0000000140)={{{0xa, 0x1}}, 0xc5, 0x1, &(0x7f0000000040)="e1ee87a8f76c257b75c1073c7058be82fe3362bbcca54df520d1ca8fa91b50810f876d1fab0a1cc214c35f4e266e71643d8c95988087e46a87c1a715effe06169ab65fa18e5414404f30c0005561397ed1d9557c66a994b954efa714985a2ae409df8111fa8a361408734d15b30cd9ab3fa50e088b3d2bafdc689ea3cb7e52a9fc7f5d48d245d4097bb933725bd9e29371cd7780b4ec8d6e2dbf861aad04d6594f5ebd2ffab1e8a68c5157cae2f46f6fa3aeac0e3f8b7b97630f346bc3276e53ca72b417f8"}) (async) ioctl$F2FS_IOC_SET_COMPRESS_OPTION(r0, 0x4002f516, &(0x7f0000000180)={0x4, 0x9}) (rerun: 4) setsockopt$inet6_tcp_TCP_REPAIR(r0, 0x6, 0x13, &(0x7f00000001c0)=0xffffffffffffffff, 0x4) setsockopt$inet6_group_source_req(r0, 0x29, 0x2b, &(0x7f0000000200)={0x4, {{0xa, 0x4e20, 0x4, @private0={0xfc, 0x0, '\x00', 0x1}}}, {{0xa, 0x4e21, 0x1, @local, 0x9}}}, 0x108) ioctl$USBDEVFS_GETDRIVER(r0, 0x41045508, &(0x7f0000000340)={0x4b, "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"}) setsockopt$XDP_UMEM_REG(r0, 0x11b, 0x4, &(0x7f0000000580)={&(0x7f0000000480)=""/222, 0x8000, 0x1800, 0x1, 0x3}, 0x20) ioctl$BLKSECDISCARD(r0, 0x127d, &(0x7f00000005c0)=0x4) ioctl$DRM_IOCTL_SYNCOBJ_FD_TO_HANDLE_FD(r0, 0xc01864c2, &(0x7f0000000600)={0x0, 0x0, r0}) ioctl$DRM_IOCTL_MODE_REVOKE_LEASE(0xffffffffffffffff, 0xc00464c9, &(0x7f00000006c0)) syz_80211_inject_frame(&(0x7f0000000000)=@broadcast, &(0x7f0000000040)=@data_frame={@a_msdu=@type01={{0x0, 0x2, 0xb, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1}, {0x2}, @device_b, @from_mac, @initial, {0x9, 0x5bb}, "", @value={0x1, 0x1, 0x1, 0x1, 0x9}, @value=@ver_80211n={0x0, 0x2, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x1}}, @random="055ba71928a79f8625942b8e22a62e7d0ef5d26afb5923f0a1"}, 0x37) syz_80211_join_ibss(&(0x7f0000000080)='wlan0\x00', &(0x7f00000000c0)=@random="f20f01439229172ec7637d66e2f075", 0xf, 0x2) syz_btf_id_by_name$bpf_lsm(&(0x7f0000000100)='bpf_lsm_inode_getsecurity\x00') r1 = syz_clone(0x1000, &(0x7f0000000140)="ff427f0e4659ab5893d3badb31b3b1b89da52b0f3d3489a18a5837ba6e04f21cf0581de7946c2e29adef18036a10ce361250a5667064b4d456c64c307d63cfe3422c3fafd450315e8366", 0x4a, &(0x7f00000001c0), &(0x7f0000000200), &(0x7f0000000240)="b201d139a4344e463d89913bee9c68af3f34090b9f6244af88c8fe07ce4ffe9b81210da0fc44559d985ad5bb1dc9672ce4d1df554aafb78053f4") r2 = syz_clone3(&(0x7f0000000440)={0x100400, &(0x7f0000000280)=0xffffffffffffffff, &(0x7f00000002c0)=0x0, &(0x7f0000000300)=0x0, {0x2a}, &(0x7f0000000340)=""/21, 0x15, &(0x7f0000000380)=""/120, &(0x7f0000000400)=[r1], 0x1}, 0x58) syz_create_resource$binfmt(&(0x7f00000004c0)='./file0\x00') syz_emit_ethernet(0xd1, &(0x7f0000000500)={@random="44f71c1405a2", @multicast, @val={@void, {0x8100, 0x1, 0x0, 0x2}}, {@mpls_mc={0x8848, {[{0xf, 0x0, 0x1}, {0xc, 0x0, 0x1}, {0x2, 0x0, 0x1}, {0x1c}], @llc={@snap={0x0, 0x0, "67a3", "c85dcd", 0x88ca, "e303e8e52af9a170943b5f0b2861a3effb852560b1007d1865564aed84dfbf75279a5a950a513b7559f042b12f0d592b5a8bb399b9a071f4d2b9fb4903fb61b866bd20c43a437cc6915d6e19f058e23b4cfbf7d66b0d974aa6f1687cc06941e28e8515a079742b9f8383f09b8e29493cdfef26beab29802d1e85d1a50ef5670a049551dab256fd3dc3fd667fd4a29c752e4f3ba700720a9fe2ecb47e232cfbb80832213bbaf3"}}}}}}, &(0x7f0000000600)={0x1, 0x4, [0x58f, 0x8001, 0x2bc, 0xf]}) syz_emit_vhci(&(0x7f0000000640)=@HCI_ACLDATA_PKT={0x2, {0xc9, 0x1, 0x0, 0xa2}, @l2cap_cid_signaling={{0x9e}, [@l2cap_info_req={{0xa, 0x4, 0x2}, {0x5}}, @l2cap_move_chan_rsp={{0xf, 0x7, 0x4}, {0x1, 0x1ff}}, @l2cap_info_rsp={{0xb, 0x8, 0x64}, {0x1, 0x9, "7d0c09e4aa3ea5a78a46cf8d66857ba4107e5cf880621c4c433cdb0a8bd03a4f9c8f390145f9db0c1dd85656d6b3dc38afb84d7e118e1cbdd6926b1876be6a6553bafa1bfef971281350403e18e82e89f42bb6d51b166bd96dabf25dbb28f01e"}}, @l2cap_disconn_req={{0x6, 0x64, 0x4}, {0x9, 0x1}}, @l2cap_move_chan_cfm={{0x10, 0x2, 0x4}, {0xffff, 0x9}}, @l2cap_create_chan_rsp={{0xd, 0x4f, 0x8}, {0x6, 0x8001, 0x8, 0x3}}, @l2cap_conn_rsp={{0x3, 0x48, 0x8}, {0x4, 0x8, 0x6837, 0x4}}]}}, 0xa7) syz_extract_tcp_res(&(0x7f0000000700), 0x0, 0x507) r6 = openat$cuse(0xffffffffffffff9c, &(0x7f0000000740), 0x2, 0x0) ioctl$DRM_IOCTL_GET_CLIENT(0xffffffffffffffff, 0xc0286405, &(0x7f0000002a80)={0x7, 0x4, {r5}, {0x0}, 0x100000000, 0x3}) shmctl$auto_IPC_STAT(0x8, 0x2, &(0x7f0000002b80)={{0x1, 0x0, 0xee00, 0x5, 0x9, 0x8c, 0x6}, 0xe0000, 0x3, 0x6, 0x2c54, @raw=0x7fffffff, @raw=0x5, 0x3, 0x0, &(0x7f0000002ac0)="34d14592330d2effe2b242ce1c79f97a737dc0f7745d84eec469048ba4772d3ca2f34e3a83b5edadf6550e5b412cf5ee749b3324b30032ad2ae14cfa29ef4ecf97416fdc53d73bb80ea139aac1bf364ddcbe7409342155ae126f63d9e3ab1d5104befdd9", &(0x7f0000002b40)="e550413c2f469c9ef08eb7193b0a242e58befe012aa89d7c"}) r9 = setfsuid$auto(0xee01) r10 = getuid() fstat(r3, &(0x7f0000002ec0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) ioctl$DRM_IOCTL_GET_CLIENT(0xffffffffffffffff, 0xc0286405, &(0x7f0000002f40)={0x9, 0x6, {0xffffffffffffffff}, {0xee01}, 0x9, 0x8}) ioctl$auto_XFS_IOC_SWAPEXT(0xffffffffffffffff, 0xc0c0586d, &(0x7f0000002f80)={0x1, @inferred=r3, @inferred=r3, 0x0, 0x0, '\x00', {0x100, 0x6, 0x4, 0x0, 0xee01, 0x4, 0x2, 0xe78bc90, {0x9e350, 0x10}, {0x4, 0x7}, {0x3a83, 0x80000000}, 0xff, 0x8, 0x7, 0x7, 0x5, 0xd275, 0x6, 0x1, 0xff74, 0x5, '\x00', 0xf0e, 0x400, 0x2, 0x8001}}) msgctl$auto_IPC_RMID(0x2, 0x0, &(0x7f00000030c0)={{0x80, 0x0, 0xee01, 0x8, 0x3, 0x3, 0x6}, &(0x7f0000003040)=0xf, &(0x7f0000003080)=0x29, 0xfffffffffffff801, 0x6b4c, 0x0, 0x3, 0x800, 0x2, 0xbf09, 0x3, @inferred=r2, @inferred=r4}) ioctl$auto_KVM_GET_DEVICE_ATTR(0xffffffffffffffff, 0x4018aee2, &(0x7f0000003140)={0xb407, 0xee01, 0x8, 0x8}) statx$auto(0xffffffffffffff9c, &(0x7f0000003180)='./file0\x00', 0x4, 0x2, &(0x7f00000031c0)={0x8, 0xfffffffe, 0x0, 0xa, 0x0, 0xee00, 0xf, 0x5d3e, 0x5, 0x10, 0xff89, 0x100, {0xf, 0x8}, {0xfff, 0x2}, {0x3, 0x7fff}, {0xffffffffffffffff, 0x9}, 0x0, 0x3, 0x7, 0x8d6, 0x383d, 0x4, 0xb0d4, 0x503, 0x2, 0x0, 0x5, 0x2, [0xfffffffffffffffb, 0xff, 0x3, 0x259, 0xbe9, 0xff, 0x6, 0x800, 0x9]}) shmctl$auto_IPC_SET(0x3, 0x1, &(0x7f0000004300)={{0x5, 0xee00, 0xee00, 0x3, 0x7ff, 0x2, 0x5}, 0x2, 0x401, 0x3, 0xfffffffffffffffe, @inferred=r1, @inferred=r4, 0xfffe, 0x0, &(0x7f00000032c0)="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", &(0x7f00000042c0)="14dc2c36c1a4730f33f0a47756b437792e9ac78f742f821e328341e02b"}) newfstatat(0xffffffffffffff9c, &(0x7f0000004600)='./file0\x00', &(0x7f0000004640)={0x0, 0x0, 0x0, 0x0, 0x0}, 0x0) fstat(r3, &(0x7f00000046c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) shmctl$auto(0x0, 0x7, &(0x7f00000058c0)={{0xffffffff, 0xee00, 0xffffffffffffffff, 0x2, 0x9, 0x2, 0x4}, 0x6, 0x4, 0x4, 0x1, @raw, @inferred=r4, 0x40, 0x0, &(0x7f0000004840)="be999eee258959e93a2aa68dc2cb1d93b819d2b9d9e678e2e2506d54510e920728d75815bb8027e6a021febb8f0996f8add6877b74ce5eace74504cf3a4f3ac46a5a59400342351940bfb8767dd9955c9e9a9941", &(0x7f00000048c0)="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lstat$auto(&(0x7f0000005940)='./file0\x00', &(0x7f0000005980)={0x100000000, 0x7d80, 0x1, 0x40, 0xffffffffffffffff, 0x0, 0x0, 0x7, 0xfffffffffffffffb, 0x0, 0x2, 0xe6, 0x2, 0x4, 0xa03f, 0x10, 0x7}) syz_fuse_handle_req(r6, 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", 0x2000, &(0x7f0000005b80)={&(0x7f0000002780)={0x50, 0xffffffffffffffda, 0x7, {0x7, 0x2d, 0x8, 0x1020000, 0xfffc, 0x401, 0x12, 0x6, 0x0, 0x0, 0x40, 0xce}}, &(0x7f0000002800)={0x18, 0x0, 0x6, {0xbb}}, &(0x7f0000002840)={0x18, 0x0, 0x1, {0x5}}, &(0x7f0000002880)={0x18, 0xfffffffffffffff5, 0x4}, &(0x7f00000028c0)={0x18, 0xfffffffffffffffe, 0x3, {0x7}}, &(0x7f0000002900)={0x28, 0x0, 0x300000000000, {{0x1, 0x8, 0x0, r1}}}, &(0x7f0000002940)={0x60, 0x0, 0xc, {{0x0, 0xff, 0x2, 0x41, 0x40, 0x6, 0x8dd, 0x5}}}, &(0x7f00000029c0)={0x18, 0xffffffffffffffda, 0x9, {0x5}}, &(0x7f0000002a00)={0x16, 0x0, 0x6, {'\xff\xff\xff\xff\xff\xff'}}, &(0x7f0000002a40)={0x20, 0x0, 0x0, {0x0, 0x1e}}, &(0x7f0000002c00)={0x78, 0xfffffffffffffffe, 0x3, {0x8, 0x6, 0x0, {0x0, 0x8, 0x2, 0x8, 0x80, 0x5, 0x3482, 0xa246, 0x80000000, 0x4000, 0x3e08, r7, r8, 0x7f, 0x3}}}, &(0x7f0000002c80)={0x90, 0xffffffffffffffda, 0x2, {0x6, 0x0, 0x2, 0x8, 0xfffffffc, 0x9, {0x1, 0x3, 0x2, 0x5, 0x761, 0x7, 0x58d95c3d, 0x7, 0x7, 0x8000, 0x8, r9, 0xee01, 0x0, 0x400}}}, &(0x7f0000002d40)={0x158, 0x0, 0x8000000000000001, [{0x0, 0x0, 0x0, 0x5}, {0x2, 0x291, 0x3, 0x0, 'a-$'}, {0x6, 0x1, 0x1a, 0x5df9, 'bpf_lsm_inode_getsecurity\x00'}, {0x5, 0x4}, {0x3, 0x2, 0x7, 0x615d, ']F,[@%('}, {0x3, 0x4, 0x2, 0x5, '#*'}, {0x6, 0xc, 0x1, 0x200, '!'}, {0x2, 0x1, 0x3, 0xffff, '%[*'}, {0x2, 0x1, 0x6, 0x10001, '\xbb\xbb\xbb\xbb\xbb\xbb'}, {0x2, 0x9, 0x3, 0x3, '\\$&'}]}, &(0x7f0000004380)={0x280, 0x0, 0x7, [{{0x1, 0x2, 0x9b, 0xa, 0x40, 0x2b, {0x1, 0x0, 0xf5, 0x7, 0x8, 0x7, 0x5, 0x9, 0x1b, 0xa000, 0x4, r10, r12, 0x4, 0x10000}}, {0x4, 0x6, 0x0, 0x7f}}, {{0x1, 0x0, 0x9, 0x4, 0x9, 0x101, {0x0, 0x80, 0x80000001, 0x8, 0x7fffffffffffffff, 0xc14, 0x7, 0x2, 0x5, 0x1000, 0x7, r13, r16, 0x7, 0x3}}, {0x1, 0x8000000000000000, 0x0, 0x9}}, {{0x3, 0x1, 0x7, 0x3, 0x10000, 0xfff, {0x6, 0x3, 0x4, 0xffffffff, 0x5, 0x1, 0xcf, 0x5, 0x2, 0x3000, 0xf, r17, r18, 0xdda, 0x800}}, {0x0, 0x480, 0x1, 0x7, '\''}}, {{0x3, 0x0, 0x6, 0x6, 0xae90, 0x7fff, {0x5, 0x2, 0xffff, 0xb6, 0x9, 0x8, 0x200, 0x3, 0x6, 0x6000, 0xfffffff7, r19, r20, 0x4, 0x6}}, {0x0, 0x3, 0x6, 0xfffffffd, 'wlan0\x00'}}]}, &(0x7f0000004740)={0xa0, 0xfffffffffffffffe, 0x7fff, {{0x1, 0x2, 0x8, 0x8001, 0x9000, 0x0, {0x3, 0x4, 0x4283, 0x6, 0x7, 0x1, 0x4, 0x8000, 0x7f, 0x2000, 0xa, r22, r24, 0x2, 0x9}}}}, &(0x7f0000004800)={0x20, 0x0, 0xa, {0x8}}, &(0x7f0000005a40)={0x130, 0x0, 0x800, {0x10000000, 0x9, 0x0, '\x00', {0x4, 0xfffffff9, 0x8, 0xd, r25, r27, 0x4000, '\x00', 0xe, 0x1, 0x9, 0x4, {0x75, 0x10}, {0x0, 0x2a}, {0x4, 0x647}, {0x8, 0xfffffffa}, 0x4, 0x9, 0xf1, 0x7}}}}) r28 = socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$SEG6(&(0x7f0000005c40), r28) syz_init_net_socket$802154_dgram(0x24, 0x2, 0x0) r29 = syz_io_uring_complete(0x0) syz_io_uring_setup(0x19f7, &(0x7f0000005c80)={0x0, 0x9c5d, 0x2, 0x1, 0x253, 0x0, r15}, &(0x7f0000005d00)=0x0, &(0x7f0000005d40)=0x0) syz_io_uring_submit(r30, r31, &(0x7f0000005dc0)=@IORING_OP_TIMEOUT={0xb, 0x28, 0x0, 0x0, 0x3, &(0x7f0000005d80), 0x1, 0x10, 0x1}) r32 = syz_kvm_setup_syzos_vm$x86(r15, &(0x7f0000bff000/0x400000)=nil) syz_kvm_add_vcpu$x86(r32, &(0x7f0000005e80)={0x0, &(0x7f0000005e00)=[@enable_nested={0x12c, 0x18}, @uexit={0x0, 0x18, 0x4}, @nested_create_vm={0x12d, 0x18, 0x2}], 0x48}) syz_kvm_setup_cpu$ppc64(r14, r29, &(0x7f0000c37000/0x18000)=nil, &(0x7f0000006100)=[{0x0, &(0x7f0000005ec0)="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", 0x230}], 0x1, 0x1, &(0x7f0000006140)=[@featur2={0x1, 0x7}], 0x1) syz_kvm_setup_syzos_vm$x86(r29, &(0x7f0000c00000/0x400000)=nil) syz_memcpy_off$IO_URING_METADATA_FLAGS(r30, 0x114, &(0x7f0000006180), 0x0, 0x4) r33 = socketcall$auto_SYS_SOCKET(0x1, &(0x7f0000006240)=0x5) shmctl$auto_SHM_INFO(0x80000000, 0xe, &(0x7f0000006340)={{0xfffffffa, r11, r27, 0x3, 0xffff, 0xe6b, 0x7}, 0x0, 0x357b, 0x3, 0x8000000000000000, @raw=0x74, @inferred=r21, 0xc0b, 0x0, &(0x7f0000006280)="7010159f68d5ae907137fa70d286a18ba48348f88d1fa097cfe82bb9559e66c97b4ccf3acd9ce240544907f4538170e45e0c6de8adfb6ae94ed44b616a63737814f1894473d9519f2130e8a0e061c96e46a99a5316e46b6b461348bb03dddad70675bcda5921bdb5038cc7dcade7ba3e106cf315e2ad48818a62c7", &(0x7f0000006300)="1368248ad908eb425081239c0a10a514ef06f16fa38bc52b0f03b04d36f544263cb4a0a3ffbbafa80089cf8b02841df433c6b97da8fbfe285fccd05ad4"}) syz_mount_image$fuse(&(0x7f00000061c0), &(0x7f0000006200)='./file0\x00', 0x400, &(0x7f00000063c0)={{'fd', 0x3d, r33}, 0x2c, {'rootmode', 0x3d, 0x1000}, 0x2c, {'user_id', 0x3d, r23}, 0x2c, {'group_id', 0x3d, r34}, 0x2c, {[{@blksize={'blksize', 0x3d, 0x600}}, {}, {@blksize={'blksize', 0x3d, 0x1e00}}, {@max_read={'max_read', 0x3d, 0x100000001}}, {@default_permissions}, {@default_permissions}], [{@euid_lt={'euid<', r13}}, {@subj_user={'subj_user', 0x3d, ','}}, {@uid_lt={'uid<', r26}}, {@audit}, {@dont_measure}]}}, 0x0, 0x0, &(0x7f0000006540)="d3aa92") syz_open_dev$I2C(&(0x7f0000006580), 0x800, 0x40000) syz_open_procfs(r5, &(0x7f00000065c0)='cgroup\x00') syz_open_pts(r14, 0x201) syz_pidfd_open(r35, 0x0) r36 = pkey_alloc(0x0, 0x2) syz_pkey_set(r36, 0x0) syz_socket_connect_nvme_tcp() r37 = syz_usb_connect(0x3, 0x504, &(0x7f0000006600)={{0x12, 0x1, 0x310, 0xf, 0x36, 0x49, 0x8, 0x7d0, 0x4101, 0x4624, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x4f2, 0x3, 0x1, 0xa2, 0x40, 0x64, [{{0x9, 0x4, 0xc2, 0x7, 0xa, 0x50, 0xb3, 0x17, 0x7, [@hid_hid={0x9, 0x21, 0x3, 0xdf, 0x1, {0x22, 0x238}}, @uac_as={[@as_header={0x7, 0x24, 0x1, 0x2, 0x2, 0x2}, @format_type_i_continuous={0xb, 0x24, 0x2, 0x1, 0xde, 0x2, 0x0, 0x5, "", "116df7"}, @format_type_ii_discrete={0xa, 0x24, 0x2, 0x2, 0x8, 0x3, 0x7, ';'}, @format_type_i_continuous={0xa, 0x24, 0x2, 0x1, 0x4, 0x3, 0x1a, 0x9, "0f58"}, @format_type_ii_discrete={0xc, 0x24, 0x2, 0x2, 0xf270, 0x100, 0x7, "3129f9"}, @format_type_i_continuous={0xb, 0x24, 0x2, 0x1, 0x1, 0x3, 0xf9, 0xa3, "", "540613"}]}], [{{0x9, 0x5, 0x3, 0x38, 0x8, 0x1, 0xf9, 0x0, [@uac_iso={0x7, 0x25, 0x1, 0x1, 0x80, 0xffb0}, @generic={0x62, 0xe, "0bef679d6359d71a144a38a22834d12bd19c60b65829f44ebe6b1258a3a7a0cc60f30007c2c4d2a3cb88fb6beb580e628147114ffc6a4e39b19e718fc2cd0fa5af688649abe3db58d0707203283b6bdca05f49fb16b3618fcf4dd01cb2ef3509"}]}}, {{0x9, 0x5, 0x4, 0x0, 0x20, 0x1, 0x2, 0x5, [@generic={0x4e, 0xa, "aade99ccf348061ad92225e05a396a2ebe892ca65de9efa665821e34200c5caa943c9b1a3eb10828e13815e6120c4787a4d395b1e32a8ba1ffb991375879d517862de6e9cb6f723335dd156a"}]}}, {{0x9, 0x5, 0x3, 0xc, 0x3ff, 0x7, 0x0, 0x7f, [@generic={0x33, 0xe, "08b928c563b3fbc136beaf22bf46e0cf55e3f262485f30b28a3f9a3ec901ce8066c6788d469526c55bf0c2b3ca5005539a"}]}}, {{0x9, 0x5, 0xb, 0x4, 0x3ff, 0x3, 0x40, 0x7f, [@uac_iso={0x7, 0x25, 0x1, 0x87, 0x9, 0x4e}, @generic={0xcb, 0x11, "3b9dcacc679086d78f927ab634935a18813b23cceffea69b630aa97cc469907afac2a30327adeb901d9fb900ad82138098cbff5fed7fee2c7d701290ce4ad020a9da29675f8f051399879db57022b89c990120513aaa70c51847b128dd73bdea25cbb545c1ae8352024ca93cd7ea881cbb0920eedef072efe9da61b7bd77a3c085d712c142ca88c39f8edd17d6fb9a7ef8d0fad5a15a333e7ed05e7e9ae6e2a464c3159ab1a60e33afbf29a2f678c8c9e2f8f7a8d03d5582529b277b4be85583e5d81bc95749773042"}]}}, {{0x9, 0x5, 0x1, 0x3, 0x8, 0xe, 0x8, 0x7f, [@generic={0x72, 0x6, "6ee2410469b7a8b23e3255a554b63d5beb1b34b4871894e3df69e7558ce56cc83b83ae1ac9d1dec0882d040a7801a300c7eac26d78d2daff6bd47caca500d46c1b5a0b9e1ada0e7b606b6fd6b39db81c7c954c04d4ede980ea2ca80b113bdb4be747e1b6dc9281d77e85683aaac6534c"}]}}, {{0x9, 0x5, 0xb, 0xc, 0x5bf5a5d27b9960e1, 0x0, 0x1, 0x7}}, {{0x9, 0x5, 0x0, 0x0, 0x10, 0x5, 0x1, 0x77}}, {{0x9, 0x5, 0x5, 0x0, 0x208, 0x1b, 0x9, 0x7}}, {{0x9, 0x5, 0xf, 0x0, 0x40, 0x30, 0x5, 0x7, [@generic={0x50, 0x6, "011daf9ad3aea956d0184e8907d7b0b0a6aa9e921ac64d7a9e5a0ce5b5e0afb47868c9c4a76b6509835bf9ee45a7891eaad172a875634f7f36260124669b2d1b04c2fda38cc936921cb561245efa"}, @generic={0xb7, 0x21, "53542a37449c9d1a4e696a99527d5ad5bdad1c7e724128df50295aa0c61401ca6cd5cd356977f617e8b11448466269116af93b9dce05ded48792719f65bfa91da16b85ee1d6236084d8170f97c0a74f102663c645b0ee1b0fa7904e646438d8b16218604561c1abb98289e3ecba88e78f67361478774462a4d82749646452004b2482082e9c1b2f2972419f6f752e1bec5e1925fce215edb8265344da85b85164db3c633e4e431fec4c609664eac2b6b1f5f7bdc10"}]}}, {{0x9, 0x5, 0xc, 0x10, 0x10, 0x3, 0xf9, 0xff, [@generic={0xba, 0x23, "5c48a51f46fa078d84ce434e722a7fa4e7021ae9d9b76677366de6a10ab3e94e0969d7fc2a24536e1150d94672c5418b02951def7e20c7dfe0aa26adbf0bfd8f6dd351fa30990713537134af9c14fa84dee2b95af8e134542b5a1ad540329a97cbdd1a2422f13e6e03b49f7105a6bf4900ea723fbe14f21d182aeef2cf5162591f8bd38b85d45d723cef02132b5e45467dd8d430c378b8bf2d98403267010379de7bd04c800dfd5fae0c0ddac0b5cffde98ca400dce30ddd"}]}}]}}, {{0x9, 0x4, 0xfc, 0x4, 0x1, 0xff, 0x6, 0x39, 0xc, [], [{{0x9, 0x5, 0x0, 0x2, 0x400, 0x9, 0xdf, 0x2, [@uac_iso={0x7, 0x25, 0x1, 0x3, 0x8, 0x8000}]}}]}}, {{0x9, 0x4, 0x9d, 0x1, 0x3, 0x48, 0x48, 0x40, 0xa, [], [{{0x9, 0x5, 0x1, 0x10, 0x40, 0x2, 0xf1, 0xc, [@uac_iso={0x7, 0x25, 0x1, 0x81, 0x81, 0x5}]}}, {{0x9, 0x5, 0x7, 0x8, 0x40, 0x6, 0x0, 0x1, [@uac_iso={0x7, 0x25, 0x1, 0x2, 0x0, 0x10}, @generic={0x6, 0xe, "555dc78c"}]}}, {{0x9, 0x5, 0x5, 0x4, 0x200, 0x9, 0x40, 0x3}}]}}]}}]}}, &(0x7f0000006c00)={0xa, &(0x7f0000006b40)={0xa, 0x6, 0x200, 0x3b, 0x5, 0x9, 0x40, 0xa4}, 0x30, &(0x7f0000006b80)={0x5, 0xf, 0x30, 0x3, [@ptm_cap={0x3}, @ssp_cap={0x10, 0x10, 0xa, 0x1c, 0x1, 0x7ffffd3, 0xff00, 0x1fb, [0x0]}, @ssp_cap={0x18, 0x10, 0xa, 0xf, 0x3, 0x8, 0xff00, 0xd00, [0x0, 0xffc0cf, 0xff0000]}]}, 0x1, [{0x4, &(0x7f0000006bc0)=@lang_id={0x4, 0x3, 0x42f}}]}) r38 = syz_usb_connect_ath9k(0x3, 0x5a, &(0x7f0000006c40)={{0x12, 0x1, 0x200, 0xff, 0xff, 0xff, 0x40, 0xcf3, 0x9271, 0x108, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x48}}]}}, 0x0) r39 = syz_usb_connect$cdc_ecm(0x6, 0x8f, &(0x7f0000006cc0)={{0x12, 0x1, 0x310, 0x2, 0x0, 0x0, 0x8, 0x525, 0xa4a1, 0x40, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x7d, 0x1, 0x1, 0x6, 0x10, 0xb, [{{0x9, 0x4, 0x0, 0x4, 0x3, 0x2, 0x6, 0x0, 0xe, {{0xb, 0x24, 0x6, 0x0, 0x0, "d60132f149c6"}, {0x5, 0x24, 0x0, 0xbb8}, {0xd, 0x24, 0xf, 0x1, 0x7, 0x32a, 0x8, 0x1f}, [@obex={0x5, 0x24, 0x15, 0x101}, @mdlm={0x15, 0x24, 0x12, 0xfffc}, @network_terminal={0x7, 0x24, 0xa, 0xb, 0x9, 0xf, 0x2}, @call_mgmt={0x5, 0x24, 0x1, 0x1, 0xff}, @obex={0x5, 0x24, 0x15, 0x7ff}, @mbim_extended={0x8, 0x24, 0x1c, 0x5, 0x32, 0xa}]}, {[{{0x9, 0x5, 0x81, 0x3, 0x10, 0x7, 0x99, 0xb2}}], {{0x9, 0x5, 0x82, 0x2, 0x8, 0x1a, 0x7, 0xc4}}, {{0x9, 0x5, 0x3, 0x2, 0x3ff, 0xa6, 0x3, 0xa7}}}}}]}}]}}, &(0x7f0000007240)={0xa, &(0x7f0000006d80)={0xa, 0x6, 0x300, 0xfb, 0x3, 0xc, 0xff, 0x1}, 0x3c, &(0x7f0000006dc0)={0x5, 0xf, 0x3c, 0x6, [@ext_cap={0x7, 0x10, 0x2, 0x4, 0x7, 0x7, 0x56a9}, @wireless={0xb, 0x10, 0x1, 0x4, 0x42, 0x2, 0x3, 0x63ac, 0x9}, @ptm_cap={0x3}, @ext_cap={0x7, 0x10, 0x2, 0x1a, 0x7, 0xb, 0xd5}, @ssp_cap={0x10, 0x10, 0xa, 0x7f, 0x1, 0x12f, 0xf00, 0x1, [0x3fc0]}, @wireless={0xb, 0x10, 0x1, 0x8, 0x40, 0x7, 0x5, 0x2, 0x4}]}, 0x8, [{0x78, &(0x7f0000006e00)=@string={0x78, 0x3, "d7b4cadb72dce27ca7fb5209aad1b3585c8188f06126d3f18edd4cfa47addbd2a6715dd4adfa697f02bcb089ed2013268885f9c785bd7c5d4ee50de3cecd7a9d0b7b2e708226e8acb1e908b1f5c0c2a8132465e451fe49f15e60c8d3b9c84305d0dd8f634480050259cac3ce9cfc95092bd7e491866d"}}, {0x13, &(0x7f0000006e80)=@string={0x13, 0x3, "7d97d9eb8af2943b9985d30caaead89b5a"}}, {0x4, &(0x7f0000006ec0)=@lang_id={0x4, 0x3, 0x44a}}, {0x4, &(0x7f0000006f00)=@lang_id={0x4, 0x3, 0x1c09}}, {0x93, &(0x7f0000006f40)=@string={0x93, 0x3, "a7e5529238f796c9000c753f41b8183140f3914b76bf1c428ebe8d39c6f072b481ecad746274e7c538790d8c730d20517a2244a3781b115c07d40e9ec9c059f12d0d15f46ccf0cde26efa9d02a119e2cc5627c7f4241244d0843ef0018b12fc3cd467b5fdce58a6975d07ac352a42f1615178dcb0990aeca46461306816becdeb896bac765ded81ebd75ba4d97229b15a9"}}, {0xc2, &(0x7f0000007000)=@string={0xc2, 0x3, "d5a3d483012b31e49dfa33fd9593b4b668aa6f3f39301837d951daf256316819f5e71fa651bb06b2af65af27c7bf0fda1eaa1e32231b75f4d06d4923c76013e9d76a12202816ff8740a9fb4f2eceb27bd2e1ab1e7bd4ba7314b33d15e0fe65aa2b2e7ffb3236cb615493391feab3bfb828182fb60c4fd6fef422e106f384be633905ca1aaf83d9ddb2a2902e2a117de4e596145809b3b34b1ea432b412391ffb25ac255e7da11d994e7e9e98e0723a2757e580959dae6fa7ac2afb8dc5384b4a"}}, {0x5b, &(0x7f0000007100)=@string={0x5b, 0x3, "a794090968e46e97b7269fcae0f818bf9a99a50de60e5cda684721be6dc34820f912c338d7dc8ac50d93fc92a2ebde1a02652089726608a9e5877f4cacf91b9eec5b5eb2fc7fa7bb3d26607537f0e55d00793e7cf13bbb367e"}}, {0x90, &(0x7f0000007180)=@string={0x90, 0x3, "f9926b0dae8c462352105ed1c4d3ff50cc9ce982c397e92e576101317190c2327a2ba723844149e55f4b961d0f0defbc7edb70f5d61169074265acd81ceec5a15b66a5e5009236d062994af9afcbe04736aaad6bb55cb30e057c42d0df7481603c3c959b5e4e20f05382a9d9ad4c01680ae3597ef403dedf0b6c53fdc70d13ed116ef9ea902093f1c9f4af4cec25"}}]}) syz_usb_control_io(r39, &(0x7f0000007480)={0x2c, &(0x7f00000072c0)={0x40, 0x7, 0x1b, {0x1b, 0xa, "90730f1d9e91d2e1df577143e18c680eace6d6c12299246128"}}, &(0x7f0000007300)={0x0, 0x3, 0x44, @string={0x44, 0x3, "87d74dd46096809a8f4988ddaa95a532fbc22d8585d1592857ad0ab00c17a4fef3b229a02fe0e3649316bed9f44f588b1f0b47bc86705129440938bd68a29a84f829"}}, &(0x7f0000007380)={0x0, 0xf, 0x41, {0x5, 0xf, 0x41, 0x4, [@ssp_cap={0x20, 0x10, 0xa, 0x0, 0x5, 0xe85, 0xf00, 0x3, [0xff00a0, 0xff00f0, 0x30, 0xf, 0xdfbf]}, @ext_cap={0x7, 0x10, 0x2, 0x4, 0x4, 0x1, 0xff}, @wireless={0xb, 0x10, 0x1, 0x2, 0x1, 0x1, 0x3, 0x9, 0x8}, @ss_cap={0xa, 0x10, 0x3, 0x2, 0x4, 0x3, 0xb6, 0x5}]}}, &(0x7f0000007400)={0x20, 0x29, 0xf, {0xf, 0x29, 0xf, 0x4, 0x6, 0x32, "b2c84f72", "f5fb7b90"}}, &(0x7f0000007440)={0x20, 0x2a, 0xc, {0xc, 0x2a, 0x3a, 0x60, 0x4, 0x4, 0x7, 0x8001, 0x8}}}, &(0x7f0000007980)={0x84, &(0x7f00000074c0)={0x0, 0x0, 0xcf, "9f51c6ee54bfc1fc30d787499ab24493c2f30f78fe088e724ad29badb6c2406874a909d80e000075bbe92f6f4e8b3514481d12b869deb6f47f3b458369b7f024fcc02319e38cb7467c76b370d378ee0256daa3acea1f71be5e4c7d8a50037ba84e62445bbd990a26b44f60198d63505fbf005b96637abf5eb692a2ed0d582692e3f259387ed9d1955917dc53a246eb20e281e78386ed8734b81075e43b5b3e15ea60dbd497e07ad8847992dd87831b20d05263c108d70117e52170efac1777d3d376876358c2297172b2a023b52c05"}, &(0x7f00000075c0)={0x0, 0xa, 0x1, 0x2}, &(0x7f0000007600)={0x0, 0x8, 0x1, 0xfc}, &(0x7f0000007640)={0x20, 0x0, 0x4, {0x3, 0x1}}, &(0x7f0000007680)={0x20, 0x0, 0x4, {0x1d20, 0x20}}, &(0x7f00000076c0)={0x40, 0x7, 0x2, 0xfff8}, &(0x7f0000007700)={0x40, 0x9, 0x1, 0xd}, &(0x7f0000007740)={0x40, 0xb, 0x2, "2289"}, &(0x7f0000007780)={0x40, 0xf, 0x2, 0x2}, &(0x7f00000077c0)={0x40, 0x13, 0x6, @broadcast}, &(0x7f0000007800)={0x40, 0x17, 0x6, @random="eefa7a620165"}, &(0x7f0000007840)={0x40, 0x19, 0x2, "01d3"}, &(0x7f0000007880)={0x40, 0x1a, 0x2, 0x5}, &(0x7f00000078c0)={0x40, 0x1c, 0x1, 0xff}, &(0x7f0000007900)={0x40, 0x1e, 0x1, 0xf7}, &(0x7f0000007940)={0x40, 0x21, 0x1, 0xb}}) syz_usb_disconnect(r38) r40 = syz_usb_connect$hid(0x0, 0x3f, &(0x7f0000007a40)={{0x12, 0x1, 0x110, 0x0, 0x0, 0x0, 0xff, 0x46d, 0xc08d, 0x40, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x2d, 0x1, 0x1, 0x4, 0x50, 0x10, [{{0x9, 0x4, 0x0, 0xf9, 0x2, 0x3, 0x1, 0x2, 0x5, {0x9, 0x21, 0x81, 0x8, 0x1, {0x22, 0x6e7}}, {{{0x9, 0x5, 0x81, 0x3, 0x10, 0x8, 0xc, 0x6e}}, [{{0x9, 0x5, 0x2, 0x3, 0x200, 0x8, 0x1, 0x50}}]}}}]}}]}}, &(0x7f0000007f40)={0xa, &(0x7f0000007a80)={0xa, 0x6, 0x310, 0x48, 0xa5, 0xca, 0x8, 0x10}, 0x30, &(0x7f0000007ac0)={0x5, 0xf, 0x30, 0x4, [@ss_cap={0xa, 0x10, 0x3, 0x0, 0x5, 0x0, 0x1, 0x8a}, @ssp_cap={0x10, 0x10, 0xa, 0xa, 0x1, 0x0, 0xf00f, 0x7, [0x3f00]}, @ss_cap={0xa, 0x10, 0x3, 0x0, 0x4, 0x4, 0x8, 0xfff8}, @ext_cap={0x7, 0x10, 0x2, 0x4, 0x0, 0x5, 0x8001}]}, 0xa, [{0x4, &(0x7f0000007b00)=@lang_id={0x4, 0x3, 0x437}}, {0xf2, &(0x7f0000007b40)=@string={0xf2, 0x3, "f0019969b38f6afabd6c105967f2b79c116bf52e6af549271939cbeacdab5c8503cee7d1a67a62ea491b6b2f8647133f15b8e9707e4a77577e8afd8a1284459b66c7be93c43e84efcfc2f73e93d295998cc2f495ae5b1a3d5e12ef6e64664a3b5c79528b0119f78b0a61d807232537eb3d9c09add93823e6f878bbba00898be1017faf4e5f14d387401c45645954c04f8c83f9e5f0ae9913d9ccb88e7516d80f8e21c3b610429258169248a016de144abce7905f4dd3bf2698e9f3a5febc7c10ef4ed298e5f8facbb3c9344bb3ab33568a0f64f428d60dabe2bfe795df0603cdf76f606241fdd89c8ff9fe55ee2395fd"}}, {0x4, &(0x7f0000007c40)=@lang_id={0x4, 0x3, 0x2c0a}}, {0x89, &(0x7f0000007c80)=@string={0x89, 0x3, "05b7615d7a2ba83f5916d585e5290669a0c243e1c65f43d6c7680767f0da6805ce3566413a20f4b8664b77799c5c6061d9d19075d2f89b880caa622d3aa9108e5222e55336bf7850d2f7990a1314b0be81d606f8a99a6705e0ac44872072366abaea5f97d7ca08ed1eb25b707c92991e5537f945aa401d761349b628d6c928c1cfe5b09fd13272"}}, {0xb8, &(0x7f0000007d40)=@string={0xb8, 0x3, "f04a78648bb13ad6c53b44e42ed2f24d3205bf5161674ff375ecfa9f710dd4d52e29779bc4c1d41faf1b2e02fa2cb4ca6c449681b5c88b3775f82babde2258f8a001d811f8b64ce0753b228c161809770f39160ba4ea92490a38f82c3f18b44c81a148c48bbc4f716e64a85a985f3570d6132a4ac6e97f0ae7296582879c5d4e277be3d5867dc3df2606879bd5281225a34f3feba436eec16ddfbe611574be645a71c5e8be494e27918333f2431aeff2e9fed0608428"}}, {0x4, &(0x7f0000007e00)=@lang_id={0x4, 0x3, 0x40f}}, {0x4, &(0x7f0000007e40)=@lang_id={0x4, 0x3, 0x860}}, {0x4, &(0x7f0000007e80)=@lang_id={0x4, 0x3, 0xf4ef}}, {0x4, &(0x7f0000007ec0)=@lang_id={0x4, 0x3, 0x3001}}, {0x4, &(0x7f0000007f00)=@lang_id={0x4, 0x3, 0x2009}}]}) syz_usb_ep_read(r40, 0x0, 0x1000, &(0x7f0000008000)=""/4096) syz_usb_ep_write(r37, 0x6, 0x94, &(0x7f0000009000)="57bba2f04f3945da7a47037710f6d53d8dfad8a96c57e11cf5fcfee434fce88038e1904ecc2712334118e5002b0c107c286eb90314233fd5ce1d9ea5da0076741102d88517463ff118bd931282412de1f5ea71eb2bec91b82b7f7b64f8aae1d58e32de1deeb1c8264d59d639a1945f0090275e6bdbf18e86685ccb60a5fec9c7cebac5d05b5c84e6116f89d443fad3ce74d82080") syz_usbip_server_init(0x5) csource_test.go:158: failed to build program: // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifndef __NR_clone3 #define __NR_clone3 435 #endif #ifndef __NR_io_uring_setup #define __NR_io_uring_setup 425 #endif #ifndef __NR_memfd_create #define __NR_memfd_create 319 #endif #ifndef __NR_pidfd_open #define __NR_pidfd_open 434 #endif #ifndef __NR_pkey_alloc #define __NR_pkey_alloc 330 #endif #ifndef __NR_statx #define __NR_statx 332 #endif static unsigned long long procid; static void sleep_ms(uint64_t ms) { usleep(ms * 1000); } static uint64_t current_time_ms(void) { struct timespec ts; if (clock_gettime(CLOCK_MONOTONIC, &ts)) exit(1); return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000; } static void use_temporary_dir(void) { char tmpdir_template[] = "./syzkaller.XXXXXX"; char* tmpdir = mkdtemp(tmpdir_template); if (!tmpdir) exit(1); if (chmod(tmpdir, 0777)) exit(1); if (chdir(tmpdir)) exit(1); } static void thread_start(void* (*fn)(void*), void* arg) { pthread_t th; pthread_attr_t attr; pthread_attr_init(&attr); pthread_attr_setstacksize(&attr, 128 << 10); int i = 0; for (; i < 100; i++) { if (pthread_create(&th, &attr, fn, arg) == 0) { pthread_attr_destroy(&attr); return; } if (errno == EAGAIN) { usleep(50); continue; } break; } exit(1); } #define BITMASK(bf_off,bf_len) (((1ull << (bf_len)) - 1) << (bf_off)) #define STORE_BY_BITMASK(type,htobe,addr,val,bf_off,bf_len) *(type*)(addr) = htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) | (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len)))) typedef struct { int state; } event_t; static void event_init(event_t* ev) { ev->state = 0; } static void event_reset(event_t* ev) { ev->state = 0; } static void event_set(event_t* ev) { if (ev->state) exit(1); __atomic_store_n(&ev->state, 1, __ATOMIC_RELEASE); syscall(SYS_futex, &ev->state, FUTEX_WAKE | FUTEX_PRIVATE_FLAG, 1000000); } static void event_wait(event_t* ev) { while (!__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE)) syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, 0); } static int event_isset(event_t* ev) { return __atomic_load_n(&ev->state, __ATOMIC_ACQUIRE); } static int event_timedwait(event_t* ev, uint64_t timeout) { uint64_t start = current_time_ms(); uint64_t now = start; for (;;) { uint64_t remain = timeout - (now - start); struct timespec ts; ts.tv_sec = remain / 1000; ts.tv_nsec = (remain % 1000) * 1000 * 1000; syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, &ts); if (__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE)) return 1; now = current_time_ms(); if (now - start > timeout) return 0; } } static bool write_file(const char* file, const char* what, ...) { char buf[1024]; va_list args; va_start(args, what); vsnprintf(buf, sizeof(buf), what, args); va_end(args); buf[sizeof(buf) - 1] = 0; int len = strlen(buf); int fd = open(file, O_WRONLY | O_CLOEXEC); if (fd == -1) return false; if (write(fd, buf, len) != len) { int err = errno; close(fd); errno = err; return false; } close(fd); return true; } struct nlmsg { char* pos; int nesting; struct nlattr* nested[8]; char buf[4096]; }; static void netlink_init(struct nlmsg* nlmsg, int typ, int flags, const void* data, int size) { memset(nlmsg, 0, sizeof(*nlmsg)); struct nlmsghdr* hdr = (struct nlmsghdr*)nlmsg->buf; hdr->nlmsg_type = typ; hdr->nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK | flags; memcpy(hdr + 1, data, size); nlmsg->pos = (char*)(hdr + 1) + NLMSG_ALIGN(size); } static void netlink_attr(struct nlmsg* nlmsg, int typ, const void* data, int size) { struct nlattr* attr = (struct nlattr*)nlmsg->pos; attr->nla_len = sizeof(*attr) + size; attr->nla_type = typ; if (size > 0) memcpy(attr + 1, data, size); nlmsg->pos += NLMSG_ALIGN(attr->nla_len); } static int netlink_send_ext(struct nlmsg* nlmsg, int sock, uint16_t reply_type, int* reply_len, bool dofail) { if (nlmsg->pos > nlmsg->buf + sizeof(nlmsg->buf) || nlmsg->nesting) exit(1); struct nlmsghdr* hdr = (struct nlmsghdr*)nlmsg->buf; hdr->nlmsg_len = nlmsg->pos - nlmsg->buf; struct sockaddr_nl addr; memset(&addr, 0, sizeof(addr)); addr.nl_family = AF_NETLINK; ssize_t n = sendto(sock, nlmsg->buf, hdr->nlmsg_len, 0, (struct sockaddr*)&addr, sizeof(addr)); if (n != (ssize_t)hdr->nlmsg_len) { if (dofail) exit(1); return -1; } n = recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0); if (reply_len) *reply_len = 0; if (n < 0) { if (dofail) exit(1); return -1; } if (n < (ssize_t)sizeof(struct nlmsghdr)) { errno = EINVAL; if (dofail) exit(1); return -1; } if (hdr->nlmsg_type == NLMSG_DONE) return 0; if (reply_len && hdr->nlmsg_type == reply_type) { *reply_len = n; return 0; } if (n < (ssize_t)(sizeof(struct nlmsghdr) + sizeof(struct nlmsgerr))) { errno = EINVAL; if (dofail) exit(1); return -1; } if (hdr->nlmsg_type != NLMSG_ERROR) { errno = EINVAL; if (dofail) exit(1); return -1; } errno = -((struct nlmsgerr*)(hdr + 1))->error; return -errno; } static int netlink_query_family_id(struct nlmsg* nlmsg, int sock, const char* family_name, bool dofail) { struct genlmsghdr genlhdr; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = CTRL_CMD_GETFAMILY; netlink_init(nlmsg, GENL_ID_CTRL, 0, &genlhdr, sizeof(genlhdr)); netlink_attr(nlmsg, CTRL_ATTR_FAMILY_NAME, family_name, strnlen(family_name, GENL_NAMSIZ - 1) + 1); int n = 0; int err = netlink_send_ext(nlmsg, sock, GENL_ID_CTRL, &n, dofail); if (err < 0) { return -1; } uint16_t id = 0; struct nlattr* attr = (struct nlattr*)(nlmsg->buf + NLMSG_HDRLEN + NLMSG_ALIGN(sizeof(genlhdr))); for (; (char*)attr < nlmsg->buf + n; attr = (struct nlattr*)((char*)attr + NLMSG_ALIGN(attr->nla_len))) { if (attr->nla_type == CTRL_ATTR_FAMILY_ID) { id = *(uint16_t*)(attr + 1); break; } } if (!id) { errno = EINVAL; return -1; } recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0); return id; } const int kInitNetNsFd = 201; #define WIFI_INITIAL_DEVICE_COUNT 2 #define WIFI_MAC_BASE { 0x08, 0x02, 0x11, 0x00, 0x00, 0x00} #define WIFI_IBSS_BSSID { 0x50, 0x50, 0x50, 0x50, 0x50, 0x50} #define WIFI_IBSS_SSID { 0x10, 0x10, 0x10, 0x10, 0x10, 0x10} #define WIFI_DEFAULT_FREQUENCY 2412 #define WIFI_DEFAULT_SIGNAL 0 #define WIFI_DEFAULT_RX_RATE 1 #define HWSIM_CMD_REGISTER 1 #define HWSIM_CMD_FRAME 2 #define HWSIM_CMD_NEW_RADIO 4 #define HWSIM_ATTR_SUPPORT_P2P_DEVICE 14 #define HWSIM_ATTR_PERM_ADDR 22 #define IF_OPER_UP 6 struct join_ibss_props { int wiphy_freq; bool wiphy_freq_fixed; uint8_t* mac; uint8_t* ssid; int ssid_len; }; static int set_interface_state(const char* interface_name, int on) { struct ifreq ifr; int sock = socket(AF_INET, SOCK_DGRAM, 0); if (sock < 0) { return -1; } memset(&ifr, 0, sizeof(ifr)); strcpy(ifr.ifr_name, interface_name); int ret = ioctl(sock, SIOCGIFFLAGS, &ifr); if (ret < 0) { close(sock); return -1; } if (on) ifr.ifr_flags |= IFF_UP; else ifr.ifr_flags &= ~IFF_UP; ret = ioctl(sock, SIOCSIFFLAGS, &ifr); close(sock); if (ret < 0) { return -1; } return 0; } static int nl80211_set_interface(struct nlmsg* nlmsg, int sock, int nl80211_family, uint32_t ifindex, uint32_t iftype, bool dofail) { struct genlmsghdr genlhdr; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = NL80211_CMD_SET_INTERFACE; netlink_init(nlmsg, nl80211_family, 0, &genlhdr, sizeof(genlhdr)); netlink_attr(nlmsg, NL80211_ATTR_IFINDEX, &ifindex, sizeof(ifindex)); netlink_attr(nlmsg, NL80211_ATTR_IFTYPE, &iftype, sizeof(iftype)); int err = netlink_send_ext(nlmsg, sock, 0, NULL, dofail); if (err < 0) { } return err; } static int nl80211_join_ibss(struct nlmsg* nlmsg, int sock, int nl80211_family, uint32_t ifindex, struct join_ibss_props* props, bool dofail) { struct genlmsghdr genlhdr; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = NL80211_CMD_JOIN_IBSS; netlink_init(nlmsg, nl80211_family, 0, &genlhdr, sizeof(genlhdr)); netlink_attr(nlmsg, NL80211_ATTR_IFINDEX, &ifindex, sizeof(ifindex)); netlink_attr(nlmsg, NL80211_ATTR_SSID, props->ssid, props->ssid_len); netlink_attr(nlmsg, NL80211_ATTR_WIPHY_FREQ, &(props->wiphy_freq), sizeof(props->wiphy_freq)); if (props->mac) netlink_attr(nlmsg, NL80211_ATTR_MAC, props->mac, ETH_ALEN); if (props->wiphy_freq_fixed) netlink_attr(nlmsg, NL80211_ATTR_FREQ_FIXED, NULL, 0); int err = netlink_send_ext(nlmsg, sock, 0, NULL, dofail); if (err < 0) { } return err; } static int get_ifla_operstate(struct nlmsg* nlmsg, int ifindex, bool dofail) { struct ifinfomsg info; memset(&info, 0, sizeof(info)); info.ifi_family = AF_UNSPEC; info.ifi_index = ifindex; int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE); if (sock == -1) { return -1; } netlink_init(nlmsg, RTM_GETLINK, 0, &info, sizeof(info)); int n; int err = netlink_send_ext(nlmsg, sock, RTM_NEWLINK, &n, dofail); close(sock); if (err) { return -1; } struct rtattr* attr = IFLA_RTA(NLMSG_DATA(nlmsg->buf)); for (; RTA_OK(attr, n); attr = RTA_NEXT(attr, n)) { if (attr->rta_type == IFLA_OPERSTATE) return *((int32_t*)RTA_DATA(attr)); } return -1; } static int await_ifla_operstate(struct nlmsg* nlmsg, char* interface, int operstate, bool dofail) { int ifindex = if_nametoindex(interface); while (true) { usleep(1000); int ret = get_ifla_operstate(nlmsg, ifindex, dofail); if (ret < 0) return ret; if (ret == operstate) return 0; } return 0; } static int nl80211_setup_ibss_interface(struct nlmsg* nlmsg, int sock, int nl80211_family_id, char* interface, struct join_ibss_props* ibss_props, bool dofail) { int ifindex = if_nametoindex(interface); if (ifindex == 0) { return -1; } int ret = nl80211_set_interface(nlmsg, sock, nl80211_family_id, ifindex, NL80211_IFTYPE_ADHOC, dofail); if (ret < 0) { return -1; } ret = set_interface_state(interface, 1); if (ret < 0) { return -1; } ret = nl80211_join_ibss(nlmsg, sock, nl80211_family_id, ifindex, ibss_props, dofail); if (ret < 0) { return -1; } return 0; } #define SIZEOF_IO_URING_SQE 64 #define SIZEOF_IO_URING_CQE 16 #define SQ_HEAD_OFFSET 0 #define SQ_TAIL_OFFSET 64 #define SQ_RING_MASK_OFFSET 256 #define SQ_RING_ENTRIES_OFFSET 264 #define SQ_FLAGS_OFFSET 276 #define SQ_DROPPED_OFFSET 272 #define CQ_HEAD_OFFSET 128 #define CQ_TAIL_OFFSET 192 #define CQ_RING_MASK_OFFSET 260 #define CQ_RING_ENTRIES_OFFSET 268 #define CQ_RING_OVERFLOW_OFFSET 284 #define CQ_FLAGS_OFFSET 280 #define CQ_CQES_OFFSET 320 struct io_uring_cqe { uint64_t user_data; uint32_t res; uint32_t flags; }; static long syz_io_uring_complete(volatile long a0) { char* ring_ptr = (char*)a0; uint32_t cq_ring_mask = *(uint32_t*)(ring_ptr + CQ_RING_MASK_OFFSET); uint32_t* cq_head_ptr = (uint32_t*)(ring_ptr + CQ_HEAD_OFFSET); uint32_t cq_head = *cq_head_ptr & cq_ring_mask; uint32_t cq_head_next = *cq_head_ptr + 1; char* cqe_src = ring_ptr + CQ_CQES_OFFSET + cq_head * SIZEOF_IO_URING_CQE; struct io_uring_cqe cqe; memcpy(&cqe, cqe_src, sizeof(cqe)); __atomic_store_n(cq_head_ptr, cq_head_next, __ATOMIC_RELEASE); return (cqe.user_data == 0x12345 || cqe.user_data == 0x23456) ? (long)cqe.res : (long)-1; } struct io_sqring_offsets { uint32_t head; uint32_t tail; uint32_t ring_mask; uint32_t ring_entries; uint32_t flags; uint32_t dropped; uint32_t array; uint32_t resv1; uint64_t resv2; }; struct io_cqring_offsets { uint32_t head; uint32_t tail; uint32_t ring_mask; uint32_t ring_entries; uint32_t overflow; uint32_t cqes; uint64_t resv[2]; }; struct io_uring_params { uint32_t sq_entries; uint32_t cq_entries; uint32_t flags; uint32_t sq_thread_cpu; uint32_t sq_thread_idle; uint32_t features; uint32_t resv[4]; struct io_sqring_offsets sq_off; struct io_cqring_offsets cq_off; }; #define IORING_OFF_SQ_RING 0 #define IORING_OFF_SQES 0x10000000ULL #define IORING_SETUP_SQE128 (1U << 10) #define IORING_SETUP_CQE32 (1U << 11) static long syz_io_uring_setup(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { uint32_t entries = (uint32_t)a0; struct io_uring_params* setup_params = (struct io_uring_params*)a1; void** ring_ptr_out = (void**)a2; void** sqes_ptr_out = (void**)a3; setup_params->flags &= ~(IORING_SETUP_CQE32 | IORING_SETUP_SQE128); uint32_t fd_io_uring = syscall(__NR_io_uring_setup, entries, setup_params); uint32_t sq_ring_sz = setup_params->sq_off.array + setup_params->sq_entries * sizeof(uint32_t); uint32_t cq_ring_sz = setup_params->cq_off.cqes + setup_params->cq_entries * SIZEOF_IO_URING_CQE; uint32_t ring_sz = sq_ring_sz > cq_ring_sz ? sq_ring_sz : cq_ring_sz; *ring_ptr_out = mmap(0, ring_sz, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_POPULATE, fd_io_uring, IORING_OFF_SQ_RING); uint32_t sqes_sz = setup_params->sq_entries * SIZEOF_IO_URING_SQE; *sqes_ptr_out = mmap(0, sqes_sz, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_POPULATE, fd_io_uring, IORING_OFF_SQES); uint32_t* array = (uint32_t*)((uintptr_t)*ring_ptr_out + setup_params->sq_off.array); for (uint32_t index = 0; index < entries; index++) array[index] = index; return fd_io_uring; } static long syz_io_uring_submit(volatile long a0, volatile long a1, volatile long a2) { char* ring_ptr = (char*)a0; char* sqes_ptr = (char*)a1; char* sqe = (char*)a2; uint32_t sq_ring_mask = *(uint32_t*)(ring_ptr + SQ_RING_MASK_OFFSET); uint32_t* sq_tail_ptr = (uint32_t*)(ring_ptr + SQ_TAIL_OFFSET); uint32_t sq_tail = *sq_tail_ptr & sq_ring_mask; char* sqe_dest = sqes_ptr + sq_tail * SIZEOF_IO_URING_SQE; memcpy(sqe_dest, sqe, SIZEOF_IO_URING_SQE); uint32_t sq_tail_next = *sq_tail_ptr + 1; __atomic_store_n(sq_tail_ptr, sq_tail_next, __ATOMIC_RELEASE); return 0; } #define VHCI_HC_PORTS 8 #define VHCI_PORTS (VHCI_HC_PORTS * 2) static long syz_usbip_server_init(volatile long a0) { static int port_alloc[2]; int speed = (int)a0; bool usb3 = (speed == USB_SPEED_SUPER); int socket_pair[2]; if (socketpair(AF_UNIX, SOCK_STREAM, 0, socket_pair)) { return -1; } int client_fd = socket_pair[0]; int server_fd = socket_pair[1]; int available_port_num = __atomic_fetch_add(&port_alloc[usb3], 1, __ATOMIC_RELAXED); if (available_port_num > VHCI_HC_PORTS) { return -1; } int port_num = procid * VHCI_PORTS + usb3 * VHCI_HC_PORTS + available_port_num; char buffer[100]; sprintf(buffer, "%d %d %s %d", port_num, client_fd, "0", speed); write_file("/sys/devices/platform/vhci_hcd.0/attach", buffer); return server_fd; } #define BTF_MAGIC 0xeB9F struct btf_header { __u16 magic; __u8 version; __u8 flags; __u32 hdr_len; __u32 type_off; __u32 type_len; __u32 str_off; __u32 str_len; }; #define BTF_INFO_KIND(info) (((info) >> 24) & 0x0f) #define BTF_INFO_VLEN(info) ((info) & 0xffff) #define BTF_KIND_INT 1 #define BTF_KIND_ARRAY 3 #define BTF_KIND_STRUCT 4 #define BTF_KIND_UNION 5 #define BTF_KIND_ENUM 6 #define BTF_KIND_FUNC_PROTO 13 #define BTF_KIND_VAR 14 #define BTF_KIND_DATASEC 15 struct btf_type { __u32 name_off; __u32 info; union { __u32 size; __u32 type; }; }; struct btf_enum { __u32 name_off; __s32 val; }; struct btf_array { __u32 type; __u32 index_type; __u32 nelems; }; struct btf_member { __u32 name_off; __u32 type; __u32 offset; }; struct btf_param { __u32 name_off; __u32 type; }; struct btf_var { __u32 linkage; }; struct btf_var_secinfo { __u32 type; __u32 offset; __u32 size; }; #define VMLINUX_MAX_SUPPORT_SIZE (10 * 1024 * 1024) static char* read_btf_vmlinux() { static bool is_read = false; static char buf[VMLINUX_MAX_SUPPORT_SIZE]; if (is_read) return buf; int fd = open("/sys/kernel/btf/vmlinux", O_RDONLY); if (fd < 0) return NULL; unsigned long bytes_read = 0; for (;;) { ssize_t ret = read(fd, buf + bytes_read, VMLINUX_MAX_SUPPORT_SIZE - bytes_read); if (ret < 0 || bytes_read + ret == VMLINUX_MAX_SUPPORT_SIZE) return NULL; if (ret == 0) break; bytes_read += ret; } is_read = true; return buf; } static long syz_btf_id_by_name(volatile long a0) { char* target = (char*)a0; char* vmlinux = read_btf_vmlinux(); if (vmlinux == NULL) return -1; struct btf_header* btf_header = (struct btf_header*)vmlinux; if (btf_header->magic != BTF_MAGIC) return -1; char* btf_type_sec = vmlinux + btf_header->hdr_len + btf_header->type_off; char* btf_str_sec = vmlinux + btf_header->hdr_len + btf_header->str_off; unsigned int bytes_parsed = 0; long idx = 1; while (bytes_parsed < btf_header->type_len) { struct btf_type* btf_type = (struct btf_type*)(btf_type_sec + bytes_parsed); uint32_t kind = BTF_INFO_KIND(btf_type->info); uint32_t vlen = BTF_INFO_VLEN(btf_type->info); char* name = btf_str_sec + btf_type->name_off; if (strcmp(name, target) == 0) return idx; size_t skip; switch (kind) { case BTF_KIND_INT: skip = sizeof(uint32_t); break; case BTF_KIND_ENUM: skip = sizeof(struct btf_enum) * vlen; break; case BTF_KIND_ARRAY: skip = sizeof(struct btf_array); break; case BTF_KIND_STRUCT: case BTF_KIND_UNION: skip = sizeof(struct btf_member) * vlen; break; case BTF_KIND_FUNC_PROTO: skip = sizeof(struct btf_param) * vlen; break; case BTF_KIND_VAR: skip = sizeof(struct btf_var); break; case BTF_KIND_DATASEC: skip = sizeof(struct btf_var_secinfo) * vlen; break; default: skip = 0; } bytes_parsed += sizeof(struct btf_type) + skip; idx++; } return -1; } static long syz_memcpy_off(volatile long a0, volatile long a1, volatile long a2, volatile long a3, volatile long a4) { char* dest = (char*)a0; uint32_t dest_off = (uint32_t)a1; char* src = (char*)a2; uint32_t src_off = (uint32_t)a3; size_t n = (size_t)a4; return (long)memcpy(dest + dest_off, src + src_off, n); } static long syz_create_resource(volatile long val) { return val; } #define MAX_FDS 30 #define USB_MAX_IFACE_NUM 4 #define USB_MAX_EP_NUM 32 #define USB_MAX_FDS 6 struct usb_endpoint_index { struct usb_endpoint_descriptor desc; int handle; }; struct usb_iface_index { struct usb_interface_descriptor* iface; uint8_t bInterfaceNumber; uint8_t bAlternateSetting; uint8_t bInterfaceClass; struct usb_endpoint_index eps[USB_MAX_EP_NUM]; int eps_num; }; struct usb_device_index { struct usb_device_descriptor* dev; struct usb_config_descriptor* config; uint8_t bDeviceClass; uint8_t bMaxPower; int config_length; struct usb_iface_index ifaces[USB_MAX_IFACE_NUM]; int ifaces_num; int iface_cur; }; struct usb_info { int fd; struct usb_device_index index; }; static struct usb_info usb_devices[USB_MAX_FDS]; static struct usb_device_index* lookup_usb_index(int fd) { for (int i = 0; i < USB_MAX_FDS; i++) { if (__atomic_load_n(&usb_devices[i].fd, __ATOMIC_ACQUIRE) == fd) return &usb_devices[i].index; } return NULL; } static int usb_devices_num; static bool parse_usb_descriptor(const char* buffer, size_t length, struct usb_device_index* index) { if (length < sizeof(*index->dev) + sizeof(*index->config)) return false; memset(index, 0, sizeof(*index)); index->dev = (struct usb_device_descriptor*)buffer; index->config = (struct usb_config_descriptor*)(buffer + sizeof(*index->dev)); index->bDeviceClass = index->dev->bDeviceClass; index->bMaxPower = index->config->bMaxPower; index->config_length = length - sizeof(*index->dev); index->iface_cur = -1; size_t offset = 0; while (true) { if (offset + 1 >= length) break; uint8_t desc_length = buffer[offset]; uint8_t desc_type = buffer[offset + 1]; if (desc_length <= 2) break; if (offset + desc_length > length) break; if (desc_type == USB_DT_INTERFACE && index->ifaces_num < USB_MAX_IFACE_NUM) { struct usb_interface_descriptor* iface = (struct usb_interface_descriptor*)(buffer + offset); index->ifaces[index->ifaces_num].iface = iface; index->ifaces[index->ifaces_num].bInterfaceNumber = iface->bInterfaceNumber; index->ifaces[index->ifaces_num].bAlternateSetting = iface->bAlternateSetting; index->ifaces[index->ifaces_num].bInterfaceClass = iface->bInterfaceClass; index->ifaces_num++; } if (desc_type == USB_DT_ENDPOINT && index->ifaces_num > 0) { struct usb_iface_index* iface = &index->ifaces[index->ifaces_num - 1]; if (iface->eps_num < USB_MAX_EP_NUM) { memcpy(&iface->eps[iface->eps_num].desc, buffer + offset, sizeof(iface->eps[iface->eps_num].desc)); iface->eps_num++; } } offset += desc_length; } return true; } static struct usb_device_index* add_usb_index(int fd, const char* dev, size_t dev_len) { int i = __atomic_fetch_add(&usb_devices_num, 1, __ATOMIC_RELAXED); if (i >= USB_MAX_FDS) return NULL; if (!parse_usb_descriptor(dev, dev_len, &usb_devices[i].index)) return NULL; __atomic_store_n(&usb_devices[i].fd, fd, __ATOMIC_RELEASE); return &usb_devices[i].index; } struct vusb_connect_string_descriptor { uint32_t len; char* str; } __attribute__((packed)); struct vusb_connect_descriptors { uint32_t qual_len; char* qual; uint32_t bos_len; char* bos; uint32_t strs_len; struct vusb_connect_string_descriptor strs[0]; } __attribute__((packed)); static const char default_string[] = { 8, USB_DT_STRING, 's', 0, 'y', 0, 'z', 0 }; static const char default_lang_id[] = { 4, USB_DT_STRING, 0x09, 0x04 }; static bool lookup_connect_response_in(int fd, const struct vusb_connect_descriptors* descs, const struct usb_ctrlrequest* ctrl, struct usb_qualifier_descriptor* qual, char** response_data, uint32_t* response_length) { struct usb_device_index* index = lookup_usb_index(fd); uint8_t str_idx; if (!index) return false; switch (ctrl->bRequestType & USB_TYPE_MASK) { case USB_TYPE_STANDARD: switch (ctrl->bRequest) { case USB_REQ_GET_DESCRIPTOR: switch (ctrl->wValue >> 8) { case USB_DT_DEVICE: *response_data = (char*)index->dev; *response_length = sizeof(*index->dev); return true; case USB_DT_CONFIG: *response_data = (char*)index->config; *response_length = index->config_length; return true; case USB_DT_STRING: str_idx = (uint8_t)ctrl->wValue; if (descs && str_idx < descs->strs_len) { *response_data = descs->strs[str_idx].str; *response_length = descs->strs[str_idx].len; return true; } if (str_idx == 0) { *response_data = (char*)&default_lang_id[0]; *response_length = default_lang_id[0]; return true; } *response_data = (char*)&default_string[0]; *response_length = default_string[0]; return true; case USB_DT_BOS: *response_data = descs->bos; *response_length = descs->bos_len; return true; case USB_DT_DEVICE_QUALIFIER: if (!descs->qual) { qual->bLength = sizeof(*qual); qual->bDescriptorType = USB_DT_DEVICE_QUALIFIER; qual->bcdUSB = index->dev->bcdUSB; qual->bDeviceClass = index->dev->bDeviceClass; qual->bDeviceSubClass = index->dev->bDeviceSubClass; qual->bDeviceProtocol = index->dev->bDeviceProtocol; qual->bMaxPacketSize0 = index->dev->bMaxPacketSize0; qual->bNumConfigurations = index->dev->bNumConfigurations; qual->bRESERVED = 0; *response_data = (char*)qual; *response_length = sizeof(*qual); return true; } *response_data = descs->qual; *response_length = descs->qual_len; return true; default: break; } break; default: break; } break; default: break; } return false; } typedef bool (*lookup_connect_out_response_t)(int fd, const struct vusb_connect_descriptors* descs, const struct usb_ctrlrequest* ctrl, bool* done); static bool lookup_connect_response_out_generic(int fd, const struct vusb_connect_descriptors* descs, const struct usb_ctrlrequest* ctrl, bool* done) { switch (ctrl->bRequestType & USB_TYPE_MASK) { case USB_TYPE_STANDARD: switch (ctrl->bRequest) { case USB_REQ_SET_CONFIGURATION: *done = true; return true; default: break; } break; } return false; } #define ATH9K_FIRMWARE_DOWNLOAD 0x30 #define ATH9K_FIRMWARE_DOWNLOAD_COMP 0x31 static bool lookup_connect_response_out_ath9k(int fd, const struct vusb_connect_descriptors* descs, const struct usb_ctrlrequest* ctrl, bool* done) { switch (ctrl->bRequestType & USB_TYPE_MASK) { case USB_TYPE_STANDARD: switch (ctrl->bRequest) { case USB_REQ_SET_CONFIGURATION: return true; default: break; } break; case USB_TYPE_VENDOR: switch (ctrl->bRequest) { case ATH9K_FIRMWARE_DOWNLOAD: return true; case ATH9K_FIRMWARE_DOWNLOAD_COMP: *done = true; return true; default: break; } break; } return false; } struct vusb_descriptor { uint8_t req_type; uint8_t desc_type; uint32_t len; char data[0]; } __attribute__((packed)); struct vusb_descriptors { uint32_t len; struct vusb_descriptor* generic; struct vusb_descriptor* descs[0]; } __attribute__((packed)); struct vusb_response { uint8_t type; uint8_t req; uint32_t len; char data[0]; } __attribute__((packed)); struct vusb_responses { uint32_t len; struct vusb_response* generic; struct vusb_response* resps[0]; } __attribute__((packed)); static bool lookup_control_response(const struct vusb_descriptors* descs, const struct vusb_responses* resps, struct usb_ctrlrequest* ctrl, char** response_data, uint32_t* response_length) { int descs_num = 0; int resps_num = 0; if (descs) descs_num = (descs->len - offsetof(struct vusb_descriptors, descs)) / sizeof(descs->descs[0]); if (resps) resps_num = (resps->len - offsetof(struct vusb_responses, resps)) / sizeof(resps->resps[0]); uint8_t req = ctrl->bRequest; uint8_t req_type = ctrl->bRequestType & USB_TYPE_MASK; uint8_t desc_type = ctrl->wValue >> 8; if (req == USB_REQ_GET_DESCRIPTOR) { int i; for (i = 0; i < descs_num; i++) { struct vusb_descriptor* desc = descs->descs[i]; if (!desc) continue; if (desc->req_type == req_type && desc->desc_type == desc_type) { *response_length = desc->len; if (*response_length != 0) *response_data = &desc->data[0]; else *response_data = NULL; return true; } } if (descs && descs->generic) { *response_data = &descs->generic->data[0]; *response_length = descs->generic->len; return true; } } else { int i; for (i = 0; i < resps_num; i++) { struct vusb_response* resp = resps->resps[i]; if (!resp) continue; if (resp->type == req_type && resp->req == req) { *response_length = resp->len; if (*response_length != 0) *response_data = &resp->data[0]; else *response_data = NULL; return true; } } if (resps && resps->generic) { *response_data = &resps->generic->data[0]; *response_length = resps->generic->len; return true; } } return false; } #define UDC_NAME_LENGTH_MAX 128 struct usb_raw_init { __u8 driver_name[UDC_NAME_LENGTH_MAX]; __u8 device_name[UDC_NAME_LENGTH_MAX]; __u8 speed; }; enum usb_raw_event_type { USB_RAW_EVENT_INVALID = 0, USB_RAW_EVENT_CONNECT = 1, USB_RAW_EVENT_CONTROL = 2, }; struct usb_raw_event { __u32 type; __u32 length; __u8 data[0]; }; struct usb_raw_ep_io { __u16 ep; __u16 flags; __u32 length; __u8 data[0]; }; #define USB_RAW_EPS_NUM_MAX 30 #define USB_RAW_EP_NAME_MAX 16 #define USB_RAW_EP_ADDR_ANY 0xff struct usb_raw_ep_caps { __u32 type_control : 1; __u32 type_iso : 1; __u32 type_bulk : 1; __u32 type_int : 1; __u32 dir_in : 1; __u32 dir_out : 1; }; struct usb_raw_ep_limits { __u16 maxpacket_limit; __u16 max_streams; __u32 reserved; }; struct usb_raw_ep_info { __u8 name[USB_RAW_EP_NAME_MAX]; __u32 addr; struct usb_raw_ep_caps caps; struct usb_raw_ep_limits limits; }; struct usb_raw_eps_info { struct usb_raw_ep_info eps[USB_RAW_EPS_NUM_MAX]; }; #define USB_RAW_IOCTL_INIT _IOW('U', 0, struct usb_raw_init) #define USB_RAW_IOCTL_RUN _IO('U', 1) #define USB_RAW_IOCTL_EVENT_FETCH _IOR('U', 2, struct usb_raw_event) #define USB_RAW_IOCTL_EP0_WRITE _IOW('U', 3, struct usb_raw_ep_io) #define USB_RAW_IOCTL_EP0_READ _IOWR('U', 4, struct usb_raw_ep_io) #define USB_RAW_IOCTL_EP_ENABLE _IOW('U', 5, struct usb_endpoint_descriptor) #define USB_RAW_IOCTL_EP_DISABLE _IOW('U', 6, __u32) #define USB_RAW_IOCTL_EP_WRITE _IOW('U', 7, struct usb_raw_ep_io) #define USB_RAW_IOCTL_EP_READ _IOWR('U', 8, struct usb_raw_ep_io) #define USB_RAW_IOCTL_CONFIGURE _IO('U', 9) #define USB_RAW_IOCTL_VBUS_DRAW _IOW('U', 10, __u32) #define USB_RAW_IOCTL_EPS_INFO _IOR('U', 11, struct usb_raw_eps_info) #define USB_RAW_IOCTL_EP0_STALL _IO('U', 12) #define USB_RAW_IOCTL_EP_SET_HALT _IOW('U', 13, __u32) #define USB_RAW_IOCTL_EP_CLEAR_HALT _IOW('U', 14, __u32) #define USB_RAW_IOCTL_EP_SET_WEDGE _IOW('U', 15, __u32) static int usb_raw_open() { return open("/dev/raw-gadget", O_RDWR); } static int usb_raw_init(int fd, uint32_t speed, const char* driver, const char* device) { struct usb_raw_init arg; strncpy((char*)&arg.driver_name[0], driver, sizeof(arg.driver_name)); strncpy((char*)&arg.device_name[0], device, sizeof(arg.device_name)); arg.speed = speed; return ioctl(fd, USB_RAW_IOCTL_INIT, &arg); } static int usb_raw_run(int fd) { return ioctl(fd, USB_RAW_IOCTL_RUN, 0); } static int usb_raw_ep_write(int fd, struct usb_raw_ep_io* io) { return ioctl(fd, USB_RAW_IOCTL_EP_WRITE, io); } static int usb_raw_ep_read(int fd, struct usb_raw_ep_io* io) { return ioctl(fd, USB_RAW_IOCTL_EP_READ, io); } static int usb_raw_configure(int fd) { return ioctl(fd, USB_RAW_IOCTL_CONFIGURE, 0); } static int usb_raw_vbus_draw(int fd, uint32_t power) { return ioctl(fd, USB_RAW_IOCTL_VBUS_DRAW, power); } static int usb_raw_ep0_write(int fd, struct usb_raw_ep_io* io) { return ioctl(fd, USB_RAW_IOCTL_EP0_WRITE, io); } static int usb_raw_ep0_read(int fd, struct usb_raw_ep_io* io) { return ioctl(fd, USB_RAW_IOCTL_EP0_READ, io); } static int usb_raw_event_fetch(int fd, struct usb_raw_event* event) { return ioctl(fd, USB_RAW_IOCTL_EVENT_FETCH, event); } static int usb_raw_ep_enable(int fd, struct usb_endpoint_descriptor* desc) { return ioctl(fd, USB_RAW_IOCTL_EP_ENABLE, desc); } static int usb_raw_ep_disable(int fd, int ep) { return ioctl(fd, USB_RAW_IOCTL_EP_DISABLE, ep); } static int usb_raw_ep0_stall(int fd) { return ioctl(fd, USB_RAW_IOCTL_EP0_STALL, 0); } static int lookup_interface(int fd, uint8_t bInterfaceNumber, uint8_t bAlternateSetting) { struct usb_device_index* index = lookup_usb_index(fd); if (!index) return -1; for (int i = 0; i < index->ifaces_num; i++) { if (index->ifaces[i].bInterfaceNumber == bInterfaceNumber && index->ifaces[i].bAlternateSetting == bAlternateSetting) return i; } return -1; } static int lookup_endpoint(int fd, uint8_t bEndpointAddress) { struct usb_device_index* index = lookup_usb_index(fd); if (!index) return -1; if (index->iface_cur < 0) return -1; for (int ep = 0; ep < index->ifaces[index->iface_cur].eps_num; ep++) if (index->ifaces[index->iface_cur].eps[ep].desc.bEndpointAddress == bEndpointAddress) return index->ifaces[index->iface_cur].eps[ep].handle; return -1; } #define USB_MAX_PACKET_SIZE 4096 struct usb_raw_control_event { struct usb_raw_event inner; struct usb_ctrlrequest ctrl; char data[USB_MAX_PACKET_SIZE]; }; struct usb_raw_ep_io_data { struct usb_raw_ep_io inner; char data[USB_MAX_PACKET_SIZE]; }; static void set_interface(int fd, int n) { struct usb_device_index* index = lookup_usb_index(fd); if (!index) return; if (index->iface_cur >= 0 && index->iface_cur < index->ifaces_num) { for (int ep = 0; ep < index->ifaces[index->iface_cur].eps_num; ep++) { int rv = usb_raw_ep_disable(fd, index->ifaces[index->iface_cur].eps[ep].handle); if (rv < 0) { } else { } } } if (n >= 0 && n < index->ifaces_num) { for (int ep = 0; ep < index->ifaces[n].eps_num; ep++) { int rv = usb_raw_ep_enable(fd, &index->ifaces[n].eps[ep].desc); if (rv < 0) { } else { index->ifaces[n].eps[ep].handle = rv; } } index->iface_cur = n; } } static int configure_device(int fd) { struct usb_device_index* index = lookup_usb_index(fd); if (!index) return -1; int rv = usb_raw_vbus_draw(fd, index->bMaxPower); if (rv < 0) { return rv; } rv = usb_raw_configure(fd); if (rv < 0) { return rv; } set_interface(fd, 0); return 0; } static volatile long syz_usb_connect_impl(uint64_t speed, uint64_t dev_len, const char* dev, const struct vusb_connect_descriptors* descs, lookup_connect_out_response_t lookup_connect_response_out) { if (!dev) { return -1; } int fd = usb_raw_open(); if (fd < 0) { return fd; } if (fd >= MAX_FDS) { close(fd); return -1; } struct usb_device_index* index = add_usb_index(fd, dev, dev_len); if (!index) { return -1; } char device[32]; sprintf(&device[0], "dummy_udc.%llu", procid); int rv = usb_raw_init(fd, speed, "dummy_udc", &device[0]); if (rv < 0) { return rv; } rv = usb_raw_run(fd); if (rv < 0) { return rv; } bool done = false; while (!done) { struct usb_raw_control_event event; event.inner.type = 0; event.inner.length = sizeof(event.ctrl); rv = usb_raw_event_fetch(fd, (struct usb_raw_event*)&event); if (rv < 0) { return rv; } if (event.inner.type != USB_RAW_EVENT_CONTROL) continue; char* response_data = NULL; uint32_t response_length = 0; struct usb_qualifier_descriptor qual; if (event.ctrl.bRequestType & USB_DIR_IN) { if (!lookup_connect_response_in(fd, descs, &event.ctrl, &qual, &response_data, &response_length)) { usb_raw_ep0_stall(fd); continue; } } else { if (!lookup_connect_response_out(fd, descs, &event.ctrl, &done)) { usb_raw_ep0_stall(fd); continue; } response_data = NULL; response_length = event.ctrl.wLength; } if ((event.ctrl.bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD && event.ctrl.bRequest == USB_REQ_SET_CONFIGURATION) { rv = configure_device(fd); if (rv < 0) { return rv; } } struct usb_raw_ep_io_data response; response.inner.ep = 0; response.inner.flags = 0; if (response_length > sizeof(response.data)) response_length = 0; if (event.ctrl.wLength < response_length) response_length = event.ctrl.wLength; response.inner.length = response_length; if (response_data) memcpy(&response.data[0], response_data, response_length); else memset(&response.data[0], 0, response_length); if (event.ctrl.bRequestType & USB_DIR_IN) { rv = usb_raw_ep0_write(fd, (struct usb_raw_ep_io*)&response); } else { rv = usb_raw_ep0_read(fd, (struct usb_raw_ep_io*)&response); } if (rv < 0) { return rv; } } sleep_ms(200); return fd; } static volatile long syz_usb_connect(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { uint64_t speed = a0; uint64_t dev_len = a1; const char* dev = (const char*)a2; const struct vusb_connect_descriptors* descs = (const struct vusb_connect_descriptors*)a3; return syz_usb_connect_impl(speed, dev_len, dev, descs, &lookup_connect_response_out_generic); } static volatile long syz_usb_connect_ath9k(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { uint64_t speed = a0; uint64_t dev_len = a1; const char* dev = (const char*)a2; const struct vusb_connect_descriptors* descs = (const struct vusb_connect_descriptors*)a3; return syz_usb_connect_impl(speed, dev_len, dev, descs, &lookup_connect_response_out_ath9k); } static volatile long syz_usb_control_io(volatile long a0, volatile long a1, volatile long a2) { int fd = a0; const struct vusb_descriptors* descs = (const struct vusb_descriptors*)a1; const struct vusb_responses* resps = (const struct vusb_responses*)a2; struct usb_raw_control_event event; event.inner.type = 0; event.inner.length = USB_MAX_PACKET_SIZE; int rv = usb_raw_event_fetch(fd, (struct usb_raw_event*)&event); if (rv < 0) { return rv; } if (event.inner.type != USB_RAW_EVENT_CONTROL) { return -1; } char* response_data = NULL; uint32_t response_length = 0; if ((event.ctrl.bRequestType & USB_DIR_IN) && event.ctrl.wLength) { if (!lookup_control_response(descs, resps, &event.ctrl, &response_data, &response_length)) { usb_raw_ep0_stall(fd); return -1; } } else { if ((event.ctrl.bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD || event.ctrl.bRequest == USB_REQ_SET_INTERFACE) { int iface_num = event.ctrl.wIndex; int alt_set = event.ctrl.wValue; int iface_index = lookup_interface(fd, iface_num, alt_set); if (iface_index < 0) { } else { set_interface(fd, iface_index); } } response_length = event.ctrl.wLength; } struct usb_raw_ep_io_data response; response.inner.ep = 0; response.inner.flags = 0; if (response_length > sizeof(response.data)) response_length = 0; if (event.ctrl.wLength < response_length) response_length = event.ctrl.wLength; if ((event.ctrl.bRequestType & USB_DIR_IN) && !event.ctrl.wLength) { response_length = USB_MAX_PACKET_SIZE; } response.inner.length = response_length; if (response_data) memcpy(&response.data[0], response_data, response_length); else memset(&response.data[0], 0, response_length); if ((event.ctrl.bRequestType & USB_DIR_IN) && event.ctrl.wLength) { rv = usb_raw_ep0_write(fd, (struct usb_raw_ep_io*)&response); } else { rv = usb_raw_ep0_read(fd, (struct usb_raw_ep_io*)&response); } if (rv < 0) { return rv; } sleep_ms(200); return 0; } static volatile long syz_usb_ep_write(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { int fd = a0; uint8_t ep = a1; uint32_t len = a2; char* data = (char*)a3; int ep_handle = lookup_endpoint(fd, ep); if (ep_handle < 0) { return -1; } struct usb_raw_ep_io_data io_data; io_data.inner.ep = ep_handle; io_data.inner.flags = 0; if (len > sizeof(io_data.data)) len = sizeof(io_data.data); io_data.inner.length = len; memcpy(&io_data.data[0], data, len); int rv = usb_raw_ep_write(fd, (struct usb_raw_ep_io*)&io_data); if (rv < 0) { return rv; } sleep_ms(200); return 0; } static volatile long syz_usb_ep_read(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { int fd = a0; uint8_t ep = a1; uint32_t len = a2; char* data = (char*)a3; int ep_handle = lookup_endpoint(fd, ep); if (ep_handle < 0) { return -1; } struct usb_raw_ep_io_data io_data; io_data.inner.ep = ep_handle; io_data.inner.flags = 0; if (len > sizeof(io_data.data)) len = sizeof(io_data.data); io_data.inner.length = len; int rv = usb_raw_ep_read(fd, (struct usb_raw_ep_io*)&io_data); if (rv < 0) { return rv; } memcpy(&data[0], &io_data.data[0], io_data.inner.length); sleep_ms(200); return 0; } static volatile long syz_usb_disconnect(volatile long a0) { int fd = a0; int rv = close(fd); sleep_ms(200); return rv; } static long syz_open_dev(volatile long a0, volatile long a1, volatile long a2) { if (a0 == 0xc || a0 == 0xb) { char buf[128]; sprintf(buf, "/dev/%s/%d:%d", a0 == 0xc ? "char" : "block", (uint8_t)a1, (uint8_t)a2); return open(buf, O_RDWR, 0); } else { unsigned long nb = a1; char buf[1024]; char* hash; strncpy(buf, (char*)a0, sizeof(buf) - 1); buf[sizeof(buf) - 1] = 0; while ((hash = strchr(buf, '#'))) { *hash = '0' + (char)(nb % 10); nb /= 10; } return open(buf, a2 & ~O_CREAT, 0); } } static long syz_open_procfs(volatile long a0, volatile long a1) { char buf[128]; memset(buf, 0, sizeof(buf)); if (a0 == 0) { snprintf(buf, sizeof(buf), "/proc/self/%s", (char*)a1); } else if (a0 == -1) { snprintf(buf, sizeof(buf), "/proc/thread-self/%s", (char*)a1); } else { snprintf(buf, sizeof(buf), "/proc/self/task/%d/%s", (int)a0, (char*)a1); } int fd = open(buf, O_RDWR); if (fd == -1) fd = open(buf, O_RDONLY); return fd; } static long syz_open_pts(volatile long a0, volatile long a1) { int ptyno = 0; if (ioctl(a0, TIOCGPTN, &ptyno)) return -1; char buf[128]; sprintf(buf, "/dev/pts/%d", ptyno); return open(buf, a1, 0); } static long syz_init_net_socket(volatile long domain, volatile long type, volatile long proto) { int netns = open("/proc/self/ns/net", O_RDONLY); if (netns == -1) return netns; if (setns(kInitNetNsFd, 0)) return -1; int sock = syscall(__NR_socket, domain, type, proto); int err = errno; if (setns(netns, 0)) { exit(1); } close(netns); errno = err; return sock; } static long syz_socket_connect_nvme_tcp() { struct sockaddr_in nvme_local_address; int netns = open("/proc/self/ns/net", O_RDONLY); if (netns == -1) return netns; if (setns(kInitNetNsFd, 0)) return -1; int sock = syscall(__NR_socket, AF_INET, SOCK_STREAM, 0x0); int err = errno; if (setns(netns, 0)) { exit(1); } close(netns); errno = err; nvme_local_address.sin_family = AF_INET; nvme_local_address.sin_port = htobe16(4420); nvme_local_address.sin_addr.s_addr = htobe32(0x7f000001); err = syscall(__NR_connect, sock, &nvme_local_address, sizeof(nvme_local_address)); if (err != 0) { close(sock); return -1; } return sock; } static long syz_genetlink_get_family_id(volatile long name, volatile long sock_arg) { int fd = sock_arg; if (fd < 0) { fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC); if (fd == -1) { return -1; } } struct nlmsg nlmsg_tmp; int ret = netlink_query_family_id(&nlmsg_tmp, fd, (char*)name, false); if ((int)sock_arg < 0) close(fd); if (ret < 0) { return -1; } return ret; } //% This code is derived from puff.{c,h}, found in the zlib development. The //% original files come with the following copyright notice: //% Copyright (C) 2002-2013 Mark Adler, all rights reserved //% version 2.3, 21 Jan 2013 //% This software is provided 'as-is', without any express or implied //% warranty. In no event will the author be held liable for any damages //% arising from the use of this software. //% Permission is granted to anyone to use this software for any purpose, //% including commercial applications, and to alter it and redistribute it //% freely, subject to the following restrictions: //% 1. The origin of this software must not be misrepresented; you must not //% claim that you wrote the original software. If you use this software //% in a product, an acknowledgment in the product documentation would be //% appreciated but is not required. //% 2. Altered source versions must be plainly marked as such, and must not be //% misrepresented as being the original software. //% 3. This notice may not be removed or altered from any source distribution. //% Mark Adler madler@alumni.caltech.edu //% BEGIN CODE DERIVED FROM puff.{c,h} #define MAXBITS 15 #define MAXLCODES 286 #define MAXDCODES 30 #define MAXCODES (MAXLCODES + MAXDCODES) #define FIXLCODES 288 struct puff_state { unsigned char* out; unsigned long outlen; unsigned long outcnt; const unsigned char* in; unsigned long inlen; unsigned long incnt; int bitbuf; int bitcnt; jmp_buf env; }; static int puff_bits(struct puff_state* s, int need) { long val = s->bitbuf; while (s->bitcnt < need) { if (s->incnt == s->inlen) longjmp(s->env, 1); val |= (long)(s->in[s->incnt++]) << s->bitcnt; s->bitcnt += 8; } s->bitbuf = (int)(val >> need); s->bitcnt -= need; return (int)(val & ((1L << need) - 1)); } static int puff_stored(struct puff_state* s) { s->bitbuf = 0; s->bitcnt = 0; if (s->incnt + 4 > s->inlen) return 2; unsigned len = s->in[s->incnt++]; len |= s->in[s->incnt++] << 8; if (s->in[s->incnt++] != (~len & 0xff) || s->in[s->incnt++] != ((~len >> 8) & 0xff)) return -2; if (s->incnt + len > s->inlen) return 2; if (s->outcnt + len > s->outlen) return 1; for (; len--; s->outcnt++, s->incnt++) { if (s->in[s->incnt]) s->out[s->outcnt] = s->in[s->incnt]; } return 0; } struct puff_huffman { short* count; short* symbol; }; static int puff_decode(struct puff_state* s, const struct puff_huffman* h) { int first = 0; int index = 0; int bitbuf = s->bitbuf; int left = s->bitcnt; int code = first = index = 0; int len = 1; short* next = h->count + 1; while (1) { while (left--) { code |= bitbuf & 1; bitbuf >>= 1; int count = *next++; if (code - count < first) { s->bitbuf = bitbuf; s->bitcnt = (s->bitcnt - len) & 7; return h->symbol[index + (code - first)]; } index += count; first += count; first <<= 1; code <<= 1; len++; } left = (MAXBITS + 1) - len; if (left == 0) break; if (s->incnt == s->inlen) longjmp(s->env, 1); bitbuf = s->in[s->incnt++]; if (left > 8) left = 8; } return -10; } static int puff_construct(struct puff_huffman* h, const short* length, int n) { int len; for (len = 0; len <= MAXBITS; len++) h->count[len] = 0; int symbol; for (symbol = 0; symbol < n; symbol++) (h->count[length[symbol]])++; if (h->count[0] == n) return 0; int left = 1; for (len = 1; len <= MAXBITS; len++) { left <<= 1; left -= h->count[len]; if (left < 0) return left; } short offs[MAXBITS + 1]; offs[1] = 0; for (len = 1; len < MAXBITS; len++) offs[len + 1] = offs[len] + h->count[len]; for (symbol = 0; symbol < n; symbol++) if (length[symbol] != 0) h->symbol[offs[length[symbol]]++] = symbol; return left; } static int puff_codes(struct puff_state* s, const struct puff_huffman* lencode, const struct puff_huffman* distcode) { static const short lens[29] = { 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31, 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258}; static const short lext[29] = { 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0}; static const short dists[30] = { 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193, 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145, 8193, 12289, 16385, 24577}; static const short dext[30] = { 0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13}; int symbol; do { symbol = puff_decode(s, lencode); if (symbol < 0) return symbol; if (symbol < 256) { if (s->outcnt == s->outlen) return 1; if (symbol) s->out[s->outcnt] = symbol; s->outcnt++; } else if (symbol > 256) { symbol -= 257; if (symbol >= 29) return -10; int len = lens[symbol] + puff_bits(s, lext[symbol]); symbol = puff_decode(s, distcode); if (symbol < 0) return symbol; unsigned dist = dists[symbol] + puff_bits(s, dext[symbol]); if (dist > s->outcnt) return -11; if (s->outcnt + len > s->outlen) return 1; while (len--) { if (dist <= s->outcnt && s->out[s->outcnt - dist]) s->out[s->outcnt] = s->out[s->outcnt - dist]; s->outcnt++; } } } while (symbol != 256); return 0; } static int puff_fixed(struct puff_state* s) { static int virgin = 1; static short lencnt[MAXBITS + 1], lensym[FIXLCODES]; static short distcnt[MAXBITS + 1], distsym[MAXDCODES]; static struct puff_huffman lencode, distcode; if (virgin) { lencode.count = lencnt; lencode.symbol = lensym; distcode.count = distcnt; distcode.symbol = distsym; short lengths[FIXLCODES]; int symbol; for (symbol = 0; symbol < 144; symbol++) lengths[symbol] = 8; for (; symbol < 256; symbol++) lengths[symbol] = 9; for (; symbol < 280; symbol++) lengths[symbol] = 7; for (; symbol < FIXLCODES; symbol++) lengths[symbol] = 8; puff_construct(&lencode, lengths, FIXLCODES); for (symbol = 0; symbol < MAXDCODES; symbol++) lengths[symbol] = 5; puff_construct(&distcode, lengths, MAXDCODES); virgin = 0; } return puff_codes(s, &lencode, &distcode); } static int puff_dynamic(struct puff_state* s) { static const short order[19] = {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15}; int nlen = puff_bits(s, 5) + 257; int ndist = puff_bits(s, 5) + 1; int ncode = puff_bits(s, 4) + 4; if (nlen > MAXLCODES || ndist > MAXDCODES) return -3; short lengths[MAXCODES]; int index; for (index = 0; index < ncode; index++) lengths[order[index]] = puff_bits(s, 3); for (; index < 19; index++) lengths[order[index]] = 0; short lencnt[MAXBITS + 1], lensym[MAXLCODES]; struct puff_huffman lencode = {lencnt, lensym}; int err = puff_construct(&lencode, lengths, 19); if (err != 0) return -4; index = 0; while (index < nlen + ndist) { int symbol; int len; symbol = puff_decode(s, &lencode); if (symbol < 0) return symbol; if (symbol < 16) lengths[index++] = symbol; else { len = 0; if (symbol == 16) { if (index == 0) return -5; len = lengths[index - 1]; symbol = 3 + puff_bits(s, 2); } else if (symbol == 17) symbol = 3 + puff_bits(s, 3); else symbol = 11 + puff_bits(s, 7); if (index + symbol > nlen + ndist) return -6; while (symbol--) lengths[index++] = len; } } if (lengths[256] == 0) return -9; err = puff_construct(&lencode, lengths, nlen); if (err && (err < 0 || nlen != lencode.count[0] + lencode.count[1])) return -7; short distcnt[MAXBITS + 1], distsym[MAXDCODES]; struct puff_huffman distcode = {distcnt, distsym}; err = puff_construct(&distcode, lengths + nlen, ndist); if (err && (err < 0 || ndist != distcode.count[0] + distcode.count[1])) return -8; return puff_codes(s, &lencode, &distcode); } static int puff( unsigned char* dest, unsigned long* destlen, const unsigned char* source, unsigned long sourcelen) { struct puff_state s = { .out = dest, .outlen = *destlen, .outcnt = 0, .in = source, .inlen = sourcelen, .incnt = 0, .bitbuf = 0, .bitcnt = 0, }; int err; if (setjmp(s.env) != 0) err = 2; else { int last; do { last = puff_bits(&s, 1); int type = puff_bits(&s, 2); err = type == 0 ? puff_stored(&s) : (type == 1 ? puff_fixed(&s) : (type == 2 ? puff_dynamic(&s) : -1)); if (err != 0) break; } while (!last); } *destlen = s.outcnt; return err; } //% END CODE DERIVED FROM puff.{c,h} #define ZLIB_HEADER_WIDTH 2 static int puff_zlib_to_file(const unsigned char* source, unsigned long sourcelen, int dest_fd) { if (sourcelen < ZLIB_HEADER_WIDTH) return 0; source += ZLIB_HEADER_WIDTH; sourcelen -= ZLIB_HEADER_WIDTH; const unsigned long max_destlen = 132 << 20; void* ret = mmap(0, max_destlen, PROT_WRITE | PROT_READ, MAP_PRIVATE | MAP_ANON, -1, 0); if (ret == MAP_FAILED) return -1; unsigned char* dest = (unsigned char*)ret; unsigned long destlen = max_destlen; int err = puff(dest, &destlen, source, sourcelen); if (err) { munmap(dest, max_destlen); errno = -err; return -1; } if (write(dest_fd, dest, destlen) != (ssize_t)destlen) { munmap(dest, max_destlen); return -1; } return munmap(dest, max_destlen); } static int setup_loop_device(unsigned char* data, unsigned long size, const char* loopname, int* loopfd_p) { int err = 0, loopfd = -1; int memfd = syscall(__NR_memfd_create, "syzkaller", 0); if (memfd == -1) { err = errno; goto error; } if (puff_zlib_to_file(data, size, memfd)) { err = errno; goto error_close_memfd; } loopfd = open(loopname, O_RDWR); if (loopfd == -1) { err = errno; goto error_close_memfd; } if (ioctl(loopfd, LOOP_SET_FD, memfd)) { if (errno != EBUSY) { err = errno; goto error_close_loop; } ioctl(loopfd, LOOP_CLR_FD, 0); usleep(1000); if (ioctl(loopfd, LOOP_SET_FD, memfd)) { err = errno; goto error_close_loop; } } close(memfd); *loopfd_p = loopfd; return 0; error_close_loop: close(loopfd); error_close_memfd: close(memfd); error: errno = err; return -1; } static void reset_loop_device(const char* loopname) { int loopfd = open(loopname, O_RDWR); if (loopfd == -1) { return; } if (ioctl(loopfd, LOOP_CLR_FD, 0)) { } close(loopfd); } static long syz_mount_image( volatile long fsarg, volatile long dir, volatile long flags, volatile long optsarg, volatile long change_dir, volatile unsigned long size, volatile long image) { unsigned char* data = (unsigned char*)image; int res = -1, err = 0, need_loop_device = !!size; char* mount_opts = (char*)optsarg; char* target = (char*)dir; char* fs = (char*)fsarg; char* source = NULL; char loopname[64]; if (need_loop_device) { int loopfd; memset(loopname, 0, sizeof(loopname)); snprintf(loopname, sizeof(loopname), "/dev/loop%llu", procid); if (setup_loop_device(data, size, loopname, &loopfd) == -1) return -1; close(loopfd); source = loopname; } mkdir(target, 0777); char opts[256]; memset(opts, 0, sizeof(opts)); if (strlen(mount_opts) > (sizeof(opts) - 32)) { } strncpy(opts, mount_opts, sizeof(opts) - 32); if (strcmp(fs, "iso9660") == 0) { flags |= MS_RDONLY; } else if (strncmp(fs, "ext", 3) == 0) { bool has_remount_ro = false; char* remount_ro_start = strstr(opts, "errors=remount-ro"); if (remount_ro_start != NULL) { char after = *(remount_ro_start + strlen("errors=remount-ro")); char before = remount_ro_start == opts ? '\0' : *(remount_ro_start - 1); has_remount_ro = ((before == '\0' || before == ',') && (after == '\0' || after == ',')); } if (strstr(opts, "errors=panic") || !has_remount_ro) strcat(opts, ",errors=continue"); } else if (strcmp(fs, "xfs") == 0) { strcat(opts, ",nouuid"); } else if (strncmp(fs, "gfs2", 4) == 0 && (strstr(opts, "errors=panic") || strstr(opts, "debug"))) { strcat(opts, ",errors=withdraw"); } res = mount(source, target, fs, flags, opts); if (res == -1) { err = errno; goto error_clear_loop; } res = open(target, O_RDONLY | O_DIRECTORY); if (res == -1) { err = errno; goto error_clear_loop; } if (change_dir) { res = chdir(target); if (res == -1) { err = errno; } } error_clear_loop: if (need_loop_device) reset_loop_device(loopname); errno = err; return res; } #define noinline __attribute__((noinline)) #define __no_stack_protector #define __addrspace_guest #define __optnone #define GUEST_CODE __attribute__((section("guest"))) __no_stack_protector __addrspace_guest extern char *__start_guest, *__stop_guest; #define X86_ADDR_TEXT 0x0000 #define X86_ADDR_PD_IOAPIC 0x0000 #define X86_ADDR_GDT 0x1000 #define X86_ADDR_LDT 0x1800 #define X86_ADDR_PML4 0x2000 #define X86_ADDR_PDP 0x3000 #define X86_ADDR_PD 0x4000 #define X86_ADDR_STACK0 0x0f80 #define X86_ADDR_VAR_HLT 0x2800 #define X86_ADDR_VAR_SYSRET 0x2808 #define X86_ADDR_VAR_SYSEXIT 0x2810 #define X86_ADDR_VAR_IDT 0x3800 #define X86_ADDR_VAR_TSS64 0x3a00 #define X86_ADDR_VAR_TSS64_CPL3 0x3c00 #define X86_ADDR_VAR_TSS16 0x3d00 #define X86_ADDR_VAR_TSS16_2 0x3e00 #define X86_ADDR_VAR_TSS16_CPL3 0x3f00 #define X86_ADDR_VAR_TSS32 0x4800 #define X86_ADDR_VAR_TSS32_2 0x4a00 #define X86_ADDR_VAR_TSS32_CPL3 0x4c00 #define X86_ADDR_VAR_TSS32_VM86 0x4e00 #define X86_ADDR_VAR_VMXON_PTR 0x5f00 #define X86_ADDR_VAR_VMCS_PTR 0x5f08 #define X86_ADDR_VAR_VMEXIT_PTR 0x5f10 #define X86_ADDR_VAR_VMWRITE_FLD 0x5f18 #define X86_ADDR_VAR_VMWRITE_VAL 0x5f20 #define X86_ADDR_VAR_VMXON 0x6000 #define X86_ADDR_VAR_VMCS 0x7000 #define X86_ADDR_VAR_VMEXIT_CODE 0x9000 #define X86_ADDR_VAR_USER_CODE 0x9100 #define X86_ADDR_VAR_USER_CODE2 0x9120 #define X86_SYZOS_ADDR_ZERO 0x0 #define X86_SYZOS_ADDR_GDT 0x1000 #define X86_SYZOS_ADDR_PML4 0x2000 #define X86_SYZOS_ADDR_PDP 0x3000 #define X86_SYZOS_ADDR_PT_POOL 0x5000 #define X86_SYZOS_ADDR_VAR_IDT 0x25000 #define X86_SYZOS_ADDR_VAR_TSS 0x26000 #define X86_SYZOS_ADDR_SMRAM 0x30000 #define X86_SYZOS_ADDR_EXIT 0x40000 #define X86_SYZOS_ADDR_UEXIT (X86_SYZOS_ADDR_EXIT + 256) #define X86_SYZOS_ADDR_DIRTY_PAGES 0x41000 #define X86_SYZOS_ADDR_USER_CODE 0x50000 #define SYZOS_ADDR_EXECUTOR_CODE 0x54000 #define X86_SYZOS_ADDR_SCRATCH_CODE 0x58000 #define X86_SYZOS_ADDR_STACK_BOTTOM 0x60000 #define X86_SYZOS_ADDR_STACK0 0x60f80 #define X86_SYZOS_PER_VCPU_REGIONS_BASE 0x70000 #define X86_SYZOS_L1_VCPU_REGION_SIZE 0x40000 #define X86_SYZOS_L1_VCPU_OFFSET_VM_ARCH_SPECIFIC 0x0000 #define X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA 0x1000 #define X86_SYZOS_L2_VM_REGION_SIZE 0x8000 #define X86_SYZOS_L2_VM_OFFSET_VMCS_VMCB 0x0000 #define X86_SYZOS_L2_VM_OFFSET_VM_STACK 0x1000 #define X86_SYZOS_L2_VM_OFFSET_VM_CODE 0x2000 #define X86_SYZOS_L2_VM_OFFSET_VM_PGTABLE 0x3000 #define X86_SYZOS_L2_VM_OFFSET_MSR_BITMAP 0x7000 #define X86_SYZOS_ADDR_UNUSED 0x200000 #define X86_SYZOS_ADDR_IOAPIC 0xfec00000 #define X86_SYZOS_ADDR_VMCS_VMCB(cpu,vm) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA + (vm) * X86_SYZOS_L2_VM_REGION_SIZE + X86_SYZOS_L2_VM_OFFSET_VMCS_VMCB) #define X86_SYZOS_ADDR_VM_CODE(cpu,vm) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA + (vm) * X86_SYZOS_L2_VM_REGION_SIZE + X86_SYZOS_L2_VM_OFFSET_VM_CODE) #define X86_SYZOS_ADDR_VM_STACK(cpu,vm) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA + (vm) * X86_SYZOS_L2_VM_REGION_SIZE + X86_SYZOS_L2_VM_OFFSET_VM_STACK) #define X86_SYZOS_ADDR_VM_PGTABLE(cpu,vm) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA + (vm) * X86_SYZOS_L2_VM_REGION_SIZE + X86_SYZOS_L2_VM_OFFSET_VM_PGTABLE) #define X86_SYZOS_ADDR_MSR_BITMAP(cpu,vm) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA + (vm) * X86_SYZOS_L2_VM_REGION_SIZE + X86_SYZOS_L2_VM_OFFSET_MSR_BITMAP) #define X86_SYZOS_ADDR_VM_ARCH_SPECIFIC(cpu) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_VM_ARCH_SPECIFIC) #define X86_SYZOS_SEL_CODE 0x8 #define X86_SYZOS_SEL_DATA 0x10 #define X86_SYZOS_SEL_TSS64 0x18 #define X86_CR0_PE 1ULL #define X86_CR0_MP (1ULL << 1) #define X86_CR0_EM (1ULL << 2) #define X86_CR0_TS (1ULL << 3) #define X86_CR0_ET (1ULL << 4) #define X86_CR0_NE (1ULL << 5) #define X86_CR0_WP (1ULL << 16) #define X86_CR0_AM (1ULL << 18) #define X86_CR0_NW (1ULL << 29) #define X86_CR0_CD (1ULL << 30) #define X86_CR0_PG (1ULL << 31) #define X86_CR4_VME 1ULL #define X86_CR4_PVI (1ULL << 1) #define X86_CR4_TSD (1ULL << 2) #define X86_CR4_DE (1ULL << 3) #define X86_CR4_PSE (1ULL << 4) #define X86_CR4_PAE (1ULL << 5) #define X86_CR4_MCE (1ULL << 6) #define X86_CR4_PGE (1ULL << 7) #define X86_CR4_PCE (1ULL << 8) #define X86_CR4_OSFXSR (1ULL << 8) #define X86_CR4_OSXMMEXCPT (1ULL << 10) #define X86_CR4_UMIP (1ULL << 11) #define X86_CR4_VMXE (1ULL << 13) #define X86_CR4_SMXE (1ULL << 14) #define X86_CR4_FSGSBASE (1ULL << 16) #define X86_CR4_PCIDE (1ULL << 17) #define X86_CR4_OSXSAVE (1ULL << 18) #define X86_CR4_SMEP (1ULL << 20) #define X86_CR4_SMAP (1ULL << 21) #define X86_CR4_PKE (1ULL << 22) #define X86_EFER_SCE 1ULL #define X86_EFER_LME (1ULL << 8) #define X86_EFER_LMA (1ULL << 10) #define X86_EFER_NXE (1ULL << 11) #define X86_EFER_SVME (1ULL << 12) #define X86_EFER_LMSLE (1ULL << 13) #define X86_EFER_FFXSR (1ULL << 14) #define X86_EFER_TCE (1ULL << 15) #define X86_PDE32_PRESENT 1UL #define X86_PDE32_RW (1UL << 1) #define X86_PDE32_USER (1UL << 2) #define X86_PDE32_PS (1UL << 7) #define X86_PDE64_PRESENT 1 #define X86_PDE64_RW (1ULL << 1) #define X86_PDE64_USER (1ULL << 2) #define X86_PDE64_ACCESSED (1ULL << 5) #define X86_PDE64_DIRTY (1ULL << 6) #define X86_PDE64_PS (1ULL << 7) #define X86_PDE64_G (1ULL << 8) #define EPT_MEMTYPE_WB (6ULL << 3) #define EPT_ACCESSED (1ULL << 8) #define EPT_DIRTY (1ULL << 9) #define X86_SEL_LDT (1 << 3) #define X86_SEL_CS16 (2 << 3) #define X86_SEL_DS16 (3 << 3) #define X86_SEL_CS16_CPL3 ((4 << 3) + 3) #define X86_SEL_DS16_CPL3 ((5 << 3) + 3) #define X86_SEL_CS32 (6 << 3) #define X86_SEL_DS32 (7 << 3) #define X86_SEL_CS32_CPL3 ((8 << 3) + 3) #define X86_SEL_DS32_CPL3 ((9 << 3) + 3) #define X86_SEL_CS64 (10 << 3) #define X86_SEL_DS64 (11 << 3) #define X86_SEL_CS64_CPL3 ((12 << 3) + 3) #define X86_SEL_DS64_CPL3 ((13 << 3) + 3) #define X86_SEL_CGATE16 (14 << 3) #define X86_SEL_TGATE16 (15 << 3) #define X86_SEL_CGATE32 (16 << 3) #define X86_SEL_TGATE32 (17 << 3) #define X86_SEL_CGATE64 (18 << 3) #define X86_SEL_CGATE64_HI (19 << 3) #define X86_SEL_TSS16 (20 << 3) #define X86_SEL_TSS16_2 (21 << 3) #define X86_SEL_TSS16_CPL3 ((22 << 3) + 3) #define X86_SEL_TSS32 (23 << 3) #define X86_SEL_TSS32_2 (24 << 3) #define X86_SEL_TSS32_CPL3 ((25 << 3) + 3) #define X86_SEL_TSS32_VM86 (26 << 3) #define X86_SEL_TSS64 (27 << 3) #define X86_SEL_TSS64_HI (28 << 3) #define X86_SEL_TSS64_CPL3 ((29 << 3) + 3) #define X86_SEL_TSS64_CPL3_HI (30 << 3) #define X86_MSR_IA32_FEATURE_CONTROL 0x3a #define X86_MSR_IA32_VMX_BASIC 0x480 #define X86_MSR_IA32_SMBASE 0x9e #define X86_MSR_IA32_SYSENTER_CS 0x174 #define X86_MSR_IA32_SYSENTER_ESP 0x175 #define X86_MSR_IA32_SYSENTER_EIP 0x176 #define X86_MSR_IA32_CR_PAT 0x277 #define X86_MSR_CORE_PERF_GLOBAL_CTRL 0x38f #define X86_MSR_IA32_VMX_TRUE_PINBASED_CTLS 0x48d #define X86_MSR_IA32_VMX_TRUE_PROCBASED_CTLS 0x48e #define X86_MSR_IA32_VMX_TRUE_EXIT_CTLS 0x48f #define X86_MSR_IA32_VMX_TRUE_ENTRY_CTLS 0x490 #define X86_MSR_IA32_EFER 0xc0000080 #define X86_MSR_IA32_STAR 0xC0000081 #define X86_MSR_IA32_LSTAR 0xC0000082 #define X86_MSR_FS_BASE 0xc0000100 #define X86_MSR_GS_BASE 0xc0000101 #define X86_MSR_VM_HSAVE_PA 0xc0010117 #define X86_MSR_IA32_VMX_PROCBASED_CTLS2 0x48B #define RFLAGS_1_BIT (1ULL << 1) #define CPU_BASED_HLT_EXITING (1U << 7) #define CPU_BASED_RDTSC_EXITING (1U << 12) #define AR_TSS_AVAILABLE 0x0089 #define SVM_ATTR_LDTR_UNUSABLE 0x0000 #define VMX_AR_TSS_BUSY 0x008b #define VMX_AR_TSS_AVAILABLE 0x0089 #define VMX_AR_LDTR_UNUSABLE 0x10000 #define VM_ENTRY_IA32E_MODE (1U << 9) #define SECONDARY_EXEC_ENABLE_EPT (1U << 1) #define SECONDARY_EXEC_ENABLE_RDTSCP (1U << 3) #define VM_EXIT_HOST_ADDR_SPACE_SIZE (1U << 9) #define CPU_BASED_ACTIVATE_SECONDARY_CONTROLS (1U << 31) #define VMX_ACCESS_RIGHTS_P (1 << 7) #define VMX_ACCESS_RIGHTS_S (1 << 4) #define VMX_ACCESS_RIGHTS_TYPE_A (1 << 0) #define VMX_ACCESS_RIGHTS_TYPE_RW (1 << 1) #define VMX_ACCESS_RIGHTS_TYPE_E (1 << 3) #define VMX_ACCESS_RIGHTS_G (1 << 15) #define VMX_ACCESS_RIGHTS_DB (1 << 14) #define VMX_ACCESS_RIGHTS_L (1 << 13) #define VMX_AR_64BIT_DATA_STACK (VMX_ACCESS_RIGHTS_P | VMX_ACCESS_RIGHTS_S | VMX_ACCESS_RIGHTS_TYPE_RW | VMX_ACCESS_RIGHTS_TYPE_A | VMX_ACCESS_RIGHTS_G | VMX_ACCESS_RIGHTS_DB) #define VMX_AR_64BIT_CODE (VMX_ACCESS_RIGHTS_P | VMX_ACCESS_RIGHTS_S | VMX_ACCESS_RIGHTS_TYPE_E | VMX_ACCESS_RIGHTS_TYPE_RW | VMX_ACCESS_RIGHTS_TYPE_A | VMX_ACCESS_RIGHTS_G | VMX_ACCESS_RIGHTS_L) #define VMCS_VIRTUAL_PROCESSOR_ID 0x00000000 #define VMCS_POSTED_INTR_NV 0x00000002 #define VMCS_MSR_BITMAP 0x00002004 #define VMCS_VMREAD_BITMAP 0x00002006 #define VMCS_VMWRITE_BITMAP 0x00002008 #define VMCS_EPT_POINTER 0x0000201a #define VMCS_LINK_POINTER 0x00002800 #define VMCS_PIN_BASED_VM_EXEC_CONTROL 0x00004000 #define VMCS_CPU_BASED_VM_EXEC_CONTROL 0x00004002 #define VMCS_EXCEPTION_BITMAP 0x00004004 #define VMCS_PAGE_FAULT_ERROR_CODE_MASK 0x00004006 #define VMCS_PAGE_FAULT_ERROR_CODE_MATCH 0x00004008 #define VMCS_CR3_TARGET_COUNT 0x0000400a #define VMCS_VM_EXIT_CONTROLS 0x0000400c #define VMCS_VM_EXIT_MSR_STORE_COUNT 0x0000400e #define VMCS_VM_EXIT_MSR_LOAD_COUNT 0x00004010 #define VMCS_VM_ENTRY_CONTROLS 0x00004012 #define VMCS_VM_ENTRY_MSR_LOAD_COUNT 0x00004014 #define VMCS_VM_ENTRY_INTR_INFO_FIELD 0x00004016 #define VMCS_TPR_THRESHOLD 0x0000401c #define VMCS_SECONDARY_VM_EXEC_CONTROL 0x0000401e #define VMCS_VM_INSTRUCTION_ERROR 0x00004400 #define VMCS_VM_EXIT_REASON 0x00004402 #define VMCS_VMX_PREEMPTION_TIMER_VALUE 0x0000482e #define VMCS_CR0_GUEST_HOST_MASK 0x00006000 #define VMCS_CR4_GUEST_HOST_MASK 0x00006002 #define VMCS_CR0_READ_SHADOW 0x00006004 #define VMCS_CR4_READ_SHADOW 0x00006006 #define VMCS_HOST_ES_SELECTOR 0x00000c00 #define VMCS_HOST_CS_SELECTOR 0x00000c02 #define VMCS_HOST_SS_SELECTOR 0x00000c04 #define VMCS_HOST_DS_SELECTOR 0x00000c06 #define VMCS_HOST_FS_SELECTOR 0x00000c08 #define VMCS_HOST_GS_SELECTOR 0x00000c0a #define VMCS_HOST_TR_SELECTOR 0x00000c0c #define VMCS_HOST_IA32_PAT 0x00002c00 #define VMCS_HOST_IA32_EFER 0x00002c02 #define VMCS_HOST_IA32_PERF_GLOBAL_CTRL 0x00002c04 #define VMCS_HOST_IA32_SYSENTER_CS 0x00004c00 #define VMCS_HOST_CR0 0x00006c00 #define VMCS_HOST_CR3 0x00006c02 #define VMCS_HOST_CR4 0x00006c04 #define VMCS_HOST_FS_BASE 0x00006c06 #define VMCS_HOST_GS_BASE 0x00006c08 #define VMCS_HOST_TR_BASE 0x00006c0a #define VMCS_HOST_GDTR_BASE 0x00006c0c #define VMCS_HOST_IDTR_BASE 0x00006c0e #define VMCS_HOST_IA32_SYSENTER_ESP 0x00006c10 #define VMCS_HOST_IA32_SYSENTER_EIP 0x00006c12 #define VMCS_HOST_RSP 0x00006c14 #define VMCS_HOST_RIP 0x00006c16 #define VMCS_GUEST_INTR_STATUS 0x00000810 #define VMCS_GUEST_PML_INDEX 0x00000812 #define VMCS_GUEST_IA32_DEBUGCTL 0x00002802 #define VMCS_GUEST_IA32_PAT 0x00002804 #define VMCS_GUEST_IA32_EFER 0x00002806 #define VMCS_GUEST_IA32_PERF_GLOBAL_CTRL 0x00002808 #define VMCS_GUEST_ES_SELECTOR 0x00000800 #define VMCS_GUEST_CS_SELECTOR 0x00000802 #define VMCS_GUEST_SS_SELECTOR 0x00000804 #define VMCS_GUEST_DS_SELECTOR 0x00000806 #define VMCS_GUEST_FS_SELECTOR 0x00000808 #define VMCS_GUEST_GS_SELECTOR 0x0000080a #define VMCS_GUEST_LDTR_SELECTOR 0x0000080c #define VMCS_GUEST_TR_SELECTOR 0x0000080e #define VMCS_GUEST_ES_LIMIT 0x00004800 #define VMCS_GUEST_CS_LIMIT 0x00004802 #define VMCS_GUEST_SS_LIMIT 0x00004804 #define VMCS_GUEST_DS_LIMIT 0x00004806 #define VMCS_GUEST_FS_LIMIT 0x00004808 #define VMCS_GUEST_GS_LIMIT 0x0000480a #define VMCS_GUEST_LDTR_LIMIT 0x0000480c #define VMCS_GUEST_TR_LIMIT 0x0000480e #define VMCS_GUEST_GDTR_LIMIT 0x00004810 #define VMCS_GUEST_IDTR_LIMIT 0x00004812 #define VMCS_GUEST_ES_ACCESS_RIGHTS 0x00004814 #define VMCS_GUEST_CS_ACCESS_RIGHTS 0x00004816 #define VMCS_GUEST_SS_ACCESS_RIGHTS 0x00004818 #define VMCS_GUEST_DS_ACCESS_RIGHTS 0x0000481a #define VMCS_GUEST_FS_ACCESS_RIGHTS 0x0000481c #define VMCS_GUEST_GS_ACCESS_RIGHTS 0x0000481e #define VMCS_GUEST_LDTR_ACCESS_RIGHTS 0x00004820 #define VMCS_GUEST_TR_ACCESS_RIGHTS 0x00004822 #define VMCS_GUEST_ACTIVITY_STATE 0x00004824 #define VMCS_GUEST_INTERRUPTIBILITY_INFO 0x00004826 #define VMCS_GUEST_SYSENTER_CS 0x0000482a #define VMCS_GUEST_CR0 0x00006800 #define VMCS_GUEST_CR3 0x00006802 #define VMCS_GUEST_CR4 0x00006804 #define VMCS_GUEST_ES_BASE 0x00006806 #define VMCS_GUEST_CS_BASE 0x00006808 #define VMCS_GUEST_SS_BASE 0x0000680a #define VMCS_GUEST_DS_BASE 0x0000680c #define VMCS_GUEST_FS_BASE 0x0000680e #define VMCS_GUEST_GS_BASE 0x00006810 #define VMCS_GUEST_LDTR_BASE 0x00006812 #define VMCS_GUEST_TR_BASE 0x00006814 #define VMCS_GUEST_GDTR_BASE 0x00006816 #define VMCS_GUEST_IDTR_BASE 0x00006818 #define VMCS_GUEST_DR7 0x0000681a #define VMCS_GUEST_RSP 0x0000681c #define VMCS_GUEST_RIP 0x0000681e #define VMCS_GUEST_RFLAGS 0x00006820 #define VMCS_GUEST_PENDING_DBG_EXCEPTIONS 0x00006822 #define VMCS_GUEST_SYSENTER_ESP 0x00006824 #define VMCS_GUEST_SYSENTER_EIP 0x00006826 #define VMCB_CTRL_INTERCEPT_VEC3 0x0c #define VMCB_CTRL_INTERCEPT_VEC3_ALL (0xffffffff) #define VMCB_CTRL_INTERCEPT_VEC4 0x10 #define VMCB_CTRL_INTERCEPT_VEC4_ALL (0x3ff) #define VMCB_CTRL_ASID 0x058 #define VMCB_EXIT_CODE 0x070 #define VMCB_CTRL_NP_ENABLE 0x090 #define VMCB_CTRL_NPT_ENABLE_BIT 0 #define VMCB_CTRL_N_CR3 0x0b0 #define VMCB_GUEST_ES_SEL 0x400 #define VMCB_GUEST_ES_ATTR 0x402 #define VMCB_GUEST_ES_LIM 0x404 #define VMCB_GUEST_ES_BASE 0x408 #define VMCB_GUEST_CS_SEL 0x410 #define VMCB_GUEST_CS_ATTR 0x412 #define VMCB_GUEST_CS_LIM 0x414 #define VMCB_GUEST_CS_BASE 0x418 #define VMCB_GUEST_SS_SEL 0x420 #define VMCB_GUEST_SS_ATTR 0x422 #define VMCB_GUEST_SS_LIM 0x424 #define VMCB_GUEST_SS_BASE 0x428 #define VMCB_GUEST_DS_SEL 0x430 #define VMCB_GUEST_DS_ATTR 0x432 #define VMCB_GUEST_DS_LIM 0x434 #define VMCB_GUEST_DS_BASE 0x438 #define VMCB_GUEST_FS_SEL 0x440 #define VMCB_GUEST_FS_ATTR 0x442 #define VMCB_GUEST_FS_LIM 0x444 #define VMCB_GUEST_FS_BASE 0x448 #define VMCB_GUEST_GS_SEL 0x450 #define VMCB_GUEST_GS_ATTR 0x452 #define VMCB_GUEST_GS_LIM 0x454 #define VMCB_GUEST_GS_BASE 0x458 #define VMCB_GUEST_IDTR_SEL 0x480 #define VMCB_GUEST_IDTR_ATTR 0x482 #define VMCB_GUEST_IDTR_LIM 0x484 #define VMCB_GUEST_IDTR_BASE 0x488 #define VMCB_GUEST_GDTR_SEL 0x460 #define VMCB_GUEST_GDTR_ATTR 0x462 #define VMCB_GUEST_GDTR_LIM 0x464 #define VMCB_GUEST_GDTR_BASE 0x468 #define VMCB_GUEST_LDTR_SEL 0x470 #define VMCB_GUEST_LDTR_ATTR 0x472 #define VMCB_GUEST_LDTR_LIM 0x474 #define VMCB_GUEST_LDTR_BASE 0x478 #define VMCB_GUEST_TR_SEL 0x490 #define VMCB_GUEST_TR_ATTR 0x492 #define VMCB_GUEST_TR_LIM 0x494 #define VMCB_GUEST_TR_BASE 0x498 #define VMCB_GUEST_EFER 0x4d0 #define VMCB_GUEST_CR4 0x548 #define VMCB_GUEST_CR3 0x550 #define VMCB_GUEST_CR0 0x558 #define VMCB_GUEST_DR7 0x560 #define VMCB_GUEST_DR6 0x568 #define VMCB_GUEST_RFLAGS 0x570 #define VMCB_GUEST_RIP 0x578 #define VMCB_GUEST_RSP 0x5d8 #define VMCB_GUEST_PAT 0x668 #define VMCB_GUEST_DEBUGCTL 0x670 #define SVM_ATTR_G (1 << 15) #define SVM_ATTR_DB (1 << 14) #define SVM_ATTR_L (1 << 13) #define SVM_ATTR_P (1 << 7) #define SVM_ATTR_S (1 << 4) #define SVM_ATTR_TYPE_A (1 << 0) #define SVM_ATTR_TYPE_RW (1 << 1) #define SVM_ATTR_TYPE_E (1 << 3) #define SVM_ATTR_64BIT_CODE (SVM_ATTR_P | SVM_ATTR_S | SVM_ATTR_TYPE_E | SVM_ATTR_TYPE_RW | SVM_ATTR_TYPE_A | SVM_ATTR_L | SVM_ATTR_G) #define SVM_ATTR_64BIT_DATA (SVM_ATTR_P | SVM_ATTR_S | SVM_ATTR_TYPE_RW | SVM_ATTR_TYPE_A | SVM_ATTR_DB | SVM_ATTR_G) #define X86_NEXT_INSN $0xbadc0de #define X86_PREFIX_SIZE 0xba1d #define KVM_MAX_VCPU 4 #define KVM_PAGE_SIZE (1 << 12) #define KVM_GUEST_PAGES 1024 #define KVM_GUEST_MEM_SIZE (KVM_GUEST_PAGES * KVM_PAGE_SIZE) #define SZ_4K 0x00001000 #define SZ_64K 0x00010000 #define GENMASK_ULL(h,l) (((~0ULL) - (1ULL << (l)) + 1ULL) & (~0ULL >> (63 - (h)))) extern char* __start_guest; static inline uintptr_t executor_fn_guest_addr(void* fn) { volatile uintptr_t start = (uintptr_t)&__start_guest; volatile uintptr_t offset = SYZOS_ADDR_EXECUTOR_CODE; return (uintptr_t)fn - start + offset; } typedef enum { SYZOS_API_UEXIT = 0, SYZOS_API_CODE = 10, SYZOS_API_CPUID = 100, SYZOS_API_WRMSR = 101, SYZOS_API_RDMSR = 102, SYZOS_API_WR_CRN = 103, SYZOS_API_WR_DRN = 104, SYZOS_API_IN_DX = 105, SYZOS_API_OUT_DX = 106, SYZOS_API_SET_IRQ_HANDLER = 200, SYZOS_API_ENABLE_NESTED = 300, SYZOS_API_NESTED_CREATE_VM = 301, SYZOS_API_NESTED_LOAD_CODE = 302, SYZOS_API_NESTED_VMLAUNCH = 303, SYZOS_API_NESTED_VMRESUME = 304, SYZOS_API_NESTED_INTEL_VMWRITE_MASK = 340, SYZOS_API_NESTED_AMD_VMCB_WRITE_MASK = 380, SYZOS_API_NESTED_AMD_INVLPGA = 381, SYZOS_API_NESTED_AMD_STGI = 382, SYZOS_API_NESTED_AMD_CLGI = 383, SYZOS_API_NESTED_AMD_INJECT_EVENT = 384, SYZOS_API_NESTED_AMD_SET_INTERCEPT = 385, SYZOS_API_NESTED_AMD_VMLOAD = 386, SYZOS_API_NESTED_AMD_VMSAVE = 387, SYZOS_API_STOP, } syzos_api_id; struct api_call_header { uint64_t call; uint64_t size; }; struct api_call_uexit { struct api_call_header header; uint64_t exit_code; }; struct api_call_code { struct api_call_header header; uint8_t insns[]; }; struct api_call_nested_load_code { struct api_call_header header; uint64_t vm_id; uint8_t insns[]; }; struct api_call_cpuid { struct api_call_header header; uint32_t eax; uint32_t ecx; }; struct api_call_1 { struct api_call_header header; uint64_t arg; }; struct api_call_2 { struct api_call_header header; uint64_t args[2]; }; struct api_call_3 { struct api_call_header header; uint64_t args[3]; }; struct api_call_5 { struct api_call_header header; uint64_t args[5]; }; struct l2_guest_regs { uint64_t rax, rbx, rcx, rdx, rsi, rdi, rbp; uint64_t r8, r9, r10, r11, r12, r13, r14, r15; }; GUEST_CODE static void guest_uexit(uint64_t exit_code); GUEST_CODE static void nested_vm_exit_handler_intel(uint64_t exit_reason, struct l2_guest_regs* regs); GUEST_CODE static void guest_execute_code(uint8_t* insns, uint64_t size); GUEST_CODE static void guest_handle_cpuid(uint32_t eax, uint32_t ecx); GUEST_CODE static void guest_handle_wrmsr(uint64_t reg, uint64_t val); GUEST_CODE static void guest_handle_rdmsr(uint64_t reg); GUEST_CODE static void guest_handle_wr_crn(struct api_call_2* cmd); GUEST_CODE static void guest_handle_wr_drn(struct api_call_2* cmd); GUEST_CODE static void guest_handle_in_dx(struct api_call_2* cmd); GUEST_CODE static void guest_handle_out_dx(struct api_call_3* cmd); GUEST_CODE static void guest_handle_set_irq_handler(struct api_call_2* cmd); GUEST_CODE static void guest_handle_enable_nested(struct api_call_1* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_create_vm(struct api_call_1* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_load_code(struct api_call_nested_load_code* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_vmlaunch(struct api_call_1* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_vmresume(struct api_call_1* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_intel_vmwrite_mask(struct api_call_5* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_vmcb_write_mask(struct api_call_5* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_invlpga(struct api_call_2* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_stgi(); GUEST_CODE static void guest_handle_nested_amd_clgi(); GUEST_CODE static void guest_handle_nested_amd_inject_event(struct api_call_5* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_set_intercept(struct api_call_5* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_vmload(struct api_call_1* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_vmsave(struct api_call_1* cmd, uint64_t cpu_id); typedef enum { UEXIT_END = (uint64_t)-1, UEXIT_IRQ = (uint64_t)-2, UEXIT_ASSERT = (uint64_t)-3, } uexit_code; typedef enum { CPU_VENDOR_INTEL, CPU_VENDOR_AMD, } cpu_vendor_id; __attribute__((naked)) GUEST_CODE static void dummy_null_handler() { asm("iretq"); } __attribute__((naked)) GUEST_CODE static void uexit_irq_handler() { asm volatile(R"( movq $-2, %rdi call guest_uexit iretq )"); } __attribute__((used)) GUEST_CODE static void guest_main(uint64_t size, uint64_t cpu) { uint64_t addr = X86_SYZOS_ADDR_USER_CODE + cpu * KVM_PAGE_SIZE; while (size >= sizeof(struct api_call_header)) { struct api_call_header* cmd = (struct api_call_header*)addr; if (cmd->call >= SYZOS_API_STOP) return; if (cmd->size > size) return; volatile uint64_t call = cmd->call; if (call == SYZOS_API_UEXIT) { struct api_call_uexit* ucmd = (struct api_call_uexit*)cmd; guest_uexit(ucmd->exit_code); } else if (call == SYZOS_API_CODE) { struct api_call_code* ccmd = (struct api_call_code*)cmd; guest_execute_code(ccmd->insns, cmd->size - sizeof(struct api_call_header)); } else if (call == SYZOS_API_CPUID) { struct api_call_cpuid* ccmd = (struct api_call_cpuid*)cmd; guest_handle_cpuid(ccmd->eax, ccmd->ecx); } else if (call == SYZOS_API_WRMSR) { struct api_call_2* ccmd = (struct api_call_2*)cmd; guest_handle_wrmsr(ccmd->args[0], ccmd->args[1]); } else if (call == SYZOS_API_RDMSR) { struct api_call_1* ccmd = (struct api_call_1*)cmd; guest_handle_rdmsr(ccmd->arg); } else if (call == SYZOS_API_WR_CRN) { guest_handle_wr_crn((struct api_call_2*)cmd); } else if (call == SYZOS_API_WR_DRN) { guest_handle_wr_drn((struct api_call_2*)cmd); } else if (call == SYZOS_API_IN_DX) { guest_handle_in_dx((struct api_call_2*)cmd); } else if (call == SYZOS_API_OUT_DX) { guest_handle_out_dx((struct api_call_3*)cmd); } else if (call == SYZOS_API_SET_IRQ_HANDLER) { guest_handle_set_irq_handler((struct api_call_2*)cmd); } else if (call == SYZOS_API_ENABLE_NESTED) { guest_handle_enable_nested((struct api_call_1*)cmd, cpu); } else if (call == SYZOS_API_NESTED_CREATE_VM) { guest_handle_nested_create_vm((struct api_call_1*)cmd, cpu); } else if (call == SYZOS_API_NESTED_LOAD_CODE) { guest_handle_nested_load_code((struct api_call_nested_load_code*)cmd, cpu); } else if (call == SYZOS_API_NESTED_VMLAUNCH) { guest_handle_nested_vmlaunch((struct api_call_1*)cmd, cpu); } else if (call == SYZOS_API_NESTED_VMRESUME) { guest_handle_nested_vmresume((struct api_call_1*)cmd, cpu); } else if (call == SYZOS_API_NESTED_INTEL_VMWRITE_MASK) { guest_handle_nested_intel_vmwrite_mask((struct api_call_5*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_VMCB_WRITE_MASK) { guest_handle_nested_amd_vmcb_write_mask((struct api_call_5*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_INVLPGA) { guest_handle_nested_amd_invlpga((struct api_call_2*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_STGI) { guest_handle_nested_amd_stgi(); } else if (call == SYZOS_API_NESTED_AMD_CLGI) { guest_handle_nested_amd_clgi(); } else if (call == SYZOS_API_NESTED_AMD_INJECT_EVENT) { guest_handle_nested_amd_inject_event((struct api_call_5*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_SET_INTERCEPT) { guest_handle_nested_amd_set_intercept((struct api_call_5*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_VMLOAD) { guest_handle_nested_amd_vmload((struct api_call_1*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_VMSAVE) { guest_handle_nested_amd_vmsave((struct api_call_1*)cmd, cpu); } addr += cmd->size; size -= cmd->size; }; guest_uexit((uint64_t)-1); } GUEST_CODE static noinline void guest_execute_code(uint8_t* insns, uint64_t size) { volatile void (*fn)() = (volatile void (*)())insns; fn(); } __attribute__((used)) GUEST_CODE static noinline void guest_uexit(uint64_t exit_code) { volatile uint64_t* ptr = (volatile uint64_t*)X86_SYZOS_ADDR_UEXIT; *ptr = exit_code; } GUEST_CODE static noinline void guest_handle_cpuid(uint32_t eax, uint32_t ecx) { asm volatile( "cpuid\n" : : "a"(eax), "c"(ecx) : "rbx", "rdx"); } GUEST_CODE static noinline void wrmsr(uint64_t reg, uint64_t val) { asm volatile( "wrmsr" : : "c"(reg), "a"((uint32_t)val), "d"((uint32_t)(val >> 32)) : "memory"); } GUEST_CODE static noinline void guest_handle_wrmsr(uint64_t reg, uint64_t val) { wrmsr(reg, val); } GUEST_CODE static noinline uint64_t rdmsr(uint64_t msr_id) { uint32_t low = 0, high = 0; asm volatile("rdmsr" : "=a"(low), "=d"(high) : "c"(msr_id)); return ((uint64_t)high << 32) | low; } GUEST_CODE static noinline void guest_handle_rdmsr(uint64_t reg) { (void)rdmsr(reg); } GUEST_CODE static noinline void guest_handle_wr_crn(struct api_call_2* cmd) { uint64_t value = cmd->args[1]; volatile uint64_t reg = cmd->args[0]; if (reg == 0) { asm volatile("movq %0, %%cr0" ::"r"(value) : "memory"); return; } if (reg == 2) { asm volatile("movq %0, %%cr2" ::"r"(value) : "memory"); return; } if (reg == 3) { asm volatile("movq %0, %%cr3" ::"r"(value) : "memory"); return; } if (reg == 4) { asm volatile("movq %0, %%cr4" ::"r"(value) : "memory"); return; } if (reg == 8) { asm volatile("movq %0, %%cr8" ::"r"(value) : "memory"); return; } } GUEST_CODE static noinline void guest_handle_wr_drn(struct api_call_2* cmd) { uint64_t value = cmd->args[1]; volatile uint64_t reg = cmd->args[0]; if (reg == 0) { asm volatile("movq %0, %%dr0" ::"r"(value) : "memory"); return; } if (reg == 1) { asm volatile("movq %0, %%dr1" ::"r"(value) : "memory"); return; } if (reg == 2) { asm volatile("movq %0, %%dr2" ::"r"(value) : "memory"); return; } if (reg == 3) { asm volatile("movq %0, %%dr3" ::"r"(value) : "memory"); return; } if (reg == 4) { asm volatile("movq %0, %%dr4" ::"r"(value) : "memory"); return; } if (reg == 5) { asm volatile("movq %0, %%dr5" ::"r"(value) : "memory"); return; } if (reg == 6) { asm volatile("movq %0, %%dr6" ::"r"(value) : "memory"); return; } if (reg == 7) { asm volatile("movq %0, %%dr7" ::"r"(value) : "memory"); return; } } GUEST_CODE static noinline void guest_handle_in_dx(struct api_call_2* cmd) { uint16_t port = cmd->args[0]; volatile int size = cmd->args[1]; if (size == 1) { uint8_t unused; asm volatile("inb %1, %0" : "=a"(unused) : "d"(port)); return; } if (size == 2) { uint16_t unused; asm volatile("inw %1, %0" : "=a"(unused) : "d"(port)); return; } if (size == 4) { uint32_t unused; asm volatile("inl %1, %0" : "=a"(unused) : "d"(port)); } return; } GUEST_CODE static noinline void guest_handle_out_dx(struct api_call_3* cmd) { uint16_t port = cmd->args[0]; volatile int size = cmd->args[1]; uint32_t data = (uint32_t)cmd->args[2]; if (size == 1) { asm volatile("outb %b0, %w1" ::"a"(data), "d"(port)); return; } if (size == 2) { asm volatile("outw %w0, %w1" ::"a"(data), "d"(port)); return; } if (size == 4) { asm volatile("outl %k0, %w1" ::"a"(data), "d"(port)); return; } } struct idt_entry_64 { uint16_t offset_low; uint16_t selector; uint8_t ist; uint8_t type_attr; uint16_t offset_mid; uint32_t offset_high; uint32_t reserved; } __attribute__((packed)); GUEST_CODE static void set_idt_gate(uint8_t vector, uint64_t handler) { volatile struct idt_entry_64* idt = (volatile struct idt_entry_64*)(X86_SYZOS_ADDR_VAR_IDT); volatile struct idt_entry_64* idt_entry = &idt[vector]; idt_entry->offset_low = (uint16_t)handler; idt_entry->offset_mid = (uint16_t)(handler >> 16); idt_entry->offset_high = (uint32_t)(handler >> 32); idt_entry->selector = X86_SYZOS_SEL_CODE; idt_entry->type_attr = 0x8E; idt_entry->ist = 0; idt_entry->reserved = 0; } GUEST_CODE static noinline void guest_handle_set_irq_handler(struct api_call_2* cmd) { uint8_t vector = (uint8_t)cmd->args[0]; uint64_t type = cmd->args[1]; volatile uint64_t handler_addr = 0; if (type == 1) handler_addr = executor_fn_guest_addr(dummy_null_handler); else if (type == 2) handler_addr = executor_fn_guest_addr(uexit_irq_handler); set_idt_gate(vector, handler_addr); } GUEST_CODE static cpu_vendor_id get_cpu_vendor(void) { uint32_t ebx, eax = 0; asm volatile( "cpuid" : "+a"(eax), "=b"(ebx) : : "ecx", "edx"); if (ebx == 0x756e6547) { return CPU_VENDOR_INTEL; } else if (ebx == 0x68747541) { return CPU_VENDOR_AMD; } else { guest_uexit(UEXIT_ASSERT); return CPU_VENDOR_INTEL; } } GUEST_CODE static inline uint64_t read_cr0(void) { uint64_t val; asm volatile("mov %%cr0, %0" : "=r"(val)); return val; } GUEST_CODE static inline uint64_t read_cr3(void) { uint64_t val; asm volatile("mov %%cr3, %0" : "=r"(val)); return val; } GUEST_CODE static inline uint64_t read_cr4(void) { uint64_t val; asm volatile("mov %%cr4, %0" : "=r"(val)); return val; } GUEST_CODE static inline void write_cr4(uint64_t val) { asm volatile("mov %0, %%cr4" : : "r"(val)); } GUEST_CODE static noinline void vmwrite(uint64_t field, uint64_t value) { uint8_t error = 0; asm volatile("vmwrite %%rax, %%rbx; setna %0" : "=q"(error) : "a"(value), "b"(field) : "cc", "memory"); if (error) guest_uexit(UEXIT_ASSERT); } GUEST_CODE static noinline uint64_t vmread(uint64_t field) { uint64_t value; asm volatile("vmread %%rbx, %%rax" : "=a"(value) : "b"(field) : "cc"); return value; } GUEST_CODE static inline void nested_vmptrld(uint64_t cpu_id, uint64_t vm_id) { uint64_t vmcs_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint8_t error = 0; asm volatile("vmptrld %1; setna %0" : "=q"(error) : "m"(vmcs_addr) : "memory", "cc"); if (error) guest_uexit(0xE2BAD2); } GUEST_CODE static noinline void vmcb_write16(uint64_t vmcb, uint16_t offset, uint16_t val) { *((volatile uint16_t*)(vmcb + offset)) = val; } GUEST_CODE static noinline void vmcb_write32(uint64_t vmcb, uint16_t offset, uint32_t val) { *((volatile uint32_t*)(vmcb + offset)) = val; } GUEST_CODE static noinline uint32_t vmcb_read32(uint64_t vmcb, uint16_t offset) { return *((volatile uint32_t*)(vmcb + offset)); } GUEST_CODE static noinline void vmcb_write64(uint64_t vmcb, uint16_t offset, uint64_t val) { *((volatile uint64_t*)(vmcb + offset)) = val; } GUEST_CODE static noinline uint64_t vmcb_read64(volatile uint8_t* vmcb, uint16_t offset) { return *((volatile uint64_t*)(vmcb + offset)); } GUEST_CODE static void guest_memset(void* s, uint8_t c, int size) { volatile uint8_t* p = (volatile uint8_t*)s; for (int i = 0; i < size; i++) p[i] = c; } GUEST_CODE static void guest_memcpy(void* dst, void* src, int size) { volatile uint8_t* d = (volatile uint8_t*)dst; volatile uint8_t* s = (volatile uint8_t*)src; for (int i = 0; i < size; i++) d[i] = s[i]; } GUEST_CODE static noinline void nested_enable_vmx_intel(uint64_t cpu_id) { uint64_t vmxon_addr = X86_SYZOS_ADDR_VM_ARCH_SPECIFIC(cpu_id); uint64_t cr4 = read_cr4(); cr4 |= X86_CR4_VMXE; write_cr4(cr4); uint64_t feature_control = rdmsr(X86_MSR_IA32_FEATURE_CONTROL); if ((feature_control & 1) == 0) { feature_control |= 0b101; asm volatile("wrmsr" : : "d"(0x0), "c"(X86_MSR_IA32_FEATURE_CONTROL), "A"(feature_control)); } *(uint32_t*)vmxon_addr = rdmsr(X86_MSR_IA32_VMX_BASIC); uint8_t error; asm volatile("vmxon %1; setna %0" : "=q"(error) : "m"(vmxon_addr) : "memory", "cc"); if (error) { guest_uexit(0xE2BAD0); return; } } GUEST_CODE static noinline void nested_enable_svm_amd(uint64_t cpu_id) { uint64_t hsave_addr = X86_SYZOS_ADDR_VM_ARCH_SPECIFIC(cpu_id); uint64_t efer = rdmsr(X86_MSR_IA32_EFER); efer |= X86_EFER_SVME; wrmsr(X86_MSR_IA32_EFER, efer); wrmsr(X86_MSR_VM_HSAVE_PA, hsave_addr); } GUEST_CODE static noinline void guest_handle_enable_nested(struct api_call_1* cmd, uint64_t cpu_id) { if (get_cpu_vendor() == CPU_VENDOR_INTEL) { nested_enable_vmx_intel(cpu_id); } else { nested_enable_svm_amd(cpu_id); } } GUEST_CODE static noinline void setup_l2_page_tables(cpu_vendor_id vendor, uint64_t cpu_id, uint64_t vm_id) { uint64_t l2_pml4_addr = X86_SYZOS_ADDR_VM_PGTABLE(cpu_id, vm_id); uint64_t l2_pdpt_addr = l2_pml4_addr + KVM_PAGE_SIZE; uint64_t l2_pd_addr = l2_pml4_addr + 2 * KVM_PAGE_SIZE; uint64_t l2_pt_addr = l2_pml4_addr + 3 * KVM_PAGE_SIZE; volatile uint64_t* pml4 = (volatile uint64_t*)l2_pml4_addr; volatile uint64_t* pdpt = (volatile uint64_t*)l2_pdpt_addr; volatile uint64_t* pd = (volatile uint64_t*)l2_pd_addr; volatile uint64_t* pt = (volatile uint64_t*)l2_pt_addr; guest_memset((void*)l2_pml4_addr, 0, KVM_PAGE_SIZE); guest_memset((void*)l2_pdpt_addr, 0, KVM_PAGE_SIZE); guest_memset((void*)l2_pd_addr, 0, KVM_PAGE_SIZE); guest_memset((void*)l2_pt_addr, 0, KVM_PAGE_SIZE); guest_memset((void*)X86_SYZOS_ADDR_MSR_BITMAP(cpu_id, vm_id), 0, KVM_PAGE_SIZE); uint64_t flags = X86_PDE64_PRESENT | X86_PDE64_RW | X86_PDE64_USER; pml4[0] = l2_pdpt_addr | flags; pdpt[0] = l2_pd_addr | flags; pd[0] = l2_pt_addr | flags; uint64_t pt_flags = flags; if (vendor == CPU_VENDOR_INTEL) { pt_flags |= EPT_MEMTYPE_WB | EPT_ACCESSED | EPT_DIRTY; } else { pt_flags |= X86_PDE64_ACCESSED | X86_PDE64_DIRTY; } for (int i = 0; i < 512; i++) pt[i] = (i * KVM_PAGE_SIZE) | pt_flags; } GUEST_CODE static noinline void init_vmcs_control_fields(uint64_t cpu_id, uint64_t vm_id) { uint64_t vmx_msr = rdmsr(X86_MSR_IA32_VMX_TRUE_PINBASED_CTLS); vmwrite(VMCS_PIN_BASED_VM_EXEC_CONTROL, (uint32_t)vmx_msr); vmx_msr = (uint32_t)rdmsr(X86_MSR_IA32_VMX_PROCBASED_CTLS2); vmx_msr |= SECONDARY_EXEC_ENABLE_EPT | SECONDARY_EXEC_ENABLE_RDTSCP; vmwrite(VMCS_SECONDARY_VM_EXEC_CONTROL, vmx_msr); vmx_msr = rdmsr(X86_MSR_IA32_VMX_TRUE_PROCBASED_CTLS); vmx_msr |= CPU_BASED_ACTIVATE_SECONDARY_CONTROLS; vmx_msr |= CPU_BASED_HLT_EXITING | CPU_BASED_RDTSC_EXITING; vmwrite(VMCS_CPU_BASED_VM_EXEC_CONTROL, (uint32_t)vmx_msr); vmx_msr = rdmsr(X86_MSR_IA32_VMX_TRUE_EXIT_CTLS); vmwrite(VMCS_VM_EXIT_CONTROLS, (uint32_t)vmx_msr | VM_EXIT_HOST_ADDR_SPACE_SIZE); vmx_msr = rdmsr(X86_MSR_IA32_VMX_TRUE_ENTRY_CTLS); vmwrite(VMCS_VM_ENTRY_CONTROLS, (uint32_t)vmx_msr | VM_ENTRY_IA32E_MODE); uint64_t eptp = (X86_SYZOS_ADDR_VM_PGTABLE(cpu_id, vm_id) & ~0xFFF) | (6 << 0) | (3 << 3); vmwrite(VMCS_EPT_POINTER, eptp); vmwrite(VMCS_CR0_GUEST_HOST_MASK, 0); vmwrite(VMCS_CR4_GUEST_HOST_MASK, 0); vmwrite(VMCS_CR0_READ_SHADOW, read_cr0()); vmwrite(VMCS_CR4_READ_SHADOW, read_cr4()); vmwrite(VMCS_MSR_BITMAP, 0); vmwrite(VMCS_VMREAD_BITMAP, 0); vmwrite(VMCS_VMWRITE_BITMAP, 0); vmwrite(VMCS_EXCEPTION_BITMAP, (1 << 6)); vmwrite(VMCS_VIRTUAL_PROCESSOR_ID, 0); vmwrite(VMCS_POSTED_INTR_NV, 0); vmwrite(VMCS_PAGE_FAULT_ERROR_CODE_MASK, 0); vmwrite(VMCS_PAGE_FAULT_ERROR_CODE_MATCH, -1); vmwrite(VMCS_CR3_TARGET_COUNT, 0); vmwrite(VMCS_VM_EXIT_MSR_STORE_COUNT, 0); vmwrite(VMCS_VM_EXIT_MSR_LOAD_COUNT, 0); vmwrite(VMCS_VM_ENTRY_MSR_LOAD_COUNT, 0); vmwrite(VMCS_VM_ENTRY_INTR_INFO_FIELD, 0); vmwrite(VMCS_TPR_THRESHOLD, 0); } typedef enum { SYZOS_NESTED_EXIT_REASON_HLT = 1, SYZOS_NESTED_EXIT_REASON_INVD = 2, SYZOS_NESTED_EXIT_REASON_CPUID = 3, SYZOS_NESTED_EXIT_REASON_RDTSC = 4, SYZOS_NESTED_EXIT_REASON_RDTSCP = 5, SYZOS_NESTED_EXIT_REASON_UNKNOWN = 0xFF, } syz_nested_exit_reason; GUEST_CODE static void guest_uexit_l2(uint64_t exit_reason, syz_nested_exit_reason mapped_reason, cpu_vendor_id vendor) { if (mapped_reason != SYZOS_NESTED_EXIT_REASON_UNKNOWN) { guest_uexit(0xe2e20000 | mapped_reason); } else if (vendor == CPU_VENDOR_INTEL) { guest_uexit(0xe2110000 | exit_reason); } else { guest_uexit(0xe2aa0000 | exit_reason); } } #define EXIT_REASON_CPUID 0xa #define EXIT_REASON_HLT 0xc #define EXIT_REASON_INVD 0xd #define EXIT_REASON_RDTSC 0x10 #define EXIT_REASON_RDTSCP 0x33 GUEST_CODE static syz_nested_exit_reason map_intel_exit_reason(uint64_t basic_reason) { volatile uint64_t reason = basic_reason; if (reason == EXIT_REASON_HLT) return SYZOS_NESTED_EXIT_REASON_HLT; if (reason == EXIT_REASON_INVD) return SYZOS_NESTED_EXIT_REASON_INVD; if (reason == EXIT_REASON_CPUID) return SYZOS_NESTED_EXIT_REASON_CPUID; if (reason == EXIT_REASON_RDTSC) return SYZOS_NESTED_EXIT_REASON_RDTSC; if (reason == EXIT_REASON_RDTSCP) return SYZOS_NESTED_EXIT_REASON_RDTSCP; return SYZOS_NESTED_EXIT_REASON_UNKNOWN; } GUEST_CODE static void advance_l2_rip_intel(uint64_t basic_reason) { volatile uint64_t reason = basic_reason; uint64_t rip = vmread(VMCS_GUEST_RIP); if ((reason == EXIT_REASON_INVD) || (reason == EXIT_REASON_CPUID) || (reason == EXIT_REASON_RDTSC)) { rip += 2; } else if (reason == EXIT_REASON_RDTSCP) { rip += 3; } vmwrite(VMCS_GUEST_RIP, rip); } __attribute__((used)) GUEST_CODE static void nested_vm_exit_handler_intel(uint64_t exit_reason, struct l2_guest_regs* regs) { uint64_t basic_reason = exit_reason & 0xFFFF; syz_nested_exit_reason mapped_reason = map_intel_exit_reason(basic_reason); guest_uexit_l2(exit_reason, mapped_reason, CPU_VENDOR_INTEL); advance_l2_rip_intel(basic_reason); } extern char after_vmentry_label; __attribute__((naked)) GUEST_CODE static void nested_vm_exit_handler_intel_asm(void) { asm volatile(R"( push %%rax push %%rbx push %%rcx push %%rdx push %%rsi push %%rdi push %%rbp push %%r8 push %%r9 push %%r10 push %%r11 push %%r12 push %%r13 push %%r14 push %%r15 mov %%rsp, %%rsi mov %[vm_exit_reason], %%rbx vmread %%rbx, %%rdi call nested_vm_exit_handler_intel add %[stack_cleanup_size], %%rsp jmp after_vmentry_label )" : : [stack_cleanup_size] "i"(sizeof(struct l2_guest_regs)), [vm_exit_reason] "i"(VMCS_VM_EXIT_REASON) : "memory", "cc", "rbx", "rdi", "rsi"); } #define VMEXIT_RDTSC 0x6e #define VMEXIT_CPUID 0x72 #define VMEXIT_INVD 0x76 #define VMEXIT_HLT 0x78 #define VMEXIT_RDTSCP 0x87 GUEST_CODE static syz_nested_exit_reason map_amd_exit_reason(uint64_t basic_reason) { volatile uint64_t reason = basic_reason; if (reason == VMEXIT_HLT) return SYZOS_NESTED_EXIT_REASON_HLT; if (reason == VMEXIT_INVD) return SYZOS_NESTED_EXIT_REASON_INVD; if (reason == VMEXIT_CPUID) return SYZOS_NESTED_EXIT_REASON_CPUID; if (reason == VMEXIT_RDTSC) return SYZOS_NESTED_EXIT_REASON_RDTSC; if (reason == VMEXIT_RDTSCP) return SYZOS_NESTED_EXIT_REASON_RDTSCP; return SYZOS_NESTED_EXIT_REASON_UNKNOWN; } GUEST_CODE static void advance_l2_rip_amd(uint64_t basic_reason, uint64_t cpu_id, uint64_t vm_id) { volatile uint64_t reason = basic_reason; uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint64_t rip = vmcb_read64((volatile uint8_t*)vmcb_addr, VMCB_GUEST_RIP); if ((reason == VMEXIT_INVD) || (reason == VMEXIT_CPUID) || (reason == VMEXIT_RDTSC)) { rip += 2; } else if (reason == VMEXIT_RDTSCP) { rip += 3; } vmcb_write64(vmcb_addr, VMCB_GUEST_RIP, rip); } __attribute__((used)) GUEST_CODE static void nested_vm_exit_handler_amd(uint64_t exit_reason, uint64_t cpu_id, uint64_t vm_id) { volatile uint64_t basic_reason = exit_reason & 0xFFFF; syz_nested_exit_reason mapped_reason = map_amd_exit_reason(basic_reason); guest_uexit_l2(exit_reason, mapped_reason, CPU_VENDOR_AMD); advance_l2_rip_amd(basic_reason, cpu_id, vm_id); } GUEST_CODE static noinline void init_vmcs_host_state(void) { vmwrite(VMCS_HOST_CS_SELECTOR, X86_SYZOS_SEL_CODE); vmwrite(VMCS_HOST_DS_SELECTOR, X86_SYZOS_SEL_DATA); vmwrite(VMCS_HOST_ES_SELECTOR, X86_SYZOS_SEL_DATA); vmwrite(VMCS_HOST_SS_SELECTOR, X86_SYZOS_SEL_DATA); vmwrite(VMCS_HOST_FS_SELECTOR, X86_SYZOS_SEL_DATA); vmwrite(VMCS_HOST_GS_SELECTOR, X86_SYZOS_SEL_DATA); vmwrite(VMCS_HOST_TR_SELECTOR, X86_SYZOS_SEL_TSS64); vmwrite(VMCS_HOST_TR_BASE, 0); vmwrite(VMCS_HOST_GDTR_BASE, X86_SYZOS_ADDR_GDT); vmwrite(VMCS_HOST_IDTR_BASE, X86_SYZOS_ADDR_VAR_IDT); vmwrite(VMCS_HOST_FS_BASE, rdmsr(X86_MSR_FS_BASE)); vmwrite(VMCS_HOST_GS_BASE, rdmsr(X86_MSR_GS_BASE)); uint64_t tmpreg = 0; asm volatile("mov %%rsp, %0" : "=r"(tmpreg)); vmwrite(VMCS_HOST_RSP, tmpreg); vmwrite(VMCS_HOST_RIP, (uintptr_t)nested_vm_exit_handler_intel_asm); vmwrite(VMCS_HOST_CR0, read_cr0()); vmwrite(VMCS_HOST_CR3, read_cr3()); vmwrite(VMCS_HOST_CR4, read_cr4()); vmwrite(VMCS_HOST_IA32_PAT, rdmsr(X86_MSR_IA32_CR_PAT)); vmwrite(VMCS_HOST_IA32_EFER, rdmsr(X86_MSR_IA32_EFER)); vmwrite(VMCS_HOST_IA32_PERF_GLOBAL_CTRL, rdmsr(X86_MSR_CORE_PERF_GLOBAL_CTRL)); vmwrite(VMCS_HOST_IA32_SYSENTER_CS, rdmsr(X86_MSR_IA32_SYSENTER_CS)); vmwrite(VMCS_HOST_IA32_SYSENTER_ESP, rdmsr(X86_MSR_IA32_SYSENTER_ESP)); vmwrite(VMCS_HOST_IA32_SYSENTER_EIP, rdmsr(X86_MSR_IA32_SYSENTER_EIP)); } #define COPY_VMCS_FIELD(GUEST_FIELD,HOST_FIELD) vmwrite(GUEST_FIELD, vmread(HOST_FIELD)) #define SETUP_L2_SEGMENT(SEG,SELECTOR,BASE,LIMIT,AR) vmwrite(VMCS_GUEST_ ##SEG ##_SELECTOR, SELECTOR); vmwrite(VMCS_GUEST_ ##SEG ##_BASE, BASE); vmwrite(VMCS_GUEST_ ##SEG ##_LIMIT, LIMIT); vmwrite(VMCS_GUEST_ ##SEG ##_ACCESS_RIGHTS, AR); GUEST_CODE static noinline void init_vmcs_guest_state(uint64_t cpu_id, uint64_t vm_id) { uint64_t l2_code_addr = X86_SYZOS_ADDR_VM_CODE(cpu_id, vm_id); uint64_t l2_stack_addr = X86_SYZOS_ADDR_VM_STACK(cpu_id, vm_id); SETUP_L2_SEGMENT(CS, vmread(VMCS_HOST_CS_SELECTOR), 0, 0xFFFFFFFF, VMX_AR_64BIT_CODE); SETUP_L2_SEGMENT(DS, vmread(VMCS_HOST_DS_SELECTOR), 0, 0xFFFFFFFF, VMX_AR_64BIT_DATA_STACK); SETUP_L2_SEGMENT(ES, vmread(VMCS_HOST_ES_SELECTOR), 0, 0xFFFFFFFF, VMX_AR_64BIT_DATA_STACK); SETUP_L2_SEGMENT(SS, vmread(VMCS_HOST_SS_SELECTOR), 0, 0xFFFFFFFF, VMX_AR_64BIT_DATA_STACK); SETUP_L2_SEGMENT(FS, vmread(VMCS_HOST_FS_SELECTOR), vmread(VMCS_HOST_FS_BASE), 0xFFFFFFFF, VMX_AR_64BIT_DATA_STACK); SETUP_L2_SEGMENT(GS, vmread(VMCS_HOST_GS_SELECTOR), vmread(VMCS_HOST_GS_BASE), 0xFFFFFFFF, VMX_AR_64BIT_DATA_STACK); SETUP_L2_SEGMENT(TR, vmread(VMCS_HOST_TR_SELECTOR), vmread(VMCS_HOST_TR_BASE), 0x67, VMX_AR_TSS_BUSY); SETUP_L2_SEGMENT(LDTR, 0, 0, 0, VMX_AR_LDTR_UNUSABLE); vmwrite(VMCS_GUEST_CR0, vmread(VMCS_HOST_CR0)); vmwrite(VMCS_GUEST_CR3, vmread(VMCS_HOST_CR3)); vmwrite(VMCS_GUEST_CR4, vmread(VMCS_HOST_CR4)); vmwrite(VMCS_GUEST_RIP, l2_code_addr); vmwrite(VMCS_GUEST_RSP, l2_stack_addr + KVM_PAGE_SIZE - 8); vmwrite(VMCS_GUEST_RFLAGS, RFLAGS_1_BIT); vmwrite(VMCS_GUEST_DR7, 0x400); COPY_VMCS_FIELD(VMCS_GUEST_IA32_EFER, VMCS_HOST_IA32_EFER); COPY_VMCS_FIELD(VMCS_GUEST_IA32_PAT, VMCS_HOST_IA32_PAT); COPY_VMCS_FIELD(VMCS_GUEST_IA32_PERF_GLOBAL_CTRL, VMCS_HOST_IA32_PERF_GLOBAL_CTRL); COPY_VMCS_FIELD(VMCS_GUEST_SYSENTER_CS, VMCS_HOST_IA32_SYSENTER_CS); COPY_VMCS_FIELD(VMCS_GUEST_SYSENTER_ESP, VMCS_HOST_IA32_SYSENTER_ESP); COPY_VMCS_FIELD(VMCS_GUEST_SYSENTER_EIP, VMCS_HOST_IA32_SYSENTER_EIP); vmwrite(VMCS_GUEST_IA32_DEBUGCTL, 0); vmwrite(VMCS_GUEST_GDTR_BASE, vmread(VMCS_HOST_GDTR_BASE)); vmwrite(VMCS_GUEST_GDTR_LIMIT, 0xffff); vmwrite(VMCS_GUEST_IDTR_BASE, vmread(VMCS_HOST_IDTR_BASE)); vmwrite(VMCS_GUEST_IDTR_LIMIT, 0xffff); vmwrite(VMCS_LINK_POINTER, 0xffffffffffffffff); vmwrite(VMCS_GUEST_ACTIVITY_STATE, 0); vmwrite(VMCS_GUEST_INTERRUPTIBILITY_INFO, 0); vmwrite(VMCS_GUEST_PENDING_DBG_EXCEPTIONS, 0); vmwrite(VMCS_VMX_PREEMPTION_TIMER_VALUE, 0); vmwrite(VMCS_GUEST_INTR_STATUS, 0); vmwrite(VMCS_GUEST_PML_INDEX, 0); } GUEST_CODE static noinline void nested_create_vm_intel(struct api_call_1* cmd, uint64_t cpu_id) { uint64_t vm_id = cmd->arg; uint64_t vmcs_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint8_t error = 0; *(uint32_t*)vmcs_addr = rdmsr(X86_MSR_IA32_VMX_BASIC); asm volatile("vmclear %1; setna %0" : "=q"(error) : "m"(vmcs_addr) : "memory", "cc"); if (error) { guest_uexit(0xE2BAD1); return; } nested_vmptrld(cpu_id, vm_id); setup_l2_page_tables(CPU_VENDOR_INTEL, cpu_id, vm_id); init_vmcs_control_fields(cpu_id, vm_id); init_vmcs_host_state(); init_vmcs_guest_state(cpu_id, vm_id); } #define SETUP_L2_SEGMENT_SVM(VMBC_PTR,SEG_NAME,SELECTOR,BASE,LIMIT,ATTR) vmcb_write16(VMBC_PTR, VMCB_GUEST_ ##SEG_NAME ##_SEL, SELECTOR); vmcb_write16(VMBC_PTR, VMCB_GUEST_ ##SEG_NAME ##_ATTR, ATTR); vmcb_write32(VMBC_PTR, VMCB_GUEST_ ##SEG_NAME ##_LIM, LIMIT); vmcb_write64(VMBC_PTR, VMCB_GUEST_ ##SEG_NAME ##_BASE, BASE); GUEST_CODE static noinline void init_vmcb_guest_state(uint64_t cpu_id, uint64_t vm_id) { uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint64_t l2_code_addr = X86_SYZOS_ADDR_VM_CODE(cpu_id, vm_id); uint64_t l2_stack_addr = X86_SYZOS_ADDR_VM_STACK(cpu_id, vm_id); uint64_t npt_pml4_addr = X86_SYZOS_ADDR_VM_PGTABLE(cpu_id, vm_id); SETUP_L2_SEGMENT_SVM(vmcb_addr, CS, X86_SYZOS_SEL_CODE, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_CODE); SETUP_L2_SEGMENT_SVM(vmcb_addr, DS, X86_SYZOS_SEL_DATA, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_DATA); SETUP_L2_SEGMENT_SVM(vmcb_addr, ES, X86_SYZOS_SEL_DATA, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_DATA); SETUP_L2_SEGMENT_SVM(vmcb_addr, SS, X86_SYZOS_SEL_DATA, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_DATA); SETUP_L2_SEGMENT_SVM(vmcb_addr, FS, X86_SYZOS_SEL_DATA, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_DATA); SETUP_L2_SEGMENT_SVM(vmcb_addr, GS, X86_SYZOS_SEL_DATA, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_DATA); SETUP_L2_SEGMENT_SVM(vmcb_addr, TR, X86_SYZOS_SEL_TSS64, X86_SYZOS_ADDR_VAR_TSS, 0x67, VMX_AR_TSS_AVAILABLE); SETUP_L2_SEGMENT_SVM(vmcb_addr, LDTR, 0, 0, 0, SVM_ATTR_LDTR_UNUSABLE); uint64_t efer = rdmsr(X86_MSR_IA32_EFER); vmcb_write64(vmcb_addr, VMCB_GUEST_CR0, read_cr0() | X86_CR0_WP); vmcb_write64(vmcb_addr, VMCB_GUEST_CR3, read_cr3()); vmcb_write64(vmcb_addr, VMCB_GUEST_CR4, read_cr4()); vmcb_write64(vmcb_addr, VMCB_GUEST_RIP, l2_code_addr); vmcb_write64(vmcb_addr, VMCB_GUEST_RSP, l2_stack_addr + KVM_PAGE_SIZE - 8); vmcb_write64(vmcb_addr, VMCB_GUEST_RFLAGS, RFLAGS_1_BIT); vmcb_write64(vmcb_addr, VMCB_GUEST_DEBUGCTL, 0); vmcb_write64(vmcb_addr, VMCB_GUEST_DR6, 0x0); vmcb_write64(vmcb_addr, VMCB_GUEST_DR7, 0x0); vmcb_write64(vmcb_addr, VMCB_GUEST_EFER, efer & ~X86_EFER_SCE); vmcb_write64(vmcb_addr, VMCB_GUEST_PAT, rdmsr(X86_MSR_IA32_CR_PAT)); struct { uint16_t limit; uint64_t base; } __attribute__((packed)) gdtr, idtr; asm volatile("sgdt %0" : "=m"(gdtr)); asm volatile("sidt %0" : "=m"(idtr)); vmcb_write64(vmcb_addr, VMCB_GUEST_GDTR_BASE, gdtr.base); vmcb_write32(vmcb_addr, VMCB_GUEST_GDTR_LIM, gdtr.limit); vmcb_write64(vmcb_addr, VMCB_GUEST_IDTR_BASE, idtr.base); vmcb_write32(vmcb_addr, VMCB_GUEST_IDTR_LIM, idtr.limit); vmcb_write32(vmcb_addr, VMCB_CTRL_INTERCEPT_VEC3, VMCB_CTRL_INTERCEPT_VEC3_ALL); vmcb_write32(vmcb_addr, VMCB_CTRL_INTERCEPT_VEC4, VMCB_CTRL_INTERCEPT_VEC4_ALL); vmcb_write64(vmcb_addr, VMCB_CTRL_NP_ENABLE, (1 << VMCB_CTRL_NPT_ENABLE_BIT)); uint64_t npt_pointer = (npt_pml4_addr & ~0xFFF); vmcb_write64(vmcb_addr, VMCB_CTRL_N_CR3, npt_pointer); vmcb_write32(vmcb_addr, VMCB_CTRL_ASID, 1); } GUEST_CODE static noinline void nested_create_vm_amd(struct api_call_1* cmd, uint64_t cpu_id) { uint64_t vm_id = cmd->arg; uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); guest_memset((void*)vmcb_addr, 0, KVM_PAGE_SIZE); guest_memset((void*)X86_SYZOS_ADDR_VM_ARCH_SPECIFIC(cpu_id), 0, KVM_PAGE_SIZE); setup_l2_page_tables(CPU_VENDOR_AMD, cpu_id, vm_id); init_vmcb_guest_state(cpu_id, vm_id); } GUEST_CODE static noinline void guest_handle_nested_create_vm(struct api_call_1* cmd, uint64_t cpu_id) { if (get_cpu_vendor() == CPU_VENDOR_INTEL) { nested_create_vm_intel(cmd, cpu_id); } else { nested_create_vm_amd(cmd, cpu_id); } } GUEST_CODE static noinline void guest_handle_nested_load_code(struct api_call_nested_load_code* cmd, uint64_t cpu_id) { uint64_t vm_id = cmd->vm_id; uint64_t l2_code_addr = X86_SYZOS_ADDR_VM_CODE(cpu_id, vm_id); uint64_t l2_stack_addr = X86_SYZOS_ADDR_VM_STACK(cpu_id, vm_id); uint64_t l2_code_size = cmd->header.size - sizeof(struct api_call_header) - sizeof(uint64_t); if (l2_code_size > KVM_PAGE_SIZE) l2_code_size = KVM_PAGE_SIZE; guest_memcpy((void*)l2_code_addr, (void*)cmd->insns, l2_code_size); if (get_cpu_vendor() == CPU_VENDOR_INTEL) { nested_vmptrld(cpu_id, vm_id); vmwrite(VMCS_GUEST_RIP, l2_code_addr); vmwrite(VMCS_GUEST_RSP, l2_stack_addr + KVM_PAGE_SIZE - 8); } else { vmcb_write64(X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id), VMCB_GUEST_RIP, l2_code_addr); vmcb_write64(X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id), VMCB_GUEST_RSP, l2_stack_addr + KVM_PAGE_SIZE - 8); } } GUEST_CODE static noinline __optnone void guest_handle_nested_vmentry_intel(uint64_t vm_id, uint64_t cpu_id, bool is_launch) { uint64_t vmx_error_code = 0; uint8_t fail_flag = 0; nested_vmptrld(cpu_id, vm_id); if (is_launch) { asm volatile(R"( vmlaunch setc %%al setz %%bl or %%bl, %%al)" : "=a"(fail_flag) : : "rbx", "cc", "memory"); } else { asm volatile(R"( vmresume setc %%al setz %%bl or %%bl, %%al)" : "=a"(fail_flag) : : "rbx", "cc", "memory"); } asm volatile(".globl after_vmentry_label\nafter_vmentry_label:"); if (fail_flag) { vmx_error_code = vmread(VMCS_VM_INSTRUCTION_ERROR); guest_uexit(0xE2E10000 | (uint32_t)vmx_error_code); return; } } GUEST_CODE static noinline void guest_run_amd_vm(uint64_t cpu_id, uint64_t vm_id) { uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); volatile uint8_t* vmcb_ptr = (volatile uint8_t*)vmcb_addr; uint8_t fail_flag = 0; asm volatile( "mov %1, %%rax\n\t" "vmrun\n\t" "setc %0\n\t" : "=q"(fail_flag) : "m"(vmcb_addr) : "rax", "cc", "memory"); if (fail_flag) { guest_uexit(0xE2E10000 | 0xFFFF); return; } uint64_t exit_reason = vmcb_read64(vmcb_ptr, VMCB_EXIT_CODE); nested_vm_exit_handler_amd(exit_reason, cpu_id, vm_id); } GUEST_CODE static noinline void guest_handle_nested_vmlaunch(struct api_call_1* cmd, uint64_t cpu_id) { uint64_t vm_id = cmd->arg; if (get_cpu_vendor() == CPU_VENDOR_INTEL) { guest_handle_nested_vmentry_intel(vm_id, cpu_id, true); } else { guest_run_amd_vm(cpu_id, vm_id); } } GUEST_CODE static noinline void guest_handle_nested_vmresume(struct api_call_1* cmd, uint64_t cpu_id) { uint64_t vm_id = cmd->arg; if (get_cpu_vendor() == CPU_VENDOR_INTEL) { guest_handle_nested_vmentry_intel(vm_id, cpu_id, false); } else { guest_run_amd_vm(cpu_id, vm_id); } } GUEST_CODE static noinline void guest_handle_nested_intel_vmwrite_mask(struct api_call_5* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_INTEL) return; uint64_t vm_id = cmd->args[0]; nested_vmptrld(cpu_id, vm_id); uint64_t field = cmd->args[1]; uint64_t set_mask = cmd->args[2]; uint64_t unset_mask = cmd->args[3]; uint64_t flip_mask = cmd->args[4]; uint64_t current_value = vmread(field); uint64_t new_value = (current_value & ~unset_mask) | set_mask; new_value ^= flip_mask; vmwrite(field, new_value); } GUEST_CODE static noinline void guest_handle_nested_amd_vmcb_write_mask(struct api_call_5* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t vm_id = cmd->args[0]; uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint64_t offset = cmd->args[1]; uint64_t set_mask = cmd->args[2]; uint64_t unset_mask = cmd->args[3]; uint64_t flip_mask = cmd->args[4]; uint64_t current_value = vmcb_read64((volatile uint8_t*)vmcb_addr, offset); uint64_t new_value = (current_value & ~unset_mask) | set_mask; new_value ^= flip_mask; vmcb_write64(vmcb_addr, offset, new_value); } GUEST_CODE static noinline void guest_handle_nested_amd_invlpga(struct api_call_2* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t linear_addr = cmd->args[0]; uint32_t asid = (uint32_t)cmd->args[1]; asm volatile("invlpga" : : "a"(linear_addr), "c"(asid) : "memory"); } GUEST_CODE static noinline void guest_handle_nested_amd_stgi() { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; asm volatile("stgi" ::: "memory"); } GUEST_CODE static noinline void guest_handle_nested_amd_clgi() { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; asm volatile("clgi" ::: "memory"); } GUEST_CODE static noinline void guest_handle_nested_amd_inject_event(struct api_call_5* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t vm_id = cmd->args[0]; uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint64_t vector = cmd->args[1] & 0xFF; uint64_t type = cmd->args[2] & 0x7; uint64_t error_code = cmd->args[3] & 0xFFFFFFFF; uint64_t flags = cmd->args[4]; uint64_t event_inj = vector; event_inj |= (type << 8); if (flags & 2) event_inj |= (1ULL << 11); if (flags & 1) event_inj |= (1ULL << 31); event_inj |= (error_code << 32); vmcb_write64(vmcb_addr, 0x60, event_inj); } GUEST_CODE static noinline void guest_handle_nested_amd_set_intercept(struct api_call_5* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t vm_id = cmd->args[0]; uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint64_t offset = cmd->args[1]; uint64_t bit_mask = cmd->args[2]; uint64_t action = cmd->args[3]; uint32_t current = vmcb_read32(vmcb_addr, (uint16_t)offset); if (action == 1) current |= (uint32_t)bit_mask; else current &= ~((uint32_t)bit_mask); vmcb_write32(vmcb_addr, (uint16_t)offset, current); } GUEST_CODE static noinline void guest_handle_nested_amd_vmload(struct api_call_1* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t vm_id = cmd->arg; uint64_t vmcb_pa = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); asm volatile("vmload %%rax" ::"a"(vmcb_pa) : "memory"); } GUEST_CODE static noinline void guest_handle_nested_amd_vmsave(struct api_call_1* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t vm_id = cmd->arg; uint64_t vmcb_pa = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); asm volatile("vmsave %%rax" ::"a"(vmcb_pa) : "memory"); } const char kvm_asm16_cpl3[] = "\x0f\x20\xc0\x66\x83\xc8\x01\x0f\x22\xc0\xb8\xa0\x00\x0f\x00\xd8\xb8\x2b\x00\x8e\xd8\x8e\xc0\x8e\xe0\x8e\xe8\xbc\x00\x01\xc7\x06\x00\x01\x1d\xba\xc7\x06\x02\x01\x23\x00\xc7\x06\x04\x01\x00\x01\xc7\x06\x06\x01\x2b\x00\xcb"; const char kvm_asm32_paged[] = "\x0f\x20\xc0\x0d\x00\x00\x00\x80\x0f\x22\xc0"; const char kvm_asm32_vm86[] = "\x66\xb8\xb8\x00\x0f\x00\xd8\xea\x00\x00\x00\x00\xd0\x00"; const char kvm_asm32_paged_vm86[] = "\x0f\x20\xc0\x0d\x00\x00\x00\x80\x0f\x22\xc0\x66\xb8\xb8\x00\x0f\x00\xd8\xea\x00\x00\x00\x00\xd0\x00"; const char kvm_asm64_enable_long[] = "\x0f\x20\xc0\x0d\x00\x00\x00\x80\x0f\x22\xc0\xea\xde\xc0\xad\x0b\x50\x00\x48\xc7\xc0\xd8\x00\x00\x00\x0f\x00\xd8"; const char kvm_asm64_init_vm[] = 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const char kvm_asm64_vm_exit[] = "\x48\xc7\xc3\x00\x44\x00\x00\x0f\x78\xda\x48\xc7\xc3\x02\x44\x00\x00\x0f\x78\xd9\x48\xc7\xc0\x00\x64\x00\x00\x0f\x78\xc0\x48\xc7\xc3\x1e\x68\x00\x00\x0f\x78\xdb\xf4"; const char kvm_asm64_cpl3[] = "\x0f\x20\xc0\x0d\x00\x00\x00\x80\x0f\x22\xc0\xea\xde\xc0\xad\x0b\x50\x00\x48\xc7\xc0\xd8\x00\x00\x00\x0f\x00\xd8\x48\xc7\xc0\x6b\x00\x00\x00\x8e\xd8\x8e\xc0\x8e\xe0\x8e\xe8\x48\xc7\xc4\x80\x0f\x00\x00\x48\xc7\x04\x24\x1d\xba\x00\x00\x48\xc7\x44\x24\x04\x63\x00\x00\x00\x48\xc7\x44\x24\x08\x80\x0f\x00\x00\x48\xc7\x44\x24\x0c\x6b\x00\x00\x00\xcb"; #define KVM_SMI _IO(KVMIO, 0xb7) struct tss16 { uint16_t prev; uint16_t sp0; uint16_t ss0; uint16_t sp1; uint16_t ss1; uint16_t sp2; uint16_t ss2; uint16_t ip; uint16_t flags; uint16_t ax; uint16_t cx; uint16_t dx; uint16_t bx; uint16_t sp; uint16_t bp; uint16_t si; uint16_t di; uint16_t es; uint16_t cs; uint16_t ss; uint16_t ds; uint16_t ldt; } __attribute__((packed)); struct tss32 { uint16_t prev, prevh; uint32_t sp0; uint16_t ss0, ss0h; uint32_t sp1; uint16_t ss1, ss1h; uint32_t sp2; uint16_t ss2, ss2h; uint32_t cr3; uint32_t ip; uint32_t flags; uint32_t ax; uint32_t cx; uint32_t dx; uint32_t bx; uint32_t sp; uint32_t bp; uint32_t si; uint32_t di; uint16_t es, esh; uint16_t cs, csh; uint16_t ss, ssh; uint16_t ds, dsh; uint16_t fs, fsh; uint16_t gs, gsh; uint16_t ldt, ldth; uint16_t trace; uint16_t io_bitmap; } __attribute__((packed)); struct tss64 { uint32_t reserved0; uint64_t rsp[3]; uint64_t reserved1; uint64_t ist[7]; uint64_t reserved2; uint16_t reserved3; uint16_t io_bitmap; } __attribute__((packed)); static void fill_segment_descriptor(uint64_t* dt, uint64_t* lt, struct kvm_segment* seg) { uint16_t index = seg->selector >> 3; uint64_t limit = seg->g ? seg->limit >> 12 : seg->limit; uint64_t sd = (limit & 0xffff) | (seg->base & 0xffffff) << 16 | (uint64_t)seg->type << 40 | (uint64_t)seg->s << 44 | (uint64_t)seg->dpl << 45 | (uint64_t)seg->present << 47 | (limit & 0xf0000ULL) << 48 | (uint64_t)seg->avl << 52 | (uint64_t)seg->l << 53 | (uint64_t)seg->db << 54 | (uint64_t)seg->g << 55 | (seg->base & 0xff000000ULL) << 56; dt[index] = sd; lt[index] = sd; } static void fill_segment_descriptor_dword(uint64_t* dt, uint64_t* lt, struct kvm_segment* seg) { fill_segment_descriptor(dt, lt, seg); uint16_t index = seg->selector >> 3; dt[index + 1] = 0; lt[index + 1] = 0; } static void setup_syscall_msrs(int cpufd, uint16_t sel_cs, uint16_t sel_cs_cpl3) { char buf[sizeof(struct kvm_msrs) + 5 * sizeof(struct kvm_msr_entry)]; memset(buf, 0, sizeof(buf)); struct kvm_msrs* msrs = (struct kvm_msrs*)buf; struct kvm_msr_entry* entries = msrs->entries; msrs->nmsrs = 5; entries[0].index = X86_MSR_IA32_SYSENTER_CS; entries[0].data = sel_cs; entries[1].index = X86_MSR_IA32_SYSENTER_ESP; entries[1].data = X86_ADDR_STACK0; entries[2].index = X86_MSR_IA32_SYSENTER_EIP; entries[2].data = X86_ADDR_VAR_SYSEXIT; entries[3].index = X86_MSR_IA32_STAR; entries[3].data = ((uint64_t)sel_cs << 32) | ((uint64_t)sel_cs_cpl3 << 48); entries[4].index = X86_MSR_IA32_LSTAR; entries[4].data = X86_ADDR_VAR_SYSRET; ioctl(cpufd, KVM_SET_MSRS, msrs); } static void setup_32bit_idt(struct kvm_sregs* sregs, char* host_mem, uintptr_t guest_mem) { sregs->idt.base = guest_mem + X86_ADDR_VAR_IDT; sregs->idt.limit = 0x1ff; uint64_t* idt = (uint64_t*)(host_mem + sregs->idt.base); for (int i = 0; i < 32; i++) { struct kvm_segment gate; gate.selector = i << 3; switch (i % 6) { case 0: gate.type = 6; gate.base = X86_SEL_CS16; break; case 1: gate.type = 7; gate.base = X86_SEL_CS16; break; case 2: gate.type = 3; gate.base = X86_SEL_TGATE16; break; case 3: gate.type = 14; gate.base = X86_SEL_CS32; break; case 4: gate.type = 15; gate.base = X86_SEL_CS32; break; case 5: gate.type = 11; gate.base = X86_SEL_TGATE32; break; } gate.limit = guest_mem + X86_ADDR_VAR_USER_CODE2; gate.present = 1; gate.dpl = 0; gate.s = 0; gate.g = 0; gate.db = 0; gate.l = 0; gate.avl = 0; fill_segment_descriptor(idt, idt, &gate); } } static void setup_64bit_idt(struct kvm_sregs* sregs, char* host_mem, uintptr_t guest_mem) { sregs->idt.base = guest_mem + X86_ADDR_VAR_IDT; sregs->idt.limit = 0x1ff; uint64_t* idt = (uint64_t*)(host_mem + sregs->idt.base); for (int i = 0; i < 32; i++) { struct kvm_segment gate; gate.selector = (i * 2) << 3; gate.type = (i & 1) ? 14 : 15; gate.base = X86_SEL_CS64; gate.limit = guest_mem + X86_ADDR_VAR_USER_CODE2; gate.present = 1; gate.dpl = 0; gate.s = 0; gate.g = 0; gate.db = 0; gate.l = 0; gate.avl = 0; fill_segment_descriptor_dword(idt, idt, &gate); } } #define MEM_REGION_FLAG_USER_CODE (1 << 0) #define MEM_REGION_FLAG_DIRTY_LOG (1 << 1) #define MEM_REGION_FLAG_READONLY (1 << 2) #define MEM_REGION_FLAG_EXECUTOR_CODE (1 << 3) #define MEM_REGION_FLAG_GPA0 (1 << 5) #define MEM_REGION_FLAG_NO_HOST_MEM (1 << 6) struct mem_region { uint64_t gpa; int pages; uint32_t flags; }; static const struct mem_region syzos_mem_regions[] = { {X86_SYZOS_ADDR_ZERO, 48, MEM_REGION_FLAG_GPA0}, {X86_SYZOS_ADDR_SMRAM, 10, 0}, {X86_SYZOS_ADDR_EXIT, 1, MEM_REGION_FLAG_NO_HOST_MEM}, {X86_SYZOS_ADDR_DIRTY_PAGES, 2, MEM_REGION_FLAG_DIRTY_LOG}, {X86_SYZOS_ADDR_USER_CODE, KVM_MAX_VCPU, MEM_REGION_FLAG_READONLY | MEM_REGION_FLAG_USER_CODE}, {SYZOS_ADDR_EXECUTOR_CODE, 4, MEM_REGION_FLAG_READONLY | MEM_REGION_FLAG_EXECUTOR_CODE}, {X86_SYZOS_ADDR_SCRATCH_CODE, 1, 0}, {X86_SYZOS_ADDR_STACK_BOTTOM, 1, 0}, {X86_SYZOS_PER_VCPU_REGIONS_BASE, (KVM_MAX_VCPU * X86_SYZOS_L1_VCPU_REGION_SIZE) / KVM_PAGE_SIZE, 0}, {X86_SYZOS_ADDR_IOAPIC, 1, 0}, }; struct kvm_syz_vm { int vmfd; int next_cpu_id; void* host_mem; size_t total_pages; void* user_text; void* gpa0_mem; }; #define X86_NUM_IDT_ENTRIES 256 static void syzos_setup_idt(struct kvm_syz_vm* vm, struct kvm_sregs* sregs) { sregs->idt.base = X86_SYZOS_ADDR_VAR_IDT; sregs->idt.limit = (X86_NUM_IDT_ENTRIES * sizeof(struct idt_entry_64)) - 1; volatile struct idt_entry_64* idt = (volatile struct idt_entry_64*)((uint64_t)vm->host_mem + sregs->idt.base); uint64_t handler_addr = executor_fn_guest_addr(dummy_null_handler); for (int i = 0; i < X86_NUM_IDT_ENTRIES; i++) { idt[i].offset_low = (uint16_t)(handler_addr & 0xFFFF); idt[i].selector = X86_SYZOS_SEL_CODE; idt[i].ist = 0; idt[i].type_attr = 0x8E; idt[i].offset_mid = (uint16_t)((handler_addr >> 16) & 0xFFFF); idt[i].offset_high = (uint32_t)((handler_addr >> 32) & 0xFFFFFFFF); idt[i].reserved = 0; } } struct kvm_text { uintptr_t typ; const void* text; uintptr_t size; }; struct kvm_opt { uint64_t typ; uint64_t val; }; #define PAGE_MASK GENMASK_ULL(51, 12) typedef struct { uint64_t next_page; uint64_t last_page; } page_alloc_t; static uint64_t pg_alloc(page_alloc_t* alloc) { if (alloc->next_page >= alloc->last_page) exit(1); uint64_t page = alloc->next_page; alloc->next_page += KVM_PAGE_SIZE; return page; } static void map_4k_page(uint64_t host_mem, page_alloc_t* alloc, uint64_t gpa) { uint64_t* pml4 = (uint64_t*)(host_mem + X86_SYZOS_ADDR_PML4); uint64_t pml4_idx = (gpa >> 39) & 0x1FF; if (pml4[pml4_idx] == 0) pml4[pml4_idx] = X86_PDE64_PRESENT | X86_PDE64_RW | pg_alloc(alloc); uint64_t* pdpt = (uint64_t*)(host_mem + (pml4[pml4_idx] & PAGE_MASK)); uint64_t pdpt_idx = (gpa >> 30) & 0x1FF; if (pdpt[pdpt_idx] == 0) pdpt[pdpt_idx] = X86_PDE64_PRESENT | X86_PDE64_RW | pg_alloc(alloc); uint64_t* pd = (uint64_t*)(host_mem + (pdpt[pdpt_idx] & PAGE_MASK)); uint64_t pd_idx = (gpa >> 21) & 0x1FF; if (pd[pd_idx] == 0) pd[pd_idx] = X86_PDE64_PRESENT | X86_PDE64_RW | pg_alloc(alloc); uint64_t* pt = (uint64_t*)(host_mem + (pd[pd_idx] & PAGE_MASK)); uint64_t pt_idx = (gpa >> 12) & 0x1FF; pt[pt_idx] = (gpa & PAGE_MASK) | X86_PDE64_PRESENT | X86_PDE64_RW; } static int map_4k_region(uint64_t host_mem, page_alloc_t* alloc, uint64_t gpa_start, int num_pages) { for (int i = 0; i < num_pages; i++) map_4k_page(host_mem, alloc, gpa_start + (i * KVM_PAGE_SIZE)); return num_pages; } static void setup_pg_table(struct kvm_syz_vm* vm) { int total = vm->total_pages; uint64_t host_mem = (uint64_t)vm->gpa0_mem; page_alloc_t alloc = {.next_page = X86_SYZOS_ADDR_PT_POOL, .last_page = X86_SYZOS_ADDR_PT_POOL + 32 * KVM_PAGE_SIZE}; for (uint64_t i = 0; i < (alloc.last_page - alloc.next_page); i += KVM_PAGE_SIZE) memset((void*)(host_mem + alloc.next_page + i), 0, KVM_PAGE_SIZE); for (size_t i = 0; i < sizeof(syzos_mem_regions) / sizeof(syzos_mem_regions[0]); i++) total -= map_4k_region(host_mem, &alloc, syzos_mem_regions[i].gpa, syzos_mem_regions[i].pages); map_4k_region(host_mem, &alloc, X86_SYZOS_ADDR_UNUSED, total); } struct gdt_entry { uint16_t limit_low; uint16_t base_low; uint8_t base_mid; uint8_t access; uint8_t limit_high_and_flags; uint8_t base_high; } __attribute__((packed)); static void setup_gdt_64(struct gdt_entry* gdt) { gdt[0] = (struct gdt_entry){0}; gdt[X86_SYZOS_SEL_CODE >> 3] = (struct gdt_entry){ .limit_low = 0xFFFF, .base_low = 0, .base_mid = 0, .access = 0x9A, .limit_high_and_flags = 0xAF, .base_high = 0}; gdt[X86_SYZOS_SEL_DATA >> 3] = (struct gdt_entry){ .limit_low = 0xFFFF, .base_low = (uint16_t)(X86_SYZOS_ADDR_VAR_TSS & 0xFFFF), .base_mid = (uint8_t)((X86_SYZOS_ADDR_VAR_TSS >> 16) & 0xFF), .access = 0x92, .limit_high_and_flags = 0xCF, .base_high = (uint8_t)((X86_SYZOS_ADDR_VAR_TSS >> 24) & 0xFF)}; gdt[X86_SYZOS_SEL_TSS64 >> 3] = (struct gdt_entry){ .limit_low = 0x67, .base_low = 0, .base_mid = 0, .access = 0x89, .limit_high_and_flags = 0x00, .base_high = 0}; } static void setup_gdt_ldt_pg(struct kvm_syz_vm* vm, int cpufd) { struct kvm_sregs sregs; ioctl(cpufd, KVM_GET_SREGS, &sregs); sregs.gdt.base = X86_SYZOS_ADDR_GDT; sregs.gdt.limit = 5 * sizeof(struct gdt_entry) - 1; struct gdt_entry* gdt = (struct gdt_entry*)((uint64_t)vm->host_mem + sregs.gdt.base); struct kvm_segment seg_cs64; memset(&seg_cs64, 0, sizeof(seg_cs64)); seg_cs64.selector = X86_SYZOS_SEL_CODE; seg_cs64.type = 11; seg_cs64.base = 0; seg_cs64.limit = 0xFFFFFFFFu; seg_cs64.present = 1; seg_cs64.s = 1; seg_cs64.g = 1; seg_cs64.l = 1; sregs.cs = seg_cs64; struct kvm_segment seg_ds64; memset(&seg_ds64, 0, sizeof(struct kvm_segment)); seg_ds64.selector = X86_SYZOS_SEL_DATA; seg_ds64.type = 3; seg_ds64.limit = 0xFFFFFFFFu; seg_ds64.present = 1; seg_ds64.s = 1; seg_ds64.g = 1; seg_ds64.db = 1; sregs.ds = seg_ds64; sregs.es = seg_ds64; sregs.fs = seg_ds64; sregs.gs = seg_ds64; sregs.ss = seg_ds64; struct kvm_segment seg_tr; memset(&seg_tr, 0, sizeof(seg_tr)); seg_tr.selector = X86_SYZOS_SEL_TSS64; seg_tr.type = 11; seg_tr.base = X86_SYZOS_ADDR_VAR_TSS; seg_tr.limit = 0x67; seg_tr.present = 1; seg_tr.s = 0; sregs.tr = seg_tr; volatile uint8_t* l1_tss = (volatile uint8_t*)((uint64_t)vm->host_mem + X86_SYZOS_ADDR_VAR_TSS); memset((void*)l1_tss, 0, 104); *(volatile uint64_t*)(l1_tss + 4) = X86_SYZOS_ADDR_STACK0; setup_gdt_64(gdt); syzos_setup_idt(vm, &sregs); setup_pg_table(vm); sregs.cr0 = X86_CR0_PE | X86_CR0_NE | X86_CR0_PG; sregs.cr4 |= X86_CR4_PAE | X86_CR4_OSFXSR; sregs.efer |= (X86_EFER_LME | X86_EFER_LMA | X86_EFER_NXE); sregs.cr3 = X86_ADDR_PML4; ioctl(cpufd, KVM_SET_SREGS, &sregs); } static void setup_cpuid(int cpufd) { int kvmfd = open("/dev/kvm", O_RDWR); char buf[sizeof(struct kvm_cpuid2) + 128 * sizeof(struct kvm_cpuid_entry2)]; memset(buf, 0, sizeof(buf)); struct kvm_cpuid2* cpuid = (struct kvm_cpuid2*)buf; cpuid->nent = 128; ioctl(kvmfd, KVM_GET_SUPPORTED_CPUID, cpuid); ioctl(cpufd, KVM_SET_CPUID2, cpuid); close(kvmfd); } #define KVM_SETUP_PAGING (1 << 0) #define KVM_SETUP_PAE (1 << 1) #define KVM_SETUP_PROTECTED (1 << 2) #define KVM_SETUP_CPL3 (1 << 3) #define KVM_SETUP_VIRT86 (1 << 4) #define KVM_SETUP_SMM (1 << 5) #define KVM_SETUP_VM (1 << 6) static volatile long syz_kvm_setup_cpu(volatile long a0, volatile long a1, volatile long a2, volatile long a3, volatile long a4, volatile long a5, volatile long a6, volatile long a7) { const int vmfd = a0; const int cpufd = a1; char* const host_mem = (char*)a2; const struct kvm_text* const text_array_ptr = (struct kvm_text*)a3; const uintptr_t text_count = a4; const uintptr_t flags = a5; const struct kvm_opt* const opt_array_ptr = (struct kvm_opt*)a6; uintptr_t opt_count = a7; const uintptr_t page_size = 4 << 10; const uintptr_t ioapic_page = 10; const uintptr_t guest_mem_size = 24 * page_size; const uintptr_t guest_mem = 0; (void)text_count; int text_type = text_array_ptr[0].typ; const void* text = text_array_ptr[0].text; uintptr_t text_size = text_array_ptr[0].size; for (uintptr_t i = 0; i < guest_mem_size / page_size; i++) { struct kvm_userspace_memory_region memreg; memreg.slot = i; memreg.flags = 0; memreg.guest_phys_addr = guest_mem + i * page_size; if (i == ioapic_page) memreg.guest_phys_addr = 0xfec00000; memreg.memory_size = page_size; memreg.userspace_addr = (uintptr_t)host_mem + i * page_size; ioctl(vmfd, KVM_SET_USER_MEMORY_REGION, &memreg); } struct kvm_userspace_memory_region memreg; memreg.slot = 1 + (1 << 16); memreg.flags = 0; memreg.guest_phys_addr = 0x30000; memreg.memory_size = 64 << 10; memreg.userspace_addr = (uintptr_t)host_mem; ioctl(vmfd, KVM_SET_USER_MEMORY_REGION, &memreg); struct kvm_sregs sregs; if (ioctl(cpufd, KVM_GET_SREGS, &sregs)) return -1; struct kvm_regs regs; memset(®s, 0, sizeof(regs)); regs.rip = guest_mem + X86_ADDR_TEXT; regs.rsp = X86_ADDR_STACK0; sregs.gdt.base = guest_mem + X86_ADDR_GDT; sregs.gdt.limit = 256 * sizeof(uint64_t) - 1; uint64_t* gdt = (uint64_t*)(host_mem + sregs.gdt.base); struct kvm_segment seg_ldt; memset(&seg_ldt, 0, sizeof(seg_ldt)); seg_ldt.selector = X86_SEL_LDT; seg_ldt.type = 2; seg_ldt.base = guest_mem + X86_ADDR_LDT; seg_ldt.limit = 256 * sizeof(uint64_t) - 1; seg_ldt.present = 1; seg_ldt.dpl = 0; seg_ldt.s = 0; seg_ldt.g = 0; seg_ldt.db = 1; seg_ldt.l = 0; sregs.ldt = seg_ldt; uint64_t* ldt = (uint64_t*)(host_mem + sregs.ldt.base); struct kvm_segment seg_cs16; memset(&seg_cs16, 0, sizeof(seg_cs16)); seg_cs16.selector = X86_SEL_CS16; seg_cs16.type = 11; seg_cs16.base = 0; seg_cs16.limit = 0xfffff; seg_cs16.present = 1; seg_cs16.dpl = 0; seg_cs16.s = 1; seg_cs16.g = 0; seg_cs16.db = 0; seg_cs16.l = 0; struct kvm_segment seg_ds16 = seg_cs16; seg_ds16.selector = X86_SEL_DS16; seg_ds16.type = 3; struct kvm_segment seg_cs16_cpl3 = seg_cs16; seg_cs16_cpl3.selector = X86_SEL_CS16_CPL3; seg_cs16_cpl3.dpl = 3; struct kvm_segment seg_ds16_cpl3 = seg_ds16; seg_ds16_cpl3.selector = X86_SEL_DS16_CPL3; seg_ds16_cpl3.dpl = 3; struct kvm_segment seg_cs32 = seg_cs16; seg_cs32.selector = X86_SEL_CS32; seg_cs32.db = 1; struct kvm_segment seg_ds32 = seg_ds16; seg_ds32.selector = X86_SEL_DS32; seg_ds32.db = 1; struct kvm_segment seg_cs32_cpl3 = seg_cs32; seg_cs32_cpl3.selector = X86_SEL_CS32_CPL3; seg_cs32_cpl3.dpl = 3; struct kvm_segment seg_ds32_cpl3 = seg_ds32; seg_ds32_cpl3.selector = X86_SEL_DS32_CPL3; seg_ds32_cpl3.dpl = 3; struct kvm_segment seg_cs64 = seg_cs16; seg_cs64.selector = X86_SEL_CS64; seg_cs64.l = 1; struct kvm_segment seg_ds64 = seg_ds32; seg_ds64.selector = X86_SEL_DS64; struct kvm_segment seg_cs64_cpl3 = seg_cs64; seg_cs64_cpl3.selector = X86_SEL_CS64_CPL3; seg_cs64_cpl3.dpl = 3; struct kvm_segment seg_ds64_cpl3 = seg_ds64; seg_ds64_cpl3.selector = X86_SEL_DS64_CPL3; seg_ds64_cpl3.dpl = 3; struct kvm_segment seg_tss32; memset(&seg_tss32, 0, sizeof(seg_tss32)); seg_tss32.selector = X86_SEL_TSS32; seg_tss32.type = 9; seg_tss32.base = X86_ADDR_VAR_TSS32; seg_tss32.limit = 0x1ff; seg_tss32.present = 1; seg_tss32.dpl = 0; seg_tss32.s = 0; seg_tss32.g = 0; seg_tss32.db = 0; seg_tss32.l = 0; struct kvm_segment seg_tss32_2 = seg_tss32; seg_tss32_2.selector = X86_SEL_TSS32_2; seg_tss32_2.base = X86_ADDR_VAR_TSS32_2; struct kvm_segment seg_tss32_cpl3 = seg_tss32; seg_tss32_cpl3.selector = X86_SEL_TSS32_CPL3; seg_tss32_cpl3.base = X86_ADDR_VAR_TSS32_CPL3; struct kvm_segment seg_tss32_vm86 = seg_tss32; seg_tss32_vm86.selector = X86_SEL_TSS32_VM86; seg_tss32_vm86.base = X86_ADDR_VAR_TSS32_VM86; struct kvm_segment seg_tss16 = seg_tss32; seg_tss16.selector = X86_SEL_TSS16; seg_tss16.base = X86_ADDR_VAR_TSS16; seg_tss16.limit = 0xff; seg_tss16.type = 1; struct kvm_segment seg_tss16_2 = seg_tss16; seg_tss16_2.selector = X86_SEL_TSS16_2; seg_tss16_2.base = X86_ADDR_VAR_TSS16_2; seg_tss16_2.dpl = 0; struct kvm_segment seg_tss16_cpl3 = seg_tss16; seg_tss16_cpl3.selector = X86_SEL_TSS16_CPL3; seg_tss16_cpl3.base = X86_ADDR_VAR_TSS16_CPL3; seg_tss16_cpl3.dpl = 3; struct kvm_segment seg_tss64 = seg_tss32; seg_tss64.selector = X86_SEL_TSS64; seg_tss64.base = X86_ADDR_VAR_TSS64; seg_tss64.limit = 0x1ff; struct kvm_segment seg_tss64_cpl3 = seg_tss64; seg_tss64_cpl3.selector = X86_SEL_TSS64_CPL3; seg_tss64_cpl3.base = X86_ADDR_VAR_TSS64_CPL3; seg_tss64_cpl3.dpl = 3; struct kvm_segment seg_cgate16; memset(&seg_cgate16, 0, sizeof(seg_cgate16)); seg_cgate16.selector = X86_SEL_CGATE16; seg_cgate16.type = 4; seg_cgate16.base = X86_SEL_CS16 | (2 << 16); seg_cgate16.limit = X86_ADDR_VAR_USER_CODE2; seg_cgate16.present = 1; seg_cgate16.dpl = 0; seg_cgate16.s = 0; seg_cgate16.g = 0; seg_cgate16.db = 0; seg_cgate16.l = 0; seg_cgate16.avl = 0; struct kvm_segment seg_tgate16 = seg_cgate16; seg_tgate16.selector = X86_SEL_TGATE16; seg_tgate16.type = 3; seg_cgate16.base = X86_SEL_TSS16_2; seg_tgate16.limit = 0; struct kvm_segment seg_cgate32 = seg_cgate16; seg_cgate32.selector = X86_SEL_CGATE32; seg_cgate32.type = 12; seg_cgate32.base = X86_SEL_CS32 | (2 << 16); struct kvm_segment seg_tgate32 = seg_cgate32; seg_tgate32.selector = X86_SEL_TGATE32; seg_tgate32.type = 11; seg_tgate32.base = X86_SEL_TSS32_2; seg_tgate32.limit = 0; struct kvm_segment seg_cgate64 = seg_cgate16; seg_cgate64.selector = X86_SEL_CGATE64; seg_cgate64.type = 12; seg_cgate64.base = X86_SEL_CS64; int kvmfd = open("/dev/kvm", O_RDWR); char buf[sizeof(struct kvm_cpuid2) + 128 * sizeof(struct kvm_cpuid_entry2)]; memset(buf, 0, sizeof(buf)); struct kvm_cpuid2* cpuid = (struct kvm_cpuid2*)buf; cpuid->nent = 128; ioctl(kvmfd, KVM_GET_SUPPORTED_CPUID, cpuid); ioctl(cpufd, KVM_SET_CPUID2, cpuid); close(kvmfd); const char* text_prefix = 0; int text_prefix_size = 0; char* host_text = host_mem + X86_ADDR_TEXT; if (text_type == 8) { if (flags & KVM_SETUP_SMM) { if (flags & KVM_SETUP_PROTECTED) { sregs.cs = seg_cs16; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds16; sregs.cr0 |= X86_CR0_PE; } else { sregs.cs.selector = 0; sregs.cs.base = 0; } *(host_mem + X86_ADDR_TEXT) = 0xf4; host_text = host_mem + 0x8000; ioctl(cpufd, KVM_SMI, 0); } else if (flags & KVM_SETUP_VIRT86) { sregs.cs = seg_cs32; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32; sregs.cr0 |= X86_CR0_PE; sregs.efer |= X86_EFER_SCE; setup_syscall_msrs(cpufd, X86_SEL_CS32, X86_SEL_CS32_CPL3); setup_32bit_idt(&sregs, host_mem, guest_mem); if (flags & KVM_SETUP_PAGING) { uint64_t pd_addr = guest_mem + X86_ADDR_PD; uint64_t* pd = (uint64_t*)(host_mem + X86_ADDR_PD); pd[0] = X86_PDE32_PRESENT | X86_PDE32_RW | X86_PDE32_USER | X86_PDE32_PS; sregs.cr3 = pd_addr; sregs.cr4 |= X86_CR4_PSE; text_prefix = kvm_asm32_paged_vm86; text_prefix_size = sizeof(kvm_asm32_paged_vm86) - 1; } else { text_prefix = kvm_asm32_vm86; text_prefix_size = sizeof(kvm_asm32_vm86) - 1; } } else { sregs.cs.selector = 0; sregs.cs.base = 0; } } else if (text_type == 16) { if (flags & KVM_SETUP_CPL3) { sregs.cs = seg_cs16; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds16; text_prefix = kvm_asm16_cpl3; text_prefix_size = sizeof(kvm_asm16_cpl3) - 1; } else { sregs.cr0 |= X86_CR0_PE; sregs.cs = seg_cs16; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds16; } } else if (text_type == 32) { sregs.cr0 |= X86_CR0_PE; sregs.efer |= X86_EFER_SCE; setup_syscall_msrs(cpufd, X86_SEL_CS32, X86_SEL_CS32_CPL3); setup_32bit_idt(&sregs, host_mem, guest_mem); if (flags & KVM_SETUP_SMM) { sregs.cs = seg_cs32; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32; *(host_mem + X86_ADDR_TEXT) = 0xf4; host_text = host_mem + 0x8000; ioctl(cpufd, KVM_SMI, 0); } else if (flags & KVM_SETUP_PAGING) { sregs.cs = seg_cs32; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32; uint64_t pd_addr = guest_mem + X86_ADDR_PD; uint64_t* pd = (uint64_t*)(host_mem + X86_ADDR_PD); pd[0] = X86_PDE32_PRESENT | X86_PDE32_RW | X86_PDE32_USER | X86_PDE32_PS; sregs.cr3 = pd_addr; sregs.cr4 |= X86_CR4_PSE; text_prefix = kvm_asm32_paged; text_prefix_size = sizeof(kvm_asm32_paged) - 1; } else if (flags & KVM_SETUP_CPL3) { sregs.cs = seg_cs32_cpl3; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32_cpl3; } else { sregs.cs = seg_cs32; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32; } } else { sregs.efer |= X86_EFER_LME | X86_EFER_SCE; sregs.cr0 |= X86_CR0_PE; setup_syscall_msrs(cpufd, X86_SEL_CS64, X86_SEL_CS64_CPL3); setup_64bit_idt(&sregs, host_mem, guest_mem); sregs.cs = seg_cs32; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32; uint64_t pml4_addr = guest_mem + X86_ADDR_PML4; uint64_t* pml4 = (uint64_t*)(host_mem + X86_ADDR_PML4); uint64_t pdpt_addr = guest_mem + X86_ADDR_PDP; uint64_t* pdpt = (uint64_t*)(host_mem + X86_ADDR_PDP); uint64_t pd_addr = guest_mem + X86_ADDR_PD; uint64_t* pd = (uint64_t*)(host_mem + X86_ADDR_PD); pml4[0] = X86_PDE64_PRESENT | X86_PDE64_RW | X86_PDE64_USER | pdpt_addr; pdpt[0] = X86_PDE64_PRESENT | X86_PDE64_RW | X86_PDE64_USER | pd_addr; pd[0] = X86_PDE64_PRESENT | X86_PDE64_RW | X86_PDE64_USER | X86_PDE64_PS; sregs.cr3 = pml4_addr; sregs.cr4 |= X86_CR4_PAE; if (flags & KVM_SETUP_VM) { sregs.cr0 |= X86_CR0_NE; *((uint64_t*)(host_mem + X86_ADDR_VAR_VMXON_PTR)) = X86_ADDR_VAR_VMXON; *((uint64_t*)(host_mem + X86_ADDR_VAR_VMCS_PTR)) = X86_ADDR_VAR_VMCS; memcpy(host_mem + X86_ADDR_VAR_VMEXIT_CODE, kvm_asm64_vm_exit, sizeof(kvm_asm64_vm_exit) - 1); *((uint64_t*)(host_mem + X86_ADDR_VAR_VMEXIT_PTR)) = X86_ADDR_VAR_VMEXIT_CODE; text_prefix = kvm_asm64_init_vm; text_prefix_size = sizeof(kvm_asm64_init_vm) - 1; } else if (flags & KVM_SETUP_CPL3) { text_prefix = kvm_asm64_cpl3; text_prefix_size = sizeof(kvm_asm64_cpl3) - 1; } else { text_prefix = kvm_asm64_enable_long; text_prefix_size = sizeof(kvm_asm64_enable_long) - 1; } } struct tss16 tss16; memset(&tss16, 0, sizeof(tss16)); tss16.ss0 = tss16.ss1 = tss16.ss2 = X86_SEL_DS16; tss16.sp0 = tss16.sp1 = tss16.sp2 = X86_ADDR_STACK0; tss16.ip = X86_ADDR_VAR_USER_CODE2; tss16.flags = (1 << 1); tss16.cs = X86_SEL_CS16; tss16.es = tss16.ds = tss16.ss = X86_SEL_DS16; tss16.ldt = X86_SEL_LDT; struct tss16* tss16_addr = (struct tss16*)(host_mem + seg_tss16_2.base); memcpy(tss16_addr, &tss16, sizeof(tss16)); memset(&tss16, 0, sizeof(tss16)); tss16.ss0 = tss16.ss1 = tss16.ss2 = X86_SEL_DS16; tss16.sp0 = tss16.sp1 = tss16.sp2 = X86_ADDR_STACK0; tss16.ip = X86_ADDR_VAR_USER_CODE2; tss16.flags = (1 << 1); tss16.cs = X86_SEL_CS16_CPL3; tss16.es = tss16.ds = tss16.ss = X86_SEL_DS16_CPL3; tss16.ldt = X86_SEL_LDT; struct tss16* tss16_cpl3_addr = (struct tss16*)(host_mem + seg_tss16_cpl3.base); memcpy(tss16_cpl3_addr, &tss16, sizeof(tss16)); struct tss32 tss32; memset(&tss32, 0, sizeof(tss32)); tss32.ss0 = tss32.ss1 = tss32.ss2 = X86_SEL_DS32; tss32.sp0 = tss32.sp1 = tss32.sp2 = X86_ADDR_STACK0; tss32.ip = X86_ADDR_VAR_USER_CODE; tss32.flags = (1 << 1) | (1 << 17); tss32.ldt = X86_SEL_LDT; tss32.cr3 = sregs.cr3; tss32.io_bitmap = offsetof(struct tss32, io_bitmap); struct tss32* tss32_addr = (struct tss32*)(host_mem + seg_tss32_vm86.base); memcpy(tss32_addr, &tss32, sizeof(tss32)); memset(&tss32, 0, sizeof(tss32)); tss32.ss0 = tss32.ss1 = tss32.ss2 = X86_SEL_DS32; tss32.sp0 = tss32.sp1 = tss32.sp2 = X86_ADDR_STACK0; tss32.ip = X86_ADDR_VAR_USER_CODE; tss32.flags = (1 << 1); tss32.cr3 = sregs.cr3; tss32.es = tss32.ds = tss32.ss = tss32.gs = tss32.fs = X86_SEL_DS32; tss32.cs = X86_SEL_CS32; tss32.ldt = X86_SEL_LDT; tss32.cr3 = sregs.cr3; tss32.io_bitmap = offsetof(struct tss32, io_bitmap); struct tss32* tss32_cpl3_addr = (struct tss32*)(host_mem + seg_tss32_2.base); memcpy(tss32_cpl3_addr, &tss32, sizeof(tss32)); struct tss64 tss64; memset(&tss64, 0, sizeof(tss64)); tss64.rsp[0] = X86_ADDR_STACK0; tss64.rsp[1] = X86_ADDR_STACK0; tss64.rsp[2] = X86_ADDR_STACK0; tss64.io_bitmap = offsetof(struct tss64, io_bitmap); struct tss64* tss64_addr = (struct tss64*)(host_mem + seg_tss64.base); memcpy(tss64_addr, &tss64, sizeof(tss64)); memset(&tss64, 0, sizeof(tss64)); tss64.rsp[0] = X86_ADDR_STACK0; tss64.rsp[1] = X86_ADDR_STACK0; tss64.rsp[2] = X86_ADDR_STACK0; tss64.io_bitmap = offsetof(struct tss64, io_bitmap); struct tss64* tss64_cpl3_addr = (struct tss64*)(host_mem + seg_tss64_cpl3.base); memcpy(tss64_cpl3_addr, &tss64, sizeof(tss64)); if (text_size > 1000) text_size = 1000; if (text_prefix) { memcpy(host_text, text_prefix, text_prefix_size); void* patch = memmem(host_text, text_prefix_size, "\xde\xc0\xad\x0b", 4); if (patch) *((uint32_t*)patch) = guest_mem + X86_ADDR_TEXT + ((char*)patch - host_text) + 6; uint16_t magic = X86_PREFIX_SIZE; patch = memmem(host_text, text_prefix_size, &magic, sizeof(magic)); if (patch) *((uint16_t*)patch) = guest_mem + X86_ADDR_TEXT + text_prefix_size; } memcpy((void*)(host_text + text_prefix_size), text, text_size); *(host_text + text_prefix_size + text_size) = 0xf4; memcpy(host_mem + X86_ADDR_VAR_USER_CODE, text, text_size); *(host_mem + X86_ADDR_VAR_USER_CODE + text_size) = 0xf4; *(host_mem + X86_ADDR_VAR_HLT) = 0xf4; memcpy(host_mem + X86_ADDR_VAR_SYSRET, "\x0f\x07\xf4", 3); memcpy(host_mem + X86_ADDR_VAR_SYSEXIT, "\x0f\x35\xf4", 3); *(uint64_t*)(host_mem + X86_ADDR_VAR_VMWRITE_FLD) = 0; *(uint64_t*)(host_mem + X86_ADDR_VAR_VMWRITE_VAL) = 0; if (opt_count > 2) opt_count = 2; for (uintptr_t i = 0; i < opt_count; i++) { uint64_t typ = opt_array_ptr[i].typ; uint64_t val = opt_array_ptr[i].val; switch (typ % 9) { case 0: sregs.cr0 ^= val & (X86_CR0_MP | X86_CR0_EM | X86_CR0_ET | X86_CR0_NE | X86_CR0_WP | X86_CR0_AM | X86_CR0_NW | X86_CR0_CD); break; case 1: sregs.cr4 ^= val & (X86_CR4_VME | X86_CR4_PVI | X86_CR4_TSD | X86_CR4_DE | X86_CR4_MCE | X86_CR4_PGE | X86_CR4_PCE | X86_CR4_OSFXSR | X86_CR4_OSXMMEXCPT | X86_CR4_UMIP | X86_CR4_VMXE | X86_CR4_SMXE | X86_CR4_FSGSBASE | X86_CR4_PCIDE | X86_CR4_OSXSAVE | X86_CR4_SMEP | X86_CR4_SMAP | X86_CR4_PKE); break; case 2: sregs.efer ^= val & (X86_EFER_SCE | X86_EFER_NXE | X86_EFER_SVME | X86_EFER_LMSLE | X86_EFER_FFXSR | X86_EFER_TCE); break; case 3: val &= ((1 << 8) | (1 << 9) | (1 << 10) | (1 << 12) | (1 << 13) | (1 << 14) | (1 << 15) | (1 << 18) | (1 << 19) | (1 << 20) | (1 << 21)); regs.rflags ^= val; tss16_addr->flags ^= val; tss16_cpl3_addr->flags ^= val; tss32_addr->flags ^= val; tss32_cpl3_addr->flags ^= val; break; case 4: seg_cs16.type = val & 0xf; seg_cs32.type = val & 0xf; seg_cs64.type = val & 0xf; break; case 5: seg_cs16_cpl3.type = val & 0xf; seg_cs32_cpl3.type = val & 0xf; seg_cs64_cpl3.type = val & 0xf; break; case 6: seg_ds16.type = val & 0xf; seg_ds32.type = val & 0xf; seg_ds64.type = val & 0xf; break; case 7: seg_ds16_cpl3.type = val & 0xf; seg_ds32_cpl3.type = val & 0xf; seg_ds64_cpl3.type = val & 0xf; break; case 8: *(uint64_t*)(host_mem + X86_ADDR_VAR_VMWRITE_FLD) = (val & 0xffff); *(uint64_t*)(host_mem + X86_ADDR_VAR_VMWRITE_VAL) = (val >> 16); break; default: exit(1); } } regs.rflags |= 2; fill_segment_descriptor(gdt, ldt, &seg_ldt); fill_segment_descriptor(gdt, ldt, &seg_cs16); fill_segment_descriptor(gdt, ldt, &seg_ds16); fill_segment_descriptor(gdt, ldt, &seg_cs16_cpl3); fill_segment_descriptor(gdt, ldt, &seg_ds16_cpl3); fill_segment_descriptor(gdt, ldt, &seg_cs32); fill_segment_descriptor(gdt, ldt, &seg_ds32); fill_segment_descriptor(gdt, ldt, &seg_cs32_cpl3); fill_segment_descriptor(gdt, ldt, &seg_ds32_cpl3); fill_segment_descriptor(gdt, ldt, &seg_cs64); fill_segment_descriptor(gdt, ldt, &seg_ds64); fill_segment_descriptor(gdt, ldt, &seg_cs64_cpl3); fill_segment_descriptor(gdt, ldt, &seg_ds64_cpl3); fill_segment_descriptor(gdt, ldt, &seg_tss32); fill_segment_descriptor(gdt, ldt, &seg_tss32_2); fill_segment_descriptor(gdt, ldt, &seg_tss32_cpl3); fill_segment_descriptor(gdt, ldt, &seg_tss32_vm86); fill_segment_descriptor(gdt, ldt, &seg_tss16); fill_segment_descriptor(gdt, ldt, &seg_tss16_2); fill_segment_descriptor(gdt, ldt, &seg_tss16_cpl3); fill_segment_descriptor_dword(gdt, ldt, &seg_tss64); fill_segment_descriptor_dword(gdt, ldt, &seg_tss64_cpl3); fill_segment_descriptor(gdt, ldt, &seg_cgate16); fill_segment_descriptor(gdt, ldt, &seg_tgate16); fill_segment_descriptor(gdt, ldt, &seg_cgate32); fill_segment_descriptor(gdt, ldt, &seg_tgate32); fill_segment_descriptor_dword(gdt, ldt, &seg_cgate64); if (ioctl(cpufd, KVM_SET_SREGS, &sregs)) return -1; if (ioctl(cpufd, KVM_SET_REGS, ®s)) return -1; return 0; } #define RFLAGS_1_BIT (1ULL << 1) #define RFLAGS_IF_BIT (1ULL << 9) static void reset_cpu_regs(int cpufd, int cpu_id, size_t text_size) { struct kvm_regs regs; memset(®s, 0, sizeof(regs)); regs.rflags |= RFLAGS_1_BIT | RFLAGS_IF_BIT; regs.rip = executor_fn_guest_addr(guest_main); regs.rsp = X86_SYZOS_ADDR_STACK0; regs.rdi = text_size; regs.rsi = cpu_id; ioctl(cpufd, KVM_SET_REGS, ®s); } static void install_user_code(struct kvm_syz_vm* vm, int cpufd, int cpu_id, const void* text, size_t text_size) { if ((cpu_id < 0) || (cpu_id >= KVM_MAX_VCPU)) return; if (text_size > KVM_PAGE_SIZE) text_size = KVM_PAGE_SIZE; void* target = (void*)((uint64_t)vm->user_text + (KVM_PAGE_SIZE * cpu_id)); memcpy(target, text, text_size); setup_gdt_ldt_pg(vm, cpufd); setup_cpuid(cpufd); reset_cpu_regs(cpufd, cpu_id, text_size); } struct addr_size { void* addr; size_t size; }; static struct addr_size alloc_guest_mem(struct addr_size* free, size_t size) { struct addr_size ret = {.addr = NULL, .size = 0}; if (free->size < size) return ret; ret.addr = free->addr; ret.size = size; free->addr = (void*)((char*)free->addr + size); free->size -= size; return ret; } static void vm_set_user_memory_region(int vmfd, uint32_t slot, uint32_t flags, uint64_t guest_phys_addr, uint64_t memory_size, uint64_t userspace_addr) { struct kvm_userspace_memory_region memreg; memreg.slot = slot; memreg.flags = flags; memreg.guest_phys_addr = guest_phys_addr; memreg.memory_size = memory_size; memreg.userspace_addr = userspace_addr; ioctl(vmfd, KVM_SET_USER_MEMORY_REGION, &memreg); } static void install_syzos_code(void* host_mem, size_t mem_size) { size_t size = (char*)&__stop_guest - (char*)&__start_guest; if (size > mem_size) exit(1); memcpy(host_mem, &__start_guest, size); } static void setup_vm(int vmfd, struct kvm_syz_vm* vm) { struct addr_size allocator = {.addr = vm->host_mem, .size = vm->total_pages * KVM_PAGE_SIZE}; int slot = 0; for (size_t i = 0; i < sizeof(syzos_mem_regions) / sizeof(syzos_mem_regions[0]); i++) { const struct mem_region* r = &syzos_mem_regions[i]; if (r->flags & MEM_REGION_FLAG_NO_HOST_MEM) continue; struct addr_size next = alloc_guest_mem(&allocator, r->pages * KVM_PAGE_SIZE); uint32_t flags = 0; if (r->flags & MEM_REGION_FLAG_DIRTY_LOG) flags |= KVM_MEM_LOG_DIRTY_PAGES; if (r->flags & MEM_REGION_FLAG_READONLY) flags |= KVM_MEM_READONLY; if (r->flags & MEM_REGION_FLAG_USER_CODE) vm->user_text = next.addr; if (r->flags & MEM_REGION_FLAG_GPA0) vm->gpa0_mem = next.addr; if (r->flags & MEM_REGION_FLAG_EXECUTOR_CODE) install_syzos_code(next.addr, next.size); vm_set_user_memory_region(vmfd, slot++, flags, r->gpa, next.size, (uintptr_t)next.addr); } struct addr_size next = alloc_guest_mem(&allocator, allocator.size); vm_set_user_memory_region(vmfd, slot++, 0, X86_SYZOS_ADDR_UNUSED, next.size, (uintptr_t)next.addr); } static long syz_kvm_setup_syzos_vm(volatile long a0, volatile long a1) { const int vmfd = a0; void* host_mem = (void*)a1; struct kvm_syz_vm* ret = (struct kvm_syz_vm*)host_mem; ret->host_mem = (void*)((uint64_t)host_mem + KVM_PAGE_SIZE); ret->total_pages = KVM_GUEST_PAGES - 1; setup_vm(vmfd, ret); ret->vmfd = vmfd; ret->next_cpu_id = 0; return (long)ret; } static long syz_kvm_add_vcpu(volatile long a0, volatile long a1) { struct kvm_syz_vm* vm = (struct kvm_syz_vm*)a0; struct kvm_text* utext = (struct kvm_text*)a1; const void* text = utext->text; size_t text_size = utext->size; if (!vm) { errno = EINVAL; return -1; } if (vm->next_cpu_id == KVM_MAX_VCPU) { errno = ENOMEM; return -1; } int cpu_id = vm->next_cpu_id; int cpufd = ioctl(vm->vmfd, KVM_CREATE_VCPU, cpu_id); if (cpufd == -1) return -1; vm->next_cpu_id++; install_user_code(vm, cpufd, cpu_id, text, text_size); return cpufd; } static void setup_gadgetfs(); static void setup_binderfs(); static void setup_fusectl(); static void sandbox_common_mount_tmpfs(void) { write_file("/proc/sys/fs/mount-max", "100000"); if (mkdir("./syz-tmp", 0777)) exit(1); if (mount("", "./syz-tmp", "tmpfs", 0, NULL)) exit(1); if (mkdir("./syz-tmp/newroot", 0777)) exit(1); if (mkdir("./syz-tmp/newroot/dev", 0700)) exit(1); unsigned bind_mount_flags = MS_BIND | MS_REC | MS_PRIVATE; if (mount("/dev", "./syz-tmp/newroot/dev", NULL, bind_mount_flags, NULL)) exit(1); if (mkdir("./syz-tmp/newroot/proc", 0700)) exit(1); if (mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL)) exit(1); if (mkdir("./syz-tmp/newroot/selinux", 0700)) exit(1); const char* selinux_path = "./syz-tmp/newroot/selinux"; if (mount("/selinux", selinux_path, NULL, bind_mount_flags, NULL)) { if (errno != ENOENT) exit(1); if (mount("/sys/fs/selinux", selinux_path, NULL, bind_mount_flags, NULL) && errno != ENOENT) exit(1); } if (mkdir("./syz-tmp/newroot/sys", 0700)) exit(1); if (mount("/sys", "./syz-tmp/newroot/sys", 0, bind_mount_flags, NULL)) exit(1); if (mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, bind_mount_flags, NULL) && errno != ENOENT) exit(1); if (mount("/sys/fs/smackfs", "./syz-tmp/newroot/sys/fs/smackfs", NULL, bind_mount_flags, NULL) && errno != ENOENT) exit(1); if (mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, bind_mount_flags, NULL) && errno != ENOENT) exit(1); if (mkdir("./syz-tmp/newroot/syz-inputs", 0700)) exit(1); if (mount("/syz-inputs", "./syz-tmp/newroot/syz-inputs", NULL, bind_mount_flags | MS_RDONLY, NULL) && errno != ENOENT) exit(1); if (mkdir("./syz-tmp/pivot", 0777)) exit(1); if (syscall(SYS_pivot_root, "./syz-tmp", "./syz-tmp/pivot")) { if (chdir("./syz-tmp")) exit(1); } else { if (chdir("/")) exit(1); if (umount2("./pivot", MNT_DETACH)) exit(1); } if (chroot("./newroot")) exit(1); if (chdir("/")) exit(1); setup_gadgetfs(); setup_binderfs(); setup_fusectl(); } static void setup_gadgetfs() { if (mkdir("/dev/gadgetfs", 0777)) { } if (mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL)) { } } static void setup_fusectl() { if (mount(0, "/sys/fs/fuse/connections", "fusectl", 0, 0)) { } } static void setup_binderfs() { if (mkdir("/dev/binderfs", 0777)) { } if (mount("binder", "/dev/binderfs", "binder", 0, NULL)) { } } static void loop(); static void sandbox_common() { prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0); if (getppid() == 1) exit(1); int netns = open("/proc/self/ns/net", O_RDONLY); if (netns == -1) exit(1); if (dup2(netns, kInitNetNsFd) < 0) exit(1); close(netns); struct rlimit rlim; rlim.rlim_cur = rlim.rlim_max = (200 << 20); setrlimit(RLIMIT_AS, &rlim); rlim.rlim_cur = rlim.rlim_max = 32 << 20; setrlimit(RLIMIT_MEMLOCK, &rlim); rlim.rlim_cur = rlim.rlim_max = 136 << 20; setrlimit(RLIMIT_FSIZE, &rlim); rlim.rlim_cur = rlim.rlim_max = 1 << 20; setrlimit(RLIMIT_STACK, &rlim); rlim.rlim_cur = rlim.rlim_max = 128 << 20; setrlimit(RLIMIT_CORE, &rlim); rlim.rlim_cur = rlim.rlim_max = 256; setrlimit(RLIMIT_NOFILE, &rlim); if (unshare(CLONE_NEWNS)) { } if (mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, NULL)) { } if (unshare(CLONE_NEWIPC)) { } if (unshare(0x02000000)) { } if (unshare(CLONE_NEWUTS)) { } if (unshare(CLONE_SYSVSEM)) { } typedef struct { const char* name; const char* value; } sysctl_t; static const sysctl_t sysctls[] = { {"/proc/sys/kernel/shmmax", "16777216"}, {"/proc/sys/kernel/shmall", "536870912"}, {"/proc/sys/kernel/shmmni", "1024"}, {"/proc/sys/kernel/msgmax", "8192"}, {"/proc/sys/kernel/msgmni", "1024"}, {"/proc/sys/kernel/msgmnb", "1024"}, {"/proc/sys/kernel/sem", "1024 1048576 500 1024"}, }; unsigned i; for (i = 0; i < sizeof(sysctls) / sizeof(sysctls[0]); i++) write_file(sysctls[i].name, sysctls[i].value); } static int wait_for_loop(int pid) { if (pid < 0) exit(1); int status = 0; while (waitpid(-1, &status, __WALL) != pid) { } return WEXITSTATUS(status); } static void drop_caps(void) { struct __user_cap_header_struct cap_hdr = {}; struct __user_cap_data_struct cap_data[2] = {}; cap_hdr.version = _LINUX_CAPABILITY_VERSION_3; cap_hdr.pid = getpid(); if (syscall(SYS_capget, &cap_hdr, &cap_data)) exit(1); const int drop = (1 << CAP_SYS_PTRACE) | (1 << CAP_SYS_NICE); cap_data[0].effective &= ~drop; cap_data[0].permitted &= ~drop; cap_data[0].inheritable &= ~drop; if (syscall(SYS_capset, &cap_hdr, &cap_data)) exit(1); } static int do_sandbox_none(void) { if (unshare(CLONE_NEWPID)) { } int pid = fork(); if (pid != 0) return wait_for_loop(pid); sandbox_common(); drop_caps(); if (unshare(CLONE_NEWNET)) { } write_file("/proc/sys/net/ipv4/ping_group_range", "0 65535"); sandbox_common_mount_tmpfs(); loop(); exit(1); } #define FS_IOC_SETFLAGS _IOW('f', 2, long) static void remove_dir(const char* dir) { int iter = 0; DIR* dp = 0; const int umount_flags = MNT_FORCE | UMOUNT_NOFOLLOW; retry: while (umount2(dir, umount_flags) == 0) { } dp = opendir(dir); if (dp == NULL) { if (errno == EMFILE) { exit(1); } exit(1); } struct dirent* ep = 0; while ((ep = readdir(dp))) { if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0) continue; char filename[FILENAME_MAX]; snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name); while (umount2(filename, umount_flags) == 0) { } struct stat st; if (lstat(filename, &st)) exit(1); if (S_ISDIR(st.st_mode)) { remove_dir(filename); continue; } int i; for (i = 0;; i++) { if (unlink(filename) == 0) break; if (errno == EPERM) { int fd = open(filename, O_RDONLY); if (fd != -1) { long flags = 0; if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) { } close(fd); continue; } } if (errno == EROFS) { break; } if (errno != EBUSY || i > 100) exit(1); if (umount2(filename, umount_flags)) exit(1); } } closedir(dp); for (int i = 0;; i++) { if (rmdir(dir) == 0) break; if (i < 100) { if (errno == EPERM) { int fd = open(dir, O_RDONLY); if (fd != -1) { long flags = 0; if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) { } close(fd); continue; } } if (errno == EROFS) { break; } if (errno == EBUSY) { if (umount2(dir, umount_flags)) exit(1); continue; } if (errno == ENOTEMPTY) { if (iter < 100) { iter++; goto retry; } } } exit(1); } } static int inject_fault(int nth) { int fd; fd = open("/proc/thread-self/fail-nth", O_RDWR); if (fd == -1) exit(1); char buf[16]; sprintf(buf, "%d", nth); if (write(fd, buf, strlen(buf)) != (ssize_t)strlen(buf)) exit(1); return fd; } static void kill_and_wait(int pid, int* status) { kill(-pid, SIGKILL); kill(pid, SIGKILL); for (int i = 0; i < 100; i++) { if (waitpid(-1, status, WNOHANG | __WALL) == pid) return; usleep(1000); } DIR* dir = opendir("/sys/fs/fuse/connections"); if (dir) { for (;;) { struct dirent* ent = readdir(dir); if (!ent) break; if (strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0) continue; char abort[300]; snprintf(abort, sizeof(abort), "/sys/fs/fuse/connections/%s/abort", ent->d_name); int fd = open(abort, O_WRONLY); if (fd == -1) { continue; } if (write(fd, abort, 1) < 0) { } close(fd); } closedir(dir); } else { } while (waitpid(-1, status, __WALL) != pid) { } } static void reset_loop() { char buf[64]; snprintf(buf, sizeof(buf), "/dev/loop%llu", procid); int loopfd = open(buf, O_RDWR); if (loopfd != -1) { ioctl(loopfd, LOOP_CLR_FD, 0); close(loopfd); } } static void setup_test() { prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0); setpgrp(); write_file("/proc/self/oom_score_adj", "1000"); if (symlink("/dev/binderfs", "./binderfs")) { } } static const char* setup_fault() { int fd = open("/proc/self/make-it-fail", O_WRONLY); if (fd == -1) return "CONFIG_FAULT_INJECTION is not enabled"; close(fd); fd = open("/proc/thread-self/fail-nth", O_WRONLY); if (fd == -1) return "kernel does not have systematic fault injection support"; close(fd); static struct { const char* file; const char* val; bool fatal; } files[] = { {"/sys/kernel/debug/failslab/ignore-gfp-wait", "N", true}, {"/sys/kernel/debug/fail_futex/ignore-private", "N", false}, {"/sys/kernel/debug/fail_page_alloc/ignore-gfp-highmem", "N", false}, {"/sys/kernel/debug/fail_page_alloc/ignore-gfp-wait", "N", false}, {"/sys/kernel/debug/fail_page_alloc/min-order", "0", false}, }; unsigned i; for (i = 0; i < sizeof(files) / sizeof(files[0]); i++) { if (!write_file(files[i].file, files[i].val)) { if (files[i].fatal) return "failed to write fault injection file"; } } return NULL; } static void setup_sysctl() { int cad_pid = fork(); if (cad_pid < 0) exit(1); if (cad_pid == 0) { for (;;) sleep(100); } char tmppid[32]; snprintf(tmppid, sizeof(tmppid), "%d", cad_pid); struct { const char* name; const char* data; } files[] = { {"/sys/kernel/debug/x86/nmi_longest_ns", "10000000000"}, {"/proc/sys/kernel/hung_task_check_interval_secs", "20"}, {"/proc/sys/net/core/bpf_jit_kallsyms", "1"}, {"/proc/sys/net/core/bpf_jit_harden", "0"}, {"/proc/sys/kernel/kptr_restrict", "0"}, {"/proc/sys/kernel/softlockup_all_cpu_backtrace", "1"}, {"/proc/sys/fs/mount-max", "100"}, {"/proc/sys/vm/oom_dump_tasks", "0"}, {"/proc/sys/debug/exception-trace", "0"}, {"/proc/sys/kernel/printk", "7 4 1 3"}, {"/proc/sys/kernel/keys/gc_delay", "1"}, {"/proc/sys/vm/oom_kill_allocating_task", "1"}, {"/proc/sys/kernel/ctrl-alt-del", "0"}, {"/proc/sys/kernel/cad_pid", tmppid}, }; for (size_t i = 0; i < sizeof(files) / sizeof(files[0]); i++) { if (!write_file(files[i].name, files[i].data)) { } } kill(cad_pid, SIGKILL); while (waitpid(cad_pid, NULL, 0) != cad_pid) ; } #define FUSE_MIN_READ_BUFFER 8192 enum fuse_opcode { FUSE_LOOKUP = 1, FUSE_FORGET = 2, FUSE_GETATTR = 3, FUSE_SETATTR = 4, FUSE_READLINK = 5, FUSE_SYMLINK = 6, FUSE_MKNOD = 8, FUSE_MKDIR = 9, FUSE_UNLINK = 10, FUSE_RMDIR = 11, FUSE_RENAME = 12, FUSE_LINK = 13, FUSE_OPEN = 14, FUSE_READ = 15, FUSE_WRITE = 16, FUSE_STATFS = 17, FUSE_RELEASE = 18, FUSE_FSYNC = 20, FUSE_SETXATTR = 21, FUSE_GETXATTR = 22, FUSE_LISTXATTR = 23, FUSE_REMOVEXATTR = 24, FUSE_FLUSH = 25, FUSE_INIT = 26, FUSE_OPENDIR = 27, FUSE_READDIR = 28, FUSE_RELEASEDIR = 29, FUSE_FSYNCDIR = 30, FUSE_GETLK = 31, FUSE_SETLK = 32, FUSE_SETLKW = 33, FUSE_ACCESS = 34, FUSE_CREATE = 35, FUSE_INTERRUPT = 36, FUSE_BMAP = 37, FUSE_DESTROY = 38, FUSE_IOCTL = 39, FUSE_POLL = 40, FUSE_NOTIFY_REPLY = 41, FUSE_BATCH_FORGET = 42, FUSE_FALLOCATE = 43, FUSE_READDIRPLUS = 44, FUSE_RENAME2 = 45, FUSE_LSEEK = 46, FUSE_COPY_FILE_RANGE = 47, FUSE_SETUPMAPPING = 48, FUSE_REMOVEMAPPING = 49, FUSE_SYNCFS = 50, FUSE_TMPFILE = 51, FUSE_STATX = 52, CUSE_INIT = 4096, CUSE_INIT_BSWAP_RESERVED = 1048576, FUSE_INIT_BSWAP_RESERVED = 436207616, }; struct fuse_in_header { uint32_t len; uint32_t opcode; uint64_t unique; uint64_t nodeid; uint32_t uid; uint32_t gid; uint32_t pid; uint32_t padding; }; struct fuse_out_header { uint32_t len; uint32_t error; uint64_t unique; }; struct syz_fuse_req_out { struct fuse_out_header* init; struct fuse_out_header* lseek; struct fuse_out_header* bmap; struct fuse_out_header* poll; struct fuse_out_header* getxattr; struct fuse_out_header* lk; struct fuse_out_header* statfs; struct fuse_out_header* write; struct fuse_out_header* read; struct fuse_out_header* open; struct fuse_out_header* attr; struct fuse_out_header* entry; struct fuse_out_header* dirent; struct fuse_out_header* direntplus; struct fuse_out_header* create_open; struct fuse_out_header* ioctl; struct fuse_out_header* statx; }; static int fuse_send_response(int fd, const struct fuse_in_header* in_hdr, struct fuse_out_header* out_hdr) { if (!out_hdr) { return -1; } out_hdr->unique = in_hdr->unique; if (write(fd, out_hdr, out_hdr->len) == -1) { return -1; } return 0; } static volatile long syz_fuse_handle_req(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { struct syz_fuse_req_out* req_out = (struct syz_fuse_req_out*)a3; struct fuse_out_header* out_hdr = NULL; char* buf = (char*)a1; int buf_len = (int)a2; int fd = (int)a0; if (!req_out) { return -1; } if (buf_len < FUSE_MIN_READ_BUFFER) { return -1; } int ret = read(fd, buf, buf_len); if (ret == -1) { return -1; } if ((size_t)ret < sizeof(struct fuse_in_header)) { return -1; } const struct fuse_in_header* in_hdr = (const struct fuse_in_header*)buf; if (in_hdr->len > (uint32_t)ret) { return -1; } switch (in_hdr->opcode) { case FUSE_GETATTR: case FUSE_SETATTR: out_hdr = req_out->attr; break; case FUSE_LOOKUP: case FUSE_SYMLINK: case FUSE_LINK: case FUSE_MKNOD: case FUSE_MKDIR: out_hdr = req_out->entry; break; case FUSE_OPEN: case FUSE_OPENDIR: out_hdr = req_out->open; break; case FUSE_STATFS: out_hdr = req_out->statfs; break; case FUSE_RMDIR: case FUSE_RENAME: case FUSE_RENAME2: case FUSE_FALLOCATE: case FUSE_SETXATTR: case FUSE_REMOVEXATTR: case FUSE_FSYNCDIR: case FUSE_FSYNC: case FUSE_SETLKW: case FUSE_SETLK: case FUSE_ACCESS: case FUSE_FLUSH: case FUSE_RELEASE: case FUSE_RELEASEDIR: case FUSE_UNLINK: case FUSE_DESTROY: out_hdr = req_out->init; if (!out_hdr) { return -1; } out_hdr->len = sizeof(struct fuse_out_header); break; case FUSE_READ: out_hdr = req_out->read; break; case FUSE_READDIR: out_hdr = req_out->dirent; break; case FUSE_READDIRPLUS: out_hdr = req_out->direntplus; break; case FUSE_INIT: out_hdr = req_out->init; break; case FUSE_LSEEK: out_hdr = req_out->lseek; break; case FUSE_GETLK: out_hdr = req_out->lk; break; case FUSE_BMAP: out_hdr = req_out->bmap; break; case FUSE_POLL: out_hdr = req_out->poll; break; case FUSE_GETXATTR: case FUSE_LISTXATTR: out_hdr = req_out->getxattr; break; case FUSE_WRITE: case FUSE_COPY_FILE_RANGE: out_hdr = req_out->write; break; case FUSE_FORGET: case FUSE_BATCH_FORGET: return 0; case FUSE_CREATE: out_hdr = req_out->create_open; break; case FUSE_IOCTL: out_hdr = req_out->ioctl; break; case FUSE_STATX: out_hdr = req_out->statx; break; default: return -1; } return fuse_send_response(fd, in_hdr, out_hdr); } #define HWSIM_ATTR_RX_RATE 5 #define HWSIM_ATTR_SIGNAL 6 #define HWSIM_ATTR_ADDR_RECEIVER 1 #define HWSIM_ATTR_FRAME 3 #define WIFI_MAX_INJECT_LEN 2048 static int hwsim_register_socket(struct nlmsg* nlmsg, int sock, int hwsim_family) { struct genlmsghdr genlhdr; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = HWSIM_CMD_REGISTER; netlink_init(nlmsg, hwsim_family, 0, &genlhdr, sizeof(genlhdr)); int err = netlink_send_ext(nlmsg, sock, 0, NULL, false); if (err < 0) { } return err; } static int hwsim_inject_frame(struct nlmsg* nlmsg, int sock, int hwsim_family, uint8_t* mac_addr, uint8_t* data, int len) { struct genlmsghdr genlhdr; uint32_t rx_rate = WIFI_DEFAULT_RX_RATE; uint32_t signal = WIFI_DEFAULT_SIGNAL; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = HWSIM_CMD_FRAME; netlink_init(nlmsg, hwsim_family, 0, &genlhdr, sizeof(genlhdr)); netlink_attr(nlmsg, HWSIM_ATTR_RX_RATE, &rx_rate, sizeof(rx_rate)); netlink_attr(nlmsg, HWSIM_ATTR_SIGNAL, &signal, sizeof(signal)); netlink_attr(nlmsg, HWSIM_ATTR_ADDR_RECEIVER, mac_addr, ETH_ALEN); netlink_attr(nlmsg, HWSIM_ATTR_FRAME, data, len); int err = netlink_send_ext(nlmsg, sock, 0, NULL, false); if (err < 0) { } return err; } static long syz_80211_inject_frame(volatile long a0, volatile long a1, volatile long a2) { uint8_t* mac_addr = (uint8_t*)a0; uint8_t* buf = (uint8_t*)a1; int buf_len = (int)a2; struct nlmsg tmp_msg; if (buf_len < 0 || buf_len > WIFI_MAX_INJECT_LEN) { return -1; } int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC); if (sock < 0) { return -1; } int hwsim_family_id = netlink_query_family_id(&tmp_msg, sock, "MAC80211_HWSIM", false); if (hwsim_family_id < 0) { close(sock); return -1; } int ret = hwsim_register_socket(&tmp_msg, sock, hwsim_family_id); if (ret < 0) { close(sock); return -1; } ret = hwsim_inject_frame(&tmp_msg, sock, hwsim_family_id, mac_addr, buf, buf_len); close(sock); if (ret < 0) { return -1; } return 0; } #define WIFI_MAX_SSID_LEN 32 #define WIFI_JOIN_IBSS_NO_SCAN 0 #define WIFI_JOIN_IBSS_BG_SCAN 1 #define WIFI_JOIN_IBSS_BG_NO_SCAN 2 static long syz_80211_join_ibss(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { char* interface = (char*)a0; uint8_t* ssid = (uint8_t*)a1; int ssid_len = (int)a2; int mode = (int)a3; struct nlmsg tmp_msg; uint8_t bssid[ETH_ALEN] = WIFI_IBSS_BSSID; if (ssid_len < 0 || ssid_len > WIFI_MAX_SSID_LEN) { return -1; } if (mode < 0 || mode > WIFI_JOIN_IBSS_BG_NO_SCAN) { return -1; } int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC); if (sock < 0) { return -1; } int nl80211_family_id = netlink_query_family_id(&tmp_msg, sock, "nl80211", false); if (nl80211_family_id < 0) { close(sock); return -1; } struct join_ibss_props ibss_props = { .wiphy_freq = WIFI_DEFAULT_FREQUENCY, .wiphy_freq_fixed = (mode == WIFI_JOIN_IBSS_NO_SCAN || mode == WIFI_JOIN_IBSS_BG_NO_SCAN), .mac = bssid, .ssid = ssid, .ssid_len = ssid_len}; int ret = nl80211_setup_ibss_interface(&tmp_msg, sock, nl80211_family_id, interface, &ibss_props, false); close(sock); if (ret < 0) { return -1; } if (mode == WIFI_JOIN_IBSS_NO_SCAN) { ret = await_ifla_operstate(&tmp_msg, interface, IF_OPER_UP, false); if (ret < 0) { return -1; } } return 0; } #define USLEEP_FORKED_CHILD (3 * 50 *1000) static long handle_clone_ret(long ret) { if (ret != 0) { return ret; } usleep(USLEEP_FORKED_CHILD); syscall(__NR_exit, 0); while (1) { } } static long syz_clone(volatile long flags, volatile long stack, volatile long stack_len, volatile long ptid, volatile long ctid, volatile long tls) { long sp = (stack + stack_len) & ~15; long ret = (long)syscall(__NR_clone, flags & ~CLONE_VM, sp, ptid, ctid, tls); return handle_clone_ret(ret); } #define MAX_CLONE_ARGS_BYTES 256 static long syz_clone3(volatile long a0, volatile long a1) { unsigned long copy_size = a1; if (copy_size < sizeof(uint64_t) || copy_size > MAX_CLONE_ARGS_BYTES) return -1; char clone_args[MAX_CLONE_ARGS_BYTES]; memcpy(&clone_args, (void*)a0, copy_size); uint64_t* flags = (uint64_t*)&clone_args; *flags &= ~CLONE_VM; return handle_clone_ret((long)syscall(__NR_clone3, &clone_args, copy_size)); } #define RESERVED_PKEY 15 static long syz_pkey_set(volatile long pkey, volatile long val) { if (pkey == RESERVED_PKEY) { errno = EINVAL; return -1; } uint32_t eax = 0; uint32_t ecx = 0; asm volatile("rdpkru" : "=a"(eax) : "c"(ecx) : "edx"); eax &= ~(3 << ((pkey % 16) * 2)); eax |= (val & 3) << ((pkey % 16) * 2); uint32_t edx = 0; asm volatile("wrpkru" ::"a"(eax), "c"(ecx), "d"(edx)); return 0; } static long syz_pidfd_open(volatile long pid, volatile long flags) { if (pid == 1) { pid = 0; } return syscall(__NR_pidfd_open, pid, flags); } struct thread_t { int created, call; event_t ready, done; }; static struct thread_t threads[16]; static void execute_call(int call); static int running; static void* thr(void* arg) { struct thread_t* th = (struct thread_t*)arg; for (;;) { event_wait(&th->ready); event_reset(&th->ready); execute_call(th->call); __atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED); event_set(&th->done); } return 0; } static void execute_one(void) { if (write(1, "executing program\n", sizeof("executing program\n") - 1)) { } int i, call, thread; for (call = 0; call < 63; call++) { for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0])); thread++) { struct thread_t* th = &threads[thread]; if (!th->created) { th->created = 1; event_init(&th->ready); event_init(&th->done); event_set(&th->done); thread_start(thr, th); } if (!event_isset(&th->done)) continue; event_reset(&th->done); th->call = call; __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED); event_set(&th->ready); if (call == 1) break; event_timedwait(&th->done, 50 + (call == 12 ? 500 : 0) + (call == 54 ? 3000 : 0) + (call == 55 ? 3000 : 0) + (call == 56 ? 3000 : 0) + (call == 57 ? 300 : 0) + (call == 58 ? 300 : 0) + (call == 59 ? 3000 : 0) + (call == 60 ? 300 : 0) + (call == 61 ? 300 : 0)); break; } } for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++) sleep_ms(1); } static void execute_one(void); #define WAIT_FLAGS __WALL static void loop(void) { int iter = 0; for (;; iter++) { char cwdbuf[32]; sprintf(cwdbuf, "./%d", iter); if (mkdir(cwdbuf, 0777)) exit(1); reset_loop(); int pid = fork(); if (pid < 0) exit(1); if (pid == 0) { if (chdir(cwdbuf)) exit(1); setup_test(); execute_one(); exit(0); } int status = 0; uint64_t start = current_time_ms(); for (;;) { sleep_ms(10); if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid) break; if (current_time_ms() - start < 5000) continue; kill_and_wait(pid, &status); break; } remove_dir(cwdbuf); } } uint64_t r[41] = {0xffffffffffffffff, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff}; void execute_call(int call) { intptr_t res = 0; switch (call) { case 0: memcpy((void*)0x200000000000, "/dev/ubi_ctrl\000", 14); inject_fault(1); res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x200000000000ul, /*flags=O_NOCTTY|O_NOATIME|O_DIRECT|O_APPEND|O_RDWR*/0x44502, /*mode=*/0); if (res != -1) r[0] = res; break; case 1: STORE_BY_BITMASK(uint8_t, , 0x200000000140, 0xa, 0, 7); STORE_BY_BITMASK(uint8_t, , 0x200000000140, 1, 7, 1); *(uint32_t*)0x200000000144 = 0xc5; *(uint32_t*)0x200000000148 = 1; *(uint64_t*)0x200000000150 = 0x200000000040; memcpy((void*)0x200000000040, "\xe1\xee\x87\xa8\xf7\x6c\x25\x7b\x75\xc1\x07\x3c\x70\x58\xbe\x82\xfe\x33\x62\xbb\xcc\xa5\x4d\xf5\x20\xd1\xca\x8f\xa9\x1b\x50\x81\x0f\x87\x6d\x1f\xab\x0a\x1c\xc2\x14\xc3\x5f\x4e\x26\x6e\x71\x64\x3d\x8c\x95\x98\x80\x87\xe4\x6a\x87\xc1\xa7\x15\xef\xfe\x06\x16\x9a\xb6\x5f\xa1\x8e\x54\x14\x40\x4f\x30\xc0\x00\x55\x61\x39\x7e\xd1\xd9\x55\x7c\x66\xa9\x94\xb9\x54\xef\xa7\x14\x98\x5a\x2a\xe4\x09\xdf\x81\x11\xfa\x8a\x36\x14\x08\x73\x4d\x15\xb3\x0c\xd9\xab\x3f\xa5\x0e\x08\x8b\x3d\x2b\xaf\xdc\x68\x9e\xa3\xcb\x7e\x52\xa9\xfc\x7f\x5d\x48\xd2\x45\xd4\x09\x7b\xb9\x33\x72\x5b\xd9\xe2\x93\x71\xcd\x77\x80\xb4\xec\x8d\x6e\x2d\xbf\x86\x1a\xad\x04\xd6\x59\x4f\x5e\xbd\x2f\xfa\xb1\xe8\xa6\x8c\x51\x57\xca\xe2\xf4\x6f\x6f\xa3\xae\xac\x0e\x3f\x8b\x7b\x97\x63\x0f\x34\x6b\xc3\x27\x6e\x53\xca\x72\xb4\x17\xf8", 197); syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0xc0185502, /*arg=*/0x200000000140ul); break; case 2: *(uint8_t*)0x200000000180 = 4; *(uint8_t*)0x200000000181 = 9; syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x4002f516, /*arg=*/0x200000000180ul); for (int i = 0; i < 4; i++) { syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x4002f516, /*arg=*/0x200000000180ul); } break; case 3: *(uint32_t*)0x2000000001c0 = -1; syscall(__NR_setsockopt, /*fd=*/r[0], /*level=*/6, /*optname=*/0x13, /*optval=*/0x2000000001c0ul, /*optlen=*/4ul); break; case 4: *(uint32_t*)0x200000000200 = 4; *(uint16_t*)0x200000000208 = 0xa; *(uint16_t*)0x20000000020a = htobe16(0x4e20); *(uint32_t*)0x20000000020c = htobe32(4); *(uint8_t*)0x200000000210 = 0xfc; *(uint8_t*)0x200000000211 = 0; memset((void*)0x200000000212, 0, 13); *(uint8_t*)0x20000000021f = 1; *(uint32_t*)0x200000000220 = 0; *(uint16_t*)0x200000000288 = 0xa; *(uint16_t*)0x20000000028a = htobe16(0x4e21); *(uint32_t*)0x20000000028c = htobe32(1); *(uint8_t*)0x200000000290 = 0xfe; *(uint8_t*)0x200000000291 = 0x80; memset((void*)0x200000000292, 0, 13); *(uint8_t*)0x20000000029f = 0xaa; *(uint32_t*)0x2000000002a0 = 9; syscall(__NR_setsockopt, /*fd=*/r[0], /*level=*/0x29, /*optname=MCAST_BLOCK_SOURCE*/0x2b, /*optval=*/0x200000000200ul, /*optlen=*/0x108ul); break; case 5: *(uint32_t*)0x200000000340 = 0x4b; memcpy((void*)0x200000000344, "\x0c\xbd\x83\x9a\x79\x58\x33\x77\x5d\x88\x69\x41\xba\x50\xa6\x62\xb8\x10\x8f\x94\x6a\xef\xdd\x5c\xb7\xb6\xeb\x3a\x78\xa0\x64\x73\xe5\x82\x89\xee\x95\x41\xad\x35\x45\x8f\xa9\xd6\xb6\x44\xbf\x56\xfd\xbb\xe1\xc4\x40\x04\x3f\x67\x9b\x3a\x03\xcf\x34\xcc\x05\xed\xc7\x36\xad\x84\x88\x52\xc6\x93\xb8\x9b\x55\x1c\xaa\xbf\x8c\xae\xdd\x7f\x8e\xe9\x80\x29\x49\x11\xc0\x2a\xcd\xb1\x10\x5f\x36\xe9\x73\x61\x6e\xb6\x09\x53\x5e\x68\xc8\xaf\xfb\x3c\x93\x5c\x76\x0f\x88\x5f\xa2\xa4\xb4\x83\x8d\x7d\xb0\x09\xe9\x19\xe5\xab\x59\x34\xb3\xb8\x5f\x8f\xf9\xe2\xaf\xc0\xa1\x86\xc9\xdc\xf9\xab\x5c\x9f\x6e\xb4\x56\x20\xdd\xbd\xa7\xe2\xa4\x67\x7a\x1e\x7c\x69\x4b\x3e\x00\xe3\x5a\x16\xd8\xe5\x25\x26\xd1\x35\x3b\xb0\xfd\x60\x7f\xa0\xf0\x7d\x45\x80\x81\x02\xe3\x8c\x66\xb6\xb5\xbf\xe0\x53\x03\x6b\x95\x6a\x96\x70\x1a\x8d\x02\x58\x8e\x7a\x7c\xc1\xf8\x4a\x3c\x0a\x3b\xa7\x80\xd5\xbb\x49\x4e\x86\x01\x75\x98\x9a\xb6\xec\x07\xd1\x35\x33\x71\x5c\xfb\x45\x84\xfd\x2a\x81\x86\xd7\x4b\xb7\x40\x17\x20\x6d\x94\x0f\x25\xfa\x7e\xc2\xde\xbe\x5a\x31\xcf\x5c\x23\x30", 256); syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x41045508, /*arg=*/0x200000000340ul); break; case 6: *(uint64_t*)0x200000000580 = 0x200000000480; *(uint64_t*)0x200000000588 = 0x8000; *(uint32_t*)0x200000000590 = 0x1800; *(uint32_t*)0x200000000594 = 1; *(uint32_t*)0x200000000598 = 3; syscall(__NR_setsockopt, /*fd=*/r[0], /*level=*/0x11b, /*opt=*/4, /*val=*/0x200000000580ul, /*len=*/0x20ul); break; case 7: *(uint64_t*)0x2000000005c0 = 4; syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x127d, /*arg=*/0x2000000005c0ul); break; case 8: *(uint32_t*)0x200000000604 = 0; *(uint32_t*)0x200000000608 = r[0]; *(uint32_t*)0x20000000060c = 0; syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0xc01864c2, /*arg=*/0x200000000600ul); break; case 9: *(uint32_t*)0x2000000006c0 = 0; syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0xc00464c9, /*arg=*/0x2000000006c0ul); break; case 10: memset((void*)0x200000000000, 255, 6); STORE_BY_BITMASK(uint8_t, , 0x200000000040, 0, 0, 2); STORE_BY_BITMASK(uint8_t, , 0x200000000040, 2, 2, 2); STORE_BY_BITMASK(uint8_t, , 0x200000000040, 0xb, 4, 4); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 0, 0, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 1, 1, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 0, 2, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 1, 3, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 1, 4, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 0, 5, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 0, 6, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 1, 7, 1); STORE_BY_BITMASK(uint16_t, , 0x200000000042, 2, 0, 15); STORE_BY_BITMASK(uint16_t, , 0x200000000043, 0, 7, 1); *(uint8_t*)0x200000000044 = 8; *(uint8_t*)0x200000000045 = 2; *(uint8_t*)0x200000000046 = 0x11; *(uint8_t*)0x200000000047 = 0; *(uint8_t*)0x200000000048 = 0; *(uint8_t*)0x200000000049 = 1; *(uint8_t*)0x20000000004a = 8; *(uint8_t*)0x20000000004b = 2; *(uint8_t*)0x20000000004c = 0x11; *(uint8_t*)0x20000000004d = 0; *(uint8_t*)0x20000000004e = 0; *(uint8_t*)0x20000000004f = 0; memset((void*)0x200000000050, 80, 6); STORE_BY_BITMASK(uint16_t, , 0x200000000056, 9, 0, 4); STORE_BY_BITMASK(uint16_t, , 0x200000000056, 0x5bb, 4, 12); STORE_BY_BITMASK(uint8_t, , 0x200000000058, 1, 0, 4); STORE_BY_BITMASK(uint8_t, , 0x200000000058, 1, 4, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000058, 1, 5, 2); STORE_BY_BITMASK(uint8_t, , 0x200000000058, 1, 7, 1); *(uint8_t*)0x200000000059 = 9; STORE_BY_BITMASK(uint16_t, , 0x20000000005a, 0, 0, 1); STORE_BY_BITMASK(uint16_t, , 0x20000000005a, 2, 1, 15); STORE_BY_BITMASK(uint8_t, , 0x20000000005c, 0, 0, 2); STORE_BY_BITMASK(uint8_t, , 0x20000000005c, 0, 2, 2); STORE_BY_BITMASK(uint8_t, , 0x20000000005c, 0, 4, 2); STORE_BY_BITMASK(uint8_t, , 0x20000000005c, 3, 6, 2); STORE_BY_BITMASK(uint8_t, , 0x20000000005d, 0, 0, 1); STORE_BY_BITMASK(uint8_t, , 0x20000000005d, 0, 1, 5); STORE_BY_BITMASK(uint8_t, , 0x20000000005d, 1, 6, 1); STORE_BY_BITMASK(uint8_t, , 0x20000000005d, 0, 7, 1); memcpy((void*)0x20000000005e, "\x05\x5b\xa7\x19\x28\xa7\x9f\x86\x25\x94\x2b\x8e\x22\xa6\x2e\x7d\x0e\xf5\xd2\x6a\xfb\x59\x23\xf0\xa1", 25); syz_80211_inject_frame(/*mac_addr=*/0x200000000000, /*buf=*/0x200000000040, /*buf_len=*/0x37); break; case 11: memcpy((void*)0x200000000080, "wlan0\000", 6); memcpy((void*)0x2000000000c0, "\xf2\x0f\x01\x43\x92\x29\x17\x2e\xc7\x63\x7d\x66\xe2\xf0\x75", 15); syz_80211_join_ibss(/*interface=*/0x200000000080, /*ssid=*/0x2000000000c0, /*ssid_len=*/0xf, /*join_mode=JOIN_IBSS_BG_NO_SCAN*/2); break; case 12: memcpy((void*)0x200000000100, "bpf_lsm_inode_getsecurity\000", 26); syz_btf_id_by_name(/*name=*/0x200000000100); break; case 13: memcpy((void*)0x200000000140, "\xff\x42\x7f\x0e\x46\x59\xab\x58\x93\xd3\xba\xdb\x31\xb3\xb1\xb8\x9d\xa5\x2b\x0f\x3d\x34\x89\xa1\x8a\x58\x37\xba\x6e\x04\xf2\x1c\xf0\x58\x1d\xe7\x94\x6c\x2e\x29\xad\xef\x18\x03\x6a\x10\xce\x36\x12\x50\xa5\x66\x70\x64\xb4\xd4\x56\xc6\x4c\x30\x7d\x63\xcf\xe3\x42\x2c\x3f\xaf\xd4\x50\x31\x5e\x83\x66", 74); memcpy((void*)0x200000000240, "\xb2\x01\xd1\x39\xa4\x34\x4e\x46\x3d\x89\x91\x3b\xee\x9c\x68\xaf\x3f\x34\x09\x0b\x9f\x62\x44\xaf\x88\xc8\xfe\x07\xce\x4f\xfe\x9b\x81\x21\x0d\xa0\xfc\x44\x55\x9d\x98\x5a\xd5\xbb\x1d\xc9\x67\x2c\xe4\xd1\xdf\x55\x4a\xaf\xb7\x80\x53\xf4", 58); res = -1; res = syz_clone(/*flags=CLONE_PIDFD*/0x1000, /*stack=*/0x200000000140, /*stack_len=*/0x4a, /*parentid=*/0x2000000001c0, /*childtid=*/0x200000000200, /*tls=*/0x200000000240); if (res != -1) r[1] = res; break; case 14: *(uint64_t*)0x200000000440 = 0x100400; *(uint64_t*)0x200000000448 = 0x200000000280; *(uint64_t*)0x200000000450 = 0x2000000002c0; *(uint64_t*)0x200000000458 = 0x200000000300; *(uint32_t*)0x200000000460 = 0x2a; *(uint64_t*)0x200000000468 = 0x200000000340; *(uint64_t*)0x200000000470 = 0x15; *(uint64_t*)0x200000000478 = 0x200000000380; *(uint64_t*)0x200000000480 = 0x200000000400; *(uint32_t*)0x200000000400 = r[1]; *(uint64_t*)0x200000000488 = 1; *(uint32_t*)0x200000000490 = -1; res = -1; res = syz_clone3(/*args=*/0x200000000440, /*size=*/0x58); if (res != -1) { r[2] = res; r[3] = *(uint32_t*)0x200000000280; r[4] = *(uint32_t*)0x2000000002c0; r[5] = *(uint32_t*)0x200000000300; } break; case 15: memcpy((void*)0x2000000004c0, "./file0\000", 8); syz_create_resource(/*file=*/0x2000000004c0); break; case 16: memcpy((void*)0x200000000740, "/dev/cuse\000", 10); res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x200000000740ul, /*flags=*/2, /*mode=*/0); if (res != -1) r[6] = res; break; case 17: *(uint32_t*)0x200000002a80 = 7; *(uint32_t*)0x200000002a84 = 4; *(uint32_t*)0x200000002a88 = r[5]; *(uint32_t*)0x200000002a90 = 0; *(uint64_t*)0x200000002a98 = 0x100000000; *(uint64_t*)0x200000002aa0 = 3; res = syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0xc0286405, /*arg=*/0x200000002a80ul); if (res != -1) r[7] = *(uint32_t*)0x200000002a90; break; case 18: *(uint32_t*)0x200000002b80 = 1; *(uint32_t*)0x200000002b84 = 0; *(uint32_t*)0x200000002b88 = 0xee00; *(uint32_t*)0x200000002b8c = 5; *(uint32_t*)0x200000002b90 = 9; *(uint32_t*)0x200000002b94 = 0x8c; *(uint16_t*)0x200000002b98 = 6; *(uint32_t*)0x200000002b9c = 0xe0000; *(uint64_t*)0x200000002ba0 = 3; *(uint64_t*)0x200000002ba8 = 6; *(uint64_t*)0x200000002bb0 = 0x2c54; *(uint32_t*)0x200000002bb8 = 0x7fffffff; *(uint32_t*)0x200000002bbc = 5; *(uint16_t*)0x200000002bc0 = 3; *(uint16_t*)0x200000002bc2 = 0; *(uint64_t*)0x200000002bc8 = 0x200000002ac0; memcpy((void*)0x200000002ac0, "\x34\xd1\x45\x92\x33\x0d\x2e\xff\xe2\xb2\x42\xce\x1c\x79\xf9\x7a\x73\x7d\xc0\xf7\x74\x5d\x84\xee\xc4\x69\x04\x8b\xa4\x77\x2d\x3c\xa2\xf3\x4e\x3a\x83\xb5\xed\xad\xf6\x55\x0e\x5b\x41\x2c\xf5\xee\x74\x9b\x33\x24\xb3\x00\x32\xad\x2a\xe1\x4c\xfa\x29\xef\x4e\xcf\x97\x41\x6f\xdc\x53\xd7\x3b\xb8\x0e\xa1\x39\xaa\xc1\xbf\x36\x4d\xdc\xbe\x74\x09\x34\x21\x55\xae\x12\x6f\x63\xd9\xe3\xab\x1d\x51\x04\xbe\xfd\xd9", 100); *(uint64_t*)0x200000002bd0 = 0x200000002b40; memcpy((void*)0x200000002b40, "\xe5\x50\x41\x3c\x2f\x46\x9c\x9e\xf0\x8e\xb7\x19\x3b\x0a\x24\x2e\x58\xbe\xfe\x01\x2a\xa8\x9d\x7c", 24); res = syscall(__NR_shmctl, /*shmid=*/8, /*cmd=*/2ul, /*buf=*/0x200000002b80ul); if (res != -1) r[8] = *(uint32_t*)0x200000002b88; break; case 19: res = syscall(__NR_setfsuid, /*uid=*/0xee01); if (res != -1) r[9] = res; break; case 20: res = syscall(__NR_getuid); if (res != -1) r[10] = res; break; case 21: res = syscall(__NR_fstat, /*fd=*/r[3], /*statbuf=*/0x200000002ec0ul); if (res != -1) { r[11] = *(uint32_t*)0x200000002ed8; r[12] = *(uint32_t*)0x200000002edc; } break; case 22: *(uint32_t*)0x200000002f40 = 9; *(uint32_t*)0x200000002f44 = 6; *(uint32_t*)0x200000002f48 = -1; *(uint32_t*)0x200000002f50 = 0xee01; *(uint64_t*)0x200000002f58 = 9; *(uint64_t*)0x200000002f60 = 8; res = syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0xc0286405, /*arg=*/0x200000002f40ul); if (res != -1) r[13] = *(uint32_t*)0x200000002f50; break; case 23: *(uint64_t*)0x200000002f80 = 1; *(uint32_t*)0x200000002f88 = r[3]; *(uint32_t*)0x200000002f90 = r[3]; *(uint64_t*)0x200000002f98 = 0; *(uint64_t*)0x200000002fa0 = 0; memset((void*)0x200000002fa8, 0, 16); *(uint64_t*)0x200000002fb8 = 0x100; *(uint16_t*)0x200000002fc0 = 6; *(uint16_t*)0x200000002fc2 = 4; *(uint32_t*)0x200000002fc4 = 0; *(uint32_t*)0x200000002fc8 = 0xee01; *(uint32_t*)0x200000002fcc = 4; *(uint32_t*)0x200000002fd0 = 2; *(uint64_t*)0x200000002fd8 = 0xe78bc90; *(uint64_t*)0x200000002fe0 = 0x9e350; *(uint32_t*)0x200000002fe8 = 0x10; *(uint64_t*)0x200000002ff0 = 4; *(uint32_t*)0x200000002ff8 = 7; *(uint64_t*)0x200000003000 = 0x3a83; *(uint32_t*)0x200000003008 = 0x80000000; *(uint64_t*)0x200000003010 = 0xff; *(uint32_t*)0x200000003018 = 8; *(uint32_t*)0x20000000301c = 7; *(uint32_t*)0x200000003020 = 7; *(uint32_t*)0x200000003024 = 5; *(uint16_t*)0x200000003028 = 0xd275; *(uint16_t*)0x20000000302a = 6; *(uint16_t*)0x20000000302c = 1; *(uint16_t*)0x20000000302e = 0xff74; *(uint16_t*)0x200000003030 = 5; memset((void*)0x200000003032, 0, 2); *(uint32_t*)0x200000003034 = 0xf0e; *(uint32_t*)0x200000003038 = 0x400; *(uint16_t*)0x20000000303c = 2; *(uint16_t*)0x20000000303e = 0x8001; res = syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0xc0c0586d, /*arg=*/0x200000002f80ul); if (res != -1) { r[14] = *(uint32_t*)0x200000002f88; r[15] = *(uint32_t*)0x200000002f90; r[16] = *(uint32_t*)0x200000002fc8; } break; case 24: *(uint32_t*)0x2000000030c0 = 0x80; *(uint32_t*)0x2000000030c4 = 0; *(uint32_t*)0x2000000030c8 = 0xee01; *(uint32_t*)0x2000000030cc = 8; *(uint32_t*)0x2000000030d0 = 3; *(uint32_t*)0x2000000030d4 = 3; *(uint16_t*)0x2000000030d8 = 6; *(uint64_t*)0x2000000030e0 = 0x200000003040; *(uint8_t*)0x200000003040 = 0xf; *(uint64_t*)0x2000000030e8 = 0x200000003080; *(uint8_t*)0x200000003080 = 0x29; *(uint64_t*)0x2000000030f0 = 0xfffffffffffff801; *(uint64_t*)0x2000000030f8 = 0x6b4c; *(uint64_t*)0x200000003100 = 0; *(uint64_t*)0x200000003108 = 3; *(uint64_t*)0x200000003110 = 0x800; *(uint16_t*)0x200000003118 = 2; *(uint16_t*)0x20000000311a = 0xbf09; *(uint16_t*)0x20000000311c = 3; *(uint32_t*)0x200000003120 = r[2]; *(uint32_t*)0x200000003124 = r[4]; res = syscall(__NR_msgctl, /*msqid=*/2, /*cmd=*/0ul, /*buf=*/0x2000000030c0ul); if (res != -1) r[17] = *(uint32_t*)0x2000000030c4; break; case 25: *(uint32_t*)0x200000003140 = 0xb407; *(uint32_t*)0x200000003144 = 0xee01; *(uint64_t*)0x200000003148 = 8; *(uint64_t*)0x200000003150 = 8; res = syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0x4018aee2, /*arg=*/0x200000003140ul); if (res != -1) r[18] = *(uint32_t*)0x200000003144; break; case 26: memcpy((void*)0x200000003180, "./file0\000", 8); *(uint32_t*)0x2000000031c0 = 8; *(uint32_t*)0x2000000031c4 = 0xfffffffe; *(uint64_t*)0x2000000031c8 = 0; *(uint32_t*)0x2000000031d0 = 0xa; *(uint32_t*)0x2000000031d4 = 0; *(uint32_t*)0x2000000031d8 = 0xee00; *(uint16_t*)0x2000000031dc = 0xf; *(uint16_t*)0x2000000031de = 0x5d3e; *(uint64_t*)0x2000000031e0 = 5; *(uint64_t*)0x2000000031e8 = 0x10; *(uint64_t*)0x2000000031f0 = 0xff89; *(uint64_t*)0x2000000031f8 = 0x100; *(uint64_t*)0x200000003200 = 0xf; *(uint32_t*)0x200000003208 = 8; *(uint32_t*)0x20000000320c = 0; *(uint64_t*)0x200000003210 = 0xfff; *(uint32_t*)0x200000003218 = 2; *(uint32_t*)0x20000000321c = 0; *(uint64_t*)0x200000003220 = 3; *(uint32_t*)0x200000003228 = 0x7fff; *(uint32_t*)0x20000000322c = 0; *(uint64_t*)0x200000003230 = -1; *(uint32_t*)0x200000003238 = 9; *(uint32_t*)0x20000000323c = 0; *(uint32_t*)0x200000003240 = 0; *(uint32_t*)0x200000003244 = 3; *(uint32_t*)0x200000003248 = 7; *(uint32_t*)0x20000000324c = 0x8d6; *(uint64_t*)0x200000003250 = 0x383d; *(uint32_t*)0x200000003258 = 4; *(uint32_t*)0x20000000325c = 0xb0d4; *(uint64_t*)0x200000003260 = 0x503; *(uint32_t*)0x200000003268 = 2; *(uint32_t*)0x20000000326c = 0; *(uint32_t*)0x200000003270 = 5; *(uint32_t*)0x200000003274 = 2; *(uint64_t*)0x200000003278 = 0xfffffffffffffffb; *(uint64_t*)0x200000003280 = 0xff; *(uint64_t*)0x200000003288 = 3; *(uint64_t*)0x200000003290 = 0x259; *(uint64_t*)0x200000003298 = 0xbe9; *(uint64_t*)0x2000000032a0 = 0xff; *(uint64_t*)0x2000000032a8 = 6; *(uint64_t*)0x2000000032b0 = 0x800; *(uint64_t*)0x2000000032b8 = 9; res = syscall(__NR_statx, /*dfd=*/0xffffff9c, /*filename=*/0x200000003180ul, /*flags=*/4, /*mask=*/2, /*buffer=*/0x2000000031c0ul); if (res != -1) r[19] = *(uint32_t*)0x2000000031d4; break; case 27: *(uint32_t*)0x200000004300 = 5; *(uint32_t*)0x200000004304 = 0xee00; *(uint32_t*)0x200000004308 = 0xee00; *(uint32_t*)0x20000000430c = 3; *(uint32_t*)0x200000004310 = 0x7ff; *(uint32_t*)0x200000004314 = 2; *(uint16_t*)0x200000004318 = 5; *(uint32_t*)0x20000000431c = 2; *(uint64_t*)0x200000004320 = 0x401; *(uint64_t*)0x200000004328 = 3; *(uint64_t*)0x200000004330 = 0xfffffffffffffffe; *(uint32_t*)0x200000004338 = r[1]; *(uint32_t*)0x20000000433c = r[4]; *(uint16_t*)0x200000004340 = 0xfffe; *(uint16_t*)0x200000004342 = 0; *(uint64_t*)0x200000004348 = 0x2000000032c0; memcpy((void*)0x2000000032c0, 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4096); *(uint64_t*)0x200000004350 = 0x2000000042c0; memcpy((void*)0x2000000042c0, "\x14\xdc\x2c\x36\xc1\xa4\x73\x0f\x33\xf0\xa4\x77\x56\xb4\x37\x79\x2e\x9a\xc7\x8f\x74\x2f\x82\x1e\x32\x83\x41\xe0\x2b", 29); res = syscall(__NR_shmctl, /*shmid=*/3, /*cmd=*/1ul, /*buf=*/0x200000004300ul); if (res != -1) { r[20] = *(uint32_t*)0x200000004308; r[21] = *(uint32_t*)0x20000000433c; } break; case 28: memcpy((void*)0x200000004600, "./file0\000", 8); res = syscall(__NR_newfstatat, /*dfd=*/0xffffffffffffff9cul, /*file=*/0x200000004600ul, /*statbuf=*/0x200000004640ul, /*flag=*/0ul); if (res != -1) r[22] = *(uint32_t*)0x200000004658; break; case 29: res = syscall(__NR_fstat, /*fd=*/r[3], /*statbuf=*/0x2000000046c0ul); if (res != -1) { r[23] = *(uint32_t*)0x2000000046d8; r[24] = *(uint32_t*)0x2000000046dc; } break; case 30: *(uint32_t*)0x2000000058c0 = -1; *(uint32_t*)0x2000000058c4 = 0xee00; *(uint32_t*)0x2000000058c8 = -1; *(uint32_t*)0x2000000058cc = 2; *(uint32_t*)0x2000000058d0 = 9; *(uint32_t*)0x2000000058d4 = 2; *(uint16_t*)0x2000000058d8 = 4; *(uint32_t*)0x2000000058dc = 6; *(uint64_t*)0x2000000058e0 = 4; *(uint64_t*)0x2000000058e8 = 4; *(uint64_t*)0x2000000058f0 = 1; *(uint32_t*)0x2000000058f8 = 0; *(uint32_t*)0x2000000058fc = r[4]; *(uint16_t*)0x200000005900 = 0x40; *(uint16_t*)0x200000005902 = 0; *(uint64_t*)0x200000005908 = 0x200000004840; memcpy((void*)0x200000004840, "\xbe\x99\x9e\xee\x25\x89\x59\xe9\x3a\x2a\xa6\x8d\xc2\xcb\x1d\x93\xb8\x19\xd2\xb9\xd9\xe6\x78\xe2\xe2\x50\x6d\x54\x51\x0e\x92\x07\x28\xd7\x58\x15\xbb\x80\x27\xe6\xa0\x21\xfe\xbb\x8f\x09\x96\xf8\xad\xd6\x87\x7b\x74\xce\x5e\xac\xe7\x45\x04\xcf\x3a\x4f\x3a\xc4\x6a\x5a\x59\x40\x03\x42\x35\x19\x40\xbf\xb8\x76\x7d\xd9\x95\x5c\x9e\x9a\x99\x41", 84); *(uint64_t*)0x200000005910 = 0x2000000048c0; memcpy((void*)0x2000000048c0, 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4096); res = syscall(__NR_shmctl, /*shmid=*/0, /*cmd=*/7, /*buf=*/0x2000000058c0ul); if (res != -1) r[25] = *(uint32_t*)0x2000000058c4; break; case 31: memcpy((void*)0x200000005940, "./file0\000", 8); *(uint64_t*)0x200000005980 = 0x100000000; *(uint64_t*)0x200000005988 = 0x7d80; *(uint64_t*)0x200000005990 = 1; *(uint32_t*)0x200000005998 = 0x40; *(uint32_t*)0x20000000599c = -1; *(uint32_t*)0x2000000059a0 = 0; *(uint32_t*)0x2000000059a4 = 0; *(uint64_t*)0x2000000059a8 = 7; *(uint64_t*)0x2000000059b0 = 0xfffffffffffffffb; *(uint64_t*)0x2000000059b8 = 0; *(uint64_t*)0x2000000059c0 = 2; *(uint64_t*)0x2000000059c8 = 0xe6; *(uint64_t*)0x2000000059d0 = 2; *(uint64_t*)0x2000000059d8 = 4; *(uint64_t*)0x2000000059e0 = 0xa03f; *(uint64_t*)0x2000000059e8 = 0x10; *(uint64_t*)0x2000000059f0 = 7; memset((void*)0x2000000059f8, 0, 24); res = syscall(__NR_lstat, /*filename=*/0x200000005940ul, /*statbuf=*/0x200000005980ul); if (res != -1) { r[26] = *(uint32_t*)0x20000000599c; r[27] = *(uint32_t*)0x2000000059a0; } break; case 32: memcpy((void*)0x200000000780, 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8192); *(uint64_t*)0x200000005b80 = 0x200000002780; *(uint32_t*)0x200000002780 = 0x50; *(uint32_t*)0x200000002784 = 0xffffffda; *(uint64_t*)0x200000002788 = 7; *(uint32_t*)0x200000002790 = 7; *(uint32_t*)0x200000002794 = 0x2d; *(uint32_t*)0x200000002798 = 8; *(uint32_t*)0x20000000279c = 0x1020000; *(uint16_t*)0x2000000027a0 = 0xfffc; *(uint16_t*)0x2000000027a2 = 0x401; *(uint32_t*)0x2000000027a4 = 0x12; *(uint32_t*)0x2000000027a8 = 6; *(uint16_t*)0x2000000027ac = 0; *(uint16_t*)0x2000000027ae = 0; *(uint32_t*)0x2000000027b0 = 0x40; *(uint32_t*)0x2000000027b4 = 0xce; memset((void*)0x2000000027b8, 0, 24); *(uint64_t*)0x200000005b88 = 0x200000002800; *(uint32_t*)0x200000002800 = 0x18; *(uint32_t*)0x200000002804 = 0; *(uint64_t*)0x200000002808 = 6; *(uint64_t*)0x200000002810 = 0xbb; *(uint64_t*)0x200000005b90 = 0x200000002840; *(uint32_t*)0x200000002840 = 0x18; *(uint32_t*)0x200000002844 = 0; *(uint64_t*)0x200000002848 = 1; *(uint64_t*)0x200000002850 = 5; *(uint64_t*)0x200000005b98 = 0x200000002880; *(uint32_t*)0x200000002880 = 0x18; *(uint32_t*)0x200000002884 = 0xfffffff5; *(uint64_t*)0x200000002888 = 4; *(uint32_t*)0x200000002890 = 0; *(uint32_t*)0x200000002894 = 0; *(uint64_t*)0x200000005ba0 = 0x2000000028c0; *(uint32_t*)0x2000000028c0 = 0x18; *(uint32_t*)0x2000000028c4 = 0xfffffffe; *(uint64_t*)0x2000000028c8 = 3; *(uint32_t*)0x2000000028d0 = 7; *(uint32_t*)0x2000000028d4 = 0; *(uint64_t*)0x200000005ba8 = 0x200000002900; *(uint32_t*)0x200000002900 = 0x28; *(uint32_t*)0x200000002904 = 0; *(uint64_t*)0x200000002908 = 0x300000000000; *(uint64_t*)0x200000002910 = 1; *(uint64_t*)0x200000002918 = 8; *(uint32_t*)0x200000002920 = 0; *(uint32_t*)0x200000002924 = r[1]; *(uint64_t*)0x200000005bb0 = 0x200000002940; *(uint32_t*)0x200000002940 = 0x60; *(uint32_t*)0x200000002944 = 0; *(uint64_t*)0x200000002948 = 0xc; *(uint64_t*)0x200000002950 = 0; *(uint64_t*)0x200000002958 = 0xff; *(uint64_t*)0x200000002960 = 2; *(uint64_t*)0x200000002968 = 0x41; *(uint64_t*)0x200000002970 = 0x40; *(uint32_t*)0x200000002978 = 6; *(uint32_t*)0x20000000297c = 0x8dd; *(uint32_t*)0x200000002980 = 5; *(uint32_t*)0x200000002984 = 0; memset((void*)0x200000002988, 0, 24); *(uint64_t*)0x200000005bb8 = 0x2000000029c0; *(uint32_t*)0x2000000029c0 = 0x18; *(uint32_t*)0x2000000029c4 = 0xffffffda; *(uint64_t*)0x2000000029c8 = 9; *(uint32_t*)0x2000000029d0 = 5; *(uint32_t*)0x2000000029d4 = 0; *(uint64_t*)0x200000005bc0 = 0x200000002a00; *(uint32_t*)0x200000002a00 = 0x16; *(uint32_t*)0x200000002a04 = 0; *(uint64_t*)0x200000002a08 = 6; memset((void*)0x200000002a10, 255, 6); *(uint64_t*)0x200000005bc8 = 0x200000002a40; *(uint32_t*)0x200000002a40 = 0x20; *(uint32_t*)0x200000002a44 = 0; *(uint64_t*)0x200000002a48 = 0; *(uint64_t*)0x200000002a50 = 0; *(uint32_t*)0x200000002a58 = 0x1e; *(uint32_t*)0x200000002a5c = 0; *(uint64_t*)0x200000005bd0 = 0x200000002c00; *(uint32_t*)0x200000002c00 = 0x78; *(uint32_t*)0x200000002c04 = 0xfffffffe; *(uint64_t*)0x200000002c08 = 3; *(uint64_t*)0x200000002c10 = 8; *(uint32_t*)0x200000002c18 = 6; *(uint32_t*)0x200000002c1c = 0; *(uint64_t*)0x200000002c20 = 0; *(uint64_t*)0x200000002c28 = 8; *(uint64_t*)0x200000002c30 = 2; *(uint64_t*)0x200000002c38 = 8; *(uint64_t*)0x200000002c40 = 0x80; *(uint64_t*)0x200000002c48 = 5; *(uint32_t*)0x200000002c50 = 0x3482; *(uint32_t*)0x200000002c54 = 0xa246; *(uint32_t*)0x200000002c58 = 0x80000000; *(uint32_t*)0x200000002c5c = 0x4000; *(uint32_t*)0x200000002c60 = 0x3e08; *(uint32_t*)0x200000002c64 = r[7]; *(uint32_t*)0x200000002c68 = r[8]; *(uint32_t*)0x200000002c6c = 0x7f; *(uint32_t*)0x200000002c70 = 3; *(uint32_t*)0x200000002c74 = 0; *(uint64_t*)0x200000005bd8 = 0x200000002c80; *(uint32_t*)0x200000002c80 = 0x90; *(uint32_t*)0x200000002c84 = 0xffffffda; *(uint64_t*)0x200000002c88 = 2; *(uint64_t*)0x200000002c90 = 6; *(uint64_t*)0x200000002c98 = 0; *(uint64_t*)0x200000002ca0 = 2; *(uint64_t*)0x200000002ca8 = 8; *(uint32_t*)0x200000002cb0 = 0xfffffffc; *(uint32_t*)0x200000002cb4 = 9; *(uint64_t*)0x200000002cb8 = 1; *(uint64_t*)0x200000002cc0 = 3; *(uint64_t*)0x200000002cc8 = 2; *(uint64_t*)0x200000002cd0 = 5; *(uint64_t*)0x200000002cd8 = 0x761; *(uint64_t*)0x200000002ce0 = 7; *(uint32_t*)0x200000002ce8 = 0x58d95c3d; *(uint32_t*)0x200000002cec = 7; *(uint32_t*)0x200000002cf0 = 7; *(uint32_t*)0x200000002cf4 = 0x8000; *(uint32_t*)0x200000002cf8 = 8; *(uint32_t*)0x200000002cfc = r[9]; *(uint32_t*)0x200000002d00 = 0xee01; *(uint32_t*)0x200000002d04 = 0; *(uint32_t*)0x200000002d08 = 0x400; *(uint32_t*)0x200000002d0c = 0; *(uint64_t*)0x200000005be0 = 0x200000002d40; *(uint32_t*)0x200000002d40 = 0x158; *(uint32_t*)0x200000002d44 = 0; *(uint64_t*)0x200000002d48 = 0x8000000000000001; *(uint64_t*)0x200000002d50 = 0; *(uint64_t*)0x200000002d58 = 0; *(uint32_t*)0x200000002d60 = 0; *(uint32_t*)0x200000002d64 = 5; *(uint64_t*)0x200000002d68 = 2; *(uint64_t*)0x200000002d70 = 0x291; *(uint32_t*)0x200000002d78 = 3; *(uint32_t*)0x200000002d7c = 0; memcpy((void*)0x200000002d80, "a-$", 3); *(uint64_t*)0x200000002d88 = 6; *(uint64_t*)0x200000002d90 = 1; *(uint32_t*)0x200000002d98 = 0x1a; *(uint32_t*)0x200000002d9c = 0x5df9; memcpy((void*)0x200000002da0, "bpf_lsm_inode_getsecurity\000", 26); *(uint64_t*)0x200000002dc0 = 5; *(uint64_t*)0x200000002dc8 = 4; *(uint32_t*)0x200000002dd0 = 0; *(uint32_t*)0x200000002dd4 = 0; *(uint64_t*)0x200000002dd8 = 3; *(uint64_t*)0x200000002de0 = 2; *(uint32_t*)0x200000002de8 = 7; *(uint32_t*)0x200000002dec = 0x615d; memcpy((void*)0x200000002df0, "]F,[@%(", 7); *(uint64_t*)0x200000002df8 = 3; *(uint64_t*)0x200000002e00 = 4; *(uint32_t*)0x200000002e08 = 2; *(uint32_t*)0x200000002e0c = 5; memcpy((void*)0x200000002e10, "#*", 2); *(uint64_t*)0x200000002e18 = 6; *(uint64_t*)0x200000002e20 = 0xc; *(uint32_t*)0x200000002e28 = 1; *(uint32_t*)0x200000002e2c = 0x200; memset((void*)0x200000002e30, 33, 1); *(uint64_t*)0x200000002e38 = 2; *(uint64_t*)0x200000002e40 = 1; *(uint32_t*)0x200000002e48 = 3; *(uint32_t*)0x200000002e4c = 0xffff; memcpy((void*)0x200000002e50, "%[*", 3); *(uint64_t*)0x200000002e58 = 2; *(uint64_t*)0x200000002e60 = 1; *(uint32_t*)0x200000002e68 = 6; *(uint32_t*)0x200000002e6c = 0x10001; memset((void*)0x200000002e70, 187, 6); *(uint64_t*)0x200000002e78 = 2; *(uint64_t*)0x200000002e80 = 9; *(uint32_t*)0x200000002e88 = 3; *(uint32_t*)0x200000002e8c = 3; memcpy((void*)0x200000002e90, "\\$&", 3); *(uint64_t*)0x200000005be8 = 0x200000004380; *(uint32_t*)0x200000004380 = 0x280; *(uint32_t*)0x200000004384 = 0; *(uint64_t*)0x200000004388 = 7; *(uint64_t*)0x200000004390 = 1; *(uint64_t*)0x200000004398 = 2; *(uint64_t*)0x2000000043a0 = 0x9b; *(uint64_t*)0x2000000043a8 = 0xa; *(uint32_t*)0x2000000043b0 = 0x40; *(uint32_t*)0x2000000043b4 = 0x2b; *(uint64_t*)0x2000000043b8 = 1; *(uint64_t*)0x2000000043c0 = 0; *(uint64_t*)0x2000000043c8 = 0xf5; *(uint64_t*)0x2000000043d0 = 7; *(uint64_t*)0x2000000043d8 = 8; *(uint64_t*)0x2000000043e0 = 7; *(uint32_t*)0x2000000043e8 = 5; *(uint32_t*)0x2000000043ec = 9; *(uint32_t*)0x2000000043f0 = 0x1b; *(uint32_t*)0x2000000043f4 = 0xa000; *(uint32_t*)0x2000000043f8 = 4; *(uint32_t*)0x2000000043fc = r[10]; *(uint32_t*)0x200000004400 = r[12]; *(uint32_t*)0x200000004404 = 4; *(uint32_t*)0x200000004408 = 0x10000; *(uint32_t*)0x20000000440c = 0; *(uint64_t*)0x200000004410 = 4; *(uint64_t*)0x200000004418 = 6; *(uint32_t*)0x200000004420 = 0; *(uint32_t*)0x200000004424 = 0x7f; *(uint64_t*)0x200000004428 = 1; *(uint64_t*)0x200000004430 = 0; *(uint64_t*)0x200000004438 = 9; *(uint64_t*)0x200000004440 = 4; *(uint32_t*)0x200000004448 = 9; *(uint32_t*)0x20000000444c = 0x101; *(uint64_t*)0x200000004450 = 0; *(uint64_t*)0x200000004458 = 0x80; *(uint64_t*)0x200000004460 = 0x80000001; *(uint64_t*)0x200000004468 = 8; *(uint64_t*)0x200000004470 = 0x7fffffffffffffff; *(uint64_t*)0x200000004478 = 0xc14; *(uint32_t*)0x200000004480 = 7; *(uint32_t*)0x200000004484 = 2; *(uint32_t*)0x200000004488 = 5; *(uint32_t*)0x20000000448c = 0x1000; *(uint32_t*)0x200000004490 = 7; *(uint32_t*)0x200000004494 = r[13]; *(uint32_t*)0x200000004498 = r[16]; *(uint32_t*)0x20000000449c = 7; *(uint32_t*)0x2000000044a0 = 3; *(uint32_t*)0x2000000044a4 = 0; *(uint64_t*)0x2000000044a8 = 1; *(uint64_t*)0x2000000044b0 = 0x8000000000000000; *(uint32_t*)0x2000000044b8 = 0; *(uint32_t*)0x2000000044bc = 9; *(uint64_t*)0x2000000044c0 = 3; *(uint64_t*)0x2000000044c8 = 1; *(uint64_t*)0x2000000044d0 = 7; *(uint64_t*)0x2000000044d8 = 3; *(uint32_t*)0x2000000044e0 = 0x10000; *(uint32_t*)0x2000000044e4 = 0xfff; *(uint64_t*)0x2000000044e8 = 6; *(uint64_t*)0x2000000044f0 = 3; *(uint64_t*)0x2000000044f8 = 4; *(uint64_t*)0x200000004500 = 0xffffffff; *(uint64_t*)0x200000004508 = 5; *(uint64_t*)0x200000004510 = 1; *(uint32_t*)0x200000004518 = 0xcf; *(uint32_t*)0x20000000451c = 5; *(uint32_t*)0x200000004520 = 2; *(uint32_t*)0x200000004524 = 0x3000; *(uint32_t*)0x200000004528 = 0xf; *(uint32_t*)0x20000000452c = r[17]; *(uint32_t*)0x200000004530 = r[18]; *(uint32_t*)0x200000004534 = 0xdda; *(uint32_t*)0x200000004538 = 0x800; *(uint32_t*)0x20000000453c = 0; *(uint64_t*)0x200000004540 = 0; *(uint64_t*)0x200000004548 = 0x480; *(uint32_t*)0x200000004550 = 1; *(uint32_t*)0x200000004554 = 7; memset((void*)0x200000004558, 39, 1); *(uint64_t*)0x200000004560 = 3; *(uint64_t*)0x200000004568 = 0; *(uint64_t*)0x200000004570 = 6; *(uint64_t*)0x200000004578 = 6; *(uint32_t*)0x200000004580 = 0xae90; *(uint32_t*)0x200000004584 = 0x7fff; *(uint64_t*)0x200000004588 = 5; *(uint64_t*)0x200000004590 = 2; *(uint64_t*)0x200000004598 = 0xffff; *(uint64_t*)0x2000000045a0 = 0xb6; *(uint64_t*)0x2000000045a8 = 9; *(uint64_t*)0x2000000045b0 = 8; *(uint32_t*)0x2000000045b8 = 0x200; *(uint32_t*)0x2000000045bc = 3; *(uint32_t*)0x2000000045c0 = 6; *(uint32_t*)0x2000000045c4 = 0x6000; *(uint32_t*)0x2000000045c8 = 0xfffffff7; *(uint32_t*)0x2000000045cc = r[19]; *(uint32_t*)0x2000000045d0 = r[20]; *(uint32_t*)0x2000000045d4 = 4; *(uint32_t*)0x2000000045d8 = 6; *(uint32_t*)0x2000000045dc = 0; *(uint64_t*)0x2000000045e0 = 0; *(uint64_t*)0x2000000045e8 = 3; *(uint32_t*)0x2000000045f0 = 6; *(uint32_t*)0x2000000045f4 = 0xfffffffd; memcpy((void*)0x2000000045f8, "wlan0\000", 6); *(uint64_t*)0x200000005bf0 = 0x200000004740; *(uint32_t*)0x200000004740 = 0xa0; *(uint32_t*)0x200000004744 = 0xfffffffe; *(uint64_t*)0x200000004748 = 0x7fff; *(uint64_t*)0x200000004750 = 1; *(uint64_t*)0x200000004758 = 2; *(uint64_t*)0x200000004760 = 8; *(uint64_t*)0x200000004768 = 0x8001; *(uint32_t*)0x200000004770 = 0x9000; *(uint32_t*)0x200000004774 = 0; *(uint64_t*)0x200000004778 = 3; *(uint64_t*)0x200000004780 = 4; *(uint64_t*)0x200000004788 = 0x4283; *(uint64_t*)0x200000004790 = 6; *(uint64_t*)0x200000004798 = 7; *(uint64_t*)0x2000000047a0 = 1; *(uint32_t*)0x2000000047a8 = 4; *(uint32_t*)0x2000000047ac = 0x8000; *(uint32_t*)0x2000000047b0 = 0x7f; *(uint32_t*)0x2000000047b4 = 0x2000; *(uint32_t*)0x2000000047b8 = 0xa; *(uint32_t*)0x2000000047bc = r[22]; *(uint32_t*)0x2000000047c0 = r[24]; *(uint32_t*)0x2000000047c4 = 2; *(uint32_t*)0x2000000047c8 = 9; *(uint32_t*)0x2000000047cc = 0; *(uint64_t*)0x2000000047d0 = 0; *(uint32_t*)0x2000000047d8 = 0; *(uint32_t*)0x2000000047dc = 0; *(uint64_t*)0x200000005bf8 = 0x200000004800; *(uint32_t*)0x200000004800 = 0x20; *(uint32_t*)0x200000004804 = 0; *(uint64_t*)0x200000004808 = 0xa; *(uint32_t*)0x200000004810 = 8; *(uint32_t*)0x200000004814 = 0; *(uint32_t*)0x200000004818 = 0; *(uint32_t*)0x20000000481c = 0; *(uint64_t*)0x200000005c00 = 0x200000005a40; *(uint32_t*)0x200000005a40 = 0x130; *(uint32_t*)0x200000005a44 = 0; *(uint64_t*)0x200000005a48 = 0x800; *(uint64_t*)0x200000005a50 = 0x10000000; *(uint32_t*)0x200000005a58 = 9; *(uint32_t*)0x200000005a5c = 0; memset((void*)0x200000005a60, 0, 16); *(uint32_t*)0x200000005a70 = 4; *(uint32_t*)0x200000005a74 = 0xfffffff9; *(uint64_t*)0x200000005a78 = 8; *(uint32_t*)0x200000005a80 = 0xd; *(uint32_t*)0x200000005a84 = r[25]; *(uint32_t*)0x200000005a88 = r[27]; *(uint16_t*)0x200000005a8c = 0x4000; memset((void*)0x200000005a8e, 0, 2); *(uint64_t*)0x200000005a90 = 0xe; *(uint64_t*)0x200000005a98 = 1; *(uint64_t*)0x200000005aa0 = 9; *(uint64_t*)0x200000005aa8 = 4; *(uint64_t*)0x200000005ab0 = 0x75; *(uint32_t*)0x200000005ab8 = 0x10; *(uint32_t*)0x200000005abc = 0; *(uint64_t*)0x200000005ac0 = 0; *(uint32_t*)0x200000005ac8 = 0x2a; *(uint32_t*)0x200000005acc = 0; *(uint64_t*)0x200000005ad0 = 4; *(uint32_t*)0x200000005ad8 = 0x647; *(uint32_t*)0x200000005adc = 0; *(uint64_t*)0x200000005ae0 = 8; *(uint32_t*)0x200000005ae8 = 0xfffffffa; *(uint32_t*)0x200000005aec = 0; *(uint32_t*)0x200000005af0 = 4; *(uint32_t*)0x200000005af4 = 9; *(uint32_t*)0x200000005af8 = 0xf1; *(uint32_t*)0x200000005afc = 7; memset((void*)0x200000005b00, 0, 112); syz_fuse_handle_req(/*fd=*/r[6], /*buf=*/0x200000000780, /*len=*/0x2000, /*res=*/0x200000005b80); break; case 33: res = syscall(__NR_socket, /*domain=*/0x10ul, /*type=*/3ul, /*proto=*/0x10); if (res != -1) r[28] = res; break; case 34: memcpy((void*)0x200000005c40, "SEG6\000", 5); syz_genetlink_get_family_id(/*name=*/0x200000005c40, /*fd=*/r[28]); break; case 35: syz_init_net_socket(/*domain=*/0x24, /*type=*/2, /*proto=*/0); break; case 36: res = -1; res = syz_io_uring_complete(/*ring_ptr=*/0); if (res != -1) r[29] = res; break; case 37: *(uint32_t*)0x200000005c84 = 0x9c5d; *(uint32_t*)0x200000005c88 = 2; *(uint32_t*)0x200000005c8c = 1; *(uint32_t*)0x200000005c90 = 0x253; *(uint32_t*)0x200000005c98 = r[15]; memset((void*)0x200000005c9c, 0, 12); res = -1; res = syz_io_uring_setup(/*entries=*/0x19f7, /*params=*/0x200000005c80, /*ring_ptr=*/0x200000005d00, /*sqes_ptr=*/0x200000005d40); if (res != -1) { r[30] = *(uint64_t*)0x200000005d00; r[31] = *(uint64_t*)0x200000005d40; } break; case 38: *(uint8_t*)0x200000005dc0 = 0xb; *(uint8_t*)0x200000005dc1 = 0x28; *(uint16_t*)0x200000005dc2 = 0; *(uint32_t*)0x200000005dc4 = 0; *(uint64_t*)0x200000005dc8 = 3; *(uint64_t*)0x200000005dd0 = 0x200000005d80; *(uint64_t*)0x200000005d80 = 0; *(uint64_t*)0x200000005d88 = 0; *(uint32_t*)0x200000005dd8 = 1; *(uint32_t*)0x200000005ddc = 0x10; *(uint64_t*)0x200000005de0 = 1; *(uint16_t*)0x200000005de8 = 0; *(uint16_t*)0x200000005dea = 0; memset((void*)0x200000005dec, 0, 20); syz_io_uring_submit(/*ring_ptr=*/r[30], /*sqes_ptr=*/r[31], /*sqe=*/0x200000005dc0); break; case 39: res = -1; res = syz_kvm_setup_syzos_vm(/*fd=*/r[15], /*usermem=*/0x200000bff000); if (res != -1) r[32] = res; break; case 40: *(uint64_t*)0x200000005e80 = 0; *(uint64_t*)0x200000005e88 = 0x200000005e00; *(uint64_t*)0x200000005e00 = 0x12c; *(uint64_t*)0x200000005e08 = 0x18; *(uint64_t*)0x200000005e10 = 0; *(uint64_t*)0x200000005e18 = 0; *(uint64_t*)0x200000005e20 = 0x18; *(uint64_t*)0x200000005e28 = 4; *(uint64_t*)0x200000005e30 = 0x12d; *(uint64_t*)0x200000005e38 = 0x18; *(uint64_t*)0x200000005e40 = 2; *(uint64_t*)0x200000005e90 = 0x48; syz_kvm_add_vcpu(/*vm=*/r[32], /*text=*/0x200000005e80); break; case 41: *(uint64_t*)0x200000006100 = 0; *(uint64_t*)0x200000006108 = 0x200000005ec0; memcpy((void*)0x200000005ec0, 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560); *(uint64_t*)0x200000006110 = 0x230; *(uint64_t*)0x200000006140 = 1; *(uint64_t*)0x200000006148 = 7; syz_kvm_setup_cpu(/*fd=*/r[14], /*cpufd=*/r[29], /*usermem=*/0x200000c37000, /*text=*/0x200000006100, /*ntext=*/1, /*flags=KVM_SETUP_PPC64_LE*/1, /*opts=*/0x200000006140, /*nopt=*/1); break; case 42: syz_kvm_setup_syzos_vm(/*fd=*/r[29], /*usermem=*/0x200000c00000); break; case 43: *(uint32_t*)0x200000006180 = 0; syz_memcpy_off(/*ring_ptr=*/r[30], /*flag_off=SQ_FLAGS_OFFSET*/0x114, /*src=*/0x200000006180, /*src_off=*/0, /*nbytes=*/4); break; case 44: *(uint64_t*)0x200000006240 = 5; res = syscall(__NR_socketcall, /*call=*/1ul, /*args=*/0x200000006240ul); if (res != -1) r[33] = res; break; case 45: *(uint32_t*)0x200000006340 = 0xfffffffa; *(uint32_t*)0x200000006344 = r[11]; *(uint32_t*)0x200000006348 = r[27]; *(uint32_t*)0x20000000634c = 3; *(uint32_t*)0x200000006350 = 0xffff; *(uint32_t*)0x200000006354 = 0xe6b; *(uint16_t*)0x200000006358 = 7; *(uint32_t*)0x20000000635c = 0; *(uint64_t*)0x200000006360 = 0x357b; *(uint64_t*)0x200000006368 = 3; *(uint64_t*)0x200000006370 = 0x8000000000000000; *(uint32_t*)0x200000006378 = 0x74; *(uint32_t*)0x20000000637c = r[21]; *(uint16_t*)0x200000006380 = 0xc0b; *(uint16_t*)0x200000006382 = 0; *(uint64_t*)0x200000006388 = 0x200000006280; memcpy((void*)0x200000006280, "\x70\x10\x15\x9f\x68\xd5\xae\x90\x71\x37\xfa\x70\xd2\x86\xa1\x8b\xa4\x83\x48\xf8\x8d\x1f\xa0\x97\xcf\xe8\x2b\xb9\x55\x9e\x66\xc9\x7b\x4c\xcf\x3a\xcd\x9c\xe2\x40\x54\x49\x07\xf4\x53\x81\x70\xe4\x5e\x0c\x6d\xe8\xad\xfb\x6a\xe9\x4e\xd4\x4b\x61\x6a\x63\x73\x78\x14\xf1\x89\x44\x73\xd9\x51\x9f\x21\x30\xe8\xa0\xe0\x61\xc9\x6e\x46\xa9\x9a\x53\x16\xe4\x6b\x6b\x46\x13\x48\xbb\x03\xdd\xda\xd7\x06\x75\xbc\xda\x59\x21\xbd\xb5\x03\x8c\xc7\xdc\xad\xe7\xba\x3e\x10\x6c\xf3\x15\xe2\xad\x48\x81\x8a\x62\xc7", 123); *(uint64_t*)0x200000006390 = 0x200000006300; memcpy((void*)0x200000006300, "\x13\x68\x24\x8a\xd9\x08\xeb\x42\x50\x81\x23\x9c\x0a\x10\xa5\x14\xef\x06\xf1\x6f\xa3\x8b\xc5\x2b\x0f\x03\xb0\x4d\x36\xf5\x44\x26\x3c\xb4\xa0\xa3\xff\xbb\xaf\xa8\x00\x89\xcf\x8b\x02\x84\x1d\xf4\x33\xc6\xb9\x7d\xa8\xfb\xfe\x28\x5f\xcc\xd0\x5a\xd4", 61); res = syscall(__NR_shmctl, /*shmid=*/0x80000000, /*cmd=*/0xeul, /*buf=*/0x200000006340ul); if (res != -1) { r[34] = *(uint32_t*)0x200000006348; r[35] = *(uint32_t*)0x20000000637c; } break; case 46: memcpy((void*)0x2000000061c0, "fuse\000", 5); memcpy((void*)0x200000006200, "./file0\000", 8); memcpy((void*)0x2000000063c0, "fd", 2); *(uint8_t*)0x2000000063c2 = 0x3d; sprintf((char*)0x2000000063c3, "0x%016llx", (long long)r[33]); *(uint8_t*)0x2000000063d5 = 0x2c; memcpy((void*)0x2000000063d6, "rootmode", 8); *(uint8_t*)0x2000000063de = 0x3d; sprintf((char*)0x2000000063df, "%023llo", (long long)0x1000); *(uint8_t*)0x2000000063f6 = 0x2c; memcpy((void*)0x2000000063f7, "user_id", 7); *(uint8_t*)0x2000000063fe = 0x3d; sprintf((char*)0x2000000063ff, "%020llu", (long long)r[23]); *(uint8_t*)0x200000006413 = 0x2c; memcpy((void*)0x200000006414, "group_id", 8); *(uint8_t*)0x20000000641c = 0x3d; sprintf((char*)0x20000000641d, "%020llu", (long long)r[34]); *(uint8_t*)0x200000006431 = 0x2c; memcpy((void*)0x200000006432, "blksize", 7); *(uint8_t*)0x200000006439 = 0x3d; sprintf((char*)0x20000000643a, "0x%016llx", (long long)0x600); *(uint8_t*)0x20000000644c = 0x2c; memcpy((void*)0x20000000644d, "max_read", 8); *(uint8_t*)0x200000006455 = 0x3d; sprintf((char*)0x200000006456, "0x%016llx", (long long)0); *(uint8_t*)0x200000006468 = 0x2c; memcpy((void*)0x200000006469, "blksize", 7); *(uint8_t*)0x200000006470 = 0x3d; sprintf((char*)0x200000006471, "0x%016llx", (long long)0x1e00); *(uint8_t*)0x200000006483 = 0x2c; memcpy((void*)0x200000006484, "max_read", 8); *(uint8_t*)0x20000000648c = 0x3d; sprintf((char*)0x20000000648d, "0x%016llx", (long long)0x100000001); *(uint8_t*)0x20000000649f = 0x2c; memcpy((void*)0x2000000064a0, "default_permissions", 19); *(uint8_t*)0x2000000064b3 = 0x2c; memcpy((void*)0x2000000064b4, "default_permissions", 19); *(uint8_t*)0x2000000064c7 = 0x2c; memcpy((void*)0x2000000064c8, "euid<", 5); sprintf((char*)0x2000000064cd, "%020llu", (long long)r[13]); *(uint8_t*)0x2000000064e1 = 0x2c; memcpy((void*)0x2000000064e2, "subj_user", 9); *(uint8_t*)0x2000000064eb = 0x3d; memset((void*)0x2000000064ec, 44, 1); *(uint8_t*)0x2000000064ed = 0x2c; memcpy((void*)0x2000000064ee, "uid<", 4); sprintf((char*)0x2000000064f2, "%020llu", (long long)r[26]); *(uint8_t*)0x200000006506 = 0x2c; memcpy((void*)0x200000006507, "audit", 5); *(uint8_t*)0x20000000650c = 0x2c; memcpy((void*)0x20000000650d, "dont_measure", 12); *(uint8_t*)0x200000006519 = 0x2c; *(uint8_t*)0x20000000651a = 0; memcpy((void*)0x200000006540, "\xd3\xaa\x92", 3); syz_mount_image(/*fs=*/0x2000000061c0, /*dir=*/0x200000006200, /*flags=MS_NOATIME*/0x400, /*opts=*/0x2000000063c0, /*chdir=*/0, /*size=*/0, /*img=*/0x200000006540); break; case 47: memcpy((void*)0x200000006580, "/dev/i2c-#\000", 11); syz_open_dev(/*dev=*/0x200000006580, /*id=*/0x800, /*flags=O_NOATIME*/0x40000); break; case 48: memcpy((void*)0x2000000065c0, "cgroup\000", 7); syz_open_procfs(/*pid=*/r[5], /*file=*/0x2000000065c0); break; case 49: syz_open_pts(/*fd=*/r[14], /*flags=O_TRUNC|O_WRONLY*/0x201); break; case 50: syz_pidfd_open(/*pid=*/r[35], /*flags=*/0); break; case 51: res = syscall(__NR_pkey_alloc, /*flags=*/0ul, /*val=PKEY_DISABLE_WRITE*/2ul); if (res != -1) r[36] = res; break; case 52: syz_pkey_set(/*key=*/r[36], /*val=*/0); break; case 53: syz_socket_connect_nvme_tcp(); break; case 54: *(uint8_t*)0x200000006600 = 0x12; *(uint8_t*)0x200000006601 = 1; *(uint16_t*)0x200000006602 = 0x310; *(uint8_t*)0x200000006604 = 0xf; *(uint8_t*)0x200000006605 = 0x36; *(uint8_t*)0x200000006606 = 0x49; *(uint8_t*)0x200000006607 = 8; *(uint16_t*)0x200000006608 = 0x7d0; *(uint16_t*)0x20000000660a = 0x4101; *(uint16_t*)0x20000000660c = 0x4624; *(uint8_t*)0x20000000660e = 1; *(uint8_t*)0x20000000660f = 2; *(uint8_t*)0x200000006610 = 3; *(uint8_t*)0x200000006611 = 1; *(uint8_t*)0x200000006612 = 9; *(uint8_t*)0x200000006613 = 2; *(uint16_t*)0x200000006614 = 0x4f2; *(uint8_t*)0x200000006616 = 3; *(uint8_t*)0x200000006617 = 1; *(uint8_t*)0x200000006618 = 0xa2; *(uint8_t*)0x200000006619 = 0x40; *(uint8_t*)0x20000000661a = 0x64; *(uint8_t*)0x20000000661b = 9; *(uint8_t*)0x20000000661c = 4; *(uint8_t*)0x20000000661d = 0xc2; *(uint8_t*)0x20000000661e = 7; *(uint8_t*)0x20000000661f = 0xa; *(uint8_t*)0x200000006620 = 0x50; *(uint8_t*)0x200000006621 = 0xb3; *(uint8_t*)0x200000006622 = 0x17; *(uint8_t*)0x200000006623 = 7; *(uint8_t*)0x200000006624 = 9; *(uint8_t*)0x200000006625 = 0x21; *(uint16_t*)0x200000006626 = 3; *(uint8_t*)0x200000006628 = 0xdf; *(uint8_t*)0x200000006629 = 1; *(uint8_t*)0x20000000662a = 0x22; *(uint16_t*)0x20000000662b = 0x238; *(uint8_t*)0x20000000662d = 7; *(uint8_t*)0x20000000662e = 0x24; *(uint8_t*)0x20000000662f = 1; *(uint8_t*)0x200000006630 = 2; *(uint8_t*)0x200000006631 = 2; *(uint16_t*)0x200000006632 = 2; *(uint8_t*)0x200000006634 = 0xb; *(uint8_t*)0x200000006635 = 0x24; *(uint8_t*)0x200000006636 = 2; *(uint8_t*)0x200000006637 = 1; *(uint8_t*)0x200000006638 = 0xde; *(uint8_t*)0x200000006639 = 2; *(uint8_t*)0x20000000663a = 0; *(uint8_t*)0x20000000663b = 5; memcpy((void*)0x20000000663c, "\x11\x6d\xf7", 3); *(uint8_t*)0x20000000663f = 0xa; *(uint8_t*)0x200000006640 = 0x24; *(uint8_t*)0x200000006641 = 2; *(uint8_t*)0x200000006642 = 2; *(uint16_t*)0x200000006643 = 8; *(uint16_t*)0x200000006645 = 3; *(uint8_t*)0x200000006647 = 7; memset((void*)0x200000006648, 59, 1); *(uint8_t*)0x200000006649 = 0xa; *(uint8_t*)0x20000000664a = 0x24; *(uint8_t*)0x20000000664b = 2; *(uint8_t*)0x20000000664c = 1; *(uint8_t*)0x20000000664d = 4; *(uint8_t*)0x20000000664e = 3; *(uint8_t*)0x20000000664f = 0x1a; *(uint8_t*)0x200000006650 = 9; memcpy((void*)0x200000006651, "\x0f\x58", 2); *(uint8_t*)0x200000006653 = 0xc; *(uint8_t*)0x200000006654 = 0x24; *(uint8_t*)0x200000006655 = 2; *(uint8_t*)0x200000006656 = 2; *(uint16_t*)0x200000006657 = 0xf270; *(uint16_t*)0x200000006659 = 0x100; *(uint8_t*)0x20000000665b = 7; memcpy((void*)0x20000000665c, "\x31\x29\xf9", 3); *(uint8_t*)0x20000000665f = 0xb; *(uint8_t*)0x200000006660 = 0x24; *(uint8_t*)0x200000006661 = 2; *(uint8_t*)0x200000006662 = 1; *(uint8_t*)0x200000006663 = 1; *(uint8_t*)0x200000006664 = 3; *(uint8_t*)0x200000006665 = 0xf9; *(uint8_t*)0x200000006666 = 0xa3; memcpy((void*)0x200000006667, "\x54\x06\x13", 3); *(uint8_t*)0x20000000666a = 9; *(uint8_t*)0x20000000666b = 5; *(uint8_t*)0x20000000666c = 3; *(uint8_t*)0x20000000666d = 0x38; *(uint16_t*)0x20000000666e = 8; *(uint8_t*)0x200000006670 = 1; *(uint8_t*)0x200000006671 = 0xf9; *(uint8_t*)0x200000006672 = 0; *(uint8_t*)0x200000006673 = 7; *(uint8_t*)0x200000006674 = 0x25; *(uint8_t*)0x200000006675 = 1; *(uint8_t*)0x200000006676 = 1; *(uint8_t*)0x200000006677 = 0x80; *(uint16_t*)0x200000006678 = 0xffb0; *(uint8_t*)0x20000000667a = 0x62; *(uint8_t*)0x20000000667b = 0xe; memcpy((void*)0x20000000667c, "\x0b\xef\x67\x9d\x63\x59\xd7\x1a\x14\x4a\x38\xa2\x28\x34\xd1\x2b\xd1\x9c\x60\xb6\x58\x29\xf4\x4e\xbe\x6b\x12\x58\xa3\xa7\xa0\xcc\x60\xf3\x00\x07\xc2\xc4\xd2\xa3\xcb\x88\xfb\x6b\xeb\x58\x0e\x62\x81\x47\x11\x4f\xfc\x6a\x4e\x39\xb1\x9e\x71\x8f\xc2\xcd\x0f\xa5\xaf\x68\x86\x49\xab\xe3\xdb\x58\xd0\x70\x72\x03\x28\x3b\x6b\xdc\xa0\x5f\x49\xfb\x16\xb3\x61\x8f\xcf\x4d\xd0\x1c\xb2\xef\x35\x09", 96); *(uint8_t*)0x2000000066dc = 9; *(uint8_t*)0x2000000066dd = 5; *(uint8_t*)0x2000000066de = 4; *(uint8_t*)0x2000000066df = 0; *(uint16_t*)0x2000000066e0 = 0x20; *(uint8_t*)0x2000000066e2 = 1; *(uint8_t*)0x2000000066e3 = 2; *(uint8_t*)0x2000000066e4 = 5; *(uint8_t*)0x2000000066e5 = 0x4e; *(uint8_t*)0x2000000066e6 = 0xa; memcpy((void*)0x2000000066e7, "\xaa\xde\x99\xcc\xf3\x48\x06\x1a\xd9\x22\x25\xe0\x5a\x39\x6a\x2e\xbe\x89\x2c\xa6\x5d\xe9\xef\xa6\x65\x82\x1e\x34\x20\x0c\x5c\xaa\x94\x3c\x9b\x1a\x3e\xb1\x08\x28\xe1\x38\x15\xe6\x12\x0c\x47\x87\xa4\xd3\x95\xb1\xe3\x2a\x8b\xa1\xff\xb9\x91\x37\x58\x79\xd5\x17\x86\x2d\xe6\xe9\xcb\x6f\x72\x33\x35\xdd\x15\x6a", 76); *(uint8_t*)0x200000006733 = 9; *(uint8_t*)0x200000006734 = 5; *(uint8_t*)0x200000006735 = 3; *(uint8_t*)0x200000006736 = 0xc; *(uint16_t*)0x200000006737 = 0x3ff; *(uint8_t*)0x200000006739 = 7; *(uint8_t*)0x20000000673a = 0; *(uint8_t*)0x20000000673b = 0x7f; *(uint8_t*)0x20000000673c = 0x33; *(uint8_t*)0x20000000673d = 0xe; memcpy((void*)0x20000000673e, "\x08\xb9\x28\xc5\x63\xb3\xfb\xc1\x36\xbe\xaf\x22\xbf\x46\xe0\xcf\x55\xe3\xf2\x62\x48\x5f\x30\xb2\x8a\x3f\x9a\x3e\xc9\x01\xce\x80\x66\xc6\x78\x8d\x46\x95\x26\xc5\x5b\xf0\xc2\xb3\xca\x50\x05\x53\x9a", 49); *(uint8_t*)0x20000000676f = 9; *(uint8_t*)0x200000006770 = 5; *(uint8_t*)0x200000006771 = 0xb; *(uint8_t*)0x200000006772 = 4; *(uint16_t*)0x200000006773 = 0x3ff; *(uint8_t*)0x200000006775 = 3; *(uint8_t*)0x200000006776 = 0x40; *(uint8_t*)0x200000006777 = 0x7f; *(uint8_t*)0x200000006778 = 7; *(uint8_t*)0x200000006779 = 0x25; *(uint8_t*)0x20000000677a = 1; *(uint8_t*)0x20000000677b = 0x87; *(uint8_t*)0x20000000677c = 9; *(uint16_t*)0x20000000677d = 0x4e; *(uint8_t*)0x20000000677f = 0xcb; *(uint8_t*)0x200000006780 = 0x11; memcpy((void*)0x200000006781, "\x3b\x9d\xca\xcc\x67\x90\x86\xd7\x8f\x92\x7a\xb6\x34\x93\x5a\x18\x81\x3b\x23\xcc\xef\xfe\xa6\x9b\x63\x0a\xa9\x7c\xc4\x69\x90\x7a\xfa\xc2\xa3\x03\x27\xad\xeb\x90\x1d\x9f\xb9\x00\xad\x82\x13\x80\x98\xcb\xff\x5f\xed\x7f\xee\x2c\x7d\x70\x12\x90\xce\x4a\xd0\x20\xa9\xda\x29\x67\x5f\x8f\x05\x13\x99\x87\x9d\xb5\x70\x22\xb8\x9c\x99\x01\x20\x51\x3a\xaa\x70\xc5\x18\x47\xb1\x28\xdd\x73\xbd\xea\x25\xcb\xb5\x45\xc1\xae\x83\x52\x02\x4c\xa9\x3c\xd7\xea\x88\x1c\xbb\x09\x20\xee\xde\xf0\x72\xef\xe9\xda\x61\xb7\xbd\x77\xa3\xc0\x85\xd7\x12\xc1\x42\xca\x88\xc3\x9f\x8e\xdd\x17\xd6\xfb\x9a\x7e\xf8\xd0\xfa\xd5\xa1\x5a\x33\x3e\x7e\xd0\x5e\x7e\x9a\xe6\xe2\xa4\x64\xc3\x15\x9a\xb1\xa6\x0e\x33\xaf\xbf\x29\xa2\xf6\x78\xc8\xc9\xe2\xf8\xf7\xa8\xd0\x3d\x55\x82\x52\x9b\x27\x7b\x4b\xe8\x55\x83\xe5\xd8\x1b\xc9\x57\x49\x77\x30\x42", 201); *(uint8_t*)0x20000000684a = 9; *(uint8_t*)0x20000000684b = 5; *(uint8_t*)0x20000000684c = 1; *(uint8_t*)0x20000000684d = 3; *(uint16_t*)0x20000000684e = 8; *(uint8_t*)0x200000006850 = 0xe; *(uint8_t*)0x200000006851 = 8; *(uint8_t*)0x200000006852 = 0x7f; *(uint8_t*)0x200000006853 = 0x72; *(uint8_t*)0x200000006854 = 6; memcpy((void*)0x200000006855, "\x6e\xe2\x41\x04\x69\xb7\xa8\xb2\x3e\x32\x55\xa5\x54\xb6\x3d\x5b\xeb\x1b\x34\xb4\x87\x18\x94\xe3\xdf\x69\xe7\x55\x8c\xe5\x6c\xc8\x3b\x83\xae\x1a\xc9\xd1\xde\xc0\x88\x2d\x04\x0a\x78\x01\xa3\x00\xc7\xea\xc2\x6d\x78\xd2\xda\xff\x6b\xd4\x7c\xac\xa5\x00\xd4\x6c\x1b\x5a\x0b\x9e\x1a\xda\x0e\x7b\x60\x6b\x6f\xd6\xb3\x9d\xb8\x1c\x7c\x95\x4c\x04\xd4\xed\xe9\x80\xea\x2c\xa8\x0b\x11\x3b\xdb\x4b\xe7\x47\xe1\xb6\xdc\x92\x81\xd7\x7e\x85\x68\x3a\xaa\xc6\x53\x4c", 112); *(uint8_t*)0x2000000068c5 = 9; *(uint8_t*)0x2000000068c6 = 5; *(uint8_t*)0x2000000068c7 = 0xb; *(uint8_t*)0x2000000068c8 = 0xc; *(uint16_t*)0x2000000068c9 = 0x60e1; *(uint8_t*)0x2000000068cb = 0; *(uint8_t*)0x2000000068cc = 1; *(uint8_t*)0x2000000068cd = 7; *(uint8_t*)0x2000000068ce = 9; *(uint8_t*)0x2000000068cf = 5; *(uint8_t*)0x2000000068d0 = 0; *(uint8_t*)0x2000000068d1 = 0; *(uint16_t*)0x2000000068d2 = 0x10; *(uint8_t*)0x2000000068d4 = 5; *(uint8_t*)0x2000000068d5 = 1; *(uint8_t*)0x2000000068d6 = 0x77; *(uint8_t*)0x2000000068d7 = 9; *(uint8_t*)0x2000000068d8 = 5; *(uint8_t*)0x2000000068d9 = 5; *(uint8_t*)0x2000000068da = 0; *(uint16_t*)0x2000000068db = 0x208; *(uint8_t*)0x2000000068dd = 0x1b; *(uint8_t*)0x2000000068de = 9; *(uint8_t*)0x2000000068df = 7; *(uint8_t*)0x2000000068e0 = 9; *(uint8_t*)0x2000000068e1 = 5; *(uint8_t*)0x2000000068e2 = 0xf; *(uint8_t*)0x2000000068e3 = 0; *(uint16_t*)0x2000000068e4 = 0x40; *(uint8_t*)0x2000000068e6 = 0x30; *(uint8_t*)0x2000000068e7 = 5; *(uint8_t*)0x2000000068e8 = 7; *(uint8_t*)0x2000000068e9 = 0x50; *(uint8_t*)0x2000000068ea = 6; memcpy((void*)0x2000000068eb, "\x01\x1d\xaf\x9a\xd3\xae\xa9\x56\xd0\x18\x4e\x89\x07\xd7\xb0\xb0\xa6\xaa\x9e\x92\x1a\xc6\x4d\x7a\x9e\x5a\x0c\xe5\xb5\xe0\xaf\xb4\x78\x68\xc9\xc4\xa7\x6b\x65\x09\x83\x5b\xf9\xee\x45\xa7\x89\x1e\xaa\xd1\x72\xa8\x75\x63\x4f\x7f\x36\x26\x01\x24\x66\x9b\x2d\x1b\x04\xc2\xfd\xa3\x8c\xc9\x36\x92\x1c\xb5\x61\x24\x5e\xfa", 78); *(uint8_t*)0x200000006939 = 0xb7; *(uint8_t*)0x20000000693a = 0x21; memcpy((void*)0x20000000693b, "\x53\x54\x2a\x37\x44\x9c\x9d\x1a\x4e\x69\x6a\x99\x52\x7d\x5a\xd5\xbd\xad\x1c\x7e\x72\x41\x28\xdf\x50\x29\x5a\xa0\xc6\x14\x01\xca\x6c\xd5\xcd\x35\x69\x77\xf6\x17\xe8\xb1\x14\x48\x46\x62\x69\x11\x6a\xf9\x3b\x9d\xce\x05\xde\xd4\x87\x92\x71\x9f\x65\xbf\xa9\x1d\xa1\x6b\x85\xee\x1d\x62\x36\x08\x4d\x81\x70\xf9\x7c\x0a\x74\xf1\x02\x66\x3c\x64\x5b\x0e\xe1\xb0\xfa\x79\x04\xe6\x46\x43\x8d\x8b\x16\x21\x86\x04\x56\x1c\x1a\xbb\x98\x28\x9e\x3e\xcb\xa8\x8e\x78\xf6\x73\x61\x47\x87\x74\x46\x2a\x4d\x82\x74\x96\x46\x45\x20\x04\xb2\x48\x20\x82\xe9\xc1\xb2\xf2\x97\x24\x19\xf6\xf7\x52\xe1\xbe\xc5\xe1\x92\x5f\xce\x21\x5e\xdb\x82\x65\x34\x4d\xa8\x5b\x85\x16\x4d\xb3\xc6\x33\xe4\xe4\x31\xfe\xc4\xc6\x09\x66\x4e\xac\x2b\x6b\x1f\x5f\x7b\xdc\x10", 181); *(uint8_t*)0x2000000069f0 = 9; *(uint8_t*)0x2000000069f1 = 5; *(uint8_t*)0x2000000069f2 = 0xc; *(uint8_t*)0x2000000069f3 = 0x10; *(uint16_t*)0x2000000069f4 = 0x10; *(uint8_t*)0x2000000069f6 = 3; *(uint8_t*)0x2000000069f7 = 0xf9; *(uint8_t*)0x2000000069f8 = -1; *(uint8_t*)0x2000000069f9 = 0xba; *(uint8_t*)0x2000000069fa = 0x23; memcpy((void*)0x2000000069fb, "\x5c\x48\xa5\x1f\x46\xfa\x07\x8d\x84\xce\x43\x4e\x72\x2a\x7f\xa4\xe7\x02\x1a\xe9\xd9\xb7\x66\x77\x36\x6d\xe6\xa1\x0a\xb3\xe9\x4e\x09\x69\xd7\xfc\x2a\x24\x53\x6e\x11\x50\xd9\x46\x72\xc5\x41\x8b\x02\x95\x1d\xef\x7e\x20\xc7\xdf\xe0\xaa\x26\xad\xbf\x0b\xfd\x8f\x6d\xd3\x51\xfa\x30\x99\x07\x13\x53\x71\x34\xaf\x9c\x14\xfa\x84\xde\xe2\xb9\x5a\xf8\xe1\x34\x54\x2b\x5a\x1a\xd5\x40\x32\x9a\x97\xcb\xdd\x1a\x24\x22\xf1\x3e\x6e\x03\xb4\x9f\x71\x05\xa6\xbf\x49\x00\xea\x72\x3f\xbe\x14\xf2\x1d\x18\x2a\xee\xf2\xcf\x51\x62\x59\x1f\x8b\xd3\x8b\x85\xd4\x5d\x72\x3c\xef\x02\x13\x2b\x5e\x45\x46\x7d\xd8\xd4\x30\xc3\x78\xb8\xbf\x2d\x98\x40\x32\x67\x01\x03\x79\xde\x7b\xd0\x4c\x80\x0d\xfd\x5f\xae\x0c\x0d\xda\xc0\xb5\xcf\xfd\xe9\x8c\xa4\x00\xdc\xe3\x0d\xdd", 184); *(uint8_t*)0x200000006ab3 = 9; *(uint8_t*)0x200000006ab4 = 4; *(uint8_t*)0x200000006ab5 = 0xfc; *(uint8_t*)0x200000006ab6 = 4; *(uint8_t*)0x200000006ab7 = 1; *(uint8_t*)0x200000006ab8 = -1; *(uint8_t*)0x200000006ab9 = 6; *(uint8_t*)0x200000006aba = 0x39; *(uint8_t*)0x200000006abb = 0xc; *(uint8_t*)0x200000006abc = 9; *(uint8_t*)0x200000006abd = 5; *(uint8_t*)0x200000006abe = 0; *(uint8_t*)0x200000006abf = 2; *(uint16_t*)0x200000006ac0 = 0x400; *(uint8_t*)0x200000006ac2 = 9; *(uint8_t*)0x200000006ac3 = 0xdf; *(uint8_t*)0x200000006ac4 = 2; *(uint8_t*)0x200000006ac5 = 7; *(uint8_t*)0x200000006ac6 = 0x25; *(uint8_t*)0x200000006ac7 = 1; *(uint8_t*)0x200000006ac8 = 3; *(uint8_t*)0x200000006ac9 = 8; *(uint16_t*)0x200000006aca = 0x8000; *(uint8_t*)0x200000006acc = 9; *(uint8_t*)0x200000006acd = 4; *(uint8_t*)0x200000006ace = 0x9d; *(uint8_t*)0x200000006acf = 1; *(uint8_t*)0x200000006ad0 = 3; *(uint8_t*)0x200000006ad1 = 0x48; *(uint8_t*)0x200000006ad2 = 0x48; *(uint8_t*)0x200000006ad3 = 0x40; *(uint8_t*)0x200000006ad4 = 0xa; *(uint8_t*)0x200000006ad5 = 9; *(uint8_t*)0x200000006ad6 = 5; *(uint8_t*)0x200000006ad7 = 1; *(uint8_t*)0x200000006ad8 = 0x10; *(uint16_t*)0x200000006ad9 = 0x40; *(uint8_t*)0x200000006adb = 2; *(uint8_t*)0x200000006adc = 0xf1; *(uint8_t*)0x200000006add = 0xc; *(uint8_t*)0x200000006ade = 7; *(uint8_t*)0x200000006adf = 0x25; *(uint8_t*)0x200000006ae0 = 1; *(uint8_t*)0x200000006ae1 = 0x81; *(uint8_t*)0x200000006ae2 = 0x81; *(uint16_t*)0x200000006ae3 = 5; *(uint8_t*)0x200000006ae5 = 9; *(uint8_t*)0x200000006ae6 = 5; *(uint8_t*)0x200000006ae7 = 7; *(uint8_t*)0x200000006ae8 = 8; *(uint16_t*)0x200000006ae9 = 0x40; *(uint8_t*)0x200000006aeb = 6; *(uint8_t*)0x200000006aec = 0; *(uint8_t*)0x200000006aed = 1; *(uint8_t*)0x200000006aee = 7; *(uint8_t*)0x200000006aef = 0x25; *(uint8_t*)0x200000006af0 = 1; *(uint8_t*)0x200000006af1 = 2; *(uint8_t*)0x200000006af2 = 0; *(uint16_t*)0x200000006af3 = 0x10; *(uint8_t*)0x200000006af5 = 6; *(uint8_t*)0x200000006af6 = 0xe; memcpy((void*)0x200000006af7, "\x55\x5d\xc7\x8c", 4); *(uint8_t*)0x200000006afb = 9; *(uint8_t*)0x200000006afc = 5; *(uint8_t*)0x200000006afd = 5; *(uint8_t*)0x200000006afe = 4; *(uint16_t*)0x200000006aff = 0x200; *(uint8_t*)0x200000006b01 = 9; *(uint8_t*)0x200000006b02 = 0x40; *(uint8_t*)0x200000006b03 = 3; *(uint32_t*)0x200000006c00 = 0xa; *(uint64_t*)0x200000006c04 = 0x200000006b40; *(uint8_t*)0x200000006b40 = 0xa; *(uint8_t*)0x200000006b41 = 6; *(uint16_t*)0x200000006b42 = 0x200; *(uint8_t*)0x200000006b44 = 0x3b; *(uint8_t*)0x200000006b45 = 5; *(uint8_t*)0x200000006b46 = 9; *(uint8_t*)0x200000006b47 = 0x40; *(uint8_t*)0x200000006b48 = 0xa4; *(uint8_t*)0x200000006b49 = 0; *(uint32_t*)0x200000006c0c = 0x30; *(uint64_t*)0x200000006c10 = 0x200000006b80; *(uint8_t*)0x200000006b80 = 5; *(uint8_t*)0x200000006b81 = 0xf; *(uint16_t*)0x200000006b82 = 0x30; *(uint8_t*)0x200000006b84 = 3; *(uint8_t*)0x200000006b85 = 3; *(uint8_t*)0x200000006b86 = 0x10; *(uint8_t*)0x200000006b87 = 0xb; *(uint8_t*)0x200000006b88 = 0x10; *(uint8_t*)0x200000006b89 = 0x10; *(uint8_t*)0x200000006b8a = 0xa; *(uint8_t*)0x200000006b8b = 0x1c; STORE_BY_BITMASK(uint32_t, , 0x200000006b8c, 1, 0, 5); STORE_BY_BITMASK(uint32_t, , 0x200000006b8c, 0x7ffffd3, 5, 27); *(uint16_t*)0x200000006b90 = 0xff00; *(uint16_t*)0x200000006b92 = 0x1fb; *(uint32_t*)0x200000006b94 = 0; *(uint8_t*)0x200000006b98 = 0x18; *(uint8_t*)0x200000006b99 = 0x10; *(uint8_t*)0x200000006b9a = 0xa; *(uint8_t*)0x200000006b9b = 0xf; STORE_BY_BITMASK(uint32_t, , 0x200000006b9c, 3, 0, 5); STORE_BY_BITMASK(uint32_t, , 0x200000006b9c, 8, 5, 27); *(uint16_t*)0x200000006ba0 = 0xff00; *(uint16_t*)0x200000006ba2 = 0xd00; *(uint32_t*)0x200000006ba4 = 0; *(uint32_t*)0x200000006ba8 = 0xffc0cf; *(uint32_t*)0x200000006bac = 0xff0000; *(uint32_t*)0x200000006c18 = 1; *(uint32_t*)0x200000006c1c = 4; *(uint64_t*)0x200000006c20 = 0x200000006bc0; *(uint8_t*)0x200000006bc0 = 4; *(uint8_t*)0x200000006bc1 = 3; *(uint16_t*)0x200000006bc2 = 0x42f; res = -1; res = syz_usb_connect(/*speed=USB_SPEED_HIGH*/3, /*dev_len=*/0x504, /*dev=*/0x200000006600, /*conn_descs=*/0x200000006c00); if (res != -1) r[37] = res; break; case 55: *(uint8_t*)0x200000006c40 = 0x12; *(uint8_t*)0x200000006c41 = 1; *(uint16_t*)0x200000006c42 = 0x200; *(uint8_t*)0x200000006c44 = -1; *(uint8_t*)0x200000006c45 = -1; *(uint8_t*)0x200000006c46 = -1; *(uint8_t*)0x200000006c47 = 0x40; *(uint16_t*)0x200000006c48 = 0xcf3; *(uint16_t*)0x200000006c4a = 0x9271; *(uint16_t*)0x200000006c4c = 0x108; *(uint8_t*)0x200000006c4e = 1; *(uint8_t*)0x200000006c4f = 2; *(uint8_t*)0x200000006c50 = 3; *(uint8_t*)0x200000006c51 = 1; *(uint8_t*)0x200000006c52 = 9; *(uint8_t*)0x200000006c53 = 2; *(uint16_t*)0x200000006c54 = 0x48; *(uint8_t*)0x200000006c56 = 1; *(uint8_t*)0x200000006c57 = 1; *(uint8_t*)0x200000006c58 = 0; *(uint8_t*)0x200000006c59 = 0x80; *(uint8_t*)0x200000006c5a = 0xfa; *(uint8_t*)0x200000006c5b = 9; *(uint8_t*)0x200000006c5c = 4; *(uint8_t*)0x200000006c5d = 0; *(uint8_t*)0x200000006c5e = 0; *(uint8_t*)0x200000006c5f = 6; *(uint8_t*)0x200000006c60 = -1; *(uint8_t*)0x200000006c61 = 0; *(uint8_t*)0x200000006c62 = 0; *(uint8_t*)0x200000006c63 = 0; *(uint8_t*)0x200000006c64 = 9; *(uint8_t*)0x200000006c65 = 5; *(uint8_t*)0x200000006c66 = 1; *(uint8_t*)0x200000006c67 = 2; *(uint16_t*)0x200000006c68 = 0x200; *(uint8_t*)0x200000006c6a = 0; *(uint8_t*)0x200000006c6b = 0; *(uint8_t*)0x200000006c6c = 0; *(uint8_t*)0x200000006c6d = 9; *(uint8_t*)0x200000006c6e = 5; *(uint8_t*)0x200000006c6f = 0x82; *(uint8_t*)0x200000006c70 = 2; *(uint16_t*)0x200000006c71 = 0x200; *(uint8_t*)0x200000006c73 = 0; *(uint8_t*)0x200000006c74 = 0; *(uint8_t*)0x200000006c75 = 0; *(uint8_t*)0x200000006c76 = 9; *(uint8_t*)0x200000006c77 = 5; *(uint8_t*)0x200000006c78 = 0x83; *(uint8_t*)0x200000006c79 = 3; *(uint16_t*)0x200000006c7a = 0x40; *(uint8_t*)0x200000006c7c = 1; *(uint8_t*)0x200000006c7d = 0; *(uint8_t*)0x200000006c7e = 0; *(uint8_t*)0x200000006c7f = 9; *(uint8_t*)0x200000006c80 = 5; *(uint8_t*)0x200000006c81 = 4; *(uint8_t*)0x200000006c82 = 3; *(uint16_t*)0x200000006c83 = 0x40; *(uint8_t*)0x200000006c85 = 1; *(uint8_t*)0x200000006c86 = 0; *(uint8_t*)0x200000006c87 = 0; *(uint8_t*)0x200000006c88 = 9; *(uint8_t*)0x200000006c89 = 5; *(uint8_t*)0x200000006c8a = 5; *(uint8_t*)0x200000006c8b = 2; *(uint16_t*)0x200000006c8c = 0x200; *(uint8_t*)0x200000006c8e = 0; *(uint8_t*)0x200000006c8f = 0; *(uint8_t*)0x200000006c90 = 0; *(uint8_t*)0x200000006c91 = 9; *(uint8_t*)0x200000006c92 = 5; *(uint8_t*)0x200000006c93 = 6; *(uint8_t*)0x200000006c94 = 2; *(uint16_t*)0x200000006c95 = 0x200; *(uint8_t*)0x200000006c97 = 0; *(uint8_t*)0x200000006c98 = 0; *(uint8_t*)0x200000006c99 = 0; res = -1; res = syz_usb_connect_ath9k(/*speed=*/3, /*dev_len=*/0x5a, /*dev=*/0x200000006c40, /*conn_descs=*/0); if (res != -1) r[38] = res; break; case 56: *(uint8_t*)0x200000006cc0 = 0x12; *(uint8_t*)0x200000006cc1 = 1; *(uint16_t*)0x200000006cc2 = 0x310; *(uint8_t*)0x200000006cc4 = 2; *(uint8_t*)0x200000006cc5 = 0; *(uint8_t*)0x200000006cc6 = 0; *(uint8_t*)0x200000006cc7 = 8; *(uint16_t*)0x200000006cc8 = 0x525; *(uint16_t*)0x200000006cca = 0xa4a1; *(uint16_t*)0x200000006ccc = 0x40; *(uint8_t*)0x200000006cce = 1; *(uint8_t*)0x200000006ccf = 2; *(uint8_t*)0x200000006cd0 = 3; *(uint8_t*)0x200000006cd1 = 1; *(uint8_t*)0x200000006cd2 = 9; *(uint8_t*)0x200000006cd3 = 2; *(uint16_t*)0x200000006cd4 = 0x7d; *(uint8_t*)0x200000006cd6 = 1; *(uint8_t*)0x200000006cd7 = 1; *(uint8_t*)0x200000006cd8 = 6; *(uint8_t*)0x200000006cd9 = 0x10; *(uint8_t*)0x200000006cda = 0xb; *(uint8_t*)0x200000006cdb = 9; *(uint8_t*)0x200000006cdc = 4; *(uint8_t*)0x200000006cdd = 0; *(uint8_t*)0x200000006cde = 4; *(uint8_t*)0x200000006cdf = 3; *(uint8_t*)0x200000006ce0 = 2; *(uint8_t*)0x200000006ce1 = 6; *(uint8_t*)0x200000006ce2 = 0; *(uint8_t*)0x200000006ce3 = 0xe; *(uint8_t*)0x200000006ce4 = 0xb; *(uint8_t*)0x200000006ce5 = 0x24; *(uint8_t*)0x200000006ce6 = 6; *(uint8_t*)0x200000006ce7 = 0; *(uint8_t*)0x200000006ce8 = 0; memcpy((void*)0x200000006ce9, "\xd6\x01\x32\xf1\x49\xc6", 6); *(uint8_t*)0x200000006cef = 5; *(uint8_t*)0x200000006cf0 = 0x24; *(uint8_t*)0x200000006cf1 = 0; *(uint16_t*)0x200000006cf2 = 0xbb8; *(uint8_t*)0x200000006cf4 = 0xd; *(uint8_t*)0x200000006cf5 = 0x24; *(uint8_t*)0x200000006cf6 = 0xf; *(uint8_t*)0x200000006cf7 = 1; *(uint32_t*)0x200000006cf8 = 7; *(uint16_t*)0x200000006cfc = 0x32a; *(uint16_t*)0x200000006cfe = 8; *(uint8_t*)0x200000006d00 = 0x1f; *(uint8_t*)0x200000006d01 = 5; *(uint8_t*)0x200000006d02 = 0x24; *(uint8_t*)0x200000006d03 = 0x15; *(uint16_t*)0x200000006d04 = 0x101; *(uint8_t*)0x200000006d06 = 0x15; *(uint8_t*)0x200000006d07 = 0x24; *(uint8_t*)0x200000006d08 = 0x12; *(uint16_t*)0x200000006d09 = 0xfffc; *(uint64_t*)0x200000006d0b = 0x14f5e048ba817a3; *(uint64_t*)0x200000006d13 = 0x2a397ecbffc007a6; *(uint8_t*)0x200000006d1b = 7; *(uint8_t*)0x200000006d1c = 0x24; *(uint8_t*)0x200000006d1d = 0xa; *(uint8_t*)0x200000006d1e = 0xb; *(uint8_t*)0x200000006d1f = 9; *(uint8_t*)0x200000006d20 = 0xf; *(uint8_t*)0x200000006d21 = 2; *(uint8_t*)0x200000006d22 = 5; *(uint8_t*)0x200000006d23 = 0x24; *(uint8_t*)0x200000006d24 = 1; *(uint8_t*)0x200000006d25 = 1; *(uint8_t*)0x200000006d26 = -1; *(uint8_t*)0x200000006d27 = 5; *(uint8_t*)0x200000006d28 = 0x24; *(uint8_t*)0x200000006d29 = 0x15; *(uint16_t*)0x200000006d2a = 0x7ff; *(uint8_t*)0x200000006d2c = 8; *(uint8_t*)0x200000006d2d = 0x24; *(uint8_t*)0x200000006d2e = 0x1c; *(uint16_t*)0x200000006d2f = 5; *(uint8_t*)0x200000006d31 = 0x32; *(uint16_t*)0x200000006d32 = 0xa; *(uint8_t*)0x200000006d34 = 9; *(uint8_t*)0x200000006d35 = 5; *(uint8_t*)0x200000006d36 = 0x81; *(uint8_t*)0x200000006d37 = 3; *(uint16_t*)0x200000006d38 = 0x10; *(uint8_t*)0x200000006d3a = 7; *(uint8_t*)0x200000006d3b = 0x99; *(uint8_t*)0x200000006d3c = 0xb2; *(uint8_t*)0x200000006d3d = 9; *(uint8_t*)0x200000006d3e = 5; *(uint8_t*)0x200000006d3f = 0x82; *(uint8_t*)0x200000006d40 = 2; *(uint16_t*)0x200000006d41 = 8; *(uint8_t*)0x200000006d43 = 0x1a; *(uint8_t*)0x200000006d44 = 7; *(uint8_t*)0x200000006d45 = 0xc4; *(uint8_t*)0x200000006d46 = 9; *(uint8_t*)0x200000006d47 = 5; *(uint8_t*)0x200000006d48 = 3; *(uint8_t*)0x200000006d49 = 2; *(uint16_t*)0x200000006d4a = 0x3ff; *(uint8_t*)0x200000006d4c = 0xa6; *(uint8_t*)0x200000006d4d = 3; *(uint8_t*)0x200000006d4e = 0xa7; *(uint32_t*)0x200000007240 = 0xa; *(uint64_t*)0x200000007244 = 0x200000006d80; *(uint8_t*)0x200000006d80 = 0xa; *(uint8_t*)0x200000006d81 = 6; *(uint16_t*)0x200000006d82 = 0x300; *(uint8_t*)0x200000006d84 = 0xfb; *(uint8_t*)0x200000006d85 = 3; *(uint8_t*)0x200000006d86 = 0xc; *(uint8_t*)0x200000006d87 = -1; *(uint8_t*)0x200000006d88 = 1; *(uint8_t*)0x200000006d89 = 0; *(uint32_t*)0x20000000724c = 0x3c; *(uint64_t*)0x200000007250 = 0x200000006dc0; *(uint8_t*)0x200000006dc0 = 5; *(uint8_t*)0x200000006dc1 = 0xf; *(uint16_t*)0x200000006dc2 = 0x3c; *(uint8_t*)0x200000006dc4 = 6; *(uint8_t*)0x200000006dc5 = 7; *(uint8_t*)0x200000006dc6 = 0x10; *(uint8_t*)0x200000006dc7 = 2; STORE_BY_BITMASK(uint32_t, , 0x200000006dc8, 4, 0, 8); STORE_BY_BITMASK(uint32_t, , 0x200000006dc9, 7, 0, 4); STORE_BY_BITMASK(uint32_t, , 0x200000006dc9, 7, 4, 4); STORE_BY_BITMASK(uint32_t, , 0x200000006dca, 0x56a9, 0, 16); *(uint8_t*)0x200000006dcc = 0xb; *(uint8_t*)0x200000006dcd = 0x10; *(uint8_t*)0x200000006dce = 1; *(uint8_t*)0x200000006dcf = 4; *(uint16_t*)0x200000006dd0 = 0x42; *(uint8_t*)0x200000006dd2 = 2; *(uint8_t*)0x200000006dd3 = 3; *(uint16_t*)0x200000006dd4 = 0x63ac; *(uint8_t*)0x200000006dd6 = 9; *(uint8_t*)0x200000006dd7 = 3; *(uint8_t*)0x200000006dd8 = 0x10; *(uint8_t*)0x200000006dd9 = 0xb; *(uint8_t*)0x200000006dda = 7; *(uint8_t*)0x200000006ddb = 0x10; *(uint8_t*)0x200000006ddc = 2; STORE_BY_BITMASK(uint32_t, , 0x200000006ddd, 0x1a, 0, 8); STORE_BY_BITMASK(uint32_t, , 0x200000006dde, 7, 0, 4); STORE_BY_BITMASK(uint32_t, , 0x200000006dde, 0xb, 4, 4); STORE_BY_BITMASK(uint32_t, , 0x200000006ddf, 0xd5, 0, 16); *(uint8_t*)0x200000006de1 = 0x10; *(uint8_t*)0x200000006de2 = 0x10; *(uint8_t*)0x200000006de3 = 0xa; *(uint8_t*)0x200000006de4 = 0x7f; STORE_BY_BITMASK(uint32_t, , 0x200000006de5, 1, 0, 5); STORE_BY_BITMASK(uint32_t, , 0x200000006de5, 0x12f, 5, 27); *(uint16_t*)0x200000006de9 = 0xf00; *(uint16_t*)0x200000006deb = 1; *(uint32_t*)0x200000006ded = 0x3fc0; *(uint8_t*)0x200000006df1 = 0xb; *(uint8_t*)0x200000006df2 = 0x10; *(uint8_t*)0x200000006df3 = 1; *(uint8_t*)0x200000006df4 = 8; *(uint16_t*)0x200000006df5 = 0x40; *(uint8_t*)0x200000006df7 = 7; *(uint8_t*)0x200000006df8 = 5; *(uint16_t*)0x200000006df9 = 2; *(uint8_t*)0x200000006dfb = 4; *(uint32_t*)0x200000007258 = 8; *(uint32_t*)0x20000000725c = 0x78; *(uint64_t*)0x200000007260 = 0x200000006e00; *(uint8_t*)0x200000006e00 = 0x78; *(uint8_t*)0x200000006e01 = 3; memcpy((void*)0x200000006e02, "\xd7\xb4\xca\xdb\x72\xdc\xe2\x7c\xa7\xfb\x52\x09\xaa\xd1\xb3\x58\x5c\x81\x88\xf0\x61\x26\xd3\xf1\x8e\xdd\x4c\xfa\x47\xad\xdb\xd2\xa6\x71\x5d\xd4\xad\xfa\x69\x7f\x02\xbc\xb0\x89\xed\x20\x13\x26\x88\x85\xf9\xc7\x85\xbd\x7c\x5d\x4e\xe5\x0d\xe3\xce\xcd\x7a\x9d\x0b\x7b\x2e\x70\x82\x26\xe8\xac\xb1\xe9\x08\xb1\xf5\xc0\xc2\xa8\x13\x24\x65\xe4\x51\xfe\x49\xf1\x5e\x60\xc8\xd3\xb9\xc8\x43\x05\xd0\xdd\x8f\x63\x44\x80\x05\x02\x59\xca\xc3\xce\x9c\xfc\x95\x09\x2b\xd7\xe4\x91\x86\x6d", 118); *(uint32_t*)0x200000007268 = 0x13; *(uint64_t*)0x20000000726c = 0x200000006e80; *(uint8_t*)0x200000006e80 = 0x13; *(uint8_t*)0x200000006e81 = 3; memcpy((void*)0x200000006e82, "\x7d\x97\xd9\xeb\x8a\xf2\x94\x3b\x99\x85\xd3\x0c\xaa\xea\xd8\x9b\x5a", 17); *(uint32_t*)0x200000007274 = 4; *(uint64_t*)0x200000007278 = 0x200000006ec0; *(uint8_t*)0x200000006ec0 = 4; *(uint8_t*)0x200000006ec1 = 3; *(uint16_t*)0x200000006ec2 = 0x44a; *(uint32_t*)0x200000007280 = 4; *(uint64_t*)0x200000007284 = 0x200000006f00; *(uint8_t*)0x200000006f00 = 4; *(uint8_t*)0x200000006f01 = 3; *(uint16_t*)0x200000006f02 = 0x1c09; *(uint32_t*)0x20000000728c = 0x93; *(uint64_t*)0x200000007290 = 0x200000006f40; *(uint8_t*)0x200000006f40 = 0x93; *(uint8_t*)0x200000006f41 = 3; memcpy((void*)0x200000006f42, "\xa7\xe5\x52\x92\x38\xf7\x96\xc9\x00\x0c\x75\x3f\x41\xb8\x18\x31\x40\xf3\x91\x4b\x76\xbf\x1c\x42\x8e\xbe\x8d\x39\xc6\xf0\x72\xb4\x81\xec\xad\x74\x62\x74\xe7\xc5\x38\x79\x0d\x8c\x73\x0d\x20\x51\x7a\x22\x44\xa3\x78\x1b\x11\x5c\x07\xd4\x0e\x9e\xc9\xc0\x59\xf1\x2d\x0d\x15\xf4\x6c\xcf\x0c\xde\x26\xef\xa9\xd0\x2a\x11\x9e\x2c\xc5\x62\x7c\x7f\x42\x41\x24\x4d\x08\x43\xef\x00\x18\xb1\x2f\xc3\xcd\x46\x7b\x5f\xdc\xe5\x8a\x69\x75\xd0\x7a\xc3\x52\xa4\x2f\x16\x15\x17\x8d\xcb\x09\x90\xae\xca\x46\x46\x13\x06\x81\x6b\xec\xde\xb8\x96\xba\xc7\x65\xde\xd8\x1e\xbd\x75\xba\x4d\x97\x22\x9b\x15\xa9", 145); *(uint32_t*)0x200000007298 = 0xc2; *(uint64_t*)0x20000000729c = 0x200000007000; *(uint8_t*)0x200000007000 = 0xc2; *(uint8_t*)0x200000007001 = 3; memcpy((void*)0x200000007002, "\xd5\xa3\xd4\x83\x01\x2b\x31\xe4\x9d\xfa\x33\xfd\x95\x93\xb4\xb6\x68\xaa\x6f\x3f\x39\x30\x18\x37\xd9\x51\xda\xf2\x56\x31\x68\x19\xf5\xe7\x1f\xa6\x51\xbb\x06\xb2\xaf\x65\xaf\x27\xc7\xbf\x0f\xda\x1e\xaa\x1e\x32\x23\x1b\x75\xf4\xd0\x6d\x49\x23\xc7\x60\x13\xe9\xd7\x6a\x12\x20\x28\x16\xff\x87\x40\xa9\xfb\x4f\x2e\xce\xb2\x7b\xd2\xe1\xab\x1e\x7b\xd4\xba\x73\x14\xb3\x3d\x15\xe0\xfe\x65\xaa\x2b\x2e\x7f\xfb\x32\x36\xcb\x61\x54\x93\x39\x1f\xea\xb3\xbf\xb8\x28\x18\x2f\xb6\x0c\x4f\xd6\xfe\xf4\x22\xe1\x06\xf3\x84\xbe\x63\x39\x05\xca\x1a\xaf\x83\xd9\xdd\xb2\xa2\x90\x2e\x2a\x11\x7d\xe4\xe5\x96\x14\x58\x09\xb3\xb3\x4b\x1e\xa4\x32\xb4\x12\x39\x1f\xfb\x25\xac\x25\x5e\x7d\xa1\x1d\x99\x4e\x7e\x9e\x98\xe0\x72\x3a\x27\x57\xe5\x80\x95\x9d\xae\x6f\xa7\xac\x2a\xfb\x8d\xc5\x38\x4b\x4a", 192); *(uint32_t*)0x2000000072a4 = 0x5b; *(uint64_t*)0x2000000072a8 = 0x200000007100; *(uint8_t*)0x200000007100 = 0x5b; *(uint8_t*)0x200000007101 = 3; memcpy((void*)0x200000007102, "\xa7\x94\x09\x09\x68\xe4\x6e\x97\xb7\x26\x9f\xca\xe0\xf8\x18\xbf\x9a\x99\xa5\x0d\xe6\x0e\x5c\xda\x68\x47\x21\xbe\x6d\xc3\x48\x20\xf9\x12\xc3\x38\xd7\xdc\x8a\xc5\x0d\x93\xfc\x92\xa2\xeb\xde\x1a\x02\x65\x20\x89\x72\x66\x08\xa9\xe5\x87\x7f\x4c\xac\xf9\x1b\x9e\xec\x5b\x5e\xb2\xfc\x7f\xa7\xbb\x3d\x26\x60\x75\x37\xf0\xe5\x5d\x00\x79\x3e\x7c\xf1\x3b\xbb\x36\x7e", 89); *(uint32_t*)0x2000000072b0 = 0x90; *(uint64_t*)0x2000000072b4 = 0x200000007180; *(uint8_t*)0x200000007180 = 0x90; *(uint8_t*)0x200000007181 = 3; memcpy((void*)0x200000007182, "\xf9\x92\x6b\x0d\xae\x8c\x46\x23\x52\x10\x5e\xd1\xc4\xd3\xff\x50\xcc\x9c\xe9\x82\xc3\x97\xe9\x2e\x57\x61\x01\x31\x71\x90\xc2\x32\x7a\x2b\xa7\x23\x84\x41\x49\xe5\x5f\x4b\x96\x1d\x0f\x0d\xef\xbc\x7e\xdb\x70\xf5\xd6\x11\x69\x07\x42\x65\xac\xd8\x1c\xee\xc5\xa1\x5b\x66\xa5\xe5\x00\x92\x36\xd0\x62\x99\x4a\xf9\xaf\xcb\xe0\x47\x36\xaa\xad\x6b\xb5\x5c\xb3\x0e\x05\x7c\x42\xd0\xdf\x74\x81\x60\x3c\x3c\x95\x9b\x5e\x4e\x20\xf0\x53\x82\xa9\xd9\xad\x4c\x01\x68\x0a\xe3\x59\x7e\xf4\x03\xde\xdf\x0b\x6c\x53\xfd\xc7\x0d\x13\xed\x11\x6e\xf9\xea\x90\x20\x93\xf1\xc9\xf4\xaf\x4c\xec\x25", 142); res = -1; res = syz_usb_connect(/*speed=USB_SPEED_SUPER_PLUS*/6, /*dev_len=*/0x8f, /*dev=*/0x200000006cc0, /*conn_descs=*/0x200000007240); if (res != -1) r[39] = res; break; case 57: *(uint32_t*)0x200000007480 = 0x2c; *(uint64_t*)0x200000007484 = 0x2000000072c0; *(uint8_t*)0x2000000072c0 = 0x40; *(uint8_t*)0x2000000072c1 = 7; *(uint32_t*)0x2000000072c2 = 0x1b; *(uint8_t*)0x2000000072c6 = 0x1b; *(uint8_t*)0x2000000072c7 = 0xa; memcpy((void*)0x2000000072c8, "\x90\x73\x0f\x1d\x9e\x91\xd2\xe1\xdf\x57\x71\x43\xe1\x8c\x68\x0e\xac\xe6\xd6\xc1\x22\x99\x24\x61\x28", 25); *(uint64_t*)0x20000000748c = 0x200000007300; *(uint8_t*)0x200000007300 = 0; *(uint8_t*)0x200000007301 = 3; *(uint32_t*)0x200000007302 = 0x44; *(uint8_t*)0x200000007306 = 0x44; *(uint8_t*)0x200000007307 = 3; memcpy((void*)0x200000007308, "\x87\xd7\x4d\xd4\x60\x96\x80\x9a\x8f\x49\x88\xdd\xaa\x95\xa5\x32\xfb\xc2\x2d\x85\x85\xd1\x59\x28\x57\xad\x0a\xb0\x0c\x17\xa4\xfe\xf3\xb2\x29\xa0\x2f\xe0\xe3\x64\x93\x16\xbe\xd9\xf4\x4f\x58\x8b\x1f\x0b\x47\xbc\x86\x70\x51\x29\x44\x09\x38\xbd\x68\xa2\x9a\x84\xf8\x29", 66); *(uint64_t*)0x200000007494 = 0x200000007380; *(uint8_t*)0x200000007380 = 0; *(uint8_t*)0x200000007381 = 0xf; *(uint32_t*)0x200000007382 = 0x41; *(uint8_t*)0x200000007386 = 5; *(uint8_t*)0x200000007387 = 0xf; *(uint16_t*)0x200000007388 = 0x41; *(uint8_t*)0x20000000738a = 4; *(uint8_t*)0x20000000738b = 0x20; *(uint8_t*)0x20000000738c = 0x10; *(uint8_t*)0x20000000738d = 0xa; *(uint8_t*)0x20000000738e = 0; STORE_BY_BITMASK(uint32_t, , 0x20000000738f, 5, 0, 5); STORE_BY_BITMASK(uint32_t, , 0x20000000738f, 0xe85, 5, 27); *(uint16_t*)0x200000007393 = 0xf00; *(uint16_t*)0x200000007395 = 3; *(uint32_t*)0x200000007397 = 0xff00a0; *(uint32_t*)0x20000000739b = 0xff00f0; *(uint32_t*)0x20000000739f = 0x30; *(uint32_t*)0x2000000073a3 = 0xf; *(uint32_t*)0x2000000073a7 = 0xdfbf; *(uint8_t*)0x2000000073ab = 7; *(uint8_t*)0x2000000073ac = 0x10; *(uint8_t*)0x2000000073ad = 2; STORE_BY_BITMASK(uint32_t, , 0x2000000073ae, 4, 0, 8); STORE_BY_BITMASK(uint32_t, , 0x2000000073af, 4, 0, 4); STORE_BY_BITMASK(uint32_t, , 0x2000000073af, 1, 4, 4); STORE_BY_BITMASK(uint32_t, , 0x2000000073b0, 0xff, 0, 16); *(uint8_t*)0x2000000073b2 = 0xb; *(uint8_t*)0x2000000073b3 = 0x10; *(uint8_t*)0x2000000073b4 = 1; *(uint8_t*)0x2000000073b5 = 2; *(uint16_t*)0x2000000073b6 = 1; *(uint8_t*)0x2000000073b8 = 1; *(uint8_t*)0x2000000073b9 = 3; *(uint16_t*)0x2000000073ba = 9; *(uint8_t*)0x2000000073bc = 8; *(uint8_t*)0x2000000073bd = 0xa; *(uint8_t*)0x2000000073be = 0x10; *(uint8_t*)0x2000000073bf = 3; *(uint8_t*)0x2000000073c0 = 2; *(uint16_t*)0x2000000073c1 = 4; *(uint8_t*)0x2000000073c3 = 3; *(uint8_t*)0x2000000073c4 = 0xb6; *(uint16_t*)0x2000000073c5 = 5; *(uint64_t*)0x20000000749c = 0x200000007400; *(uint8_t*)0x200000007400 = 0x20; *(uint8_t*)0x200000007401 = 0x29; *(uint32_t*)0x200000007402 = 0xf; *(uint8_t*)0x200000007406 = 0xf; *(uint8_t*)0x200000007407 = 0x29; *(uint8_t*)0x200000007408 = 0xf; *(uint16_t*)0x200000007409 = 4; *(uint8_t*)0x20000000740b = 6; *(uint8_t*)0x20000000740c = 0x32; memcpy((void*)0x20000000740d, "\xb2\xc8\x4f\x72", 4); memcpy((void*)0x200000007411, "\xf5\xfb\x7b\x90", 4); *(uint64_t*)0x2000000074a4 = 0x200000007440; *(uint8_t*)0x200000007440 = 0x20; *(uint8_t*)0x200000007441 = 0x2a; *(uint32_t*)0x200000007442 = 0xc; *(uint8_t*)0x200000007446 = 0xc; *(uint8_t*)0x200000007447 = 0x2a; *(uint8_t*)0x200000007448 = 0x3a; *(uint16_t*)0x200000007449 = 0x60; *(uint8_t*)0x20000000744b = 4; *(uint8_t*)0x20000000744c = 4; *(uint8_t*)0x20000000744d = 7; *(uint16_t*)0x20000000744e = 0x8001; *(uint16_t*)0x200000007450 = 8; *(uint32_t*)0x200000007980 = 0x84; *(uint64_t*)0x200000007984 = 0x2000000074c0; *(uint8_t*)0x2000000074c0 = 0; *(uint8_t*)0x2000000074c1 = 0; *(uint32_t*)0x2000000074c2 = 0xcf; memcpy((void*)0x2000000074c6, "\x9f\x51\xc6\xee\x54\xbf\xc1\xfc\x30\xd7\x87\x49\x9a\xb2\x44\x93\xc2\xf3\x0f\x78\xfe\x08\x8e\x72\x4a\xd2\x9b\xad\xb6\xc2\x40\x68\x74\xa9\x09\xd8\x0e\x00\x00\x75\xbb\xe9\x2f\x6f\x4e\x8b\x35\x14\x48\x1d\x12\xb8\x69\xde\xb6\xf4\x7f\x3b\x45\x83\x69\xb7\xf0\x24\xfc\xc0\x23\x19\xe3\x8c\xb7\x46\x7c\x76\xb3\x70\xd3\x78\xee\x02\x56\xda\xa3\xac\xea\x1f\x71\xbe\x5e\x4c\x7d\x8a\x50\x03\x7b\xa8\x4e\x62\x44\x5b\xbd\x99\x0a\x26\xb4\x4f\x60\x19\x8d\x63\x50\x5f\xbf\x00\x5b\x96\x63\x7a\xbf\x5e\xb6\x92\xa2\xed\x0d\x58\x26\x92\xe3\xf2\x59\x38\x7e\xd9\xd1\x95\x59\x17\xdc\x53\xa2\x46\xeb\x20\xe2\x81\xe7\x83\x86\xed\x87\x34\xb8\x10\x75\xe4\x3b\x5b\x3e\x15\xea\x60\xdb\xd4\x97\xe0\x7a\xd8\x84\x79\x92\xdd\x87\x83\x1b\x20\xd0\x52\x63\xc1\x08\xd7\x01\x17\xe5\x21\x70\xef\xac\x17\x77\xd3\xd3\x76\x87\x63\x58\xc2\x29\x71\x72\xb2\xa0\x23\xb5\x2c\x05", 207); *(uint64_t*)0x20000000798c = 0x2000000075c0; *(uint8_t*)0x2000000075c0 = 0; *(uint8_t*)0x2000000075c1 = 0xa; *(uint32_t*)0x2000000075c2 = 1; *(uint8_t*)0x2000000075c6 = 2; *(uint64_t*)0x200000007994 = 0x200000007600; *(uint8_t*)0x200000007600 = 0; *(uint8_t*)0x200000007601 = 8; *(uint32_t*)0x200000007602 = 1; *(uint8_t*)0x200000007606 = 0xfc; *(uint64_t*)0x20000000799c = 0x200000007640; *(uint8_t*)0x200000007640 = 0x20; *(uint8_t*)0x200000007641 = 0; *(uint32_t*)0x200000007642 = 4; *(uint16_t*)0x200000007646 = 3; *(uint16_t*)0x200000007648 = 1; *(uint64_t*)0x2000000079a4 = 0x200000007680; *(uint8_t*)0x200000007680 = 0x20; *(uint8_t*)0x200000007681 = 0; *(uint32_t*)0x200000007682 = 4; *(uint16_t*)0x200000007686 = 0x1d20; *(uint16_t*)0x200000007688 = 0x20; *(uint64_t*)0x2000000079ac = 0x2000000076c0; *(uint8_t*)0x2000000076c0 = 0x40; *(uint8_t*)0x2000000076c1 = 7; *(uint32_t*)0x2000000076c2 = 2; *(uint16_t*)0x2000000076c6 = 0xfff8; *(uint64_t*)0x2000000079b4 = 0x200000007700; *(uint8_t*)0x200000007700 = 0x40; *(uint8_t*)0x200000007701 = 9; *(uint32_t*)0x200000007702 = 1; *(uint8_t*)0x200000007706 = 0xd; *(uint64_t*)0x2000000079bc = 0x200000007740; *(uint8_t*)0x200000007740 = 0x40; *(uint8_t*)0x200000007741 = 0xb; *(uint32_t*)0x200000007742 = 2; memcpy((void*)0x200000007746, "\x22\x89", 2); *(uint64_t*)0x2000000079c4 = 0x200000007780; *(uint8_t*)0x200000007780 = 0x40; *(uint8_t*)0x200000007781 = 0xf; *(uint32_t*)0x200000007782 = 2; *(uint16_t*)0x200000007786 = 2; *(uint64_t*)0x2000000079cc = 0x2000000077c0; *(uint8_t*)0x2000000077c0 = 0x40; *(uint8_t*)0x2000000077c1 = 0x13; *(uint32_t*)0x2000000077c2 = 6; memset((void*)0x2000000077c6, 255, 6); *(uint64_t*)0x2000000079d4 = 0x200000007800; *(uint8_t*)0x200000007800 = 0x40; *(uint8_t*)0x200000007801 = 0x17; *(uint32_t*)0x200000007802 = 6; memcpy((void*)0x200000007806, "\xee\xfa\x7a\x62\x01\x65", 6); *(uint64_t*)0x2000000079dc = 0x200000007840; *(uint8_t*)0x200000007840 = 0x40; *(uint8_t*)0x200000007841 = 0x19; *(uint32_t*)0x200000007842 = 2; memcpy((void*)0x200000007846, "\x01\xd3", 2); *(uint64_t*)0x2000000079e4 = 0x200000007880; *(uint8_t*)0x200000007880 = 0x40; *(uint8_t*)0x200000007881 = 0x1a; *(uint32_t*)0x200000007882 = 2; *(uint16_t*)0x200000007886 = 5; *(uint64_t*)0x2000000079ec = 0x2000000078c0; *(uint8_t*)0x2000000078c0 = 0x40; *(uint8_t*)0x2000000078c1 = 0x1c; *(uint32_t*)0x2000000078c2 = 1; *(uint8_t*)0x2000000078c6 = -1; *(uint64_t*)0x2000000079f4 = 0x200000007900; *(uint8_t*)0x200000007900 = 0x40; *(uint8_t*)0x200000007901 = 0x1e; *(uint32_t*)0x200000007902 = 1; *(uint8_t*)0x200000007906 = 0xf7; *(uint64_t*)0x2000000079fc = 0x200000007940; *(uint8_t*)0x200000007940 = 0x40; *(uint8_t*)0x200000007941 = 0x21; *(uint32_t*)0x200000007942 = 1; *(uint8_t*)0x200000007946 = 0xb; syz_usb_control_io(/*fd=*/r[39], /*descs=*/0x200000007480, /*resps=*/0x200000007980); break; case 58: syz_usb_disconnect(/*fd=*/r[38]); break; case 59: *(uint8_t*)0x200000007a40 = 0x12; *(uint8_t*)0x200000007a41 = 1; *(uint16_t*)0x200000007a42 = 0x110; *(uint8_t*)0x200000007a44 = 0; *(uint8_t*)0x200000007a45 = 0; *(uint8_t*)0x200000007a46 = 0; *(uint8_t*)0x200000007a47 = -1; *(uint16_t*)0x200000007a48 = 0x46d; *(uint16_t*)0x200000007a4a = 0xc08d; *(uint16_t*)0x200000007a4c = 0x40; *(uint8_t*)0x200000007a4e = 1; *(uint8_t*)0x200000007a4f = 2; *(uint8_t*)0x200000007a50 = 3; *(uint8_t*)0x200000007a51 = 1; *(uint8_t*)0x200000007a52 = 9; *(uint8_t*)0x200000007a53 = 2; *(uint16_t*)0x200000007a54 = 0x2d; *(uint8_t*)0x200000007a56 = 1; *(uint8_t*)0x200000007a57 = 1; *(uint8_t*)0x200000007a58 = 4; *(uint8_t*)0x200000007a59 = 0x50; *(uint8_t*)0x200000007a5a = 0x10; *(uint8_t*)0x200000007a5b = 9; *(uint8_t*)0x200000007a5c = 4; *(uint8_t*)0x200000007a5d = 0; *(uint8_t*)0x200000007a5e = 0xf9; *(uint8_t*)0x200000007a5f = 2; *(uint8_t*)0x200000007a60 = 3; *(uint8_t*)0x200000007a61 = 1; *(uint8_t*)0x200000007a62 = 2; *(uint8_t*)0x200000007a63 = 5; *(uint8_t*)0x200000007a64 = 9; *(uint8_t*)0x200000007a65 = 0x21; *(uint16_t*)0x200000007a66 = 0x81; *(uint8_t*)0x200000007a68 = 8; *(uint8_t*)0x200000007a69 = 1; *(uint8_t*)0x200000007a6a = 0x22; *(uint16_t*)0x200000007a6b = 0x6e7; *(uint8_t*)0x200000007a6d = 9; *(uint8_t*)0x200000007a6e = 5; *(uint8_t*)0x200000007a6f = 0x81; *(uint8_t*)0x200000007a70 = 3; *(uint16_t*)0x200000007a71 = 0x10; *(uint8_t*)0x200000007a73 = 8; *(uint8_t*)0x200000007a74 = 0xc; *(uint8_t*)0x200000007a75 = 0x6e; *(uint8_t*)0x200000007a76 = 9; *(uint8_t*)0x200000007a77 = 5; *(uint8_t*)0x200000007a78 = 2; *(uint8_t*)0x200000007a79 = 3; *(uint16_t*)0x200000007a7a = 0x200; *(uint8_t*)0x200000007a7c = 8; *(uint8_t*)0x200000007a7d = 1; *(uint8_t*)0x200000007a7e = 0x50; *(uint32_t*)0x200000007f40 = 0xa; *(uint64_t*)0x200000007f44 = 0x200000007a80; *(uint8_t*)0x200000007a80 = 0xa; *(uint8_t*)0x200000007a81 = 6; *(uint16_t*)0x200000007a82 = 0x310; *(uint8_t*)0x200000007a84 = 0x48; *(uint8_t*)0x200000007a85 = 0xa5; *(uint8_t*)0x200000007a86 = 0xca; *(uint8_t*)0x200000007a87 = 8; *(uint8_t*)0x200000007a88 = 0x10; *(uint8_t*)0x200000007a89 = 0; *(uint32_t*)0x200000007f4c = 0x30; *(uint64_t*)0x200000007f50 = 0x200000007ac0; *(uint8_t*)0x200000007ac0 = 5; *(uint8_t*)0x200000007ac1 = 0xf; *(uint16_t*)0x200000007ac2 = 0x30; *(uint8_t*)0x200000007ac4 = 4; *(uint8_t*)0x200000007ac5 = 0xa; *(uint8_t*)0x200000007ac6 = 0x10; *(uint8_t*)0x200000007ac7 = 3; *(uint8_t*)0x200000007ac8 = 0; *(uint16_t*)0x200000007ac9 = 5; *(uint8_t*)0x200000007acb = 0; *(uint8_t*)0x200000007acc = 1; *(uint16_t*)0x200000007acd = 0x8a; *(uint8_t*)0x200000007acf = 0x10; *(uint8_t*)0x200000007ad0 = 0x10; *(uint8_t*)0x200000007ad1 = 0xa; *(uint8_t*)0x200000007ad2 = 0xa; STORE_BY_BITMASK(uint32_t, , 0x200000007ad3, 1, 0, 5); STORE_BY_BITMASK(uint32_t, , 0x200000007ad3, 0, 5, 27); *(uint16_t*)0x200000007ad7 = 0xf00f; *(uint16_t*)0x200000007ad9 = 7; *(uint32_t*)0x200000007adb = 0x3f00; *(uint8_t*)0x200000007adf = 0xa; *(uint8_t*)0x200000007ae0 = 0x10; *(uint8_t*)0x200000007ae1 = 3; *(uint8_t*)0x200000007ae2 = 0; *(uint16_t*)0x200000007ae3 = 4; *(uint8_t*)0x200000007ae5 = 4; *(uint8_t*)0x200000007ae6 = 8; *(uint16_t*)0x200000007ae7 = 0xfff8; *(uint8_t*)0x200000007ae9 = 7; *(uint8_t*)0x200000007aea = 0x10; *(uint8_t*)0x200000007aeb = 2; STORE_BY_BITMASK(uint32_t, , 0x200000007aec, 4, 0, 8); STORE_BY_BITMASK(uint32_t, , 0x200000007aed, 0, 0, 4); STORE_BY_BITMASK(uint32_t, , 0x200000007aed, 5, 4, 4); STORE_BY_BITMASK(uint32_t, , 0x200000007aee, 0x8001, 0, 16); *(uint32_t*)0x200000007f58 = 0xa; *(uint32_t*)0x200000007f5c = 4; *(uint64_t*)0x200000007f60 = 0x200000007b00; *(uint8_t*)0x200000007b00 = 4; *(uint8_t*)0x200000007b01 = 3; *(uint16_t*)0x200000007b02 = 0x437; *(uint32_t*)0x200000007f68 = 0xf2; *(uint64_t*)0x200000007f6c = 0x200000007b40; *(uint8_t*)0x200000007b40 = 0xf2; *(uint8_t*)0x200000007b41 = 3; memcpy((void*)0x200000007b42, "\xf0\x01\x99\x69\xb3\x8f\x6a\xfa\xbd\x6c\x10\x59\x67\xf2\xb7\x9c\x11\x6b\xf5\x2e\x6a\xf5\x49\x27\x19\x39\xcb\xea\xcd\xab\x5c\x85\x03\xce\xe7\xd1\xa6\x7a\x62\xea\x49\x1b\x6b\x2f\x86\x47\x13\x3f\x15\xb8\xe9\x70\x7e\x4a\x77\x57\x7e\x8a\xfd\x8a\x12\x84\x45\x9b\x66\xc7\xbe\x93\xc4\x3e\x84\xef\xcf\xc2\xf7\x3e\x93\xd2\x95\x99\x8c\xc2\xf4\x95\xae\x5b\x1a\x3d\x5e\x12\xef\x6e\x64\x66\x4a\x3b\x5c\x79\x52\x8b\x01\x19\xf7\x8b\x0a\x61\xd8\x07\x23\x25\x37\xeb\x3d\x9c\x09\xad\xd9\x38\x23\xe6\xf8\x78\xbb\xba\x00\x89\x8b\xe1\x01\x7f\xaf\x4e\x5f\x14\xd3\x87\x40\x1c\x45\x64\x59\x54\xc0\x4f\x8c\x83\xf9\xe5\xf0\xae\x99\x13\xd9\xcc\xb8\x8e\x75\x16\xd8\x0f\x8e\x21\xc3\xb6\x10\x42\x92\x58\x16\x92\x48\xa0\x16\xde\x14\x4a\xbc\xe7\x90\x5f\x4d\xd3\xbf\x26\x98\xe9\xf3\xa5\xfe\xbc\x7c\x10\xef\x4e\xd2\x98\xe5\xf8\xfa\xcb\xb3\xc9\x34\x4b\xb3\xab\x33\x56\x8a\x0f\x64\xf4\x28\xd6\x0d\xab\xe2\xbf\xe7\x95\xdf\x06\x03\xcd\xf7\x6f\x60\x62\x41\xfd\xd8\x9c\x8f\xf9\xfe\x55\xee\x23\x95\xfd", 240); *(uint32_t*)0x200000007f74 = 4; *(uint64_t*)0x200000007f78 = 0x200000007c40; *(uint8_t*)0x200000007c40 = 4; *(uint8_t*)0x200000007c41 = 3; *(uint16_t*)0x200000007c42 = 0x2c0a; *(uint32_t*)0x200000007f80 = 0x89; *(uint64_t*)0x200000007f84 = 0x200000007c80; *(uint8_t*)0x200000007c80 = 0x89; *(uint8_t*)0x200000007c81 = 3; memcpy((void*)0x200000007c82, "\x05\xb7\x61\x5d\x7a\x2b\xa8\x3f\x59\x16\xd5\x85\xe5\x29\x06\x69\xa0\xc2\x43\xe1\xc6\x5f\x43\xd6\xc7\x68\x07\x67\xf0\xda\x68\x05\xce\x35\x66\x41\x3a\x20\xf4\xb8\x66\x4b\x77\x79\x9c\x5c\x60\x61\xd9\xd1\x90\x75\xd2\xf8\x9b\x88\x0c\xaa\x62\x2d\x3a\xa9\x10\x8e\x52\x22\xe5\x53\x36\xbf\x78\x50\xd2\xf7\x99\x0a\x13\x14\xb0\xbe\x81\xd6\x06\xf8\xa9\x9a\x67\x05\xe0\xac\x44\x87\x20\x72\x36\x6a\xba\xea\x5f\x97\xd7\xca\x08\xed\x1e\xb2\x5b\x70\x7c\x92\x99\x1e\x55\x37\xf9\x45\xaa\x40\x1d\x76\x13\x49\xb6\x28\xd6\xc9\x28\xc1\xcf\xe5\xb0\x9f\xd1\x32\x72", 135); *(uint32_t*)0x200000007f8c = 0xb8; *(uint64_t*)0x200000007f90 = 0x200000007d40; *(uint8_t*)0x200000007d40 = 0xb8; *(uint8_t*)0x200000007d41 = 3; memcpy((void*)0x200000007d42, "\xf0\x4a\x78\x64\x8b\xb1\x3a\xd6\xc5\x3b\x44\xe4\x2e\xd2\xf2\x4d\x32\x05\xbf\x51\x61\x67\x4f\xf3\x75\xec\xfa\x9f\x71\x0d\xd4\xd5\x2e\x29\x77\x9b\xc4\xc1\xd4\x1f\xaf\x1b\x2e\x02\xfa\x2c\xb4\xca\x6c\x44\x96\x81\xb5\xc8\x8b\x37\x75\xf8\x2b\xab\xde\x22\x58\xf8\xa0\x01\xd8\x11\xf8\xb6\x4c\xe0\x75\x3b\x22\x8c\x16\x18\x09\x77\x0f\x39\x16\x0b\xa4\xea\x92\x49\x0a\x38\xf8\x2c\x3f\x18\xb4\x4c\x81\xa1\x48\xc4\x8b\xbc\x4f\x71\x6e\x64\xa8\x5a\x98\x5f\x35\x70\xd6\x13\x2a\x4a\xc6\xe9\x7f\x0a\xe7\x29\x65\x82\x87\x9c\x5d\x4e\x27\x7b\xe3\xd5\x86\x7d\xc3\xdf\x26\x06\x87\x9b\xd5\x28\x12\x25\xa3\x4f\x3f\xeb\xa4\x36\xee\xc1\x6d\xdf\xbe\x61\x15\x74\xbe\x64\x5a\x71\xc5\xe8\xbe\x49\x4e\x27\x91\x83\x33\xf2\x43\x1a\xef\xf2\xe9\xfe\xd0\x60\x84\x28", 182); *(uint32_t*)0x200000007f98 = 4; *(uint64_t*)0x200000007f9c = 0x200000007e00; *(uint8_t*)0x200000007e00 = 4; *(uint8_t*)0x200000007e01 = 3; *(uint16_t*)0x200000007e02 = 0x40f; *(uint32_t*)0x200000007fa4 = 4; *(uint64_t*)0x200000007fa8 = 0x200000007e40; *(uint8_t*)0x200000007e40 = 4; *(uint8_t*)0x200000007e41 = 3; *(uint16_t*)0x200000007e42 = 0x860; *(uint32_t*)0x200000007fb0 = 4; *(uint64_t*)0x200000007fb4 = 0x200000007e80; *(uint8_t*)0x200000007e80 = 4; *(uint8_t*)0x200000007e81 = 3; *(uint16_t*)0x200000007e82 = 0xf4ef; *(uint32_t*)0x200000007fbc = 4; *(uint64_t*)0x200000007fc0 = 0x200000007ec0; *(uint8_t*)0x200000007ec0 = 4; *(uint8_t*)0x200000007ec1 = 3; *(uint16_t*)0x200000007ec2 = 0x3001; *(uint32_t*)0x200000007fc8 = 4; *(uint64_t*)0x200000007fcc = 0x200000007f00; *(uint8_t*)0x200000007f00 = 4; *(uint8_t*)0x200000007f01 = 3; *(uint16_t*)0x200000007f02 = 0x2009; res = -1; res = syz_usb_connect(/*speed=*/0, /*dev_len=*/0x3f, /*dev=*/0x200000007a40, /*conn_descs=*/0x200000007f40); if (res != -1) r[40] = res; break; case 60: syz_usb_ep_read(/*fd=*/r[40], /*ep=*/0, /*len=*/0x1000, /*data=*/0x200000008000); break; case 61: memcpy((void*)0x200000009000, "\x57\xbb\xa2\xf0\x4f\x39\x45\xda\x7a\x47\x03\x77\x10\xf6\xd5\x3d\x8d\xfa\xd8\xa9\x6c\x57\xe1\x1c\xf5\xfc\xfe\xe4\x34\xfc\xe8\x80\x38\xe1\x90\x4e\xcc\x27\x12\x33\x41\x18\xe5\x00\x2b\x0c\x10\x7c\x28\x6e\xb9\x03\x14\x23\x3f\xd5\xce\x1d\x9e\xa5\xda\x00\x76\x74\x11\x02\xd8\x85\x17\x46\x3f\xf1\x18\xbd\x93\x12\x82\x41\x2d\xe1\xf5\xea\x71\xeb\x2b\xec\x91\xb8\x2b\x7f\x7b\x64\xf8\xaa\xe1\xd5\x8e\x32\xde\x1d\xee\xb1\xc8\x26\x4d\x59\xd6\x39\xa1\x94\x5f\x00\x90\x27\x5e\x6b\xdb\xf1\x8e\x86\x68\x5c\xcb\x60\xa5\xfe\xc9\xc7\xce\xba\xc5\xd0\x5b\x5c\x84\xe6\x11\x6f\x89\xd4\x43\xfa\xd3\xce\x74\xd8\x20\x80", 148); syz_usb_ep_write(/*fd=*/r[37], /*ep=*/6, /*len=*/0x94, /*data=*/0x200000009000); break; case 62: syz_usbip_server_init(/*speed=USB_SPEED_SUPER*/5); break; } } int main(void) { syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000ul, /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/7ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x200001000000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); setup_sysctl(); const char* reason; (void)reason; if ((reason = setup_fault())) printf("the reproducer may not work as expected: fault injection setup failed: %s\n", reason); use_temporary_dir(); do_sandbox_none(); return 0; } : In function 'execute_call': :6450:17: error: '__NR_socketcall' undeclared (first use in this function) :6450:17: note: each undeclared identifier is reported only once for each function it appears in At top level: cc1: note: unrecognized command-line option '-Wno-unused-command-line-argument' may have been intended to silence earlier diagnostics compiler invocation: x86_64-linux-gnu-gcc [-o /tmp/syz-executor2914173472 -DGOOS_linux=1 -DGOARCH_amd64=1 -DHOSTGOOS_linux=1 -x c - -m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -static-pie] --- FAIL: TestGenerate/linux/amd64/0 (1.00s) csource_test.go:157: opts: {Threaded:false Repeat:true RepeatTimes:0 Procs:0 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}} program: r0 = openat$ubi_ctrl(0xffffffffffffff9c, &(0x7f0000000000), 0x44502, 0x0) (fail_nth: 1) ioctl$USBDEVFS_BULK(r0, 0xc0185502, &(0x7f0000000140)={{{0xa, 0x1}}, 0xc5, 0x1, &(0x7f0000000040)="e1ee87a8f76c257b75c1073c7058be82fe3362bbcca54df520d1ca8fa91b50810f876d1fab0a1cc214c35f4e266e71643d8c95988087e46a87c1a715effe06169ab65fa18e5414404f30c0005561397ed1d9557c66a994b954efa714985a2ae409df8111fa8a361408734d15b30cd9ab3fa50e088b3d2bafdc689ea3cb7e52a9fc7f5d48d245d4097bb933725bd9e29371cd7780b4ec8d6e2dbf861aad04d6594f5ebd2ffab1e8a68c5157cae2f46f6fa3aeac0e3f8b7b97630f346bc3276e53ca72b417f8"}) (async) ioctl$F2FS_IOC_SET_COMPRESS_OPTION(r0, 0x4002f516, &(0x7f0000000180)={0x4, 0x9}) (rerun: 4) setsockopt$inet6_tcp_TCP_REPAIR(r0, 0x6, 0x13, &(0x7f00000001c0)=0xffffffffffffffff, 0x4) setsockopt$inet6_group_source_req(r0, 0x29, 0x2b, &(0x7f0000000200)={0x4, {{0xa, 0x4e20, 0x4, @private0={0xfc, 0x0, '\x00', 0x1}}}, {{0xa, 0x4e21, 0x1, @local, 0x9}}}, 0x108) ioctl$USBDEVFS_GETDRIVER(r0, 0x41045508, &(0x7f0000000340)={0x4b, "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"}) setsockopt$XDP_UMEM_REG(r0, 0x11b, 0x4, &(0x7f0000000580)={&(0x7f0000000480)=""/222, 0x8000, 0x1800, 0x1, 0x3}, 0x20) ioctl$BLKSECDISCARD(r0, 0x127d, &(0x7f00000005c0)=0x4) ioctl$DRM_IOCTL_SYNCOBJ_FD_TO_HANDLE_FD(r0, 0xc01864c2, &(0x7f0000000600)={0x0, 0x0, r0}) ioctl$DRM_IOCTL_MODE_REVOKE_LEASE(0xffffffffffffffff, 0xc00464c9, &(0x7f00000006c0)) syz_80211_inject_frame(&(0x7f0000000000)=@broadcast, &(0x7f0000000040)=@data_frame={@a_msdu=@type01={{0x0, 0x2, 0xb, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1}, {0x2}, @device_b, @from_mac, @initial, {0x9, 0x5bb}, "", @value={0x1, 0x1, 0x1, 0x1, 0x9}, @value=@ver_80211n={0x0, 0x2, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x1}}, @random="055ba71928a79f8625942b8e22a62e7d0ef5d26afb5923f0a1"}, 0x37) syz_80211_join_ibss(&(0x7f0000000080)='wlan0\x00', &(0x7f00000000c0)=@random="f20f01439229172ec7637d66e2f075", 0xf, 0x2) syz_btf_id_by_name$bpf_lsm(&(0x7f0000000100)='bpf_lsm_inode_getsecurity\x00') r1 = syz_clone(0x1000, &(0x7f0000000140)="ff427f0e4659ab5893d3badb31b3b1b89da52b0f3d3489a18a5837ba6e04f21cf0581de7946c2e29adef18036a10ce361250a5667064b4d456c64c307d63cfe3422c3fafd450315e8366", 0x4a, &(0x7f00000001c0), &(0x7f0000000200), &(0x7f0000000240)="b201d139a4344e463d89913bee9c68af3f34090b9f6244af88c8fe07ce4ffe9b81210da0fc44559d985ad5bb1dc9672ce4d1df554aafb78053f4") r2 = syz_clone3(&(0x7f0000000440)={0x100400, &(0x7f0000000280)=0xffffffffffffffff, &(0x7f00000002c0)=0x0, &(0x7f0000000300)=0x0, {0x2a}, &(0x7f0000000340)=""/21, 0x15, &(0x7f0000000380)=""/120, &(0x7f0000000400)=[r1], 0x1}, 0x58) syz_create_resource$binfmt(&(0x7f00000004c0)='./file0\x00') syz_emit_ethernet(0xd1, &(0x7f0000000500)={@random="44f71c1405a2", @multicast, @val={@void, {0x8100, 0x1, 0x0, 0x2}}, {@mpls_mc={0x8848, {[{0xf, 0x0, 0x1}, {0xc, 0x0, 0x1}, {0x2, 0x0, 0x1}, {0x1c}], @llc={@snap={0x0, 0x0, "67a3", "c85dcd", 0x88ca, "e303e8e52af9a170943b5f0b2861a3effb852560b1007d1865564aed84dfbf75279a5a950a513b7559f042b12f0d592b5a8bb399b9a071f4d2b9fb4903fb61b866bd20c43a437cc6915d6e19f058e23b4cfbf7d66b0d974aa6f1687cc06941e28e8515a079742b9f8383f09b8e29493cdfef26beab29802d1e85d1a50ef5670a049551dab256fd3dc3fd667fd4a29c752e4f3ba700720a9fe2ecb47e232cfbb80832213bbaf3"}}}}}}, &(0x7f0000000600)={0x1, 0x4, [0x58f, 0x8001, 0x2bc, 0xf]}) syz_emit_vhci(&(0x7f0000000640)=@HCI_ACLDATA_PKT={0x2, {0xc9, 0x1, 0x0, 0xa2}, @l2cap_cid_signaling={{0x9e}, [@l2cap_info_req={{0xa, 0x4, 0x2}, {0x5}}, @l2cap_move_chan_rsp={{0xf, 0x7, 0x4}, {0x1, 0x1ff}}, @l2cap_info_rsp={{0xb, 0x8, 0x64}, {0x1, 0x9, "7d0c09e4aa3ea5a78a46cf8d66857ba4107e5cf880621c4c433cdb0a8bd03a4f9c8f390145f9db0c1dd85656d6b3dc38afb84d7e118e1cbdd6926b1876be6a6553bafa1bfef971281350403e18e82e89f42bb6d51b166bd96dabf25dbb28f01e"}}, @l2cap_disconn_req={{0x6, 0x64, 0x4}, {0x9, 0x1}}, @l2cap_move_chan_cfm={{0x10, 0x2, 0x4}, {0xffff, 0x9}}, @l2cap_create_chan_rsp={{0xd, 0x4f, 0x8}, {0x6, 0x8001, 0x8, 0x3}}, @l2cap_conn_rsp={{0x3, 0x48, 0x8}, {0x4, 0x8, 0x6837, 0x4}}]}}, 0xa7) syz_extract_tcp_res(&(0x7f0000000700), 0x0, 0x507) r6 = openat$cuse(0xffffffffffffff9c, &(0x7f0000000740), 0x2, 0x0) ioctl$DRM_IOCTL_GET_CLIENT(0xffffffffffffffff, 0xc0286405, &(0x7f0000002a80)={0x7, 0x4, {r5}, {0x0}, 0x100000000, 0x3}) shmctl$auto_IPC_STAT(0x8, 0x2, &(0x7f0000002b80)={{0x1, 0x0, 0xee00, 0x5, 0x9, 0x8c, 0x6}, 0xe0000, 0x3, 0x6, 0x2c54, @raw=0x7fffffff, @raw=0x5, 0x3, 0x0, &(0x7f0000002ac0)="34d14592330d2effe2b242ce1c79f97a737dc0f7745d84eec469048ba4772d3ca2f34e3a83b5edadf6550e5b412cf5ee749b3324b30032ad2ae14cfa29ef4ecf97416fdc53d73bb80ea139aac1bf364ddcbe7409342155ae126f63d9e3ab1d5104befdd9", &(0x7f0000002b40)="e550413c2f469c9ef08eb7193b0a242e58befe012aa89d7c"}) r9 = setfsuid$auto(0xee01) r10 = getuid() fstat(r3, &(0x7f0000002ec0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) ioctl$DRM_IOCTL_GET_CLIENT(0xffffffffffffffff, 0xc0286405, &(0x7f0000002f40)={0x9, 0x6, {0xffffffffffffffff}, {0xee01}, 0x9, 0x8}) ioctl$auto_XFS_IOC_SWAPEXT(0xffffffffffffffff, 0xc0c0586d, &(0x7f0000002f80)={0x1, @inferred=r3, @inferred=r3, 0x0, 0x0, '\x00', {0x100, 0x6, 0x4, 0x0, 0xee01, 0x4, 0x2, 0xe78bc90, {0x9e350, 0x10}, {0x4, 0x7}, {0x3a83, 0x80000000}, 0xff, 0x8, 0x7, 0x7, 0x5, 0xd275, 0x6, 0x1, 0xff74, 0x5, '\x00', 0xf0e, 0x400, 0x2, 0x8001}}) msgctl$auto_IPC_RMID(0x2, 0x0, &(0x7f00000030c0)={{0x80, 0x0, 0xee01, 0x8, 0x3, 0x3, 0x6}, &(0x7f0000003040)=0xf, &(0x7f0000003080)=0x29, 0xfffffffffffff801, 0x6b4c, 0x0, 0x3, 0x800, 0x2, 0xbf09, 0x3, @inferred=r2, @inferred=r4}) ioctl$auto_KVM_GET_DEVICE_ATTR(0xffffffffffffffff, 0x4018aee2, &(0x7f0000003140)={0xb407, 0xee01, 0x8, 0x8}) statx$auto(0xffffffffffffff9c, &(0x7f0000003180)='./file0\x00', 0x4, 0x2, &(0x7f00000031c0)={0x8, 0xfffffffe, 0x0, 0xa, 0x0, 0xee00, 0xf, 0x5d3e, 0x5, 0x10, 0xff89, 0x100, {0xf, 0x8}, {0xfff, 0x2}, {0x3, 0x7fff}, {0xffffffffffffffff, 0x9}, 0x0, 0x3, 0x7, 0x8d6, 0x383d, 0x4, 0xb0d4, 0x503, 0x2, 0x0, 0x5, 0x2, [0xfffffffffffffffb, 0xff, 0x3, 0x259, 0xbe9, 0xff, 0x6, 0x800, 0x9]}) shmctl$auto_IPC_SET(0x3, 0x1, &(0x7f0000004300)={{0x5, 0xee00, 0xee00, 0x3, 0x7ff, 0x2, 0x5}, 0x2, 0x401, 0x3, 0xfffffffffffffffe, @inferred=r1, @inferred=r4, 0xfffe, 0x0, &(0x7f00000032c0)="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", &(0x7f00000042c0)="14dc2c36c1a4730f33f0a47756b437792e9ac78f742f821e328341e02b"}) newfstatat(0xffffffffffffff9c, &(0x7f0000004600)='./file0\x00', &(0x7f0000004640)={0x0, 0x0, 0x0, 0x0, 0x0}, 0x0) fstat(r3, &(0x7f00000046c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) shmctl$auto(0x0, 0x7, &(0x7f00000058c0)={{0xffffffff, 0xee00, 0xffffffffffffffff, 0x2, 0x9, 0x2, 0x4}, 0x6, 0x4, 0x4, 0x1, @raw, @inferred=r4, 0x40, 0x0, &(0x7f0000004840)="be999eee258959e93a2aa68dc2cb1d93b819d2b9d9e678e2e2506d54510e920728d75815bb8027e6a021febb8f0996f8add6877b74ce5eace74504cf3a4f3ac46a5a59400342351940bfb8767dd9955c9e9a9941", &(0x7f00000048c0)="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lstat$auto(&(0x7f0000005940)='./file0\x00', &(0x7f0000005980)={0x100000000, 0x7d80, 0x1, 0x40, 0xffffffffffffffff, 0x0, 0x0, 0x7, 0xfffffffffffffffb, 0x0, 0x2, 0xe6, 0x2, 0x4, 0xa03f, 0x10, 0x7}) syz_fuse_handle_req(r6, 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", 0x2000, &(0x7f0000005b80)={&(0x7f0000002780)={0x50, 0xffffffffffffffda, 0x7, {0x7, 0x2d, 0x8, 0x1020000, 0xfffc, 0x401, 0x12, 0x6, 0x0, 0x0, 0x40, 0xce}}, &(0x7f0000002800)={0x18, 0x0, 0x6, {0xbb}}, &(0x7f0000002840)={0x18, 0x0, 0x1, {0x5}}, &(0x7f0000002880)={0x18, 0xfffffffffffffff5, 0x4}, &(0x7f00000028c0)={0x18, 0xfffffffffffffffe, 0x3, {0x7}}, &(0x7f0000002900)={0x28, 0x0, 0x300000000000, {{0x1, 0x8, 0x0, r1}}}, &(0x7f0000002940)={0x60, 0x0, 0xc, {{0x0, 0xff, 0x2, 0x41, 0x40, 0x6, 0x8dd, 0x5}}}, &(0x7f00000029c0)={0x18, 0xffffffffffffffda, 0x9, {0x5}}, &(0x7f0000002a00)={0x16, 0x0, 0x6, {'\xff\xff\xff\xff\xff\xff'}}, &(0x7f0000002a40)={0x20, 0x0, 0x0, {0x0, 0x1e}}, &(0x7f0000002c00)={0x78, 0xfffffffffffffffe, 0x3, {0x8, 0x6, 0x0, {0x0, 0x8, 0x2, 0x8, 0x80, 0x5, 0x3482, 0xa246, 0x80000000, 0x4000, 0x3e08, r7, r8, 0x7f, 0x3}}}, &(0x7f0000002c80)={0x90, 0xffffffffffffffda, 0x2, {0x6, 0x0, 0x2, 0x8, 0xfffffffc, 0x9, {0x1, 0x3, 0x2, 0x5, 0x761, 0x7, 0x58d95c3d, 0x7, 0x7, 0x8000, 0x8, r9, 0xee01, 0x0, 0x400}}}, &(0x7f0000002d40)={0x158, 0x0, 0x8000000000000001, [{0x0, 0x0, 0x0, 0x5}, {0x2, 0x291, 0x3, 0x0, 'a-$'}, {0x6, 0x1, 0x1a, 0x5df9, 'bpf_lsm_inode_getsecurity\x00'}, {0x5, 0x4}, {0x3, 0x2, 0x7, 0x615d, ']F,[@%('}, {0x3, 0x4, 0x2, 0x5, '#*'}, {0x6, 0xc, 0x1, 0x200, '!'}, {0x2, 0x1, 0x3, 0xffff, '%[*'}, {0x2, 0x1, 0x6, 0x10001, '\xbb\xbb\xbb\xbb\xbb\xbb'}, {0x2, 0x9, 0x3, 0x3, '\\$&'}]}, &(0x7f0000004380)={0x280, 0x0, 0x7, [{{0x1, 0x2, 0x9b, 0xa, 0x40, 0x2b, {0x1, 0x0, 0xf5, 0x7, 0x8, 0x7, 0x5, 0x9, 0x1b, 0xa000, 0x4, r10, r12, 0x4, 0x10000}}, {0x4, 0x6, 0x0, 0x7f}}, {{0x1, 0x0, 0x9, 0x4, 0x9, 0x101, {0x0, 0x80, 0x80000001, 0x8, 0x7fffffffffffffff, 0xc14, 0x7, 0x2, 0x5, 0x1000, 0x7, r13, r16, 0x7, 0x3}}, {0x1, 0x8000000000000000, 0x0, 0x9}}, {{0x3, 0x1, 0x7, 0x3, 0x10000, 0xfff, {0x6, 0x3, 0x4, 0xffffffff, 0x5, 0x1, 0xcf, 0x5, 0x2, 0x3000, 0xf, r17, r18, 0xdda, 0x800}}, {0x0, 0x480, 0x1, 0x7, '\''}}, {{0x3, 0x0, 0x6, 0x6, 0xae90, 0x7fff, {0x5, 0x2, 0xffff, 0xb6, 0x9, 0x8, 0x200, 0x3, 0x6, 0x6000, 0xfffffff7, r19, r20, 0x4, 0x6}}, {0x0, 0x3, 0x6, 0xfffffffd, 'wlan0\x00'}}]}, &(0x7f0000004740)={0xa0, 0xfffffffffffffffe, 0x7fff, {{0x1, 0x2, 0x8, 0x8001, 0x9000, 0x0, {0x3, 0x4, 0x4283, 0x6, 0x7, 0x1, 0x4, 0x8000, 0x7f, 0x2000, 0xa, r22, r24, 0x2, 0x9}}}}, &(0x7f0000004800)={0x20, 0x0, 0xa, {0x8}}, &(0x7f0000005a40)={0x130, 0x0, 0x800, {0x10000000, 0x9, 0x0, '\x00', {0x4, 0xfffffff9, 0x8, 0xd, r25, r27, 0x4000, '\x00', 0xe, 0x1, 0x9, 0x4, {0x75, 0x10}, {0x0, 0x2a}, {0x4, 0x647}, {0x8, 0xfffffffa}, 0x4, 0x9, 0xf1, 0x7}}}}) r28 = socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$SEG6(&(0x7f0000005c40), r28) syz_init_net_socket$802154_dgram(0x24, 0x2, 0x0) r29 = syz_io_uring_complete(0x0) syz_io_uring_setup(0x19f7, &(0x7f0000005c80)={0x0, 0x9c5d, 0x2, 0x1, 0x253, 0x0, r15}, &(0x7f0000005d00)=0x0, &(0x7f0000005d40)=0x0) syz_io_uring_submit(r30, r31, &(0x7f0000005dc0)=@IORING_OP_TIMEOUT={0xb, 0x28, 0x0, 0x0, 0x3, &(0x7f0000005d80), 0x1, 0x10, 0x1}) r32 = syz_kvm_setup_syzos_vm$x86(r15, &(0x7f0000bff000/0x400000)=nil) syz_kvm_add_vcpu$x86(r32, &(0x7f0000005e80)={0x0, &(0x7f0000005e00)=[@enable_nested={0x12c, 0x18}, @uexit={0x0, 0x18, 0x4}, @nested_create_vm={0x12d, 0x18, 0x2}], 0x48}) syz_kvm_setup_cpu$ppc64(r14, r29, &(0x7f0000c37000/0x18000)=nil, &(0x7f0000006100)=[{0x0, &(0x7f0000005ec0)="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", 0x230}], 0x1, 0x1, &(0x7f0000006140)=[@featur2={0x1, 0x7}], 0x1) syz_kvm_setup_syzos_vm$x86(r29, &(0x7f0000c00000/0x400000)=nil) syz_memcpy_off$IO_URING_METADATA_FLAGS(r30, 0x114, &(0x7f0000006180), 0x0, 0x4) r33 = socketcall$auto_SYS_SOCKET(0x1, &(0x7f0000006240)=0x5) shmctl$auto_SHM_INFO(0x80000000, 0xe, &(0x7f0000006340)={{0xfffffffa, r11, r27, 0x3, 0xffff, 0xe6b, 0x7}, 0x0, 0x357b, 0x3, 0x8000000000000000, @raw=0x74, @inferred=r21, 0xc0b, 0x0, &(0x7f0000006280)="7010159f68d5ae907137fa70d286a18ba48348f88d1fa097cfe82bb9559e66c97b4ccf3acd9ce240544907f4538170e45e0c6de8adfb6ae94ed44b616a63737814f1894473d9519f2130e8a0e061c96e46a99a5316e46b6b461348bb03dddad70675bcda5921bdb5038cc7dcade7ba3e106cf315e2ad48818a62c7", &(0x7f0000006300)="1368248ad908eb425081239c0a10a514ef06f16fa38bc52b0f03b04d36f544263cb4a0a3ffbbafa80089cf8b02841df433c6b97da8fbfe285fccd05ad4"}) syz_mount_image$fuse(&(0x7f00000061c0), &(0x7f0000006200)='./file0\x00', 0x400, &(0x7f00000063c0)={{'fd', 0x3d, r33}, 0x2c, {'rootmode', 0x3d, 0x1000}, 0x2c, {'user_id', 0x3d, r23}, 0x2c, {'group_id', 0x3d, r34}, 0x2c, {[{@blksize={'blksize', 0x3d, 0x600}}, {}, {@blksize={'blksize', 0x3d, 0x1e00}}, {@max_read={'max_read', 0x3d, 0x100000001}}, {@default_permissions}, {@default_permissions}], [{@euid_lt={'euid<', r13}}, {@subj_user={'subj_user', 0x3d, ','}}, {@uid_lt={'uid<', r26}}, {@audit}, {@dont_measure}]}}, 0x0, 0x0, &(0x7f0000006540)="d3aa92") syz_open_dev$I2C(&(0x7f0000006580), 0x800, 0x40000) syz_open_procfs(r5, &(0x7f00000065c0)='cgroup\x00') syz_open_pts(r14, 0x201) syz_pidfd_open(r35, 0x0) r36 = pkey_alloc(0x0, 0x2) syz_pkey_set(r36, 0x0) syz_socket_connect_nvme_tcp() r37 = syz_usb_connect(0x3, 0x504, &(0x7f0000006600)={{0x12, 0x1, 0x310, 0xf, 0x36, 0x49, 0x8, 0x7d0, 0x4101, 0x4624, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x4f2, 0x3, 0x1, 0xa2, 0x40, 0x64, [{{0x9, 0x4, 0xc2, 0x7, 0xa, 0x50, 0xb3, 0x17, 0x7, [@hid_hid={0x9, 0x21, 0x3, 0xdf, 0x1, {0x22, 0x238}}, @uac_as={[@as_header={0x7, 0x24, 0x1, 0x2, 0x2, 0x2}, @format_type_i_continuous={0xb, 0x24, 0x2, 0x1, 0xde, 0x2, 0x0, 0x5, "", "116df7"}, @format_type_ii_discrete={0xa, 0x24, 0x2, 0x2, 0x8, 0x3, 0x7, ';'}, @format_type_i_continuous={0xa, 0x24, 0x2, 0x1, 0x4, 0x3, 0x1a, 0x9, "0f58"}, @format_type_ii_discrete={0xc, 0x24, 0x2, 0x2, 0xf270, 0x100, 0x7, "3129f9"}, @format_type_i_continuous={0xb, 0x24, 0x2, 0x1, 0x1, 0x3, 0xf9, 0xa3, "", "540613"}]}], [{{0x9, 0x5, 0x3, 0x38, 0x8, 0x1, 0xf9, 0x0, [@uac_iso={0x7, 0x25, 0x1, 0x1, 0x80, 0xffb0}, @generic={0x62, 0xe, "0bef679d6359d71a144a38a22834d12bd19c60b65829f44ebe6b1258a3a7a0cc60f30007c2c4d2a3cb88fb6beb580e628147114ffc6a4e39b19e718fc2cd0fa5af688649abe3db58d0707203283b6bdca05f49fb16b3618fcf4dd01cb2ef3509"}]}}, {{0x9, 0x5, 0x4, 0x0, 0x20, 0x1, 0x2, 0x5, [@generic={0x4e, 0xa, "aade99ccf348061ad92225e05a396a2ebe892ca65de9efa665821e34200c5caa943c9b1a3eb10828e13815e6120c4787a4d395b1e32a8ba1ffb991375879d517862de6e9cb6f723335dd156a"}]}}, {{0x9, 0x5, 0x3, 0xc, 0x3ff, 0x7, 0x0, 0x7f, [@generic={0x33, 0xe, "08b928c563b3fbc136beaf22bf46e0cf55e3f262485f30b28a3f9a3ec901ce8066c6788d469526c55bf0c2b3ca5005539a"}]}}, {{0x9, 0x5, 0xb, 0x4, 0x3ff, 0x3, 0x40, 0x7f, [@uac_iso={0x7, 0x25, 0x1, 0x87, 0x9, 0x4e}, @generic={0xcb, 0x11, "3b9dcacc679086d78f927ab634935a18813b23cceffea69b630aa97cc469907afac2a30327adeb901d9fb900ad82138098cbff5fed7fee2c7d701290ce4ad020a9da29675f8f051399879db57022b89c990120513aaa70c51847b128dd73bdea25cbb545c1ae8352024ca93cd7ea881cbb0920eedef072efe9da61b7bd77a3c085d712c142ca88c39f8edd17d6fb9a7ef8d0fad5a15a333e7ed05e7e9ae6e2a464c3159ab1a60e33afbf29a2f678c8c9e2f8f7a8d03d5582529b277b4be85583e5d81bc95749773042"}]}}, {{0x9, 0x5, 0x1, 0x3, 0x8, 0xe, 0x8, 0x7f, [@generic={0x72, 0x6, "6ee2410469b7a8b23e3255a554b63d5beb1b34b4871894e3df69e7558ce56cc83b83ae1ac9d1dec0882d040a7801a300c7eac26d78d2daff6bd47caca500d46c1b5a0b9e1ada0e7b606b6fd6b39db81c7c954c04d4ede980ea2ca80b113bdb4be747e1b6dc9281d77e85683aaac6534c"}]}}, {{0x9, 0x5, 0xb, 0xc, 0x5bf5a5d27b9960e1, 0x0, 0x1, 0x7}}, {{0x9, 0x5, 0x0, 0x0, 0x10, 0x5, 0x1, 0x77}}, {{0x9, 0x5, 0x5, 0x0, 0x208, 0x1b, 0x9, 0x7}}, {{0x9, 0x5, 0xf, 0x0, 0x40, 0x30, 0x5, 0x7, [@generic={0x50, 0x6, "011daf9ad3aea956d0184e8907d7b0b0a6aa9e921ac64d7a9e5a0ce5b5e0afb47868c9c4a76b6509835bf9ee45a7891eaad172a875634f7f36260124669b2d1b04c2fda38cc936921cb561245efa"}, @generic={0xb7, 0x21, "53542a37449c9d1a4e696a99527d5ad5bdad1c7e724128df50295aa0c61401ca6cd5cd356977f617e8b11448466269116af93b9dce05ded48792719f65bfa91da16b85ee1d6236084d8170f97c0a74f102663c645b0ee1b0fa7904e646438d8b16218604561c1abb98289e3ecba88e78f67361478774462a4d82749646452004b2482082e9c1b2f2972419f6f752e1bec5e1925fce215edb8265344da85b85164db3c633e4e431fec4c609664eac2b6b1f5f7bdc10"}]}}, {{0x9, 0x5, 0xc, 0x10, 0x10, 0x3, 0xf9, 0xff, [@generic={0xba, 0x23, "5c48a51f46fa078d84ce434e722a7fa4e7021ae9d9b76677366de6a10ab3e94e0969d7fc2a24536e1150d94672c5418b02951def7e20c7dfe0aa26adbf0bfd8f6dd351fa30990713537134af9c14fa84dee2b95af8e134542b5a1ad540329a97cbdd1a2422f13e6e03b49f7105a6bf4900ea723fbe14f21d182aeef2cf5162591f8bd38b85d45d723cef02132b5e45467dd8d430c378b8bf2d98403267010379de7bd04c800dfd5fae0c0ddac0b5cffde98ca400dce30ddd"}]}}]}}, {{0x9, 0x4, 0xfc, 0x4, 0x1, 0xff, 0x6, 0x39, 0xc, [], [{{0x9, 0x5, 0x0, 0x2, 0x400, 0x9, 0xdf, 0x2, [@uac_iso={0x7, 0x25, 0x1, 0x3, 0x8, 0x8000}]}}]}}, {{0x9, 0x4, 0x9d, 0x1, 0x3, 0x48, 0x48, 0x40, 0xa, [], [{{0x9, 0x5, 0x1, 0x10, 0x40, 0x2, 0xf1, 0xc, [@uac_iso={0x7, 0x25, 0x1, 0x81, 0x81, 0x5}]}}, {{0x9, 0x5, 0x7, 0x8, 0x40, 0x6, 0x0, 0x1, [@uac_iso={0x7, 0x25, 0x1, 0x2, 0x0, 0x10}, @generic={0x6, 0xe, "555dc78c"}]}}, {{0x9, 0x5, 0x5, 0x4, 0x200, 0x9, 0x40, 0x3}}]}}]}}]}}, &(0x7f0000006c00)={0xa, &(0x7f0000006b40)={0xa, 0x6, 0x200, 0x3b, 0x5, 0x9, 0x40, 0xa4}, 0x30, &(0x7f0000006b80)={0x5, 0xf, 0x30, 0x3, [@ptm_cap={0x3}, @ssp_cap={0x10, 0x10, 0xa, 0x1c, 0x1, 0x7ffffd3, 0xff00, 0x1fb, [0x0]}, @ssp_cap={0x18, 0x10, 0xa, 0xf, 0x3, 0x8, 0xff00, 0xd00, [0x0, 0xffc0cf, 0xff0000]}]}, 0x1, [{0x4, &(0x7f0000006bc0)=@lang_id={0x4, 0x3, 0x42f}}]}) r38 = syz_usb_connect_ath9k(0x3, 0x5a, &(0x7f0000006c40)={{0x12, 0x1, 0x200, 0xff, 0xff, 0xff, 0x40, 0xcf3, 0x9271, 0x108, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x48}}]}}, 0x0) r39 = syz_usb_connect$cdc_ecm(0x6, 0x8f, &(0x7f0000006cc0)={{0x12, 0x1, 0x310, 0x2, 0x0, 0x0, 0x8, 0x525, 0xa4a1, 0x40, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x7d, 0x1, 0x1, 0x6, 0x10, 0xb, [{{0x9, 0x4, 0x0, 0x4, 0x3, 0x2, 0x6, 0x0, 0xe, {{0xb, 0x24, 0x6, 0x0, 0x0, "d60132f149c6"}, {0x5, 0x24, 0x0, 0xbb8}, {0xd, 0x24, 0xf, 0x1, 0x7, 0x32a, 0x8, 0x1f}, [@obex={0x5, 0x24, 0x15, 0x101}, @mdlm={0x15, 0x24, 0x12, 0xfffc}, @network_terminal={0x7, 0x24, 0xa, 0xb, 0x9, 0xf, 0x2}, @call_mgmt={0x5, 0x24, 0x1, 0x1, 0xff}, @obex={0x5, 0x24, 0x15, 0x7ff}, @mbim_extended={0x8, 0x24, 0x1c, 0x5, 0x32, 0xa}]}, {[{{0x9, 0x5, 0x81, 0x3, 0x10, 0x7, 0x99, 0xb2}}], {{0x9, 0x5, 0x82, 0x2, 0x8, 0x1a, 0x7, 0xc4}}, {{0x9, 0x5, 0x3, 0x2, 0x3ff, 0xa6, 0x3, 0xa7}}}}}]}}]}}, &(0x7f0000007240)={0xa, &(0x7f0000006d80)={0xa, 0x6, 0x300, 0xfb, 0x3, 0xc, 0xff, 0x1}, 0x3c, &(0x7f0000006dc0)={0x5, 0xf, 0x3c, 0x6, [@ext_cap={0x7, 0x10, 0x2, 0x4, 0x7, 0x7, 0x56a9}, @wireless={0xb, 0x10, 0x1, 0x4, 0x42, 0x2, 0x3, 0x63ac, 0x9}, @ptm_cap={0x3}, @ext_cap={0x7, 0x10, 0x2, 0x1a, 0x7, 0xb, 0xd5}, @ssp_cap={0x10, 0x10, 0xa, 0x7f, 0x1, 0x12f, 0xf00, 0x1, [0x3fc0]}, @wireless={0xb, 0x10, 0x1, 0x8, 0x40, 0x7, 0x5, 0x2, 0x4}]}, 0x8, [{0x78, &(0x7f0000006e00)=@string={0x78, 0x3, "d7b4cadb72dce27ca7fb5209aad1b3585c8188f06126d3f18edd4cfa47addbd2a6715dd4adfa697f02bcb089ed2013268885f9c785bd7c5d4ee50de3cecd7a9d0b7b2e708226e8acb1e908b1f5c0c2a8132465e451fe49f15e60c8d3b9c84305d0dd8f634480050259cac3ce9cfc95092bd7e491866d"}}, {0x13, &(0x7f0000006e80)=@string={0x13, 0x3, "7d97d9eb8af2943b9985d30caaead89b5a"}}, {0x4, &(0x7f0000006ec0)=@lang_id={0x4, 0x3, 0x44a}}, {0x4, &(0x7f0000006f00)=@lang_id={0x4, 0x3, 0x1c09}}, {0x93, &(0x7f0000006f40)=@string={0x93, 0x3, "a7e5529238f796c9000c753f41b8183140f3914b76bf1c428ebe8d39c6f072b481ecad746274e7c538790d8c730d20517a2244a3781b115c07d40e9ec9c059f12d0d15f46ccf0cde26efa9d02a119e2cc5627c7f4241244d0843ef0018b12fc3cd467b5fdce58a6975d07ac352a42f1615178dcb0990aeca46461306816becdeb896bac765ded81ebd75ba4d97229b15a9"}}, {0xc2, &(0x7f0000007000)=@string={0xc2, 0x3, "d5a3d483012b31e49dfa33fd9593b4b668aa6f3f39301837d951daf256316819f5e71fa651bb06b2af65af27c7bf0fda1eaa1e32231b75f4d06d4923c76013e9d76a12202816ff8740a9fb4f2eceb27bd2e1ab1e7bd4ba7314b33d15e0fe65aa2b2e7ffb3236cb615493391feab3bfb828182fb60c4fd6fef422e106f384be633905ca1aaf83d9ddb2a2902e2a117de4e596145809b3b34b1ea432b412391ffb25ac255e7da11d994e7e9e98e0723a2757e580959dae6fa7ac2afb8dc5384b4a"}}, {0x5b, &(0x7f0000007100)=@string={0x5b, 0x3, "a794090968e46e97b7269fcae0f818bf9a99a50de60e5cda684721be6dc34820f912c338d7dc8ac50d93fc92a2ebde1a02652089726608a9e5877f4cacf91b9eec5b5eb2fc7fa7bb3d26607537f0e55d00793e7cf13bbb367e"}}, {0x90, &(0x7f0000007180)=@string={0x90, 0x3, "f9926b0dae8c462352105ed1c4d3ff50cc9ce982c397e92e576101317190c2327a2ba723844149e55f4b961d0f0defbc7edb70f5d61169074265acd81ceec5a15b66a5e5009236d062994af9afcbe04736aaad6bb55cb30e057c42d0df7481603c3c959b5e4e20f05382a9d9ad4c01680ae3597ef403dedf0b6c53fdc70d13ed116ef9ea902093f1c9f4af4cec25"}}]}) syz_usb_control_io(r39, &(0x7f0000007480)={0x2c, &(0x7f00000072c0)={0x40, 0x7, 0x1b, {0x1b, 0xa, "90730f1d9e91d2e1df577143e18c680eace6d6c12299246128"}}, &(0x7f0000007300)={0x0, 0x3, 0x44, @string={0x44, 0x3, "87d74dd46096809a8f4988ddaa95a532fbc22d8585d1592857ad0ab00c17a4fef3b229a02fe0e3649316bed9f44f588b1f0b47bc86705129440938bd68a29a84f829"}}, &(0x7f0000007380)={0x0, 0xf, 0x41, {0x5, 0xf, 0x41, 0x4, [@ssp_cap={0x20, 0x10, 0xa, 0x0, 0x5, 0xe85, 0xf00, 0x3, [0xff00a0, 0xff00f0, 0x30, 0xf, 0xdfbf]}, @ext_cap={0x7, 0x10, 0x2, 0x4, 0x4, 0x1, 0xff}, @wireless={0xb, 0x10, 0x1, 0x2, 0x1, 0x1, 0x3, 0x9, 0x8}, @ss_cap={0xa, 0x10, 0x3, 0x2, 0x4, 0x3, 0xb6, 0x5}]}}, &(0x7f0000007400)={0x20, 0x29, 0xf, {0xf, 0x29, 0xf, 0x4, 0x6, 0x32, "b2c84f72", "f5fb7b90"}}, &(0x7f0000007440)={0x20, 0x2a, 0xc, {0xc, 0x2a, 0x3a, 0x60, 0x4, 0x4, 0x7, 0x8001, 0x8}}}, &(0x7f0000007980)={0x84, &(0x7f00000074c0)={0x0, 0x0, 0xcf, "9f51c6ee54bfc1fc30d787499ab24493c2f30f78fe088e724ad29badb6c2406874a909d80e000075bbe92f6f4e8b3514481d12b869deb6f47f3b458369b7f024fcc02319e38cb7467c76b370d378ee0256daa3acea1f71be5e4c7d8a50037ba84e62445bbd990a26b44f60198d63505fbf005b96637abf5eb692a2ed0d582692e3f259387ed9d1955917dc53a246eb20e281e78386ed8734b81075e43b5b3e15ea60dbd497e07ad8847992dd87831b20d05263c108d70117e52170efac1777d3d376876358c2297172b2a023b52c05"}, &(0x7f00000075c0)={0x0, 0xa, 0x1, 0x2}, &(0x7f0000007600)={0x0, 0x8, 0x1, 0xfc}, &(0x7f0000007640)={0x20, 0x0, 0x4, {0x3, 0x1}}, &(0x7f0000007680)={0x20, 0x0, 0x4, {0x1d20, 0x20}}, &(0x7f00000076c0)={0x40, 0x7, 0x2, 0xfff8}, &(0x7f0000007700)={0x40, 0x9, 0x1, 0xd}, &(0x7f0000007740)={0x40, 0xb, 0x2, "2289"}, &(0x7f0000007780)={0x40, 0xf, 0x2, 0x2}, &(0x7f00000077c0)={0x40, 0x13, 0x6, @broadcast}, &(0x7f0000007800)={0x40, 0x17, 0x6, @random="eefa7a620165"}, &(0x7f0000007840)={0x40, 0x19, 0x2, "01d3"}, &(0x7f0000007880)={0x40, 0x1a, 0x2, 0x5}, &(0x7f00000078c0)={0x40, 0x1c, 0x1, 0xff}, &(0x7f0000007900)={0x40, 0x1e, 0x1, 0xf7}, &(0x7f0000007940)={0x40, 0x21, 0x1, 0xb}}) syz_usb_disconnect(r38) r40 = syz_usb_connect$hid(0x0, 0x3f, &(0x7f0000007a40)={{0x12, 0x1, 0x110, 0x0, 0x0, 0x0, 0xff, 0x46d, 0xc08d, 0x40, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x2d, 0x1, 0x1, 0x4, 0x50, 0x10, [{{0x9, 0x4, 0x0, 0xf9, 0x2, 0x3, 0x1, 0x2, 0x5, {0x9, 0x21, 0x81, 0x8, 0x1, {0x22, 0x6e7}}, {{{0x9, 0x5, 0x81, 0x3, 0x10, 0x8, 0xc, 0x6e}}, [{{0x9, 0x5, 0x2, 0x3, 0x200, 0x8, 0x1, 0x50}}]}}}]}}]}}, &(0x7f0000007f40)={0xa, &(0x7f0000007a80)={0xa, 0x6, 0x310, 0x48, 0xa5, 0xca, 0x8, 0x10}, 0x30, &(0x7f0000007ac0)={0x5, 0xf, 0x30, 0x4, [@ss_cap={0xa, 0x10, 0x3, 0x0, 0x5, 0x0, 0x1, 0x8a}, @ssp_cap={0x10, 0x10, 0xa, 0xa, 0x1, 0x0, 0xf00f, 0x7, [0x3f00]}, @ss_cap={0xa, 0x10, 0x3, 0x0, 0x4, 0x4, 0x8, 0xfff8}, @ext_cap={0x7, 0x10, 0x2, 0x4, 0x0, 0x5, 0x8001}]}, 0xa, [{0x4, &(0x7f0000007b00)=@lang_id={0x4, 0x3, 0x437}}, {0xf2, &(0x7f0000007b40)=@string={0xf2, 0x3, "f0019969b38f6afabd6c105967f2b79c116bf52e6af549271939cbeacdab5c8503cee7d1a67a62ea491b6b2f8647133f15b8e9707e4a77577e8afd8a1284459b66c7be93c43e84efcfc2f73e93d295998cc2f495ae5b1a3d5e12ef6e64664a3b5c79528b0119f78b0a61d807232537eb3d9c09add93823e6f878bbba00898be1017faf4e5f14d387401c45645954c04f8c83f9e5f0ae9913d9ccb88e7516d80f8e21c3b610429258169248a016de144abce7905f4dd3bf2698e9f3a5febc7c10ef4ed298e5f8facbb3c9344bb3ab33568a0f64f428d60dabe2bfe795df0603cdf76f606241fdd89c8ff9fe55ee2395fd"}}, {0x4, &(0x7f0000007c40)=@lang_id={0x4, 0x3, 0x2c0a}}, {0x89, &(0x7f0000007c80)=@string={0x89, 0x3, "05b7615d7a2ba83f5916d585e5290669a0c243e1c65f43d6c7680767f0da6805ce3566413a20f4b8664b77799c5c6061d9d19075d2f89b880caa622d3aa9108e5222e55336bf7850d2f7990a1314b0be81d606f8a99a6705e0ac44872072366abaea5f97d7ca08ed1eb25b707c92991e5537f945aa401d761349b628d6c928c1cfe5b09fd13272"}}, {0xb8, &(0x7f0000007d40)=@string={0xb8, 0x3, "f04a78648bb13ad6c53b44e42ed2f24d3205bf5161674ff375ecfa9f710dd4d52e29779bc4c1d41faf1b2e02fa2cb4ca6c449681b5c88b3775f82babde2258f8a001d811f8b64ce0753b228c161809770f39160ba4ea92490a38f82c3f18b44c81a148c48bbc4f716e64a85a985f3570d6132a4ac6e97f0ae7296582879c5d4e277be3d5867dc3df2606879bd5281225a34f3feba436eec16ddfbe611574be645a71c5e8be494e27918333f2431aeff2e9fed0608428"}}, {0x4, &(0x7f0000007e00)=@lang_id={0x4, 0x3, 0x40f}}, {0x4, &(0x7f0000007e40)=@lang_id={0x4, 0x3, 0x860}}, {0x4, &(0x7f0000007e80)=@lang_id={0x4, 0x3, 0xf4ef}}, {0x4, &(0x7f0000007ec0)=@lang_id={0x4, 0x3, 0x3001}}, {0x4, &(0x7f0000007f00)=@lang_id={0x4, 0x3, 0x2009}}]}) syz_usb_ep_read(r40, 0x0, 0x1000, &(0x7f0000008000)=""/4096) syz_usb_ep_write(r37, 0x6, 0x94, &(0x7f0000009000)="57bba2f04f3945da7a47037710f6d53d8dfad8a96c57e11cf5fcfee434fce88038e1904ecc2712334118e5002b0c107c286eb90314233fd5ce1d9ea5da0076741102d88517463ff118bd931282412de1f5ea71eb2bec91b82b7f7b64f8aae1d58e32de1deeb1c8264d59d639a1945f0090275e6bdbf18e86685ccb60a5fec9c7cebac5d05b5c84e6116f89d443fad3ce74d82080") syz_usbip_server_init(0x5) csource_test.go:158: failed to build program: // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifndef __NR_clone3 #define __NR_clone3 435 #endif #ifndef __NR_io_uring_setup #define __NR_io_uring_setup 425 #endif #ifndef __NR_memfd_create #define __NR_memfd_create 319 #endif #ifndef __NR_pidfd_open #define __NR_pidfd_open 434 #endif #ifndef __NR_pkey_alloc #define __NR_pkey_alloc 330 #endif #ifndef __NR_statx #define __NR_statx 332 #endif static unsigned long long procid; static void sleep_ms(uint64_t ms) { usleep(ms * 1000); } static uint64_t current_time_ms(void) { struct timespec ts; if (clock_gettime(CLOCK_MONOTONIC, &ts)) exit(1); return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000; } static void use_temporary_dir(void) { char tmpdir_template[] = "./syzkaller.XXXXXX"; char* tmpdir = mkdtemp(tmpdir_template); if (!tmpdir) exit(1); if (chmod(tmpdir, 0777)) exit(1); if (chdir(tmpdir)) exit(1); } #define BITMASK(bf_off,bf_len) (((1ull << (bf_len)) - 1) << (bf_off)) #define STORE_BY_BITMASK(type,htobe,addr,val,bf_off,bf_len) *(type*)(addr) = htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) | (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len)))) static bool write_file(const char* file, const char* what, ...) { char buf[1024]; va_list args; va_start(args, what); vsnprintf(buf, sizeof(buf), what, args); va_end(args); buf[sizeof(buf) - 1] = 0; int len = strlen(buf); int fd = open(file, O_WRONLY | O_CLOEXEC); if (fd == -1) return false; if (write(fd, buf, len) != len) { int err = errno; close(fd); errno = err; return false; } close(fd); return true; } struct nlmsg { char* pos; int nesting; struct nlattr* nested[8]; char buf[4096]; }; static void netlink_init(struct nlmsg* nlmsg, int typ, int flags, const void* data, int size) { memset(nlmsg, 0, sizeof(*nlmsg)); struct nlmsghdr* hdr = (struct nlmsghdr*)nlmsg->buf; hdr->nlmsg_type = typ; hdr->nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK | flags; memcpy(hdr + 1, data, size); nlmsg->pos = (char*)(hdr + 1) + NLMSG_ALIGN(size); } static void netlink_attr(struct nlmsg* nlmsg, int typ, const void* data, int size) { struct nlattr* attr = (struct nlattr*)nlmsg->pos; attr->nla_len = sizeof(*attr) + size; attr->nla_type = typ; if (size > 0) memcpy(attr + 1, data, size); nlmsg->pos += NLMSG_ALIGN(attr->nla_len); } static int netlink_send_ext(struct nlmsg* nlmsg, int sock, uint16_t reply_type, int* reply_len, bool dofail) { if (nlmsg->pos > nlmsg->buf + sizeof(nlmsg->buf) || nlmsg->nesting) exit(1); struct nlmsghdr* hdr = (struct nlmsghdr*)nlmsg->buf; hdr->nlmsg_len = nlmsg->pos - nlmsg->buf; struct sockaddr_nl addr; memset(&addr, 0, sizeof(addr)); addr.nl_family = AF_NETLINK; ssize_t n = sendto(sock, nlmsg->buf, hdr->nlmsg_len, 0, (struct sockaddr*)&addr, sizeof(addr)); if (n != (ssize_t)hdr->nlmsg_len) { if (dofail) exit(1); return -1; } n = recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0); if (reply_len) *reply_len = 0; if (n < 0) { if (dofail) exit(1); return -1; } if (n < (ssize_t)sizeof(struct nlmsghdr)) { errno = EINVAL; if (dofail) exit(1); return -1; } if (hdr->nlmsg_type == NLMSG_DONE) return 0; if (reply_len && hdr->nlmsg_type == reply_type) { *reply_len = n; return 0; } if (n < (ssize_t)(sizeof(struct nlmsghdr) + sizeof(struct nlmsgerr))) { errno = EINVAL; if (dofail) exit(1); return -1; } if (hdr->nlmsg_type != NLMSG_ERROR) { errno = EINVAL; if (dofail) exit(1); return -1; } errno = -((struct nlmsgerr*)(hdr + 1))->error; return -errno; } static int netlink_query_family_id(struct nlmsg* nlmsg, int sock, const char* family_name, bool dofail) { struct genlmsghdr genlhdr; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = CTRL_CMD_GETFAMILY; netlink_init(nlmsg, GENL_ID_CTRL, 0, &genlhdr, sizeof(genlhdr)); netlink_attr(nlmsg, CTRL_ATTR_FAMILY_NAME, family_name, strnlen(family_name, GENL_NAMSIZ - 1) + 1); int n = 0; int err = netlink_send_ext(nlmsg, sock, GENL_ID_CTRL, &n, dofail); if (err < 0) { return -1; } uint16_t id = 0; struct nlattr* attr = (struct nlattr*)(nlmsg->buf + NLMSG_HDRLEN + NLMSG_ALIGN(sizeof(genlhdr))); for (; (char*)attr < nlmsg->buf + n; attr = (struct nlattr*)((char*)attr + NLMSG_ALIGN(attr->nla_len))) { if (attr->nla_type == CTRL_ATTR_FAMILY_ID) { id = *(uint16_t*)(attr + 1); break; } } if (!id) { errno = EINVAL; return -1; } recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0); return id; } const int kInitNetNsFd = 201; #define WIFI_INITIAL_DEVICE_COUNT 2 #define WIFI_MAC_BASE { 0x08, 0x02, 0x11, 0x00, 0x00, 0x00} #define WIFI_IBSS_BSSID { 0x50, 0x50, 0x50, 0x50, 0x50, 0x50} #define WIFI_IBSS_SSID { 0x10, 0x10, 0x10, 0x10, 0x10, 0x10} #define WIFI_DEFAULT_FREQUENCY 2412 #define WIFI_DEFAULT_SIGNAL 0 #define WIFI_DEFAULT_RX_RATE 1 #define HWSIM_CMD_REGISTER 1 #define HWSIM_CMD_FRAME 2 #define HWSIM_CMD_NEW_RADIO 4 #define HWSIM_ATTR_SUPPORT_P2P_DEVICE 14 #define HWSIM_ATTR_PERM_ADDR 22 #define IF_OPER_UP 6 struct join_ibss_props { int wiphy_freq; bool wiphy_freq_fixed; uint8_t* mac; uint8_t* ssid; int ssid_len; }; static int set_interface_state(const char* interface_name, int on) { struct ifreq ifr; int sock = socket(AF_INET, SOCK_DGRAM, 0); if (sock < 0) { return -1; } memset(&ifr, 0, sizeof(ifr)); strcpy(ifr.ifr_name, interface_name); int ret = ioctl(sock, SIOCGIFFLAGS, &ifr); if (ret < 0) { close(sock); return -1; } if (on) ifr.ifr_flags |= IFF_UP; else ifr.ifr_flags &= ~IFF_UP; ret = ioctl(sock, SIOCSIFFLAGS, &ifr); close(sock); if (ret < 0) { return -1; } return 0; } static int nl80211_set_interface(struct nlmsg* nlmsg, int sock, int nl80211_family, uint32_t ifindex, uint32_t iftype, bool dofail) { struct genlmsghdr genlhdr; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = NL80211_CMD_SET_INTERFACE; netlink_init(nlmsg, nl80211_family, 0, &genlhdr, sizeof(genlhdr)); netlink_attr(nlmsg, NL80211_ATTR_IFINDEX, &ifindex, sizeof(ifindex)); netlink_attr(nlmsg, NL80211_ATTR_IFTYPE, &iftype, sizeof(iftype)); int err = netlink_send_ext(nlmsg, sock, 0, NULL, dofail); if (err < 0) { } return err; } static int nl80211_join_ibss(struct nlmsg* nlmsg, int sock, int nl80211_family, uint32_t ifindex, struct join_ibss_props* props, bool dofail) { struct genlmsghdr genlhdr; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = NL80211_CMD_JOIN_IBSS; netlink_init(nlmsg, nl80211_family, 0, &genlhdr, sizeof(genlhdr)); netlink_attr(nlmsg, NL80211_ATTR_IFINDEX, &ifindex, sizeof(ifindex)); netlink_attr(nlmsg, NL80211_ATTR_SSID, props->ssid, props->ssid_len); netlink_attr(nlmsg, NL80211_ATTR_WIPHY_FREQ, &(props->wiphy_freq), sizeof(props->wiphy_freq)); if (props->mac) netlink_attr(nlmsg, NL80211_ATTR_MAC, props->mac, ETH_ALEN); if (props->wiphy_freq_fixed) netlink_attr(nlmsg, NL80211_ATTR_FREQ_FIXED, NULL, 0); int err = netlink_send_ext(nlmsg, sock, 0, NULL, dofail); if (err < 0) { } return err; } static int get_ifla_operstate(struct nlmsg* nlmsg, int ifindex, bool dofail) { struct ifinfomsg info; memset(&info, 0, sizeof(info)); info.ifi_family = AF_UNSPEC; info.ifi_index = ifindex; int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE); if (sock == -1) { return -1; } netlink_init(nlmsg, RTM_GETLINK, 0, &info, sizeof(info)); int n; int err = netlink_send_ext(nlmsg, sock, RTM_NEWLINK, &n, dofail); close(sock); if (err) { return -1; } struct rtattr* attr = IFLA_RTA(NLMSG_DATA(nlmsg->buf)); for (; RTA_OK(attr, n); attr = RTA_NEXT(attr, n)) { if (attr->rta_type == IFLA_OPERSTATE) return *((int32_t*)RTA_DATA(attr)); } return -1; } static int await_ifla_operstate(struct nlmsg* nlmsg, char* interface, int operstate, bool dofail) { int ifindex = if_nametoindex(interface); while (true) { usleep(1000); int ret = get_ifla_operstate(nlmsg, ifindex, dofail); if (ret < 0) return ret; if (ret == operstate) return 0; } return 0; } static int nl80211_setup_ibss_interface(struct nlmsg* nlmsg, int sock, int nl80211_family_id, char* interface, struct join_ibss_props* ibss_props, bool dofail) { int ifindex = if_nametoindex(interface); if (ifindex == 0) { return -1; } int ret = nl80211_set_interface(nlmsg, sock, nl80211_family_id, ifindex, NL80211_IFTYPE_ADHOC, dofail); if (ret < 0) { return -1; } ret = set_interface_state(interface, 1); if (ret < 0) { return -1; } ret = nl80211_join_ibss(nlmsg, sock, nl80211_family_id, ifindex, ibss_props, dofail); if (ret < 0) { return -1; } return 0; } #define SIZEOF_IO_URING_SQE 64 #define SIZEOF_IO_URING_CQE 16 #define SQ_HEAD_OFFSET 0 #define SQ_TAIL_OFFSET 64 #define SQ_RING_MASK_OFFSET 256 #define SQ_RING_ENTRIES_OFFSET 264 #define SQ_FLAGS_OFFSET 276 #define SQ_DROPPED_OFFSET 272 #define CQ_HEAD_OFFSET 128 #define CQ_TAIL_OFFSET 192 #define CQ_RING_MASK_OFFSET 260 #define CQ_RING_ENTRIES_OFFSET 268 #define CQ_RING_OVERFLOW_OFFSET 284 #define CQ_FLAGS_OFFSET 280 #define CQ_CQES_OFFSET 320 struct io_uring_cqe { uint64_t user_data; uint32_t res; uint32_t flags; }; static long syz_io_uring_complete(volatile long a0) { char* ring_ptr = (char*)a0; uint32_t cq_ring_mask = *(uint32_t*)(ring_ptr + CQ_RING_MASK_OFFSET); uint32_t* cq_head_ptr = (uint32_t*)(ring_ptr + CQ_HEAD_OFFSET); uint32_t cq_head = *cq_head_ptr & cq_ring_mask; uint32_t cq_head_next = *cq_head_ptr + 1; char* cqe_src = ring_ptr + CQ_CQES_OFFSET + cq_head * SIZEOF_IO_URING_CQE; struct io_uring_cqe cqe; memcpy(&cqe, cqe_src, sizeof(cqe)); __atomic_store_n(cq_head_ptr, cq_head_next, __ATOMIC_RELEASE); return (cqe.user_data == 0x12345 || cqe.user_data == 0x23456) ? (long)cqe.res : (long)-1; } struct io_sqring_offsets { uint32_t head; uint32_t tail; uint32_t ring_mask; uint32_t ring_entries; uint32_t flags; uint32_t dropped; uint32_t array; uint32_t resv1; uint64_t resv2; }; struct io_cqring_offsets { uint32_t head; uint32_t tail; uint32_t ring_mask; uint32_t ring_entries; uint32_t overflow; uint32_t cqes; uint64_t resv[2]; }; struct io_uring_params { uint32_t sq_entries; uint32_t cq_entries; uint32_t flags; uint32_t sq_thread_cpu; uint32_t sq_thread_idle; uint32_t features; uint32_t resv[4]; struct io_sqring_offsets sq_off; struct io_cqring_offsets cq_off; }; #define IORING_OFF_SQ_RING 0 #define IORING_OFF_SQES 0x10000000ULL #define IORING_SETUP_SQE128 (1U << 10) #define IORING_SETUP_CQE32 (1U << 11) static long syz_io_uring_setup(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { uint32_t entries = (uint32_t)a0; struct io_uring_params* setup_params = (struct io_uring_params*)a1; void** ring_ptr_out = (void**)a2; void** sqes_ptr_out = (void**)a3; setup_params->flags &= ~(IORING_SETUP_CQE32 | IORING_SETUP_SQE128); uint32_t fd_io_uring = syscall(__NR_io_uring_setup, entries, setup_params); uint32_t sq_ring_sz = setup_params->sq_off.array + setup_params->sq_entries * sizeof(uint32_t); uint32_t cq_ring_sz = setup_params->cq_off.cqes + setup_params->cq_entries * SIZEOF_IO_URING_CQE; uint32_t ring_sz = sq_ring_sz > cq_ring_sz ? sq_ring_sz : cq_ring_sz; *ring_ptr_out = mmap(0, ring_sz, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_POPULATE, fd_io_uring, IORING_OFF_SQ_RING); uint32_t sqes_sz = setup_params->sq_entries * SIZEOF_IO_URING_SQE; *sqes_ptr_out = mmap(0, sqes_sz, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_POPULATE, fd_io_uring, IORING_OFF_SQES); uint32_t* array = (uint32_t*)((uintptr_t)*ring_ptr_out + setup_params->sq_off.array); for (uint32_t index = 0; index < entries; index++) array[index] = index; return fd_io_uring; } static long syz_io_uring_submit(volatile long a0, volatile long a1, volatile long a2) { char* ring_ptr = (char*)a0; char* sqes_ptr = (char*)a1; char* sqe = (char*)a2; uint32_t sq_ring_mask = *(uint32_t*)(ring_ptr + SQ_RING_MASK_OFFSET); uint32_t* sq_tail_ptr = (uint32_t*)(ring_ptr + SQ_TAIL_OFFSET); uint32_t sq_tail = *sq_tail_ptr & sq_ring_mask; char* sqe_dest = sqes_ptr + sq_tail * SIZEOF_IO_URING_SQE; memcpy(sqe_dest, sqe, SIZEOF_IO_URING_SQE); uint32_t sq_tail_next = *sq_tail_ptr + 1; __atomic_store_n(sq_tail_ptr, sq_tail_next, __ATOMIC_RELEASE); return 0; } #define VHCI_HC_PORTS 8 #define VHCI_PORTS (VHCI_HC_PORTS * 2) static long syz_usbip_server_init(volatile long a0) { static int port_alloc[2]; int speed = (int)a0; bool usb3 = (speed == USB_SPEED_SUPER); int socket_pair[2]; if (socketpair(AF_UNIX, SOCK_STREAM, 0, socket_pair)) { return -1; } int client_fd = socket_pair[0]; int server_fd = socket_pair[1]; int available_port_num = __atomic_fetch_add(&port_alloc[usb3], 1, __ATOMIC_RELAXED); if (available_port_num > VHCI_HC_PORTS) { return -1; } int port_num = procid * VHCI_PORTS + usb3 * VHCI_HC_PORTS + available_port_num; char buffer[100]; sprintf(buffer, "%d %d %s %d", port_num, client_fd, "0", speed); write_file("/sys/devices/platform/vhci_hcd.0/attach", buffer); return server_fd; } #define BTF_MAGIC 0xeB9F struct btf_header { __u16 magic; __u8 version; __u8 flags; __u32 hdr_len; __u32 type_off; __u32 type_len; __u32 str_off; __u32 str_len; }; #define BTF_INFO_KIND(info) (((info) >> 24) & 0x0f) #define BTF_INFO_VLEN(info) ((info) & 0xffff) #define BTF_KIND_INT 1 #define BTF_KIND_ARRAY 3 #define BTF_KIND_STRUCT 4 #define BTF_KIND_UNION 5 #define BTF_KIND_ENUM 6 #define BTF_KIND_FUNC_PROTO 13 #define BTF_KIND_VAR 14 #define BTF_KIND_DATASEC 15 struct btf_type { __u32 name_off; __u32 info; union { __u32 size; __u32 type; }; }; struct btf_enum { __u32 name_off; __s32 val; }; struct btf_array { __u32 type; __u32 index_type; __u32 nelems; }; struct btf_member { __u32 name_off; __u32 type; __u32 offset; }; struct btf_param { __u32 name_off; __u32 type; }; struct btf_var { __u32 linkage; }; struct btf_var_secinfo { __u32 type; __u32 offset; __u32 size; }; #define VMLINUX_MAX_SUPPORT_SIZE (10 * 1024 * 1024) static char* read_btf_vmlinux() { static bool is_read = false; static char buf[VMLINUX_MAX_SUPPORT_SIZE]; if (is_read) return buf; int fd = open("/sys/kernel/btf/vmlinux", O_RDONLY); if (fd < 0) return NULL; unsigned long bytes_read = 0; for (;;) { ssize_t ret = read(fd, buf + bytes_read, VMLINUX_MAX_SUPPORT_SIZE - bytes_read); if (ret < 0 || bytes_read + ret == VMLINUX_MAX_SUPPORT_SIZE) return NULL; if (ret == 0) break; bytes_read += ret; } is_read = true; return buf; } static long syz_btf_id_by_name(volatile long a0) { char* target = (char*)a0; char* vmlinux = read_btf_vmlinux(); if (vmlinux == NULL) return -1; struct btf_header* btf_header = (struct btf_header*)vmlinux; if (btf_header->magic != BTF_MAGIC) return -1; char* btf_type_sec = vmlinux + btf_header->hdr_len + btf_header->type_off; char* btf_str_sec = vmlinux + btf_header->hdr_len + btf_header->str_off; unsigned int bytes_parsed = 0; long idx = 1; while (bytes_parsed < btf_header->type_len) { struct btf_type* btf_type = (struct btf_type*)(btf_type_sec + bytes_parsed); uint32_t kind = BTF_INFO_KIND(btf_type->info); uint32_t vlen = BTF_INFO_VLEN(btf_type->info); char* name = btf_str_sec + btf_type->name_off; if (strcmp(name, target) == 0) return idx; size_t skip; switch (kind) { case BTF_KIND_INT: skip = sizeof(uint32_t); break; case BTF_KIND_ENUM: skip = sizeof(struct btf_enum) * vlen; break; case BTF_KIND_ARRAY: skip = sizeof(struct btf_array); break; case BTF_KIND_STRUCT: case BTF_KIND_UNION: skip = sizeof(struct btf_member) * vlen; break; case BTF_KIND_FUNC_PROTO: skip = sizeof(struct btf_param) * vlen; break; case BTF_KIND_VAR: skip = sizeof(struct btf_var); break; case BTF_KIND_DATASEC: skip = sizeof(struct btf_var_secinfo) * vlen; break; default: skip = 0; } bytes_parsed += sizeof(struct btf_type) + skip; idx++; } return -1; } static long syz_memcpy_off(volatile long a0, volatile long a1, volatile long a2, volatile long a3, volatile long a4) { char* dest = (char*)a0; uint32_t dest_off = (uint32_t)a1; char* src = (char*)a2; uint32_t src_off = (uint32_t)a3; size_t n = (size_t)a4; return (long)memcpy(dest + dest_off, src + src_off, n); } static long syz_create_resource(volatile long val) { return val; } #define MAX_FDS 30 #define USB_MAX_IFACE_NUM 4 #define USB_MAX_EP_NUM 32 #define USB_MAX_FDS 6 struct usb_endpoint_index { struct usb_endpoint_descriptor desc; int handle; }; struct usb_iface_index { struct usb_interface_descriptor* iface; uint8_t bInterfaceNumber; uint8_t bAlternateSetting; uint8_t bInterfaceClass; struct usb_endpoint_index eps[USB_MAX_EP_NUM]; int eps_num; }; struct usb_device_index { struct usb_device_descriptor* dev; struct usb_config_descriptor* config; uint8_t bDeviceClass; uint8_t bMaxPower; int config_length; struct usb_iface_index ifaces[USB_MAX_IFACE_NUM]; int ifaces_num; int iface_cur; }; struct usb_info { int fd; struct usb_device_index index; }; static struct usb_info usb_devices[USB_MAX_FDS]; static struct usb_device_index* lookup_usb_index(int fd) { for (int i = 0; i < USB_MAX_FDS; i++) { if (__atomic_load_n(&usb_devices[i].fd, __ATOMIC_ACQUIRE) == fd) return &usb_devices[i].index; } return NULL; } static int usb_devices_num; static bool parse_usb_descriptor(const char* buffer, size_t length, struct usb_device_index* index) { if (length < sizeof(*index->dev) + sizeof(*index->config)) return false; memset(index, 0, sizeof(*index)); index->dev = (struct usb_device_descriptor*)buffer; index->config = (struct usb_config_descriptor*)(buffer + sizeof(*index->dev)); index->bDeviceClass = index->dev->bDeviceClass; index->bMaxPower = index->config->bMaxPower; index->config_length = length - sizeof(*index->dev); index->iface_cur = -1; size_t offset = 0; while (true) { if (offset + 1 >= length) break; uint8_t desc_length = buffer[offset]; uint8_t desc_type = buffer[offset + 1]; if (desc_length <= 2) break; if (offset + desc_length > length) break; if (desc_type == USB_DT_INTERFACE && index->ifaces_num < USB_MAX_IFACE_NUM) { struct usb_interface_descriptor* iface = (struct usb_interface_descriptor*)(buffer + offset); index->ifaces[index->ifaces_num].iface = iface; index->ifaces[index->ifaces_num].bInterfaceNumber = iface->bInterfaceNumber; index->ifaces[index->ifaces_num].bAlternateSetting = iface->bAlternateSetting; index->ifaces[index->ifaces_num].bInterfaceClass = iface->bInterfaceClass; index->ifaces_num++; } if (desc_type == USB_DT_ENDPOINT && index->ifaces_num > 0) { struct usb_iface_index* iface = &index->ifaces[index->ifaces_num - 1]; if (iface->eps_num < USB_MAX_EP_NUM) { memcpy(&iface->eps[iface->eps_num].desc, buffer + offset, sizeof(iface->eps[iface->eps_num].desc)); iface->eps_num++; } } offset += desc_length; } return true; } static struct usb_device_index* add_usb_index(int fd, const char* dev, size_t dev_len) { int i = __atomic_fetch_add(&usb_devices_num, 1, __ATOMIC_RELAXED); if (i >= USB_MAX_FDS) return NULL; if (!parse_usb_descriptor(dev, dev_len, &usb_devices[i].index)) return NULL; __atomic_store_n(&usb_devices[i].fd, fd, __ATOMIC_RELEASE); return &usb_devices[i].index; } struct vusb_connect_string_descriptor { uint32_t len; char* str; } __attribute__((packed)); struct vusb_connect_descriptors { uint32_t qual_len; char* qual; uint32_t bos_len; char* bos; uint32_t strs_len; struct vusb_connect_string_descriptor strs[0]; } __attribute__((packed)); static const char default_string[] = { 8, USB_DT_STRING, 's', 0, 'y', 0, 'z', 0 }; static const char default_lang_id[] = { 4, USB_DT_STRING, 0x09, 0x04 }; static bool lookup_connect_response_in(int fd, const struct vusb_connect_descriptors* descs, const struct usb_ctrlrequest* ctrl, struct usb_qualifier_descriptor* qual, char** response_data, uint32_t* response_length) { struct usb_device_index* index = lookup_usb_index(fd); uint8_t str_idx; if (!index) return false; switch (ctrl->bRequestType & USB_TYPE_MASK) { case USB_TYPE_STANDARD: switch (ctrl->bRequest) { case USB_REQ_GET_DESCRIPTOR: switch (ctrl->wValue >> 8) { case USB_DT_DEVICE: *response_data = (char*)index->dev; *response_length = sizeof(*index->dev); return true; case USB_DT_CONFIG: *response_data = (char*)index->config; *response_length = index->config_length; return true; case USB_DT_STRING: str_idx = (uint8_t)ctrl->wValue; if (descs && str_idx < descs->strs_len) { *response_data = descs->strs[str_idx].str; *response_length = descs->strs[str_idx].len; return true; } if (str_idx == 0) { *response_data = (char*)&default_lang_id[0]; *response_length = default_lang_id[0]; return true; } *response_data = (char*)&default_string[0]; *response_length = default_string[0]; return true; case USB_DT_BOS: *response_data = descs->bos; *response_length = descs->bos_len; return true; case USB_DT_DEVICE_QUALIFIER: if (!descs->qual) { qual->bLength = sizeof(*qual); qual->bDescriptorType = USB_DT_DEVICE_QUALIFIER; qual->bcdUSB = index->dev->bcdUSB; qual->bDeviceClass = index->dev->bDeviceClass; qual->bDeviceSubClass = index->dev->bDeviceSubClass; qual->bDeviceProtocol = index->dev->bDeviceProtocol; qual->bMaxPacketSize0 = index->dev->bMaxPacketSize0; qual->bNumConfigurations = index->dev->bNumConfigurations; qual->bRESERVED = 0; *response_data = (char*)qual; *response_length = sizeof(*qual); return true; } *response_data = descs->qual; *response_length = descs->qual_len; return true; default: break; } break; default: break; } break; default: break; } return false; } typedef bool (*lookup_connect_out_response_t)(int fd, const struct vusb_connect_descriptors* descs, const struct usb_ctrlrequest* ctrl, bool* done); static bool lookup_connect_response_out_generic(int fd, const struct vusb_connect_descriptors* descs, const struct usb_ctrlrequest* ctrl, bool* done) { switch (ctrl->bRequestType & USB_TYPE_MASK) { case USB_TYPE_STANDARD: switch (ctrl->bRequest) { case USB_REQ_SET_CONFIGURATION: *done = true; return true; default: break; } break; } return false; } #define ATH9K_FIRMWARE_DOWNLOAD 0x30 #define ATH9K_FIRMWARE_DOWNLOAD_COMP 0x31 static bool lookup_connect_response_out_ath9k(int fd, const struct vusb_connect_descriptors* descs, const struct usb_ctrlrequest* ctrl, bool* done) { switch (ctrl->bRequestType & USB_TYPE_MASK) { case USB_TYPE_STANDARD: switch (ctrl->bRequest) { case USB_REQ_SET_CONFIGURATION: return true; default: break; } break; case USB_TYPE_VENDOR: switch (ctrl->bRequest) { case ATH9K_FIRMWARE_DOWNLOAD: return true; case ATH9K_FIRMWARE_DOWNLOAD_COMP: *done = true; return true; default: break; } break; } return false; } struct vusb_descriptor { uint8_t req_type; uint8_t desc_type; uint32_t len; char data[0]; } __attribute__((packed)); struct vusb_descriptors { uint32_t len; struct vusb_descriptor* generic; struct vusb_descriptor* descs[0]; } __attribute__((packed)); struct vusb_response { uint8_t type; uint8_t req; uint32_t len; char data[0]; } __attribute__((packed)); struct vusb_responses { uint32_t len; struct vusb_response* generic; struct vusb_response* resps[0]; } __attribute__((packed)); static bool lookup_control_response(const struct vusb_descriptors* descs, const struct vusb_responses* resps, struct usb_ctrlrequest* ctrl, char** response_data, uint32_t* response_length) { int descs_num = 0; int resps_num = 0; if (descs) descs_num = (descs->len - offsetof(struct vusb_descriptors, descs)) / sizeof(descs->descs[0]); if (resps) resps_num = (resps->len - offsetof(struct vusb_responses, resps)) / sizeof(resps->resps[0]); uint8_t req = ctrl->bRequest; uint8_t req_type = ctrl->bRequestType & USB_TYPE_MASK; uint8_t desc_type = ctrl->wValue >> 8; if (req == USB_REQ_GET_DESCRIPTOR) { int i; for (i = 0; i < descs_num; i++) { struct vusb_descriptor* desc = descs->descs[i]; if (!desc) continue; if (desc->req_type == req_type && desc->desc_type == desc_type) { *response_length = desc->len; if (*response_length != 0) *response_data = &desc->data[0]; else *response_data = NULL; return true; } } if (descs && descs->generic) { *response_data = &descs->generic->data[0]; *response_length = descs->generic->len; return true; } } else { int i; for (i = 0; i < resps_num; i++) { struct vusb_response* resp = resps->resps[i]; if (!resp) continue; if (resp->type == req_type && resp->req == req) { *response_length = resp->len; if (*response_length != 0) *response_data = &resp->data[0]; else *response_data = NULL; return true; } } if (resps && resps->generic) { *response_data = &resps->generic->data[0]; *response_length = resps->generic->len; return true; } } return false; } #define UDC_NAME_LENGTH_MAX 128 struct usb_raw_init { __u8 driver_name[UDC_NAME_LENGTH_MAX]; __u8 device_name[UDC_NAME_LENGTH_MAX]; __u8 speed; }; enum usb_raw_event_type { USB_RAW_EVENT_INVALID = 0, USB_RAW_EVENT_CONNECT = 1, USB_RAW_EVENT_CONTROL = 2, }; struct usb_raw_event { __u32 type; __u32 length; __u8 data[0]; }; struct usb_raw_ep_io { __u16 ep; __u16 flags; __u32 length; __u8 data[0]; }; #define USB_RAW_EPS_NUM_MAX 30 #define USB_RAW_EP_NAME_MAX 16 #define USB_RAW_EP_ADDR_ANY 0xff struct usb_raw_ep_caps { __u32 type_control : 1; __u32 type_iso : 1; __u32 type_bulk : 1; __u32 type_int : 1; __u32 dir_in : 1; __u32 dir_out : 1; }; struct usb_raw_ep_limits { __u16 maxpacket_limit; __u16 max_streams; __u32 reserved; }; struct usb_raw_ep_info { __u8 name[USB_RAW_EP_NAME_MAX]; __u32 addr; struct usb_raw_ep_caps caps; struct usb_raw_ep_limits limits; }; struct usb_raw_eps_info { struct usb_raw_ep_info eps[USB_RAW_EPS_NUM_MAX]; }; #define USB_RAW_IOCTL_INIT _IOW('U', 0, struct usb_raw_init) #define USB_RAW_IOCTL_RUN _IO('U', 1) #define USB_RAW_IOCTL_EVENT_FETCH _IOR('U', 2, struct usb_raw_event) #define USB_RAW_IOCTL_EP0_WRITE _IOW('U', 3, struct usb_raw_ep_io) #define USB_RAW_IOCTL_EP0_READ _IOWR('U', 4, struct usb_raw_ep_io) #define USB_RAW_IOCTL_EP_ENABLE _IOW('U', 5, struct usb_endpoint_descriptor) #define USB_RAW_IOCTL_EP_DISABLE _IOW('U', 6, __u32) #define USB_RAW_IOCTL_EP_WRITE _IOW('U', 7, struct usb_raw_ep_io) #define USB_RAW_IOCTL_EP_READ _IOWR('U', 8, struct usb_raw_ep_io) #define USB_RAW_IOCTL_CONFIGURE _IO('U', 9) #define USB_RAW_IOCTL_VBUS_DRAW _IOW('U', 10, __u32) #define USB_RAW_IOCTL_EPS_INFO _IOR('U', 11, struct usb_raw_eps_info) #define USB_RAW_IOCTL_EP0_STALL _IO('U', 12) #define USB_RAW_IOCTL_EP_SET_HALT _IOW('U', 13, __u32) #define USB_RAW_IOCTL_EP_CLEAR_HALT _IOW('U', 14, __u32) #define USB_RAW_IOCTL_EP_SET_WEDGE _IOW('U', 15, __u32) static int usb_raw_open() { return open("/dev/raw-gadget", O_RDWR); } static int usb_raw_init(int fd, uint32_t speed, const char* driver, const char* device) { struct usb_raw_init arg; strncpy((char*)&arg.driver_name[0], driver, sizeof(arg.driver_name)); strncpy((char*)&arg.device_name[0], device, sizeof(arg.device_name)); arg.speed = speed; return ioctl(fd, USB_RAW_IOCTL_INIT, &arg); } static int usb_raw_run(int fd) { return ioctl(fd, USB_RAW_IOCTL_RUN, 0); } static int usb_raw_ep_write(int fd, struct usb_raw_ep_io* io) { return ioctl(fd, USB_RAW_IOCTL_EP_WRITE, io); } static int usb_raw_ep_read(int fd, struct usb_raw_ep_io* io) { return ioctl(fd, USB_RAW_IOCTL_EP_READ, io); } static int usb_raw_configure(int fd) { return ioctl(fd, USB_RAW_IOCTL_CONFIGURE, 0); } static int usb_raw_vbus_draw(int fd, uint32_t power) { return ioctl(fd, USB_RAW_IOCTL_VBUS_DRAW, power); } static int usb_raw_ep0_write(int fd, struct usb_raw_ep_io* io) { return ioctl(fd, USB_RAW_IOCTL_EP0_WRITE, io); } static int usb_raw_ep0_read(int fd, struct usb_raw_ep_io* io) { return ioctl(fd, USB_RAW_IOCTL_EP0_READ, io); } static int usb_raw_event_fetch(int fd, struct usb_raw_event* event) { return ioctl(fd, USB_RAW_IOCTL_EVENT_FETCH, event); } static int usb_raw_ep_enable(int fd, struct usb_endpoint_descriptor* desc) { return ioctl(fd, USB_RAW_IOCTL_EP_ENABLE, desc); } static int usb_raw_ep_disable(int fd, int ep) { return ioctl(fd, USB_RAW_IOCTL_EP_DISABLE, ep); } static int usb_raw_ep0_stall(int fd) { return ioctl(fd, USB_RAW_IOCTL_EP0_STALL, 0); } static int lookup_interface(int fd, uint8_t bInterfaceNumber, uint8_t bAlternateSetting) { struct usb_device_index* index = lookup_usb_index(fd); if (!index) return -1; for (int i = 0; i < index->ifaces_num; i++) { if (index->ifaces[i].bInterfaceNumber == bInterfaceNumber && index->ifaces[i].bAlternateSetting == bAlternateSetting) return i; } return -1; } static int lookup_endpoint(int fd, uint8_t bEndpointAddress) { struct usb_device_index* index = lookup_usb_index(fd); if (!index) return -1; if (index->iface_cur < 0) return -1; for (int ep = 0; ep < index->ifaces[index->iface_cur].eps_num; ep++) if (index->ifaces[index->iface_cur].eps[ep].desc.bEndpointAddress == bEndpointAddress) return index->ifaces[index->iface_cur].eps[ep].handle; return -1; } #define USB_MAX_PACKET_SIZE 4096 struct usb_raw_control_event { struct usb_raw_event inner; struct usb_ctrlrequest ctrl; char data[USB_MAX_PACKET_SIZE]; }; struct usb_raw_ep_io_data { struct usb_raw_ep_io inner; char data[USB_MAX_PACKET_SIZE]; }; static void set_interface(int fd, int n) { struct usb_device_index* index = lookup_usb_index(fd); if (!index) return; if (index->iface_cur >= 0 && index->iface_cur < index->ifaces_num) { for (int ep = 0; ep < index->ifaces[index->iface_cur].eps_num; ep++) { int rv = usb_raw_ep_disable(fd, index->ifaces[index->iface_cur].eps[ep].handle); if (rv < 0) { } else { } } } if (n >= 0 && n < index->ifaces_num) { for (int ep = 0; ep < index->ifaces[n].eps_num; ep++) { int rv = usb_raw_ep_enable(fd, &index->ifaces[n].eps[ep].desc); if (rv < 0) { } else { index->ifaces[n].eps[ep].handle = rv; } } index->iface_cur = n; } } static int configure_device(int fd) { struct usb_device_index* index = lookup_usb_index(fd); if (!index) return -1; int rv = usb_raw_vbus_draw(fd, index->bMaxPower); if (rv < 0) { return rv; } rv = usb_raw_configure(fd); if (rv < 0) { return rv; } set_interface(fd, 0); return 0; } static volatile long syz_usb_connect_impl(uint64_t speed, uint64_t dev_len, const char* dev, const struct vusb_connect_descriptors* descs, lookup_connect_out_response_t lookup_connect_response_out) { if (!dev) { return -1; } int fd = usb_raw_open(); if (fd < 0) { return fd; } if (fd >= MAX_FDS) { close(fd); return -1; } struct usb_device_index* index = add_usb_index(fd, dev, dev_len); if (!index) { return -1; } char device[32]; sprintf(&device[0], "dummy_udc.%llu", procid); int rv = usb_raw_init(fd, speed, "dummy_udc", &device[0]); if (rv < 0) { return rv; } rv = usb_raw_run(fd); if (rv < 0) { return rv; } bool done = false; while (!done) { struct usb_raw_control_event event; event.inner.type = 0; event.inner.length = sizeof(event.ctrl); rv = usb_raw_event_fetch(fd, (struct usb_raw_event*)&event); if (rv < 0) { return rv; } if (event.inner.type != USB_RAW_EVENT_CONTROL) continue; char* response_data = NULL; uint32_t response_length = 0; struct usb_qualifier_descriptor qual; if (event.ctrl.bRequestType & USB_DIR_IN) { if (!lookup_connect_response_in(fd, descs, &event.ctrl, &qual, &response_data, &response_length)) { usb_raw_ep0_stall(fd); continue; } } else { if (!lookup_connect_response_out(fd, descs, &event.ctrl, &done)) { usb_raw_ep0_stall(fd); continue; } response_data = NULL; response_length = event.ctrl.wLength; } if ((event.ctrl.bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD && event.ctrl.bRequest == USB_REQ_SET_CONFIGURATION) { rv = configure_device(fd); if (rv < 0) { return rv; } } struct usb_raw_ep_io_data response; response.inner.ep = 0; response.inner.flags = 0; if (response_length > sizeof(response.data)) response_length = 0; if (event.ctrl.wLength < response_length) response_length = event.ctrl.wLength; response.inner.length = response_length; if (response_data) memcpy(&response.data[0], response_data, response_length); else memset(&response.data[0], 0, response_length); if (event.ctrl.bRequestType & USB_DIR_IN) { rv = usb_raw_ep0_write(fd, (struct usb_raw_ep_io*)&response); } else { rv = usb_raw_ep0_read(fd, (struct usb_raw_ep_io*)&response); } if (rv < 0) { return rv; } } sleep_ms(200); return fd; } static volatile long syz_usb_connect(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { uint64_t speed = a0; uint64_t dev_len = a1; const char* dev = (const char*)a2; const struct vusb_connect_descriptors* descs = (const struct vusb_connect_descriptors*)a3; return syz_usb_connect_impl(speed, dev_len, dev, descs, &lookup_connect_response_out_generic); } static volatile long syz_usb_connect_ath9k(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { uint64_t speed = a0; uint64_t dev_len = a1; const char* dev = (const char*)a2; const struct vusb_connect_descriptors* descs = (const struct vusb_connect_descriptors*)a3; return syz_usb_connect_impl(speed, dev_len, dev, descs, &lookup_connect_response_out_ath9k); } static volatile long syz_usb_control_io(volatile long a0, volatile long a1, volatile long a2) { int fd = a0; const struct vusb_descriptors* descs = (const struct vusb_descriptors*)a1; const struct vusb_responses* resps = (const struct vusb_responses*)a2; struct usb_raw_control_event event; event.inner.type = 0; event.inner.length = USB_MAX_PACKET_SIZE; int rv = usb_raw_event_fetch(fd, (struct usb_raw_event*)&event); if (rv < 0) { return rv; } if (event.inner.type != USB_RAW_EVENT_CONTROL) { return -1; } char* response_data = NULL; uint32_t response_length = 0; if ((event.ctrl.bRequestType & USB_DIR_IN) && event.ctrl.wLength) { if (!lookup_control_response(descs, resps, &event.ctrl, &response_data, &response_length)) { usb_raw_ep0_stall(fd); return -1; } } else { if ((event.ctrl.bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD || event.ctrl.bRequest == USB_REQ_SET_INTERFACE) { int iface_num = event.ctrl.wIndex; int alt_set = event.ctrl.wValue; int iface_index = lookup_interface(fd, iface_num, alt_set); if (iface_index < 0) { } else { set_interface(fd, iface_index); } } response_length = event.ctrl.wLength; } struct usb_raw_ep_io_data response; response.inner.ep = 0; response.inner.flags = 0; if (response_length > sizeof(response.data)) response_length = 0; if (event.ctrl.wLength < response_length) response_length = event.ctrl.wLength; if ((event.ctrl.bRequestType & USB_DIR_IN) && !event.ctrl.wLength) { response_length = USB_MAX_PACKET_SIZE; } response.inner.length = response_length; if (response_data) memcpy(&response.data[0], response_data, response_length); else memset(&response.data[0], 0, response_length); if ((event.ctrl.bRequestType & USB_DIR_IN) && event.ctrl.wLength) { rv = usb_raw_ep0_write(fd, (struct usb_raw_ep_io*)&response); } else { rv = usb_raw_ep0_read(fd, (struct usb_raw_ep_io*)&response); } if (rv < 0) { return rv; } sleep_ms(200); return 0; } static volatile long syz_usb_ep_write(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { int fd = a0; uint8_t ep = a1; uint32_t len = a2; char* data = (char*)a3; int ep_handle = lookup_endpoint(fd, ep); if (ep_handle < 0) { return -1; } struct usb_raw_ep_io_data io_data; io_data.inner.ep = ep_handle; io_data.inner.flags = 0; if (len > sizeof(io_data.data)) len = sizeof(io_data.data); io_data.inner.length = len; memcpy(&io_data.data[0], data, len); int rv = usb_raw_ep_write(fd, (struct usb_raw_ep_io*)&io_data); if (rv < 0) { return rv; } sleep_ms(200); return 0; } static volatile long syz_usb_ep_read(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { int fd = a0; uint8_t ep = a1; uint32_t len = a2; char* data = (char*)a3; int ep_handle = lookup_endpoint(fd, ep); if (ep_handle < 0) { return -1; } struct usb_raw_ep_io_data io_data; io_data.inner.ep = ep_handle; io_data.inner.flags = 0; if (len > sizeof(io_data.data)) len = sizeof(io_data.data); io_data.inner.length = len; int rv = usb_raw_ep_read(fd, (struct usb_raw_ep_io*)&io_data); if (rv < 0) { return rv; } memcpy(&data[0], &io_data.data[0], io_data.inner.length); sleep_ms(200); return 0; } static volatile long syz_usb_disconnect(volatile long a0) { int fd = a0; int rv = close(fd); sleep_ms(200); return rv; } static long syz_open_dev(volatile long a0, volatile long a1, volatile long a2) { if (a0 == 0xc || a0 == 0xb) { char buf[128]; sprintf(buf, "/dev/%s/%d:%d", a0 == 0xc ? "char" : "block", (uint8_t)a1, (uint8_t)a2); return open(buf, O_RDWR, 0); } else { unsigned long nb = a1; char buf[1024]; char* hash; strncpy(buf, (char*)a0, sizeof(buf) - 1); buf[sizeof(buf) - 1] = 0; while ((hash = strchr(buf, '#'))) { *hash = '0' + (char)(nb % 10); nb /= 10; } return open(buf, a2 & ~O_CREAT, 0); } } static long syz_open_procfs(volatile long a0, volatile long a1) { char buf[128]; memset(buf, 0, sizeof(buf)); if (a0 == 0) { snprintf(buf, sizeof(buf), "/proc/self/%s", (char*)a1); } else if (a0 == -1) { snprintf(buf, sizeof(buf), "/proc/thread-self/%s", (char*)a1); } else { snprintf(buf, sizeof(buf), "/proc/self/task/%d/%s", (int)a0, (char*)a1); } int fd = open(buf, O_RDWR); if (fd == -1) fd = open(buf, O_RDONLY); return fd; } static long syz_open_pts(volatile long a0, volatile long a1) { int ptyno = 0; if (ioctl(a0, TIOCGPTN, &ptyno)) return -1; char buf[128]; sprintf(buf, "/dev/pts/%d", ptyno); return open(buf, a1, 0); } static long syz_init_net_socket(volatile long domain, volatile long type, volatile long proto) { int netns = open("/proc/self/ns/net", O_RDONLY); if (netns == -1) return netns; if (setns(kInitNetNsFd, 0)) return -1; int sock = syscall(__NR_socket, domain, type, proto); int err = errno; if (setns(netns, 0)) { exit(1); } close(netns); errno = err; return sock; } static long syz_socket_connect_nvme_tcp() { struct sockaddr_in nvme_local_address; int netns = open("/proc/self/ns/net", O_RDONLY); if (netns == -1) return netns; if (setns(kInitNetNsFd, 0)) return -1; int sock = syscall(__NR_socket, AF_INET, SOCK_STREAM, 0x0); int err = errno; if (setns(netns, 0)) { exit(1); } close(netns); errno = err; nvme_local_address.sin_family = AF_INET; nvme_local_address.sin_port = htobe16(4420); nvme_local_address.sin_addr.s_addr = htobe32(0x7f000001); err = syscall(__NR_connect, sock, &nvme_local_address, sizeof(nvme_local_address)); if (err != 0) { close(sock); return -1; } return sock; } static long syz_genetlink_get_family_id(volatile long name, volatile long sock_arg) { int fd = sock_arg; if (fd < 0) { fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC); if (fd == -1) { return -1; } } struct nlmsg nlmsg_tmp; int ret = netlink_query_family_id(&nlmsg_tmp, fd, (char*)name, false); if ((int)sock_arg < 0) close(fd); if (ret < 0) { return -1; } return ret; } //% This code is derived from puff.{c,h}, found in the zlib development. The //% original files come with the following copyright notice: //% Copyright (C) 2002-2013 Mark Adler, all rights reserved //% version 2.3, 21 Jan 2013 //% This software is provided 'as-is', without any express or implied //% warranty. In no event will the author be held liable for any damages //% arising from the use of this software. //% Permission is granted to anyone to use this software for any purpose, //% including commercial applications, and to alter it and redistribute it //% freely, subject to the following restrictions: //% 1. The origin of this software must not be misrepresented; you must not //% claim that you wrote the original software. If you use this software //% in a product, an acknowledgment in the product documentation would be //% appreciated but is not required. //% 2. Altered source versions must be plainly marked as such, and must not be //% misrepresented as being the original software. //% 3. This notice may not be removed or altered from any source distribution. //% Mark Adler madler@alumni.caltech.edu //% BEGIN CODE DERIVED FROM puff.{c,h} #define MAXBITS 15 #define MAXLCODES 286 #define MAXDCODES 30 #define MAXCODES (MAXLCODES + MAXDCODES) #define FIXLCODES 288 struct puff_state { unsigned char* out; unsigned long outlen; unsigned long outcnt; const unsigned char* in; unsigned long inlen; unsigned long incnt; int bitbuf; int bitcnt; jmp_buf env; }; static int puff_bits(struct puff_state* s, int need) { long val = s->bitbuf; while (s->bitcnt < need) { if (s->incnt == s->inlen) longjmp(s->env, 1); val |= (long)(s->in[s->incnt++]) << s->bitcnt; s->bitcnt += 8; } s->bitbuf = (int)(val >> need); s->bitcnt -= need; return (int)(val & ((1L << need) - 1)); } static int puff_stored(struct puff_state* s) { s->bitbuf = 0; s->bitcnt = 0; if (s->incnt + 4 > s->inlen) return 2; unsigned len = s->in[s->incnt++]; len |= s->in[s->incnt++] << 8; if (s->in[s->incnt++] != (~len & 0xff) || s->in[s->incnt++] != ((~len >> 8) & 0xff)) return -2; if (s->incnt + len > s->inlen) return 2; if (s->outcnt + len > s->outlen) return 1; for (; len--; s->outcnt++, s->incnt++) { if (s->in[s->incnt]) s->out[s->outcnt] = s->in[s->incnt]; } return 0; } struct puff_huffman { short* count; short* symbol; }; static int puff_decode(struct puff_state* s, const struct puff_huffman* h) { int first = 0; int index = 0; int bitbuf = s->bitbuf; int left = s->bitcnt; int code = first = index = 0; int len = 1; short* next = h->count + 1; while (1) { while (left--) { code |= bitbuf & 1; bitbuf >>= 1; int count = *next++; if (code - count < first) { s->bitbuf = bitbuf; s->bitcnt = (s->bitcnt - len) & 7; return h->symbol[index + (code - first)]; } index += count; first += count; first <<= 1; code <<= 1; len++; } left = (MAXBITS + 1) - len; if (left == 0) break; if (s->incnt == s->inlen) longjmp(s->env, 1); bitbuf = s->in[s->incnt++]; if (left > 8) left = 8; } return -10; } static int puff_construct(struct puff_huffman* h, const short* length, int n) { int len; for (len = 0; len <= MAXBITS; len++) h->count[len] = 0; int symbol; for (symbol = 0; symbol < n; symbol++) (h->count[length[symbol]])++; if (h->count[0] == n) return 0; int left = 1; for (len = 1; len <= MAXBITS; len++) { left <<= 1; left -= h->count[len]; if (left < 0) return left; } short offs[MAXBITS + 1]; offs[1] = 0; for (len = 1; len < MAXBITS; len++) offs[len + 1] = offs[len] + h->count[len]; for (symbol = 0; symbol < n; symbol++) if (length[symbol] != 0) h->symbol[offs[length[symbol]]++] = symbol; return left; } static int puff_codes(struct puff_state* s, const struct puff_huffman* lencode, const struct puff_huffman* distcode) { static const short lens[29] = { 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31, 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258}; static const short lext[29] = { 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0}; static const short dists[30] = { 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193, 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145, 8193, 12289, 16385, 24577}; static const short dext[30] = { 0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13}; int symbol; do { symbol = puff_decode(s, lencode); if (symbol < 0) return symbol; if (symbol < 256) { if (s->outcnt == s->outlen) return 1; if (symbol) s->out[s->outcnt] = symbol; s->outcnt++; } else if (symbol > 256) { symbol -= 257; if (symbol >= 29) return -10; int len = lens[symbol] + puff_bits(s, lext[symbol]); symbol = puff_decode(s, distcode); if (symbol < 0) return symbol; unsigned dist = dists[symbol] + puff_bits(s, dext[symbol]); if (dist > s->outcnt) return -11; if (s->outcnt + len > s->outlen) return 1; while (len--) { if (dist <= s->outcnt && s->out[s->outcnt - dist]) s->out[s->outcnt] = s->out[s->outcnt - dist]; s->outcnt++; } } } while (symbol != 256); return 0; } static int puff_fixed(struct puff_state* s) { static int virgin = 1; static short lencnt[MAXBITS + 1], lensym[FIXLCODES]; static short distcnt[MAXBITS + 1], distsym[MAXDCODES]; static struct puff_huffman lencode, distcode; if (virgin) { lencode.count = lencnt; lencode.symbol = lensym; distcode.count = distcnt; distcode.symbol = distsym; short lengths[FIXLCODES]; int symbol; for (symbol = 0; symbol < 144; symbol++) lengths[symbol] = 8; for (; symbol < 256; symbol++) lengths[symbol] = 9; for (; symbol < 280; symbol++) lengths[symbol] = 7; for (; symbol < FIXLCODES; symbol++) lengths[symbol] = 8; puff_construct(&lencode, lengths, FIXLCODES); for (symbol = 0; symbol < MAXDCODES; symbol++) lengths[symbol] = 5; puff_construct(&distcode, lengths, MAXDCODES); virgin = 0; } return puff_codes(s, &lencode, &distcode); } static int puff_dynamic(struct puff_state* s) { static const short order[19] = {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15}; int nlen = puff_bits(s, 5) + 257; int ndist = puff_bits(s, 5) + 1; int ncode = puff_bits(s, 4) + 4; if (nlen > MAXLCODES || ndist > MAXDCODES) return -3; short lengths[MAXCODES]; int index; for (index = 0; index < ncode; index++) lengths[order[index]] = puff_bits(s, 3); for (; index < 19; index++) lengths[order[index]] = 0; short lencnt[MAXBITS + 1], lensym[MAXLCODES]; struct puff_huffman lencode = {lencnt, lensym}; int err = puff_construct(&lencode, lengths, 19); if (err != 0) return -4; index = 0; while (index < nlen + ndist) { int symbol; int len; symbol = puff_decode(s, &lencode); if (symbol < 0) return symbol; if (symbol < 16) lengths[index++] = symbol; else { len = 0; if (symbol == 16) { if (index == 0) return -5; len = lengths[index - 1]; symbol = 3 + puff_bits(s, 2); } else if (symbol == 17) symbol = 3 + puff_bits(s, 3); else symbol = 11 + puff_bits(s, 7); if (index + symbol > nlen + ndist) return -6; while (symbol--) lengths[index++] = len; } } if (lengths[256] == 0) return -9; err = puff_construct(&lencode, lengths, nlen); if (err && (err < 0 || nlen != lencode.count[0] + lencode.count[1])) return -7; short distcnt[MAXBITS + 1], distsym[MAXDCODES]; struct puff_huffman distcode = {distcnt, distsym}; err = puff_construct(&distcode, lengths + nlen, ndist); if (err && (err < 0 || ndist != distcode.count[0] + distcode.count[1])) return -8; return puff_codes(s, &lencode, &distcode); } static int puff( unsigned char* dest, unsigned long* destlen, const unsigned char* source, unsigned long sourcelen) { struct puff_state s = { .out = dest, .outlen = *destlen, .outcnt = 0, .in = source, .inlen = sourcelen, .incnt = 0, .bitbuf = 0, .bitcnt = 0, }; int err; if (setjmp(s.env) != 0) err = 2; else { int last; do { last = puff_bits(&s, 1); int type = puff_bits(&s, 2); err = type == 0 ? puff_stored(&s) : (type == 1 ? puff_fixed(&s) : (type == 2 ? puff_dynamic(&s) : -1)); if (err != 0) break; } while (!last); } *destlen = s.outcnt; return err; } //% END CODE DERIVED FROM puff.{c,h} #define ZLIB_HEADER_WIDTH 2 static int puff_zlib_to_file(const unsigned char* source, unsigned long sourcelen, int dest_fd) { if (sourcelen < ZLIB_HEADER_WIDTH) return 0; source += ZLIB_HEADER_WIDTH; sourcelen -= ZLIB_HEADER_WIDTH; const unsigned long max_destlen = 132 << 20; void* ret = mmap(0, max_destlen, PROT_WRITE | PROT_READ, MAP_PRIVATE | MAP_ANON, -1, 0); if (ret == MAP_FAILED) return -1; unsigned char* dest = (unsigned char*)ret; unsigned long destlen = max_destlen; int err = puff(dest, &destlen, source, sourcelen); if (err) { munmap(dest, max_destlen); errno = -err; return -1; } if (write(dest_fd, dest, destlen) != (ssize_t)destlen) { munmap(dest, max_destlen); return -1; } return munmap(dest, max_destlen); } static int setup_loop_device(unsigned char* data, unsigned long size, const char* loopname, int* loopfd_p) { int err = 0, loopfd = -1; int memfd = syscall(__NR_memfd_create, "syzkaller", 0); if (memfd == -1) { err = errno; goto error; } if (puff_zlib_to_file(data, size, memfd)) { err = errno; goto error_close_memfd; } loopfd = open(loopname, O_RDWR); if (loopfd == -1) { err = errno; goto error_close_memfd; } if (ioctl(loopfd, LOOP_SET_FD, memfd)) { if (errno != EBUSY) { err = errno; goto error_close_loop; } ioctl(loopfd, LOOP_CLR_FD, 0); usleep(1000); if (ioctl(loopfd, LOOP_SET_FD, memfd)) { err = errno; goto error_close_loop; } } close(memfd); *loopfd_p = loopfd; return 0; error_close_loop: close(loopfd); error_close_memfd: close(memfd); error: errno = err; return -1; } static void reset_loop_device(const char* loopname) { int loopfd = open(loopname, O_RDWR); if (loopfd == -1) { return; } if (ioctl(loopfd, LOOP_CLR_FD, 0)) { } close(loopfd); } static long syz_mount_image( volatile long fsarg, volatile long dir, volatile long flags, volatile long optsarg, volatile long change_dir, volatile unsigned long size, volatile long image) { unsigned char* data = (unsigned char*)image; int res = -1, err = 0, need_loop_device = !!size; char* mount_opts = (char*)optsarg; char* target = (char*)dir; char* fs = (char*)fsarg; char* source = NULL; char loopname[64]; if (need_loop_device) { int loopfd; memset(loopname, 0, sizeof(loopname)); snprintf(loopname, sizeof(loopname), "/dev/loop%llu", procid); if (setup_loop_device(data, size, loopname, &loopfd) == -1) return -1; close(loopfd); source = loopname; } mkdir(target, 0777); char opts[256]; memset(opts, 0, sizeof(opts)); if (strlen(mount_opts) > (sizeof(opts) - 32)) { } strncpy(opts, mount_opts, sizeof(opts) - 32); if (strcmp(fs, "iso9660") == 0) { flags |= MS_RDONLY; } else if (strncmp(fs, "ext", 3) == 0) { bool has_remount_ro = false; char* remount_ro_start = strstr(opts, "errors=remount-ro"); if (remount_ro_start != NULL) { char after = *(remount_ro_start + strlen("errors=remount-ro")); char before = remount_ro_start == opts ? '\0' : *(remount_ro_start - 1); has_remount_ro = ((before == '\0' || before == ',') && (after == '\0' || after == ',')); } if (strstr(opts, "errors=panic") || !has_remount_ro) strcat(opts, ",errors=continue"); } else if (strcmp(fs, "xfs") == 0) { strcat(opts, ",nouuid"); } else if (strncmp(fs, "gfs2", 4) == 0 && (strstr(opts, "errors=panic") || strstr(opts, "debug"))) { strcat(opts, ",errors=withdraw"); } res = mount(source, target, fs, flags, opts); if (res == -1) { err = errno; goto error_clear_loop; } res = open(target, O_RDONLY | O_DIRECTORY); if (res == -1) { err = errno; goto error_clear_loop; } if (change_dir) { res = chdir(target); if (res == -1) { err = errno; } } error_clear_loop: if (need_loop_device) reset_loop_device(loopname); errno = err; return res; } #define noinline __attribute__((noinline)) #define __no_stack_protector #define __addrspace_guest #define __optnone #define GUEST_CODE __attribute__((section("guest"))) __no_stack_protector __addrspace_guest extern char *__start_guest, *__stop_guest; #define X86_ADDR_TEXT 0x0000 #define X86_ADDR_PD_IOAPIC 0x0000 #define X86_ADDR_GDT 0x1000 #define X86_ADDR_LDT 0x1800 #define X86_ADDR_PML4 0x2000 #define X86_ADDR_PDP 0x3000 #define X86_ADDR_PD 0x4000 #define X86_ADDR_STACK0 0x0f80 #define X86_ADDR_VAR_HLT 0x2800 #define X86_ADDR_VAR_SYSRET 0x2808 #define X86_ADDR_VAR_SYSEXIT 0x2810 #define X86_ADDR_VAR_IDT 0x3800 #define X86_ADDR_VAR_TSS64 0x3a00 #define X86_ADDR_VAR_TSS64_CPL3 0x3c00 #define X86_ADDR_VAR_TSS16 0x3d00 #define X86_ADDR_VAR_TSS16_2 0x3e00 #define X86_ADDR_VAR_TSS16_CPL3 0x3f00 #define X86_ADDR_VAR_TSS32 0x4800 #define X86_ADDR_VAR_TSS32_2 0x4a00 #define X86_ADDR_VAR_TSS32_CPL3 0x4c00 #define X86_ADDR_VAR_TSS32_VM86 0x4e00 #define X86_ADDR_VAR_VMXON_PTR 0x5f00 #define X86_ADDR_VAR_VMCS_PTR 0x5f08 #define X86_ADDR_VAR_VMEXIT_PTR 0x5f10 #define X86_ADDR_VAR_VMWRITE_FLD 0x5f18 #define X86_ADDR_VAR_VMWRITE_VAL 0x5f20 #define X86_ADDR_VAR_VMXON 0x6000 #define X86_ADDR_VAR_VMCS 0x7000 #define X86_ADDR_VAR_VMEXIT_CODE 0x9000 #define X86_ADDR_VAR_USER_CODE 0x9100 #define X86_ADDR_VAR_USER_CODE2 0x9120 #define X86_SYZOS_ADDR_ZERO 0x0 #define X86_SYZOS_ADDR_GDT 0x1000 #define X86_SYZOS_ADDR_PML4 0x2000 #define X86_SYZOS_ADDR_PDP 0x3000 #define X86_SYZOS_ADDR_PT_POOL 0x5000 #define X86_SYZOS_ADDR_VAR_IDT 0x25000 #define X86_SYZOS_ADDR_VAR_TSS 0x26000 #define X86_SYZOS_ADDR_SMRAM 0x30000 #define X86_SYZOS_ADDR_EXIT 0x40000 #define X86_SYZOS_ADDR_UEXIT (X86_SYZOS_ADDR_EXIT + 256) #define X86_SYZOS_ADDR_DIRTY_PAGES 0x41000 #define X86_SYZOS_ADDR_USER_CODE 0x50000 #define SYZOS_ADDR_EXECUTOR_CODE 0x54000 #define X86_SYZOS_ADDR_SCRATCH_CODE 0x58000 #define X86_SYZOS_ADDR_STACK_BOTTOM 0x60000 #define X86_SYZOS_ADDR_STACK0 0x60f80 #define X86_SYZOS_PER_VCPU_REGIONS_BASE 0x70000 #define X86_SYZOS_L1_VCPU_REGION_SIZE 0x40000 #define X86_SYZOS_L1_VCPU_OFFSET_VM_ARCH_SPECIFIC 0x0000 #define X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA 0x1000 #define X86_SYZOS_L2_VM_REGION_SIZE 0x8000 #define X86_SYZOS_L2_VM_OFFSET_VMCS_VMCB 0x0000 #define X86_SYZOS_L2_VM_OFFSET_VM_STACK 0x1000 #define X86_SYZOS_L2_VM_OFFSET_VM_CODE 0x2000 #define X86_SYZOS_L2_VM_OFFSET_VM_PGTABLE 0x3000 #define X86_SYZOS_L2_VM_OFFSET_MSR_BITMAP 0x7000 #define X86_SYZOS_ADDR_UNUSED 0x200000 #define X86_SYZOS_ADDR_IOAPIC 0xfec00000 #define X86_SYZOS_ADDR_VMCS_VMCB(cpu,vm) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA + (vm) * X86_SYZOS_L2_VM_REGION_SIZE + X86_SYZOS_L2_VM_OFFSET_VMCS_VMCB) #define X86_SYZOS_ADDR_VM_CODE(cpu,vm) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA + (vm) * X86_SYZOS_L2_VM_REGION_SIZE + X86_SYZOS_L2_VM_OFFSET_VM_CODE) #define X86_SYZOS_ADDR_VM_STACK(cpu,vm) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA + (vm) * X86_SYZOS_L2_VM_REGION_SIZE + X86_SYZOS_L2_VM_OFFSET_VM_STACK) #define X86_SYZOS_ADDR_VM_PGTABLE(cpu,vm) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA + (vm) * X86_SYZOS_L2_VM_REGION_SIZE + X86_SYZOS_L2_VM_OFFSET_VM_PGTABLE) #define X86_SYZOS_ADDR_MSR_BITMAP(cpu,vm) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA + (vm) * X86_SYZOS_L2_VM_REGION_SIZE + X86_SYZOS_L2_VM_OFFSET_MSR_BITMAP) #define X86_SYZOS_ADDR_VM_ARCH_SPECIFIC(cpu) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_VM_ARCH_SPECIFIC) #define X86_SYZOS_SEL_CODE 0x8 #define X86_SYZOS_SEL_DATA 0x10 #define X86_SYZOS_SEL_TSS64 0x18 #define X86_CR0_PE 1ULL #define X86_CR0_MP (1ULL << 1) #define X86_CR0_EM (1ULL << 2) #define X86_CR0_TS (1ULL << 3) #define X86_CR0_ET (1ULL << 4) #define X86_CR0_NE (1ULL << 5) #define X86_CR0_WP (1ULL << 16) #define X86_CR0_AM (1ULL << 18) #define X86_CR0_NW (1ULL << 29) #define X86_CR0_CD (1ULL << 30) #define X86_CR0_PG (1ULL << 31) #define X86_CR4_VME 1ULL #define X86_CR4_PVI (1ULL << 1) #define X86_CR4_TSD (1ULL << 2) #define X86_CR4_DE (1ULL << 3) #define X86_CR4_PSE (1ULL << 4) #define X86_CR4_PAE (1ULL << 5) #define X86_CR4_MCE (1ULL << 6) #define X86_CR4_PGE (1ULL << 7) #define X86_CR4_PCE (1ULL << 8) #define X86_CR4_OSFXSR (1ULL << 8) #define X86_CR4_OSXMMEXCPT (1ULL << 10) #define X86_CR4_UMIP (1ULL << 11) #define X86_CR4_VMXE (1ULL << 13) #define X86_CR4_SMXE (1ULL << 14) #define X86_CR4_FSGSBASE (1ULL << 16) #define X86_CR4_PCIDE (1ULL << 17) #define X86_CR4_OSXSAVE (1ULL << 18) #define X86_CR4_SMEP (1ULL << 20) #define X86_CR4_SMAP (1ULL << 21) #define X86_CR4_PKE (1ULL << 22) #define X86_EFER_SCE 1ULL #define X86_EFER_LME (1ULL << 8) #define X86_EFER_LMA (1ULL << 10) #define X86_EFER_NXE (1ULL << 11) #define X86_EFER_SVME (1ULL << 12) #define X86_EFER_LMSLE (1ULL << 13) #define X86_EFER_FFXSR (1ULL << 14) #define X86_EFER_TCE (1ULL << 15) #define X86_PDE32_PRESENT 1UL #define X86_PDE32_RW (1UL << 1) #define X86_PDE32_USER (1UL << 2) #define X86_PDE32_PS (1UL << 7) #define X86_PDE64_PRESENT 1 #define X86_PDE64_RW (1ULL << 1) #define X86_PDE64_USER (1ULL << 2) #define X86_PDE64_ACCESSED (1ULL << 5) #define X86_PDE64_DIRTY (1ULL << 6) #define X86_PDE64_PS (1ULL << 7) #define X86_PDE64_G (1ULL << 8) #define EPT_MEMTYPE_WB (6ULL << 3) #define EPT_ACCESSED (1ULL << 8) #define EPT_DIRTY (1ULL << 9) #define X86_SEL_LDT (1 << 3) #define X86_SEL_CS16 (2 << 3) #define X86_SEL_DS16 (3 << 3) #define X86_SEL_CS16_CPL3 ((4 << 3) + 3) #define X86_SEL_DS16_CPL3 ((5 << 3) + 3) #define X86_SEL_CS32 (6 << 3) #define X86_SEL_DS32 (7 << 3) #define X86_SEL_CS32_CPL3 ((8 << 3) + 3) #define X86_SEL_DS32_CPL3 ((9 << 3) + 3) #define X86_SEL_CS64 (10 << 3) #define X86_SEL_DS64 (11 << 3) #define X86_SEL_CS64_CPL3 ((12 << 3) + 3) #define X86_SEL_DS64_CPL3 ((13 << 3) + 3) #define X86_SEL_CGATE16 (14 << 3) #define X86_SEL_TGATE16 (15 << 3) #define X86_SEL_CGATE32 (16 << 3) #define X86_SEL_TGATE32 (17 << 3) #define X86_SEL_CGATE64 (18 << 3) #define X86_SEL_CGATE64_HI (19 << 3) #define X86_SEL_TSS16 (20 << 3) #define X86_SEL_TSS16_2 (21 << 3) #define X86_SEL_TSS16_CPL3 ((22 << 3) + 3) #define X86_SEL_TSS32 (23 << 3) #define X86_SEL_TSS32_2 (24 << 3) #define X86_SEL_TSS32_CPL3 ((25 << 3) + 3) #define X86_SEL_TSS32_VM86 (26 << 3) #define X86_SEL_TSS64 (27 << 3) #define X86_SEL_TSS64_HI (28 << 3) #define X86_SEL_TSS64_CPL3 ((29 << 3) + 3) #define X86_SEL_TSS64_CPL3_HI (30 << 3) #define X86_MSR_IA32_FEATURE_CONTROL 0x3a #define X86_MSR_IA32_VMX_BASIC 0x480 #define X86_MSR_IA32_SMBASE 0x9e #define X86_MSR_IA32_SYSENTER_CS 0x174 #define X86_MSR_IA32_SYSENTER_ESP 0x175 #define X86_MSR_IA32_SYSENTER_EIP 0x176 #define X86_MSR_IA32_CR_PAT 0x277 #define X86_MSR_CORE_PERF_GLOBAL_CTRL 0x38f #define X86_MSR_IA32_VMX_TRUE_PINBASED_CTLS 0x48d #define X86_MSR_IA32_VMX_TRUE_PROCBASED_CTLS 0x48e #define X86_MSR_IA32_VMX_TRUE_EXIT_CTLS 0x48f #define X86_MSR_IA32_VMX_TRUE_ENTRY_CTLS 0x490 #define X86_MSR_IA32_EFER 0xc0000080 #define X86_MSR_IA32_STAR 0xC0000081 #define X86_MSR_IA32_LSTAR 0xC0000082 #define X86_MSR_FS_BASE 0xc0000100 #define X86_MSR_GS_BASE 0xc0000101 #define X86_MSR_VM_HSAVE_PA 0xc0010117 #define X86_MSR_IA32_VMX_PROCBASED_CTLS2 0x48B #define RFLAGS_1_BIT (1ULL << 1) #define CPU_BASED_HLT_EXITING (1U << 7) #define CPU_BASED_RDTSC_EXITING (1U << 12) #define AR_TSS_AVAILABLE 0x0089 #define SVM_ATTR_LDTR_UNUSABLE 0x0000 #define VMX_AR_TSS_BUSY 0x008b #define VMX_AR_TSS_AVAILABLE 0x0089 #define VMX_AR_LDTR_UNUSABLE 0x10000 #define VM_ENTRY_IA32E_MODE (1U << 9) #define SECONDARY_EXEC_ENABLE_EPT (1U << 1) #define SECONDARY_EXEC_ENABLE_RDTSCP (1U << 3) #define VM_EXIT_HOST_ADDR_SPACE_SIZE (1U << 9) #define CPU_BASED_ACTIVATE_SECONDARY_CONTROLS (1U << 31) #define VMX_ACCESS_RIGHTS_P (1 << 7) #define VMX_ACCESS_RIGHTS_S (1 << 4) #define VMX_ACCESS_RIGHTS_TYPE_A (1 << 0) #define VMX_ACCESS_RIGHTS_TYPE_RW (1 << 1) #define VMX_ACCESS_RIGHTS_TYPE_E (1 << 3) #define VMX_ACCESS_RIGHTS_G (1 << 15) #define VMX_ACCESS_RIGHTS_DB (1 << 14) #define VMX_ACCESS_RIGHTS_L (1 << 13) #define VMX_AR_64BIT_DATA_STACK (VMX_ACCESS_RIGHTS_P | VMX_ACCESS_RIGHTS_S | VMX_ACCESS_RIGHTS_TYPE_RW | VMX_ACCESS_RIGHTS_TYPE_A | VMX_ACCESS_RIGHTS_G | VMX_ACCESS_RIGHTS_DB) #define VMX_AR_64BIT_CODE (VMX_ACCESS_RIGHTS_P | VMX_ACCESS_RIGHTS_S | VMX_ACCESS_RIGHTS_TYPE_E | VMX_ACCESS_RIGHTS_TYPE_RW | VMX_ACCESS_RIGHTS_TYPE_A | VMX_ACCESS_RIGHTS_G | VMX_ACCESS_RIGHTS_L) #define VMCS_VIRTUAL_PROCESSOR_ID 0x00000000 #define VMCS_POSTED_INTR_NV 0x00000002 #define VMCS_MSR_BITMAP 0x00002004 #define VMCS_VMREAD_BITMAP 0x00002006 #define VMCS_VMWRITE_BITMAP 0x00002008 #define VMCS_EPT_POINTER 0x0000201a #define VMCS_LINK_POINTER 0x00002800 #define VMCS_PIN_BASED_VM_EXEC_CONTROL 0x00004000 #define VMCS_CPU_BASED_VM_EXEC_CONTROL 0x00004002 #define VMCS_EXCEPTION_BITMAP 0x00004004 #define VMCS_PAGE_FAULT_ERROR_CODE_MASK 0x00004006 #define VMCS_PAGE_FAULT_ERROR_CODE_MATCH 0x00004008 #define VMCS_CR3_TARGET_COUNT 0x0000400a #define VMCS_VM_EXIT_CONTROLS 0x0000400c #define VMCS_VM_EXIT_MSR_STORE_COUNT 0x0000400e #define VMCS_VM_EXIT_MSR_LOAD_COUNT 0x00004010 #define VMCS_VM_ENTRY_CONTROLS 0x00004012 #define VMCS_VM_ENTRY_MSR_LOAD_COUNT 0x00004014 #define VMCS_VM_ENTRY_INTR_INFO_FIELD 0x00004016 #define VMCS_TPR_THRESHOLD 0x0000401c #define VMCS_SECONDARY_VM_EXEC_CONTROL 0x0000401e #define VMCS_VM_INSTRUCTION_ERROR 0x00004400 #define VMCS_VM_EXIT_REASON 0x00004402 #define VMCS_VMX_PREEMPTION_TIMER_VALUE 0x0000482e #define VMCS_CR0_GUEST_HOST_MASK 0x00006000 #define VMCS_CR4_GUEST_HOST_MASK 0x00006002 #define VMCS_CR0_READ_SHADOW 0x00006004 #define VMCS_CR4_READ_SHADOW 0x00006006 #define VMCS_HOST_ES_SELECTOR 0x00000c00 #define VMCS_HOST_CS_SELECTOR 0x00000c02 #define VMCS_HOST_SS_SELECTOR 0x00000c04 #define VMCS_HOST_DS_SELECTOR 0x00000c06 #define VMCS_HOST_FS_SELECTOR 0x00000c08 #define VMCS_HOST_GS_SELECTOR 0x00000c0a #define VMCS_HOST_TR_SELECTOR 0x00000c0c #define VMCS_HOST_IA32_PAT 0x00002c00 #define VMCS_HOST_IA32_EFER 0x00002c02 #define VMCS_HOST_IA32_PERF_GLOBAL_CTRL 0x00002c04 #define VMCS_HOST_IA32_SYSENTER_CS 0x00004c00 #define VMCS_HOST_CR0 0x00006c00 #define VMCS_HOST_CR3 0x00006c02 #define VMCS_HOST_CR4 0x00006c04 #define VMCS_HOST_FS_BASE 0x00006c06 #define VMCS_HOST_GS_BASE 0x00006c08 #define VMCS_HOST_TR_BASE 0x00006c0a #define VMCS_HOST_GDTR_BASE 0x00006c0c #define VMCS_HOST_IDTR_BASE 0x00006c0e #define VMCS_HOST_IA32_SYSENTER_ESP 0x00006c10 #define VMCS_HOST_IA32_SYSENTER_EIP 0x00006c12 #define VMCS_HOST_RSP 0x00006c14 #define VMCS_HOST_RIP 0x00006c16 #define VMCS_GUEST_INTR_STATUS 0x00000810 #define VMCS_GUEST_PML_INDEX 0x00000812 #define VMCS_GUEST_IA32_DEBUGCTL 0x00002802 #define VMCS_GUEST_IA32_PAT 0x00002804 #define VMCS_GUEST_IA32_EFER 0x00002806 #define VMCS_GUEST_IA32_PERF_GLOBAL_CTRL 0x00002808 #define VMCS_GUEST_ES_SELECTOR 0x00000800 #define VMCS_GUEST_CS_SELECTOR 0x00000802 #define VMCS_GUEST_SS_SELECTOR 0x00000804 #define VMCS_GUEST_DS_SELECTOR 0x00000806 #define VMCS_GUEST_FS_SELECTOR 0x00000808 #define VMCS_GUEST_GS_SELECTOR 0x0000080a #define VMCS_GUEST_LDTR_SELECTOR 0x0000080c #define VMCS_GUEST_TR_SELECTOR 0x0000080e #define VMCS_GUEST_ES_LIMIT 0x00004800 #define VMCS_GUEST_CS_LIMIT 0x00004802 #define VMCS_GUEST_SS_LIMIT 0x00004804 #define VMCS_GUEST_DS_LIMIT 0x00004806 #define VMCS_GUEST_FS_LIMIT 0x00004808 #define VMCS_GUEST_GS_LIMIT 0x0000480a #define VMCS_GUEST_LDTR_LIMIT 0x0000480c #define VMCS_GUEST_TR_LIMIT 0x0000480e #define VMCS_GUEST_GDTR_LIMIT 0x00004810 #define VMCS_GUEST_IDTR_LIMIT 0x00004812 #define VMCS_GUEST_ES_ACCESS_RIGHTS 0x00004814 #define VMCS_GUEST_CS_ACCESS_RIGHTS 0x00004816 #define VMCS_GUEST_SS_ACCESS_RIGHTS 0x00004818 #define VMCS_GUEST_DS_ACCESS_RIGHTS 0x0000481a #define VMCS_GUEST_FS_ACCESS_RIGHTS 0x0000481c #define VMCS_GUEST_GS_ACCESS_RIGHTS 0x0000481e #define VMCS_GUEST_LDTR_ACCESS_RIGHTS 0x00004820 #define VMCS_GUEST_TR_ACCESS_RIGHTS 0x00004822 #define VMCS_GUEST_ACTIVITY_STATE 0x00004824 #define VMCS_GUEST_INTERRUPTIBILITY_INFO 0x00004826 #define VMCS_GUEST_SYSENTER_CS 0x0000482a #define VMCS_GUEST_CR0 0x00006800 #define VMCS_GUEST_CR3 0x00006802 #define VMCS_GUEST_CR4 0x00006804 #define VMCS_GUEST_ES_BASE 0x00006806 #define VMCS_GUEST_CS_BASE 0x00006808 #define VMCS_GUEST_SS_BASE 0x0000680a #define VMCS_GUEST_DS_BASE 0x0000680c #define VMCS_GUEST_FS_BASE 0x0000680e #define VMCS_GUEST_GS_BASE 0x00006810 #define VMCS_GUEST_LDTR_BASE 0x00006812 #define VMCS_GUEST_TR_BASE 0x00006814 #define VMCS_GUEST_GDTR_BASE 0x00006816 #define VMCS_GUEST_IDTR_BASE 0x00006818 #define VMCS_GUEST_DR7 0x0000681a #define VMCS_GUEST_RSP 0x0000681c #define VMCS_GUEST_RIP 0x0000681e #define VMCS_GUEST_RFLAGS 0x00006820 #define VMCS_GUEST_PENDING_DBG_EXCEPTIONS 0x00006822 #define VMCS_GUEST_SYSENTER_ESP 0x00006824 #define VMCS_GUEST_SYSENTER_EIP 0x00006826 #define VMCB_CTRL_INTERCEPT_VEC3 0x0c #define VMCB_CTRL_INTERCEPT_VEC3_ALL (0xffffffff) #define VMCB_CTRL_INTERCEPT_VEC4 0x10 #define VMCB_CTRL_INTERCEPT_VEC4_ALL (0x3ff) #define VMCB_CTRL_ASID 0x058 #define VMCB_EXIT_CODE 0x070 #define VMCB_CTRL_NP_ENABLE 0x090 #define VMCB_CTRL_NPT_ENABLE_BIT 0 #define VMCB_CTRL_N_CR3 0x0b0 #define VMCB_GUEST_ES_SEL 0x400 #define VMCB_GUEST_ES_ATTR 0x402 #define VMCB_GUEST_ES_LIM 0x404 #define VMCB_GUEST_ES_BASE 0x408 #define VMCB_GUEST_CS_SEL 0x410 #define VMCB_GUEST_CS_ATTR 0x412 #define VMCB_GUEST_CS_LIM 0x414 #define VMCB_GUEST_CS_BASE 0x418 #define VMCB_GUEST_SS_SEL 0x420 #define VMCB_GUEST_SS_ATTR 0x422 #define VMCB_GUEST_SS_LIM 0x424 #define VMCB_GUEST_SS_BASE 0x428 #define VMCB_GUEST_DS_SEL 0x430 #define VMCB_GUEST_DS_ATTR 0x432 #define VMCB_GUEST_DS_LIM 0x434 #define VMCB_GUEST_DS_BASE 0x438 #define VMCB_GUEST_FS_SEL 0x440 #define VMCB_GUEST_FS_ATTR 0x442 #define VMCB_GUEST_FS_LIM 0x444 #define VMCB_GUEST_FS_BASE 0x448 #define VMCB_GUEST_GS_SEL 0x450 #define VMCB_GUEST_GS_ATTR 0x452 #define VMCB_GUEST_GS_LIM 0x454 #define VMCB_GUEST_GS_BASE 0x458 #define VMCB_GUEST_IDTR_SEL 0x480 #define VMCB_GUEST_IDTR_ATTR 0x482 #define VMCB_GUEST_IDTR_LIM 0x484 #define VMCB_GUEST_IDTR_BASE 0x488 #define VMCB_GUEST_GDTR_SEL 0x460 #define VMCB_GUEST_GDTR_ATTR 0x462 #define VMCB_GUEST_GDTR_LIM 0x464 #define VMCB_GUEST_GDTR_BASE 0x468 #define VMCB_GUEST_LDTR_SEL 0x470 #define VMCB_GUEST_LDTR_ATTR 0x472 #define VMCB_GUEST_LDTR_LIM 0x474 #define VMCB_GUEST_LDTR_BASE 0x478 #define VMCB_GUEST_TR_SEL 0x490 #define VMCB_GUEST_TR_ATTR 0x492 #define VMCB_GUEST_TR_LIM 0x494 #define VMCB_GUEST_TR_BASE 0x498 #define VMCB_GUEST_EFER 0x4d0 #define VMCB_GUEST_CR4 0x548 #define VMCB_GUEST_CR3 0x550 #define VMCB_GUEST_CR0 0x558 #define VMCB_GUEST_DR7 0x560 #define VMCB_GUEST_DR6 0x568 #define VMCB_GUEST_RFLAGS 0x570 #define VMCB_GUEST_RIP 0x578 #define VMCB_GUEST_RSP 0x5d8 #define VMCB_GUEST_PAT 0x668 #define VMCB_GUEST_DEBUGCTL 0x670 #define SVM_ATTR_G (1 << 15) #define SVM_ATTR_DB (1 << 14) #define SVM_ATTR_L (1 << 13) #define SVM_ATTR_P (1 << 7) #define SVM_ATTR_S (1 << 4) #define SVM_ATTR_TYPE_A (1 << 0) #define SVM_ATTR_TYPE_RW (1 << 1) #define SVM_ATTR_TYPE_E (1 << 3) #define SVM_ATTR_64BIT_CODE (SVM_ATTR_P | SVM_ATTR_S | SVM_ATTR_TYPE_E | SVM_ATTR_TYPE_RW | SVM_ATTR_TYPE_A | SVM_ATTR_L | SVM_ATTR_G) #define SVM_ATTR_64BIT_DATA (SVM_ATTR_P | SVM_ATTR_S | SVM_ATTR_TYPE_RW | SVM_ATTR_TYPE_A | SVM_ATTR_DB | SVM_ATTR_G) #define X86_NEXT_INSN $0xbadc0de #define X86_PREFIX_SIZE 0xba1d #define KVM_MAX_VCPU 4 #define KVM_PAGE_SIZE (1 << 12) #define KVM_GUEST_PAGES 1024 #define KVM_GUEST_MEM_SIZE (KVM_GUEST_PAGES * KVM_PAGE_SIZE) #define SZ_4K 0x00001000 #define SZ_64K 0x00010000 #define GENMASK_ULL(h,l) (((~0ULL) - (1ULL << (l)) + 1ULL) & (~0ULL >> (63 - (h)))) extern char* __start_guest; static inline uintptr_t executor_fn_guest_addr(void* fn) { volatile uintptr_t start = (uintptr_t)&__start_guest; volatile uintptr_t offset = SYZOS_ADDR_EXECUTOR_CODE; return (uintptr_t)fn - start + offset; } typedef enum { SYZOS_API_UEXIT = 0, SYZOS_API_CODE = 10, SYZOS_API_CPUID = 100, SYZOS_API_WRMSR = 101, SYZOS_API_RDMSR = 102, SYZOS_API_WR_CRN = 103, SYZOS_API_WR_DRN = 104, SYZOS_API_IN_DX = 105, SYZOS_API_OUT_DX = 106, SYZOS_API_SET_IRQ_HANDLER = 200, SYZOS_API_ENABLE_NESTED = 300, SYZOS_API_NESTED_CREATE_VM = 301, SYZOS_API_NESTED_LOAD_CODE = 302, SYZOS_API_NESTED_VMLAUNCH = 303, SYZOS_API_NESTED_VMRESUME = 304, SYZOS_API_NESTED_INTEL_VMWRITE_MASK = 340, SYZOS_API_NESTED_AMD_VMCB_WRITE_MASK = 380, SYZOS_API_NESTED_AMD_INVLPGA = 381, SYZOS_API_NESTED_AMD_STGI = 382, SYZOS_API_NESTED_AMD_CLGI = 383, SYZOS_API_NESTED_AMD_INJECT_EVENT = 384, SYZOS_API_NESTED_AMD_SET_INTERCEPT = 385, SYZOS_API_NESTED_AMD_VMLOAD = 386, SYZOS_API_NESTED_AMD_VMSAVE = 387, SYZOS_API_STOP, } syzos_api_id; struct api_call_header { uint64_t call; uint64_t size; }; struct api_call_uexit { struct api_call_header header; uint64_t exit_code; }; struct api_call_code { struct api_call_header header; uint8_t insns[]; }; struct api_call_nested_load_code { struct api_call_header header; uint64_t vm_id; uint8_t insns[]; }; struct api_call_cpuid { struct api_call_header header; uint32_t eax; uint32_t ecx; }; struct api_call_1 { struct api_call_header header; uint64_t arg; }; struct api_call_2 { struct api_call_header header; uint64_t args[2]; }; struct api_call_3 { struct api_call_header header; uint64_t args[3]; }; struct api_call_5 { struct api_call_header header; uint64_t args[5]; }; struct l2_guest_regs { uint64_t rax, rbx, rcx, rdx, rsi, rdi, rbp; uint64_t r8, r9, r10, r11, r12, r13, r14, r15; }; GUEST_CODE static void guest_uexit(uint64_t exit_code); GUEST_CODE static void nested_vm_exit_handler_intel(uint64_t exit_reason, struct l2_guest_regs* regs); GUEST_CODE static void guest_execute_code(uint8_t* insns, uint64_t size); GUEST_CODE static void guest_handle_cpuid(uint32_t eax, uint32_t ecx); GUEST_CODE static void guest_handle_wrmsr(uint64_t reg, uint64_t val); GUEST_CODE static void guest_handle_rdmsr(uint64_t reg); GUEST_CODE static void guest_handle_wr_crn(struct api_call_2* cmd); GUEST_CODE static void guest_handle_wr_drn(struct api_call_2* cmd); GUEST_CODE static void guest_handle_in_dx(struct api_call_2* cmd); GUEST_CODE static void guest_handle_out_dx(struct api_call_3* cmd); GUEST_CODE static void guest_handle_set_irq_handler(struct api_call_2* cmd); GUEST_CODE static void guest_handle_enable_nested(struct api_call_1* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_create_vm(struct api_call_1* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_load_code(struct api_call_nested_load_code* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_vmlaunch(struct api_call_1* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_vmresume(struct api_call_1* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_intel_vmwrite_mask(struct api_call_5* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_vmcb_write_mask(struct api_call_5* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_invlpga(struct api_call_2* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_stgi(); GUEST_CODE static void guest_handle_nested_amd_clgi(); GUEST_CODE static void guest_handle_nested_amd_inject_event(struct api_call_5* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_set_intercept(struct api_call_5* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_vmload(struct api_call_1* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_vmsave(struct api_call_1* cmd, uint64_t cpu_id); typedef enum { UEXIT_END = (uint64_t)-1, UEXIT_IRQ = (uint64_t)-2, UEXIT_ASSERT = (uint64_t)-3, } uexit_code; typedef enum { CPU_VENDOR_INTEL, CPU_VENDOR_AMD, } cpu_vendor_id; __attribute__((naked)) GUEST_CODE static void dummy_null_handler() { asm("iretq"); } __attribute__((naked)) GUEST_CODE static void uexit_irq_handler() { asm volatile(R"( movq $-2, %rdi call guest_uexit iretq )"); } __attribute__((used)) GUEST_CODE static void guest_main(uint64_t size, uint64_t cpu) { uint64_t addr = X86_SYZOS_ADDR_USER_CODE + cpu * KVM_PAGE_SIZE; while (size >= sizeof(struct api_call_header)) { struct api_call_header* cmd = (struct api_call_header*)addr; if (cmd->call >= SYZOS_API_STOP) return; if (cmd->size > size) return; volatile uint64_t call = cmd->call; if (call == SYZOS_API_UEXIT) { struct api_call_uexit* ucmd = (struct api_call_uexit*)cmd; guest_uexit(ucmd->exit_code); } else if (call == SYZOS_API_CODE) { struct api_call_code* ccmd = (struct api_call_code*)cmd; guest_execute_code(ccmd->insns, cmd->size - sizeof(struct api_call_header)); } else if (call == SYZOS_API_CPUID) { struct api_call_cpuid* ccmd = (struct api_call_cpuid*)cmd; guest_handle_cpuid(ccmd->eax, ccmd->ecx); } else if (call == SYZOS_API_WRMSR) { struct api_call_2* ccmd = (struct api_call_2*)cmd; guest_handle_wrmsr(ccmd->args[0], ccmd->args[1]); } else if (call == SYZOS_API_RDMSR) { struct api_call_1* ccmd = (struct api_call_1*)cmd; guest_handle_rdmsr(ccmd->arg); } else if (call == SYZOS_API_WR_CRN) { guest_handle_wr_crn((struct api_call_2*)cmd); } else if (call == SYZOS_API_WR_DRN) { guest_handle_wr_drn((struct api_call_2*)cmd); } else if (call == SYZOS_API_IN_DX) { guest_handle_in_dx((struct api_call_2*)cmd); } else if (call == SYZOS_API_OUT_DX) { guest_handle_out_dx((struct api_call_3*)cmd); } else if (call == SYZOS_API_SET_IRQ_HANDLER) { guest_handle_set_irq_handler((struct api_call_2*)cmd); } else if (call == SYZOS_API_ENABLE_NESTED) { guest_handle_enable_nested((struct api_call_1*)cmd, cpu); } else if (call == SYZOS_API_NESTED_CREATE_VM) { guest_handle_nested_create_vm((struct api_call_1*)cmd, cpu); } else if (call == SYZOS_API_NESTED_LOAD_CODE) { guest_handle_nested_load_code((struct api_call_nested_load_code*)cmd, cpu); } else if (call == SYZOS_API_NESTED_VMLAUNCH) { guest_handle_nested_vmlaunch((struct api_call_1*)cmd, cpu); } else if (call == SYZOS_API_NESTED_VMRESUME) { guest_handle_nested_vmresume((struct api_call_1*)cmd, cpu); } else if (call == SYZOS_API_NESTED_INTEL_VMWRITE_MASK) { guest_handle_nested_intel_vmwrite_mask((struct api_call_5*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_VMCB_WRITE_MASK) { guest_handle_nested_amd_vmcb_write_mask((struct api_call_5*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_INVLPGA) { guest_handle_nested_amd_invlpga((struct api_call_2*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_STGI) { guest_handle_nested_amd_stgi(); } else if (call == SYZOS_API_NESTED_AMD_CLGI) { guest_handle_nested_amd_clgi(); } else if (call == SYZOS_API_NESTED_AMD_INJECT_EVENT) { guest_handle_nested_amd_inject_event((struct api_call_5*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_SET_INTERCEPT) { guest_handle_nested_amd_set_intercept((struct api_call_5*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_VMLOAD) { guest_handle_nested_amd_vmload((struct api_call_1*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_VMSAVE) { guest_handle_nested_amd_vmsave((struct api_call_1*)cmd, cpu); } addr += cmd->size; size -= cmd->size; }; guest_uexit((uint64_t)-1); } GUEST_CODE static noinline void guest_execute_code(uint8_t* insns, uint64_t size) { volatile void (*fn)() = (volatile void (*)())insns; fn(); } __attribute__((used)) GUEST_CODE static noinline void guest_uexit(uint64_t exit_code) { volatile uint64_t* ptr = (volatile uint64_t*)X86_SYZOS_ADDR_UEXIT; *ptr = exit_code; } GUEST_CODE static noinline void guest_handle_cpuid(uint32_t eax, uint32_t ecx) { asm volatile( "cpuid\n" : : "a"(eax), "c"(ecx) : "rbx", "rdx"); } GUEST_CODE static noinline void wrmsr(uint64_t reg, uint64_t val) { asm volatile( "wrmsr" : : "c"(reg), "a"((uint32_t)val), "d"((uint32_t)(val >> 32)) : "memory"); } GUEST_CODE static noinline void guest_handle_wrmsr(uint64_t reg, uint64_t val) { wrmsr(reg, val); } GUEST_CODE static noinline uint64_t rdmsr(uint64_t msr_id) { uint32_t low = 0, high = 0; asm volatile("rdmsr" : "=a"(low), "=d"(high) : "c"(msr_id)); return ((uint64_t)high << 32) | low; } GUEST_CODE static noinline void guest_handle_rdmsr(uint64_t reg) { (void)rdmsr(reg); } GUEST_CODE static noinline void guest_handle_wr_crn(struct api_call_2* cmd) { uint64_t value = cmd->args[1]; volatile uint64_t reg = cmd->args[0]; if (reg == 0) { asm volatile("movq %0, %%cr0" ::"r"(value) : "memory"); return; } if (reg == 2) { asm volatile("movq %0, %%cr2" ::"r"(value) : "memory"); return; } if (reg == 3) { asm volatile("movq %0, %%cr3" ::"r"(value) : "memory"); return; } if (reg == 4) { asm volatile("movq %0, %%cr4" ::"r"(value) : "memory"); return; } if (reg == 8) { asm volatile("movq %0, %%cr8" ::"r"(value) : "memory"); return; } } GUEST_CODE static noinline void guest_handle_wr_drn(struct api_call_2* cmd) { uint64_t value = cmd->args[1]; volatile uint64_t reg = cmd->args[0]; if (reg == 0) { asm volatile("movq %0, %%dr0" ::"r"(value) : "memory"); return; } if (reg == 1) { asm volatile("movq %0, %%dr1" ::"r"(value) : "memory"); return; } if (reg == 2) { asm volatile("movq %0, %%dr2" ::"r"(value) : "memory"); return; } if (reg == 3) { asm volatile("movq %0, %%dr3" ::"r"(value) : "memory"); return; } if (reg == 4) { asm volatile("movq %0, %%dr4" ::"r"(value) : "memory"); return; } if (reg == 5) { asm volatile("movq %0, %%dr5" ::"r"(value) : "memory"); return; } if (reg == 6) { asm volatile("movq %0, %%dr6" ::"r"(value) : "memory"); return; } if (reg == 7) { asm volatile("movq %0, %%dr7" ::"r"(value) : "memory"); return; } } GUEST_CODE static noinline void guest_handle_in_dx(struct api_call_2* cmd) { uint16_t port = cmd->args[0]; volatile int size = cmd->args[1]; if (size == 1) { uint8_t unused; asm volatile("inb %1, %0" : "=a"(unused) : "d"(port)); return; } if (size == 2) { uint16_t unused; asm volatile("inw %1, %0" : "=a"(unused) : "d"(port)); return; } if (size == 4) { uint32_t unused; asm volatile("inl %1, %0" : "=a"(unused) : "d"(port)); } return; } GUEST_CODE static noinline void guest_handle_out_dx(struct api_call_3* cmd) { uint16_t port = cmd->args[0]; volatile int size = cmd->args[1]; uint32_t data = (uint32_t)cmd->args[2]; if (size == 1) { asm volatile("outb %b0, %w1" ::"a"(data), "d"(port)); return; } if (size == 2) { asm volatile("outw %w0, %w1" ::"a"(data), "d"(port)); return; } if (size == 4) { asm volatile("outl %k0, %w1" ::"a"(data), "d"(port)); return; } } struct idt_entry_64 { uint16_t offset_low; uint16_t selector; uint8_t ist; uint8_t type_attr; uint16_t offset_mid; uint32_t offset_high; uint32_t reserved; } __attribute__((packed)); GUEST_CODE static void set_idt_gate(uint8_t vector, uint64_t handler) { volatile struct idt_entry_64* idt = (volatile struct idt_entry_64*)(X86_SYZOS_ADDR_VAR_IDT); volatile struct idt_entry_64* idt_entry = &idt[vector]; idt_entry->offset_low = (uint16_t)handler; idt_entry->offset_mid = (uint16_t)(handler >> 16); idt_entry->offset_high = (uint32_t)(handler >> 32); idt_entry->selector = X86_SYZOS_SEL_CODE; idt_entry->type_attr = 0x8E; idt_entry->ist = 0; idt_entry->reserved = 0; } GUEST_CODE static noinline void guest_handle_set_irq_handler(struct api_call_2* cmd) { uint8_t vector = (uint8_t)cmd->args[0]; uint64_t type = cmd->args[1]; volatile uint64_t handler_addr = 0; if (type == 1) handler_addr = executor_fn_guest_addr(dummy_null_handler); else if (type == 2) handler_addr = executor_fn_guest_addr(uexit_irq_handler); set_idt_gate(vector, handler_addr); } GUEST_CODE static cpu_vendor_id get_cpu_vendor(void) { uint32_t ebx, eax = 0; asm volatile( "cpuid" : "+a"(eax), "=b"(ebx) : : "ecx", "edx"); if (ebx == 0x756e6547) { return CPU_VENDOR_INTEL; } else if (ebx == 0x68747541) { return CPU_VENDOR_AMD; } else { guest_uexit(UEXIT_ASSERT); return CPU_VENDOR_INTEL; } } GUEST_CODE static inline uint64_t read_cr0(void) { uint64_t val; asm volatile("mov %%cr0, %0" : "=r"(val)); return val; } GUEST_CODE static inline uint64_t read_cr3(void) { uint64_t val; asm volatile("mov %%cr3, %0" : "=r"(val)); return val; } GUEST_CODE static inline uint64_t read_cr4(void) { uint64_t val; asm volatile("mov %%cr4, %0" : "=r"(val)); return val; } GUEST_CODE static inline void write_cr4(uint64_t val) { asm volatile("mov %0, %%cr4" : : "r"(val)); } GUEST_CODE static noinline void vmwrite(uint64_t field, uint64_t value) { uint8_t error = 0; asm volatile("vmwrite %%rax, %%rbx; setna %0" : "=q"(error) : "a"(value), "b"(field) : "cc", "memory"); if (error) guest_uexit(UEXIT_ASSERT); } GUEST_CODE static noinline uint64_t vmread(uint64_t field) { uint64_t value; asm volatile("vmread %%rbx, %%rax" : "=a"(value) : "b"(field) : "cc"); return value; } GUEST_CODE static inline void nested_vmptrld(uint64_t cpu_id, uint64_t vm_id) { uint64_t vmcs_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint8_t error = 0; asm volatile("vmptrld %1; setna %0" : "=q"(error) : "m"(vmcs_addr) : "memory", "cc"); if (error) guest_uexit(0xE2BAD2); } GUEST_CODE static noinline void vmcb_write16(uint64_t vmcb, uint16_t offset, uint16_t val) { *((volatile uint16_t*)(vmcb + offset)) = val; } GUEST_CODE static noinline void vmcb_write32(uint64_t vmcb, uint16_t offset, uint32_t val) { *((volatile uint32_t*)(vmcb + offset)) = val; } GUEST_CODE static noinline uint32_t vmcb_read32(uint64_t vmcb, uint16_t offset) { return *((volatile uint32_t*)(vmcb + offset)); } GUEST_CODE static noinline void vmcb_write64(uint64_t vmcb, uint16_t offset, uint64_t val) { *((volatile uint64_t*)(vmcb + offset)) = val; } GUEST_CODE static noinline uint64_t vmcb_read64(volatile uint8_t* vmcb, uint16_t offset) { return *((volatile uint64_t*)(vmcb + offset)); } GUEST_CODE static void guest_memset(void* s, uint8_t c, int size) { volatile uint8_t* p = (volatile uint8_t*)s; for (int i = 0; i < size; i++) p[i] = c; } GUEST_CODE static void guest_memcpy(void* dst, void* src, int size) { volatile uint8_t* d = (volatile uint8_t*)dst; volatile uint8_t* s = (volatile uint8_t*)src; for (int i = 0; i < size; i++) d[i] = s[i]; } GUEST_CODE static noinline void nested_enable_vmx_intel(uint64_t cpu_id) { uint64_t vmxon_addr = X86_SYZOS_ADDR_VM_ARCH_SPECIFIC(cpu_id); uint64_t cr4 = read_cr4(); cr4 |= X86_CR4_VMXE; write_cr4(cr4); uint64_t feature_control = rdmsr(X86_MSR_IA32_FEATURE_CONTROL); if ((feature_control & 1) == 0) { feature_control |= 0b101; asm volatile("wrmsr" : : "d"(0x0), "c"(X86_MSR_IA32_FEATURE_CONTROL), "A"(feature_control)); } *(uint32_t*)vmxon_addr = rdmsr(X86_MSR_IA32_VMX_BASIC); uint8_t error; asm volatile("vmxon %1; setna %0" : "=q"(error) : "m"(vmxon_addr) : "memory", "cc"); if (error) { guest_uexit(0xE2BAD0); return; } } GUEST_CODE static noinline void nested_enable_svm_amd(uint64_t cpu_id) { uint64_t hsave_addr = X86_SYZOS_ADDR_VM_ARCH_SPECIFIC(cpu_id); uint64_t efer = rdmsr(X86_MSR_IA32_EFER); efer |= X86_EFER_SVME; wrmsr(X86_MSR_IA32_EFER, efer); wrmsr(X86_MSR_VM_HSAVE_PA, hsave_addr); } GUEST_CODE static noinline void guest_handle_enable_nested(struct api_call_1* cmd, uint64_t cpu_id) { if (get_cpu_vendor() == CPU_VENDOR_INTEL) { nested_enable_vmx_intel(cpu_id); } else { nested_enable_svm_amd(cpu_id); } } GUEST_CODE static noinline void setup_l2_page_tables(cpu_vendor_id vendor, uint64_t cpu_id, uint64_t vm_id) { uint64_t l2_pml4_addr = X86_SYZOS_ADDR_VM_PGTABLE(cpu_id, vm_id); uint64_t l2_pdpt_addr = l2_pml4_addr + KVM_PAGE_SIZE; uint64_t l2_pd_addr = l2_pml4_addr + 2 * KVM_PAGE_SIZE; uint64_t l2_pt_addr = l2_pml4_addr + 3 * KVM_PAGE_SIZE; volatile uint64_t* pml4 = (volatile uint64_t*)l2_pml4_addr; volatile uint64_t* pdpt = (volatile uint64_t*)l2_pdpt_addr; volatile uint64_t* pd = (volatile uint64_t*)l2_pd_addr; volatile uint64_t* pt = (volatile uint64_t*)l2_pt_addr; guest_memset((void*)l2_pml4_addr, 0, KVM_PAGE_SIZE); guest_memset((void*)l2_pdpt_addr, 0, KVM_PAGE_SIZE); guest_memset((void*)l2_pd_addr, 0, KVM_PAGE_SIZE); guest_memset((void*)l2_pt_addr, 0, KVM_PAGE_SIZE); guest_memset((void*)X86_SYZOS_ADDR_MSR_BITMAP(cpu_id, vm_id), 0, KVM_PAGE_SIZE); uint64_t flags = X86_PDE64_PRESENT | X86_PDE64_RW | X86_PDE64_USER; pml4[0] = l2_pdpt_addr | flags; pdpt[0] = l2_pd_addr | flags; pd[0] = l2_pt_addr | flags; uint64_t pt_flags = flags; if (vendor == CPU_VENDOR_INTEL) { pt_flags |= EPT_MEMTYPE_WB | EPT_ACCESSED | EPT_DIRTY; } else { pt_flags |= X86_PDE64_ACCESSED | X86_PDE64_DIRTY; } for (int i = 0; i < 512; i++) pt[i] = (i * KVM_PAGE_SIZE) | pt_flags; } GUEST_CODE static noinline void init_vmcs_control_fields(uint64_t cpu_id, uint64_t vm_id) { uint64_t vmx_msr = rdmsr(X86_MSR_IA32_VMX_TRUE_PINBASED_CTLS); vmwrite(VMCS_PIN_BASED_VM_EXEC_CONTROL, (uint32_t)vmx_msr); vmx_msr = (uint32_t)rdmsr(X86_MSR_IA32_VMX_PROCBASED_CTLS2); vmx_msr |= SECONDARY_EXEC_ENABLE_EPT | SECONDARY_EXEC_ENABLE_RDTSCP; vmwrite(VMCS_SECONDARY_VM_EXEC_CONTROL, vmx_msr); vmx_msr = rdmsr(X86_MSR_IA32_VMX_TRUE_PROCBASED_CTLS); vmx_msr |= CPU_BASED_ACTIVATE_SECONDARY_CONTROLS; vmx_msr |= CPU_BASED_HLT_EXITING | CPU_BASED_RDTSC_EXITING; vmwrite(VMCS_CPU_BASED_VM_EXEC_CONTROL, (uint32_t)vmx_msr); vmx_msr = rdmsr(X86_MSR_IA32_VMX_TRUE_EXIT_CTLS); vmwrite(VMCS_VM_EXIT_CONTROLS, (uint32_t)vmx_msr | VM_EXIT_HOST_ADDR_SPACE_SIZE); vmx_msr = rdmsr(X86_MSR_IA32_VMX_TRUE_ENTRY_CTLS); vmwrite(VMCS_VM_ENTRY_CONTROLS, (uint32_t)vmx_msr | VM_ENTRY_IA32E_MODE); uint64_t eptp = (X86_SYZOS_ADDR_VM_PGTABLE(cpu_id, vm_id) & ~0xFFF) | (6 << 0) | (3 << 3); vmwrite(VMCS_EPT_POINTER, eptp); vmwrite(VMCS_CR0_GUEST_HOST_MASK, 0); vmwrite(VMCS_CR4_GUEST_HOST_MASK, 0); vmwrite(VMCS_CR0_READ_SHADOW, read_cr0()); vmwrite(VMCS_CR4_READ_SHADOW, read_cr4()); vmwrite(VMCS_MSR_BITMAP, 0); vmwrite(VMCS_VMREAD_BITMAP, 0); vmwrite(VMCS_VMWRITE_BITMAP, 0); vmwrite(VMCS_EXCEPTION_BITMAP, (1 << 6)); vmwrite(VMCS_VIRTUAL_PROCESSOR_ID, 0); vmwrite(VMCS_POSTED_INTR_NV, 0); vmwrite(VMCS_PAGE_FAULT_ERROR_CODE_MASK, 0); vmwrite(VMCS_PAGE_FAULT_ERROR_CODE_MATCH, -1); vmwrite(VMCS_CR3_TARGET_COUNT, 0); vmwrite(VMCS_VM_EXIT_MSR_STORE_COUNT, 0); vmwrite(VMCS_VM_EXIT_MSR_LOAD_COUNT, 0); vmwrite(VMCS_VM_ENTRY_MSR_LOAD_COUNT, 0); vmwrite(VMCS_VM_ENTRY_INTR_INFO_FIELD, 0); vmwrite(VMCS_TPR_THRESHOLD, 0); } typedef enum { SYZOS_NESTED_EXIT_REASON_HLT = 1, SYZOS_NESTED_EXIT_REASON_INVD = 2, SYZOS_NESTED_EXIT_REASON_CPUID = 3, SYZOS_NESTED_EXIT_REASON_RDTSC = 4, SYZOS_NESTED_EXIT_REASON_RDTSCP = 5, SYZOS_NESTED_EXIT_REASON_UNKNOWN = 0xFF, } syz_nested_exit_reason; GUEST_CODE static void guest_uexit_l2(uint64_t exit_reason, syz_nested_exit_reason mapped_reason, cpu_vendor_id vendor) { if (mapped_reason != SYZOS_NESTED_EXIT_REASON_UNKNOWN) { guest_uexit(0xe2e20000 | mapped_reason); } else if (vendor == CPU_VENDOR_INTEL) { guest_uexit(0xe2110000 | exit_reason); } else { guest_uexit(0xe2aa0000 | exit_reason); } } #define EXIT_REASON_CPUID 0xa #define EXIT_REASON_HLT 0xc #define EXIT_REASON_INVD 0xd #define EXIT_REASON_RDTSC 0x10 #define EXIT_REASON_RDTSCP 0x33 GUEST_CODE static syz_nested_exit_reason map_intel_exit_reason(uint64_t basic_reason) { volatile uint64_t reason = basic_reason; if (reason == EXIT_REASON_HLT) return SYZOS_NESTED_EXIT_REASON_HLT; if (reason == EXIT_REASON_INVD) return SYZOS_NESTED_EXIT_REASON_INVD; if (reason == EXIT_REASON_CPUID) return SYZOS_NESTED_EXIT_REASON_CPUID; if (reason == EXIT_REASON_RDTSC) return SYZOS_NESTED_EXIT_REASON_RDTSC; if (reason == EXIT_REASON_RDTSCP) return SYZOS_NESTED_EXIT_REASON_RDTSCP; return SYZOS_NESTED_EXIT_REASON_UNKNOWN; } GUEST_CODE static void advance_l2_rip_intel(uint64_t basic_reason) { volatile uint64_t reason = basic_reason; uint64_t rip = vmread(VMCS_GUEST_RIP); if ((reason == EXIT_REASON_INVD) || (reason == EXIT_REASON_CPUID) || (reason == EXIT_REASON_RDTSC)) { rip += 2; } else if (reason == EXIT_REASON_RDTSCP) { rip += 3; } vmwrite(VMCS_GUEST_RIP, rip); } __attribute__((used)) GUEST_CODE static void nested_vm_exit_handler_intel(uint64_t exit_reason, struct l2_guest_regs* regs) { uint64_t basic_reason = exit_reason & 0xFFFF; syz_nested_exit_reason mapped_reason = map_intel_exit_reason(basic_reason); guest_uexit_l2(exit_reason, mapped_reason, CPU_VENDOR_INTEL); advance_l2_rip_intel(basic_reason); } extern char after_vmentry_label; __attribute__((naked)) GUEST_CODE static void nested_vm_exit_handler_intel_asm(void) { asm volatile(R"( push %%rax push %%rbx push %%rcx push %%rdx push %%rsi push %%rdi push %%rbp push %%r8 push %%r9 push %%r10 push %%r11 push %%r12 push %%r13 push %%r14 push %%r15 mov %%rsp, %%rsi mov %[vm_exit_reason], %%rbx vmread %%rbx, %%rdi call nested_vm_exit_handler_intel add %[stack_cleanup_size], %%rsp jmp after_vmentry_label )" : : [stack_cleanup_size] "i"(sizeof(struct l2_guest_regs)), [vm_exit_reason] "i"(VMCS_VM_EXIT_REASON) : "memory", "cc", "rbx", "rdi", "rsi"); } #define VMEXIT_RDTSC 0x6e #define VMEXIT_CPUID 0x72 #define VMEXIT_INVD 0x76 #define VMEXIT_HLT 0x78 #define VMEXIT_RDTSCP 0x87 GUEST_CODE static syz_nested_exit_reason map_amd_exit_reason(uint64_t basic_reason) { volatile uint64_t reason = basic_reason; if (reason == VMEXIT_HLT) return SYZOS_NESTED_EXIT_REASON_HLT; if (reason == VMEXIT_INVD) return SYZOS_NESTED_EXIT_REASON_INVD; if (reason == VMEXIT_CPUID) return SYZOS_NESTED_EXIT_REASON_CPUID; if (reason == VMEXIT_RDTSC) return SYZOS_NESTED_EXIT_REASON_RDTSC; if (reason == VMEXIT_RDTSCP) return SYZOS_NESTED_EXIT_REASON_RDTSCP; return SYZOS_NESTED_EXIT_REASON_UNKNOWN; } GUEST_CODE static void advance_l2_rip_amd(uint64_t basic_reason, uint64_t cpu_id, uint64_t vm_id) { volatile uint64_t reason = basic_reason; uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint64_t rip = vmcb_read64((volatile uint8_t*)vmcb_addr, VMCB_GUEST_RIP); if ((reason == VMEXIT_INVD) || (reason == VMEXIT_CPUID) || (reason == VMEXIT_RDTSC)) { rip += 2; } else if (reason == VMEXIT_RDTSCP) { rip += 3; } vmcb_write64(vmcb_addr, VMCB_GUEST_RIP, rip); } __attribute__((used)) GUEST_CODE static void nested_vm_exit_handler_amd(uint64_t exit_reason, uint64_t cpu_id, uint64_t vm_id) { volatile uint64_t basic_reason = exit_reason & 0xFFFF; syz_nested_exit_reason mapped_reason = map_amd_exit_reason(basic_reason); guest_uexit_l2(exit_reason, mapped_reason, CPU_VENDOR_AMD); advance_l2_rip_amd(basic_reason, cpu_id, vm_id); } GUEST_CODE static noinline void init_vmcs_host_state(void) { vmwrite(VMCS_HOST_CS_SELECTOR, X86_SYZOS_SEL_CODE); vmwrite(VMCS_HOST_DS_SELECTOR, X86_SYZOS_SEL_DATA); vmwrite(VMCS_HOST_ES_SELECTOR, X86_SYZOS_SEL_DATA); vmwrite(VMCS_HOST_SS_SELECTOR, X86_SYZOS_SEL_DATA); vmwrite(VMCS_HOST_FS_SELECTOR, X86_SYZOS_SEL_DATA); vmwrite(VMCS_HOST_GS_SELECTOR, X86_SYZOS_SEL_DATA); vmwrite(VMCS_HOST_TR_SELECTOR, X86_SYZOS_SEL_TSS64); vmwrite(VMCS_HOST_TR_BASE, 0); vmwrite(VMCS_HOST_GDTR_BASE, X86_SYZOS_ADDR_GDT); vmwrite(VMCS_HOST_IDTR_BASE, X86_SYZOS_ADDR_VAR_IDT); vmwrite(VMCS_HOST_FS_BASE, rdmsr(X86_MSR_FS_BASE)); vmwrite(VMCS_HOST_GS_BASE, rdmsr(X86_MSR_GS_BASE)); uint64_t tmpreg = 0; asm volatile("mov %%rsp, %0" : "=r"(tmpreg)); vmwrite(VMCS_HOST_RSP, tmpreg); vmwrite(VMCS_HOST_RIP, (uintptr_t)nested_vm_exit_handler_intel_asm); vmwrite(VMCS_HOST_CR0, read_cr0()); vmwrite(VMCS_HOST_CR3, read_cr3()); vmwrite(VMCS_HOST_CR4, read_cr4()); vmwrite(VMCS_HOST_IA32_PAT, rdmsr(X86_MSR_IA32_CR_PAT)); vmwrite(VMCS_HOST_IA32_EFER, rdmsr(X86_MSR_IA32_EFER)); vmwrite(VMCS_HOST_IA32_PERF_GLOBAL_CTRL, rdmsr(X86_MSR_CORE_PERF_GLOBAL_CTRL)); vmwrite(VMCS_HOST_IA32_SYSENTER_CS, rdmsr(X86_MSR_IA32_SYSENTER_CS)); vmwrite(VMCS_HOST_IA32_SYSENTER_ESP, rdmsr(X86_MSR_IA32_SYSENTER_ESP)); vmwrite(VMCS_HOST_IA32_SYSENTER_EIP, rdmsr(X86_MSR_IA32_SYSENTER_EIP)); } #define COPY_VMCS_FIELD(GUEST_FIELD,HOST_FIELD) vmwrite(GUEST_FIELD, vmread(HOST_FIELD)) #define SETUP_L2_SEGMENT(SEG,SELECTOR,BASE,LIMIT,AR) vmwrite(VMCS_GUEST_ ##SEG ##_SELECTOR, SELECTOR); vmwrite(VMCS_GUEST_ ##SEG ##_BASE, BASE); vmwrite(VMCS_GUEST_ ##SEG ##_LIMIT, LIMIT); vmwrite(VMCS_GUEST_ ##SEG ##_ACCESS_RIGHTS, AR); GUEST_CODE static noinline void init_vmcs_guest_state(uint64_t cpu_id, uint64_t vm_id) { uint64_t l2_code_addr = X86_SYZOS_ADDR_VM_CODE(cpu_id, vm_id); uint64_t l2_stack_addr = X86_SYZOS_ADDR_VM_STACK(cpu_id, vm_id); SETUP_L2_SEGMENT(CS, vmread(VMCS_HOST_CS_SELECTOR), 0, 0xFFFFFFFF, VMX_AR_64BIT_CODE); SETUP_L2_SEGMENT(DS, vmread(VMCS_HOST_DS_SELECTOR), 0, 0xFFFFFFFF, VMX_AR_64BIT_DATA_STACK); SETUP_L2_SEGMENT(ES, vmread(VMCS_HOST_ES_SELECTOR), 0, 0xFFFFFFFF, VMX_AR_64BIT_DATA_STACK); SETUP_L2_SEGMENT(SS, vmread(VMCS_HOST_SS_SELECTOR), 0, 0xFFFFFFFF, VMX_AR_64BIT_DATA_STACK); SETUP_L2_SEGMENT(FS, vmread(VMCS_HOST_FS_SELECTOR), vmread(VMCS_HOST_FS_BASE), 0xFFFFFFFF, VMX_AR_64BIT_DATA_STACK); SETUP_L2_SEGMENT(GS, vmread(VMCS_HOST_GS_SELECTOR), vmread(VMCS_HOST_GS_BASE), 0xFFFFFFFF, VMX_AR_64BIT_DATA_STACK); SETUP_L2_SEGMENT(TR, vmread(VMCS_HOST_TR_SELECTOR), vmread(VMCS_HOST_TR_BASE), 0x67, VMX_AR_TSS_BUSY); SETUP_L2_SEGMENT(LDTR, 0, 0, 0, VMX_AR_LDTR_UNUSABLE); vmwrite(VMCS_GUEST_CR0, vmread(VMCS_HOST_CR0)); vmwrite(VMCS_GUEST_CR3, vmread(VMCS_HOST_CR3)); vmwrite(VMCS_GUEST_CR4, vmread(VMCS_HOST_CR4)); vmwrite(VMCS_GUEST_RIP, l2_code_addr); vmwrite(VMCS_GUEST_RSP, l2_stack_addr + KVM_PAGE_SIZE - 8); vmwrite(VMCS_GUEST_RFLAGS, RFLAGS_1_BIT); vmwrite(VMCS_GUEST_DR7, 0x400); COPY_VMCS_FIELD(VMCS_GUEST_IA32_EFER, VMCS_HOST_IA32_EFER); COPY_VMCS_FIELD(VMCS_GUEST_IA32_PAT, VMCS_HOST_IA32_PAT); COPY_VMCS_FIELD(VMCS_GUEST_IA32_PERF_GLOBAL_CTRL, VMCS_HOST_IA32_PERF_GLOBAL_CTRL); COPY_VMCS_FIELD(VMCS_GUEST_SYSENTER_CS, VMCS_HOST_IA32_SYSENTER_CS); COPY_VMCS_FIELD(VMCS_GUEST_SYSENTER_ESP, VMCS_HOST_IA32_SYSENTER_ESP); COPY_VMCS_FIELD(VMCS_GUEST_SYSENTER_EIP, VMCS_HOST_IA32_SYSENTER_EIP); vmwrite(VMCS_GUEST_IA32_DEBUGCTL, 0); vmwrite(VMCS_GUEST_GDTR_BASE, vmread(VMCS_HOST_GDTR_BASE)); vmwrite(VMCS_GUEST_GDTR_LIMIT, 0xffff); vmwrite(VMCS_GUEST_IDTR_BASE, vmread(VMCS_HOST_IDTR_BASE)); vmwrite(VMCS_GUEST_IDTR_LIMIT, 0xffff); vmwrite(VMCS_LINK_POINTER, 0xffffffffffffffff); vmwrite(VMCS_GUEST_ACTIVITY_STATE, 0); vmwrite(VMCS_GUEST_INTERRUPTIBILITY_INFO, 0); vmwrite(VMCS_GUEST_PENDING_DBG_EXCEPTIONS, 0); vmwrite(VMCS_VMX_PREEMPTION_TIMER_VALUE, 0); vmwrite(VMCS_GUEST_INTR_STATUS, 0); vmwrite(VMCS_GUEST_PML_INDEX, 0); } GUEST_CODE static noinline void nested_create_vm_intel(struct api_call_1* cmd, uint64_t cpu_id) { uint64_t vm_id = cmd->arg; uint64_t vmcs_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint8_t error = 0; *(uint32_t*)vmcs_addr = rdmsr(X86_MSR_IA32_VMX_BASIC); asm volatile("vmclear %1; setna %0" : "=q"(error) : "m"(vmcs_addr) : "memory", "cc"); if (error) { guest_uexit(0xE2BAD1); return; } nested_vmptrld(cpu_id, vm_id); setup_l2_page_tables(CPU_VENDOR_INTEL, cpu_id, vm_id); init_vmcs_control_fields(cpu_id, vm_id); init_vmcs_host_state(); init_vmcs_guest_state(cpu_id, vm_id); } #define SETUP_L2_SEGMENT_SVM(VMBC_PTR,SEG_NAME,SELECTOR,BASE,LIMIT,ATTR) vmcb_write16(VMBC_PTR, VMCB_GUEST_ ##SEG_NAME ##_SEL, SELECTOR); vmcb_write16(VMBC_PTR, VMCB_GUEST_ ##SEG_NAME ##_ATTR, ATTR); vmcb_write32(VMBC_PTR, VMCB_GUEST_ ##SEG_NAME ##_LIM, LIMIT); vmcb_write64(VMBC_PTR, VMCB_GUEST_ ##SEG_NAME ##_BASE, BASE); GUEST_CODE static noinline void init_vmcb_guest_state(uint64_t cpu_id, uint64_t vm_id) { uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint64_t l2_code_addr = X86_SYZOS_ADDR_VM_CODE(cpu_id, vm_id); uint64_t l2_stack_addr = X86_SYZOS_ADDR_VM_STACK(cpu_id, vm_id); uint64_t npt_pml4_addr = X86_SYZOS_ADDR_VM_PGTABLE(cpu_id, vm_id); SETUP_L2_SEGMENT_SVM(vmcb_addr, CS, X86_SYZOS_SEL_CODE, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_CODE); SETUP_L2_SEGMENT_SVM(vmcb_addr, DS, X86_SYZOS_SEL_DATA, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_DATA); SETUP_L2_SEGMENT_SVM(vmcb_addr, ES, X86_SYZOS_SEL_DATA, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_DATA); SETUP_L2_SEGMENT_SVM(vmcb_addr, SS, X86_SYZOS_SEL_DATA, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_DATA); SETUP_L2_SEGMENT_SVM(vmcb_addr, FS, X86_SYZOS_SEL_DATA, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_DATA); SETUP_L2_SEGMENT_SVM(vmcb_addr, GS, X86_SYZOS_SEL_DATA, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_DATA); SETUP_L2_SEGMENT_SVM(vmcb_addr, TR, X86_SYZOS_SEL_TSS64, X86_SYZOS_ADDR_VAR_TSS, 0x67, VMX_AR_TSS_AVAILABLE); SETUP_L2_SEGMENT_SVM(vmcb_addr, LDTR, 0, 0, 0, SVM_ATTR_LDTR_UNUSABLE); uint64_t efer = rdmsr(X86_MSR_IA32_EFER); vmcb_write64(vmcb_addr, VMCB_GUEST_CR0, read_cr0() | X86_CR0_WP); vmcb_write64(vmcb_addr, VMCB_GUEST_CR3, read_cr3()); vmcb_write64(vmcb_addr, VMCB_GUEST_CR4, read_cr4()); vmcb_write64(vmcb_addr, VMCB_GUEST_RIP, l2_code_addr); vmcb_write64(vmcb_addr, VMCB_GUEST_RSP, l2_stack_addr + KVM_PAGE_SIZE - 8); vmcb_write64(vmcb_addr, VMCB_GUEST_RFLAGS, RFLAGS_1_BIT); vmcb_write64(vmcb_addr, VMCB_GUEST_DEBUGCTL, 0); vmcb_write64(vmcb_addr, VMCB_GUEST_DR6, 0x0); vmcb_write64(vmcb_addr, VMCB_GUEST_DR7, 0x0); vmcb_write64(vmcb_addr, VMCB_GUEST_EFER, efer & ~X86_EFER_SCE); vmcb_write64(vmcb_addr, VMCB_GUEST_PAT, rdmsr(X86_MSR_IA32_CR_PAT)); struct { uint16_t limit; uint64_t base; } __attribute__((packed)) gdtr, idtr; asm volatile("sgdt %0" : "=m"(gdtr)); asm volatile("sidt %0" : "=m"(idtr)); vmcb_write64(vmcb_addr, VMCB_GUEST_GDTR_BASE, gdtr.base); vmcb_write32(vmcb_addr, VMCB_GUEST_GDTR_LIM, gdtr.limit); vmcb_write64(vmcb_addr, VMCB_GUEST_IDTR_BASE, idtr.base); vmcb_write32(vmcb_addr, VMCB_GUEST_IDTR_LIM, idtr.limit); vmcb_write32(vmcb_addr, VMCB_CTRL_INTERCEPT_VEC3, VMCB_CTRL_INTERCEPT_VEC3_ALL); vmcb_write32(vmcb_addr, VMCB_CTRL_INTERCEPT_VEC4, VMCB_CTRL_INTERCEPT_VEC4_ALL); vmcb_write64(vmcb_addr, VMCB_CTRL_NP_ENABLE, (1 << VMCB_CTRL_NPT_ENABLE_BIT)); uint64_t npt_pointer = (npt_pml4_addr & ~0xFFF); vmcb_write64(vmcb_addr, VMCB_CTRL_N_CR3, npt_pointer); vmcb_write32(vmcb_addr, VMCB_CTRL_ASID, 1); } GUEST_CODE static noinline void nested_create_vm_amd(struct api_call_1* cmd, uint64_t cpu_id) { uint64_t vm_id = cmd->arg; uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); guest_memset((void*)vmcb_addr, 0, KVM_PAGE_SIZE); guest_memset((void*)X86_SYZOS_ADDR_VM_ARCH_SPECIFIC(cpu_id), 0, KVM_PAGE_SIZE); setup_l2_page_tables(CPU_VENDOR_AMD, cpu_id, vm_id); init_vmcb_guest_state(cpu_id, vm_id); } GUEST_CODE static noinline void guest_handle_nested_create_vm(struct api_call_1* cmd, uint64_t cpu_id) { if (get_cpu_vendor() == CPU_VENDOR_INTEL) { nested_create_vm_intel(cmd, cpu_id); } else { nested_create_vm_amd(cmd, cpu_id); } } GUEST_CODE static noinline void guest_handle_nested_load_code(struct api_call_nested_load_code* cmd, uint64_t cpu_id) { uint64_t vm_id = cmd->vm_id; uint64_t l2_code_addr = X86_SYZOS_ADDR_VM_CODE(cpu_id, vm_id); uint64_t l2_stack_addr = X86_SYZOS_ADDR_VM_STACK(cpu_id, vm_id); uint64_t l2_code_size = cmd->header.size - sizeof(struct api_call_header) - sizeof(uint64_t); if (l2_code_size > KVM_PAGE_SIZE) l2_code_size = KVM_PAGE_SIZE; guest_memcpy((void*)l2_code_addr, (void*)cmd->insns, l2_code_size); if (get_cpu_vendor() == CPU_VENDOR_INTEL) { nested_vmptrld(cpu_id, vm_id); vmwrite(VMCS_GUEST_RIP, l2_code_addr); vmwrite(VMCS_GUEST_RSP, l2_stack_addr + KVM_PAGE_SIZE - 8); } else { vmcb_write64(X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id), VMCB_GUEST_RIP, l2_code_addr); vmcb_write64(X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id), VMCB_GUEST_RSP, l2_stack_addr + KVM_PAGE_SIZE - 8); } } GUEST_CODE static noinline __optnone void guest_handle_nested_vmentry_intel(uint64_t vm_id, uint64_t cpu_id, bool is_launch) { uint64_t vmx_error_code = 0; uint8_t fail_flag = 0; nested_vmptrld(cpu_id, vm_id); if (is_launch) { asm volatile(R"( vmlaunch setc %%al setz %%bl or %%bl, %%al)" : "=a"(fail_flag) : : "rbx", "cc", "memory"); } else { asm volatile(R"( vmresume setc %%al setz %%bl or %%bl, %%al)" : "=a"(fail_flag) : : "rbx", "cc", "memory"); } asm volatile(".globl after_vmentry_label\nafter_vmentry_label:"); if (fail_flag) { vmx_error_code = vmread(VMCS_VM_INSTRUCTION_ERROR); guest_uexit(0xE2E10000 | (uint32_t)vmx_error_code); return; } } GUEST_CODE static noinline void guest_run_amd_vm(uint64_t cpu_id, uint64_t vm_id) { uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); volatile uint8_t* vmcb_ptr = (volatile uint8_t*)vmcb_addr; uint8_t fail_flag = 0; asm volatile( "mov %1, %%rax\n\t" "vmrun\n\t" "setc %0\n\t" : "=q"(fail_flag) : "m"(vmcb_addr) : "rax", "cc", "memory"); if (fail_flag) { guest_uexit(0xE2E10000 | 0xFFFF); return; } uint64_t exit_reason = vmcb_read64(vmcb_ptr, VMCB_EXIT_CODE); nested_vm_exit_handler_amd(exit_reason, cpu_id, vm_id); } GUEST_CODE static noinline void guest_handle_nested_vmlaunch(struct api_call_1* cmd, uint64_t cpu_id) { uint64_t vm_id = cmd->arg; if (get_cpu_vendor() == CPU_VENDOR_INTEL) { guest_handle_nested_vmentry_intel(vm_id, cpu_id, true); } else { guest_run_amd_vm(cpu_id, vm_id); } } GUEST_CODE static noinline void guest_handle_nested_vmresume(struct api_call_1* cmd, uint64_t cpu_id) { uint64_t vm_id = cmd->arg; if (get_cpu_vendor() == CPU_VENDOR_INTEL) { guest_handle_nested_vmentry_intel(vm_id, cpu_id, false); } else { guest_run_amd_vm(cpu_id, vm_id); } } GUEST_CODE static noinline void guest_handle_nested_intel_vmwrite_mask(struct api_call_5* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_INTEL) return; uint64_t vm_id = cmd->args[0]; nested_vmptrld(cpu_id, vm_id); uint64_t field = cmd->args[1]; uint64_t set_mask = cmd->args[2]; uint64_t unset_mask = cmd->args[3]; uint64_t flip_mask = cmd->args[4]; uint64_t current_value = vmread(field); uint64_t new_value = (current_value & ~unset_mask) | set_mask; new_value ^= flip_mask; vmwrite(field, new_value); } GUEST_CODE static noinline void guest_handle_nested_amd_vmcb_write_mask(struct api_call_5* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t vm_id = cmd->args[0]; uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint64_t offset = cmd->args[1]; uint64_t set_mask = cmd->args[2]; uint64_t unset_mask = cmd->args[3]; uint64_t flip_mask = cmd->args[4]; uint64_t current_value = vmcb_read64((volatile uint8_t*)vmcb_addr, offset); uint64_t new_value = (current_value & ~unset_mask) | set_mask; new_value ^= flip_mask; vmcb_write64(vmcb_addr, offset, new_value); } GUEST_CODE static noinline void guest_handle_nested_amd_invlpga(struct api_call_2* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t linear_addr = cmd->args[0]; uint32_t asid = (uint32_t)cmd->args[1]; asm volatile("invlpga" : : "a"(linear_addr), "c"(asid) : "memory"); } GUEST_CODE static noinline void guest_handle_nested_amd_stgi() { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; asm volatile("stgi" ::: "memory"); } GUEST_CODE static noinline void guest_handle_nested_amd_clgi() { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; asm volatile("clgi" ::: "memory"); } GUEST_CODE static noinline void guest_handle_nested_amd_inject_event(struct api_call_5* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t vm_id = cmd->args[0]; uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint64_t vector = cmd->args[1] & 0xFF; uint64_t type = cmd->args[2] & 0x7; uint64_t error_code = cmd->args[3] & 0xFFFFFFFF; uint64_t flags = cmd->args[4]; uint64_t event_inj = vector; event_inj |= (type << 8); if (flags & 2) event_inj |= (1ULL << 11); if (flags & 1) event_inj |= (1ULL << 31); event_inj |= (error_code << 32); vmcb_write64(vmcb_addr, 0x60, event_inj); } GUEST_CODE static noinline void guest_handle_nested_amd_set_intercept(struct api_call_5* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t vm_id = cmd->args[0]; uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint64_t offset = cmd->args[1]; uint64_t bit_mask = cmd->args[2]; uint64_t action = cmd->args[3]; uint32_t current = vmcb_read32(vmcb_addr, (uint16_t)offset); if (action == 1) current |= (uint32_t)bit_mask; else current &= ~((uint32_t)bit_mask); vmcb_write32(vmcb_addr, (uint16_t)offset, current); } GUEST_CODE static noinline void guest_handle_nested_amd_vmload(struct api_call_1* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t vm_id = cmd->arg; uint64_t vmcb_pa = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); asm volatile("vmload %%rax" ::"a"(vmcb_pa) : "memory"); } GUEST_CODE static noinline void guest_handle_nested_amd_vmsave(struct api_call_1* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t vm_id = cmd->arg; uint64_t vmcb_pa = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); asm volatile("vmsave %%rax" ::"a"(vmcb_pa) : "memory"); } const char kvm_asm16_cpl3[] = "\x0f\x20\xc0\x66\x83\xc8\x01\x0f\x22\xc0\xb8\xa0\x00\x0f\x00\xd8\xb8\x2b\x00\x8e\xd8\x8e\xc0\x8e\xe0\x8e\xe8\xbc\x00\x01\xc7\x06\x00\x01\x1d\xba\xc7\x06\x02\x01\x23\x00\xc7\x06\x04\x01\x00\x01\xc7\x06\x06\x01\x2b\x00\xcb"; const char kvm_asm32_paged[] = "\x0f\x20\xc0\x0d\x00\x00\x00\x80\x0f\x22\xc0"; const char kvm_asm32_vm86[] = "\x66\xb8\xb8\x00\x0f\x00\xd8\xea\x00\x00\x00\x00\xd0\x00"; const char kvm_asm32_paged_vm86[] = "\x0f\x20\xc0\x0d\x00\x00\x00\x80\x0f\x22\xc0\x66\xb8\xb8\x00\x0f\x00\xd8\xea\x00\x00\x00\x00\xd0\x00"; const char kvm_asm64_enable_long[] = "\x0f\x20\xc0\x0d\x00\x00\x00\x80\x0f\x22\xc0\xea\xde\xc0\xad\x0b\x50\x00\x48\xc7\xc0\xd8\x00\x00\x00\x0f\x00\xd8"; const char kvm_asm64_init_vm[] = 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const char kvm_asm64_vm_exit[] = "\x48\xc7\xc3\x00\x44\x00\x00\x0f\x78\xda\x48\xc7\xc3\x02\x44\x00\x00\x0f\x78\xd9\x48\xc7\xc0\x00\x64\x00\x00\x0f\x78\xc0\x48\xc7\xc3\x1e\x68\x00\x00\x0f\x78\xdb\xf4"; const char kvm_asm64_cpl3[] = "\x0f\x20\xc0\x0d\x00\x00\x00\x80\x0f\x22\xc0\xea\xde\xc0\xad\x0b\x50\x00\x48\xc7\xc0\xd8\x00\x00\x00\x0f\x00\xd8\x48\xc7\xc0\x6b\x00\x00\x00\x8e\xd8\x8e\xc0\x8e\xe0\x8e\xe8\x48\xc7\xc4\x80\x0f\x00\x00\x48\xc7\x04\x24\x1d\xba\x00\x00\x48\xc7\x44\x24\x04\x63\x00\x00\x00\x48\xc7\x44\x24\x08\x80\x0f\x00\x00\x48\xc7\x44\x24\x0c\x6b\x00\x00\x00\xcb"; #define KVM_SMI _IO(KVMIO, 0xb7) struct tss16 { uint16_t prev; uint16_t sp0; uint16_t ss0; uint16_t sp1; uint16_t ss1; uint16_t sp2; uint16_t ss2; uint16_t ip; uint16_t flags; uint16_t ax; uint16_t cx; uint16_t dx; uint16_t bx; uint16_t sp; uint16_t bp; uint16_t si; uint16_t di; uint16_t es; uint16_t cs; uint16_t ss; uint16_t ds; uint16_t ldt; } __attribute__((packed)); struct tss32 { uint16_t prev, prevh; uint32_t sp0; uint16_t ss0, ss0h; uint32_t sp1; uint16_t ss1, ss1h; uint32_t sp2; uint16_t ss2, ss2h; uint32_t cr3; uint32_t ip; uint32_t flags; uint32_t ax; uint32_t cx; uint32_t dx; uint32_t bx; uint32_t sp; uint32_t bp; uint32_t si; uint32_t di; uint16_t es, esh; uint16_t cs, csh; uint16_t ss, ssh; uint16_t ds, dsh; uint16_t fs, fsh; uint16_t gs, gsh; uint16_t ldt, ldth; uint16_t trace; uint16_t io_bitmap; } __attribute__((packed)); struct tss64 { uint32_t reserved0; uint64_t rsp[3]; uint64_t reserved1; uint64_t ist[7]; uint64_t reserved2; uint16_t reserved3; uint16_t io_bitmap; } __attribute__((packed)); static void fill_segment_descriptor(uint64_t* dt, uint64_t* lt, struct kvm_segment* seg) { uint16_t index = seg->selector >> 3; uint64_t limit = seg->g ? seg->limit >> 12 : seg->limit; uint64_t sd = (limit & 0xffff) | (seg->base & 0xffffff) << 16 | (uint64_t)seg->type << 40 | (uint64_t)seg->s << 44 | (uint64_t)seg->dpl << 45 | (uint64_t)seg->present << 47 | (limit & 0xf0000ULL) << 48 | (uint64_t)seg->avl << 52 | (uint64_t)seg->l << 53 | (uint64_t)seg->db << 54 | (uint64_t)seg->g << 55 | (seg->base & 0xff000000ULL) << 56; dt[index] = sd; lt[index] = sd; } static void fill_segment_descriptor_dword(uint64_t* dt, uint64_t* lt, struct kvm_segment* seg) { fill_segment_descriptor(dt, lt, seg); uint16_t index = seg->selector >> 3; dt[index + 1] = 0; lt[index + 1] = 0; } static void setup_syscall_msrs(int cpufd, uint16_t sel_cs, uint16_t sel_cs_cpl3) { char buf[sizeof(struct kvm_msrs) + 5 * sizeof(struct kvm_msr_entry)]; memset(buf, 0, sizeof(buf)); struct kvm_msrs* msrs = (struct kvm_msrs*)buf; struct kvm_msr_entry* entries = msrs->entries; msrs->nmsrs = 5; entries[0].index = X86_MSR_IA32_SYSENTER_CS; entries[0].data = sel_cs; entries[1].index = X86_MSR_IA32_SYSENTER_ESP; entries[1].data = X86_ADDR_STACK0; entries[2].index = X86_MSR_IA32_SYSENTER_EIP; entries[2].data = X86_ADDR_VAR_SYSEXIT; entries[3].index = X86_MSR_IA32_STAR; entries[3].data = ((uint64_t)sel_cs << 32) | ((uint64_t)sel_cs_cpl3 << 48); entries[4].index = X86_MSR_IA32_LSTAR; entries[4].data = X86_ADDR_VAR_SYSRET; ioctl(cpufd, KVM_SET_MSRS, msrs); } static void setup_32bit_idt(struct kvm_sregs* sregs, char* host_mem, uintptr_t guest_mem) { sregs->idt.base = guest_mem + X86_ADDR_VAR_IDT; sregs->idt.limit = 0x1ff; uint64_t* idt = (uint64_t*)(host_mem + sregs->idt.base); for (int i = 0; i < 32; i++) { struct kvm_segment gate; gate.selector = i << 3; switch (i % 6) { case 0: gate.type = 6; gate.base = X86_SEL_CS16; break; case 1: gate.type = 7; gate.base = X86_SEL_CS16; break; case 2: gate.type = 3; gate.base = X86_SEL_TGATE16; break; case 3: gate.type = 14; gate.base = X86_SEL_CS32; break; case 4: gate.type = 15; gate.base = X86_SEL_CS32; break; case 5: gate.type = 11; gate.base = X86_SEL_TGATE32; break; } gate.limit = guest_mem + X86_ADDR_VAR_USER_CODE2; gate.present = 1; gate.dpl = 0; gate.s = 0; gate.g = 0; gate.db = 0; gate.l = 0; gate.avl = 0; fill_segment_descriptor(idt, idt, &gate); } } static void setup_64bit_idt(struct kvm_sregs* sregs, char* host_mem, uintptr_t guest_mem) { sregs->idt.base = guest_mem + X86_ADDR_VAR_IDT; sregs->idt.limit = 0x1ff; uint64_t* idt = (uint64_t*)(host_mem + sregs->idt.base); for (int i = 0; i < 32; i++) { struct kvm_segment gate; gate.selector = (i * 2) << 3; gate.type = (i & 1) ? 14 : 15; gate.base = X86_SEL_CS64; gate.limit = guest_mem + X86_ADDR_VAR_USER_CODE2; gate.present = 1; gate.dpl = 0; gate.s = 0; gate.g = 0; gate.db = 0; gate.l = 0; gate.avl = 0; fill_segment_descriptor_dword(idt, idt, &gate); } } #define MEM_REGION_FLAG_USER_CODE (1 << 0) #define MEM_REGION_FLAG_DIRTY_LOG (1 << 1) #define MEM_REGION_FLAG_READONLY (1 << 2) #define MEM_REGION_FLAG_EXECUTOR_CODE (1 << 3) #define MEM_REGION_FLAG_GPA0 (1 << 5) #define MEM_REGION_FLAG_NO_HOST_MEM (1 << 6) struct mem_region { uint64_t gpa; int pages; uint32_t flags; }; static const struct mem_region syzos_mem_regions[] = { {X86_SYZOS_ADDR_ZERO, 48, MEM_REGION_FLAG_GPA0}, {X86_SYZOS_ADDR_SMRAM, 10, 0}, {X86_SYZOS_ADDR_EXIT, 1, MEM_REGION_FLAG_NO_HOST_MEM}, {X86_SYZOS_ADDR_DIRTY_PAGES, 2, MEM_REGION_FLAG_DIRTY_LOG}, {X86_SYZOS_ADDR_USER_CODE, KVM_MAX_VCPU, MEM_REGION_FLAG_READONLY | MEM_REGION_FLAG_USER_CODE}, {SYZOS_ADDR_EXECUTOR_CODE, 4, MEM_REGION_FLAG_READONLY | MEM_REGION_FLAG_EXECUTOR_CODE}, {X86_SYZOS_ADDR_SCRATCH_CODE, 1, 0}, {X86_SYZOS_ADDR_STACK_BOTTOM, 1, 0}, {X86_SYZOS_PER_VCPU_REGIONS_BASE, (KVM_MAX_VCPU * X86_SYZOS_L1_VCPU_REGION_SIZE) / KVM_PAGE_SIZE, 0}, {X86_SYZOS_ADDR_IOAPIC, 1, 0}, }; struct kvm_syz_vm { int vmfd; int next_cpu_id; void* host_mem; size_t total_pages; void* user_text; void* gpa0_mem; }; #define X86_NUM_IDT_ENTRIES 256 static void syzos_setup_idt(struct kvm_syz_vm* vm, struct kvm_sregs* sregs) { sregs->idt.base = X86_SYZOS_ADDR_VAR_IDT; sregs->idt.limit = (X86_NUM_IDT_ENTRIES * sizeof(struct idt_entry_64)) - 1; volatile struct idt_entry_64* idt = (volatile struct idt_entry_64*)((uint64_t)vm->host_mem + sregs->idt.base); uint64_t handler_addr = executor_fn_guest_addr(dummy_null_handler); for (int i = 0; i < X86_NUM_IDT_ENTRIES; i++) { idt[i].offset_low = (uint16_t)(handler_addr & 0xFFFF); idt[i].selector = X86_SYZOS_SEL_CODE; idt[i].ist = 0; idt[i].type_attr = 0x8E; idt[i].offset_mid = (uint16_t)((handler_addr >> 16) & 0xFFFF); idt[i].offset_high = (uint32_t)((handler_addr >> 32) & 0xFFFFFFFF); idt[i].reserved = 0; } } struct kvm_text { uintptr_t typ; const void* text; uintptr_t size; }; struct kvm_opt { uint64_t typ; uint64_t val; }; #define PAGE_MASK GENMASK_ULL(51, 12) typedef struct { uint64_t next_page; uint64_t last_page; } page_alloc_t; static uint64_t pg_alloc(page_alloc_t* alloc) { if (alloc->next_page >= alloc->last_page) exit(1); uint64_t page = alloc->next_page; alloc->next_page += KVM_PAGE_SIZE; return page; } static void map_4k_page(uint64_t host_mem, page_alloc_t* alloc, uint64_t gpa) { uint64_t* pml4 = (uint64_t*)(host_mem + X86_SYZOS_ADDR_PML4); uint64_t pml4_idx = (gpa >> 39) & 0x1FF; if (pml4[pml4_idx] == 0) pml4[pml4_idx] = X86_PDE64_PRESENT | X86_PDE64_RW | pg_alloc(alloc); uint64_t* pdpt = (uint64_t*)(host_mem + (pml4[pml4_idx] & PAGE_MASK)); uint64_t pdpt_idx = (gpa >> 30) & 0x1FF; if (pdpt[pdpt_idx] == 0) pdpt[pdpt_idx] = X86_PDE64_PRESENT | X86_PDE64_RW | pg_alloc(alloc); uint64_t* pd = (uint64_t*)(host_mem + (pdpt[pdpt_idx] & PAGE_MASK)); uint64_t pd_idx = (gpa >> 21) & 0x1FF; if (pd[pd_idx] == 0) pd[pd_idx] = X86_PDE64_PRESENT | X86_PDE64_RW | pg_alloc(alloc); uint64_t* pt = (uint64_t*)(host_mem + (pd[pd_idx] & PAGE_MASK)); uint64_t pt_idx = (gpa >> 12) & 0x1FF; pt[pt_idx] = (gpa & PAGE_MASK) | X86_PDE64_PRESENT | X86_PDE64_RW; } static int map_4k_region(uint64_t host_mem, page_alloc_t* alloc, uint64_t gpa_start, int num_pages) { for (int i = 0; i < num_pages; i++) map_4k_page(host_mem, alloc, gpa_start + (i * KVM_PAGE_SIZE)); return num_pages; } static void setup_pg_table(struct kvm_syz_vm* vm) { int total = vm->total_pages; uint64_t host_mem = (uint64_t)vm->gpa0_mem; page_alloc_t alloc = {.next_page = X86_SYZOS_ADDR_PT_POOL, .last_page = X86_SYZOS_ADDR_PT_POOL + 32 * KVM_PAGE_SIZE}; for (uint64_t i = 0; i < (alloc.last_page - alloc.next_page); i += KVM_PAGE_SIZE) memset((void*)(host_mem + alloc.next_page + i), 0, KVM_PAGE_SIZE); for (size_t i = 0; i < sizeof(syzos_mem_regions) / sizeof(syzos_mem_regions[0]); i++) total -= map_4k_region(host_mem, &alloc, syzos_mem_regions[i].gpa, syzos_mem_regions[i].pages); map_4k_region(host_mem, &alloc, X86_SYZOS_ADDR_UNUSED, total); } struct gdt_entry { uint16_t limit_low; uint16_t base_low; uint8_t base_mid; uint8_t access; uint8_t limit_high_and_flags; uint8_t base_high; } __attribute__((packed)); static void setup_gdt_64(struct gdt_entry* gdt) { gdt[0] = (struct gdt_entry){0}; gdt[X86_SYZOS_SEL_CODE >> 3] = (struct gdt_entry){ .limit_low = 0xFFFF, .base_low = 0, .base_mid = 0, .access = 0x9A, .limit_high_and_flags = 0xAF, .base_high = 0}; gdt[X86_SYZOS_SEL_DATA >> 3] = (struct gdt_entry){ .limit_low = 0xFFFF, .base_low = (uint16_t)(X86_SYZOS_ADDR_VAR_TSS & 0xFFFF), .base_mid = (uint8_t)((X86_SYZOS_ADDR_VAR_TSS >> 16) & 0xFF), .access = 0x92, .limit_high_and_flags = 0xCF, .base_high = (uint8_t)((X86_SYZOS_ADDR_VAR_TSS >> 24) & 0xFF)}; gdt[X86_SYZOS_SEL_TSS64 >> 3] = (struct gdt_entry){ .limit_low = 0x67, .base_low = 0, .base_mid = 0, .access = 0x89, .limit_high_and_flags = 0x00, .base_high = 0}; } static void setup_gdt_ldt_pg(struct kvm_syz_vm* vm, int cpufd) { struct kvm_sregs sregs; ioctl(cpufd, KVM_GET_SREGS, &sregs); sregs.gdt.base = X86_SYZOS_ADDR_GDT; sregs.gdt.limit = 5 * sizeof(struct gdt_entry) - 1; struct gdt_entry* gdt = (struct gdt_entry*)((uint64_t)vm->host_mem + sregs.gdt.base); struct kvm_segment seg_cs64; memset(&seg_cs64, 0, sizeof(seg_cs64)); seg_cs64.selector = X86_SYZOS_SEL_CODE; seg_cs64.type = 11; seg_cs64.base = 0; seg_cs64.limit = 0xFFFFFFFFu; seg_cs64.present = 1; seg_cs64.s = 1; seg_cs64.g = 1; seg_cs64.l = 1; sregs.cs = seg_cs64; struct kvm_segment seg_ds64; memset(&seg_ds64, 0, sizeof(struct kvm_segment)); seg_ds64.selector = X86_SYZOS_SEL_DATA; seg_ds64.type = 3; seg_ds64.limit = 0xFFFFFFFFu; seg_ds64.present = 1; seg_ds64.s = 1; seg_ds64.g = 1; seg_ds64.db = 1; sregs.ds = seg_ds64; sregs.es = seg_ds64; sregs.fs = seg_ds64; sregs.gs = seg_ds64; sregs.ss = seg_ds64; struct kvm_segment seg_tr; memset(&seg_tr, 0, sizeof(seg_tr)); seg_tr.selector = X86_SYZOS_SEL_TSS64; seg_tr.type = 11; seg_tr.base = X86_SYZOS_ADDR_VAR_TSS; seg_tr.limit = 0x67; seg_tr.present = 1; seg_tr.s = 0; sregs.tr = seg_tr; volatile uint8_t* l1_tss = (volatile uint8_t*)((uint64_t)vm->host_mem + X86_SYZOS_ADDR_VAR_TSS); memset((void*)l1_tss, 0, 104); *(volatile uint64_t*)(l1_tss + 4) = X86_SYZOS_ADDR_STACK0; setup_gdt_64(gdt); syzos_setup_idt(vm, &sregs); setup_pg_table(vm); sregs.cr0 = X86_CR0_PE | X86_CR0_NE | X86_CR0_PG; sregs.cr4 |= X86_CR4_PAE | X86_CR4_OSFXSR; sregs.efer |= (X86_EFER_LME | X86_EFER_LMA | X86_EFER_NXE); sregs.cr3 = X86_ADDR_PML4; ioctl(cpufd, KVM_SET_SREGS, &sregs); } static void setup_cpuid(int cpufd) { int kvmfd = open("/dev/kvm", O_RDWR); char buf[sizeof(struct kvm_cpuid2) + 128 * sizeof(struct kvm_cpuid_entry2)]; memset(buf, 0, sizeof(buf)); struct kvm_cpuid2* cpuid = (struct kvm_cpuid2*)buf; cpuid->nent = 128; ioctl(kvmfd, KVM_GET_SUPPORTED_CPUID, cpuid); ioctl(cpufd, KVM_SET_CPUID2, cpuid); close(kvmfd); } #define KVM_SETUP_PAGING (1 << 0) #define KVM_SETUP_PAE (1 << 1) #define KVM_SETUP_PROTECTED (1 << 2) #define KVM_SETUP_CPL3 (1 << 3) #define KVM_SETUP_VIRT86 (1 << 4) #define KVM_SETUP_SMM (1 << 5) #define KVM_SETUP_VM (1 << 6) static volatile long syz_kvm_setup_cpu(volatile long a0, volatile long a1, volatile long a2, volatile long a3, volatile long a4, volatile long a5, volatile long a6, volatile long a7) { const int vmfd = a0; const int cpufd = a1; char* const host_mem = (char*)a2; const struct kvm_text* const text_array_ptr = (struct kvm_text*)a3; const uintptr_t text_count = a4; const uintptr_t flags = a5; const struct kvm_opt* const opt_array_ptr = (struct kvm_opt*)a6; uintptr_t opt_count = a7; const uintptr_t page_size = 4 << 10; const uintptr_t ioapic_page = 10; const uintptr_t guest_mem_size = 24 * page_size; const uintptr_t guest_mem = 0; (void)text_count; int text_type = text_array_ptr[0].typ; const void* text = text_array_ptr[0].text; uintptr_t text_size = text_array_ptr[0].size; for (uintptr_t i = 0; i < guest_mem_size / page_size; i++) { struct kvm_userspace_memory_region memreg; memreg.slot = i; memreg.flags = 0; memreg.guest_phys_addr = guest_mem + i * page_size; if (i == ioapic_page) memreg.guest_phys_addr = 0xfec00000; memreg.memory_size = page_size; memreg.userspace_addr = (uintptr_t)host_mem + i * page_size; ioctl(vmfd, KVM_SET_USER_MEMORY_REGION, &memreg); } struct kvm_userspace_memory_region memreg; memreg.slot = 1 + (1 << 16); memreg.flags = 0; memreg.guest_phys_addr = 0x30000; memreg.memory_size = 64 << 10; memreg.userspace_addr = (uintptr_t)host_mem; ioctl(vmfd, KVM_SET_USER_MEMORY_REGION, &memreg); struct kvm_sregs sregs; if (ioctl(cpufd, KVM_GET_SREGS, &sregs)) return -1; struct kvm_regs regs; memset(®s, 0, sizeof(regs)); regs.rip = guest_mem + X86_ADDR_TEXT; regs.rsp = X86_ADDR_STACK0; sregs.gdt.base = guest_mem + X86_ADDR_GDT; sregs.gdt.limit = 256 * sizeof(uint64_t) - 1; uint64_t* gdt = (uint64_t*)(host_mem + sregs.gdt.base); struct kvm_segment seg_ldt; memset(&seg_ldt, 0, sizeof(seg_ldt)); seg_ldt.selector = X86_SEL_LDT; seg_ldt.type = 2; seg_ldt.base = guest_mem + X86_ADDR_LDT; seg_ldt.limit = 256 * sizeof(uint64_t) - 1; seg_ldt.present = 1; seg_ldt.dpl = 0; seg_ldt.s = 0; seg_ldt.g = 0; seg_ldt.db = 1; seg_ldt.l = 0; sregs.ldt = seg_ldt; uint64_t* ldt = (uint64_t*)(host_mem + sregs.ldt.base); struct kvm_segment seg_cs16; memset(&seg_cs16, 0, sizeof(seg_cs16)); seg_cs16.selector = X86_SEL_CS16; seg_cs16.type = 11; seg_cs16.base = 0; seg_cs16.limit = 0xfffff; seg_cs16.present = 1; seg_cs16.dpl = 0; seg_cs16.s = 1; seg_cs16.g = 0; seg_cs16.db = 0; seg_cs16.l = 0; struct kvm_segment seg_ds16 = seg_cs16; seg_ds16.selector = X86_SEL_DS16; seg_ds16.type = 3; struct kvm_segment seg_cs16_cpl3 = seg_cs16; seg_cs16_cpl3.selector = X86_SEL_CS16_CPL3; seg_cs16_cpl3.dpl = 3; struct kvm_segment seg_ds16_cpl3 = seg_ds16; seg_ds16_cpl3.selector = X86_SEL_DS16_CPL3; seg_ds16_cpl3.dpl = 3; struct kvm_segment seg_cs32 = seg_cs16; seg_cs32.selector = X86_SEL_CS32; seg_cs32.db = 1; struct kvm_segment seg_ds32 = seg_ds16; seg_ds32.selector = X86_SEL_DS32; seg_ds32.db = 1; struct kvm_segment seg_cs32_cpl3 = seg_cs32; seg_cs32_cpl3.selector = X86_SEL_CS32_CPL3; seg_cs32_cpl3.dpl = 3; struct kvm_segment seg_ds32_cpl3 = seg_ds32; seg_ds32_cpl3.selector = X86_SEL_DS32_CPL3; seg_ds32_cpl3.dpl = 3; struct kvm_segment seg_cs64 = seg_cs16; seg_cs64.selector = X86_SEL_CS64; seg_cs64.l = 1; struct kvm_segment seg_ds64 = seg_ds32; seg_ds64.selector = X86_SEL_DS64; struct kvm_segment seg_cs64_cpl3 = seg_cs64; seg_cs64_cpl3.selector = X86_SEL_CS64_CPL3; seg_cs64_cpl3.dpl = 3; struct kvm_segment seg_ds64_cpl3 = seg_ds64; seg_ds64_cpl3.selector = X86_SEL_DS64_CPL3; seg_ds64_cpl3.dpl = 3; struct kvm_segment seg_tss32; memset(&seg_tss32, 0, sizeof(seg_tss32)); seg_tss32.selector = X86_SEL_TSS32; seg_tss32.type = 9; seg_tss32.base = X86_ADDR_VAR_TSS32; seg_tss32.limit = 0x1ff; seg_tss32.present = 1; seg_tss32.dpl = 0; seg_tss32.s = 0; seg_tss32.g = 0; seg_tss32.db = 0; seg_tss32.l = 0; struct kvm_segment seg_tss32_2 = seg_tss32; seg_tss32_2.selector = X86_SEL_TSS32_2; seg_tss32_2.base = X86_ADDR_VAR_TSS32_2; struct kvm_segment seg_tss32_cpl3 = seg_tss32; seg_tss32_cpl3.selector = X86_SEL_TSS32_CPL3; seg_tss32_cpl3.base = X86_ADDR_VAR_TSS32_CPL3; struct kvm_segment seg_tss32_vm86 = seg_tss32; seg_tss32_vm86.selector = X86_SEL_TSS32_VM86; seg_tss32_vm86.base = X86_ADDR_VAR_TSS32_VM86; struct kvm_segment seg_tss16 = seg_tss32; seg_tss16.selector = X86_SEL_TSS16; seg_tss16.base = X86_ADDR_VAR_TSS16; seg_tss16.limit = 0xff; seg_tss16.type = 1; struct kvm_segment seg_tss16_2 = seg_tss16; seg_tss16_2.selector = X86_SEL_TSS16_2; seg_tss16_2.base = X86_ADDR_VAR_TSS16_2; seg_tss16_2.dpl = 0; struct kvm_segment seg_tss16_cpl3 = seg_tss16; seg_tss16_cpl3.selector = X86_SEL_TSS16_CPL3; seg_tss16_cpl3.base = X86_ADDR_VAR_TSS16_CPL3; seg_tss16_cpl3.dpl = 3; struct kvm_segment seg_tss64 = seg_tss32; seg_tss64.selector = X86_SEL_TSS64; seg_tss64.base = X86_ADDR_VAR_TSS64; seg_tss64.limit = 0x1ff; struct kvm_segment seg_tss64_cpl3 = seg_tss64; seg_tss64_cpl3.selector = X86_SEL_TSS64_CPL3; seg_tss64_cpl3.base = X86_ADDR_VAR_TSS64_CPL3; seg_tss64_cpl3.dpl = 3; struct kvm_segment seg_cgate16; memset(&seg_cgate16, 0, sizeof(seg_cgate16)); seg_cgate16.selector = X86_SEL_CGATE16; seg_cgate16.type = 4; seg_cgate16.base = X86_SEL_CS16 | (2 << 16); seg_cgate16.limit = X86_ADDR_VAR_USER_CODE2; seg_cgate16.present = 1; seg_cgate16.dpl = 0; seg_cgate16.s = 0; seg_cgate16.g = 0; seg_cgate16.db = 0; seg_cgate16.l = 0; seg_cgate16.avl = 0; struct kvm_segment seg_tgate16 = seg_cgate16; seg_tgate16.selector = X86_SEL_TGATE16; seg_tgate16.type = 3; seg_cgate16.base = X86_SEL_TSS16_2; seg_tgate16.limit = 0; struct kvm_segment seg_cgate32 = seg_cgate16; seg_cgate32.selector = X86_SEL_CGATE32; seg_cgate32.type = 12; seg_cgate32.base = X86_SEL_CS32 | (2 << 16); struct kvm_segment seg_tgate32 = seg_cgate32; seg_tgate32.selector = X86_SEL_TGATE32; seg_tgate32.type = 11; seg_tgate32.base = X86_SEL_TSS32_2; seg_tgate32.limit = 0; struct kvm_segment seg_cgate64 = seg_cgate16; seg_cgate64.selector = X86_SEL_CGATE64; seg_cgate64.type = 12; seg_cgate64.base = X86_SEL_CS64; int kvmfd = open("/dev/kvm", O_RDWR); char buf[sizeof(struct kvm_cpuid2) + 128 * sizeof(struct kvm_cpuid_entry2)]; memset(buf, 0, sizeof(buf)); struct kvm_cpuid2* cpuid = (struct kvm_cpuid2*)buf; cpuid->nent = 128; ioctl(kvmfd, KVM_GET_SUPPORTED_CPUID, cpuid); ioctl(cpufd, KVM_SET_CPUID2, cpuid); close(kvmfd); const char* text_prefix = 0; int text_prefix_size = 0; char* host_text = host_mem + X86_ADDR_TEXT; if (text_type == 8) { if (flags & KVM_SETUP_SMM) { if (flags & KVM_SETUP_PROTECTED) { sregs.cs = seg_cs16; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds16; sregs.cr0 |= X86_CR0_PE; } else { sregs.cs.selector = 0; sregs.cs.base = 0; } *(host_mem + X86_ADDR_TEXT) = 0xf4; host_text = host_mem + 0x8000; ioctl(cpufd, KVM_SMI, 0); } else if (flags & KVM_SETUP_VIRT86) { sregs.cs = seg_cs32; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32; sregs.cr0 |= X86_CR0_PE; sregs.efer |= X86_EFER_SCE; setup_syscall_msrs(cpufd, X86_SEL_CS32, X86_SEL_CS32_CPL3); setup_32bit_idt(&sregs, host_mem, guest_mem); if (flags & KVM_SETUP_PAGING) { uint64_t pd_addr = guest_mem + X86_ADDR_PD; uint64_t* pd = (uint64_t*)(host_mem + X86_ADDR_PD); pd[0] = X86_PDE32_PRESENT | X86_PDE32_RW | X86_PDE32_USER | X86_PDE32_PS; sregs.cr3 = pd_addr; sregs.cr4 |= X86_CR4_PSE; text_prefix = kvm_asm32_paged_vm86; text_prefix_size = sizeof(kvm_asm32_paged_vm86) - 1; } else { text_prefix = kvm_asm32_vm86; text_prefix_size = sizeof(kvm_asm32_vm86) - 1; } } else { sregs.cs.selector = 0; sregs.cs.base = 0; } } else if (text_type == 16) { if (flags & KVM_SETUP_CPL3) { sregs.cs = seg_cs16; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds16; text_prefix = kvm_asm16_cpl3; text_prefix_size = sizeof(kvm_asm16_cpl3) - 1; } else { sregs.cr0 |= X86_CR0_PE; sregs.cs = seg_cs16; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds16; } } else if (text_type == 32) { sregs.cr0 |= X86_CR0_PE; sregs.efer |= X86_EFER_SCE; setup_syscall_msrs(cpufd, X86_SEL_CS32, X86_SEL_CS32_CPL3); setup_32bit_idt(&sregs, host_mem, guest_mem); if (flags & KVM_SETUP_SMM) { sregs.cs = seg_cs32; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32; *(host_mem + X86_ADDR_TEXT) = 0xf4; host_text = host_mem + 0x8000; ioctl(cpufd, KVM_SMI, 0); } else if (flags & KVM_SETUP_PAGING) { sregs.cs = seg_cs32; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32; uint64_t pd_addr = guest_mem + X86_ADDR_PD; uint64_t* pd = (uint64_t*)(host_mem + X86_ADDR_PD); pd[0] = X86_PDE32_PRESENT | X86_PDE32_RW | X86_PDE32_USER | X86_PDE32_PS; sregs.cr3 = pd_addr; sregs.cr4 |= X86_CR4_PSE; text_prefix = kvm_asm32_paged; text_prefix_size = sizeof(kvm_asm32_paged) - 1; } else if (flags & KVM_SETUP_CPL3) { sregs.cs = seg_cs32_cpl3; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32_cpl3; } else { sregs.cs = seg_cs32; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32; } } else { sregs.efer |= X86_EFER_LME | X86_EFER_SCE; sregs.cr0 |= X86_CR0_PE; setup_syscall_msrs(cpufd, X86_SEL_CS64, X86_SEL_CS64_CPL3); setup_64bit_idt(&sregs, host_mem, guest_mem); sregs.cs = seg_cs32; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32; uint64_t pml4_addr = guest_mem + X86_ADDR_PML4; uint64_t* pml4 = (uint64_t*)(host_mem + X86_ADDR_PML4); uint64_t pdpt_addr = guest_mem + X86_ADDR_PDP; uint64_t* pdpt = (uint64_t*)(host_mem + X86_ADDR_PDP); uint64_t pd_addr = guest_mem + X86_ADDR_PD; uint64_t* pd = (uint64_t*)(host_mem + X86_ADDR_PD); pml4[0] = X86_PDE64_PRESENT | X86_PDE64_RW | X86_PDE64_USER | pdpt_addr; pdpt[0] = X86_PDE64_PRESENT | X86_PDE64_RW | X86_PDE64_USER | pd_addr; pd[0] = X86_PDE64_PRESENT | X86_PDE64_RW | X86_PDE64_USER | X86_PDE64_PS; sregs.cr3 = pml4_addr; sregs.cr4 |= X86_CR4_PAE; if (flags & KVM_SETUP_VM) { sregs.cr0 |= X86_CR0_NE; *((uint64_t*)(host_mem + X86_ADDR_VAR_VMXON_PTR)) = X86_ADDR_VAR_VMXON; *((uint64_t*)(host_mem + X86_ADDR_VAR_VMCS_PTR)) = X86_ADDR_VAR_VMCS; memcpy(host_mem + X86_ADDR_VAR_VMEXIT_CODE, kvm_asm64_vm_exit, sizeof(kvm_asm64_vm_exit) - 1); *((uint64_t*)(host_mem + X86_ADDR_VAR_VMEXIT_PTR)) = X86_ADDR_VAR_VMEXIT_CODE; text_prefix = kvm_asm64_init_vm; text_prefix_size = sizeof(kvm_asm64_init_vm) - 1; } else if (flags & KVM_SETUP_CPL3) { text_prefix = kvm_asm64_cpl3; text_prefix_size = sizeof(kvm_asm64_cpl3) - 1; } else { text_prefix = kvm_asm64_enable_long; text_prefix_size = sizeof(kvm_asm64_enable_long) - 1; } } struct tss16 tss16; memset(&tss16, 0, sizeof(tss16)); tss16.ss0 = tss16.ss1 = tss16.ss2 = X86_SEL_DS16; tss16.sp0 = tss16.sp1 = tss16.sp2 = X86_ADDR_STACK0; tss16.ip = X86_ADDR_VAR_USER_CODE2; tss16.flags = (1 << 1); tss16.cs = X86_SEL_CS16; tss16.es = tss16.ds = tss16.ss = X86_SEL_DS16; tss16.ldt = X86_SEL_LDT; struct tss16* tss16_addr = (struct tss16*)(host_mem + seg_tss16_2.base); memcpy(tss16_addr, &tss16, sizeof(tss16)); memset(&tss16, 0, sizeof(tss16)); tss16.ss0 = tss16.ss1 = tss16.ss2 = X86_SEL_DS16; tss16.sp0 = tss16.sp1 = tss16.sp2 = X86_ADDR_STACK0; tss16.ip = X86_ADDR_VAR_USER_CODE2; tss16.flags = (1 << 1); tss16.cs = X86_SEL_CS16_CPL3; tss16.es = tss16.ds = tss16.ss = X86_SEL_DS16_CPL3; tss16.ldt = X86_SEL_LDT; struct tss16* tss16_cpl3_addr = (struct tss16*)(host_mem + seg_tss16_cpl3.base); memcpy(tss16_cpl3_addr, &tss16, sizeof(tss16)); struct tss32 tss32; memset(&tss32, 0, sizeof(tss32)); tss32.ss0 = tss32.ss1 = tss32.ss2 = X86_SEL_DS32; tss32.sp0 = tss32.sp1 = tss32.sp2 = X86_ADDR_STACK0; tss32.ip = X86_ADDR_VAR_USER_CODE; tss32.flags = (1 << 1) | (1 << 17); tss32.ldt = X86_SEL_LDT; tss32.cr3 = sregs.cr3; tss32.io_bitmap = offsetof(struct tss32, io_bitmap); struct tss32* tss32_addr = (struct tss32*)(host_mem + seg_tss32_vm86.base); memcpy(tss32_addr, &tss32, sizeof(tss32)); memset(&tss32, 0, sizeof(tss32)); tss32.ss0 = tss32.ss1 = tss32.ss2 = X86_SEL_DS32; tss32.sp0 = tss32.sp1 = tss32.sp2 = X86_ADDR_STACK0; tss32.ip = X86_ADDR_VAR_USER_CODE; tss32.flags = (1 << 1); tss32.cr3 = sregs.cr3; tss32.es = tss32.ds = tss32.ss = tss32.gs = tss32.fs = X86_SEL_DS32; tss32.cs = X86_SEL_CS32; tss32.ldt = X86_SEL_LDT; tss32.cr3 = sregs.cr3; tss32.io_bitmap = offsetof(struct tss32, io_bitmap); struct tss32* tss32_cpl3_addr = (struct tss32*)(host_mem + seg_tss32_2.base); memcpy(tss32_cpl3_addr, &tss32, sizeof(tss32)); struct tss64 tss64; memset(&tss64, 0, sizeof(tss64)); tss64.rsp[0] = X86_ADDR_STACK0; tss64.rsp[1] = X86_ADDR_STACK0; tss64.rsp[2] = X86_ADDR_STACK0; tss64.io_bitmap = offsetof(struct tss64, io_bitmap); struct tss64* tss64_addr = (struct tss64*)(host_mem + seg_tss64.base); memcpy(tss64_addr, &tss64, sizeof(tss64)); memset(&tss64, 0, sizeof(tss64)); tss64.rsp[0] = X86_ADDR_STACK0; tss64.rsp[1] = X86_ADDR_STACK0; tss64.rsp[2] = X86_ADDR_STACK0; tss64.io_bitmap = offsetof(struct tss64, io_bitmap); struct tss64* tss64_cpl3_addr = (struct tss64*)(host_mem + seg_tss64_cpl3.base); memcpy(tss64_cpl3_addr, &tss64, sizeof(tss64)); if (text_size > 1000) text_size = 1000; if (text_prefix) { memcpy(host_text, text_prefix, text_prefix_size); void* patch = memmem(host_text, text_prefix_size, "\xde\xc0\xad\x0b", 4); if (patch) *((uint32_t*)patch) = guest_mem + X86_ADDR_TEXT + ((char*)patch - host_text) + 6; uint16_t magic = X86_PREFIX_SIZE; patch = memmem(host_text, text_prefix_size, &magic, sizeof(magic)); if (patch) *((uint16_t*)patch) = guest_mem + X86_ADDR_TEXT + text_prefix_size; } memcpy((void*)(host_text + text_prefix_size), text, text_size); *(host_text + text_prefix_size + text_size) = 0xf4; memcpy(host_mem + X86_ADDR_VAR_USER_CODE, text, text_size); *(host_mem + X86_ADDR_VAR_USER_CODE + text_size) = 0xf4; *(host_mem + X86_ADDR_VAR_HLT) = 0xf4; memcpy(host_mem + X86_ADDR_VAR_SYSRET, "\x0f\x07\xf4", 3); memcpy(host_mem + X86_ADDR_VAR_SYSEXIT, "\x0f\x35\xf4", 3); *(uint64_t*)(host_mem + X86_ADDR_VAR_VMWRITE_FLD) = 0; *(uint64_t*)(host_mem + X86_ADDR_VAR_VMWRITE_VAL) = 0; if (opt_count > 2) opt_count = 2; for (uintptr_t i = 0; i < opt_count; i++) { uint64_t typ = opt_array_ptr[i].typ; uint64_t val = opt_array_ptr[i].val; switch (typ % 9) { case 0: sregs.cr0 ^= val & (X86_CR0_MP | X86_CR0_EM | X86_CR0_ET | X86_CR0_NE | X86_CR0_WP | X86_CR0_AM | X86_CR0_NW | X86_CR0_CD); break; case 1: sregs.cr4 ^= val & (X86_CR4_VME | X86_CR4_PVI | X86_CR4_TSD | X86_CR4_DE | X86_CR4_MCE | X86_CR4_PGE | X86_CR4_PCE | X86_CR4_OSFXSR | X86_CR4_OSXMMEXCPT | X86_CR4_UMIP | X86_CR4_VMXE | X86_CR4_SMXE | X86_CR4_FSGSBASE | X86_CR4_PCIDE | X86_CR4_OSXSAVE | X86_CR4_SMEP | X86_CR4_SMAP | X86_CR4_PKE); break; case 2: sregs.efer ^= val & (X86_EFER_SCE | X86_EFER_NXE | X86_EFER_SVME | X86_EFER_LMSLE | X86_EFER_FFXSR | X86_EFER_TCE); break; case 3: val &= ((1 << 8) | (1 << 9) | (1 << 10) | (1 << 12) | (1 << 13) | (1 << 14) | (1 << 15) | (1 << 18) | (1 << 19) | (1 << 20) | (1 << 21)); regs.rflags ^= val; tss16_addr->flags ^= val; tss16_cpl3_addr->flags ^= val; tss32_addr->flags ^= val; tss32_cpl3_addr->flags ^= val; break; case 4: seg_cs16.type = val & 0xf; seg_cs32.type = val & 0xf; seg_cs64.type = val & 0xf; break; case 5: seg_cs16_cpl3.type = val & 0xf; seg_cs32_cpl3.type = val & 0xf; seg_cs64_cpl3.type = val & 0xf; break; case 6: seg_ds16.type = val & 0xf; seg_ds32.type = val & 0xf; seg_ds64.type = val & 0xf; break; case 7: seg_ds16_cpl3.type = val & 0xf; seg_ds32_cpl3.type = val & 0xf; seg_ds64_cpl3.type = val & 0xf; break; case 8: *(uint64_t*)(host_mem + X86_ADDR_VAR_VMWRITE_FLD) = (val & 0xffff); *(uint64_t*)(host_mem + X86_ADDR_VAR_VMWRITE_VAL) = (val >> 16); break; default: exit(1); } } regs.rflags |= 2; fill_segment_descriptor(gdt, ldt, &seg_ldt); fill_segment_descriptor(gdt, ldt, &seg_cs16); fill_segment_descriptor(gdt, ldt, &seg_ds16); fill_segment_descriptor(gdt, ldt, &seg_cs16_cpl3); fill_segment_descriptor(gdt, ldt, &seg_ds16_cpl3); fill_segment_descriptor(gdt, ldt, &seg_cs32); fill_segment_descriptor(gdt, ldt, &seg_ds32); fill_segment_descriptor(gdt, ldt, &seg_cs32_cpl3); fill_segment_descriptor(gdt, ldt, &seg_ds32_cpl3); fill_segment_descriptor(gdt, ldt, &seg_cs64); fill_segment_descriptor(gdt, ldt, &seg_ds64); fill_segment_descriptor(gdt, ldt, &seg_cs64_cpl3); fill_segment_descriptor(gdt, ldt, &seg_ds64_cpl3); fill_segment_descriptor(gdt, ldt, &seg_tss32); fill_segment_descriptor(gdt, ldt, &seg_tss32_2); fill_segment_descriptor(gdt, ldt, &seg_tss32_cpl3); fill_segment_descriptor(gdt, ldt, &seg_tss32_vm86); fill_segment_descriptor(gdt, ldt, &seg_tss16); fill_segment_descriptor(gdt, ldt, &seg_tss16_2); fill_segment_descriptor(gdt, ldt, &seg_tss16_cpl3); fill_segment_descriptor_dword(gdt, ldt, &seg_tss64); fill_segment_descriptor_dword(gdt, ldt, &seg_tss64_cpl3); fill_segment_descriptor(gdt, ldt, &seg_cgate16); fill_segment_descriptor(gdt, ldt, &seg_tgate16); fill_segment_descriptor(gdt, ldt, &seg_cgate32); fill_segment_descriptor(gdt, ldt, &seg_tgate32); fill_segment_descriptor_dword(gdt, ldt, &seg_cgate64); if (ioctl(cpufd, KVM_SET_SREGS, &sregs)) return -1; if (ioctl(cpufd, KVM_SET_REGS, ®s)) return -1; return 0; } #define RFLAGS_1_BIT (1ULL << 1) #define RFLAGS_IF_BIT (1ULL << 9) static void reset_cpu_regs(int cpufd, int cpu_id, size_t text_size) { struct kvm_regs regs; memset(®s, 0, sizeof(regs)); regs.rflags |= RFLAGS_1_BIT | RFLAGS_IF_BIT; regs.rip = executor_fn_guest_addr(guest_main); regs.rsp = X86_SYZOS_ADDR_STACK0; regs.rdi = text_size; regs.rsi = cpu_id; ioctl(cpufd, KVM_SET_REGS, ®s); } static void install_user_code(struct kvm_syz_vm* vm, int cpufd, int cpu_id, const void* text, size_t text_size) { if ((cpu_id < 0) || (cpu_id >= KVM_MAX_VCPU)) return; if (text_size > KVM_PAGE_SIZE) text_size = KVM_PAGE_SIZE; void* target = (void*)((uint64_t)vm->user_text + (KVM_PAGE_SIZE * cpu_id)); memcpy(target, text, text_size); setup_gdt_ldt_pg(vm, cpufd); setup_cpuid(cpufd); reset_cpu_regs(cpufd, cpu_id, text_size); } struct addr_size { void* addr; size_t size; }; static struct addr_size alloc_guest_mem(struct addr_size* free, size_t size) { struct addr_size ret = {.addr = NULL, .size = 0}; if (free->size < size) return ret; ret.addr = free->addr; ret.size = size; free->addr = (void*)((char*)free->addr + size); free->size -= size; return ret; } static void vm_set_user_memory_region(int vmfd, uint32_t slot, uint32_t flags, uint64_t guest_phys_addr, uint64_t memory_size, uint64_t userspace_addr) { struct kvm_userspace_memory_region memreg; memreg.slot = slot; memreg.flags = flags; memreg.guest_phys_addr = guest_phys_addr; memreg.memory_size = memory_size; memreg.userspace_addr = userspace_addr; ioctl(vmfd, KVM_SET_USER_MEMORY_REGION, &memreg); } static void install_syzos_code(void* host_mem, size_t mem_size) { size_t size = (char*)&__stop_guest - (char*)&__start_guest; if (size > mem_size) exit(1); memcpy(host_mem, &__start_guest, size); } static void setup_vm(int vmfd, struct kvm_syz_vm* vm) { struct addr_size allocator = {.addr = vm->host_mem, .size = vm->total_pages * KVM_PAGE_SIZE}; int slot = 0; for (size_t i = 0; i < sizeof(syzos_mem_regions) / sizeof(syzos_mem_regions[0]); i++) { const struct mem_region* r = &syzos_mem_regions[i]; if (r->flags & MEM_REGION_FLAG_NO_HOST_MEM) continue; struct addr_size next = alloc_guest_mem(&allocator, r->pages * KVM_PAGE_SIZE); uint32_t flags = 0; if (r->flags & MEM_REGION_FLAG_DIRTY_LOG) flags |= KVM_MEM_LOG_DIRTY_PAGES; if (r->flags & MEM_REGION_FLAG_READONLY) flags |= KVM_MEM_READONLY; if (r->flags & MEM_REGION_FLAG_USER_CODE) vm->user_text = next.addr; if (r->flags & MEM_REGION_FLAG_GPA0) vm->gpa0_mem = next.addr; if (r->flags & MEM_REGION_FLAG_EXECUTOR_CODE) install_syzos_code(next.addr, next.size); vm_set_user_memory_region(vmfd, slot++, flags, r->gpa, next.size, (uintptr_t)next.addr); } struct addr_size next = alloc_guest_mem(&allocator, allocator.size); vm_set_user_memory_region(vmfd, slot++, 0, X86_SYZOS_ADDR_UNUSED, next.size, (uintptr_t)next.addr); } static long syz_kvm_setup_syzos_vm(volatile long a0, volatile long a1) { const int vmfd = a0; void* host_mem = (void*)a1; struct kvm_syz_vm* ret = (struct kvm_syz_vm*)host_mem; ret->host_mem = (void*)((uint64_t)host_mem + KVM_PAGE_SIZE); ret->total_pages = KVM_GUEST_PAGES - 1; setup_vm(vmfd, ret); ret->vmfd = vmfd; ret->next_cpu_id = 0; return (long)ret; } static long syz_kvm_add_vcpu(volatile long a0, volatile long a1) { struct kvm_syz_vm* vm = (struct kvm_syz_vm*)a0; struct kvm_text* utext = (struct kvm_text*)a1; const void* text = utext->text; size_t text_size = utext->size; if (!vm) { errno = EINVAL; return -1; } if (vm->next_cpu_id == KVM_MAX_VCPU) { errno = ENOMEM; return -1; } int cpu_id = vm->next_cpu_id; int cpufd = ioctl(vm->vmfd, KVM_CREATE_VCPU, cpu_id); if (cpufd == -1) return -1; vm->next_cpu_id++; install_user_code(vm, cpufd, cpu_id, text, text_size); return cpufd; } static void setup_gadgetfs(); static void setup_binderfs(); static void setup_fusectl(); static void sandbox_common_mount_tmpfs(void) { write_file("/proc/sys/fs/mount-max", "100000"); if (mkdir("./syz-tmp", 0777)) exit(1); if (mount("", "./syz-tmp", "tmpfs", 0, NULL)) exit(1); if (mkdir("./syz-tmp/newroot", 0777)) exit(1); if (mkdir("./syz-tmp/newroot/dev", 0700)) exit(1); unsigned bind_mount_flags = MS_BIND | MS_REC | MS_PRIVATE; if (mount("/dev", "./syz-tmp/newroot/dev", NULL, bind_mount_flags, NULL)) exit(1); if (mkdir("./syz-tmp/newroot/proc", 0700)) exit(1); if (mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL)) exit(1); if (mkdir("./syz-tmp/newroot/selinux", 0700)) exit(1); const char* selinux_path = "./syz-tmp/newroot/selinux"; if (mount("/selinux", selinux_path, NULL, bind_mount_flags, NULL)) { if (errno != ENOENT) exit(1); if (mount("/sys/fs/selinux", selinux_path, NULL, bind_mount_flags, NULL) && errno != ENOENT) exit(1); } if (mkdir("./syz-tmp/newroot/sys", 0700)) exit(1); if (mount("/sys", "./syz-tmp/newroot/sys", 0, bind_mount_flags, NULL)) exit(1); if (mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, bind_mount_flags, NULL) && errno != ENOENT) exit(1); if (mount("/sys/fs/smackfs", "./syz-tmp/newroot/sys/fs/smackfs", NULL, bind_mount_flags, NULL) && errno != ENOENT) exit(1); if (mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, bind_mount_flags, NULL) && errno != ENOENT) exit(1); if (mkdir("./syz-tmp/newroot/syz-inputs", 0700)) exit(1); if (mount("/syz-inputs", "./syz-tmp/newroot/syz-inputs", NULL, bind_mount_flags | MS_RDONLY, NULL) && errno != ENOENT) exit(1); if (mkdir("./syz-tmp/pivot", 0777)) exit(1); if (syscall(SYS_pivot_root, "./syz-tmp", "./syz-tmp/pivot")) { if (chdir("./syz-tmp")) exit(1); } else { if (chdir("/")) exit(1); if (umount2("./pivot", MNT_DETACH)) exit(1); } if (chroot("./newroot")) exit(1); if (chdir("/")) exit(1); setup_gadgetfs(); setup_binderfs(); setup_fusectl(); } static void setup_gadgetfs() { if (mkdir("/dev/gadgetfs", 0777)) { } if (mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL)) { } } static void setup_fusectl() { if (mount(0, "/sys/fs/fuse/connections", "fusectl", 0, 0)) { } } static void setup_binderfs() { if (mkdir("/dev/binderfs", 0777)) { } if (mount("binder", "/dev/binderfs", "binder", 0, NULL)) { } } static void loop(); static void sandbox_common() { prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0); if (getppid() == 1) exit(1); int netns = open("/proc/self/ns/net", O_RDONLY); if (netns == -1) exit(1); if (dup2(netns, kInitNetNsFd) < 0) exit(1); close(netns); struct rlimit rlim; rlim.rlim_cur = rlim.rlim_max = (200 << 20); setrlimit(RLIMIT_AS, &rlim); rlim.rlim_cur = rlim.rlim_max = 32 << 20; setrlimit(RLIMIT_MEMLOCK, &rlim); rlim.rlim_cur = rlim.rlim_max = 136 << 20; setrlimit(RLIMIT_FSIZE, &rlim); rlim.rlim_cur = rlim.rlim_max = 1 << 20; setrlimit(RLIMIT_STACK, &rlim); rlim.rlim_cur = rlim.rlim_max = 128 << 20; setrlimit(RLIMIT_CORE, &rlim); rlim.rlim_cur = rlim.rlim_max = 256; setrlimit(RLIMIT_NOFILE, &rlim); if (unshare(CLONE_NEWNS)) { } if (mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, NULL)) { } if (unshare(CLONE_NEWIPC)) { } if (unshare(0x02000000)) { } if (unshare(CLONE_NEWUTS)) { } if (unshare(CLONE_SYSVSEM)) { } typedef struct { const char* name; const char* value; } sysctl_t; static const sysctl_t sysctls[] = { {"/proc/sys/kernel/shmmax", "16777216"}, {"/proc/sys/kernel/shmall", "536870912"}, {"/proc/sys/kernel/shmmni", "1024"}, {"/proc/sys/kernel/msgmax", "8192"}, {"/proc/sys/kernel/msgmni", "1024"}, {"/proc/sys/kernel/msgmnb", "1024"}, {"/proc/sys/kernel/sem", "1024 1048576 500 1024"}, }; unsigned i; for (i = 0; i < sizeof(sysctls) / sizeof(sysctls[0]); i++) write_file(sysctls[i].name, sysctls[i].value); } static int wait_for_loop(int pid) { if (pid < 0) exit(1); int status = 0; while (waitpid(-1, &status, __WALL) != pid) { } return WEXITSTATUS(status); } static void drop_caps(void) { struct __user_cap_header_struct cap_hdr = {}; struct __user_cap_data_struct cap_data[2] = {}; cap_hdr.version = _LINUX_CAPABILITY_VERSION_3; cap_hdr.pid = getpid(); if (syscall(SYS_capget, &cap_hdr, &cap_data)) exit(1); const int drop = (1 << CAP_SYS_PTRACE) | (1 << CAP_SYS_NICE); cap_data[0].effective &= ~drop; cap_data[0].permitted &= ~drop; cap_data[0].inheritable &= ~drop; if (syscall(SYS_capset, &cap_hdr, &cap_data)) exit(1); } static int do_sandbox_none(void) { if (unshare(CLONE_NEWPID)) { } int pid = fork(); if (pid != 0) return wait_for_loop(pid); sandbox_common(); drop_caps(); if (unshare(CLONE_NEWNET)) { } write_file("/proc/sys/net/ipv4/ping_group_range", "0 65535"); sandbox_common_mount_tmpfs(); loop(); exit(1); } #define FS_IOC_SETFLAGS _IOW('f', 2, long) static void remove_dir(const char* dir) { int iter = 0; DIR* dp = 0; const int umount_flags = MNT_FORCE | UMOUNT_NOFOLLOW; retry: while (umount2(dir, umount_flags) == 0) { } dp = opendir(dir); if (dp == NULL) { if (errno == EMFILE) { exit(1); } exit(1); } struct dirent* ep = 0; while ((ep = readdir(dp))) { if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0) continue; char filename[FILENAME_MAX]; snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name); while (umount2(filename, umount_flags) == 0) { } struct stat st; if (lstat(filename, &st)) exit(1); if (S_ISDIR(st.st_mode)) { remove_dir(filename); continue; } int i; for (i = 0;; i++) { if (unlink(filename) == 0) break; if (errno == EPERM) { int fd = open(filename, O_RDONLY); if (fd != -1) { long flags = 0; if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) { } close(fd); continue; } } if (errno == EROFS) { break; } if (errno != EBUSY || i > 100) exit(1); if (umount2(filename, umount_flags)) exit(1); } } closedir(dp); for (int i = 0;; i++) { if (rmdir(dir) == 0) break; if (i < 100) { if (errno == EPERM) { int fd = open(dir, O_RDONLY); if (fd != -1) { long flags = 0; if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) { } close(fd); continue; } } if (errno == EROFS) { break; } if (errno == EBUSY) { if (umount2(dir, umount_flags)) exit(1); continue; } if (errno == ENOTEMPTY) { if (iter < 100) { iter++; goto retry; } } } exit(1); } } static int inject_fault(int nth) { int fd; fd = open("/proc/thread-self/fail-nth", O_RDWR); if (fd == -1) exit(1); char buf[16]; sprintf(buf, "%d", nth); if (write(fd, buf, strlen(buf)) != (ssize_t)strlen(buf)) exit(1); return fd; } static void kill_and_wait(int pid, int* status) { kill(-pid, SIGKILL); kill(pid, SIGKILL); for (int i = 0; i < 100; i++) { if (waitpid(-1, status, WNOHANG | __WALL) == pid) return; usleep(1000); } DIR* dir = opendir("/sys/fs/fuse/connections"); if (dir) { for (;;) { struct dirent* ent = readdir(dir); if (!ent) break; if (strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0) continue; char abort[300]; snprintf(abort, sizeof(abort), "/sys/fs/fuse/connections/%s/abort", ent->d_name); int fd = open(abort, O_WRONLY); if (fd == -1) { continue; } if (write(fd, abort, 1) < 0) { } close(fd); } closedir(dir); } else { } while (waitpid(-1, status, __WALL) != pid) { } } static void reset_loop() { char buf[64]; snprintf(buf, sizeof(buf), "/dev/loop%llu", procid); int loopfd = open(buf, O_RDWR); if (loopfd != -1) { ioctl(loopfd, LOOP_CLR_FD, 0); close(loopfd); } } static void setup_test() { prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0); setpgrp(); write_file("/proc/self/oom_score_adj", "1000"); if (symlink("/dev/binderfs", "./binderfs")) { } } static const char* setup_fault() { int fd = open("/proc/self/make-it-fail", O_WRONLY); if (fd == -1) return "CONFIG_FAULT_INJECTION is not enabled"; close(fd); fd = open("/proc/thread-self/fail-nth", O_WRONLY); if (fd == -1) return "kernel does not have systematic fault injection support"; close(fd); static struct { const char* file; const char* val; bool fatal; } files[] = { {"/sys/kernel/debug/failslab/ignore-gfp-wait", "N", true}, {"/sys/kernel/debug/fail_futex/ignore-private", "N", false}, {"/sys/kernel/debug/fail_page_alloc/ignore-gfp-highmem", "N", false}, {"/sys/kernel/debug/fail_page_alloc/ignore-gfp-wait", "N", false}, {"/sys/kernel/debug/fail_page_alloc/min-order", "0", false}, }; unsigned i; for (i = 0; i < sizeof(files) / sizeof(files[0]); i++) { if (!write_file(files[i].file, files[i].val)) { if (files[i].fatal) return "failed to write fault injection file"; } } return NULL; } #define FUSE_MIN_READ_BUFFER 8192 enum fuse_opcode { FUSE_LOOKUP = 1, FUSE_FORGET = 2, FUSE_GETATTR = 3, FUSE_SETATTR = 4, FUSE_READLINK = 5, FUSE_SYMLINK = 6, FUSE_MKNOD = 8, FUSE_MKDIR = 9, FUSE_UNLINK = 10, FUSE_RMDIR = 11, FUSE_RENAME = 12, FUSE_LINK = 13, FUSE_OPEN = 14, FUSE_READ = 15, FUSE_WRITE = 16, FUSE_STATFS = 17, FUSE_RELEASE = 18, FUSE_FSYNC = 20, FUSE_SETXATTR = 21, FUSE_GETXATTR = 22, FUSE_LISTXATTR = 23, FUSE_REMOVEXATTR = 24, FUSE_FLUSH = 25, FUSE_INIT = 26, FUSE_OPENDIR = 27, FUSE_READDIR = 28, FUSE_RELEASEDIR = 29, FUSE_FSYNCDIR = 30, FUSE_GETLK = 31, FUSE_SETLK = 32, FUSE_SETLKW = 33, FUSE_ACCESS = 34, FUSE_CREATE = 35, FUSE_INTERRUPT = 36, FUSE_BMAP = 37, FUSE_DESTROY = 38, FUSE_IOCTL = 39, FUSE_POLL = 40, FUSE_NOTIFY_REPLY = 41, FUSE_BATCH_FORGET = 42, FUSE_FALLOCATE = 43, FUSE_READDIRPLUS = 44, FUSE_RENAME2 = 45, FUSE_LSEEK = 46, FUSE_COPY_FILE_RANGE = 47, FUSE_SETUPMAPPING = 48, FUSE_REMOVEMAPPING = 49, FUSE_SYNCFS = 50, FUSE_TMPFILE = 51, FUSE_STATX = 52, CUSE_INIT = 4096, CUSE_INIT_BSWAP_RESERVED = 1048576, FUSE_INIT_BSWAP_RESERVED = 436207616, }; struct fuse_in_header { uint32_t len; uint32_t opcode; uint64_t unique; uint64_t nodeid; uint32_t uid; uint32_t gid; uint32_t pid; uint32_t padding; }; struct fuse_out_header { uint32_t len; uint32_t error; uint64_t unique; }; struct syz_fuse_req_out { struct fuse_out_header* init; struct fuse_out_header* lseek; struct fuse_out_header* bmap; struct fuse_out_header* poll; struct fuse_out_header* getxattr; struct fuse_out_header* lk; struct fuse_out_header* statfs; struct fuse_out_header* write; struct fuse_out_header* read; struct fuse_out_header* open; struct fuse_out_header* attr; struct fuse_out_header* entry; struct fuse_out_header* dirent; struct fuse_out_header* direntplus; struct fuse_out_header* create_open; struct fuse_out_header* ioctl; struct fuse_out_header* statx; }; static int fuse_send_response(int fd, const struct fuse_in_header* in_hdr, struct fuse_out_header* out_hdr) { if (!out_hdr) { return -1; } out_hdr->unique = in_hdr->unique; if (write(fd, out_hdr, out_hdr->len) == -1) { return -1; } return 0; } static volatile long syz_fuse_handle_req(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { struct syz_fuse_req_out* req_out = (struct syz_fuse_req_out*)a3; struct fuse_out_header* out_hdr = NULL; char* buf = (char*)a1; int buf_len = (int)a2; int fd = (int)a0; if (!req_out) { return -1; } if (buf_len < FUSE_MIN_READ_BUFFER) { return -1; } int ret = read(fd, buf, buf_len); if (ret == -1) { return -1; } if ((size_t)ret < sizeof(struct fuse_in_header)) { return -1; } const struct fuse_in_header* in_hdr = (const struct fuse_in_header*)buf; if (in_hdr->len > (uint32_t)ret) { return -1; } switch (in_hdr->opcode) { case FUSE_GETATTR: case FUSE_SETATTR: out_hdr = req_out->attr; break; case FUSE_LOOKUP: case FUSE_SYMLINK: case FUSE_LINK: case FUSE_MKNOD: case FUSE_MKDIR: out_hdr = req_out->entry; break; case FUSE_OPEN: case FUSE_OPENDIR: out_hdr = req_out->open; break; case FUSE_STATFS: out_hdr = req_out->statfs; break; case FUSE_RMDIR: case FUSE_RENAME: case FUSE_RENAME2: case FUSE_FALLOCATE: case FUSE_SETXATTR: case FUSE_REMOVEXATTR: case FUSE_FSYNCDIR: case FUSE_FSYNC: case FUSE_SETLKW: case FUSE_SETLK: case FUSE_ACCESS: case FUSE_FLUSH: case FUSE_RELEASE: case FUSE_RELEASEDIR: case FUSE_UNLINK: case FUSE_DESTROY: out_hdr = req_out->init; if (!out_hdr) { return -1; } out_hdr->len = sizeof(struct fuse_out_header); break; case FUSE_READ: out_hdr = req_out->read; break; case FUSE_READDIR: out_hdr = req_out->dirent; break; case FUSE_READDIRPLUS: out_hdr = req_out->direntplus; break; case FUSE_INIT: out_hdr = req_out->init; break; case FUSE_LSEEK: out_hdr = req_out->lseek; break; case FUSE_GETLK: out_hdr = req_out->lk; break; case FUSE_BMAP: out_hdr = req_out->bmap; break; case FUSE_POLL: out_hdr = req_out->poll; break; case FUSE_GETXATTR: case FUSE_LISTXATTR: out_hdr = req_out->getxattr; break; case FUSE_WRITE: case FUSE_COPY_FILE_RANGE: out_hdr = req_out->write; break; case FUSE_FORGET: case FUSE_BATCH_FORGET: return 0; case FUSE_CREATE: out_hdr = req_out->create_open; break; case FUSE_IOCTL: out_hdr = req_out->ioctl; break; case FUSE_STATX: out_hdr = req_out->statx; break; default: return -1; } return fuse_send_response(fd, in_hdr, out_hdr); } #define HWSIM_ATTR_RX_RATE 5 #define HWSIM_ATTR_SIGNAL 6 #define HWSIM_ATTR_ADDR_RECEIVER 1 #define HWSIM_ATTR_FRAME 3 #define WIFI_MAX_INJECT_LEN 2048 static int hwsim_register_socket(struct nlmsg* nlmsg, int sock, int hwsim_family) { struct genlmsghdr genlhdr; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = HWSIM_CMD_REGISTER; netlink_init(nlmsg, hwsim_family, 0, &genlhdr, sizeof(genlhdr)); int err = netlink_send_ext(nlmsg, sock, 0, NULL, false); if (err < 0) { } return err; } static int hwsim_inject_frame(struct nlmsg* nlmsg, int sock, int hwsim_family, uint8_t* mac_addr, uint8_t* data, int len) { struct genlmsghdr genlhdr; uint32_t rx_rate = WIFI_DEFAULT_RX_RATE; uint32_t signal = WIFI_DEFAULT_SIGNAL; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = HWSIM_CMD_FRAME; netlink_init(nlmsg, hwsim_family, 0, &genlhdr, sizeof(genlhdr)); netlink_attr(nlmsg, HWSIM_ATTR_RX_RATE, &rx_rate, sizeof(rx_rate)); netlink_attr(nlmsg, HWSIM_ATTR_SIGNAL, &signal, sizeof(signal)); netlink_attr(nlmsg, HWSIM_ATTR_ADDR_RECEIVER, mac_addr, ETH_ALEN); netlink_attr(nlmsg, HWSIM_ATTR_FRAME, data, len); int err = netlink_send_ext(nlmsg, sock, 0, NULL, false); if (err < 0) { } return err; } static long syz_80211_inject_frame(volatile long a0, volatile long a1, volatile long a2) { uint8_t* mac_addr = (uint8_t*)a0; uint8_t* buf = (uint8_t*)a1; int buf_len = (int)a2; struct nlmsg tmp_msg; if (buf_len < 0 || buf_len > WIFI_MAX_INJECT_LEN) { return -1; } int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC); if (sock < 0) { return -1; } int hwsim_family_id = netlink_query_family_id(&tmp_msg, sock, "MAC80211_HWSIM", false); if (hwsim_family_id < 0) { close(sock); return -1; } int ret = hwsim_register_socket(&tmp_msg, sock, hwsim_family_id); if (ret < 0) { close(sock); return -1; } ret = hwsim_inject_frame(&tmp_msg, sock, hwsim_family_id, mac_addr, buf, buf_len); close(sock); if (ret < 0) { return -1; } return 0; } #define WIFI_MAX_SSID_LEN 32 #define WIFI_JOIN_IBSS_NO_SCAN 0 #define WIFI_JOIN_IBSS_BG_SCAN 1 #define WIFI_JOIN_IBSS_BG_NO_SCAN 2 static long syz_80211_join_ibss(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { char* interface = (char*)a0; uint8_t* ssid = (uint8_t*)a1; int ssid_len = (int)a2; int mode = (int)a3; struct nlmsg tmp_msg; uint8_t bssid[ETH_ALEN] = WIFI_IBSS_BSSID; if (ssid_len < 0 || ssid_len > WIFI_MAX_SSID_LEN) { return -1; } if (mode < 0 || mode > WIFI_JOIN_IBSS_BG_NO_SCAN) { return -1; } int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC); if (sock < 0) { return -1; } int nl80211_family_id = netlink_query_family_id(&tmp_msg, sock, "nl80211", false); if (nl80211_family_id < 0) { close(sock); return -1; } struct join_ibss_props ibss_props = { .wiphy_freq = WIFI_DEFAULT_FREQUENCY, .wiphy_freq_fixed = (mode == WIFI_JOIN_IBSS_NO_SCAN || mode == WIFI_JOIN_IBSS_BG_NO_SCAN), .mac = bssid, .ssid = ssid, .ssid_len = ssid_len}; int ret = nl80211_setup_ibss_interface(&tmp_msg, sock, nl80211_family_id, interface, &ibss_props, false); close(sock); if (ret < 0) { return -1; } if (mode == WIFI_JOIN_IBSS_NO_SCAN) { ret = await_ifla_operstate(&tmp_msg, interface, IF_OPER_UP, false); if (ret < 0) { return -1; } } return 0; } #define USLEEP_FORKED_CHILD (3 * 50 *1000) static long handle_clone_ret(long ret) { if (ret != 0) { return ret; } usleep(USLEEP_FORKED_CHILD); syscall(__NR_exit, 0); while (1) { } } static long syz_clone(volatile long flags, volatile long stack, volatile long stack_len, volatile long ptid, volatile long ctid, volatile long tls) { long sp = (stack + stack_len) & ~15; long ret = (long)syscall(__NR_clone, flags & ~CLONE_VM, sp, ptid, ctid, tls); return handle_clone_ret(ret); } #define MAX_CLONE_ARGS_BYTES 256 static long syz_clone3(volatile long a0, volatile long a1) { unsigned long copy_size = a1; if (copy_size < sizeof(uint64_t) || copy_size > MAX_CLONE_ARGS_BYTES) return -1; char clone_args[MAX_CLONE_ARGS_BYTES]; memcpy(&clone_args, (void*)a0, copy_size); uint64_t* flags = (uint64_t*)&clone_args; *flags &= ~CLONE_VM; return handle_clone_ret((long)syscall(__NR_clone3, &clone_args, copy_size)); } #define RESERVED_PKEY 15 static long syz_pkey_set(volatile long pkey, volatile long val) { if (pkey == RESERVED_PKEY) { errno = EINVAL; return -1; } uint32_t eax = 0; uint32_t ecx = 0; asm volatile("rdpkru" : "=a"(eax) : "c"(ecx) : "edx"); eax &= ~(3 << ((pkey % 16) * 2)); eax |= (val & 3) << ((pkey % 16) * 2); uint32_t edx = 0; asm volatile("wrpkru" ::"a"(eax), "c"(ecx), "d"(edx)); return 0; } static long syz_pidfd_open(volatile long pid, volatile long flags) { if (pid == 1) { pid = 0; } return syscall(__NR_pidfd_open, pid, flags); } static void execute_one(void); #define WAIT_FLAGS __WALL static void loop(void) { int iter = 0; for (;; iter++) { char cwdbuf[32]; sprintf(cwdbuf, "./%d", iter); if (mkdir(cwdbuf, 0777)) exit(1); reset_loop(); int pid = fork(); if (pid < 0) exit(1); if (pid == 0) { if (chdir(cwdbuf)) exit(1); setup_test(); execute_one(); exit(0); } int status = 0; uint64_t start = current_time_ms(); for (;;) { sleep_ms(10); if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid) break; if (current_time_ms() - start < 5000) continue; kill_and_wait(pid, &status); break; } remove_dir(cwdbuf); } } uint64_t r[41] = {0xffffffffffffffff, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff}; void execute_one(void) { intptr_t res = 0; if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {} memcpy((void*)0x200000000000, "/dev/ubi_ctrl\000", 14); inject_fault(1); res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x200000000000ul, /*flags=O_NOCTTY|O_NOATIME|O_DIRECT|O_APPEND|O_RDWR*/0x44502, /*mode=*/0); if (res != -1) r[0] = res; STORE_BY_BITMASK(uint8_t, , 0x200000000140, 0xa, 0, 7); STORE_BY_BITMASK(uint8_t, , 0x200000000140, 1, 7, 1); *(uint32_t*)0x200000000144 = 0xc5; *(uint32_t*)0x200000000148 = 1; *(uint64_t*)0x200000000150 = 0x200000000040; memcpy((void*)0x200000000040, "\xe1\xee\x87\xa8\xf7\x6c\x25\x7b\x75\xc1\x07\x3c\x70\x58\xbe\x82\xfe\x33\x62\xbb\xcc\xa5\x4d\xf5\x20\xd1\xca\x8f\xa9\x1b\x50\x81\x0f\x87\x6d\x1f\xab\x0a\x1c\xc2\x14\xc3\x5f\x4e\x26\x6e\x71\x64\x3d\x8c\x95\x98\x80\x87\xe4\x6a\x87\xc1\xa7\x15\xef\xfe\x06\x16\x9a\xb6\x5f\xa1\x8e\x54\x14\x40\x4f\x30\xc0\x00\x55\x61\x39\x7e\xd1\xd9\x55\x7c\x66\xa9\x94\xb9\x54\xef\xa7\x14\x98\x5a\x2a\xe4\x09\xdf\x81\x11\xfa\x8a\x36\x14\x08\x73\x4d\x15\xb3\x0c\xd9\xab\x3f\xa5\x0e\x08\x8b\x3d\x2b\xaf\xdc\x68\x9e\xa3\xcb\x7e\x52\xa9\xfc\x7f\x5d\x48\xd2\x45\xd4\x09\x7b\xb9\x33\x72\x5b\xd9\xe2\x93\x71\xcd\x77\x80\xb4\xec\x8d\x6e\x2d\xbf\x86\x1a\xad\x04\xd6\x59\x4f\x5e\xbd\x2f\xfa\xb1\xe8\xa6\x8c\x51\x57\xca\xe2\xf4\x6f\x6f\xa3\xae\xac\x0e\x3f\x8b\x7b\x97\x63\x0f\x34\x6b\xc3\x27\x6e\x53\xca\x72\xb4\x17\xf8", 197); syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0xc0185502, /*arg=*/0x200000000140ul); *(uint8_t*)0x200000000180 = 4; *(uint8_t*)0x200000000181 = 9; syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x4002f516, /*arg=*/0x200000000180ul); for (int i = 0; i < 4; i++) { syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x4002f516, /*arg=*/0x200000000180ul); } *(uint32_t*)0x2000000001c0 = -1; syscall(__NR_setsockopt, /*fd=*/r[0], /*level=*/6, /*optname=*/0x13, /*optval=*/0x2000000001c0ul, /*optlen=*/4ul); *(uint32_t*)0x200000000200 = 4; *(uint16_t*)0x200000000208 = 0xa; *(uint16_t*)0x20000000020a = htobe16(0x4e20); *(uint32_t*)0x20000000020c = htobe32(4); *(uint8_t*)0x200000000210 = 0xfc; *(uint8_t*)0x200000000211 = 0; memset((void*)0x200000000212, 0, 13); *(uint8_t*)0x20000000021f = 1; *(uint32_t*)0x200000000220 = 0; *(uint16_t*)0x200000000288 = 0xa; *(uint16_t*)0x20000000028a = htobe16(0x4e21); *(uint32_t*)0x20000000028c = htobe32(1); *(uint8_t*)0x200000000290 = 0xfe; *(uint8_t*)0x200000000291 = 0x80; memset((void*)0x200000000292, 0, 13); *(uint8_t*)0x20000000029f = 0xaa; *(uint32_t*)0x2000000002a0 = 9; syscall(__NR_setsockopt, /*fd=*/r[0], /*level=*/0x29, /*optname=MCAST_BLOCK_SOURCE*/0x2b, /*optval=*/0x200000000200ul, /*optlen=*/0x108ul); *(uint32_t*)0x200000000340 = 0x4b; memcpy((void*)0x200000000344, "\x0c\xbd\x83\x9a\x79\x58\x33\x77\x5d\x88\x69\x41\xba\x50\xa6\x62\xb8\x10\x8f\x94\x6a\xef\xdd\x5c\xb7\xb6\xeb\x3a\x78\xa0\x64\x73\xe5\x82\x89\xee\x95\x41\xad\x35\x45\x8f\xa9\xd6\xb6\x44\xbf\x56\xfd\xbb\xe1\xc4\x40\x04\x3f\x67\x9b\x3a\x03\xcf\x34\xcc\x05\xed\xc7\x36\xad\x84\x88\x52\xc6\x93\xb8\x9b\x55\x1c\xaa\xbf\x8c\xae\xdd\x7f\x8e\xe9\x80\x29\x49\x11\xc0\x2a\xcd\xb1\x10\x5f\x36\xe9\x73\x61\x6e\xb6\x09\x53\x5e\x68\xc8\xaf\xfb\x3c\x93\x5c\x76\x0f\x88\x5f\xa2\xa4\xb4\x83\x8d\x7d\xb0\x09\xe9\x19\xe5\xab\x59\x34\xb3\xb8\x5f\x8f\xf9\xe2\xaf\xc0\xa1\x86\xc9\xdc\xf9\xab\x5c\x9f\x6e\xb4\x56\x20\xdd\xbd\xa7\xe2\xa4\x67\x7a\x1e\x7c\x69\x4b\x3e\x00\xe3\x5a\x16\xd8\xe5\x25\x26\xd1\x35\x3b\xb0\xfd\x60\x7f\xa0\xf0\x7d\x45\x80\x81\x02\xe3\x8c\x66\xb6\xb5\xbf\xe0\x53\x03\x6b\x95\x6a\x96\x70\x1a\x8d\x02\x58\x8e\x7a\x7c\xc1\xf8\x4a\x3c\x0a\x3b\xa7\x80\xd5\xbb\x49\x4e\x86\x01\x75\x98\x9a\xb6\xec\x07\xd1\x35\x33\x71\x5c\xfb\x45\x84\xfd\x2a\x81\x86\xd7\x4b\xb7\x40\x17\x20\x6d\x94\x0f\x25\xfa\x7e\xc2\xde\xbe\x5a\x31\xcf\x5c\x23\x30", 256); syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x41045508, /*arg=*/0x200000000340ul); *(uint64_t*)0x200000000580 = 0x200000000480; *(uint64_t*)0x200000000588 = 0x8000; *(uint32_t*)0x200000000590 = 0x1800; *(uint32_t*)0x200000000594 = 1; *(uint32_t*)0x200000000598 = 3; syscall(__NR_setsockopt, /*fd=*/r[0], /*level=*/0x11b, /*opt=*/4, /*val=*/0x200000000580ul, /*len=*/0x20ul); *(uint64_t*)0x2000000005c0 = 4; syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x127d, /*arg=*/0x2000000005c0ul); *(uint32_t*)0x200000000604 = 0; *(uint32_t*)0x200000000608 = r[0]; *(uint32_t*)0x20000000060c = 0; syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0xc01864c2, /*arg=*/0x200000000600ul); *(uint32_t*)0x2000000006c0 = 0; syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0xc00464c9, /*arg=*/0x2000000006c0ul); memset((void*)0x200000000000, 255, 6); STORE_BY_BITMASK(uint8_t, , 0x200000000040, 0, 0, 2); STORE_BY_BITMASK(uint8_t, , 0x200000000040, 2, 2, 2); STORE_BY_BITMASK(uint8_t, , 0x200000000040, 0xb, 4, 4); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 0, 0, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 1, 1, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 0, 2, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 1, 3, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 1, 4, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 0, 5, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 0, 6, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 1, 7, 1); STORE_BY_BITMASK(uint16_t, , 0x200000000042, 2, 0, 15); STORE_BY_BITMASK(uint16_t, , 0x200000000043, 0, 7, 1); *(uint8_t*)0x200000000044 = 8; *(uint8_t*)0x200000000045 = 2; *(uint8_t*)0x200000000046 = 0x11; *(uint8_t*)0x200000000047 = 0; *(uint8_t*)0x200000000048 = 0; *(uint8_t*)0x200000000049 = 1; *(uint8_t*)0x20000000004a = 8; *(uint8_t*)0x20000000004b = 2; *(uint8_t*)0x20000000004c = 0x11; *(uint8_t*)0x20000000004d = 0; *(uint8_t*)0x20000000004e = 0; *(uint8_t*)0x20000000004f = 0; memset((void*)0x200000000050, 80, 6); STORE_BY_BITMASK(uint16_t, , 0x200000000056, 9, 0, 4); STORE_BY_BITMASK(uint16_t, , 0x200000000056, 0x5bb, 4, 12); STORE_BY_BITMASK(uint8_t, , 0x200000000058, 1, 0, 4); STORE_BY_BITMASK(uint8_t, , 0x200000000058, 1, 4, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000058, 1, 5, 2); STORE_BY_BITMASK(uint8_t, , 0x200000000058, 1, 7, 1); *(uint8_t*)0x200000000059 = 9; STORE_BY_BITMASK(uint16_t, , 0x20000000005a, 0, 0, 1); STORE_BY_BITMASK(uint16_t, , 0x20000000005a, 2, 1, 15); STORE_BY_BITMASK(uint8_t, , 0x20000000005c, 0, 0, 2); STORE_BY_BITMASK(uint8_t, , 0x20000000005c, 0, 2, 2); STORE_BY_BITMASK(uint8_t, , 0x20000000005c, 0, 4, 2); STORE_BY_BITMASK(uint8_t, , 0x20000000005c, 3, 6, 2); STORE_BY_BITMASK(uint8_t, , 0x20000000005d, 0, 0, 1); STORE_BY_BITMASK(uint8_t, , 0x20000000005d, 0, 1, 5); STORE_BY_BITMASK(uint8_t, , 0x20000000005d, 1, 6, 1); STORE_BY_BITMASK(uint8_t, , 0x20000000005d, 0, 7, 1); memcpy((void*)0x20000000005e, "\x05\x5b\xa7\x19\x28\xa7\x9f\x86\x25\x94\x2b\x8e\x22\xa6\x2e\x7d\x0e\xf5\xd2\x6a\xfb\x59\x23\xf0\xa1", 25); syz_80211_inject_frame(/*mac_addr=*/0x200000000000, /*buf=*/0x200000000040, /*buf_len=*/0x37); memcpy((void*)0x200000000080, "wlan0\000", 6); memcpy((void*)0x2000000000c0, "\xf2\x0f\x01\x43\x92\x29\x17\x2e\xc7\x63\x7d\x66\xe2\xf0\x75", 15); syz_80211_join_ibss(/*interface=*/0x200000000080, /*ssid=*/0x2000000000c0, /*ssid_len=*/0xf, /*join_mode=JOIN_IBSS_BG_NO_SCAN*/2); memcpy((void*)0x200000000100, "bpf_lsm_inode_getsecurity\000", 26); syz_btf_id_by_name(/*name=*/0x200000000100); memcpy((void*)0x200000000140, "\xff\x42\x7f\x0e\x46\x59\xab\x58\x93\xd3\xba\xdb\x31\xb3\xb1\xb8\x9d\xa5\x2b\x0f\x3d\x34\x89\xa1\x8a\x58\x37\xba\x6e\x04\xf2\x1c\xf0\x58\x1d\xe7\x94\x6c\x2e\x29\xad\xef\x18\x03\x6a\x10\xce\x36\x12\x50\xa5\x66\x70\x64\xb4\xd4\x56\xc6\x4c\x30\x7d\x63\xcf\xe3\x42\x2c\x3f\xaf\xd4\x50\x31\x5e\x83\x66", 74); memcpy((void*)0x200000000240, "\xb2\x01\xd1\x39\xa4\x34\x4e\x46\x3d\x89\x91\x3b\xee\x9c\x68\xaf\x3f\x34\x09\x0b\x9f\x62\x44\xaf\x88\xc8\xfe\x07\xce\x4f\xfe\x9b\x81\x21\x0d\xa0\xfc\x44\x55\x9d\x98\x5a\xd5\xbb\x1d\xc9\x67\x2c\xe4\xd1\xdf\x55\x4a\xaf\xb7\x80\x53\xf4", 58); res = -1; res = syz_clone(/*flags=CLONE_PIDFD*/0x1000, /*stack=*/0x200000000140, /*stack_len=*/0x4a, /*parentid=*/0x2000000001c0, /*childtid=*/0x200000000200, /*tls=*/0x200000000240); if (res != -1) r[1] = res; *(uint64_t*)0x200000000440 = 0x100400; *(uint64_t*)0x200000000448 = 0x200000000280; *(uint64_t*)0x200000000450 = 0x2000000002c0; *(uint64_t*)0x200000000458 = 0x200000000300; *(uint32_t*)0x200000000460 = 0x2a; *(uint64_t*)0x200000000468 = 0x200000000340; *(uint64_t*)0x200000000470 = 0x15; *(uint64_t*)0x200000000478 = 0x200000000380; *(uint64_t*)0x200000000480 = 0x200000000400; *(uint32_t*)0x200000000400 = r[1]; *(uint64_t*)0x200000000488 = 1; *(uint32_t*)0x200000000490 = -1; res = -1; res = syz_clone3(/*args=*/0x200000000440, /*size=*/0x58); if (res != -1) { r[2] = res; r[3] = *(uint32_t*)0x200000000280; r[4] = *(uint32_t*)0x2000000002c0; r[5] = *(uint32_t*)0x200000000300; } memcpy((void*)0x2000000004c0, "./file0\000", 8); syz_create_resource(/*file=*/0x2000000004c0); memcpy((void*)0x200000000740, "/dev/cuse\000", 10); res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x200000000740ul, /*flags=*/2, /*mode=*/0); if (res != -1) r[6] = res; *(uint32_t*)0x200000002a80 = 7; *(uint32_t*)0x200000002a84 = 4; *(uint32_t*)0x200000002a88 = r[5]; *(uint32_t*)0x200000002a90 = 0; *(uint64_t*)0x200000002a98 = 0x100000000; *(uint64_t*)0x200000002aa0 = 3; res = syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0xc0286405, /*arg=*/0x200000002a80ul); if (res != -1) r[7] = *(uint32_t*)0x200000002a90; *(uint32_t*)0x200000002b80 = 1; *(uint32_t*)0x200000002b84 = 0; *(uint32_t*)0x200000002b88 = 0xee00; *(uint32_t*)0x200000002b8c = 5; *(uint32_t*)0x200000002b90 = 9; *(uint32_t*)0x200000002b94 = 0x8c; *(uint16_t*)0x200000002b98 = 6; *(uint32_t*)0x200000002b9c = 0xe0000; *(uint64_t*)0x200000002ba0 = 3; *(uint64_t*)0x200000002ba8 = 6; *(uint64_t*)0x200000002bb0 = 0x2c54; *(uint32_t*)0x200000002bb8 = 0x7fffffff; *(uint32_t*)0x200000002bbc = 5; *(uint16_t*)0x200000002bc0 = 3; *(uint16_t*)0x200000002bc2 = 0; *(uint64_t*)0x200000002bc8 = 0x200000002ac0; memcpy((void*)0x200000002ac0, "\x34\xd1\x45\x92\x33\x0d\x2e\xff\xe2\xb2\x42\xce\x1c\x79\xf9\x7a\x73\x7d\xc0\xf7\x74\x5d\x84\xee\xc4\x69\x04\x8b\xa4\x77\x2d\x3c\xa2\xf3\x4e\x3a\x83\xb5\xed\xad\xf6\x55\x0e\x5b\x41\x2c\xf5\xee\x74\x9b\x33\x24\xb3\x00\x32\xad\x2a\xe1\x4c\xfa\x29\xef\x4e\xcf\x97\x41\x6f\xdc\x53\xd7\x3b\xb8\x0e\xa1\x39\xaa\xc1\xbf\x36\x4d\xdc\xbe\x74\x09\x34\x21\x55\xae\x12\x6f\x63\xd9\xe3\xab\x1d\x51\x04\xbe\xfd\xd9", 100); *(uint64_t*)0x200000002bd0 = 0x200000002b40; memcpy((void*)0x200000002b40, "\xe5\x50\x41\x3c\x2f\x46\x9c\x9e\xf0\x8e\xb7\x19\x3b\x0a\x24\x2e\x58\xbe\xfe\x01\x2a\xa8\x9d\x7c", 24); res = syscall(__NR_shmctl, /*shmid=*/8, /*cmd=*/2ul, /*buf=*/0x200000002b80ul); if (res != -1) r[8] = *(uint32_t*)0x200000002b88; res = syscall(__NR_setfsuid, /*uid=*/0xee01); if (res != -1) r[9] = res; res = syscall(__NR_getuid); if (res != -1) r[10] = res; res = syscall(__NR_fstat, /*fd=*/r[3], /*statbuf=*/0x200000002ec0ul); if (res != -1) { r[11] = *(uint32_t*)0x200000002ed8; r[12] = *(uint32_t*)0x200000002edc; } *(uint32_t*)0x200000002f40 = 9; *(uint32_t*)0x200000002f44 = 6; *(uint32_t*)0x200000002f48 = -1; *(uint32_t*)0x200000002f50 = 0xee01; *(uint64_t*)0x200000002f58 = 9; *(uint64_t*)0x200000002f60 = 8; res = syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0xc0286405, /*arg=*/0x200000002f40ul); if (res != -1) r[13] = *(uint32_t*)0x200000002f50; *(uint64_t*)0x200000002f80 = 1; *(uint32_t*)0x200000002f88 = r[3]; *(uint32_t*)0x200000002f90 = r[3]; *(uint64_t*)0x200000002f98 = 0; *(uint64_t*)0x200000002fa0 = 0; memset((void*)0x200000002fa8, 0, 16); *(uint64_t*)0x200000002fb8 = 0x100; *(uint16_t*)0x200000002fc0 = 6; *(uint16_t*)0x200000002fc2 = 4; *(uint32_t*)0x200000002fc4 = 0; *(uint32_t*)0x200000002fc8 = 0xee01; *(uint32_t*)0x200000002fcc = 4; *(uint32_t*)0x200000002fd0 = 2; *(uint64_t*)0x200000002fd8 = 0xe78bc90; *(uint64_t*)0x200000002fe0 = 0x9e350; *(uint32_t*)0x200000002fe8 = 0x10; *(uint64_t*)0x200000002ff0 = 4; *(uint32_t*)0x200000002ff8 = 7; *(uint64_t*)0x200000003000 = 0x3a83; *(uint32_t*)0x200000003008 = 0x80000000; *(uint64_t*)0x200000003010 = 0xff; *(uint32_t*)0x200000003018 = 8; *(uint32_t*)0x20000000301c = 7; *(uint32_t*)0x200000003020 = 7; *(uint32_t*)0x200000003024 = 5; *(uint16_t*)0x200000003028 = 0xd275; *(uint16_t*)0x20000000302a = 6; *(uint16_t*)0x20000000302c = 1; *(uint16_t*)0x20000000302e = 0xff74; *(uint16_t*)0x200000003030 = 5; memset((void*)0x200000003032, 0, 2); *(uint32_t*)0x200000003034 = 0xf0e; *(uint32_t*)0x200000003038 = 0x400; *(uint16_t*)0x20000000303c = 2; *(uint16_t*)0x20000000303e = 0x8001; res = syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0xc0c0586d, /*arg=*/0x200000002f80ul); if (res != -1) { r[14] = *(uint32_t*)0x200000002f88; r[15] = *(uint32_t*)0x200000002f90; r[16] = *(uint32_t*)0x200000002fc8; } *(uint32_t*)0x2000000030c0 = 0x80; *(uint32_t*)0x2000000030c4 = 0; *(uint32_t*)0x2000000030c8 = 0xee01; *(uint32_t*)0x2000000030cc = 8; *(uint32_t*)0x2000000030d0 = 3; *(uint32_t*)0x2000000030d4 = 3; *(uint16_t*)0x2000000030d8 = 6; *(uint64_t*)0x2000000030e0 = 0x200000003040; *(uint8_t*)0x200000003040 = 0xf; *(uint64_t*)0x2000000030e8 = 0x200000003080; *(uint8_t*)0x200000003080 = 0x29; *(uint64_t*)0x2000000030f0 = 0xfffffffffffff801; *(uint64_t*)0x2000000030f8 = 0x6b4c; *(uint64_t*)0x200000003100 = 0; *(uint64_t*)0x200000003108 = 3; *(uint64_t*)0x200000003110 = 0x800; *(uint16_t*)0x200000003118 = 2; *(uint16_t*)0x20000000311a = 0xbf09; *(uint16_t*)0x20000000311c = 3; *(uint32_t*)0x200000003120 = r[2]; *(uint32_t*)0x200000003124 = r[4]; res = syscall(__NR_msgctl, /*msqid=*/2, /*cmd=*/0ul, /*buf=*/0x2000000030c0ul); if (res != -1) r[17] = *(uint32_t*)0x2000000030c4; *(uint32_t*)0x200000003140 = 0xb407; *(uint32_t*)0x200000003144 = 0xee01; *(uint64_t*)0x200000003148 = 8; *(uint64_t*)0x200000003150 = 8; res = syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0x4018aee2, /*arg=*/0x200000003140ul); if (res != -1) r[18] = *(uint32_t*)0x200000003144; memcpy((void*)0x200000003180, "./file0\000", 8); *(uint32_t*)0x2000000031c0 = 8; *(uint32_t*)0x2000000031c4 = 0xfffffffe; *(uint64_t*)0x2000000031c8 = 0; *(uint32_t*)0x2000000031d0 = 0xa; *(uint32_t*)0x2000000031d4 = 0; *(uint32_t*)0x2000000031d8 = 0xee00; *(uint16_t*)0x2000000031dc = 0xf; *(uint16_t*)0x2000000031de = 0x5d3e; *(uint64_t*)0x2000000031e0 = 5; *(uint64_t*)0x2000000031e8 = 0x10; *(uint64_t*)0x2000000031f0 = 0xff89; *(uint64_t*)0x2000000031f8 = 0x100; *(uint64_t*)0x200000003200 = 0xf; *(uint32_t*)0x200000003208 = 8; *(uint32_t*)0x20000000320c = 0; *(uint64_t*)0x200000003210 = 0xfff; *(uint32_t*)0x200000003218 = 2; *(uint32_t*)0x20000000321c = 0; *(uint64_t*)0x200000003220 = 3; *(uint32_t*)0x200000003228 = 0x7fff; *(uint32_t*)0x20000000322c = 0; *(uint64_t*)0x200000003230 = -1; *(uint32_t*)0x200000003238 = 9; *(uint32_t*)0x20000000323c = 0; *(uint32_t*)0x200000003240 = 0; *(uint32_t*)0x200000003244 = 3; *(uint32_t*)0x200000003248 = 7; *(uint32_t*)0x20000000324c = 0x8d6; *(uint64_t*)0x200000003250 = 0x383d; *(uint32_t*)0x200000003258 = 4; *(uint32_t*)0x20000000325c = 0xb0d4; *(uint64_t*)0x200000003260 = 0x503; *(uint32_t*)0x200000003268 = 2; *(uint32_t*)0x20000000326c = 0; *(uint32_t*)0x200000003270 = 5; *(uint32_t*)0x200000003274 = 2; *(uint64_t*)0x200000003278 = 0xfffffffffffffffb; *(uint64_t*)0x200000003280 = 0xff; *(uint64_t*)0x200000003288 = 3; *(uint64_t*)0x200000003290 = 0x259; *(uint64_t*)0x200000003298 = 0xbe9; *(uint64_t*)0x2000000032a0 = 0xff; *(uint64_t*)0x2000000032a8 = 6; *(uint64_t*)0x2000000032b0 = 0x800; *(uint64_t*)0x2000000032b8 = 9; res = syscall(__NR_statx, /*dfd=*/0xffffff9c, /*filename=*/0x200000003180ul, /*flags=*/4, /*mask=*/2, /*buffer=*/0x2000000031c0ul); if (res != -1) r[19] = *(uint32_t*)0x2000000031d4; *(uint32_t*)0x200000004300 = 5; *(uint32_t*)0x200000004304 = 0xee00; *(uint32_t*)0x200000004308 = 0xee00; *(uint32_t*)0x20000000430c = 3; *(uint32_t*)0x200000004310 = 0x7ff; *(uint32_t*)0x200000004314 = 2; *(uint16_t*)0x200000004318 = 5; *(uint32_t*)0x20000000431c = 2; *(uint64_t*)0x200000004320 = 0x401; *(uint64_t*)0x200000004328 = 3; *(uint64_t*)0x200000004330 = 0xfffffffffffffffe; *(uint32_t*)0x200000004338 = r[1]; *(uint32_t*)0x20000000433c = r[4]; *(uint16_t*)0x200000004340 = 0xfffe; *(uint16_t*)0x200000004342 = 0; *(uint64_t*)0x200000004348 = 0x2000000032c0; memcpy((void*)0x2000000032c0, 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4096); *(uint64_t*)0x200000004350 = 0x2000000042c0; memcpy((void*)0x2000000042c0, "\x14\xdc\x2c\x36\xc1\xa4\x73\x0f\x33\xf0\xa4\x77\x56\xb4\x37\x79\x2e\x9a\xc7\x8f\x74\x2f\x82\x1e\x32\x83\x41\xe0\x2b", 29); res = syscall(__NR_shmctl, /*shmid=*/3, /*cmd=*/1ul, /*buf=*/0x200000004300ul); if (res != -1) { r[20] = *(uint32_t*)0x200000004308; r[21] = *(uint32_t*)0x20000000433c; } memcpy((void*)0x200000004600, "./file0\000", 8); res = syscall(__NR_newfstatat, /*dfd=*/0xffffffffffffff9cul, /*file=*/0x200000004600ul, /*statbuf=*/0x200000004640ul, /*flag=*/0ul); if (res != -1) r[22] = *(uint32_t*)0x200000004658; res = syscall(__NR_fstat, /*fd=*/r[3], /*statbuf=*/0x2000000046c0ul); if (res != -1) { r[23] = *(uint32_t*)0x2000000046d8; r[24] = *(uint32_t*)0x2000000046dc; } *(uint32_t*)0x2000000058c0 = -1; *(uint32_t*)0x2000000058c4 = 0xee00; *(uint32_t*)0x2000000058c8 = -1; *(uint32_t*)0x2000000058cc = 2; *(uint32_t*)0x2000000058d0 = 9; *(uint32_t*)0x2000000058d4 = 2; *(uint16_t*)0x2000000058d8 = 4; *(uint32_t*)0x2000000058dc = 6; *(uint64_t*)0x2000000058e0 = 4; *(uint64_t*)0x2000000058e8 = 4; *(uint64_t*)0x2000000058f0 = 1; *(uint32_t*)0x2000000058f8 = 0; *(uint32_t*)0x2000000058fc = r[4]; *(uint16_t*)0x200000005900 = 0x40; *(uint16_t*)0x200000005902 = 0; *(uint64_t*)0x200000005908 = 0x200000004840; memcpy((void*)0x200000004840, "\xbe\x99\x9e\xee\x25\x89\x59\xe9\x3a\x2a\xa6\x8d\xc2\xcb\x1d\x93\xb8\x19\xd2\xb9\xd9\xe6\x78\xe2\xe2\x50\x6d\x54\x51\x0e\x92\x07\x28\xd7\x58\x15\xbb\x80\x27\xe6\xa0\x21\xfe\xbb\x8f\x09\x96\xf8\xad\xd6\x87\x7b\x74\xce\x5e\xac\xe7\x45\x04\xcf\x3a\x4f\x3a\xc4\x6a\x5a\x59\x40\x03\x42\x35\x19\x40\xbf\xb8\x76\x7d\xd9\x95\x5c\x9e\x9a\x99\x41", 84); *(uint64_t*)0x200000005910 = 0x2000000048c0; memcpy((void*)0x2000000048c0, 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4096); res = syscall(__NR_shmctl, /*shmid=*/0, /*cmd=*/7, /*buf=*/0x2000000058c0ul); if (res != -1) r[25] = *(uint32_t*)0x2000000058c4; memcpy((void*)0x200000005940, "./file0\000", 8); *(uint64_t*)0x200000005980 = 0x100000000; *(uint64_t*)0x200000005988 = 0x7d80; *(uint64_t*)0x200000005990 = 1; *(uint32_t*)0x200000005998 = 0x40; *(uint32_t*)0x20000000599c = -1; *(uint32_t*)0x2000000059a0 = 0; *(uint32_t*)0x2000000059a4 = 0; *(uint64_t*)0x2000000059a8 = 7; *(uint64_t*)0x2000000059b0 = 0xfffffffffffffffb; *(uint64_t*)0x2000000059b8 = 0; *(uint64_t*)0x2000000059c0 = 2; *(uint64_t*)0x2000000059c8 = 0xe6; *(uint64_t*)0x2000000059d0 = 2; *(uint64_t*)0x2000000059d8 = 4; *(uint64_t*)0x2000000059e0 = 0xa03f; *(uint64_t*)0x2000000059e8 = 0x10; *(uint64_t*)0x2000000059f0 = 7; memset((void*)0x2000000059f8, 0, 24); res = syscall(__NR_lstat, /*filename=*/0x200000005940ul, /*statbuf=*/0x200000005980ul); if (res != -1) { r[26] = *(uint32_t*)0x20000000599c; r[27] = *(uint32_t*)0x2000000059a0; } memcpy((void*)0x200000000780, 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8192); *(uint64_t*)0x200000005b80 = 0x200000002780; *(uint32_t*)0x200000002780 = 0x50; *(uint32_t*)0x200000002784 = 0xffffffda; *(uint64_t*)0x200000002788 = 7; *(uint32_t*)0x200000002790 = 7; *(uint32_t*)0x200000002794 = 0x2d; *(uint32_t*)0x200000002798 = 8; *(uint32_t*)0x20000000279c = 0x1020000; *(uint16_t*)0x2000000027a0 = 0xfffc; *(uint16_t*)0x2000000027a2 = 0x401; *(uint32_t*)0x2000000027a4 = 0x12; *(uint32_t*)0x2000000027a8 = 6; *(uint16_t*)0x2000000027ac = 0; *(uint16_t*)0x2000000027ae = 0; *(uint32_t*)0x2000000027b0 = 0x40; *(uint32_t*)0x2000000027b4 = 0xce; memset((void*)0x2000000027b8, 0, 24); *(uint64_t*)0x200000005b88 = 0x200000002800; *(uint32_t*)0x200000002800 = 0x18; *(uint32_t*)0x200000002804 = 0; *(uint64_t*)0x200000002808 = 6; *(uint64_t*)0x200000002810 = 0xbb; *(uint64_t*)0x200000005b90 = 0x200000002840; *(uint32_t*)0x200000002840 = 0x18; *(uint32_t*)0x200000002844 = 0; *(uint64_t*)0x200000002848 = 1; *(uint64_t*)0x200000002850 = 5; *(uint64_t*)0x200000005b98 = 0x200000002880; *(uint32_t*)0x200000002880 = 0x18; *(uint32_t*)0x200000002884 = 0xfffffff5; *(uint64_t*)0x200000002888 = 4; *(uint32_t*)0x200000002890 = 0; *(uint32_t*)0x200000002894 = 0; *(uint64_t*)0x200000005ba0 = 0x2000000028c0; *(uint32_t*)0x2000000028c0 = 0x18; *(uint32_t*)0x2000000028c4 = 0xfffffffe; *(uint64_t*)0x2000000028c8 = 3; *(uint32_t*)0x2000000028d0 = 7; *(uint32_t*)0x2000000028d4 = 0; *(uint64_t*)0x200000005ba8 = 0x200000002900; *(uint32_t*)0x200000002900 = 0x28; *(uint32_t*)0x200000002904 = 0; *(uint64_t*)0x200000002908 = 0x300000000000; *(uint64_t*)0x200000002910 = 1; *(uint64_t*)0x200000002918 = 8; *(uint32_t*)0x200000002920 = 0; *(uint32_t*)0x200000002924 = r[1]; *(uint64_t*)0x200000005bb0 = 0x200000002940; *(uint32_t*)0x200000002940 = 0x60; *(uint32_t*)0x200000002944 = 0; *(uint64_t*)0x200000002948 = 0xc; *(uint64_t*)0x200000002950 = 0; *(uint64_t*)0x200000002958 = 0xff; *(uint64_t*)0x200000002960 = 2; *(uint64_t*)0x200000002968 = 0x41; *(uint64_t*)0x200000002970 = 0x40; *(uint32_t*)0x200000002978 = 6; *(uint32_t*)0x20000000297c = 0x8dd; *(uint32_t*)0x200000002980 = 5; *(uint32_t*)0x200000002984 = 0; memset((void*)0x200000002988, 0, 24); *(uint64_t*)0x200000005bb8 = 0x2000000029c0; *(uint32_t*)0x2000000029c0 = 0x18; *(uint32_t*)0x2000000029c4 = 0xffffffda; *(uint64_t*)0x2000000029c8 = 9; *(uint32_t*)0x2000000029d0 = 5; *(uint32_t*)0x2000000029d4 = 0; *(uint64_t*)0x200000005bc0 = 0x200000002a00; *(uint32_t*)0x200000002a00 = 0x16; *(uint32_t*)0x200000002a04 = 0; *(uint64_t*)0x200000002a08 = 6; memset((void*)0x200000002a10, 255, 6); *(uint64_t*)0x200000005bc8 = 0x200000002a40; *(uint32_t*)0x200000002a40 = 0x20; *(uint32_t*)0x200000002a44 = 0; *(uint64_t*)0x200000002a48 = 0; *(uint64_t*)0x200000002a50 = 0; *(uint32_t*)0x200000002a58 = 0x1e; *(uint32_t*)0x200000002a5c = 0; *(uint64_t*)0x200000005bd0 = 0x200000002c00; *(uint32_t*)0x200000002c00 = 0x78; *(uint32_t*)0x200000002c04 = 0xfffffffe; *(uint64_t*)0x200000002c08 = 3; *(uint64_t*)0x200000002c10 = 8; *(uint32_t*)0x200000002c18 = 6; *(uint32_t*)0x200000002c1c = 0; *(uint64_t*)0x200000002c20 = 0; *(uint64_t*)0x200000002c28 = 8; *(uint64_t*)0x200000002c30 = 2; *(uint64_t*)0x200000002c38 = 8; *(uint64_t*)0x200000002c40 = 0x80; *(uint64_t*)0x200000002c48 = 5; *(uint32_t*)0x200000002c50 = 0x3482; *(uint32_t*)0x200000002c54 = 0xa246; *(uint32_t*)0x200000002c58 = 0x80000000; *(uint32_t*)0x200000002c5c = 0x4000; *(uint32_t*)0x200000002c60 = 0x3e08; *(uint32_t*)0x200000002c64 = r[7]; *(uint32_t*)0x200000002c68 = r[8]; *(uint32_t*)0x200000002c6c = 0x7f; *(uint32_t*)0x200000002c70 = 3; *(uint32_t*)0x200000002c74 = 0; *(uint64_t*)0x200000005bd8 = 0x200000002c80; *(uint32_t*)0x200000002c80 = 0x90; *(uint32_t*)0x200000002c84 = 0xffffffda; *(uint64_t*)0x200000002c88 = 2; *(uint64_t*)0x200000002c90 = 6; *(uint64_t*)0x200000002c98 = 0; *(uint64_t*)0x200000002ca0 = 2; *(uint64_t*)0x200000002ca8 = 8; *(uint32_t*)0x200000002cb0 = 0xfffffffc; *(uint32_t*)0x200000002cb4 = 9; *(uint64_t*)0x200000002cb8 = 1; *(uint64_t*)0x200000002cc0 = 3; *(uint64_t*)0x200000002cc8 = 2; *(uint64_t*)0x200000002cd0 = 5; *(uint64_t*)0x200000002cd8 = 0x761; *(uint64_t*)0x200000002ce0 = 7; *(uint32_t*)0x200000002ce8 = 0x58d95c3d; *(uint32_t*)0x200000002cec = 7; *(uint32_t*)0x200000002cf0 = 7; *(uint32_t*)0x200000002cf4 = 0x8000; *(uint32_t*)0x200000002cf8 = 8; *(uint32_t*)0x200000002cfc = r[9]; *(uint32_t*)0x200000002d00 = 0xee01; *(uint32_t*)0x200000002d04 = 0; *(uint32_t*)0x200000002d08 = 0x400; *(uint32_t*)0x200000002d0c = 0; *(uint64_t*)0x200000005be0 = 0x200000002d40; *(uint32_t*)0x200000002d40 = 0x158; *(uint32_t*)0x200000002d44 = 0; *(uint64_t*)0x200000002d48 = 0x8000000000000001; *(uint64_t*)0x200000002d50 = 0; *(uint64_t*)0x200000002d58 = 0; *(uint32_t*)0x200000002d60 = 0; *(uint32_t*)0x200000002d64 = 5; *(uint64_t*)0x200000002d68 = 2; *(uint64_t*)0x200000002d70 = 0x291; *(uint32_t*)0x200000002d78 = 3; *(uint32_t*)0x200000002d7c = 0; memcpy((void*)0x200000002d80, "a-$", 3); *(uint64_t*)0x200000002d88 = 6; *(uint64_t*)0x200000002d90 = 1; *(uint32_t*)0x200000002d98 = 0x1a; *(uint32_t*)0x200000002d9c = 0x5df9; memcpy((void*)0x200000002da0, "bpf_lsm_inode_getsecurity\000", 26); *(uint64_t*)0x200000002dc0 = 5; *(uint64_t*)0x200000002dc8 = 4; *(uint32_t*)0x200000002dd0 = 0; *(uint32_t*)0x200000002dd4 = 0; *(uint64_t*)0x200000002dd8 = 3; *(uint64_t*)0x200000002de0 = 2; *(uint32_t*)0x200000002de8 = 7; *(uint32_t*)0x200000002dec = 0x615d; memcpy((void*)0x200000002df0, "]F,[@%(", 7); *(uint64_t*)0x200000002df8 = 3; *(uint64_t*)0x200000002e00 = 4; *(uint32_t*)0x200000002e08 = 2; *(uint32_t*)0x200000002e0c = 5; memcpy((void*)0x200000002e10, "#*", 2); *(uint64_t*)0x200000002e18 = 6; *(uint64_t*)0x200000002e20 = 0xc; *(uint32_t*)0x200000002e28 = 1; *(uint32_t*)0x200000002e2c = 0x200; memset((void*)0x200000002e30, 33, 1); *(uint64_t*)0x200000002e38 = 2; *(uint64_t*)0x200000002e40 = 1; *(uint32_t*)0x200000002e48 = 3; *(uint32_t*)0x200000002e4c = 0xffff; memcpy((void*)0x200000002e50, "%[*", 3); *(uint64_t*)0x200000002e58 = 2; *(uint64_t*)0x200000002e60 = 1; *(uint32_t*)0x200000002e68 = 6; *(uint32_t*)0x200000002e6c = 0x10001; memset((void*)0x200000002e70, 187, 6); *(uint64_t*)0x200000002e78 = 2; *(uint64_t*)0x200000002e80 = 9; *(uint32_t*)0x200000002e88 = 3; *(uint32_t*)0x200000002e8c = 3; memcpy((void*)0x200000002e90, "\\$&", 3); *(uint64_t*)0x200000005be8 = 0x200000004380; *(uint32_t*)0x200000004380 = 0x280; *(uint32_t*)0x200000004384 = 0; *(uint64_t*)0x200000004388 = 7; *(uint64_t*)0x200000004390 = 1; *(uint64_t*)0x200000004398 = 2; *(uint64_t*)0x2000000043a0 = 0x9b; *(uint64_t*)0x2000000043a8 = 0xa; *(uint32_t*)0x2000000043b0 = 0x40; *(uint32_t*)0x2000000043b4 = 0x2b; *(uint64_t*)0x2000000043b8 = 1; *(uint64_t*)0x2000000043c0 = 0; *(uint64_t*)0x2000000043c8 = 0xf5; *(uint64_t*)0x2000000043d0 = 7; *(uint64_t*)0x2000000043d8 = 8; *(uint64_t*)0x2000000043e0 = 7; *(uint32_t*)0x2000000043e8 = 5; *(uint32_t*)0x2000000043ec = 9; *(uint32_t*)0x2000000043f0 = 0x1b; *(uint32_t*)0x2000000043f4 = 0xa000; *(uint32_t*)0x2000000043f8 = 4; *(uint32_t*)0x2000000043fc = r[10]; *(uint32_t*)0x200000004400 = r[12]; *(uint32_t*)0x200000004404 = 4; *(uint32_t*)0x200000004408 = 0x10000; *(uint32_t*)0x20000000440c = 0; *(uint64_t*)0x200000004410 = 4; *(uint64_t*)0x200000004418 = 6; *(uint32_t*)0x200000004420 = 0; *(uint32_t*)0x200000004424 = 0x7f; *(uint64_t*)0x200000004428 = 1; *(uint64_t*)0x200000004430 = 0; *(uint64_t*)0x200000004438 = 9; *(uint64_t*)0x200000004440 = 4; *(uint32_t*)0x200000004448 = 9; *(uint32_t*)0x20000000444c = 0x101; *(uint64_t*)0x200000004450 = 0; *(uint64_t*)0x200000004458 = 0x80; *(uint64_t*)0x200000004460 = 0x80000001; *(uint64_t*)0x200000004468 = 8; *(uint64_t*)0x200000004470 = 0x7fffffffffffffff; *(uint64_t*)0x200000004478 = 0xc14; *(uint32_t*)0x200000004480 = 7; *(uint32_t*)0x200000004484 = 2; *(uint32_t*)0x200000004488 = 5; *(uint32_t*)0x20000000448c = 0x1000; *(uint32_t*)0x200000004490 = 7; *(uint32_t*)0x200000004494 = r[13]; *(uint32_t*)0x200000004498 = r[16]; *(uint32_t*)0x20000000449c = 7; *(uint32_t*)0x2000000044a0 = 3; *(uint32_t*)0x2000000044a4 = 0; *(uint64_t*)0x2000000044a8 = 1; *(uint64_t*)0x2000000044b0 = 0x8000000000000000; *(uint32_t*)0x2000000044b8 = 0; *(uint32_t*)0x2000000044bc = 9; *(uint64_t*)0x2000000044c0 = 3; *(uint64_t*)0x2000000044c8 = 1; *(uint64_t*)0x2000000044d0 = 7; *(uint64_t*)0x2000000044d8 = 3; *(uint32_t*)0x2000000044e0 = 0x10000; *(uint32_t*)0x2000000044e4 = 0xfff; *(uint64_t*)0x2000000044e8 = 6; *(uint64_t*)0x2000000044f0 = 3; *(uint64_t*)0x2000000044f8 = 4; *(uint64_t*)0x200000004500 = 0xffffffff; *(uint64_t*)0x200000004508 = 5; *(uint64_t*)0x200000004510 = 1; *(uint32_t*)0x200000004518 = 0xcf; *(uint32_t*)0x20000000451c = 5; *(uint32_t*)0x200000004520 = 2; *(uint32_t*)0x200000004524 = 0x3000; *(uint32_t*)0x200000004528 = 0xf; *(uint32_t*)0x20000000452c = r[17]; *(uint32_t*)0x200000004530 = r[18]; *(uint32_t*)0x200000004534 = 0xdda; *(uint32_t*)0x200000004538 = 0x800; *(uint32_t*)0x20000000453c = 0; *(uint64_t*)0x200000004540 = 0; *(uint64_t*)0x200000004548 = 0x480; *(uint32_t*)0x200000004550 = 1; *(uint32_t*)0x200000004554 = 7; memset((void*)0x200000004558, 39, 1); *(uint64_t*)0x200000004560 = 3; *(uint64_t*)0x200000004568 = 0; *(uint64_t*)0x200000004570 = 6; *(uint64_t*)0x200000004578 = 6; *(uint32_t*)0x200000004580 = 0xae90; *(uint32_t*)0x200000004584 = 0x7fff; *(uint64_t*)0x200000004588 = 5; *(uint64_t*)0x200000004590 = 2; *(uint64_t*)0x200000004598 = 0xffff; *(uint64_t*)0x2000000045a0 = 0xb6; *(uint64_t*)0x2000000045a8 = 9; *(uint64_t*)0x2000000045b0 = 8; *(uint32_t*)0x2000000045b8 = 0x200; *(uint32_t*)0x2000000045bc = 3; *(uint32_t*)0x2000000045c0 = 6; *(uint32_t*)0x2000000045c4 = 0x6000; *(uint32_t*)0x2000000045c8 = 0xfffffff7; *(uint32_t*)0x2000000045cc = r[19]; *(uint32_t*)0x2000000045d0 = r[20]; *(uint32_t*)0x2000000045d4 = 4; *(uint32_t*)0x2000000045d8 = 6; *(uint32_t*)0x2000000045dc = 0; *(uint64_t*)0x2000000045e0 = 0; *(uint64_t*)0x2000000045e8 = 3; *(uint32_t*)0x2000000045f0 = 6; *(uint32_t*)0x2000000045f4 = 0xfffffffd; memcpy((void*)0x2000000045f8, "wlan0\000", 6); *(uint64_t*)0x200000005bf0 = 0x200000004740; *(uint32_t*)0x200000004740 = 0xa0; *(uint32_t*)0x200000004744 = 0xfffffffe; *(uint64_t*)0x200000004748 = 0x7fff; *(uint64_t*)0x200000004750 = 1; *(uint64_t*)0x200000004758 = 2; *(uint64_t*)0x200000004760 = 8; *(uint64_t*)0x200000004768 = 0x8001; *(uint32_t*)0x200000004770 = 0x9000; *(uint32_t*)0x200000004774 = 0; *(uint64_t*)0x200000004778 = 3; *(uint64_t*)0x200000004780 = 4; *(uint64_t*)0x200000004788 = 0x4283; *(uint64_t*)0x200000004790 = 6; *(uint64_t*)0x200000004798 = 7; *(uint64_t*)0x2000000047a0 = 1; *(uint32_t*)0x2000000047a8 = 4; *(uint32_t*)0x2000000047ac = 0x8000; *(uint32_t*)0x2000000047b0 = 0x7f; *(uint32_t*)0x2000000047b4 = 0x2000; *(uint32_t*)0x2000000047b8 = 0xa; *(uint32_t*)0x2000000047bc = r[22]; *(uint32_t*)0x2000000047c0 = r[24]; *(uint32_t*)0x2000000047c4 = 2; *(uint32_t*)0x2000000047c8 = 9; *(uint32_t*)0x2000000047cc = 0; *(uint64_t*)0x2000000047d0 = 0; *(uint32_t*)0x2000000047d8 = 0; *(uint32_t*)0x2000000047dc = 0; *(uint64_t*)0x200000005bf8 = 0x200000004800; *(uint32_t*)0x200000004800 = 0x20; *(uint32_t*)0x200000004804 = 0; *(uint64_t*)0x200000004808 = 0xa; *(uint32_t*)0x200000004810 = 8; *(uint32_t*)0x200000004814 = 0; *(uint32_t*)0x200000004818 = 0; *(uint32_t*)0x20000000481c = 0; *(uint64_t*)0x200000005c00 = 0x200000005a40; *(uint32_t*)0x200000005a40 = 0x130; *(uint32_t*)0x200000005a44 = 0; *(uint64_t*)0x200000005a48 = 0x800; *(uint64_t*)0x200000005a50 = 0x10000000; *(uint32_t*)0x200000005a58 = 9; *(uint32_t*)0x200000005a5c = 0; memset((void*)0x200000005a60, 0, 16); *(uint32_t*)0x200000005a70 = 4; *(uint32_t*)0x200000005a74 = 0xfffffff9; *(uint64_t*)0x200000005a78 = 8; *(uint32_t*)0x200000005a80 = 0xd; *(uint32_t*)0x200000005a84 = r[25]; *(uint32_t*)0x200000005a88 = r[27]; *(uint16_t*)0x200000005a8c = 0x4000; memset((void*)0x200000005a8e, 0, 2); *(uint64_t*)0x200000005a90 = 0xe; *(uint64_t*)0x200000005a98 = 1; *(uint64_t*)0x200000005aa0 = 9; *(uint64_t*)0x200000005aa8 = 4; *(uint64_t*)0x200000005ab0 = 0x75; *(uint32_t*)0x200000005ab8 = 0x10; *(uint32_t*)0x200000005abc = 0; *(uint64_t*)0x200000005ac0 = 0; *(uint32_t*)0x200000005ac8 = 0x2a; *(uint32_t*)0x200000005acc = 0; *(uint64_t*)0x200000005ad0 = 4; *(uint32_t*)0x200000005ad8 = 0x647; *(uint32_t*)0x200000005adc = 0; *(uint64_t*)0x200000005ae0 = 8; *(uint32_t*)0x200000005ae8 = 0xfffffffa; *(uint32_t*)0x200000005aec = 0; *(uint32_t*)0x200000005af0 = 4; *(uint32_t*)0x200000005af4 = 9; *(uint32_t*)0x200000005af8 = 0xf1; *(uint32_t*)0x200000005afc = 7; memset((void*)0x200000005b00, 0, 112); syz_fuse_handle_req(/*fd=*/r[6], /*buf=*/0x200000000780, /*len=*/0x2000, /*res=*/0x200000005b80); res = syscall(__NR_socket, /*domain=*/0x10ul, /*type=*/3ul, /*proto=*/0x10); if (res != -1) r[28] = res; memcpy((void*)0x200000005c40, "SEG6\000", 5); syz_genetlink_get_family_id(/*name=*/0x200000005c40, /*fd=*/r[28]); syz_init_net_socket(/*domain=*/0x24, /*type=*/2, /*proto=*/0); res = -1; res = syz_io_uring_complete(/*ring_ptr=*/0); if (res != -1) r[29] = res; *(uint32_t*)0x200000005c84 = 0x9c5d; *(uint32_t*)0x200000005c88 = 2; *(uint32_t*)0x200000005c8c = 1; *(uint32_t*)0x200000005c90 = 0x253; *(uint32_t*)0x200000005c98 = r[15]; memset((void*)0x200000005c9c, 0, 12); res = -1; res = syz_io_uring_setup(/*entries=*/0x19f7, /*params=*/0x200000005c80, /*ring_ptr=*/0x200000005d00, /*sqes_ptr=*/0x200000005d40); if (res != -1) { r[30] = *(uint64_t*)0x200000005d00; r[31] = *(uint64_t*)0x200000005d40; } *(uint8_t*)0x200000005dc0 = 0xb; *(uint8_t*)0x200000005dc1 = 0x28; *(uint16_t*)0x200000005dc2 = 0; *(uint32_t*)0x200000005dc4 = 0; *(uint64_t*)0x200000005dc8 = 3; *(uint64_t*)0x200000005dd0 = 0x200000005d80; *(uint64_t*)0x200000005d80 = 0; *(uint64_t*)0x200000005d88 = 0; *(uint32_t*)0x200000005dd8 = 1; *(uint32_t*)0x200000005ddc = 0x10; *(uint64_t*)0x200000005de0 = 1; *(uint16_t*)0x200000005de8 = 0; *(uint16_t*)0x200000005dea = 0; memset((void*)0x200000005dec, 0, 20); syz_io_uring_submit(/*ring_ptr=*/r[30], /*sqes_ptr=*/r[31], /*sqe=*/0x200000005dc0); res = -1; res = syz_kvm_setup_syzos_vm(/*fd=*/r[15], /*usermem=*/0x200000bff000); if (res != -1) r[32] = res; *(uint64_t*)0x200000005e80 = 0; *(uint64_t*)0x200000005e88 = 0x200000005e00; *(uint64_t*)0x200000005e00 = 0x12c; *(uint64_t*)0x200000005e08 = 0x18; *(uint64_t*)0x200000005e10 = 0; *(uint64_t*)0x200000005e18 = 0; *(uint64_t*)0x200000005e20 = 0x18; *(uint64_t*)0x200000005e28 = 4; *(uint64_t*)0x200000005e30 = 0x12d; *(uint64_t*)0x200000005e38 = 0x18; *(uint64_t*)0x200000005e40 = 2; *(uint64_t*)0x200000005e90 = 0x48; syz_kvm_add_vcpu(/*vm=*/r[32], /*text=*/0x200000005e80); *(uint64_t*)0x200000006100 = 0; *(uint64_t*)0x200000006108 = 0x200000005ec0; memcpy((void*)0x200000005ec0, 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560); *(uint64_t*)0x200000006110 = 0x230; *(uint64_t*)0x200000006140 = 1; *(uint64_t*)0x200000006148 = 7; syz_kvm_setup_cpu(/*fd=*/r[14], /*cpufd=*/r[29], /*usermem=*/0x200000c37000, /*text=*/0x200000006100, /*ntext=*/1, /*flags=KVM_SETUP_PPC64_LE*/1, /*opts=*/0x200000006140, /*nopt=*/1); syz_kvm_setup_syzos_vm(/*fd=*/r[29], /*usermem=*/0x200000c00000); *(uint32_t*)0x200000006180 = 0; syz_memcpy_off(/*ring_ptr=*/r[30], /*flag_off=SQ_FLAGS_OFFSET*/0x114, /*src=*/0x200000006180, /*src_off=*/0, /*nbytes=*/4); *(uint64_t*)0x200000006240 = 5; res = syscall(__NR_socketcall, /*call=*/1ul, /*args=*/0x200000006240ul); if (res != -1) r[33] = res; *(uint32_t*)0x200000006340 = 0xfffffffa; *(uint32_t*)0x200000006344 = r[11]; *(uint32_t*)0x200000006348 = r[27]; *(uint32_t*)0x20000000634c = 3; *(uint32_t*)0x200000006350 = 0xffff; *(uint32_t*)0x200000006354 = 0xe6b; *(uint16_t*)0x200000006358 = 7; *(uint32_t*)0x20000000635c = 0; *(uint64_t*)0x200000006360 = 0x357b; *(uint64_t*)0x200000006368 = 3; *(uint64_t*)0x200000006370 = 0x8000000000000000; *(uint32_t*)0x200000006378 = 0x74; *(uint32_t*)0x20000000637c = r[21]; *(uint16_t*)0x200000006380 = 0xc0b; *(uint16_t*)0x200000006382 = 0; *(uint64_t*)0x200000006388 = 0x200000006280; memcpy((void*)0x200000006280, "\x70\x10\x15\x9f\x68\xd5\xae\x90\x71\x37\xfa\x70\xd2\x86\xa1\x8b\xa4\x83\x48\xf8\x8d\x1f\xa0\x97\xcf\xe8\x2b\xb9\x55\x9e\x66\xc9\x7b\x4c\xcf\x3a\xcd\x9c\xe2\x40\x54\x49\x07\xf4\x53\x81\x70\xe4\x5e\x0c\x6d\xe8\xad\xfb\x6a\xe9\x4e\xd4\x4b\x61\x6a\x63\x73\x78\x14\xf1\x89\x44\x73\xd9\x51\x9f\x21\x30\xe8\xa0\xe0\x61\xc9\x6e\x46\xa9\x9a\x53\x16\xe4\x6b\x6b\x46\x13\x48\xbb\x03\xdd\xda\xd7\x06\x75\xbc\xda\x59\x21\xbd\xb5\x03\x8c\xc7\xdc\xad\xe7\xba\x3e\x10\x6c\xf3\x15\xe2\xad\x48\x81\x8a\x62\xc7", 123); *(uint64_t*)0x200000006390 = 0x200000006300; memcpy((void*)0x200000006300, "\x13\x68\x24\x8a\xd9\x08\xeb\x42\x50\x81\x23\x9c\x0a\x10\xa5\x14\xef\x06\xf1\x6f\xa3\x8b\xc5\x2b\x0f\x03\xb0\x4d\x36\xf5\x44\x26\x3c\xb4\xa0\xa3\xff\xbb\xaf\xa8\x00\x89\xcf\x8b\x02\x84\x1d\xf4\x33\xc6\xb9\x7d\xa8\xfb\xfe\x28\x5f\xcc\xd0\x5a\xd4", 61); res = syscall(__NR_shmctl, /*shmid=*/0x80000000, /*cmd=*/0xeul, /*buf=*/0x200000006340ul); if (res != -1) { r[34] = *(uint32_t*)0x200000006348; r[35] = *(uint32_t*)0x20000000637c; } memcpy((void*)0x2000000061c0, "fuse\000", 5); memcpy((void*)0x200000006200, "./file0\000", 8); memcpy((void*)0x2000000063c0, "fd", 2); *(uint8_t*)0x2000000063c2 = 0x3d; sprintf((char*)0x2000000063c3, "0x%016llx", (long long)r[33]); *(uint8_t*)0x2000000063d5 = 0x2c; memcpy((void*)0x2000000063d6, "rootmode", 8); *(uint8_t*)0x2000000063de = 0x3d; sprintf((char*)0x2000000063df, "%023llo", (long long)0x1000); *(uint8_t*)0x2000000063f6 = 0x2c; memcpy((void*)0x2000000063f7, "user_id", 7); *(uint8_t*)0x2000000063fe = 0x3d; sprintf((char*)0x2000000063ff, "%020llu", (long long)r[23]); *(uint8_t*)0x200000006413 = 0x2c; memcpy((void*)0x200000006414, "group_id", 8); *(uint8_t*)0x20000000641c = 0x3d; sprintf((char*)0x20000000641d, "%020llu", (long long)r[34]); *(uint8_t*)0x200000006431 = 0x2c; memcpy((void*)0x200000006432, "blksize", 7); *(uint8_t*)0x200000006439 = 0x3d; sprintf((char*)0x20000000643a, "0x%016llx", (long long)0x600); *(uint8_t*)0x20000000644c = 0x2c; memcpy((void*)0x20000000644d, "max_read", 8); *(uint8_t*)0x200000006455 = 0x3d; sprintf((char*)0x200000006456, "0x%016llx", (long long)0); *(uint8_t*)0x200000006468 = 0x2c; memcpy((void*)0x200000006469, "blksize", 7); *(uint8_t*)0x200000006470 = 0x3d; sprintf((char*)0x200000006471, "0x%016llx", (long long)0x1e00); *(uint8_t*)0x200000006483 = 0x2c; memcpy((void*)0x200000006484, "max_read", 8); *(uint8_t*)0x20000000648c = 0x3d; sprintf((char*)0x20000000648d, "0x%016llx", (long long)0x100000001); *(uint8_t*)0x20000000649f = 0x2c; memcpy((void*)0x2000000064a0, "default_permissions", 19); *(uint8_t*)0x2000000064b3 = 0x2c; memcpy((void*)0x2000000064b4, "default_permissions", 19); *(uint8_t*)0x2000000064c7 = 0x2c; memcpy((void*)0x2000000064c8, "euid<", 5); sprintf((char*)0x2000000064cd, "%020llu", (long long)r[13]); *(uint8_t*)0x2000000064e1 = 0x2c; memcpy((void*)0x2000000064e2, "subj_user", 9); *(uint8_t*)0x2000000064eb = 0x3d; memset((void*)0x2000000064ec, 44, 1); *(uint8_t*)0x2000000064ed = 0x2c; memcpy((void*)0x2000000064ee, "uid<", 4); sprintf((char*)0x2000000064f2, "%020llu", (long long)r[26]); *(uint8_t*)0x200000006506 = 0x2c; memcpy((void*)0x200000006507, "audit", 5); *(uint8_t*)0x20000000650c = 0x2c; memcpy((void*)0x20000000650d, "dont_measure", 12); *(uint8_t*)0x200000006519 = 0x2c; *(uint8_t*)0x20000000651a = 0; memcpy((void*)0x200000006540, "\xd3\xaa\x92", 3); syz_mount_image(/*fs=*/0x2000000061c0, /*dir=*/0x200000006200, /*flags=MS_NOATIME*/0x400, /*opts=*/0x2000000063c0, /*chdir=*/0, /*size=*/0, /*img=*/0x200000006540); memcpy((void*)0x200000006580, "/dev/i2c-#\000", 11); syz_open_dev(/*dev=*/0x200000006580, /*id=*/0x800, /*flags=O_NOATIME*/0x40000); memcpy((void*)0x2000000065c0, "cgroup\000", 7); syz_open_procfs(/*pid=*/r[5], /*file=*/0x2000000065c0); syz_open_pts(/*fd=*/r[14], /*flags=O_TRUNC|O_WRONLY*/0x201); syz_pidfd_open(/*pid=*/r[35], /*flags=*/0); res = syscall(__NR_pkey_alloc, /*flags=*/0ul, /*val=PKEY_DISABLE_WRITE*/2ul); if (res != -1) r[36] = res; syz_pkey_set(/*key=*/r[36], /*val=*/0); syz_socket_connect_nvme_tcp(); *(uint8_t*)0x200000006600 = 0x12; *(uint8_t*)0x200000006601 = 1; *(uint16_t*)0x200000006602 = 0x310; *(uint8_t*)0x200000006604 = 0xf; *(uint8_t*)0x200000006605 = 0x36; *(uint8_t*)0x200000006606 = 0x49; *(uint8_t*)0x200000006607 = 8; *(uint16_t*)0x200000006608 = 0x7d0; *(uint16_t*)0x20000000660a = 0x4101; *(uint16_t*)0x20000000660c = 0x4624; *(uint8_t*)0x20000000660e = 1; *(uint8_t*)0x20000000660f = 2; *(uint8_t*)0x200000006610 = 3; *(uint8_t*)0x200000006611 = 1; *(uint8_t*)0x200000006612 = 9; *(uint8_t*)0x200000006613 = 2; *(uint16_t*)0x200000006614 = 0x4f2; *(uint8_t*)0x200000006616 = 3; *(uint8_t*)0x200000006617 = 1; *(uint8_t*)0x200000006618 = 0xa2; *(uint8_t*)0x200000006619 = 0x40; *(uint8_t*)0x20000000661a = 0x64; *(uint8_t*)0x20000000661b = 9; *(uint8_t*)0x20000000661c = 4; *(uint8_t*)0x20000000661d = 0xc2; *(uint8_t*)0x20000000661e = 7; *(uint8_t*)0x20000000661f = 0xa; *(uint8_t*)0x200000006620 = 0x50; *(uint8_t*)0x200000006621 = 0xb3; *(uint8_t*)0x200000006622 = 0x17; *(uint8_t*)0x200000006623 = 7; *(uint8_t*)0x200000006624 = 9; *(uint8_t*)0x200000006625 = 0x21; *(uint16_t*)0x200000006626 = 3; *(uint8_t*)0x200000006628 = 0xdf; *(uint8_t*)0x200000006629 = 1; *(uint8_t*)0x20000000662a = 0x22; *(uint16_t*)0x20000000662b = 0x238; *(uint8_t*)0x20000000662d = 7; *(uint8_t*)0x20000000662e = 0x24; *(uint8_t*)0x20000000662f = 1; *(uint8_t*)0x200000006630 = 2; *(uint8_t*)0x200000006631 = 2; *(uint16_t*)0x200000006632 = 2; *(uint8_t*)0x200000006634 = 0xb; *(uint8_t*)0x200000006635 = 0x24; *(uint8_t*)0x200000006636 = 2; *(uint8_t*)0x200000006637 = 1; *(uint8_t*)0x200000006638 = 0xde; *(uint8_t*)0x200000006639 = 2; *(uint8_t*)0x20000000663a = 0; *(uint8_t*)0x20000000663b = 5; memcpy((void*)0x20000000663c, "\x11\x6d\xf7", 3); *(uint8_t*)0x20000000663f = 0xa; *(uint8_t*)0x200000006640 = 0x24; *(uint8_t*)0x200000006641 = 2; *(uint8_t*)0x200000006642 = 2; *(uint16_t*)0x200000006643 = 8; *(uint16_t*)0x200000006645 = 3; *(uint8_t*)0x200000006647 = 7; memset((void*)0x200000006648, 59, 1); *(uint8_t*)0x200000006649 = 0xa; *(uint8_t*)0x20000000664a = 0x24; *(uint8_t*)0x20000000664b = 2; *(uint8_t*)0x20000000664c = 1; *(uint8_t*)0x20000000664d = 4; *(uint8_t*)0x20000000664e = 3; *(uint8_t*)0x20000000664f = 0x1a; *(uint8_t*)0x200000006650 = 9; memcpy((void*)0x200000006651, "\x0f\x58", 2); *(uint8_t*)0x200000006653 = 0xc; *(uint8_t*)0x200000006654 = 0x24; *(uint8_t*)0x200000006655 = 2; *(uint8_t*)0x200000006656 = 2; *(uint16_t*)0x200000006657 = 0xf270; *(uint16_t*)0x200000006659 = 0x100; *(uint8_t*)0x20000000665b = 7; memcpy((void*)0x20000000665c, "\x31\x29\xf9", 3); *(uint8_t*)0x20000000665f = 0xb; *(uint8_t*)0x200000006660 = 0x24; *(uint8_t*)0x200000006661 = 2; *(uint8_t*)0x200000006662 = 1; *(uint8_t*)0x200000006663 = 1; *(uint8_t*)0x200000006664 = 3; *(uint8_t*)0x200000006665 = 0xf9; *(uint8_t*)0x200000006666 = 0xa3; memcpy((void*)0x200000006667, "\x54\x06\x13", 3); *(uint8_t*)0x20000000666a = 9; *(uint8_t*)0x20000000666b = 5; *(uint8_t*)0x20000000666c = 3; *(uint8_t*)0x20000000666d = 0x38; *(uint16_t*)0x20000000666e = 8; *(uint8_t*)0x200000006670 = 1; *(uint8_t*)0x200000006671 = 0xf9; *(uint8_t*)0x200000006672 = 0; *(uint8_t*)0x200000006673 = 7; *(uint8_t*)0x200000006674 = 0x25; *(uint8_t*)0x200000006675 = 1; *(uint8_t*)0x200000006676 = 1; *(uint8_t*)0x200000006677 = 0x80; *(uint16_t*)0x200000006678 = 0xffb0; *(uint8_t*)0x20000000667a = 0x62; *(uint8_t*)0x20000000667b = 0xe; memcpy((void*)0x20000000667c, "\x0b\xef\x67\x9d\x63\x59\xd7\x1a\x14\x4a\x38\xa2\x28\x34\xd1\x2b\xd1\x9c\x60\xb6\x58\x29\xf4\x4e\xbe\x6b\x12\x58\xa3\xa7\xa0\xcc\x60\xf3\x00\x07\xc2\xc4\xd2\xa3\xcb\x88\xfb\x6b\xeb\x58\x0e\x62\x81\x47\x11\x4f\xfc\x6a\x4e\x39\xb1\x9e\x71\x8f\xc2\xcd\x0f\xa5\xaf\x68\x86\x49\xab\xe3\xdb\x58\xd0\x70\x72\x03\x28\x3b\x6b\xdc\xa0\x5f\x49\xfb\x16\xb3\x61\x8f\xcf\x4d\xd0\x1c\xb2\xef\x35\x09", 96); *(uint8_t*)0x2000000066dc = 9; *(uint8_t*)0x2000000066dd = 5; *(uint8_t*)0x2000000066de = 4; *(uint8_t*)0x2000000066df = 0; *(uint16_t*)0x2000000066e0 = 0x20; *(uint8_t*)0x2000000066e2 = 1; *(uint8_t*)0x2000000066e3 = 2; *(uint8_t*)0x2000000066e4 = 5; *(uint8_t*)0x2000000066e5 = 0x4e; *(uint8_t*)0x2000000066e6 = 0xa; memcpy((void*)0x2000000066e7, "\xaa\xde\x99\xcc\xf3\x48\x06\x1a\xd9\x22\x25\xe0\x5a\x39\x6a\x2e\xbe\x89\x2c\xa6\x5d\xe9\xef\xa6\x65\x82\x1e\x34\x20\x0c\x5c\xaa\x94\x3c\x9b\x1a\x3e\xb1\x08\x28\xe1\x38\x15\xe6\x12\x0c\x47\x87\xa4\xd3\x95\xb1\xe3\x2a\x8b\xa1\xff\xb9\x91\x37\x58\x79\xd5\x17\x86\x2d\xe6\xe9\xcb\x6f\x72\x33\x35\xdd\x15\x6a", 76); *(uint8_t*)0x200000006733 = 9; *(uint8_t*)0x200000006734 = 5; *(uint8_t*)0x200000006735 = 3; *(uint8_t*)0x200000006736 = 0xc; *(uint16_t*)0x200000006737 = 0x3ff; *(uint8_t*)0x200000006739 = 7; *(uint8_t*)0x20000000673a = 0; *(uint8_t*)0x20000000673b = 0x7f; *(uint8_t*)0x20000000673c = 0x33; *(uint8_t*)0x20000000673d = 0xe; memcpy((void*)0x20000000673e, "\x08\xb9\x28\xc5\x63\xb3\xfb\xc1\x36\xbe\xaf\x22\xbf\x46\xe0\xcf\x55\xe3\xf2\x62\x48\x5f\x30\xb2\x8a\x3f\x9a\x3e\xc9\x01\xce\x80\x66\xc6\x78\x8d\x46\x95\x26\xc5\x5b\xf0\xc2\xb3\xca\x50\x05\x53\x9a", 49); *(uint8_t*)0x20000000676f = 9; *(uint8_t*)0x200000006770 = 5; *(uint8_t*)0x200000006771 = 0xb; *(uint8_t*)0x200000006772 = 4; *(uint16_t*)0x200000006773 = 0x3ff; *(uint8_t*)0x200000006775 = 3; *(uint8_t*)0x200000006776 = 0x40; *(uint8_t*)0x200000006777 = 0x7f; *(uint8_t*)0x200000006778 = 7; *(uint8_t*)0x200000006779 = 0x25; *(uint8_t*)0x20000000677a = 1; *(uint8_t*)0x20000000677b = 0x87; *(uint8_t*)0x20000000677c = 9; *(uint16_t*)0x20000000677d = 0x4e; *(uint8_t*)0x20000000677f = 0xcb; *(uint8_t*)0x200000006780 = 0x11; memcpy((void*)0x200000006781, "\x3b\x9d\xca\xcc\x67\x90\x86\xd7\x8f\x92\x7a\xb6\x34\x93\x5a\x18\x81\x3b\x23\xcc\xef\xfe\xa6\x9b\x63\x0a\xa9\x7c\xc4\x69\x90\x7a\xfa\xc2\xa3\x03\x27\xad\xeb\x90\x1d\x9f\xb9\x00\xad\x82\x13\x80\x98\xcb\xff\x5f\xed\x7f\xee\x2c\x7d\x70\x12\x90\xce\x4a\xd0\x20\xa9\xda\x29\x67\x5f\x8f\x05\x13\x99\x87\x9d\xb5\x70\x22\xb8\x9c\x99\x01\x20\x51\x3a\xaa\x70\xc5\x18\x47\xb1\x28\xdd\x73\xbd\xea\x25\xcb\xb5\x45\xc1\xae\x83\x52\x02\x4c\xa9\x3c\xd7\xea\x88\x1c\xbb\x09\x20\xee\xde\xf0\x72\xef\xe9\xda\x61\xb7\xbd\x77\xa3\xc0\x85\xd7\x12\xc1\x42\xca\x88\xc3\x9f\x8e\xdd\x17\xd6\xfb\x9a\x7e\xf8\xd0\xfa\xd5\xa1\x5a\x33\x3e\x7e\xd0\x5e\x7e\x9a\xe6\xe2\xa4\x64\xc3\x15\x9a\xb1\xa6\x0e\x33\xaf\xbf\x29\xa2\xf6\x78\xc8\xc9\xe2\xf8\xf7\xa8\xd0\x3d\x55\x82\x52\x9b\x27\x7b\x4b\xe8\x55\x83\xe5\xd8\x1b\xc9\x57\x49\x77\x30\x42", 201); *(uint8_t*)0x20000000684a = 9; *(uint8_t*)0x20000000684b = 5; *(uint8_t*)0x20000000684c = 1; *(uint8_t*)0x20000000684d = 3; *(uint16_t*)0x20000000684e = 8; *(uint8_t*)0x200000006850 = 0xe; *(uint8_t*)0x200000006851 = 8; *(uint8_t*)0x200000006852 = 0x7f; *(uint8_t*)0x200000006853 = 0x72; *(uint8_t*)0x200000006854 = 6; memcpy((void*)0x200000006855, "\x6e\xe2\x41\x04\x69\xb7\xa8\xb2\x3e\x32\x55\xa5\x54\xb6\x3d\x5b\xeb\x1b\x34\xb4\x87\x18\x94\xe3\xdf\x69\xe7\x55\x8c\xe5\x6c\xc8\x3b\x83\xae\x1a\xc9\xd1\xde\xc0\x88\x2d\x04\x0a\x78\x01\xa3\x00\xc7\xea\xc2\x6d\x78\xd2\xda\xff\x6b\xd4\x7c\xac\xa5\x00\xd4\x6c\x1b\x5a\x0b\x9e\x1a\xda\x0e\x7b\x60\x6b\x6f\xd6\xb3\x9d\xb8\x1c\x7c\x95\x4c\x04\xd4\xed\xe9\x80\xea\x2c\xa8\x0b\x11\x3b\xdb\x4b\xe7\x47\xe1\xb6\xdc\x92\x81\xd7\x7e\x85\x68\x3a\xaa\xc6\x53\x4c", 112); *(uint8_t*)0x2000000068c5 = 9; *(uint8_t*)0x2000000068c6 = 5; *(uint8_t*)0x2000000068c7 = 0xb; *(uint8_t*)0x2000000068c8 = 0xc; *(uint16_t*)0x2000000068c9 = 0x60e1; *(uint8_t*)0x2000000068cb = 0; *(uint8_t*)0x2000000068cc = 1; *(uint8_t*)0x2000000068cd = 7; *(uint8_t*)0x2000000068ce = 9; *(uint8_t*)0x2000000068cf = 5; *(uint8_t*)0x2000000068d0 = 0; *(uint8_t*)0x2000000068d1 = 0; *(uint16_t*)0x2000000068d2 = 0x10; *(uint8_t*)0x2000000068d4 = 5; *(uint8_t*)0x2000000068d5 = 1; *(uint8_t*)0x2000000068d6 = 0x77; *(uint8_t*)0x2000000068d7 = 9; *(uint8_t*)0x2000000068d8 = 5; *(uint8_t*)0x2000000068d9 = 5; *(uint8_t*)0x2000000068da = 0; *(uint16_t*)0x2000000068db = 0x208; *(uint8_t*)0x2000000068dd = 0x1b; *(uint8_t*)0x2000000068de = 9; *(uint8_t*)0x2000000068df = 7; *(uint8_t*)0x2000000068e0 = 9; *(uint8_t*)0x2000000068e1 = 5; *(uint8_t*)0x2000000068e2 = 0xf; *(uint8_t*)0x2000000068e3 = 0; *(uint16_t*)0x2000000068e4 = 0x40; *(uint8_t*)0x2000000068e6 = 0x30; *(uint8_t*)0x2000000068e7 = 5; *(uint8_t*)0x2000000068e8 = 7; *(uint8_t*)0x2000000068e9 = 0x50; *(uint8_t*)0x2000000068ea = 6; memcpy((void*)0x2000000068eb, "\x01\x1d\xaf\x9a\xd3\xae\xa9\x56\xd0\x18\x4e\x89\x07\xd7\xb0\xb0\xa6\xaa\x9e\x92\x1a\xc6\x4d\x7a\x9e\x5a\x0c\xe5\xb5\xe0\xaf\xb4\x78\x68\xc9\xc4\xa7\x6b\x65\x09\x83\x5b\xf9\xee\x45\xa7\x89\x1e\xaa\xd1\x72\xa8\x75\x63\x4f\x7f\x36\x26\x01\x24\x66\x9b\x2d\x1b\x04\xc2\xfd\xa3\x8c\xc9\x36\x92\x1c\xb5\x61\x24\x5e\xfa", 78); *(uint8_t*)0x200000006939 = 0xb7; *(uint8_t*)0x20000000693a = 0x21; memcpy((void*)0x20000000693b, "\x53\x54\x2a\x37\x44\x9c\x9d\x1a\x4e\x69\x6a\x99\x52\x7d\x5a\xd5\xbd\xad\x1c\x7e\x72\x41\x28\xdf\x50\x29\x5a\xa0\xc6\x14\x01\xca\x6c\xd5\xcd\x35\x69\x77\xf6\x17\xe8\xb1\x14\x48\x46\x62\x69\x11\x6a\xf9\x3b\x9d\xce\x05\xde\xd4\x87\x92\x71\x9f\x65\xbf\xa9\x1d\xa1\x6b\x85\xee\x1d\x62\x36\x08\x4d\x81\x70\xf9\x7c\x0a\x74\xf1\x02\x66\x3c\x64\x5b\x0e\xe1\xb0\xfa\x79\x04\xe6\x46\x43\x8d\x8b\x16\x21\x86\x04\x56\x1c\x1a\xbb\x98\x28\x9e\x3e\xcb\xa8\x8e\x78\xf6\x73\x61\x47\x87\x74\x46\x2a\x4d\x82\x74\x96\x46\x45\x20\x04\xb2\x48\x20\x82\xe9\xc1\xb2\xf2\x97\x24\x19\xf6\xf7\x52\xe1\xbe\xc5\xe1\x92\x5f\xce\x21\x5e\xdb\x82\x65\x34\x4d\xa8\x5b\x85\x16\x4d\xb3\xc6\x33\xe4\xe4\x31\xfe\xc4\xc6\x09\x66\x4e\xac\x2b\x6b\x1f\x5f\x7b\xdc\x10", 181); *(uint8_t*)0x2000000069f0 = 9; *(uint8_t*)0x2000000069f1 = 5; *(uint8_t*)0x2000000069f2 = 0xc; *(uint8_t*)0x2000000069f3 = 0x10; *(uint16_t*)0x2000000069f4 = 0x10; *(uint8_t*)0x2000000069f6 = 3; *(uint8_t*)0x2000000069f7 = 0xf9; *(uint8_t*)0x2000000069f8 = -1; *(uint8_t*)0x2000000069f9 = 0xba; *(uint8_t*)0x2000000069fa = 0x23; memcpy((void*)0x2000000069fb, "\x5c\x48\xa5\x1f\x46\xfa\x07\x8d\x84\xce\x43\x4e\x72\x2a\x7f\xa4\xe7\x02\x1a\xe9\xd9\xb7\x66\x77\x36\x6d\xe6\xa1\x0a\xb3\xe9\x4e\x09\x69\xd7\xfc\x2a\x24\x53\x6e\x11\x50\xd9\x46\x72\xc5\x41\x8b\x02\x95\x1d\xef\x7e\x20\xc7\xdf\xe0\xaa\x26\xad\xbf\x0b\xfd\x8f\x6d\xd3\x51\xfa\x30\x99\x07\x13\x53\x71\x34\xaf\x9c\x14\xfa\x84\xde\xe2\xb9\x5a\xf8\xe1\x34\x54\x2b\x5a\x1a\xd5\x40\x32\x9a\x97\xcb\xdd\x1a\x24\x22\xf1\x3e\x6e\x03\xb4\x9f\x71\x05\xa6\xbf\x49\x00\xea\x72\x3f\xbe\x14\xf2\x1d\x18\x2a\xee\xf2\xcf\x51\x62\x59\x1f\x8b\xd3\x8b\x85\xd4\x5d\x72\x3c\xef\x02\x13\x2b\x5e\x45\x46\x7d\xd8\xd4\x30\xc3\x78\xb8\xbf\x2d\x98\x40\x32\x67\x01\x03\x79\xde\x7b\xd0\x4c\x80\x0d\xfd\x5f\xae\x0c\x0d\xda\xc0\xb5\xcf\xfd\xe9\x8c\xa4\x00\xdc\xe3\x0d\xdd", 184); *(uint8_t*)0x200000006ab3 = 9; *(uint8_t*)0x200000006ab4 = 4; *(uint8_t*)0x200000006ab5 = 0xfc; *(uint8_t*)0x200000006ab6 = 4; *(uint8_t*)0x200000006ab7 = 1; *(uint8_t*)0x200000006ab8 = -1; *(uint8_t*)0x200000006ab9 = 6; *(uint8_t*)0x200000006aba = 0x39; *(uint8_t*)0x200000006abb = 0xc; *(uint8_t*)0x200000006abc = 9; *(uint8_t*)0x200000006abd = 5; *(uint8_t*)0x200000006abe = 0; *(uint8_t*)0x200000006abf = 2; *(uint16_t*)0x200000006ac0 = 0x400; *(uint8_t*)0x200000006ac2 = 9; *(uint8_t*)0x200000006ac3 = 0xdf; *(uint8_t*)0x200000006ac4 = 2; *(uint8_t*)0x200000006ac5 = 7; *(uint8_t*)0x200000006ac6 = 0x25; *(uint8_t*)0x200000006ac7 = 1; *(uint8_t*)0x200000006ac8 = 3; *(uint8_t*)0x200000006ac9 = 8; *(uint16_t*)0x200000006aca = 0x8000; *(uint8_t*)0x200000006acc = 9; *(uint8_t*)0x200000006acd = 4; *(uint8_t*)0x200000006ace = 0x9d; *(uint8_t*)0x200000006acf = 1; *(uint8_t*)0x200000006ad0 = 3; *(uint8_t*)0x200000006ad1 = 0x48; *(uint8_t*)0x200000006ad2 = 0x48; *(uint8_t*)0x200000006ad3 = 0x40; *(uint8_t*)0x200000006ad4 = 0xa; *(uint8_t*)0x200000006ad5 = 9; *(uint8_t*)0x200000006ad6 = 5; *(uint8_t*)0x200000006ad7 = 1; *(uint8_t*)0x200000006ad8 = 0x10; *(uint16_t*)0x200000006ad9 = 0x40; *(uint8_t*)0x200000006adb = 2; *(uint8_t*)0x200000006adc = 0xf1; *(uint8_t*)0x200000006add = 0xc; *(uint8_t*)0x200000006ade = 7; *(uint8_t*)0x200000006adf = 0x25; *(uint8_t*)0x200000006ae0 = 1; *(uint8_t*)0x200000006ae1 = 0x81; *(uint8_t*)0x200000006ae2 = 0x81; *(uint16_t*)0x200000006ae3 = 5; *(uint8_t*)0x200000006ae5 = 9; *(uint8_t*)0x200000006ae6 = 5; *(uint8_t*)0x200000006ae7 = 7; *(uint8_t*)0x200000006ae8 = 8; *(uint16_t*)0x200000006ae9 = 0x40; *(uint8_t*)0x200000006aeb = 6; *(uint8_t*)0x200000006aec = 0; *(uint8_t*)0x200000006aed = 1; *(uint8_t*)0x200000006aee = 7; *(uint8_t*)0x200000006aef = 0x25; *(uint8_t*)0x200000006af0 = 1; *(uint8_t*)0x200000006af1 = 2; *(uint8_t*)0x200000006af2 = 0; *(uint16_t*)0x200000006af3 = 0x10; *(uint8_t*)0x200000006af5 = 6; *(uint8_t*)0x200000006af6 = 0xe; memcpy((void*)0x200000006af7, "\x55\x5d\xc7\x8c", 4); *(uint8_t*)0x200000006afb = 9; *(uint8_t*)0x200000006afc = 5; *(uint8_t*)0x200000006afd = 5; *(uint8_t*)0x200000006afe = 4; *(uint16_t*)0x200000006aff = 0x200; *(uint8_t*)0x200000006b01 = 9; *(uint8_t*)0x200000006b02 = 0x40; *(uint8_t*)0x200000006b03 = 3; *(uint32_t*)0x200000006c00 = 0xa; *(uint64_t*)0x200000006c04 = 0x200000006b40; *(uint8_t*)0x200000006b40 = 0xa; *(uint8_t*)0x200000006b41 = 6; *(uint16_t*)0x200000006b42 = 0x200; *(uint8_t*)0x200000006b44 = 0x3b; *(uint8_t*)0x200000006b45 = 5; *(uint8_t*)0x200000006b46 = 9; *(uint8_t*)0x200000006b47 = 0x40; *(uint8_t*)0x200000006b48 = 0xa4; *(uint8_t*)0x200000006b49 = 0; *(uint32_t*)0x200000006c0c = 0x30; *(uint64_t*)0x200000006c10 = 0x200000006b80; *(uint8_t*)0x200000006b80 = 5; *(uint8_t*)0x200000006b81 = 0xf; *(uint16_t*)0x200000006b82 = 0x30; *(uint8_t*)0x200000006b84 = 3; *(uint8_t*)0x200000006b85 = 3; *(uint8_t*)0x200000006b86 = 0x10; *(uint8_t*)0x200000006b87 = 0xb; *(uint8_t*)0x200000006b88 = 0x10; *(uint8_t*)0x200000006b89 = 0x10; *(uint8_t*)0x200000006b8a = 0xa; *(uint8_t*)0x200000006b8b = 0x1c; STORE_BY_BITMASK(uint32_t, , 0x200000006b8c, 1, 0, 5); STORE_BY_BITMASK(uint32_t, , 0x200000006b8c, 0x7ffffd3, 5, 27); *(uint16_t*)0x200000006b90 = 0xff00; *(uint16_t*)0x200000006b92 = 0x1fb; *(uint32_t*)0x200000006b94 = 0; *(uint8_t*)0x200000006b98 = 0x18; *(uint8_t*)0x200000006b99 = 0x10; *(uint8_t*)0x200000006b9a = 0xa; *(uint8_t*)0x200000006b9b = 0xf; STORE_BY_BITMASK(uint32_t, , 0x200000006b9c, 3, 0, 5); STORE_BY_BITMASK(uint32_t, , 0x200000006b9c, 8, 5, 27); *(uint16_t*)0x200000006ba0 = 0xff00; *(uint16_t*)0x200000006ba2 = 0xd00; *(uint32_t*)0x200000006ba4 = 0; *(uint32_t*)0x200000006ba8 = 0xffc0cf; *(uint32_t*)0x200000006bac = 0xff0000; *(uint32_t*)0x200000006c18 = 1; *(uint32_t*)0x200000006c1c = 4; *(uint64_t*)0x200000006c20 = 0x200000006bc0; *(uint8_t*)0x200000006bc0 = 4; *(uint8_t*)0x200000006bc1 = 3; *(uint16_t*)0x200000006bc2 = 0x42f; res = -1; res = syz_usb_connect(/*speed=USB_SPEED_HIGH*/3, /*dev_len=*/0x504, /*dev=*/0x200000006600, /*conn_descs=*/0x200000006c00); if (res != -1) r[37] = res; *(uint8_t*)0x200000006c40 = 0x12; *(uint8_t*)0x200000006c41 = 1; *(uint16_t*)0x200000006c42 = 0x200; *(uint8_t*)0x200000006c44 = -1; *(uint8_t*)0x200000006c45 = -1; *(uint8_t*)0x200000006c46 = -1; *(uint8_t*)0x200000006c47 = 0x40; *(uint16_t*)0x200000006c48 = 0xcf3; *(uint16_t*)0x200000006c4a = 0x9271; *(uint16_t*)0x200000006c4c = 0x108; *(uint8_t*)0x200000006c4e = 1; *(uint8_t*)0x200000006c4f = 2; *(uint8_t*)0x200000006c50 = 3; *(uint8_t*)0x200000006c51 = 1; *(uint8_t*)0x200000006c52 = 9; *(uint8_t*)0x200000006c53 = 2; *(uint16_t*)0x200000006c54 = 0x48; *(uint8_t*)0x200000006c56 = 1; *(uint8_t*)0x200000006c57 = 1; *(uint8_t*)0x200000006c58 = 0; *(uint8_t*)0x200000006c59 = 0x80; *(uint8_t*)0x200000006c5a = 0xfa; *(uint8_t*)0x200000006c5b = 9; *(uint8_t*)0x200000006c5c = 4; *(uint8_t*)0x200000006c5d = 0; *(uint8_t*)0x200000006c5e = 0; *(uint8_t*)0x200000006c5f = 6; *(uint8_t*)0x200000006c60 = -1; *(uint8_t*)0x200000006c61 = 0; *(uint8_t*)0x200000006c62 = 0; *(uint8_t*)0x200000006c63 = 0; *(uint8_t*)0x200000006c64 = 9; *(uint8_t*)0x200000006c65 = 5; *(uint8_t*)0x200000006c66 = 1; *(uint8_t*)0x200000006c67 = 2; *(uint16_t*)0x200000006c68 = 0x200; *(uint8_t*)0x200000006c6a = 0; *(uint8_t*)0x200000006c6b = 0; *(uint8_t*)0x200000006c6c = 0; *(uint8_t*)0x200000006c6d = 9; *(uint8_t*)0x200000006c6e = 5; *(uint8_t*)0x200000006c6f = 0x82; *(uint8_t*)0x200000006c70 = 2; *(uint16_t*)0x200000006c71 = 0x200; *(uint8_t*)0x200000006c73 = 0; *(uint8_t*)0x200000006c74 = 0; *(uint8_t*)0x200000006c75 = 0; *(uint8_t*)0x200000006c76 = 9; *(uint8_t*)0x200000006c77 = 5; *(uint8_t*)0x200000006c78 = 0x83; *(uint8_t*)0x200000006c79 = 3; *(uint16_t*)0x200000006c7a = 0x40; *(uint8_t*)0x200000006c7c = 1; *(uint8_t*)0x200000006c7d = 0; *(uint8_t*)0x200000006c7e = 0; *(uint8_t*)0x200000006c7f = 9; *(uint8_t*)0x200000006c80 = 5; *(uint8_t*)0x200000006c81 = 4; *(uint8_t*)0x200000006c82 = 3; *(uint16_t*)0x200000006c83 = 0x40; *(uint8_t*)0x200000006c85 = 1; *(uint8_t*)0x200000006c86 = 0; *(uint8_t*)0x200000006c87 = 0; *(uint8_t*)0x200000006c88 = 9; *(uint8_t*)0x200000006c89 = 5; *(uint8_t*)0x200000006c8a = 5; *(uint8_t*)0x200000006c8b = 2; *(uint16_t*)0x200000006c8c = 0x200; *(uint8_t*)0x200000006c8e = 0; *(uint8_t*)0x200000006c8f = 0; *(uint8_t*)0x200000006c90 = 0; *(uint8_t*)0x200000006c91 = 9; *(uint8_t*)0x200000006c92 = 5; *(uint8_t*)0x200000006c93 = 6; *(uint8_t*)0x200000006c94 = 2; *(uint16_t*)0x200000006c95 = 0x200; *(uint8_t*)0x200000006c97 = 0; *(uint8_t*)0x200000006c98 = 0; *(uint8_t*)0x200000006c99 = 0; res = -1; res = syz_usb_connect_ath9k(/*speed=*/3, /*dev_len=*/0x5a, /*dev=*/0x200000006c40, /*conn_descs=*/0); if (res != -1) r[38] = res; *(uint8_t*)0x200000006cc0 = 0x12; *(uint8_t*)0x200000006cc1 = 1; *(uint16_t*)0x200000006cc2 = 0x310; *(uint8_t*)0x200000006cc4 = 2; *(uint8_t*)0x200000006cc5 = 0; *(uint8_t*)0x200000006cc6 = 0; *(uint8_t*)0x200000006cc7 = 8; *(uint16_t*)0x200000006cc8 = 0x525; *(uint16_t*)0x200000006cca = 0xa4a1; *(uint16_t*)0x200000006ccc = 0x40; *(uint8_t*)0x200000006cce = 1; *(uint8_t*)0x200000006ccf = 2; *(uint8_t*)0x200000006cd0 = 3; *(uint8_t*)0x200000006cd1 = 1; *(uint8_t*)0x200000006cd2 = 9; *(uint8_t*)0x200000006cd3 = 2; *(uint16_t*)0x200000006cd4 = 0x7d; *(uint8_t*)0x200000006cd6 = 1; *(uint8_t*)0x200000006cd7 = 1; *(uint8_t*)0x200000006cd8 = 6; *(uint8_t*)0x200000006cd9 = 0x10; *(uint8_t*)0x200000006cda = 0xb; *(uint8_t*)0x200000006cdb = 9; *(uint8_t*)0x200000006cdc = 4; *(uint8_t*)0x200000006cdd = 0; *(uint8_t*)0x200000006cde = 4; *(uint8_t*)0x200000006cdf = 3; *(uint8_t*)0x200000006ce0 = 2; *(uint8_t*)0x200000006ce1 = 6; *(uint8_t*)0x200000006ce2 = 0; *(uint8_t*)0x200000006ce3 = 0xe; *(uint8_t*)0x200000006ce4 = 0xb; *(uint8_t*)0x200000006ce5 = 0x24; *(uint8_t*)0x200000006ce6 = 6; *(uint8_t*)0x200000006ce7 = 0; *(uint8_t*)0x200000006ce8 = 0; memcpy((void*)0x200000006ce9, "\xd6\x01\x32\xf1\x49\xc6", 6); *(uint8_t*)0x200000006cef = 5; *(uint8_t*)0x200000006cf0 = 0x24; *(uint8_t*)0x200000006cf1 = 0; *(uint16_t*)0x200000006cf2 = 0xbb8; *(uint8_t*)0x200000006cf4 = 0xd; *(uint8_t*)0x200000006cf5 = 0x24; *(uint8_t*)0x200000006cf6 = 0xf; *(uint8_t*)0x200000006cf7 = 1; *(uint32_t*)0x200000006cf8 = 7; *(uint16_t*)0x200000006cfc = 0x32a; *(uint16_t*)0x200000006cfe = 8; *(uint8_t*)0x200000006d00 = 0x1f; *(uint8_t*)0x200000006d01 = 5; *(uint8_t*)0x200000006d02 = 0x24; *(uint8_t*)0x200000006d03 = 0x15; *(uint16_t*)0x200000006d04 = 0x101; *(uint8_t*)0x200000006d06 = 0x15; *(uint8_t*)0x200000006d07 = 0x24; *(uint8_t*)0x200000006d08 = 0x12; *(uint16_t*)0x200000006d09 = 0xfffc; *(uint64_t*)0x200000006d0b = 0x14f5e048ba817a3; *(uint64_t*)0x200000006d13 = 0x2a397ecbffc007a6; *(uint8_t*)0x200000006d1b = 7; *(uint8_t*)0x200000006d1c = 0x24; *(uint8_t*)0x200000006d1d = 0xa; *(uint8_t*)0x200000006d1e = 0xb; *(uint8_t*)0x200000006d1f = 9; *(uint8_t*)0x200000006d20 = 0xf; *(uint8_t*)0x200000006d21 = 2; *(uint8_t*)0x200000006d22 = 5; *(uint8_t*)0x200000006d23 = 0x24; *(uint8_t*)0x200000006d24 = 1; *(uint8_t*)0x200000006d25 = 1; *(uint8_t*)0x200000006d26 = -1; *(uint8_t*)0x200000006d27 = 5; *(uint8_t*)0x200000006d28 = 0x24; *(uint8_t*)0x200000006d29 = 0x15; *(uint16_t*)0x200000006d2a = 0x7ff; *(uint8_t*)0x200000006d2c = 8; *(uint8_t*)0x200000006d2d = 0x24; *(uint8_t*)0x200000006d2e = 0x1c; *(uint16_t*)0x200000006d2f = 5; *(uint8_t*)0x200000006d31 = 0x32; *(uint16_t*)0x200000006d32 = 0xa; *(uint8_t*)0x200000006d34 = 9; *(uint8_t*)0x200000006d35 = 5; *(uint8_t*)0x200000006d36 = 0x81; *(uint8_t*)0x200000006d37 = 3; *(uint16_t*)0x200000006d38 = 0x10; *(uint8_t*)0x200000006d3a = 7; *(uint8_t*)0x200000006d3b = 0x99; *(uint8_t*)0x200000006d3c = 0xb2; *(uint8_t*)0x200000006d3d = 9; *(uint8_t*)0x200000006d3e = 5; *(uint8_t*)0x200000006d3f = 0x82; *(uint8_t*)0x200000006d40 = 2; *(uint16_t*)0x200000006d41 = 8; *(uint8_t*)0x200000006d43 = 0x1a; *(uint8_t*)0x200000006d44 = 7; *(uint8_t*)0x200000006d45 = 0xc4; *(uint8_t*)0x200000006d46 = 9; *(uint8_t*)0x200000006d47 = 5; *(uint8_t*)0x200000006d48 = 3; *(uint8_t*)0x200000006d49 = 2; *(uint16_t*)0x200000006d4a = 0x3ff; *(uint8_t*)0x200000006d4c = 0xa6; *(uint8_t*)0x200000006d4d = 3; *(uint8_t*)0x200000006d4e = 0xa7; *(uint32_t*)0x200000007240 = 0xa; *(uint64_t*)0x200000007244 = 0x200000006d80; *(uint8_t*)0x200000006d80 = 0xa; *(uint8_t*)0x200000006d81 = 6; *(uint16_t*)0x200000006d82 = 0x300; *(uint8_t*)0x200000006d84 = 0xfb; *(uint8_t*)0x200000006d85 = 3; *(uint8_t*)0x200000006d86 = 0xc; *(uint8_t*)0x200000006d87 = -1; *(uint8_t*)0x200000006d88 = 1; *(uint8_t*)0x200000006d89 = 0; *(uint32_t*)0x20000000724c = 0x3c; *(uint64_t*)0x200000007250 = 0x200000006dc0; *(uint8_t*)0x200000006dc0 = 5; *(uint8_t*)0x200000006dc1 = 0xf; *(uint16_t*)0x200000006dc2 = 0x3c; *(uint8_t*)0x200000006dc4 = 6; *(uint8_t*)0x200000006dc5 = 7; *(uint8_t*)0x200000006dc6 = 0x10; *(uint8_t*)0x200000006dc7 = 2; STORE_BY_BITMASK(uint32_t, , 0x200000006dc8, 4, 0, 8); STORE_BY_BITMASK(uint32_t, , 0x200000006dc9, 7, 0, 4); STORE_BY_BITMASK(uint32_t, , 0x200000006dc9, 7, 4, 4); STORE_BY_BITMASK(uint32_t, , 0x200000006dca, 0x56a9, 0, 16); *(uint8_t*)0x200000006dcc = 0xb; *(uint8_t*)0x200000006dcd = 0x10; *(uint8_t*)0x200000006dce = 1; *(uint8_t*)0x200000006dcf = 4; *(uint16_t*)0x200000006dd0 = 0x42; *(uint8_t*)0x200000006dd2 = 2; *(uint8_t*)0x200000006dd3 = 3; *(uint16_t*)0x200000006dd4 = 0x63ac; *(uint8_t*)0x200000006dd6 = 9; *(uint8_t*)0x200000006dd7 = 3; *(uint8_t*)0x200000006dd8 = 0x10; *(uint8_t*)0x200000006dd9 = 0xb; *(uint8_t*)0x200000006dda = 7; *(uint8_t*)0x200000006ddb = 0x10; *(uint8_t*)0x200000006ddc = 2; STORE_BY_BITMASK(uint32_t, , 0x200000006ddd, 0x1a, 0, 8); STORE_BY_BITMASK(uint32_t, , 0x200000006dde, 7, 0, 4); STORE_BY_BITMASK(uint32_t, , 0x200000006dde, 0xb, 4, 4); STORE_BY_BITMASK(uint32_t, , 0x200000006ddf, 0xd5, 0, 16); *(uint8_t*)0x200000006de1 = 0x10; *(uint8_t*)0x200000006de2 = 0x10; *(uint8_t*)0x200000006de3 = 0xa; *(uint8_t*)0x200000006de4 = 0x7f; STORE_BY_BITMASK(uint32_t, , 0x200000006de5, 1, 0, 5); STORE_BY_BITMASK(uint32_t, , 0x200000006de5, 0x12f, 5, 27); *(uint16_t*)0x200000006de9 = 0xf00; *(uint16_t*)0x200000006deb = 1; *(uint32_t*)0x200000006ded = 0x3fc0; *(uint8_t*)0x200000006df1 = 0xb; *(uint8_t*)0x200000006df2 = 0x10; *(uint8_t*)0x200000006df3 = 1; *(uint8_t*)0x200000006df4 = 8; *(uint16_t*)0x200000006df5 = 0x40; *(uint8_t*)0x200000006df7 = 7; *(uint8_t*)0x200000006df8 = 5; *(uint16_t*)0x200000006df9 = 2; *(uint8_t*)0x200000006dfb = 4; *(uint32_t*)0x200000007258 = 8; *(uint32_t*)0x20000000725c = 0x78; *(uint64_t*)0x200000007260 = 0x200000006e00; *(uint8_t*)0x200000006e00 = 0x78; *(uint8_t*)0x200000006e01 = 3; memcpy((void*)0x200000006e02, "\xd7\xb4\xca\xdb\x72\xdc\xe2\x7c\xa7\xfb\x52\x09\xaa\xd1\xb3\x58\x5c\x81\x88\xf0\x61\x26\xd3\xf1\x8e\xdd\x4c\xfa\x47\xad\xdb\xd2\xa6\x71\x5d\xd4\xad\xfa\x69\x7f\x02\xbc\xb0\x89\xed\x20\x13\x26\x88\x85\xf9\xc7\x85\xbd\x7c\x5d\x4e\xe5\x0d\xe3\xce\xcd\x7a\x9d\x0b\x7b\x2e\x70\x82\x26\xe8\xac\xb1\xe9\x08\xb1\xf5\xc0\xc2\xa8\x13\x24\x65\xe4\x51\xfe\x49\xf1\x5e\x60\xc8\xd3\xb9\xc8\x43\x05\xd0\xdd\x8f\x63\x44\x80\x05\x02\x59\xca\xc3\xce\x9c\xfc\x95\x09\x2b\xd7\xe4\x91\x86\x6d", 118); *(uint32_t*)0x200000007268 = 0x13; *(uint64_t*)0x20000000726c = 0x200000006e80; *(uint8_t*)0x200000006e80 = 0x13; *(uint8_t*)0x200000006e81 = 3; memcpy((void*)0x200000006e82, "\x7d\x97\xd9\xeb\x8a\xf2\x94\x3b\x99\x85\xd3\x0c\xaa\xea\xd8\x9b\x5a", 17); *(uint32_t*)0x200000007274 = 4; *(uint64_t*)0x200000007278 = 0x200000006ec0; *(uint8_t*)0x200000006ec0 = 4; *(uint8_t*)0x200000006ec1 = 3; *(uint16_t*)0x200000006ec2 = 0x44a; *(uint32_t*)0x200000007280 = 4; *(uint64_t*)0x200000007284 = 0x200000006f00; *(uint8_t*)0x200000006f00 = 4; *(uint8_t*)0x200000006f01 = 3; *(uint16_t*)0x200000006f02 = 0x1c09; *(uint32_t*)0x20000000728c = 0x93; *(uint64_t*)0x200000007290 = 0x200000006f40; *(uint8_t*)0x200000006f40 = 0x93; *(uint8_t*)0x200000006f41 = 3; memcpy((void*)0x200000006f42, "\xa7\xe5\x52\x92\x38\xf7\x96\xc9\x00\x0c\x75\x3f\x41\xb8\x18\x31\x40\xf3\x91\x4b\x76\xbf\x1c\x42\x8e\xbe\x8d\x39\xc6\xf0\x72\xb4\x81\xec\xad\x74\x62\x74\xe7\xc5\x38\x79\x0d\x8c\x73\x0d\x20\x51\x7a\x22\x44\xa3\x78\x1b\x11\x5c\x07\xd4\x0e\x9e\xc9\xc0\x59\xf1\x2d\x0d\x15\xf4\x6c\xcf\x0c\xde\x26\xef\xa9\xd0\x2a\x11\x9e\x2c\xc5\x62\x7c\x7f\x42\x41\x24\x4d\x08\x43\xef\x00\x18\xb1\x2f\xc3\xcd\x46\x7b\x5f\xdc\xe5\x8a\x69\x75\xd0\x7a\xc3\x52\xa4\x2f\x16\x15\x17\x8d\xcb\x09\x90\xae\xca\x46\x46\x13\x06\x81\x6b\xec\xde\xb8\x96\xba\xc7\x65\xde\xd8\x1e\xbd\x75\xba\x4d\x97\x22\x9b\x15\xa9", 145); *(uint32_t*)0x200000007298 = 0xc2; *(uint64_t*)0x20000000729c = 0x200000007000; *(uint8_t*)0x200000007000 = 0xc2; *(uint8_t*)0x200000007001 = 3; memcpy((void*)0x200000007002, "\xd5\xa3\xd4\x83\x01\x2b\x31\xe4\x9d\xfa\x33\xfd\x95\x93\xb4\xb6\x68\xaa\x6f\x3f\x39\x30\x18\x37\xd9\x51\xda\xf2\x56\x31\x68\x19\xf5\xe7\x1f\xa6\x51\xbb\x06\xb2\xaf\x65\xaf\x27\xc7\xbf\x0f\xda\x1e\xaa\x1e\x32\x23\x1b\x75\xf4\xd0\x6d\x49\x23\xc7\x60\x13\xe9\xd7\x6a\x12\x20\x28\x16\xff\x87\x40\xa9\xfb\x4f\x2e\xce\xb2\x7b\xd2\xe1\xab\x1e\x7b\xd4\xba\x73\x14\xb3\x3d\x15\xe0\xfe\x65\xaa\x2b\x2e\x7f\xfb\x32\x36\xcb\x61\x54\x93\x39\x1f\xea\xb3\xbf\xb8\x28\x18\x2f\xb6\x0c\x4f\xd6\xfe\xf4\x22\xe1\x06\xf3\x84\xbe\x63\x39\x05\xca\x1a\xaf\x83\xd9\xdd\xb2\xa2\x90\x2e\x2a\x11\x7d\xe4\xe5\x96\x14\x58\x09\xb3\xb3\x4b\x1e\xa4\x32\xb4\x12\x39\x1f\xfb\x25\xac\x25\x5e\x7d\xa1\x1d\x99\x4e\x7e\x9e\x98\xe0\x72\x3a\x27\x57\xe5\x80\x95\x9d\xae\x6f\xa7\xac\x2a\xfb\x8d\xc5\x38\x4b\x4a", 192); *(uint32_t*)0x2000000072a4 = 0x5b; *(uint64_t*)0x2000000072a8 = 0x200000007100; *(uint8_t*)0x200000007100 = 0x5b; *(uint8_t*)0x200000007101 = 3; memcpy((void*)0x200000007102, "\xa7\x94\x09\x09\x68\xe4\x6e\x97\xb7\x26\x9f\xca\xe0\xf8\x18\xbf\x9a\x99\xa5\x0d\xe6\x0e\x5c\xda\x68\x47\x21\xbe\x6d\xc3\x48\x20\xf9\x12\xc3\x38\xd7\xdc\x8a\xc5\x0d\x93\xfc\x92\xa2\xeb\xde\x1a\x02\x65\x20\x89\x72\x66\x08\xa9\xe5\x87\x7f\x4c\xac\xf9\x1b\x9e\xec\x5b\x5e\xb2\xfc\x7f\xa7\xbb\x3d\x26\x60\x75\x37\xf0\xe5\x5d\x00\x79\x3e\x7c\xf1\x3b\xbb\x36\x7e", 89); *(uint32_t*)0x2000000072b0 = 0x90; *(uint64_t*)0x2000000072b4 = 0x200000007180; *(uint8_t*)0x200000007180 = 0x90; *(uint8_t*)0x200000007181 = 3; memcpy((void*)0x200000007182, "\xf9\x92\x6b\x0d\xae\x8c\x46\x23\x52\x10\x5e\xd1\xc4\xd3\xff\x50\xcc\x9c\xe9\x82\xc3\x97\xe9\x2e\x57\x61\x01\x31\x71\x90\xc2\x32\x7a\x2b\xa7\x23\x84\x41\x49\xe5\x5f\x4b\x96\x1d\x0f\x0d\xef\xbc\x7e\xdb\x70\xf5\xd6\x11\x69\x07\x42\x65\xac\xd8\x1c\xee\xc5\xa1\x5b\x66\xa5\xe5\x00\x92\x36\xd0\x62\x99\x4a\xf9\xaf\xcb\xe0\x47\x36\xaa\xad\x6b\xb5\x5c\xb3\x0e\x05\x7c\x42\xd0\xdf\x74\x81\x60\x3c\x3c\x95\x9b\x5e\x4e\x20\xf0\x53\x82\xa9\xd9\xad\x4c\x01\x68\x0a\xe3\x59\x7e\xf4\x03\xde\xdf\x0b\x6c\x53\xfd\xc7\x0d\x13\xed\x11\x6e\xf9\xea\x90\x20\x93\xf1\xc9\xf4\xaf\x4c\xec\x25", 142); res = -1; res = syz_usb_connect(/*speed=USB_SPEED_SUPER_PLUS*/6, /*dev_len=*/0x8f, /*dev=*/0x200000006cc0, /*conn_descs=*/0x200000007240); if (res != -1) r[39] = res; *(uint32_t*)0x200000007480 = 0x2c; *(uint64_t*)0x200000007484 = 0x2000000072c0; *(uint8_t*)0x2000000072c0 = 0x40; *(uint8_t*)0x2000000072c1 = 7; *(uint32_t*)0x2000000072c2 = 0x1b; *(uint8_t*)0x2000000072c6 = 0x1b; *(uint8_t*)0x2000000072c7 = 0xa; memcpy((void*)0x2000000072c8, "\x90\x73\x0f\x1d\x9e\x91\xd2\xe1\xdf\x57\x71\x43\xe1\x8c\x68\x0e\xac\xe6\xd6\xc1\x22\x99\x24\x61\x28", 25); *(uint64_t*)0x20000000748c = 0x200000007300; *(uint8_t*)0x200000007300 = 0; *(uint8_t*)0x200000007301 = 3; *(uint32_t*)0x200000007302 = 0x44; *(uint8_t*)0x200000007306 = 0x44; *(uint8_t*)0x200000007307 = 3; memcpy((void*)0x200000007308, "\x87\xd7\x4d\xd4\x60\x96\x80\x9a\x8f\x49\x88\xdd\xaa\x95\xa5\x32\xfb\xc2\x2d\x85\x85\xd1\x59\x28\x57\xad\x0a\xb0\x0c\x17\xa4\xfe\xf3\xb2\x29\xa0\x2f\xe0\xe3\x64\x93\x16\xbe\xd9\xf4\x4f\x58\x8b\x1f\x0b\x47\xbc\x86\x70\x51\x29\x44\x09\x38\xbd\x68\xa2\x9a\x84\xf8\x29", 66); *(uint64_t*)0x200000007494 = 0x200000007380; *(uint8_t*)0x200000007380 = 0; *(uint8_t*)0x200000007381 = 0xf; *(uint32_t*)0x200000007382 = 0x41; *(uint8_t*)0x200000007386 = 5; *(uint8_t*)0x200000007387 = 0xf; *(uint16_t*)0x200000007388 = 0x41; *(uint8_t*)0x20000000738a = 4; *(uint8_t*)0x20000000738b = 0x20; *(uint8_t*)0x20000000738c = 0x10; *(uint8_t*)0x20000000738d = 0xa; *(uint8_t*)0x20000000738e = 0; STORE_BY_BITMASK(uint32_t, , 0x20000000738f, 5, 0, 5); STORE_BY_BITMASK(uint32_t, , 0x20000000738f, 0xe85, 5, 27); *(uint16_t*)0x200000007393 = 0xf00; *(uint16_t*)0x200000007395 = 3; *(uint32_t*)0x200000007397 = 0xff00a0; *(uint32_t*)0x20000000739b = 0xff00f0; *(uint32_t*)0x20000000739f = 0x30; *(uint32_t*)0x2000000073a3 = 0xf; *(uint32_t*)0x2000000073a7 = 0xdfbf; *(uint8_t*)0x2000000073ab = 7; *(uint8_t*)0x2000000073ac = 0x10; *(uint8_t*)0x2000000073ad = 2; STORE_BY_BITMASK(uint32_t, , 0x2000000073ae, 4, 0, 8); STORE_BY_BITMASK(uint32_t, , 0x2000000073af, 4, 0, 4); STORE_BY_BITMASK(uint32_t, , 0x2000000073af, 1, 4, 4); STORE_BY_BITMASK(uint32_t, , 0x2000000073b0, 0xff, 0, 16); *(uint8_t*)0x2000000073b2 = 0xb; *(uint8_t*)0x2000000073b3 = 0x10; *(uint8_t*)0x2000000073b4 = 1; *(uint8_t*)0x2000000073b5 = 2; *(uint16_t*)0x2000000073b6 = 1; *(uint8_t*)0x2000000073b8 = 1; *(uint8_t*)0x2000000073b9 = 3; *(uint16_t*)0x2000000073ba = 9; *(uint8_t*)0x2000000073bc = 8; *(uint8_t*)0x2000000073bd = 0xa; *(uint8_t*)0x2000000073be = 0x10; *(uint8_t*)0x2000000073bf = 3; *(uint8_t*)0x2000000073c0 = 2; *(uint16_t*)0x2000000073c1 = 4; *(uint8_t*)0x2000000073c3 = 3; *(uint8_t*)0x2000000073c4 = 0xb6; *(uint16_t*)0x2000000073c5 = 5; *(uint64_t*)0x20000000749c = 0x200000007400; *(uint8_t*)0x200000007400 = 0x20; *(uint8_t*)0x200000007401 = 0x29; *(uint32_t*)0x200000007402 = 0xf; *(uint8_t*)0x200000007406 = 0xf; *(uint8_t*)0x200000007407 = 0x29; *(uint8_t*)0x200000007408 = 0xf; *(uint16_t*)0x200000007409 = 4; *(uint8_t*)0x20000000740b = 6; *(uint8_t*)0x20000000740c = 0x32; memcpy((void*)0x20000000740d, "\xb2\xc8\x4f\x72", 4); memcpy((void*)0x200000007411, "\xf5\xfb\x7b\x90", 4); *(uint64_t*)0x2000000074a4 = 0x200000007440; *(uint8_t*)0x200000007440 = 0x20; *(uint8_t*)0x200000007441 = 0x2a; *(uint32_t*)0x200000007442 = 0xc; *(uint8_t*)0x200000007446 = 0xc; *(uint8_t*)0x200000007447 = 0x2a; *(uint8_t*)0x200000007448 = 0x3a; *(uint16_t*)0x200000007449 = 0x60; *(uint8_t*)0x20000000744b = 4; *(uint8_t*)0x20000000744c = 4; *(uint8_t*)0x20000000744d = 7; *(uint16_t*)0x20000000744e = 0x8001; *(uint16_t*)0x200000007450 = 8; *(uint32_t*)0x200000007980 = 0x84; *(uint64_t*)0x200000007984 = 0x2000000074c0; *(uint8_t*)0x2000000074c0 = 0; *(uint8_t*)0x2000000074c1 = 0; *(uint32_t*)0x2000000074c2 = 0xcf; memcpy((void*)0x2000000074c6, "\x9f\x51\xc6\xee\x54\xbf\xc1\xfc\x30\xd7\x87\x49\x9a\xb2\x44\x93\xc2\xf3\x0f\x78\xfe\x08\x8e\x72\x4a\xd2\x9b\xad\xb6\xc2\x40\x68\x74\xa9\x09\xd8\x0e\x00\x00\x75\xbb\xe9\x2f\x6f\x4e\x8b\x35\x14\x48\x1d\x12\xb8\x69\xde\xb6\xf4\x7f\x3b\x45\x83\x69\xb7\xf0\x24\xfc\xc0\x23\x19\xe3\x8c\xb7\x46\x7c\x76\xb3\x70\xd3\x78\xee\x02\x56\xda\xa3\xac\xea\x1f\x71\xbe\x5e\x4c\x7d\x8a\x50\x03\x7b\xa8\x4e\x62\x44\x5b\xbd\x99\x0a\x26\xb4\x4f\x60\x19\x8d\x63\x50\x5f\xbf\x00\x5b\x96\x63\x7a\xbf\x5e\xb6\x92\xa2\xed\x0d\x58\x26\x92\xe3\xf2\x59\x38\x7e\xd9\xd1\x95\x59\x17\xdc\x53\xa2\x46\xeb\x20\xe2\x81\xe7\x83\x86\xed\x87\x34\xb8\x10\x75\xe4\x3b\x5b\x3e\x15\xea\x60\xdb\xd4\x97\xe0\x7a\xd8\x84\x79\x92\xdd\x87\x83\x1b\x20\xd0\x52\x63\xc1\x08\xd7\x01\x17\xe5\x21\x70\xef\xac\x17\x77\xd3\xd3\x76\x87\x63\x58\xc2\x29\x71\x72\xb2\xa0\x23\xb5\x2c\x05", 207); *(uint64_t*)0x20000000798c = 0x2000000075c0; *(uint8_t*)0x2000000075c0 = 0; *(uint8_t*)0x2000000075c1 = 0xa; *(uint32_t*)0x2000000075c2 = 1; *(uint8_t*)0x2000000075c6 = 2; *(uint64_t*)0x200000007994 = 0x200000007600; *(uint8_t*)0x200000007600 = 0; *(uint8_t*)0x200000007601 = 8; *(uint32_t*)0x200000007602 = 1; *(uint8_t*)0x200000007606 = 0xfc; *(uint64_t*)0x20000000799c = 0x200000007640; *(uint8_t*)0x200000007640 = 0x20; *(uint8_t*)0x200000007641 = 0; *(uint32_t*)0x200000007642 = 4; *(uint16_t*)0x200000007646 = 3; *(uint16_t*)0x200000007648 = 1; *(uint64_t*)0x2000000079a4 = 0x200000007680; *(uint8_t*)0x200000007680 = 0x20; *(uint8_t*)0x200000007681 = 0; *(uint32_t*)0x200000007682 = 4; *(uint16_t*)0x200000007686 = 0x1d20; *(uint16_t*)0x200000007688 = 0x20; *(uint64_t*)0x2000000079ac = 0x2000000076c0; *(uint8_t*)0x2000000076c0 = 0x40; *(uint8_t*)0x2000000076c1 = 7; *(uint32_t*)0x2000000076c2 = 2; *(uint16_t*)0x2000000076c6 = 0xfff8; *(uint64_t*)0x2000000079b4 = 0x200000007700; *(uint8_t*)0x200000007700 = 0x40; *(uint8_t*)0x200000007701 = 9; *(uint32_t*)0x200000007702 = 1; *(uint8_t*)0x200000007706 = 0xd; *(uint64_t*)0x2000000079bc = 0x200000007740; *(uint8_t*)0x200000007740 = 0x40; *(uint8_t*)0x200000007741 = 0xb; *(uint32_t*)0x200000007742 = 2; memcpy((void*)0x200000007746, "\x22\x89", 2); *(uint64_t*)0x2000000079c4 = 0x200000007780; *(uint8_t*)0x200000007780 = 0x40; *(uint8_t*)0x200000007781 = 0xf; *(uint32_t*)0x200000007782 = 2; *(uint16_t*)0x200000007786 = 2; *(uint64_t*)0x2000000079cc = 0x2000000077c0; *(uint8_t*)0x2000000077c0 = 0x40; *(uint8_t*)0x2000000077c1 = 0x13; *(uint32_t*)0x2000000077c2 = 6; memset((void*)0x2000000077c6, 255, 6); *(uint64_t*)0x2000000079d4 = 0x200000007800; *(uint8_t*)0x200000007800 = 0x40; *(uint8_t*)0x200000007801 = 0x17; *(uint32_t*)0x200000007802 = 6; memcpy((void*)0x200000007806, "\xee\xfa\x7a\x62\x01\x65", 6); *(uint64_t*)0x2000000079dc = 0x200000007840; *(uint8_t*)0x200000007840 = 0x40; *(uint8_t*)0x200000007841 = 0x19; *(uint32_t*)0x200000007842 = 2; memcpy((void*)0x200000007846, "\x01\xd3", 2); *(uint64_t*)0x2000000079e4 = 0x200000007880; *(uint8_t*)0x200000007880 = 0x40; *(uint8_t*)0x200000007881 = 0x1a; *(uint32_t*)0x200000007882 = 2; *(uint16_t*)0x200000007886 = 5; *(uint64_t*)0x2000000079ec = 0x2000000078c0; *(uint8_t*)0x2000000078c0 = 0x40; *(uint8_t*)0x2000000078c1 = 0x1c; *(uint32_t*)0x2000000078c2 = 1; *(uint8_t*)0x2000000078c6 = -1; *(uint64_t*)0x2000000079f4 = 0x200000007900; *(uint8_t*)0x200000007900 = 0x40; *(uint8_t*)0x200000007901 = 0x1e; *(uint32_t*)0x200000007902 = 1; *(uint8_t*)0x200000007906 = 0xf7; *(uint64_t*)0x2000000079fc = 0x200000007940; *(uint8_t*)0x200000007940 = 0x40; *(uint8_t*)0x200000007941 = 0x21; *(uint32_t*)0x200000007942 = 1; *(uint8_t*)0x200000007946 = 0xb; syz_usb_control_io(/*fd=*/r[39], /*descs=*/0x200000007480, /*resps=*/0x200000007980); syz_usb_disconnect(/*fd=*/r[38]); *(uint8_t*)0x200000007a40 = 0x12; *(uint8_t*)0x200000007a41 = 1; *(uint16_t*)0x200000007a42 = 0x110; *(uint8_t*)0x200000007a44 = 0; *(uint8_t*)0x200000007a45 = 0; *(uint8_t*)0x200000007a46 = 0; *(uint8_t*)0x200000007a47 = -1; *(uint16_t*)0x200000007a48 = 0x46d; *(uint16_t*)0x200000007a4a = 0xc08d; *(uint16_t*)0x200000007a4c = 0x40; *(uint8_t*)0x200000007a4e = 1; *(uint8_t*)0x200000007a4f = 2; *(uint8_t*)0x200000007a50 = 3; *(uint8_t*)0x200000007a51 = 1; *(uint8_t*)0x200000007a52 = 9; *(uint8_t*)0x200000007a53 = 2; *(uint16_t*)0x200000007a54 = 0x2d; *(uint8_t*)0x200000007a56 = 1; *(uint8_t*)0x200000007a57 = 1; *(uint8_t*)0x200000007a58 = 4; *(uint8_t*)0x200000007a59 = 0x50; *(uint8_t*)0x200000007a5a = 0x10; *(uint8_t*)0x200000007a5b = 9; *(uint8_t*)0x200000007a5c = 4; *(uint8_t*)0x200000007a5d = 0; *(uint8_t*)0x200000007a5e = 0xf9; *(uint8_t*)0x200000007a5f = 2; *(uint8_t*)0x200000007a60 = 3; *(uint8_t*)0x200000007a61 = 1; *(uint8_t*)0x200000007a62 = 2; *(uint8_t*)0x200000007a63 = 5; *(uint8_t*)0x200000007a64 = 9; *(uint8_t*)0x200000007a65 = 0x21; *(uint16_t*)0x200000007a66 = 0x81; *(uint8_t*)0x200000007a68 = 8; *(uint8_t*)0x200000007a69 = 1; *(uint8_t*)0x200000007a6a = 0x22; *(uint16_t*)0x200000007a6b = 0x6e7; *(uint8_t*)0x200000007a6d = 9; *(uint8_t*)0x200000007a6e = 5; *(uint8_t*)0x200000007a6f = 0x81; *(uint8_t*)0x200000007a70 = 3; *(uint16_t*)0x200000007a71 = 0x10; *(uint8_t*)0x200000007a73 = 8; *(uint8_t*)0x200000007a74 = 0xc; *(uint8_t*)0x200000007a75 = 0x6e; *(uint8_t*)0x200000007a76 = 9; *(uint8_t*)0x200000007a77 = 5; *(uint8_t*)0x200000007a78 = 2; *(uint8_t*)0x200000007a79 = 3; *(uint16_t*)0x200000007a7a = 0x200; *(uint8_t*)0x200000007a7c = 8; *(uint8_t*)0x200000007a7d = 1; *(uint8_t*)0x200000007a7e = 0x50; *(uint32_t*)0x200000007f40 = 0xa; *(uint64_t*)0x200000007f44 = 0x200000007a80; *(uint8_t*)0x200000007a80 = 0xa; *(uint8_t*)0x200000007a81 = 6; *(uint16_t*)0x200000007a82 = 0x310; *(uint8_t*)0x200000007a84 = 0x48; *(uint8_t*)0x200000007a85 = 0xa5; *(uint8_t*)0x200000007a86 = 0xca; *(uint8_t*)0x200000007a87 = 8; *(uint8_t*)0x200000007a88 = 0x10; *(uint8_t*)0x200000007a89 = 0; *(uint32_t*)0x200000007f4c = 0x30; *(uint64_t*)0x200000007f50 = 0x200000007ac0; *(uint8_t*)0x200000007ac0 = 5; *(uint8_t*)0x200000007ac1 = 0xf; *(uint16_t*)0x200000007ac2 = 0x30; *(uint8_t*)0x200000007ac4 = 4; *(uint8_t*)0x200000007ac5 = 0xa; *(uint8_t*)0x200000007ac6 = 0x10; *(uint8_t*)0x200000007ac7 = 3; *(uint8_t*)0x200000007ac8 = 0; *(uint16_t*)0x200000007ac9 = 5; *(uint8_t*)0x200000007acb = 0; *(uint8_t*)0x200000007acc = 1; *(uint16_t*)0x200000007acd = 0x8a; *(uint8_t*)0x200000007acf = 0x10; *(uint8_t*)0x200000007ad0 = 0x10; *(uint8_t*)0x200000007ad1 = 0xa; *(uint8_t*)0x200000007ad2 = 0xa; STORE_BY_BITMASK(uint32_t, , 0x200000007ad3, 1, 0, 5); STORE_BY_BITMASK(uint32_t, , 0x200000007ad3, 0, 5, 27); *(uint16_t*)0x200000007ad7 = 0xf00f; *(uint16_t*)0x200000007ad9 = 7; *(uint32_t*)0x200000007adb = 0x3f00; *(uint8_t*)0x200000007adf = 0xa; *(uint8_t*)0x200000007ae0 = 0x10; *(uint8_t*)0x200000007ae1 = 3; *(uint8_t*)0x200000007ae2 = 0; *(uint16_t*)0x200000007ae3 = 4; *(uint8_t*)0x200000007ae5 = 4; *(uint8_t*)0x200000007ae6 = 8; *(uint16_t*)0x200000007ae7 = 0xfff8; *(uint8_t*)0x200000007ae9 = 7; *(uint8_t*)0x200000007aea = 0x10; *(uint8_t*)0x200000007aeb = 2; STORE_BY_BITMASK(uint32_t, , 0x200000007aec, 4, 0, 8); STORE_BY_BITMASK(uint32_t, , 0x200000007aed, 0, 0, 4); STORE_BY_BITMASK(uint32_t, , 0x200000007aed, 5, 4, 4); STORE_BY_BITMASK(uint32_t, , 0x200000007aee, 0x8001, 0, 16); *(uint32_t*)0x200000007f58 = 0xa; *(uint32_t*)0x200000007f5c = 4; *(uint64_t*)0x200000007f60 = 0x200000007b00; *(uint8_t*)0x200000007b00 = 4; *(uint8_t*)0x200000007b01 = 3; *(uint16_t*)0x200000007b02 = 0x437; *(uint32_t*)0x200000007f68 = 0xf2; *(uint64_t*)0x200000007f6c = 0x200000007b40; *(uint8_t*)0x200000007b40 = 0xf2; *(uint8_t*)0x200000007b41 = 3; memcpy((void*)0x200000007b42, "\xf0\x01\x99\x69\xb3\x8f\x6a\xfa\xbd\x6c\x10\x59\x67\xf2\xb7\x9c\x11\x6b\xf5\x2e\x6a\xf5\x49\x27\x19\x39\xcb\xea\xcd\xab\x5c\x85\x03\xce\xe7\xd1\xa6\x7a\x62\xea\x49\x1b\x6b\x2f\x86\x47\x13\x3f\x15\xb8\xe9\x70\x7e\x4a\x77\x57\x7e\x8a\xfd\x8a\x12\x84\x45\x9b\x66\xc7\xbe\x93\xc4\x3e\x84\xef\xcf\xc2\xf7\x3e\x93\xd2\x95\x99\x8c\xc2\xf4\x95\xae\x5b\x1a\x3d\x5e\x12\xef\x6e\x64\x66\x4a\x3b\x5c\x79\x52\x8b\x01\x19\xf7\x8b\x0a\x61\xd8\x07\x23\x25\x37\xeb\x3d\x9c\x09\xad\xd9\x38\x23\xe6\xf8\x78\xbb\xba\x00\x89\x8b\xe1\x01\x7f\xaf\x4e\x5f\x14\xd3\x87\x40\x1c\x45\x64\x59\x54\xc0\x4f\x8c\x83\xf9\xe5\xf0\xae\x99\x13\xd9\xcc\xb8\x8e\x75\x16\xd8\x0f\x8e\x21\xc3\xb6\x10\x42\x92\x58\x16\x92\x48\xa0\x16\xde\x14\x4a\xbc\xe7\x90\x5f\x4d\xd3\xbf\x26\x98\xe9\xf3\xa5\xfe\xbc\x7c\x10\xef\x4e\xd2\x98\xe5\xf8\xfa\xcb\xb3\xc9\x34\x4b\xb3\xab\x33\x56\x8a\x0f\x64\xf4\x28\xd6\x0d\xab\xe2\xbf\xe7\x95\xdf\x06\x03\xcd\xf7\x6f\x60\x62\x41\xfd\xd8\x9c\x8f\xf9\xfe\x55\xee\x23\x95\xfd", 240); *(uint32_t*)0x200000007f74 = 4; *(uint64_t*)0x200000007f78 = 0x200000007c40; *(uint8_t*)0x200000007c40 = 4; *(uint8_t*)0x200000007c41 = 3; *(uint16_t*)0x200000007c42 = 0x2c0a; *(uint32_t*)0x200000007f80 = 0x89; *(uint64_t*)0x200000007f84 = 0x200000007c80; *(uint8_t*)0x200000007c80 = 0x89; *(uint8_t*)0x200000007c81 = 3; memcpy((void*)0x200000007c82, "\x05\xb7\x61\x5d\x7a\x2b\xa8\x3f\x59\x16\xd5\x85\xe5\x29\x06\x69\xa0\xc2\x43\xe1\xc6\x5f\x43\xd6\xc7\x68\x07\x67\xf0\xda\x68\x05\xce\x35\x66\x41\x3a\x20\xf4\xb8\x66\x4b\x77\x79\x9c\x5c\x60\x61\xd9\xd1\x90\x75\xd2\xf8\x9b\x88\x0c\xaa\x62\x2d\x3a\xa9\x10\x8e\x52\x22\xe5\x53\x36\xbf\x78\x50\xd2\xf7\x99\x0a\x13\x14\xb0\xbe\x81\xd6\x06\xf8\xa9\x9a\x67\x05\xe0\xac\x44\x87\x20\x72\x36\x6a\xba\xea\x5f\x97\xd7\xca\x08\xed\x1e\xb2\x5b\x70\x7c\x92\x99\x1e\x55\x37\xf9\x45\xaa\x40\x1d\x76\x13\x49\xb6\x28\xd6\xc9\x28\xc1\xcf\xe5\xb0\x9f\xd1\x32\x72", 135); *(uint32_t*)0x200000007f8c = 0xb8; *(uint64_t*)0x200000007f90 = 0x200000007d40; *(uint8_t*)0x200000007d40 = 0xb8; *(uint8_t*)0x200000007d41 = 3; memcpy((void*)0x200000007d42, "\xf0\x4a\x78\x64\x8b\xb1\x3a\xd6\xc5\x3b\x44\xe4\x2e\xd2\xf2\x4d\x32\x05\xbf\x51\x61\x67\x4f\xf3\x75\xec\xfa\x9f\x71\x0d\xd4\xd5\x2e\x29\x77\x9b\xc4\xc1\xd4\x1f\xaf\x1b\x2e\x02\xfa\x2c\xb4\xca\x6c\x44\x96\x81\xb5\xc8\x8b\x37\x75\xf8\x2b\xab\xde\x22\x58\xf8\xa0\x01\xd8\x11\xf8\xb6\x4c\xe0\x75\x3b\x22\x8c\x16\x18\x09\x77\x0f\x39\x16\x0b\xa4\xea\x92\x49\x0a\x38\xf8\x2c\x3f\x18\xb4\x4c\x81\xa1\x48\xc4\x8b\xbc\x4f\x71\x6e\x64\xa8\x5a\x98\x5f\x35\x70\xd6\x13\x2a\x4a\xc6\xe9\x7f\x0a\xe7\x29\x65\x82\x87\x9c\x5d\x4e\x27\x7b\xe3\xd5\x86\x7d\xc3\xdf\x26\x06\x87\x9b\xd5\x28\x12\x25\xa3\x4f\x3f\xeb\xa4\x36\xee\xc1\x6d\xdf\xbe\x61\x15\x74\xbe\x64\x5a\x71\xc5\xe8\xbe\x49\x4e\x27\x91\x83\x33\xf2\x43\x1a\xef\xf2\xe9\xfe\xd0\x60\x84\x28", 182); *(uint32_t*)0x200000007f98 = 4; *(uint64_t*)0x200000007f9c = 0x200000007e00; *(uint8_t*)0x200000007e00 = 4; *(uint8_t*)0x200000007e01 = 3; *(uint16_t*)0x200000007e02 = 0x40f; *(uint32_t*)0x200000007fa4 = 4; *(uint64_t*)0x200000007fa8 = 0x200000007e40; *(uint8_t*)0x200000007e40 = 4; *(uint8_t*)0x200000007e41 = 3; *(uint16_t*)0x200000007e42 = 0x860; *(uint32_t*)0x200000007fb0 = 4; *(uint64_t*)0x200000007fb4 = 0x200000007e80; *(uint8_t*)0x200000007e80 = 4; *(uint8_t*)0x200000007e81 = 3; *(uint16_t*)0x200000007e82 = 0xf4ef; *(uint32_t*)0x200000007fbc = 4; *(uint64_t*)0x200000007fc0 = 0x200000007ec0; *(uint8_t*)0x200000007ec0 = 4; *(uint8_t*)0x200000007ec1 = 3; *(uint16_t*)0x200000007ec2 = 0x3001; *(uint32_t*)0x200000007fc8 = 4; *(uint64_t*)0x200000007fcc = 0x200000007f00; *(uint8_t*)0x200000007f00 = 4; *(uint8_t*)0x200000007f01 = 3; *(uint16_t*)0x200000007f02 = 0x2009; res = -1; res = syz_usb_connect(/*speed=*/0, /*dev_len=*/0x3f, /*dev=*/0x200000007a40, /*conn_descs=*/0x200000007f40); if (res != -1) r[40] = res; syz_usb_ep_read(/*fd=*/r[40], /*ep=*/0, /*len=*/0x1000, /*data=*/0x200000008000); memcpy((void*)0x200000009000, "\x57\xbb\xa2\xf0\x4f\x39\x45\xda\x7a\x47\x03\x77\x10\xf6\xd5\x3d\x8d\xfa\xd8\xa9\x6c\x57\xe1\x1c\xf5\xfc\xfe\xe4\x34\xfc\xe8\x80\x38\xe1\x90\x4e\xcc\x27\x12\x33\x41\x18\xe5\x00\x2b\x0c\x10\x7c\x28\x6e\xb9\x03\x14\x23\x3f\xd5\xce\x1d\x9e\xa5\xda\x00\x76\x74\x11\x02\xd8\x85\x17\x46\x3f\xf1\x18\xbd\x93\x12\x82\x41\x2d\xe1\xf5\xea\x71\xeb\x2b\xec\x91\xb8\x2b\x7f\x7b\x64\xf8\xaa\xe1\xd5\x8e\x32\xde\x1d\xee\xb1\xc8\x26\x4d\x59\xd6\x39\xa1\x94\x5f\x00\x90\x27\x5e\x6b\xdb\xf1\x8e\x86\x68\x5c\xcb\x60\xa5\xfe\xc9\xc7\xce\xba\xc5\xd0\x5b\x5c\x84\xe6\x11\x6f\x89\xd4\x43\xfa\xd3\xce\x74\xd8\x20\x80", 148); syz_usb_ep_write(/*fd=*/r[37], /*ep=*/6, /*len=*/0x94, /*data=*/0x200000009000); syz_usbip_server_init(/*speed=USB_SPEED_SUPER*/5); } int main(void) { syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000ul, /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/7ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x200001000000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); const char* reason; (void)reason; if ((reason = setup_fault())) printf("the reproducer may not work as expected: fault injection setup failed: %s\n", reason); use_temporary_dir(); do_sandbox_none(); return 0; } : In function 'execute_one': :6195:16: error: '__NR_socketcall' undeclared (first use in this function) :6195:16: note: each undeclared identifier is reported only once for each function it appears in At top level: cc1: note: unrecognized command-line option '-Wno-unused-command-line-argument' may have been intended to silence earlier diagnostics compiler invocation: x86_64-linux-gnu-gcc [-o /tmp/syz-executor3390723193 -DGOOS_linux=1 -DGOARCH_amd64=1 -DHOSTGOOS_linux=1 -x c - -m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -static-pie] --- FAIL: TestGenerate/linux/amd64/19 (1.07s) csource_test.go:157: opts: {Threaded:true Repeat:true RepeatTimes:0 Procs:0 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}} program: r0 = openat$ubi_ctrl(0xffffffffffffff9c, &(0x7f0000000000), 0x44502, 0x0) (fail_nth: 1) ioctl$USBDEVFS_BULK(r0, 0xc0185502, &(0x7f0000000140)={{{0xa, 0x1}}, 0xc5, 0x1, &(0x7f0000000040)="e1ee87a8f76c257b75c1073c7058be82fe3362bbcca54df520d1ca8fa91b50810f876d1fab0a1cc214c35f4e266e71643d8c95988087e46a87c1a715effe06169ab65fa18e5414404f30c0005561397ed1d9557c66a994b954efa714985a2ae409df8111fa8a361408734d15b30cd9ab3fa50e088b3d2bafdc689ea3cb7e52a9fc7f5d48d245d4097bb933725bd9e29371cd7780b4ec8d6e2dbf861aad04d6594f5ebd2ffab1e8a68c5157cae2f46f6fa3aeac0e3f8b7b97630f346bc3276e53ca72b417f8"}) (async) ioctl$F2FS_IOC_SET_COMPRESS_OPTION(r0, 0x4002f516, &(0x7f0000000180)={0x4, 0x9}) (rerun: 4) setsockopt$inet6_tcp_TCP_REPAIR(r0, 0x6, 0x13, &(0x7f00000001c0)=0xffffffffffffffff, 0x4) setsockopt$inet6_group_source_req(r0, 0x29, 0x2b, &(0x7f0000000200)={0x4, {{0xa, 0x4e20, 0x4, @private0={0xfc, 0x0, '\x00', 0x1}}}, {{0xa, 0x4e21, 0x1, @local, 0x9}}}, 0x108) ioctl$USBDEVFS_GETDRIVER(r0, 0x41045508, &(0x7f0000000340)={0x4b, "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"}) setsockopt$XDP_UMEM_REG(r0, 0x11b, 0x4, &(0x7f0000000580)={&(0x7f0000000480)=""/222, 0x8000, 0x1800, 0x1, 0x3}, 0x20) ioctl$BLKSECDISCARD(r0, 0x127d, &(0x7f00000005c0)=0x4) ioctl$DRM_IOCTL_SYNCOBJ_FD_TO_HANDLE_FD(r0, 0xc01864c2, &(0x7f0000000600)={0x0, 0x0, r0}) ioctl$DRM_IOCTL_MODE_REVOKE_LEASE(0xffffffffffffffff, 0xc00464c9, &(0x7f00000006c0)) syz_80211_inject_frame(&(0x7f0000000000)=@broadcast, &(0x7f0000000040)=@data_frame={@a_msdu=@type01={{0x0, 0x2, 0xb, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1}, {0x2}, @device_b, @from_mac, @initial, {0x9, 0x5bb}, "", @value={0x1, 0x1, 0x1, 0x1, 0x9}, @value=@ver_80211n={0x0, 0x2, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x1}}, @random="055ba71928a79f8625942b8e22a62e7d0ef5d26afb5923f0a1"}, 0x37) syz_80211_join_ibss(&(0x7f0000000080)='wlan0\x00', &(0x7f00000000c0)=@random="f20f01439229172ec7637d66e2f075", 0xf, 0x2) syz_btf_id_by_name$bpf_lsm(&(0x7f0000000100)='bpf_lsm_inode_getsecurity\x00') r1 = syz_clone(0x1000, &(0x7f0000000140)="ff427f0e4659ab5893d3badb31b3b1b89da52b0f3d3489a18a5837ba6e04f21cf0581de7946c2e29adef18036a10ce361250a5667064b4d456c64c307d63cfe3422c3fafd450315e8366", 0x4a, &(0x7f00000001c0), &(0x7f0000000200), &(0x7f0000000240)="b201d139a4344e463d89913bee9c68af3f34090b9f6244af88c8fe07ce4ffe9b81210da0fc44559d985ad5bb1dc9672ce4d1df554aafb78053f4") r2 = syz_clone3(&(0x7f0000000440)={0x100400, &(0x7f0000000280)=0xffffffffffffffff, &(0x7f00000002c0)=0x0, &(0x7f0000000300)=0x0, {0x2a}, &(0x7f0000000340)=""/21, 0x15, &(0x7f0000000380)=""/120, &(0x7f0000000400)=[r1], 0x1}, 0x58) syz_create_resource$binfmt(&(0x7f00000004c0)='./file0\x00') syz_emit_ethernet(0xd1, &(0x7f0000000500)={@random="44f71c1405a2", @multicast, @val={@void, {0x8100, 0x1, 0x0, 0x2}}, {@mpls_mc={0x8848, {[{0xf, 0x0, 0x1}, {0xc, 0x0, 0x1}, {0x2, 0x0, 0x1}, {0x1c}], @llc={@snap={0x0, 0x0, "67a3", "c85dcd", 0x88ca, "e303e8e52af9a170943b5f0b2861a3effb852560b1007d1865564aed84dfbf75279a5a950a513b7559f042b12f0d592b5a8bb399b9a071f4d2b9fb4903fb61b866bd20c43a437cc6915d6e19f058e23b4cfbf7d66b0d974aa6f1687cc06941e28e8515a079742b9f8383f09b8e29493cdfef26beab29802d1e85d1a50ef5670a049551dab256fd3dc3fd667fd4a29c752e4f3ba700720a9fe2ecb47e232cfbb80832213bbaf3"}}}}}}, &(0x7f0000000600)={0x1, 0x4, [0x58f, 0x8001, 0x2bc, 0xf]}) syz_emit_vhci(&(0x7f0000000640)=@HCI_ACLDATA_PKT={0x2, {0xc9, 0x1, 0x0, 0xa2}, @l2cap_cid_signaling={{0x9e}, [@l2cap_info_req={{0xa, 0x4, 0x2}, {0x5}}, @l2cap_move_chan_rsp={{0xf, 0x7, 0x4}, {0x1, 0x1ff}}, @l2cap_info_rsp={{0xb, 0x8, 0x64}, {0x1, 0x9, "7d0c09e4aa3ea5a78a46cf8d66857ba4107e5cf880621c4c433cdb0a8bd03a4f9c8f390145f9db0c1dd85656d6b3dc38afb84d7e118e1cbdd6926b1876be6a6553bafa1bfef971281350403e18e82e89f42bb6d51b166bd96dabf25dbb28f01e"}}, @l2cap_disconn_req={{0x6, 0x64, 0x4}, {0x9, 0x1}}, @l2cap_move_chan_cfm={{0x10, 0x2, 0x4}, {0xffff, 0x9}}, @l2cap_create_chan_rsp={{0xd, 0x4f, 0x8}, {0x6, 0x8001, 0x8, 0x3}}, @l2cap_conn_rsp={{0x3, 0x48, 0x8}, {0x4, 0x8, 0x6837, 0x4}}]}}, 0xa7) syz_extract_tcp_res(&(0x7f0000000700), 0x0, 0x507) r6 = openat$cuse(0xffffffffffffff9c, &(0x7f0000000740), 0x2, 0x0) ioctl$DRM_IOCTL_GET_CLIENT(0xffffffffffffffff, 0xc0286405, &(0x7f0000002a80)={0x7, 0x4, {r5}, {0x0}, 0x100000000, 0x3}) shmctl$auto_IPC_STAT(0x8, 0x2, &(0x7f0000002b80)={{0x1, 0x0, 0xee00, 0x5, 0x9, 0x8c, 0x6}, 0xe0000, 0x3, 0x6, 0x2c54, @raw=0x7fffffff, @raw=0x5, 0x3, 0x0, &(0x7f0000002ac0)="34d14592330d2effe2b242ce1c79f97a737dc0f7745d84eec469048ba4772d3ca2f34e3a83b5edadf6550e5b412cf5ee749b3324b30032ad2ae14cfa29ef4ecf97416fdc53d73bb80ea139aac1bf364ddcbe7409342155ae126f63d9e3ab1d5104befdd9", &(0x7f0000002b40)="e550413c2f469c9ef08eb7193b0a242e58befe012aa89d7c"}) r9 = setfsuid$auto(0xee01) r10 = getuid() fstat(r3, &(0x7f0000002ec0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) ioctl$DRM_IOCTL_GET_CLIENT(0xffffffffffffffff, 0xc0286405, &(0x7f0000002f40)={0x9, 0x6, {0xffffffffffffffff}, {0xee01}, 0x9, 0x8}) ioctl$auto_XFS_IOC_SWAPEXT(0xffffffffffffffff, 0xc0c0586d, &(0x7f0000002f80)={0x1, @inferred=r3, @inferred=r3, 0x0, 0x0, '\x00', {0x100, 0x6, 0x4, 0x0, 0xee01, 0x4, 0x2, 0xe78bc90, {0x9e350, 0x10}, {0x4, 0x7}, {0x3a83, 0x80000000}, 0xff, 0x8, 0x7, 0x7, 0x5, 0xd275, 0x6, 0x1, 0xff74, 0x5, '\x00', 0xf0e, 0x400, 0x2, 0x8001}}) msgctl$auto_IPC_RMID(0x2, 0x0, &(0x7f00000030c0)={{0x80, 0x0, 0xee01, 0x8, 0x3, 0x3, 0x6}, &(0x7f0000003040)=0xf, &(0x7f0000003080)=0x29, 0xfffffffffffff801, 0x6b4c, 0x0, 0x3, 0x800, 0x2, 0xbf09, 0x3, @inferred=r2, @inferred=r4}) ioctl$auto_KVM_GET_DEVICE_ATTR(0xffffffffffffffff, 0x4018aee2, &(0x7f0000003140)={0xb407, 0xee01, 0x8, 0x8}) statx$auto(0xffffffffffffff9c, &(0x7f0000003180)='./file0\x00', 0x4, 0x2, &(0x7f00000031c0)={0x8, 0xfffffffe, 0x0, 0xa, 0x0, 0xee00, 0xf, 0x5d3e, 0x5, 0x10, 0xff89, 0x100, {0xf, 0x8}, {0xfff, 0x2}, {0x3, 0x7fff}, {0xffffffffffffffff, 0x9}, 0x0, 0x3, 0x7, 0x8d6, 0x383d, 0x4, 0xb0d4, 0x503, 0x2, 0x0, 0x5, 0x2, [0xfffffffffffffffb, 0xff, 0x3, 0x259, 0xbe9, 0xff, 0x6, 0x800, 0x9]}) shmctl$auto_IPC_SET(0x3, 0x1, &(0x7f0000004300)={{0x5, 0xee00, 0xee00, 0x3, 0x7ff, 0x2, 0x5}, 0x2, 0x401, 0x3, 0xfffffffffffffffe, @inferred=r1, @inferred=r4, 0xfffe, 0x0, &(0x7f00000032c0)="2375c97389c89e9238f17ad922cf4ef603af0242d2c7e9c23df37d324f202ec0c69f30410994d35fa4fab856df9947bb0e8f8b1b9835591fef60711eab136c3b36cc9f35d503fdabdd6f15d5fe195b4d2f7620a65f50e2aa5defda8a666e0dc85d5d996457f1e022f973d57e301c6ec4d106fb332b9907e5391e82c6a6ac3dc834f2a4514de01e226ad3e536e48bf7de4e6de0e4ba56ec34aede67578561e5c210e01714fb7bf3cb3df6743ae95d1085d74a0e7581fa6e239c9975782c2471620944491b910b3ed0ddd0fd97055bd3519c6133fb27f5438dbf9695062e19b7f67074edf93614ccb26ac7b097511dab8b48a5be1e2c07c4e52411b3c74be9747463d4f373e170218fa174f2a8bed9b5d54f2fabeea80f41fe0d72064ec1ec2a3e47bdfaeb9b181aeea3fea97c8efbc14e90677044bed5df16f03042d64517f0fe9ab2d15289641a93c1736d1d036b881baebfa2901bee0350c6674194b2c1f41e3eb2a74b57bb411cb14c2be6d13bf79887cab1bc70907a157d8647153f8809228b952ad49277b27592f8d95edcbc0c9f6382194e45ef6f4277fdb24e6d3989d647e1f8f1bf8530cc8b558cf3f1b48ff5f6737f3b0e806c504a48e066c6d417d037612d7047635dbd4b9a2408543d0bfc66de1f616e201daba3a749d5d231e4122a8861265e0c46e5c57c2b680db37449b6213f01936d592578809abbf25399cc4174c3cfb11bf9f47889f07618b16afd0ca25d4343b5102fb0350d4c75c78ce54e1601b4c695b34b0cb67f71ca17631f8f66b5bda619a97bdbaedaa5c6a5546b2e405bc960923d8383ed4b5aabd2cc286c9a8b6a00d8ddcf9e74b44f4d3e35ab9178322b59ba803c414041646300b8f7cd40f57a13417e7e0f2f7f7b07fffcbe38b70cba5044f01f0f35dd27af864417b217b0c20aec97a1d50416857248f8436c03b8ee52429a4cb18cd2b068c986b84c68875841a22f8ebc65e0f361fe7dec5390d8d62ceea265c41fc711833498e8d6329559094e4897dcce60cbb5920640ef0b306d418c42887f89de2e60ca1032800a6d1c7d4b41f4c32cd4b1caf2768529cd353b7d8638971bedba831802d971164fe944ca203f958eed011d9a8a13744155bdef4e8186edffaecc12a849182946811128aa092272e2a1bdae8a810ed3937d60ecd172cb13428c452cc271309c10ed5f88d12578619436b59643204730fd600d6cdb22687f44901d7329021385da3c67db3b9ab88eae488f03508d3f00b5c82b91922e2f217db8ac0e76c94d8c25a9fccb90305ae050520c223e9f84deca84693a272480581443211af0fa64a6020e94d4dd569261b4f32184725ce7c46bf4b4de1382bee1dbe74cb12e599704b7044c4867a70420ec0b3507998d57247e000728d0bcc3db8fb62d3c87c13169c3085a755db1cfba8532d74b67eaa1581478fc2da1ae18cd4a501fc56559e76cf9a80844bbe9d782dffb54805730d311d243c030a727de8a30b3f5565ba6877a5261b62b0f6c2d2a9449849f448c5c43b2a8a77035f0eee8ef0d0aca61ffcac4f5d37ff3592b984493dc47387f5b3e7211d3bd10a4ca1af0eb85acce47ad1d54d25aa35022eb5118b451dc933ab5e7619bdbf12d70eee6c5442db9591ab3adcf666b85d1aa3ba90bd0585d72b3cb347ccd81725c5dceb3dece9bacb8f50bc7f17855ee6a1304f41ecdc9926e5826a5f51f353aed8e5e92d4a1f65785852a54b505616ec7209101cd105a6254b02a18cfbcc3bf9d8d57c61355c932e48ddea40a3c2fc31214675e99dfa63c9f857f059d6d7bf7acb8f7fd804758e33f15eea3edc09cd03ecfd13cd4332a4381c4e3463bfdd17f35335e4f9ba2a70dd7b5f019aa44689dca7ff0bfba59907eabe861e7768683cff8b852f4acb37277e56a55bedc4e1fc425bb77e5b215c3bed4bcd885f4922a0ffc7a92c2b3314e60603b58cc54c2fb188730e360a8ddeda246585b225faa9049f2d2a8d851c7816485dc53de2ee3ad049b369361c86701dc44db2987414cc7575744764eec97158520e4e368446a2c0a4482d53047148332f0d83d3bc55186c2c98c7b8338aeea3cbc716cab7f318611758847ec401d31f9a713c42a097e30f201f64fb37f86bc68d81dfeb73d79b88e50cde838176662ec718412bc6f8ea569ea3694c072dc01c12c9aea2607ac0150d5024b58b27368dd559bfcb30ee2747be4c18db317bb7fdb72db5be7fd404a1ae7dc377e3ba7d8aea7640d1497aa4c906e8643cc4f7186cd066d1acbaa7fe0f92ca9870c79de8abedfcf0badd3554b4d66d3d3442f023588242da4457e9d9b6ecbe55115a2af85ceb7900e6a9f98822cbfaf0f6e905bd343fdede0d675c161bc595effd26d9a4b20a811399790d68a1d398c257c50d671cb3d43a6ee7c14cbbab082dcbae1c9df4e047b22567918273dae0f9cc51bcdc0527a9ef6910d1ff5d7e4b4dd94388a8b7e777158cd475a22b382636e0c306ed78b145bc093917403029d3c9f5a83d8e42f1ba3517b85bfec15eb1f81c606b2121ae17c4b0334c57c0f7def2ab28e3c6f7019523fdf453de7eede33941ffaa8cbed627fefb2b86f513c9b75c35bc3711dd38c9cf32ba3c000e7a83fa34ad405d9bc3c85091751c66e5ea5d6e4dcacf5ad26528572b83926778cb124a70853d2c1c9d3ce73f96e6f25891c380fa7775946b74c0773df42501cd0a22935edb749bc5d84a8a9b8ae08354cabb06ec9c720d97e2c5fd4565cf8905975ab52ac86df12318afed015e5b09bb0d8b071d8911394468816c89b81a724c73442458fec2f293f895d4876187430ae6e916f45a2086f07aad6c0553b9e69e7a98d8d2e5cb9ee105aca5087b1f45fbeea15c43773324a1b663ee301df58cb5b46138b8cf2995d0413ff0b95e5b2c93097c14fc9da8ae502f21fb71155ba87469cf973636179782be186febf11cb4e5c77251fd43c2ba2730127aaf830e9625232ea2942e280daf6f08a5431a45c4e50b59077bab136f14b404e4179a5f6305994399657b9adb6d9c03cac7a643a764c8efc7c5a7cbbaf1765d08281dbe2ea094baaeb2663f635b893a8ef71208c6b04add9a8709490f863c291bd4063fa98a3d3ee7cbe3a4deedfeb462b7ed63cf1bc03fcb7cc8b109df20096aba36b30fd0283acf5a1dac69bb8732c5b47381c16efad8657e73f72fee1d097c7e80f9ba0ef5e7d00ffa1764b6df48bac35169c5ac246a960fac9a8da97229361e15e3c12994a0f92150de5fe885f0d2c6016ab137cdd23ce6d56d1e76180355585ad0df0773f34876a969bdc60a1e9b0c5304b926cfb798dabededf7ef9d3a54451a347fd0c0e532504214b6b6cec1ba3c6d34ecff8fd245ac1ac6aff59a4206d9f090713a6f36567d6dc351d3c78c52763e2206ad48bfec2593281dd02c001cf2b74c29557f221c770348a9119655823bf12d1f857f0e06af9880cac15587d393312074134350247c766e4c34e9cca90e07d1583d79b8cb28b3e87440655eff64a54dc8a3e0ab050a9f4dda71c0738f1a1290ba1a3b93536cfb217de8c0e70c9e9855edb819e2730f31fccf8389795075f045e84ca0cd47c7207af478cdc8e1082da7f6cf6e9856e6d9dcd96595f2a94792f9ecea49bce82328a12b869e28a8ae073a7247be22b3ba9d7f1070bfc8ac6ef9ddbc5e09af792a7206a38736613eec639a323bf988a8ea65dcfe51baeec1053979f269e6851ca6828d2f1df4b2c39a95388f32131b5e374578cac2f5a5d7eb8bb9c108fcbfff310852c644f27f9da831c669a2a6bc234e9e0c54ff572bbf2ebe06a9a07a9ff759a2a5bbab38414eb32454805170a851e82f7277bb4caab878ef80712aa4ba0bd5b367b98d832a454f04372bed77100f84d66ac2347d12d8649f1b9957a05d0682c64e64404143f56bfdfd9a05c426bab76330da1090af582c2b03599a91c153079f2960921446bab37089e8bb3a1c8b82150f5ae0bff847b7441f63facc2565e1f777cedafb4196147790fc6f973f5ec2eac45a9fb3f970e1ca1e2a20cd160af22d9c61e00887b1bc099acd1adc09af1aa0be739712e2965589be5c79e55a827292407420e51cd01f414c123d79789a298b80158f2a2112d945a8b56c56e188b5082dd94af84b2b85f97c31013c832996cde4b2672da245cef3c332641c3468103b95fbf139ab70d9623dd76986acf03a6d595c8a6cf37dbbe710541023b5556caedf6811fd5283a90960bbe161fa387899053a811ad5a083710be473ac6435a3acf43bee349a0590b0c8711879bcd409ca7060fb95c47ee7981c821a14cad652372ef22f9764438a4d9f179cebb53ec975ec5e495ebd54c185c8c6627306453f6a8950c03ebe5dec040dc244a6d230042fd1e88f4e8b5ba9a532aa3702ebab59e467ad1b86bf980836b8d6430241263beefc1feb5a58fda101f2e66de724d1d09594364160f4eac4fc7f8ecb113c405c4e6ba509138f6362192d375cfa619cc3cbb707b4b7d3cf1a14b8f0748f099c2535199e9913a5b92463b5da3bb0b6ad9c9c706be9c96c8fa86826ff2cecc51ecded39e7b5e0fab0aa5355a6beefa35272c79d77503c308e13f47643672b82ec9be479a25db7d53e0f63cb69b7a0612c40cb5f492d01b87ed249dbae8b30cfb2d3af01f39219f4c8c3965968ebb8711677af851b993de377a23b196ef3c265b305c5afe93ed950dd320bbecabb57f78af2312f7ae173a30c59f8b0b53e73838a1baa2cbecdd31622fc089d6463a2ac54f75393122ad243f659a640376f5ebca20e8abe783dcbdfecc30c905368055548c6654e8f3431140c6d2aeaad218a73a6e6dff074f53aa7ab2fe3607a5af1771d38d31d45a14ba9a4daf3159dce9b582486872656baad28b49a383fd8be8b99fbc9c196f9a621c561c3bf31d0b7445fd04e5a10087ecb5fc11867c59fe4866e37b00e615acdd1b01af1f6659220378accdef3dc2ca2724f0ad3bba9e39949b337f4c8bec49aa8e25a388b94cca63acaf7fa247ec776d0468671957b3fcbc098e0ee69aaf22c3e8acd2b006ec3ef98a8ab83d10b10888cbb9f5eb38f2991a818d261e52dc0e7915dfae793c6a02bb68f7023f76bb194b714267e65dd2462a2a926370fe51bf268d8a6d2c579b6de1f76b51f67b38ea7ee502b8f75295a4b3a340fda3c7dee10a20e6a3a62242c3e1d431fbeb3c497edf286d59135f14c2127cfb211702fb1b2b49794b03da6a5202c217b4c0abcac932ca7534a0d9e4d9fb946b208ee3441dd7a4630eb520e83dbffb1d5eac6e18154ff1e6662b5a59fb8db162f66e291516972b623be98f590b121c7ca851cb36b6d5d3513331f2dc18c81d34d9895fb90e47542691f8cac1d73a2e5d96c0e6758d83f6207beed66cf7c5ce866946a906790e25fefef9794a82b90de66ce285160d327ee352080a72cb392eb1b7221485c4cb81bce93d5f7f7541494b3b6db878b77bdcf6d5db2fd7d408de2cf3c834098b24c35e7705913695432547dd538027835e7309b3d2c2d656f4f35ee65a4834ccb8b65f367a8e31c1db1ed3ad48926bcc861804175f92ddf8336a83550ed2da50b90fee0ce42eb2fc0a4b1eb5c3e2ffd84c9d6949c4ea10947cc8119cee01ce67fd72300fa8a440dab5c5b553cc766720cbd66093d7ba676883148783b395515b3680c8c914c63c6292b82fd0f5657878b111ee5061e124f81283eff9ea26255b61701100749bcfb5de5a559d5beecb53e0c2adda15e656aa80c9eaf9b03080e799da125c6ef", &(0x7f00000042c0)="14dc2c36c1a4730f33f0a47756b437792e9ac78f742f821e328341e02b"}) newfstatat(0xffffffffffffff9c, &(0x7f0000004600)='./file0\x00', &(0x7f0000004640)={0x0, 0x0, 0x0, 0x0, 0x0}, 0x0) fstat(r3, &(0x7f00000046c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) shmctl$auto(0x0, 0x7, &(0x7f00000058c0)={{0xffffffff, 0xee00, 0xffffffffffffffff, 0x2, 0x9, 0x2, 0x4}, 0x6, 0x4, 0x4, 0x1, @raw, @inferred=r4, 0x40, 0x0, &(0x7f0000004840)="be999eee258959e93a2aa68dc2cb1d93b819d2b9d9e678e2e2506d54510e920728d75815bb8027e6a021febb8f0996f8add6877b74ce5eace74504cf3a4f3ac46a5a59400342351940bfb8767dd9955c9e9a9941", &(0x7f00000048c0)="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lstat$auto(&(0x7f0000005940)='./file0\x00', &(0x7f0000005980)={0x100000000, 0x7d80, 0x1, 0x40, 0xffffffffffffffff, 0x0, 0x0, 0x7, 0xfffffffffffffffb, 0x0, 0x2, 0xe6, 0x2, 0x4, 0xa03f, 0x10, 0x7}) syz_fuse_handle_req(r6, 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b288bc543af6afce718dfe86858edb5f0d4ed65dbe4121fddcaa1fe589a0a0bb87b489777a0b986331834aa20a92a2896f532b7685ffeed6403f10c820ba714018e3ba40ae500300d65b528af737ba328e1659dc0c499b49e77a859783358522b6a44edf3682c08ae1cce07d8b35cad770e155fc243a3fdc7ddab4c54d8d873f13cf8f6f6e17bff0db45b6fb8d2c466667985bfee1e48b4588af9e11e537b2b1d61a1eecf050d274e9381678998f40cd6d51eda410ceab9f913ab503ed1883db93d98448fdccb8cc7eb603c731272563ea585865de33e93d44db73bdf76186786d12986383b9654a3d0f1f1aa5ee7714585df93a6e50a4cb8ae6d43a5a24d175a77a1a65d0e13bf4caa6ece20567205b544bb7b40911621a20deee12aef0ce38ce3d458ca09892eb8f5abd2c7ae9df1a372efdaceae8cf9aeae0674a105f3dd81c865cddb3f906a6f705f127664cfd105f75c2427de9e083d8509e15ca8d1be7704ea4a5d7d7361c92886ab7714f1842cc81de3bab5f2e1a3321fcf29e1f19bab01bfe22986f290210173bb89fd94bd8aa8cdd077b2ecd218a0a0bdf7dcb5c55d25179414d91fb24a7a19b5f7d07cd033158d738ede5e5b3bee3df6885ec45be3b7b4e9c04c52d9a1f9631e3f0071ed47715dfa55b4051d4262cc1acf9b98224f60fb3bedadf57195f7f60b0e2d7053564baa42743998688a8cde02c08637988d43c5053d87718c27a6cfefbbf6a7ce4a1c3e4a3f1c6bb19f78f62883709cce44f88ee772e72cbef74f37a0ebbe606c80ff3015df6ed850eb56179899e57be0fbf58fc03493e825be2319ddd313d7224e41d98c6e914b5624fd98ac39631dabfa90bda0d492db85201d6d71394a5dc2936569c52e709d502b6b27de458220aaff755f9484733c26f9d8dc3f7953098891deb9284227745793130ef6c63011954bc64dd7b578e2fa38cec94f317380dda6c2c3d858ae8dbd2af3d491e94f22a73b780381dcbae60c780af516aae40c3b69f816762d644a19b64c45b7f61874632a3f6753dbd0b413d29ed285ec9402ff9cd41fe95936624dfc8fd9155f8a598eb4f83a7a488161e7fb0cf4679bb5920d6eab1d071228406ba0d2f70ec04334600ce261cd270ba8339d00b4693bf6c6db74ca7eebcbb07a000cae8b16170326e73ea985695176c27c21dd48c1f68157c165db8836a63fdfa1d42c67be80212b3299efe8369a8151980093cbb802ac69d3f0b50cfd31eab47d930fff9760462deaa667bd34cfb89f5545d73def8ce373c41dee4f2e43116cead5004d7d446c308b50f6ab9468d292e4c8f225845a9602178da8eb75b654801f7f41af25f80231f8e1910d2156cb0f57e6b09e4ba6dbd44f70585cbd36ce9b8a3e98da1ff79c80b73d29db40fd1ff46c1a2907ceb48bd6ff0bf710df05c8a3cdb3725bc962a1596025b46934c279e8adc81544d0e5db5a8ca4426bc858a6dd9cd639037cc65f1075c52295dd546401e16403f1360f32317bd26addb7822d29eb966a1a8405d418163b6f056c99c0220ff802ba994387577c33e9ecfaa2eade4d08ffdf08482d19e4042be1c6bd18cc0648a31b22b527f0764ed83a28530633f110f6bc4e299f7badcb7f9d7fe45da9abcdcaafea56c0b2aee9d67d9da2a7088aac5c6fd6d507c36fb9adaf84c12b372b0eeedd21911c8e7ecd2a831a26b428b7e1609e5ee87741fca84a48bf0792daa13cedb2e96f55c4c45d4b563c91f31b3bc20e8ee4cdc685d3c4d0ede13172f595621bd7537201241295f6521d677276887f291fcdffc62021c558cfc657e8c2db9b7cc18d3ce37fff23e88cc1e2503613a09da72e2008839505a7c347833fb256a7cb50ad61d29a7a6edc99c2429f7eb82eaabae84f83955bbb3abdb9873640fb8a68ef071808d3b5eb5b595fa2fc0e1e9ed21719239c150b746d63347c04d1da59fc677bbedb3a88902132f4effe836cd93fb2dc66e988fc59b0a56133fc39d1f1c560f744f07bef784a6b682f5f5eb55a58e0c6ed7ca8f1576f3fce1465232967f41e66582cc9284b42e356c3a1cd0b5875ad5d42bc4e286eb5601d9b784c284aad19a10b514a31b2b4487aaabb106db03c84122f9d3f6a2c1b8025f430486113fffd1ac7418aa2c213fe30f29e5dca95af991cbfa38d7508408abaeffa573f7aa4ae796302ddaecab0cd851ad807421c4ba2b98f6ddb61903109e38cf2a81dc33fe94d09f457f4ed6165fa161fc9f0ee81eb4849e289d7a3491c97e2370b99e136796f732582a153cb19c3812a03f46de63152a97169f86954901cd88ba9d633e3a2fdf57d29b94ee036bbda59a1a7145c792ddace5100aa26ff8759f0e0e86fcb76c10f97655a663667278f5de7cf3b0c4966cb5d06b75f7db70428516e56b814f2234e45f9dbda4469e2b9f2b32c2947fc67937110cd532c08a16e90a815af7498628532329d00a8ddb323cf695d1f07fb424086fe16b14f332dd85467de376026dbd3e24b2941aab923cdfcbbf5be82d6d2228bb1444f7297bf5c2ac96bb873d12a384e215a9f8c5ab16f18b2389f190396f1a5ff86f91270d517f57a442fcf34110f543239ade76d9bd6a82e6a2c5124b6138fc81bc4db42976d0bb42c0cc5d45d496ef41ecdf666840a59bf8bc201037935944748f9229271ab44069f702f736e3528718de1f615736d0f9e4974db11c30579122e611228b9fb8caf4873640adaff7548bfdc44e84226d7a80e922ab3c545a4f3209424efee5ecf5871372b14616f9f13f112b8dd5a0036700d28cf2e15bf63516e493e78e5e68acd0d2991c3ba42cef9a1ef8621f79ff2fc81546150fe4b0d2f8c4da60a11af5da15b2380ff4032bc7677611cb8638c3609c136172714577cd3a3988078cd89f12623e9dce82efeebb3fc8633c85a60293622e065d113e787768f0fffa9f629bb41fce5b8bb0fe73cd7b23b418d1b9127622b80b4e264af4fbf5f552d0d61cb1f09416a296cecf89e328b2ec20b3535cad54adca5e19400d7e3fd5f58b1567e61983a30707b677b134311f9c7a7ad49b38722ea13e902dc118902beebd9a265152c61885d281bb85d6d008fc70c3ed8c47d9ec95eac54bc894cec09f8dbcb7931708a440c9a27ebc74646ecaee8701961c3c658697ebdd3d8977c46a3d4b5e6aa0da3f1cbcd2393e91d9f4e7ff9533f8732e169a2be9d8993cea4c7ef0d7ae87fda6c4dca236096b06795c2b4cd996e972ddc686ce6ca9e3873d5f41921e0b5fb8dc1d6293a75595157aee7026331c03c1e506be6437ca00fb907298fd436ea083fe59678c757461a247738edb3cdc692196004e1fafc96e65388016f6e656ff805998ba68fb546fa7800090e50db5e8614c7c440fc8e77a9e282fdc681685fff358ebeadcf1ae222318389ba09206e309a385333066d0d7b9a3c24699dbfa2c4f8b6f11f25f8570e4a36e92b86b04a937f59b3ad143cab807831dbd25e794a8df189649ebcf6c2b1a81ae36f7ce52438bd338c4885cfbb331040687e1f94b51f0134f5cbd8b3e6446678735c1641c484f3817f038fd29da6177eb17739f4dfefd0a545747dbe12d253abe8b0313351918e6d97009068048ad1fcbab1a32c68c70965087cce5669b12a868ed27321172509b691043efad8aabfa0ec60e84abc8d4947e12ea1864b99b0a98e4a867429e78a9447e777136475a6721d42fe622b67ee3ce003222cb80c5db4a4bad2fa9c78ba3cb1b2bbe7311a9e118181dcd9cd85a9fea4ac6efb7a2ba668b5c521e292952116f48fc0b6a158b2418232b032dbaf2d80f00f43eea9e42dd57db2852fe704ef796bd383d448166e9f64f78c51d054d5e98220990cdbdd0ba7f3e707934320d8cd2f4532bccda6ae077294c6fb47bd72eda307b001e3fe450908102b69483c42eb47dfceb4c4704624634dfe7c57f1e67cdea81f47300aa6a745bdb512b95d8d9904f2c839475fbf5ca3c47baa65c21bd37931277c304bd0bdaaa322bd8d2c8d61ce863aa12f012e712963875acb24c9fa825e28d1e3f54a0e20e6b328d1ee6fb3e9a0cb2a1a1a3e77999bc46ff30454d75e6a470ec4cc0b6826ebdc6dfa584456a9c7cec1652be252cec59a88f62a3a9065eb27143889c98514e4b39c16ebd514e4e8290e0b3432cff78afc0bead17bb78ebbe606d1c6cfea2e360077c5f5103261eb0bd9d4fc6d2f44ec17f428ec9e7a20fa89cacfc11677aeb5d3ebd7e51c992a7faf10b6bd5f086d754f679279ae967afe6014defe2937c27cb4342ce1f5c621aa74bd7c7d3b6a73a5cfcd2d40f3340b6cd725c30fa73050e9fe4910d64a9a29f3e5cac8a93c8279a33700a0aae7f138c0e88bebf07aa2cb20aaa0e322f5a81bff01e3af408b393bc937d7dc8f60832da73a21e69579a1cd40a54cdebfa648fe1131c678fb73fb8559db9317a194b527665edefd6dc52727cacf16008271ebd8efd24c9896c9c51aca17443403bd4cd2771e377290b2702441e7b2aeffe0cc95a4e600bef72ab5e6fc", 0x2000, &(0x7f0000005b80)={&(0x7f0000002780)={0x50, 0xffffffffffffffda, 0x7, {0x7, 0x2d, 0x8, 0x1020000, 0xfffc, 0x401, 0x12, 0x6, 0x0, 0x0, 0x40, 0xce}}, &(0x7f0000002800)={0x18, 0x0, 0x6, {0xbb}}, &(0x7f0000002840)={0x18, 0x0, 0x1, {0x5}}, &(0x7f0000002880)={0x18, 0xfffffffffffffff5, 0x4}, &(0x7f00000028c0)={0x18, 0xfffffffffffffffe, 0x3, {0x7}}, &(0x7f0000002900)={0x28, 0x0, 0x300000000000, {{0x1, 0x8, 0x0, r1}}}, &(0x7f0000002940)={0x60, 0x0, 0xc, {{0x0, 0xff, 0x2, 0x41, 0x40, 0x6, 0x8dd, 0x5}}}, &(0x7f00000029c0)={0x18, 0xffffffffffffffda, 0x9, {0x5}}, &(0x7f0000002a00)={0x16, 0x0, 0x6, {'\xff\xff\xff\xff\xff\xff'}}, &(0x7f0000002a40)={0x20, 0x0, 0x0, {0x0, 0x1e}}, &(0x7f0000002c00)={0x78, 0xfffffffffffffffe, 0x3, {0x8, 0x6, 0x0, {0x0, 0x8, 0x2, 0x8, 0x80, 0x5, 0x3482, 0xa246, 0x80000000, 0x4000, 0x3e08, r7, r8, 0x7f, 0x3}}}, &(0x7f0000002c80)={0x90, 0xffffffffffffffda, 0x2, {0x6, 0x0, 0x2, 0x8, 0xfffffffc, 0x9, {0x1, 0x3, 0x2, 0x5, 0x761, 0x7, 0x58d95c3d, 0x7, 0x7, 0x8000, 0x8, r9, 0xee01, 0x0, 0x400}}}, &(0x7f0000002d40)={0x158, 0x0, 0x8000000000000001, [{0x0, 0x0, 0x0, 0x5}, {0x2, 0x291, 0x3, 0x0, 'a-$'}, {0x6, 0x1, 0x1a, 0x5df9, 'bpf_lsm_inode_getsecurity\x00'}, {0x5, 0x4}, {0x3, 0x2, 0x7, 0x615d, ']F,[@%('}, {0x3, 0x4, 0x2, 0x5, '#*'}, {0x6, 0xc, 0x1, 0x200, '!'}, {0x2, 0x1, 0x3, 0xffff, '%[*'}, {0x2, 0x1, 0x6, 0x10001, '\xbb\xbb\xbb\xbb\xbb\xbb'}, {0x2, 0x9, 0x3, 0x3, '\\$&'}]}, &(0x7f0000004380)={0x280, 0x0, 0x7, [{{0x1, 0x2, 0x9b, 0xa, 0x40, 0x2b, {0x1, 0x0, 0xf5, 0x7, 0x8, 0x7, 0x5, 0x9, 0x1b, 0xa000, 0x4, r10, r12, 0x4, 0x10000}}, {0x4, 0x6, 0x0, 0x7f}}, {{0x1, 0x0, 0x9, 0x4, 0x9, 0x101, {0x0, 0x80, 0x80000001, 0x8, 0x7fffffffffffffff, 0xc14, 0x7, 0x2, 0x5, 0x1000, 0x7, r13, r16, 0x7, 0x3}}, {0x1, 0x8000000000000000, 0x0, 0x9}}, {{0x3, 0x1, 0x7, 0x3, 0x10000, 0xfff, {0x6, 0x3, 0x4, 0xffffffff, 0x5, 0x1, 0xcf, 0x5, 0x2, 0x3000, 0xf, r17, r18, 0xdda, 0x800}}, {0x0, 0x480, 0x1, 0x7, '\''}}, {{0x3, 0x0, 0x6, 0x6, 0xae90, 0x7fff, {0x5, 0x2, 0xffff, 0xb6, 0x9, 0x8, 0x200, 0x3, 0x6, 0x6000, 0xfffffff7, r19, r20, 0x4, 0x6}}, {0x0, 0x3, 0x6, 0xfffffffd, 'wlan0\x00'}}]}, &(0x7f0000004740)={0xa0, 0xfffffffffffffffe, 0x7fff, {{0x1, 0x2, 0x8, 0x8001, 0x9000, 0x0, {0x3, 0x4, 0x4283, 0x6, 0x7, 0x1, 0x4, 0x8000, 0x7f, 0x2000, 0xa, r22, r24, 0x2, 0x9}}}}, &(0x7f0000004800)={0x20, 0x0, 0xa, {0x8}}, &(0x7f0000005a40)={0x130, 0x0, 0x800, {0x10000000, 0x9, 0x0, '\x00', {0x4, 0xfffffff9, 0x8, 0xd, r25, r27, 0x4000, '\x00', 0xe, 0x1, 0x9, 0x4, {0x75, 0x10}, {0x0, 0x2a}, {0x4, 0x647}, {0x8, 0xfffffffa}, 0x4, 0x9, 0xf1, 0x7}}}}) r28 = socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$SEG6(&(0x7f0000005c40), r28) syz_init_net_socket$802154_dgram(0x24, 0x2, 0x0) r29 = syz_io_uring_complete(0x0) syz_io_uring_setup(0x19f7, &(0x7f0000005c80)={0x0, 0x9c5d, 0x2, 0x1, 0x253, 0x0, r15}, &(0x7f0000005d00)=0x0, &(0x7f0000005d40)=0x0) syz_io_uring_submit(r30, r31, &(0x7f0000005dc0)=@IORING_OP_TIMEOUT={0xb, 0x28, 0x0, 0x0, 0x3, &(0x7f0000005d80), 0x1, 0x10, 0x1}) r32 = syz_kvm_setup_syzos_vm$x86(r15, &(0x7f0000bff000/0x400000)=nil) syz_kvm_add_vcpu$x86(r32, &(0x7f0000005e80)={0x0, &(0x7f0000005e00)=[@enable_nested={0x12c, 0x18}, @uexit={0x0, 0x18, 0x4}, @nested_create_vm={0x12d, 0x18, 0x2}], 0x48}) syz_kvm_setup_cpu$ppc64(r14, r29, &(0x7f0000c37000/0x18000)=nil, &(0x7f0000006100)=[{0x0, &(0x7f0000005ec0)="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", 0x230}], 0x1, 0x1, &(0x7f0000006140)=[@featur2={0x1, 0x7}], 0x1) syz_kvm_setup_syzos_vm$x86(r29, &(0x7f0000c00000/0x400000)=nil) syz_memcpy_off$IO_URING_METADATA_FLAGS(r30, 0x114, &(0x7f0000006180), 0x0, 0x4) r33 = socketcall$auto_SYS_SOCKET(0x1, &(0x7f0000006240)=0x5) shmctl$auto_SHM_INFO(0x80000000, 0xe, &(0x7f0000006340)={{0xfffffffa, r11, r27, 0x3, 0xffff, 0xe6b, 0x7}, 0x0, 0x357b, 0x3, 0x8000000000000000, @raw=0x74, @inferred=r21, 0xc0b, 0x0, &(0x7f0000006280)="7010159f68d5ae907137fa70d286a18ba48348f88d1fa097cfe82bb9559e66c97b4ccf3acd9ce240544907f4538170e45e0c6de8adfb6ae94ed44b616a63737814f1894473d9519f2130e8a0e061c96e46a99a5316e46b6b461348bb03dddad70675bcda5921bdb5038cc7dcade7ba3e106cf315e2ad48818a62c7", &(0x7f0000006300)="1368248ad908eb425081239c0a10a514ef06f16fa38bc52b0f03b04d36f544263cb4a0a3ffbbafa80089cf8b02841df433c6b97da8fbfe285fccd05ad4"}) syz_mount_image$fuse(&(0x7f00000061c0), &(0x7f0000006200)='./file0\x00', 0x400, &(0x7f00000063c0)={{'fd', 0x3d, r33}, 0x2c, {'rootmode', 0x3d, 0x1000}, 0x2c, {'user_id', 0x3d, r23}, 0x2c, {'group_id', 0x3d, r34}, 0x2c, {[{@blksize={'blksize', 0x3d, 0x600}}, {}, {@blksize={'blksize', 0x3d, 0x1e00}}, {@max_read={'max_read', 0x3d, 0x100000001}}, {@default_permissions}, {@default_permissions}], [{@euid_lt={'euid<', r13}}, {@subj_user={'subj_user', 0x3d, ','}}, {@uid_lt={'uid<', r26}}, {@audit}, {@dont_measure}]}}, 0x0, 0x0, &(0x7f0000006540)="d3aa92") syz_open_dev$I2C(&(0x7f0000006580), 0x800, 0x40000) syz_open_procfs(r5, &(0x7f00000065c0)='cgroup\x00') syz_open_pts(r14, 0x201) syz_pidfd_open(r35, 0x0) r36 = pkey_alloc(0x0, 0x2) syz_pkey_set(r36, 0x0) syz_socket_connect_nvme_tcp() r37 = syz_usb_connect(0x3, 0x504, &(0x7f0000006600)={{0x12, 0x1, 0x310, 0xf, 0x36, 0x49, 0x8, 0x7d0, 0x4101, 0x4624, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x4f2, 0x3, 0x1, 0xa2, 0x40, 0x64, [{{0x9, 0x4, 0xc2, 0x7, 0xa, 0x50, 0xb3, 0x17, 0x7, [@hid_hid={0x9, 0x21, 0x3, 0xdf, 0x1, {0x22, 0x238}}, @uac_as={[@as_header={0x7, 0x24, 0x1, 0x2, 0x2, 0x2}, @format_type_i_continuous={0xb, 0x24, 0x2, 0x1, 0xde, 0x2, 0x0, 0x5, "", "116df7"}, @format_type_ii_discrete={0xa, 0x24, 0x2, 0x2, 0x8, 0x3, 0x7, ';'}, @format_type_i_continuous={0xa, 0x24, 0x2, 0x1, 0x4, 0x3, 0x1a, 0x9, "0f58"}, @format_type_ii_discrete={0xc, 0x24, 0x2, 0x2, 0xf270, 0x100, 0x7, "3129f9"}, @format_type_i_continuous={0xb, 0x24, 0x2, 0x1, 0x1, 0x3, 0xf9, 0xa3, "", "540613"}]}], [{{0x9, 0x5, 0x3, 0x38, 0x8, 0x1, 0xf9, 0x0, [@uac_iso={0x7, 0x25, 0x1, 0x1, 0x80, 0xffb0}, @generic={0x62, 0xe, "0bef679d6359d71a144a38a22834d12bd19c60b65829f44ebe6b1258a3a7a0cc60f30007c2c4d2a3cb88fb6beb580e628147114ffc6a4e39b19e718fc2cd0fa5af688649abe3db58d0707203283b6bdca05f49fb16b3618fcf4dd01cb2ef3509"}]}}, {{0x9, 0x5, 0x4, 0x0, 0x20, 0x1, 0x2, 0x5, [@generic={0x4e, 0xa, "aade99ccf348061ad92225e05a396a2ebe892ca65de9efa665821e34200c5caa943c9b1a3eb10828e13815e6120c4787a4d395b1e32a8ba1ffb991375879d517862de6e9cb6f723335dd156a"}]}}, {{0x9, 0x5, 0x3, 0xc, 0x3ff, 0x7, 0x0, 0x7f, [@generic={0x33, 0xe, "08b928c563b3fbc136beaf22bf46e0cf55e3f262485f30b28a3f9a3ec901ce8066c6788d469526c55bf0c2b3ca5005539a"}]}}, {{0x9, 0x5, 0xb, 0x4, 0x3ff, 0x3, 0x40, 0x7f, [@uac_iso={0x7, 0x25, 0x1, 0x87, 0x9, 0x4e}, @generic={0xcb, 0x11, "3b9dcacc679086d78f927ab634935a18813b23cceffea69b630aa97cc469907afac2a30327adeb901d9fb900ad82138098cbff5fed7fee2c7d701290ce4ad020a9da29675f8f051399879db57022b89c990120513aaa70c51847b128dd73bdea25cbb545c1ae8352024ca93cd7ea881cbb0920eedef072efe9da61b7bd77a3c085d712c142ca88c39f8edd17d6fb9a7ef8d0fad5a15a333e7ed05e7e9ae6e2a464c3159ab1a60e33afbf29a2f678c8c9e2f8f7a8d03d5582529b277b4be85583e5d81bc95749773042"}]}}, {{0x9, 0x5, 0x1, 0x3, 0x8, 0xe, 0x8, 0x7f, [@generic={0x72, 0x6, "6ee2410469b7a8b23e3255a554b63d5beb1b34b4871894e3df69e7558ce56cc83b83ae1ac9d1dec0882d040a7801a300c7eac26d78d2daff6bd47caca500d46c1b5a0b9e1ada0e7b606b6fd6b39db81c7c954c04d4ede980ea2ca80b113bdb4be747e1b6dc9281d77e85683aaac6534c"}]}}, {{0x9, 0x5, 0xb, 0xc, 0x5bf5a5d27b9960e1, 0x0, 0x1, 0x7}}, {{0x9, 0x5, 0x0, 0x0, 0x10, 0x5, 0x1, 0x77}}, {{0x9, 0x5, 0x5, 0x0, 0x208, 0x1b, 0x9, 0x7}}, {{0x9, 0x5, 0xf, 0x0, 0x40, 0x30, 0x5, 0x7, [@generic={0x50, 0x6, "011daf9ad3aea956d0184e8907d7b0b0a6aa9e921ac64d7a9e5a0ce5b5e0afb47868c9c4a76b6509835bf9ee45a7891eaad172a875634f7f36260124669b2d1b04c2fda38cc936921cb561245efa"}, @generic={0xb7, 0x21, "53542a37449c9d1a4e696a99527d5ad5bdad1c7e724128df50295aa0c61401ca6cd5cd356977f617e8b11448466269116af93b9dce05ded48792719f65bfa91da16b85ee1d6236084d8170f97c0a74f102663c645b0ee1b0fa7904e646438d8b16218604561c1abb98289e3ecba88e78f67361478774462a4d82749646452004b2482082e9c1b2f2972419f6f752e1bec5e1925fce215edb8265344da85b85164db3c633e4e431fec4c609664eac2b6b1f5f7bdc10"}]}}, {{0x9, 0x5, 0xc, 0x10, 0x10, 0x3, 0xf9, 0xff, [@generic={0xba, 0x23, "5c48a51f46fa078d84ce434e722a7fa4e7021ae9d9b76677366de6a10ab3e94e0969d7fc2a24536e1150d94672c5418b02951def7e20c7dfe0aa26adbf0bfd8f6dd351fa30990713537134af9c14fa84dee2b95af8e134542b5a1ad540329a97cbdd1a2422f13e6e03b49f7105a6bf4900ea723fbe14f21d182aeef2cf5162591f8bd38b85d45d723cef02132b5e45467dd8d430c378b8bf2d98403267010379de7bd04c800dfd5fae0c0ddac0b5cffde98ca400dce30ddd"}]}}]}}, {{0x9, 0x4, 0xfc, 0x4, 0x1, 0xff, 0x6, 0x39, 0xc, [], [{{0x9, 0x5, 0x0, 0x2, 0x400, 0x9, 0xdf, 0x2, [@uac_iso={0x7, 0x25, 0x1, 0x3, 0x8, 0x8000}]}}]}}, {{0x9, 0x4, 0x9d, 0x1, 0x3, 0x48, 0x48, 0x40, 0xa, [], [{{0x9, 0x5, 0x1, 0x10, 0x40, 0x2, 0xf1, 0xc, [@uac_iso={0x7, 0x25, 0x1, 0x81, 0x81, 0x5}]}}, {{0x9, 0x5, 0x7, 0x8, 0x40, 0x6, 0x0, 0x1, [@uac_iso={0x7, 0x25, 0x1, 0x2, 0x0, 0x10}, @generic={0x6, 0xe, "555dc78c"}]}}, {{0x9, 0x5, 0x5, 0x4, 0x200, 0x9, 0x40, 0x3}}]}}]}}]}}, &(0x7f0000006c00)={0xa, &(0x7f0000006b40)={0xa, 0x6, 0x200, 0x3b, 0x5, 0x9, 0x40, 0xa4}, 0x30, &(0x7f0000006b80)={0x5, 0xf, 0x30, 0x3, [@ptm_cap={0x3}, @ssp_cap={0x10, 0x10, 0xa, 0x1c, 0x1, 0x7ffffd3, 0xff00, 0x1fb, [0x0]}, @ssp_cap={0x18, 0x10, 0xa, 0xf, 0x3, 0x8, 0xff00, 0xd00, [0x0, 0xffc0cf, 0xff0000]}]}, 0x1, [{0x4, &(0x7f0000006bc0)=@lang_id={0x4, 0x3, 0x42f}}]}) r38 = syz_usb_connect_ath9k(0x3, 0x5a, &(0x7f0000006c40)={{0x12, 0x1, 0x200, 0xff, 0xff, 0xff, 0x40, 0xcf3, 0x9271, 0x108, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x48}}]}}, 0x0) r39 = syz_usb_connect$cdc_ecm(0x6, 0x8f, &(0x7f0000006cc0)={{0x12, 0x1, 0x310, 0x2, 0x0, 0x0, 0x8, 0x525, 0xa4a1, 0x40, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x7d, 0x1, 0x1, 0x6, 0x10, 0xb, [{{0x9, 0x4, 0x0, 0x4, 0x3, 0x2, 0x6, 0x0, 0xe, {{0xb, 0x24, 0x6, 0x0, 0x0, "d60132f149c6"}, {0x5, 0x24, 0x0, 0xbb8}, {0xd, 0x24, 0xf, 0x1, 0x7, 0x32a, 0x8, 0x1f}, [@obex={0x5, 0x24, 0x15, 0x101}, @mdlm={0x15, 0x24, 0x12, 0xfffc}, @network_terminal={0x7, 0x24, 0xa, 0xb, 0x9, 0xf, 0x2}, @call_mgmt={0x5, 0x24, 0x1, 0x1, 0xff}, @obex={0x5, 0x24, 0x15, 0x7ff}, @mbim_extended={0x8, 0x24, 0x1c, 0x5, 0x32, 0xa}]}, {[{{0x9, 0x5, 0x81, 0x3, 0x10, 0x7, 0x99, 0xb2}}], {{0x9, 0x5, 0x82, 0x2, 0x8, 0x1a, 0x7, 0xc4}}, {{0x9, 0x5, 0x3, 0x2, 0x3ff, 0xa6, 0x3, 0xa7}}}}}]}}]}}, &(0x7f0000007240)={0xa, &(0x7f0000006d80)={0xa, 0x6, 0x300, 0xfb, 0x3, 0xc, 0xff, 0x1}, 0x3c, &(0x7f0000006dc0)={0x5, 0xf, 0x3c, 0x6, [@ext_cap={0x7, 0x10, 0x2, 0x4, 0x7, 0x7, 0x56a9}, @wireless={0xb, 0x10, 0x1, 0x4, 0x42, 0x2, 0x3, 0x63ac, 0x9}, @ptm_cap={0x3}, @ext_cap={0x7, 0x10, 0x2, 0x1a, 0x7, 0xb, 0xd5}, @ssp_cap={0x10, 0x10, 0xa, 0x7f, 0x1, 0x12f, 0xf00, 0x1, [0x3fc0]}, @wireless={0xb, 0x10, 0x1, 0x8, 0x40, 0x7, 0x5, 0x2, 0x4}]}, 0x8, [{0x78, &(0x7f0000006e00)=@string={0x78, 0x3, "d7b4cadb72dce27ca7fb5209aad1b3585c8188f06126d3f18edd4cfa47addbd2a6715dd4adfa697f02bcb089ed2013268885f9c785bd7c5d4ee50de3cecd7a9d0b7b2e708226e8acb1e908b1f5c0c2a8132465e451fe49f15e60c8d3b9c84305d0dd8f634480050259cac3ce9cfc95092bd7e491866d"}}, {0x13, &(0x7f0000006e80)=@string={0x13, 0x3, "7d97d9eb8af2943b9985d30caaead89b5a"}}, {0x4, &(0x7f0000006ec0)=@lang_id={0x4, 0x3, 0x44a}}, {0x4, &(0x7f0000006f00)=@lang_id={0x4, 0x3, 0x1c09}}, {0x93, &(0x7f0000006f40)=@string={0x93, 0x3, "a7e5529238f796c9000c753f41b8183140f3914b76bf1c428ebe8d39c6f072b481ecad746274e7c538790d8c730d20517a2244a3781b115c07d40e9ec9c059f12d0d15f46ccf0cde26efa9d02a119e2cc5627c7f4241244d0843ef0018b12fc3cd467b5fdce58a6975d07ac352a42f1615178dcb0990aeca46461306816becdeb896bac765ded81ebd75ba4d97229b15a9"}}, {0xc2, &(0x7f0000007000)=@string={0xc2, 0x3, "d5a3d483012b31e49dfa33fd9593b4b668aa6f3f39301837d951daf256316819f5e71fa651bb06b2af65af27c7bf0fda1eaa1e32231b75f4d06d4923c76013e9d76a12202816ff8740a9fb4f2eceb27bd2e1ab1e7bd4ba7314b33d15e0fe65aa2b2e7ffb3236cb615493391feab3bfb828182fb60c4fd6fef422e106f384be633905ca1aaf83d9ddb2a2902e2a117de4e596145809b3b34b1ea432b412391ffb25ac255e7da11d994e7e9e98e0723a2757e580959dae6fa7ac2afb8dc5384b4a"}}, {0x5b, &(0x7f0000007100)=@string={0x5b, 0x3, "a794090968e46e97b7269fcae0f818bf9a99a50de60e5cda684721be6dc34820f912c338d7dc8ac50d93fc92a2ebde1a02652089726608a9e5877f4cacf91b9eec5b5eb2fc7fa7bb3d26607537f0e55d00793e7cf13bbb367e"}}, {0x90, &(0x7f0000007180)=@string={0x90, 0x3, "f9926b0dae8c462352105ed1c4d3ff50cc9ce982c397e92e576101317190c2327a2ba723844149e55f4b961d0f0defbc7edb70f5d61169074265acd81ceec5a15b66a5e5009236d062994af9afcbe04736aaad6bb55cb30e057c42d0df7481603c3c959b5e4e20f05382a9d9ad4c01680ae3597ef403dedf0b6c53fdc70d13ed116ef9ea902093f1c9f4af4cec25"}}]}) syz_usb_control_io(r39, &(0x7f0000007480)={0x2c, &(0x7f00000072c0)={0x40, 0x7, 0x1b, {0x1b, 0xa, "90730f1d9e91d2e1df577143e18c680eace6d6c12299246128"}}, &(0x7f0000007300)={0x0, 0x3, 0x44, @string={0x44, 0x3, "87d74dd46096809a8f4988ddaa95a532fbc22d8585d1592857ad0ab00c17a4fef3b229a02fe0e3649316bed9f44f588b1f0b47bc86705129440938bd68a29a84f829"}}, &(0x7f0000007380)={0x0, 0xf, 0x41, {0x5, 0xf, 0x41, 0x4, [@ssp_cap={0x20, 0x10, 0xa, 0x0, 0x5, 0xe85, 0xf00, 0x3, [0xff00a0, 0xff00f0, 0x30, 0xf, 0xdfbf]}, @ext_cap={0x7, 0x10, 0x2, 0x4, 0x4, 0x1, 0xff}, @wireless={0xb, 0x10, 0x1, 0x2, 0x1, 0x1, 0x3, 0x9, 0x8}, @ss_cap={0xa, 0x10, 0x3, 0x2, 0x4, 0x3, 0xb6, 0x5}]}}, &(0x7f0000007400)={0x20, 0x29, 0xf, {0xf, 0x29, 0xf, 0x4, 0x6, 0x32, "b2c84f72", "f5fb7b90"}}, &(0x7f0000007440)={0x20, 0x2a, 0xc, {0xc, 0x2a, 0x3a, 0x60, 0x4, 0x4, 0x7, 0x8001, 0x8}}}, &(0x7f0000007980)={0x84, &(0x7f00000074c0)={0x0, 0x0, 0xcf, "9f51c6ee54bfc1fc30d787499ab24493c2f30f78fe088e724ad29badb6c2406874a909d80e000075bbe92f6f4e8b3514481d12b869deb6f47f3b458369b7f024fcc02319e38cb7467c76b370d378ee0256daa3acea1f71be5e4c7d8a50037ba84e62445bbd990a26b44f60198d63505fbf005b96637abf5eb692a2ed0d582692e3f259387ed9d1955917dc53a246eb20e281e78386ed8734b81075e43b5b3e15ea60dbd497e07ad8847992dd87831b20d05263c108d70117e52170efac1777d3d376876358c2297172b2a023b52c05"}, &(0x7f00000075c0)={0x0, 0xa, 0x1, 0x2}, &(0x7f0000007600)={0x0, 0x8, 0x1, 0xfc}, &(0x7f0000007640)={0x20, 0x0, 0x4, {0x3, 0x1}}, &(0x7f0000007680)={0x20, 0x0, 0x4, {0x1d20, 0x20}}, &(0x7f00000076c0)={0x40, 0x7, 0x2, 0xfff8}, &(0x7f0000007700)={0x40, 0x9, 0x1, 0xd}, &(0x7f0000007740)={0x40, 0xb, 0x2, "2289"}, &(0x7f0000007780)={0x40, 0xf, 0x2, 0x2}, &(0x7f00000077c0)={0x40, 0x13, 0x6, @broadcast}, &(0x7f0000007800)={0x40, 0x17, 0x6, @random="eefa7a620165"}, &(0x7f0000007840)={0x40, 0x19, 0x2, "01d3"}, &(0x7f0000007880)={0x40, 0x1a, 0x2, 0x5}, &(0x7f00000078c0)={0x40, 0x1c, 0x1, 0xff}, &(0x7f0000007900)={0x40, 0x1e, 0x1, 0xf7}, &(0x7f0000007940)={0x40, 0x21, 0x1, 0xb}}) syz_usb_disconnect(r38) r40 = syz_usb_connect$hid(0x0, 0x3f, &(0x7f0000007a40)={{0x12, 0x1, 0x110, 0x0, 0x0, 0x0, 0xff, 0x46d, 0xc08d, 0x40, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x2d, 0x1, 0x1, 0x4, 0x50, 0x10, [{{0x9, 0x4, 0x0, 0xf9, 0x2, 0x3, 0x1, 0x2, 0x5, {0x9, 0x21, 0x81, 0x8, 0x1, {0x22, 0x6e7}}, {{{0x9, 0x5, 0x81, 0x3, 0x10, 0x8, 0xc, 0x6e}}, [{{0x9, 0x5, 0x2, 0x3, 0x200, 0x8, 0x1, 0x50}}]}}}]}}]}}, &(0x7f0000007f40)={0xa, &(0x7f0000007a80)={0xa, 0x6, 0x310, 0x48, 0xa5, 0xca, 0x8, 0x10}, 0x30, &(0x7f0000007ac0)={0x5, 0xf, 0x30, 0x4, [@ss_cap={0xa, 0x10, 0x3, 0x0, 0x5, 0x0, 0x1, 0x8a}, @ssp_cap={0x10, 0x10, 0xa, 0xa, 0x1, 0x0, 0xf00f, 0x7, [0x3f00]}, @ss_cap={0xa, 0x10, 0x3, 0x0, 0x4, 0x4, 0x8, 0xfff8}, @ext_cap={0x7, 0x10, 0x2, 0x4, 0x0, 0x5, 0x8001}]}, 0xa, [{0x4, &(0x7f0000007b00)=@lang_id={0x4, 0x3, 0x437}}, {0xf2, &(0x7f0000007b40)=@string={0xf2, 0x3, "f0019969b38f6afabd6c105967f2b79c116bf52e6af549271939cbeacdab5c8503cee7d1a67a62ea491b6b2f8647133f15b8e9707e4a77577e8afd8a1284459b66c7be93c43e84efcfc2f73e93d295998cc2f495ae5b1a3d5e12ef6e64664a3b5c79528b0119f78b0a61d807232537eb3d9c09add93823e6f878bbba00898be1017faf4e5f14d387401c45645954c04f8c83f9e5f0ae9913d9ccb88e7516d80f8e21c3b610429258169248a016de144abce7905f4dd3bf2698e9f3a5febc7c10ef4ed298e5f8facbb3c9344bb3ab33568a0f64f428d60dabe2bfe795df0603cdf76f606241fdd89c8ff9fe55ee2395fd"}}, {0x4, &(0x7f0000007c40)=@lang_id={0x4, 0x3, 0x2c0a}}, {0x89, &(0x7f0000007c80)=@string={0x89, 0x3, "05b7615d7a2ba83f5916d585e5290669a0c243e1c65f43d6c7680767f0da6805ce3566413a20f4b8664b77799c5c6061d9d19075d2f89b880caa622d3aa9108e5222e55336bf7850d2f7990a1314b0be81d606f8a99a6705e0ac44872072366abaea5f97d7ca08ed1eb25b707c92991e5537f945aa401d761349b628d6c928c1cfe5b09fd13272"}}, {0xb8, &(0x7f0000007d40)=@string={0xb8, 0x3, "f04a78648bb13ad6c53b44e42ed2f24d3205bf5161674ff375ecfa9f710dd4d52e29779bc4c1d41faf1b2e02fa2cb4ca6c449681b5c88b3775f82babde2258f8a001d811f8b64ce0753b228c161809770f39160ba4ea92490a38f82c3f18b44c81a148c48bbc4f716e64a85a985f3570d6132a4ac6e97f0ae7296582879c5d4e277be3d5867dc3df2606879bd5281225a34f3feba436eec16ddfbe611574be645a71c5e8be494e27918333f2431aeff2e9fed0608428"}}, {0x4, &(0x7f0000007e00)=@lang_id={0x4, 0x3, 0x40f}}, {0x4, &(0x7f0000007e40)=@lang_id={0x4, 0x3, 0x860}}, {0x4, &(0x7f0000007e80)=@lang_id={0x4, 0x3, 0xf4ef}}, {0x4, &(0x7f0000007ec0)=@lang_id={0x4, 0x3, 0x3001}}, {0x4, &(0x7f0000007f00)=@lang_id={0x4, 0x3, 0x2009}}]}) syz_usb_ep_read(r40, 0x0, 0x1000, &(0x7f0000008000)=""/4096) syz_usb_ep_write(r37, 0x6, 0x94, &(0x7f0000009000)="57bba2f04f3945da7a47037710f6d53d8dfad8a96c57e11cf5fcfee434fce88038e1904ecc2712334118e5002b0c107c286eb90314233fd5ce1d9ea5da0076741102d88517463ff118bd931282412de1f5ea71eb2bec91b82b7f7b64f8aae1d58e32de1deeb1c8264d59d639a1945f0090275e6bdbf18e86685ccb60a5fec9c7cebac5d05b5c84e6116f89d443fad3ce74d82080") syz_usbip_server_init(0x5) csource_test.go:158: failed to build program: // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifndef __NR_clone3 #define __NR_clone3 435 #endif #ifndef __NR_io_uring_setup #define __NR_io_uring_setup 425 #endif #ifndef __NR_memfd_create #define __NR_memfd_create 319 #endif #ifndef __NR_pidfd_open #define __NR_pidfd_open 434 #endif #ifndef __NR_pkey_alloc #define __NR_pkey_alloc 330 #endif #ifndef __NR_statx #define __NR_statx 332 #endif static unsigned long long procid; static void sleep_ms(uint64_t ms) { usleep(ms * 1000); } static uint64_t current_time_ms(void) { struct timespec ts; if (clock_gettime(CLOCK_MONOTONIC, &ts)) exit(1); return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000; } static void use_temporary_dir(void) { char tmpdir_template[] = "./syzkaller.XXXXXX"; char* tmpdir = mkdtemp(tmpdir_template); if (!tmpdir) exit(1); if (chmod(tmpdir, 0777)) exit(1); if (chdir(tmpdir)) exit(1); } static void thread_start(void* (*fn)(void*), void* arg) { pthread_t th; pthread_attr_t attr; pthread_attr_init(&attr); pthread_attr_setstacksize(&attr, 128 << 10); int i = 0; for (; i < 100; i++) { if (pthread_create(&th, &attr, fn, arg) == 0) { pthread_attr_destroy(&attr); return; } if (errno == EAGAIN) { usleep(50); continue; } break; } exit(1); } #define BITMASK(bf_off,bf_len) (((1ull << (bf_len)) - 1) << (bf_off)) #define STORE_BY_BITMASK(type,htobe,addr,val,bf_off,bf_len) *(type*)(addr) = htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) | (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len)))) typedef struct { int state; } event_t; static void event_init(event_t* ev) { ev->state = 0; } static void event_reset(event_t* ev) { ev->state = 0; } static void event_set(event_t* ev) { if (ev->state) exit(1); __atomic_store_n(&ev->state, 1, __ATOMIC_RELEASE); syscall(SYS_futex, &ev->state, FUTEX_WAKE | FUTEX_PRIVATE_FLAG, 1000000); } static void event_wait(event_t* ev) { while (!__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE)) syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, 0); } static int event_isset(event_t* ev) { return __atomic_load_n(&ev->state, __ATOMIC_ACQUIRE); } static int event_timedwait(event_t* ev, uint64_t timeout) { uint64_t start = current_time_ms(); uint64_t now = start; for (;;) { uint64_t remain = timeout - (now - start); struct timespec ts; ts.tv_sec = remain / 1000; ts.tv_nsec = (remain % 1000) * 1000 * 1000; syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, &ts); if (__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE)) return 1; now = current_time_ms(); if (now - start > timeout) return 0; } } static bool write_file(const char* file, const char* what, ...) { char buf[1024]; va_list args; va_start(args, what); vsnprintf(buf, sizeof(buf), what, args); va_end(args); buf[sizeof(buf) - 1] = 0; int len = strlen(buf); int fd = open(file, O_WRONLY | O_CLOEXEC); if (fd == -1) return false; if (write(fd, buf, len) != len) { int err = errno; close(fd); errno = err; return false; } close(fd); return true; } struct nlmsg { char* pos; int nesting; struct nlattr* nested[8]; char buf[4096]; }; static void netlink_init(struct nlmsg* nlmsg, int typ, int flags, const void* data, int size) { memset(nlmsg, 0, sizeof(*nlmsg)); struct nlmsghdr* hdr = (struct nlmsghdr*)nlmsg->buf; hdr->nlmsg_type = typ; hdr->nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK | flags; memcpy(hdr + 1, data, size); nlmsg->pos = (char*)(hdr + 1) + NLMSG_ALIGN(size); } static void netlink_attr(struct nlmsg* nlmsg, int typ, const void* data, int size) { struct nlattr* attr = (struct nlattr*)nlmsg->pos; attr->nla_len = sizeof(*attr) + size; attr->nla_type = typ; if (size > 0) memcpy(attr + 1, data, size); nlmsg->pos += NLMSG_ALIGN(attr->nla_len); } static int netlink_send_ext(struct nlmsg* nlmsg, int sock, uint16_t reply_type, int* reply_len, bool dofail) { if (nlmsg->pos > nlmsg->buf + sizeof(nlmsg->buf) || nlmsg->nesting) exit(1); struct nlmsghdr* hdr = (struct nlmsghdr*)nlmsg->buf; hdr->nlmsg_len = nlmsg->pos - nlmsg->buf; struct sockaddr_nl addr; memset(&addr, 0, sizeof(addr)); addr.nl_family = AF_NETLINK; ssize_t n = sendto(sock, nlmsg->buf, hdr->nlmsg_len, 0, (struct sockaddr*)&addr, sizeof(addr)); if (n != (ssize_t)hdr->nlmsg_len) { if (dofail) exit(1); return -1; } n = recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0); if (reply_len) *reply_len = 0; if (n < 0) { if (dofail) exit(1); return -1; } if (n < (ssize_t)sizeof(struct nlmsghdr)) { errno = EINVAL; if (dofail) exit(1); return -1; } if (hdr->nlmsg_type == NLMSG_DONE) return 0; if (reply_len && hdr->nlmsg_type == reply_type) { *reply_len = n; return 0; } if (n < (ssize_t)(sizeof(struct nlmsghdr) + sizeof(struct nlmsgerr))) { errno = EINVAL; if (dofail) exit(1); return -1; } if (hdr->nlmsg_type != NLMSG_ERROR) { errno = EINVAL; if (dofail) exit(1); return -1; } errno = -((struct nlmsgerr*)(hdr + 1))->error; return -errno; } static int netlink_query_family_id(struct nlmsg* nlmsg, int sock, const char* family_name, bool dofail) { struct genlmsghdr genlhdr; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = CTRL_CMD_GETFAMILY; netlink_init(nlmsg, GENL_ID_CTRL, 0, &genlhdr, sizeof(genlhdr)); netlink_attr(nlmsg, CTRL_ATTR_FAMILY_NAME, family_name, strnlen(family_name, GENL_NAMSIZ - 1) + 1); int n = 0; int err = netlink_send_ext(nlmsg, sock, GENL_ID_CTRL, &n, dofail); if (err < 0) { return -1; } uint16_t id = 0; struct nlattr* attr = (struct nlattr*)(nlmsg->buf + NLMSG_HDRLEN + NLMSG_ALIGN(sizeof(genlhdr))); for (; (char*)attr < nlmsg->buf + n; attr = (struct nlattr*)((char*)attr + NLMSG_ALIGN(attr->nla_len))) { if (attr->nla_type == CTRL_ATTR_FAMILY_ID) { id = *(uint16_t*)(attr + 1); break; } } if (!id) { errno = EINVAL; return -1; } recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0); return id; } const int kInitNetNsFd = 201; #define WIFI_INITIAL_DEVICE_COUNT 2 #define WIFI_MAC_BASE { 0x08, 0x02, 0x11, 0x00, 0x00, 0x00} #define WIFI_IBSS_BSSID { 0x50, 0x50, 0x50, 0x50, 0x50, 0x50} #define WIFI_IBSS_SSID { 0x10, 0x10, 0x10, 0x10, 0x10, 0x10} #define WIFI_DEFAULT_FREQUENCY 2412 #define WIFI_DEFAULT_SIGNAL 0 #define WIFI_DEFAULT_RX_RATE 1 #define HWSIM_CMD_REGISTER 1 #define HWSIM_CMD_FRAME 2 #define HWSIM_CMD_NEW_RADIO 4 #define HWSIM_ATTR_SUPPORT_P2P_DEVICE 14 #define HWSIM_ATTR_PERM_ADDR 22 #define IF_OPER_UP 6 struct join_ibss_props { int wiphy_freq; bool wiphy_freq_fixed; uint8_t* mac; uint8_t* ssid; int ssid_len; }; static int set_interface_state(const char* interface_name, int on) { struct ifreq ifr; int sock = socket(AF_INET, SOCK_DGRAM, 0); if (sock < 0) { return -1; } memset(&ifr, 0, sizeof(ifr)); strcpy(ifr.ifr_name, interface_name); int ret = ioctl(sock, SIOCGIFFLAGS, &ifr); if (ret < 0) { close(sock); return -1; } if (on) ifr.ifr_flags |= IFF_UP; else ifr.ifr_flags &= ~IFF_UP; ret = ioctl(sock, SIOCSIFFLAGS, &ifr); close(sock); if (ret < 0) { return -1; } return 0; } static int nl80211_set_interface(struct nlmsg* nlmsg, int sock, int nl80211_family, uint32_t ifindex, uint32_t iftype, bool dofail) { struct genlmsghdr genlhdr; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = NL80211_CMD_SET_INTERFACE; netlink_init(nlmsg, nl80211_family, 0, &genlhdr, sizeof(genlhdr)); netlink_attr(nlmsg, NL80211_ATTR_IFINDEX, &ifindex, sizeof(ifindex)); netlink_attr(nlmsg, NL80211_ATTR_IFTYPE, &iftype, sizeof(iftype)); int err = netlink_send_ext(nlmsg, sock, 0, NULL, dofail); if (err < 0) { } return err; } static int nl80211_join_ibss(struct nlmsg* nlmsg, int sock, int nl80211_family, uint32_t ifindex, struct join_ibss_props* props, bool dofail) { struct genlmsghdr genlhdr; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = NL80211_CMD_JOIN_IBSS; netlink_init(nlmsg, nl80211_family, 0, &genlhdr, sizeof(genlhdr)); netlink_attr(nlmsg, NL80211_ATTR_IFINDEX, &ifindex, sizeof(ifindex)); netlink_attr(nlmsg, NL80211_ATTR_SSID, props->ssid, props->ssid_len); netlink_attr(nlmsg, NL80211_ATTR_WIPHY_FREQ, &(props->wiphy_freq), sizeof(props->wiphy_freq)); if (props->mac) netlink_attr(nlmsg, NL80211_ATTR_MAC, props->mac, ETH_ALEN); if (props->wiphy_freq_fixed) netlink_attr(nlmsg, NL80211_ATTR_FREQ_FIXED, NULL, 0); int err = netlink_send_ext(nlmsg, sock, 0, NULL, dofail); if (err < 0) { } return err; } static int get_ifla_operstate(struct nlmsg* nlmsg, int ifindex, bool dofail) { struct ifinfomsg info; memset(&info, 0, sizeof(info)); info.ifi_family = AF_UNSPEC; info.ifi_index = ifindex; int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE); if (sock == -1) { return -1; } netlink_init(nlmsg, RTM_GETLINK, 0, &info, sizeof(info)); int n; int err = netlink_send_ext(nlmsg, sock, RTM_NEWLINK, &n, dofail); close(sock); if (err) { return -1; } struct rtattr* attr = IFLA_RTA(NLMSG_DATA(nlmsg->buf)); for (; RTA_OK(attr, n); attr = RTA_NEXT(attr, n)) { if (attr->rta_type == IFLA_OPERSTATE) return *((int32_t*)RTA_DATA(attr)); } return -1; } static int await_ifla_operstate(struct nlmsg* nlmsg, char* interface, int operstate, bool dofail) { int ifindex = if_nametoindex(interface); while (true) { usleep(1000); int ret = get_ifla_operstate(nlmsg, ifindex, dofail); if (ret < 0) return ret; if (ret == operstate) return 0; } return 0; } static int nl80211_setup_ibss_interface(struct nlmsg* nlmsg, int sock, int nl80211_family_id, char* interface, struct join_ibss_props* ibss_props, bool dofail) { int ifindex = if_nametoindex(interface); if (ifindex == 0) { return -1; } int ret = nl80211_set_interface(nlmsg, sock, nl80211_family_id, ifindex, NL80211_IFTYPE_ADHOC, dofail); if (ret < 0) { return -1; } ret = set_interface_state(interface, 1); if (ret < 0) { return -1; } ret = nl80211_join_ibss(nlmsg, sock, nl80211_family_id, ifindex, ibss_props, dofail); if (ret < 0) { return -1; } return 0; } #define SIZEOF_IO_URING_SQE 64 #define SIZEOF_IO_URING_CQE 16 #define SQ_HEAD_OFFSET 0 #define SQ_TAIL_OFFSET 64 #define SQ_RING_MASK_OFFSET 256 #define SQ_RING_ENTRIES_OFFSET 264 #define SQ_FLAGS_OFFSET 276 #define SQ_DROPPED_OFFSET 272 #define CQ_HEAD_OFFSET 128 #define CQ_TAIL_OFFSET 192 #define CQ_RING_MASK_OFFSET 260 #define CQ_RING_ENTRIES_OFFSET 268 #define CQ_RING_OVERFLOW_OFFSET 284 #define CQ_FLAGS_OFFSET 280 #define CQ_CQES_OFFSET 320 struct io_uring_cqe { uint64_t user_data; uint32_t res; uint32_t flags; }; static long syz_io_uring_complete(volatile long a0) { char* ring_ptr = (char*)a0; uint32_t cq_ring_mask = *(uint32_t*)(ring_ptr + CQ_RING_MASK_OFFSET); uint32_t* cq_head_ptr = (uint32_t*)(ring_ptr + CQ_HEAD_OFFSET); uint32_t cq_head = *cq_head_ptr & cq_ring_mask; uint32_t cq_head_next = *cq_head_ptr + 1; char* cqe_src = ring_ptr + CQ_CQES_OFFSET + cq_head * SIZEOF_IO_URING_CQE; struct io_uring_cqe cqe; memcpy(&cqe, cqe_src, sizeof(cqe)); __atomic_store_n(cq_head_ptr, cq_head_next, __ATOMIC_RELEASE); return (cqe.user_data == 0x12345 || cqe.user_data == 0x23456) ? (long)cqe.res : (long)-1; } struct io_sqring_offsets { uint32_t head; uint32_t tail; uint32_t ring_mask; uint32_t ring_entries; uint32_t flags; uint32_t dropped; uint32_t array; uint32_t resv1; uint64_t resv2; }; struct io_cqring_offsets { uint32_t head; uint32_t tail; uint32_t ring_mask; uint32_t ring_entries; uint32_t overflow; uint32_t cqes; uint64_t resv[2]; }; struct io_uring_params { uint32_t sq_entries; uint32_t cq_entries; uint32_t flags; uint32_t sq_thread_cpu; uint32_t sq_thread_idle; uint32_t features; uint32_t resv[4]; struct io_sqring_offsets sq_off; struct io_cqring_offsets cq_off; }; #define IORING_OFF_SQ_RING 0 #define IORING_OFF_SQES 0x10000000ULL #define IORING_SETUP_SQE128 (1U << 10) #define IORING_SETUP_CQE32 (1U << 11) static long syz_io_uring_setup(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { uint32_t entries = (uint32_t)a0; struct io_uring_params* setup_params = (struct io_uring_params*)a1; void** ring_ptr_out = (void**)a2; void** sqes_ptr_out = (void**)a3; setup_params->flags &= ~(IORING_SETUP_CQE32 | IORING_SETUP_SQE128); uint32_t fd_io_uring = syscall(__NR_io_uring_setup, entries, setup_params); uint32_t sq_ring_sz = setup_params->sq_off.array + setup_params->sq_entries * sizeof(uint32_t); uint32_t cq_ring_sz = setup_params->cq_off.cqes + setup_params->cq_entries * SIZEOF_IO_URING_CQE; uint32_t ring_sz = sq_ring_sz > cq_ring_sz ? sq_ring_sz : cq_ring_sz; *ring_ptr_out = mmap(0, ring_sz, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_POPULATE, fd_io_uring, IORING_OFF_SQ_RING); uint32_t sqes_sz = setup_params->sq_entries * SIZEOF_IO_URING_SQE; *sqes_ptr_out = mmap(0, sqes_sz, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_POPULATE, fd_io_uring, IORING_OFF_SQES); uint32_t* array = (uint32_t*)((uintptr_t)*ring_ptr_out + setup_params->sq_off.array); for (uint32_t index = 0; index < entries; index++) array[index] = index; return fd_io_uring; } static long syz_io_uring_submit(volatile long a0, volatile long a1, volatile long a2) { char* ring_ptr = (char*)a0; char* sqes_ptr = (char*)a1; char* sqe = (char*)a2; uint32_t sq_ring_mask = *(uint32_t*)(ring_ptr + SQ_RING_MASK_OFFSET); uint32_t* sq_tail_ptr = (uint32_t*)(ring_ptr + SQ_TAIL_OFFSET); uint32_t sq_tail = *sq_tail_ptr & sq_ring_mask; char* sqe_dest = sqes_ptr + sq_tail * SIZEOF_IO_URING_SQE; memcpy(sqe_dest, sqe, SIZEOF_IO_URING_SQE); uint32_t sq_tail_next = *sq_tail_ptr + 1; __atomic_store_n(sq_tail_ptr, sq_tail_next, __ATOMIC_RELEASE); return 0; } #define VHCI_HC_PORTS 8 #define VHCI_PORTS (VHCI_HC_PORTS * 2) static long syz_usbip_server_init(volatile long a0) { static int port_alloc[2]; int speed = (int)a0; bool usb3 = (speed == USB_SPEED_SUPER); int socket_pair[2]; if (socketpair(AF_UNIX, SOCK_STREAM, 0, socket_pair)) { return -1; } int client_fd = socket_pair[0]; int server_fd = socket_pair[1]; int available_port_num = __atomic_fetch_add(&port_alloc[usb3], 1, __ATOMIC_RELAXED); if (available_port_num > VHCI_HC_PORTS) { return -1; } int port_num = procid * VHCI_PORTS + usb3 * VHCI_HC_PORTS + available_port_num; char buffer[100]; sprintf(buffer, "%d %d %s %d", port_num, client_fd, "0", speed); write_file("/sys/devices/platform/vhci_hcd.0/attach", buffer); return server_fd; } #define BTF_MAGIC 0xeB9F struct btf_header { __u16 magic; __u8 version; __u8 flags; __u32 hdr_len; __u32 type_off; __u32 type_len; __u32 str_off; __u32 str_len; }; #define BTF_INFO_KIND(info) (((info) >> 24) & 0x0f) #define BTF_INFO_VLEN(info) ((info) & 0xffff) #define BTF_KIND_INT 1 #define BTF_KIND_ARRAY 3 #define BTF_KIND_STRUCT 4 #define BTF_KIND_UNION 5 #define BTF_KIND_ENUM 6 #define BTF_KIND_FUNC_PROTO 13 #define BTF_KIND_VAR 14 #define BTF_KIND_DATASEC 15 struct btf_type { __u32 name_off; __u32 info; union { __u32 size; __u32 type; }; }; struct btf_enum { __u32 name_off; __s32 val; }; struct btf_array { __u32 type; __u32 index_type; __u32 nelems; }; struct btf_member { __u32 name_off; __u32 type; __u32 offset; }; struct btf_param { __u32 name_off; __u32 type; }; struct btf_var { __u32 linkage; }; struct btf_var_secinfo { __u32 type; __u32 offset; __u32 size; }; #define VMLINUX_MAX_SUPPORT_SIZE (10 * 1024 * 1024) static char* read_btf_vmlinux() { static bool is_read = false; static char buf[VMLINUX_MAX_SUPPORT_SIZE]; if (is_read) return buf; int fd = open("/sys/kernel/btf/vmlinux", O_RDONLY); if (fd < 0) return NULL; unsigned long bytes_read = 0; for (;;) { ssize_t ret = read(fd, buf + bytes_read, VMLINUX_MAX_SUPPORT_SIZE - bytes_read); if (ret < 0 || bytes_read + ret == VMLINUX_MAX_SUPPORT_SIZE) return NULL; if (ret == 0) break; bytes_read += ret; } is_read = true; return buf; } static long syz_btf_id_by_name(volatile long a0) { char* target = (char*)a0; char* vmlinux = read_btf_vmlinux(); if (vmlinux == NULL) return -1; struct btf_header* btf_header = (struct btf_header*)vmlinux; if (btf_header->magic != BTF_MAGIC) return -1; char* btf_type_sec = vmlinux + btf_header->hdr_len + btf_header->type_off; char* btf_str_sec = vmlinux + btf_header->hdr_len + btf_header->str_off; unsigned int bytes_parsed = 0; long idx = 1; while (bytes_parsed < btf_header->type_len) { struct btf_type* btf_type = (struct btf_type*)(btf_type_sec + bytes_parsed); uint32_t kind = BTF_INFO_KIND(btf_type->info); uint32_t vlen = BTF_INFO_VLEN(btf_type->info); char* name = btf_str_sec + btf_type->name_off; if (strcmp(name, target) == 0) return idx; size_t skip; switch (kind) { case BTF_KIND_INT: skip = sizeof(uint32_t); break; case BTF_KIND_ENUM: skip = sizeof(struct btf_enum) * vlen; break; case BTF_KIND_ARRAY: skip = sizeof(struct btf_array); break; case BTF_KIND_STRUCT: case BTF_KIND_UNION: skip = sizeof(struct btf_member) * vlen; break; case BTF_KIND_FUNC_PROTO: skip = sizeof(struct btf_param) * vlen; break; case BTF_KIND_VAR: skip = sizeof(struct btf_var); break; case BTF_KIND_DATASEC: skip = sizeof(struct btf_var_secinfo) * vlen; break; default: skip = 0; } bytes_parsed += sizeof(struct btf_type) + skip; idx++; } return -1; } static long syz_memcpy_off(volatile long a0, volatile long a1, volatile long a2, volatile long a3, volatile long a4) { char* dest = (char*)a0; uint32_t dest_off = (uint32_t)a1; char* src = (char*)a2; uint32_t src_off = (uint32_t)a3; size_t n = (size_t)a4; return (long)memcpy(dest + dest_off, src + src_off, n); } static long syz_create_resource(volatile long val) { return val; } #define MAX_FDS 30 #define USB_MAX_IFACE_NUM 4 #define USB_MAX_EP_NUM 32 #define USB_MAX_FDS 6 struct usb_endpoint_index { struct usb_endpoint_descriptor desc; int handle; }; struct usb_iface_index { struct usb_interface_descriptor* iface; uint8_t bInterfaceNumber; uint8_t bAlternateSetting; uint8_t bInterfaceClass; struct usb_endpoint_index eps[USB_MAX_EP_NUM]; int eps_num; }; struct usb_device_index { struct usb_device_descriptor* dev; struct usb_config_descriptor* config; uint8_t bDeviceClass; uint8_t bMaxPower; int config_length; struct usb_iface_index ifaces[USB_MAX_IFACE_NUM]; int ifaces_num; int iface_cur; }; struct usb_info { int fd; struct usb_device_index index; }; static struct usb_info usb_devices[USB_MAX_FDS]; static struct usb_device_index* lookup_usb_index(int fd) { for (int i = 0; i < USB_MAX_FDS; i++) { if (__atomic_load_n(&usb_devices[i].fd, __ATOMIC_ACQUIRE) == fd) return &usb_devices[i].index; } return NULL; } static int usb_devices_num; static bool parse_usb_descriptor(const char* buffer, size_t length, struct usb_device_index* index) { if (length < sizeof(*index->dev) + sizeof(*index->config)) return false; memset(index, 0, sizeof(*index)); index->dev = (struct usb_device_descriptor*)buffer; index->config = (struct usb_config_descriptor*)(buffer + sizeof(*index->dev)); index->bDeviceClass = index->dev->bDeviceClass; index->bMaxPower = index->config->bMaxPower; index->config_length = length - sizeof(*index->dev); index->iface_cur = -1; size_t offset = 0; while (true) { if (offset + 1 >= length) break; uint8_t desc_length = buffer[offset]; uint8_t desc_type = buffer[offset + 1]; if (desc_length <= 2) break; if (offset + desc_length > length) break; if (desc_type == USB_DT_INTERFACE && index->ifaces_num < USB_MAX_IFACE_NUM) { struct usb_interface_descriptor* iface = (struct usb_interface_descriptor*)(buffer + offset); index->ifaces[index->ifaces_num].iface = iface; index->ifaces[index->ifaces_num].bInterfaceNumber = iface->bInterfaceNumber; index->ifaces[index->ifaces_num].bAlternateSetting = iface->bAlternateSetting; index->ifaces[index->ifaces_num].bInterfaceClass = iface->bInterfaceClass; index->ifaces_num++; } if (desc_type == USB_DT_ENDPOINT && index->ifaces_num > 0) { struct usb_iface_index* iface = &index->ifaces[index->ifaces_num - 1]; if (iface->eps_num < USB_MAX_EP_NUM) { memcpy(&iface->eps[iface->eps_num].desc, buffer + offset, sizeof(iface->eps[iface->eps_num].desc)); iface->eps_num++; } } offset += desc_length; } return true; } static struct usb_device_index* add_usb_index(int fd, const char* dev, size_t dev_len) { int i = __atomic_fetch_add(&usb_devices_num, 1, __ATOMIC_RELAXED); if (i >= USB_MAX_FDS) return NULL; if (!parse_usb_descriptor(dev, dev_len, &usb_devices[i].index)) return NULL; __atomic_store_n(&usb_devices[i].fd, fd, __ATOMIC_RELEASE); return &usb_devices[i].index; } struct vusb_connect_string_descriptor { uint32_t len; char* str; } __attribute__((packed)); struct vusb_connect_descriptors { uint32_t qual_len; char* qual; uint32_t bos_len; char* bos; uint32_t strs_len; struct vusb_connect_string_descriptor strs[0]; } __attribute__((packed)); static const char default_string[] = { 8, USB_DT_STRING, 's', 0, 'y', 0, 'z', 0 }; static const char default_lang_id[] = { 4, USB_DT_STRING, 0x09, 0x04 }; static bool lookup_connect_response_in(int fd, const struct vusb_connect_descriptors* descs, const struct usb_ctrlrequest* ctrl, struct usb_qualifier_descriptor* qual, char** response_data, uint32_t* response_length) { struct usb_device_index* index = lookup_usb_index(fd); uint8_t str_idx; if (!index) return false; switch (ctrl->bRequestType & USB_TYPE_MASK) { case USB_TYPE_STANDARD: switch (ctrl->bRequest) { case USB_REQ_GET_DESCRIPTOR: switch (ctrl->wValue >> 8) { case USB_DT_DEVICE: *response_data = (char*)index->dev; *response_length = sizeof(*index->dev); return true; case USB_DT_CONFIG: *response_data = (char*)index->config; *response_length = index->config_length; return true; case USB_DT_STRING: str_idx = (uint8_t)ctrl->wValue; if (descs && str_idx < descs->strs_len) { *response_data = descs->strs[str_idx].str; *response_length = descs->strs[str_idx].len; return true; } if (str_idx == 0) { *response_data = (char*)&default_lang_id[0]; *response_length = default_lang_id[0]; return true; } *response_data = (char*)&default_string[0]; *response_length = default_string[0]; return true; case USB_DT_BOS: *response_data = descs->bos; *response_length = descs->bos_len; return true; case USB_DT_DEVICE_QUALIFIER: if (!descs->qual) { qual->bLength = sizeof(*qual); qual->bDescriptorType = USB_DT_DEVICE_QUALIFIER; qual->bcdUSB = index->dev->bcdUSB; qual->bDeviceClass = index->dev->bDeviceClass; qual->bDeviceSubClass = index->dev->bDeviceSubClass; qual->bDeviceProtocol = index->dev->bDeviceProtocol; qual->bMaxPacketSize0 = index->dev->bMaxPacketSize0; qual->bNumConfigurations = index->dev->bNumConfigurations; qual->bRESERVED = 0; *response_data = (char*)qual; *response_length = sizeof(*qual); return true; } *response_data = descs->qual; *response_length = descs->qual_len; return true; default: break; } break; default: break; } break; default: break; } return false; } typedef bool (*lookup_connect_out_response_t)(int fd, const struct vusb_connect_descriptors* descs, const struct usb_ctrlrequest* ctrl, bool* done); static bool lookup_connect_response_out_generic(int fd, const struct vusb_connect_descriptors* descs, const struct usb_ctrlrequest* ctrl, bool* done) { switch (ctrl->bRequestType & USB_TYPE_MASK) { case USB_TYPE_STANDARD: switch (ctrl->bRequest) { case USB_REQ_SET_CONFIGURATION: *done = true; return true; default: break; } break; } return false; } #define ATH9K_FIRMWARE_DOWNLOAD 0x30 #define ATH9K_FIRMWARE_DOWNLOAD_COMP 0x31 static bool lookup_connect_response_out_ath9k(int fd, const struct vusb_connect_descriptors* descs, const struct usb_ctrlrequest* ctrl, bool* done) { switch (ctrl->bRequestType & USB_TYPE_MASK) { case USB_TYPE_STANDARD: switch (ctrl->bRequest) { case USB_REQ_SET_CONFIGURATION: return true; default: break; } break; case USB_TYPE_VENDOR: switch (ctrl->bRequest) { case ATH9K_FIRMWARE_DOWNLOAD: return true; case ATH9K_FIRMWARE_DOWNLOAD_COMP: *done = true; return true; default: break; } break; } return false; } struct vusb_descriptor { uint8_t req_type; uint8_t desc_type; uint32_t len; char data[0]; } __attribute__((packed)); struct vusb_descriptors { uint32_t len; struct vusb_descriptor* generic; struct vusb_descriptor* descs[0]; } __attribute__((packed)); struct vusb_response { uint8_t type; uint8_t req; uint32_t len; char data[0]; } __attribute__((packed)); struct vusb_responses { uint32_t len; struct vusb_response* generic; struct vusb_response* resps[0]; } __attribute__((packed)); static bool lookup_control_response(const struct vusb_descriptors* descs, const struct vusb_responses* resps, struct usb_ctrlrequest* ctrl, char** response_data, uint32_t* response_length) { int descs_num = 0; int resps_num = 0; if (descs) descs_num = (descs->len - offsetof(struct vusb_descriptors, descs)) / sizeof(descs->descs[0]); if (resps) resps_num = (resps->len - offsetof(struct vusb_responses, resps)) / sizeof(resps->resps[0]); uint8_t req = ctrl->bRequest; uint8_t req_type = ctrl->bRequestType & USB_TYPE_MASK; uint8_t desc_type = ctrl->wValue >> 8; if (req == USB_REQ_GET_DESCRIPTOR) { int i; for (i = 0; i < descs_num; i++) { struct vusb_descriptor* desc = descs->descs[i]; if (!desc) continue; if (desc->req_type == req_type && desc->desc_type == desc_type) { *response_length = desc->len; if (*response_length != 0) *response_data = &desc->data[0]; else *response_data = NULL; return true; } } if (descs && descs->generic) { *response_data = &descs->generic->data[0]; *response_length = descs->generic->len; return true; } } else { int i; for (i = 0; i < resps_num; i++) { struct vusb_response* resp = resps->resps[i]; if (!resp) continue; if (resp->type == req_type && resp->req == req) { *response_length = resp->len; if (*response_length != 0) *response_data = &resp->data[0]; else *response_data = NULL; return true; } } if (resps && resps->generic) { *response_data = &resps->generic->data[0]; *response_length = resps->generic->len; return true; } } return false; } #define UDC_NAME_LENGTH_MAX 128 struct usb_raw_init { __u8 driver_name[UDC_NAME_LENGTH_MAX]; __u8 device_name[UDC_NAME_LENGTH_MAX]; __u8 speed; }; enum usb_raw_event_type { USB_RAW_EVENT_INVALID = 0, USB_RAW_EVENT_CONNECT = 1, USB_RAW_EVENT_CONTROL = 2, }; struct usb_raw_event { __u32 type; __u32 length; __u8 data[0]; }; struct usb_raw_ep_io { __u16 ep; __u16 flags; __u32 length; __u8 data[0]; }; #define USB_RAW_EPS_NUM_MAX 30 #define USB_RAW_EP_NAME_MAX 16 #define USB_RAW_EP_ADDR_ANY 0xff struct usb_raw_ep_caps { __u32 type_control : 1; __u32 type_iso : 1; __u32 type_bulk : 1; __u32 type_int : 1; __u32 dir_in : 1; __u32 dir_out : 1; }; struct usb_raw_ep_limits { __u16 maxpacket_limit; __u16 max_streams; __u32 reserved; }; struct usb_raw_ep_info { __u8 name[USB_RAW_EP_NAME_MAX]; __u32 addr; struct usb_raw_ep_caps caps; struct usb_raw_ep_limits limits; }; struct usb_raw_eps_info { struct usb_raw_ep_info eps[USB_RAW_EPS_NUM_MAX]; }; #define USB_RAW_IOCTL_INIT _IOW('U', 0, struct usb_raw_init) #define USB_RAW_IOCTL_RUN _IO('U', 1) #define USB_RAW_IOCTL_EVENT_FETCH _IOR('U', 2, struct usb_raw_event) #define USB_RAW_IOCTL_EP0_WRITE _IOW('U', 3, struct usb_raw_ep_io) #define USB_RAW_IOCTL_EP0_READ _IOWR('U', 4, struct usb_raw_ep_io) #define USB_RAW_IOCTL_EP_ENABLE _IOW('U', 5, struct usb_endpoint_descriptor) #define USB_RAW_IOCTL_EP_DISABLE _IOW('U', 6, __u32) #define USB_RAW_IOCTL_EP_WRITE _IOW('U', 7, struct usb_raw_ep_io) #define USB_RAW_IOCTL_EP_READ _IOWR('U', 8, struct usb_raw_ep_io) #define USB_RAW_IOCTL_CONFIGURE _IO('U', 9) #define USB_RAW_IOCTL_VBUS_DRAW _IOW('U', 10, __u32) #define USB_RAW_IOCTL_EPS_INFO _IOR('U', 11, struct usb_raw_eps_info) #define USB_RAW_IOCTL_EP0_STALL _IO('U', 12) #define USB_RAW_IOCTL_EP_SET_HALT _IOW('U', 13, __u32) #define USB_RAW_IOCTL_EP_CLEAR_HALT _IOW('U', 14, __u32) #define USB_RAW_IOCTL_EP_SET_WEDGE _IOW('U', 15, __u32) static int usb_raw_open() { return open("/dev/raw-gadget", O_RDWR); } static int usb_raw_init(int fd, uint32_t speed, const char* driver, const char* device) { struct usb_raw_init arg; strncpy((char*)&arg.driver_name[0], driver, sizeof(arg.driver_name)); strncpy((char*)&arg.device_name[0], device, sizeof(arg.device_name)); arg.speed = speed; return ioctl(fd, USB_RAW_IOCTL_INIT, &arg); } static int usb_raw_run(int fd) { return ioctl(fd, USB_RAW_IOCTL_RUN, 0); } static int usb_raw_ep_write(int fd, struct usb_raw_ep_io* io) { return ioctl(fd, USB_RAW_IOCTL_EP_WRITE, io); } static int usb_raw_ep_read(int fd, struct usb_raw_ep_io* io) { return ioctl(fd, USB_RAW_IOCTL_EP_READ, io); } static int usb_raw_configure(int fd) { return ioctl(fd, USB_RAW_IOCTL_CONFIGURE, 0); } static int usb_raw_vbus_draw(int fd, uint32_t power) { return ioctl(fd, USB_RAW_IOCTL_VBUS_DRAW, power); } static int usb_raw_ep0_write(int fd, struct usb_raw_ep_io* io) { return ioctl(fd, USB_RAW_IOCTL_EP0_WRITE, io); } static int usb_raw_ep0_read(int fd, struct usb_raw_ep_io* io) { return ioctl(fd, USB_RAW_IOCTL_EP0_READ, io); } static int usb_raw_event_fetch(int fd, struct usb_raw_event* event) { return ioctl(fd, USB_RAW_IOCTL_EVENT_FETCH, event); } static int usb_raw_ep_enable(int fd, struct usb_endpoint_descriptor* desc) { return ioctl(fd, USB_RAW_IOCTL_EP_ENABLE, desc); } static int usb_raw_ep_disable(int fd, int ep) { return ioctl(fd, USB_RAW_IOCTL_EP_DISABLE, ep); } static int usb_raw_ep0_stall(int fd) { return ioctl(fd, USB_RAW_IOCTL_EP0_STALL, 0); } static int lookup_interface(int fd, uint8_t bInterfaceNumber, uint8_t bAlternateSetting) { struct usb_device_index* index = lookup_usb_index(fd); if (!index) return -1; for (int i = 0; i < index->ifaces_num; i++) { if (index->ifaces[i].bInterfaceNumber == bInterfaceNumber && index->ifaces[i].bAlternateSetting == bAlternateSetting) return i; } return -1; } static int lookup_endpoint(int fd, uint8_t bEndpointAddress) { struct usb_device_index* index = lookup_usb_index(fd); if (!index) return -1; if (index->iface_cur < 0) return -1; for (int ep = 0; ep < index->ifaces[index->iface_cur].eps_num; ep++) if (index->ifaces[index->iface_cur].eps[ep].desc.bEndpointAddress == bEndpointAddress) return index->ifaces[index->iface_cur].eps[ep].handle; return -1; } #define USB_MAX_PACKET_SIZE 4096 struct usb_raw_control_event { struct usb_raw_event inner; struct usb_ctrlrequest ctrl; char data[USB_MAX_PACKET_SIZE]; }; struct usb_raw_ep_io_data { struct usb_raw_ep_io inner; char data[USB_MAX_PACKET_SIZE]; }; static void set_interface(int fd, int n) { struct usb_device_index* index = lookup_usb_index(fd); if (!index) return; if (index->iface_cur >= 0 && index->iface_cur < index->ifaces_num) { for (int ep = 0; ep < index->ifaces[index->iface_cur].eps_num; ep++) { int rv = usb_raw_ep_disable(fd, index->ifaces[index->iface_cur].eps[ep].handle); if (rv < 0) { } else { } } } if (n >= 0 && n < index->ifaces_num) { for (int ep = 0; ep < index->ifaces[n].eps_num; ep++) { int rv = usb_raw_ep_enable(fd, &index->ifaces[n].eps[ep].desc); if (rv < 0) { } else { index->ifaces[n].eps[ep].handle = rv; } } index->iface_cur = n; } } static int configure_device(int fd) { struct usb_device_index* index = lookup_usb_index(fd); if (!index) return -1; int rv = usb_raw_vbus_draw(fd, index->bMaxPower); if (rv < 0) { return rv; } rv = usb_raw_configure(fd); if (rv < 0) { return rv; } set_interface(fd, 0); return 0; } static volatile long syz_usb_connect_impl(uint64_t speed, uint64_t dev_len, const char* dev, const struct vusb_connect_descriptors* descs, lookup_connect_out_response_t lookup_connect_response_out) { if (!dev) { return -1; } int fd = usb_raw_open(); if (fd < 0) { return fd; } if (fd >= MAX_FDS) { close(fd); return -1; } struct usb_device_index* index = add_usb_index(fd, dev, dev_len); if (!index) { return -1; } char device[32]; sprintf(&device[0], "dummy_udc.%llu", procid); int rv = usb_raw_init(fd, speed, "dummy_udc", &device[0]); if (rv < 0) { return rv; } rv = usb_raw_run(fd); if (rv < 0) { return rv; } bool done = false; while (!done) { struct usb_raw_control_event event; event.inner.type = 0; event.inner.length = sizeof(event.ctrl); rv = usb_raw_event_fetch(fd, (struct usb_raw_event*)&event); if (rv < 0) { return rv; } if (event.inner.type != USB_RAW_EVENT_CONTROL) continue; char* response_data = NULL; uint32_t response_length = 0; struct usb_qualifier_descriptor qual; if (event.ctrl.bRequestType & USB_DIR_IN) { if (!lookup_connect_response_in(fd, descs, &event.ctrl, &qual, &response_data, &response_length)) { usb_raw_ep0_stall(fd); continue; } } else { if (!lookup_connect_response_out(fd, descs, &event.ctrl, &done)) { usb_raw_ep0_stall(fd); continue; } response_data = NULL; response_length = event.ctrl.wLength; } if ((event.ctrl.bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD && event.ctrl.bRequest == USB_REQ_SET_CONFIGURATION) { rv = configure_device(fd); if (rv < 0) { return rv; } } struct usb_raw_ep_io_data response; response.inner.ep = 0; response.inner.flags = 0; if (response_length > sizeof(response.data)) response_length = 0; if (event.ctrl.wLength < response_length) response_length = event.ctrl.wLength; response.inner.length = response_length; if (response_data) memcpy(&response.data[0], response_data, response_length); else memset(&response.data[0], 0, response_length); if (event.ctrl.bRequestType & USB_DIR_IN) { rv = usb_raw_ep0_write(fd, (struct usb_raw_ep_io*)&response); } else { rv = usb_raw_ep0_read(fd, (struct usb_raw_ep_io*)&response); } if (rv < 0) { return rv; } } sleep_ms(200); return fd; } static volatile long syz_usb_connect(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { uint64_t speed = a0; uint64_t dev_len = a1; const char* dev = (const char*)a2; const struct vusb_connect_descriptors* descs = (const struct vusb_connect_descriptors*)a3; return syz_usb_connect_impl(speed, dev_len, dev, descs, &lookup_connect_response_out_generic); } static volatile long syz_usb_connect_ath9k(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { uint64_t speed = a0; uint64_t dev_len = a1; const char* dev = (const char*)a2; const struct vusb_connect_descriptors* descs = (const struct vusb_connect_descriptors*)a3; return syz_usb_connect_impl(speed, dev_len, dev, descs, &lookup_connect_response_out_ath9k); } static volatile long syz_usb_control_io(volatile long a0, volatile long a1, volatile long a2) { int fd = a0; const struct vusb_descriptors* descs = (const struct vusb_descriptors*)a1; const struct vusb_responses* resps = (const struct vusb_responses*)a2; struct usb_raw_control_event event; event.inner.type = 0; event.inner.length = USB_MAX_PACKET_SIZE; int rv = usb_raw_event_fetch(fd, (struct usb_raw_event*)&event); if (rv < 0) { return rv; } if (event.inner.type != USB_RAW_EVENT_CONTROL) { return -1; } char* response_data = NULL; uint32_t response_length = 0; if ((event.ctrl.bRequestType & USB_DIR_IN) && event.ctrl.wLength) { if (!lookup_control_response(descs, resps, &event.ctrl, &response_data, &response_length)) { usb_raw_ep0_stall(fd); return -1; } } else { if ((event.ctrl.bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD || event.ctrl.bRequest == USB_REQ_SET_INTERFACE) { int iface_num = event.ctrl.wIndex; int alt_set = event.ctrl.wValue; int iface_index = lookup_interface(fd, iface_num, alt_set); if (iface_index < 0) { } else { set_interface(fd, iface_index); } } response_length = event.ctrl.wLength; } struct usb_raw_ep_io_data response; response.inner.ep = 0; response.inner.flags = 0; if (response_length > sizeof(response.data)) response_length = 0; if (event.ctrl.wLength < response_length) response_length = event.ctrl.wLength; if ((event.ctrl.bRequestType & USB_DIR_IN) && !event.ctrl.wLength) { response_length = USB_MAX_PACKET_SIZE; } response.inner.length = response_length; if (response_data) memcpy(&response.data[0], response_data, response_length); else memset(&response.data[0], 0, response_length); if ((event.ctrl.bRequestType & USB_DIR_IN) && event.ctrl.wLength) { rv = usb_raw_ep0_write(fd, (struct usb_raw_ep_io*)&response); } else { rv = usb_raw_ep0_read(fd, (struct usb_raw_ep_io*)&response); } if (rv < 0) { return rv; } sleep_ms(200); return 0; } static volatile long syz_usb_ep_write(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { int fd = a0; uint8_t ep = a1; uint32_t len = a2; char* data = (char*)a3; int ep_handle = lookup_endpoint(fd, ep); if (ep_handle < 0) { return -1; } struct usb_raw_ep_io_data io_data; io_data.inner.ep = ep_handle; io_data.inner.flags = 0; if (len > sizeof(io_data.data)) len = sizeof(io_data.data); io_data.inner.length = len; memcpy(&io_data.data[0], data, len); int rv = usb_raw_ep_write(fd, (struct usb_raw_ep_io*)&io_data); if (rv < 0) { return rv; } sleep_ms(200); return 0; } static volatile long syz_usb_ep_read(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { int fd = a0; uint8_t ep = a1; uint32_t len = a2; char* data = (char*)a3; int ep_handle = lookup_endpoint(fd, ep); if (ep_handle < 0) { return -1; } struct usb_raw_ep_io_data io_data; io_data.inner.ep = ep_handle; io_data.inner.flags = 0; if (len > sizeof(io_data.data)) len = sizeof(io_data.data); io_data.inner.length = len; int rv = usb_raw_ep_read(fd, (struct usb_raw_ep_io*)&io_data); if (rv < 0) { return rv; } memcpy(&data[0], &io_data.data[0], io_data.inner.length); sleep_ms(200); return 0; } static volatile long syz_usb_disconnect(volatile long a0) { int fd = a0; int rv = close(fd); sleep_ms(200); return rv; } static long syz_open_dev(volatile long a0, volatile long a1, volatile long a2) { if (a0 == 0xc || a0 == 0xb) { char buf[128]; sprintf(buf, "/dev/%s/%d:%d", a0 == 0xc ? "char" : "block", (uint8_t)a1, (uint8_t)a2); return open(buf, O_RDWR, 0); } else { unsigned long nb = a1; char buf[1024]; char* hash; strncpy(buf, (char*)a0, sizeof(buf) - 1); buf[sizeof(buf) - 1] = 0; while ((hash = strchr(buf, '#'))) { *hash = '0' + (char)(nb % 10); nb /= 10; } return open(buf, a2 & ~O_CREAT, 0); } } static long syz_open_procfs(volatile long a0, volatile long a1) { char buf[128]; memset(buf, 0, sizeof(buf)); if (a0 == 0) { snprintf(buf, sizeof(buf), "/proc/self/%s", (char*)a1); } else if (a0 == -1) { snprintf(buf, sizeof(buf), "/proc/thread-self/%s", (char*)a1); } else { snprintf(buf, sizeof(buf), "/proc/self/task/%d/%s", (int)a0, (char*)a1); } int fd = open(buf, O_RDWR); if (fd == -1) fd = open(buf, O_RDONLY); return fd; } static long syz_open_pts(volatile long a0, volatile long a1) { int ptyno = 0; if (ioctl(a0, TIOCGPTN, &ptyno)) return -1; char buf[128]; sprintf(buf, "/dev/pts/%d", ptyno); return open(buf, a1, 0); } static long syz_init_net_socket(volatile long domain, volatile long type, volatile long proto) { int netns = open("/proc/self/ns/net", O_RDONLY); if (netns == -1) return netns; if (setns(kInitNetNsFd, 0)) return -1; int sock = syscall(__NR_socket, domain, type, proto); int err = errno; if (setns(netns, 0)) { exit(1); } close(netns); errno = err; return sock; } static long syz_socket_connect_nvme_tcp() { struct sockaddr_in nvme_local_address; int netns = open("/proc/self/ns/net", O_RDONLY); if (netns == -1) return netns; if (setns(kInitNetNsFd, 0)) return -1; int sock = syscall(__NR_socket, AF_INET, SOCK_STREAM, 0x0); int err = errno; if (setns(netns, 0)) { exit(1); } close(netns); errno = err; nvme_local_address.sin_family = AF_INET; nvme_local_address.sin_port = htobe16(4420); nvme_local_address.sin_addr.s_addr = htobe32(0x7f000001); err = syscall(__NR_connect, sock, &nvme_local_address, sizeof(nvme_local_address)); if (err != 0) { close(sock); return -1; } return sock; } static long syz_genetlink_get_family_id(volatile long name, volatile long sock_arg) { int fd = sock_arg; if (fd < 0) { fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC); if (fd == -1) { return -1; } } struct nlmsg nlmsg_tmp; int ret = netlink_query_family_id(&nlmsg_tmp, fd, (char*)name, false); if ((int)sock_arg < 0) close(fd); if (ret < 0) { return -1; } return ret; } //% This code is derived from puff.{c,h}, found in the zlib development. The //% original files come with the following copyright notice: //% Copyright (C) 2002-2013 Mark Adler, all rights reserved //% version 2.3, 21 Jan 2013 //% This software is provided 'as-is', without any express or implied //% warranty. In no event will the author be held liable for any damages //% arising from the use of this software. //% Permission is granted to anyone to use this software for any purpose, //% including commercial applications, and to alter it and redistribute it //% freely, subject to the following restrictions: //% 1. The origin of this software must not be misrepresented; you must not //% claim that you wrote the original software. If you use this software //% in a product, an acknowledgment in the product documentation would be //% appreciated but is not required. //% 2. Altered source versions must be plainly marked as such, and must not be //% misrepresented as being the original software. //% 3. This notice may not be removed or altered from any source distribution. //% Mark Adler madler@alumni.caltech.edu //% BEGIN CODE DERIVED FROM puff.{c,h} #define MAXBITS 15 #define MAXLCODES 286 #define MAXDCODES 30 #define MAXCODES (MAXLCODES + MAXDCODES) #define FIXLCODES 288 struct puff_state { unsigned char* out; unsigned long outlen; unsigned long outcnt; const unsigned char* in; unsigned long inlen; unsigned long incnt; int bitbuf; int bitcnt; jmp_buf env; }; static int puff_bits(struct puff_state* s, int need) { long val = s->bitbuf; while (s->bitcnt < need) { if (s->incnt == s->inlen) longjmp(s->env, 1); val |= (long)(s->in[s->incnt++]) << s->bitcnt; s->bitcnt += 8; } s->bitbuf = (int)(val >> need); s->bitcnt -= need; return (int)(val & ((1L << need) - 1)); } static int puff_stored(struct puff_state* s) { s->bitbuf = 0; s->bitcnt = 0; if (s->incnt + 4 > s->inlen) return 2; unsigned len = s->in[s->incnt++]; len |= s->in[s->incnt++] << 8; if (s->in[s->incnt++] != (~len & 0xff) || s->in[s->incnt++] != ((~len >> 8) & 0xff)) return -2; if (s->incnt + len > s->inlen) return 2; if (s->outcnt + len > s->outlen) return 1; for (; len--; s->outcnt++, s->incnt++) { if (s->in[s->incnt]) s->out[s->outcnt] = s->in[s->incnt]; } return 0; } struct puff_huffman { short* count; short* symbol; }; static int puff_decode(struct puff_state* s, const struct puff_huffman* h) { int first = 0; int index = 0; int bitbuf = s->bitbuf; int left = s->bitcnt; int code = first = index = 0; int len = 1; short* next = h->count + 1; while (1) { while (left--) { code |= bitbuf & 1; bitbuf >>= 1; int count = *next++; if (code - count < first) { s->bitbuf = bitbuf; s->bitcnt = (s->bitcnt - len) & 7; return h->symbol[index + (code - first)]; } index += count; first += count; first <<= 1; code <<= 1; len++; } left = (MAXBITS + 1) - len; if (left == 0) break; if (s->incnt == s->inlen) longjmp(s->env, 1); bitbuf = s->in[s->incnt++]; if (left > 8) left = 8; } return -10; } static int puff_construct(struct puff_huffman* h, const short* length, int n) { int len; for (len = 0; len <= MAXBITS; len++) h->count[len] = 0; int symbol; for (symbol = 0; symbol < n; symbol++) (h->count[length[symbol]])++; if (h->count[0] == n) return 0; int left = 1; for (len = 1; len <= MAXBITS; len++) { left <<= 1; left -= h->count[len]; if (left < 0) return left; } short offs[MAXBITS + 1]; offs[1] = 0; for (len = 1; len < MAXBITS; len++) offs[len + 1] = offs[len] + h->count[len]; for (symbol = 0; symbol < n; symbol++) if (length[symbol] != 0) h->symbol[offs[length[symbol]]++] = symbol; return left; } static int puff_codes(struct puff_state* s, const struct puff_huffman* lencode, const struct puff_huffman* distcode) { static const short lens[29] = { 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31, 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258}; static const short lext[29] = { 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0}; static const short dists[30] = { 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193, 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145, 8193, 12289, 16385, 24577}; static const short dext[30] = { 0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13}; int symbol; do { symbol = puff_decode(s, lencode); if (symbol < 0) return symbol; if (symbol < 256) { if (s->outcnt == s->outlen) return 1; if (symbol) s->out[s->outcnt] = symbol; s->outcnt++; } else if (symbol > 256) { symbol -= 257; if (symbol >= 29) return -10; int len = lens[symbol] + puff_bits(s, lext[symbol]); symbol = puff_decode(s, distcode); if (symbol < 0) return symbol; unsigned dist = dists[symbol] + puff_bits(s, dext[symbol]); if (dist > s->outcnt) return -11; if (s->outcnt + len > s->outlen) return 1; while (len--) { if (dist <= s->outcnt && s->out[s->outcnt - dist]) s->out[s->outcnt] = s->out[s->outcnt - dist]; s->outcnt++; } } } while (symbol != 256); return 0; } static int puff_fixed(struct puff_state* s) { static int virgin = 1; static short lencnt[MAXBITS + 1], lensym[FIXLCODES]; static short distcnt[MAXBITS + 1], distsym[MAXDCODES]; static struct puff_huffman lencode, distcode; if (virgin) { lencode.count = lencnt; lencode.symbol = lensym; distcode.count = distcnt; distcode.symbol = distsym; short lengths[FIXLCODES]; int symbol; for (symbol = 0; symbol < 144; symbol++) lengths[symbol] = 8; for (; symbol < 256; symbol++) lengths[symbol] = 9; for (; symbol < 280; symbol++) lengths[symbol] = 7; for (; symbol < FIXLCODES; symbol++) lengths[symbol] = 8; puff_construct(&lencode, lengths, FIXLCODES); for (symbol = 0; symbol < MAXDCODES; symbol++) lengths[symbol] = 5; puff_construct(&distcode, lengths, MAXDCODES); virgin = 0; } return puff_codes(s, &lencode, &distcode); } static int puff_dynamic(struct puff_state* s) { static const short order[19] = {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15}; int nlen = puff_bits(s, 5) + 257; int ndist = puff_bits(s, 5) + 1; int ncode = puff_bits(s, 4) + 4; if (nlen > MAXLCODES || ndist > MAXDCODES) return -3; short lengths[MAXCODES]; int index; for (index = 0; index < ncode; index++) lengths[order[index]] = puff_bits(s, 3); for (; index < 19; index++) lengths[order[index]] = 0; short lencnt[MAXBITS + 1], lensym[MAXLCODES]; struct puff_huffman lencode = {lencnt, lensym}; int err = puff_construct(&lencode, lengths, 19); if (err != 0) return -4; index = 0; while (index < nlen + ndist) { int symbol; int len; symbol = puff_decode(s, &lencode); if (symbol < 0) return symbol; if (symbol < 16) lengths[index++] = symbol; else { len = 0; if (symbol == 16) { if (index == 0) return -5; len = lengths[index - 1]; symbol = 3 + puff_bits(s, 2); } else if (symbol == 17) symbol = 3 + puff_bits(s, 3); else symbol = 11 + puff_bits(s, 7); if (index + symbol > nlen + ndist) return -6; while (symbol--) lengths[index++] = len; } } if (lengths[256] == 0) return -9; err = puff_construct(&lencode, lengths, nlen); if (err && (err < 0 || nlen != lencode.count[0] + lencode.count[1])) return -7; short distcnt[MAXBITS + 1], distsym[MAXDCODES]; struct puff_huffman distcode = {distcnt, distsym}; err = puff_construct(&distcode, lengths + nlen, ndist); if (err && (err < 0 || ndist != distcode.count[0] + distcode.count[1])) return -8; return puff_codes(s, &lencode, &distcode); } static int puff( unsigned char* dest, unsigned long* destlen, const unsigned char* source, unsigned long sourcelen) { struct puff_state s = { .out = dest, .outlen = *destlen, .outcnt = 0, .in = source, .inlen = sourcelen, .incnt = 0, .bitbuf = 0, .bitcnt = 0, }; int err; if (setjmp(s.env) != 0) err = 2; else { int last; do { last = puff_bits(&s, 1); int type = puff_bits(&s, 2); err = type == 0 ? puff_stored(&s) : (type == 1 ? puff_fixed(&s) : (type == 2 ? puff_dynamic(&s) : -1)); if (err != 0) break; } while (!last); } *destlen = s.outcnt; return err; } //% END CODE DERIVED FROM puff.{c,h} #define ZLIB_HEADER_WIDTH 2 static int puff_zlib_to_file(const unsigned char* source, unsigned long sourcelen, int dest_fd) { if (sourcelen < ZLIB_HEADER_WIDTH) return 0; source += ZLIB_HEADER_WIDTH; sourcelen -= ZLIB_HEADER_WIDTH; const unsigned long max_destlen = 132 << 20; void* ret = mmap(0, max_destlen, PROT_WRITE | PROT_READ, MAP_PRIVATE | MAP_ANON, -1, 0); if (ret == MAP_FAILED) return -1; unsigned char* dest = (unsigned char*)ret; unsigned long destlen = max_destlen; int err = puff(dest, &destlen, source, sourcelen); if (err) { munmap(dest, max_destlen); errno = -err; return -1; } if (write(dest_fd, dest, destlen) != (ssize_t)destlen) { munmap(dest, max_destlen); return -1; } return munmap(dest, max_destlen); } static int setup_loop_device(unsigned char* data, unsigned long size, const char* loopname, int* loopfd_p) { int err = 0, loopfd = -1; int memfd = syscall(__NR_memfd_create, "syzkaller", 0); if (memfd == -1) { err = errno; goto error; } if (puff_zlib_to_file(data, size, memfd)) { err = errno; goto error_close_memfd; } loopfd = open(loopname, O_RDWR); if (loopfd == -1) { err = errno; goto error_close_memfd; } if (ioctl(loopfd, LOOP_SET_FD, memfd)) { if (errno != EBUSY) { err = errno; goto error_close_loop; } ioctl(loopfd, LOOP_CLR_FD, 0); usleep(1000); if (ioctl(loopfd, LOOP_SET_FD, memfd)) { err = errno; goto error_close_loop; } } close(memfd); *loopfd_p = loopfd; return 0; error_close_loop: close(loopfd); error_close_memfd: close(memfd); error: errno = err; return -1; } static void reset_loop_device(const char* loopname) { int loopfd = open(loopname, O_RDWR); if (loopfd == -1) { return; } if (ioctl(loopfd, LOOP_CLR_FD, 0)) { } close(loopfd); } static long syz_mount_image( volatile long fsarg, volatile long dir, volatile long flags, volatile long optsarg, volatile long change_dir, volatile unsigned long size, volatile long image) { unsigned char* data = (unsigned char*)image; int res = -1, err = 0, need_loop_device = !!size; char* mount_opts = (char*)optsarg; char* target = (char*)dir; char* fs = (char*)fsarg; char* source = NULL; char loopname[64]; if (need_loop_device) { int loopfd; memset(loopname, 0, sizeof(loopname)); snprintf(loopname, sizeof(loopname), "/dev/loop%llu", procid); if (setup_loop_device(data, size, loopname, &loopfd) == -1) return -1; close(loopfd); source = loopname; } mkdir(target, 0777); char opts[256]; memset(opts, 0, sizeof(opts)); if (strlen(mount_opts) > (sizeof(opts) - 32)) { } strncpy(opts, mount_opts, sizeof(opts) - 32); if (strcmp(fs, "iso9660") == 0) { flags |= MS_RDONLY; } else if (strncmp(fs, "ext", 3) == 0) { bool has_remount_ro = false; char* remount_ro_start = strstr(opts, "errors=remount-ro"); if (remount_ro_start != NULL) { char after = *(remount_ro_start + strlen("errors=remount-ro")); char before = remount_ro_start == opts ? '\0' : *(remount_ro_start - 1); has_remount_ro = ((before == '\0' || before == ',') && (after == '\0' || after == ',')); } if (strstr(opts, "errors=panic") || !has_remount_ro) strcat(opts, ",errors=continue"); } else if (strcmp(fs, "xfs") == 0) { strcat(opts, ",nouuid"); } else if (strncmp(fs, "gfs2", 4) == 0 && (strstr(opts, "errors=panic") || strstr(opts, "debug"))) { strcat(opts, ",errors=withdraw"); } res = mount(source, target, fs, flags, opts); if (res == -1) { err = errno; goto error_clear_loop; } res = open(target, O_RDONLY | O_DIRECTORY); if (res == -1) { err = errno; goto error_clear_loop; } if (change_dir) { res = chdir(target); if (res == -1) { err = errno; } } error_clear_loop: if (need_loop_device) reset_loop_device(loopname); errno = err; return res; } #define noinline __attribute__((noinline)) #define __no_stack_protector #define __addrspace_guest #define __optnone #define GUEST_CODE __attribute__((section("guest"))) __no_stack_protector __addrspace_guest extern char *__start_guest, *__stop_guest; #define X86_ADDR_TEXT 0x0000 #define X86_ADDR_PD_IOAPIC 0x0000 #define X86_ADDR_GDT 0x1000 #define X86_ADDR_LDT 0x1800 #define X86_ADDR_PML4 0x2000 #define X86_ADDR_PDP 0x3000 #define X86_ADDR_PD 0x4000 #define X86_ADDR_STACK0 0x0f80 #define X86_ADDR_VAR_HLT 0x2800 #define X86_ADDR_VAR_SYSRET 0x2808 #define X86_ADDR_VAR_SYSEXIT 0x2810 #define X86_ADDR_VAR_IDT 0x3800 #define X86_ADDR_VAR_TSS64 0x3a00 #define X86_ADDR_VAR_TSS64_CPL3 0x3c00 #define X86_ADDR_VAR_TSS16 0x3d00 #define X86_ADDR_VAR_TSS16_2 0x3e00 #define X86_ADDR_VAR_TSS16_CPL3 0x3f00 #define X86_ADDR_VAR_TSS32 0x4800 #define X86_ADDR_VAR_TSS32_2 0x4a00 #define X86_ADDR_VAR_TSS32_CPL3 0x4c00 #define X86_ADDR_VAR_TSS32_VM86 0x4e00 #define X86_ADDR_VAR_VMXON_PTR 0x5f00 #define X86_ADDR_VAR_VMCS_PTR 0x5f08 #define X86_ADDR_VAR_VMEXIT_PTR 0x5f10 #define X86_ADDR_VAR_VMWRITE_FLD 0x5f18 #define X86_ADDR_VAR_VMWRITE_VAL 0x5f20 #define X86_ADDR_VAR_VMXON 0x6000 #define X86_ADDR_VAR_VMCS 0x7000 #define X86_ADDR_VAR_VMEXIT_CODE 0x9000 #define X86_ADDR_VAR_USER_CODE 0x9100 #define X86_ADDR_VAR_USER_CODE2 0x9120 #define X86_SYZOS_ADDR_ZERO 0x0 #define X86_SYZOS_ADDR_GDT 0x1000 #define X86_SYZOS_ADDR_PML4 0x2000 #define X86_SYZOS_ADDR_PDP 0x3000 #define X86_SYZOS_ADDR_PT_POOL 0x5000 #define X86_SYZOS_ADDR_VAR_IDT 0x25000 #define X86_SYZOS_ADDR_VAR_TSS 0x26000 #define X86_SYZOS_ADDR_SMRAM 0x30000 #define X86_SYZOS_ADDR_EXIT 0x40000 #define X86_SYZOS_ADDR_UEXIT (X86_SYZOS_ADDR_EXIT + 256) #define X86_SYZOS_ADDR_DIRTY_PAGES 0x41000 #define X86_SYZOS_ADDR_USER_CODE 0x50000 #define SYZOS_ADDR_EXECUTOR_CODE 0x54000 #define X86_SYZOS_ADDR_SCRATCH_CODE 0x58000 #define X86_SYZOS_ADDR_STACK_BOTTOM 0x60000 #define X86_SYZOS_ADDR_STACK0 0x60f80 #define X86_SYZOS_PER_VCPU_REGIONS_BASE 0x70000 #define X86_SYZOS_L1_VCPU_REGION_SIZE 0x40000 #define X86_SYZOS_L1_VCPU_OFFSET_VM_ARCH_SPECIFIC 0x0000 #define X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA 0x1000 #define X86_SYZOS_L2_VM_REGION_SIZE 0x8000 #define X86_SYZOS_L2_VM_OFFSET_VMCS_VMCB 0x0000 #define X86_SYZOS_L2_VM_OFFSET_VM_STACK 0x1000 #define X86_SYZOS_L2_VM_OFFSET_VM_CODE 0x2000 #define X86_SYZOS_L2_VM_OFFSET_VM_PGTABLE 0x3000 #define X86_SYZOS_L2_VM_OFFSET_MSR_BITMAP 0x7000 #define X86_SYZOS_ADDR_UNUSED 0x200000 #define X86_SYZOS_ADDR_IOAPIC 0xfec00000 #define X86_SYZOS_ADDR_VMCS_VMCB(cpu,vm) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA + (vm) * X86_SYZOS_L2_VM_REGION_SIZE + X86_SYZOS_L2_VM_OFFSET_VMCS_VMCB) #define X86_SYZOS_ADDR_VM_CODE(cpu,vm) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA + (vm) * X86_SYZOS_L2_VM_REGION_SIZE + X86_SYZOS_L2_VM_OFFSET_VM_CODE) #define X86_SYZOS_ADDR_VM_STACK(cpu,vm) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA + (vm) * X86_SYZOS_L2_VM_REGION_SIZE + X86_SYZOS_L2_VM_OFFSET_VM_STACK) #define X86_SYZOS_ADDR_VM_PGTABLE(cpu,vm) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA + (vm) * X86_SYZOS_L2_VM_REGION_SIZE + X86_SYZOS_L2_VM_OFFSET_VM_PGTABLE) #define X86_SYZOS_ADDR_MSR_BITMAP(cpu,vm) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA + (vm) * X86_SYZOS_L2_VM_REGION_SIZE + X86_SYZOS_L2_VM_OFFSET_MSR_BITMAP) #define X86_SYZOS_ADDR_VM_ARCH_SPECIFIC(cpu) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_VM_ARCH_SPECIFIC) #define X86_SYZOS_SEL_CODE 0x8 #define X86_SYZOS_SEL_DATA 0x10 #define X86_SYZOS_SEL_TSS64 0x18 #define X86_CR0_PE 1ULL #define X86_CR0_MP (1ULL << 1) #define X86_CR0_EM (1ULL << 2) #define X86_CR0_TS (1ULL << 3) #define X86_CR0_ET (1ULL << 4) #define X86_CR0_NE (1ULL << 5) #define X86_CR0_WP (1ULL << 16) #define X86_CR0_AM (1ULL << 18) #define X86_CR0_NW (1ULL << 29) #define X86_CR0_CD (1ULL << 30) #define X86_CR0_PG (1ULL << 31) #define X86_CR4_VME 1ULL #define X86_CR4_PVI (1ULL << 1) #define X86_CR4_TSD (1ULL << 2) #define X86_CR4_DE (1ULL << 3) #define X86_CR4_PSE (1ULL << 4) #define X86_CR4_PAE (1ULL << 5) #define X86_CR4_MCE (1ULL << 6) #define X86_CR4_PGE (1ULL << 7) #define X86_CR4_PCE (1ULL << 8) #define X86_CR4_OSFXSR (1ULL << 8) #define X86_CR4_OSXMMEXCPT (1ULL << 10) #define X86_CR4_UMIP (1ULL << 11) #define X86_CR4_VMXE (1ULL << 13) #define X86_CR4_SMXE (1ULL << 14) #define X86_CR4_FSGSBASE (1ULL << 16) #define X86_CR4_PCIDE (1ULL << 17) #define X86_CR4_OSXSAVE (1ULL << 18) #define X86_CR4_SMEP (1ULL << 20) #define X86_CR4_SMAP (1ULL << 21) #define X86_CR4_PKE (1ULL << 22) #define X86_EFER_SCE 1ULL #define X86_EFER_LME (1ULL << 8) #define X86_EFER_LMA (1ULL << 10) #define X86_EFER_NXE (1ULL << 11) #define X86_EFER_SVME (1ULL << 12) #define X86_EFER_LMSLE (1ULL << 13) #define X86_EFER_FFXSR (1ULL << 14) #define X86_EFER_TCE (1ULL << 15) #define X86_PDE32_PRESENT 1UL #define X86_PDE32_RW (1UL << 1) #define X86_PDE32_USER (1UL << 2) #define X86_PDE32_PS (1UL << 7) #define X86_PDE64_PRESENT 1 #define X86_PDE64_RW (1ULL << 1) #define X86_PDE64_USER (1ULL << 2) #define X86_PDE64_ACCESSED (1ULL << 5) #define X86_PDE64_DIRTY (1ULL << 6) #define X86_PDE64_PS (1ULL << 7) #define X86_PDE64_G (1ULL << 8) #define EPT_MEMTYPE_WB (6ULL << 3) #define EPT_ACCESSED (1ULL << 8) #define EPT_DIRTY (1ULL << 9) #define X86_SEL_LDT (1 << 3) #define X86_SEL_CS16 (2 << 3) #define X86_SEL_DS16 (3 << 3) #define X86_SEL_CS16_CPL3 ((4 << 3) + 3) #define X86_SEL_DS16_CPL3 ((5 << 3) + 3) #define X86_SEL_CS32 (6 << 3) #define X86_SEL_DS32 (7 << 3) #define X86_SEL_CS32_CPL3 ((8 << 3) + 3) #define X86_SEL_DS32_CPL3 ((9 << 3) + 3) #define X86_SEL_CS64 (10 << 3) #define X86_SEL_DS64 (11 << 3) #define X86_SEL_CS64_CPL3 ((12 << 3) + 3) #define X86_SEL_DS64_CPL3 ((13 << 3) + 3) #define X86_SEL_CGATE16 (14 << 3) #define X86_SEL_TGATE16 (15 << 3) #define X86_SEL_CGATE32 (16 << 3) #define X86_SEL_TGATE32 (17 << 3) #define X86_SEL_CGATE64 (18 << 3) #define X86_SEL_CGATE64_HI (19 << 3) #define X86_SEL_TSS16 (20 << 3) #define X86_SEL_TSS16_2 (21 << 3) #define X86_SEL_TSS16_CPL3 ((22 << 3) + 3) #define X86_SEL_TSS32 (23 << 3) #define X86_SEL_TSS32_2 (24 << 3) #define X86_SEL_TSS32_CPL3 ((25 << 3) + 3) #define X86_SEL_TSS32_VM86 (26 << 3) #define X86_SEL_TSS64 (27 << 3) #define X86_SEL_TSS64_HI (28 << 3) #define X86_SEL_TSS64_CPL3 ((29 << 3) + 3) #define X86_SEL_TSS64_CPL3_HI (30 << 3) #define X86_MSR_IA32_FEATURE_CONTROL 0x3a #define X86_MSR_IA32_VMX_BASIC 0x480 #define X86_MSR_IA32_SMBASE 0x9e #define X86_MSR_IA32_SYSENTER_CS 0x174 #define X86_MSR_IA32_SYSENTER_ESP 0x175 #define X86_MSR_IA32_SYSENTER_EIP 0x176 #define X86_MSR_IA32_CR_PAT 0x277 #define X86_MSR_CORE_PERF_GLOBAL_CTRL 0x38f #define X86_MSR_IA32_VMX_TRUE_PINBASED_CTLS 0x48d #define X86_MSR_IA32_VMX_TRUE_PROCBASED_CTLS 0x48e #define X86_MSR_IA32_VMX_TRUE_EXIT_CTLS 0x48f #define X86_MSR_IA32_VMX_TRUE_ENTRY_CTLS 0x490 #define X86_MSR_IA32_EFER 0xc0000080 #define X86_MSR_IA32_STAR 0xC0000081 #define X86_MSR_IA32_LSTAR 0xC0000082 #define X86_MSR_FS_BASE 0xc0000100 #define X86_MSR_GS_BASE 0xc0000101 #define X86_MSR_VM_HSAVE_PA 0xc0010117 #define X86_MSR_IA32_VMX_PROCBASED_CTLS2 0x48B #define RFLAGS_1_BIT (1ULL << 1) #define CPU_BASED_HLT_EXITING (1U << 7) #define CPU_BASED_RDTSC_EXITING (1U << 12) #define AR_TSS_AVAILABLE 0x0089 #define SVM_ATTR_LDTR_UNUSABLE 0x0000 #define VMX_AR_TSS_BUSY 0x008b #define VMX_AR_TSS_AVAILABLE 0x0089 #define VMX_AR_LDTR_UNUSABLE 0x10000 #define VM_ENTRY_IA32E_MODE (1U << 9) #define SECONDARY_EXEC_ENABLE_EPT (1U << 1) #define SECONDARY_EXEC_ENABLE_RDTSCP (1U << 3) #define VM_EXIT_HOST_ADDR_SPACE_SIZE (1U << 9) #define CPU_BASED_ACTIVATE_SECONDARY_CONTROLS (1U << 31) #define VMX_ACCESS_RIGHTS_P (1 << 7) #define VMX_ACCESS_RIGHTS_S (1 << 4) #define VMX_ACCESS_RIGHTS_TYPE_A (1 << 0) #define VMX_ACCESS_RIGHTS_TYPE_RW (1 << 1) #define VMX_ACCESS_RIGHTS_TYPE_E (1 << 3) #define VMX_ACCESS_RIGHTS_G (1 << 15) #define VMX_ACCESS_RIGHTS_DB (1 << 14) #define VMX_ACCESS_RIGHTS_L (1 << 13) #define VMX_AR_64BIT_DATA_STACK (VMX_ACCESS_RIGHTS_P | VMX_ACCESS_RIGHTS_S | VMX_ACCESS_RIGHTS_TYPE_RW | VMX_ACCESS_RIGHTS_TYPE_A | VMX_ACCESS_RIGHTS_G | VMX_ACCESS_RIGHTS_DB) #define VMX_AR_64BIT_CODE (VMX_ACCESS_RIGHTS_P | VMX_ACCESS_RIGHTS_S | VMX_ACCESS_RIGHTS_TYPE_E | VMX_ACCESS_RIGHTS_TYPE_RW | VMX_ACCESS_RIGHTS_TYPE_A | VMX_ACCESS_RIGHTS_G | VMX_ACCESS_RIGHTS_L) #define VMCS_VIRTUAL_PROCESSOR_ID 0x00000000 #define VMCS_POSTED_INTR_NV 0x00000002 #define VMCS_MSR_BITMAP 0x00002004 #define VMCS_VMREAD_BITMAP 0x00002006 #define VMCS_VMWRITE_BITMAP 0x00002008 #define VMCS_EPT_POINTER 0x0000201a #define VMCS_LINK_POINTER 0x00002800 #define VMCS_PIN_BASED_VM_EXEC_CONTROL 0x00004000 #define VMCS_CPU_BASED_VM_EXEC_CONTROL 0x00004002 #define VMCS_EXCEPTION_BITMAP 0x00004004 #define VMCS_PAGE_FAULT_ERROR_CODE_MASK 0x00004006 #define VMCS_PAGE_FAULT_ERROR_CODE_MATCH 0x00004008 #define VMCS_CR3_TARGET_COUNT 0x0000400a #define VMCS_VM_EXIT_CONTROLS 0x0000400c #define VMCS_VM_EXIT_MSR_STORE_COUNT 0x0000400e #define VMCS_VM_EXIT_MSR_LOAD_COUNT 0x00004010 #define VMCS_VM_ENTRY_CONTROLS 0x00004012 #define VMCS_VM_ENTRY_MSR_LOAD_COUNT 0x00004014 #define VMCS_VM_ENTRY_INTR_INFO_FIELD 0x00004016 #define VMCS_TPR_THRESHOLD 0x0000401c #define VMCS_SECONDARY_VM_EXEC_CONTROL 0x0000401e #define VMCS_VM_INSTRUCTION_ERROR 0x00004400 #define VMCS_VM_EXIT_REASON 0x00004402 #define VMCS_VMX_PREEMPTION_TIMER_VALUE 0x0000482e #define VMCS_CR0_GUEST_HOST_MASK 0x00006000 #define VMCS_CR4_GUEST_HOST_MASK 0x00006002 #define VMCS_CR0_READ_SHADOW 0x00006004 #define VMCS_CR4_READ_SHADOW 0x00006006 #define VMCS_HOST_ES_SELECTOR 0x00000c00 #define VMCS_HOST_CS_SELECTOR 0x00000c02 #define VMCS_HOST_SS_SELECTOR 0x00000c04 #define VMCS_HOST_DS_SELECTOR 0x00000c06 #define VMCS_HOST_FS_SELECTOR 0x00000c08 #define VMCS_HOST_GS_SELECTOR 0x00000c0a #define VMCS_HOST_TR_SELECTOR 0x00000c0c #define VMCS_HOST_IA32_PAT 0x00002c00 #define VMCS_HOST_IA32_EFER 0x00002c02 #define VMCS_HOST_IA32_PERF_GLOBAL_CTRL 0x00002c04 #define VMCS_HOST_IA32_SYSENTER_CS 0x00004c00 #define VMCS_HOST_CR0 0x00006c00 #define VMCS_HOST_CR3 0x00006c02 #define VMCS_HOST_CR4 0x00006c04 #define VMCS_HOST_FS_BASE 0x00006c06 #define VMCS_HOST_GS_BASE 0x00006c08 #define VMCS_HOST_TR_BASE 0x00006c0a #define VMCS_HOST_GDTR_BASE 0x00006c0c #define VMCS_HOST_IDTR_BASE 0x00006c0e #define VMCS_HOST_IA32_SYSENTER_ESP 0x00006c10 #define VMCS_HOST_IA32_SYSENTER_EIP 0x00006c12 #define VMCS_HOST_RSP 0x00006c14 #define VMCS_HOST_RIP 0x00006c16 #define VMCS_GUEST_INTR_STATUS 0x00000810 #define VMCS_GUEST_PML_INDEX 0x00000812 #define VMCS_GUEST_IA32_DEBUGCTL 0x00002802 #define VMCS_GUEST_IA32_PAT 0x00002804 #define VMCS_GUEST_IA32_EFER 0x00002806 #define VMCS_GUEST_IA32_PERF_GLOBAL_CTRL 0x00002808 #define VMCS_GUEST_ES_SELECTOR 0x00000800 #define VMCS_GUEST_CS_SELECTOR 0x00000802 #define VMCS_GUEST_SS_SELECTOR 0x00000804 #define VMCS_GUEST_DS_SELECTOR 0x00000806 #define VMCS_GUEST_FS_SELECTOR 0x00000808 #define VMCS_GUEST_GS_SELECTOR 0x0000080a #define VMCS_GUEST_LDTR_SELECTOR 0x0000080c #define VMCS_GUEST_TR_SELECTOR 0x0000080e #define VMCS_GUEST_ES_LIMIT 0x00004800 #define VMCS_GUEST_CS_LIMIT 0x00004802 #define VMCS_GUEST_SS_LIMIT 0x00004804 #define VMCS_GUEST_DS_LIMIT 0x00004806 #define VMCS_GUEST_FS_LIMIT 0x00004808 #define VMCS_GUEST_GS_LIMIT 0x0000480a #define VMCS_GUEST_LDTR_LIMIT 0x0000480c #define VMCS_GUEST_TR_LIMIT 0x0000480e #define VMCS_GUEST_GDTR_LIMIT 0x00004810 #define VMCS_GUEST_IDTR_LIMIT 0x00004812 #define VMCS_GUEST_ES_ACCESS_RIGHTS 0x00004814 #define VMCS_GUEST_CS_ACCESS_RIGHTS 0x00004816 #define VMCS_GUEST_SS_ACCESS_RIGHTS 0x00004818 #define VMCS_GUEST_DS_ACCESS_RIGHTS 0x0000481a #define VMCS_GUEST_FS_ACCESS_RIGHTS 0x0000481c #define VMCS_GUEST_GS_ACCESS_RIGHTS 0x0000481e #define VMCS_GUEST_LDTR_ACCESS_RIGHTS 0x00004820 #define VMCS_GUEST_TR_ACCESS_RIGHTS 0x00004822 #define VMCS_GUEST_ACTIVITY_STATE 0x00004824 #define VMCS_GUEST_INTERRUPTIBILITY_INFO 0x00004826 #define VMCS_GUEST_SYSENTER_CS 0x0000482a #define VMCS_GUEST_CR0 0x00006800 #define VMCS_GUEST_CR3 0x00006802 #define VMCS_GUEST_CR4 0x00006804 #define VMCS_GUEST_ES_BASE 0x00006806 #define VMCS_GUEST_CS_BASE 0x00006808 #define VMCS_GUEST_SS_BASE 0x0000680a #define VMCS_GUEST_DS_BASE 0x0000680c #define VMCS_GUEST_FS_BASE 0x0000680e #define VMCS_GUEST_GS_BASE 0x00006810 #define VMCS_GUEST_LDTR_BASE 0x00006812 #define VMCS_GUEST_TR_BASE 0x00006814 #define VMCS_GUEST_GDTR_BASE 0x00006816 #define VMCS_GUEST_IDTR_BASE 0x00006818 #define VMCS_GUEST_DR7 0x0000681a #define VMCS_GUEST_RSP 0x0000681c #define VMCS_GUEST_RIP 0x0000681e #define VMCS_GUEST_RFLAGS 0x00006820 #define VMCS_GUEST_PENDING_DBG_EXCEPTIONS 0x00006822 #define VMCS_GUEST_SYSENTER_ESP 0x00006824 #define VMCS_GUEST_SYSENTER_EIP 0x00006826 #define VMCB_CTRL_INTERCEPT_VEC3 0x0c #define VMCB_CTRL_INTERCEPT_VEC3_ALL (0xffffffff) #define VMCB_CTRL_INTERCEPT_VEC4 0x10 #define VMCB_CTRL_INTERCEPT_VEC4_ALL (0x3ff) #define VMCB_CTRL_ASID 0x058 #define VMCB_EXIT_CODE 0x070 #define VMCB_CTRL_NP_ENABLE 0x090 #define VMCB_CTRL_NPT_ENABLE_BIT 0 #define VMCB_CTRL_N_CR3 0x0b0 #define VMCB_GUEST_ES_SEL 0x400 #define VMCB_GUEST_ES_ATTR 0x402 #define VMCB_GUEST_ES_LIM 0x404 #define VMCB_GUEST_ES_BASE 0x408 #define VMCB_GUEST_CS_SEL 0x410 #define VMCB_GUEST_CS_ATTR 0x412 #define VMCB_GUEST_CS_LIM 0x414 #define VMCB_GUEST_CS_BASE 0x418 #define VMCB_GUEST_SS_SEL 0x420 #define VMCB_GUEST_SS_ATTR 0x422 #define VMCB_GUEST_SS_LIM 0x424 #define VMCB_GUEST_SS_BASE 0x428 #define VMCB_GUEST_DS_SEL 0x430 #define VMCB_GUEST_DS_ATTR 0x432 #define VMCB_GUEST_DS_LIM 0x434 #define VMCB_GUEST_DS_BASE 0x438 #define VMCB_GUEST_FS_SEL 0x440 #define VMCB_GUEST_FS_ATTR 0x442 #define VMCB_GUEST_FS_LIM 0x444 #define VMCB_GUEST_FS_BASE 0x448 #define VMCB_GUEST_GS_SEL 0x450 #define VMCB_GUEST_GS_ATTR 0x452 #define VMCB_GUEST_GS_LIM 0x454 #define VMCB_GUEST_GS_BASE 0x458 #define VMCB_GUEST_IDTR_SEL 0x480 #define VMCB_GUEST_IDTR_ATTR 0x482 #define VMCB_GUEST_IDTR_LIM 0x484 #define VMCB_GUEST_IDTR_BASE 0x488 #define VMCB_GUEST_GDTR_SEL 0x460 #define VMCB_GUEST_GDTR_ATTR 0x462 #define VMCB_GUEST_GDTR_LIM 0x464 #define VMCB_GUEST_GDTR_BASE 0x468 #define VMCB_GUEST_LDTR_SEL 0x470 #define VMCB_GUEST_LDTR_ATTR 0x472 #define VMCB_GUEST_LDTR_LIM 0x474 #define VMCB_GUEST_LDTR_BASE 0x478 #define VMCB_GUEST_TR_SEL 0x490 #define VMCB_GUEST_TR_ATTR 0x492 #define VMCB_GUEST_TR_LIM 0x494 #define VMCB_GUEST_TR_BASE 0x498 #define VMCB_GUEST_EFER 0x4d0 #define VMCB_GUEST_CR4 0x548 #define VMCB_GUEST_CR3 0x550 #define VMCB_GUEST_CR0 0x558 #define VMCB_GUEST_DR7 0x560 #define VMCB_GUEST_DR6 0x568 #define VMCB_GUEST_RFLAGS 0x570 #define VMCB_GUEST_RIP 0x578 #define VMCB_GUEST_RSP 0x5d8 #define VMCB_GUEST_PAT 0x668 #define VMCB_GUEST_DEBUGCTL 0x670 #define SVM_ATTR_G (1 << 15) #define SVM_ATTR_DB (1 << 14) #define SVM_ATTR_L (1 << 13) #define SVM_ATTR_P (1 << 7) #define SVM_ATTR_S (1 << 4) #define SVM_ATTR_TYPE_A (1 << 0) #define SVM_ATTR_TYPE_RW (1 << 1) #define SVM_ATTR_TYPE_E (1 << 3) #define SVM_ATTR_64BIT_CODE (SVM_ATTR_P | SVM_ATTR_S | SVM_ATTR_TYPE_E | SVM_ATTR_TYPE_RW | SVM_ATTR_TYPE_A | SVM_ATTR_L | SVM_ATTR_G) #define SVM_ATTR_64BIT_DATA (SVM_ATTR_P | SVM_ATTR_S | SVM_ATTR_TYPE_RW | SVM_ATTR_TYPE_A | SVM_ATTR_DB | SVM_ATTR_G) #define X86_NEXT_INSN $0xbadc0de #define X86_PREFIX_SIZE 0xba1d #define KVM_MAX_VCPU 4 #define KVM_PAGE_SIZE (1 << 12) #define KVM_GUEST_PAGES 1024 #define KVM_GUEST_MEM_SIZE (KVM_GUEST_PAGES * KVM_PAGE_SIZE) #define SZ_4K 0x00001000 #define SZ_64K 0x00010000 #define GENMASK_ULL(h,l) (((~0ULL) - (1ULL << (l)) + 1ULL) & (~0ULL >> (63 - (h)))) extern char* __start_guest; static inline uintptr_t executor_fn_guest_addr(void* fn) { volatile uintptr_t start = (uintptr_t)&__start_guest; volatile uintptr_t offset = SYZOS_ADDR_EXECUTOR_CODE; return (uintptr_t)fn - start + offset; } typedef enum { SYZOS_API_UEXIT = 0, SYZOS_API_CODE = 10, SYZOS_API_CPUID = 100, SYZOS_API_WRMSR = 101, SYZOS_API_RDMSR = 102, SYZOS_API_WR_CRN = 103, SYZOS_API_WR_DRN = 104, SYZOS_API_IN_DX = 105, SYZOS_API_OUT_DX = 106, SYZOS_API_SET_IRQ_HANDLER = 200, SYZOS_API_ENABLE_NESTED = 300, SYZOS_API_NESTED_CREATE_VM = 301, SYZOS_API_NESTED_LOAD_CODE = 302, SYZOS_API_NESTED_VMLAUNCH = 303, SYZOS_API_NESTED_VMRESUME = 304, SYZOS_API_NESTED_INTEL_VMWRITE_MASK = 340, SYZOS_API_NESTED_AMD_VMCB_WRITE_MASK = 380, SYZOS_API_NESTED_AMD_INVLPGA = 381, SYZOS_API_NESTED_AMD_STGI = 382, SYZOS_API_NESTED_AMD_CLGI = 383, SYZOS_API_NESTED_AMD_INJECT_EVENT = 384, SYZOS_API_NESTED_AMD_SET_INTERCEPT = 385, SYZOS_API_NESTED_AMD_VMLOAD = 386, SYZOS_API_NESTED_AMD_VMSAVE = 387, SYZOS_API_STOP, } syzos_api_id; struct api_call_header { uint64_t call; uint64_t size; }; struct api_call_uexit { struct api_call_header header; uint64_t exit_code; }; struct api_call_code { struct api_call_header header; uint8_t insns[]; }; struct api_call_nested_load_code { struct api_call_header header; uint64_t vm_id; uint8_t insns[]; }; struct api_call_cpuid { struct api_call_header header; uint32_t eax; uint32_t ecx; }; struct api_call_1 { struct api_call_header header; uint64_t arg; }; struct api_call_2 { struct api_call_header header; uint64_t args[2]; }; struct api_call_3 { struct api_call_header header; uint64_t args[3]; }; struct api_call_5 { struct api_call_header header; uint64_t args[5]; }; struct l2_guest_regs { uint64_t rax, rbx, rcx, rdx, rsi, rdi, rbp; uint64_t r8, r9, r10, r11, r12, r13, r14, r15; }; GUEST_CODE static void guest_uexit(uint64_t exit_code); GUEST_CODE static void nested_vm_exit_handler_intel(uint64_t exit_reason, struct l2_guest_regs* regs); GUEST_CODE static void guest_execute_code(uint8_t* insns, uint64_t size); GUEST_CODE static void guest_handle_cpuid(uint32_t eax, uint32_t ecx); GUEST_CODE static void guest_handle_wrmsr(uint64_t reg, uint64_t val); GUEST_CODE static void guest_handle_rdmsr(uint64_t reg); GUEST_CODE static void guest_handle_wr_crn(struct api_call_2* cmd); GUEST_CODE static void guest_handle_wr_drn(struct api_call_2* cmd); GUEST_CODE static void guest_handle_in_dx(struct api_call_2* cmd); GUEST_CODE static void guest_handle_out_dx(struct api_call_3* cmd); GUEST_CODE static void guest_handle_set_irq_handler(struct api_call_2* cmd); GUEST_CODE static void guest_handle_enable_nested(struct api_call_1* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_create_vm(struct api_call_1* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_load_code(struct api_call_nested_load_code* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_vmlaunch(struct api_call_1* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_vmresume(struct api_call_1* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_intel_vmwrite_mask(struct api_call_5* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_vmcb_write_mask(struct api_call_5* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_invlpga(struct api_call_2* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_stgi(); GUEST_CODE static void guest_handle_nested_amd_clgi(); GUEST_CODE static void guest_handle_nested_amd_inject_event(struct api_call_5* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_set_intercept(struct api_call_5* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_vmload(struct api_call_1* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_vmsave(struct api_call_1* cmd, uint64_t cpu_id); typedef enum { UEXIT_END = (uint64_t)-1, UEXIT_IRQ = (uint64_t)-2, UEXIT_ASSERT = (uint64_t)-3, } uexit_code; typedef enum { CPU_VENDOR_INTEL, CPU_VENDOR_AMD, } cpu_vendor_id; __attribute__((naked)) GUEST_CODE static void dummy_null_handler() { asm("iretq"); } __attribute__((naked)) GUEST_CODE static void uexit_irq_handler() { asm volatile(R"( movq $-2, %rdi call guest_uexit iretq )"); } __attribute__((used)) GUEST_CODE static void guest_main(uint64_t size, uint64_t cpu) { uint64_t addr = X86_SYZOS_ADDR_USER_CODE + cpu * KVM_PAGE_SIZE; while (size >= sizeof(struct api_call_header)) { struct api_call_header* cmd = (struct api_call_header*)addr; if (cmd->call >= SYZOS_API_STOP) return; if (cmd->size > size) return; volatile uint64_t call = cmd->call; if (call == SYZOS_API_UEXIT) { struct api_call_uexit* ucmd = (struct api_call_uexit*)cmd; guest_uexit(ucmd->exit_code); } else if (call == SYZOS_API_CODE) { struct api_call_code* ccmd = (struct api_call_code*)cmd; guest_execute_code(ccmd->insns, cmd->size - sizeof(struct api_call_header)); } else if (call == SYZOS_API_CPUID) { struct api_call_cpuid* ccmd = (struct api_call_cpuid*)cmd; guest_handle_cpuid(ccmd->eax, ccmd->ecx); } else if (call == SYZOS_API_WRMSR) { struct api_call_2* ccmd = (struct api_call_2*)cmd; guest_handle_wrmsr(ccmd->args[0], ccmd->args[1]); } else if (call == SYZOS_API_RDMSR) { struct api_call_1* ccmd = (struct api_call_1*)cmd; guest_handle_rdmsr(ccmd->arg); } else if (call == SYZOS_API_WR_CRN) { guest_handle_wr_crn((struct api_call_2*)cmd); } else if (call == SYZOS_API_WR_DRN) { guest_handle_wr_drn((struct api_call_2*)cmd); } else if (call == SYZOS_API_IN_DX) { guest_handle_in_dx((struct api_call_2*)cmd); } else if (call == SYZOS_API_OUT_DX) { guest_handle_out_dx((struct api_call_3*)cmd); } else if (call == SYZOS_API_SET_IRQ_HANDLER) { guest_handle_set_irq_handler((struct api_call_2*)cmd); } else if (call == SYZOS_API_ENABLE_NESTED) { guest_handle_enable_nested((struct api_call_1*)cmd, cpu); } else if (call == SYZOS_API_NESTED_CREATE_VM) { guest_handle_nested_create_vm((struct api_call_1*)cmd, cpu); } else if (call == SYZOS_API_NESTED_LOAD_CODE) { guest_handle_nested_load_code((struct api_call_nested_load_code*)cmd, cpu); } else if (call == SYZOS_API_NESTED_VMLAUNCH) { guest_handle_nested_vmlaunch((struct api_call_1*)cmd, cpu); } else if (call == SYZOS_API_NESTED_VMRESUME) { guest_handle_nested_vmresume((struct api_call_1*)cmd, cpu); } else if (call == SYZOS_API_NESTED_INTEL_VMWRITE_MASK) { guest_handle_nested_intel_vmwrite_mask((struct api_call_5*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_VMCB_WRITE_MASK) { guest_handle_nested_amd_vmcb_write_mask((struct api_call_5*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_INVLPGA) { guest_handle_nested_amd_invlpga((struct api_call_2*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_STGI) { guest_handle_nested_amd_stgi(); } else if (call == SYZOS_API_NESTED_AMD_CLGI) { guest_handle_nested_amd_clgi(); } else if (call == SYZOS_API_NESTED_AMD_INJECT_EVENT) { guest_handle_nested_amd_inject_event((struct api_call_5*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_SET_INTERCEPT) { guest_handle_nested_amd_set_intercept((struct api_call_5*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_VMLOAD) { guest_handle_nested_amd_vmload((struct api_call_1*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_VMSAVE) { guest_handle_nested_amd_vmsave((struct api_call_1*)cmd, cpu); } addr += cmd->size; size -= cmd->size; }; guest_uexit((uint64_t)-1); } GUEST_CODE static noinline void guest_execute_code(uint8_t* insns, uint64_t size) { volatile void (*fn)() = (volatile void (*)())insns; fn(); } __attribute__((used)) GUEST_CODE static noinline void guest_uexit(uint64_t exit_code) { volatile uint64_t* ptr = (volatile uint64_t*)X86_SYZOS_ADDR_UEXIT; *ptr = exit_code; } GUEST_CODE static noinline void guest_handle_cpuid(uint32_t eax, uint32_t ecx) { asm volatile( "cpuid\n" : : "a"(eax), "c"(ecx) : "rbx", "rdx"); } GUEST_CODE static noinline void wrmsr(uint64_t reg, uint64_t val) { asm volatile( "wrmsr" : : "c"(reg), "a"((uint32_t)val), "d"((uint32_t)(val >> 32)) : "memory"); } GUEST_CODE static noinline void guest_handle_wrmsr(uint64_t reg, uint64_t val) { wrmsr(reg, val); } GUEST_CODE static noinline uint64_t rdmsr(uint64_t msr_id) { uint32_t low = 0, high = 0; asm volatile("rdmsr" : "=a"(low), "=d"(high) : "c"(msr_id)); return ((uint64_t)high << 32) | low; } GUEST_CODE static noinline void guest_handle_rdmsr(uint64_t reg) { (void)rdmsr(reg); } GUEST_CODE static noinline void guest_handle_wr_crn(struct api_call_2* cmd) { uint64_t value = cmd->args[1]; volatile uint64_t reg = cmd->args[0]; if (reg == 0) { asm volatile("movq %0, %%cr0" ::"r"(value) : "memory"); return; } if (reg == 2) { asm volatile("movq %0, %%cr2" ::"r"(value) : "memory"); return; } if (reg == 3) { asm volatile("movq %0, %%cr3" ::"r"(value) : "memory"); return; } if (reg == 4) { asm volatile("movq %0, %%cr4" ::"r"(value) : "memory"); return; } if (reg == 8) { asm volatile("movq %0, %%cr8" ::"r"(value) : "memory"); return; } } GUEST_CODE static noinline void guest_handle_wr_drn(struct api_call_2* cmd) { uint64_t value = cmd->args[1]; volatile uint64_t reg = cmd->args[0]; if (reg == 0) { asm volatile("movq %0, %%dr0" ::"r"(value) : "memory"); return; } if (reg == 1) { asm volatile("movq %0, %%dr1" ::"r"(value) : "memory"); return; } if (reg == 2) { asm volatile("movq %0, %%dr2" ::"r"(value) : "memory"); return; } if (reg == 3) { asm volatile("movq %0, %%dr3" ::"r"(value) : "memory"); return; } if (reg == 4) { asm volatile("movq %0, %%dr4" ::"r"(value) : "memory"); return; } if (reg == 5) { asm volatile("movq %0, %%dr5" ::"r"(value) : "memory"); return; } if (reg == 6) { asm volatile("movq %0, %%dr6" ::"r"(value) : "memory"); return; } if (reg == 7) { asm volatile("movq %0, %%dr7" ::"r"(value) : "memory"); return; } } GUEST_CODE static noinline void guest_handle_in_dx(struct api_call_2* cmd) { uint16_t port = cmd->args[0]; volatile int size = cmd->args[1]; if (size == 1) { uint8_t unused; asm volatile("inb %1, %0" : "=a"(unused) : "d"(port)); return; } if (size == 2) { uint16_t unused; asm volatile("inw %1, %0" : "=a"(unused) : "d"(port)); return; } if (size == 4) { uint32_t unused; asm volatile("inl %1, %0" : "=a"(unused) : "d"(port)); } return; } GUEST_CODE static noinline void guest_handle_out_dx(struct api_call_3* cmd) { uint16_t port = cmd->args[0]; volatile int size = cmd->args[1]; uint32_t data = (uint32_t)cmd->args[2]; if (size == 1) { asm volatile("outb %b0, %w1" ::"a"(data), "d"(port)); return; } if (size == 2) { asm volatile("outw %w0, %w1" ::"a"(data), "d"(port)); return; } if (size == 4) { asm volatile("outl %k0, %w1" ::"a"(data), "d"(port)); return; } } struct idt_entry_64 { uint16_t offset_low; uint16_t selector; uint8_t ist; uint8_t type_attr; uint16_t offset_mid; uint32_t offset_high; uint32_t reserved; } __attribute__((packed)); GUEST_CODE static void set_idt_gate(uint8_t vector, uint64_t handler) { volatile struct idt_entry_64* idt = (volatile struct idt_entry_64*)(X86_SYZOS_ADDR_VAR_IDT); volatile struct idt_entry_64* idt_entry = &idt[vector]; idt_entry->offset_low = (uint16_t)handler; idt_entry->offset_mid = (uint16_t)(handler >> 16); idt_entry->offset_high = (uint32_t)(handler >> 32); idt_entry->selector = X86_SYZOS_SEL_CODE; idt_entry->type_attr = 0x8E; idt_entry->ist = 0; idt_entry->reserved = 0; } GUEST_CODE static noinline void guest_handle_set_irq_handler(struct api_call_2* cmd) { uint8_t vector = (uint8_t)cmd->args[0]; uint64_t type = cmd->args[1]; volatile uint64_t handler_addr = 0; if (type == 1) handler_addr = executor_fn_guest_addr(dummy_null_handler); else if (type == 2) handler_addr = executor_fn_guest_addr(uexit_irq_handler); set_idt_gate(vector, handler_addr); } GUEST_CODE static cpu_vendor_id get_cpu_vendor(void) { uint32_t ebx, eax = 0; asm volatile( "cpuid" : "+a"(eax), "=b"(ebx) : : "ecx", "edx"); if (ebx == 0x756e6547) { return CPU_VENDOR_INTEL; } else if (ebx == 0x68747541) { return CPU_VENDOR_AMD; } else { guest_uexit(UEXIT_ASSERT); return CPU_VENDOR_INTEL; } } GUEST_CODE static inline uint64_t read_cr0(void) { uint64_t val; asm volatile("mov %%cr0, %0" : "=r"(val)); return val; } GUEST_CODE static inline uint64_t read_cr3(void) { uint64_t val; asm volatile("mov %%cr3, %0" : "=r"(val)); return val; } GUEST_CODE static inline uint64_t read_cr4(void) { uint64_t val; asm volatile("mov %%cr4, %0" : "=r"(val)); return val; } GUEST_CODE static inline void write_cr4(uint64_t val) { asm volatile("mov %0, %%cr4" : : "r"(val)); } GUEST_CODE static noinline void vmwrite(uint64_t field, uint64_t value) { uint8_t error = 0; asm volatile("vmwrite %%rax, %%rbx; setna %0" : "=q"(error) : "a"(value), "b"(field) : "cc", "memory"); if (error) guest_uexit(UEXIT_ASSERT); } GUEST_CODE static noinline uint64_t vmread(uint64_t field) { uint64_t value; asm volatile("vmread %%rbx, %%rax" : "=a"(value) : "b"(field) : "cc"); return value; } GUEST_CODE static inline void nested_vmptrld(uint64_t cpu_id, uint64_t vm_id) { uint64_t vmcs_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint8_t error = 0; asm volatile("vmptrld %1; setna %0" : "=q"(error) : "m"(vmcs_addr) : "memory", "cc"); if (error) guest_uexit(0xE2BAD2); } GUEST_CODE static noinline void vmcb_write16(uint64_t vmcb, uint16_t offset, uint16_t val) { *((volatile uint16_t*)(vmcb + offset)) = val; } GUEST_CODE static noinline void vmcb_write32(uint64_t vmcb, uint16_t offset, uint32_t val) { *((volatile uint32_t*)(vmcb + offset)) = val; } GUEST_CODE static noinline uint32_t vmcb_read32(uint64_t vmcb, uint16_t offset) { return *((volatile uint32_t*)(vmcb + offset)); } GUEST_CODE static noinline void vmcb_write64(uint64_t vmcb, uint16_t offset, uint64_t val) { *((volatile uint64_t*)(vmcb + offset)) = val; } GUEST_CODE static noinline uint64_t vmcb_read64(volatile uint8_t* vmcb, uint16_t offset) { return *((volatile uint64_t*)(vmcb + offset)); } GUEST_CODE static void guest_memset(void* s, uint8_t c, int size) { volatile uint8_t* p = (volatile uint8_t*)s; for (int i = 0; i < size; i++) p[i] = c; } GUEST_CODE static void guest_memcpy(void* dst, void* src, int size) { volatile uint8_t* d = (volatile uint8_t*)dst; volatile uint8_t* s = (volatile uint8_t*)src; for (int i = 0; i < size; i++) d[i] = s[i]; } GUEST_CODE static noinline void nested_enable_vmx_intel(uint64_t cpu_id) { uint64_t vmxon_addr = X86_SYZOS_ADDR_VM_ARCH_SPECIFIC(cpu_id); uint64_t cr4 = read_cr4(); cr4 |= X86_CR4_VMXE; write_cr4(cr4); uint64_t feature_control = rdmsr(X86_MSR_IA32_FEATURE_CONTROL); if ((feature_control & 1) == 0) { feature_control |= 0b101; asm volatile("wrmsr" : : "d"(0x0), "c"(X86_MSR_IA32_FEATURE_CONTROL), "A"(feature_control)); } *(uint32_t*)vmxon_addr = rdmsr(X86_MSR_IA32_VMX_BASIC); uint8_t error; asm volatile("vmxon %1; setna %0" : "=q"(error) : "m"(vmxon_addr) : "memory", "cc"); if (error) { guest_uexit(0xE2BAD0); return; } } GUEST_CODE static noinline void nested_enable_svm_amd(uint64_t cpu_id) { uint64_t hsave_addr = X86_SYZOS_ADDR_VM_ARCH_SPECIFIC(cpu_id); uint64_t efer = rdmsr(X86_MSR_IA32_EFER); efer |= X86_EFER_SVME; wrmsr(X86_MSR_IA32_EFER, efer); wrmsr(X86_MSR_VM_HSAVE_PA, hsave_addr); } GUEST_CODE static noinline void guest_handle_enable_nested(struct api_call_1* cmd, uint64_t cpu_id) { if (get_cpu_vendor() == CPU_VENDOR_INTEL) { nested_enable_vmx_intel(cpu_id); } else { nested_enable_svm_amd(cpu_id); } } GUEST_CODE static noinline void setup_l2_page_tables(cpu_vendor_id vendor, uint64_t cpu_id, uint64_t vm_id) { uint64_t l2_pml4_addr = X86_SYZOS_ADDR_VM_PGTABLE(cpu_id, vm_id); uint64_t l2_pdpt_addr = l2_pml4_addr + KVM_PAGE_SIZE; uint64_t l2_pd_addr = l2_pml4_addr + 2 * KVM_PAGE_SIZE; uint64_t l2_pt_addr = l2_pml4_addr + 3 * KVM_PAGE_SIZE; volatile uint64_t* pml4 = (volatile uint64_t*)l2_pml4_addr; volatile uint64_t* pdpt = (volatile uint64_t*)l2_pdpt_addr; volatile uint64_t* pd = (volatile uint64_t*)l2_pd_addr; volatile uint64_t* pt = (volatile uint64_t*)l2_pt_addr; guest_memset((void*)l2_pml4_addr, 0, KVM_PAGE_SIZE); guest_memset((void*)l2_pdpt_addr, 0, KVM_PAGE_SIZE); guest_memset((void*)l2_pd_addr, 0, KVM_PAGE_SIZE); guest_memset((void*)l2_pt_addr, 0, KVM_PAGE_SIZE); guest_memset((void*)X86_SYZOS_ADDR_MSR_BITMAP(cpu_id, vm_id), 0, KVM_PAGE_SIZE); uint64_t flags = X86_PDE64_PRESENT | X86_PDE64_RW | X86_PDE64_USER; pml4[0] = l2_pdpt_addr | flags; pdpt[0] = l2_pd_addr | flags; pd[0] = l2_pt_addr | flags; uint64_t pt_flags = flags; if (vendor == CPU_VENDOR_INTEL) { pt_flags |= EPT_MEMTYPE_WB | EPT_ACCESSED | EPT_DIRTY; } else { pt_flags |= X86_PDE64_ACCESSED | X86_PDE64_DIRTY; } for (int i = 0; i < 512; i++) pt[i] = (i * KVM_PAGE_SIZE) | pt_flags; } GUEST_CODE static noinline void init_vmcs_control_fields(uint64_t cpu_id, uint64_t vm_id) { uint64_t vmx_msr = rdmsr(X86_MSR_IA32_VMX_TRUE_PINBASED_CTLS); vmwrite(VMCS_PIN_BASED_VM_EXEC_CONTROL, (uint32_t)vmx_msr); vmx_msr = (uint32_t)rdmsr(X86_MSR_IA32_VMX_PROCBASED_CTLS2); vmx_msr |= SECONDARY_EXEC_ENABLE_EPT | SECONDARY_EXEC_ENABLE_RDTSCP; vmwrite(VMCS_SECONDARY_VM_EXEC_CONTROL, vmx_msr); vmx_msr = rdmsr(X86_MSR_IA32_VMX_TRUE_PROCBASED_CTLS); vmx_msr |= CPU_BASED_ACTIVATE_SECONDARY_CONTROLS; vmx_msr |= CPU_BASED_HLT_EXITING | CPU_BASED_RDTSC_EXITING; vmwrite(VMCS_CPU_BASED_VM_EXEC_CONTROL, (uint32_t)vmx_msr); vmx_msr = rdmsr(X86_MSR_IA32_VMX_TRUE_EXIT_CTLS); vmwrite(VMCS_VM_EXIT_CONTROLS, (uint32_t)vmx_msr | VM_EXIT_HOST_ADDR_SPACE_SIZE); vmx_msr = rdmsr(X86_MSR_IA32_VMX_TRUE_ENTRY_CTLS); vmwrite(VMCS_VM_ENTRY_CONTROLS, (uint32_t)vmx_msr | VM_ENTRY_IA32E_MODE); uint64_t eptp = (X86_SYZOS_ADDR_VM_PGTABLE(cpu_id, vm_id) & ~0xFFF) | (6 << 0) | (3 << 3); vmwrite(VMCS_EPT_POINTER, eptp); vmwrite(VMCS_CR0_GUEST_HOST_MASK, 0); vmwrite(VMCS_CR4_GUEST_HOST_MASK, 0); vmwrite(VMCS_CR0_READ_SHADOW, read_cr0()); vmwrite(VMCS_CR4_READ_SHADOW, read_cr4()); vmwrite(VMCS_MSR_BITMAP, 0); vmwrite(VMCS_VMREAD_BITMAP, 0); vmwrite(VMCS_VMWRITE_BITMAP, 0); vmwrite(VMCS_EXCEPTION_BITMAP, (1 << 6)); vmwrite(VMCS_VIRTUAL_PROCESSOR_ID, 0); vmwrite(VMCS_POSTED_INTR_NV, 0); vmwrite(VMCS_PAGE_FAULT_ERROR_CODE_MASK, 0); vmwrite(VMCS_PAGE_FAULT_ERROR_CODE_MATCH, -1); vmwrite(VMCS_CR3_TARGET_COUNT, 0); vmwrite(VMCS_VM_EXIT_MSR_STORE_COUNT, 0); vmwrite(VMCS_VM_EXIT_MSR_LOAD_COUNT, 0); vmwrite(VMCS_VM_ENTRY_MSR_LOAD_COUNT, 0); vmwrite(VMCS_VM_ENTRY_INTR_INFO_FIELD, 0); vmwrite(VMCS_TPR_THRESHOLD, 0); } typedef enum { SYZOS_NESTED_EXIT_REASON_HLT = 1, SYZOS_NESTED_EXIT_REASON_INVD = 2, SYZOS_NESTED_EXIT_REASON_CPUID = 3, SYZOS_NESTED_EXIT_REASON_RDTSC = 4, SYZOS_NESTED_EXIT_REASON_RDTSCP = 5, SYZOS_NESTED_EXIT_REASON_UNKNOWN = 0xFF, } syz_nested_exit_reason; GUEST_CODE static void guest_uexit_l2(uint64_t exit_reason, syz_nested_exit_reason mapped_reason, cpu_vendor_id vendor) { if (mapped_reason != SYZOS_NESTED_EXIT_REASON_UNKNOWN) { guest_uexit(0xe2e20000 | mapped_reason); } else if (vendor == CPU_VENDOR_INTEL) { guest_uexit(0xe2110000 | exit_reason); } else { guest_uexit(0xe2aa0000 | exit_reason); } } #define EXIT_REASON_CPUID 0xa #define EXIT_REASON_HLT 0xc #define EXIT_REASON_INVD 0xd #define EXIT_REASON_RDTSC 0x10 #define EXIT_REASON_RDTSCP 0x33 GUEST_CODE static syz_nested_exit_reason map_intel_exit_reason(uint64_t basic_reason) { volatile uint64_t reason = basic_reason; if (reason == EXIT_REASON_HLT) return SYZOS_NESTED_EXIT_REASON_HLT; if (reason == EXIT_REASON_INVD) return SYZOS_NESTED_EXIT_REASON_INVD; if (reason == EXIT_REASON_CPUID) return SYZOS_NESTED_EXIT_REASON_CPUID; if (reason == EXIT_REASON_RDTSC) return SYZOS_NESTED_EXIT_REASON_RDTSC; if (reason == EXIT_REASON_RDTSCP) return SYZOS_NESTED_EXIT_REASON_RDTSCP; return SYZOS_NESTED_EXIT_REASON_UNKNOWN; } GUEST_CODE static void advance_l2_rip_intel(uint64_t basic_reason) { volatile uint64_t reason = basic_reason; uint64_t rip = vmread(VMCS_GUEST_RIP); if ((reason == EXIT_REASON_INVD) || (reason == EXIT_REASON_CPUID) || (reason == EXIT_REASON_RDTSC)) { rip += 2; } else if (reason == EXIT_REASON_RDTSCP) { rip += 3; } vmwrite(VMCS_GUEST_RIP, rip); } __attribute__((used)) GUEST_CODE static void nested_vm_exit_handler_intel(uint64_t exit_reason, struct l2_guest_regs* regs) { uint64_t basic_reason = exit_reason & 0xFFFF; syz_nested_exit_reason mapped_reason = map_intel_exit_reason(basic_reason); guest_uexit_l2(exit_reason, mapped_reason, CPU_VENDOR_INTEL); advance_l2_rip_intel(basic_reason); } extern char after_vmentry_label; __attribute__((naked)) GUEST_CODE static void nested_vm_exit_handler_intel_asm(void) { asm volatile(R"( push %%rax push %%rbx push %%rcx push %%rdx push %%rsi push %%rdi push %%rbp push %%r8 push %%r9 push %%r10 push %%r11 push %%r12 push %%r13 push %%r14 push %%r15 mov %%rsp, %%rsi mov %[vm_exit_reason], %%rbx vmread %%rbx, %%rdi call nested_vm_exit_handler_intel add %[stack_cleanup_size], %%rsp jmp after_vmentry_label )" : : [stack_cleanup_size] "i"(sizeof(struct l2_guest_regs)), [vm_exit_reason] "i"(VMCS_VM_EXIT_REASON) : "memory", "cc", "rbx", "rdi", "rsi"); } #define VMEXIT_RDTSC 0x6e #define VMEXIT_CPUID 0x72 #define VMEXIT_INVD 0x76 #define VMEXIT_HLT 0x78 #define VMEXIT_RDTSCP 0x87 GUEST_CODE static syz_nested_exit_reason map_amd_exit_reason(uint64_t basic_reason) { volatile uint64_t reason = basic_reason; if (reason == VMEXIT_HLT) return SYZOS_NESTED_EXIT_REASON_HLT; if (reason == VMEXIT_INVD) return SYZOS_NESTED_EXIT_REASON_INVD; if (reason == VMEXIT_CPUID) return SYZOS_NESTED_EXIT_REASON_CPUID; if (reason == VMEXIT_RDTSC) return SYZOS_NESTED_EXIT_REASON_RDTSC; if (reason == VMEXIT_RDTSCP) return SYZOS_NESTED_EXIT_REASON_RDTSCP; return SYZOS_NESTED_EXIT_REASON_UNKNOWN; } GUEST_CODE static void advance_l2_rip_amd(uint64_t basic_reason, uint64_t cpu_id, uint64_t vm_id) { volatile uint64_t reason = basic_reason; uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint64_t rip = vmcb_read64((volatile uint8_t*)vmcb_addr, VMCB_GUEST_RIP); if ((reason == VMEXIT_INVD) || (reason == VMEXIT_CPUID) || (reason == VMEXIT_RDTSC)) { rip += 2; } else if (reason == VMEXIT_RDTSCP) { rip += 3; } vmcb_write64(vmcb_addr, VMCB_GUEST_RIP, rip); } __attribute__((used)) GUEST_CODE static void nested_vm_exit_handler_amd(uint64_t exit_reason, uint64_t cpu_id, uint64_t vm_id) { volatile uint64_t basic_reason = exit_reason & 0xFFFF; syz_nested_exit_reason mapped_reason = map_amd_exit_reason(basic_reason); guest_uexit_l2(exit_reason, mapped_reason, CPU_VENDOR_AMD); advance_l2_rip_amd(basic_reason, cpu_id, vm_id); } GUEST_CODE static noinline void init_vmcs_host_state(void) { vmwrite(VMCS_HOST_CS_SELECTOR, X86_SYZOS_SEL_CODE); vmwrite(VMCS_HOST_DS_SELECTOR, X86_SYZOS_SEL_DATA); vmwrite(VMCS_HOST_ES_SELECTOR, X86_SYZOS_SEL_DATA); vmwrite(VMCS_HOST_SS_SELECTOR, X86_SYZOS_SEL_DATA); vmwrite(VMCS_HOST_FS_SELECTOR, X86_SYZOS_SEL_DATA); vmwrite(VMCS_HOST_GS_SELECTOR, X86_SYZOS_SEL_DATA); vmwrite(VMCS_HOST_TR_SELECTOR, X86_SYZOS_SEL_TSS64); vmwrite(VMCS_HOST_TR_BASE, 0); vmwrite(VMCS_HOST_GDTR_BASE, X86_SYZOS_ADDR_GDT); vmwrite(VMCS_HOST_IDTR_BASE, X86_SYZOS_ADDR_VAR_IDT); vmwrite(VMCS_HOST_FS_BASE, rdmsr(X86_MSR_FS_BASE)); vmwrite(VMCS_HOST_GS_BASE, rdmsr(X86_MSR_GS_BASE)); uint64_t tmpreg = 0; asm volatile("mov %%rsp, %0" : "=r"(tmpreg)); vmwrite(VMCS_HOST_RSP, tmpreg); vmwrite(VMCS_HOST_RIP, (uintptr_t)nested_vm_exit_handler_intel_asm); vmwrite(VMCS_HOST_CR0, read_cr0()); vmwrite(VMCS_HOST_CR3, read_cr3()); vmwrite(VMCS_HOST_CR4, read_cr4()); vmwrite(VMCS_HOST_IA32_PAT, rdmsr(X86_MSR_IA32_CR_PAT)); vmwrite(VMCS_HOST_IA32_EFER, rdmsr(X86_MSR_IA32_EFER)); vmwrite(VMCS_HOST_IA32_PERF_GLOBAL_CTRL, rdmsr(X86_MSR_CORE_PERF_GLOBAL_CTRL)); vmwrite(VMCS_HOST_IA32_SYSENTER_CS, rdmsr(X86_MSR_IA32_SYSENTER_CS)); vmwrite(VMCS_HOST_IA32_SYSENTER_ESP, rdmsr(X86_MSR_IA32_SYSENTER_ESP)); vmwrite(VMCS_HOST_IA32_SYSENTER_EIP, rdmsr(X86_MSR_IA32_SYSENTER_EIP)); } #define COPY_VMCS_FIELD(GUEST_FIELD,HOST_FIELD) vmwrite(GUEST_FIELD, vmread(HOST_FIELD)) #define SETUP_L2_SEGMENT(SEG,SELECTOR,BASE,LIMIT,AR) vmwrite(VMCS_GUEST_ ##SEG ##_SELECTOR, SELECTOR); vmwrite(VMCS_GUEST_ ##SEG ##_BASE, BASE); vmwrite(VMCS_GUEST_ ##SEG ##_LIMIT, LIMIT); vmwrite(VMCS_GUEST_ ##SEG ##_ACCESS_RIGHTS, AR); GUEST_CODE static noinline void init_vmcs_guest_state(uint64_t cpu_id, uint64_t vm_id) { uint64_t l2_code_addr = X86_SYZOS_ADDR_VM_CODE(cpu_id, vm_id); uint64_t l2_stack_addr = X86_SYZOS_ADDR_VM_STACK(cpu_id, vm_id); SETUP_L2_SEGMENT(CS, vmread(VMCS_HOST_CS_SELECTOR), 0, 0xFFFFFFFF, VMX_AR_64BIT_CODE); SETUP_L2_SEGMENT(DS, vmread(VMCS_HOST_DS_SELECTOR), 0, 0xFFFFFFFF, VMX_AR_64BIT_DATA_STACK); SETUP_L2_SEGMENT(ES, vmread(VMCS_HOST_ES_SELECTOR), 0, 0xFFFFFFFF, VMX_AR_64BIT_DATA_STACK); SETUP_L2_SEGMENT(SS, vmread(VMCS_HOST_SS_SELECTOR), 0, 0xFFFFFFFF, VMX_AR_64BIT_DATA_STACK); SETUP_L2_SEGMENT(FS, vmread(VMCS_HOST_FS_SELECTOR), vmread(VMCS_HOST_FS_BASE), 0xFFFFFFFF, VMX_AR_64BIT_DATA_STACK); SETUP_L2_SEGMENT(GS, vmread(VMCS_HOST_GS_SELECTOR), vmread(VMCS_HOST_GS_BASE), 0xFFFFFFFF, VMX_AR_64BIT_DATA_STACK); SETUP_L2_SEGMENT(TR, vmread(VMCS_HOST_TR_SELECTOR), vmread(VMCS_HOST_TR_BASE), 0x67, VMX_AR_TSS_BUSY); SETUP_L2_SEGMENT(LDTR, 0, 0, 0, VMX_AR_LDTR_UNUSABLE); vmwrite(VMCS_GUEST_CR0, vmread(VMCS_HOST_CR0)); vmwrite(VMCS_GUEST_CR3, vmread(VMCS_HOST_CR3)); vmwrite(VMCS_GUEST_CR4, vmread(VMCS_HOST_CR4)); vmwrite(VMCS_GUEST_RIP, l2_code_addr); vmwrite(VMCS_GUEST_RSP, l2_stack_addr + KVM_PAGE_SIZE - 8); vmwrite(VMCS_GUEST_RFLAGS, RFLAGS_1_BIT); vmwrite(VMCS_GUEST_DR7, 0x400); COPY_VMCS_FIELD(VMCS_GUEST_IA32_EFER, VMCS_HOST_IA32_EFER); COPY_VMCS_FIELD(VMCS_GUEST_IA32_PAT, VMCS_HOST_IA32_PAT); COPY_VMCS_FIELD(VMCS_GUEST_IA32_PERF_GLOBAL_CTRL, VMCS_HOST_IA32_PERF_GLOBAL_CTRL); COPY_VMCS_FIELD(VMCS_GUEST_SYSENTER_CS, VMCS_HOST_IA32_SYSENTER_CS); COPY_VMCS_FIELD(VMCS_GUEST_SYSENTER_ESP, VMCS_HOST_IA32_SYSENTER_ESP); COPY_VMCS_FIELD(VMCS_GUEST_SYSENTER_EIP, VMCS_HOST_IA32_SYSENTER_EIP); vmwrite(VMCS_GUEST_IA32_DEBUGCTL, 0); vmwrite(VMCS_GUEST_GDTR_BASE, vmread(VMCS_HOST_GDTR_BASE)); vmwrite(VMCS_GUEST_GDTR_LIMIT, 0xffff); vmwrite(VMCS_GUEST_IDTR_BASE, vmread(VMCS_HOST_IDTR_BASE)); vmwrite(VMCS_GUEST_IDTR_LIMIT, 0xffff); vmwrite(VMCS_LINK_POINTER, 0xffffffffffffffff); vmwrite(VMCS_GUEST_ACTIVITY_STATE, 0); vmwrite(VMCS_GUEST_INTERRUPTIBILITY_INFO, 0); vmwrite(VMCS_GUEST_PENDING_DBG_EXCEPTIONS, 0); vmwrite(VMCS_VMX_PREEMPTION_TIMER_VALUE, 0); vmwrite(VMCS_GUEST_INTR_STATUS, 0); vmwrite(VMCS_GUEST_PML_INDEX, 0); } GUEST_CODE static noinline void nested_create_vm_intel(struct api_call_1* cmd, uint64_t cpu_id) { uint64_t vm_id = cmd->arg; uint64_t vmcs_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint8_t error = 0; *(uint32_t*)vmcs_addr = rdmsr(X86_MSR_IA32_VMX_BASIC); asm volatile("vmclear %1; setna %0" : "=q"(error) : "m"(vmcs_addr) : "memory", "cc"); if (error) { guest_uexit(0xE2BAD1); return; } nested_vmptrld(cpu_id, vm_id); setup_l2_page_tables(CPU_VENDOR_INTEL, cpu_id, vm_id); init_vmcs_control_fields(cpu_id, vm_id); init_vmcs_host_state(); init_vmcs_guest_state(cpu_id, vm_id); } #define SETUP_L2_SEGMENT_SVM(VMBC_PTR,SEG_NAME,SELECTOR,BASE,LIMIT,ATTR) vmcb_write16(VMBC_PTR, VMCB_GUEST_ ##SEG_NAME ##_SEL, SELECTOR); vmcb_write16(VMBC_PTR, VMCB_GUEST_ ##SEG_NAME ##_ATTR, ATTR); vmcb_write32(VMBC_PTR, VMCB_GUEST_ ##SEG_NAME ##_LIM, LIMIT); vmcb_write64(VMBC_PTR, VMCB_GUEST_ ##SEG_NAME ##_BASE, BASE); GUEST_CODE static noinline void init_vmcb_guest_state(uint64_t cpu_id, uint64_t vm_id) { uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint64_t l2_code_addr = X86_SYZOS_ADDR_VM_CODE(cpu_id, vm_id); uint64_t l2_stack_addr = X86_SYZOS_ADDR_VM_STACK(cpu_id, vm_id); uint64_t npt_pml4_addr = X86_SYZOS_ADDR_VM_PGTABLE(cpu_id, vm_id); SETUP_L2_SEGMENT_SVM(vmcb_addr, CS, X86_SYZOS_SEL_CODE, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_CODE); SETUP_L2_SEGMENT_SVM(vmcb_addr, DS, X86_SYZOS_SEL_DATA, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_DATA); SETUP_L2_SEGMENT_SVM(vmcb_addr, ES, X86_SYZOS_SEL_DATA, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_DATA); SETUP_L2_SEGMENT_SVM(vmcb_addr, SS, X86_SYZOS_SEL_DATA, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_DATA); SETUP_L2_SEGMENT_SVM(vmcb_addr, FS, X86_SYZOS_SEL_DATA, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_DATA); SETUP_L2_SEGMENT_SVM(vmcb_addr, GS, X86_SYZOS_SEL_DATA, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_DATA); SETUP_L2_SEGMENT_SVM(vmcb_addr, TR, X86_SYZOS_SEL_TSS64, X86_SYZOS_ADDR_VAR_TSS, 0x67, VMX_AR_TSS_AVAILABLE); SETUP_L2_SEGMENT_SVM(vmcb_addr, LDTR, 0, 0, 0, SVM_ATTR_LDTR_UNUSABLE); uint64_t efer = rdmsr(X86_MSR_IA32_EFER); vmcb_write64(vmcb_addr, VMCB_GUEST_CR0, read_cr0() | X86_CR0_WP); vmcb_write64(vmcb_addr, VMCB_GUEST_CR3, read_cr3()); vmcb_write64(vmcb_addr, VMCB_GUEST_CR4, read_cr4()); vmcb_write64(vmcb_addr, VMCB_GUEST_RIP, l2_code_addr); vmcb_write64(vmcb_addr, VMCB_GUEST_RSP, l2_stack_addr + KVM_PAGE_SIZE - 8); vmcb_write64(vmcb_addr, VMCB_GUEST_RFLAGS, RFLAGS_1_BIT); vmcb_write64(vmcb_addr, VMCB_GUEST_DEBUGCTL, 0); vmcb_write64(vmcb_addr, VMCB_GUEST_DR6, 0x0); vmcb_write64(vmcb_addr, VMCB_GUEST_DR7, 0x0); vmcb_write64(vmcb_addr, VMCB_GUEST_EFER, efer & ~X86_EFER_SCE); vmcb_write64(vmcb_addr, VMCB_GUEST_PAT, rdmsr(X86_MSR_IA32_CR_PAT)); struct { uint16_t limit; uint64_t base; } __attribute__((packed)) gdtr, idtr; asm volatile("sgdt %0" : "=m"(gdtr)); asm volatile("sidt %0" : "=m"(idtr)); vmcb_write64(vmcb_addr, VMCB_GUEST_GDTR_BASE, gdtr.base); vmcb_write32(vmcb_addr, VMCB_GUEST_GDTR_LIM, gdtr.limit); vmcb_write64(vmcb_addr, VMCB_GUEST_IDTR_BASE, idtr.base); vmcb_write32(vmcb_addr, VMCB_GUEST_IDTR_LIM, idtr.limit); vmcb_write32(vmcb_addr, VMCB_CTRL_INTERCEPT_VEC3, VMCB_CTRL_INTERCEPT_VEC3_ALL); vmcb_write32(vmcb_addr, VMCB_CTRL_INTERCEPT_VEC4, VMCB_CTRL_INTERCEPT_VEC4_ALL); vmcb_write64(vmcb_addr, VMCB_CTRL_NP_ENABLE, (1 << VMCB_CTRL_NPT_ENABLE_BIT)); uint64_t npt_pointer = (npt_pml4_addr & ~0xFFF); vmcb_write64(vmcb_addr, VMCB_CTRL_N_CR3, npt_pointer); vmcb_write32(vmcb_addr, VMCB_CTRL_ASID, 1); } GUEST_CODE static noinline void nested_create_vm_amd(struct api_call_1* cmd, uint64_t cpu_id) { uint64_t vm_id = cmd->arg; uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); guest_memset((void*)vmcb_addr, 0, KVM_PAGE_SIZE); guest_memset((void*)X86_SYZOS_ADDR_VM_ARCH_SPECIFIC(cpu_id), 0, KVM_PAGE_SIZE); setup_l2_page_tables(CPU_VENDOR_AMD, cpu_id, vm_id); init_vmcb_guest_state(cpu_id, vm_id); } GUEST_CODE static noinline void guest_handle_nested_create_vm(struct api_call_1* cmd, uint64_t cpu_id) { if (get_cpu_vendor() == CPU_VENDOR_INTEL) { nested_create_vm_intel(cmd, cpu_id); } else { nested_create_vm_amd(cmd, cpu_id); } } GUEST_CODE static noinline void guest_handle_nested_load_code(struct api_call_nested_load_code* cmd, uint64_t cpu_id) { uint64_t vm_id = cmd->vm_id; uint64_t l2_code_addr = X86_SYZOS_ADDR_VM_CODE(cpu_id, vm_id); uint64_t l2_stack_addr = X86_SYZOS_ADDR_VM_STACK(cpu_id, vm_id); uint64_t l2_code_size = cmd->header.size - sizeof(struct api_call_header) - sizeof(uint64_t); if (l2_code_size > KVM_PAGE_SIZE) l2_code_size = KVM_PAGE_SIZE; guest_memcpy((void*)l2_code_addr, (void*)cmd->insns, l2_code_size); if (get_cpu_vendor() == CPU_VENDOR_INTEL) { nested_vmptrld(cpu_id, vm_id); vmwrite(VMCS_GUEST_RIP, l2_code_addr); vmwrite(VMCS_GUEST_RSP, l2_stack_addr + KVM_PAGE_SIZE - 8); } else { vmcb_write64(X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id), VMCB_GUEST_RIP, l2_code_addr); vmcb_write64(X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id), VMCB_GUEST_RSP, l2_stack_addr + KVM_PAGE_SIZE - 8); } } GUEST_CODE static noinline __optnone void guest_handle_nested_vmentry_intel(uint64_t vm_id, uint64_t cpu_id, bool is_launch) { uint64_t vmx_error_code = 0; uint8_t fail_flag = 0; nested_vmptrld(cpu_id, vm_id); if (is_launch) { asm volatile(R"( vmlaunch setc %%al setz %%bl or %%bl, %%al)" : "=a"(fail_flag) : : "rbx", "cc", "memory"); } else { asm volatile(R"( vmresume setc %%al setz %%bl or %%bl, %%al)" : "=a"(fail_flag) : : "rbx", "cc", "memory"); } asm volatile(".globl after_vmentry_label\nafter_vmentry_label:"); if (fail_flag) { vmx_error_code = vmread(VMCS_VM_INSTRUCTION_ERROR); guest_uexit(0xE2E10000 | (uint32_t)vmx_error_code); return; } } GUEST_CODE static noinline void guest_run_amd_vm(uint64_t cpu_id, uint64_t vm_id) { uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); volatile uint8_t* vmcb_ptr = (volatile uint8_t*)vmcb_addr; uint8_t fail_flag = 0; asm volatile( "mov %1, %%rax\n\t" "vmrun\n\t" "setc %0\n\t" : "=q"(fail_flag) : "m"(vmcb_addr) : "rax", "cc", "memory"); if (fail_flag) { guest_uexit(0xE2E10000 | 0xFFFF); return; } uint64_t exit_reason = vmcb_read64(vmcb_ptr, VMCB_EXIT_CODE); nested_vm_exit_handler_amd(exit_reason, cpu_id, vm_id); } GUEST_CODE static noinline void guest_handle_nested_vmlaunch(struct api_call_1* cmd, uint64_t cpu_id) { uint64_t vm_id = cmd->arg; if (get_cpu_vendor() == CPU_VENDOR_INTEL) { guest_handle_nested_vmentry_intel(vm_id, cpu_id, true); } else { guest_run_amd_vm(cpu_id, vm_id); } } GUEST_CODE static noinline void guest_handle_nested_vmresume(struct api_call_1* cmd, uint64_t cpu_id) { uint64_t vm_id = cmd->arg; if (get_cpu_vendor() == CPU_VENDOR_INTEL) { guest_handle_nested_vmentry_intel(vm_id, cpu_id, false); } else { guest_run_amd_vm(cpu_id, vm_id); } } GUEST_CODE static noinline void guest_handle_nested_intel_vmwrite_mask(struct api_call_5* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_INTEL) return; uint64_t vm_id = cmd->args[0]; nested_vmptrld(cpu_id, vm_id); uint64_t field = cmd->args[1]; uint64_t set_mask = cmd->args[2]; uint64_t unset_mask = cmd->args[3]; uint64_t flip_mask = cmd->args[4]; uint64_t current_value = vmread(field); uint64_t new_value = (current_value & ~unset_mask) | set_mask; new_value ^= flip_mask; vmwrite(field, new_value); } GUEST_CODE static noinline void guest_handle_nested_amd_vmcb_write_mask(struct api_call_5* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t vm_id = cmd->args[0]; uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint64_t offset = cmd->args[1]; uint64_t set_mask = cmd->args[2]; uint64_t unset_mask = cmd->args[3]; uint64_t flip_mask = cmd->args[4]; uint64_t current_value = vmcb_read64((volatile uint8_t*)vmcb_addr, offset); uint64_t new_value = (current_value & ~unset_mask) | set_mask; new_value ^= flip_mask; vmcb_write64(vmcb_addr, offset, new_value); } GUEST_CODE static noinline void guest_handle_nested_amd_invlpga(struct api_call_2* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t linear_addr = cmd->args[0]; uint32_t asid = (uint32_t)cmd->args[1]; asm volatile("invlpga" : : "a"(linear_addr), "c"(asid) : "memory"); } GUEST_CODE static noinline void guest_handle_nested_amd_stgi() { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; asm volatile("stgi" ::: "memory"); } GUEST_CODE static noinline void guest_handle_nested_amd_clgi() { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; asm volatile("clgi" ::: "memory"); } GUEST_CODE static noinline void guest_handle_nested_amd_inject_event(struct api_call_5* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t vm_id = cmd->args[0]; uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint64_t vector = cmd->args[1] & 0xFF; uint64_t type = cmd->args[2] & 0x7; uint64_t error_code = cmd->args[3] & 0xFFFFFFFF; uint64_t flags = cmd->args[4]; uint64_t event_inj = vector; event_inj |= (type << 8); if (flags & 2) event_inj |= (1ULL << 11); if (flags & 1) event_inj |= (1ULL << 31); event_inj |= (error_code << 32); vmcb_write64(vmcb_addr, 0x60, event_inj); } GUEST_CODE static noinline void guest_handle_nested_amd_set_intercept(struct api_call_5* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t vm_id = cmd->args[0]; uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint64_t offset = cmd->args[1]; uint64_t bit_mask = cmd->args[2]; uint64_t action = cmd->args[3]; uint32_t current = vmcb_read32(vmcb_addr, (uint16_t)offset); if (action == 1) current |= (uint32_t)bit_mask; else current &= ~((uint32_t)bit_mask); vmcb_write32(vmcb_addr, (uint16_t)offset, current); } GUEST_CODE static noinline void guest_handle_nested_amd_vmload(struct api_call_1* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t vm_id = cmd->arg; uint64_t vmcb_pa = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); asm volatile("vmload %%rax" ::"a"(vmcb_pa) : "memory"); } GUEST_CODE static noinline void guest_handle_nested_amd_vmsave(struct api_call_1* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t vm_id = cmd->arg; uint64_t vmcb_pa = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); asm volatile("vmsave %%rax" ::"a"(vmcb_pa) : "memory"); } const char kvm_asm16_cpl3[] = "\x0f\x20\xc0\x66\x83\xc8\x01\x0f\x22\xc0\xb8\xa0\x00\x0f\x00\xd8\xb8\x2b\x00\x8e\xd8\x8e\xc0\x8e\xe0\x8e\xe8\xbc\x00\x01\xc7\x06\x00\x01\x1d\xba\xc7\x06\x02\x01\x23\x00\xc7\x06\x04\x01\x00\x01\xc7\x06\x06\x01\x2b\x00\xcb"; const char kvm_asm32_paged[] = "\x0f\x20\xc0\x0d\x00\x00\x00\x80\x0f\x22\xc0"; const char kvm_asm32_vm86[] = "\x66\xb8\xb8\x00\x0f\x00\xd8\xea\x00\x00\x00\x00\xd0\x00"; const char kvm_asm32_paged_vm86[] = "\x0f\x20\xc0\x0d\x00\x00\x00\x80\x0f\x22\xc0\x66\xb8\xb8\x00\x0f\x00\xd8\xea\x00\x00\x00\x00\xd0\x00"; const char kvm_asm64_enable_long[] = "\x0f\x20\xc0\x0d\x00\x00\x00\x80\x0f\x22\xc0\xea\xde\xc0\xad\x0b\x50\x00\x48\xc7\xc0\xd8\x00\x00\x00\x0f\x00\xd8"; const char kvm_asm64_init_vm[] = 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const char kvm_asm64_vm_exit[] = "\x48\xc7\xc3\x00\x44\x00\x00\x0f\x78\xda\x48\xc7\xc3\x02\x44\x00\x00\x0f\x78\xd9\x48\xc7\xc0\x00\x64\x00\x00\x0f\x78\xc0\x48\xc7\xc3\x1e\x68\x00\x00\x0f\x78\xdb\xf4"; const char kvm_asm64_cpl3[] = "\x0f\x20\xc0\x0d\x00\x00\x00\x80\x0f\x22\xc0\xea\xde\xc0\xad\x0b\x50\x00\x48\xc7\xc0\xd8\x00\x00\x00\x0f\x00\xd8\x48\xc7\xc0\x6b\x00\x00\x00\x8e\xd8\x8e\xc0\x8e\xe0\x8e\xe8\x48\xc7\xc4\x80\x0f\x00\x00\x48\xc7\x04\x24\x1d\xba\x00\x00\x48\xc7\x44\x24\x04\x63\x00\x00\x00\x48\xc7\x44\x24\x08\x80\x0f\x00\x00\x48\xc7\x44\x24\x0c\x6b\x00\x00\x00\xcb"; #define KVM_SMI _IO(KVMIO, 0xb7) struct tss16 { uint16_t prev; uint16_t sp0; uint16_t ss0; uint16_t sp1; uint16_t ss1; uint16_t sp2; uint16_t ss2; uint16_t ip; uint16_t flags; uint16_t ax; uint16_t cx; uint16_t dx; uint16_t bx; uint16_t sp; uint16_t bp; uint16_t si; uint16_t di; uint16_t es; uint16_t cs; uint16_t ss; uint16_t ds; uint16_t ldt; } __attribute__((packed)); struct tss32 { uint16_t prev, prevh; uint32_t sp0; uint16_t ss0, ss0h; uint32_t sp1; uint16_t ss1, ss1h; uint32_t sp2; uint16_t ss2, ss2h; uint32_t cr3; uint32_t ip; uint32_t flags; uint32_t ax; uint32_t cx; uint32_t dx; uint32_t bx; uint32_t sp; uint32_t bp; uint32_t si; uint32_t di; uint16_t es, esh; uint16_t cs, csh; uint16_t ss, ssh; uint16_t ds, dsh; uint16_t fs, fsh; uint16_t gs, gsh; uint16_t ldt, ldth; uint16_t trace; uint16_t io_bitmap; } __attribute__((packed)); struct tss64 { uint32_t reserved0; uint64_t rsp[3]; uint64_t reserved1; uint64_t ist[7]; uint64_t reserved2; uint16_t reserved3; uint16_t io_bitmap; } __attribute__((packed)); static void fill_segment_descriptor(uint64_t* dt, uint64_t* lt, struct kvm_segment* seg) { uint16_t index = seg->selector >> 3; uint64_t limit = seg->g ? seg->limit >> 12 : seg->limit; uint64_t sd = (limit & 0xffff) | (seg->base & 0xffffff) << 16 | (uint64_t)seg->type << 40 | (uint64_t)seg->s << 44 | (uint64_t)seg->dpl << 45 | (uint64_t)seg->present << 47 | (limit & 0xf0000ULL) << 48 | (uint64_t)seg->avl << 52 | (uint64_t)seg->l << 53 | (uint64_t)seg->db << 54 | (uint64_t)seg->g << 55 | (seg->base & 0xff000000ULL) << 56; dt[index] = sd; lt[index] = sd; } static void fill_segment_descriptor_dword(uint64_t* dt, uint64_t* lt, struct kvm_segment* seg) { fill_segment_descriptor(dt, lt, seg); uint16_t index = seg->selector >> 3; dt[index + 1] = 0; lt[index + 1] = 0; } static void setup_syscall_msrs(int cpufd, uint16_t sel_cs, uint16_t sel_cs_cpl3) { char buf[sizeof(struct kvm_msrs) + 5 * sizeof(struct kvm_msr_entry)]; memset(buf, 0, sizeof(buf)); struct kvm_msrs* msrs = (struct kvm_msrs*)buf; struct kvm_msr_entry* entries = msrs->entries; msrs->nmsrs = 5; entries[0].index = X86_MSR_IA32_SYSENTER_CS; entries[0].data = sel_cs; entries[1].index = X86_MSR_IA32_SYSENTER_ESP; entries[1].data = X86_ADDR_STACK0; entries[2].index = X86_MSR_IA32_SYSENTER_EIP; entries[2].data = X86_ADDR_VAR_SYSEXIT; entries[3].index = X86_MSR_IA32_STAR; entries[3].data = ((uint64_t)sel_cs << 32) | ((uint64_t)sel_cs_cpl3 << 48); entries[4].index = X86_MSR_IA32_LSTAR; entries[4].data = X86_ADDR_VAR_SYSRET; ioctl(cpufd, KVM_SET_MSRS, msrs); } static void setup_32bit_idt(struct kvm_sregs* sregs, char* host_mem, uintptr_t guest_mem) { sregs->idt.base = guest_mem + X86_ADDR_VAR_IDT; sregs->idt.limit = 0x1ff; uint64_t* idt = (uint64_t*)(host_mem + sregs->idt.base); for (int i = 0; i < 32; i++) { struct kvm_segment gate; gate.selector = i << 3; switch (i % 6) { case 0: gate.type = 6; gate.base = X86_SEL_CS16; break; case 1: gate.type = 7; gate.base = X86_SEL_CS16; break; case 2: gate.type = 3; gate.base = X86_SEL_TGATE16; break; case 3: gate.type = 14; gate.base = X86_SEL_CS32; break; case 4: gate.type = 15; gate.base = X86_SEL_CS32; break; case 5: gate.type = 11; gate.base = X86_SEL_TGATE32; break; } gate.limit = guest_mem + X86_ADDR_VAR_USER_CODE2; gate.present = 1; gate.dpl = 0; gate.s = 0; gate.g = 0; gate.db = 0; gate.l = 0; gate.avl = 0; fill_segment_descriptor(idt, idt, &gate); } } static void setup_64bit_idt(struct kvm_sregs* sregs, char* host_mem, uintptr_t guest_mem) { sregs->idt.base = guest_mem + X86_ADDR_VAR_IDT; sregs->idt.limit = 0x1ff; uint64_t* idt = (uint64_t*)(host_mem + sregs->idt.base); for (int i = 0; i < 32; i++) { struct kvm_segment gate; gate.selector = (i * 2) << 3; gate.type = (i & 1) ? 14 : 15; gate.base = X86_SEL_CS64; gate.limit = guest_mem + X86_ADDR_VAR_USER_CODE2; gate.present = 1; gate.dpl = 0; gate.s = 0; gate.g = 0; gate.db = 0; gate.l = 0; gate.avl = 0; fill_segment_descriptor_dword(idt, idt, &gate); } } #define MEM_REGION_FLAG_USER_CODE (1 << 0) #define MEM_REGION_FLAG_DIRTY_LOG (1 << 1) #define MEM_REGION_FLAG_READONLY (1 << 2) #define MEM_REGION_FLAG_EXECUTOR_CODE (1 << 3) #define MEM_REGION_FLAG_GPA0 (1 << 5) #define MEM_REGION_FLAG_NO_HOST_MEM (1 << 6) struct mem_region { uint64_t gpa; int pages; uint32_t flags; }; static const struct mem_region syzos_mem_regions[] = { {X86_SYZOS_ADDR_ZERO, 48, MEM_REGION_FLAG_GPA0}, {X86_SYZOS_ADDR_SMRAM, 10, 0}, {X86_SYZOS_ADDR_EXIT, 1, MEM_REGION_FLAG_NO_HOST_MEM}, {X86_SYZOS_ADDR_DIRTY_PAGES, 2, MEM_REGION_FLAG_DIRTY_LOG}, {X86_SYZOS_ADDR_USER_CODE, KVM_MAX_VCPU, MEM_REGION_FLAG_READONLY | MEM_REGION_FLAG_USER_CODE}, {SYZOS_ADDR_EXECUTOR_CODE, 4, MEM_REGION_FLAG_READONLY | MEM_REGION_FLAG_EXECUTOR_CODE}, {X86_SYZOS_ADDR_SCRATCH_CODE, 1, 0}, {X86_SYZOS_ADDR_STACK_BOTTOM, 1, 0}, {X86_SYZOS_PER_VCPU_REGIONS_BASE, (KVM_MAX_VCPU * X86_SYZOS_L1_VCPU_REGION_SIZE) / KVM_PAGE_SIZE, 0}, {X86_SYZOS_ADDR_IOAPIC, 1, 0}, }; struct kvm_syz_vm { int vmfd; int next_cpu_id; void* host_mem; size_t total_pages; void* user_text; void* gpa0_mem; }; #define X86_NUM_IDT_ENTRIES 256 static void syzos_setup_idt(struct kvm_syz_vm* vm, struct kvm_sregs* sregs) { sregs->idt.base = X86_SYZOS_ADDR_VAR_IDT; sregs->idt.limit = (X86_NUM_IDT_ENTRIES * sizeof(struct idt_entry_64)) - 1; volatile struct idt_entry_64* idt = (volatile struct idt_entry_64*)((uint64_t)vm->host_mem + sregs->idt.base); uint64_t handler_addr = executor_fn_guest_addr(dummy_null_handler); for (int i = 0; i < X86_NUM_IDT_ENTRIES; i++) { idt[i].offset_low = (uint16_t)(handler_addr & 0xFFFF); idt[i].selector = X86_SYZOS_SEL_CODE; idt[i].ist = 0; idt[i].type_attr = 0x8E; idt[i].offset_mid = (uint16_t)((handler_addr >> 16) & 0xFFFF); idt[i].offset_high = (uint32_t)((handler_addr >> 32) & 0xFFFFFFFF); idt[i].reserved = 0; } } struct kvm_text { uintptr_t typ; const void* text; uintptr_t size; }; struct kvm_opt { uint64_t typ; uint64_t val; }; #define PAGE_MASK GENMASK_ULL(51, 12) typedef struct { uint64_t next_page; uint64_t last_page; } page_alloc_t; static uint64_t pg_alloc(page_alloc_t* alloc) { if (alloc->next_page >= alloc->last_page) exit(1); uint64_t page = alloc->next_page; alloc->next_page += KVM_PAGE_SIZE; return page; } static void map_4k_page(uint64_t host_mem, page_alloc_t* alloc, uint64_t gpa) { uint64_t* pml4 = (uint64_t*)(host_mem + X86_SYZOS_ADDR_PML4); uint64_t pml4_idx = (gpa >> 39) & 0x1FF; if (pml4[pml4_idx] == 0) pml4[pml4_idx] = X86_PDE64_PRESENT | X86_PDE64_RW | pg_alloc(alloc); uint64_t* pdpt = (uint64_t*)(host_mem + (pml4[pml4_idx] & PAGE_MASK)); uint64_t pdpt_idx = (gpa >> 30) & 0x1FF; if (pdpt[pdpt_idx] == 0) pdpt[pdpt_idx] = X86_PDE64_PRESENT | X86_PDE64_RW | pg_alloc(alloc); uint64_t* pd = (uint64_t*)(host_mem + (pdpt[pdpt_idx] & PAGE_MASK)); uint64_t pd_idx = (gpa >> 21) & 0x1FF; if (pd[pd_idx] == 0) pd[pd_idx] = X86_PDE64_PRESENT | X86_PDE64_RW | pg_alloc(alloc); uint64_t* pt = (uint64_t*)(host_mem + (pd[pd_idx] & PAGE_MASK)); uint64_t pt_idx = (gpa >> 12) & 0x1FF; pt[pt_idx] = (gpa & PAGE_MASK) | X86_PDE64_PRESENT | X86_PDE64_RW; } static int map_4k_region(uint64_t host_mem, page_alloc_t* alloc, uint64_t gpa_start, int num_pages) { for (int i = 0; i < num_pages; i++) map_4k_page(host_mem, alloc, gpa_start + (i * KVM_PAGE_SIZE)); return num_pages; } static void setup_pg_table(struct kvm_syz_vm* vm) { int total = vm->total_pages; uint64_t host_mem = (uint64_t)vm->gpa0_mem; page_alloc_t alloc = {.next_page = X86_SYZOS_ADDR_PT_POOL, .last_page = X86_SYZOS_ADDR_PT_POOL + 32 * KVM_PAGE_SIZE}; for (uint64_t i = 0; i < (alloc.last_page - alloc.next_page); i += KVM_PAGE_SIZE) memset((void*)(host_mem + alloc.next_page + i), 0, KVM_PAGE_SIZE); for (size_t i = 0; i < sizeof(syzos_mem_regions) / sizeof(syzos_mem_regions[0]); i++) total -= map_4k_region(host_mem, &alloc, syzos_mem_regions[i].gpa, syzos_mem_regions[i].pages); map_4k_region(host_mem, &alloc, X86_SYZOS_ADDR_UNUSED, total); } struct gdt_entry { uint16_t limit_low; uint16_t base_low; uint8_t base_mid; uint8_t access; uint8_t limit_high_and_flags; uint8_t base_high; } __attribute__((packed)); static void setup_gdt_64(struct gdt_entry* gdt) { gdt[0] = (struct gdt_entry){0}; gdt[X86_SYZOS_SEL_CODE >> 3] = (struct gdt_entry){ .limit_low = 0xFFFF, .base_low = 0, .base_mid = 0, .access = 0x9A, .limit_high_and_flags = 0xAF, .base_high = 0}; gdt[X86_SYZOS_SEL_DATA >> 3] = (struct gdt_entry){ .limit_low = 0xFFFF, .base_low = (uint16_t)(X86_SYZOS_ADDR_VAR_TSS & 0xFFFF), .base_mid = (uint8_t)((X86_SYZOS_ADDR_VAR_TSS >> 16) & 0xFF), .access = 0x92, .limit_high_and_flags = 0xCF, .base_high = (uint8_t)((X86_SYZOS_ADDR_VAR_TSS >> 24) & 0xFF)}; gdt[X86_SYZOS_SEL_TSS64 >> 3] = (struct gdt_entry){ .limit_low = 0x67, .base_low = 0, .base_mid = 0, .access = 0x89, .limit_high_and_flags = 0x00, .base_high = 0}; } static void setup_gdt_ldt_pg(struct kvm_syz_vm* vm, int cpufd) { struct kvm_sregs sregs; ioctl(cpufd, KVM_GET_SREGS, &sregs); sregs.gdt.base = X86_SYZOS_ADDR_GDT; sregs.gdt.limit = 5 * sizeof(struct gdt_entry) - 1; struct gdt_entry* gdt = (struct gdt_entry*)((uint64_t)vm->host_mem + sregs.gdt.base); struct kvm_segment seg_cs64; memset(&seg_cs64, 0, sizeof(seg_cs64)); seg_cs64.selector = X86_SYZOS_SEL_CODE; seg_cs64.type = 11; seg_cs64.base = 0; seg_cs64.limit = 0xFFFFFFFFu; seg_cs64.present = 1; seg_cs64.s = 1; seg_cs64.g = 1; seg_cs64.l = 1; sregs.cs = seg_cs64; struct kvm_segment seg_ds64; memset(&seg_ds64, 0, sizeof(struct kvm_segment)); seg_ds64.selector = X86_SYZOS_SEL_DATA; seg_ds64.type = 3; seg_ds64.limit = 0xFFFFFFFFu; seg_ds64.present = 1; seg_ds64.s = 1; seg_ds64.g = 1; seg_ds64.db = 1; sregs.ds = seg_ds64; sregs.es = seg_ds64; sregs.fs = seg_ds64; sregs.gs = seg_ds64; sregs.ss = seg_ds64; struct kvm_segment seg_tr; memset(&seg_tr, 0, sizeof(seg_tr)); seg_tr.selector = X86_SYZOS_SEL_TSS64; seg_tr.type = 11; seg_tr.base = X86_SYZOS_ADDR_VAR_TSS; seg_tr.limit = 0x67; seg_tr.present = 1; seg_tr.s = 0; sregs.tr = seg_tr; volatile uint8_t* l1_tss = (volatile uint8_t*)((uint64_t)vm->host_mem + X86_SYZOS_ADDR_VAR_TSS); memset((void*)l1_tss, 0, 104); *(volatile uint64_t*)(l1_tss + 4) = X86_SYZOS_ADDR_STACK0; setup_gdt_64(gdt); syzos_setup_idt(vm, &sregs); setup_pg_table(vm); sregs.cr0 = X86_CR0_PE | X86_CR0_NE | X86_CR0_PG; sregs.cr4 |= X86_CR4_PAE | X86_CR4_OSFXSR; sregs.efer |= (X86_EFER_LME | X86_EFER_LMA | X86_EFER_NXE); sregs.cr3 = X86_ADDR_PML4; ioctl(cpufd, KVM_SET_SREGS, &sregs); } static void setup_cpuid(int cpufd) { int kvmfd = open("/dev/kvm", O_RDWR); char buf[sizeof(struct kvm_cpuid2) + 128 * sizeof(struct kvm_cpuid_entry2)]; memset(buf, 0, sizeof(buf)); struct kvm_cpuid2* cpuid = (struct kvm_cpuid2*)buf; cpuid->nent = 128; ioctl(kvmfd, KVM_GET_SUPPORTED_CPUID, cpuid); ioctl(cpufd, KVM_SET_CPUID2, cpuid); close(kvmfd); } #define KVM_SETUP_PAGING (1 << 0) #define KVM_SETUP_PAE (1 << 1) #define KVM_SETUP_PROTECTED (1 << 2) #define KVM_SETUP_CPL3 (1 << 3) #define KVM_SETUP_VIRT86 (1 << 4) #define KVM_SETUP_SMM (1 << 5) #define KVM_SETUP_VM (1 << 6) static volatile long syz_kvm_setup_cpu(volatile long a0, volatile long a1, volatile long a2, volatile long a3, volatile long a4, volatile long a5, volatile long a6, volatile long a7) { const int vmfd = a0; const int cpufd = a1; char* const host_mem = (char*)a2; const struct kvm_text* const text_array_ptr = (struct kvm_text*)a3; const uintptr_t text_count = a4; const uintptr_t flags = a5; const struct kvm_opt* const opt_array_ptr = (struct kvm_opt*)a6; uintptr_t opt_count = a7; const uintptr_t page_size = 4 << 10; const uintptr_t ioapic_page = 10; const uintptr_t guest_mem_size = 24 * page_size; const uintptr_t guest_mem = 0; (void)text_count; int text_type = text_array_ptr[0].typ; const void* text = text_array_ptr[0].text; uintptr_t text_size = text_array_ptr[0].size; for (uintptr_t i = 0; i < guest_mem_size / page_size; i++) { struct kvm_userspace_memory_region memreg; memreg.slot = i; memreg.flags = 0; memreg.guest_phys_addr = guest_mem + i * page_size; if (i == ioapic_page) memreg.guest_phys_addr = 0xfec00000; memreg.memory_size = page_size; memreg.userspace_addr = (uintptr_t)host_mem + i * page_size; ioctl(vmfd, KVM_SET_USER_MEMORY_REGION, &memreg); } struct kvm_userspace_memory_region memreg; memreg.slot = 1 + (1 << 16); memreg.flags = 0; memreg.guest_phys_addr = 0x30000; memreg.memory_size = 64 << 10; memreg.userspace_addr = (uintptr_t)host_mem; ioctl(vmfd, KVM_SET_USER_MEMORY_REGION, &memreg); struct kvm_sregs sregs; if (ioctl(cpufd, KVM_GET_SREGS, &sregs)) return -1; struct kvm_regs regs; memset(®s, 0, sizeof(regs)); regs.rip = guest_mem + X86_ADDR_TEXT; regs.rsp = X86_ADDR_STACK0; sregs.gdt.base = guest_mem + X86_ADDR_GDT; sregs.gdt.limit = 256 * sizeof(uint64_t) - 1; uint64_t* gdt = (uint64_t*)(host_mem + sregs.gdt.base); struct kvm_segment seg_ldt; memset(&seg_ldt, 0, sizeof(seg_ldt)); seg_ldt.selector = X86_SEL_LDT; seg_ldt.type = 2; seg_ldt.base = guest_mem + X86_ADDR_LDT; seg_ldt.limit = 256 * sizeof(uint64_t) - 1; seg_ldt.present = 1; seg_ldt.dpl = 0; seg_ldt.s = 0; seg_ldt.g = 0; seg_ldt.db = 1; seg_ldt.l = 0; sregs.ldt = seg_ldt; uint64_t* ldt = (uint64_t*)(host_mem + sregs.ldt.base); struct kvm_segment seg_cs16; memset(&seg_cs16, 0, sizeof(seg_cs16)); seg_cs16.selector = X86_SEL_CS16; seg_cs16.type = 11; seg_cs16.base = 0; seg_cs16.limit = 0xfffff; seg_cs16.present = 1; seg_cs16.dpl = 0; seg_cs16.s = 1; seg_cs16.g = 0; seg_cs16.db = 0; seg_cs16.l = 0; struct kvm_segment seg_ds16 = seg_cs16; seg_ds16.selector = X86_SEL_DS16; seg_ds16.type = 3; struct kvm_segment seg_cs16_cpl3 = seg_cs16; seg_cs16_cpl3.selector = X86_SEL_CS16_CPL3; seg_cs16_cpl3.dpl = 3; struct kvm_segment seg_ds16_cpl3 = seg_ds16; seg_ds16_cpl3.selector = X86_SEL_DS16_CPL3; seg_ds16_cpl3.dpl = 3; struct kvm_segment seg_cs32 = seg_cs16; seg_cs32.selector = X86_SEL_CS32; seg_cs32.db = 1; struct kvm_segment seg_ds32 = seg_ds16; seg_ds32.selector = X86_SEL_DS32; seg_ds32.db = 1; struct kvm_segment seg_cs32_cpl3 = seg_cs32; seg_cs32_cpl3.selector = X86_SEL_CS32_CPL3; seg_cs32_cpl3.dpl = 3; struct kvm_segment seg_ds32_cpl3 = seg_ds32; seg_ds32_cpl3.selector = X86_SEL_DS32_CPL3; seg_ds32_cpl3.dpl = 3; struct kvm_segment seg_cs64 = seg_cs16; seg_cs64.selector = X86_SEL_CS64; seg_cs64.l = 1; struct kvm_segment seg_ds64 = seg_ds32; seg_ds64.selector = X86_SEL_DS64; struct kvm_segment seg_cs64_cpl3 = seg_cs64; seg_cs64_cpl3.selector = X86_SEL_CS64_CPL3; seg_cs64_cpl3.dpl = 3; struct kvm_segment seg_ds64_cpl3 = seg_ds64; seg_ds64_cpl3.selector = X86_SEL_DS64_CPL3; seg_ds64_cpl3.dpl = 3; struct kvm_segment seg_tss32; memset(&seg_tss32, 0, sizeof(seg_tss32)); seg_tss32.selector = X86_SEL_TSS32; seg_tss32.type = 9; seg_tss32.base = X86_ADDR_VAR_TSS32; seg_tss32.limit = 0x1ff; seg_tss32.present = 1; seg_tss32.dpl = 0; seg_tss32.s = 0; seg_tss32.g = 0; seg_tss32.db = 0; seg_tss32.l = 0; struct kvm_segment seg_tss32_2 = seg_tss32; seg_tss32_2.selector = X86_SEL_TSS32_2; seg_tss32_2.base = X86_ADDR_VAR_TSS32_2; struct kvm_segment seg_tss32_cpl3 = seg_tss32; seg_tss32_cpl3.selector = X86_SEL_TSS32_CPL3; seg_tss32_cpl3.base = X86_ADDR_VAR_TSS32_CPL3; struct kvm_segment seg_tss32_vm86 = seg_tss32; seg_tss32_vm86.selector = X86_SEL_TSS32_VM86; seg_tss32_vm86.base = X86_ADDR_VAR_TSS32_VM86; struct kvm_segment seg_tss16 = seg_tss32; seg_tss16.selector = X86_SEL_TSS16; seg_tss16.base = X86_ADDR_VAR_TSS16; seg_tss16.limit = 0xff; seg_tss16.type = 1; struct kvm_segment seg_tss16_2 = seg_tss16; seg_tss16_2.selector = X86_SEL_TSS16_2; seg_tss16_2.base = X86_ADDR_VAR_TSS16_2; seg_tss16_2.dpl = 0; struct kvm_segment seg_tss16_cpl3 = seg_tss16; seg_tss16_cpl3.selector = X86_SEL_TSS16_CPL3; seg_tss16_cpl3.base = X86_ADDR_VAR_TSS16_CPL3; seg_tss16_cpl3.dpl = 3; struct kvm_segment seg_tss64 = seg_tss32; seg_tss64.selector = X86_SEL_TSS64; seg_tss64.base = X86_ADDR_VAR_TSS64; seg_tss64.limit = 0x1ff; struct kvm_segment seg_tss64_cpl3 = seg_tss64; seg_tss64_cpl3.selector = X86_SEL_TSS64_CPL3; seg_tss64_cpl3.base = X86_ADDR_VAR_TSS64_CPL3; seg_tss64_cpl3.dpl = 3; struct kvm_segment seg_cgate16; memset(&seg_cgate16, 0, sizeof(seg_cgate16)); seg_cgate16.selector = X86_SEL_CGATE16; seg_cgate16.type = 4; seg_cgate16.base = X86_SEL_CS16 | (2 << 16); seg_cgate16.limit = X86_ADDR_VAR_USER_CODE2; seg_cgate16.present = 1; seg_cgate16.dpl = 0; seg_cgate16.s = 0; seg_cgate16.g = 0; seg_cgate16.db = 0; seg_cgate16.l = 0; seg_cgate16.avl = 0; struct kvm_segment seg_tgate16 = seg_cgate16; seg_tgate16.selector = X86_SEL_TGATE16; seg_tgate16.type = 3; seg_cgate16.base = X86_SEL_TSS16_2; seg_tgate16.limit = 0; struct kvm_segment seg_cgate32 = seg_cgate16; seg_cgate32.selector = X86_SEL_CGATE32; seg_cgate32.type = 12; seg_cgate32.base = X86_SEL_CS32 | (2 << 16); struct kvm_segment seg_tgate32 = seg_cgate32; seg_tgate32.selector = X86_SEL_TGATE32; seg_tgate32.type = 11; seg_tgate32.base = X86_SEL_TSS32_2; seg_tgate32.limit = 0; struct kvm_segment seg_cgate64 = seg_cgate16; seg_cgate64.selector = X86_SEL_CGATE64; seg_cgate64.type = 12; seg_cgate64.base = X86_SEL_CS64; int kvmfd = open("/dev/kvm", O_RDWR); char buf[sizeof(struct kvm_cpuid2) + 128 * sizeof(struct kvm_cpuid_entry2)]; memset(buf, 0, sizeof(buf)); struct kvm_cpuid2* cpuid = (struct kvm_cpuid2*)buf; cpuid->nent = 128; ioctl(kvmfd, KVM_GET_SUPPORTED_CPUID, cpuid); ioctl(cpufd, KVM_SET_CPUID2, cpuid); close(kvmfd); const char* text_prefix = 0; int text_prefix_size = 0; char* host_text = host_mem + X86_ADDR_TEXT; if (text_type == 8) { if (flags & KVM_SETUP_SMM) { if (flags & KVM_SETUP_PROTECTED) { sregs.cs = seg_cs16; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds16; sregs.cr0 |= X86_CR0_PE; } else { sregs.cs.selector = 0; sregs.cs.base = 0; } *(host_mem + X86_ADDR_TEXT) = 0xf4; host_text = host_mem + 0x8000; ioctl(cpufd, KVM_SMI, 0); } else if (flags & KVM_SETUP_VIRT86) { sregs.cs = seg_cs32; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32; sregs.cr0 |= X86_CR0_PE; sregs.efer |= X86_EFER_SCE; setup_syscall_msrs(cpufd, X86_SEL_CS32, X86_SEL_CS32_CPL3); setup_32bit_idt(&sregs, host_mem, guest_mem); if (flags & KVM_SETUP_PAGING) { uint64_t pd_addr = guest_mem + X86_ADDR_PD; uint64_t* pd = (uint64_t*)(host_mem + X86_ADDR_PD); pd[0] = X86_PDE32_PRESENT | X86_PDE32_RW | X86_PDE32_USER | X86_PDE32_PS; sregs.cr3 = pd_addr; sregs.cr4 |= X86_CR4_PSE; text_prefix = kvm_asm32_paged_vm86; text_prefix_size = sizeof(kvm_asm32_paged_vm86) - 1; } else { text_prefix = kvm_asm32_vm86; text_prefix_size = sizeof(kvm_asm32_vm86) - 1; } } else { sregs.cs.selector = 0; sregs.cs.base = 0; } } else if (text_type == 16) { if (flags & KVM_SETUP_CPL3) { sregs.cs = seg_cs16; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds16; text_prefix = kvm_asm16_cpl3; text_prefix_size = sizeof(kvm_asm16_cpl3) - 1; } else { sregs.cr0 |= X86_CR0_PE; sregs.cs = seg_cs16; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds16; } } else if (text_type == 32) { sregs.cr0 |= X86_CR0_PE; sregs.efer |= X86_EFER_SCE; setup_syscall_msrs(cpufd, X86_SEL_CS32, X86_SEL_CS32_CPL3); setup_32bit_idt(&sregs, host_mem, guest_mem); if (flags & KVM_SETUP_SMM) { sregs.cs = seg_cs32; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32; *(host_mem + X86_ADDR_TEXT) = 0xf4; host_text = host_mem + 0x8000; ioctl(cpufd, KVM_SMI, 0); } else if (flags & KVM_SETUP_PAGING) { sregs.cs = seg_cs32; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32; uint64_t pd_addr = guest_mem + X86_ADDR_PD; uint64_t* pd = (uint64_t*)(host_mem + X86_ADDR_PD); pd[0] = X86_PDE32_PRESENT | X86_PDE32_RW | X86_PDE32_USER | X86_PDE32_PS; sregs.cr3 = pd_addr; sregs.cr4 |= X86_CR4_PSE; text_prefix = kvm_asm32_paged; text_prefix_size = sizeof(kvm_asm32_paged) - 1; } else if (flags & KVM_SETUP_CPL3) { sregs.cs = seg_cs32_cpl3; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32_cpl3; } else { sregs.cs = seg_cs32; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32; } } else { sregs.efer |= X86_EFER_LME | X86_EFER_SCE; sregs.cr0 |= X86_CR0_PE; setup_syscall_msrs(cpufd, X86_SEL_CS64, X86_SEL_CS64_CPL3); setup_64bit_idt(&sregs, host_mem, guest_mem); sregs.cs = seg_cs32; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32; uint64_t pml4_addr = guest_mem + X86_ADDR_PML4; uint64_t* pml4 = (uint64_t*)(host_mem + X86_ADDR_PML4); uint64_t pdpt_addr = guest_mem + X86_ADDR_PDP; uint64_t* pdpt = (uint64_t*)(host_mem + X86_ADDR_PDP); uint64_t pd_addr = guest_mem + X86_ADDR_PD; uint64_t* pd = (uint64_t*)(host_mem + X86_ADDR_PD); pml4[0] = X86_PDE64_PRESENT | X86_PDE64_RW | X86_PDE64_USER | pdpt_addr; pdpt[0] = X86_PDE64_PRESENT | X86_PDE64_RW | X86_PDE64_USER | pd_addr; pd[0] = X86_PDE64_PRESENT | X86_PDE64_RW | X86_PDE64_USER | X86_PDE64_PS; sregs.cr3 = pml4_addr; sregs.cr4 |= X86_CR4_PAE; if (flags & KVM_SETUP_VM) { sregs.cr0 |= X86_CR0_NE; *((uint64_t*)(host_mem + X86_ADDR_VAR_VMXON_PTR)) = X86_ADDR_VAR_VMXON; *((uint64_t*)(host_mem + X86_ADDR_VAR_VMCS_PTR)) = X86_ADDR_VAR_VMCS; memcpy(host_mem + X86_ADDR_VAR_VMEXIT_CODE, kvm_asm64_vm_exit, sizeof(kvm_asm64_vm_exit) - 1); *((uint64_t*)(host_mem + X86_ADDR_VAR_VMEXIT_PTR)) = X86_ADDR_VAR_VMEXIT_CODE; text_prefix = kvm_asm64_init_vm; text_prefix_size = sizeof(kvm_asm64_init_vm) - 1; } else if (flags & KVM_SETUP_CPL3) { text_prefix = kvm_asm64_cpl3; text_prefix_size = sizeof(kvm_asm64_cpl3) - 1; } else { text_prefix = kvm_asm64_enable_long; text_prefix_size = sizeof(kvm_asm64_enable_long) - 1; } } struct tss16 tss16; memset(&tss16, 0, sizeof(tss16)); tss16.ss0 = tss16.ss1 = tss16.ss2 = X86_SEL_DS16; tss16.sp0 = tss16.sp1 = tss16.sp2 = X86_ADDR_STACK0; tss16.ip = X86_ADDR_VAR_USER_CODE2; tss16.flags = (1 << 1); tss16.cs = X86_SEL_CS16; tss16.es = tss16.ds = tss16.ss = X86_SEL_DS16; tss16.ldt = X86_SEL_LDT; struct tss16* tss16_addr = (struct tss16*)(host_mem + seg_tss16_2.base); memcpy(tss16_addr, &tss16, sizeof(tss16)); memset(&tss16, 0, sizeof(tss16)); tss16.ss0 = tss16.ss1 = tss16.ss2 = X86_SEL_DS16; tss16.sp0 = tss16.sp1 = tss16.sp2 = X86_ADDR_STACK0; tss16.ip = X86_ADDR_VAR_USER_CODE2; tss16.flags = (1 << 1); tss16.cs = X86_SEL_CS16_CPL3; tss16.es = tss16.ds = tss16.ss = X86_SEL_DS16_CPL3; tss16.ldt = X86_SEL_LDT; struct tss16* tss16_cpl3_addr = (struct tss16*)(host_mem + seg_tss16_cpl3.base); memcpy(tss16_cpl3_addr, &tss16, sizeof(tss16)); struct tss32 tss32; memset(&tss32, 0, sizeof(tss32)); tss32.ss0 = tss32.ss1 = tss32.ss2 = X86_SEL_DS32; tss32.sp0 = tss32.sp1 = tss32.sp2 = X86_ADDR_STACK0; tss32.ip = X86_ADDR_VAR_USER_CODE; tss32.flags = (1 << 1) | (1 << 17); tss32.ldt = X86_SEL_LDT; tss32.cr3 = sregs.cr3; tss32.io_bitmap = offsetof(struct tss32, io_bitmap); struct tss32* tss32_addr = (struct tss32*)(host_mem + seg_tss32_vm86.base); memcpy(tss32_addr, &tss32, sizeof(tss32)); memset(&tss32, 0, sizeof(tss32)); tss32.ss0 = tss32.ss1 = tss32.ss2 = X86_SEL_DS32; tss32.sp0 = tss32.sp1 = tss32.sp2 = X86_ADDR_STACK0; tss32.ip = X86_ADDR_VAR_USER_CODE; tss32.flags = (1 << 1); tss32.cr3 = sregs.cr3; tss32.es = tss32.ds = tss32.ss = tss32.gs = tss32.fs = X86_SEL_DS32; tss32.cs = X86_SEL_CS32; tss32.ldt = X86_SEL_LDT; tss32.cr3 = sregs.cr3; tss32.io_bitmap = offsetof(struct tss32, io_bitmap); struct tss32* tss32_cpl3_addr = (struct tss32*)(host_mem + seg_tss32_2.base); memcpy(tss32_cpl3_addr, &tss32, sizeof(tss32)); struct tss64 tss64; memset(&tss64, 0, sizeof(tss64)); tss64.rsp[0] = X86_ADDR_STACK0; tss64.rsp[1] = X86_ADDR_STACK0; tss64.rsp[2] = X86_ADDR_STACK0; tss64.io_bitmap = offsetof(struct tss64, io_bitmap); struct tss64* tss64_addr = (struct tss64*)(host_mem + seg_tss64.base); memcpy(tss64_addr, &tss64, sizeof(tss64)); memset(&tss64, 0, sizeof(tss64)); tss64.rsp[0] = X86_ADDR_STACK0; tss64.rsp[1] = X86_ADDR_STACK0; tss64.rsp[2] = X86_ADDR_STACK0; tss64.io_bitmap = offsetof(struct tss64, io_bitmap); struct tss64* tss64_cpl3_addr = (struct tss64*)(host_mem + seg_tss64_cpl3.base); memcpy(tss64_cpl3_addr, &tss64, sizeof(tss64)); if (text_size > 1000) text_size = 1000; if (text_prefix) { memcpy(host_text, text_prefix, text_prefix_size); void* patch = memmem(host_text, text_prefix_size, "\xde\xc0\xad\x0b", 4); if (patch) *((uint32_t*)patch) = guest_mem + X86_ADDR_TEXT + ((char*)patch - host_text) + 6; uint16_t magic = X86_PREFIX_SIZE; patch = memmem(host_text, text_prefix_size, &magic, sizeof(magic)); if (patch) *((uint16_t*)patch) = guest_mem + X86_ADDR_TEXT + text_prefix_size; } memcpy((void*)(host_text + text_prefix_size), text, text_size); *(host_text + text_prefix_size + text_size) = 0xf4; memcpy(host_mem + X86_ADDR_VAR_USER_CODE, text, text_size); *(host_mem + X86_ADDR_VAR_USER_CODE + text_size) = 0xf4; *(host_mem + X86_ADDR_VAR_HLT) = 0xf4; memcpy(host_mem + X86_ADDR_VAR_SYSRET, "\x0f\x07\xf4", 3); memcpy(host_mem + X86_ADDR_VAR_SYSEXIT, "\x0f\x35\xf4", 3); *(uint64_t*)(host_mem + X86_ADDR_VAR_VMWRITE_FLD) = 0; *(uint64_t*)(host_mem + X86_ADDR_VAR_VMWRITE_VAL) = 0; if (opt_count > 2) opt_count = 2; for (uintptr_t i = 0; i < opt_count; i++) { uint64_t typ = opt_array_ptr[i].typ; uint64_t val = opt_array_ptr[i].val; switch (typ % 9) { case 0: sregs.cr0 ^= val & (X86_CR0_MP | X86_CR0_EM | X86_CR0_ET | X86_CR0_NE | X86_CR0_WP | X86_CR0_AM | X86_CR0_NW | X86_CR0_CD); break; case 1: sregs.cr4 ^= val & (X86_CR4_VME | X86_CR4_PVI | X86_CR4_TSD | X86_CR4_DE | X86_CR4_MCE | X86_CR4_PGE | X86_CR4_PCE | X86_CR4_OSFXSR | X86_CR4_OSXMMEXCPT | X86_CR4_UMIP | X86_CR4_VMXE | X86_CR4_SMXE | X86_CR4_FSGSBASE | X86_CR4_PCIDE | X86_CR4_OSXSAVE | X86_CR4_SMEP | X86_CR4_SMAP | X86_CR4_PKE); break; case 2: sregs.efer ^= val & (X86_EFER_SCE | X86_EFER_NXE | X86_EFER_SVME | X86_EFER_LMSLE | X86_EFER_FFXSR | X86_EFER_TCE); break; case 3: val &= ((1 << 8) | (1 << 9) | (1 << 10) | (1 << 12) | (1 << 13) | (1 << 14) | (1 << 15) | (1 << 18) | (1 << 19) | (1 << 20) | (1 << 21)); regs.rflags ^= val; tss16_addr->flags ^= val; tss16_cpl3_addr->flags ^= val; tss32_addr->flags ^= val; tss32_cpl3_addr->flags ^= val; break; case 4: seg_cs16.type = val & 0xf; seg_cs32.type = val & 0xf; seg_cs64.type = val & 0xf; break; case 5: seg_cs16_cpl3.type = val & 0xf; seg_cs32_cpl3.type = val & 0xf; seg_cs64_cpl3.type = val & 0xf; break; case 6: seg_ds16.type = val & 0xf; seg_ds32.type = val & 0xf; seg_ds64.type = val & 0xf; break; case 7: seg_ds16_cpl3.type = val & 0xf; seg_ds32_cpl3.type = val & 0xf; seg_ds64_cpl3.type = val & 0xf; break; case 8: *(uint64_t*)(host_mem + X86_ADDR_VAR_VMWRITE_FLD) = (val & 0xffff); *(uint64_t*)(host_mem + X86_ADDR_VAR_VMWRITE_VAL) = (val >> 16); break; default: exit(1); } } regs.rflags |= 2; fill_segment_descriptor(gdt, ldt, &seg_ldt); fill_segment_descriptor(gdt, ldt, &seg_cs16); fill_segment_descriptor(gdt, ldt, &seg_ds16); fill_segment_descriptor(gdt, ldt, &seg_cs16_cpl3); fill_segment_descriptor(gdt, ldt, &seg_ds16_cpl3); fill_segment_descriptor(gdt, ldt, &seg_cs32); fill_segment_descriptor(gdt, ldt, &seg_ds32); fill_segment_descriptor(gdt, ldt, &seg_cs32_cpl3); fill_segment_descriptor(gdt, ldt, &seg_ds32_cpl3); fill_segment_descriptor(gdt, ldt, &seg_cs64); fill_segment_descriptor(gdt, ldt, &seg_ds64); fill_segment_descriptor(gdt, ldt, &seg_cs64_cpl3); fill_segment_descriptor(gdt, ldt, &seg_ds64_cpl3); fill_segment_descriptor(gdt, ldt, &seg_tss32); fill_segment_descriptor(gdt, ldt, &seg_tss32_2); fill_segment_descriptor(gdt, ldt, &seg_tss32_cpl3); fill_segment_descriptor(gdt, ldt, &seg_tss32_vm86); fill_segment_descriptor(gdt, ldt, &seg_tss16); fill_segment_descriptor(gdt, ldt, &seg_tss16_2); fill_segment_descriptor(gdt, ldt, &seg_tss16_cpl3); fill_segment_descriptor_dword(gdt, ldt, &seg_tss64); fill_segment_descriptor_dword(gdt, ldt, &seg_tss64_cpl3); fill_segment_descriptor(gdt, ldt, &seg_cgate16); fill_segment_descriptor(gdt, ldt, &seg_tgate16); fill_segment_descriptor(gdt, ldt, &seg_cgate32); fill_segment_descriptor(gdt, ldt, &seg_tgate32); fill_segment_descriptor_dword(gdt, ldt, &seg_cgate64); if (ioctl(cpufd, KVM_SET_SREGS, &sregs)) return -1; if (ioctl(cpufd, KVM_SET_REGS, ®s)) return -1; return 0; } #define RFLAGS_1_BIT (1ULL << 1) #define RFLAGS_IF_BIT (1ULL << 9) static void reset_cpu_regs(int cpufd, int cpu_id, size_t text_size) { struct kvm_regs regs; memset(®s, 0, sizeof(regs)); regs.rflags |= RFLAGS_1_BIT | RFLAGS_IF_BIT; regs.rip = executor_fn_guest_addr(guest_main); regs.rsp = X86_SYZOS_ADDR_STACK0; regs.rdi = text_size; regs.rsi = cpu_id; ioctl(cpufd, KVM_SET_REGS, ®s); } static void install_user_code(struct kvm_syz_vm* vm, int cpufd, int cpu_id, const void* text, size_t text_size) { if ((cpu_id < 0) || (cpu_id >= KVM_MAX_VCPU)) return; if (text_size > KVM_PAGE_SIZE) text_size = KVM_PAGE_SIZE; void* target = (void*)((uint64_t)vm->user_text + (KVM_PAGE_SIZE * cpu_id)); memcpy(target, text, text_size); setup_gdt_ldt_pg(vm, cpufd); setup_cpuid(cpufd); reset_cpu_regs(cpufd, cpu_id, text_size); } struct addr_size { void* addr; size_t size; }; static struct addr_size alloc_guest_mem(struct addr_size* free, size_t size) { struct addr_size ret = {.addr = NULL, .size = 0}; if (free->size < size) return ret; ret.addr = free->addr; ret.size = size; free->addr = (void*)((char*)free->addr + size); free->size -= size; return ret; } static void vm_set_user_memory_region(int vmfd, uint32_t slot, uint32_t flags, uint64_t guest_phys_addr, uint64_t memory_size, uint64_t userspace_addr) { struct kvm_userspace_memory_region memreg; memreg.slot = slot; memreg.flags = flags; memreg.guest_phys_addr = guest_phys_addr; memreg.memory_size = memory_size; memreg.userspace_addr = userspace_addr; ioctl(vmfd, KVM_SET_USER_MEMORY_REGION, &memreg); } static void install_syzos_code(void* host_mem, size_t mem_size) { size_t size = (char*)&__stop_guest - (char*)&__start_guest; if (size > mem_size) exit(1); memcpy(host_mem, &__start_guest, size); } static void setup_vm(int vmfd, struct kvm_syz_vm* vm) { struct addr_size allocator = {.addr = vm->host_mem, .size = vm->total_pages * KVM_PAGE_SIZE}; int slot = 0; for (size_t i = 0; i < sizeof(syzos_mem_regions) / sizeof(syzos_mem_regions[0]); i++) { const struct mem_region* r = &syzos_mem_regions[i]; if (r->flags & MEM_REGION_FLAG_NO_HOST_MEM) continue; struct addr_size next = alloc_guest_mem(&allocator, r->pages * KVM_PAGE_SIZE); uint32_t flags = 0; if (r->flags & MEM_REGION_FLAG_DIRTY_LOG) flags |= KVM_MEM_LOG_DIRTY_PAGES; if (r->flags & MEM_REGION_FLAG_READONLY) flags |= KVM_MEM_READONLY; if (r->flags & MEM_REGION_FLAG_USER_CODE) vm->user_text = next.addr; if (r->flags & MEM_REGION_FLAG_GPA0) vm->gpa0_mem = next.addr; if (r->flags & MEM_REGION_FLAG_EXECUTOR_CODE) install_syzos_code(next.addr, next.size); vm_set_user_memory_region(vmfd, slot++, flags, r->gpa, next.size, (uintptr_t)next.addr); } struct addr_size next = alloc_guest_mem(&allocator, allocator.size); vm_set_user_memory_region(vmfd, slot++, 0, X86_SYZOS_ADDR_UNUSED, next.size, (uintptr_t)next.addr); } static long syz_kvm_setup_syzos_vm(volatile long a0, volatile long a1) { const int vmfd = a0; void* host_mem = (void*)a1; struct kvm_syz_vm* ret = (struct kvm_syz_vm*)host_mem; ret->host_mem = (void*)((uint64_t)host_mem + KVM_PAGE_SIZE); ret->total_pages = KVM_GUEST_PAGES - 1; setup_vm(vmfd, ret); ret->vmfd = vmfd; ret->next_cpu_id = 0; return (long)ret; } static long syz_kvm_add_vcpu(volatile long a0, volatile long a1) { struct kvm_syz_vm* vm = (struct kvm_syz_vm*)a0; struct kvm_text* utext = (struct kvm_text*)a1; const void* text = utext->text; size_t text_size = utext->size; if (!vm) { errno = EINVAL; return -1; } if (vm->next_cpu_id == KVM_MAX_VCPU) { errno = ENOMEM; return -1; } int cpu_id = vm->next_cpu_id; int cpufd = ioctl(vm->vmfd, KVM_CREATE_VCPU, cpu_id); if (cpufd == -1) return -1; vm->next_cpu_id++; install_user_code(vm, cpufd, cpu_id, text, text_size); return cpufd; } static void setup_gadgetfs(); static void setup_binderfs(); static void setup_fusectl(); static void sandbox_common_mount_tmpfs(void) { write_file("/proc/sys/fs/mount-max", "100000"); if (mkdir("./syz-tmp", 0777)) exit(1); if (mount("", "./syz-tmp", "tmpfs", 0, NULL)) exit(1); if (mkdir("./syz-tmp/newroot", 0777)) exit(1); if (mkdir("./syz-tmp/newroot/dev", 0700)) exit(1); unsigned bind_mount_flags = MS_BIND | MS_REC | MS_PRIVATE; if (mount("/dev", "./syz-tmp/newroot/dev", NULL, bind_mount_flags, NULL)) exit(1); if (mkdir("./syz-tmp/newroot/proc", 0700)) exit(1); if (mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL)) exit(1); if (mkdir("./syz-tmp/newroot/selinux", 0700)) exit(1); const char* selinux_path = "./syz-tmp/newroot/selinux"; if (mount("/selinux", selinux_path, NULL, bind_mount_flags, NULL)) { if (errno != ENOENT) exit(1); if (mount("/sys/fs/selinux", selinux_path, NULL, bind_mount_flags, NULL) && errno != ENOENT) exit(1); } if (mkdir("./syz-tmp/newroot/sys", 0700)) exit(1); if (mount("/sys", "./syz-tmp/newroot/sys", 0, bind_mount_flags, NULL)) exit(1); if (mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, bind_mount_flags, NULL) && errno != ENOENT) exit(1); if (mount("/sys/fs/smackfs", "./syz-tmp/newroot/sys/fs/smackfs", NULL, bind_mount_flags, NULL) && errno != ENOENT) exit(1); if (mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, bind_mount_flags, NULL) && errno != ENOENT) exit(1); if (mkdir("./syz-tmp/newroot/syz-inputs", 0700)) exit(1); if (mount("/syz-inputs", "./syz-tmp/newroot/syz-inputs", NULL, bind_mount_flags | MS_RDONLY, NULL) && errno != ENOENT) exit(1); if (mkdir("./syz-tmp/pivot", 0777)) exit(1); if (syscall(SYS_pivot_root, "./syz-tmp", "./syz-tmp/pivot")) { if (chdir("./syz-tmp")) exit(1); } else { if (chdir("/")) exit(1); if (umount2("./pivot", MNT_DETACH)) exit(1); } if (chroot("./newroot")) exit(1); if (chdir("/")) exit(1); setup_gadgetfs(); setup_binderfs(); setup_fusectl(); } static void setup_gadgetfs() { if (mkdir("/dev/gadgetfs", 0777)) { } if (mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL)) { } } static void setup_fusectl() { if (mount(0, "/sys/fs/fuse/connections", "fusectl", 0, 0)) { } } static void setup_binderfs() { if (mkdir("/dev/binderfs", 0777)) { } if (mount("binder", "/dev/binderfs", "binder", 0, NULL)) { } } static void loop(); static void sandbox_common() { prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0); if (getppid() == 1) exit(1); int netns = open("/proc/self/ns/net", O_RDONLY); if (netns == -1) exit(1); if (dup2(netns, kInitNetNsFd) < 0) exit(1); close(netns); struct rlimit rlim; rlim.rlim_cur = rlim.rlim_max = (200 << 20); setrlimit(RLIMIT_AS, &rlim); rlim.rlim_cur = rlim.rlim_max = 32 << 20; setrlimit(RLIMIT_MEMLOCK, &rlim); rlim.rlim_cur = rlim.rlim_max = 136 << 20; setrlimit(RLIMIT_FSIZE, &rlim); rlim.rlim_cur = rlim.rlim_max = 1 << 20; setrlimit(RLIMIT_STACK, &rlim); rlim.rlim_cur = rlim.rlim_max = 128 << 20; setrlimit(RLIMIT_CORE, &rlim); rlim.rlim_cur = rlim.rlim_max = 256; setrlimit(RLIMIT_NOFILE, &rlim); if (unshare(CLONE_NEWNS)) { } if (mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, NULL)) { } if (unshare(CLONE_NEWIPC)) { } if (unshare(0x02000000)) { } if (unshare(CLONE_NEWUTS)) { } if (unshare(CLONE_SYSVSEM)) { } typedef struct { const char* name; const char* value; } sysctl_t; static const sysctl_t sysctls[] = { {"/proc/sys/kernel/shmmax", "16777216"}, {"/proc/sys/kernel/shmall", "536870912"}, {"/proc/sys/kernel/shmmni", "1024"}, {"/proc/sys/kernel/msgmax", "8192"}, {"/proc/sys/kernel/msgmni", "1024"}, {"/proc/sys/kernel/msgmnb", "1024"}, {"/proc/sys/kernel/sem", "1024 1048576 500 1024"}, }; unsigned i; for (i = 0; i < sizeof(sysctls) / sizeof(sysctls[0]); i++) write_file(sysctls[i].name, sysctls[i].value); } static int wait_for_loop(int pid) { if (pid < 0) exit(1); int status = 0; while (waitpid(-1, &status, __WALL) != pid) { } return WEXITSTATUS(status); } static void drop_caps(void) { struct __user_cap_header_struct cap_hdr = {}; struct __user_cap_data_struct cap_data[2] = {}; cap_hdr.version = _LINUX_CAPABILITY_VERSION_3; cap_hdr.pid = getpid(); if (syscall(SYS_capget, &cap_hdr, &cap_data)) exit(1); const int drop = (1 << CAP_SYS_PTRACE) | (1 << CAP_SYS_NICE); cap_data[0].effective &= ~drop; cap_data[0].permitted &= ~drop; cap_data[0].inheritable &= ~drop; if (syscall(SYS_capset, &cap_hdr, &cap_data)) exit(1); } static int do_sandbox_none(void) { if (unshare(CLONE_NEWPID)) { } int pid = fork(); if (pid != 0) return wait_for_loop(pid); sandbox_common(); drop_caps(); if (unshare(CLONE_NEWNET)) { } write_file("/proc/sys/net/ipv4/ping_group_range", "0 65535"); sandbox_common_mount_tmpfs(); loop(); exit(1); } #define FS_IOC_SETFLAGS _IOW('f', 2, long) static void remove_dir(const char* dir) { int iter = 0; DIR* dp = 0; const int umount_flags = MNT_FORCE | UMOUNT_NOFOLLOW; retry: while (umount2(dir, umount_flags) == 0) { } dp = opendir(dir); if (dp == NULL) { if (errno == EMFILE) { exit(1); } exit(1); } struct dirent* ep = 0; while ((ep = readdir(dp))) { if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0) continue; char filename[FILENAME_MAX]; snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name); while (umount2(filename, umount_flags) == 0) { } struct stat st; if (lstat(filename, &st)) exit(1); if (S_ISDIR(st.st_mode)) { remove_dir(filename); continue; } int i; for (i = 0;; i++) { if (unlink(filename) == 0) break; if (errno == EPERM) { int fd = open(filename, O_RDONLY); if (fd != -1) { long flags = 0; if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) { } close(fd); continue; } } if (errno == EROFS) { break; } if (errno != EBUSY || i > 100) exit(1); if (umount2(filename, umount_flags)) exit(1); } } closedir(dp); for (int i = 0;; i++) { if (rmdir(dir) == 0) break; if (i < 100) { if (errno == EPERM) { int fd = open(dir, O_RDONLY); if (fd != -1) { long flags = 0; if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) { } close(fd); continue; } } if (errno == EROFS) { break; } if (errno == EBUSY) { if (umount2(dir, umount_flags)) exit(1); continue; } if (errno == ENOTEMPTY) { if (iter < 100) { iter++; goto retry; } } } exit(1); } } static int inject_fault(int nth) { int fd; fd = open("/proc/thread-self/fail-nth", O_RDWR); if (fd == -1) exit(1); char buf[16]; sprintf(buf, "%d", nth); if (write(fd, buf, strlen(buf)) != (ssize_t)strlen(buf)) exit(1); return fd; } static void kill_and_wait(int pid, int* status) { kill(-pid, SIGKILL); kill(pid, SIGKILL); for (int i = 0; i < 100; i++) { if (waitpid(-1, status, WNOHANG | __WALL) == pid) return; usleep(1000); } DIR* dir = opendir("/sys/fs/fuse/connections"); if (dir) { for (;;) { struct dirent* ent = readdir(dir); if (!ent) break; if (strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0) continue; char abort[300]; snprintf(abort, sizeof(abort), "/sys/fs/fuse/connections/%s/abort", ent->d_name); int fd = open(abort, O_WRONLY); if (fd == -1) { continue; } if (write(fd, abort, 1) < 0) { } close(fd); } closedir(dir); } else { } while (waitpid(-1, status, __WALL) != pid) { } } static void reset_loop() { char buf[64]; snprintf(buf, sizeof(buf), "/dev/loop%llu", procid); int loopfd = open(buf, O_RDWR); if (loopfd != -1) { ioctl(loopfd, LOOP_CLR_FD, 0); close(loopfd); } } static void setup_test() { prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0); setpgrp(); write_file("/proc/self/oom_score_adj", "1000"); if (symlink("/dev/binderfs", "./binderfs")) { } } static void close_fds() { for (int fd = 3; fd < MAX_FDS; fd++) close(fd); } static const char* setup_fault() { int fd = open("/proc/self/make-it-fail", O_WRONLY); if (fd == -1) return "CONFIG_FAULT_INJECTION is not enabled"; close(fd); fd = open("/proc/thread-self/fail-nth", O_WRONLY); if (fd == -1) return "kernel does not have systematic fault injection support"; close(fd); static struct { const char* file; const char* val; bool fatal; } files[] = { {"/sys/kernel/debug/failslab/ignore-gfp-wait", "N", true}, {"/sys/kernel/debug/fail_futex/ignore-private", "N", false}, {"/sys/kernel/debug/fail_page_alloc/ignore-gfp-highmem", "N", false}, {"/sys/kernel/debug/fail_page_alloc/ignore-gfp-wait", "N", false}, {"/sys/kernel/debug/fail_page_alloc/min-order", "0", false}, }; unsigned i; for (i = 0; i < sizeof(files) / sizeof(files[0]); i++) { if (!write_file(files[i].file, files[i].val)) { if (files[i].fatal) return "failed to write fault injection file"; } } return NULL; } #define FUSE_MIN_READ_BUFFER 8192 enum fuse_opcode { FUSE_LOOKUP = 1, FUSE_FORGET = 2, FUSE_GETATTR = 3, FUSE_SETATTR = 4, FUSE_READLINK = 5, FUSE_SYMLINK = 6, FUSE_MKNOD = 8, FUSE_MKDIR = 9, FUSE_UNLINK = 10, FUSE_RMDIR = 11, FUSE_RENAME = 12, FUSE_LINK = 13, FUSE_OPEN = 14, FUSE_READ = 15, FUSE_WRITE = 16, FUSE_STATFS = 17, FUSE_RELEASE = 18, FUSE_FSYNC = 20, FUSE_SETXATTR = 21, FUSE_GETXATTR = 22, FUSE_LISTXATTR = 23, FUSE_REMOVEXATTR = 24, FUSE_FLUSH = 25, FUSE_INIT = 26, FUSE_OPENDIR = 27, FUSE_READDIR = 28, FUSE_RELEASEDIR = 29, FUSE_FSYNCDIR = 30, FUSE_GETLK = 31, FUSE_SETLK = 32, FUSE_SETLKW = 33, FUSE_ACCESS = 34, FUSE_CREATE = 35, FUSE_INTERRUPT = 36, FUSE_BMAP = 37, FUSE_DESTROY = 38, FUSE_IOCTL = 39, FUSE_POLL = 40, FUSE_NOTIFY_REPLY = 41, FUSE_BATCH_FORGET = 42, FUSE_FALLOCATE = 43, FUSE_READDIRPLUS = 44, FUSE_RENAME2 = 45, FUSE_LSEEK = 46, FUSE_COPY_FILE_RANGE = 47, FUSE_SETUPMAPPING = 48, FUSE_REMOVEMAPPING = 49, FUSE_SYNCFS = 50, FUSE_TMPFILE = 51, FUSE_STATX = 52, CUSE_INIT = 4096, CUSE_INIT_BSWAP_RESERVED = 1048576, FUSE_INIT_BSWAP_RESERVED = 436207616, }; struct fuse_in_header { uint32_t len; uint32_t opcode; uint64_t unique; uint64_t nodeid; uint32_t uid; uint32_t gid; uint32_t pid; uint32_t padding; }; struct fuse_out_header { uint32_t len; uint32_t error; uint64_t unique; }; struct syz_fuse_req_out { struct fuse_out_header* init; struct fuse_out_header* lseek; struct fuse_out_header* bmap; struct fuse_out_header* poll; struct fuse_out_header* getxattr; struct fuse_out_header* lk; struct fuse_out_header* statfs; struct fuse_out_header* write; struct fuse_out_header* read; struct fuse_out_header* open; struct fuse_out_header* attr; struct fuse_out_header* entry; struct fuse_out_header* dirent; struct fuse_out_header* direntplus; struct fuse_out_header* create_open; struct fuse_out_header* ioctl; struct fuse_out_header* statx; }; static int fuse_send_response(int fd, const struct fuse_in_header* in_hdr, struct fuse_out_header* out_hdr) { if (!out_hdr) { return -1; } out_hdr->unique = in_hdr->unique; if (write(fd, out_hdr, out_hdr->len) == -1) { return -1; } return 0; } static volatile long syz_fuse_handle_req(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { struct syz_fuse_req_out* req_out = (struct syz_fuse_req_out*)a3; struct fuse_out_header* out_hdr = NULL; char* buf = (char*)a1; int buf_len = (int)a2; int fd = (int)a0; if (!req_out) { return -1; } if (buf_len < FUSE_MIN_READ_BUFFER) { return -1; } int ret = read(fd, buf, buf_len); if (ret == -1) { return -1; } if ((size_t)ret < sizeof(struct fuse_in_header)) { return -1; } const struct fuse_in_header* in_hdr = (const struct fuse_in_header*)buf; if (in_hdr->len > (uint32_t)ret) { return -1; } switch (in_hdr->opcode) { case FUSE_GETATTR: case FUSE_SETATTR: out_hdr = req_out->attr; break; case FUSE_LOOKUP: case FUSE_SYMLINK: case FUSE_LINK: case FUSE_MKNOD: case FUSE_MKDIR: out_hdr = req_out->entry; break; case FUSE_OPEN: case FUSE_OPENDIR: out_hdr = req_out->open; break; case FUSE_STATFS: out_hdr = req_out->statfs; break; case FUSE_RMDIR: case FUSE_RENAME: case FUSE_RENAME2: case FUSE_FALLOCATE: case FUSE_SETXATTR: case FUSE_REMOVEXATTR: case FUSE_FSYNCDIR: case FUSE_FSYNC: case FUSE_SETLKW: case FUSE_SETLK: case FUSE_ACCESS: case FUSE_FLUSH: case FUSE_RELEASE: case FUSE_RELEASEDIR: case FUSE_UNLINK: case FUSE_DESTROY: out_hdr = req_out->init; if (!out_hdr) { return -1; } out_hdr->len = sizeof(struct fuse_out_header); break; case FUSE_READ: out_hdr = req_out->read; break; case FUSE_READDIR: out_hdr = req_out->dirent; break; case FUSE_READDIRPLUS: out_hdr = req_out->direntplus; break; case FUSE_INIT: out_hdr = req_out->init; break; case FUSE_LSEEK: out_hdr = req_out->lseek; break; case FUSE_GETLK: out_hdr = req_out->lk; break; case FUSE_BMAP: out_hdr = req_out->bmap; break; case FUSE_POLL: out_hdr = req_out->poll; break; case FUSE_GETXATTR: case FUSE_LISTXATTR: out_hdr = req_out->getxattr; break; case FUSE_WRITE: case FUSE_COPY_FILE_RANGE: out_hdr = req_out->write; break; case FUSE_FORGET: case FUSE_BATCH_FORGET: return 0; case FUSE_CREATE: out_hdr = req_out->create_open; break; case FUSE_IOCTL: out_hdr = req_out->ioctl; break; case FUSE_STATX: out_hdr = req_out->statx; break; default: return -1; } return fuse_send_response(fd, in_hdr, out_hdr); } #define HWSIM_ATTR_RX_RATE 5 #define HWSIM_ATTR_SIGNAL 6 #define HWSIM_ATTR_ADDR_RECEIVER 1 #define HWSIM_ATTR_FRAME 3 #define WIFI_MAX_INJECT_LEN 2048 static int hwsim_register_socket(struct nlmsg* nlmsg, int sock, int hwsim_family) { struct genlmsghdr genlhdr; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = HWSIM_CMD_REGISTER; netlink_init(nlmsg, hwsim_family, 0, &genlhdr, sizeof(genlhdr)); int err = netlink_send_ext(nlmsg, sock, 0, NULL, false); if (err < 0) { } return err; } static int hwsim_inject_frame(struct nlmsg* nlmsg, int sock, int hwsim_family, uint8_t* mac_addr, uint8_t* data, int len) { struct genlmsghdr genlhdr; uint32_t rx_rate = WIFI_DEFAULT_RX_RATE; uint32_t signal = WIFI_DEFAULT_SIGNAL; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = HWSIM_CMD_FRAME; netlink_init(nlmsg, hwsim_family, 0, &genlhdr, sizeof(genlhdr)); netlink_attr(nlmsg, HWSIM_ATTR_RX_RATE, &rx_rate, sizeof(rx_rate)); netlink_attr(nlmsg, HWSIM_ATTR_SIGNAL, &signal, sizeof(signal)); netlink_attr(nlmsg, HWSIM_ATTR_ADDR_RECEIVER, mac_addr, ETH_ALEN); netlink_attr(nlmsg, HWSIM_ATTR_FRAME, data, len); int err = netlink_send_ext(nlmsg, sock, 0, NULL, false); if (err < 0) { } return err; } static long syz_80211_inject_frame(volatile long a0, volatile long a1, volatile long a2) { uint8_t* mac_addr = (uint8_t*)a0; uint8_t* buf = (uint8_t*)a1; int buf_len = (int)a2; struct nlmsg tmp_msg; if (buf_len < 0 || buf_len > WIFI_MAX_INJECT_LEN) { return -1; } int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC); if (sock < 0) { return -1; } int hwsim_family_id = netlink_query_family_id(&tmp_msg, sock, "MAC80211_HWSIM", false); if (hwsim_family_id < 0) { close(sock); return -1; } int ret = hwsim_register_socket(&tmp_msg, sock, hwsim_family_id); if (ret < 0) { close(sock); return -1; } ret = hwsim_inject_frame(&tmp_msg, sock, hwsim_family_id, mac_addr, buf, buf_len); close(sock); if (ret < 0) { return -1; } return 0; } #define WIFI_MAX_SSID_LEN 32 #define WIFI_JOIN_IBSS_NO_SCAN 0 #define WIFI_JOIN_IBSS_BG_SCAN 1 #define WIFI_JOIN_IBSS_BG_NO_SCAN 2 static long syz_80211_join_ibss(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { char* interface = (char*)a0; uint8_t* ssid = (uint8_t*)a1; int ssid_len = (int)a2; int mode = (int)a3; struct nlmsg tmp_msg; uint8_t bssid[ETH_ALEN] = WIFI_IBSS_BSSID; if (ssid_len < 0 || ssid_len > WIFI_MAX_SSID_LEN) { return -1; } if (mode < 0 || mode > WIFI_JOIN_IBSS_BG_NO_SCAN) { return -1; } int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC); if (sock < 0) { return -1; } int nl80211_family_id = netlink_query_family_id(&tmp_msg, sock, "nl80211", false); if (nl80211_family_id < 0) { close(sock); return -1; } struct join_ibss_props ibss_props = { .wiphy_freq = WIFI_DEFAULT_FREQUENCY, .wiphy_freq_fixed = (mode == WIFI_JOIN_IBSS_NO_SCAN || mode == WIFI_JOIN_IBSS_BG_NO_SCAN), .mac = bssid, .ssid = ssid, .ssid_len = ssid_len}; int ret = nl80211_setup_ibss_interface(&tmp_msg, sock, nl80211_family_id, interface, &ibss_props, false); close(sock); if (ret < 0) { return -1; } if (mode == WIFI_JOIN_IBSS_NO_SCAN) { ret = await_ifla_operstate(&tmp_msg, interface, IF_OPER_UP, false); if (ret < 0) { return -1; } } return 0; } #define USLEEP_FORKED_CHILD (3 * 50 *1000) static long handle_clone_ret(long ret) { if (ret != 0) { return ret; } usleep(USLEEP_FORKED_CHILD); syscall(__NR_exit, 0); while (1) { } } static long syz_clone(volatile long flags, volatile long stack, volatile long stack_len, volatile long ptid, volatile long ctid, volatile long tls) { long sp = (stack + stack_len) & ~15; long ret = (long)syscall(__NR_clone, flags & ~CLONE_VM, sp, ptid, ctid, tls); return handle_clone_ret(ret); } #define MAX_CLONE_ARGS_BYTES 256 static long syz_clone3(volatile long a0, volatile long a1) { unsigned long copy_size = a1; if (copy_size < sizeof(uint64_t) || copy_size > MAX_CLONE_ARGS_BYTES) return -1; char clone_args[MAX_CLONE_ARGS_BYTES]; memcpy(&clone_args, (void*)a0, copy_size); uint64_t* flags = (uint64_t*)&clone_args; *flags &= ~CLONE_VM; return handle_clone_ret((long)syscall(__NR_clone3, &clone_args, copy_size)); } #define RESERVED_PKEY 15 static long syz_pkey_set(volatile long pkey, volatile long val) { if (pkey == RESERVED_PKEY) { errno = EINVAL; return -1; } uint32_t eax = 0; uint32_t ecx = 0; asm volatile("rdpkru" : "=a"(eax) : "c"(ecx) : "edx"); eax &= ~(3 << ((pkey % 16) * 2)); eax |= (val & 3) << ((pkey % 16) * 2); uint32_t edx = 0; asm volatile("wrpkru" ::"a"(eax), "c"(ecx), "d"(edx)); return 0; } static long syz_pidfd_open(volatile long pid, volatile long flags) { if (pid == 1) { pid = 0; } return syscall(__NR_pidfd_open, pid, flags); } struct thread_t { int created, call; event_t ready, done; }; static struct thread_t threads[16]; static void execute_call(int call); static int running; static void* thr(void* arg) { struct thread_t* th = (struct thread_t*)arg; for (;;) { event_wait(&th->ready); event_reset(&th->ready); execute_call(th->call); __atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED); event_set(&th->done); } return 0; } static void execute_one(void) { if (write(1, "executing program\n", sizeof("executing program\n") - 1)) { } int i, call, thread; for (call = 0; call < 63; call++) { for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0])); thread++) { struct thread_t* th = &threads[thread]; if (!th->created) { th->created = 1; event_init(&th->ready); event_init(&th->done); event_set(&th->done); thread_start(thr, th); } if (!event_isset(&th->done)) continue; event_reset(&th->done); th->call = call; __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED); event_set(&th->ready); if (call == 1) break; event_timedwait(&th->done, 50 + (call == 12 ? 500 : 0) + (call == 54 ? 3000 : 0) + (call == 55 ? 3000 : 0) + (call == 56 ? 3000 : 0) + (call == 57 ? 300 : 0) + (call == 58 ? 300 : 0) + (call == 59 ? 3000 : 0) + (call == 60 ? 300 : 0) + (call == 61 ? 300 : 0)); break; } } for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++) sleep_ms(1); close_fds(); } static void execute_one(void); #define WAIT_FLAGS __WALL static void loop(void) { int iter = 0; for (;; iter++) { char cwdbuf[32]; sprintf(cwdbuf, "./%d", iter); if (mkdir(cwdbuf, 0777)) exit(1); reset_loop(); int pid = fork(); if (pid < 0) exit(1); if (pid == 0) { if (chdir(cwdbuf)) exit(1); setup_test(); execute_one(); exit(0); } int status = 0; uint64_t start = current_time_ms(); for (;;) { sleep_ms(10); if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid) break; if (current_time_ms() - start < 5000) continue; kill_and_wait(pid, &status); break; } remove_dir(cwdbuf); } } uint64_t r[41] = {0xffffffffffffffff, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff}; void execute_call(int call) { intptr_t res = 0; switch (call) { case 0: memcpy((void*)0x200000000000, "/dev/ubi_ctrl\000", 14); inject_fault(1); res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x200000000000ul, /*flags=O_NOCTTY|O_NOATIME|O_DIRECT|O_APPEND|O_RDWR*/0x44502, /*mode=*/0); if (res != -1) r[0] = res; break; case 1: STORE_BY_BITMASK(uint8_t, , 0x200000000140, 0xa, 0, 7); STORE_BY_BITMASK(uint8_t, , 0x200000000140, 1, 7, 1); *(uint32_t*)0x200000000144 = 0xc5; *(uint32_t*)0x200000000148 = 1; *(uint64_t*)0x200000000150 = 0x200000000040; memcpy((void*)0x200000000040, "\xe1\xee\x87\xa8\xf7\x6c\x25\x7b\x75\xc1\x07\x3c\x70\x58\xbe\x82\xfe\x33\x62\xbb\xcc\xa5\x4d\xf5\x20\xd1\xca\x8f\xa9\x1b\x50\x81\x0f\x87\x6d\x1f\xab\x0a\x1c\xc2\x14\xc3\x5f\x4e\x26\x6e\x71\x64\x3d\x8c\x95\x98\x80\x87\xe4\x6a\x87\xc1\xa7\x15\xef\xfe\x06\x16\x9a\xb6\x5f\xa1\x8e\x54\x14\x40\x4f\x30\xc0\x00\x55\x61\x39\x7e\xd1\xd9\x55\x7c\x66\xa9\x94\xb9\x54\xef\xa7\x14\x98\x5a\x2a\xe4\x09\xdf\x81\x11\xfa\x8a\x36\x14\x08\x73\x4d\x15\xb3\x0c\xd9\xab\x3f\xa5\x0e\x08\x8b\x3d\x2b\xaf\xdc\x68\x9e\xa3\xcb\x7e\x52\xa9\xfc\x7f\x5d\x48\xd2\x45\xd4\x09\x7b\xb9\x33\x72\x5b\xd9\xe2\x93\x71\xcd\x77\x80\xb4\xec\x8d\x6e\x2d\xbf\x86\x1a\xad\x04\xd6\x59\x4f\x5e\xbd\x2f\xfa\xb1\xe8\xa6\x8c\x51\x57\xca\xe2\xf4\x6f\x6f\xa3\xae\xac\x0e\x3f\x8b\x7b\x97\x63\x0f\x34\x6b\xc3\x27\x6e\x53\xca\x72\xb4\x17\xf8", 197); syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0xc0185502, /*arg=*/0x200000000140ul); break; case 2: *(uint8_t*)0x200000000180 = 4; *(uint8_t*)0x200000000181 = 9; syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x4002f516, /*arg=*/0x200000000180ul); for (int i = 0; i < 4; i++) { syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x4002f516, /*arg=*/0x200000000180ul); } break; case 3: *(uint32_t*)0x2000000001c0 = -1; syscall(__NR_setsockopt, /*fd=*/r[0], /*level=*/6, /*optname=*/0x13, /*optval=*/0x2000000001c0ul, /*optlen=*/4ul); break; case 4: *(uint32_t*)0x200000000200 = 4; *(uint16_t*)0x200000000208 = 0xa; *(uint16_t*)0x20000000020a = htobe16(0x4e20); *(uint32_t*)0x20000000020c = htobe32(4); *(uint8_t*)0x200000000210 = 0xfc; *(uint8_t*)0x200000000211 = 0; memset((void*)0x200000000212, 0, 13); *(uint8_t*)0x20000000021f = 1; *(uint32_t*)0x200000000220 = 0; *(uint16_t*)0x200000000288 = 0xa; *(uint16_t*)0x20000000028a = htobe16(0x4e21); *(uint32_t*)0x20000000028c = htobe32(1); *(uint8_t*)0x200000000290 = 0xfe; *(uint8_t*)0x200000000291 = 0x80; memset((void*)0x200000000292, 0, 13); *(uint8_t*)0x20000000029f = 0xaa; *(uint32_t*)0x2000000002a0 = 9; syscall(__NR_setsockopt, /*fd=*/r[0], /*level=*/0x29, /*optname=MCAST_BLOCK_SOURCE*/0x2b, /*optval=*/0x200000000200ul, /*optlen=*/0x108ul); break; case 5: *(uint32_t*)0x200000000340 = 0x4b; memcpy((void*)0x200000000344, "\x0c\xbd\x83\x9a\x79\x58\x33\x77\x5d\x88\x69\x41\xba\x50\xa6\x62\xb8\x10\x8f\x94\x6a\xef\xdd\x5c\xb7\xb6\xeb\x3a\x78\xa0\x64\x73\xe5\x82\x89\xee\x95\x41\xad\x35\x45\x8f\xa9\xd6\xb6\x44\xbf\x56\xfd\xbb\xe1\xc4\x40\x04\x3f\x67\x9b\x3a\x03\xcf\x34\xcc\x05\xed\xc7\x36\xad\x84\x88\x52\xc6\x93\xb8\x9b\x55\x1c\xaa\xbf\x8c\xae\xdd\x7f\x8e\xe9\x80\x29\x49\x11\xc0\x2a\xcd\xb1\x10\x5f\x36\xe9\x73\x61\x6e\xb6\x09\x53\x5e\x68\xc8\xaf\xfb\x3c\x93\x5c\x76\x0f\x88\x5f\xa2\xa4\xb4\x83\x8d\x7d\xb0\x09\xe9\x19\xe5\xab\x59\x34\xb3\xb8\x5f\x8f\xf9\xe2\xaf\xc0\xa1\x86\xc9\xdc\xf9\xab\x5c\x9f\x6e\xb4\x56\x20\xdd\xbd\xa7\xe2\xa4\x67\x7a\x1e\x7c\x69\x4b\x3e\x00\xe3\x5a\x16\xd8\xe5\x25\x26\xd1\x35\x3b\xb0\xfd\x60\x7f\xa0\xf0\x7d\x45\x80\x81\x02\xe3\x8c\x66\xb6\xb5\xbf\xe0\x53\x03\x6b\x95\x6a\x96\x70\x1a\x8d\x02\x58\x8e\x7a\x7c\xc1\xf8\x4a\x3c\x0a\x3b\xa7\x80\xd5\xbb\x49\x4e\x86\x01\x75\x98\x9a\xb6\xec\x07\xd1\x35\x33\x71\x5c\xfb\x45\x84\xfd\x2a\x81\x86\xd7\x4b\xb7\x40\x17\x20\x6d\x94\x0f\x25\xfa\x7e\xc2\xde\xbe\x5a\x31\xcf\x5c\x23\x30", 256); syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x41045508, /*arg=*/0x200000000340ul); break; case 6: *(uint64_t*)0x200000000580 = 0x200000000480; *(uint64_t*)0x200000000588 = 0x8000; *(uint32_t*)0x200000000590 = 0x1800; *(uint32_t*)0x200000000594 = 1; *(uint32_t*)0x200000000598 = 3; syscall(__NR_setsockopt, /*fd=*/r[0], /*level=*/0x11b, /*opt=*/4, /*val=*/0x200000000580ul, /*len=*/0x20ul); break; case 7: *(uint64_t*)0x2000000005c0 = 4; syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x127d, /*arg=*/0x2000000005c0ul); break; case 8: *(uint32_t*)0x200000000604 = 0; *(uint32_t*)0x200000000608 = r[0]; *(uint32_t*)0x20000000060c = 0; syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0xc01864c2, /*arg=*/0x200000000600ul); break; case 9: *(uint32_t*)0x2000000006c0 = 0; syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0xc00464c9, /*arg=*/0x2000000006c0ul); break; case 10: memset((void*)0x200000000000, 255, 6); STORE_BY_BITMASK(uint8_t, , 0x200000000040, 0, 0, 2); STORE_BY_BITMASK(uint8_t, , 0x200000000040, 2, 2, 2); STORE_BY_BITMASK(uint8_t, , 0x200000000040, 0xb, 4, 4); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 0, 0, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 1, 1, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 0, 2, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 1, 3, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 1, 4, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 0, 5, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 0, 6, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 1, 7, 1); STORE_BY_BITMASK(uint16_t, , 0x200000000042, 2, 0, 15); STORE_BY_BITMASK(uint16_t, , 0x200000000043, 0, 7, 1); *(uint8_t*)0x200000000044 = 8; *(uint8_t*)0x200000000045 = 2; *(uint8_t*)0x200000000046 = 0x11; *(uint8_t*)0x200000000047 = 0; *(uint8_t*)0x200000000048 = 0; *(uint8_t*)0x200000000049 = 1; *(uint8_t*)0x20000000004a = 8; *(uint8_t*)0x20000000004b = 2; *(uint8_t*)0x20000000004c = 0x11; *(uint8_t*)0x20000000004d = 0; *(uint8_t*)0x20000000004e = 0; *(uint8_t*)0x20000000004f = 0; memset((void*)0x200000000050, 80, 6); STORE_BY_BITMASK(uint16_t, , 0x200000000056, 9, 0, 4); STORE_BY_BITMASK(uint16_t, , 0x200000000056, 0x5bb, 4, 12); STORE_BY_BITMASK(uint8_t, , 0x200000000058, 1, 0, 4); STORE_BY_BITMASK(uint8_t, , 0x200000000058, 1, 4, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000058, 1, 5, 2); STORE_BY_BITMASK(uint8_t, , 0x200000000058, 1, 7, 1); *(uint8_t*)0x200000000059 = 9; STORE_BY_BITMASK(uint16_t, , 0x20000000005a, 0, 0, 1); STORE_BY_BITMASK(uint16_t, , 0x20000000005a, 2, 1, 15); STORE_BY_BITMASK(uint8_t, , 0x20000000005c, 0, 0, 2); STORE_BY_BITMASK(uint8_t, , 0x20000000005c, 0, 2, 2); STORE_BY_BITMASK(uint8_t, , 0x20000000005c, 0, 4, 2); STORE_BY_BITMASK(uint8_t, , 0x20000000005c, 3, 6, 2); STORE_BY_BITMASK(uint8_t, , 0x20000000005d, 0, 0, 1); STORE_BY_BITMASK(uint8_t, , 0x20000000005d, 0, 1, 5); STORE_BY_BITMASK(uint8_t, , 0x20000000005d, 1, 6, 1); STORE_BY_BITMASK(uint8_t, , 0x20000000005d, 0, 7, 1); memcpy((void*)0x20000000005e, "\x05\x5b\xa7\x19\x28\xa7\x9f\x86\x25\x94\x2b\x8e\x22\xa6\x2e\x7d\x0e\xf5\xd2\x6a\xfb\x59\x23\xf0\xa1", 25); syz_80211_inject_frame(/*mac_addr=*/0x200000000000, /*buf=*/0x200000000040, /*buf_len=*/0x37); break; case 11: memcpy((void*)0x200000000080, "wlan0\000", 6); memcpy((void*)0x2000000000c0, "\xf2\x0f\x01\x43\x92\x29\x17\x2e\xc7\x63\x7d\x66\xe2\xf0\x75", 15); syz_80211_join_ibss(/*interface=*/0x200000000080, /*ssid=*/0x2000000000c0, /*ssid_len=*/0xf, /*join_mode=JOIN_IBSS_BG_NO_SCAN*/2); break; case 12: memcpy((void*)0x200000000100, "bpf_lsm_inode_getsecurity\000", 26); syz_btf_id_by_name(/*name=*/0x200000000100); break; case 13: memcpy((void*)0x200000000140, "\xff\x42\x7f\x0e\x46\x59\xab\x58\x93\xd3\xba\xdb\x31\xb3\xb1\xb8\x9d\xa5\x2b\x0f\x3d\x34\x89\xa1\x8a\x58\x37\xba\x6e\x04\xf2\x1c\xf0\x58\x1d\xe7\x94\x6c\x2e\x29\xad\xef\x18\x03\x6a\x10\xce\x36\x12\x50\xa5\x66\x70\x64\xb4\xd4\x56\xc6\x4c\x30\x7d\x63\xcf\xe3\x42\x2c\x3f\xaf\xd4\x50\x31\x5e\x83\x66", 74); memcpy((void*)0x200000000240, "\xb2\x01\xd1\x39\xa4\x34\x4e\x46\x3d\x89\x91\x3b\xee\x9c\x68\xaf\x3f\x34\x09\x0b\x9f\x62\x44\xaf\x88\xc8\xfe\x07\xce\x4f\xfe\x9b\x81\x21\x0d\xa0\xfc\x44\x55\x9d\x98\x5a\xd5\xbb\x1d\xc9\x67\x2c\xe4\xd1\xdf\x55\x4a\xaf\xb7\x80\x53\xf4", 58); res = -1; res = syz_clone(/*flags=CLONE_PIDFD*/0x1000, /*stack=*/0x200000000140, /*stack_len=*/0x4a, /*parentid=*/0x2000000001c0, /*childtid=*/0x200000000200, /*tls=*/0x200000000240); if (res != -1) r[1] = res; break; case 14: *(uint64_t*)0x200000000440 = 0x100400; *(uint64_t*)0x200000000448 = 0x200000000280; *(uint64_t*)0x200000000450 = 0x2000000002c0; *(uint64_t*)0x200000000458 = 0x200000000300; *(uint32_t*)0x200000000460 = 0x2a; *(uint64_t*)0x200000000468 = 0x200000000340; *(uint64_t*)0x200000000470 = 0x15; *(uint64_t*)0x200000000478 = 0x200000000380; *(uint64_t*)0x200000000480 = 0x200000000400; *(uint32_t*)0x200000000400 = r[1]; *(uint64_t*)0x200000000488 = 1; *(uint32_t*)0x200000000490 = -1; res = -1; res = syz_clone3(/*args=*/0x200000000440, /*size=*/0x58); if (res != -1) { r[2] = res; r[3] = *(uint32_t*)0x200000000280; r[4] = *(uint32_t*)0x2000000002c0; r[5] = *(uint32_t*)0x200000000300; } break; case 15: memcpy((void*)0x2000000004c0, "./file0\000", 8); syz_create_resource(/*file=*/0x2000000004c0); break; case 16: memcpy((void*)0x200000000740, "/dev/cuse\000", 10); res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x200000000740ul, /*flags=*/2, /*mode=*/0); if (res != -1) r[6] = res; break; case 17: *(uint32_t*)0x200000002a80 = 7; *(uint32_t*)0x200000002a84 = 4; *(uint32_t*)0x200000002a88 = r[5]; *(uint32_t*)0x200000002a90 = 0; *(uint64_t*)0x200000002a98 = 0x100000000; *(uint64_t*)0x200000002aa0 = 3; res = syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0xc0286405, /*arg=*/0x200000002a80ul); if (res != -1) r[7] = *(uint32_t*)0x200000002a90; break; case 18: *(uint32_t*)0x200000002b80 = 1; *(uint32_t*)0x200000002b84 = 0; *(uint32_t*)0x200000002b88 = 0xee00; *(uint32_t*)0x200000002b8c = 5; *(uint32_t*)0x200000002b90 = 9; *(uint32_t*)0x200000002b94 = 0x8c; *(uint16_t*)0x200000002b98 = 6; *(uint32_t*)0x200000002b9c = 0xe0000; *(uint64_t*)0x200000002ba0 = 3; *(uint64_t*)0x200000002ba8 = 6; *(uint64_t*)0x200000002bb0 = 0x2c54; *(uint32_t*)0x200000002bb8 = 0x7fffffff; *(uint32_t*)0x200000002bbc = 5; *(uint16_t*)0x200000002bc0 = 3; *(uint16_t*)0x200000002bc2 = 0; *(uint64_t*)0x200000002bc8 = 0x200000002ac0; memcpy((void*)0x200000002ac0, "\x34\xd1\x45\x92\x33\x0d\x2e\xff\xe2\xb2\x42\xce\x1c\x79\xf9\x7a\x73\x7d\xc0\xf7\x74\x5d\x84\xee\xc4\x69\x04\x8b\xa4\x77\x2d\x3c\xa2\xf3\x4e\x3a\x83\xb5\xed\xad\xf6\x55\x0e\x5b\x41\x2c\xf5\xee\x74\x9b\x33\x24\xb3\x00\x32\xad\x2a\xe1\x4c\xfa\x29\xef\x4e\xcf\x97\x41\x6f\xdc\x53\xd7\x3b\xb8\x0e\xa1\x39\xaa\xc1\xbf\x36\x4d\xdc\xbe\x74\x09\x34\x21\x55\xae\x12\x6f\x63\xd9\xe3\xab\x1d\x51\x04\xbe\xfd\xd9", 100); *(uint64_t*)0x200000002bd0 = 0x200000002b40; memcpy((void*)0x200000002b40, "\xe5\x50\x41\x3c\x2f\x46\x9c\x9e\xf0\x8e\xb7\x19\x3b\x0a\x24\x2e\x58\xbe\xfe\x01\x2a\xa8\x9d\x7c", 24); res = syscall(__NR_shmctl, /*shmid=*/8, /*cmd=*/2ul, /*buf=*/0x200000002b80ul); if (res != -1) r[8] = *(uint32_t*)0x200000002b88; break; case 19: res = syscall(__NR_setfsuid, /*uid=*/0xee01); if (res != -1) r[9] = res; break; case 20: res = syscall(__NR_getuid); if (res != -1) r[10] = res; break; case 21: res = syscall(__NR_fstat, /*fd=*/r[3], /*statbuf=*/0x200000002ec0ul); if (res != -1) { r[11] = *(uint32_t*)0x200000002ed8; r[12] = *(uint32_t*)0x200000002edc; } break; case 22: *(uint32_t*)0x200000002f40 = 9; *(uint32_t*)0x200000002f44 = 6; *(uint32_t*)0x200000002f48 = -1; *(uint32_t*)0x200000002f50 = 0xee01; *(uint64_t*)0x200000002f58 = 9; *(uint64_t*)0x200000002f60 = 8; res = syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0xc0286405, /*arg=*/0x200000002f40ul); if (res != -1) r[13] = *(uint32_t*)0x200000002f50; break; case 23: *(uint64_t*)0x200000002f80 = 1; *(uint32_t*)0x200000002f88 = r[3]; *(uint32_t*)0x200000002f90 = r[3]; *(uint64_t*)0x200000002f98 = 0; *(uint64_t*)0x200000002fa0 = 0; memset((void*)0x200000002fa8, 0, 16); *(uint64_t*)0x200000002fb8 = 0x100; *(uint16_t*)0x200000002fc0 = 6; *(uint16_t*)0x200000002fc2 = 4; *(uint32_t*)0x200000002fc4 = 0; *(uint32_t*)0x200000002fc8 = 0xee01; *(uint32_t*)0x200000002fcc = 4; *(uint32_t*)0x200000002fd0 = 2; *(uint64_t*)0x200000002fd8 = 0xe78bc90; *(uint64_t*)0x200000002fe0 = 0x9e350; *(uint32_t*)0x200000002fe8 = 0x10; *(uint64_t*)0x200000002ff0 = 4; *(uint32_t*)0x200000002ff8 = 7; *(uint64_t*)0x200000003000 = 0x3a83; *(uint32_t*)0x200000003008 = 0x80000000; *(uint64_t*)0x200000003010 = 0xff; *(uint32_t*)0x200000003018 = 8; *(uint32_t*)0x20000000301c = 7; *(uint32_t*)0x200000003020 = 7; *(uint32_t*)0x200000003024 = 5; *(uint16_t*)0x200000003028 = 0xd275; *(uint16_t*)0x20000000302a = 6; *(uint16_t*)0x20000000302c = 1; *(uint16_t*)0x20000000302e = 0xff74; *(uint16_t*)0x200000003030 = 5; memset((void*)0x200000003032, 0, 2); *(uint32_t*)0x200000003034 = 0xf0e; *(uint32_t*)0x200000003038 = 0x400; *(uint16_t*)0x20000000303c = 2; *(uint16_t*)0x20000000303e = 0x8001; res = syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0xc0c0586d, /*arg=*/0x200000002f80ul); if (res != -1) { r[14] = *(uint32_t*)0x200000002f88; r[15] = *(uint32_t*)0x200000002f90; r[16] = *(uint32_t*)0x200000002fc8; } break; case 24: *(uint32_t*)0x2000000030c0 = 0x80; *(uint32_t*)0x2000000030c4 = 0; *(uint32_t*)0x2000000030c8 = 0xee01; *(uint32_t*)0x2000000030cc = 8; *(uint32_t*)0x2000000030d0 = 3; *(uint32_t*)0x2000000030d4 = 3; *(uint16_t*)0x2000000030d8 = 6; *(uint64_t*)0x2000000030e0 = 0x200000003040; *(uint8_t*)0x200000003040 = 0xf; *(uint64_t*)0x2000000030e8 = 0x200000003080; *(uint8_t*)0x200000003080 = 0x29; *(uint64_t*)0x2000000030f0 = 0xfffffffffffff801; *(uint64_t*)0x2000000030f8 = 0x6b4c; *(uint64_t*)0x200000003100 = 0; *(uint64_t*)0x200000003108 = 3; *(uint64_t*)0x200000003110 = 0x800; *(uint16_t*)0x200000003118 = 2; *(uint16_t*)0x20000000311a = 0xbf09; *(uint16_t*)0x20000000311c = 3; *(uint32_t*)0x200000003120 = r[2]; *(uint32_t*)0x200000003124 = r[4]; res = syscall(__NR_msgctl, /*msqid=*/2, /*cmd=*/0ul, /*buf=*/0x2000000030c0ul); if (res != -1) r[17] = *(uint32_t*)0x2000000030c4; break; case 25: *(uint32_t*)0x200000003140 = 0xb407; *(uint32_t*)0x200000003144 = 0xee01; *(uint64_t*)0x200000003148 = 8; *(uint64_t*)0x200000003150 = 8; res = syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0x4018aee2, /*arg=*/0x200000003140ul); if (res != -1) r[18] = *(uint32_t*)0x200000003144; break; case 26: memcpy((void*)0x200000003180, "./file0\000", 8); *(uint32_t*)0x2000000031c0 = 8; *(uint32_t*)0x2000000031c4 = 0xfffffffe; *(uint64_t*)0x2000000031c8 = 0; *(uint32_t*)0x2000000031d0 = 0xa; *(uint32_t*)0x2000000031d4 = 0; *(uint32_t*)0x2000000031d8 = 0xee00; *(uint16_t*)0x2000000031dc = 0xf; *(uint16_t*)0x2000000031de = 0x5d3e; *(uint64_t*)0x2000000031e0 = 5; *(uint64_t*)0x2000000031e8 = 0x10; *(uint64_t*)0x2000000031f0 = 0xff89; *(uint64_t*)0x2000000031f8 = 0x100; *(uint64_t*)0x200000003200 = 0xf; *(uint32_t*)0x200000003208 = 8; *(uint32_t*)0x20000000320c = 0; *(uint64_t*)0x200000003210 = 0xfff; *(uint32_t*)0x200000003218 = 2; *(uint32_t*)0x20000000321c = 0; *(uint64_t*)0x200000003220 = 3; *(uint32_t*)0x200000003228 = 0x7fff; *(uint32_t*)0x20000000322c = 0; *(uint64_t*)0x200000003230 = -1; *(uint32_t*)0x200000003238 = 9; *(uint32_t*)0x20000000323c = 0; *(uint32_t*)0x200000003240 = 0; *(uint32_t*)0x200000003244 = 3; *(uint32_t*)0x200000003248 = 7; *(uint32_t*)0x20000000324c = 0x8d6; *(uint64_t*)0x200000003250 = 0x383d; *(uint32_t*)0x200000003258 = 4; *(uint32_t*)0x20000000325c = 0xb0d4; *(uint64_t*)0x200000003260 = 0x503; *(uint32_t*)0x200000003268 = 2; *(uint32_t*)0x20000000326c = 0; *(uint32_t*)0x200000003270 = 5; *(uint32_t*)0x200000003274 = 2; *(uint64_t*)0x200000003278 = 0xfffffffffffffffb; *(uint64_t*)0x200000003280 = 0xff; *(uint64_t*)0x200000003288 = 3; *(uint64_t*)0x200000003290 = 0x259; *(uint64_t*)0x200000003298 = 0xbe9; *(uint64_t*)0x2000000032a0 = 0xff; *(uint64_t*)0x2000000032a8 = 6; *(uint64_t*)0x2000000032b0 = 0x800; *(uint64_t*)0x2000000032b8 = 9; res = syscall(__NR_statx, /*dfd=*/0xffffff9c, /*filename=*/0x200000003180ul, /*flags=*/4, /*mask=*/2, /*buffer=*/0x2000000031c0ul); if (res != -1) r[19] = *(uint32_t*)0x2000000031d4; break; case 27: *(uint32_t*)0x200000004300 = 5; *(uint32_t*)0x200000004304 = 0xee00; *(uint32_t*)0x200000004308 = 0xee00; *(uint32_t*)0x20000000430c = 3; *(uint32_t*)0x200000004310 = 0x7ff; *(uint32_t*)0x200000004314 = 2; *(uint16_t*)0x200000004318 = 5; *(uint32_t*)0x20000000431c = 2; *(uint64_t*)0x200000004320 = 0x401; *(uint64_t*)0x200000004328 = 3; *(uint64_t*)0x200000004330 = 0xfffffffffffffffe; *(uint32_t*)0x200000004338 = r[1]; *(uint32_t*)0x20000000433c = r[4]; *(uint16_t*)0x200000004340 = 0xfffe; *(uint16_t*)0x200000004342 = 0; *(uint64_t*)0x200000004348 = 0x2000000032c0; memcpy((void*)0x2000000032c0, 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4096); *(uint64_t*)0x200000004350 = 0x2000000042c0; memcpy((void*)0x2000000042c0, "\x14\xdc\x2c\x36\xc1\xa4\x73\x0f\x33\xf0\xa4\x77\x56\xb4\x37\x79\x2e\x9a\xc7\x8f\x74\x2f\x82\x1e\x32\x83\x41\xe0\x2b", 29); res = syscall(__NR_shmctl, /*shmid=*/3, /*cmd=*/1ul, /*buf=*/0x200000004300ul); if (res != -1) { r[20] = *(uint32_t*)0x200000004308; r[21] = *(uint32_t*)0x20000000433c; } break; case 28: memcpy((void*)0x200000004600, "./file0\000", 8); res = syscall(__NR_newfstatat, /*dfd=*/0xffffffffffffff9cul, /*file=*/0x200000004600ul, /*statbuf=*/0x200000004640ul, /*flag=*/0ul); if (res != -1) r[22] = *(uint32_t*)0x200000004658; break; case 29: res = syscall(__NR_fstat, /*fd=*/r[3], /*statbuf=*/0x2000000046c0ul); if (res != -1) { r[23] = *(uint32_t*)0x2000000046d8; r[24] = *(uint32_t*)0x2000000046dc; } break; case 30: *(uint32_t*)0x2000000058c0 = -1; *(uint32_t*)0x2000000058c4 = 0xee00; *(uint32_t*)0x2000000058c8 = -1; *(uint32_t*)0x2000000058cc = 2; *(uint32_t*)0x2000000058d0 = 9; *(uint32_t*)0x2000000058d4 = 2; *(uint16_t*)0x2000000058d8 = 4; *(uint32_t*)0x2000000058dc = 6; *(uint64_t*)0x2000000058e0 = 4; *(uint64_t*)0x2000000058e8 = 4; *(uint64_t*)0x2000000058f0 = 1; *(uint32_t*)0x2000000058f8 = 0; *(uint32_t*)0x2000000058fc = r[4]; *(uint16_t*)0x200000005900 = 0x40; *(uint16_t*)0x200000005902 = 0; *(uint64_t*)0x200000005908 = 0x200000004840; memcpy((void*)0x200000004840, "\xbe\x99\x9e\xee\x25\x89\x59\xe9\x3a\x2a\xa6\x8d\xc2\xcb\x1d\x93\xb8\x19\xd2\xb9\xd9\xe6\x78\xe2\xe2\x50\x6d\x54\x51\x0e\x92\x07\x28\xd7\x58\x15\xbb\x80\x27\xe6\xa0\x21\xfe\xbb\x8f\x09\x96\xf8\xad\xd6\x87\x7b\x74\xce\x5e\xac\xe7\x45\x04\xcf\x3a\x4f\x3a\xc4\x6a\x5a\x59\x40\x03\x42\x35\x19\x40\xbf\xb8\x76\x7d\xd9\x95\x5c\x9e\x9a\x99\x41", 84); *(uint64_t*)0x200000005910 = 0x2000000048c0; memcpy((void*)0x2000000048c0, 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4096); res = syscall(__NR_shmctl, /*shmid=*/0, /*cmd=*/7, /*buf=*/0x2000000058c0ul); if (res != -1) r[25] = *(uint32_t*)0x2000000058c4; break; case 31: memcpy((void*)0x200000005940, "./file0\000", 8); *(uint64_t*)0x200000005980 = 0x100000000; *(uint64_t*)0x200000005988 = 0x7d80; *(uint64_t*)0x200000005990 = 1; *(uint32_t*)0x200000005998 = 0x40; *(uint32_t*)0x20000000599c = -1; *(uint32_t*)0x2000000059a0 = 0; *(uint32_t*)0x2000000059a4 = 0; *(uint64_t*)0x2000000059a8 = 7; *(uint64_t*)0x2000000059b0 = 0xfffffffffffffffb; *(uint64_t*)0x2000000059b8 = 0; *(uint64_t*)0x2000000059c0 = 2; *(uint64_t*)0x2000000059c8 = 0xe6; *(uint64_t*)0x2000000059d0 = 2; *(uint64_t*)0x2000000059d8 = 4; *(uint64_t*)0x2000000059e0 = 0xa03f; *(uint64_t*)0x2000000059e8 = 0x10; *(uint64_t*)0x2000000059f0 = 7; memset((void*)0x2000000059f8, 0, 24); res = syscall(__NR_lstat, /*filename=*/0x200000005940ul, /*statbuf=*/0x200000005980ul); if (res != -1) { r[26] = *(uint32_t*)0x20000000599c; r[27] = *(uint32_t*)0x2000000059a0; } break; case 32: memcpy((void*)0x200000000780, 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8192); *(uint64_t*)0x200000005b80 = 0x200000002780; *(uint32_t*)0x200000002780 = 0x50; *(uint32_t*)0x200000002784 = 0xffffffda; *(uint64_t*)0x200000002788 = 7; *(uint32_t*)0x200000002790 = 7; *(uint32_t*)0x200000002794 = 0x2d; *(uint32_t*)0x200000002798 = 8; *(uint32_t*)0x20000000279c = 0x1020000; *(uint16_t*)0x2000000027a0 = 0xfffc; *(uint16_t*)0x2000000027a2 = 0x401; *(uint32_t*)0x2000000027a4 = 0x12; *(uint32_t*)0x2000000027a8 = 6; *(uint16_t*)0x2000000027ac = 0; *(uint16_t*)0x2000000027ae = 0; *(uint32_t*)0x2000000027b0 = 0x40; *(uint32_t*)0x2000000027b4 = 0xce; memset((void*)0x2000000027b8, 0, 24); *(uint64_t*)0x200000005b88 = 0x200000002800; *(uint32_t*)0x200000002800 = 0x18; *(uint32_t*)0x200000002804 = 0; *(uint64_t*)0x200000002808 = 6; *(uint64_t*)0x200000002810 = 0xbb; *(uint64_t*)0x200000005b90 = 0x200000002840; *(uint32_t*)0x200000002840 = 0x18; *(uint32_t*)0x200000002844 = 0; *(uint64_t*)0x200000002848 = 1; *(uint64_t*)0x200000002850 = 5; *(uint64_t*)0x200000005b98 = 0x200000002880; *(uint32_t*)0x200000002880 = 0x18; *(uint32_t*)0x200000002884 = 0xfffffff5; *(uint64_t*)0x200000002888 = 4; *(uint32_t*)0x200000002890 = 0; *(uint32_t*)0x200000002894 = 0; *(uint64_t*)0x200000005ba0 = 0x2000000028c0; *(uint32_t*)0x2000000028c0 = 0x18; *(uint32_t*)0x2000000028c4 = 0xfffffffe; *(uint64_t*)0x2000000028c8 = 3; *(uint32_t*)0x2000000028d0 = 7; *(uint32_t*)0x2000000028d4 = 0; *(uint64_t*)0x200000005ba8 = 0x200000002900; *(uint32_t*)0x200000002900 = 0x28; *(uint32_t*)0x200000002904 = 0; *(uint64_t*)0x200000002908 = 0x300000000000; *(uint64_t*)0x200000002910 = 1; *(uint64_t*)0x200000002918 = 8; *(uint32_t*)0x200000002920 = 0; *(uint32_t*)0x200000002924 = r[1]; *(uint64_t*)0x200000005bb0 = 0x200000002940; *(uint32_t*)0x200000002940 = 0x60; *(uint32_t*)0x200000002944 = 0; *(uint64_t*)0x200000002948 = 0xc; *(uint64_t*)0x200000002950 = 0; *(uint64_t*)0x200000002958 = 0xff; *(uint64_t*)0x200000002960 = 2; *(uint64_t*)0x200000002968 = 0x41; *(uint64_t*)0x200000002970 = 0x40; *(uint32_t*)0x200000002978 = 6; *(uint32_t*)0x20000000297c = 0x8dd; *(uint32_t*)0x200000002980 = 5; *(uint32_t*)0x200000002984 = 0; memset((void*)0x200000002988, 0, 24); *(uint64_t*)0x200000005bb8 = 0x2000000029c0; *(uint32_t*)0x2000000029c0 = 0x18; *(uint32_t*)0x2000000029c4 = 0xffffffda; *(uint64_t*)0x2000000029c8 = 9; *(uint32_t*)0x2000000029d0 = 5; *(uint32_t*)0x2000000029d4 = 0; *(uint64_t*)0x200000005bc0 = 0x200000002a00; *(uint32_t*)0x200000002a00 = 0x16; *(uint32_t*)0x200000002a04 = 0; *(uint64_t*)0x200000002a08 = 6; memset((void*)0x200000002a10, 255, 6); *(uint64_t*)0x200000005bc8 = 0x200000002a40; *(uint32_t*)0x200000002a40 = 0x20; *(uint32_t*)0x200000002a44 = 0; *(uint64_t*)0x200000002a48 = 0; *(uint64_t*)0x200000002a50 = 0; *(uint32_t*)0x200000002a58 = 0x1e; *(uint32_t*)0x200000002a5c = 0; *(uint64_t*)0x200000005bd0 = 0x200000002c00; *(uint32_t*)0x200000002c00 = 0x78; *(uint32_t*)0x200000002c04 = 0xfffffffe; *(uint64_t*)0x200000002c08 = 3; *(uint64_t*)0x200000002c10 = 8; *(uint32_t*)0x200000002c18 = 6; *(uint32_t*)0x200000002c1c = 0; *(uint64_t*)0x200000002c20 = 0; *(uint64_t*)0x200000002c28 = 8; *(uint64_t*)0x200000002c30 = 2; *(uint64_t*)0x200000002c38 = 8; *(uint64_t*)0x200000002c40 = 0x80; *(uint64_t*)0x200000002c48 = 5; *(uint32_t*)0x200000002c50 = 0x3482; *(uint32_t*)0x200000002c54 = 0xa246; *(uint32_t*)0x200000002c58 = 0x80000000; *(uint32_t*)0x200000002c5c = 0x4000; *(uint32_t*)0x200000002c60 = 0x3e08; *(uint32_t*)0x200000002c64 = r[7]; *(uint32_t*)0x200000002c68 = r[8]; *(uint32_t*)0x200000002c6c = 0x7f; *(uint32_t*)0x200000002c70 = 3; *(uint32_t*)0x200000002c74 = 0; *(uint64_t*)0x200000005bd8 = 0x200000002c80; *(uint32_t*)0x200000002c80 = 0x90; *(uint32_t*)0x200000002c84 = 0xffffffda; *(uint64_t*)0x200000002c88 = 2; *(uint64_t*)0x200000002c90 = 6; *(uint64_t*)0x200000002c98 = 0; *(uint64_t*)0x200000002ca0 = 2; *(uint64_t*)0x200000002ca8 = 8; *(uint32_t*)0x200000002cb0 = 0xfffffffc; *(uint32_t*)0x200000002cb4 = 9; *(uint64_t*)0x200000002cb8 = 1; *(uint64_t*)0x200000002cc0 = 3; *(uint64_t*)0x200000002cc8 = 2; *(uint64_t*)0x200000002cd0 = 5; *(uint64_t*)0x200000002cd8 = 0x761; *(uint64_t*)0x200000002ce0 = 7; *(uint32_t*)0x200000002ce8 = 0x58d95c3d; *(uint32_t*)0x200000002cec = 7; *(uint32_t*)0x200000002cf0 = 7; *(uint32_t*)0x200000002cf4 = 0x8000; *(uint32_t*)0x200000002cf8 = 8; *(uint32_t*)0x200000002cfc = r[9]; *(uint32_t*)0x200000002d00 = 0xee01; *(uint32_t*)0x200000002d04 = 0; *(uint32_t*)0x200000002d08 = 0x400; *(uint32_t*)0x200000002d0c = 0; *(uint64_t*)0x200000005be0 = 0x200000002d40; *(uint32_t*)0x200000002d40 = 0x158; *(uint32_t*)0x200000002d44 = 0; *(uint64_t*)0x200000002d48 = 0x8000000000000001; *(uint64_t*)0x200000002d50 = 0; *(uint64_t*)0x200000002d58 = 0; *(uint32_t*)0x200000002d60 = 0; *(uint32_t*)0x200000002d64 = 5; *(uint64_t*)0x200000002d68 = 2; *(uint64_t*)0x200000002d70 = 0x291; *(uint32_t*)0x200000002d78 = 3; *(uint32_t*)0x200000002d7c = 0; memcpy((void*)0x200000002d80, "a-$", 3); *(uint64_t*)0x200000002d88 = 6; *(uint64_t*)0x200000002d90 = 1; *(uint32_t*)0x200000002d98 = 0x1a; *(uint32_t*)0x200000002d9c = 0x5df9; memcpy((void*)0x200000002da0, "bpf_lsm_inode_getsecurity\000", 26); *(uint64_t*)0x200000002dc0 = 5; *(uint64_t*)0x200000002dc8 = 4; *(uint32_t*)0x200000002dd0 = 0; *(uint32_t*)0x200000002dd4 = 0; *(uint64_t*)0x200000002dd8 = 3; *(uint64_t*)0x200000002de0 = 2; *(uint32_t*)0x200000002de8 = 7; *(uint32_t*)0x200000002dec = 0x615d; memcpy((void*)0x200000002df0, "]F,[@%(", 7); *(uint64_t*)0x200000002df8 = 3; *(uint64_t*)0x200000002e00 = 4; *(uint32_t*)0x200000002e08 = 2; *(uint32_t*)0x200000002e0c = 5; memcpy((void*)0x200000002e10, "#*", 2); *(uint64_t*)0x200000002e18 = 6; *(uint64_t*)0x200000002e20 = 0xc; *(uint32_t*)0x200000002e28 = 1; *(uint32_t*)0x200000002e2c = 0x200; memset((void*)0x200000002e30, 33, 1); *(uint64_t*)0x200000002e38 = 2; *(uint64_t*)0x200000002e40 = 1; *(uint32_t*)0x200000002e48 = 3; *(uint32_t*)0x200000002e4c = 0xffff; memcpy((void*)0x200000002e50, "%[*", 3); *(uint64_t*)0x200000002e58 = 2; *(uint64_t*)0x200000002e60 = 1; *(uint32_t*)0x200000002e68 = 6; *(uint32_t*)0x200000002e6c = 0x10001; memset((void*)0x200000002e70, 187, 6); *(uint64_t*)0x200000002e78 = 2; *(uint64_t*)0x200000002e80 = 9; *(uint32_t*)0x200000002e88 = 3; *(uint32_t*)0x200000002e8c = 3; memcpy((void*)0x200000002e90, "\\$&", 3); *(uint64_t*)0x200000005be8 = 0x200000004380; *(uint32_t*)0x200000004380 = 0x280; *(uint32_t*)0x200000004384 = 0; *(uint64_t*)0x200000004388 = 7; *(uint64_t*)0x200000004390 = 1; *(uint64_t*)0x200000004398 = 2; *(uint64_t*)0x2000000043a0 = 0x9b; *(uint64_t*)0x2000000043a8 = 0xa; *(uint32_t*)0x2000000043b0 = 0x40; *(uint32_t*)0x2000000043b4 = 0x2b; *(uint64_t*)0x2000000043b8 = 1; *(uint64_t*)0x2000000043c0 = 0; *(uint64_t*)0x2000000043c8 = 0xf5; *(uint64_t*)0x2000000043d0 = 7; *(uint64_t*)0x2000000043d8 = 8; *(uint64_t*)0x2000000043e0 = 7; *(uint32_t*)0x2000000043e8 = 5; *(uint32_t*)0x2000000043ec = 9; *(uint32_t*)0x2000000043f0 = 0x1b; *(uint32_t*)0x2000000043f4 = 0xa000; *(uint32_t*)0x2000000043f8 = 4; *(uint32_t*)0x2000000043fc = r[10]; *(uint32_t*)0x200000004400 = r[12]; *(uint32_t*)0x200000004404 = 4; *(uint32_t*)0x200000004408 = 0x10000; *(uint32_t*)0x20000000440c = 0; *(uint64_t*)0x200000004410 = 4; *(uint64_t*)0x200000004418 = 6; *(uint32_t*)0x200000004420 = 0; *(uint32_t*)0x200000004424 = 0x7f; *(uint64_t*)0x200000004428 = 1; *(uint64_t*)0x200000004430 = 0; *(uint64_t*)0x200000004438 = 9; *(uint64_t*)0x200000004440 = 4; *(uint32_t*)0x200000004448 = 9; *(uint32_t*)0x20000000444c = 0x101; *(uint64_t*)0x200000004450 = 0; *(uint64_t*)0x200000004458 = 0x80; *(uint64_t*)0x200000004460 = 0x80000001; *(uint64_t*)0x200000004468 = 8; *(uint64_t*)0x200000004470 = 0x7fffffffffffffff; *(uint64_t*)0x200000004478 = 0xc14; *(uint32_t*)0x200000004480 = 7; *(uint32_t*)0x200000004484 = 2; *(uint32_t*)0x200000004488 = 5; *(uint32_t*)0x20000000448c = 0x1000; *(uint32_t*)0x200000004490 = 7; *(uint32_t*)0x200000004494 = r[13]; *(uint32_t*)0x200000004498 = r[16]; *(uint32_t*)0x20000000449c = 7; *(uint32_t*)0x2000000044a0 = 3; *(uint32_t*)0x2000000044a4 = 0; *(uint64_t*)0x2000000044a8 = 1; *(uint64_t*)0x2000000044b0 = 0x8000000000000000; *(uint32_t*)0x2000000044b8 = 0; *(uint32_t*)0x2000000044bc = 9; *(uint64_t*)0x2000000044c0 = 3; *(uint64_t*)0x2000000044c8 = 1; *(uint64_t*)0x2000000044d0 = 7; *(uint64_t*)0x2000000044d8 = 3; *(uint32_t*)0x2000000044e0 = 0x10000; *(uint32_t*)0x2000000044e4 = 0xfff; *(uint64_t*)0x2000000044e8 = 6; *(uint64_t*)0x2000000044f0 = 3; *(uint64_t*)0x2000000044f8 = 4; *(uint64_t*)0x200000004500 = 0xffffffff; *(uint64_t*)0x200000004508 = 5; *(uint64_t*)0x200000004510 = 1; *(uint32_t*)0x200000004518 = 0xcf; *(uint32_t*)0x20000000451c = 5; *(uint32_t*)0x200000004520 = 2; *(uint32_t*)0x200000004524 = 0x3000; *(uint32_t*)0x200000004528 = 0xf; *(uint32_t*)0x20000000452c = r[17]; *(uint32_t*)0x200000004530 = r[18]; *(uint32_t*)0x200000004534 = 0xdda; *(uint32_t*)0x200000004538 = 0x800; *(uint32_t*)0x20000000453c = 0; *(uint64_t*)0x200000004540 = 0; *(uint64_t*)0x200000004548 = 0x480; *(uint32_t*)0x200000004550 = 1; *(uint32_t*)0x200000004554 = 7; memset((void*)0x200000004558, 39, 1); *(uint64_t*)0x200000004560 = 3; *(uint64_t*)0x200000004568 = 0; *(uint64_t*)0x200000004570 = 6; *(uint64_t*)0x200000004578 = 6; *(uint32_t*)0x200000004580 = 0xae90; *(uint32_t*)0x200000004584 = 0x7fff; *(uint64_t*)0x200000004588 = 5; *(uint64_t*)0x200000004590 = 2; *(uint64_t*)0x200000004598 = 0xffff; *(uint64_t*)0x2000000045a0 = 0xb6; *(uint64_t*)0x2000000045a8 = 9; *(uint64_t*)0x2000000045b0 = 8; *(uint32_t*)0x2000000045b8 = 0x200; *(uint32_t*)0x2000000045bc = 3; *(uint32_t*)0x2000000045c0 = 6; *(uint32_t*)0x2000000045c4 = 0x6000; *(uint32_t*)0x2000000045c8 = 0xfffffff7; *(uint32_t*)0x2000000045cc = r[19]; *(uint32_t*)0x2000000045d0 = r[20]; *(uint32_t*)0x2000000045d4 = 4; *(uint32_t*)0x2000000045d8 = 6; *(uint32_t*)0x2000000045dc = 0; *(uint64_t*)0x2000000045e0 = 0; *(uint64_t*)0x2000000045e8 = 3; *(uint32_t*)0x2000000045f0 = 6; *(uint32_t*)0x2000000045f4 = 0xfffffffd; memcpy((void*)0x2000000045f8, "wlan0\000", 6); *(uint64_t*)0x200000005bf0 = 0x200000004740; *(uint32_t*)0x200000004740 = 0xa0; *(uint32_t*)0x200000004744 = 0xfffffffe; *(uint64_t*)0x200000004748 = 0x7fff; *(uint64_t*)0x200000004750 = 1; *(uint64_t*)0x200000004758 = 2; *(uint64_t*)0x200000004760 = 8; *(uint64_t*)0x200000004768 = 0x8001; *(uint32_t*)0x200000004770 = 0x9000; *(uint32_t*)0x200000004774 = 0; *(uint64_t*)0x200000004778 = 3; *(uint64_t*)0x200000004780 = 4; *(uint64_t*)0x200000004788 = 0x4283; *(uint64_t*)0x200000004790 = 6; *(uint64_t*)0x200000004798 = 7; *(uint64_t*)0x2000000047a0 = 1; *(uint32_t*)0x2000000047a8 = 4; *(uint32_t*)0x2000000047ac = 0x8000; *(uint32_t*)0x2000000047b0 = 0x7f; *(uint32_t*)0x2000000047b4 = 0x2000; *(uint32_t*)0x2000000047b8 = 0xa; *(uint32_t*)0x2000000047bc = r[22]; *(uint32_t*)0x2000000047c0 = r[24]; *(uint32_t*)0x2000000047c4 = 2; *(uint32_t*)0x2000000047c8 = 9; *(uint32_t*)0x2000000047cc = 0; *(uint64_t*)0x2000000047d0 = 0; *(uint32_t*)0x2000000047d8 = 0; *(uint32_t*)0x2000000047dc = 0; *(uint64_t*)0x200000005bf8 = 0x200000004800; *(uint32_t*)0x200000004800 = 0x20; *(uint32_t*)0x200000004804 = 0; *(uint64_t*)0x200000004808 = 0xa; *(uint32_t*)0x200000004810 = 8; *(uint32_t*)0x200000004814 = 0; *(uint32_t*)0x200000004818 = 0; *(uint32_t*)0x20000000481c = 0; *(uint64_t*)0x200000005c00 = 0x200000005a40; *(uint32_t*)0x200000005a40 = 0x130; *(uint32_t*)0x200000005a44 = 0; *(uint64_t*)0x200000005a48 = 0x800; *(uint64_t*)0x200000005a50 = 0x10000000; *(uint32_t*)0x200000005a58 = 9; *(uint32_t*)0x200000005a5c = 0; memset((void*)0x200000005a60, 0, 16); *(uint32_t*)0x200000005a70 = 4; *(uint32_t*)0x200000005a74 = 0xfffffff9; *(uint64_t*)0x200000005a78 = 8; *(uint32_t*)0x200000005a80 = 0xd; *(uint32_t*)0x200000005a84 = r[25]; *(uint32_t*)0x200000005a88 = r[27]; *(uint16_t*)0x200000005a8c = 0x4000; memset((void*)0x200000005a8e, 0, 2); *(uint64_t*)0x200000005a90 = 0xe; *(uint64_t*)0x200000005a98 = 1; *(uint64_t*)0x200000005aa0 = 9; *(uint64_t*)0x200000005aa8 = 4; *(uint64_t*)0x200000005ab0 = 0x75; *(uint32_t*)0x200000005ab8 = 0x10; *(uint32_t*)0x200000005abc = 0; *(uint64_t*)0x200000005ac0 = 0; *(uint32_t*)0x200000005ac8 = 0x2a; *(uint32_t*)0x200000005acc = 0; *(uint64_t*)0x200000005ad0 = 4; *(uint32_t*)0x200000005ad8 = 0x647; *(uint32_t*)0x200000005adc = 0; *(uint64_t*)0x200000005ae0 = 8; *(uint32_t*)0x200000005ae8 = 0xfffffffa; *(uint32_t*)0x200000005aec = 0; *(uint32_t*)0x200000005af0 = 4; *(uint32_t*)0x200000005af4 = 9; *(uint32_t*)0x200000005af8 = 0xf1; *(uint32_t*)0x200000005afc = 7; memset((void*)0x200000005b00, 0, 112); syz_fuse_handle_req(/*fd=*/r[6], /*buf=*/0x200000000780, /*len=*/0x2000, /*res=*/0x200000005b80); break; case 33: res = syscall(__NR_socket, /*domain=*/0x10ul, /*type=*/3ul, /*proto=*/0x10); if (res != -1) r[28] = res; break; case 34: memcpy((void*)0x200000005c40, "SEG6\000", 5); syz_genetlink_get_family_id(/*name=*/0x200000005c40, /*fd=*/r[28]); break; case 35: syz_init_net_socket(/*domain=*/0x24, /*type=*/2, /*proto=*/0); break; case 36: res = -1; res = syz_io_uring_complete(/*ring_ptr=*/0); if (res != -1) r[29] = res; break; case 37: *(uint32_t*)0x200000005c84 = 0x9c5d; *(uint32_t*)0x200000005c88 = 2; *(uint32_t*)0x200000005c8c = 1; *(uint32_t*)0x200000005c90 = 0x253; *(uint32_t*)0x200000005c98 = r[15]; memset((void*)0x200000005c9c, 0, 12); res = -1; res = syz_io_uring_setup(/*entries=*/0x19f7, /*params=*/0x200000005c80, /*ring_ptr=*/0x200000005d00, /*sqes_ptr=*/0x200000005d40); if (res != -1) { r[30] = *(uint64_t*)0x200000005d00; r[31] = *(uint64_t*)0x200000005d40; } break; case 38: *(uint8_t*)0x200000005dc0 = 0xb; *(uint8_t*)0x200000005dc1 = 0x28; *(uint16_t*)0x200000005dc2 = 0; *(uint32_t*)0x200000005dc4 = 0; *(uint64_t*)0x200000005dc8 = 3; *(uint64_t*)0x200000005dd0 = 0x200000005d80; *(uint64_t*)0x200000005d80 = 0; *(uint64_t*)0x200000005d88 = 0; *(uint32_t*)0x200000005dd8 = 1; *(uint32_t*)0x200000005ddc = 0x10; *(uint64_t*)0x200000005de0 = 1; *(uint16_t*)0x200000005de8 = 0; *(uint16_t*)0x200000005dea = 0; memset((void*)0x200000005dec, 0, 20); syz_io_uring_submit(/*ring_ptr=*/r[30], /*sqes_ptr=*/r[31], /*sqe=*/0x200000005dc0); break; case 39: res = -1; res = syz_kvm_setup_syzos_vm(/*fd=*/r[15], /*usermem=*/0x200000bff000); if (res != -1) r[32] = res; break; case 40: *(uint64_t*)0x200000005e80 = 0; *(uint64_t*)0x200000005e88 = 0x200000005e00; *(uint64_t*)0x200000005e00 = 0x12c; *(uint64_t*)0x200000005e08 = 0x18; *(uint64_t*)0x200000005e10 = 0; *(uint64_t*)0x200000005e18 = 0; *(uint64_t*)0x200000005e20 = 0x18; *(uint64_t*)0x200000005e28 = 4; *(uint64_t*)0x200000005e30 = 0x12d; *(uint64_t*)0x200000005e38 = 0x18; *(uint64_t*)0x200000005e40 = 2; *(uint64_t*)0x200000005e90 = 0x48; syz_kvm_add_vcpu(/*vm=*/r[32], /*text=*/0x200000005e80); break; case 41: *(uint64_t*)0x200000006100 = 0; *(uint64_t*)0x200000006108 = 0x200000005ec0; memcpy((void*)0x200000005ec0, 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560); *(uint64_t*)0x200000006110 = 0x230; *(uint64_t*)0x200000006140 = 1; *(uint64_t*)0x200000006148 = 7; syz_kvm_setup_cpu(/*fd=*/r[14], /*cpufd=*/r[29], /*usermem=*/0x200000c37000, /*text=*/0x200000006100, /*ntext=*/1, /*flags=KVM_SETUP_PPC64_LE*/1, /*opts=*/0x200000006140, /*nopt=*/1); break; case 42: syz_kvm_setup_syzos_vm(/*fd=*/r[29], /*usermem=*/0x200000c00000); break; case 43: *(uint32_t*)0x200000006180 = 0; syz_memcpy_off(/*ring_ptr=*/r[30], /*flag_off=SQ_FLAGS_OFFSET*/0x114, /*src=*/0x200000006180, /*src_off=*/0, /*nbytes=*/4); break; case 44: *(uint64_t*)0x200000006240 = 5; res = syscall(__NR_socketcall, /*call=*/1ul, /*args=*/0x200000006240ul); if (res != -1) r[33] = res; break; case 45: *(uint32_t*)0x200000006340 = 0xfffffffa; *(uint32_t*)0x200000006344 = r[11]; *(uint32_t*)0x200000006348 = r[27]; *(uint32_t*)0x20000000634c = 3; *(uint32_t*)0x200000006350 = 0xffff; *(uint32_t*)0x200000006354 = 0xe6b; *(uint16_t*)0x200000006358 = 7; *(uint32_t*)0x20000000635c = 0; *(uint64_t*)0x200000006360 = 0x357b; *(uint64_t*)0x200000006368 = 3; *(uint64_t*)0x200000006370 = 0x8000000000000000; *(uint32_t*)0x200000006378 = 0x74; *(uint32_t*)0x20000000637c = r[21]; *(uint16_t*)0x200000006380 = 0xc0b; *(uint16_t*)0x200000006382 = 0; *(uint64_t*)0x200000006388 = 0x200000006280; memcpy((void*)0x200000006280, "\x70\x10\x15\x9f\x68\xd5\xae\x90\x71\x37\xfa\x70\xd2\x86\xa1\x8b\xa4\x83\x48\xf8\x8d\x1f\xa0\x97\xcf\xe8\x2b\xb9\x55\x9e\x66\xc9\x7b\x4c\xcf\x3a\xcd\x9c\xe2\x40\x54\x49\x07\xf4\x53\x81\x70\xe4\x5e\x0c\x6d\xe8\xad\xfb\x6a\xe9\x4e\xd4\x4b\x61\x6a\x63\x73\x78\x14\xf1\x89\x44\x73\xd9\x51\x9f\x21\x30\xe8\xa0\xe0\x61\xc9\x6e\x46\xa9\x9a\x53\x16\xe4\x6b\x6b\x46\x13\x48\xbb\x03\xdd\xda\xd7\x06\x75\xbc\xda\x59\x21\xbd\xb5\x03\x8c\xc7\xdc\xad\xe7\xba\x3e\x10\x6c\xf3\x15\xe2\xad\x48\x81\x8a\x62\xc7", 123); *(uint64_t*)0x200000006390 = 0x200000006300; memcpy((void*)0x200000006300, "\x13\x68\x24\x8a\xd9\x08\xeb\x42\x50\x81\x23\x9c\x0a\x10\xa5\x14\xef\x06\xf1\x6f\xa3\x8b\xc5\x2b\x0f\x03\xb0\x4d\x36\xf5\x44\x26\x3c\xb4\xa0\xa3\xff\xbb\xaf\xa8\x00\x89\xcf\x8b\x02\x84\x1d\xf4\x33\xc6\xb9\x7d\xa8\xfb\xfe\x28\x5f\xcc\xd0\x5a\xd4", 61); res = syscall(__NR_shmctl, /*shmid=*/0x80000000, /*cmd=*/0xeul, /*buf=*/0x200000006340ul); if (res != -1) { r[34] = *(uint32_t*)0x200000006348; r[35] = *(uint32_t*)0x20000000637c; } break; case 46: memcpy((void*)0x2000000061c0, "fuse\000", 5); memcpy((void*)0x200000006200, "./file0\000", 8); memcpy((void*)0x2000000063c0, "fd", 2); *(uint8_t*)0x2000000063c2 = 0x3d; sprintf((char*)0x2000000063c3, "0x%016llx", (long long)r[33]); *(uint8_t*)0x2000000063d5 = 0x2c; memcpy((void*)0x2000000063d6, "rootmode", 8); *(uint8_t*)0x2000000063de = 0x3d; sprintf((char*)0x2000000063df, "%023llo", (long long)0x1000); *(uint8_t*)0x2000000063f6 = 0x2c; memcpy((void*)0x2000000063f7, "user_id", 7); *(uint8_t*)0x2000000063fe = 0x3d; sprintf((char*)0x2000000063ff, "%020llu", (long long)r[23]); *(uint8_t*)0x200000006413 = 0x2c; memcpy((void*)0x200000006414, "group_id", 8); *(uint8_t*)0x20000000641c = 0x3d; sprintf((char*)0x20000000641d, "%020llu", (long long)r[34]); *(uint8_t*)0x200000006431 = 0x2c; memcpy((void*)0x200000006432, "blksize", 7); *(uint8_t*)0x200000006439 = 0x3d; sprintf((char*)0x20000000643a, "0x%016llx", (long long)0x600); *(uint8_t*)0x20000000644c = 0x2c; memcpy((void*)0x20000000644d, "max_read", 8); *(uint8_t*)0x200000006455 = 0x3d; sprintf((char*)0x200000006456, "0x%016llx", (long long)0); *(uint8_t*)0x200000006468 = 0x2c; memcpy((void*)0x200000006469, "blksize", 7); *(uint8_t*)0x200000006470 = 0x3d; sprintf((char*)0x200000006471, "0x%016llx", (long long)0x1e00); *(uint8_t*)0x200000006483 = 0x2c; memcpy((void*)0x200000006484, "max_read", 8); *(uint8_t*)0x20000000648c = 0x3d; sprintf((char*)0x20000000648d, "0x%016llx", (long long)0x100000001); *(uint8_t*)0x20000000649f = 0x2c; memcpy((void*)0x2000000064a0, "default_permissions", 19); *(uint8_t*)0x2000000064b3 = 0x2c; memcpy((void*)0x2000000064b4, "default_permissions", 19); *(uint8_t*)0x2000000064c7 = 0x2c; memcpy((void*)0x2000000064c8, "euid<", 5); sprintf((char*)0x2000000064cd, "%020llu", (long long)r[13]); *(uint8_t*)0x2000000064e1 = 0x2c; memcpy((void*)0x2000000064e2, "subj_user", 9); *(uint8_t*)0x2000000064eb = 0x3d; memset((void*)0x2000000064ec, 44, 1); *(uint8_t*)0x2000000064ed = 0x2c; memcpy((void*)0x2000000064ee, "uid<", 4); sprintf((char*)0x2000000064f2, "%020llu", (long long)r[26]); *(uint8_t*)0x200000006506 = 0x2c; memcpy((void*)0x200000006507, "audit", 5); *(uint8_t*)0x20000000650c = 0x2c; memcpy((void*)0x20000000650d, "dont_measure", 12); *(uint8_t*)0x200000006519 = 0x2c; *(uint8_t*)0x20000000651a = 0; memcpy((void*)0x200000006540, "\xd3\xaa\x92", 3); syz_mount_image(/*fs=*/0x2000000061c0, /*dir=*/0x200000006200, /*flags=MS_NOATIME*/0x400, /*opts=*/0x2000000063c0, /*chdir=*/0, /*size=*/0, /*img=*/0x200000006540); break; case 47: memcpy((void*)0x200000006580, "/dev/i2c-#\000", 11); syz_open_dev(/*dev=*/0x200000006580, /*id=*/0x800, /*flags=O_NOATIME*/0x40000); break; case 48: memcpy((void*)0x2000000065c0, "cgroup\000", 7); syz_open_procfs(/*pid=*/r[5], /*file=*/0x2000000065c0); break; case 49: syz_open_pts(/*fd=*/r[14], /*flags=O_TRUNC|O_WRONLY*/0x201); break; case 50: syz_pidfd_open(/*pid=*/r[35], /*flags=*/0); break; case 51: res = syscall(__NR_pkey_alloc, /*flags=*/0ul, /*val=PKEY_DISABLE_WRITE*/2ul); if (res != -1) r[36] = res; break; case 52: syz_pkey_set(/*key=*/r[36], /*val=*/0); break; case 53: syz_socket_connect_nvme_tcp(); break; case 54: *(uint8_t*)0x200000006600 = 0x12; *(uint8_t*)0x200000006601 = 1; *(uint16_t*)0x200000006602 = 0x310; *(uint8_t*)0x200000006604 = 0xf; *(uint8_t*)0x200000006605 = 0x36; *(uint8_t*)0x200000006606 = 0x49; *(uint8_t*)0x200000006607 = 8; *(uint16_t*)0x200000006608 = 0x7d0; *(uint16_t*)0x20000000660a = 0x4101; *(uint16_t*)0x20000000660c = 0x4624; *(uint8_t*)0x20000000660e = 1; *(uint8_t*)0x20000000660f = 2; *(uint8_t*)0x200000006610 = 3; *(uint8_t*)0x200000006611 = 1; *(uint8_t*)0x200000006612 = 9; *(uint8_t*)0x200000006613 = 2; *(uint16_t*)0x200000006614 = 0x4f2; *(uint8_t*)0x200000006616 = 3; *(uint8_t*)0x200000006617 = 1; *(uint8_t*)0x200000006618 = 0xa2; *(uint8_t*)0x200000006619 = 0x40; *(uint8_t*)0x20000000661a = 0x64; *(uint8_t*)0x20000000661b = 9; *(uint8_t*)0x20000000661c = 4; *(uint8_t*)0x20000000661d = 0xc2; *(uint8_t*)0x20000000661e = 7; *(uint8_t*)0x20000000661f = 0xa; *(uint8_t*)0x200000006620 = 0x50; *(uint8_t*)0x200000006621 = 0xb3; *(uint8_t*)0x200000006622 = 0x17; *(uint8_t*)0x200000006623 = 7; *(uint8_t*)0x200000006624 = 9; *(uint8_t*)0x200000006625 = 0x21; *(uint16_t*)0x200000006626 = 3; *(uint8_t*)0x200000006628 = 0xdf; *(uint8_t*)0x200000006629 = 1; *(uint8_t*)0x20000000662a = 0x22; *(uint16_t*)0x20000000662b = 0x238; *(uint8_t*)0x20000000662d = 7; *(uint8_t*)0x20000000662e = 0x24; *(uint8_t*)0x20000000662f = 1; *(uint8_t*)0x200000006630 = 2; *(uint8_t*)0x200000006631 = 2; *(uint16_t*)0x200000006632 = 2; *(uint8_t*)0x200000006634 = 0xb; *(uint8_t*)0x200000006635 = 0x24; *(uint8_t*)0x200000006636 = 2; *(uint8_t*)0x200000006637 = 1; *(uint8_t*)0x200000006638 = 0xde; *(uint8_t*)0x200000006639 = 2; *(uint8_t*)0x20000000663a = 0; *(uint8_t*)0x20000000663b = 5; memcpy((void*)0x20000000663c, "\x11\x6d\xf7", 3); *(uint8_t*)0x20000000663f = 0xa; *(uint8_t*)0x200000006640 = 0x24; *(uint8_t*)0x200000006641 = 2; *(uint8_t*)0x200000006642 = 2; *(uint16_t*)0x200000006643 = 8; *(uint16_t*)0x200000006645 = 3; *(uint8_t*)0x200000006647 = 7; memset((void*)0x200000006648, 59, 1); *(uint8_t*)0x200000006649 = 0xa; *(uint8_t*)0x20000000664a = 0x24; *(uint8_t*)0x20000000664b = 2; *(uint8_t*)0x20000000664c = 1; *(uint8_t*)0x20000000664d = 4; *(uint8_t*)0x20000000664e = 3; *(uint8_t*)0x20000000664f = 0x1a; *(uint8_t*)0x200000006650 = 9; memcpy((void*)0x200000006651, "\x0f\x58", 2); *(uint8_t*)0x200000006653 = 0xc; *(uint8_t*)0x200000006654 = 0x24; *(uint8_t*)0x200000006655 = 2; *(uint8_t*)0x200000006656 = 2; *(uint16_t*)0x200000006657 = 0xf270; *(uint16_t*)0x200000006659 = 0x100; *(uint8_t*)0x20000000665b = 7; memcpy((void*)0x20000000665c, "\x31\x29\xf9", 3); *(uint8_t*)0x20000000665f = 0xb; *(uint8_t*)0x200000006660 = 0x24; *(uint8_t*)0x200000006661 = 2; *(uint8_t*)0x200000006662 = 1; *(uint8_t*)0x200000006663 = 1; *(uint8_t*)0x200000006664 = 3; *(uint8_t*)0x200000006665 = 0xf9; *(uint8_t*)0x200000006666 = 0xa3; memcpy((void*)0x200000006667, "\x54\x06\x13", 3); *(uint8_t*)0x20000000666a = 9; *(uint8_t*)0x20000000666b = 5; *(uint8_t*)0x20000000666c = 3; *(uint8_t*)0x20000000666d = 0x38; *(uint16_t*)0x20000000666e = 8; *(uint8_t*)0x200000006670 = 1; *(uint8_t*)0x200000006671 = 0xf9; *(uint8_t*)0x200000006672 = 0; *(uint8_t*)0x200000006673 = 7; *(uint8_t*)0x200000006674 = 0x25; *(uint8_t*)0x200000006675 = 1; *(uint8_t*)0x200000006676 = 1; *(uint8_t*)0x200000006677 = 0x80; *(uint16_t*)0x200000006678 = 0xffb0; *(uint8_t*)0x20000000667a = 0x62; *(uint8_t*)0x20000000667b = 0xe; memcpy((void*)0x20000000667c, "\x0b\xef\x67\x9d\x63\x59\xd7\x1a\x14\x4a\x38\xa2\x28\x34\xd1\x2b\xd1\x9c\x60\xb6\x58\x29\xf4\x4e\xbe\x6b\x12\x58\xa3\xa7\xa0\xcc\x60\xf3\x00\x07\xc2\xc4\xd2\xa3\xcb\x88\xfb\x6b\xeb\x58\x0e\x62\x81\x47\x11\x4f\xfc\x6a\x4e\x39\xb1\x9e\x71\x8f\xc2\xcd\x0f\xa5\xaf\x68\x86\x49\xab\xe3\xdb\x58\xd0\x70\x72\x03\x28\x3b\x6b\xdc\xa0\x5f\x49\xfb\x16\xb3\x61\x8f\xcf\x4d\xd0\x1c\xb2\xef\x35\x09", 96); *(uint8_t*)0x2000000066dc = 9; *(uint8_t*)0x2000000066dd = 5; *(uint8_t*)0x2000000066de = 4; *(uint8_t*)0x2000000066df = 0; *(uint16_t*)0x2000000066e0 = 0x20; *(uint8_t*)0x2000000066e2 = 1; *(uint8_t*)0x2000000066e3 = 2; *(uint8_t*)0x2000000066e4 = 5; *(uint8_t*)0x2000000066e5 = 0x4e; *(uint8_t*)0x2000000066e6 = 0xa; memcpy((void*)0x2000000066e7, "\xaa\xde\x99\xcc\xf3\x48\x06\x1a\xd9\x22\x25\xe0\x5a\x39\x6a\x2e\xbe\x89\x2c\xa6\x5d\xe9\xef\xa6\x65\x82\x1e\x34\x20\x0c\x5c\xaa\x94\x3c\x9b\x1a\x3e\xb1\x08\x28\xe1\x38\x15\xe6\x12\x0c\x47\x87\xa4\xd3\x95\xb1\xe3\x2a\x8b\xa1\xff\xb9\x91\x37\x58\x79\xd5\x17\x86\x2d\xe6\xe9\xcb\x6f\x72\x33\x35\xdd\x15\x6a", 76); *(uint8_t*)0x200000006733 = 9; *(uint8_t*)0x200000006734 = 5; *(uint8_t*)0x200000006735 = 3; *(uint8_t*)0x200000006736 = 0xc; *(uint16_t*)0x200000006737 = 0x3ff; *(uint8_t*)0x200000006739 = 7; *(uint8_t*)0x20000000673a = 0; *(uint8_t*)0x20000000673b = 0x7f; *(uint8_t*)0x20000000673c = 0x33; *(uint8_t*)0x20000000673d = 0xe; memcpy((void*)0x20000000673e, "\x08\xb9\x28\xc5\x63\xb3\xfb\xc1\x36\xbe\xaf\x22\xbf\x46\xe0\xcf\x55\xe3\xf2\x62\x48\x5f\x30\xb2\x8a\x3f\x9a\x3e\xc9\x01\xce\x80\x66\xc6\x78\x8d\x46\x95\x26\xc5\x5b\xf0\xc2\xb3\xca\x50\x05\x53\x9a", 49); *(uint8_t*)0x20000000676f = 9; *(uint8_t*)0x200000006770 = 5; *(uint8_t*)0x200000006771 = 0xb; *(uint8_t*)0x200000006772 = 4; *(uint16_t*)0x200000006773 = 0x3ff; *(uint8_t*)0x200000006775 = 3; *(uint8_t*)0x200000006776 = 0x40; *(uint8_t*)0x200000006777 = 0x7f; *(uint8_t*)0x200000006778 = 7; *(uint8_t*)0x200000006779 = 0x25; *(uint8_t*)0x20000000677a = 1; *(uint8_t*)0x20000000677b = 0x87; *(uint8_t*)0x20000000677c = 9; *(uint16_t*)0x20000000677d = 0x4e; *(uint8_t*)0x20000000677f = 0xcb; *(uint8_t*)0x200000006780 = 0x11; memcpy((void*)0x200000006781, "\x3b\x9d\xca\xcc\x67\x90\x86\xd7\x8f\x92\x7a\xb6\x34\x93\x5a\x18\x81\x3b\x23\xcc\xef\xfe\xa6\x9b\x63\x0a\xa9\x7c\xc4\x69\x90\x7a\xfa\xc2\xa3\x03\x27\xad\xeb\x90\x1d\x9f\xb9\x00\xad\x82\x13\x80\x98\xcb\xff\x5f\xed\x7f\xee\x2c\x7d\x70\x12\x90\xce\x4a\xd0\x20\xa9\xda\x29\x67\x5f\x8f\x05\x13\x99\x87\x9d\xb5\x70\x22\xb8\x9c\x99\x01\x20\x51\x3a\xaa\x70\xc5\x18\x47\xb1\x28\xdd\x73\xbd\xea\x25\xcb\xb5\x45\xc1\xae\x83\x52\x02\x4c\xa9\x3c\xd7\xea\x88\x1c\xbb\x09\x20\xee\xde\xf0\x72\xef\xe9\xda\x61\xb7\xbd\x77\xa3\xc0\x85\xd7\x12\xc1\x42\xca\x88\xc3\x9f\x8e\xdd\x17\xd6\xfb\x9a\x7e\xf8\xd0\xfa\xd5\xa1\x5a\x33\x3e\x7e\xd0\x5e\x7e\x9a\xe6\xe2\xa4\x64\xc3\x15\x9a\xb1\xa6\x0e\x33\xaf\xbf\x29\xa2\xf6\x78\xc8\xc9\xe2\xf8\xf7\xa8\xd0\x3d\x55\x82\x52\x9b\x27\x7b\x4b\xe8\x55\x83\xe5\xd8\x1b\xc9\x57\x49\x77\x30\x42", 201); *(uint8_t*)0x20000000684a = 9; *(uint8_t*)0x20000000684b = 5; *(uint8_t*)0x20000000684c = 1; *(uint8_t*)0x20000000684d = 3; *(uint16_t*)0x20000000684e = 8; *(uint8_t*)0x200000006850 = 0xe; *(uint8_t*)0x200000006851 = 8; *(uint8_t*)0x200000006852 = 0x7f; *(uint8_t*)0x200000006853 = 0x72; *(uint8_t*)0x200000006854 = 6; memcpy((void*)0x200000006855, "\x6e\xe2\x41\x04\x69\xb7\xa8\xb2\x3e\x32\x55\xa5\x54\xb6\x3d\x5b\xeb\x1b\x34\xb4\x87\x18\x94\xe3\xdf\x69\xe7\x55\x8c\xe5\x6c\xc8\x3b\x83\xae\x1a\xc9\xd1\xde\xc0\x88\x2d\x04\x0a\x78\x01\xa3\x00\xc7\xea\xc2\x6d\x78\xd2\xda\xff\x6b\xd4\x7c\xac\xa5\x00\xd4\x6c\x1b\x5a\x0b\x9e\x1a\xda\x0e\x7b\x60\x6b\x6f\xd6\xb3\x9d\xb8\x1c\x7c\x95\x4c\x04\xd4\xed\xe9\x80\xea\x2c\xa8\x0b\x11\x3b\xdb\x4b\xe7\x47\xe1\xb6\xdc\x92\x81\xd7\x7e\x85\x68\x3a\xaa\xc6\x53\x4c", 112); *(uint8_t*)0x2000000068c5 = 9; *(uint8_t*)0x2000000068c6 = 5; *(uint8_t*)0x2000000068c7 = 0xb; *(uint8_t*)0x2000000068c8 = 0xc; *(uint16_t*)0x2000000068c9 = 0x60e1; *(uint8_t*)0x2000000068cb = 0; *(uint8_t*)0x2000000068cc = 1; *(uint8_t*)0x2000000068cd = 7; *(uint8_t*)0x2000000068ce = 9; *(uint8_t*)0x2000000068cf = 5; *(uint8_t*)0x2000000068d0 = 0; *(uint8_t*)0x2000000068d1 = 0; *(uint16_t*)0x2000000068d2 = 0x10; *(uint8_t*)0x2000000068d4 = 5; *(uint8_t*)0x2000000068d5 = 1; *(uint8_t*)0x2000000068d6 = 0x77; *(uint8_t*)0x2000000068d7 = 9; *(uint8_t*)0x2000000068d8 = 5; *(uint8_t*)0x2000000068d9 = 5; *(uint8_t*)0x2000000068da = 0; *(uint16_t*)0x2000000068db = 0x208; *(uint8_t*)0x2000000068dd = 0x1b; *(uint8_t*)0x2000000068de = 9; *(uint8_t*)0x2000000068df = 7; *(uint8_t*)0x2000000068e0 = 9; *(uint8_t*)0x2000000068e1 = 5; *(uint8_t*)0x2000000068e2 = 0xf; *(uint8_t*)0x2000000068e3 = 0; *(uint16_t*)0x2000000068e4 = 0x40; *(uint8_t*)0x2000000068e6 = 0x30; *(uint8_t*)0x2000000068e7 = 5; *(uint8_t*)0x2000000068e8 = 7; *(uint8_t*)0x2000000068e9 = 0x50; *(uint8_t*)0x2000000068ea = 6; memcpy((void*)0x2000000068eb, "\x01\x1d\xaf\x9a\xd3\xae\xa9\x56\xd0\x18\x4e\x89\x07\xd7\xb0\xb0\xa6\xaa\x9e\x92\x1a\xc6\x4d\x7a\x9e\x5a\x0c\xe5\xb5\xe0\xaf\xb4\x78\x68\xc9\xc4\xa7\x6b\x65\x09\x83\x5b\xf9\xee\x45\xa7\x89\x1e\xaa\xd1\x72\xa8\x75\x63\x4f\x7f\x36\x26\x01\x24\x66\x9b\x2d\x1b\x04\xc2\xfd\xa3\x8c\xc9\x36\x92\x1c\xb5\x61\x24\x5e\xfa", 78); *(uint8_t*)0x200000006939 = 0xb7; *(uint8_t*)0x20000000693a = 0x21; memcpy((void*)0x20000000693b, "\x53\x54\x2a\x37\x44\x9c\x9d\x1a\x4e\x69\x6a\x99\x52\x7d\x5a\xd5\xbd\xad\x1c\x7e\x72\x41\x28\xdf\x50\x29\x5a\xa0\xc6\x14\x01\xca\x6c\xd5\xcd\x35\x69\x77\xf6\x17\xe8\xb1\x14\x48\x46\x62\x69\x11\x6a\xf9\x3b\x9d\xce\x05\xde\xd4\x87\x92\x71\x9f\x65\xbf\xa9\x1d\xa1\x6b\x85\xee\x1d\x62\x36\x08\x4d\x81\x70\xf9\x7c\x0a\x74\xf1\x02\x66\x3c\x64\x5b\x0e\xe1\xb0\xfa\x79\x04\xe6\x46\x43\x8d\x8b\x16\x21\x86\x04\x56\x1c\x1a\xbb\x98\x28\x9e\x3e\xcb\xa8\x8e\x78\xf6\x73\x61\x47\x87\x74\x46\x2a\x4d\x82\x74\x96\x46\x45\x20\x04\xb2\x48\x20\x82\xe9\xc1\xb2\xf2\x97\x24\x19\xf6\xf7\x52\xe1\xbe\xc5\xe1\x92\x5f\xce\x21\x5e\xdb\x82\x65\x34\x4d\xa8\x5b\x85\x16\x4d\xb3\xc6\x33\xe4\xe4\x31\xfe\xc4\xc6\x09\x66\x4e\xac\x2b\x6b\x1f\x5f\x7b\xdc\x10", 181); *(uint8_t*)0x2000000069f0 = 9; *(uint8_t*)0x2000000069f1 = 5; *(uint8_t*)0x2000000069f2 = 0xc; *(uint8_t*)0x2000000069f3 = 0x10; *(uint16_t*)0x2000000069f4 = 0x10; *(uint8_t*)0x2000000069f6 = 3; *(uint8_t*)0x2000000069f7 = 0xf9; *(uint8_t*)0x2000000069f8 = -1; *(uint8_t*)0x2000000069f9 = 0xba; *(uint8_t*)0x2000000069fa = 0x23; memcpy((void*)0x2000000069fb, "\x5c\x48\xa5\x1f\x46\xfa\x07\x8d\x84\xce\x43\x4e\x72\x2a\x7f\xa4\xe7\x02\x1a\xe9\xd9\xb7\x66\x77\x36\x6d\xe6\xa1\x0a\xb3\xe9\x4e\x09\x69\xd7\xfc\x2a\x24\x53\x6e\x11\x50\xd9\x46\x72\xc5\x41\x8b\x02\x95\x1d\xef\x7e\x20\xc7\xdf\xe0\xaa\x26\xad\xbf\x0b\xfd\x8f\x6d\xd3\x51\xfa\x30\x99\x07\x13\x53\x71\x34\xaf\x9c\x14\xfa\x84\xde\xe2\xb9\x5a\xf8\xe1\x34\x54\x2b\x5a\x1a\xd5\x40\x32\x9a\x97\xcb\xdd\x1a\x24\x22\xf1\x3e\x6e\x03\xb4\x9f\x71\x05\xa6\xbf\x49\x00\xea\x72\x3f\xbe\x14\xf2\x1d\x18\x2a\xee\xf2\xcf\x51\x62\x59\x1f\x8b\xd3\x8b\x85\xd4\x5d\x72\x3c\xef\x02\x13\x2b\x5e\x45\x46\x7d\xd8\xd4\x30\xc3\x78\xb8\xbf\x2d\x98\x40\x32\x67\x01\x03\x79\xde\x7b\xd0\x4c\x80\x0d\xfd\x5f\xae\x0c\x0d\xda\xc0\xb5\xcf\xfd\xe9\x8c\xa4\x00\xdc\xe3\x0d\xdd", 184); *(uint8_t*)0x200000006ab3 = 9; *(uint8_t*)0x200000006ab4 = 4; *(uint8_t*)0x200000006ab5 = 0xfc; *(uint8_t*)0x200000006ab6 = 4; *(uint8_t*)0x200000006ab7 = 1; *(uint8_t*)0x200000006ab8 = -1; *(uint8_t*)0x200000006ab9 = 6; *(uint8_t*)0x200000006aba = 0x39; *(uint8_t*)0x200000006abb = 0xc; *(uint8_t*)0x200000006abc = 9; *(uint8_t*)0x200000006abd = 5; *(uint8_t*)0x200000006abe = 0; *(uint8_t*)0x200000006abf = 2; *(uint16_t*)0x200000006ac0 = 0x400; *(uint8_t*)0x200000006ac2 = 9; *(uint8_t*)0x200000006ac3 = 0xdf; *(uint8_t*)0x200000006ac4 = 2; *(uint8_t*)0x200000006ac5 = 7; *(uint8_t*)0x200000006ac6 = 0x25; *(uint8_t*)0x200000006ac7 = 1; *(uint8_t*)0x200000006ac8 = 3; *(uint8_t*)0x200000006ac9 = 8; *(uint16_t*)0x200000006aca = 0x8000; *(uint8_t*)0x200000006acc = 9; *(uint8_t*)0x200000006acd = 4; *(uint8_t*)0x200000006ace = 0x9d; *(uint8_t*)0x200000006acf = 1; *(uint8_t*)0x200000006ad0 = 3; *(uint8_t*)0x200000006ad1 = 0x48; *(uint8_t*)0x200000006ad2 = 0x48; *(uint8_t*)0x200000006ad3 = 0x40; *(uint8_t*)0x200000006ad4 = 0xa; *(uint8_t*)0x200000006ad5 = 9; *(uint8_t*)0x200000006ad6 = 5; *(uint8_t*)0x200000006ad7 = 1; *(uint8_t*)0x200000006ad8 = 0x10; *(uint16_t*)0x200000006ad9 = 0x40; *(uint8_t*)0x200000006adb = 2; *(uint8_t*)0x200000006adc = 0xf1; *(uint8_t*)0x200000006add = 0xc; *(uint8_t*)0x200000006ade = 7; *(uint8_t*)0x200000006adf = 0x25; *(uint8_t*)0x200000006ae0 = 1; *(uint8_t*)0x200000006ae1 = 0x81; *(uint8_t*)0x200000006ae2 = 0x81; *(uint16_t*)0x200000006ae3 = 5; *(uint8_t*)0x200000006ae5 = 9; *(uint8_t*)0x200000006ae6 = 5; *(uint8_t*)0x200000006ae7 = 7; *(uint8_t*)0x200000006ae8 = 8; *(uint16_t*)0x200000006ae9 = 0x40; *(uint8_t*)0x200000006aeb = 6; *(uint8_t*)0x200000006aec = 0; *(uint8_t*)0x200000006aed = 1; *(uint8_t*)0x200000006aee = 7; *(uint8_t*)0x200000006aef = 0x25; *(uint8_t*)0x200000006af0 = 1; *(uint8_t*)0x200000006af1 = 2; *(uint8_t*)0x200000006af2 = 0; *(uint16_t*)0x200000006af3 = 0x10; *(uint8_t*)0x200000006af5 = 6; *(uint8_t*)0x200000006af6 = 0xe; memcpy((void*)0x200000006af7, "\x55\x5d\xc7\x8c", 4); *(uint8_t*)0x200000006afb = 9; *(uint8_t*)0x200000006afc = 5; *(uint8_t*)0x200000006afd = 5; *(uint8_t*)0x200000006afe = 4; *(uint16_t*)0x200000006aff = 0x200; *(uint8_t*)0x200000006b01 = 9; *(uint8_t*)0x200000006b02 = 0x40; *(uint8_t*)0x200000006b03 = 3; *(uint32_t*)0x200000006c00 = 0xa; *(uint64_t*)0x200000006c04 = 0x200000006b40; *(uint8_t*)0x200000006b40 = 0xa; *(uint8_t*)0x200000006b41 = 6; *(uint16_t*)0x200000006b42 = 0x200; *(uint8_t*)0x200000006b44 = 0x3b; *(uint8_t*)0x200000006b45 = 5; *(uint8_t*)0x200000006b46 = 9; *(uint8_t*)0x200000006b47 = 0x40; *(uint8_t*)0x200000006b48 = 0xa4; *(uint8_t*)0x200000006b49 = 0; *(uint32_t*)0x200000006c0c = 0x30; *(uint64_t*)0x200000006c10 = 0x200000006b80; *(uint8_t*)0x200000006b80 = 5; *(uint8_t*)0x200000006b81 = 0xf; *(uint16_t*)0x200000006b82 = 0x30; *(uint8_t*)0x200000006b84 = 3; *(uint8_t*)0x200000006b85 = 3; *(uint8_t*)0x200000006b86 = 0x10; *(uint8_t*)0x200000006b87 = 0xb; *(uint8_t*)0x200000006b88 = 0x10; *(uint8_t*)0x200000006b89 = 0x10; *(uint8_t*)0x200000006b8a = 0xa; *(uint8_t*)0x200000006b8b = 0x1c; STORE_BY_BITMASK(uint32_t, , 0x200000006b8c, 1, 0, 5); STORE_BY_BITMASK(uint32_t, , 0x200000006b8c, 0x7ffffd3, 5, 27); *(uint16_t*)0x200000006b90 = 0xff00; *(uint16_t*)0x200000006b92 = 0x1fb; *(uint32_t*)0x200000006b94 = 0; *(uint8_t*)0x200000006b98 = 0x18; *(uint8_t*)0x200000006b99 = 0x10; *(uint8_t*)0x200000006b9a = 0xa; *(uint8_t*)0x200000006b9b = 0xf; STORE_BY_BITMASK(uint32_t, , 0x200000006b9c, 3, 0, 5); STORE_BY_BITMASK(uint32_t, , 0x200000006b9c, 8, 5, 27); *(uint16_t*)0x200000006ba0 = 0xff00; *(uint16_t*)0x200000006ba2 = 0xd00; *(uint32_t*)0x200000006ba4 = 0; *(uint32_t*)0x200000006ba8 = 0xffc0cf; *(uint32_t*)0x200000006bac = 0xff0000; *(uint32_t*)0x200000006c18 = 1; *(uint32_t*)0x200000006c1c = 4; *(uint64_t*)0x200000006c20 = 0x200000006bc0; *(uint8_t*)0x200000006bc0 = 4; *(uint8_t*)0x200000006bc1 = 3; *(uint16_t*)0x200000006bc2 = 0x42f; res = -1; res = syz_usb_connect(/*speed=USB_SPEED_HIGH*/3, /*dev_len=*/0x504, /*dev=*/0x200000006600, /*conn_descs=*/0x200000006c00); if (res != -1) r[37] = res; break; case 55: *(uint8_t*)0x200000006c40 = 0x12; *(uint8_t*)0x200000006c41 = 1; *(uint16_t*)0x200000006c42 = 0x200; *(uint8_t*)0x200000006c44 = -1; *(uint8_t*)0x200000006c45 = -1; *(uint8_t*)0x200000006c46 = -1; *(uint8_t*)0x200000006c47 = 0x40; *(uint16_t*)0x200000006c48 = 0xcf3; *(uint16_t*)0x200000006c4a = 0x9271; *(uint16_t*)0x200000006c4c = 0x108; *(uint8_t*)0x200000006c4e = 1; *(uint8_t*)0x200000006c4f = 2; *(uint8_t*)0x200000006c50 = 3; *(uint8_t*)0x200000006c51 = 1; *(uint8_t*)0x200000006c52 = 9; *(uint8_t*)0x200000006c53 = 2; *(uint16_t*)0x200000006c54 = 0x48; *(uint8_t*)0x200000006c56 = 1; *(uint8_t*)0x200000006c57 = 1; *(uint8_t*)0x200000006c58 = 0; *(uint8_t*)0x200000006c59 = 0x80; *(uint8_t*)0x200000006c5a = 0xfa; *(uint8_t*)0x200000006c5b = 9; *(uint8_t*)0x200000006c5c = 4; *(uint8_t*)0x200000006c5d = 0; *(uint8_t*)0x200000006c5e = 0; *(uint8_t*)0x200000006c5f = 6; *(uint8_t*)0x200000006c60 = -1; *(uint8_t*)0x200000006c61 = 0; *(uint8_t*)0x200000006c62 = 0; *(uint8_t*)0x200000006c63 = 0; *(uint8_t*)0x200000006c64 = 9; *(uint8_t*)0x200000006c65 = 5; *(uint8_t*)0x200000006c66 = 1; *(uint8_t*)0x200000006c67 = 2; *(uint16_t*)0x200000006c68 = 0x200; *(uint8_t*)0x200000006c6a = 0; *(uint8_t*)0x200000006c6b = 0; *(uint8_t*)0x200000006c6c = 0; *(uint8_t*)0x200000006c6d = 9; *(uint8_t*)0x200000006c6e = 5; *(uint8_t*)0x200000006c6f = 0x82; *(uint8_t*)0x200000006c70 = 2; *(uint16_t*)0x200000006c71 = 0x200; *(uint8_t*)0x200000006c73 = 0; *(uint8_t*)0x200000006c74 = 0; *(uint8_t*)0x200000006c75 = 0; *(uint8_t*)0x200000006c76 = 9; *(uint8_t*)0x200000006c77 = 5; *(uint8_t*)0x200000006c78 = 0x83; *(uint8_t*)0x200000006c79 = 3; *(uint16_t*)0x200000006c7a = 0x40; *(uint8_t*)0x200000006c7c = 1; *(uint8_t*)0x200000006c7d = 0; *(uint8_t*)0x200000006c7e = 0; *(uint8_t*)0x200000006c7f = 9; *(uint8_t*)0x200000006c80 = 5; *(uint8_t*)0x200000006c81 = 4; *(uint8_t*)0x200000006c82 = 3; *(uint16_t*)0x200000006c83 = 0x40; *(uint8_t*)0x200000006c85 = 1; *(uint8_t*)0x200000006c86 = 0; *(uint8_t*)0x200000006c87 = 0; *(uint8_t*)0x200000006c88 = 9; *(uint8_t*)0x200000006c89 = 5; *(uint8_t*)0x200000006c8a = 5; *(uint8_t*)0x200000006c8b = 2; *(uint16_t*)0x200000006c8c = 0x200; *(uint8_t*)0x200000006c8e = 0; *(uint8_t*)0x200000006c8f = 0; *(uint8_t*)0x200000006c90 = 0; *(uint8_t*)0x200000006c91 = 9; *(uint8_t*)0x200000006c92 = 5; *(uint8_t*)0x200000006c93 = 6; *(uint8_t*)0x200000006c94 = 2; *(uint16_t*)0x200000006c95 = 0x200; *(uint8_t*)0x200000006c97 = 0; *(uint8_t*)0x200000006c98 = 0; *(uint8_t*)0x200000006c99 = 0; res = -1; res = syz_usb_connect_ath9k(/*speed=*/3, /*dev_len=*/0x5a, /*dev=*/0x200000006c40, /*conn_descs=*/0); if (res != -1) r[38] = res; break; case 56: *(uint8_t*)0x200000006cc0 = 0x12; *(uint8_t*)0x200000006cc1 = 1; *(uint16_t*)0x200000006cc2 = 0x310; *(uint8_t*)0x200000006cc4 = 2; *(uint8_t*)0x200000006cc5 = 0; *(uint8_t*)0x200000006cc6 = 0; *(uint8_t*)0x200000006cc7 = 8; *(uint16_t*)0x200000006cc8 = 0x525; *(uint16_t*)0x200000006cca = 0xa4a1; *(uint16_t*)0x200000006ccc = 0x40; *(uint8_t*)0x200000006cce = 1; *(uint8_t*)0x200000006ccf = 2; *(uint8_t*)0x200000006cd0 = 3; *(uint8_t*)0x200000006cd1 = 1; *(uint8_t*)0x200000006cd2 = 9; *(uint8_t*)0x200000006cd3 = 2; *(uint16_t*)0x200000006cd4 = 0x7d; *(uint8_t*)0x200000006cd6 = 1; *(uint8_t*)0x200000006cd7 = 1; *(uint8_t*)0x200000006cd8 = 6; *(uint8_t*)0x200000006cd9 = 0x10; *(uint8_t*)0x200000006cda = 0xb; *(uint8_t*)0x200000006cdb = 9; *(uint8_t*)0x200000006cdc = 4; *(uint8_t*)0x200000006cdd = 0; *(uint8_t*)0x200000006cde = 4; *(uint8_t*)0x200000006cdf = 3; *(uint8_t*)0x200000006ce0 = 2; *(uint8_t*)0x200000006ce1 = 6; *(uint8_t*)0x200000006ce2 = 0; *(uint8_t*)0x200000006ce3 = 0xe; *(uint8_t*)0x200000006ce4 = 0xb; *(uint8_t*)0x200000006ce5 = 0x24; *(uint8_t*)0x200000006ce6 = 6; *(uint8_t*)0x200000006ce7 = 0; *(uint8_t*)0x200000006ce8 = 0; memcpy((void*)0x200000006ce9, "\xd6\x01\x32\xf1\x49\xc6", 6); *(uint8_t*)0x200000006cef = 5; *(uint8_t*)0x200000006cf0 = 0x24; *(uint8_t*)0x200000006cf1 = 0; *(uint16_t*)0x200000006cf2 = 0xbb8; *(uint8_t*)0x200000006cf4 = 0xd; *(uint8_t*)0x200000006cf5 = 0x24; *(uint8_t*)0x200000006cf6 = 0xf; *(uint8_t*)0x200000006cf7 = 1; *(uint32_t*)0x200000006cf8 = 7; *(uint16_t*)0x200000006cfc = 0x32a; *(uint16_t*)0x200000006cfe = 8; *(uint8_t*)0x200000006d00 = 0x1f; *(uint8_t*)0x200000006d01 = 5; *(uint8_t*)0x200000006d02 = 0x24; *(uint8_t*)0x200000006d03 = 0x15; *(uint16_t*)0x200000006d04 = 0x101; *(uint8_t*)0x200000006d06 = 0x15; *(uint8_t*)0x200000006d07 = 0x24; *(uint8_t*)0x200000006d08 = 0x12; *(uint16_t*)0x200000006d09 = 0xfffc; *(uint64_t*)0x200000006d0b = 0x14f5e048ba817a3; *(uint64_t*)0x200000006d13 = 0x2a397ecbffc007a6; *(uint8_t*)0x200000006d1b = 7; *(uint8_t*)0x200000006d1c = 0x24; *(uint8_t*)0x200000006d1d = 0xa; *(uint8_t*)0x200000006d1e = 0xb; *(uint8_t*)0x200000006d1f = 9; *(uint8_t*)0x200000006d20 = 0xf; *(uint8_t*)0x200000006d21 = 2; *(uint8_t*)0x200000006d22 = 5; *(uint8_t*)0x200000006d23 = 0x24; *(uint8_t*)0x200000006d24 = 1; *(uint8_t*)0x200000006d25 = 1; *(uint8_t*)0x200000006d26 = -1; *(uint8_t*)0x200000006d27 = 5; *(uint8_t*)0x200000006d28 = 0x24; *(uint8_t*)0x200000006d29 = 0x15; *(uint16_t*)0x200000006d2a = 0x7ff; *(uint8_t*)0x200000006d2c = 8; *(uint8_t*)0x200000006d2d = 0x24; *(uint8_t*)0x200000006d2e = 0x1c; *(uint16_t*)0x200000006d2f = 5; *(uint8_t*)0x200000006d31 = 0x32; *(uint16_t*)0x200000006d32 = 0xa; *(uint8_t*)0x200000006d34 = 9; *(uint8_t*)0x200000006d35 = 5; *(uint8_t*)0x200000006d36 = 0x81; *(uint8_t*)0x200000006d37 = 3; *(uint16_t*)0x200000006d38 = 0x10; *(uint8_t*)0x200000006d3a = 7; *(uint8_t*)0x200000006d3b = 0x99; *(uint8_t*)0x200000006d3c = 0xb2; *(uint8_t*)0x200000006d3d = 9; *(uint8_t*)0x200000006d3e = 5; *(uint8_t*)0x200000006d3f = 0x82; *(uint8_t*)0x200000006d40 = 2; *(uint16_t*)0x200000006d41 = 8; *(uint8_t*)0x200000006d43 = 0x1a; *(uint8_t*)0x200000006d44 = 7; *(uint8_t*)0x200000006d45 = 0xc4; *(uint8_t*)0x200000006d46 = 9; *(uint8_t*)0x200000006d47 = 5; *(uint8_t*)0x200000006d48 = 3; *(uint8_t*)0x200000006d49 = 2; *(uint16_t*)0x200000006d4a = 0x3ff; *(uint8_t*)0x200000006d4c = 0xa6; *(uint8_t*)0x200000006d4d = 3; *(uint8_t*)0x200000006d4e = 0xa7; *(uint32_t*)0x200000007240 = 0xa; *(uint64_t*)0x200000007244 = 0x200000006d80; *(uint8_t*)0x200000006d80 = 0xa; *(uint8_t*)0x200000006d81 = 6; *(uint16_t*)0x200000006d82 = 0x300; *(uint8_t*)0x200000006d84 = 0xfb; *(uint8_t*)0x200000006d85 = 3; *(uint8_t*)0x200000006d86 = 0xc; *(uint8_t*)0x200000006d87 = -1; *(uint8_t*)0x200000006d88 = 1; *(uint8_t*)0x200000006d89 = 0; *(uint32_t*)0x20000000724c = 0x3c; *(uint64_t*)0x200000007250 = 0x200000006dc0; *(uint8_t*)0x200000006dc0 = 5; *(uint8_t*)0x200000006dc1 = 0xf; *(uint16_t*)0x200000006dc2 = 0x3c; *(uint8_t*)0x200000006dc4 = 6; *(uint8_t*)0x200000006dc5 = 7; *(uint8_t*)0x200000006dc6 = 0x10; *(uint8_t*)0x200000006dc7 = 2; STORE_BY_BITMASK(uint32_t, , 0x200000006dc8, 4, 0, 8); STORE_BY_BITMASK(uint32_t, , 0x200000006dc9, 7, 0, 4); STORE_BY_BITMASK(uint32_t, , 0x200000006dc9, 7, 4, 4); STORE_BY_BITMASK(uint32_t, , 0x200000006dca, 0x56a9, 0, 16); *(uint8_t*)0x200000006dcc = 0xb; *(uint8_t*)0x200000006dcd = 0x10; *(uint8_t*)0x200000006dce = 1; *(uint8_t*)0x200000006dcf = 4; *(uint16_t*)0x200000006dd0 = 0x42; *(uint8_t*)0x200000006dd2 = 2; *(uint8_t*)0x200000006dd3 = 3; *(uint16_t*)0x200000006dd4 = 0x63ac; *(uint8_t*)0x200000006dd6 = 9; *(uint8_t*)0x200000006dd7 = 3; *(uint8_t*)0x200000006dd8 = 0x10; *(uint8_t*)0x200000006dd9 = 0xb; *(uint8_t*)0x200000006dda = 7; *(uint8_t*)0x200000006ddb = 0x10; *(uint8_t*)0x200000006ddc = 2; STORE_BY_BITMASK(uint32_t, , 0x200000006ddd, 0x1a, 0, 8); STORE_BY_BITMASK(uint32_t, , 0x200000006dde, 7, 0, 4); STORE_BY_BITMASK(uint32_t, , 0x200000006dde, 0xb, 4, 4); STORE_BY_BITMASK(uint32_t, , 0x200000006ddf, 0xd5, 0, 16); *(uint8_t*)0x200000006de1 = 0x10; *(uint8_t*)0x200000006de2 = 0x10; *(uint8_t*)0x200000006de3 = 0xa; *(uint8_t*)0x200000006de4 = 0x7f; STORE_BY_BITMASK(uint32_t, , 0x200000006de5, 1, 0, 5); STORE_BY_BITMASK(uint32_t, , 0x200000006de5, 0x12f, 5, 27); *(uint16_t*)0x200000006de9 = 0xf00; *(uint16_t*)0x200000006deb = 1; *(uint32_t*)0x200000006ded = 0x3fc0; *(uint8_t*)0x200000006df1 = 0xb; *(uint8_t*)0x200000006df2 = 0x10; *(uint8_t*)0x200000006df3 = 1; *(uint8_t*)0x200000006df4 = 8; *(uint16_t*)0x200000006df5 = 0x40; *(uint8_t*)0x200000006df7 = 7; *(uint8_t*)0x200000006df8 = 5; *(uint16_t*)0x200000006df9 = 2; *(uint8_t*)0x200000006dfb = 4; *(uint32_t*)0x200000007258 = 8; *(uint32_t*)0x20000000725c = 0x78; *(uint64_t*)0x200000007260 = 0x200000006e00; *(uint8_t*)0x200000006e00 = 0x78; *(uint8_t*)0x200000006e01 = 3; memcpy((void*)0x200000006e02, "\xd7\xb4\xca\xdb\x72\xdc\xe2\x7c\xa7\xfb\x52\x09\xaa\xd1\xb3\x58\x5c\x81\x88\xf0\x61\x26\xd3\xf1\x8e\xdd\x4c\xfa\x47\xad\xdb\xd2\xa6\x71\x5d\xd4\xad\xfa\x69\x7f\x02\xbc\xb0\x89\xed\x20\x13\x26\x88\x85\xf9\xc7\x85\xbd\x7c\x5d\x4e\xe5\x0d\xe3\xce\xcd\x7a\x9d\x0b\x7b\x2e\x70\x82\x26\xe8\xac\xb1\xe9\x08\xb1\xf5\xc0\xc2\xa8\x13\x24\x65\xe4\x51\xfe\x49\xf1\x5e\x60\xc8\xd3\xb9\xc8\x43\x05\xd0\xdd\x8f\x63\x44\x80\x05\x02\x59\xca\xc3\xce\x9c\xfc\x95\x09\x2b\xd7\xe4\x91\x86\x6d", 118); *(uint32_t*)0x200000007268 = 0x13; *(uint64_t*)0x20000000726c = 0x200000006e80; *(uint8_t*)0x200000006e80 = 0x13; *(uint8_t*)0x200000006e81 = 3; memcpy((void*)0x200000006e82, "\x7d\x97\xd9\xeb\x8a\xf2\x94\x3b\x99\x85\xd3\x0c\xaa\xea\xd8\x9b\x5a", 17); *(uint32_t*)0x200000007274 = 4; *(uint64_t*)0x200000007278 = 0x200000006ec0; *(uint8_t*)0x200000006ec0 = 4; *(uint8_t*)0x200000006ec1 = 3; *(uint16_t*)0x200000006ec2 = 0x44a; *(uint32_t*)0x200000007280 = 4; *(uint64_t*)0x200000007284 = 0x200000006f00; *(uint8_t*)0x200000006f00 = 4; *(uint8_t*)0x200000006f01 = 3; *(uint16_t*)0x200000006f02 = 0x1c09; *(uint32_t*)0x20000000728c = 0x93; *(uint64_t*)0x200000007290 = 0x200000006f40; *(uint8_t*)0x200000006f40 = 0x93; *(uint8_t*)0x200000006f41 = 3; memcpy((void*)0x200000006f42, "\xa7\xe5\x52\x92\x38\xf7\x96\xc9\x00\x0c\x75\x3f\x41\xb8\x18\x31\x40\xf3\x91\x4b\x76\xbf\x1c\x42\x8e\xbe\x8d\x39\xc6\xf0\x72\xb4\x81\xec\xad\x74\x62\x74\xe7\xc5\x38\x79\x0d\x8c\x73\x0d\x20\x51\x7a\x22\x44\xa3\x78\x1b\x11\x5c\x07\xd4\x0e\x9e\xc9\xc0\x59\xf1\x2d\x0d\x15\xf4\x6c\xcf\x0c\xde\x26\xef\xa9\xd0\x2a\x11\x9e\x2c\xc5\x62\x7c\x7f\x42\x41\x24\x4d\x08\x43\xef\x00\x18\xb1\x2f\xc3\xcd\x46\x7b\x5f\xdc\xe5\x8a\x69\x75\xd0\x7a\xc3\x52\xa4\x2f\x16\x15\x17\x8d\xcb\x09\x90\xae\xca\x46\x46\x13\x06\x81\x6b\xec\xde\xb8\x96\xba\xc7\x65\xde\xd8\x1e\xbd\x75\xba\x4d\x97\x22\x9b\x15\xa9", 145); *(uint32_t*)0x200000007298 = 0xc2; *(uint64_t*)0x20000000729c = 0x200000007000; *(uint8_t*)0x200000007000 = 0xc2; *(uint8_t*)0x200000007001 = 3; memcpy((void*)0x200000007002, "\xd5\xa3\xd4\x83\x01\x2b\x31\xe4\x9d\xfa\x33\xfd\x95\x93\xb4\xb6\x68\xaa\x6f\x3f\x39\x30\x18\x37\xd9\x51\xda\xf2\x56\x31\x68\x19\xf5\xe7\x1f\xa6\x51\xbb\x06\xb2\xaf\x65\xaf\x27\xc7\xbf\x0f\xda\x1e\xaa\x1e\x32\x23\x1b\x75\xf4\xd0\x6d\x49\x23\xc7\x60\x13\xe9\xd7\x6a\x12\x20\x28\x16\xff\x87\x40\xa9\xfb\x4f\x2e\xce\xb2\x7b\xd2\xe1\xab\x1e\x7b\xd4\xba\x73\x14\xb3\x3d\x15\xe0\xfe\x65\xaa\x2b\x2e\x7f\xfb\x32\x36\xcb\x61\x54\x93\x39\x1f\xea\xb3\xbf\xb8\x28\x18\x2f\xb6\x0c\x4f\xd6\xfe\xf4\x22\xe1\x06\xf3\x84\xbe\x63\x39\x05\xca\x1a\xaf\x83\xd9\xdd\xb2\xa2\x90\x2e\x2a\x11\x7d\xe4\xe5\x96\x14\x58\x09\xb3\xb3\x4b\x1e\xa4\x32\xb4\x12\x39\x1f\xfb\x25\xac\x25\x5e\x7d\xa1\x1d\x99\x4e\x7e\x9e\x98\xe0\x72\x3a\x27\x57\xe5\x80\x95\x9d\xae\x6f\xa7\xac\x2a\xfb\x8d\xc5\x38\x4b\x4a", 192); *(uint32_t*)0x2000000072a4 = 0x5b; *(uint64_t*)0x2000000072a8 = 0x200000007100; *(uint8_t*)0x200000007100 = 0x5b; *(uint8_t*)0x200000007101 = 3; memcpy((void*)0x200000007102, "\xa7\x94\x09\x09\x68\xe4\x6e\x97\xb7\x26\x9f\xca\xe0\xf8\x18\xbf\x9a\x99\xa5\x0d\xe6\x0e\x5c\xda\x68\x47\x21\xbe\x6d\xc3\x48\x20\xf9\x12\xc3\x38\xd7\xdc\x8a\xc5\x0d\x93\xfc\x92\xa2\xeb\xde\x1a\x02\x65\x20\x89\x72\x66\x08\xa9\xe5\x87\x7f\x4c\xac\xf9\x1b\x9e\xec\x5b\x5e\xb2\xfc\x7f\xa7\xbb\x3d\x26\x60\x75\x37\xf0\xe5\x5d\x00\x79\x3e\x7c\xf1\x3b\xbb\x36\x7e", 89); *(uint32_t*)0x2000000072b0 = 0x90; *(uint64_t*)0x2000000072b4 = 0x200000007180; *(uint8_t*)0x200000007180 = 0x90; *(uint8_t*)0x200000007181 = 3; memcpy((void*)0x200000007182, "\xf9\x92\x6b\x0d\xae\x8c\x46\x23\x52\x10\x5e\xd1\xc4\xd3\xff\x50\xcc\x9c\xe9\x82\xc3\x97\xe9\x2e\x57\x61\x01\x31\x71\x90\xc2\x32\x7a\x2b\xa7\x23\x84\x41\x49\xe5\x5f\x4b\x96\x1d\x0f\x0d\xef\xbc\x7e\xdb\x70\xf5\xd6\x11\x69\x07\x42\x65\xac\xd8\x1c\xee\xc5\xa1\x5b\x66\xa5\xe5\x00\x92\x36\xd0\x62\x99\x4a\xf9\xaf\xcb\xe0\x47\x36\xaa\xad\x6b\xb5\x5c\xb3\x0e\x05\x7c\x42\xd0\xdf\x74\x81\x60\x3c\x3c\x95\x9b\x5e\x4e\x20\xf0\x53\x82\xa9\xd9\xad\x4c\x01\x68\x0a\xe3\x59\x7e\xf4\x03\xde\xdf\x0b\x6c\x53\xfd\xc7\x0d\x13\xed\x11\x6e\xf9\xea\x90\x20\x93\xf1\xc9\xf4\xaf\x4c\xec\x25", 142); res = -1; res = syz_usb_connect(/*speed=USB_SPEED_SUPER_PLUS*/6, /*dev_len=*/0x8f, /*dev=*/0x200000006cc0, /*conn_descs=*/0x200000007240); if (res != -1) r[39] = res; break; case 57: *(uint32_t*)0x200000007480 = 0x2c; *(uint64_t*)0x200000007484 = 0x2000000072c0; *(uint8_t*)0x2000000072c0 = 0x40; *(uint8_t*)0x2000000072c1 = 7; *(uint32_t*)0x2000000072c2 = 0x1b; *(uint8_t*)0x2000000072c6 = 0x1b; *(uint8_t*)0x2000000072c7 = 0xa; memcpy((void*)0x2000000072c8, "\x90\x73\x0f\x1d\x9e\x91\xd2\xe1\xdf\x57\x71\x43\xe1\x8c\x68\x0e\xac\xe6\xd6\xc1\x22\x99\x24\x61\x28", 25); *(uint64_t*)0x20000000748c = 0x200000007300; *(uint8_t*)0x200000007300 = 0; *(uint8_t*)0x200000007301 = 3; *(uint32_t*)0x200000007302 = 0x44; *(uint8_t*)0x200000007306 = 0x44; *(uint8_t*)0x200000007307 = 3; memcpy((void*)0x200000007308, "\x87\xd7\x4d\xd4\x60\x96\x80\x9a\x8f\x49\x88\xdd\xaa\x95\xa5\x32\xfb\xc2\x2d\x85\x85\xd1\x59\x28\x57\xad\x0a\xb0\x0c\x17\xa4\xfe\xf3\xb2\x29\xa0\x2f\xe0\xe3\x64\x93\x16\xbe\xd9\xf4\x4f\x58\x8b\x1f\x0b\x47\xbc\x86\x70\x51\x29\x44\x09\x38\xbd\x68\xa2\x9a\x84\xf8\x29", 66); *(uint64_t*)0x200000007494 = 0x200000007380; *(uint8_t*)0x200000007380 = 0; *(uint8_t*)0x200000007381 = 0xf; *(uint32_t*)0x200000007382 = 0x41; *(uint8_t*)0x200000007386 = 5; *(uint8_t*)0x200000007387 = 0xf; *(uint16_t*)0x200000007388 = 0x41; *(uint8_t*)0x20000000738a = 4; *(uint8_t*)0x20000000738b = 0x20; *(uint8_t*)0x20000000738c = 0x10; *(uint8_t*)0x20000000738d = 0xa; *(uint8_t*)0x20000000738e = 0; STORE_BY_BITMASK(uint32_t, , 0x20000000738f, 5, 0, 5); STORE_BY_BITMASK(uint32_t, , 0x20000000738f, 0xe85, 5, 27); *(uint16_t*)0x200000007393 = 0xf00; *(uint16_t*)0x200000007395 = 3; *(uint32_t*)0x200000007397 = 0xff00a0; *(uint32_t*)0x20000000739b = 0xff00f0; *(uint32_t*)0x20000000739f = 0x30; *(uint32_t*)0x2000000073a3 = 0xf; *(uint32_t*)0x2000000073a7 = 0xdfbf; *(uint8_t*)0x2000000073ab = 7; *(uint8_t*)0x2000000073ac = 0x10; *(uint8_t*)0x2000000073ad = 2; STORE_BY_BITMASK(uint32_t, , 0x2000000073ae, 4, 0, 8); STORE_BY_BITMASK(uint32_t, , 0x2000000073af, 4, 0, 4); STORE_BY_BITMASK(uint32_t, , 0x2000000073af, 1, 4, 4); STORE_BY_BITMASK(uint32_t, , 0x2000000073b0, 0xff, 0, 16); *(uint8_t*)0x2000000073b2 = 0xb; *(uint8_t*)0x2000000073b3 = 0x10; *(uint8_t*)0x2000000073b4 = 1; *(uint8_t*)0x2000000073b5 = 2; *(uint16_t*)0x2000000073b6 = 1; *(uint8_t*)0x2000000073b8 = 1; *(uint8_t*)0x2000000073b9 = 3; *(uint16_t*)0x2000000073ba = 9; *(uint8_t*)0x2000000073bc = 8; *(uint8_t*)0x2000000073bd = 0xa; *(uint8_t*)0x2000000073be = 0x10; *(uint8_t*)0x2000000073bf = 3; *(uint8_t*)0x2000000073c0 = 2; *(uint16_t*)0x2000000073c1 = 4; *(uint8_t*)0x2000000073c3 = 3; *(uint8_t*)0x2000000073c4 = 0xb6; *(uint16_t*)0x2000000073c5 = 5; *(uint64_t*)0x20000000749c = 0x200000007400; *(uint8_t*)0x200000007400 = 0x20; *(uint8_t*)0x200000007401 = 0x29; *(uint32_t*)0x200000007402 = 0xf; *(uint8_t*)0x200000007406 = 0xf; *(uint8_t*)0x200000007407 = 0x29; *(uint8_t*)0x200000007408 = 0xf; *(uint16_t*)0x200000007409 = 4; *(uint8_t*)0x20000000740b = 6; *(uint8_t*)0x20000000740c = 0x32; memcpy((void*)0x20000000740d, "\xb2\xc8\x4f\x72", 4); memcpy((void*)0x200000007411, "\xf5\xfb\x7b\x90", 4); *(uint64_t*)0x2000000074a4 = 0x200000007440; *(uint8_t*)0x200000007440 = 0x20; *(uint8_t*)0x200000007441 = 0x2a; *(uint32_t*)0x200000007442 = 0xc; *(uint8_t*)0x200000007446 = 0xc; *(uint8_t*)0x200000007447 = 0x2a; *(uint8_t*)0x200000007448 = 0x3a; *(uint16_t*)0x200000007449 = 0x60; *(uint8_t*)0x20000000744b = 4; *(uint8_t*)0x20000000744c = 4; *(uint8_t*)0x20000000744d = 7; *(uint16_t*)0x20000000744e = 0x8001; *(uint16_t*)0x200000007450 = 8; *(uint32_t*)0x200000007980 = 0x84; *(uint64_t*)0x200000007984 = 0x2000000074c0; *(uint8_t*)0x2000000074c0 = 0; *(uint8_t*)0x2000000074c1 = 0; *(uint32_t*)0x2000000074c2 = 0xcf; memcpy((void*)0x2000000074c6, "\x9f\x51\xc6\xee\x54\xbf\xc1\xfc\x30\xd7\x87\x49\x9a\xb2\x44\x93\xc2\xf3\x0f\x78\xfe\x08\x8e\x72\x4a\xd2\x9b\xad\xb6\xc2\x40\x68\x74\xa9\x09\xd8\x0e\x00\x00\x75\xbb\xe9\x2f\x6f\x4e\x8b\x35\x14\x48\x1d\x12\xb8\x69\xde\xb6\xf4\x7f\x3b\x45\x83\x69\xb7\xf0\x24\xfc\xc0\x23\x19\xe3\x8c\xb7\x46\x7c\x76\xb3\x70\xd3\x78\xee\x02\x56\xda\xa3\xac\xea\x1f\x71\xbe\x5e\x4c\x7d\x8a\x50\x03\x7b\xa8\x4e\x62\x44\x5b\xbd\x99\x0a\x26\xb4\x4f\x60\x19\x8d\x63\x50\x5f\xbf\x00\x5b\x96\x63\x7a\xbf\x5e\xb6\x92\xa2\xed\x0d\x58\x26\x92\xe3\xf2\x59\x38\x7e\xd9\xd1\x95\x59\x17\xdc\x53\xa2\x46\xeb\x20\xe2\x81\xe7\x83\x86\xed\x87\x34\xb8\x10\x75\xe4\x3b\x5b\x3e\x15\xea\x60\xdb\xd4\x97\xe0\x7a\xd8\x84\x79\x92\xdd\x87\x83\x1b\x20\xd0\x52\x63\xc1\x08\xd7\x01\x17\xe5\x21\x70\xef\xac\x17\x77\xd3\xd3\x76\x87\x63\x58\xc2\x29\x71\x72\xb2\xa0\x23\xb5\x2c\x05", 207); *(uint64_t*)0x20000000798c = 0x2000000075c0; *(uint8_t*)0x2000000075c0 = 0; *(uint8_t*)0x2000000075c1 = 0xa; *(uint32_t*)0x2000000075c2 = 1; *(uint8_t*)0x2000000075c6 = 2; *(uint64_t*)0x200000007994 = 0x200000007600; *(uint8_t*)0x200000007600 = 0; *(uint8_t*)0x200000007601 = 8; *(uint32_t*)0x200000007602 = 1; *(uint8_t*)0x200000007606 = 0xfc; *(uint64_t*)0x20000000799c = 0x200000007640; *(uint8_t*)0x200000007640 = 0x20; *(uint8_t*)0x200000007641 = 0; *(uint32_t*)0x200000007642 = 4; *(uint16_t*)0x200000007646 = 3; *(uint16_t*)0x200000007648 = 1; *(uint64_t*)0x2000000079a4 = 0x200000007680; *(uint8_t*)0x200000007680 = 0x20; *(uint8_t*)0x200000007681 = 0; *(uint32_t*)0x200000007682 = 4; *(uint16_t*)0x200000007686 = 0x1d20; *(uint16_t*)0x200000007688 = 0x20; *(uint64_t*)0x2000000079ac = 0x2000000076c0; *(uint8_t*)0x2000000076c0 = 0x40; *(uint8_t*)0x2000000076c1 = 7; *(uint32_t*)0x2000000076c2 = 2; *(uint16_t*)0x2000000076c6 = 0xfff8; *(uint64_t*)0x2000000079b4 = 0x200000007700; *(uint8_t*)0x200000007700 = 0x40; *(uint8_t*)0x200000007701 = 9; *(uint32_t*)0x200000007702 = 1; *(uint8_t*)0x200000007706 = 0xd; *(uint64_t*)0x2000000079bc = 0x200000007740; *(uint8_t*)0x200000007740 = 0x40; *(uint8_t*)0x200000007741 = 0xb; *(uint32_t*)0x200000007742 = 2; memcpy((void*)0x200000007746, "\x22\x89", 2); *(uint64_t*)0x2000000079c4 = 0x200000007780; *(uint8_t*)0x200000007780 = 0x40; *(uint8_t*)0x200000007781 = 0xf; *(uint32_t*)0x200000007782 = 2; *(uint16_t*)0x200000007786 = 2; *(uint64_t*)0x2000000079cc = 0x2000000077c0; *(uint8_t*)0x2000000077c0 = 0x40; *(uint8_t*)0x2000000077c1 = 0x13; *(uint32_t*)0x2000000077c2 = 6; memset((void*)0x2000000077c6, 255, 6); *(uint64_t*)0x2000000079d4 = 0x200000007800; *(uint8_t*)0x200000007800 = 0x40; *(uint8_t*)0x200000007801 = 0x17; *(uint32_t*)0x200000007802 = 6; memcpy((void*)0x200000007806, "\xee\xfa\x7a\x62\x01\x65", 6); *(uint64_t*)0x2000000079dc = 0x200000007840; *(uint8_t*)0x200000007840 = 0x40; *(uint8_t*)0x200000007841 = 0x19; *(uint32_t*)0x200000007842 = 2; memcpy((void*)0x200000007846, "\x01\xd3", 2); *(uint64_t*)0x2000000079e4 = 0x200000007880; *(uint8_t*)0x200000007880 = 0x40; *(uint8_t*)0x200000007881 = 0x1a; *(uint32_t*)0x200000007882 = 2; *(uint16_t*)0x200000007886 = 5; *(uint64_t*)0x2000000079ec = 0x2000000078c0; *(uint8_t*)0x2000000078c0 = 0x40; *(uint8_t*)0x2000000078c1 = 0x1c; *(uint32_t*)0x2000000078c2 = 1; *(uint8_t*)0x2000000078c6 = -1; *(uint64_t*)0x2000000079f4 = 0x200000007900; *(uint8_t*)0x200000007900 = 0x40; *(uint8_t*)0x200000007901 = 0x1e; *(uint32_t*)0x200000007902 = 1; *(uint8_t*)0x200000007906 = 0xf7; *(uint64_t*)0x2000000079fc = 0x200000007940; *(uint8_t*)0x200000007940 = 0x40; *(uint8_t*)0x200000007941 = 0x21; *(uint32_t*)0x200000007942 = 1; *(uint8_t*)0x200000007946 = 0xb; syz_usb_control_io(/*fd=*/r[39], /*descs=*/0x200000007480, /*resps=*/0x200000007980); break; case 58: syz_usb_disconnect(/*fd=*/r[38]); break; case 59: *(uint8_t*)0x200000007a40 = 0x12; *(uint8_t*)0x200000007a41 = 1; *(uint16_t*)0x200000007a42 = 0x110; *(uint8_t*)0x200000007a44 = 0; *(uint8_t*)0x200000007a45 = 0; *(uint8_t*)0x200000007a46 = 0; *(uint8_t*)0x200000007a47 = -1; *(uint16_t*)0x200000007a48 = 0x46d; *(uint16_t*)0x200000007a4a = 0xc08d; *(uint16_t*)0x200000007a4c = 0x40; *(uint8_t*)0x200000007a4e = 1; *(uint8_t*)0x200000007a4f = 2; *(uint8_t*)0x200000007a50 = 3; *(uint8_t*)0x200000007a51 = 1; *(uint8_t*)0x200000007a52 = 9; *(uint8_t*)0x200000007a53 = 2; *(uint16_t*)0x200000007a54 = 0x2d; *(uint8_t*)0x200000007a56 = 1; *(uint8_t*)0x200000007a57 = 1; *(uint8_t*)0x200000007a58 = 4; *(uint8_t*)0x200000007a59 = 0x50; *(uint8_t*)0x200000007a5a = 0x10; *(uint8_t*)0x200000007a5b = 9; *(uint8_t*)0x200000007a5c = 4; *(uint8_t*)0x200000007a5d = 0; *(uint8_t*)0x200000007a5e = 0xf9; *(uint8_t*)0x200000007a5f = 2; *(uint8_t*)0x200000007a60 = 3; *(uint8_t*)0x200000007a61 = 1; *(uint8_t*)0x200000007a62 = 2; *(uint8_t*)0x200000007a63 = 5; *(uint8_t*)0x200000007a64 = 9; *(uint8_t*)0x200000007a65 = 0x21; *(uint16_t*)0x200000007a66 = 0x81; *(uint8_t*)0x200000007a68 = 8; *(uint8_t*)0x200000007a69 = 1; *(uint8_t*)0x200000007a6a = 0x22; *(uint16_t*)0x200000007a6b = 0x6e7; *(uint8_t*)0x200000007a6d = 9; *(uint8_t*)0x200000007a6e = 5; *(uint8_t*)0x200000007a6f = 0x81; *(uint8_t*)0x200000007a70 = 3; *(uint16_t*)0x200000007a71 = 0x10; *(uint8_t*)0x200000007a73 = 8; *(uint8_t*)0x200000007a74 = 0xc; *(uint8_t*)0x200000007a75 = 0x6e; *(uint8_t*)0x200000007a76 = 9; *(uint8_t*)0x200000007a77 = 5; *(uint8_t*)0x200000007a78 = 2; *(uint8_t*)0x200000007a79 = 3; *(uint16_t*)0x200000007a7a = 0x200; *(uint8_t*)0x200000007a7c = 8; *(uint8_t*)0x200000007a7d = 1; *(uint8_t*)0x200000007a7e = 0x50; *(uint32_t*)0x200000007f40 = 0xa; *(uint64_t*)0x200000007f44 = 0x200000007a80; *(uint8_t*)0x200000007a80 = 0xa; *(uint8_t*)0x200000007a81 = 6; *(uint16_t*)0x200000007a82 = 0x310; *(uint8_t*)0x200000007a84 = 0x48; *(uint8_t*)0x200000007a85 = 0xa5; *(uint8_t*)0x200000007a86 = 0xca; *(uint8_t*)0x200000007a87 = 8; *(uint8_t*)0x200000007a88 = 0x10; *(uint8_t*)0x200000007a89 = 0; *(uint32_t*)0x200000007f4c = 0x30; *(uint64_t*)0x200000007f50 = 0x200000007ac0; *(uint8_t*)0x200000007ac0 = 5; *(uint8_t*)0x200000007ac1 = 0xf; *(uint16_t*)0x200000007ac2 = 0x30; *(uint8_t*)0x200000007ac4 = 4; *(uint8_t*)0x200000007ac5 = 0xa; *(uint8_t*)0x200000007ac6 = 0x10; *(uint8_t*)0x200000007ac7 = 3; *(uint8_t*)0x200000007ac8 = 0; *(uint16_t*)0x200000007ac9 = 5; *(uint8_t*)0x200000007acb = 0; *(uint8_t*)0x200000007acc = 1; *(uint16_t*)0x200000007acd = 0x8a; *(uint8_t*)0x200000007acf = 0x10; *(uint8_t*)0x200000007ad0 = 0x10; *(uint8_t*)0x200000007ad1 = 0xa; *(uint8_t*)0x200000007ad2 = 0xa; STORE_BY_BITMASK(uint32_t, , 0x200000007ad3, 1, 0, 5); STORE_BY_BITMASK(uint32_t, , 0x200000007ad3, 0, 5, 27); *(uint16_t*)0x200000007ad7 = 0xf00f; *(uint16_t*)0x200000007ad9 = 7; *(uint32_t*)0x200000007adb = 0x3f00; *(uint8_t*)0x200000007adf = 0xa; *(uint8_t*)0x200000007ae0 = 0x10; *(uint8_t*)0x200000007ae1 = 3; *(uint8_t*)0x200000007ae2 = 0; *(uint16_t*)0x200000007ae3 = 4; *(uint8_t*)0x200000007ae5 = 4; *(uint8_t*)0x200000007ae6 = 8; *(uint16_t*)0x200000007ae7 = 0xfff8; *(uint8_t*)0x200000007ae9 = 7; *(uint8_t*)0x200000007aea = 0x10; *(uint8_t*)0x200000007aeb = 2; STORE_BY_BITMASK(uint32_t, , 0x200000007aec, 4, 0, 8); STORE_BY_BITMASK(uint32_t, , 0x200000007aed, 0, 0, 4); STORE_BY_BITMASK(uint32_t, , 0x200000007aed, 5, 4, 4); STORE_BY_BITMASK(uint32_t, , 0x200000007aee, 0x8001, 0, 16); *(uint32_t*)0x200000007f58 = 0xa; *(uint32_t*)0x200000007f5c = 4; *(uint64_t*)0x200000007f60 = 0x200000007b00; *(uint8_t*)0x200000007b00 = 4; *(uint8_t*)0x200000007b01 = 3; *(uint16_t*)0x200000007b02 = 0x437; *(uint32_t*)0x200000007f68 = 0xf2; *(uint64_t*)0x200000007f6c = 0x200000007b40; *(uint8_t*)0x200000007b40 = 0xf2; *(uint8_t*)0x200000007b41 = 3; memcpy((void*)0x200000007b42, "\xf0\x01\x99\x69\xb3\x8f\x6a\xfa\xbd\x6c\x10\x59\x67\xf2\xb7\x9c\x11\x6b\xf5\x2e\x6a\xf5\x49\x27\x19\x39\xcb\xea\xcd\xab\x5c\x85\x03\xce\xe7\xd1\xa6\x7a\x62\xea\x49\x1b\x6b\x2f\x86\x47\x13\x3f\x15\xb8\xe9\x70\x7e\x4a\x77\x57\x7e\x8a\xfd\x8a\x12\x84\x45\x9b\x66\xc7\xbe\x93\xc4\x3e\x84\xef\xcf\xc2\xf7\x3e\x93\xd2\x95\x99\x8c\xc2\xf4\x95\xae\x5b\x1a\x3d\x5e\x12\xef\x6e\x64\x66\x4a\x3b\x5c\x79\x52\x8b\x01\x19\xf7\x8b\x0a\x61\xd8\x07\x23\x25\x37\xeb\x3d\x9c\x09\xad\xd9\x38\x23\xe6\xf8\x78\xbb\xba\x00\x89\x8b\xe1\x01\x7f\xaf\x4e\x5f\x14\xd3\x87\x40\x1c\x45\x64\x59\x54\xc0\x4f\x8c\x83\xf9\xe5\xf0\xae\x99\x13\xd9\xcc\xb8\x8e\x75\x16\xd8\x0f\x8e\x21\xc3\xb6\x10\x42\x92\x58\x16\x92\x48\xa0\x16\xde\x14\x4a\xbc\xe7\x90\x5f\x4d\xd3\xbf\x26\x98\xe9\xf3\xa5\xfe\xbc\x7c\x10\xef\x4e\xd2\x98\xe5\xf8\xfa\xcb\xb3\xc9\x34\x4b\xb3\xab\x33\x56\x8a\x0f\x64\xf4\x28\xd6\x0d\xab\xe2\xbf\xe7\x95\xdf\x06\x03\xcd\xf7\x6f\x60\x62\x41\xfd\xd8\x9c\x8f\xf9\xfe\x55\xee\x23\x95\xfd", 240); *(uint32_t*)0x200000007f74 = 4; *(uint64_t*)0x200000007f78 = 0x200000007c40; *(uint8_t*)0x200000007c40 = 4; *(uint8_t*)0x200000007c41 = 3; *(uint16_t*)0x200000007c42 = 0x2c0a; *(uint32_t*)0x200000007f80 = 0x89; *(uint64_t*)0x200000007f84 = 0x200000007c80; *(uint8_t*)0x200000007c80 = 0x89; *(uint8_t*)0x200000007c81 = 3; memcpy((void*)0x200000007c82, "\x05\xb7\x61\x5d\x7a\x2b\xa8\x3f\x59\x16\xd5\x85\xe5\x29\x06\x69\xa0\xc2\x43\xe1\xc6\x5f\x43\xd6\xc7\x68\x07\x67\xf0\xda\x68\x05\xce\x35\x66\x41\x3a\x20\xf4\xb8\x66\x4b\x77\x79\x9c\x5c\x60\x61\xd9\xd1\x90\x75\xd2\xf8\x9b\x88\x0c\xaa\x62\x2d\x3a\xa9\x10\x8e\x52\x22\xe5\x53\x36\xbf\x78\x50\xd2\xf7\x99\x0a\x13\x14\xb0\xbe\x81\xd6\x06\xf8\xa9\x9a\x67\x05\xe0\xac\x44\x87\x20\x72\x36\x6a\xba\xea\x5f\x97\xd7\xca\x08\xed\x1e\xb2\x5b\x70\x7c\x92\x99\x1e\x55\x37\xf9\x45\xaa\x40\x1d\x76\x13\x49\xb6\x28\xd6\xc9\x28\xc1\xcf\xe5\xb0\x9f\xd1\x32\x72", 135); *(uint32_t*)0x200000007f8c = 0xb8; *(uint64_t*)0x200000007f90 = 0x200000007d40; *(uint8_t*)0x200000007d40 = 0xb8; *(uint8_t*)0x200000007d41 = 3; memcpy((void*)0x200000007d42, "\xf0\x4a\x78\x64\x8b\xb1\x3a\xd6\xc5\x3b\x44\xe4\x2e\xd2\xf2\x4d\x32\x05\xbf\x51\x61\x67\x4f\xf3\x75\xec\xfa\x9f\x71\x0d\xd4\xd5\x2e\x29\x77\x9b\xc4\xc1\xd4\x1f\xaf\x1b\x2e\x02\xfa\x2c\xb4\xca\x6c\x44\x96\x81\xb5\xc8\x8b\x37\x75\xf8\x2b\xab\xde\x22\x58\xf8\xa0\x01\xd8\x11\xf8\xb6\x4c\xe0\x75\x3b\x22\x8c\x16\x18\x09\x77\x0f\x39\x16\x0b\xa4\xea\x92\x49\x0a\x38\xf8\x2c\x3f\x18\xb4\x4c\x81\xa1\x48\xc4\x8b\xbc\x4f\x71\x6e\x64\xa8\x5a\x98\x5f\x35\x70\xd6\x13\x2a\x4a\xc6\xe9\x7f\x0a\xe7\x29\x65\x82\x87\x9c\x5d\x4e\x27\x7b\xe3\xd5\x86\x7d\xc3\xdf\x26\x06\x87\x9b\xd5\x28\x12\x25\xa3\x4f\x3f\xeb\xa4\x36\xee\xc1\x6d\xdf\xbe\x61\x15\x74\xbe\x64\x5a\x71\xc5\xe8\xbe\x49\x4e\x27\x91\x83\x33\xf2\x43\x1a\xef\xf2\xe9\xfe\xd0\x60\x84\x28", 182); *(uint32_t*)0x200000007f98 = 4; *(uint64_t*)0x200000007f9c = 0x200000007e00; *(uint8_t*)0x200000007e00 = 4; *(uint8_t*)0x200000007e01 = 3; *(uint16_t*)0x200000007e02 = 0x40f; *(uint32_t*)0x200000007fa4 = 4; *(uint64_t*)0x200000007fa8 = 0x200000007e40; *(uint8_t*)0x200000007e40 = 4; *(uint8_t*)0x200000007e41 = 3; *(uint16_t*)0x200000007e42 = 0x860; *(uint32_t*)0x200000007fb0 = 4; *(uint64_t*)0x200000007fb4 = 0x200000007e80; *(uint8_t*)0x200000007e80 = 4; *(uint8_t*)0x200000007e81 = 3; *(uint16_t*)0x200000007e82 = 0xf4ef; *(uint32_t*)0x200000007fbc = 4; *(uint64_t*)0x200000007fc0 = 0x200000007ec0; *(uint8_t*)0x200000007ec0 = 4; *(uint8_t*)0x200000007ec1 = 3; *(uint16_t*)0x200000007ec2 = 0x3001; *(uint32_t*)0x200000007fc8 = 4; *(uint64_t*)0x200000007fcc = 0x200000007f00; *(uint8_t*)0x200000007f00 = 4; *(uint8_t*)0x200000007f01 = 3; *(uint16_t*)0x200000007f02 = 0x2009; res = -1; res = syz_usb_connect(/*speed=*/0, /*dev_len=*/0x3f, /*dev=*/0x200000007a40, /*conn_descs=*/0x200000007f40); if (res != -1) r[40] = res; break; case 60: syz_usb_ep_read(/*fd=*/r[40], /*ep=*/0, /*len=*/0x1000, /*data=*/0x200000008000); break; case 61: memcpy((void*)0x200000009000, "\x57\xbb\xa2\xf0\x4f\x39\x45\xda\x7a\x47\x03\x77\x10\xf6\xd5\x3d\x8d\xfa\xd8\xa9\x6c\x57\xe1\x1c\xf5\xfc\xfe\xe4\x34\xfc\xe8\x80\x38\xe1\x90\x4e\xcc\x27\x12\x33\x41\x18\xe5\x00\x2b\x0c\x10\x7c\x28\x6e\xb9\x03\x14\x23\x3f\xd5\xce\x1d\x9e\xa5\xda\x00\x76\x74\x11\x02\xd8\x85\x17\x46\x3f\xf1\x18\xbd\x93\x12\x82\x41\x2d\xe1\xf5\xea\x71\xeb\x2b\xec\x91\xb8\x2b\x7f\x7b\x64\xf8\xaa\xe1\xd5\x8e\x32\xde\x1d\xee\xb1\xc8\x26\x4d\x59\xd6\x39\xa1\x94\x5f\x00\x90\x27\x5e\x6b\xdb\xf1\x8e\x86\x68\x5c\xcb\x60\xa5\xfe\xc9\xc7\xce\xba\xc5\xd0\x5b\x5c\x84\xe6\x11\x6f\x89\xd4\x43\xfa\xd3\xce\x74\xd8\x20\x80", 148); syz_usb_ep_write(/*fd=*/r[37], /*ep=*/6, /*len=*/0x94, /*data=*/0x200000009000); break; case 62: syz_usbip_server_init(/*speed=USB_SPEED_SUPER*/5); break; } } int main(void) { syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000ul, /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/7ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x200001000000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); const char* reason; (void)reason; if ((reason = setup_fault())) printf("the reproducer may not work as expected: fault injection setup failed: %s\n", reason); use_temporary_dir(); do_sandbox_none(); return 0; } : In function 'execute_call': :6418:17: error: '__NR_socketcall' undeclared (first use in this function) :6418:17: note: each undeclared identifier is reported only once for each function it appears in At top level: cc1: note: unrecognized command-line option '-Wno-unused-command-line-argument' may have been intended to silence earlier diagnostics compiler invocation: x86_64-linux-gnu-gcc [-o /tmp/syz-executor3681020965 -DGOOS_linux=1 -DGOARCH_amd64=1 -DHOSTGOOS_linux=1 -x c - -m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -static-pie] --- FAIL: TestGenerate/linux/amd64/22 (1.08s) csource_test.go:157: opts: {Threaded:true Repeat:true RepeatTimes:0 Procs:0 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:true USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}} program: r0 = openat$ubi_ctrl(0xffffffffffffff9c, &(0x7f0000000000), 0x44502, 0x0) (fail_nth: 1) ioctl$USBDEVFS_BULK(r0, 0xc0185502, &(0x7f0000000140)={{{0xa, 0x1}}, 0xc5, 0x1, &(0x7f0000000040)="e1ee87a8f76c257b75c1073c7058be82fe3362bbcca54df520d1ca8fa91b50810f876d1fab0a1cc214c35f4e266e71643d8c95988087e46a87c1a715effe06169ab65fa18e5414404f30c0005561397ed1d9557c66a994b954efa714985a2ae409df8111fa8a361408734d15b30cd9ab3fa50e088b3d2bafdc689ea3cb7e52a9fc7f5d48d245d4097bb933725bd9e29371cd7780b4ec8d6e2dbf861aad04d6594f5ebd2ffab1e8a68c5157cae2f46f6fa3aeac0e3f8b7b97630f346bc3276e53ca72b417f8"}) (async) ioctl$F2FS_IOC_SET_COMPRESS_OPTION(r0, 0x4002f516, &(0x7f0000000180)={0x4, 0x9}) (rerun: 4) setsockopt$inet6_tcp_TCP_REPAIR(r0, 0x6, 0x13, &(0x7f00000001c0)=0xffffffffffffffff, 0x4) setsockopt$inet6_group_source_req(r0, 0x29, 0x2b, &(0x7f0000000200)={0x4, {{0xa, 0x4e20, 0x4, @private0={0xfc, 0x0, '\x00', 0x1}}}, {{0xa, 0x4e21, 0x1, @local, 0x9}}}, 0x108) ioctl$USBDEVFS_GETDRIVER(r0, 0x41045508, &(0x7f0000000340)={0x4b, "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"}) setsockopt$XDP_UMEM_REG(r0, 0x11b, 0x4, &(0x7f0000000580)={&(0x7f0000000480)=""/222, 0x8000, 0x1800, 0x1, 0x3}, 0x20) ioctl$BLKSECDISCARD(r0, 0x127d, &(0x7f00000005c0)=0x4) ioctl$DRM_IOCTL_SYNCOBJ_FD_TO_HANDLE_FD(r0, 0xc01864c2, &(0x7f0000000600)={0x0, 0x0, r0}) ioctl$DRM_IOCTL_MODE_REVOKE_LEASE(0xffffffffffffffff, 0xc00464c9, &(0x7f00000006c0)) syz_80211_inject_frame(&(0x7f0000000000)=@broadcast, &(0x7f0000000040)=@data_frame={@a_msdu=@type01={{0x0, 0x2, 0xb, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1}, {0x2}, @device_b, @from_mac, @initial, {0x9, 0x5bb}, "", @value={0x1, 0x1, 0x1, 0x1, 0x9}, @value=@ver_80211n={0x0, 0x2, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x1}}, @random="055ba71928a79f8625942b8e22a62e7d0ef5d26afb5923f0a1"}, 0x37) syz_80211_join_ibss(&(0x7f0000000080)='wlan0\x00', &(0x7f00000000c0)=@random="f20f01439229172ec7637d66e2f075", 0xf, 0x2) syz_btf_id_by_name$bpf_lsm(&(0x7f0000000100)='bpf_lsm_inode_getsecurity\x00') r1 = syz_clone(0x1000, &(0x7f0000000140)="ff427f0e4659ab5893d3badb31b3b1b89da52b0f3d3489a18a5837ba6e04f21cf0581de7946c2e29adef18036a10ce361250a5667064b4d456c64c307d63cfe3422c3fafd450315e8366", 0x4a, &(0x7f00000001c0), &(0x7f0000000200), &(0x7f0000000240)="b201d139a4344e463d89913bee9c68af3f34090b9f6244af88c8fe07ce4ffe9b81210da0fc44559d985ad5bb1dc9672ce4d1df554aafb78053f4") r2 = syz_clone3(&(0x7f0000000440)={0x100400, &(0x7f0000000280)=0xffffffffffffffff, &(0x7f00000002c0)=0x0, &(0x7f0000000300)=0x0, {0x2a}, &(0x7f0000000340)=""/21, 0x15, &(0x7f0000000380)=""/120, &(0x7f0000000400)=[r1], 0x1}, 0x58) syz_create_resource$binfmt(&(0x7f00000004c0)='./file0\x00') syz_emit_ethernet(0xd1, &(0x7f0000000500)={@random="44f71c1405a2", @multicast, @val={@void, {0x8100, 0x1, 0x0, 0x2}}, {@mpls_mc={0x8848, {[{0xf, 0x0, 0x1}, {0xc, 0x0, 0x1}, {0x2, 0x0, 0x1}, {0x1c}], @llc={@snap={0x0, 0x0, "67a3", "c85dcd", 0x88ca, "e303e8e52af9a170943b5f0b2861a3effb852560b1007d1865564aed84dfbf75279a5a950a513b7559f042b12f0d592b5a8bb399b9a071f4d2b9fb4903fb61b866bd20c43a437cc6915d6e19f058e23b4cfbf7d66b0d974aa6f1687cc06941e28e8515a079742b9f8383f09b8e29493cdfef26beab29802d1e85d1a50ef5670a049551dab256fd3dc3fd667fd4a29c752e4f3ba700720a9fe2ecb47e232cfbb80832213bbaf3"}}}}}}, &(0x7f0000000600)={0x1, 0x4, [0x58f, 0x8001, 0x2bc, 0xf]}) syz_emit_vhci(&(0x7f0000000640)=@HCI_ACLDATA_PKT={0x2, {0xc9, 0x1, 0x0, 0xa2}, @l2cap_cid_signaling={{0x9e}, [@l2cap_info_req={{0xa, 0x4, 0x2}, {0x5}}, @l2cap_move_chan_rsp={{0xf, 0x7, 0x4}, {0x1, 0x1ff}}, @l2cap_info_rsp={{0xb, 0x8, 0x64}, {0x1, 0x9, "7d0c09e4aa3ea5a78a46cf8d66857ba4107e5cf880621c4c433cdb0a8bd03a4f9c8f390145f9db0c1dd85656d6b3dc38afb84d7e118e1cbdd6926b1876be6a6553bafa1bfef971281350403e18e82e89f42bb6d51b166bd96dabf25dbb28f01e"}}, @l2cap_disconn_req={{0x6, 0x64, 0x4}, {0x9, 0x1}}, @l2cap_move_chan_cfm={{0x10, 0x2, 0x4}, {0xffff, 0x9}}, @l2cap_create_chan_rsp={{0xd, 0x4f, 0x8}, {0x6, 0x8001, 0x8, 0x3}}, @l2cap_conn_rsp={{0x3, 0x48, 0x8}, {0x4, 0x8, 0x6837, 0x4}}]}}, 0xa7) syz_extract_tcp_res(&(0x7f0000000700), 0x0, 0x507) r6 = openat$cuse(0xffffffffffffff9c, &(0x7f0000000740), 0x2, 0x0) ioctl$DRM_IOCTL_GET_CLIENT(0xffffffffffffffff, 0xc0286405, &(0x7f0000002a80)={0x7, 0x4, {r5}, {0x0}, 0x100000000, 0x3}) shmctl$auto_IPC_STAT(0x8, 0x2, &(0x7f0000002b80)={{0x1, 0x0, 0xee00, 0x5, 0x9, 0x8c, 0x6}, 0xe0000, 0x3, 0x6, 0x2c54, @raw=0x7fffffff, @raw=0x5, 0x3, 0x0, &(0x7f0000002ac0)="34d14592330d2effe2b242ce1c79f97a737dc0f7745d84eec469048ba4772d3ca2f34e3a83b5edadf6550e5b412cf5ee749b3324b30032ad2ae14cfa29ef4ecf97416fdc53d73bb80ea139aac1bf364ddcbe7409342155ae126f63d9e3ab1d5104befdd9", &(0x7f0000002b40)="e550413c2f469c9ef08eb7193b0a242e58befe012aa89d7c"}) r9 = setfsuid$auto(0xee01) r10 = getuid() fstat(r3, &(0x7f0000002ec0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) ioctl$DRM_IOCTL_GET_CLIENT(0xffffffffffffffff, 0xc0286405, &(0x7f0000002f40)={0x9, 0x6, {0xffffffffffffffff}, {0xee01}, 0x9, 0x8}) ioctl$auto_XFS_IOC_SWAPEXT(0xffffffffffffffff, 0xc0c0586d, &(0x7f0000002f80)={0x1, @inferred=r3, @inferred=r3, 0x0, 0x0, '\x00', {0x100, 0x6, 0x4, 0x0, 0xee01, 0x4, 0x2, 0xe78bc90, {0x9e350, 0x10}, {0x4, 0x7}, {0x3a83, 0x80000000}, 0xff, 0x8, 0x7, 0x7, 0x5, 0xd275, 0x6, 0x1, 0xff74, 0x5, '\x00', 0xf0e, 0x400, 0x2, 0x8001}}) msgctl$auto_IPC_RMID(0x2, 0x0, &(0x7f00000030c0)={{0x80, 0x0, 0xee01, 0x8, 0x3, 0x3, 0x6}, &(0x7f0000003040)=0xf, &(0x7f0000003080)=0x29, 0xfffffffffffff801, 0x6b4c, 0x0, 0x3, 0x800, 0x2, 0xbf09, 0x3, @inferred=r2, @inferred=r4}) ioctl$auto_KVM_GET_DEVICE_ATTR(0xffffffffffffffff, 0x4018aee2, &(0x7f0000003140)={0xb407, 0xee01, 0x8, 0x8}) statx$auto(0xffffffffffffff9c, &(0x7f0000003180)='./file0\x00', 0x4, 0x2, &(0x7f00000031c0)={0x8, 0xfffffffe, 0x0, 0xa, 0x0, 0xee00, 0xf, 0x5d3e, 0x5, 0x10, 0xff89, 0x100, {0xf, 0x8}, {0xfff, 0x2}, {0x3, 0x7fff}, {0xffffffffffffffff, 0x9}, 0x0, 0x3, 0x7, 0x8d6, 0x383d, 0x4, 0xb0d4, 0x503, 0x2, 0x0, 0x5, 0x2, [0xfffffffffffffffb, 0xff, 0x3, 0x259, 0xbe9, 0xff, 0x6, 0x800, 0x9]}) shmctl$auto_IPC_SET(0x3, 0x1, &(0x7f0000004300)={{0x5, 0xee00, 0xee00, 0x3, 0x7ff, 0x2, 0x5}, 0x2, 0x401, 0x3, 0xfffffffffffffffe, @inferred=r1, @inferred=r4, 0xfffe, 0x0, &(0x7f00000032c0)="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", &(0x7f00000042c0)="14dc2c36c1a4730f33f0a47756b437792e9ac78f742f821e328341e02b"}) newfstatat(0xffffffffffffff9c, &(0x7f0000004600)='./file0\x00', &(0x7f0000004640)={0x0, 0x0, 0x0, 0x0, 0x0}, 0x0) fstat(r3, &(0x7f00000046c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) shmctl$auto(0x0, 0x7, &(0x7f00000058c0)={{0xffffffff, 0xee00, 0xffffffffffffffff, 0x2, 0x9, 0x2, 0x4}, 0x6, 0x4, 0x4, 0x1, @raw, @inferred=r4, 0x40, 0x0, &(0x7f0000004840)="be999eee258959e93a2aa68dc2cb1d93b819d2b9d9e678e2e2506d54510e920728d75815bb8027e6a021febb8f0996f8add6877b74ce5eace74504cf3a4f3ac46a5a59400342351940bfb8767dd9955c9e9a9941", &(0x7f00000048c0)="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lstat$auto(&(0x7f0000005940)='./file0\x00', &(0x7f0000005980)={0x100000000, 0x7d80, 0x1, 0x40, 0xffffffffffffffff, 0x0, 0x0, 0x7, 0xfffffffffffffffb, 0x0, 0x2, 0xe6, 0x2, 0x4, 0xa03f, 0x10, 0x7}) syz_fuse_handle_req(r6, 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", 0x2000, &(0x7f0000005b80)={&(0x7f0000002780)={0x50, 0xffffffffffffffda, 0x7, {0x7, 0x2d, 0x8, 0x1020000, 0xfffc, 0x401, 0x12, 0x6, 0x0, 0x0, 0x40, 0xce}}, &(0x7f0000002800)={0x18, 0x0, 0x6, {0xbb}}, &(0x7f0000002840)={0x18, 0x0, 0x1, {0x5}}, &(0x7f0000002880)={0x18, 0xfffffffffffffff5, 0x4}, &(0x7f00000028c0)={0x18, 0xfffffffffffffffe, 0x3, {0x7}}, &(0x7f0000002900)={0x28, 0x0, 0x300000000000, {{0x1, 0x8, 0x0, r1}}}, &(0x7f0000002940)={0x60, 0x0, 0xc, {{0x0, 0xff, 0x2, 0x41, 0x40, 0x6, 0x8dd, 0x5}}}, &(0x7f00000029c0)={0x18, 0xffffffffffffffda, 0x9, {0x5}}, &(0x7f0000002a00)={0x16, 0x0, 0x6, {'\xff\xff\xff\xff\xff\xff'}}, &(0x7f0000002a40)={0x20, 0x0, 0x0, {0x0, 0x1e}}, &(0x7f0000002c00)={0x78, 0xfffffffffffffffe, 0x3, {0x8, 0x6, 0x0, {0x0, 0x8, 0x2, 0x8, 0x80, 0x5, 0x3482, 0xa246, 0x80000000, 0x4000, 0x3e08, r7, r8, 0x7f, 0x3}}}, &(0x7f0000002c80)={0x90, 0xffffffffffffffda, 0x2, {0x6, 0x0, 0x2, 0x8, 0xfffffffc, 0x9, {0x1, 0x3, 0x2, 0x5, 0x761, 0x7, 0x58d95c3d, 0x7, 0x7, 0x8000, 0x8, r9, 0xee01, 0x0, 0x400}}}, &(0x7f0000002d40)={0x158, 0x0, 0x8000000000000001, [{0x0, 0x0, 0x0, 0x5}, {0x2, 0x291, 0x3, 0x0, 'a-$'}, {0x6, 0x1, 0x1a, 0x5df9, 'bpf_lsm_inode_getsecurity\x00'}, {0x5, 0x4}, {0x3, 0x2, 0x7, 0x615d, ']F,[@%('}, {0x3, 0x4, 0x2, 0x5, '#*'}, {0x6, 0xc, 0x1, 0x200, '!'}, {0x2, 0x1, 0x3, 0xffff, '%[*'}, {0x2, 0x1, 0x6, 0x10001, '\xbb\xbb\xbb\xbb\xbb\xbb'}, {0x2, 0x9, 0x3, 0x3, '\\$&'}]}, &(0x7f0000004380)={0x280, 0x0, 0x7, [{{0x1, 0x2, 0x9b, 0xa, 0x40, 0x2b, {0x1, 0x0, 0xf5, 0x7, 0x8, 0x7, 0x5, 0x9, 0x1b, 0xa000, 0x4, r10, r12, 0x4, 0x10000}}, {0x4, 0x6, 0x0, 0x7f}}, {{0x1, 0x0, 0x9, 0x4, 0x9, 0x101, {0x0, 0x80, 0x80000001, 0x8, 0x7fffffffffffffff, 0xc14, 0x7, 0x2, 0x5, 0x1000, 0x7, r13, r16, 0x7, 0x3}}, {0x1, 0x8000000000000000, 0x0, 0x9}}, {{0x3, 0x1, 0x7, 0x3, 0x10000, 0xfff, {0x6, 0x3, 0x4, 0xffffffff, 0x5, 0x1, 0xcf, 0x5, 0x2, 0x3000, 0xf, r17, r18, 0xdda, 0x800}}, {0x0, 0x480, 0x1, 0x7, '\''}}, {{0x3, 0x0, 0x6, 0x6, 0xae90, 0x7fff, {0x5, 0x2, 0xffff, 0xb6, 0x9, 0x8, 0x200, 0x3, 0x6, 0x6000, 0xfffffff7, r19, r20, 0x4, 0x6}}, {0x0, 0x3, 0x6, 0xfffffffd, 'wlan0\x00'}}]}, &(0x7f0000004740)={0xa0, 0xfffffffffffffffe, 0x7fff, {{0x1, 0x2, 0x8, 0x8001, 0x9000, 0x0, {0x3, 0x4, 0x4283, 0x6, 0x7, 0x1, 0x4, 0x8000, 0x7f, 0x2000, 0xa, r22, r24, 0x2, 0x9}}}}, &(0x7f0000004800)={0x20, 0x0, 0xa, {0x8}}, &(0x7f0000005a40)={0x130, 0x0, 0x800, {0x10000000, 0x9, 0x0, '\x00', {0x4, 0xfffffff9, 0x8, 0xd, r25, r27, 0x4000, '\x00', 0xe, 0x1, 0x9, 0x4, {0x75, 0x10}, {0x0, 0x2a}, {0x4, 0x647}, {0x8, 0xfffffffa}, 0x4, 0x9, 0xf1, 0x7}}}}) r28 = socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$SEG6(&(0x7f0000005c40), r28) syz_init_net_socket$802154_dgram(0x24, 0x2, 0x0) r29 = syz_io_uring_complete(0x0) syz_io_uring_setup(0x19f7, &(0x7f0000005c80)={0x0, 0x9c5d, 0x2, 0x1, 0x253, 0x0, r15}, &(0x7f0000005d00)=0x0, &(0x7f0000005d40)=0x0) syz_io_uring_submit(r30, r31, &(0x7f0000005dc0)=@IORING_OP_TIMEOUT={0xb, 0x28, 0x0, 0x0, 0x3, &(0x7f0000005d80), 0x1, 0x10, 0x1}) r32 = syz_kvm_setup_syzos_vm$x86(r15, &(0x7f0000bff000/0x400000)=nil) syz_kvm_add_vcpu$x86(r32, &(0x7f0000005e80)={0x0, &(0x7f0000005e00)=[@enable_nested={0x12c, 0x18}, @uexit={0x0, 0x18, 0x4}, @nested_create_vm={0x12d, 0x18, 0x2}], 0x48}) syz_kvm_setup_cpu$ppc64(r14, r29, &(0x7f0000c37000/0x18000)=nil, &(0x7f0000006100)=[{0x0, &(0x7f0000005ec0)="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", 0x230}], 0x1, 0x1, &(0x7f0000006140)=[@featur2={0x1, 0x7}], 0x1) syz_kvm_setup_syzos_vm$x86(r29, &(0x7f0000c00000/0x400000)=nil) syz_memcpy_off$IO_URING_METADATA_FLAGS(r30, 0x114, &(0x7f0000006180), 0x0, 0x4) r33 = socketcall$auto_SYS_SOCKET(0x1, &(0x7f0000006240)=0x5) shmctl$auto_SHM_INFO(0x80000000, 0xe, &(0x7f0000006340)={{0xfffffffa, r11, r27, 0x3, 0xffff, 0xe6b, 0x7}, 0x0, 0x357b, 0x3, 0x8000000000000000, @raw=0x74, @inferred=r21, 0xc0b, 0x0, &(0x7f0000006280)="7010159f68d5ae907137fa70d286a18ba48348f88d1fa097cfe82bb9559e66c97b4ccf3acd9ce240544907f4538170e45e0c6de8adfb6ae94ed44b616a63737814f1894473d9519f2130e8a0e061c96e46a99a5316e46b6b461348bb03dddad70675bcda5921bdb5038cc7dcade7ba3e106cf315e2ad48818a62c7", &(0x7f0000006300)="1368248ad908eb425081239c0a10a514ef06f16fa38bc52b0f03b04d36f544263cb4a0a3ffbbafa80089cf8b02841df433c6b97da8fbfe285fccd05ad4"}) syz_mount_image$fuse(&(0x7f00000061c0), &(0x7f0000006200)='./file0\x00', 0x400, &(0x7f00000063c0)={{'fd', 0x3d, r33}, 0x2c, {'rootmode', 0x3d, 0x1000}, 0x2c, {'user_id', 0x3d, r23}, 0x2c, {'group_id', 0x3d, r34}, 0x2c, {[{@blksize={'blksize', 0x3d, 0x600}}, {}, {@blksize={'blksize', 0x3d, 0x1e00}}, {@max_read={'max_read', 0x3d, 0x100000001}}, {@default_permissions}, {@default_permissions}], [{@euid_lt={'euid<', r13}}, {@subj_user={'subj_user', 0x3d, ','}}, {@uid_lt={'uid<', r26}}, {@audit}, {@dont_measure}]}}, 0x0, 0x0, &(0x7f0000006540)="d3aa92") syz_open_dev$I2C(&(0x7f0000006580), 0x800, 0x40000) syz_open_procfs(r5, &(0x7f00000065c0)='cgroup\x00') syz_open_pts(r14, 0x201) syz_pidfd_open(r35, 0x0) r36 = pkey_alloc(0x0, 0x2) syz_pkey_set(r36, 0x0) syz_socket_connect_nvme_tcp() r37 = syz_usb_connect(0x3, 0x504, &(0x7f0000006600)={{0x12, 0x1, 0x310, 0xf, 0x36, 0x49, 0x8, 0x7d0, 0x4101, 0x4624, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x4f2, 0x3, 0x1, 0xa2, 0x40, 0x64, [{{0x9, 0x4, 0xc2, 0x7, 0xa, 0x50, 0xb3, 0x17, 0x7, [@hid_hid={0x9, 0x21, 0x3, 0xdf, 0x1, {0x22, 0x238}}, @uac_as={[@as_header={0x7, 0x24, 0x1, 0x2, 0x2, 0x2}, @format_type_i_continuous={0xb, 0x24, 0x2, 0x1, 0xde, 0x2, 0x0, 0x5, "", "116df7"}, @format_type_ii_discrete={0xa, 0x24, 0x2, 0x2, 0x8, 0x3, 0x7, ';'}, @format_type_i_continuous={0xa, 0x24, 0x2, 0x1, 0x4, 0x3, 0x1a, 0x9, "0f58"}, @format_type_ii_discrete={0xc, 0x24, 0x2, 0x2, 0xf270, 0x100, 0x7, "3129f9"}, @format_type_i_continuous={0xb, 0x24, 0x2, 0x1, 0x1, 0x3, 0xf9, 0xa3, "", "540613"}]}], [{{0x9, 0x5, 0x3, 0x38, 0x8, 0x1, 0xf9, 0x0, [@uac_iso={0x7, 0x25, 0x1, 0x1, 0x80, 0xffb0}, @generic={0x62, 0xe, "0bef679d6359d71a144a38a22834d12bd19c60b65829f44ebe6b1258a3a7a0cc60f30007c2c4d2a3cb88fb6beb580e628147114ffc6a4e39b19e718fc2cd0fa5af688649abe3db58d0707203283b6bdca05f49fb16b3618fcf4dd01cb2ef3509"}]}}, {{0x9, 0x5, 0x4, 0x0, 0x20, 0x1, 0x2, 0x5, [@generic={0x4e, 0xa, "aade99ccf348061ad92225e05a396a2ebe892ca65de9efa665821e34200c5caa943c9b1a3eb10828e13815e6120c4787a4d395b1e32a8ba1ffb991375879d517862de6e9cb6f723335dd156a"}]}}, {{0x9, 0x5, 0x3, 0xc, 0x3ff, 0x7, 0x0, 0x7f, [@generic={0x33, 0xe, "08b928c563b3fbc136beaf22bf46e0cf55e3f262485f30b28a3f9a3ec901ce8066c6788d469526c55bf0c2b3ca5005539a"}]}}, {{0x9, 0x5, 0xb, 0x4, 0x3ff, 0x3, 0x40, 0x7f, [@uac_iso={0x7, 0x25, 0x1, 0x87, 0x9, 0x4e}, @generic={0xcb, 0x11, "3b9dcacc679086d78f927ab634935a18813b23cceffea69b630aa97cc469907afac2a30327adeb901d9fb900ad82138098cbff5fed7fee2c7d701290ce4ad020a9da29675f8f051399879db57022b89c990120513aaa70c51847b128dd73bdea25cbb545c1ae8352024ca93cd7ea881cbb0920eedef072efe9da61b7bd77a3c085d712c142ca88c39f8edd17d6fb9a7ef8d0fad5a15a333e7ed05e7e9ae6e2a464c3159ab1a60e33afbf29a2f678c8c9e2f8f7a8d03d5582529b277b4be85583e5d81bc95749773042"}]}}, {{0x9, 0x5, 0x1, 0x3, 0x8, 0xe, 0x8, 0x7f, [@generic={0x72, 0x6, "6ee2410469b7a8b23e3255a554b63d5beb1b34b4871894e3df69e7558ce56cc83b83ae1ac9d1dec0882d040a7801a300c7eac26d78d2daff6bd47caca500d46c1b5a0b9e1ada0e7b606b6fd6b39db81c7c954c04d4ede980ea2ca80b113bdb4be747e1b6dc9281d77e85683aaac6534c"}]}}, {{0x9, 0x5, 0xb, 0xc, 0x5bf5a5d27b9960e1, 0x0, 0x1, 0x7}}, {{0x9, 0x5, 0x0, 0x0, 0x10, 0x5, 0x1, 0x77}}, {{0x9, 0x5, 0x5, 0x0, 0x208, 0x1b, 0x9, 0x7}}, {{0x9, 0x5, 0xf, 0x0, 0x40, 0x30, 0x5, 0x7, [@generic={0x50, 0x6, "011daf9ad3aea956d0184e8907d7b0b0a6aa9e921ac64d7a9e5a0ce5b5e0afb47868c9c4a76b6509835bf9ee45a7891eaad172a875634f7f36260124669b2d1b04c2fda38cc936921cb561245efa"}, @generic={0xb7, 0x21, "53542a37449c9d1a4e696a99527d5ad5bdad1c7e724128df50295aa0c61401ca6cd5cd356977f617e8b11448466269116af93b9dce05ded48792719f65bfa91da16b85ee1d6236084d8170f97c0a74f102663c645b0ee1b0fa7904e646438d8b16218604561c1abb98289e3ecba88e78f67361478774462a4d82749646452004b2482082e9c1b2f2972419f6f752e1bec5e1925fce215edb8265344da85b85164db3c633e4e431fec4c609664eac2b6b1f5f7bdc10"}]}}, {{0x9, 0x5, 0xc, 0x10, 0x10, 0x3, 0xf9, 0xff, [@generic={0xba, 0x23, "5c48a51f46fa078d84ce434e722a7fa4e7021ae9d9b76677366de6a10ab3e94e0969d7fc2a24536e1150d94672c5418b02951def7e20c7dfe0aa26adbf0bfd8f6dd351fa30990713537134af9c14fa84dee2b95af8e134542b5a1ad540329a97cbdd1a2422f13e6e03b49f7105a6bf4900ea723fbe14f21d182aeef2cf5162591f8bd38b85d45d723cef02132b5e45467dd8d430c378b8bf2d98403267010379de7bd04c800dfd5fae0c0ddac0b5cffde98ca400dce30ddd"}]}}]}}, {{0x9, 0x4, 0xfc, 0x4, 0x1, 0xff, 0x6, 0x39, 0xc, [], [{{0x9, 0x5, 0x0, 0x2, 0x400, 0x9, 0xdf, 0x2, [@uac_iso={0x7, 0x25, 0x1, 0x3, 0x8, 0x8000}]}}]}}, {{0x9, 0x4, 0x9d, 0x1, 0x3, 0x48, 0x48, 0x40, 0xa, [], [{{0x9, 0x5, 0x1, 0x10, 0x40, 0x2, 0xf1, 0xc, [@uac_iso={0x7, 0x25, 0x1, 0x81, 0x81, 0x5}]}}, {{0x9, 0x5, 0x7, 0x8, 0x40, 0x6, 0x0, 0x1, [@uac_iso={0x7, 0x25, 0x1, 0x2, 0x0, 0x10}, @generic={0x6, 0xe, "555dc78c"}]}}, {{0x9, 0x5, 0x5, 0x4, 0x200, 0x9, 0x40, 0x3}}]}}]}}]}}, &(0x7f0000006c00)={0xa, &(0x7f0000006b40)={0xa, 0x6, 0x200, 0x3b, 0x5, 0x9, 0x40, 0xa4}, 0x30, &(0x7f0000006b80)={0x5, 0xf, 0x30, 0x3, [@ptm_cap={0x3}, @ssp_cap={0x10, 0x10, 0xa, 0x1c, 0x1, 0x7ffffd3, 0xff00, 0x1fb, [0x0]}, @ssp_cap={0x18, 0x10, 0xa, 0xf, 0x3, 0x8, 0xff00, 0xd00, [0x0, 0xffc0cf, 0xff0000]}]}, 0x1, [{0x4, &(0x7f0000006bc0)=@lang_id={0x4, 0x3, 0x42f}}]}) r38 = syz_usb_connect_ath9k(0x3, 0x5a, &(0x7f0000006c40)={{0x12, 0x1, 0x200, 0xff, 0xff, 0xff, 0x40, 0xcf3, 0x9271, 0x108, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x48}}]}}, 0x0) r39 = syz_usb_connect$cdc_ecm(0x6, 0x8f, &(0x7f0000006cc0)={{0x12, 0x1, 0x310, 0x2, 0x0, 0x0, 0x8, 0x525, 0xa4a1, 0x40, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x7d, 0x1, 0x1, 0x6, 0x10, 0xb, [{{0x9, 0x4, 0x0, 0x4, 0x3, 0x2, 0x6, 0x0, 0xe, {{0xb, 0x24, 0x6, 0x0, 0x0, "d60132f149c6"}, {0x5, 0x24, 0x0, 0xbb8}, {0xd, 0x24, 0xf, 0x1, 0x7, 0x32a, 0x8, 0x1f}, [@obex={0x5, 0x24, 0x15, 0x101}, @mdlm={0x15, 0x24, 0x12, 0xfffc}, @network_terminal={0x7, 0x24, 0xa, 0xb, 0x9, 0xf, 0x2}, @call_mgmt={0x5, 0x24, 0x1, 0x1, 0xff}, @obex={0x5, 0x24, 0x15, 0x7ff}, @mbim_extended={0x8, 0x24, 0x1c, 0x5, 0x32, 0xa}]}, {[{{0x9, 0x5, 0x81, 0x3, 0x10, 0x7, 0x99, 0xb2}}], {{0x9, 0x5, 0x82, 0x2, 0x8, 0x1a, 0x7, 0xc4}}, {{0x9, 0x5, 0x3, 0x2, 0x3ff, 0xa6, 0x3, 0xa7}}}}}]}}]}}, &(0x7f0000007240)={0xa, &(0x7f0000006d80)={0xa, 0x6, 0x300, 0xfb, 0x3, 0xc, 0xff, 0x1}, 0x3c, &(0x7f0000006dc0)={0x5, 0xf, 0x3c, 0x6, [@ext_cap={0x7, 0x10, 0x2, 0x4, 0x7, 0x7, 0x56a9}, @wireless={0xb, 0x10, 0x1, 0x4, 0x42, 0x2, 0x3, 0x63ac, 0x9}, @ptm_cap={0x3}, @ext_cap={0x7, 0x10, 0x2, 0x1a, 0x7, 0xb, 0xd5}, @ssp_cap={0x10, 0x10, 0xa, 0x7f, 0x1, 0x12f, 0xf00, 0x1, [0x3fc0]}, @wireless={0xb, 0x10, 0x1, 0x8, 0x40, 0x7, 0x5, 0x2, 0x4}]}, 0x8, [{0x78, &(0x7f0000006e00)=@string={0x78, 0x3, "d7b4cadb72dce27ca7fb5209aad1b3585c8188f06126d3f18edd4cfa47addbd2a6715dd4adfa697f02bcb089ed2013268885f9c785bd7c5d4ee50de3cecd7a9d0b7b2e708226e8acb1e908b1f5c0c2a8132465e451fe49f15e60c8d3b9c84305d0dd8f634480050259cac3ce9cfc95092bd7e491866d"}}, {0x13, &(0x7f0000006e80)=@string={0x13, 0x3, "7d97d9eb8af2943b9985d30caaead89b5a"}}, {0x4, &(0x7f0000006ec0)=@lang_id={0x4, 0x3, 0x44a}}, {0x4, &(0x7f0000006f00)=@lang_id={0x4, 0x3, 0x1c09}}, {0x93, &(0x7f0000006f40)=@string={0x93, 0x3, "a7e5529238f796c9000c753f41b8183140f3914b76bf1c428ebe8d39c6f072b481ecad746274e7c538790d8c730d20517a2244a3781b115c07d40e9ec9c059f12d0d15f46ccf0cde26efa9d02a119e2cc5627c7f4241244d0843ef0018b12fc3cd467b5fdce58a6975d07ac352a42f1615178dcb0990aeca46461306816becdeb896bac765ded81ebd75ba4d97229b15a9"}}, {0xc2, &(0x7f0000007000)=@string={0xc2, 0x3, "d5a3d483012b31e49dfa33fd9593b4b668aa6f3f39301837d951daf256316819f5e71fa651bb06b2af65af27c7bf0fda1eaa1e32231b75f4d06d4923c76013e9d76a12202816ff8740a9fb4f2eceb27bd2e1ab1e7bd4ba7314b33d15e0fe65aa2b2e7ffb3236cb615493391feab3bfb828182fb60c4fd6fef422e106f384be633905ca1aaf83d9ddb2a2902e2a117de4e596145809b3b34b1ea432b412391ffb25ac255e7da11d994e7e9e98e0723a2757e580959dae6fa7ac2afb8dc5384b4a"}}, {0x5b, &(0x7f0000007100)=@string={0x5b, 0x3, "a794090968e46e97b7269fcae0f818bf9a99a50de60e5cda684721be6dc34820f912c338d7dc8ac50d93fc92a2ebde1a02652089726608a9e5877f4cacf91b9eec5b5eb2fc7fa7bb3d26607537f0e55d00793e7cf13bbb367e"}}, {0x90, &(0x7f0000007180)=@string={0x90, 0x3, "f9926b0dae8c462352105ed1c4d3ff50cc9ce982c397e92e576101317190c2327a2ba723844149e55f4b961d0f0defbc7edb70f5d61169074265acd81ceec5a15b66a5e5009236d062994af9afcbe04736aaad6bb55cb30e057c42d0df7481603c3c959b5e4e20f05382a9d9ad4c01680ae3597ef403dedf0b6c53fdc70d13ed116ef9ea902093f1c9f4af4cec25"}}]}) syz_usb_control_io(r39, &(0x7f0000007480)={0x2c, &(0x7f00000072c0)={0x40, 0x7, 0x1b, {0x1b, 0xa, "90730f1d9e91d2e1df577143e18c680eace6d6c12299246128"}}, &(0x7f0000007300)={0x0, 0x3, 0x44, @string={0x44, 0x3, "87d74dd46096809a8f4988ddaa95a532fbc22d8585d1592857ad0ab00c17a4fef3b229a02fe0e3649316bed9f44f588b1f0b47bc86705129440938bd68a29a84f829"}}, &(0x7f0000007380)={0x0, 0xf, 0x41, {0x5, 0xf, 0x41, 0x4, [@ssp_cap={0x20, 0x10, 0xa, 0x0, 0x5, 0xe85, 0xf00, 0x3, [0xff00a0, 0xff00f0, 0x30, 0xf, 0xdfbf]}, @ext_cap={0x7, 0x10, 0x2, 0x4, 0x4, 0x1, 0xff}, @wireless={0xb, 0x10, 0x1, 0x2, 0x1, 0x1, 0x3, 0x9, 0x8}, @ss_cap={0xa, 0x10, 0x3, 0x2, 0x4, 0x3, 0xb6, 0x5}]}}, &(0x7f0000007400)={0x20, 0x29, 0xf, {0xf, 0x29, 0xf, 0x4, 0x6, 0x32, "b2c84f72", "f5fb7b90"}}, &(0x7f0000007440)={0x20, 0x2a, 0xc, {0xc, 0x2a, 0x3a, 0x60, 0x4, 0x4, 0x7, 0x8001, 0x8}}}, &(0x7f0000007980)={0x84, &(0x7f00000074c0)={0x0, 0x0, 0xcf, "9f51c6ee54bfc1fc30d787499ab24493c2f30f78fe088e724ad29badb6c2406874a909d80e000075bbe92f6f4e8b3514481d12b869deb6f47f3b458369b7f024fcc02319e38cb7467c76b370d378ee0256daa3acea1f71be5e4c7d8a50037ba84e62445bbd990a26b44f60198d63505fbf005b96637abf5eb692a2ed0d582692e3f259387ed9d1955917dc53a246eb20e281e78386ed8734b81075e43b5b3e15ea60dbd497e07ad8847992dd87831b20d05263c108d70117e52170efac1777d3d376876358c2297172b2a023b52c05"}, &(0x7f00000075c0)={0x0, 0xa, 0x1, 0x2}, &(0x7f0000007600)={0x0, 0x8, 0x1, 0xfc}, &(0x7f0000007640)={0x20, 0x0, 0x4, {0x3, 0x1}}, &(0x7f0000007680)={0x20, 0x0, 0x4, {0x1d20, 0x20}}, &(0x7f00000076c0)={0x40, 0x7, 0x2, 0xfff8}, &(0x7f0000007700)={0x40, 0x9, 0x1, 0xd}, &(0x7f0000007740)={0x40, 0xb, 0x2, "2289"}, &(0x7f0000007780)={0x40, 0xf, 0x2, 0x2}, &(0x7f00000077c0)={0x40, 0x13, 0x6, @broadcast}, &(0x7f0000007800)={0x40, 0x17, 0x6, @random="eefa7a620165"}, &(0x7f0000007840)={0x40, 0x19, 0x2, "01d3"}, &(0x7f0000007880)={0x40, 0x1a, 0x2, 0x5}, &(0x7f00000078c0)={0x40, 0x1c, 0x1, 0xff}, &(0x7f0000007900)={0x40, 0x1e, 0x1, 0xf7}, &(0x7f0000007940)={0x40, 0x21, 0x1, 0xb}}) syz_usb_disconnect(r38) r40 = syz_usb_connect$hid(0x0, 0x3f, &(0x7f0000007a40)={{0x12, 0x1, 0x110, 0x0, 0x0, 0x0, 0xff, 0x46d, 0xc08d, 0x40, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x2d, 0x1, 0x1, 0x4, 0x50, 0x10, [{{0x9, 0x4, 0x0, 0xf9, 0x2, 0x3, 0x1, 0x2, 0x5, {0x9, 0x21, 0x81, 0x8, 0x1, {0x22, 0x6e7}}, {{{0x9, 0x5, 0x81, 0x3, 0x10, 0x8, 0xc, 0x6e}}, [{{0x9, 0x5, 0x2, 0x3, 0x200, 0x8, 0x1, 0x50}}]}}}]}}]}}, &(0x7f0000007f40)={0xa, &(0x7f0000007a80)={0xa, 0x6, 0x310, 0x48, 0xa5, 0xca, 0x8, 0x10}, 0x30, &(0x7f0000007ac0)={0x5, 0xf, 0x30, 0x4, [@ss_cap={0xa, 0x10, 0x3, 0x0, 0x5, 0x0, 0x1, 0x8a}, @ssp_cap={0x10, 0x10, 0xa, 0xa, 0x1, 0x0, 0xf00f, 0x7, [0x3f00]}, @ss_cap={0xa, 0x10, 0x3, 0x0, 0x4, 0x4, 0x8, 0xfff8}, @ext_cap={0x7, 0x10, 0x2, 0x4, 0x0, 0x5, 0x8001}]}, 0xa, [{0x4, &(0x7f0000007b00)=@lang_id={0x4, 0x3, 0x437}}, {0xf2, &(0x7f0000007b40)=@string={0xf2, 0x3, "f0019969b38f6afabd6c105967f2b79c116bf52e6af549271939cbeacdab5c8503cee7d1a67a62ea491b6b2f8647133f15b8e9707e4a77577e8afd8a1284459b66c7be93c43e84efcfc2f73e93d295998cc2f495ae5b1a3d5e12ef6e64664a3b5c79528b0119f78b0a61d807232537eb3d9c09add93823e6f878bbba00898be1017faf4e5f14d387401c45645954c04f8c83f9e5f0ae9913d9ccb88e7516d80f8e21c3b610429258169248a016de144abce7905f4dd3bf2698e9f3a5febc7c10ef4ed298e5f8facbb3c9344bb3ab33568a0f64f428d60dabe2bfe795df0603cdf76f606241fdd89c8ff9fe55ee2395fd"}}, {0x4, &(0x7f0000007c40)=@lang_id={0x4, 0x3, 0x2c0a}}, {0x89, &(0x7f0000007c80)=@string={0x89, 0x3, "05b7615d7a2ba83f5916d585e5290669a0c243e1c65f43d6c7680767f0da6805ce3566413a20f4b8664b77799c5c6061d9d19075d2f89b880caa622d3aa9108e5222e55336bf7850d2f7990a1314b0be81d606f8a99a6705e0ac44872072366abaea5f97d7ca08ed1eb25b707c92991e5537f945aa401d761349b628d6c928c1cfe5b09fd13272"}}, {0xb8, &(0x7f0000007d40)=@string={0xb8, 0x3, "f04a78648bb13ad6c53b44e42ed2f24d3205bf5161674ff375ecfa9f710dd4d52e29779bc4c1d41faf1b2e02fa2cb4ca6c449681b5c88b3775f82babde2258f8a001d811f8b64ce0753b228c161809770f39160ba4ea92490a38f82c3f18b44c81a148c48bbc4f716e64a85a985f3570d6132a4ac6e97f0ae7296582879c5d4e277be3d5867dc3df2606879bd5281225a34f3feba436eec16ddfbe611574be645a71c5e8be494e27918333f2431aeff2e9fed0608428"}}, {0x4, &(0x7f0000007e00)=@lang_id={0x4, 0x3, 0x40f}}, {0x4, &(0x7f0000007e40)=@lang_id={0x4, 0x3, 0x860}}, {0x4, &(0x7f0000007e80)=@lang_id={0x4, 0x3, 0xf4ef}}, {0x4, &(0x7f0000007ec0)=@lang_id={0x4, 0x3, 0x3001}}, {0x4, &(0x7f0000007f00)=@lang_id={0x4, 0x3, 0x2009}}]}) syz_usb_ep_read(r40, 0x0, 0x1000, &(0x7f0000008000)=""/4096) syz_usb_ep_write(r37, 0x6, 0x94, &(0x7f0000009000)="57bba2f04f3945da7a47037710f6d53d8dfad8a96c57e11cf5fcfee434fce88038e1904ecc2712334118e5002b0c107c286eb90314233fd5ce1d9ea5da0076741102d88517463ff118bd931282412de1f5ea71eb2bec91b82b7f7b64f8aae1d58e32de1deeb1c8264d59d639a1945f0090275e6bdbf18e86685ccb60a5fec9c7cebac5d05b5c84e6116f89d443fad3ce74d82080") syz_usbip_server_init(0x5) csource_test.go:158: failed to build program: // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifndef __NR_clone3 #define __NR_clone3 435 #endif #ifndef __NR_io_uring_setup #define __NR_io_uring_setup 425 #endif #ifndef __NR_memfd_create #define __NR_memfd_create 319 #endif #ifndef __NR_pidfd_open #define __NR_pidfd_open 434 #endif #ifndef __NR_pkey_alloc #define __NR_pkey_alloc 330 #endif #ifndef __NR_statx #define __NR_statx 332 #endif static unsigned long long procid; static void sleep_ms(uint64_t ms) { usleep(ms * 1000); } static uint64_t current_time_ms(void) { struct timespec ts; if (clock_gettime(CLOCK_MONOTONIC, &ts)) exit(1); return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000; } static void use_temporary_dir(void) { char tmpdir_template[] = "./syzkaller.XXXXXX"; char* tmpdir = mkdtemp(tmpdir_template); if (!tmpdir) exit(1); if (chmod(tmpdir, 0777)) exit(1); if (chdir(tmpdir)) exit(1); } static void thread_start(void* (*fn)(void*), void* arg) { pthread_t th; pthread_attr_t attr; pthread_attr_init(&attr); pthread_attr_setstacksize(&attr, 128 << 10); int i = 0; for (; i < 100; i++) { if (pthread_create(&th, &attr, fn, arg) == 0) { pthread_attr_destroy(&attr); return; } if (errno == EAGAIN) { usleep(50); continue; } break; } exit(1); } #define BITMASK(bf_off,bf_len) (((1ull << (bf_len)) - 1) << (bf_off)) #define STORE_BY_BITMASK(type,htobe,addr,val,bf_off,bf_len) *(type*)(addr) = htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) | (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len)))) typedef struct { int state; } event_t; static void event_init(event_t* ev) { ev->state = 0; } static void event_reset(event_t* ev) { ev->state = 0; } static void event_set(event_t* ev) { if (ev->state) exit(1); __atomic_store_n(&ev->state, 1, __ATOMIC_RELEASE); syscall(SYS_futex, &ev->state, FUTEX_WAKE | FUTEX_PRIVATE_FLAG, 1000000); } static void event_wait(event_t* ev) { while (!__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE)) syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, 0); } static int event_isset(event_t* ev) { return __atomic_load_n(&ev->state, __ATOMIC_ACQUIRE); } static int event_timedwait(event_t* ev, uint64_t timeout) { uint64_t start = current_time_ms(); uint64_t now = start; for (;;) { uint64_t remain = timeout - (now - start); struct timespec ts; ts.tv_sec = remain / 1000; ts.tv_nsec = (remain % 1000) * 1000 * 1000; syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, &ts); if (__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE)) return 1; now = current_time_ms(); if (now - start > timeout) return 0; } } static bool write_file(const char* file, const char* what, ...) { char buf[1024]; va_list args; va_start(args, what); vsnprintf(buf, sizeof(buf), what, args); va_end(args); buf[sizeof(buf) - 1] = 0; int len = strlen(buf); int fd = open(file, O_WRONLY | O_CLOEXEC); if (fd == -1) return false; if (write(fd, buf, len) != len) { int err = errno; close(fd); errno = err; return false; } close(fd); return true; } struct nlmsg { char* pos; int nesting; struct nlattr* nested[8]; char buf[4096]; }; static void netlink_init(struct nlmsg* nlmsg, int typ, int flags, const void* data, int size) { memset(nlmsg, 0, sizeof(*nlmsg)); struct nlmsghdr* hdr = (struct nlmsghdr*)nlmsg->buf; hdr->nlmsg_type = typ; hdr->nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK | flags; memcpy(hdr + 1, data, size); nlmsg->pos = (char*)(hdr + 1) + NLMSG_ALIGN(size); } static void netlink_attr(struct nlmsg* nlmsg, int typ, const void* data, int size) { struct nlattr* attr = (struct nlattr*)nlmsg->pos; attr->nla_len = sizeof(*attr) + size; attr->nla_type = typ; if (size > 0) memcpy(attr + 1, data, size); nlmsg->pos += NLMSG_ALIGN(attr->nla_len); } static int netlink_send_ext(struct nlmsg* nlmsg, int sock, uint16_t reply_type, int* reply_len, bool dofail) { if (nlmsg->pos > nlmsg->buf + sizeof(nlmsg->buf) || nlmsg->nesting) exit(1); struct nlmsghdr* hdr = (struct nlmsghdr*)nlmsg->buf; hdr->nlmsg_len = nlmsg->pos - nlmsg->buf; struct sockaddr_nl addr; memset(&addr, 0, sizeof(addr)); addr.nl_family = AF_NETLINK; ssize_t n = sendto(sock, nlmsg->buf, hdr->nlmsg_len, 0, (struct sockaddr*)&addr, sizeof(addr)); if (n != (ssize_t)hdr->nlmsg_len) { if (dofail) exit(1); return -1; } n = recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0); if (reply_len) *reply_len = 0; if (n < 0) { if (dofail) exit(1); return -1; } if (n < (ssize_t)sizeof(struct nlmsghdr)) { errno = EINVAL; if (dofail) exit(1); return -1; } if (hdr->nlmsg_type == NLMSG_DONE) return 0; if (reply_len && hdr->nlmsg_type == reply_type) { *reply_len = n; return 0; } if (n < (ssize_t)(sizeof(struct nlmsghdr) + sizeof(struct nlmsgerr))) { errno = EINVAL; if (dofail) exit(1); return -1; } if (hdr->nlmsg_type != NLMSG_ERROR) { errno = EINVAL; if (dofail) exit(1); return -1; } errno = -((struct nlmsgerr*)(hdr + 1))->error; return -errno; } static int netlink_query_family_id(struct nlmsg* nlmsg, int sock, const char* family_name, bool dofail) { struct genlmsghdr genlhdr; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = CTRL_CMD_GETFAMILY; netlink_init(nlmsg, GENL_ID_CTRL, 0, &genlhdr, sizeof(genlhdr)); netlink_attr(nlmsg, CTRL_ATTR_FAMILY_NAME, family_name, strnlen(family_name, GENL_NAMSIZ - 1) + 1); int n = 0; int err = netlink_send_ext(nlmsg, sock, GENL_ID_CTRL, &n, dofail); if (err < 0) { return -1; } uint16_t id = 0; struct nlattr* attr = (struct nlattr*)(nlmsg->buf + NLMSG_HDRLEN + NLMSG_ALIGN(sizeof(genlhdr))); for (; (char*)attr < nlmsg->buf + n; attr = (struct nlattr*)((char*)attr + NLMSG_ALIGN(attr->nla_len))) { if (attr->nla_type == CTRL_ATTR_FAMILY_ID) { id = *(uint16_t*)(attr + 1); break; } } if (!id) { errno = EINVAL; return -1; } recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0); return id; } const int kInitNetNsFd = 201; #define WIFI_INITIAL_DEVICE_COUNT 2 #define WIFI_MAC_BASE { 0x08, 0x02, 0x11, 0x00, 0x00, 0x00} #define WIFI_IBSS_BSSID { 0x50, 0x50, 0x50, 0x50, 0x50, 0x50} #define WIFI_IBSS_SSID { 0x10, 0x10, 0x10, 0x10, 0x10, 0x10} #define WIFI_DEFAULT_FREQUENCY 2412 #define WIFI_DEFAULT_SIGNAL 0 #define WIFI_DEFAULT_RX_RATE 1 #define HWSIM_CMD_REGISTER 1 #define HWSIM_CMD_FRAME 2 #define HWSIM_CMD_NEW_RADIO 4 #define HWSIM_ATTR_SUPPORT_P2P_DEVICE 14 #define HWSIM_ATTR_PERM_ADDR 22 #define IF_OPER_UP 6 struct join_ibss_props { int wiphy_freq; bool wiphy_freq_fixed; uint8_t* mac; uint8_t* ssid; int ssid_len; }; static int set_interface_state(const char* interface_name, int on) { struct ifreq ifr; int sock = socket(AF_INET, SOCK_DGRAM, 0); if (sock < 0) { return -1; } memset(&ifr, 0, sizeof(ifr)); strcpy(ifr.ifr_name, interface_name); int ret = ioctl(sock, SIOCGIFFLAGS, &ifr); if (ret < 0) { close(sock); return -1; } if (on) ifr.ifr_flags |= IFF_UP; else ifr.ifr_flags &= ~IFF_UP; ret = ioctl(sock, SIOCSIFFLAGS, &ifr); close(sock); if (ret < 0) { return -1; } return 0; } static int nl80211_set_interface(struct nlmsg* nlmsg, int sock, int nl80211_family, uint32_t ifindex, uint32_t iftype, bool dofail) { struct genlmsghdr genlhdr; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = NL80211_CMD_SET_INTERFACE; netlink_init(nlmsg, nl80211_family, 0, &genlhdr, sizeof(genlhdr)); netlink_attr(nlmsg, NL80211_ATTR_IFINDEX, &ifindex, sizeof(ifindex)); netlink_attr(nlmsg, NL80211_ATTR_IFTYPE, &iftype, sizeof(iftype)); int err = netlink_send_ext(nlmsg, sock, 0, NULL, dofail); if (err < 0) { } return err; } static int nl80211_join_ibss(struct nlmsg* nlmsg, int sock, int nl80211_family, uint32_t ifindex, struct join_ibss_props* props, bool dofail) { struct genlmsghdr genlhdr; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = NL80211_CMD_JOIN_IBSS; netlink_init(nlmsg, nl80211_family, 0, &genlhdr, sizeof(genlhdr)); netlink_attr(nlmsg, NL80211_ATTR_IFINDEX, &ifindex, sizeof(ifindex)); netlink_attr(nlmsg, NL80211_ATTR_SSID, props->ssid, props->ssid_len); netlink_attr(nlmsg, NL80211_ATTR_WIPHY_FREQ, &(props->wiphy_freq), sizeof(props->wiphy_freq)); if (props->mac) netlink_attr(nlmsg, NL80211_ATTR_MAC, props->mac, ETH_ALEN); if (props->wiphy_freq_fixed) netlink_attr(nlmsg, NL80211_ATTR_FREQ_FIXED, NULL, 0); int err = netlink_send_ext(nlmsg, sock, 0, NULL, dofail); if (err < 0) { } return err; } static int get_ifla_operstate(struct nlmsg* nlmsg, int ifindex, bool dofail) { struct ifinfomsg info; memset(&info, 0, sizeof(info)); info.ifi_family = AF_UNSPEC; info.ifi_index = ifindex; int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE); if (sock == -1) { return -1; } netlink_init(nlmsg, RTM_GETLINK, 0, &info, sizeof(info)); int n; int err = netlink_send_ext(nlmsg, sock, RTM_NEWLINK, &n, dofail); close(sock); if (err) { return -1; } struct rtattr* attr = IFLA_RTA(NLMSG_DATA(nlmsg->buf)); for (; RTA_OK(attr, n); attr = RTA_NEXT(attr, n)) { if (attr->rta_type == IFLA_OPERSTATE) return *((int32_t*)RTA_DATA(attr)); } return -1; } static int await_ifla_operstate(struct nlmsg* nlmsg, char* interface, int operstate, bool dofail) { int ifindex = if_nametoindex(interface); while (true) { usleep(1000); int ret = get_ifla_operstate(nlmsg, ifindex, dofail); if (ret < 0) return ret; if (ret == operstate) return 0; } return 0; } static int nl80211_setup_ibss_interface(struct nlmsg* nlmsg, int sock, int nl80211_family_id, char* interface, struct join_ibss_props* ibss_props, bool dofail) { int ifindex = if_nametoindex(interface); if (ifindex == 0) { return -1; } int ret = nl80211_set_interface(nlmsg, sock, nl80211_family_id, ifindex, NL80211_IFTYPE_ADHOC, dofail); if (ret < 0) { return -1; } ret = set_interface_state(interface, 1); if (ret < 0) { return -1; } ret = nl80211_join_ibss(nlmsg, sock, nl80211_family_id, ifindex, ibss_props, dofail); if (ret < 0) { return -1; } return 0; } #define SIZEOF_IO_URING_SQE 64 #define SIZEOF_IO_URING_CQE 16 #define SQ_HEAD_OFFSET 0 #define SQ_TAIL_OFFSET 64 #define SQ_RING_MASK_OFFSET 256 #define SQ_RING_ENTRIES_OFFSET 264 #define SQ_FLAGS_OFFSET 276 #define SQ_DROPPED_OFFSET 272 #define CQ_HEAD_OFFSET 128 #define CQ_TAIL_OFFSET 192 #define CQ_RING_MASK_OFFSET 260 #define CQ_RING_ENTRIES_OFFSET 268 #define CQ_RING_OVERFLOW_OFFSET 284 #define CQ_FLAGS_OFFSET 280 #define CQ_CQES_OFFSET 320 struct io_uring_cqe { uint64_t user_data; uint32_t res; uint32_t flags; }; static long syz_io_uring_complete(volatile long a0) { char* ring_ptr = (char*)a0; uint32_t cq_ring_mask = *(uint32_t*)(ring_ptr + CQ_RING_MASK_OFFSET); uint32_t* cq_head_ptr = (uint32_t*)(ring_ptr + CQ_HEAD_OFFSET); uint32_t cq_head = *cq_head_ptr & cq_ring_mask; uint32_t cq_head_next = *cq_head_ptr + 1; char* cqe_src = ring_ptr + CQ_CQES_OFFSET + cq_head * SIZEOF_IO_URING_CQE; struct io_uring_cqe cqe; memcpy(&cqe, cqe_src, sizeof(cqe)); __atomic_store_n(cq_head_ptr, cq_head_next, __ATOMIC_RELEASE); return (cqe.user_data == 0x12345 || cqe.user_data == 0x23456) ? (long)cqe.res : (long)-1; } struct io_sqring_offsets { uint32_t head; uint32_t tail; uint32_t ring_mask; uint32_t ring_entries; uint32_t flags; uint32_t dropped; uint32_t array; uint32_t resv1; uint64_t resv2; }; struct io_cqring_offsets { uint32_t head; uint32_t tail; uint32_t ring_mask; uint32_t ring_entries; uint32_t overflow; uint32_t cqes; uint64_t resv[2]; }; struct io_uring_params { uint32_t sq_entries; uint32_t cq_entries; uint32_t flags; uint32_t sq_thread_cpu; uint32_t sq_thread_idle; uint32_t features; uint32_t resv[4]; struct io_sqring_offsets sq_off; struct io_cqring_offsets cq_off; }; #define IORING_OFF_SQ_RING 0 #define IORING_OFF_SQES 0x10000000ULL #define IORING_SETUP_SQE128 (1U << 10) #define IORING_SETUP_CQE32 (1U << 11) static long syz_io_uring_setup(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { uint32_t entries = (uint32_t)a0; struct io_uring_params* setup_params = (struct io_uring_params*)a1; void** ring_ptr_out = (void**)a2; void** sqes_ptr_out = (void**)a3; setup_params->flags &= ~(IORING_SETUP_CQE32 | IORING_SETUP_SQE128); uint32_t fd_io_uring = syscall(__NR_io_uring_setup, entries, setup_params); uint32_t sq_ring_sz = setup_params->sq_off.array + setup_params->sq_entries * sizeof(uint32_t); uint32_t cq_ring_sz = setup_params->cq_off.cqes + setup_params->cq_entries * SIZEOF_IO_URING_CQE; uint32_t ring_sz = sq_ring_sz > cq_ring_sz ? sq_ring_sz : cq_ring_sz; *ring_ptr_out = mmap(0, ring_sz, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_POPULATE, fd_io_uring, IORING_OFF_SQ_RING); uint32_t sqes_sz = setup_params->sq_entries * SIZEOF_IO_URING_SQE; *sqes_ptr_out = mmap(0, sqes_sz, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_POPULATE, fd_io_uring, IORING_OFF_SQES); uint32_t* array = (uint32_t*)((uintptr_t)*ring_ptr_out + setup_params->sq_off.array); for (uint32_t index = 0; index < entries; index++) array[index] = index; return fd_io_uring; } static long syz_io_uring_submit(volatile long a0, volatile long a1, volatile long a2) { char* ring_ptr = (char*)a0; char* sqes_ptr = (char*)a1; char* sqe = (char*)a2; uint32_t sq_ring_mask = *(uint32_t*)(ring_ptr + SQ_RING_MASK_OFFSET); uint32_t* sq_tail_ptr = (uint32_t*)(ring_ptr + SQ_TAIL_OFFSET); uint32_t sq_tail = *sq_tail_ptr & sq_ring_mask; char* sqe_dest = sqes_ptr + sq_tail * SIZEOF_IO_URING_SQE; memcpy(sqe_dest, sqe, SIZEOF_IO_URING_SQE); uint32_t sq_tail_next = *sq_tail_ptr + 1; __atomic_store_n(sq_tail_ptr, sq_tail_next, __ATOMIC_RELEASE); return 0; } #define VHCI_HC_PORTS 8 #define VHCI_PORTS (VHCI_HC_PORTS * 2) static long syz_usbip_server_init(volatile long a0) { static int port_alloc[2]; int speed = (int)a0; bool usb3 = (speed == USB_SPEED_SUPER); int socket_pair[2]; if (socketpair(AF_UNIX, SOCK_STREAM, 0, socket_pair)) { return -1; } int client_fd = socket_pair[0]; int server_fd = socket_pair[1]; int available_port_num = __atomic_fetch_add(&port_alloc[usb3], 1, __ATOMIC_RELAXED); if (available_port_num > VHCI_HC_PORTS) { return -1; } int port_num = procid * VHCI_PORTS + usb3 * VHCI_HC_PORTS + available_port_num; char buffer[100]; sprintf(buffer, "%d %d %s %d", port_num, client_fd, "0", speed); write_file("/sys/devices/platform/vhci_hcd.0/attach", buffer); return server_fd; } #define BTF_MAGIC 0xeB9F struct btf_header { __u16 magic; __u8 version; __u8 flags; __u32 hdr_len; __u32 type_off; __u32 type_len; __u32 str_off; __u32 str_len; }; #define BTF_INFO_KIND(info) (((info) >> 24) & 0x0f) #define BTF_INFO_VLEN(info) ((info) & 0xffff) #define BTF_KIND_INT 1 #define BTF_KIND_ARRAY 3 #define BTF_KIND_STRUCT 4 #define BTF_KIND_UNION 5 #define BTF_KIND_ENUM 6 #define BTF_KIND_FUNC_PROTO 13 #define BTF_KIND_VAR 14 #define BTF_KIND_DATASEC 15 struct btf_type { __u32 name_off; __u32 info; union { __u32 size; __u32 type; }; }; struct btf_enum { __u32 name_off; __s32 val; }; struct btf_array { __u32 type; __u32 index_type; __u32 nelems; }; struct btf_member { __u32 name_off; __u32 type; __u32 offset; }; struct btf_param { __u32 name_off; __u32 type; }; struct btf_var { __u32 linkage; }; struct btf_var_secinfo { __u32 type; __u32 offset; __u32 size; }; #define VMLINUX_MAX_SUPPORT_SIZE (10 * 1024 * 1024) static char* read_btf_vmlinux() { static bool is_read = false; static char buf[VMLINUX_MAX_SUPPORT_SIZE]; if (is_read) return buf; int fd = open("/sys/kernel/btf/vmlinux", O_RDONLY); if (fd < 0) return NULL; unsigned long bytes_read = 0; for (;;) { ssize_t ret = read(fd, buf + bytes_read, VMLINUX_MAX_SUPPORT_SIZE - bytes_read); if (ret < 0 || bytes_read + ret == VMLINUX_MAX_SUPPORT_SIZE) return NULL; if (ret == 0) break; bytes_read += ret; } is_read = true; return buf; } static long syz_btf_id_by_name(volatile long a0) { char* target = (char*)a0; char* vmlinux = read_btf_vmlinux(); if (vmlinux == NULL) return -1; struct btf_header* btf_header = (struct btf_header*)vmlinux; if (btf_header->magic != BTF_MAGIC) return -1; char* btf_type_sec = vmlinux + btf_header->hdr_len + btf_header->type_off; char* btf_str_sec = vmlinux + btf_header->hdr_len + btf_header->str_off; unsigned int bytes_parsed = 0; long idx = 1; while (bytes_parsed < btf_header->type_len) { struct btf_type* btf_type = (struct btf_type*)(btf_type_sec + bytes_parsed); uint32_t kind = BTF_INFO_KIND(btf_type->info); uint32_t vlen = BTF_INFO_VLEN(btf_type->info); char* name = btf_str_sec + btf_type->name_off; if (strcmp(name, target) == 0) return idx; size_t skip; switch (kind) { case BTF_KIND_INT: skip = sizeof(uint32_t); break; case BTF_KIND_ENUM: skip = sizeof(struct btf_enum) * vlen; break; case BTF_KIND_ARRAY: skip = sizeof(struct btf_array); break; case BTF_KIND_STRUCT: case BTF_KIND_UNION: skip = sizeof(struct btf_member) * vlen; break; case BTF_KIND_FUNC_PROTO: skip = sizeof(struct btf_param) * vlen; break; case BTF_KIND_VAR: skip = sizeof(struct btf_var); break; case BTF_KIND_DATASEC: skip = sizeof(struct btf_var_secinfo) * vlen; break; default: skip = 0; } bytes_parsed += sizeof(struct btf_type) + skip; idx++; } return -1; } static long syz_memcpy_off(volatile long a0, volatile long a1, volatile long a2, volatile long a3, volatile long a4) { char* dest = (char*)a0; uint32_t dest_off = (uint32_t)a1; char* src = (char*)a2; uint32_t src_off = (uint32_t)a3; size_t n = (size_t)a4; return (long)memcpy(dest + dest_off, src + src_off, n); } static long syz_create_resource(volatile long val) { return val; } #define MAX_FDS 30 #define USB_MAX_IFACE_NUM 4 #define USB_MAX_EP_NUM 32 #define USB_MAX_FDS 6 struct usb_endpoint_index { struct usb_endpoint_descriptor desc; int handle; }; struct usb_iface_index { struct usb_interface_descriptor* iface; uint8_t bInterfaceNumber; uint8_t bAlternateSetting; uint8_t bInterfaceClass; struct usb_endpoint_index eps[USB_MAX_EP_NUM]; int eps_num; }; struct usb_device_index { struct usb_device_descriptor* dev; struct usb_config_descriptor* config; uint8_t bDeviceClass; uint8_t bMaxPower; int config_length; struct usb_iface_index ifaces[USB_MAX_IFACE_NUM]; int ifaces_num; int iface_cur; }; struct usb_info { int fd; struct usb_device_index index; }; static struct usb_info usb_devices[USB_MAX_FDS]; static struct usb_device_index* lookup_usb_index(int fd) { for (int i = 0; i < USB_MAX_FDS; i++) { if (__atomic_load_n(&usb_devices[i].fd, __ATOMIC_ACQUIRE) == fd) return &usb_devices[i].index; } return NULL; } static int usb_devices_num; static bool parse_usb_descriptor(const char* buffer, size_t length, struct usb_device_index* index) { if (length < sizeof(*index->dev) + sizeof(*index->config)) return false; memset(index, 0, sizeof(*index)); index->dev = (struct usb_device_descriptor*)buffer; index->config = (struct usb_config_descriptor*)(buffer + sizeof(*index->dev)); index->bDeviceClass = index->dev->bDeviceClass; index->bMaxPower = index->config->bMaxPower; index->config_length = length - sizeof(*index->dev); index->iface_cur = -1; size_t offset = 0; while (true) { if (offset + 1 >= length) break; uint8_t desc_length = buffer[offset]; uint8_t desc_type = buffer[offset + 1]; if (desc_length <= 2) break; if (offset + desc_length > length) break; if (desc_type == USB_DT_INTERFACE && index->ifaces_num < USB_MAX_IFACE_NUM) { struct usb_interface_descriptor* iface = (struct usb_interface_descriptor*)(buffer + offset); index->ifaces[index->ifaces_num].iface = iface; index->ifaces[index->ifaces_num].bInterfaceNumber = iface->bInterfaceNumber; index->ifaces[index->ifaces_num].bAlternateSetting = iface->bAlternateSetting; index->ifaces[index->ifaces_num].bInterfaceClass = iface->bInterfaceClass; index->ifaces_num++; } if (desc_type == USB_DT_ENDPOINT && index->ifaces_num > 0) { struct usb_iface_index* iface = &index->ifaces[index->ifaces_num - 1]; if (iface->eps_num < USB_MAX_EP_NUM) { memcpy(&iface->eps[iface->eps_num].desc, buffer + offset, sizeof(iface->eps[iface->eps_num].desc)); iface->eps_num++; } } offset += desc_length; } return true; } static struct usb_device_index* add_usb_index(int fd, const char* dev, size_t dev_len) { int i = __atomic_fetch_add(&usb_devices_num, 1, __ATOMIC_RELAXED); if (i >= USB_MAX_FDS) return NULL; if (!parse_usb_descriptor(dev, dev_len, &usb_devices[i].index)) return NULL; __atomic_store_n(&usb_devices[i].fd, fd, __ATOMIC_RELEASE); return &usb_devices[i].index; } struct vusb_connect_string_descriptor { uint32_t len; char* str; } __attribute__((packed)); struct vusb_connect_descriptors { uint32_t qual_len; char* qual; uint32_t bos_len; char* bos; uint32_t strs_len; struct vusb_connect_string_descriptor strs[0]; } __attribute__((packed)); static const char default_string[] = { 8, USB_DT_STRING, 's', 0, 'y', 0, 'z', 0 }; static const char default_lang_id[] = { 4, USB_DT_STRING, 0x09, 0x04 }; static bool lookup_connect_response_in(int fd, const struct vusb_connect_descriptors* descs, const struct usb_ctrlrequest* ctrl, struct usb_qualifier_descriptor* qual, char** response_data, uint32_t* response_length) { struct usb_device_index* index = lookup_usb_index(fd); uint8_t str_idx; if (!index) return false; switch (ctrl->bRequestType & USB_TYPE_MASK) { case USB_TYPE_STANDARD: switch (ctrl->bRequest) { case USB_REQ_GET_DESCRIPTOR: switch (ctrl->wValue >> 8) { case USB_DT_DEVICE: *response_data = (char*)index->dev; *response_length = sizeof(*index->dev); return true; case USB_DT_CONFIG: *response_data = (char*)index->config; *response_length = index->config_length; return true; case USB_DT_STRING: str_idx = (uint8_t)ctrl->wValue; if (descs && str_idx < descs->strs_len) { *response_data = descs->strs[str_idx].str; *response_length = descs->strs[str_idx].len; return true; } if (str_idx == 0) { *response_data = (char*)&default_lang_id[0]; *response_length = default_lang_id[0]; return true; } *response_data = (char*)&default_string[0]; *response_length = default_string[0]; return true; case USB_DT_BOS: *response_data = descs->bos; *response_length = descs->bos_len; return true; case USB_DT_DEVICE_QUALIFIER: if (!descs->qual) { qual->bLength = sizeof(*qual); qual->bDescriptorType = USB_DT_DEVICE_QUALIFIER; qual->bcdUSB = index->dev->bcdUSB; qual->bDeviceClass = index->dev->bDeviceClass; qual->bDeviceSubClass = index->dev->bDeviceSubClass; qual->bDeviceProtocol = index->dev->bDeviceProtocol; qual->bMaxPacketSize0 = index->dev->bMaxPacketSize0; qual->bNumConfigurations = index->dev->bNumConfigurations; qual->bRESERVED = 0; *response_data = (char*)qual; *response_length = sizeof(*qual); return true; } *response_data = descs->qual; *response_length = descs->qual_len; return true; default: break; } break; default: break; } break; default: break; } return false; } typedef bool (*lookup_connect_out_response_t)(int fd, const struct vusb_connect_descriptors* descs, const struct usb_ctrlrequest* ctrl, bool* done); static bool lookup_connect_response_out_generic(int fd, const struct vusb_connect_descriptors* descs, const struct usb_ctrlrequest* ctrl, bool* done) { switch (ctrl->bRequestType & USB_TYPE_MASK) { case USB_TYPE_STANDARD: switch (ctrl->bRequest) { case USB_REQ_SET_CONFIGURATION: *done = true; return true; default: break; } break; } return false; } #define ATH9K_FIRMWARE_DOWNLOAD 0x30 #define ATH9K_FIRMWARE_DOWNLOAD_COMP 0x31 static bool lookup_connect_response_out_ath9k(int fd, const struct vusb_connect_descriptors* descs, const struct usb_ctrlrequest* ctrl, bool* done) { switch (ctrl->bRequestType & USB_TYPE_MASK) { case USB_TYPE_STANDARD: switch (ctrl->bRequest) { case USB_REQ_SET_CONFIGURATION: return true; default: break; } break; case USB_TYPE_VENDOR: switch (ctrl->bRequest) { case ATH9K_FIRMWARE_DOWNLOAD: return true; case ATH9K_FIRMWARE_DOWNLOAD_COMP: *done = true; return true; default: break; } break; } return false; } struct vusb_descriptor { uint8_t req_type; uint8_t desc_type; uint32_t len; char data[0]; } __attribute__((packed)); struct vusb_descriptors { uint32_t len; struct vusb_descriptor* generic; struct vusb_descriptor* descs[0]; } __attribute__((packed)); struct vusb_response { uint8_t type; uint8_t req; uint32_t len; char data[0]; } __attribute__((packed)); struct vusb_responses { uint32_t len; struct vusb_response* generic; struct vusb_response* resps[0]; } __attribute__((packed)); static bool lookup_control_response(const struct vusb_descriptors* descs, const struct vusb_responses* resps, struct usb_ctrlrequest* ctrl, char** response_data, uint32_t* response_length) { int descs_num = 0; int resps_num = 0; if (descs) descs_num = (descs->len - offsetof(struct vusb_descriptors, descs)) / sizeof(descs->descs[0]); if (resps) resps_num = (resps->len - offsetof(struct vusb_responses, resps)) / sizeof(resps->resps[0]); uint8_t req = ctrl->bRequest; uint8_t req_type = ctrl->bRequestType & USB_TYPE_MASK; uint8_t desc_type = ctrl->wValue >> 8; if (req == USB_REQ_GET_DESCRIPTOR) { int i; for (i = 0; i < descs_num; i++) { struct vusb_descriptor* desc = descs->descs[i]; if (!desc) continue; if (desc->req_type == req_type && desc->desc_type == desc_type) { *response_length = desc->len; if (*response_length != 0) *response_data = &desc->data[0]; else *response_data = NULL; return true; } } if (descs && descs->generic) { *response_data = &descs->generic->data[0]; *response_length = descs->generic->len; return true; } } else { int i; for (i = 0; i < resps_num; i++) { struct vusb_response* resp = resps->resps[i]; if (!resp) continue; if (resp->type == req_type && resp->req == req) { *response_length = resp->len; if (*response_length != 0) *response_data = &resp->data[0]; else *response_data = NULL; return true; } } if (resps && resps->generic) { *response_data = &resps->generic->data[0]; *response_length = resps->generic->len; return true; } } return false; } #define UDC_NAME_LENGTH_MAX 128 struct usb_raw_init { __u8 driver_name[UDC_NAME_LENGTH_MAX]; __u8 device_name[UDC_NAME_LENGTH_MAX]; __u8 speed; }; enum usb_raw_event_type { USB_RAW_EVENT_INVALID = 0, USB_RAW_EVENT_CONNECT = 1, USB_RAW_EVENT_CONTROL = 2, }; struct usb_raw_event { __u32 type; __u32 length; __u8 data[0]; }; struct usb_raw_ep_io { __u16 ep; __u16 flags; __u32 length; __u8 data[0]; }; #define USB_RAW_EPS_NUM_MAX 30 #define USB_RAW_EP_NAME_MAX 16 #define USB_RAW_EP_ADDR_ANY 0xff struct usb_raw_ep_caps { __u32 type_control : 1; __u32 type_iso : 1; __u32 type_bulk : 1; __u32 type_int : 1; __u32 dir_in : 1; __u32 dir_out : 1; }; struct usb_raw_ep_limits { __u16 maxpacket_limit; __u16 max_streams; __u32 reserved; }; struct usb_raw_ep_info { __u8 name[USB_RAW_EP_NAME_MAX]; __u32 addr; struct usb_raw_ep_caps caps; struct usb_raw_ep_limits limits; }; struct usb_raw_eps_info { struct usb_raw_ep_info eps[USB_RAW_EPS_NUM_MAX]; }; #define USB_RAW_IOCTL_INIT _IOW('U', 0, struct usb_raw_init) #define USB_RAW_IOCTL_RUN _IO('U', 1) #define USB_RAW_IOCTL_EVENT_FETCH _IOR('U', 2, struct usb_raw_event) #define USB_RAW_IOCTL_EP0_WRITE _IOW('U', 3, struct usb_raw_ep_io) #define USB_RAW_IOCTL_EP0_READ _IOWR('U', 4, struct usb_raw_ep_io) #define USB_RAW_IOCTL_EP_ENABLE _IOW('U', 5, struct usb_endpoint_descriptor) #define USB_RAW_IOCTL_EP_DISABLE _IOW('U', 6, __u32) #define USB_RAW_IOCTL_EP_WRITE _IOW('U', 7, struct usb_raw_ep_io) #define USB_RAW_IOCTL_EP_READ _IOWR('U', 8, struct usb_raw_ep_io) #define USB_RAW_IOCTL_CONFIGURE _IO('U', 9) #define USB_RAW_IOCTL_VBUS_DRAW _IOW('U', 10, __u32) #define USB_RAW_IOCTL_EPS_INFO _IOR('U', 11, struct usb_raw_eps_info) #define USB_RAW_IOCTL_EP0_STALL _IO('U', 12) #define USB_RAW_IOCTL_EP_SET_HALT _IOW('U', 13, __u32) #define USB_RAW_IOCTL_EP_CLEAR_HALT _IOW('U', 14, __u32) #define USB_RAW_IOCTL_EP_SET_WEDGE _IOW('U', 15, __u32) static int usb_raw_open() { return open("/dev/raw-gadget", O_RDWR); } static int usb_raw_init(int fd, uint32_t speed, const char* driver, const char* device) { struct usb_raw_init arg; strncpy((char*)&arg.driver_name[0], driver, sizeof(arg.driver_name)); strncpy((char*)&arg.device_name[0], device, sizeof(arg.device_name)); arg.speed = speed; return ioctl(fd, USB_RAW_IOCTL_INIT, &arg); } static int usb_raw_run(int fd) { return ioctl(fd, USB_RAW_IOCTL_RUN, 0); } static int usb_raw_ep_write(int fd, struct usb_raw_ep_io* io) { return ioctl(fd, USB_RAW_IOCTL_EP_WRITE, io); } static int usb_raw_ep_read(int fd, struct usb_raw_ep_io* io) { return ioctl(fd, USB_RAW_IOCTL_EP_READ, io); } static int usb_raw_configure(int fd) { return ioctl(fd, USB_RAW_IOCTL_CONFIGURE, 0); } static int usb_raw_vbus_draw(int fd, uint32_t power) { return ioctl(fd, USB_RAW_IOCTL_VBUS_DRAW, power); } static int usb_raw_ep0_write(int fd, struct usb_raw_ep_io* io) { return ioctl(fd, USB_RAW_IOCTL_EP0_WRITE, io); } static int usb_raw_ep0_read(int fd, struct usb_raw_ep_io* io) { return ioctl(fd, USB_RAW_IOCTL_EP0_READ, io); } static int usb_raw_event_fetch(int fd, struct usb_raw_event* event) { return ioctl(fd, USB_RAW_IOCTL_EVENT_FETCH, event); } static int usb_raw_ep_enable(int fd, struct usb_endpoint_descriptor* desc) { return ioctl(fd, USB_RAW_IOCTL_EP_ENABLE, desc); } static int usb_raw_ep_disable(int fd, int ep) { return ioctl(fd, USB_RAW_IOCTL_EP_DISABLE, ep); } static int usb_raw_ep0_stall(int fd) { return ioctl(fd, USB_RAW_IOCTL_EP0_STALL, 0); } static int lookup_interface(int fd, uint8_t bInterfaceNumber, uint8_t bAlternateSetting) { struct usb_device_index* index = lookup_usb_index(fd); if (!index) return -1; for (int i = 0; i < index->ifaces_num; i++) { if (index->ifaces[i].bInterfaceNumber == bInterfaceNumber && index->ifaces[i].bAlternateSetting == bAlternateSetting) return i; } return -1; } static int lookup_endpoint(int fd, uint8_t bEndpointAddress) { struct usb_device_index* index = lookup_usb_index(fd); if (!index) return -1; if (index->iface_cur < 0) return -1; for (int ep = 0; ep < index->ifaces[index->iface_cur].eps_num; ep++) if (index->ifaces[index->iface_cur].eps[ep].desc.bEndpointAddress == bEndpointAddress) return index->ifaces[index->iface_cur].eps[ep].handle; return -1; } #define USB_MAX_PACKET_SIZE 4096 struct usb_raw_control_event { struct usb_raw_event inner; struct usb_ctrlrequest ctrl; char data[USB_MAX_PACKET_SIZE]; }; struct usb_raw_ep_io_data { struct usb_raw_ep_io inner; char data[USB_MAX_PACKET_SIZE]; }; static void set_interface(int fd, int n) { struct usb_device_index* index = lookup_usb_index(fd); if (!index) return; if (index->iface_cur >= 0 && index->iface_cur < index->ifaces_num) { for (int ep = 0; ep < index->ifaces[index->iface_cur].eps_num; ep++) { int rv = usb_raw_ep_disable(fd, index->ifaces[index->iface_cur].eps[ep].handle); if (rv < 0) { } else { } } } if (n >= 0 && n < index->ifaces_num) { for (int ep = 0; ep < index->ifaces[n].eps_num; ep++) { int rv = usb_raw_ep_enable(fd, &index->ifaces[n].eps[ep].desc); if (rv < 0) { } else { index->ifaces[n].eps[ep].handle = rv; } } index->iface_cur = n; } } static int configure_device(int fd) { struct usb_device_index* index = lookup_usb_index(fd); if (!index) return -1; int rv = usb_raw_vbus_draw(fd, index->bMaxPower); if (rv < 0) { return rv; } rv = usb_raw_configure(fd); if (rv < 0) { return rv; } set_interface(fd, 0); return 0; } static volatile long syz_usb_connect_impl(uint64_t speed, uint64_t dev_len, const char* dev, const struct vusb_connect_descriptors* descs, lookup_connect_out_response_t lookup_connect_response_out) { if (!dev) { return -1; } int fd = usb_raw_open(); if (fd < 0) { return fd; } if (fd >= MAX_FDS) { close(fd); return -1; } struct usb_device_index* index = add_usb_index(fd, dev, dev_len); if (!index) { return -1; } char device[32]; sprintf(&device[0], "dummy_udc.%llu", procid); int rv = usb_raw_init(fd, speed, "dummy_udc", &device[0]); if (rv < 0) { return rv; } rv = usb_raw_run(fd); if (rv < 0) { return rv; } bool done = false; while (!done) { struct usb_raw_control_event event; event.inner.type = 0; event.inner.length = sizeof(event.ctrl); rv = usb_raw_event_fetch(fd, (struct usb_raw_event*)&event); if (rv < 0) { return rv; } if (event.inner.type != USB_RAW_EVENT_CONTROL) continue; char* response_data = NULL; uint32_t response_length = 0; struct usb_qualifier_descriptor qual; if (event.ctrl.bRequestType & USB_DIR_IN) { if (!lookup_connect_response_in(fd, descs, &event.ctrl, &qual, &response_data, &response_length)) { usb_raw_ep0_stall(fd); continue; } } else { if (!lookup_connect_response_out(fd, descs, &event.ctrl, &done)) { usb_raw_ep0_stall(fd); continue; } response_data = NULL; response_length = event.ctrl.wLength; } if ((event.ctrl.bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD && event.ctrl.bRequest == USB_REQ_SET_CONFIGURATION) { rv = configure_device(fd); if (rv < 0) { return rv; } } struct usb_raw_ep_io_data response; response.inner.ep = 0; response.inner.flags = 0; if (response_length > sizeof(response.data)) response_length = 0; if (event.ctrl.wLength < response_length) response_length = event.ctrl.wLength; response.inner.length = response_length; if (response_data) memcpy(&response.data[0], response_data, response_length); else memset(&response.data[0], 0, response_length); if (event.ctrl.bRequestType & USB_DIR_IN) { rv = usb_raw_ep0_write(fd, (struct usb_raw_ep_io*)&response); } else { rv = usb_raw_ep0_read(fd, (struct usb_raw_ep_io*)&response); } if (rv < 0) { return rv; } } sleep_ms(200); return fd; } static volatile long syz_usb_connect(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { uint64_t speed = a0; uint64_t dev_len = a1; const char* dev = (const char*)a2; const struct vusb_connect_descriptors* descs = (const struct vusb_connect_descriptors*)a3; return syz_usb_connect_impl(speed, dev_len, dev, descs, &lookup_connect_response_out_generic); } static volatile long syz_usb_connect_ath9k(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { uint64_t speed = a0; uint64_t dev_len = a1; const char* dev = (const char*)a2; const struct vusb_connect_descriptors* descs = (const struct vusb_connect_descriptors*)a3; return syz_usb_connect_impl(speed, dev_len, dev, descs, &lookup_connect_response_out_ath9k); } static volatile long syz_usb_control_io(volatile long a0, volatile long a1, volatile long a2) { int fd = a0; const struct vusb_descriptors* descs = (const struct vusb_descriptors*)a1; const struct vusb_responses* resps = (const struct vusb_responses*)a2; struct usb_raw_control_event event; event.inner.type = 0; event.inner.length = USB_MAX_PACKET_SIZE; int rv = usb_raw_event_fetch(fd, (struct usb_raw_event*)&event); if (rv < 0) { return rv; } if (event.inner.type != USB_RAW_EVENT_CONTROL) { return -1; } char* response_data = NULL; uint32_t response_length = 0; if ((event.ctrl.bRequestType & USB_DIR_IN) && event.ctrl.wLength) { if (!lookup_control_response(descs, resps, &event.ctrl, &response_data, &response_length)) { usb_raw_ep0_stall(fd); return -1; } } else { if ((event.ctrl.bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD || event.ctrl.bRequest == USB_REQ_SET_INTERFACE) { int iface_num = event.ctrl.wIndex; int alt_set = event.ctrl.wValue; int iface_index = lookup_interface(fd, iface_num, alt_set); if (iface_index < 0) { } else { set_interface(fd, iface_index); } } response_length = event.ctrl.wLength; } struct usb_raw_ep_io_data response; response.inner.ep = 0; response.inner.flags = 0; if (response_length > sizeof(response.data)) response_length = 0; if (event.ctrl.wLength < response_length) response_length = event.ctrl.wLength; if ((event.ctrl.bRequestType & USB_DIR_IN) && !event.ctrl.wLength) { response_length = USB_MAX_PACKET_SIZE; } response.inner.length = response_length; if (response_data) memcpy(&response.data[0], response_data, response_length); else memset(&response.data[0], 0, response_length); if ((event.ctrl.bRequestType & USB_DIR_IN) && event.ctrl.wLength) { rv = usb_raw_ep0_write(fd, (struct usb_raw_ep_io*)&response); } else { rv = usb_raw_ep0_read(fd, (struct usb_raw_ep_io*)&response); } if (rv < 0) { return rv; } sleep_ms(200); return 0; } static volatile long syz_usb_ep_write(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { int fd = a0; uint8_t ep = a1; uint32_t len = a2; char* data = (char*)a3; int ep_handle = lookup_endpoint(fd, ep); if (ep_handle < 0) { return -1; } struct usb_raw_ep_io_data io_data; io_data.inner.ep = ep_handle; io_data.inner.flags = 0; if (len > sizeof(io_data.data)) len = sizeof(io_data.data); io_data.inner.length = len; memcpy(&io_data.data[0], data, len); int rv = usb_raw_ep_write(fd, (struct usb_raw_ep_io*)&io_data); if (rv < 0) { return rv; } sleep_ms(200); return 0; } static volatile long syz_usb_ep_read(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { int fd = a0; uint8_t ep = a1; uint32_t len = a2; char* data = (char*)a3; int ep_handle = lookup_endpoint(fd, ep); if (ep_handle < 0) { return -1; } struct usb_raw_ep_io_data io_data; io_data.inner.ep = ep_handle; io_data.inner.flags = 0; if (len > sizeof(io_data.data)) len = sizeof(io_data.data); io_data.inner.length = len; int rv = usb_raw_ep_read(fd, (struct usb_raw_ep_io*)&io_data); if (rv < 0) { return rv; } memcpy(&data[0], &io_data.data[0], io_data.inner.length); sleep_ms(200); return 0; } static volatile long syz_usb_disconnect(volatile long a0) { int fd = a0; int rv = close(fd); sleep_ms(200); return rv; } static long syz_open_dev(volatile long a0, volatile long a1, volatile long a2) { if (a0 == 0xc || a0 == 0xb) { char buf[128]; sprintf(buf, "/dev/%s/%d:%d", a0 == 0xc ? "char" : "block", (uint8_t)a1, (uint8_t)a2); return open(buf, O_RDWR, 0); } else { unsigned long nb = a1; char buf[1024]; char* hash; strncpy(buf, (char*)a0, sizeof(buf) - 1); buf[sizeof(buf) - 1] = 0; while ((hash = strchr(buf, '#'))) { *hash = '0' + (char)(nb % 10); nb /= 10; } return open(buf, a2 & ~O_CREAT, 0); } } static long syz_open_procfs(volatile long a0, volatile long a1) { char buf[128]; memset(buf, 0, sizeof(buf)); if (a0 == 0) { snprintf(buf, sizeof(buf), "/proc/self/%s", (char*)a1); } else if (a0 == -1) { snprintf(buf, sizeof(buf), "/proc/thread-self/%s", (char*)a1); } else { snprintf(buf, sizeof(buf), "/proc/self/task/%d/%s", (int)a0, (char*)a1); } int fd = open(buf, O_RDWR); if (fd == -1) fd = open(buf, O_RDONLY); return fd; } static long syz_open_pts(volatile long a0, volatile long a1) { int ptyno = 0; if (ioctl(a0, TIOCGPTN, &ptyno)) return -1; char buf[128]; sprintf(buf, "/dev/pts/%d", ptyno); return open(buf, a1, 0); } static long syz_init_net_socket(volatile long domain, volatile long type, volatile long proto) { int netns = open("/proc/self/ns/net", O_RDONLY); if (netns == -1) return netns; if (setns(kInitNetNsFd, 0)) return -1; int sock = syscall(__NR_socket, domain, type, proto); int err = errno; if (setns(netns, 0)) { exit(1); } close(netns); errno = err; return sock; } static long syz_socket_connect_nvme_tcp() { struct sockaddr_in nvme_local_address; int netns = open("/proc/self/ns/net", O_RDONLY); if (netns == -1) return netns; if (setns(kInitNetNsFd, 0)) return -1; int sock = syscall(__NR_socket, AF_INET, SOCK_STREAM, 0x0); int err = errno; if (setns(netns, 0)) { exit(1); } close(netns); errno = err; nvme_local_address.sin_family = AF_INET; nvme_local_address.sin_port = htobe16(4420); nvme_local_address.sin_addr.s_addr = htobe32(0x7f000001); err = syscall(__NR_connect, sock, &nvme_local_address, sizeof(nvme_local_address)); if (err != 0) { close(sock); return -1; } return sock; } static long syz_genetlink_get_family_id(volatile long name, volatile long sock_arg) { int fd = sock_arg; if (fd < 0) { fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC); if (fd == -1) { return -1; } } struct nlmsg nlmsg_tmp; int ret = netlink_query_family_id(&nlmsg_tmp, fd, (char*)name, false); if ((int)sock_arg < 0) close(fd); if (ret < 0) { return -1; } return ret; } //% This code is derived from puff.{c,h}, found in the zlib development. The //% original files come with the following copyright notice: //% Copyright (C) 2002-2013 Mark Adler, all rights reserved //% version 2.3, 21 Jan 2013 //% This software is provided 'as-is', without any express or implied //% warranty. In no event will the author be held liable for any damages //% arising from the use of this software. //% Permission is granted to anyone to use this software for any purpose, //% including commercial applications, and to alter it and redistribute it //% freely, subject to the following restrictions: //% 1. The origin of this software must not be misrepresented; you must not //% claim that you wrote the original software. If you use this software //% in a product, an acknowledgment in the product documentation would be //% appreciated but is not required. //% 2. Altered source versions must be plainly marked as such, and must not be //% misrepresented as being the original software. //% 3. This notice may not be removed or altered from any source distribution. //% Mark Adler madler@alumni.caltech.edu //% BEGIN CODE DERIVED FROM puff.{c,h} #define MAXBITS 15 #define MAXLCODES 286 #define MAXDCODES 30 #define MAXCODES (MAXLCODES + MAXDCODES) #define FIXLCODES 288 struct puff_state { unsigned char* out; unsigned long outlen; unsigned long outcnt; const unsigned char* in; unsigned long inlen; unsigned long incnt; int bitbuf; int bitcnt; jmp_buf env; }; static int puff_bits(struct puff_state* s, int need) { long val = s->bitbuf; while (s->bitcnt < need) { if (s->incnt == s->inlen) longjmp(s->env, 1); val |= (long)(s->in[s->incnt++]) << s->bitcnt; s->bitcnt += 8; } s->bitbuf = (int)(val >> need); s->bitcnt -= need; return (int)(val & ((1L << need) - 1)); } static int puff_stored(struct puff_state* s) { s->bitbuf = 0; s->bitcnt = 0; if (s->incnt + 4 > s->inlen) return 2; unsigned len = s->in[s->incnt++]; len |= s->in[s->incnt++] << 8; if (s->in[s->incnt++] != (~len & 0xff) || s->in[s->incnt++] != ((~len >> 8) & 0xff)) return -2; if (s->incnt + len > s->inlen) return 2; if (s->outcnt + len > s->outlen) return 1; for (; len--; s->outcnt++, s->incnt++) { if (s->in[s->incnt]) s->out[s->outcnt] = s->in[s->incnt]; } return 0; } struct puff_huffman { short* count; short* symbol; }; static int puff_decode(struct puff_state* s, const struct puff_huffman* h) { int first = 0; int index = 0; int bitbuf = s->bitbuf; int left = s->bitcnt; int code = first = index = 0; int len = 1; short* next = h->count + 1; while (1) { while (left--) { code |= bitbuf & 1; bitbuf >>= 1; int count = *next++; if (code - count < first) { s->bitbuf = bitbuf; s->bitcnt = (s->bitcnt - len) & 7; return h->symbol[index + (code - first)]; } index += count; first += count; first <<= 1; code <<= 1; len++; } left = (MAXBITS + 1) - len; if (left == 0) break; if (s->incnt == s->inlen) longjmp(s->env, 1); bitbuf = s->in[s->incnt++]; if (left > 8) left = 8; } return -10; } static int puff_construct(struct puff_huffman* h, const short* length, int n) { int len; for (len = 0; len <= MAXBITS; len++) h->count[len] = 0; int symbol; for (symbol = 0; symbol < n; symbol++) (h->count[length[symbol]])++; if (h->count[0] == n) return 0; int left = 1; for (len = 1; len <= MAXBITS; len++) { left <<= 1; left -= h->count[len]; if (left < 0) return left; } short offs[MAXBITS + 1]; offs[1] = 0; for (len = 1; len < MAXBITS; len++) offs[len + 1] = offs[len] + h->count[len]; for (symbol = 0; symbol < n; symbol++) if (length[symbol] != 0) h->symbol[offs[length[symbol]]++] = symbol; return left; } static int puff_codes(struct puff_state* s, const struct puff_huffman* lencode, const struct puff_huffman* distcode) { static const short lens[29] = { 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31, 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258}; static const short lext[29] = { 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0}; static const short dists[30] = { 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193, 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145, 8193, 12289, 16385, 24577}; static const short dext[30] = { 0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13}; int symbol; do { symbol = puff_decode(s, lencode); if (symbol < 0) return symbol; if (symbol < 256) { if (s->outcnt == s->outlen) return 1; if (symbol) s->out[s->outcnt] = symbol; s->outcnt++; } else if (symbol > 256) { symbol -= 257; if (symbol >= 29) return -10; int len = lens[symbol] + puff_bits(s, lext[symbol]); symbol = puff_decode(s, distcode); if (symbol < 0) return symbol; unsigned dist = dists[symbol] + puff_bits(s, dext[symbol]); if (dist > s->outcnt) return -11; if (s->outcnt + len > s->outlen) return 1; while (len--) { if (dist <= s->outcnt && s->out[s->outcnt - dist]) s->out[s->outcnt] = s->out[s->outcnt - dist]; s->outcnt++; } } } while (symbol != 256); return 0; } static int puff_fixed(struct puff_state* s) { static int virgin = 1; static short lencnt[MAXBITS + 1], lensym[FIXLCODES]; static short distcnt[MAXBITS + 1], distsym[MAXDCODES]; static struct puff_huffman lencode, distcode; if (virgin) { lencode.count = lencnt; lencode.symbol = lensym; distcode.count = distcnt; distcode.symbol = distsym; short lengths[FIXLCODES]; int symbol; for (symbol = 0; symbol < 144; symbol++) lengths[symbol] = 8; for (; symbol < 256; symbol++) lengths[symbol] = 9; for (; symbol < 280; symbol++) lengths[symbol] = 7; for (; symbol < FIXLCODES; symbol++) lengths[symbol] = 8; puff_construct(&lencode, lengths, FIXLCODES); for (symbol = 0; symbol < MAXDCODES; symbol++) lengths[symbol] = 5; puff_construct(&distcode, lengths, MAXDCODES); virgin = 0; } return puff_codes(s, &lencode, &distcode); } static int puff_dynamic(struct puff_state* s) { static const short order[19] = {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15}; int nlen = puff_bits(s, 5) + 257; int ndist = puff_bits(s, 5) + 1; int ncode = puff_bits(s, 4) + 4; if (nlen > MAXLCODES || ndist > MAXDCODES) return -3; short lengths[MAXCODES]; int index; for (index = 0; index < ncode; index++) lengths[order[index]] = puff_bits(s, 3); for (; index < 19; index++) lengths[order[index]] = 0; short lencnt[MAXBITS + 1], lensym[MAXLCODES]; struct puff_huffman lencode = {lencnt, lensym}; int err = puff_construct(&lencode, lengths, 19); if (err != 0) return -4; index = 0; while (index < nlen + ndist) { int symbol; int len; symbol = puff_decode(s, &lencode); if (symbol < 0) return symbol; if (symbol < 16) lengths[index++] = symbol; else { len = 0; if (symbol == 16) { if (index == 0) return -5; len = lengths[index - 1]; symbol = 3 + puff_bits(s, 2); } else if (symbol == 17) symbol = 3 + puff_bits(s, 3); else symbol = 11 + puff_bits(s, 7); if (index + symbol > nlen + ndist) return -6; while (symbol--) lengths[index++] = len; } } if (lengths[256] == 0) return -9; err = puff_construct(&lencode, lengths, nlen); if (err && (err < 0 || nlen != lencode.count[0] + lencode.count[1])) return -7; short distcnt[MAXBITS + 1], distsym[MAXDCODES]; struct puff_huffman distcode = {distcnt, distsym}; err = puff_construct(&distcode, lengths + nlen, ndist); if (err && (err < 0 || ndist != distcode.count[0] + distcode.count[1])) return -8; return puff_codes(s, &lencode, &distcode); } static int puff( unsigned char* dest, unsigned long* destlen, const unsigned char* source, unsigned long sourcelen) { struct puff_state s = { .out = dest, .outlen = *destlen, .outcnt = 0, .in = source, .inlen = sourcelen, .incnt = 0, .bitbuf = 0, .bitcnt = 0, }; int err; if (setjmp(s.env) != 0) err = 2; else { int last; do { last = puff_bits(&s, 1); int type = puff_bits(&s, 2); err = type == 0 ? puff_stored(&s) : (type == 1 ? puff_fixed(&s) : (type == 2 ? puff_dynamic(&s) : -1)); if (err != 0) break; } while (!last); } *destlen = s.outcnt; return err; } //% END CODE DERIVED FROM puff.{c,h} #define ZLIB_HEADER_WIDTH 2 static int puff_zlib_to_file(const unsigned char* source, unsigned long sourcelen, int dest_fd) { if (sourcelen < ZLIB_HEADER_WIDTH) return 0; source += ZLIB_HEADER_WIDTH; sourcelen -= ZLIB_HEADER_WIDTH; const unsigned long max_destlen = 132 << 20; void* ret = mmap(0, max_destlen, PROT_WRITE | PROT_READ, MAP_PRIVATE | MAP_ANON, -1, 0); if (ret == MAP_FAILED) return -1; unsigned char* dest = (unsigned char*)ret; unsigned long destlen = max_destlen; int err = puff(dest, &destlen, source, sourcelen); if (err) { munmap(dest, max_destlen); errno = -err; return -1; } if (write(dest_fd, dest, destlen) != (ssize_t)destlen) { munmap(dest, max_destlen); return -1; } return munmap(dest, max_destlen); } static int setup_loop_device(unsigned char* data, unsigned long size, const char* loopname, int* loopfd_p) { int err = 0, loopfd = -1; int memfd = syscall(__NR_memfd_create, "syzkaller", 0); if (memfd == -1) { err = errno; goto error; } if (puff_zlib_to_file(data, size, memfd)) { err = errno; goto error_close_memfd; } loopfd = open(loopname, O_RDWR); if (loopfd == -1) { err = errno; goto error_close_memfd; } if (ioctl(loopfd, LOOP_SET_FD, memfd)) { if (errno != EBUSY) { err = errno; goto error_close_loop; } ioctl(loopfd, LOOP_CLR_FD, 0); usleep(1000); if (ioctl(loopfd, LOOP_SET_FD, memfd)) { err = errno; goto error_close_loop; } } close(memfd); *loopfd_p = loopfd; return 0; error_close_loop: close(loopfd); error_close_memfd: close(memfd); error: errno = err; return -1; } static void reset_loop_device(const char* loopname) { int loopfd = open(loopname, O_RDWR); if (loopfd == -1) { return; } if (ioctl(loopfd, LOOP_CLR_FD, 0)) { } close(loopfd); } static long syz_mount_image( volatile long fsarg, volatile long dir, volatile long flags, volatile long optsarg, volatile long change_dir, volatile unsigned long size, volatile long image) { unsigned char* data = (unsigned char*)image; int res = -1, err = 0, need_loop_device = !!size; char* mount_opts = (char*)optsarg; char* target = (char*)dir; char* fs = (char*)fsarg; char* source = NULL; char loopname[64]; if (need_loop_device) { int loopfd; memset(loopname, 0, sizeof(loopname)); snprintf(loopname, sizeof(loopname), "/dev/loop%llu", procid); if (setup_loop_device(data, size, loopname, &loopfd) == -1) return -1; close(loopfd); source = loopname; } mkdir(target, 0777); char opts[256]; memset(opts, 0, sizeof(opts)); if (strlen(mount_opts) > (sizeof(opts) - 32)) { } strncpy(opts, mount_opts, sizeof(opts) - 32); if (strcmp(fs, "iso9660") == 0) { flags |= MS_RDONLY; } else if (strncmp(fs, "ext", 3) == 0) { bool has_remount_ro = false; char* remount_ro_start = strstr(opts, "errors=remount-ro"); if (remount_ro_start != NULL) { char after = *(remount_ro_start + strlen("errors=remount-ro")); char before = remount_ro_start == opts ? '\0' : *(remount_ro_start - 1); has_remount_ro = ((before == '\0' || before == ',') && (after == '\0' || after == ',')); } if (strstr(opts, "errors=panic") || !has_remount_ro) strcat(opts, ",errors=continue"); } else if (strcmp(fs, "xfs") == 0) { strcat(opts, ",nouuid"); } else if (strncmp(fs, "gfs2", 4) == 0 && (strstr(opts, "errors=panic") || strstr(opts, "debug"))) { strcat(opts, ",errors=withdraw"); } res = mount(source, target, fs, flags, opts); if (res == -1) { err = errno; goto error_clear_loop; } res = open(target, O_RDONLY | O_DIRECTORY); if (res == -1) { err = errno; goto error_clear_loop; } if (change_dir) { res = chdir(target); if (res == -1) { err = errno; } } error_clear_loop: if (need_loop_device) reset_loop_device(loopname); errno = err; return res; } #define noinline __attribute__((noinline)) #define __no_stack_protector #define __addrspace_guest #define __optnone #define GUEST_CODE __attribute__((section("guest"))) __no_stack_protector __addrspace_guest extern char *__start_guest, *__stop_guest; #define X86_ADDR_TEXT 0x0000 #define X86_ADDR_PD_IOAPIC 0x0000 #define X86_ADDR_GDT 0x1000 #define X86_ADDR_LDT 0x1800 #define X86_ADDR_PML4 0x2000 #define X86_ADDR_PDP 0x3000 #define X86_ADDR_PD 0x4000 #define X86_ADDR_STACK0 0x0f80 #define X86_ADDR_VAR_HLT 0x2800 #define X86_ADDR_VAR_SYSRET 0x2808 #define X86_ADDR_VAR_SYSEXIT 0x2810 #define X86_ADDR_VAR_IDT 0x3800 #define X86_ADDR_VAR_TSS64 0x3a00 #define X86_ADDR_VAR_TSS64_CPL3 0x3c00 #define X86_ADDR_VAR_TSS16 0x3d00 #define X86_ADDR_VAR_TSS16_2 0x3e00 #define X86_ADDR_VAR_TSS16_CPL3 0x3f00 #define X86_ADDR_VAR_TSS32 0x4800 #define X86_ADDR_VAR_TSS32_2 0x4a00 #define X86_ADDR_VAR_TSS32_CPL3 0x4c00 #define X86_ADDR_VAR_TSS32_VM86 0x4e00 #define X86_ADDR_VAR_VMXON_PTR 0x5f00 #define X86_ADDR_VAR_VMCS_PTR 0x5f08 #define X86_ADDR_VAR_VMEXIT_PTR 0x5f10 #define X86_ADDR_VAR_VMWRITE_FLD 0x5f18 #define X86_ADDR_VAR_VMWRITE_VAL 0x5f20 #define X86_ADDR_VAR_VMXON 0x6000 #define X86_ADDR_VAR_VMCS 0x7000 #define X86_ADDR_VAR_VMEXIT_CODE 0x9000 #define X86_ADDR_VAR_USER_CODE 0x9100 #define X86_ADDR_VAR_USER_CODE2 0x9120 #define X86_SYZOS_ADDR_ZERO 0x0 #define X86_SYZOS_ADDR_GDT 0x1000 #define X86_SYZOS_ADDR_PML4 0x2000 #define X86_SYZOS_ADDR_PDP 0x3000 #define X86_SYZOS_ADDR_PT_POOL 0x5000 #define X86_SYZOS_ADDR_VAR_IDT 0x25000 #define X86_SYZOS_ADDR_VAR_TSS 0x26000 #define X86_SYZOS_ADDR_SMRAM 0x30000 #define X86_SYZOS_ADDR_EXIT 0x40000 #define X86_SYZOS_ADDR_UEXIT (X86_SYZOS_ADDR_EXIT + 256) #define X86_SYZOS_ADDR_DIRTY_PAGES 0x41000 #define X86_SYZOS_ADDR_USER_CODE 0x50000 #define SYZOS_ADDR_EXECUTOR_CODE 0x54000 #define X86_SYZOS_ADDR_SCRATCH_CODE 0x58000 #define X86_SYZOS_ADDR_STACK_BOTTOM 0x60000 #define X86_SYZOS_ADDR_STACK0 0x60f80 #define X86_SYZOS_PER_VCPU_REGIONS_BASE 0x70000 #define X86_SYZOS_L1_VCPU_REGION_SIZE 0x40000 #define X86_SYZOS_L1_VCPU_OFFSET_VM_ARCH_SPECIFIC 0x0000 #define X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA 0x1000 #define X86_SYZOS_L2_VM_REGION_SIZE 0x8000 #define X86_SYZOS_L2_VM_OFFSET_VMCS_VMCB 0x0000 #define X86_SYZOS_L2_VM_OFFSET_VM_STACK 0x1000 #define X86_SYZOS_L2_VM_OFFSET_VM_CODE 0x2000 #define X86_SYZOS_L2_VM_OFFSET_VM_PGTABLE 0x3000 #define X86_SYZOS_L2_VM_OFFSET_MSR_BITMAP 0x7000 #define X86_SYZOS_ADDR_UNUSED 0x200000 #define X86_SYZOS_ADDR_IOAPIC 0xfec00000 #define X86_SYZOS_ADDR_VMCS_VMCB(cpu,vm) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA + (vm) * X86_SYZOS_L2_VM_REGION_SIZE + X86_SYZOS_L2_VM_OFFSET_VMCS_VMCB) #define X86_SYZOS_ADDR_VM_CODE(cpu,vm) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA + (vm) * X86_SYZOS_L2_VM_REGION_SIZE + X86_SYZOS_L2_VM_OFFSET_VM_CODE) #define X86_SYZOS_ADDR_VM_STACK(cpu,vm) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA + (vm) * X86_SYZOS_L2_VM_REGION_SIZE + X86_SYZOS_L2_VM_OFFSET_VM_STACK) #define X86_SYZOS_ADDR_VM_PGTABLE(cpu,vm) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA + (vm) * X86_SYZOS_L2_VM_REGION_SIZE + X86_SYZOS_L2_VM_OFFSET_VM_PGTABLE) #define X86_SYZOS_ADDR_MSR_BITMAP(cpu,vm) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA + (vm) * X86_SYZOS_L2_VM_REGION_SIZE + X86_SYZOS_L2_VM_OFFSET_MSR_BITMAP) #define X86_SYZOS_ADDR_VM_ARCH_SPECIFIC(cpu) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_VM_ARCH_SPECIFIC) #define X86_SYZOS_SEL_CODE 0x8 #define X86_SYZOS_SEL_DATA 0x10 #define X86_SYZOS_SEL_TSS64 0x18 #define X86_CR0_PE 1ULL #define X86_CR0_MP (1ULL << 1) #define X86_CR0_EM (1ULL << 2) #define X86_CR0_TS (1ULL << 3) #define X86_CR0_ET (1ULL << 4) #define X86_CR0_NE (1ULL << 5) #define X86_CR0_WP (1ULL << 16) #define X86_CR0_AM (1ULL << 18) #define X86_CR0_NW (1ULL << 29) #define X86_CR0_CD (1ULL << 30) #define X86_CR0_PG (1ULL << 31) #define X86_CR4_VME 1ULL #define X86_CR4_PVI (1ULL << 1) #define X86_CR4_TSD (1ULL << 2) #define X86_CR4_DE (1ULL << 3) #define X86_CR4_PSE (1ULL << 4) #define X86_CR4_PAE (1ULL << 5) #define X86_CR4_MCE (1ULL << 6) #define X86_CR4_PGE (1ULL << 7) #define X86_CR4_PCE (1ULL << 8) #define X86_CR4_OSFXSR (1ULL << 8) #define X86_CR4_OSXMMEXCPT (1ULL << 10) #define X86_CR4_UMIP (1ULL << 11) #define X86_CR4_VMXE (1ULL << 13) #define X86_CR4_SMXE (1ULL << 14) #define X86_CR4_FSGSBASE (1ULL << 16) #define X86_CR4_PCIDE (1ULL << 17) #define X86_CR4_OSXSAVE (1ULL << 18) #define X86_CR4_SMEP (1ULL << 20) #define X86_CR4_SMAP (1ULL << 21) #define X86_CR4_PKE (1ULL << 22) #define X86_EFER_SCE 1ULL #define X86_EFER_LME (1ULL << 8) #define X86_EFER_LMA (1ULL << 10) #define X86_EFER_NXE (1ULL << 11) #define X86_EFER_SVME (1ULL << 12) #define X86_EFER_LMSLE (1ULL << 13) #define X86_EFER_FFXSR (1ULL << 14) #define X86_EFER_TCE (1ULL << 15) #define X86_PDE32_PRESENT 1UL #define X86_PDE32_RW (1UL << 1) #define X86_PDE32_USER (1UL << 2) #define X86_PDE32_PS (1UL << 7) #define X86_PDE64_PRESENT 1 #define X86_PDE64_RW (1ULL << 1) #define X86_PDE64_USER (1ULL << 2) #define X86_PDE64_ACCESSED (1ULL << 5) #define X86_PDE64_DIRTY (1ULL << 6) #define X86_PDE64_PS (1ULL << 7) #define X86_PDE64_G (1ULL << 8) #define EPT_MEMTYPE_WB (6ULL << 3) #define EPT_ACCESSED (1ULL << 8) #define EPT_DIRTY (1ULL << 9) #define X86_SEL_LDT (1 << 3) #define X86_SEL_CS16 (2 << 3) #define X86_SEL_DS16 (3 << 3) #define X86_SEL_CS16_CPL3 ((4 << 3) + 3) #define X86_SEL_DS16_CPL3 ((5 << 3) + 3) #define X86_SEL_CS32 (6 << 3) #define X86_SEL_DS32 (7 << 3) #define X86_SEL_CS32_CPL3 ((8 << 3) + 3) #define X86_SEL_DS32_CPL3 ((9 << 3) + 3) #define X86_SEL_CS64 (10 << 3) #define X86_SEL_DS64 (11 << 3) #define X86_SEL_CS64_CPL3 ((12 << 3) + 3) #define X86_SEL_DS64_CPL3 ((13 << 3) + 3) #define X86_SEL_CGATE16 (14 << 3) #define X86_SEL_TGATE16 (15 << 3) #define X86_SEL_CGATE32 (16 << 3) #define X86_SEL_TGATE32 (17 << 3) #define X86_SEL_CGATE64 (18 << 3) #define X86_SEL_CGATE64_HI (19 << 3) #define X86_SEL_TSS16 (20 << 3) #define X86_SEL_TSS16_2 (21 << 3) #define X86_SEL_TSS16_CPL3 ((22 << 3) + 3) #define X86_SEL_TSS32 (23 << 3) #define X86_SEL_TSS32_2 (24 << 3) #define X86_SEL_TSS32_CPL3 ((25 << 3) + 3) #define X86_SEL_TSS32_VM86 (26 << 3) #define X86_SEL_TSS64 (27 << 3) #define X86_SEL_TSS64_HI (28 << 3) #define X86_SEL_TSS64_CPL3 ((29 << 3) + 3) #define X86_SEL_TSS64_CPL3_HI (30 << 3) #define X86_MSR_IA32_FEATURE_CONTROL 0x3a #define X86_MSR_IA32_VMX_BASIC 0x480 #define X86_MSR_IA32_SMBASE 0x9e #define X86_MSR_IA32_SYSENTER_CS 0x174 #define X86_MSR_IA32_SYSENTER_ESP 0x175 #define X86_MSR_IA32_SYSENTER_EIP 0x176 #define X86_MSR_IA32_CR_PAT 0x277 #define X86_MSR_CORE_PERF_GLOBAL_CTRL 0x38f #define X86_MSR_IA32_VMX_TRUE_PINBASED_CTLS 0x48d #define X86_MSR_IA32_VMX_TRUE_PROCBASED_CTLS 0x48e #define X86_MSR_IA32_VMX_TRUE_EXIT_CTLS 0x48f #define X86_MSR_IA32_VMX_TRUE_ENTRY_CTLS 0x490 #define X86_MSR_IA32_EFER 0xc0000080 #define X86_MSR_IA32_STAR 0xC0000081 #define X86_MSR_IA32_LSTAR 0xC0000082 #define X86_MSR_FS_BASE 0xc0000100 #define X86_MSR_GS_BASE 0xc0000101 #define X86_MSR_VM_HSAVE_PA 0xc0010117 #define X86_MSR_IA32_VMX_PROCBASED_CTLS2 0x48B #define RFLAGS_1_BIT (1ULL << 1) #define CPU_BASED_HLT_EXITING (1U << 7) #define CPU_BASED_RDTSC_EXITING (1U << 12) #define AR_TSS_AVAILABLE 0x0089 #define SVM_ATTR_LDTR_UNUSABLE 0x0000 #define VMX_AR_TSS_BUSY 0x008b #define VMX_AR_TSS_AVAILABLE 0x0089 #define VMX_AR_LDTR_UNUSABLE 0x10000 #define VM_ENTRY_IA32E_MODE (1U << 9) #define SECONDARY_EXEC_ENABLE_EPT (1U << 1) #define SECONDARY_EXEC_ENABLE_RDTSCP (1U << 3) #define VM_EXIT_HOST_ADDR_SPACE_SIZE (1U << 9) #define CPU_BASED_ACTIVATE_SECONDARY_CONTROLS (1U << 31) #define VMX_ACCESS_RIGHTS_P (1 << 7) #define VMX_ACCESS_RIGHTS_S (1 << 4) #define VMX_ACCESS_RIGHTS_TYPE_A (1 << 0) #define VMX_ACCESS_RIGHTS_TYPE_RW (1 << 1) #define VMX_ACCESS_RIGHTS_TYPE_E (1 << 3) #define VMX_ACCESS_RIGHTS_G (1 << 15) #define VMX_ACCESS_RIGHTS_DB (1 << 14) #define VMX_ACCESS_RIGHTS_L (1 << 13) #define VMX_AR_64BIT_DATA_STACK (VMX_ACCESS_RIGHTS_P | VMX_ACCESS_RIGHTS_S | VMX_ACCESS_RIGHTS_TYPE_RW | VMX_ACCESS_RIGHTS_TYPE_A | VMX_ACCESS_RIGHTS_G | VMX_ACCESS_RIGHTS_DB) #define VMX_AR_64BIT_CODE (VMX_ACCESS_RIGHTS_P | VMX_ACCESS_RIGHTS_S | VMX_ACCESS_RIGHTS_TYPE_E | VMX_ACCESS_RIGHTS_TYPE_RW | VMX_ACCESS_RIGHTS_TYPE_A | VMX_ACCESS_RIGHTS_G | VMX_ACCESS_RIGHTS_L) #define VMCS_VIRTUAL_PROCESSOR_ID 0x00000000 #define VMCS_POSTED_INTR_NV 0x00000002 #define VMCS_MSR_BITMAP 0x00002004 #define VMCS_VMREAD_BITMAP 0x00002006 #define VMCS_VMWRITE_BITMAP 0x00002008 #define VMCS_EPT_POINTER 0x0000201a #define VMCS_LINK_POINTER 0x00002800 #define VMCS_PIN_BASED_VM_EXEC_CONTROL 0x00004000 #define VMCS_CPU_BASED_VM_EXEC_CONTROL 0x00004002 #define VMCS_EXCEPTION_BITMAP 0x00004004 #define VMCS_PAGE_FAULT_ERROR_CODE_MASK 0x00004006 #define VMCS_PAGE_FAULT_ERROR_CODE_MATCH 0x00004008 #define VMCS_CR3_TARGET_COUNT 0x0000400a #define VMCS_VM_EXIT_CONTROLS 0x0000400c #define VMCS_VM_EXIT_MSR_STORE_COUNT 0x0000400e #define VMCS_VM_EXIT_MSR_LOAD_COUNT 0x00004010 #define VMCS_VM_ENTRY_CONTROLS 0x00004012 #define VMCS_VM_ENTRY_MSR_LOAD_COUNT 0x00004014 #define VMCS_VM_ENTRY_INTR_INFO_FIELD 0x00004016 #define VMCS_TPR_THRESHOLD 0x0000401c #define VMCS_SECONDARY_VM_EXEC_CONTROL 0x0000401e #define VMCS_VM_INSTRUCTION_ERROR 0x00004400 #define VMCS_VM_EXIT_REASON 0x00004402 #define VMCS_VMX_PREEMPTION_TIMER_VALUE 0x0000482e #define VMCS_CR0_GUEST_HOST_MASK 0x00006000 #define VMCS_CR4_GUEST_HOST_MASK 0x00006002 #define VMCS_CR0_READ_SHADOW 0x00006004 #define VMCS_CR4_READ_SHADOW 0x00006006 #define VMCS_HOST_ES_SELECTOR 0x00000c00 #define VMCS_HOST_CS_SELECTOR 0x00000c02 #define VMCS_HOST_SS_SELECTOR 0x00000c04 #define VMCS_HOST_DS_SELECTOR 0x00000c06 #define VMCS_HOST_FS_SELECTOR 0x00000c08 #define VMCS_HOST_GS_SELECTOR 0x00000c0a #define VMCS_HOST_TR_SELECTOR 0x00000c0c #define VMCS_HOST_IA32_PAT 0x00002c00 #define VMCS_HOST_IA32_EFER 0x00002c02 #define VMCS_HOST_IA32_PERF_GLOBAL_CTRL 0x00002c04 #define VMCS_HOST_IA32_SYSENTER_CS 0x00004c00 #define VMCS_HOST_CR0 0x00006c00 #define VMCS_HOST_CR3 0x00006c02 #define VMCS_HOST_CR4 0x00006c04 #define VMCS_HOST_FS_BASE 0x00006c06 #define VMCS_HOST_GS_BASE 0x00006c08 #define VMCS_HOST_TR_BASE 0x00006c0a #define VMCS_HOST_GDTR_BASE 0x00006c0c #define VMCS_HOST_IDTR_BASE 0x00006c0e #define VMCS_HOST_IA32_SYSENTER_ESP 0x00006c10 #define VMCS_HOST_IA32_SYSENTER_EIP 0x00006c12 #define VMCS_HOST_RSP 0x00006c14 #define VMCS_HOST_RIP 0x00006c16 #define VMCS_GUEST_INTR_STATUS 0x00000810 #define VMCS_GUEST_PML_INDEX 0x00000812 #define VMCS_GUEST_IA32_DEBUGCTL 0x00002802 #define VMCS_GUEST_IA32_PAT 0x00002804 #define VMCS_GUEST_IA32_EFER 0x00002806 #define VMCS_GUEST_IA32_PERF_GLOBAL_CTRL 0x00002808 #define VMCS_GUEST_ES_SELECTOR 0x00000800 #define VMCS_GUEST_CS_SELECTOR 0x00000802 #define VMCS_GUEST_SS_SELECTOR 0x00000804 #define VMCS_GUEST_DS_SELECTOR 0x00000806 #define VMCS_GUEST_FS_SELECTOR 0x00000808 #define VMCS_GUEST_GS_SELECTOR 0x0000080a #define VMCS_GUEST_LDTR_SELECTOR 0x0000080c #define VMCS_GUEST_TR_SELECTOR 0x0000080e #define VMCS_GUEST_ES_LIMIT 0x00004800 #define VMCS_GUEST_CS_LIMIT 0x00004802 #define VMCS_GUEST_SS_LIMIT 0x00004804 #define VMCS_GUEST_DS_LIMIT 0x00004806 #define VMCS_GUEST_FS_LIMIT 0x00004808 #define VMCS_GUEST_GS_LIMIT 0x0000480a #define VMCS_GUEST_LDTR_LIMIT 0x0000480c #define VMCS_GUEST_TR_LIMIT 0x0000480e #define VMCS_GUEST_GDTR_LIMIT 0x00004810 #define VMCS_GUEST_IDTR_LIMIT 0x00004812 #define VMCS_GUEST_ES_ACCESS_RIGHTS 0x00004814 #define VMCS_GUEST_CS_ACCESS_RIGHTS 0x00004816 #define VMCS_GUEST_SS_ACCESS_RIGHTS 0x00004818 #define VMCS_GUEST_DS_ACCESS_RIGHTS 0x0000481a #define VMCS_GUEST_FS_ACCESS_RIGHTS 0x0000481c #define VMCS_GUEST_GS_ACCESS_RIGHTS 0x0000481e #define VMCS_GUEST_LDTR_ACCESS_RIGHTS 0x00004820 #define VMCS_GUEST_TR_ACCESS_RIGHTS 0x00004822 #define VMCS_GUEST_ACTIVITY_STATE 0x00004824 #define VMCS_GUEST_INTERRUPTIBILITY_INFO 0x00004826 #define VMCS_GUEST_SYSENTER_CS 0x0000482a #define VMCS_GUEST_CR0 0x00006800 #define VMCS_GUEST_CR3 0x00006802 #define VMCS_GUEST_CR4 0x00006804 #define VMCS_GUEST_ES_BASE 0x00006806 #define VMCS_GUEST_CS_BASE 0x00006808 #define VMCS_GUEST_SS_BASE 0x0000680a #define VMCS_GUEST_DS_BASE 0x0000680c #define VMCS_GUEST_FS_BASE 0x0000680e #define VMCS_GUEST_GS_BASE 0x00006810 #define VMCS_GUEST_LDTR_BASE 0x00006812 #define VMCS_GUEST_TR_BASE 0x00006814 #define VMCS_GUEST_GDTR_BASE 0x00006816 #define VMCS_GUEST_IDTR_BASE 0x00006818 #define VMCS_GUEST_DR7 0x0000681a #define VMCS_GUEST_RSP 0x0000681c #define VMCS_GUEST_RIP 0x0000681e #define VMCS_GUEST_RFLAGS 0x00006820 #define VMCS_GUEST_PENDING_DBG_EXCEPTIONS 0x00006822 #define VMCS_GUEST_SYSENTER_ESP 0x00006824 #define VMCS_GUEST_SYSENTER_EIP 0x00006826 #define VMCB_CTRL_INTERCEPT_VEC3 0x0c #define VMCB_CTRL_INTERCEPT_VEC3_ALL (0xffffffff) #define VMCB_CTRL_INTERCEPT_VEC4 0x10 #define VMCB_CTRL_INTERCEPT_VEC4_ALL (0x3ff) #define VMCB_CTRL_ASID 0x058 #define VMCB_EXIT_CODE 0x070 #define VMCB_CTRL_NP_ENABLE 0x090 #define VMCB_CTRL_NPT_ENABLE_BIT 0 #define VMCB_CTRL_N_CR3 0x0b0 #define VMCB_GUEST_ES_SEL 0x400 #define VMCB_GUEST_ES_ATTR 0x402 #define VMCB_GUEST_ES_LIM 0x404 #define VMCB_GUEST_ES_BASE 0x408 #define VMCB_GUEST_CS_SEL 0x410 #define VMCB_GUEST_CS_ATTR 0x412 #define VMCB_GUEST_CS_LIM 0x414 #define VMCB_GUEST_CS_BASE 0x418 #define VMCB_GUEST_SS_SEL 0x420 #define VMCB_GUEST_SS_ATTR 0x422 #define VMCB_GUEST_SS_LIM 0x424 #define VMCB_GUEST_SS_BASE 0x428 #define VMCB_GUEST_DS_SEL 0x430 #define VMCB_GUEST_DS_ATTR 0x432 #define VMCB_GUEST_DS_LIM 0x434 #define VMCB_GUEST_DS_BASE 0x438 #define VMCB_GUEST_FS_SEL 0x440 #define VMCB_GUEST_FS_ATTR 0x442 #define VMCB_GUEST_FS_LIM 0x444 #define VMCB_GUEST_FS_BASE 0x448 #define VMCB_GUEST_GS_SEL 0x450 #define VMCB_GUEST_GS_ATTR 0x452 #define VMCB_GUEST_GS_LIM 0x454 #define VMCB_GUEST_GS_BASE 0x458 #define VMCB_GUEST_IDTR_SEL 0x480 #define VMCB_GUEST_IDTR_ATTR 0x482 #define VMCB_GUEST_IDTR_LIM 0x484 #define VMCB_GUEST_IDTR_BASE 0x488 #define VMCB_GUEST_GDTR_SEL 0x460 #define VMCB_GUEST_GDTR_ATTR 0x462 #define VMCB_GUEST_GDTR_LIM 0x464 #define VMCB_GUEST_GDTR_BASE 0x468 #define VMCB_GUEST_LDTR_SEL 0x470 #define VMCB_GUEST_LDTR_ATTR 0x472 #define VMCB_GUEST_LDTR_LIM 0x474 #define VMCB_GUEST_LDTR_BASE 0x478 #define VMCB_GUEST_TR_SEL 0x490 #define VMCB_GUEST_TR_ATTR 0x492 #define VMCB_GUEST_TR_LIM 0x494 #define VMCB_GUEST_TR_BASE 0x498 #define VMCB_GUEST_EFER 0x4d0 #define VMCB_GUEST_CR4 0x548 #define VMCB_GUEST_CR3 0x550 #define VMCB_GUEST_CR0 0x558 #define VMCB_GUEST_DR7 0x560 #define VMCB_GUEST_DR6 0x568 #define VMCB_GUEST_RFLAGS 0x570 #define VMCB_GUEST_RIP 0x578 #define VMCB_GUEST_RSP 0x5d8 #define VMCB_GUEST_PAT 0x668 #define VMCB_GUEST_DEBUGCTL 0x670 #define SVM_ATTR_G (1 << 15) #define SVM_ATTR_DB (1 << 14) #define SVM_ATTR_L (1 << 13) #define SVM_ATTR_P (1 << 7) #define SVM_ATTR_S (1 << 4) #define SVM_ATTR_TYPE_A (1 << 0) #define SVM_ATTR_TYPE_RW (1 << 1) #define SVM_ATTR_TYPE_E (1 << 3) #define SVM_ATTR_64BIT_CODE (SVM_ATTR_P | SVM_ATTR_S | SVM_ATTR_TYPE_E | SVM_ATTR_TYPE_RW | SVM_ATTR_TYPE_A | SVM_ATTR_L | SVM_ATTR_G) #define SVM_ATTR_64BIT_DATA (SVM_ATTR_P | SVM_ATTR_S | SVM_ATTR_TYPE_RW | SVM_ATTR_TYPE_A | SVM_ATTR_DB | SVM_ATTR_G) #define X86_NEXT_INSN $0xbadc0de #define X86_PREFIX_SIZE 0xba1d #define KVM_MAX_VCPU 4 #define KVM_PAGE_SIZE (1 << 12) #define KVM_GUEST_PAGES 1024 #define KVM_GUEST_MEM_SIZE (KVM_GUEST_PAGES * KVM_PAGE_SIZE) #define SZ_4K 0x00001000 #define SZ_64K 0x00010000 #define GENMASK_ULL(h,l) (((~0ULL) - (1ULL << (l)) + 1ULL) & (~0ULL >> (63 - (h)))) extern char* __start_guest; static inline uintptr_t executor_fn_guest_addr(void* fn) { volatile uintptr_t start = (uintptr_t)&__start_guest; volatile uintptr_t offset = SYZOS_ADDR_EXECUTOR_CODE; return (uintptr_t)fn - start + offset; } typedef enum { SYZOS_API_UEXIT = 0, SYZOS_API_CODE = 10, SYZOS_API_CPUID = 100, SYZOS_API_WRMSR = 101, SYZOS_API_RDMSR = 102, SYZOS_API_WR_CRN = 103, SYZOS_API_WR_DRN = 104, SYZOS_API_IN_DX = 105, SYZOS_API_OUT_DX = 106, SYZOS_API_SET_IRQ_HANDLER = 200, SYZOS_API_ENABLE_NESTED = 300, SYZOS_API_NESTED_CREATE_VM = 301, SYZOS_API_NESTED_LOAD_CODE = 302, SYZOS_API_NESTED_VMLAUNCH = 303, SYZOS_API_NESTED_VMRESUME = 304, SYZOS_API_NESTED_INTEL_VMWRITE_MASK = 340, SYZOS_API_NESTED_AMD_VMCB_WRITE_MASK = 380, SYZOS_API_NESTED_AMD_INVLPGA = 381, SYZOS_API_NESTED_AMD_STGI = 382, SYZOS_API_NESTED_AMD_CLGI = 383, SYZOS_API_NESTED_AMD_INJECT_EVENT = 384, SYZOS_API_NESTED_AMD_SET_INTERCEPT = 385, SYZOS_API_NESTED_AMD_VMLOAD = 386, SYZOS_API_NESTED_AMD_VMSAVE = 387, SYZOS_API_STOP, } syzos_api_id; struct api_call_header { uint64_t call; uint64_t size; }; struct api_call_uexit { struct api_call_header header; uint64_t exit_code; }; struct api_call_code { struct api_call_header header; uint8_t insns[]; }; struct api_call_nested_load_code { struct api_call_header header; uint64_t vm_id; uint8_t insns[]; }; struct api_call_cpuid { struct api_call_header header; uint32_t eax; uint32_t ecx; }; struct api_call_1 { struct api_call_header header; uint64_t arg; }; struct api_call_2 { struct api_call_header header; uint64_t args[2]; }; struct api_call_3 { struct api_call_header header; uint64_t args[3]; }; struct api_call_5 { struct api_call_header header; uint64_t args[5]; }; struct l2_guest_regs { uint64_t rax, rbx, rcx, rdx, rsi, rdi, rbp; uint64_t r8, r9, r10, r11, r12, r13, r14, r15; }; GUEST_CODE static void guest_uexit(uint64_t exit_code); GUEST_CODE static void nested_vm_exit_handler_intel(uint64_t exit_reason, struct l2_guest_regs* regs); GUEST_CODE static void guest_execute_code(uint8_t* insns, uint64_t size); GUEST_CODE static void guest_handle_cpuid(uint32_t eax, uint32_t ecx); GUEST_CODE static void guest_handle_wrmsr(uint64_t reg, uint64_t val); GUEST_CODE static void guest_handle_rdmsr(uint64_t reg); GUEST_CODE static void guest_handle_wr_crn(struct api_call_2* cmd); GUEST_CODE static void guest_handle_wr_drn(struct api_call_2* cmd); GUEST_CODE static void guest_handle_in_dx(struct api_call_2* cmd); GUEST_CODE static void guest_handle_out_dx(struct api_call_3* cmd); GUEST_CODE static void guest_handle_set_irq_handler(struct api_call_2* cmd); GUEST_CODE static void guest_handle_enable_nested(struct api_call_1* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_create_vm(struct api_call_1* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_load_code(struct api_call_nested_load_code* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_vmlaunch(struct api_call_1* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_vmresume(struct api_call_1* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_intel_vmwrite_mask(struct api_call_5* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_vmcb_write_mask(struct api_call_5* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_invlpga(struct api_call_2* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_stgi(); GUEST_CODE static void guest_handle_nested_amd_clgi(); GUEST_CODE static void guest_handle_nested_amd_inject_event(struct api_call_5* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_set_intercept(struct api_call_5* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_vmload(struct api_call_1* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_vmsave(struct api_call_1* cmd, uint64_t cpu_id); typedef enum { UEXIT_END = (uint64_t)-1, UEXIT_IRQ = (uint64_t)-2, UEXIT_ASSERT = (uint64_t)-3, } uexit_code; typedef enum { CPU_VENDOR_INTEL, CPU_VENDOR_AMD, } cpu_vendor_id; __attribute__((naked)) GUEST_CODE static void dummy_null_handler() { asm("iretq"); } __attribute__((naked)) GUEST_CODE static void uexit_irq_handler() { asm volatile(R"( movq $-2, %rdi call guest_uexit iretq )"); } __attribute__((used)) GUEST_CODE static void guest_main(uint64_t size, uint64_t cpu) { uint64_t addr = X86_SYZOS_ADDR_USER_CODE + cpu * KVM_PAGE_SIZE; while (size >= sizeof(struct api_call_header)) { struct api_call_header* cmd = (struct api_call_header*)addr; if (cmd->call >= SYZOS_API_STOP) return; if (cmd->size > size) return; volatile uint64_t call = cmd->call; if (call == SYZOS_API_UEXIT) { struct api_call_uexit* ucmd = (struct api_call_uexit*)cmd; guest_uexit(ucmd->exit_code); } else if (call == SYZOS_API_CODE) { struct api_call_code* ccmd = (struct api_call_code*)cmd; guest_execute_code(ccmd->insns, cmd->size - sizeof(struct api_call_header)); } else if (call == SYZOS_API_CPUID) { struct api_call_cpuid* ccmd = (struct api_call_cpuid*)cmd; guest_handle_cpuid(ccmd->eax, ccmd->ecx); } else if (call == SYZOS_API_WRMSR) { struct api_call_2* ccmd = (struct api_call_2*)cmd; guest_handle_wrmsr(ccmd->args[0], ccmd->args[1]); } else if (call == SYZOS_API_RDMSR) { struct api_call_1* ccmd = (struct api_call_1*)cmd; guest_handle_rdmsr(ccmd->arg); } else if (call == SYZOS_API_WR_CRN) { guest_handle_wr_crn((struct api_call_2*)cmd); } else if (call == SYZOS_API_WR_DRN) { guest_handle_wr_drn((struct api_call_2*)cmd); } else if (call == SYZOS_API_IN_DX) { guest_handle_in_dx((struct api_call_2*)cmd); } else if (call == SYZOS_API_OUT_DX) { guest_handle_out_dx((struct api_call_3*)cmd); } else if (call == SYZOS_API_SET_IRQ_HANDLER) { guest_handle_set_irq_handler((struct api_call_2*)cmd); } else if (call == SYZOS_API_ENABLE_NESTED) { guest_handle_enable_nested((struct api_call_1*)cmd, cpu); } else if (call == SYZOS_API_NESTED_CREATE_VM) { guest_handle_nested_create_vm((struct api_call_1*)cmd, cpu); } else if (call == SYZOS_API_NESTED_LOAD_CODE) { guest_handle_nested_load_code((struct api_call_nested_load_code*)cmd, cpu); } else if (call == SYZOS_API_NESTED_VMLAUNCH) { guest_handle_nested_vmlaunch((struct api_call_1*)cmd, cpu); } else if (call == SYZOS_API_NESTED_VMRESUME) { guest_handle_nested_vmresume((struct api_call_1*)cmd, cpu); } else if (call == SYZOS_API_NESTED_INTEL_VMWRITE_MASK) { guest_handle_nested_intel_vmwrite_mask((struct api_call_5*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_VMCB_WRITE_MASK) { guest_handle_nested_amd_vmcb_write_mask((struct api_call_5*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_INVLPGA) { guest_handle_nested_amd_invlpga((struct api_call_2*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_STGI) { guest_handle_nested_amd_stgi(); } else if (call == SYZOS_API_NESTED_AMD_CLGI) { guest_handle_nested_amd_clgi(); } else if (call == SYZOS_API_NESTED_AMD_INJECT_EVENT) { guest_handle_nested_amd_inject_event((struct api_call_5*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_SET_INTERCEPT) { guest_handle_nested_amd_set_intercept((struct api_call_5*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_VMLOAD) { guest_handle_nested_amd_vmload((struct api_call_1*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_VMSAVE) { guest_handle_nested_amd_vmsave((struct api_call_1*)cmd, cpu); } addr += cmd->size; size -= cmd->size; }; guest_uexit((uint64_t)-1); } GUEST_CODE static noinline void guest_execute_code(uint8_t* insns, uint64_t size) { volatile void (*fn)() = (volatile void (*)())insns; fn(); } __attribute__((used)) GUEST_CODE static noinline void guest_uexit(uint64_t exit_code) { volatile uint64_t* ptr = (volatile uint64_t*)X86_SYZOS_ADDR_UEXIT; *ptr = exit_code; } GUEST_CODE static noinline void guest_handle_cpuid(uint32_t eax, uint32_t ecx) { asm volatile( "cpuid\n" : : "a"(eax), "c"(ecx) : "rbx", "rdx"); } GUEST_CODE static noinline void wrmsr(uint64_t reg, uint64_t val) { asm volatile( "wrmsr" : : "c"(reg), "a"((uint32_t)val), "d"((uint32_t)(val >> 32)) : "memory"); } GUEST_CODE static noinline void guest_handle_wrmsr(uint64_t reg, uint64_t val) { wrmsr(reg, val); } GUEST_CODE static noinline uint64_t rdmsr(uint64_t msr_id) { uint32_t low = 0, high = 0; asm volatile("rdmsr" : "=a"(low), "=d"(high) : "c"(msr_id)); return ((uint64_t)high << 32) | low; } GUEST_CODE static noinline void guest_handle_rdmsr(uint64_t reg) { (void)rdmsr(reg); } GUEST_CODE static noinline void guest_handle_wr_crn(struct api_call_2* cmd) { uint64_t value = cmd->args[1]; volatile uint64_t reg = cmd->args[0]; if (reg == 0) { asm volatile("movq %0, %%cr0" ::"r"(value) : "memory"); return; } if (reg == 2) { asm volatile("movq %0, %%cr2" ::"r"(value) : "memory"); return; } if (reg == 3) { asm volatile("movq %0, %%cr3" ::"r"(value) : "memory"); return; } if (reg == 4) { asm volatile("movq %0, %%cr4" ::"r"(value) : "memory"); return; } if (reg == 8) { asm volatile("movq %0, %%cr8" ::"r"(value) : "memory"); return; } } GUEST_CODE static noinline void guest_handle_wr_drn(struct api_call_2* cmd) { uint64_t value = cmd->args[1]; volatile uint64_t reg = cmd->args[0]; if (reg == 0) { asm volatile("movq %0, %%dr0" ::"r"(value) : "memory"); return; } if (reg == 1) { asm volatile("movq %0, %%dr1" ::"r"(value) : "memory"); return; } if (reg == 2) { asm volatile("movq %0, %%dr2" ::"r"(value) : "memory"); return; } if (reg == 3) { asm volatile("movq %0, %%dr3" ::"r"(value) : "memory"); return; } if (reg == 4) { asm volatile("movq %0, %%dr4" ::"r"(value) : "memory"); return; } if (reg == 5) { asm volatile("movq %0, %%dr5" ::"r"(value) : "memory"); return; } if (reg == 6) { asm volatile("movq %0, %%dr6" ::"r"(value) : "memory"); return; } if (reg == 7) { asm volatile("movq %0, %%dr7" ::"r"(value) : "memory"); return; } } GUEST_CODE static noinline void guest_handle_in_dx(struct api_call_2* cmd) { uint16_t port = cmd->args[0]; volatile int size = cmd->args[1]; if (size == 1) { uint8_t unused; asm volatile("inb %1, %0" : "=a"(unused) : "d"(port)); return; } if (size == 2) { uint16_t unused; asm volatile("inw %1, %0" : "=a"(unused) : "d"(port)); return; } if (size == 4) { uint32_t unused; asm volatile("inl %1, %0" : "=a"(unused) : "d"(port)); } return; } GUEST_CODE static noinline void guest_handle_out_dx(struct api_call_3* cmd) { uint16_t port = cmd->args[0]; volatile int size = cmd->args[1]; uint32_t data = (uint32_t)cmd->args[2]; if (size == 1) { asm volatile("outb %b0, %w1" ::"a"(data), "d"(port)); return; } if (size == 2) { asm volatile("outw %w0, %w1" ::"a"(data), "d"(port)); return; } if (size == 4) { asm volatile("outl %k0, %w1" ::"a"(data), "d"(port)); return; } } struct idt_entry_64 { uint16_t offset_low; uint16_t selector; uint8_t ist; uint8_t type_attr; uint16_t offset_mid; uint32_t offset_high; uint32_t reserved; } __attribute__((packed)); GUEST_CODE static void set_idt_gate(uint8_t vector, uint64_t handler) { volatile struct idt_entry_64* idt = (volatile struct idt_entry_64*)(X86_SYZOS_ADDR_VAR_IDT); volatile struct idt_entry_64* idt_entry = &idt[vector]; idt_entry->offset_low = (uint16_t)handler; idt_entry->offset_mid = (uint16_t)(handler >> 16); idt_entry->offset_high = (uint32_t)(handler >> 32); idt_entry->selector = X86_SYZOS_SEL_CODE; idt_entry->type_attr = 0x8E; idt_entry->ist = 0; idt_entry->reserved = 0; } GUEST_CODE static noinline void guest_handle_set_irq_handler(struct api_call_2* cmd) { uint8_t vector = (uint8_t)cmd->args[0]; uint64_t type = cmd->args[1]; volatile uint64_t handler_addr = 0; if (type == 1) handler_addr = executor_fn_guest_addr(dummy_null_handler); else if (type == 2) handler_addr = executor_fn_guest_addr(uexit_irq_handler); set_idt_gate(vector, handler_addr); } GUEST_CODE static cpu_vendor_id get_cpu_vendor(void) { uint32_t ebx, eax = 0; asm volatile( "cpuid" : "+a"(eax), "=b"(ebx) : : "ecx", "edx"); if (ebx == 0x756e6547) { return CPU_VENDOR_INTEL; } else if (ebx == 0x68747541) { return CPU_VENDOR_AMD; } else { guest_uexit(UEXIT_ASSERT); return CPU_VENDOR_INTEL; } } GUEST_CODE static inline uint64_t read_cr0(void) { uint64_t val; asm volatile("mov %%cr0, %0" : "=r"(val)); return val; } GUEST_CODE static inline uint64_t read_cr3(void) { uint64_t val; asm volatile("mov %%cr3, %0" : "=r"(val)); return val; } GUEST_CODE static inline uint64_t read_cr4(void) { uint64_t val; asm volatile("mov %%cr4, %0" : "=r"(val)); return val; } GUEST_CODE static inline void write_cr4(uint64_t val) { asm volatile("mov %0, %%cr4" : : "r"(val)); } GUEST_CODE static noinline void vmwrite(uint64_t field, uint64_t value) { uint8_t error = 0; asm volatile("vmwrite %%rax, %%rbx; setna %0" : "=q"(error) : "a"(value), "b"(field) : "cc", "memory"); if (error) guest_uexit(UEXIT_ASSERT); } GUEST_CODE static noinline uint64_t vmread(uint64_t field) { uint64_t value; asm volatile("vmread %%rbx, %%rax" : "=a"(value) : "b"(field) : "cc"); return value; } GUEST_CODE static inline void nested_vmptrld(uint64_t cpu_id, uint64_t vm_id) { uint64_t vmcs_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint8_t error = 0; asm volatile("vmptrld %1; setna %0" : "=q"(error) : "m"(vmcs_addr) : "memory", "cc"); if (error) guest_uexit(0xE2BAD2); } GUEST_CODE static noinline void vmcb_write16(uint64_t vmcb, uint16_t offset, uint16_t val) { *((volatile uint16_t*)(vmcb + offset)) = val; } GUEST_CODE static noinline void vmcb_write32(uint64_t vmcb, uint16_t offset, uint32_t val) { *((volatile uint32_t*)(vmcb + offset)) = val; } GUEST_CODE static noinline uint32_t vmcb_read32(uint64_t vmcb, uint16_t offset) { return *((volatile uint32_t*)(vmcb + offset)); } GUEST_CODE static noinline void vmcb_write64(uint64_t vmcb, uint16_t offset, uint64_t val) { *((volatile uint64_t*)(vmcb + offset)) = val; } GUEST_CODE static noinline uint64_t vmcb_read64(volatile uint8_t* vmcb, uint16_t offset) { return *((volatile uint64_t*)(vmcb + offset)); } GUEST_CODE static void guest_memset(void* s, uint8_t c, int size) { volatile uint8_t* p = (volatile uint8_t*)s; for (int i = 0; i < size; i++) p[i] = c; } GUEST_CODE static void guest_memcpy(void* dst, void* src, int size) { volatile uint8_t* d = (volatile uint8_t*)dst; volatile uint8_t* s = (volatile uint8_t*)src; for (int i = 0; i < size; i++) d[i] = s[i]; } GUEST_CODE static noinline void nested_enable_vmx_intel(uint64_t cpu_id) { uint64_t vmxon_addr = X86_SYZOS_ADDR_VM_ARCH_SPECIFIC(cpu_id); uint64_t cr4 = read_cr4(); cr4 |= X86_CR4_VMXE; write_cr4(cr4); uint64_t feature_control = rdmsr(X86_MSR_IA32_FEATURE_CONTROL); if ((feature_control & 1) == 0) { feature_control |= 0b101; asm volatile("wrmsr" : : "d"(0x0), "c"(X86_MSR_IA32_FEATURE_CONTROL), "A"(feature_control)); } *(uint32_t*)vmxon_addr = rdmsr(X86_MSR_IA32_VMX_BASIC); uint8_t error; asm volatile("vmxon %1; setna %0" : "=q"(error) : "m"(vmxon_addr) : "memory", "cc"); if (error) { guest_uexit(0xE2BAD0); return; } } GUEST_CODE static noinline void nested_enable_svm_amd(uint64_t cpu_id) { uint64_t hsave_addr = X86_SYZOS_ADDR_VM_ARCH_SPECIFIC(cpu_id); uint64_t efer = rdmsr(X86_MSR_IA32_EFER); efer |= X86_EFER_SVME; wrmsr(X86_MSR_IA32_EFER, efer); wrmsr(X86_MSR_VM_HSAVE_PA, hsave_addr); } GUEST_CODE static noinline void guest_handle_enable_nested(struct api_call_1* cmd, uint64_t cpu_id) { if (get_cpu_vendor() == CPU_VENDOR_INTEL) { nested_enable_vmx_intel(cpu_id); } else { nested_enable_svm_amd(cpu_id); } } GUEST_CODE static noinline void setup_l2_page_tables(cpu_vendor_id vendor, uint64_t cpu_id, uint64_t vm_id) { uint64_t l2_pml4_addr = X86_SYZOS_ADDR_VM_PGTABLE(cpu_id, vm_id); uint64_t l2_pdpt_addr = l2_pml4_addr + KVM_PAGE_SIZE; uint64_t l2_pd_addr = l2_pml4_addr + 2 * KVM_PAGE_SIZE; uint64_t l2_pt_addr = l2_pml4_addr + 3 * KVM_PAGE_SIZE; volatile uint64_t* pml4 = (volatile uint64_t*)l2_pml4_addr; volatile uint64_t* pdpt = (volatile uint64_t*)l2_pdpt_addr; volatile uint64_t* pd = (volatile uint64_t*)l2_pd_addr; volatile uint64_t* pt = (volatile uint64_t*)l2_pt_addr; guest_memset((void*)l2_pml4_addr, 0, KVM_PAGE_SIZE); guest_memset((void*)l2_pdpt_addr, 0, KVM_PAGE_SIZE); guest_memset((void*)l2_pd_addr, 0, KVM_PAGE_SIZE); guest_memset((void*)l2_pt_addr, 0, KVM_PAGE_SIZE); guest_memset((void*)X86_SYZOS_ADDR_MSR_BITMAP(cpu_id, vm_id), 0, KVM_PAGE_SIZE); uint64_t flags = X86_PDE64_PRESENT | X86_PDE64_RW | X86_PDE64_USER; pml4[0] = l2_pdpt_addr | flags; pdpt[0] = l2_pd_addr | flags; pd[0] = l2_pt_addr | flags; uint64_t pt_flags = flags; if (vendor == CPU_VENDOR_INTEL) { pt_flags |= EPT_MEMTYPE_WB | EPT_ACCESSED | EPT_DIRTY; } else { pt_flags |= X86_PDE64_ACCESSED | X86_PDE64_DIRTY; } for (int i = 0; i < 512; i++) pt[i] = (i * KVM_PAGE_SIZE) | pt_flags; } GUEST_CODE static noinline void init_vmcs_control_fields(uint64_t cpu_id, uint64_t vm_id) { uint64_t vmx_msr = rdmsr(X86_MSR_IA32_VMX_TRUE_PINBASED_CTLS); vmwrite(VMCS_PIN_BASED_VM_EXEC_CONTROL, (uint32_t)vmx_msr); vmx_msr = (uint32_t)rdmsr(X86_MSR_IA32_VMX_PROCBASED_CTLS2); vmx_msr |= SECONDARY_EXEC_ENABLE_EPT | SECONDARY_EXEC_ENABLE_RDTSCP; vmwrite(VMCS_SECONDARY_VM_EXEC_CONTROL, vmx_msr); vmx_msr = rdmsr(X86_MSR_IA32_VMX_TRUE_PROCBASED_CTLS); vmx_msr |= CPU_BASED_ACTIVATE_SECONDARY_CONTROLS; vmx_msr |= CPU_BASED_HLT_EXITING | CPU_BASED_RDTSC_EXITING; vmwrite(VMCS_CPU_BASED_VM_EXEC_CONTROL, (uint32_t)vmx_msr); vmx_msr = rdmsr(X86_MSR_IA32_VMX_TRUE_EXIT_CTLS); vmwrite(VMCS_VM_EXIT_CONTROLS, (uint32_t)vmx_msr | VM_EXIT_HOST_ADDR_SPACE_SIZE); vmx_msr = rdmsr(X86_MSR_IA32_VMX_TRUE_ENTRY_CTLS); vmwrite(VMCS_VM_ENTRY_CONTROLS, (uint32_t)vmx_msr | VM_ENTRY_IA32E_MODE); uint64_t eptp = (X86_SYZOS_ADDR_VM_PGTABLE(cpu_id, vm_id) & ~0xFFF) | (6 << 0) | (3 << 3); vmwrite(VMCS_EPT_POINTER, eptp); vmwrite(VMCS_CR0_GUEST_HOST_MASK, 0); vmwrite(VMCS_CR4_GUEST_HOST_MASK, 0); vmwrite(VMCS_CR0_READ_SHADOW, read_cr0()); vmwrite(VMCS_CR4_READ_SHADOW, read_cr4()); vmwrite(VMCS_MSR_BITMAP, 0); vmwrite(VMCS_VMREAD_BITMAP, 0); vmwrite(VMCS_VMWRITE_BITMAP, 0); vmwrite(VMCS_EXCEPTION_BITMAP, (1 << 6)); vmwrite(VMCS_VIRTUAL_PROCESSOR_ID, 0); vmwrite(VMCS_POSTED_INTR_NV, 0); vmwrite(VMCS_PAGE_FAULT_ERROR_CODE_MASK, 0); vmwrite(VMCS_PAGE_FAULT_ERROR_CODE_MATCH, -1); vmwrite(VMCS_CR3_TARGET_COUNT, 0); vmwrite(VMCS_VM_EXIT_MSR_STORE_COUNT, 0); vmwrite(VMCS_VM_EXIT_MSR_LOAD_COUNT, 0); vmwrite(VMCS_VM_ENTRY_MSR_LOAD_COUNT, 0); vmwrite(VMCS_VM_ENTRY_INTR_INFO_FIELD, 0); vmwrite(VMCS_TPR_THRESHOLD, 0); } typedef enum { SYZOS_NESTED_EXIT_REASON_HLT = 1, SYZOS_NESTED_EXIT_REASON_INVD = 2, SYZOS_NESTED_EXIT_REASON_CPUID = 3, SYZOS_NESTED_EXIT_REASON_RDTSC = 4, SYZOS_NESTED_EXIT_REASON_RDTSCP = 5, SYZOS_NESTED_EXIT_REASON_UNKNOWN = 0xFF, } syz_nested_exit_reason; GUEST_CODE static void guest_uexit_l2(uint64_t exit_reason, syz_nested_exit_reason mapped_reason, cpu_vendor_id vendor) { if (mapped_reason != SYZOS_NESTED_EXIT_REASON_UNKNOWN) { guest_uexit(0xe2e20000 | mapped_reason); } else if (vendor == CPU_VENDOR_INTEL) { guest_uexit(0xe2110000 | exit_reason); } else { guest_uexit(0xe2aa0000 | exit_reason); } } #define EXIT_REASON_CPUID 0xa #define EXIT_REASON_HLT 0xc #define EXIT_REASON_INVD 0xd #define EXIT_REASON_RDTSC 0x10 #define EXIT_REASON_RDTSCP 0x33 GUEST_CODE static syz_nested_exit_reason map_intel_exit_reason(uint64_t basic_reason) { volatile uint64_t reason = basic_reason; if (reason == EXIT_REASON_HLT) return SYZOS_NESTED_EXIT_REASON_HLT; if (reason == EXIT_REASON_INVD) return SYZOS_NESTED_EXIT_REASON_INVD; if (reason == EXIT_REASON_CPUID) return SYZOS_NESTED_EXIT_REASON_CPUID; if (reason == EXIT_REASON_RDTSC) return SYZOS_NESTED_EXIT_REASON_RDTSC; if (reason == EXIT_REASON_RDTSCP) return SYZOS_NESTED_EXIT_REASON_RDTSCP; return SYZOS_NESTED_EXIT_REASON_UNKNOWN; } GUEST_CODE static void advance_l2_rip_intel(uint64_t basic_reason) { volatile uint64_t reason = basic_reason; uint64_t rip = vmread(VMCS_GUEST_RIP); if ((reason == EXIT_REASON_INVD) || (reason == EXIT_REASON_CPUID) || (reason == EXIT_REASON_RDTSC)) { rip += 2; } else if (reason == EXIT_REASON_RDTSCP) { rip += 3; } vmwrite(VMCS_GUEST_RIP, rip); } __attribute__((used)) GUEST_CODE static void nested_vm_exit_handler_intel(uint64_t exit_reason, struct l2_guest_regs* regs) { uint64_t basic_reason = exit_reason & 0xFFFF; syz_nested_exit_reason mapped_reason = map_intel_exit_reason(basic_reason); guest_uexit_l2(exit_reason, mapped_reason, CPU_VENDOR_INTEL); advance_l2_rip_intel(basic_reason); } extern char after_vmentry_label; __attribute__((naked)) GUEST_CODE static void nested_vm_exit_handler_intel_asm(void) { asm volatile(R"( push %%rax push %%rbx push %%rcx push %%rdx push %%rsi push %%rdi push %%rbp push %%r8 push %%r9 push %%r10 push %%r11 push %%r12 push %%r13 push %%r14 push %%r15 mov %%rsp, %%rsi mov %[vm_exit_reason], %%rbx vmread %%rbx, %%rdi call nested_vm_exit_handler_intel add %[stack_cleanup_size], %%rsp jmp after_vmentry_label )" : : [stack_cleanup_size] "i"(sizeof(struct l2_guest_regs)), [vm_exit_reason] "i"(VMCS_VM_EXIT_REASON) : "memory", "cc", "rbx", "rdi", "rsi"); } #define VMEXIT_RDTSC 0x6e #define VMEXIT_CPUID 0x72 #define VMEXIT_INVD 0x76 #define VMEXIT_HLT 0x78 #define VMEXIT_RDTSCP 0x87 GUEST_CODE static syz_nested_exit_reason map_amd_exit_reason(uint64_t basic_reason) { volatile uint64_t reason = basic_reason; if (reason == VMEXIT_HLT) return SYZOS_NESTED_EXIT_REASON_HLT; if (reason == VMEXIT_INVD) return SYZOS_NESTED_EXIT_REASON_INVD; if (reason == VMEXIT_CPUID) return SYZOS_NESTED_EXIT_REASON_CPUID; if (reason == VMEXIT_RDTSC) return SYZOS_NESTED_EXIT_REASON_RDTSC; if (reason == VMEXIT_RDTSCP) return SYZOS_NESTED_EXIT_REASON_RDTSCP; return SYZOS_NESTED_EXIT_REASON_UNKNOWN; } GUEST_CODE static void advance_l2_rip_amd(uint64_t basic_reason, uint64_t cpu_id, uint64_t vm_id) { volatile uint64_t reason = basic_reason; uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint64_t rip = vmcb_read64((volatile uint8_t*)vmcb_addr, VMCB_GUEST_RIP); if ((reason == VMEXIT_INVD) || (reason == VMEXIT_CPUID) || (reason == VMEXIT_RDTSC)) { rip += 2; } else if (reason == VMEXIT_RDTSCP) { rip += 3; } vmcb_write64(vmcb_addr, VMCB_GUEST_RIP, rip); } __attribute__((used)) GUEST_CODE static void nested_vm_exit_handler_amd(uint64_t exit_reason, uint64_t cpu_id, uint64_t vm_id) { volatile uint64_t basic_reason = exit_reason & 0xFFFF; syz_nested_exit_reason mapped_reason = map_amd_exit_reason(basic_reason); guest_uexit_l2(exit_reason, mapped_reason, CPU_VENDOR_AMD); advance_l2_rip_amd(basic_reason, cpu_id, vm_id); } GUEST_CODE static noinline void init_vmcs_host_state(void) { vmwrite(VMCS_HOST_CS_SELECTOR, X86_SYZOS_SEL_CODE); vmwrite(VMCS_HOST_DS_SELECTOR, X86_SYZOS_SEL_DATA); vmwrite(VMCS_HOST_ES_SELECTOR, X86_SYZOS_SEL_DATA); vmwrite(VMCS_HOST_SS_SELECTOR, X86_SYZOS_SEL_DATA); vmwrite(VMCS_HOST_FS_SELECTOR, X86_SYZOS_SEL_DATA); vmwrite(VMCS_HOST_GS_SELECTOR, X86_SYZOS_SEL_DATA); vmwrite(VMCS_HOST_TR_SELECTOR, X86_SYZOS_SEL_TSS64); vmwrite(VMCS_HOST_TR_BASE, 0); vmwrite(VMCS_HOST_GDTR_BASE, X86_SYZOS_ADDR_GDT); vmwrite(VMCS_HOST_IDTR_BASE, X86_SYZOS_ADDR_VAR_IDT); vmwrite(VMCS_HOST_FS_BASE, rdmsr(X86_MSR_FS_BASE)); vmwrite(VMCS_HOST_GS_BASE, rdmsr(X86_MSR_GS_BASE)); uint64_t tmpreg = 0; asm volatile("mov %%rsp, %0" : "=r"(tmpreg)); vmwrite(VMCS_HOST_RSP, tmpreg); vmwrite(VMCS_HOST_RIP, (uintptr_t)nested_vm_exit_handler_intel_asm); vmwrite(VMCS_HOST_CR0, read_cr0()); vmwrite(VMCS_HOST_CR3, read_cr3()); vmwrite(VMCS_HOST_CR4, read_cr4()); vmwrite(VMCS_HOST_IA32_PAT, rdmsr(X86_MSR_IA32_CR_PAT)); vmwrite(VMCS_HOST_IA32_EFER, rdmsr(X86_MSR_IA32_EFER)); vmwrite(VMCS_HOST_IA32_PERF_GLOBAL_CTRL, rdmsr(X86_MSR_CORE_PERF_GLOBAL_CTRL)); vmwrite(VMCS_HOST_IA32_SYSENTER_CS, rdmsr(X86_MSR_IA32_SYSENTER_CS)); vmwrite(VMCS_HOST_IA32_SYSENTER_ESP, rdmsr(X86_MSR_IA32_SYSENTER_ESP)); vmwrite(VMCS_HOST_IA32_SYSENTER_EIP, rdmsr(X86_MSR_IA32_SYSENTER_EIP)); } #define COPY_VMCS_FIELD(GUEST_FIELD,HOST_FIELD) vmwrite(GUEST_FIELD, vmread(HOST_FIELD)) #define SETUP_L2_SEGMENT(SEG,SELECTOR,BASE,LIMIT,AR) vmwrite(VMCS_GUEST_ ##SEG ##_SELECTOR, SELECTOR); vmwrite(VMCS_GUEST_ ##SEG ##_BASE, BASE); vmwrite(VMCS_GUEST_ ##SEG ##_LIMIT, LIMIT); vmwrite(VMCS_GUEST_ ##SEG ##_ACCESS_RIGHTS, AR); GUEST_CODE static noinline void init_vmcs_guest_state(uint64_t cpu_id, uint64_t vm_id) { uint64_t l2_code_addr = X86_SYZOS_ADDR_VM_CODE(cpu_id, vm_id); uint64_t l2_stack_addr = X86_SYZOS_ADDR_VM_STACK(cpu_id, vm_id); SETUP_L2_SEGMENT(CS, vmread(VMCS_HOST_CS_SELECTOR), 0, 0xFFFFFFFF, VMX_AR_64BIT_CODE); SETUP_L2_SEGMENT(DS, vmread(VMCS_HOST_DS_SELECTOR), 0, 0xFFFFFFFF, VMX_AR_64BIT_DATA_STACK); SETUP_L2_SEGMENT(ES, vmread(VMCS_HOST_ES_SELECTOR), 0, 0xFFFFFFFF, VMX_AR_64BIT_DATA_STACK); SETUP_L2_SEGMENT(SS, vmread(VMCS_HOST_SS_SELECTOR), 0, 0xFFFFFFFF, VMX_AR_64BIT_DATA_STACK); SETUP_L2_SEGMENT(FS, vmread(VMCS_HOST_FS_SELECTOR), vmread(VMCS_HOST_FS_BASE), 0xFFFFFFFF, VMX_AR_64BIT_DATA_STACK); SETUP_L2_SEGMENT(GS, vmread(VMCS_HOST_GS_SELECTOR), vmread(VMCS_HOST_GS_BASE), 0xFFFFFFFF, VMX_AR_64BIT_DATA_STACK); SETUP_L2_SEGMENT(TR, vmread(VMCS_HOST_TR_SELECTOR), vmread(VMCS_HOST_TR_BASE), 0x67, VMX_AR_TSS_BUSY); SETUP_L2_SEGMENT(LDTR, 0, 0, 0, VMX_AR_LDTR_UNUSABLE); vmwrite(VMCS_GUEST_CR0, vmread(VMCS_HOST_CR0)); vmwrite(VMCS_GUEST_CR3, vmread(VMCS_HOST_CR3)); vmwrite(VMCS_GUEST_CR4, vmread(VMCS_HOST_CR4)); vmwrite(VMCS_GUEST_RIP, l2_code_addr); vmwrite(VMCS_GUEST_RSP, l2_stack_addr + KVM_PAGE_SIZE - 8); vmwrite(VMCS_GUEST_RFLAGS, RFLAGS_1_BIT); vmwrite(VMCS_GUEST_DR7, 0x400); COPY_VMCS_FIELD(VMCS_GUEST_IA32_EFER, VMCS_HOST_IA32_EFER); COPY_VMCS_FIELD(VMCS_GUEST_IA32_PAT, VMCS_HOST_IA32_PAT); COPY_VMCS_FIELD(VMCS_GUEST_IA32_PERF_GLOBAL_CTRL, VMCS_HOST_IA32_PERF_GLOBAL_CTRL); COPY_VMCS_FIELD(VMCS_GUEST_SYSENTER_CS, VMCS_HOST_IA32_SYSENTER_CS); COPY_VMCS_FIELD(VMCS_GUEST_SYSENTER_ESP, VMCS_HOST_IA32_SYSENTER_ESP); COPY_VMCS_FIELD(VMCS_GUEST_SYSENTER_EIP, VMCS_HOST_IA32_SYSENTER_EIP); vmwrite(VMCS_GUEST_IA32_DEBUGCTL, 0); vmwrite(VMCS_GUEST_GDTR_BASE, vmread(VMCS_HOST_GDTR_BASE)); vmwrite(VMCS_GUEST_GDTR_LIMIT, 0xffff); vmwrite(VMCS_GUEST_IDTR_BASE, vmread(VMCS_HOST_IDTR_BASE)); vmwrite(VMCS_GUEST_IDTR_LIMIT, 0xffff); vmwrite(VMCS_LINK_POINTER, 0xffffffffffffffff); vmwrite(VMCS_GUEST_ACTIVITY_STATE, 0); vmwrite(VMCS_GUEST_INTERRUPTIBILITY_INFO, 0); vmwrite(VMCS_GUEST_PENDING_DBG_EXCEPTIONS, 0); vmwrite(VMCS_VMX_PREEMPTION_TIMER_VALUE, 0); vmwrite(VMCS_GUEST_INTR_STATUS, 0); vmwrite(VMCS_GUEST_PML_INDEX, 0); } GUEST_CODE static noinline void nested_create_vm_intel(struct api_call_1* cmd, uint64_t cpu_id) { uint64_t vm_id = cmd->arg; uint64_t vmcs_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint8_t error = 0; *(uint32_t*)vmcs_addr = rdmsr(X86_MSR_IA32_VMX_BASIC); asm volatile("vmclear %1; setna %0" : "=q"(error) : "m"(vmcs_addr) : "memory", "cc"); if (error) { guest_uexit(0xE2BAD1); return; } nested_vmptrld(cpu_id, vm_id); setup_l2_page_tables(CPU_VENDOR_INTEL, cpu_id, vm_id); init_vmcs_control_fields(cpu_id, vm_id); init_vmcs_host_state(); init_vmcs_guest_state(cpu_id, vm_id); } #define SETUP_L2_SEGMENT_SVM(VMBC_PTR,SEG_NAME,SELECTOR,BASE,LIMIT,ATTR) vmcb_write16(VMBC_PTR, VMCB_GUEST_ ##SEG_NAME ##_SEL, SELECTOR); vmcb_write16(VMBC_PTR, VMCB_GUEST_ ##SEG_NAME ##_ATTR, ATTR); vmcb_write32(VMBC_PTR, VMCB_GUEST_ ##SEG_NAME ##_LIM, LIMIT); vmcb_write64(VMBC_PTR, VMCB_GUEST_ ##SEG_NAME ##_BASE, BASE); GUEST_CODE static noinline void init_vmcb_guest_state(uint64_t cpu_id, uint64_t vm_id) { uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint64_t l2_code_addr = X86_SYZOS_ADDR_VM_CODE(cpu_id, vm_id); uint64_t l2_stack_addr = X86_SYZOS_ADDR_VM_STACK(cpu_id, vm_id); uint64_t npt_pml4_addr = X86_SYZOS_ADDR_VM_PGTABLE(cpu_id, vm_id); SETUP_L2_SEGMENT_SVM(vmcb_addr, CS, X86_SYZOS_SEL_CODE, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_CODE); SETUP_L2_SEGMENT_SVM(vmcb_addr, DS, X86_SYZOS_SEL_DATA, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_DATA); SETUP_L2_SEGMENT_SVM(vmcb_addr, ES, X86_SYZOS_SEL_DATA, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_DATA); SETUP_L2_SEGMENT_SVM(vmcb_addr, SS, X86_SYZOS_SEL_DATA, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_DATA); SETUP_L2_SEGMENT_SVM(vmcb_addr, FS, X86_SYZOS_SEL_DATA, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_DATA); SETUP_L2_SEGMENT_SVM(vmcb_addr, GS, X86_SYZOS_SEL_DATA, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_DATA); SETUP_L2_SEGMENT_SVM(vmcb_addr, TR, X86_SYZOS_SEL_TSS64, X86_SYZOS_ADDR_VAR_TSS, 0x67, VMX_AR_TSS_AVAILABLE); SETUP_L2_SEGMENT_SVM(vmcb_addr, LDTR, 0, 0, 0, SVM_ATTR_LDTR_UNUSABLE); uint64_t efer = rdmsr(X86_MSR_IA32_EFER); vmcb_write64(vmcb_addr, VMCB_GUEST_CR0, read_cr0() | X86_CR0_WP); vmcb_write64(vmcb_addr, VMCB_GUEST_CR3, read_cr3()); vmcb_write64(vmcb_addr, VMCB_GUEST_CR4, read_cr4()); vmcb_write64(vmcb_addr, VMCB_GUEST_RIP, l2_code_addr); vmcb_write64(vmcb_addr, VMCB_GUEST_RSP, l2_stack_addr + KVM_PAGE_SIZE - 8); vmcb_write64(vmcb_addr, VMCB_GUEST_RFLAGS, RFLAGS_1_BIT); vmcb_write64(vmcb_addr, VMCB_GUEST_DEBUGCTL, 0); vmcb_write64(vmcb_addr, VMCB_GUEST_DR6, 0x0); vmcb_write64(vmcb_addr, VMCB_GUEST_DR7, 0x0); vmcb_write64(vmcb_addr, VMCB_GUEST_EFER, efer & ~X86_EFER_SCE); vmcb_write64(vmcb_addr, VMCB_GUEST_PAT, rdmsr(X86_MSR_IA32_CR_PAT)); struct { uint16_t limit; uint64_t base; } __attribute__((packed)) gdtr, idtr; asm volatile("sgdt %0" : "=m"(gdtr)); asm volatile("sidt %0" : "=m"(idtr)); vmcb_write64(vmcb_addr, VMCB_GUEST_GDTR_BASE, gdtr.base); vmcb_write32(vmcb_addr, VMCB_GUEST_GDTR_LIM, gdtr.limit); vmcb_write64(vmcb_addr, VMCB_GUEST_IDTR_BASE, idtr.base); vmcb_write32(vmcb_addr, VMCB_GUEST_IDTR_LIM, idtr.limit); vmcb_write32(vmcb_addr, VMCB_CTRL_INTERCEPT_VEC3, VMCB_CTRL_INTERCEPT_VEC3_ALL); vmcb_write32(vmcb_addr, VMCB_CTRL_INTERCEPT_VEC4, VMCB_CTRL_INTERCEPT_VEC4_ALL); vmcb_write64(vmcb_addr, VMCB_CTRL_NP_ENABLE, (1 << VMCB_CTRL_NPT_ENABLE_BIT)); uint64_t npt_pointer = (npt_pml4_addr & ~0xFFF); vmcb_write64(vmcb_addr, VMCB_CTRL_N_CR3, npt_pointer); vmcb_write32(vmcb_addr, VMCB_CTRL_ASID, 1); } GUEST_CODE static noinline void nested_create_vm_amd(struct api_call_1* cmd, uint64_t cpu_id) { uint64_t vm_id = cmd->arg; uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); guest_memset((void*)vmcb_addr, 0, KVM_PAGE_SIZE); guest_memset((void*)X86_SYZOS_ADDR_VM_ARCH_SPECIFIC(cpu_id), 0, KVM_PAGE_SIZE); setup_l2_page_tables(CPU_VENDOR_AMD, cpu_id, vm_id); init_vmcb_guest_state(cpu_id, vm_id); } GUEST_CODE static noinline void guest_handle_nested_create_vm(struct api_call_1* cmd, uint64_t cpu_id) { if (get_cpu_vendor() == CPU_VENDOR_INTEL) { nested_create_vm_intel(cmd, cpu_id); } else { nested_create_vm_amd(cmd, cpu_id); } } GUEST_CODE static noinline void guest_handle_nested_load_code(struct api_call_nested_load_code* cmd, uint64_t cpu_id) { uint64_t vm_id = cmd->vm_id; uint64_t l2_code_addr = X86_SYZOS_ADDR_VM_CODE(cpu_id, vm_id); uint64_t l2_stack_addr = X86_SYZOS_ADDR_VM_STACK(cpu_id, vm_id); uint64_t l2_code_size = cmd->header.size - sizeof(struct api_call_header) - sizeof(uint64_t); if (l2_code_size > KVM_PAGE_SIZE) l2_code_size = KVM_PAGE_SIZE; guest_memcpy((void*)l2_code_addr, (void*)cmd->insns, l2_code_size); if (get_cpu_vendor() == CPU_VENDOR_INTEL) { nested_vmptrld(cpu_id, vm_id); vmwrite(VMCS_GUEST_RIP, l2_code_addr); vmwrite(VMCS_GUEST_RSP, l2_stack_addr + KVM_PAGE_SIZE - 8); } else { vmcb_write64(X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id), VMCB_GUEST_RIP, l2_code_addr); vmcb_write64(X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id), VMCB_GUEST_RSP, l2_stack_addr + KVM_PAGE_SIZE - 8); } } GUEST_CODE static noinline __optnone void guest_handle_nested_vmentry_intel(uint64_t vm_id, uint64_t cpu_id, bool is_launch) { uint64_t vmx_error_code = 0; uint8_t fail_flag = 0; nested_vmptrld(cpu_id, vm_id); if (is_launch) { asm volatile(R"( vmlaunch setc %%al setz %%bl or %%bl, %%al)" : "=a"(fail_flag) : : "rbx", "cc", "memory"); } else { asm volatile(R"( vmresume setc %%al setz %%bl or %%bl, %%al)" : "=a"(fail_flag) : : "rbx", "cc", "memory"); } asm volatile(".globl after_vmentry_label\nafter_vmentry_label:"); if (fail_flag) { vmx_error_code = vmread(VMCS_VM_INSTRUCTION_ERROR); guest_uexit(0xE2E10000 | (uint32_t)vmx_error_code); return; } } GUEST_CODE static noinline void guest_run_amd_vm(uint64_t cpu_id, uint64_t vm_id) { uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); volatile uint8_t* vmcb_ptr = (volatile uint8_t*)vmcb_addr; uint8_t fail_flag = 0; asm volatile( "mov %1, %%rax\n\t" "vmrun\n\t" "setc %0\n\t" : "=q"(fail_flag) : "m"(vmcb_addr) : "rax", "cc", "memory"); if (fail_flag) { guest_uexit(0xE2E10000 | 0xFFFF); return; } uint64_t exit_reason = vmcb_read64(vmcb_ptr, VMCB_EXIT_CODE); nested_vm_exit_handler_amd(exit_reason, cpu_id, vm_id); } GUEST_CODE static noinline void guest_handle_nested_vmlaunch(struct api_call_1* cmd, uint64_t cpu_id) { uint64_t vm_id = cmd->arg; if (get_cpu_vendor() == CPU_VENDOR_INTEL) { guest_handle_nested_vmentry_intel(vm_id, cpu_id, true); } else { guest_run_amd_vm(cpu_id, vm_id); } } GUEST_CODE static noinline void guest_handle_nested_vmresume(struct api_call_1* cmd, uint64_t cpu_id) { uint64_t vm_id = cmd->arg; if (get_cpu_vendor() == CPU_VENDOR_INTEL) { guest_handle_nested_vmentry_intel(vm_id, cpu_id, false); } else { guest_run_amd_vm(cpu_id, vm_id); } } GUEST_CODE static noinline void guest_handle_nested_intel_vmwrite_mask(struct api_call_5* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_INTEL) return; uint64_t vm_id = cmd->args[0]; nested_vmptrld(cpu_id, vm_id); uint64_t field = cmd->args[1]; uint64_t set_mask = cmd->args[2]; uint64_t unset_mask = cmd->args[3]; uint64_t flip_mask = cmd->args[4]; uint64_t current_value = vmread(field); uint64_t new_value = (current_value & ~unset_mask) | set_mask; new_value ^= flip_mask; vmwrite(field, new_value); } GUEST_CODE static noinline void guest_handle_nested_amd_vmcb_write_mask(struct api_call_5* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t vm_id = cmd->args[0]; uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint64_t offset = cmd->args[1]; uint64_t set_mask = cmd->args[2]; uint64_t unset_mask = cmd->args[3]; uint64_t flip_mask = cmd->args[4]; uint64_t current_value = vmcb_read64((volatile uint8_t*)vmcb_addr, offset); uint64_t new_value = (current_value & ~unset_mask) | set_mask; new_value ^= flip_mask; vmcb_write64(vmcb_addr, offset, new_value); } GUEST_CODE static noinline void guest_handle_nested_amd_invlpga(struct api_call_2* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t linear_addr = cmd->args[0]; uint32_t asid = (uint32_t)cmd->args[1]; asm volatile("invlpga" : : "a"(linear_addr), "c"(asid) : "memory"); } GUEST_CODE static noinline void guest_handle_nested_amd_stgi() { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; asm volatile("stgi" ::: "memory"); } GUEST_CODE static noinline void guest_handle_nested_amd_clgi() { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; asm volatile("clgi" ::: "memory"); } GUEST_CODE static noinline void guest_handle_nested_amd_inject_event(struct api_call_5* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t vm_id = cmd->args[0]; uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint64_t vector = cmd->args[1] & 0xFF; uint64_t type = cmd->args[2] & 0x7; uint64_t error_code = cmd->args[3] & 0xFFFFFFFF; uint64_t flags = cmd->args[4]; uint64_t event_inj = vector; event_inj |= (type << 8); if (flags & 2) event_inj |= (1ULL << 11); if (flags & 1) event_inj |= (1ULL << 31); event_inj |= (error_code << 32); vmcb_write64(vmcb_addr, 0x60, event_inj); } GUEST_CODE static noinline void guest_handle_nested_amd_set_intercept(struct api_call_5* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t vm_id = cmd->args[0]; uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint64_t offset = cmd->args[1]; uint64_t bit_mask = cmd->args[2]; uint64_t action = cmd->args[3]; uint32_t current = vmcb_read32(vmcb_addr, (uint16_t)offset); if (action == 1) current |= (uint32_t)bit_mask; else current &= ~((uint32_t)bit_mask); vmcb_write32(vmcb_addr, (uint16_t)offset, current); } GUEST_CODE static noinline void guest_handle_nested_amd_vmload(struct api_call_1* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t vm_id = cmd->arg; uint64_t vmcb_pa = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); asm volatile("vmload %%rax" ::"a"(vmcb_pa) : "memory"); } GUEST_CODE static noinline void guest_handle_nested_amd_vmsave(struct api_call_1* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t vm_id = cmd->arg; uint64_t vmcb_pa = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); asm volatile("vmsave %%rax" ::"a"(vmcb_pa) : "memory"); } const char kvm_asm16_cpl3[] = "\x0f\x20\xc0\x66\x83\xc8\x01\x0f\x22\xc0\xb8\xa0\x00\x0f\x00\xd8\xb8\x2b\x00\x8e\xd8\x8e\xc0\x8e\xe0\x8e\xe8\xbc\x00\x01\xc7\x06\x00\x01\x1d\xba\xc7\x06\x02\x01\x23\x00\xc7\x06\x04\x01\x00\x01\xc7\x06\x06\x01\x2b\x00\xcb"; const char kvm_asm32_paged[] = "\x0f\x20\xc0\x0d\x00\x00\x00\x80\x0f\x22\xc0"; const char kvm_asm32_vm86[] = "\x66\xb8\xb8\x00\x0f\x00\xd8\xea\x00\x00\x00\x00\xd0\x00"; const char kvm_asm32_paged_vm86[] = "\x0f\x20\xc0\x0d\x00\x00\x00\x80\x0f\x22\xc0\x66\xb8\xb8\x00\x0f\x00\xd8\xea\x00\x00\x00\x00\xd0\x00"; const char kvm_asm64_enable_long[] = "\x0f\x20\xc0\x0d\x00\x00\x00\x80\x0f\x22\xc0\xea\xde\xc0\xad\x0b\x50\x00\x48\xc7\xc0\xd8\x00\x00\x00\x0f\x00\xd8"; const char kvm_asm64_init_vm[] = 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const char kvm_asm64_vm_exit[] = "\x48\xc7\xc3\x00\x44\x00\x00\x0f\x78\xda\x48\xc7\xc3\x02\x44\x00\x00\x0f\x78\xd9\x48\xc7\xc0\x00\x64\x00\x00\x0f\x78\xc0\x48\xc7\xc3\x1e\x68\x00\x00\x0f\x78\xdb\xf4"; const char kvm_asm64_cpl3[] = "\x0f\x20\xc0\x0d\x00\x00\x00\x80\x0f\x22\xc0\xea\xde\xc0\xad\x0b\x50\x00\x48\xc7\xc0\xd8\x00\x00\x00\x0f\x00\xd8\x48\xc7\xc0\x6b\x00\x00\x00\x8e\xd8\x8e\xc0\x8e\xe0\x8e\xe8\x48\xc7\xc4\x80\x0f\x00\x00\x48\xc7\x04\x24\x1d\xba\x00\x00\x48\xc7\x44\x24\x04\x63\x00\x00\x00\x48\xc7\x44\x24\x08\x80\x0f\x00\x00\x48\xc7\x44\x24\x0c\x6b\x00\x00\x00\xcb"; #define KVM_SMI _IO(KVMIO, 0xb7) struct tss16 { uint16_t prev; uint16_t sp0; uint16_t ss0; uint16_t sp1; uint16_t ss1; uint16_t sp2; uint16_t ss2; uint16_t ip; uint16_t flags; uint16_t ax; uint16_t cx; uint16_t dx; uint16_t bx; uint16_t sp; uint16_t bp; uint16_t si; uint16_t di; uint16_t es; uint16_t cs; uint16_t ss; uint16_t ds; uint16_t ldt; } __attribute__((packed)); struct tss32 { uint16_t prev, prevh; uint32_t sp0; uint16_t ss0, ss0h; uint32_t sp1; uint16_t ss1, ss1h; uint32_t sp2; uint16_t ss2, ss2h; uint32_t cr3; uint32_t ip; uint32_t flags; uint32_t ax; uint32_t cx; uint32_t dx; uint32_t bx; uint32_t sp; uint32_t bp; uint32_t si; uint32_t di; uint16_t es, esh; uint16_t cs, csh; uint16_t ss, ssh; uint16_t ds, dsh; uint16_t fs, fsh; uint16_t gs, gsh; uint16_t ldt, ldth; uint16_t trace; uint16_t io_bitmap; } __attribute__((packed)); struct tss64 { uint32_t reserved0; uint64_t rsp[3]; uint64_t reserved1; uint64_t ist[7]; uint64_t reserved2; uint16_t reserved3; uint16_t io_bitmap; } __attribute__((packed)); static void fill_segment_descriptor(uint64_t* dt, uint64_t* lt, struct kvm_segment* seg) { uint16_t index = seg->selector >> 3; uint64_t limit = seg->g ? seg->limit >> 12 : seg->limit; uint64_t sd = (limit & 0xffff) | (seg->base & 0xffffff) << 16 | (uint64_t)seg->type << 40 | (uint64_t)seg->s << 44 | (uint64_t)seg->dpl << 45 | (uint64_t)seg->present << 47 | (limit & 0xf0000ULL) << 48 | (uint64_t)seg->avl << 52 | (uint64_t)seg->l << 53 | (uint64_t)seg->db << 54 | (uint64_t)seg->g << 55 | (seg->base & 0xff000000ULL) << 56; dt[index] = sd; lt[index] = sd; } static void fill_segment_descriptor_dword(uint64_t* dt, uint64_t* lt, struct kvm_segment* seg) { fill_segment_descriptor(dt, lt, seg); uint16_t index = seg->selector >> 3; dt[index + 1] = 0; lt[index + 1] = 0; } static void setup_syscall_msrs(int cpufd, uint16_t sel_cs, uint16_t sel_cs_cpl3) { char buf[sizeof(struct kvm_msrs) + 5 * sizeof(struct kvm_msr_entry)]; memset(buf, 0, sizeof(buf)); struct kvm_msrs* msrs = (struct kvm_msrs*)buf; struct kvm_msr_entry* entries = msrs->entries; msrs->nmsrs = 5; entries[0].index = X86_MSR_IA32_SYSENTER_CS; entries[0].data = sel_cs; entries[1].index = X86_MSR_IA32_SYSENTER_ESP; entries[1].data = X86_ADDR_STACK0; entries[2].index = X86_MSR_IA32_SYSENTER_EIP; entries[2].data = X86_ADDR_VAR_SYSEXIT; entries[3].index = X86_MSR_IA32_STAR; entries[3].data = ((uint64_t)sel_cs << 32) | ((uint64_t)sel_cs_cpl3 << 48); entries[4].index = X86_MSR_IA32_LSTAR; entries[4].data = X86_ADDR_VAR_SYSRET; ioctl(cpufd, KVM_SET_MSRS, msrs); } static void setup_32bit_idt(struct kvm_sregs* sregs, char* host_mem, uintptr_t guest_mem) { sregs->idt.base = guest_mem + X86_ADDR_VAR_IDT; sregs->idt.limit = 0x1ff; uint64_t* idt = (uint64_t*)(host_mem + sregs->idt.base); for (int i = 0; i < 32; i++) { struct kvm_segment gate; gate.selector = i << 3; switch (i % 6) { case 0: gate.type = 6; gate.base = X86_SEL_CS16; break; case 1: gate.type = 7; gate.base = X86_SEL_CS16; break; case 2: gate.type = 3; gate.base = X86_SEL_TGATE16; break; case 3: gate.type = 14; gate.base = X86_SEL_CS32; break; case 4: gate.type = 15; gate.base = X86_SEL_CS32; break; case 5: gate.type = 11; gate.base = X86_SEL_TGATE32; break; } gate.limit = guest_mem + X86_ADDR_VAR_USER_CODE2; gate.present = 1; gate.dpl = 0; gate.s = 0; gate.g = 0; gate.db = 0; gate.l = 0; gate.avl = 0; fill_segment_descriptor(idt, idt, &gate); } } static void setup_64bit_idt(struct kvm_sregs* sregs, char* host_mem, uintptr_t guest_mem) { sregs->idt.base = guest_mem + X86_ADDR_VAR_IDT; sregs->idt.limit = 0x1ff; uint64_t* idt = (uint64_t*)(host_mem + sregs->idt.base); for (int i = 0; i < 32; i++) { struct kvm_segment gate; gate.selector = (i * 2) << 3; gate.type = (i & 1) ? 14 : 15; gate.base = X86_SEL_CS64; gate.limit = guest_mem + X86_ADDR_VAR_USER_CODE2; gate.present = 1; gate.dpl = 0; gate.s = 0; gate.g = 0; gate.db = 0; gate.l = 0; gate.avl = 0; fill_segment_descriptor_dword(idt, idt, &gate); } } #define MEM_REGION_FLAG_USER_CODE (1 << 0) #define MEM_REGION_FLAG_DIRTY_LOG (1 << 1) #define MEM_REGION_FLAG_READONLY (1 << 2) #define MEM_REGION_FLAG_EXECUTOR_CODE (1 << 3) #define MEM_REGION_FLAG_GPA0 (1 << 5) #define MEM_REGION_FLAG_NO_HOST_MEM (1 << 6) struct mem_region { uint64_t gpa; int pages; uint32_t flags; }; static const struct mem_region syzos_mem_regions[] = { {X86_SYZOS_ADDR_ZERO, 48, MEM_REGION_FLAG_GPA0}, {X86_SYZOS_ADDR_SMRAM, 10, 0}, {X86_SYZOS_ADDR_EXIT, 1, MEM_REGION_FLAG_NO_HOST_MEM}, {X86_SYZOS_ADDR_DIRTY_PAGES, 2, MEM_REGION_FLAG_DIRTY_LOG}, {X86_SYZOS_ADDR_USER_CODE, KVM_MAX_VCPU, MEM_REGION_FLAG_READONLY | MEM_REGION_FLAG_USER_CODE}, {SYZOS_ADDR_EXECUTOR_CODE, 4, MEM_REGION_FLAG_READONLY | MEM_REGION_FLAG_EXECUTOR_CODE}, {X86_SYZOS_ADDR_SCRATCH_CODE, 1, 0}, {X86_SYZOS_ADDR_STACK_BOTTOM, 1, 0}, {X86_SYZOS_PER_VCPU_REGIONS_BASE, (KVM_MAX_VCPU * X86_SYZOS_L1_VCPU_REGION_SIZE) / KVM_PAGE_SIZE, 0}, {X86_SYZOS_ADDR_IOAPIC, 1, 0}, }; struct kvm_syz_vm { int vmfd; int next_cpu_id; void* host_mem; size_t total_pages; void* user_text; void* gpa0_mem; }; #define X86_NUM_IDT_ENTRIES 256 static void syzos_setup_idt(struct kvm_syz_vm* vm, struct kvm_sregs* sregs) { sregs->idt.base = X86_SYZOS_ADDR_VAR_IDT; sregs->idt.limit = (X86_NUM_IDT_ENTRIES * sizeof(struct idt_entry_64)) - 1; volatile struct idt_entry_64* idt = (volatile struct idt_entry_64*)((uint64_t)vm->host_mem + sregs->idt.base); uint64_t handler_addr = executor_fn_guest_addr(dummy_null_handler); for (int i = 0; i < X86_NUM_IDT_ENTRIES; i++) { idt[i].offset_low = (uint16_t)(handler_addr & 0xFFFF); idt[i].selector = X86_SYZOS_SEL_CODE; idt[i].ist = 0; idt[i].type_attr = 0x8E; idt[i].offset_mid = (uint16_t)((handler_addr >> 16) & 0xFFFF); idt[i].offset_high = (uint32_t)((handler_addr >> 32) & 0xFFFFFFFF); idt[i].reserved = 0; } } struct kvm_text { uintptr_t typ; const void* text; uintptr_t size; }; struct kvm_opt { uint64_t typ; uint64_t val; }; #define PAGE_MASK GENMASK_ULL(51, 12) typedef struct { uint64_t next_page; uint64_t last_page; } page_alloc_t; static uint64_t pg_alloc(page_alloc_t* alloc) { if (alloc->next_page >= alloc->last_page) exit(1); uint64_t page = alloc->next_page; alloc->next_page += KVM_PAGE_SIZE; return page; } static void map_4k_page(uint64_t host_mem, page_alloc_t* alloc, uint64_t gpa) { uint64_t* pml4 = (uint64_t*)(host_mem + X86_SYZOS_ADDR_PML4); uint64_t pml4_idx = (gpa >> 39) & 0x1FF; if (pml4[pml4_idx] == 0) pml4[pml4_idx] = X86_PDE64_PRESENT | X86_PDE64_RW | pg_alloc(alloc); uint64_t* pdpt = (uint64_t*)(host_mem + (pml4[pml4_idx] & PAGE_MASK)); uint64_t pdpt_idx = (gpa >> 30) & 0x1FF; if (pdpt[pdpt_idx] == 0) pdpt[pdpt_idx] = X86_PDE64_PRESENT | X86_PDE64_RW | pg_alloc(alloc); uint64_t* pd = (uint64_t*)(host_mem + (pdpt[pdpt_idx] & PAGE_MASK)); uint64_t pd_idx = (gpa >> 21) & 0x1FF; if (pd[pd_idx] == 0) pd[pd_idx] = X86_PDE64_PRESENT | X86_PDE64_RW | pg_alloc(alloc); uint64_t* pt = (uint64_t*)(host_mem + (pd[pd_idx] & PAGE_MASK)); uint64_t pt_idx = (gpa >> 12) & 0x1FF; pt[pt_idx] = (gpa & PAGE_MASK) | X86_PDE64_PRESENT | X86_PDE64_RW; } static int map_4k_region(uint64_t host_mem, page_alloc_t* alloc, uint64_t gpa_start, int num_pages) { for (int i = 0; i < num_pages; i++) map_4k_page(host_mem, alloc, gpa_start + (i * KVM_PAGE_SIZE)); return num_pages; } static void setup_pg_table(struct kvm_syz_vm* vm) { int total = vm->total_pages; uint64_t host_mem = (uint64_t)vm->gpa0_mem; page_alloc_t alloc = {.next_page = X86_SYZOS_ADDR_PT_POOL, .last_page = X86_SYZOS_ADDR_PT_POOL + 32 * KVM_PAGE_SIZE}; for (uint64_t i = 0; i < (alloc.last_page - alloc.next_page); i += KVM_PAGE_SIZE) memset((void*)(host_mem + alloc.next_page + i), 0, KVM_PAGE_SIZE); for (size_t i = 0; i < sizeof(syzos_mem_regions) / sizeof(syzos_mem_regions[0]); i++) total -= map_4k_region(host_mem, &alloc, syzos_mem_regions[i].gpa, syzos_mem_regions[i].pages); map_4k_region(host_mem, &alloc, X86_SYZOS_ADDR_UNUSED, total); } struct gdt_entry { uint16_t limit_low; uint16_t base_low; uint8_t base_mid; uint8_t access; uint8_t limit_high_and_flags; uint8_t base_high; } __attribute__((packed)); static void setup_gdt_64(struct gdt_entry* gdt) { gdt[0] = (struct gdt_entry){0}; gdt[X86_SYZOS_SEL_CODE >> 3] = (struct gdt_entry){ .limit_low = 0xFFFF, .base_low = 0, .base_mid = 0, .access = 0x9A, .limit_high_and_flags = 0xAF, .base_high = 0}; gdt[X86_SYZOS_SEL_DATA >> 3] = (struct gdt_entry){ .limit_low = 0xFFFF, .base_low = (uint16_t)(X86_SYZOS_ADDR_VAR_TSS & 0xFFFF), .base_mid = (uint8_t)((X86_SYZOS_ADDR_VAR_TSS >> 16) & 0xFF), .access = 0x92, .limit_high_and_flags = 0xCF, .base_high = (uint8_t)((X86_SYZOS_ADDR_VAR_TSS >> 24) & 0xFF)}; gdt[X86_SYZOS_SEL_TSS64 >> 3] = (struct gdt_entry){ .limit_low = 0x67, .base_low = 0, .base_mid = 0, .access = 0x89, .limit_high_and_flags = 0x00, .base_high = 0}; } static void setup_gdt_ldt_pg(struct kvm_syz_vm* vm, int cpufd) { struct kvm_sregs sregs; ioctl(cpufd, KVM_GET_SREGS, &sregs); sregs.gdt.base = X86_SYZOS_ADDR_GDT; sregs.gdt.limit = 5 * sizeof(struct gdt_entry) - 1; struct gdt_entry* gdt = (struct gdt_entry*)((uint64_t)vm->host_mem + sregs.gdt.base); struct kvm_segment seg_cs64; memset(&seg_cs64, 0, sizeof(seg_cs64)); seg_cs64.selector = X86_SYZOS_SEL_CODE; seg_cs64.type = 11; seg_cs64.base = 0; seg_cs64.limit = 0xFFFFFFFFu; seg_cs64.present = 1; seg_cs64.s = 1; seg_cs64.g = 1; seg_cs64.l = 1; sregs.cs = seg_cs64; struct kvm_segment seg_ds64; memset(&seg_ds64, 0, sizeof(struct kvm_segment)); seg_ds64.selector = X86_SYZOS_SEL_DATA; seg_ds64.type = 3; seg_ds64.limit = 0xFFFFFFFFu; seg_ds64.present = 1; seg_ds64.s = 1; seg_ds64.g = 1; seg_ds64.db = 1; sregs.ds = seg_ds64; sregs.es = seg_ds64; sregs.fs = seg_ds64; sregs.gs = seg_ds64; sregs.ss = seg_ds64; struct kvm_segment seg_tr; memset(&seg_tr, 0, sizeof(seg_tr)); seg_tr.selector = X86_SYZOS_SEL_TSS64; seg_tr.type = 11; seg_tr.base = X86_SYZOS_ADDR_VAR_TSS; seg_tr.limit = 0x67; seg_tr.present = 1; seg_tr.s = 0; sregs.tr = seg_tr; volatile uint8_t* l1_tss = (volatile uint8_t*)((uint64_t)vm->host_mem + X86_SYZOS_ADDR_VAR_TSS); memset((void*)l1_tss, 0, 104); *(volatile uint64_t*)(l1_tss + 4) = X86_SYZOS_ADDR_STACK0; setup_gdt_64(gdt); syzos_setup_idt(vm, &sregs); setup_pg_table(vm); sregs.cr0 = X86_CR0_PE | X86_CR0_NE | X86_CR0_PG; sregs.cr4 |= X86_CR4_PAE | X86_CR4_OSFXSR; sregs.efer |= (X86_EFER_LME | X86_EFER_LMA | X86_EFER_NXE); sregs.cr3 = X86_ADDR_PML4; ioctl(cpufd, KVM_SET_SREGS, &sregs); } static void setup_cpuid(int cpufd) { int kvmfd = open("/dev/kvm", O_RDWR); char buf[sizeof(struct kvm_cpuid2) + 128 * sizeof(struct kvm_cpuid_entry2)]; memset(buf, 0, sizeof(buf)); struct kvm_cpuid2* cpuid = (struct kvm_cpuid2*)buf; cpuid->nent = 128; ioctl(kvmfd, KVM_GET_SUPPORTED_CPUID, cpuid); ioctl(cpufd, KVM_SET_CPUID2, cpuid); close(kvmfd); } #define KVM_SETUP_PAGING (1 << 0) #define KVM_SETUP_PAE (1 << 1) #define KVM_SETUP_PROTECTED (1 << 2) #define KVM_SETUP_CPL3 (1 << 3) #define KVM_SETUP_VIRT86 (1 << 4) #define KVM_SETUP_SMM (1 << 5) #define KVM_SETUP_VM (1 << 6) static volatile long syz_kvm_setup_cpu(volatile long a0, volatile long a1, volatile long a2, volatile long a3, volatile long a4, volatile long a5, volatile long a6, volatile long a7) { const int vmfd = a0; const int cpufd = a1; char* const host_mem = (char*)a2; const struct kvm_text* const text_array_ptr = (struct kvm_text*)a3; const uintptr_t text_count = a4; const uintptr_t flags = a5; const struct kvm_opt* const opt_array_ptr = (struct kvm_opt*)a6; uintptr_t opt_count = a7; const uintptr_t page_size = 4 << 10; const uintptr_t ioapic_page = 10; const uintptr_t guest_mem_size = 24 * page_size; const uintptr_t guest_mem = 0; (void)text_count; int text_type = text_array_ptr[0].typ; const void* text = text_array_ptr[0].text; uintptr_t text_size = text_array_ptr[0].size; for (uintptr_t i = 0; i < guest_mem_size / page_size; i++) { struct kvm_userspace_memory_region memreg; memreg.slot = i; memreg.flags = 0; memreg.guest_phys_addr = guest_mem + i * page_size; if (i == ioapic_page) memreg.guest_phys_addr = 0xfec00000; memreg.memory_size = page_size; memreg.userspace_addr = (uintptr_t)host_mem + i * page_size; ioctl(vmfd, KVM_SET_USER_MEMORY_REGION, &memreg); } struct kvm_userspace_memory_region memreg; memreg.slot = 1 + (1 << 16); memreg.flags = 0; memreg.guest_phys_addr = 0x30000; memreg.memory_size = 64 << 10; memreg.userspace_addr = (uintptr_t)host_mem; ioctl(vmfd, KVM_SET_USER_MEMORY_REGION, &memreg); struct kvm_sregs sregs; if (ioctl(cpufd, KVM_GET_SREGS, &sregs)) return -1; struct kvm_regs regs; memset(®s, 0, sizeof(regs)); regs.rip = guest_mem + X86_ADDR_TEXT; regs.rsp = X86_ADDR_STACK0; sregs.gdt.base = guest_mem + X86_ADDR_GDT; sregs.gdt.limit = 256 * sizeof(uint64_t) - 1; uint64_t* gdt = (uint64_t*)(host_mem + sregs.gdt.base); struct kvm_segment seg_ldt; memset(&seg_ldt, 0, sizeof(seg_ldt)); seg_ldt.selector = X86_SEL_LDT; seg_ldt.type = 2; seg_ldt.base = guest_mem + X86_ADDR_LDT; seg_ldt.limit = 256 * sizeof(uint64_t) - 1; seg_ldt.present = 1; seg_ldt.dpl = 0; seg_ldt.s = 0; seg_ldt.g = 0; seg_ldt.db = 1; seg_ldt.l = 0; sregs.ldt = seg_ldt; uint64_t* ldt = (uint64_t*)(host_mem + sregs.ldt.base); struct kvm_segment seg_cs16; memset(&seg_cs16, 0, sizeof(seg_cs16)); seg_cs16.selector = X86_SEL_CS16; seg_cs16.type = 11; seg_cs16.base = 0; seg_cs16.limit = 0xfffff; seg_cs16.present = 1; seg_cs16.dpl = 0; seg_cs16.s = 1; seg_cs16.g = 0; seg_cs16.db = 0; seg_cs16.l = 0; struct kvm_segment seg_ds16 = seg_cs16; seg_ds16.selector = X86_SEL_DS16; seg_ds16.type = 3; struct kvm_segment seg_cs16_cpl3 = seg_cs16; seg_cs16_cpl3.selector = X86_SEL_CS16_CPL3; seg_cs16_cpl3.dpl = 3; struct kvm_segment seg_ds16_cpl3 = seg_ds16; seg_ds16_cpl3.selector = X86_SEL_DS16_CPL3; seg_ds16_cpl3.dpl = 3; struct kvm_segment seg_cs32 = seg_cs16; seg_cs32.selector = X86_SEL_CS32; seg_cs32.db = 1; struct kvm_segment seg_ds32 = seg_ds16; seg_ds32.selector = X86_SEL_DS32; seg_ds32.db = 1; struct kvm_segment seg_cs32_cpl3 = seg_cs32; seg_cs32_cpl3.selector = X86_SEL_CS32_CPL3; seg_cs32_cpl3.dpl = 3; struct kvm_segment seg_ds32_cpl3 = seg_ds32; seg_ds32_cpl3.selector = X86_SEL_DS32_CPL3; seg_ds32_cpl3.dpl = 3; struct kvm_segment seg_cs64 = seg_cs16; seg_cs64.selector = X86_SEL_CS64; seg_cs64.l = 1; struct kvm_segment seg_ds64 = seg_ds32; seg_ds64.selector = X86_SEL_DS64; struct kvm_segment seg_cs64_cpl3 = seg_cs64; seg_cs64_cpl3.selector = X86_SEL_CS64_CPL3; seg_cs64_cpl3.dpl = 3; struct kvm_segment seg_ds64_cpl3 = seg_ds64; seg_ds64_cpl3.selector = X86_SEL_DS64_CPL3; seg_ds64_cpl3.dpl = 3; struct kvm_segment seg_tss32; memset(&seg_tss32, 0, sizeof(seg_tss32)); seg_tss32.selector = X86_SEL_TSS32; seg_tss32.type = 9; seg_tss32.base = X86_ADDR_VAR_TSS32; seg_tss32.limit = 0x1ff; seg_tss32.present = 1; seg_tss32.dpl = 0; seg_tss32.s = 0; seg_tss32.g = 0; seg_tss32.db = 0; seg_tss32.l = 0; struct kvm_segment seg_tss32_2 = seg_tss32; seg_tss32_2.selector = X86_SEL_TSS32_2; seg_tss32_2.base = X86_ADDR_VAR_TSS32_2; struct kvm_segment seg_tss32_cpl3 = seg_tss32; seg_tss32_cpl3.selector = X86_SEL_TSS32_CPL3; seg_tss32_cpl3.base = X86_ADDR_VAR_TSS32_CPL3; struct kvm_segment seg_tss32_vm86 = seg_tss32; seg_tss32_vm86.selector = X86_SEL_TSS32_VM86; seg_tss32_vm86.base = X86_ADDR_VAR_TSS32_VM86; struct kvm_segment seg_tss16 = seg_tss32; seg_tss16.selector = X86_SEL_TSS16; seg_tss16.base = X86_ADDR_VAR_TSS16; seg_tss16.limit = 0xff; seg_tss16.type = 1; struct kvm_segment seg_tss16_2 = seg_tss16; seg_tss16_2.selector = X86_SEL_TSS16_2; seg_tss16_2.base = X86_ADDR_VAR_TSS16_2; seg_tss16_2.dpl = 0; struct kvm_segment seg_tss16_cpl3 = seg_tss16; seg_tss16_cpl3.selector = X86_SEL_TSS16_CPL3; seg_tss16_cpl3.base = X86_ADDR_VAR_TSS16_CPL3; seg_tss16_cpl3.dpl = 3; struct kvm_segment seg_tss64 = seg_tss32; seg_tss64.selector = X86_SEL_TSS64; seg_tss64.base = X86_ADDR_VAR_TSS64; seg_tss64.limit = 0x1ff; struct kvm_segment seg_tss64_cpl3 = seg_tss64; seg_tss64_cpl3.selector = X86_SEL_TSS64_CPL3; seg_tss64_cpl3.base = X86_ADDR_VAR_TSS64_CPL3; seg_tss64_cpl3.dpl = 3; struct kvm_segment seg_cgate16; memset(&seg_cgate16, 0, sizeof(seg_cgate16)); seg_cgate16.selector = X86_SEL_CGATE16; seg_cgate16.type = 4; seg_cgate16.base = X86_SEL_CS16 | (2 << 16); seg_cgate16.limit = X86_ADDR_VAR_USER_CODE2; seg_cgate16.present = 1; seg_cgate16.dpl = 0; seg_cgate16.s = 0; seg_cgate16.g = 0; seg_cgate16.db = 0; seg_cgate16.l = 0; seg_cgate16.avl = 0; struct kvm_segment seg_tgate16 = seg_cgate16; seg_tgate16.selector = X86_SEL_TGATE16; seg_tgate16.type = 3; seg_cgate16.base = X86_SEL_TSS16_2; seg_tgate16.limit = 0; struct kvm_segment seg_cgate32 = seg_cgate16; seg_cgate32.selector = X86_SEL_CGATE32; seg_cgate32.type = 12; seg_cgate32.base = X86_SEL_CS32 | (2 << 16); struct kvm_segment seg_tgate32 = seg_cgate32; seg_tgate32.selector = X86_SEL_TGATE32; seg_tgate32.type = 11; seg_tgate32.base = X86_SEL_TSS32_2; seg_tgate32.limit = 0; struct kvm_segment seg_cgate64 = seg_cgate16; seg_cgate64.selector = X86_SEL_CGATE64; seg_cgate64.type = 12; seg_cgate64.base = X86_SEL_CS64; int kvmfd = open("/dev/kvm", O_RDWR); char buf[sizeof(struct kvm_cpuid2) + 128 * sizeof(struct kvm_cpuid_entry2)]; memset(buf, 0, sizeof(buf)); struct kvm_cpuid2* cpuid = (struct kvm_cpuid2*)buf; cpuid->nent = 128; ioctl(kvmfd, KVM_GET_SUPPORTED_CPUID, cpuid); ioctl(cpufd, KVM_SET_CPUID2, cpuid); close(kvmfd); const char* text_prefix = 0; int text_prefix_size = 0; char* host_text = host_mem + X86_ADDR_TEXT; if (text_type == 8) { if (flags & KVM_SETUP_SMM) { if (flags & KVM_SETUP_PROTECTED) { sregs.cs = seg_cs16; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds16; sregs.cr0 |= X86_CR0_PE; } else { sregs.cs.selector = 0; sregs.cs.base = 0; } *(host_mem + X86_ADDR_TEXT) = 0xf4; host_text = host_mem + 0x8000; ioctl(cpufd, KVM_SMI, 0); } else if (flags & KVM_SETUP_VIRT86) { sregs.cs = seg_cs32; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32; sregs.cr0 |= X86_CR0_PE; sregs.efer |= X86_EFER_SCE; setup_syscall_msrs(cpufd, X86_SEL_CS32, X86_SEL_CS32_CPL3); setup_32bit_idt(&sregs, host_mem, guest_mem); if (flags & KVM_SETUP_PAGING) { uint64_t pd_addr = guest_mem + X86_ADDR_PD; uint64_t* pd = (uint64_t*)(host_mem + X86_ADDR_PD); pd[0] = X86_PDE32_PRESENT | X86_PDE32_RW | X86_PDE32_USER | X86_PDE32_PS; sregs.cr3 = pd_addr; sregs.cr4 |= X86_CR4_PSE; text_prefix = kvm_asm32_paged_vm86; text_prefix_size = sizeof(kvm_asm32_paged_vm86) - 1; } else { text_prefix = kvm_asm32_vm86; text_prefix_size = sizeof(kvm_asm32_vm86) - 1; } } else { sregs.cs.selector = 0; sregs.cs.base = 0; } } else if (text_type == 16) { if (flags & KVM_SETUP_CPL3) { sregs.cs = seg_cs16; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds16; text_prefix = kvm_asm16_cpl3; text_prefix_size = sizeof(kvm_asm16_cpl3) - 1; } else { sregs.cr0 |= X86_CR0_PE; sregs.cs = seg_cs16; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds16; } } else if (text_type == 32) { sregs.cr0 |= X86_CR0_PE; sregs.efer |= X86_EFER_SCE; setup_syscall_msrs(cpufd, X86_SEL_CS32, X86_SEL_CS32_CPL3); setup_32bit_idt(&sregs, host_mem, guest_mem); if (flags & KVM_SETUP_SMM) { sregs.cs = seg_cs32; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32; *(host_mem + X86_ADDR_TEXT) = 0xf4; host_text = host_mem + 0x8000; ioctl(cpufd, KVM_SMI, 0); } else if (flags & KVM_SETUP_PAGING) { sregs.cs = seg_cs32; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32; uint64_t pd_addr = guest_mem + X86_ADDR_PD; uint64_t* pd = (uint64_t*)(host_mem + X86_ADDR_PD); pd[0] = X86_PDE32_PRESENT | X86_PDE32_RW | X86_PDE32_USER | X86_PDE32_PS; sregs.cr3 = pd_addr; sregs.cr4 |= X86_CR4_PSE; text_prefix = kvm_asm32_paged; text_prefix_size = sizeof(kvm_asm32_paged) - 1; } else if (flags & KVM_SETUP_CPL3) { sregs.cs = seg_cs32_cpl3; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32_cpl3; } else { sregs.cs = seg_cs32; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32; } } else { sregs.efer |= X86_EFER_LME | X86_EFER_SCE; sregs.cr0 |= X86_CR0_PE; setup_syscall_msrs(cpufd, X86_SEL_CS64, X86_SEL_CS64_CPL3); setup_64bit_idt(&sregs, host_mem, guest_mem); sregs.cs = seg_cs32; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32; uint64_t pml4_addr = guest_mem + X86_ADDR_PML4; uint64_t* pml4 = (uint64_t*)(host_mem + X86_ADDR_PML4); uint64_t pdpt_addr = guest_mem + X86_ADDR_PDP; uint64_t* pdpt = (uint64_t*)(host_mem + X86_ADDR_PDP); uint64_t pd_addr = guest_mem + X86_ADDR_PD; uint64_t* pd = (uint64_t*)(host_mem + X86_ADDR_PD); pml4[0] = X86_PDE64_PRESENT | X86_PDE64_RW | X86_PDE64_USER | pdpt_addr; pdpt[0] = X86_PDE64_PRESENT | X86_PDE64_RW | X86_PDE64_USER | pd_addr; pd[0] = X86_PDE64_PRESENT | X86_PDE64_RW | X86_PDE64_USER | X86_PDE64_PS; sregs.cr3 = pml4_addr; sregs.cr4 |= X86_CR4_PAE; if (flags & KVM_SETUP_VM) { sregs.cr0 |= X86_CR0_NE; *((uint64_t*)(host_mem + X86_ADDR_VAR_VMXON_PTR)) = X86_ADDR_VAR_VMXON; *((uint64_t*)(host_mem + X86_ADDR_VAR_VMCS_PTR)) = X86_ADDR_VAR_VMCS; memcpy(host_mem + X86_ADDR_VAR_VMEXIT_CODE, kvm_asm64_vm_exit, sizeof(kvm_asm64_vm_exit) - 1); *((uint64_t*)(host_mem + X86_ADDR_VAR_VMEXIT_PTR)) = X86_ADDR_VAR_VMEXIT_CODE; text_prefix = kvm_asm64_init_vm; text_prefix_size = sizeof(kvm_asm64_init_vm) - 1; } else if (flags & KVM_SETUP_CPL3) { text_prefix = kvm_asm64_cpl3; text_prefix_size = sizeof(kvm_asm64_cpl3) - 1; } else { text_prefix = kvm_asm64_enable_long; text_prefix_size = sizeof(kvm_asm64_enable_long) - 1; } } struct tss16 tss16; memset(&tss16, 0, sizeof(tss16)); tss16.ss0 = tss16.ss1 = tss16.ss2 = X86_SEL_DS16; tss16.sp0 = tss16.sp1 = tss16.sp2 = X86_ADDR_STACK0; tss16.ip = X86_ADDR_VAR_USER_CODE2; tss16.flags = (1 << 1); tss16.cs = X86_SEL_CS16; tss16.es = tss16.ds = tss16.ss = X86_SEL_DS16; tss16.ldt = X86_SEL_LDT; struct tss16* tss16_addr = (struct tss16*)(host_mem + seg_tss16_2.base); memcpy(tss16_addr, &tss16, sizeof(tss16)); memset(&tss16, 0, sizeof(tss16)); tss16.ss0 = tss16.ss1 = tss16.ss2 = X86_SEL_DS16; tss16.sp0 = tss16.sp1 = tss16.sp2 = X86_ADDR_STACK0; tss16.ip = X86_ADDR_VAR_USER_CODE2; tss16.flags = (1 << 1); tss16.cs = X86_SEL_CS16_CPL3; tss16.es = tss16.ds = tss16.ss = X86_SEL_DS16_CPL3; tss16.ldt = X86_SEL_LDT; struct tss16* tss16_cpl3_addr = (struct tss16*)(host_mem + seg_tss16_cpl3.base); memcpy(tss16_cpl3_addr, &tss16, sizeof(tss16)); struct tss32 tss32; memset(&tss32, 0, sizeof(tss32)); tss32.ss0 = tss32.ss1 = tss32.ss2 = X86_SEL_DS32; tss32.sp0 = tss32.sp1 = tss32.sp2 = X86_ADDR_STACK0; tss32.ip = X86_ADDR_VAR_USER_CODE; tss32.flags = (1 << 1) | (1 << 17); tss32.ldt = X86_SEL_LDT; tss32.cr3 = sregs.cr3; tss32.io_bitmap = offsetof(struct tss32, io_bitmap); struct tss32* tss32_addr = (struct tss32*)(host_mem + seg_tss32_vm86.base); memcpy(tss32_addr, &tss32, sizeof(tss32)); memset(&tss32, 0, sizeof(tss32)); tss32.ss0 = tss32.ss1 = tss32.ss2 = X86_SEL_DS32; tss32.sp0 = tss32.sp1 = tss32.sp2 = X86_ADDR_STACK0; tss32.ip = X86_ADDR_VAR_USER_CODE; tss32.flags = (1 << 1); tss32.cr3 = sregs.cr3; tss32.es = tss32.ds = tss32.ss = tss32.gs = tss32.fs = X86_SEL_DS32; tss32.cs = X86_SEL_CS32; tss32.ldt = X86_SEL_LDT; tss32.cr3 = sregs.cr3; tss32.io_bitmap = offsetof(struct tss32, io_bitmap); struct tss32* tss32_cpl3_addr = (struct tss32*)(host_mem + seg_tss32_2.base); memcpy(tss32_cpl3_addr, &tss32, sizeof(tss32)); struct tss64 tss64; memset(&tss64, 0, sizeof(tss64)); tss64.rsp[0] = X86_ADDR_STACK0; tss64.rsp[1] = X86_ADDR_STACK0; tss64.rsp[2] = X86_ADDR_STACK0; tss64.io_bitmap = offsetof(struct tss64, io_bitmap); struct tss64* tss64_addr = (struct tss64*)(host_mem + seg_tss64.base); memcpy(tss64_addr, &tss64, sizeof(tss64)); memset(&tss64, 0, sizeof(tss64)); tss64.rsp[0] = X86_ADDR_STACK0; tss64.rsp[1] = X86_ADDR_STACK0; tss64.rsp[2] = X86_ADDR_STACK0; tss64.io_bitmap = offsetof(struct tss64, io_bitmap); struct tss64* tss64_cpl3_addr = (struct tss64*)(host_mem + seg_tss64_cpl3.base); memcpy(tss64_cpl3_addr, &tss64, sizeof(tss64)); if (text_size > 1000) text_size = 1000; if (text_prefix) { memcpy(host_text, text_prefix, text_prefix_size); void* patch = memmem(host_text, text_prefix_size, "\xde\xc0\xad\x0b", 4); if (patch) *((uint32_t*)patch) = guest_mem + X86_ADDR_TEXT + ((char*)patch - host_text) + 6; uint16_t magic = X86_PREFIX_SIZE; patch = memmem(host_text, text_prefix_size, &magic, sizeof(magic)); if (patch) *((uint16_t*)patch) = guest_mem + X86_ADDR_TEXT + text_prefix_size; } memcpy((void*)(host_text + text_prefix_size), text, text_size); *(host_text + text_prefix_size + text_size) = 0xf4; memcpy(host_mem + X86_ADDR_VAR_USER_CODE, text, text_size); *(host_mem + X86_ADDR_VAR_USER_CODE + text_size) = 0xf4; *(host_mem + X86_ADDR_VAR_HLT) = 0xf4; memcpy(host_mem + X86_ADDR_VAR_SYSRET, "\x0f\x07\xf4", 3); memcpy(host_mem + X86_ADDR_VAR_SYSEXIT, "\x0f\x35\xf4", 3); *(uint64_t*)(host_mem + X86_ADDR_VAR_VMWRITE_FLD) = 0; *(uint64_t*)(host_mem + X86_ADDR_VAR_VMWRITE_VAL) = 0; if (opt_count > 2) opt_count = 2; for (uintptr_t i = 0; i < opt_count; i++) { uint64_t typ = opt_array_ptr[i].typ; uint64_t val = opt_array_ptr[i].val; switch (typ % 9) { case 0: sregs.cr0 ^= val & (X86_CR0_MP | X86_CR0_EM | X86_CR0_ET | X86_CR0_NE | X86_CR0_WP | X86_CR0_AM | X86_CR0_NW | X86_CR0_CD); break; case 1: sregs.cr4 ^= val & (X86_CR4_VME | X86_CR4_PVI | X86_CR4_TSD | X86_CR4_DE | X86_CR4_MCE | X86_CR4_PGE | X86_CR4_PCE | X86_CR4_OSFXSR | X86_CR4_OSXMMEXCPT | X86_CR4_UMIP | X86_CR4_VMXE | X86_CR4_SMXE | X86_CR4_FSGSBASE | X86_CR4_PCIDE | X86_CR4_OSXSAVE | X86_CR4_SMEP | X86_CR4_SMAP | X86_CR4_PKE); break; case 2: sregs.efer ^= val & (X86_EFER_SCE | X86_EFER_NXE | X86_EFER_SVME | X86_EFER_LMSLE | X86_EFER_FFXSR | X86_EFER_TCE); break; case 3: val &= ((1 << 8) | (1 << 9) | (1 << 10) | (1 << 12) | (1 << 13) | (1 << 14) | (1 << 15) | (1 << 18) | (1 << 19) | (1 << 20) | (1 << 21)); regs.rflags ^= val; tss16_addr->flags ^= val; tss16_cpl3_addr->flags ^= val; tss32_addr->flags ^= val; tss32_cpl3_addr->flags ^= val; break; case 4: seg_cs16.type = val & 0xf; seg_cs32.type = val & 0xf; seg_cs64.type = val & 0xf; break; case 5: seg_cs16_cpl3.type = val & 0xf; seg_cs32_cpl3.type = val & 0xf; seg_cs64_cpl3.type = val & 0xf; break; case 6: seg_ds16.type = val & 0xf; seg_ds32.type = val & 0xf; seg_ds64.type = val & 0xf; break; case 7: seg_ds16_cpl3.type = val & 0xf; seg_ds32_cpl3.type = val & 0xf; seg_ds64_cpl3.type = val & 0xf; break; case 8: *(uint64_t*)(host_mem + X86_ADDR_VAR_VMWRITE_FLD) = (val & 0xffff); *(uint64_t*)(host_mem + X86_ADDR_VAR_VMWRITE_VAL) = (val >> 16); break; default: exit(1); } } regs.rflags |= 2; fill_segment_descriptor(gdt, ldt, &seg_ldt); fill_segment_descriptor(gdt, ldt, &seg_cs16); fill_segment_descriptor(gdt, ldt, &seg_ds16); fill_segment_descriptor(gdt, ldt, &seg_cs16_cpl3); fill_segment_descriptor(gdt, ldt, &seg_ds16_cpl3); fill_segment_descriptor(gdt, ldt, &seg_cs32); fill_segment_descriptor(gdt, ldt, &seg_ds32); fill_segment_descriptor(gdt, ldt, &seg_cs32_cpl3); fill_segment_descriptor(gdt, ldt, &seg_ds32_cpl3); fill_segment_descriptor(gdt, ldt, &seg_cs64); fill_segment_descriptor(gdt, ldt, &seg_ds64); fill_segment_descriptor(gdt, ldt, &seg_cs64_cpl3); fill_segment_descriptor(gdt, ldt, &seg_ds64_cpl3); fill_segment_descriptor(gdt, ldt, &seg_tss32); fill_segment_descriptor(gdt, ldt, &seg_tss32_2); fill_segment_descriptor(gdt, ldt, &seg_tss32_cpl3); fill_segment_descriptor(gdt, ldt, &seg_tss32_vm86); fill_segment_descriptor(gdt, ldt, &seg_tss16); fill_segment_descriptor(gdt, ldt, &seg_tss16_2); fill_segment_descriptor(gdt, ldt, &seg_tss16_cpl3); fill_segment_descriptor_dword(gdt, ldt, &seg_tss64); fill_segment_descriptor_dword(gdt, ldt, &seg_tss64_cpl3); fill_segment_descriptor(gdt, ldt, &seg_cgate16); fill_segment_descriptor(gdt, ldt, &seg_tgate16); fill_segment_descriptor(gdt, ldt, &seg_cgate32); fill_segment_descriptor(gdt, ldt, &seg_tgate32); fill_segment_descriptor_dword(gdt, ldt, &seg_cgate64); if (ioctl(cpufd, KVM_SET_SREGS, &sregs)) return -1; if (ioctl(cpufd, KVM_SET_REGS, ®s)) return -1; return 0; } #define RFLAGS_1_BIT (1ULL << 1) #define RFLAGS_IF_BIT (1ULL << 9) static void reset_cpu_regs(int cpufd, int cpu_id, size_t text_size) { struct kvm_regs regs; memset(®s, 0, sizeof(regs)); regs.rflags |= RFLAGS_1_BIT | RFLAGS_IF_BIT; regs.rip = executor_fn_guest_addr(guest_main); regs.rsp = X86_SYZOS_ADDR_STACK0; regs.rdi = text_size; regs.rsi = cpu_id; ioctl(cpufd, KVM_SET_REGS, ®s); } static void install_user_code(struct kvm_syz_vm* vm, int cpufd, int cpu_id, const void* text, size_t text_size) { if ((cpu_id < 0) || (cpu_id >= KVM_MAX_VCPU)) return; if (text_size > KVM_PAGE_SIZE) text_size = KVM_PAGE_SIZE; void* target = (void*)((uint64_t)vm->user_text + (KVM_PAGE_SIZE * cpu_id)); memcpy(target, text, text_size); setup_gdt_ldt_pg(vm, cpufd); setup_cpuid(cpufd); reset_cpu_regs(cpufd, cpu_id, text_size); } struct addr_size { void* addr; size_t size; }; static struct addr_size alloc_guest_mem(struct addr_size* free, size_t size) { struct addr_size ret = {.addr = NULL, .size = 0}; if (free->size < size) return ret; ret.addr = free->addr; ret.size = size; free->addr = (void*)((char*)free->addr + size); free->size -= size; return ret; } static void vm_set_user_memory_region(int vmfd, uint32_t slot, uint32_t flags, uint64_t guest_phys_addr, uint64_t memory_size, uint64_t userspace_addr) { struct kvm_userspace_memory_region memreg; memreg.slot = slot; memreg.flags = flags; memreg.guest_phys_addr = guest_phys_addr; memreg.memory_size = memory_size; memreg.userspace_addr = userspace_addr; ioctl(vmfd, KVM_SET_USER_MEMORY_REGION, &memreg); } static void install_syzos_code(void* host_mem, size_t mem_size) { size_t size = (char*)&__stop_guest - (char*)&__start_guest; if (size > mem_size) exit(1); memcpy(host_mem, &__start_guest, size); } static void setup_vm(int vmfd, struct kvm_syz_vm* vm) { struct addr_size allocator = {.addr = vm->host_mem, .size = vm->total_pages * KVM_PAGE_SIZE}; int slot = 0; for (size_t i = 0; i < sizeof(syzos_mem_regions) / sizeof(syzos_mem_regions[0]); i++) { const struct mem_region* r = &syzos_mem_regions[i]; if (r->flags & MEM_REGION_FLAG_NO_HOST_MEM) continue; struct addr_size next = alloc_guest_mem(&allocator, r->pages * KVM_PAGE_SIZE); uint32_t flags = 0; if (r->flags & MEM_REGION_FLAG_DIRTY_LOG) flags |= KVM_MEM_LOG_DIRTY_PAGES; if (r->flags & MEM_REGION_FLAG_READONLY) flags |= KVM_MEM_READONLY; if (r->flags & MEM_REGION_FLAG_USER_CODE) vm->user_text = next.addr; if (r->flags & MEM_REGION_FLAG_GPA0) vm->gpa0_mem = next.addr; if (r->flags & MEM_REGION_FLAG_EXECUTOR_CODE) install_syzos_code(next.addr, next.size); vm_set_user_memory_region(vmfd, slot++, flags, r->gpa, next.size, (uintptr_t)next.addr); } struct addr_size next = alloc_guest_mem(&allocator, allocator.size); vm_set_user_memory_region(vmfd, slot++, 0, X86_SYZOS_ADDR_UNUSED, next.size, (uintptr_t)next.addr); } static long syz_kvm_setup_syzos_vm(volatile long a0, volatile long a1) { const int vmfd = a0; void* host_mem = (void*)a1; struct kvm_syz_vm* ret = (struct kvm_syz_vm*)host_mem; ret->host_mem = (void*)((uint64_t)host_mem + KVM_PAGE_SIZE); ret->total_pages = KVM_GUEST_PAGES - 1; setup_vm(vmfd, ret); ret->vmfd = vmfd; ret->next_cpu_id = 0; return (long)ret; } static long syz_kvm_add_vcpu(volatile long a0, volatile long a1) { struct kvm_syz_vm* vm = (struct kvm_syz_vm*)a0; struct kvm_text* utext = (struct kvm_text*)a1; const void* text = utext->text; size_t text_size = utext->size; if (!vm) { errno = EINVAL; return -1; } if (vm->next_cpu_id == KVM_MAX_VCPU) { errno = ENOMEM; return -1; } int cpu_id = vm->next_cpu_id; int cpufd = ioctl(vm->vmfd, KVM_CREATE_VCPU, cpu_id); if (cpufd == -1) return -1; vm->next_cpu_id++; install_user_code(vm, cpufd, cpu_id, text, text_size); return cpufd; } static void setup_gadgetfs(); static void setup_binderfs(); static void setup_fusectl(); static void sandbox_common_mount_tmpfs(void) { write_file("/proc/sys/fs/mount-max", "100000"); if (mkdir("./syz-tmp", 0777)) exit(1); if (mount("", "./syz-tmp", "tmpfs", 0, NULL)) exit(1); if (mkdir("./syz-tmp/newroot", 0777)) exit(1); if (mkdir("./syz-tmp/newroot/dev", 0700)) exit(1); unsigned bind_mount_flags = MS_BIND | MS_REC | MS_PRIVATE; if (mount("/dev", "./syz-tmp/newroot/dev", NULL, bind_mount_flags, NULL)) exit(1); if (mkdir("./syz-tmp/newroot/proc", 0700)) exit(1); if (mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL)) exit(1); if (mkdir("./syz-tmp/newroot/selinux", 0700)) exit(1); const char* selinux_path = "./syz-tmp/newroot/selinux"; if (mount("/selinux", selinux_path, NULL, bind_mount_flags, NULL)) { if (errno != ENOENT) exit(1); if (mount("/sys/fs/selinux", selinux_path, NULL, bind_mount_flags, NULL) && errno != ENOENT) exit(1); } if (mkdir("./syz-tmp/newroot/sys", 0700)) exit(1); if (mount("/sys", "./syz-tmp/newroot/sys", 0, bind_mount_flags, NULL)) exit(1); if (mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, bind_mount_flags, NULL) && errno != ENOENT) exit(1); if (mount("/sys/fs/smackfs", "./syz-tmp/newroot/sys/fs/smackfs", NULL, bind_mount_flags, NULL) && errno != ENOENT) exit(1); if (mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, bind_mount_flags, NULL) && errno != ENOENT) exit(1); if (mkdir("./syz-tmp/newroot/syz-inputs", 0700)) exit(1); if (mount("/syz-inputs", "./syz-tmp/newroot/syz-inputs", NULL, bind_mount_flags | MS_RDONLY, NULL) && errno != ENOENT) exit(1); if (mkdir("./syz-tmp/pivot", 0777)) exit(1); if (syscall(SYS_pivot_root, "./syz-tmp", "./syz-tmp/pivot")) { if (chdir("./syz-tmp")) exit(1); } else { if (chdir("/")) exit(1); if (umount2("./pivot", MNT_DETACH)) exit(1); } if (chroot("./newroot")) exit(1); if (chdir("/")) exit(1); setup_gadgetfs(); setup_binderfs(); setup_fusectl(); } static void setup_gadgetfs() { if (mkdir("/dev/gadgetfs", 0777)) { } if (mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL)) { } } static void setup_fusectl() { if (mount(0, "/sys/fs/fuse/connections", "fusectl", 0, 0)) { } } static void setup_binderfs() { if (mkdir("/dev/binderfs", 0777)) { } if (mount("binder", "/dev/binderfs", "binder", 0, NULL)) { } } static void loop(); static void sandbox_common() { prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0); if (getppid() == 1) exit(1); int netns = open("/proc/self/ns/net", O_RDONLY); if (netns == -1) exit(1); if (dup2(netns, kInitNetNsFd) < 0) exit(1); close(netns); struct rlimit rlim; rlim.rlim_cur = rlim.rlim_max = (200 << 20); setrlimit(RLIMIT_AS, &rlim); rlim.rlim_cur = rlim.rlim_max = 32 << 20; setrlimit(RLIMIT_MEMLOCK, &rlim); rlim.rlim_cur = rlim.rlim_max = 136 << 20; setrlimit(RLIMIT_FSIZE, &rlim); rlim.rlim_cur = rlim.rlim_max = 1 << 20; setrlimit(RLIMIT_STACK, &rlim); rlim.rlim_cur = rlim.rlim_max = 128 << 20; setrlimit(RLIMIT_CORE, &rlim); rlim.rlim_cur = rlim.rlim_max = 256; setrlimit(RLIMIT_NOFILE, &rlim); if (unshare(CLONE_NEWNS)) { } if (mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, NULL)) { } if (unshare(CLONE_NEWIPC)) { } if (unshare(0x02000000)) { } if (unshare(CLONE_NEWUTS)) { } if (unshare(CLONE_SYSVSEM)) { } typedef struct { const char* name; const char* value; } sysctl_t; static const sysctl_t sysctls[] = { {"/proc/sys/kernel/shmmax", "16777216"}, {"/proc/sys/kernel/shmall", "536870912"}, {"/proc/sys/kernel/shmmni", "1024"}, {"/proc/sys/kernel/msgmax", "8192"}, {"/proc/sys/kernel/msgmni", "1024"}, {"/proc/sys/kernel/msgmnb", "1024"}, {"/proc/sys/kernel/sem", "1024 1048576 500 1024"}, }; unsigned i; for (i = 0; i < sizeof(sysctls) / sizeof(sysctls[0]); i++) write_file(sysctls[i].name, sysctls[i].value); } static int wait_for_loop(int pid) { if (pid < 0) exit(1); int status = 0; while (waitpid(-1, &status, __WALL) != pid) { } return WEXITSTATUS(status); } static void drop_caps(void) { struct __user_cap_header_struct cap_hdr = {}; struct __user_cap_data_struct cap_data[2] = {}; cap_hdr.version = _LINUX_CAPABILITY_VERSION_3; cap_hdr.pid = getpid(); if (syscall(SYS_capget, &cap_hdr, &cap_data)) exit(1); const int drop = (1 << CAP_SYS_PTRACE) | (1 << CAP_SYS_NICE); cap_data[0].effective &= ~drop; cap_data[0].permitted &= ~drop; cap_data[0].inheritable &= ~drop; if (syscall(SYS_capset, &cap_hdr, &cap_data)) exit(1); } static int do_sandbox_none(void) { if (unshare(CLONE_NEWPID)) { } int pid = fork(); if (pid != 0) return wait_for_loop(pid); sandbox_common(); drop_caps(); if (unshare(CLONE_NEWNET)) { } write_file("/proc/sys/net/ipv4/ping_group_range", "0 65535"); sandbox_common_mount_tmpfs(); loop(); exit(1); } #define FS_IOC_SETFLAGS _IOW('f', 2, long) static void remove_dir(const char* dir) { int iter = 0; DIR* dp = 0; const int umount_flags = MNT_FORCE | UMOUNT_NOFOLLOW; retry: while (umount2(dir, umount_flags) == 0) { } dp = opendir(dir); if (dp == NULL) { if (errno == EMFILE) { exit(1); } exit(1); } struct dirent* ep = 0; while ((ep = readdir(dp))) { if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0) continue; char filename[FILENAME_MAX]; snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name); while (umount2(filename, umount_flags) == 0) { } struct stat st; if (lstat(filename, &st)) exit(1); if (S_ISDIR(st.st_mode)) { remove_dir(filename); continue; } int i; for (i = 0;; i++) { if (unlink(filename) == 0) break; if (errno == EPERM) { int fd = open(filename, O_RDONLY); if (fd != -1) { long flags = 0; if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) { } close(fd); continue; } } if (errno == EROFS) { break; } if (errno != EBUSY || i > 100) exit(1); if (umount2(filename, umount_flags)) exit(1); } } closedir(dp); for (int i = 0;; i++) { if (rmdir(dir) == 0) break; if (i < 100) { if (errno == EPERM) { int fd = open(dir, O_RDONLY); if (fd != -1) { long flags = 0; if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) { } close(fd); continue; } } if (errno == EROFS) { break; } if (errno == EBUSY) { if (umount2(dir, umount_flags)) exit(1); continue; } if (errno == ENOTEMPTY) { if (iter < 100) { iter++; goto retry; } } } exit(1); } } static int inject_fault(int nth) { int fd; fd = open("/proc/thread-self/fail-nth", O_RDWR); if (fd == -1) exit(1); char buf[16]; sprintf(buf, "%d", nth); if (write(fd, buf, strlen(buf)) != (ssize_t)strlen(buf)) exit(1); return fd; } static void kill_and_wait(int pid, int* status) { kill(-pid, SIGKILL); kill(pid, SIGKILL); for (int i = 0; i < 100; i++) { if (waitpid(-1, status, WNOHANG | __WALL) == pid) return; usleep(1000); } DIR* dir = opendir("/sys/fs/fuse/connections"); if (dir) { for (;;) { struct dirent* ent = readdir(dir); if (!ent) break; if (strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0) continue; char abort[300]; snprintf(abort, sizeof(abort), "/sys/fs/fuse/connections/%s/abort", ent->d_name); int fd = open(abort, O_WRONLY); if (fd == -1) { continue; } if (write(fd, abort, 1) < 0) { } close(fd); } closedir(dir); } else { } while (waitpid(-1, status, __WALL) != pid) { } } static void reset_loop() { char buf[64]; snprintf(buf, sizeof(buf), "/dev/loop%llu", procid); int loopfd = open(buf, O_RDWR); if (loopfd != -1) { ioctl(loopfd, LOOP_CLR_FD, 0); close(loopfd); } } static void setup_test() { prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0); setpgrp(); write_file("/proc/self/oom_score_adj", "1000"); if (symlink("/dev/binderfs", "./binderfs")) { } } static const char* setup_fault() { int fd = open("/proc/self/make-it-fail", O_WRONLY); if (fd == -1) return "CONFIG_FAULT_INJECTION is not enabled"; close(fd); fd = open("/proc/thread-self/fail-nth", O_WRONLY); if (fd == -1) return "kernel does not have systematic fault injection support"; close(fd); static struct { const char* file; const char* val; bool fatal; } files[] = { {"/sys/kernel/debug/failslab/ignore-gfp-wait", "N", true}, {"/sys/kernel/debug/fail_futex/ignore-private", "N", false}, {"/sys/kernel/debug/fail_page_alloc/ignore-gfp-highmem", "N", false}, {"/sys/kernel/debug/fail_page_alloc/ignore-gfp-wait", "N", false}, {"/sys/kernel/debug/fail_page_alloc/min-order", "0", false}, }; unsigned i; for (i = 0; i < sizeof(files) / sizeof(files[0]); i++) { if (!write_file(files[i].file, files[i].val)) { if (files[i].fatal) return "failed to write fault injection file"; } } return NULL; } #define FUSE_MIN_READ_BUFFER 8192 enum fuse_opcode { FUSE_LOOKUP = 1, FUSE_FORGET = 2, FUSE_GETATTR = 3, FUSE_SETATTR = 4, FUSE_READLINK = 5, FUSE_SYMLINK = 6, FUSE_MKNOD = 8, FUSE_MKDIR = 9, FUSE_UNLINK = 10, FUSE_RMDIR = 11, FUSE_RENAME = 12, FUSE_LINK = 13, FUSE_OPEN = 14, FUSE_READ = 15, FUSE_WRITE = 16, FUSE_STATFS = 17, FUSE_RELEASE = 18, FUSE_FSYNC = 20, FUSE_SETXATTR = 21, FUSE_GETXATTR = 22, FUSE_LISTXATTR = 23, FUSE_REMOVEXATTR = 24, FUSE_FLUSH = 25, FUSE_INIT = 26, FUSE_OPENDIR = 27, FUSE_READDIR = 28, FUSE_RELEASEDIR = 29, FUSE_FSYNCDIR = 30, FUSE_GETLK = 31, FUSE_SETLK = 32, FUSE_SETLKW = 33, FUSE_ACCESS = 34, FUSE_CREATE = 35, FUSE_INTERRUPT = 36, FUSE_BMAP = 37, FUSE_DESTROY = 38, FUSE_IOCTL = 39, FUSE_POLL = 40, FUSE_NOTIFY_REPLY = 41, FUSE_BATCH_FORGET = 42, FUSE_FALLOCATE = 43, FUSE_READDIRPLUS = 44, FUSE_RENAME2 = 45, FUSE_LSEEK = 46, FUSE_COPY_FILE_RANGE = 47, FUSE_SETUPMAPPING = 48, FUSE_REMOVEMAPPING = 49, FUSE_SYNCFS = 50, FUSE_TMPFILE = 51, FUSE_STATX = 52, CUSE_INIT = 4096, CUSE_INIT_BSWAP_RESERVED = 1048576, FUSE_INIT_BSWAP_RESERVED = 436207616, }; struct fuse_in_header { uint32_t len; uint32_t opcode; uint64_t unique; uint64_t nodeid; uint32_t uid; uint32_t gid; uint32_t pid; uint32_t padding; }; struct fuse_out_header { uint32_t len; uint32_t error; uint64_t unique; }; struct syz_fuse_req_out { struct fuse_out_header* init; struct fuse_out_header* lseek; struct fuse_out_header* bmap; struct fuse_out_header* poll; struct fuse_out_header* getxattr; struct fuse_out_header* lk; struct fuse_out_header* statfs; struct fuse_out_header* write; struct fuse_out_header* read; struct fuse_out_header* open; struct fuse_out_header* attr; struct fuse_out_header* entry; struct fuse_out_header* dirent; struct fuse_out_header* direntplus; struct fuse_out_header* create_open; struct fuse_out_header* ioctl; struct fuse_out_header* statx; }; static int fuse_send_response(int fd, const struct fuse_in_header* in_hdr, struct fuse_out_header* out_hdr) { if (!out_hdr) { return -1; } out_hdr->unique = in_hdr->unique; if (write(fd, out_hdr, out_hdr->len) == -1) { return -1; } return 0; } static volatile long syz_fuse_handle_req(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { struct syz_fuse_req_out* req_out = (struct syz_fuse_req_out*)a3; struct fuse_out_header* out_hdr = NULL; char* buf = (char*)a1; int buf_len = (int)a2; int fd = (int)a0; if (!req_out) { return -1; } if (buf_len < FUSE_MIN_READ_BUFFER) { return -1; } int ret = read(fd, buf, buf_len); if (ret == -1) { return -1; } if ((size_t)ret < sizeof(struct fuse_in_header)) { return -1; } const struct fuse_in_header* in_hdr = (const struct fuse_in_header*)buf; if (in_hdr->len > (uint32_t)ret) { return -1; } switch (in_hdr->opcode) { case FUSE_GETATTR: case FUSE_SETATTR: out_hdr = req_out->attr; break; case FUSE_LOOKUP: case FUSE_SYMLINK: case FUSE_LINK: case FUSE_MKNOD: case FUSE_MKDIR: out_hdr = req_out->entry; break; case FUSE_OPEN: case FUSE_OPENDIR: out_hdr = req_out->open; break; case FUSE_STATFS: out_hdr = req_out->statfs; break; case FUSE_RMDIR: case FUSE_RENAME: case FUSE_RENAME2: case FUSE_FALLOCATE: case FUSE_SETXATTR: case FUSE_REMOVEXATTR: case FUSE_FSYNCDIR: case FUSE_FSYNC: case FUSE_SETLKW: case FUSE_SETLK: case FUSE_ACCESS: case FUSE_FLUSH: case FUSE_RELEASE: case FUSE_RELEASEDIR: case FUSE_UNLINK: case FUSE_DESTROY: out_hdr = req_out->init; if (!out_hdr) { return -1; } out_hdr->len = sizeof(struct fuse_out_header); break; case FUSE_READ: out_hdr = req_out->read; break; case FUSE_READDIR: out_hdr = req_out->dirent; break; case FUSE_READDIRPLUS: out_hdr = req_out->direntplus; break; case FUSE_INIT: out_hdr = req_out->init; break; case FUSE_LSEEK: out_hdr = req_out->lseek; break; case FUSE_GETLK: out_hdr = req_out->lk; break; case FUSE_BMAP: out_hdr = req_out->bmap; break; case FUSE_POLL: out_hdr = req_out->poll; break; case FUSE_GETXATTR: case FUSE_LISTXATTR: out_hdr = req_out->getxattr; break; case FUSE_WRITE: case FUSE_COPY_FILE_RANGE: out_hdr = req_out->write; break; case FUSE_FORGET: case FUSE_BATCH_FORGET: return 0; case FUSE_CREATE: out_hdr = req_out->create_open; break; case FUSE_IOCTL: out_hdr = req_out->ioctl; break; case FUSE_STATX: out_hdr = req_out->statx; break; default: return -1; } return fuse_send_response(fd, in_hdr, out_hdr); } #define HWSIM_ATTR_RX_RATE 5 #define HWSIM_ATTR_SIGNAL 6 #define HWSIM_ATTR_ADDR_RECEIVER 1 #define HWSIM_ATTR_FRAME 3 #define WIFI_MAX_INJECT_LEN 2048 static int hwsim_register_socket(struct nlmsg* nlmsg, int sock, int hwsim_family) { struct genlmsghdr genlhdr; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = HWSIM_CMD_REGISTER; netlink_init(nlmsg, hwsim_family, 0, &genlhdr, sizeof(genlhdr)); int err = netlink_send_ext(nlmsg, sock, 0, NULL, false); if (err < 0) { } return err; } static int hwsim_inject_frame(struct nlmsg* nlmsg, int sock, int hwsim_family, uint8_t* mac_addr, uint8_t* data, int len) { struct genlmsghdr genlhdr; uint32_t rx_rate = WIFI_DEFAULT_RX_RATE; uint32_t signal = WIFI_DEFAULT_SIGNAL; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = HWSIM_CMD_FRAME; netlink_init(nlmsg, hwsim_family, 0, &genlhdr, sizeof(genlhdr)); netlink_attr(nlmsg, HWSIM_ATTR_RX_RATE, &rx_rate, sizeof(rx_rate)); netlink_attr(nlmsg, HWSIM_ATTR_SIGNAL, &signal, sizeof(signal)); netlink_attr(nlmsg, HWSIM_ATTR_ADDR_RECEIVER, mac_addr, ETH_ALEN); netlink_attr(nlmsg, HWSIM_ATTR_FRAME, data, len); int err = netlink_send_ext(nlmsg, sock, 0, NULL, false); if (err < 0) { } return err; } static long syz_80211_inject_frame(volatile long a0, volatile long a1, volatile long a2) { uint8_t* mac_addr = (uint8_t*)a0; uint8_t* buf = (uint8_t*)a1; int buf_len = (int)a2; struct nlmsg tmp_msg; if (buf_len < 0 || buf_len > WIFI_MAX_INJECT_LEN) { return -1; } int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC); if (sock < 0) { return -1; } int hwsim_family_id = netlink_query_family_id(&tmp_msg, sock, "MAC80211_HWSIM", false); if (hwsim_family_id < 0) { close(sock); return -1; } int ret = hwsim_register_socket(&tmp_msg, sock, hwsim_family_id); if (ret < 0) { close(sock); return -1; } ret = hwsim_inject_frame(&tmp_msg, sock, hwsim_family_id, mac_addr, buf, buf_len); close(sock); if (ret < 0) { return -1; } return 0; } #define WIFI_MAX_SSID_LEN 32 #define WIFI_JOIN_IBSS_NO_SCAN 0 #define WIFI_JOIN_IBSS_BG_SCAN 1 #define WIFI_JOIN_IBSS_BG_NO_SCAN 2 static long syz_80211_join_ibss(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { char* interface = (char*)a0; uint8_t* ssid = (uint8_t*)a1; int ssid_len = (int)a2; int mode = (int)a3; struct nlmsg tmp_msg; uint8_t bssid[ETH_ALEN] = WIFI_IBSS_BSSID; if (ssid_len < 0 || ssid_len > WIFI_MAX_SSID_LEN) { return -1; } if (mode < 0 || mode > WIFI_JOIN_IBSS_BG_NO_SCAN) { return -1; } int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC); if (sock < 0) { return -1; } int nl80211_family_id = netlink_query_family_id(&tmp_msg, sock, "nl80211", false); if (nl80211_family_id < 0) { close(sock); return -1; } struct join_ibss_props ibss_props = { .wiphy_freq = WIFI_DEFAULT_FREQUENCY, .wiphy_freq_fixed = (mode == WIFI_JOIN_IBSS_NO_SCAN || mode == WIFI_JOIN_IBSS_BG_NO_SCAN), .mac = bssid, .ssid = ssid, .ssid_len = ssid_len}; int ret = nl80211_setup_ibss_interface(&tmp_msg, sock, nl80211_family_id, interface, &ibss_props, false); close(sock); if (ret < 0) { return -1; } if (mode == WIFI_JOIN_IBSS_NO_SCAN) { ret = await_ifla_operstate(&tmp_msg, interface, IF_OPER_UP, false); if (ret < 0) { return -1; } } return 0; } #define USLEEP_FORKED_CHILD (3 * 50 *1000) static long handle_clone_ret(long ret) { if (ret != 0) { return ret; } usleep(USLEEP_FORKED_CHILD); syscall(__NR_exit, 0); while (1) { } } static long syz_clone(volatile long flags, volatile long stack, volatile long stack_len, volatile long ptid, volatile long ctid, volatile long tls) { long sp = (stack + stack_len) & ~15; long ret = (long)syscall(__NR_clone, flags & ~CLONE_VM, sp, ptid, ctid, tls); return handle_clone_ret(ret); } #define MAX_CLONE_ARGS_BYTES 256 static long syz_clone3(volatile long a0, volatile long a1) { unsigned long copy_size = a1; if (copy_size < sizeof(uint64_t) || copy_size > MAX_CLONE_ARGS_BYTES) return -1; char clone_args[MAX_CLONE_ARGS_BYTES]; memcpy(&clone_args, (void*)a0, copy_size); uint64_t* flags = (uint64_t*)&clone_args; *flags &= ~CLONE_VM; return handle_clone_ret((long)syscall(__NR_clone3, &clone_args, copy_size)); } #define RESERVED_PKEY 15 static long syz_pkey_set(volatile long pkey, volatile long val) { if (pkey == RESERVED_PKEY) { errno = EINVAL; return -1; } uint32_t eax = 0; uint32_t ecx = 0; asm volatile("rdpkru" : "=a"(eax) : "c"(ecx) : "edx"); eax &= ~(3 << ((pkey % 16) * 2)); eax |= (val & 3) << ((pkey % 16) * 2); uint32_t edx = 0; asm volatile("wrpkru" ::"a"(eax), "c"(ecx), "d"(edx)); return 0; } static long syz_pidfd_open(volatile long pid, volatile long flags) { if (pid == 1) { pid = 0; } return syscall(__NR_pidfd_open, pid, flags); } struct thread_t { int created, call; event_t ready, done; }; static struct thread_t threads[16]; static void execute_call(int call); static int running; static void* thr(void* arg) { struct thread_t* th = (struct thread_t*)arg; for (;;) { event_wait(&th->ready); event_reset(&th->ready); execute_call(th->call); __atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED); event_set(&th->done); } return 0; } static void execute_one(void) { if (write(1, "executing program\n", sizeof("executing program\n") - 1)) { } int i, call, thread; for (call = 0; call < 63; call++) { for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0])); thread++) { struct thread_t* th = &threads[thread]; if (!th->created) { th->created = 1; event_init(&th->ready); event_init(&th->done); event_set(&th->done); thread_start(thr, th); } if (!event_isset(&th->done)) continue; event_reset(&th->done); th->call = call; __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED); event_set(&th->ready); if (call == 1) break; event_timedwait(&th->done, 50 + (call == 12 ? 500 : 0) + (call == 54 ? 3000 : 0) + (call == 55 ? 3000 : 0) + (call == 56 ? 3000 : 0) + (call == 57 ? 300 : 0) + (call == 58 ? 300 : 0) + (call == 59 ? 3000 : 0) + (call == 60 ? 300 : 0) + (call == 61 ? 300 : 0)); break; } } for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++) sleep_ms(1); } static void execute_one(void); #define WAIT_FLAGS __WALL static void loop(void) { int iter = 0; for (;; iter++) { char cwdbuf[32]; sprintf(cwdbuf, "./%d", iter); if (mkdir(cwdbuf, 0777)) exit(1); reset_loop(); int pid = fork(); if (pid < 0) exit(1); if (pid == 0) { if (chdir(cwdbuf)) exit(1); setup_test(); execute_one(); exit(0); } int status = 0; uint64_t start = current_time_ms(); for (;;) { sleep_ms(10); if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid) break; if (current_time_ms() - start < 5000) continue; kill_and_wait(pid, &status); break; } remove_dir(cwdbuf); } } uint64_t r[41] = {0xffffffffffffffff, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff}; void execute_call(int call) { intptr_t res = 0; switch (call) { case 0: memcpy((void*)0x200000000000, "/dev/ubi_ctrl\000", 14); inject_fault(1); res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x200000000000ul, /*flags=O_NOCTTY|O_NOATIME|O_DIRECT|O_APPEND|O_RDWR*/0x44502, /*mode=*/0); if (res != -1) r[0] = res; break; case 1: STORE_BY_BITMASK(uint8_t, , 0x200000000140, 0xa, 0, 7); STORE_BY_BITMASK(uint8_t, , 0x200000000140, 1, 7, 1); *(uint32_t*)0x200000000144 = 0xc5; *(uint32_t*)0x200000000148 = 1; *(uint64_t*)0x200000000150 = 0x200000000040; memcpy((void*)0x200000000040, "\xe1\xee\x87\xa8\xf7\x6c\x25\x7b\x75\xc1\x07\x3c\x70\x58\xbe\x82\xfe\x33\x62\xbb\xcc\xa5\x4d\xf5\x20\xd1\xca\x8f\xa9\x1b\x50\x81\x0f\x87\x6d\x1f\xab\x0a\x1c\xc2\x14\xc3\x5f\x4e\x26\x6e\x71\x64\x3d\x8c\x95\x98\x80\x87\xe4\x6a\x87\xc1\xa7\x15\xef\xfe\x06\x16\x9a\xb6\x5f\xa1\x8e\x54\x14\x40\x4f\x30\xc0\x00\x55\x61\x39\x7e\xd1\xd9\x55\x7c\x66\xa9\x94\xb9\x54\xef\xa7\x14\x98\x5a\x2a\xe4\x09\xdf\x81\x11\xfa\x8a\x36\x14\x08\x73\x4d\x15\xb3\x0c\xd9\xab\x3f\xa5\x0e\x08\x8b\x3d\x2b\xaf\xdc\x68\x9e\xa3\xcb\x7e\x52\xa9\xfc\x7f\x5d\x48\xd2\x45\xd4\x09\x7b\xb9\x33\x72\x5b\xd9\xe2\x93\x71\xcd\x77\x80\xb4\xec\x8d\x6e\x2d\xbf\x86\x1a\xad\x04\xd6\x59\x4f\x5e\xbd\x2f\xfa\xb1\xe8\xa6\x8c\x51\x57\xca\xe2\xf4\x6f\x6f\xa3\xae\xac\x0e\x3f\x8b\x7b\x97\x63\x0f\x34\x6b\xc3\x27\x6e\x53\xca\x72\xb4\x17\xf8", 197); syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0xc0185502, /*arg=*/0x200000000140ul); break; case 2: *(uint8_t*)0x200000000180 = 4; *(uint8_t*)0x200000000181 = 9; syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x4002f516, /*arg=*/0x200000000180ul); for (int i = 0; i < 4; i++) { syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x4002f516, /*arg=*/0x200000000180ul); } break; case 3: *(uint32_t*)0x2000000001c0 = -1; syscall(__NR_setsockopt, /*fd=*/r[0], /*level=*/6, /*optname=*/0x13, /*optval=*/0x2000000001c0ul, /*optlen=*/4ul); break; case 4: *(uint32_t*)0x200000000200 = 4; *(uint16_t*)0x200000000208 = 0xa; *(uint16_t*)0x20000000020a = htobe16(0x4e20); *(uint32_t*)0x20000000020c = htobe32(4); *(uint8_t*)0x200000000210 = 0xfc; *(uint8_t*)0x200000000211 = 0; memset((void*)0x200000000212, 0, 13); *(uint8_t*)0x20000000021f = 1; *(uint32_t*)0x200000000220 = 0; *(uint16_t*)0x200000000288 = 0xa; *(uint16_t*)0x20000000028a = htobe16(0x4e21); *(uint32_t*)0x20000000028c = htobe32(1); *(uint8_t*)0x200000000290 = 0xfe; *(uint8_t*)0x200000000291 = 0x80; memset((void*)0x200000000292, 0, 13); *(uint8_t*)0x20000000029f = 0xaa; *(uint32_t*)0x2000000002a0 = 9; syscall(__NR_setsockopt, /*fd=*/r[0], /*level=*/0x29, /*optname=MCAST_BLOCK_SOURCE*/0x2b, /*optval=*/0x200000000200ul, /*optlen=*/0x108ul); break; case 5: *(uint32_t*)0x200000000340 = 0x4b; memcpy((void*)0x200000000344, "\x0c\xbd\x83\x9a\x79\x58\x33\x77\x5d\x88\x69\x41\xba\x50\xa6\x62\xb8\x10\x8f\x94\x6a\xef\xdd\x5c\xb7\xb6\xeb\x3a\x78\xa0\x64\x73\xe5\x82\x89\xee\x95\x41\xad\x35\x45\x8f\xa9\xd6\xb6\x44\xbf\x56\xfd\xbb\xe1\xc4\x40\x04\x3f\x67\x9b\x3a\x03\xcf\x34\xcc\x05\xed\xc7\x36\xad\x84\x88\x52\xc6\x93\xb8\x9b\x55\x1c\xaa\xbf\x8c\xae\xdd\x7f\x8e\xe9\x80\x29\x49\x11\xc0\x2a\xcd\xb1\x10\x5f\x36\xe9\x73\x61\x6e\xb6\x09\x53\x5e\x68\xc8\xaf\xfb\x3c\x93\x5c\x76\x0f\x88\x5f\xa2\xa4\xb4\x83\x8d\x7d\xb0\x09\xe9\x19\xe5\xab\x59\x34\xb3\xb8\x5f\x8f\xf9\xe2\xaf\xc0\xa1\x86\xc9\xdc\xf9\xab\x5c\x9f\x6e\xb4\x56\x20\xdd\xbd\xa7\xe2\xa4\x67\x7a\x1e\x7c\x69\x4b\x3e\x00\xe3\x5a\x16\xd8\xe5\x25\x26\xd1\x35\x3b\xb0\xfd\x60\x7f\xa0\xf0\x7d\x45\x80\x81\x02\xe3\x8c\x66\xb6\xb5\xbf\xe0\x53\x03\x6b\x95\x6a\x96\x70\x1a\x8d\x02\x58\x8e\x7a\x7c\xc1\xf8\x4a\x3c\x0a\x3b\xa7\x80\xd5\xbb\x49\x4e\x86\x01\x75\x98\x9a\xb6\xec\x07\xd1\x35\x33\x71\x5c\xfb\x45\x84\xfd\x2a\x81\x86\xd7\x4b\xb7\x40\x17\x20\x6d\x94\x0f\x25\xfa\x7e\xc2\xde\xbe\x5a\x31\xcf\x5c\x23\x30", 256); syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x41045508, /*arg=*/0x200000000340ul); break; case 6: *(uint64_t*)0x200000000580 = 0x200000000480; *(uint64_t*)0x200000000588 = 0x8000; *(uint32_t*)0x200000000590 = 0x1800; *(uint32_t*)0x200000000594 = 1; *(uint32_t*)0x200000000598 = 3; syscall(__NR_setsockopt, /*fd=*/r[0], /*level=*/0x11b, /*opt=*/4, /*val=*/0x200000000580ul, /*len=*/0x20ul); break; case 7: *(uint64_t*)0x2000000005c0 = 4; syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x127d, /*arg=*/0x2000000005c0ul); break; case 8: *(uint32_t*)0x200000000604 = 0; *(uint32_t*)0x200000000608 = r[0]; *(uint32_t*)0x20000000060c = 0; syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0xc01864c2, /*arg=*/0x200000000600ul); break; case 9: *(uint32_t*)0x2000000006c0 = 0; syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0xc00464c9, /*arg=*/0x2000000006c0ul); break; case 10: memset((void*)0x200000000000, 255, 6); STORE_BY_BITMASK(uint8_t, , 0x200000000040, 0, 0, 2); STORE_BY_BITMASK(uint8_t, , 0x200000000040, 2, 2, 2); STORE_BY_BITMASK(uint8_t, , 0x200000000040, 0xb, 4, 4); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 0, 0, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 1, 1, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 0, 2, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 1, 3, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 1, 4, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 0, 5, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 0, 6, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 1, 7, 1); STORE_BY_BITMASK(uint16_t, , 0x200000000042, 2, 0, 15); STORE_BY_BITMASK(uint16_t, , 0x200000000043, 0, 7, 1); *(uint8_t*)0x200000000044 = 8; *(uint8_t*)0x200000000045 = 2; *(uint8_t*)0x200000000046 = 0x11; *(uint8_t*)0x200000000047 = 0; *(uint8_t*)0x200000000048 = 0; *(uint8_t*)0x200000000049 = 1; *(uint8_t*)0x20000000004a = 8; *(uint8_t*)0x20000000004b = 2; *(uint8_t*)0x20000000004c = 0x11; *(uint8_t*)0x20000000004d = 0; *(uint8_t*)0x20000000004e = 0; *(uint8_t*)0x20000000004f = 0; memset((void*)0x200000000050, 80, 6); STORE_BY_BITMASK(uint16_t, , 0x200000000056, 9, 0, 4); STORE_BY_BITMASK(uint16_t, , 0x200000000056, 0x5bb, 4, 12); STORE_BY_BITMASK(uint8_t, , 0x200000000058, 1, 0, 4); STORE_BY_BITMASK(uint8_t, , 0x200000000058, 1, 4, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000058, 1, 5, 2); STORE_BY_BITMASK(uint8_t, , 0x200000000058, 1, 7, 1); *(uint8_t*)0x200000000059 = 9; STORE_BY_BITMASK(uint16_t, , 0x20000000005a, 0, 0, 1); STORE_BY_BITMASK(uint16_t, , 0x20000000005a, 2, 1, 15); STORE_BY_BITMASK(uint8_t, , 0x20000000005c, 0, 0, 2); STORE_BY_BITMASK(uint8_t, , 0x20000000005c, 0, 2, 2); STORE_BY_BITMASK(uint8_t, , 0x20000000005c, 0, 4, 2); STORE_BY_BITMASK(uint8_t, , 0x20000000005c, 3, 6, 2); STORE_BY_BITMASK(uint8_t, , 0x20000000005d, 0, 0, 1); STORE_BY_BITMASK(uint8_t, , 0x20000000005d, 0, 1, 5); STORE_BY_BITMASK(uint8_t, , 0x20000000005d, 1, 6, 1); STORE_BY_BITMASK(uint8_t, , 0x20000000005d, 0, 7, 1); memcpy((void*)0x20000000005e, "\x05\x5b\xa7\x19\x28\xa7\x9f\x86\x25\x94\x2b\x8e\x22\xa6\x2e\x7d\x0e\xf5\xd2\x6a\xfb\x59\x23\xf0\xa1", 25); syz_80211_inject_frame(/*mac_addr=*/0x200000000000, /*buf=*/0x200000000040, /*buf_len=*/0x37); break; case 11: memcpy((void*)0x200000000080, "wlan0\000", 6); memcpy((void*)0x2000000000c0, "\xf2\x0f\x01\x43\x92\x29\x17\x2e\xc7\x63\x7d\x66\xe2\xf0\x75", 15); syz_80211_join_ibss(/*interface=*/0x200000000080, /*ssid=*/0x2000000000c0, /*ssid_len=*/0xf, /*join_mode=JOIN_IBSS_BG_NO_SCAN*/2); break; case 12: memcpy((void*)0x200000000100, "bpf_lsm_inode_getsecurity\000", 26); syz_btf_id_by_name(/*name=*/0x200000000100); break; case 13: memcpy((void*)0x200000000140, "\xff\x42\x7f\x0e\x46\x59\xab\x58\x93\xd3\xba\xdb\x31\xb3\xb1\xb8\x9d\xa5\x2b\x0f\x3d\x34\x89\xa1\x8a\x58\x37\xba\x6e\x04\xf2\x1c\xf0\x58\x1d\xe7\x94\x6c\x2e\x29\xad\xef\x18\x03\x6a\x10\xce\x36\x12\x50\xa5\x66\x70\x64\xb4\xd4\x56\xc6\x4c\x30\x7d\x63\xcf\xe3\x42\x2c\x3f\xaf\xd4\x50\x31\x5e\x83\x66", 74); memcpy((void*)0x200000000240, "\xb2\x01\xd1\x39\xa4\x34\x4e\x46\x3d\x89\x91\x3b\xee\x9c\x68\xaf\x3f\x34\x09\x0b\x9f\x62\x44\xaf\x88\xc8\xfe\x07\xce\x4f\xfe\x9b\x81\x21\x0d\xa0\xfc\x44\x55\x9d\x98\x5a\xd5\xbb\x1d\xc9\x67\x2c\xe4\xd1\xdf\x55\x4a\xaf\xb7\x80\x53\xf4", 58); res = -1; res = syz_clone(/*flags=CLONE_PIDFD*/0x1000, /*stack=*/0x200000000140, /*stack_len=*/0x4a, /*parentid=*/0x2000000001c0, /*childtid=*/0x200000000200, /*tls=*/0x200000000240); if (res != -1) r[1] = res; break; case 14: *(uint64_t*)0x200000000440 = 0x100400; *(uint64_t*)0x200000000448 = 0x200000000280; *(uint64_t*)0x200000000450 = 0x2000000002c0; *(uint64_t*)0x200000000458 = 0x200000000300; *(uint32_t*)0x200000000460 = 0x2a; *(uint64_t*)0x200000000468 = 0x200000000340; *(uint64_t*)0x200000000470 = 0x15; *(uint64_t*)0x200000000478 = 0x200000000380; *(uint64_t*)0x200000000480 = 0x200000000400; *(uint32_t*)0x200000000400 = r[1]; *(uint64_t*)0x200000000488 = 1; *(uint32_t*)0x200000000490 = -1; res = -1; res = syz_clone3(/*args=*/0x200000000440, /*size=*/0x58); if (res != -1) { r[2] = res; r[3] = *(uint32_t*)0x200000000280; r[4] = *(uint32_t*)0x2000000002c0; r[5] = *(uint32_t*)0x200000000300; } break; case 15: memcpy((void*)0x2000000004c0, "./file0\000", 8); syz_create_resource(/*file=*/0x2000000004c0); break; case 16: memcpy((void*)0x200000000740, "/dev/cuse\000", 10); res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x200000000740ul, /*flags=*/2, /*mode=*/0); if (res != -1) r[6] = res; break; case 17: *(uint32_t*)0x200000002a80 = 7; *(uint32_t*)0x200000002a84 = 4; *(uint32_t*)0x200000002a88 = r[5]; *(uint32_t*)0x200000002a90 = 0; *(uint64_t*)0x200000002a98 = 0x100000000; *(uint64_t*)0x200000002aa0 = 3; res = syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0xc0286405, /*arg=*/0x200000002a80ul); if (res != -1) r[7] = *(uint32_t*)0x200000002a90; break; case 18: *(uint32_t*)0x200000002b80 = 1; *(uint32_t*)0x200000002b84 = 0; *(uint32_t*)0x200000002b88 = 0xee00; *(uint32_t*)0x200000002b8c = 5; *(uint32_t*)0x200000002b90 = 9; *(uint32_t*)0x200000002b94 = 0x8c; *(uint16_t*)0x200000002b98 = 6; *(uint32_t*)0x200000002b9c = 0xe0000; *(uint64_t*)0x200000002ba0 = 3; *(uint64_t*)0x200000002ba8 = 6; *(uint64_t*)0x200000002bb0 = 0x2c54; *(uint32_t*)0x200000002bb8 = 0x7fffffff; *(uint32_t*)0x200000002bbc = 5; *(uint16_t*)0x200000002bc0 = 3; *(uint16_t*)0x200000002bc2 = 0; *(uint64_t*)0x200000002bc8 = 0x200000002ac0; memcpy((void*)0x200000002ac0, "\x34\xd1\x45\x92\x33\x0d\x2e\xff\xe2\xb2\x42\xce\x1c\x79\xf9\x7a\x73\x7d\xc0\xf7\x74\x5d\x84\xee\xc4\x69\x04\x8b\xa4\x77\x2d\x3c\xa2\xf3\x4e\x3a\x83\xb5\xed\xad\xf6\x55\x0e\x5b\x41\x2c\xf5\xee\x74\x9b\x33\x24\xb3\x00\x32\xad\x2a\xe1\x4c\xfa\x29\xef\x4e\xcf\x97\x41\x6f\xdc\x53\xd7\x3b\xb8\x0e\xa1\x39\xaa\xc1\xbf\x36\x4d\xdc\xbe\x74\x09\x34\x21\x55\xae\x12\x6f\x63\xd9\xe3\xab\x1d\x51\x04\xbe\xfd\xd9", 100); *(uint64_t*)0x200000002bd0 = 0x200000002b40; memcpy((void*)0x200000002b40, "\xe5\x50\x41\x3c\x2f\x46\x9c\x9e\xf0\x8e\xb7\x19\x3b\x0a\x24\x2e\x58\xbe\xfe\x01\x2a\xa8\x9d\x7c", 24); res = syscall(__NR_shmctl, /*shmid=*/8, /*cmd=*/2ul, /*buf=*/0x200000002b80ul); if (res != -1) r[8] = *(uint32_t*)0x200000002b88; break; case 19: res = syscall(__NR_setfsuid, /*uid=*/0xee01); if (res != -1) r[9] = res; break; case 20: res = syscall(__NR_getuid); if (res != -1) r[10] = res; break; case 21: res = syscall(__NR_fstat, /*fd=*/r[3], /*statbuf=*/0x200000002ec0ul); if (res != -1) { r[11] = *(uint32_t*)0x200000002ed8; r[12] = *(uint32_t*)0x200000002edc; } break; case 22: *(uint32_t*)0x200000002f40 = 9; *(uint32_t*)0x200000002f44 = 6; *(uint32_t*)0x200000002f48 = -1; *(uint32_t*)0x200000002f50 = 0xee01; *(uint64_t*)0x200000002f58 = 9; *(uint64_t*)0x200000002f60 = 8; res = syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0xc0286405, /*arg=*/0x200000002f40ul); if (res != -1) r[13] = *(uint32_t*)0x200000002f50; break; case 23: *(uint64_t*)0x200000002f80 = 1; *(uint32_t*)0x200000002f88 = r[3]; *(uint32_t*)0x200000002f90 = r[3]; *(uint64_t*)0x200000002f98 = 0; *(uint64_t*)0x200000002fa0 = 0; memset((void*)0x200000002fa8, 0, 16); *(uint64_t*)0x200000002fb8 = 0x100; *(uint16_t*)0x200000002fc0 = 6; *(uint16_t*)0x200000002fc2 = 4; *(uint32_t*)0x200000002fc4 = 0; *(uint32_t*)0x200000002fc8 = 0xee01; *(uint32_t*)0x200000002fcc = 4; *(uint32_t*)0x200000002fd0 = 2; *(uint64_t*)0x200000002fd8 = 0xe78bc90; *(uint64_t*)0x200000002fe0 = 0x9e350; *(uint32_t*)0x200000002fe8 = 0x10; *(uint64_t*)0x200000002ff0 = 4; *(uint32_t*)0x200000002ff8 = 7; *(uint64_t*)0x200000003000 = 0x3a83; *(uint32_t*)0x200000003008 = 0x80000000; *(uint64_t*)0x200000003010 = 0xff; *(uint32_t*)0x200000003018 = 8; *(uint32_t*)0x20000000301c = 7; *(uint32_t*)0x200000003020 = 7; *(uint32_t*)0x200000003024 = 5; *(uint16_t*)0x200000003028 = 0xd275; *(uint16_t*)0x20000000302a = 6; *(uint16_t*)0x20000000302c = 1; *(uint16_t*)0x20000000302e = 0xff74; *(uint16_t*)0x200000003030 = 5; memset((void*)0x200000003032, 0, 2); *(uint32_t*)0x200000003034 = 0xf0e; *(uint32_t*)0x200000003038 = 0x400; *(uint16_t*)0x20000000303c = 2; *(uint16_t*)0x20000000303e = 0x8001; res = syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0xc0c0586d, /*arg=*/0x200000002f80ul); if (res != -1) { r[14] = *(uint32_t*)0x200000002f88; r[15] = *(uint32_t*)0x200000002f90; r[16] = *(uint32_t*)0x200000002fc8; } break; case 24: *(uint32_t*)0x2000000030c0 = 0x80; *(uint32_t*)0x2000000030c4 = 0; *(uint32_t*)0x2000000030c8 = 0xee01; *(uint32_t*)0x2000000030cc = 8; *(uint32_t*)0x2000000030d0 = 3; *(uint32_t*)0x2000000030d4 = 3; *(uint16_t*)0x2000000030d8 = 6; *(uint64_t*)0x2000000030e0 = 0x200000003040; *(uint8_t*)0x200000003040 = 0xf; *(uint64_t*)0x2000000030e8 = 0x200000003080; *(uint8_t*)0x200000003080 = 0x29; *(uint64_t*)0x2000000030f0 = 0xfffffffffffff801; *(uint64_t*)0x2000000030f8 = 0x6b4c; *(uint64_t*)0x200000003100 = 0; *(uint64_t*)0x200000003108 = 3; *(uint64_t*)0x200000003110 = 0x800; *(uint16_t*)0x200000003118 = 2; *(uint16_t*)0x20000000311a = 0xbf09; *(uint16_t*)0x20000000311c = 3; *(uint32_t*)0x200000003120 = r[2]; *(uint32_t*)0x200000003124 = r[4]; res = syscall(__NR_msgctl, /*msqid=*/2, /*cmd=*/0ul, /*buf=*/0x2000000030c0ul); if (res != -1) r[17] = *(uint32_t*)0x2000000030c4; break; case 25: *(uint32_t*)0x200000003140 = 0xb407; *(uint32_t*)0x200000003144 = 0xee01; *(uint64_t*)0x200000003148 = 8; *(uint64_t*)0x200000003150 = 8; res = syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0x4018aee2, /*arg=*/0x200000003140ul); if (res != -1) r[18] = *(uint32_t*)0x200000003144; break; case 26: memcpy((void*)0x200000003180, "./file0\000", 8); *(uint32_t*)0x2000000031c0 = 8; *(uint32_t*)0x2000000031c4 = 0xfffffffe; *(uint64_t*)0x2000000031c8 = 0; *(uint32_t*)0x2000000031d0 = 0xa; *(uint32_t*)0x2000000031d4 = 0; *(uint32_t*)0x2000000031d8 = 0xee00; *(uint16_t*)0x2000000031dc = 0xf; *(uint16_t*)0x2000000031de = 0x5d3e; *(uint64_t*)0x2000000031e0 = 5; *(uint64_t*)0x2000000031e8 = 0x10; *(uint64_t*)0x2000000031f0 = 0xff89; *(uint64_t*)0x2000000031f8 = 0x100; *(uint64_t*)0x200000003200 = 0xf; *(uint32_t*)0x200000003208 = 8; *(uint32_t*)0x20000000320c = 0; *(uint64_t*)0x200000003210 = 0xfff; *(uint32_t*)0x200000003218 = 2; *(uint32_t*)0x20000000321c = 0; *(uint64_t*)0x200000003220 = 3; *(uint32_t*)0x200000003228 = 0x7fff; *(uint32_t*)0x20000000322c = 0; *(uint64_t*)0x200000003230 = -1; *(uint32_t*)0x200000003238 = 9; *(uint32_t*)0x20000000323c = 0; *(uint32_t*)0x200000003240 = 0; *(uint32_t*)0x200000003244 = 3; *(uint32_t*)0x200000003248 = 7; *(uint32_t*)0x20000000324c = 0x8d6; *(uint64_t*)0x200000003250 = 0x383d; *(uint32_t*)0x200000003258 = 4; *(uint32_t*)0x20000000325c = 0xb0d4; *(uint64_t*)0x200000003260 = 0x503; *(uint32_t*)0x200000003268 = 2; *(uint32_t*)0x20000000326c = 0; *(uint32_t*)0x200000003270 = 5; *(uint32_t*)0x200000003274 = 2; *(uint64_t*)0x200000003278 = 0xfffffffffffffffb; *(uint64_t*)0x200000003280 = 0xff; *(uint64_t*)0x200000003288 = 3; *(uint64_t*)0x200000003290 = 0x259; *(uint64_t*)0x200000003298 = 0xbe9; *(uint64_t*)0x2000000032a0 = 0xff; *(uint64_t*)0x2000000032a8 = 6; *(uint64_t*)0x2000000032b0 = 0x800; *(uint64_t*)0x2000000032b8 = 9; res = syscall(__NR_statx, /*dfd=*/0xffffff9c, /*filename=*/0x200000003180ul, /*flags=*/4, /*mask=*/2, /*buffer=*/0x2000000031c0ul); if (res != -1) r[19] = *(uint32_t*)0x2000000031d4; break; case 27: *(uint32_t*)0x200000004300 = 5; *(uint32_t*)0x200000004304 = 0xee00; *(uint32_t*)0x200000004308 = 0xee00; *(uint32_t*)0x20000000430c = 3; *(uint32_t*)0x200000004310 = 0x7ff; *(uint32_t*)0x200000004314 = 2; *(uint16_t*)0x200000004318 = 5; *(uint32_t*)0x20000000431c = 2; *(uint64_t*)0x200000004320 = 0x401; *(uint64_t*)0x200000004328 = 3; *(uint64_t*)0x200000004330 = 0xfffffffffffffffe; *(uint32_t*)0x200000004338 = r[1]; *(uint32_t*)0x20000000433c = r[4]; *(uint16_t*)0x200000004340 = 0xfffe; *(uint16_t*)0x200000004342 = 0; *(uint64_t*)0x200000004348 = 0x2000000032c0; memcpy((void*)0x2000000032c0, 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4096); *(uint64_t*)0x200000004350 = 0x2000000042c0; memcpy((void*)0x2000000042c0, "\x14\xdc\x2c\x36\xc1\xa4\x73\x0f\x33\xf0\xa4\x77\x56\xb4\x37\x79\x2e\x9a\xc7\x8f\x74\x2f\x82\x1e\x32\x83\x41\xe0\x2b", 29); res = syscall(__NR_shmctl, /*shmid=*/3, /*cmd=*/1ul, /*buf=*/0x200000004300ul); if (res != -1) { r[20] = *(uint32_t*)0x200000004308; r[21] = *(uint32_t*)0x20000000433c; } break; case 28: memcpy((void*)0x200000004600, "./file0\000", 8); res = syscall(__NR_newfstatat, /*dfd=*/0xffffffffffffff9cul, /*file=*/0x200000004600ul, /*statbuf=*/0x200000004640ul, /*flag=*/0ul); if (res != -1) r[22] = *(uint32_t*)0x200000004658; break; case 29: res = syscall(__NR_fstat, /*fd=*/r[3], /*statbuf=*/0x2000000046c0ul); if (res != -1) { r[23] = *(uint32_t*)0x2000000046d8; r[24] = *(uint32_t*)0x2000000046dc; } break; case 30: *(uint32_t*)0x2000000058c0 = -1; *(uint32_t*)0x2000000058c4 = 0xee00; *(uint32_t*)0x2000000058c8 = -1; *(uint32_t*)0x2000000058cc = 2; *(uint32_t*)0x2000000058d0 = 9; *(uint32_t*)0x2000000058d4 = 2; *(uint16_t*)0x2000000058d8 = 4; *(uint32_t*)0x2000000058dc = 6; *(uint64_t*)0x2000000058e0 = 4; *(uint64_t*)0x2000000058e8 = 4; *(uint64_t*)0x2000000058f0 = 1; *(uint32_t*)0x2000000058f8 = 0; *(uint32_t*)0x2000000058fc = r[4]; *(uint16_t*)0x200000005900 = 0x40; *(uint16_t*)0x200000005902 = 0; *(uint64_t*)0x200000005908 = 0x200000004840; memcpy((void*)0x200000004840, "\xbe\x99\x9e\xee\x25\x89\x59\xe9\x3a\x2a\xa6\x8d\xc2\xcb\x1d\x93\xb8\x19\xd2\xb9\xd9\xe6\x78\xe2\xe2\x50\x6d\x54\x51\x0e\x92\x07\x28\xd7\x58\x15\xbb\x80\x27\xe6\xa0\x21\xfe\xbb\x8f\x09\x96\xf8\xad\xd6\x87\x7b\x74\xce\x5e\xac\xe7\x45\x04\xcf\x3a\x4f\x3a\xc4\x6a\x5a\x59\x40\x03\x42\x35\x19\x40\xbf\xb8\x76\x7d\xd9\x95\x5c\x9e\x9a\x99\x41", 84); *(uint64_t*)0x200000005910 = 0x2000000048c0; memcpy((void*)0x2000000048c0, 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4096); res = syscall(__NR_shmctl, /*shmid=*/0, /*cmd=*/7, /*buf=*/0x2000000058c0ul); if (res != -1) r[25] = *(uint32_t*)0x2000000058c4; break; case 31: memcpy((void*)0x200000005940, "./file0\000", 8); *(uint64_t*)0x200000005980 = 0x100000000; *(uint64_t*)0x200000005988 = 0x7d80; *(uint64_t*)0x200000005990 = 1; *(uint32_t*)0x200000005998 = 0x40; *(uint32_t*)0x20000000599c = -1; *(uint32_t*)0x2000000059a0 = 0; *(uint32_t*)0x2000000059a4 = 0; *(uint64_t*)0x2000000059a8 = 7; *(uint64_t*)0x2000000059b0 = 0xfffffffffffffffb; *(uint64_t*)0x2000000059b8 = 0; *(uint64_t*)0x2000000059c0 = 2; *(uint64_t*)0x2000000059c8 = 0xe6; *(uint64_t*)0x2000000059d0 = 2; *(uint64_t*)0x2000000059d8 = 4; *(uint64_t*)0x2000000059e0 = 0xa03f; *(uint64_t*)0x2000000059e8 = 0x10; *(uint64_t*)0x2000000059f0 = 7; memset((void*)0x2000000059f8, 0, 24); res = syscall(__NR_lstat, /*filename=*/0x200000005940ul, /*statbuf=*/0x200000005980ul); if (res != -1) { r[26] = *(uint32_t*)0x20000000599c; r[27] = *(uint32_t*)0x2000000059a0; } break; case 32: memcpy((void*)0x200000000780, 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8192); *(uint64_t*)0x200000005b80 = 0x200000002780; *(uint32_t*)0x200000002780 = 0x50; *(uint32_t*)0x200000002784 = 0xffffffda; *(uint64_t*)0x200000002788 = 7; *(uint32_t*)0x200000002790 = 7; *(uint32_t*)0x200000002794 = 0x2d; *(uint32_t*)0x200000002798 = 8; *(uint32_t*)0x20000000279c = 0x1020000; *(uint16_t*)0x2000000027a0 = 0xfffc; *(uint16_t*)0x2000000027a2 = 0x401; *(uint32_t*)0x2000000027a4 = 0x12; *(uint32_t*)0x2000000027a8 = 6; *(uint16_t*)0x2000000027ac = 0; *(uint16_t*)0x2000000027ae = 0; *(uint32_t*)0x2000000027b0 = 0x40; *(uint32_t*)0x2000000027b4 = 0xce; memset((void*)0x2000000027b8, 0, 24); *(uint64_t*)0x200000005b88 = 0x200000002800; *(uint32_t*)0x200000002800 = 0x18; *(uint32_t*)0x200000002804 = 0; *(uint64_t*)0x200000002808 = 6; *(uint64_t*)0x200000002810 = 0xbb; *(uint64_t*)0x200000005b90 = 0x200000002840; *(uint32_t*)0x200000002840 = 0x18; *(uint32_t*)0x200000002844 = 0; *(uint64_t*)0x200000002848 = 1; *(uint64_t*)0x200000002850 = 5; *(uint64_t*)0x200000005b98 = 0x200000002880; *(uint32_t*)0x200000002880 = 0x18; *(uint32_t*)0x200000002884 = 0xfffffff5; *(uint64_t*)0x200000002888 = 4; *(uint32_t*)0x200000002890 = 0; *(uint32_t*)0x200000002894 = 0; *(uint64_t*)0x200000005ba0 = 0x2000000028c0; *(uint32_t*)0x2000000028c0 = 0x18; *(uint32_t*)0x2000000028c4 = 0xfffffffe; *(uint64_t*)0x2000000028c8 = 3; *(uint32_t*)0x2000000028d0 = 7; *(uint32_t*)0x2000000028d4 = 0; *(uint64_t*)0x200000005ba8 = 0x200000002900; *(uint32_t*)0x200000002900 = 0x28; *(uint32_t*)0x200000002904 = 0; *(uint64_t*)0x200000002908 = 0x300000000000; *(uint64_t*)0x200000002910 = 1; *(uint64_t*)0x200000002918 = 8; *(uint32_t*)0x200000002920 = 0; *(uint32_t*)0x200000002924 = r[1]; *(uint64_t*)0x200000005bb0 = 0x200000002940; *(uint32_t*)0x200000002940 = 0x60; *(uint32_t*)0x200000002944 = 0; *(uint64_t*)0x200000002948 = 0xc; *(uint64_t*)0x200000002950 = 0; *(uint64_t*)0x200000002958 = 0xff; *(uint64_t*)0x200000002960 = 2; *(uint64_t*)0x200000002968 = 0x41; *(uint64_t*)0x200000002970 = 0x40; *(uint32_t*)0x200000002978 = 6; *(uint32_t*)0x20000000297c = 0x8dd; *(uint32_t*)0x200000002980 = 5; *(uint32_t*)0x200000002984 = 0; memset((void*)0x200000002988, 0, 24); *(uint64_t*)0x200000005bb8 = 0x2000000029c0; *(uint32_t*)0x2000000029c0 = 0x18; *(uint32_t*)0x2000000029c4 = 0xffffffda; *(uint64_t*)0x2000000029c8 = 9; *(uint32_t*)0x2000000029d0 = 5; *(uint32_t*)0x2000000029d4 = 0; *(uint64_t*)0x200000005bc0 = 0x200000002a00; *(uint32_t*)0x200000002a00 = 0x16; *(uint32_t*)0x200000002a04 = 0; *(uint64_t*)0x200000002a08 = 6; memset((void*)0x200000002a10, 255, 6); *(uint64_t*)0x200000005bc8 = 0x200000002a40; *(uint32_t*)0x200000002a40 = 0x20; *(uint32_t*)0x200000002a44 = 0; *(uint64_t*)0x200000002a48 = 0; *(uint64_t*)0x200000002a50 = 0; *(uint32_t*)0x200000002a58 = 0x1e; *(uint32_t*)0x200000002a5c = 0; *(uint64_t*)0x200000005bd0 = 0x200000002c00; *(uint32_t*)0x200000002c00 = 0x78; *(uint32_t*)0x200000002c04 = 0xfffffffe; *(uint64_t*)0x200000002c08 = 3; *(uint64_t*)0x200000002c10 = 8; *(uint32_t*)0x200000002c18 = 6; *(uint32_t*)0x200000002c1c = 0; *(uint64_t*)0x200000002c20 = 0; *(uint64_t*)0x200000002c28 = 8; *(uint64_t*)0x200000002c30 = 2; *(uint64_t*)0x200000002c38 = 8; *(uint64_t*)0x200000002c40 = 0x80; *(uint64_t*)0x200000002c48 = 5; *(uint32_t*)0x200000002c50 = 0x3482; *(uint32_t*)0x200000002c54 = 0xa246; *(uint32_t*)0x200000002c58 = 0x80000000; *(uint32_t*)0x200000002c5c = 0x4000; *(uint32_t*)0x200000002c60 = 0x3e08; *(uint32_t*)0x200000002c64 = r[7]; *(uint32_t*)0x200000002c68 = r[8]; *(uint32_t*)0x200000002c6c = 0x7f; *(uint32_t*)0x200000002c70 = 3; *(uint32_t*)0x200000002c74 = 0; *(uint64_t*)0x200000005bd8 = 0x200000002c80; *(uint32_t*)0x200000002c80 = 0x90; *(uint32_t*)0x200000002c84 = 0xffffffda; *(uint64_t*)0x200000002c88 = 2; *(uint64_t*)0x200000002c90 = 6; *(uint64_t*)0x200000002c98 = 0; *(uint64_t*)0x200000002ca0 = 2; *(uint64_t*)0x200000002ca8 = 8; *(uint32_t*)0x200000002cb0 = 0xfffffffc; *(uint32_t*)0x200000002cb4 = 9; *(uint64_t*)0x200000002cb8 = 1; *(uint64_t*)0x200000002cc0 = 3; *(uint64_t*)0x200000002cc8 = 2; *(uint64_t*)0x200000002cd0 = 5; *(uint64_t*)0x200000002cd8 = 0x761; *(uint64_t*)0x200000002ce0 = 7; *(uint32_t*)0x200000002ce8 = 0x58d95c3d; *(uint32_t*)0x200000002cec = 7; *(uint32_t*)0x200000002cf0 = 7; *(uint32_t*)0x200000002cf4 = 0x8000; *(uint32_t*)0x200000002cf8 = 8; *(uint32_t*)0x200000002cfc = r[9]; *(uint32_t*)0x200000002d00 = 0xee01; *(uint32_t*)0x200000002d04 = 0; *(uint32_t*)0x200000002d08 = 0x400; *(uint32_t*)0x200000002d0c = 0; *(uint64_t*)0x200000005be0 = 0x200000002d40; *(uint32_t*)0x200000002d40 = 0x158; *(uint32_t*)0x200000002d44 = 0; *(uint64_t*)0x200000002d48 = 0x8000000000000001; *(uint64_t*)0x200000002d50 = 0; *(uint64_t*)0x200000002d58 = 0; *(uint32_t*)0x200000002d60 = 0; *(uint32_t*)0x200000002d64 = 5; *(uint64_t*)0x200000002d68 = 2; *(uint64_t*)0x200000002d70 = 0x291; *(uint32_t*)0x200000002d78 = 3; *(uint32_t*)0x200000002d7c = 0; memcpy((void*)0x200000002d80, "a-$", 3); *(uint64_t*)0x200000002d88 = 6; *(uint64_t*)0x200000002d90 = 1; *(uint32_t*)0x200000002d98 = 0x1a; *(uint32_t*)0x200000002d9c = 0x5df9; memcpy((void*)0x200000002da0, "bpf_lsm_inode_getsecurity\000", 26); *(uint64_t*)0x200000002dc0 = 5; *(uint64_t*)0x200000002dc8 = 4; *(uint32_t*)0x200000002dd0 = 0; *(uint32_t*)0x200000002dd4 = 0; *(uint64_t*)0x200000002dd8 = 3; *(uint64_t*)0x200000002de0 = 2; *(uint32_t*)0x200000002de8 = 7; *(uint32_t*)0x200000002dec = 0x615d; memcpy((void*)0x200000002df0, "]F,[@%(", 7); *(uint64_t*)0x200000002df8 = 3; *(uint64_t*)0x200000002e00 = 4; *(uint32_t*)0x200000002e08 = 2; *(uint32_t*)0x200000002e0c = 5; memcpy((void*)0x200000002e10, "#*", 2); *(uint64_t*)0x200000002e18 = 6; *(uint64_t*)0x200000002e20 = 0xc; *(uint32_t*)0x200000002e28 = 1; *(uint32_t*)0x200000002e2c = 0x200; memset((void*)0x200000002e30, 33, 1); *(uint64_t*)0x200000002e38 = 2; *(uint64_t*)0x200000002e40 = 1; *(uint32_t*)0x200000002e48 = 3; *(uint32_t*)0x200000002e4c = 0xffff; memcpy((void*)0x200000002e50, "%[*", 3); *(uint64_t*)0x200000002e58 = 2; *(uint64_t*)0x200000002e60 = 1; *(uint32_t*)0x200000002e68 = 6; *(uint32_t*)0x200000002e6c = 0x10001; memset((void*)0x200000002e70, 187, 6); *(uint64_t*)0x200000002e78 = 2; *(uint64_t*)0x200000002e80 = 9; *(uint32_t*)0x200000002e88 = 3; *(uint32_t*)0x200000002e8c = 3; memcpy((void*)0x200000002e90, "\\$&", 3); *(uint64_t*)0x200000005be8 = 0x200000004380; *(uint32_t*)0x200000004380 = 0x280; *(uint32_t*)0x200000004384 = 0; *(uint64_t*)0x200000004388 = 7; *(uint64_t*)0x200000004390 = 1; *(uint64_t*)0x200000004398 = 2; *(uint64_t*)0x2000000043a0 = 0x9b; *(uint64_t*)0x2000000043a8 = 0xa; *(uint32_t*)0x2000000043b0 = 0x40; *(uint32_t*)0x2000000043b4 = 0x2b; *(uint64_t*)0x2000000043b8 = 1; *(uint64_t*)0x2000000043c0 = 0; *(uint64_t*)0x2000000043c8 = 0xf5; *(uint64_t*)0x2000000043d0 = 7; *(uint64_t*)0x2000000043d8 = 8; *(uint64_t*)0x2000000043e0 = 7; *(uint32_t*)0x2000000043e8 = 5; *(uint32_t*)0x2000000043ec = 9; *(uint32_t*)0x2000000043f0 = 0x1b; *(uint32_t*)0x2000000043f4 = 0xa000; *(uint32_t*)0x2000000043f8 = 4; *(uint32_t*)0x2000000043fc = r[10]; *(uint32_t*)0x200000004400 = r[12]; *(uint32_t*)0x200000004404 = 4; *(uint32_t*)0x200000004408 = 0x10000; *(uint32_t*)0x20000000440c = 0; *(uint64_t*)0x200000004410 = 4; *(uint64_t*)0x200000004418 = 6; *(uint32_t*)0x200000004420 = 0; *(uint32_t*)0x200000004424 = 0x7f; *(uint64_t*)0x200000004428 = 1; *(uint64_t*)0x200000004430 = 0; *(uint64_t*)0x200000004438 = 9; *(uint64_t*)0x200000004440 = 4; *(uint32_t*)0x200000004448 = 9; *(uint32_t*)0x20000000444c = 0x101; *(uint64_t*)0x200000004450 = 0; *(uint64_t*)0x200000004458 = 0x80; *(uint64_t*)0x200000004460 = 0x80000001; *(uint64_t*)0x200000004468 = 8; *(uint64_t*)0x200000004470 = 0x7fffffffffffffff; *(uint64_t*)0x200000004478 = 0xc14; *(uint32_t*)0x200000004480 = 7; *(uint32_t*)0x200000004484 = 2; *(uint32_t*)0x200000004488 = 5; *(uint32_t*)0x20000000448c = 0x1000; *(uint32_t*)0x200000004490 = 7; *(uint32_t*)0x200000004494 = r[13]; *(uint32_t*)0x200000004498 = r[16]; *(uint32_t*)0x20000000449c = 7; *(uint32_t*)0x2000000044a0 = 3; *(uint32_t*)0x2000000044a4 = 0; *(uint64_t*)0x2000000044a8 = 1; *(uint64_t*)0x2000000044b0 = 0x8000000000000000; *(uint32_t*)0x2000000044b8 = 0; *(uint32_t*)0x2000000044bc = 9; *(uint64_t*)0x2000000044c0 = 3; *(uint64_t*)0x2000000044c8 = 1; *(uint64_t*)0x2000000044d0 = 7; *(uint64_t*)0x2000000044d8 = 3; *(uint32_t*)0x2000000044e0 = 0x10000; *(uint32_t*)0x2000000044e4 = 0xfff; *(uint64_t*)0x2000000044e8 = 6; *(uint64_t*)0x2000000044f0 = 3; *(uint64_t*)0x2000000044f8 = 4; *(uint64_t*)0x200000004500 = 0xffffffff; *(uint64_t*)0x200000004508 = 5; *(uint64_t*)0x200000004510 = 1; *(uint32_t*)0x200000004518 = 0xcf; *(uint32_t*)0x20000000451c = 5; *(uint32_t*)0x200000004520 = 2; *(uint32_t*)0x200000004524 = 0x3000; *(uint32_t*)0x200000004528 = 0xf; *(uint32_t*)0x20000000452c = r[17]; *(uint32_t*)0x200000004530 = r[18]; *(uint32_t*)0x200000004534 = 0xdda; *(uint32_t*)0x200000004538 = 0x800; *(uint32_t*)0x20000000453c = 0; *(uint64_t*)0x200000004540 = 0; *(uint64_t*)0x200000004548 = 0x480; *(uint32_t*)0x200000004550 = 1; *(uint32_t*)0x200000004554 = 7; memset((void*)0x200000004558, 39, 1); *(uint64_t*)0x200000004560 = 3; *(uint64_t*)0x200000004568 = 0; *(uint64_t*)0x200000004570 = 6; *(uint64_t*)0x200000004578 = 6; *(uint32_t*)0x200000004580 = 0xae90; *(uint32_t*)0x200000004584 = 0x7fff; *(uint64_t*)0x200000004588 = 5; *(uint64_t*)0x200000004590 = 2; *(uint64_t*)0x200000004598 = 0xffff; *(uint64_t*)0x2000000045a0 = 0xb6; *(uint64_t*)0x2000000045a8 = 9; *(uint64_t*)0x2000000045b0 = 8; *(uint32_t*)0x2000000045b8 = 0x200; *(uint32_t*)0x2000000045bc = 3; *(uint32_t*)0x2000000045c0 = 6; *(uint32_t*)0x2000000045c4 = 0x6000; *(uint32_t*)0x2000000045c8 = 0xfffffff7; *(uint32_t*)0x2000000045cc = r[19]; *(uint32_t*)0x2000000045d0 = r[20]; *(uint32_t*)0x2000000045d4 = 4; *(uint32_t*)0x2000000045d8 = 6; *(uint32_t*)0x2000000045dc = 0; *(uint64_t*)0x2000000045e0 = 0; *(uint64_t*)0x2000000045e8 = 3; *(uint32_t*)0x2000000045f0 = 6; *(uint32_t*)0x2000000045f4 = 0xfffffffd; memcpy((void*)0x2000000045f8, "wlan0\000", 6); *(uint64_t*)0x200000005bf0 = 0x200000004740; *(uint32_t*)0x200000004740 = 0xa0; *(uint32_t*)0x200000004744 = 0xfffffffe; *(uint64_t*)0x200000004748 = 0x7fff; *(uint64_t*)0x200000004750 = 1; *(uint64_t*)0x200000004758 = 2; *(uint64_t*)0x200000004760 = 8; *(uint64_t*)0x200000004768 = 0x8001; *(uint32_t*)0x200000004770 = 0x9000; *(uint32_t*)0x200000004774 = 0; *(uint64_t*)0x200000004778 = 3; *(uint64_t*)0x200000004780 = 4; *(uint64_t*)0x200000004788 = 0x4283; *(uint64_t*)0x200000004790 = 6; *(uint64_t*)0x200000004798 = 7; *(uint64_t*)0x2000000047a0 = 1; *(uint32_t*)0x2000000047a8 = 4; *(uint32_t*)0x2000000047ac = 0x8000; *(uint32_t*)0x2000000047b0 = 0x7f; *(uint32_t*)0x2000000047b4 = 0x2000; *(uint32_t*)0x2000000047b8 = 0xa; *(uint32_t*)0x2000000047bc = r[22]; *(uint32_t*)0x2000000047c0 = r[24]; *(uint32_t*)0x2000000047c4 = 2; *(uint32_t*)0x2000000047c8 = 9; *(uint32_t*)0x2000000047cc = 0; *(uint64_t*)0x2000000047d0 = 0; *(uint32_t*)0x2000000047d8 = 0; *(uint32_t*)0x2000000047dc = 0; *(uint64_t*)0x200000005bf8 = 0x200000004800; *(uint32_t*)0x200000004800 = 0x20; *(uint32_t*)0x200000004804 = 0; *(uint64_t*)0x200000004808 = 0xa; *(uint32_t*)0x200000004810 = 8; *(uint32_t*)0x200000004814 = 0; *(uint32_t*)0x200000004818 = 0; *(uint32_t*)0x20000000481c = 0; *(uint64_t*)0x200000005c00 = 0x200000005a40; *(uint32_t*)0x200000005a40 = 0x130; *(uint32_t*)0x200000005a44 = 0; *(uint64_t*)0x200000005a48 = 0x800; *(uint64_t*)0x200000005a50 = 0x10000000; *(uint32_t*)0x200000005a58 = 9; *(uint32_t*)0x200000005a5c = 0; memset((void*)0x200000005a60, 0, 16); *(uint32_t*)0x200000005a70 = 4; *(uint32_t*)0x200000005a74 = 0xfffffff9; *(uint64_t*)0x200000005a78 = 8; *(uint32_t*)0x200000005a80 = 0xd; *(uint32_t*)0x200000005a84 = r[25]; *(uint32_t*)0x200000005a88 = r[27]; *(uint16_t*)0x200000005a8c = 0x4000; memset((void*)0x200000005a8e, 0, 2); *(uint64_t*)0x200000005a90 = 0xe; *(uint64_t*)0x200000005a98 = 1; *(uint64_t*)0x200000005aa0 = 9; *(uint64_t*)0x200000005aa8 = 4; *(uint64_t*)0x200000005ab0 = 0x75; *(uint32_t*)0x200000005ab8 = 0x10; *(uint32_t*)0x200000005abc = 0; *(uint64_t*)0x200000005ac0 = 0; *(uint32_t*)0x200000005ac8 = 0x2a; *(uint32_t*)0x200000005acc = 0; *(uint64_t*)0x200000005ad0 = 4; *(uint32_t*)0x200000005ad8 = 0x647; *(uint32_t*)0x200000005adc = 0; *(uint64_t*)0x200000005ae0 = 8; *(uint32_t*)0x200000005ae8 = 0xfffffffa; *(uint32_t*)0x200000005aec = 0; *(uint32_t*)0x200000005af0 = 4; *(uint32_t*)0x200000005af4 = 9; *(uint32_t*)0x200000005af8 = 0xf1; *(uint32_t*)0x200000005afc = 7; memset((void*)0x200000005b00, 0, 112); syz_fuse_handle_req(/*fd=*/r[6], /*buf=*/0x200000000780, /*len=*/0x2000, /*res=*/0x200000005b80); break; case 33: res = syscall(__NR_socket, /*domain=*/0x10ul, /*type=*/3ul, /*proto=*/0x10); if (res != -1) r[28] = res; break; case 34: memcpy((void*)0x200000005c40, "SEG6\000", 5); syz_genetlink_get_family_id(/*name=*/0x200000005c40, /*fd=*/r[28]); break; case 35: syz_init_net_socket(/*domain=*/0x24, /*type=*/2, /*proto=*/0); break; case 36: res = -1; res = syz_io_uring_complete(/*ring_ptr=*/0); if (res != -1) r[29] = res; break; case 37: *(uint32_t*)0x200000005c84 = 0x9c5d; *(uint32_t*)0x200000005c88 = 2; *(uint32_t*)0x200000005c8c = 1; *(uint32_t*)0x200000005c90 = 0x253; *(uint32_t*)0x200000005c98 = r[15]; memset((void*)0x200000005c9c, 0, 12); res = -1; res = syz_io_uring_setup(/*entries=*/0x19f7, /*params=*/0x200000005c80, /*ring_ptr=*/0x200000005d00, /*sqes_ptr=*/0x200000005d40); if (res != -1) { r[30] = *(uint64_t*)0x200000005d00; r[31] = *(uint64_t*)0x200000005d40; } break; case 38: *(uint8_t*)0x200000005dc0 = 0xb; *(uint8_t*)0x200000005dc1 = 0x28; *(uint16_t*)0x200000005dc2 = 0; *(uint32_t*)0x200000005dc4 = 0; *(uint64_t*)0x200000005dc8 = 3; *(uint64_t*)0x200000005dd0 = 0x200000005d80; *(uint64_t*)0x200000005d80 = 0; *(uint64_t*)0x200000005d88 = 0; *(uint32_t*)0x200000005dd8 = 1; *(uint32_t*)0x200000005ddc = 0x10; *(uint64_t*)0x200000005de0 = 1; *(uint16_t*)0x200000005de8 = 0; *(uint16_t*)0x200000005dea = 0; memset((void*)0x200000005dec, 0, 20); syz_io_uring_submit(/*ring_ptr=*/r[30], /*sqes_ptr=*/r[31], /*sqe=*/0x200000005dc0); break; case 39: res = -1; res = syz_kvm_setup_syzos_vm(/*fd=*/r[15], /*usermem=*/0x200000bff000); if (res != -1) r[32] = res; break; case 40: *(uint64_t*)0x200000005e80 = 0; *(uint64_t*)0x200000005e88 = 0x200000005e00; *(uint64_t*)0x200000005e00 = 0x12c; *(uint64_t*)0x200000005e08 = 0x18; *(uint64_t*)0x200000005e10 = 0; *(uint64_t*)0x200000005e18 = 0; *(uint64_t*)0x200000005e20 = 0x18; *(uint64_t*)0x200000005e28 = 4; *(uint64_t*)0x200000005e30 = 0x12d; *(uint64_t*)0x200000005e38 = 0x18; *(uint64_t*)0x200000005e40 = 2; *(uint64_t*)0x200000005e90 = 0x48; syz_kvm_add_vcpu(/*vm=*/r[32], /*text=*/0x200000005e80); break; case 41: *(uint64_t*)0x200000006100 = 0; *(uint64_t*)0x200000006108 = 0x200000005ec0; memcpy((void*)0x200000005ec0, 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560); *(uint64_t*)0x200000006110 = 0x230; *(uint64_t*)0x200000006140 = 1; *(uint64_t*)0x200000006148 = 7; syz_kvm_setup_cpu(/*fd=*/r[14], /*cpufd=*/r[29], /*usermem=*/0x200000c37000, /*text=*/0x200000006100, /*ntext=*/1, /*flags=KVM_SETUP_PPC64_LE*/1, /*opts=*/0x200000006140, /*nopt=*/1); break; case 42: syz_kvm_setup_syzos_vm(/*fd=*/r[29], /*usermem=*/0x200000c00000); break; case 43: *(uint32_t*)0x200000006180 = 0; syz_memcpy_off(/*ring_ptr=*/r[30], /*flag_off=SQ_FLAGS_OFFSET*/0x114, /*src=*/0x200000006180, /*src_off=*/0, /*nbytes=*/4); break; case 44: *(uint64_t*)0x200000006240 = 5; res = syscall(__NR_socketcall, /*call=*/1ul, /*args=*/0x200000006240ul); if (res != -1) r[33] = res; break; case 45: *(uint32_t*)0x200000006340 = 0xfffffffa; *(uint32_t*)0x200000006344 = r[11]; *(uint32_t*)0x200000006348 = r[27]; *(uint32_t*)0x20000000634c = 3; *(uint32_t*)0x200000006350 = 0xffff; *(uint32_t*)0x200000006354 = 0xe6b; *(uint16_t*)0x200000006358 = 7; *(uint32_t*)0x20000000635c = 0; *(uint64_t*)0x200000006360 = 0x357b; *(uint64_t*)0x200000006368 = 3; *(uint64_t*)0x200000006370 = 0x8000000000000000; *(uint32_t*)0x200000006378 = 0x74; *(uint32_t*)0x20000000637c = r[21]; *(uint16_t*)0x200000006380 = 0xc0b; *(uint16_t*)0x200000006382 = 0; *(uint64_t*)0x200000006388 = 0x200000006280; memcpy((void*)0x200000006280, "\x70\x10\x15\x9f\x68\xd5\xae\x90\x71\x37\xfa\x70\xd2\x86\xa1\x8b\xa4\x83\x48\xf8\x8d\x1f\xa0\x97\xcf\xe8\x2b\xb9\x55\x9e\x66\xc9\x7b\x4c\xcf\x3a\xcd\x9c\xe2\x40\x54\x49\x07\xf4\x53\x81\x70\xe4\x5e\x0c\x6d\xe8\xad\xfb\x6a\xe9\x4e\xd4\x4b\x61\x6a\x63\x73\x78\x14\xf1\x89\x44\x73\xd9\x51\x9f\x21\x30\xe8\xa0\xe0\x61\xc9\x6e\x46\xa9\x9a\x53\x16\xe4\x6b\x6b\x46\x13\x48\xbb\x03\xdd\xda\xd7\x06\x75\xbc\xda\x59\x21\xbd\xb5\x03\x8c\xc7\xdc\xad\xe7\xba\x3e\x10\x6c\xf3\x15\xe2\xad\x48\x81\x8a\x62\xc7", 123); *(uint64_t*)0x200000006390 = 0x200000006300; memcpy((void*)0x200000006300, "\x13\x68\x24\x8a\xd9\x08\xeb\x42\x50\x81\x23\x9c\x0a\x10\xa5\x14\xef\x06\xf1\x6f\xa3\x8b\xc5\x2b\x0f\x03\xb0\x4d\x36\xf5\x44\x26\x3c\xb4\xa0\xa3\xff\xbb\xaf\xa8\x00\x89\xcf\x8b\x02\x84\x1d\xf4\x33\xc6\xb9\x7d\xa8\xfb\xfe\x28\x5f\xcc\xd0\x5a\xd4", 61); res = syscall(__NR_shmctl, /*shmid=*/0x80000000, /*cmd=*/0xeul, /*buf=*/0x200000006340ul); if (res != -1) { r[34] = *(uint32_t*)0x200000006348; r[35] = *(uint32_t*)0x20000000637c; } break; case 46: memcpy((void*)0x2000000061c0, "fuse\000", 5); memcpy((void*)0x200000006200, "./file0\000", 8); memcpy((void*)0x2000000063c0, "fd", 2); *(uint8_t*)0x2000000063c2 = 0x3d; sprintf((char*)0x2000000063c3, "0x%016llx", (long long)r[33]); *(uint8_t*)0x2000000063d5 = 0x2c; memcpy((void*)0x2000000063d6, "rootmode", 8); *(uint8_t*)0x2000000063de = 0x3d; sprintf((char*)0x2000000063df, "%023llo", (long long)0x1000); *(uint8_t*)0x2000000063f6 = 0x2c; memcpy((void*)0x2000000063f7, "user_id", 7); *(uint8_t*)0x2000000063fe = 0x3d; sprintf((char*)0x2000000063ff, "%020llu", (long long)r[23]); *(uint8_t*)0x200000006413 = 0x2c; memcpy((void*)0x200000006414, "group_id", 8); *(uint8_t*)0x20000000641c = 0x3d; sprintf((char*)0x20000000641d, "%020llu", (long long)r[34]); *(uint8_t*)0x200000006431 = 0x2c; memcpy((void*)0x200000006432, "blksize", 7); *(uint8_t*)0x200000006439 = 0x3d; sprintf((char*)0x20000000643a, "0x%016llx", (long long)0x600); *(uint8_t*)0x20000000644c = 0x2c; memcpy((void*)0x20000000644d, "max_read", 8); *(uint8_t*)0x200000006455 = 0x3d; sprintf((char*)0x200000006456, "0x%016llx", (long long)0); *(uint8_t*)0x200000006468 = 0x2c; memcpy((void*)0x200000006469, "blksize", 7); *(uint8_t*)0x200000006470 = 0x3d; sprintf((char*)0x200000006471, "0x%016llx", (long long)0x1e00); *(uint8_t*)0x200000006483 = 0x2c; memcpy((void*)0x200000006484, "max_read", 8); *(uint8_t*)0x20000000648c = 0x3d; sprintf((char*)0x20000000648d, "0x%016llx", (long long)0x100000001); *(uint8_t*)0x20000000649f = 0x2c; memcpy((void*)0x2000000064a0, "default_permissions", 19); *(uint8_t*)0x2000000064b3 = 0x2c; memcpy((void*)0x2000000064b4, "default_permissions", 19); *(uint8_t*)0x2000000064c7 = 0x2c; memcpy((void*)0x2000000064c8, "euid<", 5); sprintf((char*)0x2000000064cd, "%020llu", (long long)r[13]); *(uint8_t*)0x2000000064e1 = 0x2c; memcpy((void*)0x2000000064e2, "subj_user", 9); *(uint8_t*)0x2000000064eb = 0x3d; memset((void*)0x2000000064ec, 44, 1); *(uint8_t*)0x2000000064ed = 0x2c; memcpy((void*)0x2000000064ee, "uid<", 4); sprintf((char*)0x2000000064f2, "%020llu", (long long)r[26]); *(uint8_t*)0x200000006506 = 0x2c; memcpy((void*)0x200000006507, "audit", 5); *(uint8_t*)0x20000000650c = 0x2c; memcpy((void*)0x20000000650d, "dont_measure", 12); *(uint8_t*)0x200000006519 = 0x2c; *(uint8_t*)0x20000000651a = 0; memcpy((void*)0x200000006540, "\xd3\xaa\x92", 3); syz_mount_image(/*fs=*/0x2000000061c0, /*dir=*/0x200000006200, /*flags=MS_NOATIME*/0x400, /*opts=*/0x2000000063c0, /*chdir=*/0, /*size=*/0, /*img=*/0x200000006540); break; case 47: memcpy((void*)0x200000006580, "/dev/i2c-#\000", 11); syz_open_dev(/*dev=*/0x200000006580, /*id=*/0x800, /*flags=O_NOATIME*/0x40000); break; case 48: memcpy((void*)0x2000000065c0, "cgroup\000", 7); syz_open_procfs(/*pid=*/r[5], /*file=*/0x2000000065c0); break; case 49: syz_open_pts(/*fd=*/r[14], /*flags=O_TRUNC|O_WRONLY*/0x201); break; case 50: syz_pidfd_open(/*pid=*/r[35], /*flags=*/0); break; case 51: res = syscall(__NR_pkey_alloc, /*flags=*/0ul, /*val=PKEY_DISABLE_WRITE*/2ul); if (res != -1) r[36] = res; break; case 52: syz_pkey_set(/*key=*/r[36], /*val=*/0); break; case 53: syz_socket_connect_nvme_tcp(); break; case 54: *(uint8_t*)0x200000006600 = 0x12; *(uint8_t*)0x200000006601 = 1; *(uint16_t*)0x200000006602 = 0x310; *(uint8_t*)0x200000006604 = 0xf; *(uint8_t*)0x200000006605 = 0x36; *(uint8_t*)0x200000006606 = 0x49; *(uint8_t*)0x200000006607 = 8; *(uint16_t*)0x200000006608 = 0x7d0; *(uint16_t*)0x20000000660a = 0x4101; *(uint16_t*)0x20000000660c = 0x4624; *(uint8_t*)0x20000000660e = 1; *(uint8_t*)0x20000000660f = 2; *(uint8_t*)0x200000006610 = 3; *(uint8_t*)0x200000006611 = 1; *(uint8_t*)0x200000006612 = 9; *(uint8_t*)0x200000006613 = 2; *(uint16_t*)0x200000006614 = 0x4f2; *(uint8_t*)0x200000006616 = 3; *(uint8_t*)0x200000006617 = 1; *(uint8_t*)0x200000006618 = 0xa2; *(uint8_t*)0x200000006619 = 0x40; *(uint8_t*)0x20000000661a = 0x64; *(uint8_t*)0x20000000661b = 9; *(uint8_t*)0x20000000661c = 4; *(uint8_t*)0x20000000661d = 0xc2; *(uint8_t*)0x20000000661e = 7; *(uint8_t*)0x20000000661f = 0xa; *(uint8_t*)0x200000006620 = 0x50; *(uint8_t*)0x200000006621 = 0xb3; *(uint8_t*)0x200000006622 = 0x17; *(uint8_t*)0x200000006623 = 7; *(uint8_t*)0x200000006624 = 9; *(uint8_t*)0x200000006625 = 0x21; *(uint16_t*)0x200000006626 = 3; *(uint8_t*)0x200000006628 = 0xdf; *(uint8_t*)0x200000006629 = 1; *(uint8_t*)0x20000000662a = 0x22; *(uint16_t*)0x20000000662b = 0x238; *(uint8_t*)0x20000000662d = 7; *(uint8_t*)0x20000000662e = 0x24; *(uint8_t*)0x20000000662f = 1; *(uint8_t*)0x200000006630 = 2; *(uint8_t*)0x200000006631 = 2; *(uint16_t*)0x200000006632 = 2; *(uint8_t*)0x200000006634 = 0xb; *(uint8_t*)0x200000006635 = 0x24; *(uint8_t*)0x200000006636 = 2; *(uint8_t*)0x200000006637 = 1; *(uint8_t*)0x200000006638 = 0xde; *(uint8_t*)0x200000006639 = 2; *(uint8_t*)0x20000000663a = 0; *(uint8_t*)0x20000000663b = 5; memcpy((void*)0x20000000663c, "\x11\x6d\xf7", 3); *(uint8_t*)0x20000000663f = 0xa; *(uint8_t*)0x200000006640 = 0x24; *(uint8_t*)0x200000006641 = 2; *(uint8_t*)0x200000006642 = 2; *(uint16_t*)0x200000006643 = 8; *(uint16_t*)0x200000006645 = 3; *(uint8_t*)0x200000006647 = 7; memset((void*)0x200000006648, 59, 1); *(uint8_t*)0x200000006649 = 0xa; *(uint8_t*)0x20000000664a = 0x24; *(uint8_t*)0x20000000664b = 2; *(uint8_t*)0x20000000664c = 1; *(uint8_t*)0x20000000664d = 4; *(uint8_t*)0x20000000664e = 3; *(uint8_t*)0x20000000664f = 0x1a; *(uint8_t*)0x200000006650 = 9; memcpy((void*)0x200000006651, "\x0f\x58", 2); *(uint8_t*)0x200000006653 = 0xc; *(uint8_t*)0x200000006654 = 0x24; *(uint8_t*)0x200000006655 = 2; *(uint8_t*)0x200000006656 = 2; *(uint16_t*)0x200000006657 = 0xf270; *(uint16_t*)0x200000006659 = 0x100; *(uint8_t*)0x20000000665b = 7; memcpy((void*)0x20000000665c, "\x31\x29\xf9", 3); *(uint8_t*)0x20000000665f = 0xb; *(uint8_t*)0x200000006660 = 0x24; *(uint8_t*)0x200000006661 = 2; *(uint8_t*)0x200000006662 = 1; *(uint8_t*)0x200000006663 = 1; *(uint8_t*)0x200000006664 = 3; *(uint8_t*)0x200000006665 = 0xf9; *(uint8_t*)0x200000006666 = 0xa3; memcpy((void*)0x200000006667, "\x54\x06\x13", 3); *(uint8_t*)0x20000000666a = 9; *(uint8_t*)0x20000000666b = 5; *(uint8_t*)0x20000000666c = 3; *(uint8_t*)0x20000000666d = 0x38; *(uint16_t*)0x20000000666e = 8; *(uint8_t*)0x200000006670 = 1; *(uint8_t*)0x200000006671 = 0xf9; *(uint8_t*)0x200000006672 = 0; *(uint8_t*)0x200000006673 = 7; *(uint8_t*)0x200000006674 = 0x25; *(uint8_t*)0x200000006675 = 1; *(uint8_t*)0x200000006676 = 1; *(uint8_t*)0x200000006677 = 0x80; *(uint16_t*)0x200000006678 = 0xffb0; *(uint8_t*)0x20000000667a = 0x62; *(uint8_t*)0x20000000667b = 0xe; memcpy((void*)0x20000000667c, "\x0b\xef\x67\x9d\x63\x59\xd7\x1a\x14\x4a\x38\xa2\x28\x34\xd1\x2b\xd1\x9c\x60\xb6\x58\x29\xf4\x4e\xbe\x6b\x12\x58\xa3\xa7\xa0\xcc\x60\xf3\x00\x07\xc2\xc4\xd2\xa3\xcb\x88\xfb\x6b\xeb\x58\x0e\x62\x81\x47\x11\x4f\xfc\x6a\x4e\x39\xb1\x9e\x71\x8f\xc2\xcd\x0f\xa5\xaf\x68\x86\x49\xab\xe3\xdb\x58\xd0\x70\x72\x03\x28\x3b\x6b\xdc\xa0\x5f\x49\xfb\x16\xb3\x61\x8f\xcf\x4d\xd0\x1c\xb2\xef\x35\x09", 96); *(uint8_t*)0x2000000066dc = 9; *(uint8_t*)0x2000000066dd = 5; *(uint8_t*)0x2000000066de = 4; *(uint8_t*)0x2000000066df = 0; *(uint16_t*)0x2000000066e0 = 0x20; *(uint8_t*)0x2000000066e2 = 1; *(uint8_t*)0x2000000066e3 = 2; *(uint8_t*)0x2000000066e4 = 5; *(uint8_t*)0x2000000066e5 = 0x4e; *(uint8_t*)0x2000000066e6 = 0xa; memcpy((void*)0x2000000066e7, "\xaa\xde\x99\xcc\xf3\x48\x06\x1a\xd9\x22\x25\xe0\x5a\x39\x6a\x2e\xbe\x89\x2c\xa6\x5d\xe9\xef\xa6\x65\x82\x1e\x34\x20\x0c\x5c\xaa\x94\x3c\x9b\x1a\x3e\xb1\x08\x28\xe1\x38\x15\xe6\x12\x0c\x47\x87\xa4\xd3\x95\xb1\xe3\x2a\x8b\xa1\xff\xb9\x91\x37\x58\x79\xd5\x17\x86\x2d\xe6\xe9\xcb\x6f\x72\x33\x35\xdd\x15\x6a", 76); *(uint8_t*)0x200000006733 = 9; *(uint8_t*)0x200000006734 = 5; *(uint8_t*)0x200000006735 = 3; *(uint8_t*)0x200000006736 = 0xc; *(uint16_t*)0x200000006737 = 0x3ff; *(uint8_t*)0x200000006739 = 7; *(uint8_t*)0x20000000673a = 0; *(uint8_t*)0x20000000673b = 0x7f; *(uint8_t*)0x20000000673c = 0x33; *(uint8_t*)0x20000000673d = 0xe; memcpy((void*)0x20000000673e, "\x08\xb9\x28\xc5\x63\xb3\xfb\xc1\x36\xbe\xaf\x22\xbf\x46\xe0\xcf\x55\xe3\xf2\x62\x48\x5f\x30\xb2\x8a\x3f\x9a\x3e\xc9\x01\xce\x80\x66\xc6\x78\x8d\x46\x95\x26\xc5\x5b\xf0\xc2\xb3\xca\x50\x05\x53\x9a", 49); *(uint8_t*)0x20000000676f = 9; *(uint8_t*)0x200000006770 = 5; *(uint8_t*)0x200000006771 = 0xb; *(uint8_t*)0x200000006772 = 4; *(uint16_t*)0x200000006773 = 0x3ff; *(uint8_t*)0x200000006775 = 3; *(uint8_t*)0x200000006776 = 0x40; *(uint8_t*)0x200000006777 = 0x7f; *(uint8_t*)0x200000006778 = 7; *(uint8_t*)0x200000006779 = 0x25; *(uint8_t*)0x20000000677a = 1; *(uint8_t*)0x20000000677b = 0x87; *(uint8_t*)0x20000000677c = 9; *(uint16_t*)0x20000000677d = 0x4e; *(uint8_t*)0x20000000677f = 0xcb; *(uint8_t*)0x200000006780 = 0x11; memcpy((void*)0x200000006781, "\x3b\x9d\xca\xcc\x67\x90\x86\xd7\x8f\x92\x7a\xb6\x34\x93\x5a\x18\x81\x3b\x23\xcc\xef\xfe\xa6\x9b\x63\x0a\xa9\x7c\xc4\x69\x90\x7a\xfa\xc2\xa3\x03\x27\xad\xeb\x90\x1d\x9f\xb9\x00\xad\x82\x13\x80\x98\xcb\xff\x5f\xed\x7f\xee\x2c\x7d\x70\x12\x90\xce\x4a\xd0\x20\xa9\xda\x29\x67\x5f\x8f\x05\x13\x99\x87\x9d\xb5\x70\x22\xb8\x9c\x99\x01\x20\x51\x3a\xaa\x70\xc5\x18\x47\xb1\x28\xdd\x73\xbd\xea\x25\xcb\xb5\x45\xc1\xae\x83\x52\x02\x4c\xa9\x3c\xd7\xea\x88\x1c\xbb\x09\x20\xee\xde\xf0\x72\xef\xe9\xda\x61\xb7\xbd\x77\xa3\xc0\x85\xd7\x12\xc1\x42\xca\x88\xc3\x9f\x8e\xdd\x17\xd6\xfb\x9a\x7e\xf8\xd0\xfa\xd5\xa1\x5a\x33\x3e\x7e\xd0\x5e\x7e\x9a\xe6\xe2\xa4\x64\xc3\x15\x9a\xb1\xa6\x0e\x33\xaf\xbf\x29\xa2\xf6\x78\xc8\xc9\xe2\xf8\xf7\xa8\xd0\x3d\x55\x82\x52\x9b\x27\x7b\x4b\xe8\x55\x83\xe5\xd8\x1b\xc9\x57\x49\x77\x30\x42", 201); *(uint8_t*)0x20000000684a = 9; *(uint8_t*)0x20000000684b = 5; *(uint8_t*)0x20000000684c = 1; *(uint8_t*)0x20000000684d = 3; *(uint16_t*)0x20000000684e = 8; *(uint8_t*)0x200000006850 = 0xe; *(uint8_t*)0x200000006851 = 8; *(uint8_t*)0x200000006852 = 0x7f; *(uint8_t*)0x200000006853 = 0x72; *(uint8_t*)0x200000006854 = 6; memcpy((void*)0x200000006855, "\x6e\xe2\x41\x04\x69\xb7\xa8\xb2\x3e\x32\x55\xa5\x54\xb6\x3d\x5b\xeb\x1b\x34\xb4\x87\x18\x94\xe3\xdf\x69\xe7\x55\x8c\xe5\x6c\xc8\x3b\x83\xae\x1a\xc9\xd1\xde\xc0\x88\x2d\x04\x0a\x78\x01\xa3\x00\xc7\xea\xc2\x6d\x78\xd2\xda\xff\x6b\xd4\x7c\xac\xa5\x00\xd4\x6c\x1b\x5a\x0b\x9e\x1a\xda\x0e\x7b\x60\x6b\x6f\xd6\xb3\x9d\xb8\x1c\x7c\x95\x4c\x04\xd4\xed\xe9\x80\xea\x2c\xa8\x0b\x11\x3b\xdb\x4b\xe7\x47\xe1\xb6\xdc\x92\x81\xd7\x7e\x85\x68\x3a\xaa\xc6\x53\x4c", 112); *(uint8_t*)0x2000000068c5 = 9; *(uint8_t*)0x2000000068c6 = 5; *(uint8_t*)0x2000000068c7 = 0xb; *(uint8_t*)0x2000000068c8 = 0xc; *(uint16_t*)0x2000000068c9 = 0x60e1; *(uint8_t*)0x2000000068cb = 0; *(uint8_t*)0x2000000068cc = 1; *(uint8_t*)0x2000000068cd = 7; *(uint8_t*)0x2000000068ce = 9; *(uint8_t*)0x2000000068cf = 5; *(uint8_t*)0x2000000068d0 = 0; *(uint8_t*)0x2000000068d1 = 0; *(uint16_t*)0x2000000068d2 = 0x10; *(uint8_t*)0x2000000068d4 = 5; *(uint8_t*)0x2000000068d5 = 1; *(uint8_t*)0x2000000068d6 = 0x77; *(uint8_t*)0x2000000068d7 = 9; *(uint8_t*)0x2000000068d8 = 5; *(uint8_t*)0x2000000068d9 = 5; *(uint8_t*)0x2000000068da = 0; *(uint16_t*)0x2000000068db = 0x208; *(uint8_t*)0x2000000068dd = 0x1b; *(uint8_t*)0x2000000068de = 9; *(uint8_t*)0x2000000068df = 7; *(uint8_t*)0x2000000068e0 = 9; *(uint8_t*)0x2000000068e1 = 5; *(uint8_t*)0x2000000068e2 = 0xf; *(uint8_t*)0x2000000068e3 = 0; *(uint16_t*)0x2000000068e4 = 0x40; *(uint8_t*)0x2000000068e6 = 0x30; *(uint8_t*)0x2000000068e7 = 5; *(uint8_t*)0x2000000068e8 = 7; *(uint8_t*)0x2000000068e9 = 0x50; *(uint8_t*)0x2000000068ea = 6; memcpy((void*)0x2000000068eb, "\x01\x1d\xaf\x9a\xd3\xae\xa9\x56\xd0\x18\x4e\x89\x07\xd7\xb0\xb0\xa6\xaa\x9e\x92\x1a\xc6\x4d\x7a\x9e\x5a\x0c\xe5\xb5\xe0\xaf\xb4\x78\x68\xc9\xc4\xa7\x6b\x65\x09\x83\x5b\xf9\xee\x45\xa7\x89\x1e\xaa\xd1\x72\xa8\x75\x63\x4f\x7f\x36\x26\x01\x24\x66\x9b\x2d\x1b\x04\xc2\xfd\xa3\x8c\xc9\x36\x92\x1c\xb5\x61\x24\x5e\xfa", 78); *(uint8_t*)0x200000006939 = 0xb7; *(uint8_t*)0x20000000693a = 0x21; memcpy((void*)0x20000000693b, "\x53\x54\x2a\x37\x44\x9c\x9d\x1a\x4e\x69\x6a\x99\x52\x7d\x5a\xd5\xbd\xad\x1c\x7e\x72\x41\x28\xdf\x50\x29\x5a\xa0\xc6\x14\x01\xca\x6c\xd5\xcd\x35\x69\x77\xf6\x17\xe8\xb1\x14\x48\x46\x62\x69\x11\x6a\xf9\x3b\x9d\xce\x05\xde\xd4\x87\x92\x71\x9f\x65\xbf\xa9\x1d\xa1\x6b\x85\xee\x1d\x62\x36\x08\x4d\x81\x70\xf9\x7c\x0a\x74\xf1\x02\x66\x3c\x64\x5b\x0e\xe1\xb0\xfa\x79\x04\xe6\x46\x43\x8d\x8b\x16\x21\x86\x04\x56\x1c\x1a\xbb\x98\x28\x9e\x3e\xcb\xa8\x8e\x78\xf6\x73\x61\x47\x87\x74\x46\x2a\x4d\x82\x74\x96\x46\x45\x20\x04\xb2\x48\x20\x82\xe9\xc1\xb2\xf2\x97\x24\x19\xf6\xf7\x52\xe1\xbe\xc5\xe1\x92\x5f\xce\x21\x5e\xdb\x82\x65\x34\x4d\xa8\x5b\x85\x16\x4d\xb3\xc6\x33\xe4\xe4\x31\xfe\xc4\xc6\x09\x66\x4e\xac\x2b\x6b\x1f\x5f\x7b\xdc\x10", 181); *(uint8_t*)0x2000000069f0 = 9; *(uint8_t*)0x2000000069f1 = 5; *(uint8_t*)0x2000000069f2 = 0xc; *(uint8_t*)0x2000000069f3 = 0x10; *(uint16_t*)0x2000000069f4 = 0x10; *(uint8_t*)0x2000000069f6 = 3; *(uint8_t*)0x2000000069f7 = 0xf9; *(uint8_t*)0x2000000069f8 = -1; *(uint8_t*)0x2000000069f9 = 0xba; *(uint8_t*)0x2000000069fa = 0x23; memcpy((void*)0x2000000069fb, "\x5c\x48\xa5\x1f\x46\xfa\x07\x8d\x84\xce\x43\x4e\x72\x2a\x7f\xa4\xe7\x02\x1a\xe9\xd9\xb7\x66\x77\x36\x6d\xe6\xa1\x0a\xb3\xe9\x4e\x09\x69\xd7\xfc\x2a\x24\x53\x6e\x11\x50\xd9\x46\x72\xc5\x41\x8b\x02\x95\x1d\xef\x7e\x20\xc7\xdf\xe0\xaa\x26\xad\xbf\x0b\xfd\x8f\x6d\xd3\x51\xfa\x30\x99\x07\x13\x53\x71\x34\xaf\x9c\x14\xfa\x84\xde\xe2\xb9\x5a\xf8\xe1\x34\x54\x2b\x5a\x1a\xd5\x40\x32\x9a\x97\xcb\xdd\x1a\x24\x22\xf1\x3e\x6e\x03\xb4\x9f\x71\x05\xa6\xbf\x49\x00\xea\x72\x3f\xbe\x14\xf2\x1d\x18\x2a\xee\xf2\xcf\x51\x62\x59\x1f\x8b\xd3\x8b\x85\xd4\x5d\x72\x3c\xef\x02\x13\x2b\x5e\x45\x46\x7d\xd8\xd4\x30\xc3\x78\xb8\xbf\x2d\x98\x40\x32\x67\x01\x03\x79\xde\x7b\xd0\x4c\x80\x0d\xfd\x5f\xae\x0c\x0d\xda\xc0\xb5\xcf\xfd\xe9\x8c\xa4\x00\xdc\xe3\x0d\xdd", 184); *(uint8_t*)0x200000006ab3 = 9; *(uint8_t*)0x200000006ab4 = 4; *(uint8_t*)0x200000006ab5 = 0xfc; *(uint8_t*)0x200000006ab6 = 4; *(uint8_t*)0x200000006ab7 = 1; *(uint8_t*)0x200000006ab8 = -1; *(uint8_t*)0x200000006ab9 = 6; *(uint8_t*)0x200000006aba = 0x39; *(uint8_t*)0x200000006abb = 0xc; *(uint8_t*)0x200000006abc = 9; *(uint8_t*)0x200000006abd = 5; *(uint8_t*)0x200000006abe = 0; *(uint8_t*)0x200000006abf = 2; *(uint16_t*)0x200000006ac0 = 0x400; *(uint8_t*)0x200000006ac2 = 9; *(uint8_t*)0x200000006ac3 = 0xdf; *(uint8_t*)0x200000006ac4 = 2; *(uint8_t*)0x200000006ac5 = 7; *(uint8_t*)0x200000006ac6 = 0x25; *(uint8_t*)0x200000006ac7 = 1; *(uint8_t*)0x200000006ac8 = 3; *(uint8_t*)0x200000006ac9 = 8; *(uint16_t*)0x200000006aca = 0x8000; *(uint8_t*)0x200000006acc = 9; *(uint8_t*)0x200000006acd = 4; *(uint8_t*)0x200000006ace = 0x9d; *(uint8_t*)0x200000006acf = 1; *(uint8_t*)0x200000006ad0 = 3; *(uint8_t*)0x200000006ad1 = 0x48; *(uint8_t*)0x200000006ad2 = 0x48; *(uint8_t*)0x200000006ad3 = 0x40; *(uint8_t*)0x200000006ad4 = 0xa; *(uint8_t*)0x200000006ad5 = 9; *(uint8_t*)0x200000006ad6 = 5; *(uint8_t*)0x200000006ad7 = 1; *(uint8_t*)0x200000006ad8 = 0x10; *(uint16_t*)0x200000006ad9 = 0x40; *(uint8_t*)0x200000006adb = 2; *(uint8_t*)0x200000006adc = 0xf1; *(uint8_t*)0x200000006add = 0xc; *(uint8_t*)0x200000006ade = 7; *(uint8_t*)0x200000006adf = 0x25; *(uint8_t*)0x200000006ae0 = 1; *(uint8_t*)0x200000006ae1 = 0x81; *(uint8_t*)0x200000006ae2 = 0x81; *(uint16_t*)0x200000006ae3 = 5; *(uint8_t*)0x200000006ae5 = 9; *(uint8_t*)0x200000006ae6 = 5; *(uint8_t*)0x200000006ae7 = 7; *(uint8_t*)0x200000006ae8 = 8; *(uint16_t*)0x200000006ae9 = 0x40; *(uint8_t*)0x200000006aeb = 6; *(uint8_t*)0x200000006aec = 0; *(uint8_t*)0x200000006aed = 1; *(uint8_t*)0x200000006aee = 7; *(uint8_t*)0x200000006aef = 0x25; *(uint8_t*)0x200000006af0 = 1; *(uint8_t*)0x200000006af1 = 2; *(uint8_t*)0x200000006af2 = 0; *(uint16_t*)0x200000006af3 = 0x10; *(uint8_t*)0x200000006af5 = 6; *(uint8_t*)0x200000006af6 = 0xe; memcpy((void*)0x200000006af7, "\x55\x5d\xc7\x8c", 4); *(uint8_t*)0x200000006afb = 9; *(uint8_t*)0x200000006afc = 5; *(uint8_t*)0x200000006afd = 5; *(uint8_t*)0x200000006afe = 4; *(uint16_t*)0x200000006aff = 0x200; *(uint8_t*)0x200000006b01 = 9; *(uint8_t*)0x200000006b02 = 0x40; *(uint8_t*)0x200000006b03 = 3; *(uint32_t*)0x200000006c00 = 0xa; *(uint64_t*)0x200000006c04 = 0x200000006b40; *(uint8_t*)0x200000006b40 = 0xa; *(uint8_t*)0x200000006b41 = 6; *(uint16_t*)0x200000006b42 = 0x200; *(uint8_t*)0x200000006b44 = 0x3b; *(uint8_t*)0x200000006b45 = 5; *(uint8_t*)0x200000006b46 = 9; *(uint8_t*)0x200000006b47 = 0x40; *(uint8_t*)0x200000006b48 = 0xa4; *(uint8_t*)0x200000006b49 = 0; *(uint32_t*)0x200000006c0c = 0x30; *(uint64_t*)0x200000006c10 = 0x200000006b80; *(uint8_t*)0x200000006b80 = 5; *(uint8_t*)0x200000006b81 = 0xf; *(uint16_t*)0x200000006b82 = 0x30; *(uint8_t*)0x200000006b84 = 3; *(uint8_t*)0x200000006b85 = 3; *(uint8_t*)0x200000006b86 = 0x10; *(uint8_t*)0x200000006b87 = 0xb; *(uint8_t*)0x200000006b88 = 0x10; *(uint8_t*)0x200000006b89 = 0x10; *(uint8_t*)0x200000006b8a = 0xa; *(uint8_t*)0x200000006b8b = 0x1c; STORE_BY_BITMASK(uint32_t, , 0x200000006b8c, 1, 0, 5); STORE_BY_BITMASK(uint32_t, , 0x200000006b8c, 0x7ffffd3, 5, 27); *(uint16_t*)0x200000006b90 = 0xff00; *(uint16_t*)0x200000006b92 = 0x1fb; *(uint32_t*)0x200000006b94 = 0; *(uint8_t*)0x200000006b98 = 0x18; *(uint8_t*)0x200000006b99 = 0x10; *(uint8_t*)0x200000006b9a = 0xa; *(uint8_t*)0x200000006b9b = 0xf; STORE_BY_BITMASK(uint32_t, , 0x200000006b9c, 3, 0, 5); STORE_BY_BITMASK(uint32_t, , 0x200000006b9c, 8, 5, 27); *(uint16_t*)0x200000006ba0 = 0xff00; *(uint16_t*)0x200000006ba2 = 0xd00; *(uint32_t*)0x200000006ba4 = 0; *(uint32_t*)0x200000006ba8 = 0xffc0cf; *(uint32_t*)0x200000006bac = 0xff0000; *(uint32_t*)0x200000006c18 = 1; *(uint32_t*)0x200000006c1c = 4; *(uint64_t*)0x200000006c20 = 0x200000006bc0; *(uint8_t*)0x200000006bc0 = 4; *(uint8_t*)0x200000006bc1 = 3; *(uint16_t*)0x200000006bc2 = 0x42f; res = -1; res = syz_usb_connect(/*speed=USB_SPEED_HIGH*/3, /*dev_len=*/0x504, /*dev=*/0x200000006600, /*conn_descs=*/0x200000006c00); if (res != -1) r[37] = res; break; case 55: *(uint8_t*)0x200000006c40 = 0x12; *(uint8_t*)0x200000006c41 = 1; *(uint16_t*)0x200000006c42 = 0x200; *(uint8_t*)0x200000006c44 = -1; *(uint8_t*)0x200000006c45 = -1; *(uint8_t*)0x200000006c46 = -1; *(uint8_t*)0x200000006c47 = 0x40; *(uint16_t*)0x200000006c48 = 0xcf3; *(uint16_t*)0x200000006c4a = 0x9271; *(uint16_t*)0x200000006c4c = 0x108; *(uint8_t*)0x200000006c4e = 1; *(uint8_t*)0x200000006c4f = 2; *(uint8_t*)0x200000006c50 = 3; *(uint8_t*)0x200000006c51 = 1; *(uint8_t*)0x200000006c52 = 9; *(uint8_t*)0x200000006c53 = 2; *(uint16_t*)0x200000006c54 = 0x48; *(uint8_t*)0x200000006c56 = 1; *(uint8_t*)0x200000006c57 = 1; *(uint8_t*)0x200000006c58 = 0; *(uint8_t*)0x200000006c59 = 0x80; *(uint8_t*)0x200000006c5a = 0xfa; *(uint8_t*)0x200000006c5b = 9; *(uint8_t*)0x200000006c5c = 4; *(uint8_t*)0x200000006c5d = 0; *(uint8_t*)0x200000006c5e = 0; *(uint8_t*)0x200000006c5f = 6; *(uint8_t*)0x200000006c60 = -1; *(uint8_t*)0x200000006c61 = 0; *(uint8_t*)0x200000006c62 = 0; *(uint8_t*)0x200000006c63 = 0; *(uint8_t*)0x200000006c64 = 9; *(uint8_t*)0x200000006c65 = 5; *(uint8_t*)0x200000006c66 = 1; *(uint8_t*)0x200000006c67 = 2; *(uint16_t*)0x200000006c68 = 0x200; *(uint8_t*)0x200000006c6a = 0; *(uint8_t*)0x200000006c6b = 0; *(uint8_t*)0x200000006c6c = 0; *(uint8_t*)0x200000006c6d = 9; *(uint8_t*)0x200000006c6e = 5; *(uint8_t*)0x200000006c6f = 0x82; *(uint8_t*)0x200000006c70 = 2; *(uint16_t*)0x200000006c71 = 0x200; *(uint8_t*)0x200000006c73 = 0; *(uint8_t*)0x200000006c74 = 0; *(uint8_t*)0x200000006c75 = 0; *(uint8_t*)0x200000006c76 = 9; *(uint8_t*)0x200000006c77 = 5; *(uint8_t*)0x200000006c78 = 0x83; *(uint8_t*)0x200000006c79 = 3; *(uint16_t*)0x200000006c7a = 0x40; *(uint8_t*)0x200000006c7c = 1; *(uint8_t*)0x200000006c7d = 0; *(uint8_t*)0x200000006c7e = 0; *(uint8_t*)0x200000006c7f = 9; *(uint8_t*)0x200000006c80 = 5; *(uint8_t*)0x200000006c81 = 4; *(uint8_t*)0x200000006c82 = 3; *(uint16_t*)0x200000006c83 = 0x40; *(uint8_t*)0x200000006c85 = 1; *(uint8_t*)0x200000006c86 = 0; *(uint8_t*)0x200000006c87 = 0; *(uint8_t*)0x200000006c88 = 9; *(uint8_t*)0x200000006c89 = 5; *(uint8_t*)0x200000006c8a = 5; *(uint8_t*)0x200000006c8b = 2; *(uint16_t*)0x200000006c8c = 0x200; *(uint8_t*)0x200000006c8e = 0; *(uint8_t*)0x200000006c8f = 0; *(uint8_t*)0x200000006c90 = 0; *(uint8_t*)0x200000006c91 = 9; *(uint8_t*)0x200000006c92 = 5; *(uint8_t*)0x200000006c93 = 6; *(uint8_t*)0x200000006c94 = 2; *(uint16_t*)0x200000006c95 = 0x200; *(uint8_t*)0x200000006c97 = 0; *(uint8_t*)0x200000006c98 = 0; *(uint8_t*)0x200000006c99 = 0; res = -1; res = syz_usb_connect_ath9k(/*speed=*/3, /*dev_len=*/0x5a, /*dev=*/0x200000006c40, /*conn_descs=*/0); if (res != -1) r[38] = res; break; case 56: *(uint8_t*)0x200000006cc0 = 0x12; *(uint8_t*)0x200000006cc1 = 1; *(uint16_t*)0x200000006cc2 = 0x310; *(uint8_t*)0x200000006cc4 = 2; *(uint8_t*)0x200000006cc5 = 0; *(uint8_t*)0x200000006cc6 = 0; *(uint8_t*)0x200000006cc7 = 8; *(uint16_t*)0x200000006cc8 = 0x525; *(uint16_t*)0x200000006cca = 0xa4a1; *(uint16_t*)0x200000006ccc = 0x40; *(uint8_t*)0x200000006cce = 1; *(uint8_t*)0x200000006ccf = 2; *(uint8_t*)0x200000006cd0 = 3; *(uint8_t*)0x200000006cd1 = 1; *(uint8_t*)0x200000006cd2 = 9; *(uint8_t*)0x200000006cd3 = 2; *(uint16_t*)0x200000006cd4 = 0x7d; *(uint8_t*)0x200000006cd6 = 1; *(uint8_t*)0x200000006cd7 = 1; *(uint8_t*)0x200000006cd8 = 6; *(uint8_t*)0x200000006cd9 = 0x10; *(uint8_t*)0x200000006cda = 0xb; *(uint8_t*)0x200000006cdb = 9; *(uint8_t*)0x200000006cdc = 4; *(uint8_t*)0x200000006cdd = 0; *(uint8_t*)0x200000006cde = 4; *(uint8_t*)0x200000006cdf = 3; *(uint8_t*)0x200000006ce0 = 2; *(uint8_t*)0x200000006ce1 = 6; *(uint8_t*)0x200000006ce2 = 0; *(uint8_t*)0x200000006ce3 = 0xe; *(uint8_t*)0x200000006ce4 = 0xb; *(uint8_t*)0x200000006ce5 = 0x24; *(uint8_t*)0x200000006ce6 = 6; *(uint8_t*)0x200000006ce7 = 0; *(uint8_t*)0x200000006ce8 = 0; memcpy((void*)0x200000006ce9, "\xd6\x01\x32\xf1\x49\xc6", 6); *(uint8_t*)0x200000006cef = 5; *(uint8_t*)0x200000006cf0 = 0x24; *(uint8_t*)0x200000006cf1 = 0; *(uint16_t*)0x200000006cf2 = 0xbb8; *(uint8_t*)0x200000006cf4 = 0xd; *(uint8_t*)0x200000006cf5 = 0x24; *(uint8_t*)0x200000006cf6 = 0xf; *(uint8_t*)0x200000006cf7 = 1; *(uint32_t*)0x200000006cf8 = 7; *(uint16_t*)0x200000006cfc = 0x32a; *(uint16_t*)0x200000006cfe = 8; *(uint8_t*)0x200000006d00 = 0x1f; *(uint8_t*)0x200000006d01 = 5; *(uint8_t*)0x200000006d02 = 0x24; *(uint8_t*)0x200000006d03 = 0x15; *(uint16_t*)0x200000006d04 = 0x101; *(uint8_t*)0x200000006d06 = 0x15; *(uint8_t*)0x200000006d07 = 0x24; *(uint8_t*)0x200000006d08 = 0x12; *(uint16_t*)0x200000006d09 = 0xfffc; *(uint64_t*)0x200000006d0b = 0x14f5e048ba817a3; *(uint64_t*)0x200000006d13 = 0x2a397ecbffc007a6; *(uint8_t*)0x200000006d1b = 7; *(uint8_t*)0x200000006d1c = 0x24; *(uint8_t*)0x200000006d1d = 0xa; *(uint8_t*)0x200000006d1e = 0xb; *(uint8_t*)0x200000006d1f = 9; *(uint8_t*)0x200000006d20 = 0xf; *(uint8_t*)0x200000006d21 = 2; *(uint8_t*)0x200000006d22 = 5; *(uint8_t*)0x200000006d23 = 0x24; *(uint8_t*)0x200000006d24 = 1; *(uint8_t*)0x200000006d25 = 1; *(uint8_t*)0x200000006d26 = -1; *(uint8_t*)0x200000006d27 = 5; *(uint8_t*)0x200000006d28 = 0x24; *(uint8_t*)0x200000006d29 = 0x15; *(uint16_t*)0x200000006d2a = 0x7ff; *(uint8_t*)0x200000006d2c = 8; *(uint8_t*)0x200000006d2d = 0x24; *(uint8_t*)0x200000006d2e = 0x1c; *(uint16_t*)0x200000006d2f = 5; *(uint8_t*)0x200000006d31 = 0x32; *(uint16_t*)0x200000006d32 = 0xa; *(uint8_t*)0x200000006d34 = 9; *(uint8_t*)0x200000006d35 = 5; *(uint8_t*)0x200000006d36 = 0x81; *(uint8_t*)0x200000006d37 = 3; *(uint16_t*)0x200000006d38 = 0x10; *(uint8_t*)0x200000006d3a = 7; *(uint8_t*)0x200000006d3b = 0x99; *(uint8_t*)0x200000006d3c = 0xb2; *(uint8_t*)0x200000006d3d = 9; *(uint8_t*)0x200000006d3e = 5; *(uint8_t*)0x200000006d3f = 0x82; *(uint8_t*)0x200000006d40 = 2; *(uint16_t*)0x200000006d41 = 8; *(uint8_t*)0x200000006d43 = 0x1a; *(uint8_t*)0x200000006d44 = 7; *(uint8_t*)0x200000006d45 = 0xc4; *(uint8_t*)0x200000006d46 = 9; *(uint8_t*)0x200000006d47 = 5; *(uint8_t*)0x200000006d48 = 3; *(uint8_t*)0x200000006d49 = 2; *(uint16_t*)0x200000006d4a = 0x3ff; *(uint8_t*)0x200000006d4c = 0xa6; *(uint8_t*)0x200000006d4d = 3; *(uint8_t*)0x200000006d4e = 0xa7; *(uint32_t*)0x200000007240 = 0xa; *(uint64_t*)0x200000007244 = 0x200000006d80; *(uint8_t*)0x200000006d80 = 0xa; *(uint8_t*)0x200000006d81 = 6; *(uint16_t*)0x200000006d82 = 0x300; *(uint8_t*)0x200000006d84 = 0xfb; *(uint8_t*)0x200000006d85 = 3; *(uint8_t*)0x200000006d86 = 0xc; *(uint8_t*)0x200000006d87 = -1; *(uint8_t*)0x200000006d88 = 1; *(uint8_t*)0x200000006d89 = 0; *(uint32_t*)0x20000000724c = 0x3c; *(uint64_t*)0x200000007250 = 0x200000006dc0; *(uint8_t*)0x200000006dc0 = 5; *(uint8_t*)0x200000006dc1 = 0xf; *(uint16_t*)0x200000006dc2 = 0x3c; *(uint8_t*)0x200000006dc4 = 6; *(uint8_t*)0x200000006dc5 = 7; *(uint8_t*)0x200000006dc6 = 0x10; *(uint8_t*)0x200000006dc7 = 2; STORE_BY_BITMASK(uint32_t, , 0x200000006dc8, 4, 0, 8); STORE_BY_BITMASK(uint32_t, , 0x200000006dc9, 7, 0, 4); STORE_BY_BITMASK(uint32_t, , 0x200000006dc9, 7, 4, 4); STORE_BY_BITMASK(uint32_t, , 0x200000006dca, 0x56a9, 0, 16); *(uint8_t*)0x200000006dcc = 0xb; *(uint8_t*)0x200000006dcd = 0x10; *(uint8_t*)0x200000006dce = 1; *(uint8_t*)0x200000006dcf = 4; *(uint16_t*)0x200000006dd0 = 0x42; *(uint8_t*)0x200000006dd2 = 2; *(uint8_t*)0x200000006dd3 = 3; *(uint16_t*)0x200000006dd4 = 0x63ac; *(uint8_t*)0x200000006dd6 = 9; *(uint8_t*)0x200000006dd7 = 3; *(uint8_t*)0x200000006dd8 = 0x10; *(uint8_t*)0x200000006dd9 = 0xb; *(uint8_t*)0x200000006dda = 7; *(uint8_t*)0x200000006ddb = 0x10; *(uint8_t*)0x200000006ddc = 2; STORE_BY_BITMASK(uint32_t, , 0x200000006ddd, 0x1a, 0, 8); STORE_BY_BITMASK(uint32_t, , 0x200000006dde, 7, 0, 4); STORE_BY_BITMASK(uint32_t, , 0x200000006dde, 0xb, 4, 4); STORE_BY_BITMASK(uint32_t, , 0x200000006ddf, 0xd5, 0, 16); *(uint8_t*)0x200000006de1 = 0x10; *(uint8_t*)0x200000006de2 = 0x10; *(uint8_t*)0x200000006de3 = 0xa; *(uint8_t*)0x200000006de4 = 0x7f; STORE_BY_BITMASK(uint32_t, , 0x200000006de5, 1, 0, 5); STORE_BY_BITMASK(uint32_t, , 0x200000006de5, 0x12f, 5, 27); *(uint16_t*)0x200000006de9 = 0xf00; *(uint16_t*)0x200000006deb = 1; *(uint32_t*)0x200000006ded = 0x3fc0; *(uint8_t*)0x200000006df1 = 0xb; *(uint8_t*)0x200000006df2 = 0x10; *(uint8_t*)0x200000006df3 = 1; *(uint8_t*)0x200000006df4 = 8; *(uint16_t*)0x200000006df5 = 0x40; *(uint8_t*)0x200000006df7 = 7; *(uint8_t*)0x200000006df8 = 5; *(uint16_t*)0x200000006df9 = 2; *(uint8_t*)0x200000006dfb = 4; *(uint32_t*)0x200000007258 = 8; *(uint32_t*)0x20000000725c = 0x78; *(uint64_t*)0x200000007260 = 0x200000006e00; *(uint8_t*)0x200000006e00 = 0x78; *(uint8_t*)0x200000006e01 = 3; memcpy((void*)0x200000006e02, "\xd7\xb4\xca\xdb\x72\xdc\xe2\x7c\xa7\xfb\x52\x09\xaa\xd1\xb3\x58\x5c\x81\x88\xf0\x61\x26\xd3\xf1\x8e\xdd\x4c\xfa\x47\xad\xdb\xd2\xa6\x71\x5d\xd4\xad\xfa\x69\x7f\x02\xbc\xb0\x89\xed\x20\x13\x26\x88\x85\xf9\xc7\x85\xbd\x7c\x5d\x4e\xe5\x0d\xe3\xce\xcd\x7a\x9d\x0b\x7b\x2e\x70\x82\x26\xe8\xac\xb1\xe9\x08\xb1\xf5\xc0\xc2\xa8\x13\x24\x65\xe4\x51\xfe\x49\xf1\x5e\x60\xc8\xd3\xb9\xc8\x43\x05\xd0\xdd\x8f\x63\x44\x80\x05\x02\x59\xca\xc3\xce\x9c\xfc\x95\x09\x2b\xd7\xe4\x91\x86\x6d", 118); *(uint32_t*)0x200000007268 = 0x13; *(uint64_t*)0x20000000726c = 0x200000006e80; *(uint8_t*)0x200000006e80 = 0x13; *(uint8_t*)0x200000006e81 = 3; memcpy((void*)0x200000006e82, "\x7d\x97\xd9\xeb\x8a\xf2\x94\x3b\x99\x85\xd3\x0c\xaa\xea\xd8\x9b\x5a", 17); *(uint32_t*)0x200000007274 = 4; *(uint64_t*)0x200000007278 = 0x200000006ec0; *(uint8_t*)0x200000006ec0 = 4; *(uint8_t*)0x200000006ec1 = 3; *(uint16_t*)0x200000006ec2 = 0x44a; *(uint32_t*)0x200000007280 = 4; *(uint64_t*)0x200000007284 = 0x200000006f00; *(uint8_t*)0x200000006f00 = 4; *(uint8_t*)0x200000006f01 = 3; *(uint16_t*)0x200000006f02 = 0x1c09; *(uint32_t*)0x20000000728c = 0x93; *(uint64_t*)0x200000007290 = 0x200000006f40; *(uint8_t*)0x200000006f40 = 0x93; *(uint8_t*)0x200000006f41 = 3; memcpy((void*)0x200000006f42, "\xa7\xe5\x52\x92\x38\xf7\x96\xc9\x00\x0c\x75\x3f\x41\xb8\x18\x31\x40\xf3\x91\x4b\x76\xbf\x1c\x42\x8e\xbe\x8d\x39\xc6\xf0\x72\xb4\x81\xec\xad\x74\x62\x74\xe7\xc5\x38\x79\x0d\x8c\x73\x0d\x20\x51\x7a\x22\x44\xa3\x78\x1b\x11\x5c\x07\xd4\x0e\x9e\xc9\xc0\x59\xf1\x2d\x0d\x15\xf4\x6c\xcf\x0c\xde\x26\xef\xa9\xd0\x2a\x11\x9e\x2c\xc5\x62\x7c\x7f\x42\x41\x24\x4d\x08\x43\xef\x00\x18\xb1\x2f\xc3\xcd\x46\x7b\x5f\xdc\xe5\x8a\x69\x75\xd0\x7a\xc3\x52\xa4\x2f\x16\x15\x17\x8d\xcb\x09\x90\xae\xca\x46\x46\x13\x06\x81\x6b\xec\xde\xb8\x96\xba\xc7\x65\xde\xd8\x1e\xbd\x75\xba\x4d\x97\x22\x9b\x15\xa9", 145); *(uint32_t*)0x200000007298 = 0xc2; *(uint64_t*)0x20000000729c = 0x200000007000; *(uint8_t*)0x200000007000 = 0xc2; *(uint8_t*)0x200000007001 = 3; memcpy((void*)0x200000007002, "\xd5\xa3\xd4\x83\x01\x2b\x31\xe4\x9d\xfa\x33\xfd\x95\x93\xb4\xb6\x68\xaa\x6f\x3f\x39\x30\x18\x37\xd9\x51\xda\xf2\x56\x31\x68\x19\xf5\xe7\x1f\xa6\x51\xbb\x06\xb2\xaf\x65\xaf\x27\xc7\xbf\x0f\xda\x1e\xaa\x1e\x32\x23\x1b\x75\xf4\xd0\x6d\x49\x23\xc7\x60\x13\xe9\xd7\x6a\x12\x20\x28\x16\xff\x87\x40\xa9\xfb\x4f\x2e\xce\xb2\x7b\xd2\xe1\xab\x1e\x7b\xd4\xba\x73\x14\xb3\x3d\x15\xe0\xfe\x65\xaa\x2b\x2e\x7f\xfb\x32\x36\xcb\x61\x54\x93\x39\x1f\xea\xb3\xbf\xb8\x28\x18\x2f\xb6\x0c\x4f\xd6\xfe\xf4\x22\xe1\x06\xf3\x84\xbe\x63\x39\x05\xca\x1a\xaf\x83\xd9\xdd\xb2\xa2\x90\x2e\x2a\x11\x7d\xe4\xe5\x96\x14\x58\x09\xb3\xb3\x4b\x1e\xa4\x32\xb4\x12\x39\x1f\xfb\x25\xac\x25\x5e\x7d\xa1\x1d\x99\x4e\x7e\x9e\x98\xe0\x72\x3a\x27\x57\xe5\x80\x95\x9d\xae\x6f\xa7\xac\x2a\xfb\x8d\xc5\x38\x4b\x4a", 192); *(uint32_t*)0x2000000072a4 = 0x5b; *(uint64_t*)0x2000000072a8 = 0x200000007100; *(uint8_t*)0x200000007100 = 0x5b; *(uint8_t*)0x200000007101 = 3; memcpy((void*)0x200000007102, "\xa7\x94\x09\x09\x68\xe4\x6e\x97\xb7\x26\x9f\xca\xe0\xf8\x18\xbf\x9a\x99\xa5\x0d\xe6\x0e\x5c\xda\x68\x47\x21\xbe\x6d\xc3\x48\x20\xf9\x12\xc3\x38\xd7\xdc\x8a\xc5\x0d\x93\xfc\x92\xa2\xeb\xde\x1a\x02\x65\x20\x89\x72\x66\x08\xa9\xe5\x87\x7f\x4c\xac\xf9\x1b\x9e\xec\x5b\x5e\xb2\xfc\x7f\xa7\xbb\x3d\x26\x60\x75\x37\xf0\xe5\x5d\x00\x79\x3e\x7c\xf1\x3b\xbb\x36\x7e", 89); *(uint32_t*)0x2000000072b0 = 0x90; *(uint64_t*)0x2000000072b4 = 0x200000007180; *(uint8_t*)0x200000007180 = 0x90; *(uint8_t*)0x200000007181 = 3; memcpy((void*)0x200000007182, "\xf9\x92\x6b\x0d\xae\x8c\x46\x23\x52\x10\x5e\xd1\xc4\xd3\xff\x50\xcc\x9c\xe9\x82\xc3\x97\xe9\x2e\x57\x61\x01\x31\x71\x90\xc2\x32\x7a\x2b\xa7\x23\x84\x41\x49\xe5\x5f\x4b\x96\x1d\x0f\x0d\xef\xbc\x7e\xdb\x70\xf5\xd6\x11\x69\x07\x42\x65\xac\xd8\x1c\xee\xc5\xa1\x5b\x66\xa5\xe5\x00\x92\x36\xd0\x62\x99\x4a\xf9\xaf\xcb\xe0\x47\x36\xaa\xad\x6b\xb5\x5c\xb3\x0e\x05\x7c\x42\xd0\xdf\x74\x81\x60\x3c\x3c\x95\x9b\x5e\x4e\x20\xf0\x53\x82\xa9\xd9\xad\x4c\x01\x68\x0a\xe3\x59\x7e\xf4\x03\xde\xdf\x0b\x6c\x53\xfd\xc7\x0d\x13\xed\x11\x6e\xf9\xea\x90\x20\x93\xf1\xc9\xf4\xaf\x4c\xec\x25", 142); res = -1; res = syz_usb_connect(/*speed=USB_SPEED_SUPER_PLUS*/6, /*dev_len=*/0x8f, /*dev=*/0x200000006cc0, /*conn_descs=*/0x200000007240); if (res != -1) r[39] = res; break; case 57: *(uint32_t*)0x200000007480 = 0x2c; *(uint64_t*)0x200000007484 = 0x2000000072c0; *(uint8_t*)0x2000000072c0 = 0x40; *(uint8_t*)0x2000000072c1 = 7; *(uint32_t*)0x2000000072c2 = 0x1b; *(uint8_t*)0x2000000072c6 = 0x1b; *(uint8_t*)0x2000000072c7 = 0xa; memcpy((void*)0x2000000072c8, "\x90\x73\x0f\x1d\x9e\x91\xd2\xe1\xdf\x57\x71\x43\xe1\x8c\x68\x0e\xac\xe6\xd6\xc1\x22\x99\x24\x61\x28", 25); *(uint64_t*)0x20000000748c = 0x200000007300; *(uint8_t*)0x200000007300 = 0; *(uint8_t*)0x200000007301 = 3; *(uint32_t*)0x200000007302 = 0x44; *(uint8_t*)0x200000007306 = 0x44; *(uint8_t*)0x200000007307 = 3; memcpy((void*)0x200000007308, "\x87\xd7\x4d\xd4\x60\x96\x80\x9a\x8f\x49\x88\xdd\xaa\x95\xa5\x32\xfb\xc2\x2d\x85\x85\xd1\x59\x28\x57\xad\x0a\xb0\x0c\x17\xa4\xfe\xf3\xb2\x29\xa0\x2f\xe0\xe3\x64\x93\x16\xbe\xd9\xf4\x4f\x58\x8b\x1f\x0b\x47\xbc\x86\x70\x51\x29\x44\x09\x38\xbd\x68\xa2\x9a\x84\xf8\x29", 66); *(uint64_t*)0x200000007494 = 0x200000007380; *(uint8_t*)0x200000007380 = 0; *(uint8_t*)0x200000007381 = 0xf; *(uint32_t*)0x200000007382 = 0x41; *(uint8_t*)0x200000007386 = 5; *(uint8_t*)0x200000007387 = 0xf; *(uint16_t*)0x200000007388 = 0x41; *(uint8_t*)0x20000000738a = 4; *(uint8_t*)0x20000000738b = 0x20; *(uint8_t*)0x20000000738c = 0x10; *(uint8_t*)0x20000000738d = 0xa; *(uint8_t*)0x20000000738e = 0; STORE_BY_BITMASK(uint32_t, , 0x20000000738f, 5, 0, 5); STORE_BY_BITMASK(uint32_t, , 0x20000000738f, 0xe85, 5, 27); *(uint16_t*)0x200000007393 = 0xf00; *(uint16_t*)0x200000007395 = 3; *(uint32_t*)0x200000007397 = 0xff00a0; *(uint32_t*)0x20000000739b = 0xff00f0; *(uint32_t*)0x20000000739f = 0x30; *(uint32_t*)0x2000000073a3 = 0xf; *(uint32_t*)0x2000000073a7 = 0xdfbf; *(uint8_t*)0x2000000073ab = 7; *(uint8_t*)0x2000000073ac = 0x10; *(uint8_t*)0x2000000073ad = 2; STORE_BY_BITMASK(uint32_t, , 0x2000000073ae, 4, 0, 8); STORE_BY_BITMASK(uint32_t, , 0x2000000073af, 4, 0, 4); STORE_BY_BITMASK(uint32_t, , 0x2000000073af, 1, 4, 4); STORE_BY_BITMASK(uint32_t, , 0x2000000073b0, 0xff, 0, 16); *(uint8_t*)0x2000000073b2 = 0xb; *(uint8_t*)0x2000000073b3 = 0x10; *(uint8_t*)0x2000000073b4 = 1; *(uint8_t*)0x2000000073b5 = 2; *(uint16_t*)0x2000000073b6 = 1; *(uint8_t*)0x2000000073b8 = 1; *(uint8_t*)0x2000000073b9 = 3; *(uint16_t*)0x2000000073ba = 9; *(uint8_t*)0x2000000073bc = 8; *(uint8_t*)0x2000000073bd = 0xa; *(uint8_t*)0x2000000073be = 0x10; *(uint8_t*)0x2000000073bf = 3; *(uint8_t*)0x2000000073c0 = 2; *(uint16_t*)0x2000000073c1 = 4; *(uint8_t*)0x2000000073c3 = 3; *(uint8_t*)0x2000000073c4 = 0xb6; *(uint16_t*)0x2000000073c5 = 5; *(uint64_t*)0x20000000749c = 0x200000007400; *(uint8_t*)0x200000007400 = 0x20; *(uint8_t*)0x200000007401 = 0x29; *(uint32_t*)0x200000007402 = 0xf; *(uint8_t*)0x200000007406 = 0xf; *(uint8_t*)0x200000007407 = 0x29; *(uint8_t*)0x200000007408 = 0xf; *(uint16_t*)0x200000007409 = 4; *(uint8_t*)0x20000000740b = 6; *(uint8_t*)0x20000000740c = 0x32; memcpy((void*)0x20000000740d, "\xb2\xc8\x4f\x72", 4); memcpy((void*)0x200000007411, "\xf5\xfb\x7b\x90", 4); *(uint64_t*)0x2000000074a4 = 0x200000007440; *(uint8_t*)0x200000007440 = 0x20; *(uint8_t*)0x200000007441 = 0x2a; *(uint32_t*)0x200000007442 = 0xc; *(uint8_t*)0x200000007446 = 0xc; *(uint8_t*)0x200000007447 = 0x2a; *(uint8_t*)0x200000007448 = 0x3a; *(uint16_t*)0x200000007449 = 0x60; *(uint8_t*)0x20000000744b = 4; *(uint8_t*)0x20000000744c = 4; *(uint8_t*)0x20000000744d = 7; *(uint16_t*)0x20000000744e = 0x8001; *(uint16_t*)0x200000007450 = 8; *(uint32_t*)0x200000007980 = 0x84; *(uint64_t*)0x200000007984 = 0x2000000074c0; *(uint8_t*)0x2000000074c0 = 0; *(uint8_t*)0x2000000074c1 = 0; *(uint32_t*)0x2000000074c2 = 0xcf; memcpy((void*)0x2000000074c6, "\x9f\x51\xc6\xee\x54\xbf\xc1\xfc\x30\xd7\x87\x49\x9a\xb2\x44\x93\xc2\xf3\x0f\x78\xfe\x08\x8e\x72\x4a\xd2\x9b\xad\xb6\xc2\x40\x68\x74\xa9\x09\xd8\x0e\x00\x00\x75\xbb\xe9\x2f\x6f\x4e\x8b\x35\x14\x48\x1d\x12\xb8\x69\xde\xb6\xf4\x7f\x3b\x45\x83\x69\xb7\xf0\x24\xfc\xc0\x23\x19\xe3\x8c\xb7\x46\x7c\x76\xb3\x70\xd3\x78\xee\x02\x56\xda\xa3\xac\xea\x1f\x71\xbe\x5e\x4c\x7d\x8a\x50\x03\x7b\xa8\x4e\x62\x44\x5b\xbd\x99\x0a\x26\xb4\x4f\x60\x19\x8d\x63\x50\x5f\xbf\x00\x5b\x96\x63\x7a\xbf\x5e\xb6\x92\xa2\xed\x0d\x58\x26\x92\xe3\xf2\x59\x38\x7e\xd9\xd1\x95\x59\x17\xdc\x53\xa2\x46\xeb\x20\xe2\x81\xe7\x83\x86\xed\x87\x34\xb8\x10\x75\xe4\x3b\x5b\x3e\x15\xea\x60\xdb\xd4\x97\xe0\x7a\xd8\x84\x79\x92\xdd\x87\x83\x1b\x20\xd0\x52\x63\xc1\x08\xd7\x01\x17\xe5\x21\x70\xef\xac\x17\x77\xd3\xd3\x76\x87\x63\x58\xc2\x29\x71\x72\xb2\xa0\x23\xb5\x2c\x05", 207); *(uint64_t*)0x20000000798c = 0x2000000075c0; *(uint8_t*)0x2000000075c0 = 0; *(uint8_t*)0x2000000075c1 = 0xa; *(uint32_t*)0x2000000075c2 = 1; *(uint8_t*)0x2000000075c6 = 2; *(uint64_t*)0x200000007994 = 0x200000007600; *(uint8_t*)0x200000007600 = 0; *(uint8_t*)0x200000007601 = 8; *(uint32_t*)0x200000007602 = 1; *(uint8_t*)0x200000007606 = 0xfc; *(uint64_t*)0x20000000799c = 0x200000007640; *(uint8_t*)0x200000007640 = 0x20; *(uint8_t*)0x200000007641 = 0; *(uint32_t*)0x200000007642 = 4; *(uint16_t*)0x200000007646 = 3; *(uint16_t*)0x200000007648 = 1; *(uint64_t*)0x2000000079a4 = 0x200000007680; *(uint8_t*)0x200000007680 = 0x20; *(uint8_t*)0x200000007681 = 0; *(uint32_t*)0x200000007682 = 4; *(uint16_t*)0x200000007686 = 0x1d20; *(uint16_t*)0x200000007688 = 0x20; *(uint64_t*)0x2000000079ac = 0x2000000076c0; *(uint8_t*)0x2000000076c0 = 0x40; *(uint8_t*)0x2000000076c1 = 7; *(uint32_t*)0x2000000076c2 = 2; *(uint16_t*)0x2000000076c6 = 0xfff8; *(uint64_t*)0x2000000079b4 = 0x200000007700; *(uint8_t*)0x200000007700 = 0x40; *(uint8_t*)0x200000007701 = 9; *(uint32_t*)0x200000007702 = 1; *(uint8_t*)0x200000007706 = 0xd; *(uint64_t*)0x2000000079bc = 0x200000007740; *(uint8_t*)0x200000007740 = 0x40; *(uint8_t*)0x200000007741 = 0xb; *(uint32_t*)0x200000007742 = 2; memcpy((void*)0x200000007746, "\x22\x89", 2); *(uint64_t*)0x2000000079c4 = 0x200000007780; *(uint8_t*)0x200000007780 = 0x40; *(uint8_t*)0x200000007781 = 0xf; *(uint32_t*)0x200000007782 = 2; *(uint16_t*)0x200000007786 = 2; *(uint64_t*)0x2000000079cc = 0x2000000077c0; *(uint8_t*)0x2000000077c0 = 0x40; *(uint8_t*)0x2000000077c1 = 0x13; *(uint32_t*)0x2000000077c2 = 6; memset((void*)0x2000000077c6, 255, 6); *(uint64_t*)0x2000000079d4 = 0x200000007800; *(uint8_t*)0x200000007800 = 0x40; *(uint8_t*)0x200000007801 = 0x17; *(uint32_t*)0x200000007802 = 6; memcpy((void*)0x200000007806, "\xee\xfa\x7a\x62\x01\x65", 6); *(uint64_t*)0x2000000079dc = 0x200000007840; *(uint8_t*)0x200000007840 = 0x40; *(uint8_t*)0x200000007841 = 0x19; *(uint32_t*)0x200000007842 = 2; memcpy((void*)0x200000007846, "\x01\xd3", 2); *(uint64_t*)0x2000000079e4 = 0x200000007880; *(uint8_t*)0x200000007880 = 0x40; *(uint8_t*)0x200000007881 = 0x1a; *(uint32_t*)0x200000007882 = 2; *(uint16_t*)0x200000007886 = 5; *(uint64_t*)0x2000000079ec = 0x2000000078c0; *(uint8_t*)0x2000000078c0 = 0x40; *(uint8_t*)0x2000000078c1 = 0x1c; *(uint32_t*)0x2000000078c2 = 1; *(uint8_t*)0x2000000078c6 = -1; *(uint64_t*)0x2000000079f4 = 0x200000007900; *(uint8_t*)0x200000007900 = 0x40; *(uint8_t*)0x200000007901 = 0x1e; *(uint32_t*)0x200000007902 = 1; *(uint8_t*)0x200000007906 = 0xf7; *(uint64_t*)0x2000000079fc = 0x200000007940; *(uint8_t*)0x200000007940 = 0x40; *(uint8_t*)0x200000007941 = 0x21; *(uint32_t*)0x200000007942 = 1; *(uint8_t*)0x200000007946 = 0xb; syz_usb_control_io(/*fd=*/r[39], /*descs=*/0x200000007480, /*resps=*/0x200000007980); break; case 58: syz_usb_disconnect(/*fd=*/r[38]); break; case 59: *(uint8_t*)0x200000007a40 = 0x12; *(uint8_t*)0x200000007a41 = 1; *(uint16_t*)0x200000007a42 = 0x110; *(uint8_t*)0x200000007a44 = 0; *(uint8_t*)0x200000007a45 = 0; *(uint8_t*)0x200000007a46 = 0; *(uint8_t*)0x200000007a47 = -1; *(uint16_t*)0x200000007a48 = 0x46d; *(uint16_t*)0x200000007a4a = 0xc08d; *(uint16_t*)0x200000007a4c = 0x40; *(uint8_t*)0x200000007a4e = 1; *(uint8_t*)0x200000007a4f = 2; *(uint8_t*)0x200000007a50 = 3; *(uint8_t*)0x200000007a51 = 1; *(uint8_t*)0x200000007a52 = 9; *(uint8_t*)0x200000007a53 = 2; *(uint16_t*)0x200000007a54 = 0x2d; *(uint8_t*)0x200000007a56 = 1; *(uint8_t*)0x200000007a57 = 1; *(uint8_t*)0x200000007a58 = 4; *(uint8_t*)0x200000007a59 = 0x50; *(uint8_t*)0x200000007a5a = 0x10; *(uint8_t*)0x200000007a5b = 9; *(uint8_t*)0x200000007a5c = 4; *(uint8_t*)0x200000007a5d = 0; *(uint8_t*)0x200000007a5e = 0xf9; *(uint8_t*)0x200000007a5f = 2; *(uint8_t*)0x200000007a60 = 3; *(uint8_t*)0x200000007a61 = 1; *(uint8_t*)0x200000007a62 = 2; *(uint8_t*)0x200000007a63 = 5; *(uint8_t*)0x200000007a64 = 9; *(uint8_t*)0x200000007a65 = 0x21; *(uint16_t*)0x200000007a66 = 0x81; *(uint8_t*)0x200000007a68 = 8; *(uint8_t*)0x200000007a69 = 1; *(uint8_t*)0x200000007a6a = 0x22; *(uint16_t*)0x200000007a6b = 0x6e7; *(uint8_t*)0x200000007a6d = 9; *(uint8_t*)0x200000007a6e = 5; *(uint8_t*)0x200000007a6f = 0x81; *(uint8_t*)0x200000007a70 = 3; *(uint16_t*)0x200000007a71 = 0x10; *(uint8_t*)0x200000007a73 = 8; *(uint8_t*)0x200000007a74 = 0xc; *(uint8_t*)0x200000007a75 = 0x6e; *(uint8_t*)0x200000007a76 = 9; *(uint8_t*)0x200000007a77 = 5; *(uint8_t*)0x200000007a78 = 2; *(uint8_t*)0x200000007a79 = 3; *(uint16_t*)0x200000007a7a = 0x200; *(uint8_t*)0x200000007a7c = 8; *(uint8_t*)0x200000007a7d = 1; *(uint8_t*)0x200000007a7e = 0x50; *(uint32_t*)0x200000007f40 = 0xa; *(uint64_t*)0x200000007f44 = 0x200000007a80; *(uint8_t*)0x200000007a80 = 0xa; *(uint8_t*)0x200000007a81 = 6; *(uint16_t*)0x200000007a82 = 0x310; *(uint8_t*)0x200000007a84 = 0x48; *(uint8_t*)0x200000007a85 = 0xa5; *(uint8_t*)0x200000007a86 = 0xca; *(uint8_t*)0x200000007a87 = 8; *(uint8_t*)0x200000007a88 = 0x10; *(uint8_t*)0x200000007a89 = 0; *(uint32_t*)0x200000007f4c = 0x30; *(uint64_t*)0x200000007f50 = 0x200000007ac0; *(uint8_t*)0x200000007ac0 = 5; *(uint8_t*)0x200000007ac1 = 0xf; *(uint16_t*)0x200000007ac2 = 0x30; *(uint8_t*)0x200000007ac4 = 4; *(uint8_t*)0x200000007ac5 = 0xa; *(uint8_t*)0x200000007ac6 = 0x10; *(uint8_t*)0x200000007ac7 = 3; *(uint8_t*)0x200000007ac8 = 0; *(uint16_t*)0x200000007ac9 = 5; *(uint8_t*)0x200000007acb = 0; *(uint8_t*)0x200000007acc = 1; *(uint16_t*)0x200000007acd = 0x8a; *(uint8_t*)0x200000007acf = 0x10; *(uint8_t*)0x200000007ad0 = 0x10; *(uint8_t*)0x200000007ad1 = 0xa; *(uint8_t*)0x200000007ad2 = 0xa; STORE_BY_BITMASK(uint32_t, , 0x200000007ad3, 1, 0, 5); STORE_BY_BITMASK(uint32_t, , 0x200000007ad3, 0, 5, 27); *(uint16_t*)0x200000007ad7 = 0xf00f; *(uint16_t*)0x200000007ad9 = 7; *(uint32_t*)0x200000007adb = 0x3f00; *(uint8_t*)0x200000007adf = 0xa; *(uint8_t*)0x200000007ae0 = 0x10; *(uint8_t*)0x200000007ae1 = 3; *(uint8_t*)0x200000007ae2 = 0; *(uint16_t*)0x200000007ae3 = 4; *(uint8_t*)0x200000007ae5 = 4; *(uint8_t*)0x200000007ae6 = 8; *(uint16_t*)0x200000007ae7 = 0xfff8; *(uint8_t*)0x200000007ae9 = 7; *(uint8_t*)0x200000007aea = 0x10; *(uint8_t*)0x200000007aeb = 2; STORE_BY_BITMASK(uint32_t, , 0x200000007aec, 4, 0, 8); STORE_BY_BITMASK(uint32_t, , 0x200000007aed, 0, 0, 4); STORE_BY_BITMASK(uint32_t, , 0x200000007aed, 5, 4, 4); STORE_BY_BITMASK(uint32_t, , 0x200000007aee, 0x8001, 0, 16); *(uint32_t*)0x200000007f58 = 0xa; *(uint32_t*)0x200000007f5c = 4; *(uint64_t*)0x200000007f60 = 0x200000007b00; *(uint8_t*)0x200000007b00 = 4; *(uint8_t*)0x200000007b01 = 3; *(uint16_t*)0x200000007b02 = 0x437; *(uint32_t*)0x200000007f68 = 0xf2; *(uint64_t*)0x200000007f6c = 0x200000007b40; *(uint8_t*)0x200000007b40 = 0xf2; *(uint8_t*)0x200000007b41 = 3; memcpy((void*)0x200000007b42, "\xf0\x01\x99\x69\xb3\x8f\x6a\xfa\xbd\x6c\x10\x59\x67\xf2\xb7\x9c\x11\x6b\xf5\x2e\x6a\xf5\x49\x27\x19\x39\xcb\xea\xcd\xab\x5c\x85\x03\xce\xe7\xd1\xa6\x7a\x62\xea\x49\x1b\x6b\x2f\x86\x47\x13\x3f\x15\xb8\xe9\x70\x7e\x4a\x77\x57\x7e\x8a\xfd\x8a\x12\x84\x45\x9b\x66\xc7\xbe\x93\xc4\x3e\x84\xef\xcf\xc2\xf7\x3e\x93\xd2\x95\x99\x8c\xc2\xf4\x95\xae\x5b\x1a\x3d\x5e\x12\xef\x6e\x64\x66\x4a\x3b\x5c\x79\x52\x8b\x01\x19\xf7\x8b\x0a\x61\xd8\x07\x23\x25\x37\xeb\x3d\x9c\x09\xad\xd9\x38\x23\xe6\xf8\x78\xbb\xba\x00\x89\x8b\xe1\x01\x7f\xaf\x4e\x5f\x14\xd3\x87\x40\x1c\x45\x64\x59\x54\xc0\x4f\x8c\x83\xf9\xe5\xf0\xae\x99\x13\xd9\xcc\xb8\x8e\x75\x16\xd8\x0f\x8e\x21\xc3\xb6\x10\x42\x92\x58\x16\x92\x48\xa0\x16\xde\x14\x4a\xbc\xe7\x90\x5f\x4d\xd3\xbf\x26\x98\xe9\xf3\xa5\xfe\xbc\x7c\x10\xef\x4e\xd2\x98\xe5\xf8\xfa\xcb\xb3\xc9\x34\x4b\xb3\xab\x33\x56\x8a\x0f\x64\xf4\x28\xd6\x0d\xab\xe2\xbf\xe7\x95\xdf\x06\x03\xcd\xf7\x6f\x60\x62\x41\xfd\xd8\x9c\x8f\xf9\xfe\x55\xee\x23\x95\xfd", 240); *(uint32_t*)0x200000007f74 = 4; *(uint64_t*)0x200000007f78 = 0x200000007c40; *(uint8_t*)0x200000007c40 = 4; *(uint8_t*)0x200000007c41 = 3; *(uint16_t*)0x200000007c42 = 0x2c0a; *(uint32_t*)0x200000007f80 = 0x89; *(uint64_t*)0x200000007f84 = 0x200000007c80; *(uint8_t*)0x200000007c80 = 0x89; *(uint8_t*)0x200000007c81 = 3; memcpy((void*)0x200000007c82, "\x05\xb7\x61\x5d\x7a\x2b\xa8\x3f\x59\x16\xd5\x85\xe5\x29\x06\x69\xa0\xc2\x43\xe1\xc6\x5f\x43\xd6\xc7\x68\x07\x67\xf0\xda\x68\x05\xce\x35\x66\x41\x3a\x20\xf4\xb8\x66\x4b\x77\x79\x9c\x5c\x60\x61\xd9\xd1\x90\x75\xd2\xf8\x9b\x88\x0c\xaa\x62\x2d\x3a\xa9\x10\x8e\x52\x22\xe5\x53\x36\xbf\x78\x50\xd2\xf7\x99\x0a\x13\x14\xb0\xbe\x81\xd6\x06\xf8\xa9\x9a\x67\x05\xe0\xac\x44\x87\x20\x72\x36\x6a\xba\xea\x5f\x97\xd7\xca\x08\xed\x1e\xb2\x5b\x70\x7c\x92\x99\x1e\x55\x37\xf9\x45\xaa\x40\x1d\x76\x13\x49\xb6\x28\xd6\xc9\x28\xc1\xcf\xe5\xb0\x9f\xd1\x32\x72", 135); *(uint32_t*)0x200000007f8c = 0xb8; *(uint64_t*)0x200000007f90 = 0x200000007d40; *(uint8_t*)0x200000007d40 = 0xb8; *(uint8_t*)0x200000007d41 = 3; memcpy((void*)0x200000007d42, "\xf0\x4a\x78\x64\x8b\xb1\x3a\xd6\xc5\x3b\x44\xe4\x2e\xd2\xf2\x4d\x32\x05\xbf\x51\x61\x67\x4f\xf3\x75\xec\xfa\x9f\x71\x0d\xd4\xd5\x2e\x29\x77\x9b\xc4\xc1\xd4\x1f\xaf\x1b\x2e\x02\xfa\x2c\xb4\xca\x6c\x44\x96\x81\xb5\xc8\x8b\x37\x75\xf8\x2b\xab\xde\x22\x58\xf8\xa0\x01\xd8\x11\xf8\xb6\x4c\xe0\x75\x3b\x22\x8c\x16\x18\x09\x77\x0f\x39\x16\x0b\xa4\xea\x92\x49\x0a\x38\xf8\x2c\x3f\x18\xb4\x4c\x81\xa1\x48\xc4\x8b\xbc\x4f\x71\x6e\x64\xa8\x5a\x98\x5f\x35\x70\xd6\x13\x2a\x4a\xc6\xe9\x7f\x0a\xe7\x29\x65\x82\x87\x9c\x5d\x4e\x27\x7b\xe3\xd5\x86\x7d\xc3\xdf\x26\x06\x87\x9b\xd5\x28\x12\x25\xa3\x4f\x3f\xeb\xa4\x36\xee\xc1\x6d\xdf\xbe\x61\x15\x74\xbe\x64\x5a\x71\xc5\xe8\xbe\x49\x4e\x27\x91\x83\x33\xf2\x43\x1a\xef\xf2\xe9\xfe\xd0\x60\x84\x28", 182); *(uint32_t*)0x200000007f98 = 4; *(uint64_t*)0x200000007f9c = 0x200000007e00; *(uint8_t*)0x200000007e00 = 4; *(uint8_t*)0x200000007e01 = 3; *(uint16_t*)0x200000007e02 = 0x40f; *(uint32_t*)0x200000007fa4 = 4; *(uint64_t*)0x200000007fa8 = 0x200000007e40; *(uint8_t*)0x200000007e40 = 4; *(uint8_t*)0x200000007e41 = 3; *(uint16_t*)0x200000007e42 = 0x860; *(uint32_t*)0x200000007fb0 = 4; *(uint64_t*)0x200000007fb4 = 0x200000007e80; *(uint8_t*)0x200000007e80 = 4; *(uint8_t*)0x200000007e81 = 3; *(uint16_t*)0x200000007e82 = 0xf4ef; *(uint32_t*)0x200000007fbc = 4; *(uint64_t*)0x200000007fc0 = 0x200000007ec0; *(uint8_t*)0x200000007ec0 = 4; *(uint8_t*)0x200000007ec1 = 3; *(uint16_t*)0x200000007ec2 = 0x3001; *(uint32_t*)0x200000007fc8 = 4; *(uint64_t*)0x200000007fcc = 0x200000007f00; *(uint8_t*)0x200000007f00 = 4; *(uint8_t*)0x200000007f01 = 3; *(uint16_t*)0x200000007f02 = 0x2009; res = -1; res = syz_usb_connect(/*speed=*/0, /*dev_len=*/0x3f, /*dev=*/0x200000007a40, /*conn_descs=*/0x200000007f40); if (res != -1) r[40] = res; break; case 60: syz_usb_ep_read(/*fd=*/r[40], /*ep=*/0, /*len=*/0x1000, /*data=*/0x200000008000); break; case 61: memcpy((void*)0x200000009000, "\x57\xbb\xa2\xf0\x4f\x39\x45\xda\x7a\x47\x03\x77\x10\xf6\xd5\x3d\x8d\xfa\xd8\xa9\x6c\x57\xe1\x1c\xf5\xfc\xfe\xe4\x34\xfc\xe8\x80\x38\xe1\x90\x4e\xcc\x27\x12\x33\x41\x18\xe5\x00\x2b\x0c\x10\x7c\x28\x6e\xb9\x03\x14\x23\x3f\xd5\xce\x1d\x9e\xa5\xda\x00\x76\x74\x11\x02\xd8\x85\x17\x46\x3f\xf1\x18\xbd\x93\x12\x82\x41\x2d\xe1\xf5\xea\x71\xeb\x2b\xec\x91\xb8\x2b\x7f\x7b\x64\xf8\xaa\xe1\xd5\x8e\x32\xde\x1d\xee\xb1\xc8\x26\x4d\x59\xd6\x39\xa1\x94\x5f\x00\x90\x27\x5e\x6b\xdb\xf1\x8e\x86\x68\x5c\xcb\x60\xa5\xfe\xc9\xc7\xce\xba\xc5\xd0\x5b\x5c\x84\xe6\x11\x6f\x89\xd4\x43\xfa\xd3\xce\x74\xd8\x20\x80", 148); syz_usb_ep_write(/*fd=*/r[37], /*ep=*/6, /*len=*/0x94, /*data=*/0x200000009000); break; case 62: syz_usbip_server_init(/*speed=USB_SPEED_SUPER*/5); break; } } int main(void) { syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000ul, /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/7ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x200001000000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); const char* reason; (void)reason; if ((reason = setup_fault())) printf("the reproducer may not work as expected: fault injection setup failed: %s\n", reason); use_temporary_dir(); do_sandbox_none(); return 0; } : In function 'execute_call': :6411:17: error: '__NR_socketcall' undeclared (first use in this function) :6411:17: note: each undeclared identifier is reported only once for each function it appears in At top level: cc1: note: unrecognized command-line option '-Wno-unused-command-line-argument' may have been intended to silence earlier diagnostics compiler invocation: x86_64-linux-gnu-gcc [-o /tmp/syz-executor935892554 -DGOOS_linux=1 -DGOARCH_amd64=1 -DHOSTGOOS_linux=1 -x c - -m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -static-pie] --- FAIL: TestGenerate/linux/amd64/24 (1.20s) csource_test.go:157: opts: {Threaded:true Repeat:true RepeatTimes:0 Procs:0 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}} program: r0 = openat$ubi_ctrl(0xffffffffffffff9c, &(0x7f0000000000), 0x44502, 0x0) (fail_nth: 1) ioctl$USBDEVFS_BULK(r0, 0xc0185502, &(0x7f0000000140)={{{0xa, 0x1}}, 0xc5, 0x1, &(0x7f0000000040)="e1ee87a8f76c257b75c1073c7058be82fe3362bbcca54df520d1ca8fa91b50810f876d1fab0a1cc214c35f4e266e71643d8c95988087e46a87c1a715effe06169ab65fa18e5414404f30c0005561397ed1d9557c66a994b954efa714985a2ae409df8111fa8a361408734d15b30cd9ab3fa50e088b3d2bafdc689ea3cb7e52a9fc7f5d48d245d4097bb933725bd9e29371cd7780b4ec8d6e2dbf861aad04d6594f5ebd2ffab1e8a68c5157cae2f46f6fa3aeac0e3f8b7b97630f346bc3276e53ca72b417f8"}) (async) ioctl$F2FS_IOC_SET_COMPRESS_OPTION(r0, 0x4002f516, &(0x7f0000000180)={0x4, 0x9}) (rerun: 4) setsockopt$inet6_tcp_TCP_REPAIR(r0, 0x6, 0x13, &(0x7f00000001c0)=0xffffffffffffffff, 0x4) setsockopt$inet6_group_source_req(r0, 0x29, 0x2b, &(0x7f0000000200)={0x4, {{0xa, 0x4e20, 0x4, @private0={0xfc, 0x0, '\x00', 0x1}}}, {{0xa, 0x4e21, 0x1, @local, 0x9}}}, 0x108) ioctl$USBDEVFS_GETDRIVER(r0, 0x41045508, &(0x7f0000000340)={0x4b, "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"}) setsockopt$XDP_UMEM_REG(r0, 0x11b, 0x4, &(0x7f0000000580)={&(0x7f0000000480)=""/222, 0x8000, 0x1800, 0x1, 0x3}, 0x20) ioctl$BLKSECDISCARD(r0, 0x127d, &(0x7f00000005c0)=0x4) ioctl$DRM_IOCTL_SYNCOBJ_FD_TO_HANDLE_FD(r0, 0xc01864c2, &(0x7f0000000600)={0x0, 0x0, r0}) ioctl$DRM_IOCTL_MODE_REVOKE_LEASE(0xffffffffffffffff, 0xc00464c9, &(0x7f00000006c0)) syz_80211_inject_frame(&(0x7f0000000000)=@broadcast, &(0x7f0000000040)=@data_frame={@a_msdu=@type01={{0x0, 0x2, 0xb, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1}, {0x2}, @device_b, @from_mac, @initial, {0x9, 0x5bb}, "", @value={0x1, 0x1, 0x1, 0x1, 0x9}, @value=@ver_80211n={0x0, 0x2, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x1}}, @random="055ba71928a79f8625942b8e22a62e7d0ef5d26afb5923f0a1"}, 0x37) syz_80211_join_ibss(&(0x7f0000000080)='wlan0\x00', &(0x7f00000000c0)=@random="f20f01439229172ec7637d66e2f075", 0xf, 0x2) syz_btf_id_by_name$bpf_lsm(&(0x7f0000000100)='bpf_lsm_inode_getsecurity\x00') r1 = syz_clone(0x1000, &(0x7f0000000140)="ff427f0e4659ab5893d3badb31b3b1b89da52b0f3d3489a18a5837ba6e04f21cf0581de7946c2e29adef18036a10ce361250a5667064b4d456c64c307d63cfe3422c3fafd450315e8366", 0x4a, &(0x7f00000001c0), &(0x7f0000000200), &(0x7f0000000240)="b201d139a4344e463d89913bee9c68af3f34090b9f6244af88c8fe07ce4ffe9b81210da0fc44559d985ad5bb1dc9672ce4d1df554aafb78053f4") r2 = syz_clone3(&(0x7f0000000440)={0x100400, &(0x7f0000000280)=0xffffffffffffffff, &(0x7f00000002c0)=0x0, &(0x7f0000000300)=0x0, {0x2a}, &(0x7f0000000340)=""/21, 0x15, &(0x7f0000000380)=""/120, &(0x7f0000000400)=[r1], 0x1}, 0x58) syz_create_resource$binfmt(&(0x7f00000004c0)='./file0\x00') syz_emit_ethernet(0xd1, &(0x7f0000000500)={@random="44f71c1405a2", @multicast, @val={@void, {0x8100, 0x1, 0x0, 0x2}}, {@mpls_mc={0x8848, {[{0xf, 0x0, 0x1}, {0xc, 0x0, 0x1}, {0x2, 0x0, 0x1}, {0x1c}], @llc={@snap={0x0, 0x0, "67a3", "c85dcd", 0x88ca, "e303e8e52af9a170943b5f0b2861a3effb852560b1007d1865564aed84dfbf75279a5a950a513b7559f042b12f0d592b5a8bb399b9a071f4d2b9fb4903fb61b866bd20c43a437cc6915d6e19f058e23b4cfbf7d66b0d974aa6f1687cc06941e28e8515a079742b9f8383f09b8e29493cdfef26beab29802d1e85d1a50ef5670a049551dab256fd3dc3fd667fd4a29c752e4f3ba700720a9fe2ecb47e232cfbb80832213bbaf3"}}}}}}, &(0x7f0000000600)={0x1, 0x4, [0x58f, 0x8001, 0x2bc, 0xf]}) syz_emit_vhci(&(0x7f0000000640)=@HCI_ACLDATA_PKT={0x2, {0xc9, 0x1, 0x0, 0xa2}, @l2cap_cid_signaling={{0x9e}, [@l2cap_info_req={{0xa, 0x4, 0x2}, {0x5}}, @l2cap_move_chan_rsp={{0xf, 0x7, 0x4}, {0x1, 0x1ff}}, @l2cap_info_rsp={{0xb, 0x8, 0x64}, {0x1, 0x9, "7d0c09e4aa3ea5a78a46cf8d66857ba4107e5cf880621c4c433cdb0a8bd03a4f9c8f390145f9db0c1dd85656d6b3dc38afb84d7e118e1cbdd6926b1876be6a6553bafa1bfef971281350403e18e82e89f42bb6d51b166bd96dabf25dbb28f01e"}}, @l2cap_disconn_req={{0x6, 0x64, 0x4}, {0x9, 0x1}}, @l2cap_move_chan_cfm={{0x10, 0x2, 0x4}, {0xffff, 0x9}}, @l2cap_create_chan_rsp={{0xd, 0x4f, 0x8}, {0x6, 0x8001, 0x8, 0x3}}, @l2cap_conn_rsp={{0x3, 0x48, 0x8}, {0x4, 0x8, 0x6837, 0x4}}]}}, 0xa7) syz_extract_tcp_res(&(0x7f0000000700), 0x0, 0x507) r6 = openat$cuse(0xffffffffffffff9c, &(0x7f0000000740), 0x2, 0x0) ioctl$DRM_IOCTL_GET_CLIENT(0xffffffffffffffff, 0xc0286405, &(0x7f0000002a80)={0x7, 0x4, {r5}, {0x0}, 0x100000000, 0x3}) shmctl$auto_IPC_STAT(0x8, 0x2, &(0x7f0000002b80)={{0x1, 0x0, 0xee00, 0x5, 0x9, 0x8c, 0x6}, 0xe0000, 0x3, 0x6, 0x2c54, @raw=0x7fffffff, @raw=0x5, 0x3, 0x0, &(0x7f0000002ac0)="34d14592330d2effe2b242ce1c79f97a737dc0f7745d84eec469048ba4772d3ca2f34e3a83b5edadf6550e5b412cf5ee749b3324b30032ad2ae14cfa29ef4ecf97416fdc53d73bb80ea139aac1bf364ddcbe7409342155ae126f63d9e3ab1d5104befdd9", &(0x7f0000002b40)="e550413c2f469c9ef08eb7193b0a242e58befe012aa89d7c"}) r9 = setfsuid$auto(0xee01) r10 = getuid() fstat(r3, &(0x7f0000002ec0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) ioctl$DRM_IOCTL_GET_CLIENT(0xffffffffffffffff, 0xc0286405, &(0x7f0000002f40)={0x9, 0x6, {0xffffffffffffffff}, {0xee01}, 0x9, 0x8}) ioctl$auto_XFS_IOC_SWAPEXT(0xffffffffffffffff, 0xc0c0586d, &(0x7f0000002f80)={0x1, @inferred=r3, @inferred=r3, 0x0, 0x0, '\x00', {0x100, 0x6, 0x4, 0x0, 0xee01, 0x4, 0x2, 0xe78bc90, {0x9e350, 0x10}, {0x4, 0x7}, {0x3a83, 0x80000000}, 0xff, 0x8, 0x7, 0x7, 0x5, 0xd275, 0x6, 0x1, 0xff74, 0x5, '\x00', 0xf0e, 0x400, 0x2, 0x8001}}) msgctl$auto_IPC_RMID(0x2, 0x0, &(0x7f00000030c0)={{0x80, 0x0, 0xee01, 0x8, 0x3, 0x3, 0x6}, &(0x7f0000003040)=0xf, &(0x7f0000003080)=0x29, 0xfffffffffffff801, 0x6b4c, 0x0, 0x3, 0x800, 0x2, 0xbf09, 0x3, @inferred=r2, @inferred=r4}) ioctl$auto_KVM_GET_DEVICE_ATTR(0xffffffffffffffff, 0x4018aee2, &(0x7f0000003140)={0xb407, 0xee01, 0x8, 0x8}) statx$auto(0xffffffffffffff9c, &(0x7f0000003180)='./file0\x00', 0x4, 0x2, &(0x7f00000031c0)={0x8, 0xfffffffe, 0x0, 0xa, 0x0, 0xee00, 0xf, 0x5d3e, 0x5, 0x10, 0xff89, 0x100, {0xf, 0x8}, {0xfff, 0x2}, {0x3, 0x7fff}, {0xffffffffffffffff, 0x9}, 0x0, 0x3, 0x7, 0x8d6, 0x383d, 0x4, 0xb0d4, 0x503, 0x2, 0x0, 0x5, 0x2, [0xfffffffffffffffb, 0xff, 0x3, 0x259, 0xbe9, 0xff, 0x6, 0x800, 0x9]}) shmctl$auto_IPC_SET(0x3, 0x1, &(0x7f0000004300)={{0x5, 0xee00, 0xee00, 0x3, 0x7ff, 0x2, 0x5}, 0x2, 0x401, 0x3, 0xfffffffffffffffe, @inferred=r1, @inferred=r4, 0xfffe, 0x0, &(0x7f00000032c0)="2375c97389c89e9238f17ad922cf4ef603af0242d2c7e9c23df37d324f202ec0c69f30410994d35fa4fab856df9947bb0e8f8b1b9835591fef60711eab136c3b36cc9f35d503fdabdd6f15d5fe195b4d2f7620a65f50e2aa5defda8a666e0dc85d5d996457f1e022f973d57e301c6ec4d106fb332b9907e5391e82c6a6ac3dc834f2a4514de01e226ad3e536e48bf7de4e6de0e4ba56ec34aede67578561e5c210e01714fb7bf3cb3df6743ae95d1085d74a0e7581fa6e239c9975782c2471620944491b910b3ed0ddd0fd97055bd3519c6133fb27f5438dbf9695062e19b7f67074edf93614ccb26ac7b097511dab8b48a5be1e2c07c4e52411b3c74be9747463d4f373e170218fa174f2a8bed9b5d54f2fabeea80f41fe0d72064ec1ec2a3e47bdfaeb9b181aeea3fea97c8efbc14e90677044bed5df16f03042d64517f0fe9ab2d15289641a93c1736d1d036b881baebfa2901bee0350c6674194b2c1f41e3eb2a74b57bb411cb14c2be6d13bf79887cab1bc70907a157d8647153f8809228b952ad49277b27592f8d95edcbc0c9f6382194e45ef6f4277fdb24e6d3989d647e1f8f1bf8530cc8b558cf3f1b48ff5f6737f3b0e806c504a48e066c6d417d037612d7047635dbd4b9a2408543d0bfc66de1f616e201daba3a749d5d231e4122a8861265e0c46e5c57c2b680db37449b6213f01936d592578809abbf25399cc4174c3cfb11bf9f47889f07618b16afd0ca25d4343b5102fb0350d4c75c78ce54e1601b4c695b34b0cb67f71ca17631f8f66b5bda619a97bdbaedaa5c6a5546b2e405bc960923d8383ed4b5aabd2cc286c9a8b6a00d8ddcf9e74b44f4d3e35ab9178322b59ba803c414041646300b8f7cd40f57a13417e7e0f2f7f7b07fffcbe38b70cba5044f01f0f35dd27af864417b217b0c20aec97a1d50416857248f8436c03b8ee52429a4cb18cd2b068c986b84c68875841a22f8ebc65e0f361fe7dec5390d8d62ceea265c41fc711833498e8d6329559094e4897dcce60cbb5920640ef0b306d418c42887f89de2e60ca1032800a6d1c7d4b41f4c32cd4b1caf2768529cd353b7d8638971bedba831802d971164fe944ca203f958eed011d9a8a13744155bdef4e8186edffaecc12a849182946811128aa092272e2a1bdae8a810ed3937d60ecd172cb13428c452cc271309c10ed5f88d12578619436b59643204730fd600d6cdb22687f44901d7329021385da3c67db3b9ab88eae488f03508d3f00b5c82b91922e2f217db8ac0e76c94d8c25a9fccb90305ae050520c223e9f84deca84693a272480581443211af0fa64a6020e94d4dd569261b4f32184725ce7c46bf4b4de1382bee1dbe74cb12e599704b7044c4867a70420ec0b3507998d57247e000728d0bcc3db8fb62d3c87c13169c3085a755db1cfba8532d74b67eaa1581478fc2da1ae18cd4a501fc56559e76cf9a80844bbe9d782dffb54805730d311d243c030a727de8a30b3f5565ba6877a5261b62b0f6c2d2a9449849f448c5c43b2a8a77035f0eee8ef0d0aca61ffcac4f5d37ff3592b984493dc47387f5b3e7211d3bd10a4ca1af0eb85acce47ad1d54d25aa35022eb5118b451dc933ab5e7619bdbf12d70eee6c5442db9591ab3adcf666b85d1aa3ba90bd0585d72b3cb347ccd81725c5dceb3dece9bacb8f50bc7f17855ee6a1304f41ecdc9926e5826a5f51f353aed8e5e92d4a1f65785852a54b505616ec7209101cd105a6254b02a18cfbcc3bf9d8d57c61355c932e48ddea40a3c2fc31214675e99dfa63c9f857f059d6d7bf7acb8f7fd804758e33f15eea3edc09cd03ecfd13cd4332a4381c4e3463bfdd17f35335e4f9ba2a70dd7b5f019aa44689dca7ff0bfba59907eabe861e7768683cff8b852f4acb37277e56a55bedc4e1fc425bb77e5b215c3bed4bcd885f4922a0ffc7a92c2b3314e60603b58cc54c2fb188730e360a8ddeda246585b225faa9049f2d2a8d851c7816485dc53de2ee3ad049b369361c86701dc44db2987414cc7575744764eec97158520e4e368446a2c0a4482d53047148332f0d83d3bc55186c2c98c7b8338aeea3cbc716cab7f318611758847ec401d31f9a713c42a097e30f201f64fb37f86bc68d81dfeb73d79b88e50cde838176662ec718412bc6f8ea569ea3694c072dc01c12c9aea2607ac0150d5024b58b27368dd559bfcb30ee2747be4c18db317bb7fdb72db5be7fd404a1ae7dc377e3ba7d8aea7640d1497aa4c906e8643cc4f7186cd066d1acbaa7fe0f92ca9870c79de8abedfcf0badd3554b4d66d3d3442f023588242da4457e9d9b6ecbe55115a2af85ceb7900e6a9f98822cbfaf0f6e905bd343fdede0d675c161bc595effd26d9a4b20a811399790d68a1d398c257c50d671cb3d43a6ee7c14cbbab082dcbae1c9df4e047b22567918273dae0f9cc51bcdc0527a9ef6910d1ff5d7e4b4dd94388a8b7e777158cd475a22b382636e0c306ed78b145bc093917403029d3c9f5a83d8e42f1ba3517b85bfec15eb1f81c606b2121ae17c4b0334c57c0f7def2ab28e3c6f7019523fdf453de7eede33941ffaa8cbed627fefb2b86f513c9b75c35bc3711dd38c9cf32ba3c000e7a83fa34ad405d9bc3c85091751c66e5ea5d6e4dcacf5ad26528572b83926778cb124a70853d2c1c9d3ce73f96e6f25891c380fa7775946b74c0773df42501cd0a22935edb749bc5d84a8a9b8ae08354cabb06ec9c720d97e2c5fd4565cf8905975ab52ac86df12318afed015e5b09bb0d8b071d8911394468816c89b81a724c73442458fec2f293f895d4876187430ae6e916f45a2086f07aad6c0553b9e69e7a98d8d2e5cb9ee105aca5087b1f45fbeea15c43773324a1b663ee301df58cb5b46138b8cf2995d0413ff0b95e5b2c93097c14fc9da8ae502f21fb71155ba87469cf973636179782be186febf11cb4e5c77251fd43c2ba2730127aaf830e9625232ea2942e280daf6f08a5431a45c4e50b59077bab136f14b404e4179a5f6305994399657b9adb6d9c03cac7a643a764c8efc7c5a7cbbaf1765d08281dbe2ea094baaeb2663f635b893a8ef71208c6b04add9a8709490f863c291bd4063fa98a3d3ee7cbe3a4deedfeb462b7ed63cf1bc03fcb7cc8b109df20096aba36b30fd0283acf5a1dac69bb8732c5b47381c16efad8657e73f72fee1d097c7e80f9ba0ef5e7d00ffa1764b6df48bac35169c5ac246a960fac9a8da97229361e15e3c12994a0f92150de5fe885f0d2c6016ab137cdd23ce6d56d1e76180355585ad0df0773f34876a969bdc60a1e9b0c5304b926cfb798dabededf7ef9d3a54451a347fd0c0e532504214b6b6cec1ba3c6d34ecff8fd245ac1ac6aff59a4206d9f090713a6f36567d6dc351d3c78c52763e2206ad48bfec2593281dd02c001cf2b74c29557f221c770348a9119655823bf12d1f857f0e06af9880cac15587d393312074134350247c766e4c34e9cca90e07d1583d79b8cb28b3e87440655eff64a54dc8a3e0ab050a9f4dda71c0738f1a1290ba1a3b93536cfb217de8c0e70c9e9855edb819e2730f31fccf8389795075f045e84ca0cd47c7207af478cdc8e1082da7f6cf6e9856e6d9dcd96595f2a94792f9ecea49bce82328a12b869e28a8ae073a7247be22b3ba9d7f1070bfc8ac6ef9ddbc5e09af792a7206a38736613eec639a323bf988a8ea65dcfe51baeec1053979f269e6851ca6828d2f1df4b2c39a95388f32131b5e374578cac2f5a5d7eb8bb9c108fcbfff310852c644f27f9da831c669a2a6bc234e9e0c54ff572bbf2ebe06a9a07a9ff759a2a5bbab38414eb32454805170a851e82f7277bb4caab878ef80712aa4ba0bd5b367b98d832a454f04372bed77100f84d66ac2347d12d8649f1b9957a05d0682c64e64404143f56bfdfd9a05c426bab76330da1090af582c2b03599a91c153079f2960921446bab37089e8bb3a1c8b82150f5ae0bff847b7441f63facc2565e1f777cedafb4196147790fc6f973f5ec2eac45a9fb3f970e1ca1e2a20cd160af22d9c61e00887b1bc099acd1adc09af1aa0be739712e2965589be5c79e55a827292407420e51cd01f414c123d79789a298b80158f2a2112d945a8b56c56e188b5082dd94af84b2b85f97c31013c832996cde4b2672da245cef3c332641c3468103b95fbf139ab70d9623dd76986acf03a6d595c8a6cf37dbbe710541023b5556caedf6811fd5283a90960bbe161fa387899053a811ad5a083710be473ac6435a3acf43bee349a0590b0c8711879bcd409ca7060fb95c47ee7981c821a14cad652372ef22f9764438a4d9f179cebb53ec975ec5e495ebd54c185c8c6627306453f6a8950c03ebe5dec040dc244a6d230042fd1e88f4e8b5ba9a532aa3702ebab59e467ad1b86bf980836b8d6430241263beefc1feb5a58fda101f2e66de724d1d09594364160f4eac4fc7f8ecb113c405c4e6ba509138f6362192d375cfa619cc3cbb707b4b7d3cf1a14b8f0748f099c2535199e9913a5b92463b5da3bb0b6ad9c9c706be9c96c8fa86826ff2cecc51ecded39e7b5e0fab0aa5355a6beefa35272c79d77503c308e13f47643672b82ec9be479a25db7d53e0f63cb69b7a0612c40cb5f492d01b87ed249dbae8b30cfb2d3af01f39219f4c8c3965968ebb8711677af851b993de377a23b196ef3c265b305c5afe93ed950dd320bbecabb57f78af2312f7ae173a30c59f8b0b53e73838a1baa2cbecdd31622fc089d6463a2ac54f75393122ad243f659a640376f5ebca20e8abe783dcbdfecc30c905368055548c6654e8f3431140c6d2aeaad218a73a6e6dff074f53aa7ab2fe3607a5af1771d38d31d45a14ba9a4daf3159dce9b582486872656baad28b49a383fd8be8b99fbc9c196f9a621c561c3bf31d0b7445fd04e5a10087ecb5fc11867c59fe4866e37b00e615acdd1b01af1f6659220378accdef3dc2ca2724f0ad3bba9e39949b337f4c8bec49aa8e25a388b94cca63acaf7fa247ec776d0468671957b3fcbc098e0ee69aaf22c3e8acd2b006ec3ef98a8ab83d10b10888cbb9f5eb38f2991a818d261e52dc0e7915dfae793c6a02bb68f7023f76bb194b714267e65dd2462a2a926370fe51bf268d8a6d2c579b6de1f76b51f67b38ea7ee502b8f75295a4b3a340fda3c7dee10a20e6a3a62242c3e1d431fbeb3c497edf286d59135f14c2127cfb211702fb1b2b49794b03da6a5202c217b4c0abcac932ca7534a0d9e4d9fb946b208ee3441dd7a4630eb520e83dbffb1d5eac6e18154ff1e6662b5a59fb8db162f66e291516972b623be98f590b121c7ca851cb36b6d5d3513331f2dc18c81d34d9895fb90e47542691f8cac1d73a2e5d96c0e6758d83f6207beed66cf7c5ce866946a906790e25fefef9794a82b90de66ce285160d327ee352080a72cb392eb1b7221485c4cb81bce93d5f7f7541494b3b6db878b77bdcf6d5db2fd7d408de2cf3c834098b24c35e7705913695432547dd538027835e7309b3d2c2d656f4f35ee65a4834ccb8b65f367a8e31c1db1ed3ad48926bcc861804175f92ddf8336a83550ed2da50b90fee0ce42eb2fc0a4b1eb5c3e2ffd84c9d6949c4ea10947cc8119cee01ce67fd72300fa8a440dab5c5b553cc766720cbd66093d7ba676883148783b395515b3680c8c914c63c6292b82fd0f5657878b111ee5061e124f81283eff9ea26255b61701100749bcfb5de5a559d5beecb53e0c2adda15e656aa80c9eaf9b03080e799da125c6ef", &(0x7f00000042c0)="14dc2c36c1a4730f33f0a47756b437792e9ac78f742f821e328341e02b"}) newfstatat(0xffffffffffffff9c, &(0x7f0000004600)='./file0\x00', &(0x7f0000004640)={0x0, 0x0, 0x0, 0x0, 0x0}, 0x0) fstat(r3, &(0x7f00000046c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) shmctl$auto(0x0, 0x7, &(0x7f00000058c0)={{0xffffffff, 0xee00, 0xffffffffffffffff, 0x2, 0x9, 0x2, 0x4}, 0x6, 0x4, 0x4, 0x1, @raw, @inferred=r4, 0x40, 0x0, &(0x7f0000004840)="be999eee258959e93a2aa68dc2cb1d93b819d2b9d9e678e2e2506d54510e920728d75815bb8027e6a021febb8f0996f8add6877b74ce5eace74504cf3a4f3ac46a5a59400342351940bfb8767dd9955c9e9a9941", &(0x7f00000048c0)="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lstat$auto(&(0x7f0000005940)='./file0\x00', &(0x7f0000005980)={0x100000000, 0x7d80, 0x1, 0x40, 0xffffffffffffffff, 0x0, 0x0, 0x7, 0xfffffffffffffffb, 0x0, 0x2, 0xe6, 0x2, 0x4, 0xa03f, 0x10, 0x7}) syz_fuse_handle_req(r6, 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", 0x2000, &(0x7f0000005b80)={&(0x7f0000002780)={0x50, 0xffffffffffffffda, 0x7, {0x7, 0x2d, 0x8, 0x1020000, 0xfffc, 0x401, 0x12, 0x6, 0x0, 0x0, 0x40, 0xce}}, &(0x7f0000002800)={0x18, 0x0, 0x6, {0xbb}}, &(0x7f0000002840)={0x18, 0x0, 0x1, {0x5}}, &(0x7f0000002880)={0x18, 0xfffffffffffffff5, 0x4}, &(0x7f00000028c0)={0x18, 0xfffffffffffffffe, 0x3, {0x7}}, &(0x7f0000002900)={0x28, 0x0, 0x300000000000, {{0x1, 0x8, 0x0, r1}}}, &(0x7f0000002940)={0x60, 0x0, 0xc, {{0x0, 0xff, 0x2, 0x41, 0x40, 0x6, 0x8dd, 0x5}}}, &(0x7f00000029c0)={0x18, 0xffffffffffffffda, 0x9, {0x5}}, &(0x7f0000002a00)={0x16, 0x0, 0x6, {'\xff\xff\xff\xff\xff\xff'}}, &(0x7f0000002a40)={0x20, 0x0, 0x0, {0x0, 0x1e}}, &(0x7f0000002c00)={0x78, 0xfffffffffffffffe, 0x3, {0x8, 0x6, 0x0, {0x0, 0x8, 0x2, 0x8, 0x80, 0x5, 0x3482, 0xa246, 0x80000000, 0x4000, 0x3e08, r7, r8, 0x7f, 0x3}}}, &(0x7f0000002c80)={0x90, 0xffffffffffffffda, 0x2, {0x6, 0x0, 0x2, 0x8, 0xfffffffc, 0x9, {0x1, 0x3, 0x2, 0x5, 0x761, 0x7, 0x58d95c3d, 0x7, 0x7, 0x8000, 0x8, r9, 0xee01, 0x0, 0x400}}}, &(0x7f0000002d40)={0x158, 0x0, 0x8000000000000001, [{0x0, 0x0, 0x0, 0x5}, {0x2, 0x291, 0x3, 0x0, 'a-$'}, {0x6, 0x1, 0x1a, 0x5df9, 'bpf_lsm_inode_getsecurity\x00'}, {0x5, 0x4}, {0x3, 0x2, 0x7, 0x615d, ']F,[@%('}, {0x3, 0x4, 0x2, 0x5, '#*'}, {0x6, 0xc, 0x1, 0x200, '!'}, {0x2, 0x1, 0x3, 0xffff, '%[*'}, {0x2, 0x1, 0x6, 0x10001, '\xbb\xbb\xbb\xbb\xbb\xbb'}, {0x2, 0x9, 0x3, 0x3, '\\$&'}]}, &(0x7f0000004380)={0x280, 0x0, 0x7, [{{0x1, 0x2, 0x9b, 0xa, 0x40, 0x2b, {0x1, 0x0, 0xf5, 0x7, 0x8, 0x7, 0x5, 0x9, 0x1b, 0xa000, 0x4, r10, r12, 0x4, 0x10000}}, {0x4, 0x6, 0x0, 0x7f}}, {{0x1, 0x0, 0x9, 0x4, 0x9, 0x101, {0x0, 0x80, 0x80000001, 0x8, 0x7fffffffffffffff, 0xc14, 0x7, 0x2, 0x5, 0x1000, 0x7, r13, r16, 0x7, 0x3}}, {0x1, 0x8000000000000000, 0x0, 0x9}}, {{0x3, 0x1, 0x7, 0x3, 0x10000, 0xfff, {0x6, 0x3, 0x4, 0xffffffff, 0x5, 0x1, 0xcf, 0x5, 0x2, 0x3000, 0xf, r17, r18, 0xdda, 0x800}}, {0x0, 0x480, 0x1, 0x7, '\''}}, {{0x3, 0x0, 0x6, 0x6, 0xae90, 0x7fff, {0x5, 0x2, 0xffff, 0xb6, 0x9, 0x8, 0x200, 0x3, 0x6, 0x6000, 0xfffffff7, r19, r20, 0x4, 0x6}}, {0x0, 0x3, 0x6, 0xfffffffd, 'wlan0\x00'}}]}, &(0x7f0000004740)={0xa0, 0xfffffffffffffffe, 0x7fff, {{0x1, 0x2, 0x8, 0x8001, 0x9000, 0x0, {0x3, 0x4, 0x4283, 0x6, 0x7, 0x1, 0x4, 0x8000, 0x7f, 0x2000, 0xa, r22, r24, 0x2, 0x9}}}}, &(0x7f0000004800)={0x20, 0x0, 0xa, {0x8}}, &(0x7f0000005a40)={0x130, 0x0, 0x800, {0x10000000, 0x9, 0x0, '\x00', {0x4, 0xfffffff9, 0x8, 0xd, r25, r27, 0x4000, '\x00', 0xe, 0x1, 0x9, 0x4, {0x75, 0x10}, {0x0, 0x2a}, {0x4, 0x647}, {0x8, 0xfffffffa}, 0x4, 0x9, 0xf1, 0x7}}}}) r28 = socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$SEG6(&(0x7f0000005c40), r28) syz_init_net_socket$802154_dgram(0x24, 0x2, 0x0) r29 = syz_io_uring_complete(0x0) syz_io_uring_setup(0x19f7, &(0x7f0000005c80)={0x0, 0x9c5d, 0x2, 0x1, 0x253, 0x0, r15}, &(0x7f0000005d00)=0x0, &(0x7f0000005d40)=0x0) syz_io_uring_submit(r30, r31, &(0x7f0000005dc0)=@IORING_OP_TIMEOUT={0xb, 0x28, 0x0, 0x0, 0x3, &(0x7f0000005d80), 0x1, 0x10, 0x1}) r32 = syz_kvm_setup_syzos_vm$x86(r15, &(0x7f0000bff000/0x400000)=nil) syz_kvm_add_vcpu$x86(r32, &(0x7f0000005e80)={0x0, &(0x7f0000005e00)=[@enable_nested={0x12c, 0x18}, @uexit={0x0, 0x18, 0x4}, @nested_create_vm={0x12d, 0x18, 0x2}], 0x48}) syz_kvm_setup_cpu$ppc64(r14, r29, &(0x7f0000c37000/0x18000)=nil, &(0x7f0000006100)=[{0x0, &(0x7f0000005ec0)="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", 0x230}], 0x1, 0x1, &(0x7f0000006140)=[@featur2={0x1, 0x7}], 0x1) syz_kvm_setup_syzos_vm$x86(r29, &(0x7f0000c00000/0x400000)=nil) syz_memcpy_off$IO_URING_METADATA_FLAGS(r30, 0x114, &(0x7f0000006180), 0x0, 0x4) r33 = socketcall$auto_SYS_SOCKET(0x1, &(0x7f0000006240)=0x5) shmctl$auto_SHM_INFO(0x80000000, 0xe, &(0x7f0000006340)={{0xfffffffa, r11, r27, 0x3, 0xffff, 0xe6b, 0x7}, 0x0, 0x357b, 0x3, 0x8000000000000000, @raw=0x74, @inferred=r21, 0xc0b, 0x0, &(0x7f0000006280)="7010159f68d5ae907137fa70d286a18ba48348f88d1fa097cfe82bb9559e66c97b4ccf3acd9ce240544907f4538170e45e0c6de8adfb6ae94ed44b616a63737814f1894473d9519f2130e8a0e061c96e46a99a5316e46b6b461348bb03dddad70675bcda5921bdb5038cc7dcade7ba3e106cf315e2ad48818a62c7", &(0x7f0000006300)="1368248ad908eb425081239c0a10a514ef06f16fa38bc52b0f03b04d36f544263cb4a0a3ffbbafa80089cf8b02841df433c6b97da8fbfe285fccd05ad4"}) syz_mount_image$fuse(&(0x7f00000061c0), &(0x7f0000006200)='./file0\x00', 0x400, &(0x7f00000063c0)={{'fd', 0x3d, r33}, 0x2c, {'rootmode', 0x3d, 0x1000}, 0x2c, {'user_id', 0x3d, r23}, 0x2c, {'group_id', 0x3d, r34}, 0x2c, {[{@blksize={'blksize', 0x3d, 0x600}}, {}, {@blksize={'blksize', 0x3d, 0x1e00}}, {@max_read={'max_read', 0x3d, 0x100000001}}, {@default_permissions}, {@default_permissions}], [{@euid_lt={'euid<', r13}}, {@subj_user={'subj_user', 0x3d, ','}}, {@uid_lt={'uid<', r26}}, {@audit}, {@dont_measure}]}}, 0x0, 0x0, &(0x7f0000006540)="d3aa92") syz_open_dev$I2C(&(0x7f0000006580), 0x800, 0x40000) syz_open_procfs(r5, &(0x7f00000065c0)='cgroup\x00') syz_open_pts(r14, 0x201) syz_pidfd_open(r35, 0x0) r36 = pkey_alloc(0x0, 0x2) syz_pkey_set(r36, 0x0) syz_socket_connect_nvme_tcp() r37 = syz_usb_connect(0x3, 0x504, &(0x7f0000006600)={{0x12, 0x1, 0x310, 0xf, 0x36, 0x49, 0x8, 0x7d0, 0x4101, 0x4624, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x4f2, 0x3, 0x1, 0xa2, 0x40, 0x64, [{{0x9, 0x4, 0xc2, 0x7, 0xa, 0x50, 0xb3, 0x17, 0x7, [@hid_hid={0x9, 0x21, 0x3, 0xdf, 0x1, {0x22, 0x238}}, @uac_as={[@as_header={0x7, 0x24, 0x1, 0x2, 0x2, 0x2}, @format_type_i_continuous={0xb, 0x24, 0x2, 0x1, 0xde, 0x2, 0x0, 0x5, "", "116df7"}, @format_type_ii_discrete={0xa, 0x24, 0x2, 0x2, 0x8, 0x3, 0x7, ';'}, @format_type_i_continuous={0xa, 0x24, 0x2, 0x1, 0x4, 0x3, 0x1a, 0x9, "0f58"}, @format_type_ii_discrete={0xc, 0x24, 0x2, 0x2, 0xf270, 0x100, 0x7, "3129f9"}, @format_type_i_continuous={0xb, 0x24, 0x2, 0x1, 0x1, 0x3, 0xf9, 0xa3, "", "540613"}]}], [{{0x9, 0x5, 0x3, 0x38, 0x8, 0x1, 0xf9, 0x0, [@uac_iso={0x7, 0x25, 0x1, 0x1, 0x80, 0xffb0}, @generic={0x62, 0xe, "0bef679d6359d71a144a38a22834d12bd19c60b65829f44ebe6b1258a3a7a0cc60f30007c2c4d2a3cb88fb6beb580e628147114ffc6a4e39b19e718fc2cd0fa5af688649abe3db58d0707203283b6bdca05f49fb16b3618fcf4dd01cb2ef3509"}]}}, {{0x9, 0x5, 0x4, 0x0, 0x20, 0x1, 0x2, 0x5, [@generic={0x4e, 0xa, "aade99ccf348061ad92225e05a396a2ebe892ca65de9efa665821e34200c5caa943c9b1a3eb10828e13815e6120c4787a4d395b1e32a8ba1ffb991375879d517862de6e9cb6f723335dd156a"}]}}, {{0x9, 0x5, 0x3, 0xc, 0x3ff, 0x7, 0x0, 0x7f, [@generic={0x33, 0xe, "08b928c563b3fbc136beaf22bf46e0cf55e3f262485f30b28a3f9a3ec901ce8066c6788d469526c55bf0c2b3ca5005539a"}]}}, {{0x9, 0x5, 0xb, 0x4, 0x3ff, 0x3, 0x40, 0x7f, [@uac_iso={0x7, 0x25, 0x1, 0x87, 0x9, 0x4e}, @generic={0xcb, 0x11, "3b9dcacc679086d78f927ab634935a18813b23cceffea69b630aa97cc469907afac2a30327adeb901d9fb900ad82138098cbff5fed7fee2c7d701290ce4ad020a9da29675f8f051399879db57022b89c990120513aaa70c51847b128dd73bdea25cbb545c1ae8352024ca93cd7ea881cbb0920eedef072efe9da61b7bd77a3c085d712c142ca88c39f8edd17d6fb9a7ef8d0fad5a15a333e7ed05e7e9ae6e2a464c3159ab1a60e33afbf29a2f678c8c9e2f8f7a8d03d5582529b277b4be85583e5d81bc95749773042"}]}}, {{0x9, 0x5, 0x1, 0x3, 0x8, 0xe, 0x8, 0x7f, [@generic={0x72, 0x6, "6ee2410469b7a8b23e3255a554b63d5beb1b34b4871894e3df69e7558ce56cc83b83ae1ac9d1dec0882d040a7801a300c7eac26d78d2daff6bd47caca500d46c1b5a0b9e1ada0e7b606b6fd6b39db81c7c954c04d4ede980ea2ca80b113bdb4be747e1b6dc9281d77e85683aaac6534c"}]}}, {{0x9, 0x5, 0xb, 0xc, 0x5bf5a5d27b9960e1, 0x0, 0x1, 0x7}}, {{0x9, 0x5, 0x0, 0x0, 0x10, 0x5, 0x1, 0x77}}, {{0x9, 0x5, 0x5, 0x0, 0x208, 0x1b, 0x9, 0x7}}, {{0x9, 0x5, 0xf, 0x0, 0x40, 0x30, 0x5, 0x7, [@generic={0x50, 0x6, "011daf9ad3aea956d0184e8907d7b0b0a6aa9e921ac64d7a9e5a0ce5b5e0afb47868c9c4a76b6509835bf9ee45a7891eaad172a875634f7f36260124669b2d1b04c2fda38cc936921cb561245efa"}, @generic={0xb7, 0x21, "53542a37449c9d1a4e696a99527d5ad5bdad1c7e724128df50295aa0c61401ca6cd5cd356977f617e8b11448466269116af93b9dce05ded48792719f65bfa91da16b85ee1d6236084d8170f97c0a74f102663c645b0ee1b0fa7904e646438d8b16218604561c1abb98289e3ecba88e78f67361478774462a4d82749646452004b2482082e9c1b2f2972419f6f752e1bec5e1925fce215edb8265344da85b85164db3c633e4e431fec4c609664eac2b6b1f5f7bdc10"}]}}, {{0x9, 0x5, 0xc, 0x10, 0x10, 0x3, 0xf9, 0xff, [@generic={0xba, 0x23, "5c48a51f46fa078d84ce434e722a7fa4e7021ae9d9b76677366de6a10ab3e94e0969d7fc2a24536e1150d94672c5418b02951def7e20c7dfe0aa26adbf0bfd8f6dd351fa30990713537134af9c14fa84dee2b95af8e134542b5a1ad540329a97cbdd1a2422f13e6e03b49f7105a6bf4900ea723fbe14f21d182aeef2cf5162591f8bd38b85d45d723cef02132b5e45467dd8d430c378b8bf2d98403267010379de7bd04c800dfd5fae0c0ddac0b5cffde98ca400dce30ddd"}]}}]}}, {{0x9, 0x4, 0xfc, 0x4, 0x1, 0xff, 0x6, 0x39, 0xc, [], [{{0x9, 0x5, 0x0, 0x2, 0x400, 0x9, 0xdf, 0x2, [@uac_iso={0x7, 0x25, 0x1, 0x3, 0x8, 0x8000}]}}]}}, {{0x9, 0x4, 0x9d, 0x1, 0x3, 0x48, 0x48, 0x40, 0xa, [], [{{0x9, 0x5, 0x1, 0x10, 0x40, 0x2, 0xf1, 0xc, [@uac_iso={0x7, 0x25, 0x1, 0x81, 0x81, 0x5}]}}, {{0x9, 0x5, 0x7, 0x8, 0x40, 0x6, 0x0, 0x1, [@uac_iso={0x7, 0x25, 0x1, 0x2, 0x0, 0x10}, @generic={0x6, 0xe, "555dc78c"}]}}, {{0x9, 0x5, 0x5, 0x4, 0x200, 0x9, 0x40, 0x3}}]}}]}}]}}, &(0x7f0000006c00)={0xa, &(0x7f0000006b40)={0xa, 0x6, 0x200, 0x3b, 0x5, 0x9, 0x40, 0xa4}, 0x30, &(0x7f0000006b80)={0x5, 0xf, 0x30, 0x3, [@ptm_cap={0x3}, @ssp_cap={0x10, 0x10, 0xa, 0x1c, 0x1, 0x7ffffd3, 0xff00, 0x1fb, [0x0]}, @ssp_cap={0x18, 0x10, 0xa, 0xf, 0x3, 0x8, 0xff00, 0xd00, [0x0, 0xffc0cf, 0xff0000]}]}, 0x1, [{0x4, &(0x7f0000006bc0)=@lang_id={0x4, 0x3, 0x42f}}]}) r38 = syz_usb_connect_ath9k(0x3, 0x5a, &(0x7f0000006c40)={{0x12, 0x1, 0x200, 0xff, 0xff, 0xff, 0x40, 0xcf3, 0x9271, 0x108, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x48}}]}}, 0x0) r39 = syz_usb_connect$cdc_ecm(0x6, 0x8f, &(0x7f0000006cc0)={{0x12, 0x1, 0x310, 0x2, 0x0, 0x0, 0x8, 0x525, 0xa4a1, 0x40, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x7d, 0x1, 0x1, 0x6, 0x10, 0xb, [{{0x9, 0x4, 0x0, 0x4, 0x3, 0x2, 0x6, 0x0, 0xe, {{0xb, 0x24, 0x6, 0x0, 0x0, "d60132f149c6"}, {0x5, 0x24, 0x0, 0xbb8}, {0xd, 0x24, 0xf, 0x1, 0x7, 0x32a, 0x8, 0x1f}, [@obex={0x5, 0x24, 0x15, 0x101}, @mdlm={0x15, 0x24, 0x12, 0xfffc}, @network_terminal={0x7, 0x24, 0xa, 0xb, 0x9, 0xf, 0x2}, @call_mgmt={0x5, 0x24, 0x1, 0x1, 0xff}, @obex={0x5, 0x24, 0x15, 0x7ff}, @mbim_extended={0x8, 0x24, 0x1c, 0x5, 0x32, 0xa}]}, {[{{0x9, 0x5, 0x81, 0x3, 0x10, 0x7, 0x99, 0xb2}}], {{0x9, 0x5, 0x82, 0x2, 0x8, 0x1a, 0x7, 0xc4}}, {{0x9, 0x5, 0x3, 0x2, 0x3ff, 0xa6, 0x3, 0xa7}}}}}]}}]}}, &(0x7f0000007240)={0xa, &(0x7f0000006d80)={0xa, 0x6, 0x300, 0xfb, 0x3, 0xc, 0xff, 0x1}, 0x3c, &(0x7f0000006dc0)={0x5, 0xf, 0x3c, 0x6, [@ext_cap={0x7, 0x10, 0x2, 0x4, 0x7, 0x7, 0x56a9}, @wireless={0xb, 0x10, 0x1, 0x4, 0x42, 0x2, 0x3, 0x63ac, 0x9}, @ptm_cap={0x3}, @ext_cap={0x7, 0x10, 0x2, 0x1a, 0x7, 0xb, 0xd5}, @ssp_cap={0x10, 0x10, 0xa, 0x7f, 0x1, 0x12f, 0xf00, 0x1, [0x3fc0]}, @wireless={0xb, 0x10, 0x1, 0x8, 0x40, 0x7, 0x5, 0x2, 0x4}]}, 0x8, [{0x78, &(0x7f0000006e00)=@string={0x78, 0x3, "d7b4cadb72dce27ca7fb5209aad1b3585c8188f06126d3f18edd4cfa47addbd2a6715dd4adfa697f02bcb089ed2013268885f9c785bd7c5d4ee50de3cecd7a9d0b7b2e708226e8acb1e908b1f5c0c2a8132465e451fe49f15e60c8d3b9c84305d0dd8f634480050259cac3ce9cfc95092bd7e491866d"}}, {0x13, &(0x7f0000006e80)=@string={0x13, 0x3, "7d97d9eb8af2943b9985d30caaead89b5a"}}, {0x4, &(0x7f0000006ec0)=@lang_id={0x4, 0x3, 0x44a}}, {0x4, &(0x7f0000006f00)=@lang_id={0x4, 0x3, 0x1c09}}, {0x93, &(0x7f0000006f40)=@string={0x93, 0x3, "a7e5529238f796c9000c753f41b8183140f3914b76bf1c428ebe8d39c6f072b481ecad746274e7c538790d8c730d20517a2244a3781b115c07d40e9ec9c059f12d0d15f46ccf0cde26efa9d02a119e2cc5627c7f4241244d0843ef0018b12fc3cd467b5fdce58a6975d07ac352a42f1615178dcb0990aeca46461306816becdeb896bac765ded81ebd75ba4d97229b15a9"}}, {0xc2, &(0x7f0000007000)=@string={0xc2, 0x3, "d5a3d483012b31e49dfa33fd9593b4b668aa6f3f39301837d951daf256316819f5e71fa651bb06b2af65af27c7bf0fda1eaa1e32231b75f4d06d4923c76013e9d76a12202816ff8740a9fb4f2eceb27bd2e1ab1e7bd4ba7314b33d15e0fe65aa2b2e7ffb3236cb615493391feab3bfb828182fb60c4fd6fef422e106f384be633905ca1aaf83d9ddb2a2902e2a117de4e596145809b3b34b1ea432b412391ffb25ac255e7da11d994e7e9e98e0723a2757e580959dae6fa7ac2afb8dc5384b4a"}}, {0x5b, &(0x7f0000007100)=@string={0x5b, 0x3, "a794090968e46e97b7269fcae0f818bf9a99a50de60e5cda684721be6dc34820f912c338d7dc8ac50d93fc92a2ebde1a02652089726608a9e5877f4cacf91b9eec5b5eb2fc7fa7bb3d26607537f0e55d00793e7cf13bbb367e"}}, {0x90, &(0x7f0000007180)=@string={0x90, 0x3, "f9926b0dae8c462352105ed1c4d3ff50cc9ce982c397e92e576101317190c2327a2ba723844149e55f4b961d0f0defbc7edb70f5d61169074265acd81ceec5a15b66a5e5009236d062994af9afcbe04736aaad6bb55cb30e057c42d0df7481603c3c959b5e4e20f05382a9d9ad4c01680ae3597ef403dedf0b6c53fdc70d13ed116ef9ea902093f1c9f4af4cec25"}}]}) syz_usb_control_io(r39, &(0x7f0000007480)={0x2c, &(0x7f00000072c0)={0x40, 0x7, 0x1b, {0x1b, 0xa, "90730f1d9e91d2e1df577143e18c680eace6d6c12299246128"}}, &(0x7f0000007300)={0x0, 0x3, 0x44, @string={0x44, 0x3, "87d74dd46096809a8f4988ddaa95a532fbc22d8585d1592857ad0ab00c17a4fef3b229a02fe0e3649316bed9f44f588b1f0b47bc86705129440938bd68a29a84f829"}}, &(0x7f0000007380)={0x0, 0xf, 0x41, {0x5, 0xf, 0x41, 0x4, [@ssp_cap={0x20, 0x10, 0xa, 0x0, 0x5, 0xe85, 0xf00, 0x3, [0xff00a0, 0xff00f0, 0x30, 0xf, 0xdfbf]}, @ext_cap={0x7, 0x10, 0x2, 0x4, 0x4, 0x1, 0xff}, @wireless={0xb, 0x10, 0x1, 0x2, 0x1, 0x1, 0x3, 0x9, 0x8}, @ss_cap={0xa, 0x10, 0x3, 0x2, 0x4, 0x3, 0xb6, 0x5}]}}, &(0x7f0000007400)={0x20, 0x29, 0xf, {0xf, 0x29, 0xf, 0x4, 0x6, 0x32, "b2c84f72", "f5fb7b90"}}, &(0x7f0000007440)={0x20, 0x2a, 0xc, {0xc, 0x2a, 0x3a, 0x60, 0x4, 0x4, 0x7, 0x8001, 0x8}}}, &(0x7f0000007980)={0x84, &(0x7f00000074c0)={0x0, 0x0, 0xcf, "9f51c6ee54bfc1fc30d787499ab24493c2f30f78fe088e724ad29badb6c2406874a909d80e000075bbe92f6f4e8b3514481d12b869deb6f47f3b458369b7f024fcc02319e38cb7467c76b370d378ee0256daa3acea1f71be5e4c7d8a50037ba84e62445bbd990a26b44f60198d63505fbf005b96637abf5eb692a2ed0d582692e3f259387ed9d1955917dc53a246eb20e281e78386ed8734b81075e43b5b3e15ea60dbd497e07ad8847992dd87831b20d05263c108d70117e52170efac1777d3d376876358c2297172b2a023b52c05"}, &(0x7f00000075c0)={0x0, 0xa, 0x1, 0x2}, &(0x7f0000007600)={0x0, 0x8, 0x1, 0xfc}, &(0x7f0000007640)={0x20, 0x0, 0x4, {0x3, 0x1}}, &(0x7f0000007680)={0x20, 0x0, 0x4, {0x1d20, 0x20}}, &(0x7f00000076c0)={0x40, 0x7, 0x2, 0xfff8}, &(0x7f0000007700)={0x40, 0x9, 0x1, 0xd}, &(0x7f0000007740)={0x40, 0xb, 0x2, "2289"}, &(0x7f0000007780)={0x40, 0xf, 0x2, 0x2}, &(0x7f00000077c0)={0x40, 0x13, 0x6, @broadcast}, &(0x7f0000007800)={0x40, 0x17, 0x6, @random="eefa7a620165"}, &(0x7f0000007840)={0x40, 0x19, 0x2, "01d3"}, &(0x7f0000007880)={0x40, 0x1a, 0x2, 0x5}, &(0x7f00000078c0)={0x40, 0x1c, 0x1, 0xff}, &(0x7f0000007900)={0x40, 0x1e, 0x1, 0xf7}, &(0x7f0000007940)={0x40, 0x21, 0x1, 0xb}}) syz_usb_disconnect(r38) r40 = syz_usb_connect$hid(0x0, 0x3f, &(0x7f0000007a40)={{0x12, 0x1, 0x110, 0x0, 0x0, 0x0, 0xff, 0x46d, 0xc08d, 0x40, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x2d, 0x1, 0x1, 0x4, 0x50, 0x10, [{{0x9, 0x4, 0x0, 0xf9, 0x2, 0x3, 0x1, 0x2, 0x5, {0x9, 0x21, 0x81, 0x8, 0x1, {0x22, 0x6e7}}, {{{0x9, 0x5, 0x81, 0x3, 0x10, 0x8, 0xc, 0x6e}}, [{{0x9, 0x5, 0x2, 0x3, 0x200, 0x8, 0x1, 0x50}}]}}}]}}]}}, &(0x7f0000007f40)={0xa, &(0x7f0000007a80)={0xa, 0x6, 0x310, 0x48, 0xa5, 0xca, 0x8, 0x10}, 0x30, &(0x7f0000007ac0)={0x5, 0xf, 0x30, 0x4, [@ss_cap={0xa, 0x10, 0x3, 0x0, 0x5, 0x0, 0x1, 0x8a}, @ssp_cap={0x10, 0x10, 0xa, 0xa, 0x1, 0x0, 0xf00f, 0x7, [0x3f00]}, @ss_cap={0xa, 0x10, 0x3, 0x0, 0x4, 0x4, 0x8, 0xfff8}, @ext_cap={0x7, 0x10, 0x2, 0x4, 0x0, 0x5, 0x8001}]}, 0xa, [{0x4, &(0x7f0000007b00)=@lang_id={0x4, 0x3, 0x437}}, {0xf2, &(0x7f0000007b40)=@string={0xf2, 0x3, "f0019969b38f6afabd6c105967f2b79c116bf52e6af549271939cbeacdab5c8503cee7d1a67a62ea491b6b2f8647133f15b8e9707e4a77577e8afd8a1284459b66c7be93c43e84efcfc2f73e93d295998cc2f495ae5b1a3d5e12ef6e64664a3b5c79528b0119f78b0a61d807232537eb3d9c09add93823e6f878bbba00898be1017faf4e5f14d387401c45645954c04f8c83f9e5f0ae9913d9ccb88e7516d80f8e21c3b610429258169248a016de144abce7905f4dd3bf2698e9f3a5febc7c10ef4ed298e5f8facbb3c9344bb3ab33568a0f64f428d60dabe2bfe795df0603cdf76f606241fdd89c8ff9fe55ee2395fd"}}, {0x4, &(0x7f0000007c40)=@lang_id={0x4, 0x3, 0x2c0a}}, {0x89, &(0x7f0000007c80)=@string={0x89, 0x3, "05b7615d7a2ba83f5916d585e5290669a0c243e1c65f43d6c7680767f0da6805ce3566413a20f4b8664b77799c5c6061d9d19075d2f89b880caa622d3aa9108e5222e55336bf7850d2f7990a1314b0be81d606f8a99a6705e0ac44872072366abaea5f97d7ca08ed1eb25b707c92991e5537f945aa401d761349b628d6c928c1cfe5b09fd13272"}}, {0xb8, &(0x7f0000007d40)=@string={0xb8, 0x3, "f04a78648bb13ad6c53b44e42ed2f24d3205bf5161674ff375ecfa9f710dd4d52e29779bc4c1d41faf1b2e02fa2cb4ca6c449681b5c88b3775f82babde2258f8a001d811f8b64ce0753b228c161809770f39160ba4ea92490a38f82c3f18b44c81a148c48bbc4f716e64a85a985f3570d6132a4ac6e97f0ae7296582879c5d4e277be3d5867dc3df2606879bd5281225a34f3feba436eec16ddfbe611574be645a71c5e8be494e27918333f2431aeff2e9fed0608428"}}, {0x4, &(0x7f0000007e00)=@lang_id={0x4, 0x3, 0x40f}}, {0x4, &(0x7f0000007e40)=@lang_id={0x4, 0x3, 0x860}}, {0x4, &(0x7f0000007e80)=@lang_id={0x4, 0x3, 0xf4ef}}, {0x4, &(0x7f0000007ec0)=@lang_id={0x4, 0x3, 0x3001}}, {0x4, &(0x7f0000007f00)=@lang_id={0x4, 0x3, 0x2009}}]}) syz_usb_ep_read(r40, 0x0, 0x1000, &(0x7f0000008000)=""/4096) syz_usb_ep_write(r37, 0x6, 0x94, &(0x7f0000009000)="57bba2f04f3945da7a47037710f6d53d8dfad8a96c57e11cf5fcfee434fce88038e1904ecc2712334118e5002b0c107c286eb90314233fd5ce1d9ea5da0076741102d88517463ff118bd931282412de1f5ea71eb2bec91b82b7f7b64f8aae1d58e32de1deeb1c8264d59d639a1945f0090275e6bdbf18e86685ccb60a5fec9c7cebac5d05b5c84e6116f89d443fad3ce74d82080") syz_usbip_server_init(0x5) csource_test.go:158: failed to build program: // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifndef __NR_clone3 #define __NR_clone3 435 #endif #ifndef __NR_io_uring_setup #define __NR_io_uring_setup 425 #endif #ifndef __NR_memfd_create #define __NR_memfd_create 319 #endif #ifndef __NR_pidfd_open #define __NR_pidfd_open 434 #endif #ifndef __NR_pkey_alloc #define __NR_pkey_alloc 330 #endif #ifndef __NR_statx #define __NR_statx 332 #endif static unsigned long long procid; static void sleep_ms(uint64_t ms) { usleep(ms * 1000); } static uint64_t current_time_ms(void) { struct timespec ts; if (clock_gettime(CLOCK_MONOTONIC, &ts)) exit(1); return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000; } static void use_temporary_dir(void) { char tmpdir_template[] = "./syzkaller.XXXXXX"; char* tmpdir = mkdtemp(tmpdir_template); if (!tmpdir) exit(1); if (chmod(tmpdir, 0777)) exit(1); if (chdir(tmpdir)) exit(1); } static void thread_start(void* (*fn)(void*), void* arg) { pthread_t th; pthread_attr_t attr; pthread_attr_init(&attr); pthread_attr_setstacksize(&attr, 128 << 10); int i = 0; for (; i < 100; i++) { if (pthread_create(&th, &attr, fn, arg) == 0) { pthread_attr_destroy(&attr); return; } if (errno == EAGAIN) { usleep(50); continue; } break; } exit(1); } #define BITMASK(bf_off,bf_len) (((1ull << (bf_len)) - 1) << (bf_off)) #define STORE_BY_BITMASK(type,htobe,addr,val,bf_off,bf_len) *(type*)(addr) = htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) | (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len)))) typedef struct { int state; } event_t; static void event_init(event_t* ev) { ev->state = 0; } static void event_reset(event_t* ev) { ev->state = 0; } static void event_set(event_t* ev) { if (ev->state) exit(1); __atomic_store_n(&ev->state, 1, __ATOMIC_RELEASE); syscall(SYS_futex, &ev->state, FUTEX_WAKE | FUTEX_PRIVATE_FLAG, 1000000); } static void event_wait(event_t* ev) { while (!__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE)) syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, 0); } static int event_isset(event_t* ev) { return __atomic_load_n(&ev->state, __ATOMIC_ACQUIRE); } static int event_timedwait(event_t* ev, uint64_t timeout) { uint64_t start = current_time_ms(); uint64_t now = start; for (;;) { uint64_t remain = timeout - (now - start); struct timespec ts; ts.tv_sec = remain / 1000; ts.tv_nsec = (remain % 1000) * 1000 * 1000; syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, &ts); if (__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE)) return 1; now = current_time_ms(); if (now - start > timeout) return 0; } } static bool write_file(const char* file, const char* what, ...) { char buf[1024]; va_list args; va_start(args, what); vsnprintf(buf, sizeof(buf), what, args); va_end(args); buf[sizeof(buf) - 1] = 0; int len = strlen(buf); int fd = open(file, O_WRONLY | O_CLOEXEC); if (fd == -1) return false; if (write(fd, buf, len) != len) { int err = errno; close(fd); errno = err; return false; } close(fd); return true; } struct nlmsg { char* pos; int nesting; struct nlattr* nested[8]; char buf[4096]; }; static void netlink_init(struct nlmsg* nlmsg, int typ, int flags, const void* data, int size) { memset(nlmsg, 0, sizeof(*nlmsg)); struct nlmsghdr* hdr = (struct nlmsghdr*)nlmsg->buf; hdr->nlmsg_type = typ; hdr->nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK | flags; memcpy(hdr + 1, data, size); nlmsg->pos = (char*)(hdr + 1) + NLMSG_ALIGN(size); } static void netlink_attr(struct nlmsg* nlmsg, int typ, const void* data, int size) { struct nlattr* attr = (struct nlattr*)nlmsg->pos; attr->nla_len = sizeof(*attr) + size; attr->nla_type = typ; if (size > 0) memcpy(attr + 1, data, size); nlmsg->pos += NLMSG_ALIGN(attr->nla_len); } static int netlink_send_ext(struct nlmsg* nlmsg, int sock, uint16_t reply_type, int* reply_len, bool dofail) { if (nlmsg->pos > nlmsg->buf + sizeof(nlmsg->buf) || nlmsg->nesting) exit(1); struct nlmsghdr* hdr = (struct nlmsghdr*)nlmsg->buf; hdr->nlmsg_len = nlmsg->pos - nlmsg->buf; struct sockaddr_nl addr; memset(&addr, 0, sizeof(addr)); addr.nl_family = AF_NETLINK; ssize_t n = sendto(sock, nlmsg->buf, hdr->nlmsg_len, 0, (struct sockaddr*)&addr, sizeof(addr)); if (n != (ssize_t)hdr->nlmsg_len) { if (dofail) exit(1); return -1; } n = recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0); if (reply_len) *reply_len = 0; if (n < 0) { if (dofail) exit(1); return -1; } if (n < (ssize_t)sizeof(struct nlmsghdr)) { errno = EINVAL; if (dofail) exit(1); return -1; } if (hdr->nlmsg_type == NLMSG_DONE) return 0; if (reply_len && hdr->nlmsg_type == reply_type) { *reply_len = n; return 0; } if (n < (ssize_t)(sizeof(struct nlmsghdr) + sizeof(struct nlmsgerr))) { errno = EINVAL; if (dofail) exit(1); return -1; } if (hdr->nlmsg_type != NLMSG_ERROR) { errno = EINVAL; if (dofail) exit(1); return -1; } errno = -((struct nlmsgerr*)(hdr + 1))->error; return -errno; } static int netlink_query_family_id(struct nlmsg* nlmsg, int sock, const char* family_name, bool dofail) { struct genlmsghdr genlhdr; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = CTRL_CMD_GETFAMILY; netlink_init(nlmsg, GENL_ID_CTRL, 0, &genlhdr, sizeof(genlhdr)); netlink_attr(nlmsg, CTRL_ATTR_FAMILY_NAME, family_name, strnlen(family_name, GENL_NAMSIZ - 1) + 1); int n = 0; int err = netlink_send_ext(nlmsg, sock, GENL_ID_CTRL, &n, dofail); if (err < 0) { return -1; } uint16_t id = 0; struct nlattr* attr = (struct nlattr*)(nlmsg->buf + NLMSG_HDRLEN + NLMSG_ALIGN(sizeof(genlhdr))); for (; (char*)attr < nlmsg->buf + n; attr = (struct nlattr*)((char*)attr + NLMSG_ALIGN(attr->nla_len))) { if (attr->nla_type == CTRL_ATTR_FAMILY_ID) { id = *(uint16_t*)(attr + 1); break; } } if (!id) { errno = EINVAL; return -1; } recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0); return id; } const int kInitNetNsFd = 201; #define WIFI_INITIAL_DEVICE_COUNT 2 #define WIFI_MAC_BASE { 0x08, 0x02, 0x11, 0x00, 0x00, 0x00} #define WIFI_IBSS_BSSID { 0x50, 0x50, 0x50, 0x50, 0x50, 0x50} #define WIFI_IBSS_SSID { 0x10, 0x10, 0x10, 0x10, 0x10, 0x10} #define WIFI_DEFAULT_FREQUENCY 2412 #define WIFI_DEFAULT_SIGNAL 0 #define WIFI_DEFAULT_RX_RATE 1 #define HWSIM_CMD_REGISTER 1 #define HWSIM_CMD_FRAME 2 #define HWSIM_CMD_NEW_RADIO 4 #define HWSIM_ATTR_SUPPORT_P2P_DEVICE 14 #define HWSIM_ATTR_PERM_ADDR 22 #define IF_OPER_UP 6 struct join_ibss_props { int wiphy_freq; bool wiphy_freq_fixed; uint8_t* mac; uint8_t* ssid; int ssid_len; }; static int set_interface_state(const char* interface_name, int on) { struct ifreq ifr; int sock = socket(AF_INET, SOCK_DGRAM, 0); if (sock < 0) { return -1; } memset(&ifr, 0, sizeof(ifr)); strcpy(ifr.ifr_name, interface_name); int ret = ioctl(sock, SIOCGIFFLAGS, &ifr); if (ret < 0) { close(sock); return -1; } if (on) ifr.ifr_flags |= IFF_UP; else ifr.ifr_flags &= ~IFF_UP; ret = ioctl(sock, SIOCSIFFLAGS, &ifr); close(sock); if (ret < 0) { return -1; } return 0; } static int nl80211_set_interface(struct nlmsg* nlmsg, int sock, int nl80211_family, uint32_t ifindex, uint32_t iftype, bool dofail) { struct genlmsghdr genlhdr; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = NL80211_CMD_SET_INTERFACE; netlink_init(nlmsg, nl80211_family, 0, &genlhdr, sizeof(genlhdr)); netlink_attr(nlmsg, NL80211_ATTR_IFINDEX, &ifindex, sizeof(ifindex)); netlink_attr(nlmsg, NL80211_ATTR_IFTYPE, &iftype, sizeof(iftype)); int err = netlink_send_ext(nlmsg, sock, 0, NULL, dofail); if (err < 0) { } return err; } static int nl80211_join_ibss(struct nlmsg* nlmsg, int sock, int nl80211_family, uint32_t ifindex, struct join_ibss_props* props, bool dofail) { struct genlmsghdr genlhdr; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = NL80211_CMD_JOIN_IBSS; netlink_init(nlmsg, nl80211_family, 0, &genlhdr, sizeof(genlhdr)); netlink_attr(nlmsg, NL80211_ATTR_IFINDEX, &ifindex, sizeof(ifindex)); netlink_attr(nlmsg, NL80211_ATTR_SSID, props->ssid, props->ssid_len); netlink_attr(nlmsg, NL80211_ATTR_WIPHY_FREQ, &(props->wiphy_freq), sizeof(props->wiphy_freq)); if (props->mac) netlink_attr(nlmsg, NL80211_ATTR_MAC, props->mac, ETH_ALEN); if (props->wiphy_freq_fixed) netlink_attr(nlmsg, NL80211_ATTR_FREQ_FIXED, NULL, 0); int err = netlink_send_ext(nlmsg, sock, 0, NULL, dofail); if (err < 0) { } return err; } static int get_ifla_operstate(struct nlmsg* nlmsg, int ifindex, bool dofail) { struct ifinfomsg info; memset(&info, 0, sizeof(info)); info.ifi_family = AF_UNSPEC; info.ifi_index = ifindex; int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE); if (sock == -1) { return -1; } netlink_init(nlmsg, RTM_GETLINK, 0, &info, sizeof(info)); int n; int err = netlink_send_ext(nlmsg, sock, RTM_NEWLINK, &n, dofail); close(sock); if (err) { return -1; } struct rtattr* attr = IFLA_RTA(NLMSG_DATA(nlmsg->buf)); for (; RTA_OK(attr, n); attr = RTA_NEXT(attr, n)) { if (attr->rta_type == IFLA_OPERSTATE) return *((int32_t*)RTA_DATA(attr)); } return -1; } static int await_ifla_operstate(struct nlmsg* nlmsg, char* interface, int operstate, bool dofail) { int ifindex = if_nametoindex(interface); while (true) { usleep(1000); int ret = get_ifla_operstate(nlmsg, ifindex, dofail); if (ret < 0) return ret; if (ret == operstate) return 0; } return 0; } static int nl80211_setup_ibss_interface(struct nlmsg* nlmsg, int sock, int nl80211_family_id, char* interface, struct join_ibss_props* ibss_props, bool dofail) { int ifindex = if_nametoindex(interface); if (ifindex == 0) { return -1; } int ret = nl80211_set_interface(nlmsg, sock, nl80211_family_id, ifindex, NL80211_IFTYPE_ADHOC, dofail); if (ret < 0) { return -1; } ret = set_interface_state(interface, 1); if (ret < 0) { return -1; } ret = nl80211_join_ibss(nlmsg, sock, nl80211_family_id, ifindex, ibss_props, dofail); if (ret < 0) { return -1; } return 0; } #define SIZEOF_IO_URING_SQE 64 #define SIZEOF_IO_URING_CQE 16 #define SQ_HEAD_OFFSET 0 #define SQ_TAIL_OFFSET 64 #define SQ_RING_MASK_OFFSET 256 #define SQ_RING_ENTRIES_OFFSET 264 #define SQ_FLAGS_OFFSET 276 #define SQ_DROPPED_OFFSET 272 #define CQ_HEAD_OFFSET 128 #define CQ_TAIL_OFFSET 192 #define CQ_RING_MASK_OFFSET 260 #define CQ_RING_ENTRIES_OFFSET 268 #define CQ_RING_OVERFLOW_OFFSET 284 #define CQ_FLAGS_OFFSET 280 #define CQ_CQES_OFFSET 320 struct io_uring_cqe { uint64_t user_data; uint32_t res; uint32_t flags; }; static long syz_io_uring_complete(volatile long a0) { char* ring_ptr = (char*)a0; uint32_t cq_ring_mask = *(uint32_t*)(ring_ptr + CQ_RING_MASK_OFFSET); uint32_t* cq_head_ptr = (uint32_t*)(ring_ptr + CQ_HEAD_OFFSET); uint32_t cq_head = *cq_head_ptr & cq_ring_mask; uint32_t cq_head_next = *cq_head_ptr + 1; char* cqe_src = ring_ptr + CQ_CQES_OFFSET + cq_head * SIZEOF_IO_URING_CQE; struct io_uring_cqe cqe; memcpy(&cqe, cqe_src, sizeof(cqe)); __atomic_store_n(cq_head_ptr, cq_head_next, __ATOMIC_RELEASE); return (cqe.user_data == 0x12345 || cqe.user_data == 0x23456) ? (long)cqe.res : (long)-1; } struct io_sqring_offsets { uint32_t head; uint32_t tail; uint32_t ring_mask; uint32_t ring_entries; uint32_t flags; uint32_t dropped; uint32_t array; uint32_t resv1; uint64_t resv2; }; struct io_cqring_offsets { uint32_t head; uint32_t tail; uint32_t ring_mask; uint32_t ring_entries; uint32_t overflow; uint32_t cqes; uint64_t resv[2]; }; struct io_uring_params { uint32_t sq_entries; uint32_t cq_entries; uint32_t flags; uint32_t sq_thread_cpu; uint32_t sq_thread_idle; uint32_t features; uint32_t resv[4]; struct io_sqring_offsets sq_off; struct io_cqring_offsets cq_off; }; #define IORING_OFF_SQ_RING 0 #define IORING_OFF_SQES 0x10000000ULL #define IORING_SETUP_SQE128 (1U << 10) #define IORING_SETUP_CQE32 (1U << 11) static long syz_io_uring_setup(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { uint32_t entries = (uint32_t)a0; struct io_uring_params* setup_params = (struct io_uring_params*)a1; void** ring_ptr_out = (void**)a2; void** sqes_ptr_out = (void**)a3; setup_params->flags &= ~(IORING_SETUP_CQE32 | IORING_SETUP_SQE128); uint32_t fd_io_uring = syscall(__NR_io_uring_setup, entries, setup_params); uint32_t sq_ring_sz = setup_params->sq_off.array + setup_params->sq_entries * sizeof(uint32_t); uint32_t cq_ring_sz = setup_params->cq_off.cqes + setup_params->cq_entries * SIZEOF_IO_URING_CQE; uint32_t ring_sz = sq_ring_sz > cq_ring_sz ? sq_ring_sz : cq_ring_sz; *ring_ptr_out = mmap(0, ring_sz, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_POPULATE, fd_io_uring, IORING_OFF_SQ_RING); uint32_t sqes_sz = setup_params->sq_entries * SIZEOF_IO_URING_SQE; *sqes_ptr_out = mmap(0, sqes_sz, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_POPULATE, fd_io_uring, IORING_OFF_SQES); uint32_t* array = (uint32_t*)((uintptr_t)*ring_ptr_out + setup_params->sq_off.array); for (uint32_t index = 0; index < entries; index++) array[index] = index; return fd_io_uring; } static long syz_io_uring_submit(volatile long a0, volatile long a1, volatile long a2) { char* ring_ptr = (char*)a0; char* sqes_ptr = (char*)a1; char* sqe = (char*)a2; uint32_t sq_ring_mask = *(uint32_t*)(ring_ptr + SQ_RING_MASK_OFFSET); uint32_t* sq_tail_ptr = (uint32_t*)(ring_ptr + SQ_TAIL_OFFSET); uint32_t sq_tail = *sq_tail_ptr & sq_ring_mask; char* sqe_dest = sqes_ptr + sq_tail * SIZEOF_IO_URING_SQE; memcpy(sqe_dest, sqe, SIZEOF_IO_URING_SQE); uint32_t sq_tail_next = *sq_tail_ptr + 1; __atomic_store_n(sq_tail_ptr, sq_tail_next, __ATOMIC_RELEASE); return 0; } #define VHCI_HC_PORTS 8 #define VHCI_PORTS (VHCI_HC_PORTS * 2) static long syz_usbip_server_init(volatile long a0) { static int port_alloc[2]; int speed = (int)a0; bool usb3 = (speed == USB_SPEED_SUPER); int socket_pair[2]; if (socketpair(AF_UNIX, SOCK_STREAM, 0, socket_pair)) { return -1; } int client_fd = socket_pair[0]; int server_fd = socket_pair[1]; int available_port_num = __atomic_fetch_add(&port_alloc[usb3], 1, __ATOMIC_RELAXED); if (available_port_num > VHCI_HC_PORTS) { return -1; } int port_num = procid * VHCI_PORTS + usb3 * VHCI_HC_PORTS + available_port_num; char buffer[100]; sprintf(buffer, "%d %d %s %d", port_num, client_fd, "0", speed); write_file("/sys/devices/platform/vhci_hcd.0/attach", buffer); return server_fd; } #define BTF_MAGIC 0xeB9F struct btf_header { __u16 magic; __u8 version; __u8 flags; __u32 hdr_len; __u32 type_off; __u32 type_len; __u32 str_off; __u32 str_len; }; #define BTF_INFO_KIND(info) (((info) >> 24) & 0x0f) #define BTF_INFO_VLEN(info) ((info) & 0xffff) #define BTF_KIND_INT 1 #define BTF_KIND_ARRAY 3 #define BTF_KIND_STRUCT 4 #define BTF_KIND_UNION 5 #define BTF_KIND_ENUM 6 #define BTF_KIND_FUNC_PROTO 13 #define BTF_KIND_VAR 14 #define BTF_KIND_DATASEC 15 struct btf_type { __u32 name_off; __u32 info; union { __u32 size; __u32 type; }; }; struct btf_enum { __u32 name_off; __s32 val; }; struct btf_array { __u32 type; __u32 index_type; __u32 nelems; }; struct btf_member { __u32 name_off; __u32 type; __u32 offset; }; struct btf_param { __u32 name_off; __u32 type; }; struct btf_var { __u32 linkage; }; struct btf_var_secinfo { __u32 type; __u32 offset; __u32 size; }; #define VMLINUX_MAX_SUPPORT_SIZE (10 * 1024 * 1024) static char* read_btf_vmlinux() { static bool is_read = false; static char buf[VMLINUX_MAX_SUPPORT_SIZE]; if (is_read) return buf; int fd = open("/sys/kernel/btf/vmlinux", O_RDONLY); if (fd < 0) return NULL; unsigned long bytes_read = 0; for (;;) { ssize_t ret = read(fd, buf + bytes_read, VMLINUX_MAX_SUPPORT_SIZE - bytes_read); if (ret < 0 || bytes_read + ret == VMLINUX_MAX_SUPPORT_SIZE) return NULL; if (ret == 0) break; bytes_read += ret; } is_read = true; return buf; } static long syz_btf_id_by_name(volatile long a0) { char* target = (char*)a0; char* vmlinux = read_btf_vmlinux(); if (vmlinux == NULL) return -1; struct btf_header* btf_header = (struct btf_header*)vmlinux; if (btf_header->magic != BTF_MAGIC) return -1; char* btf_type_sec = vmlinux + btf_header->hdr_len + btf_header->type_off; char* btf_str_sec = vmlinux + btf_header->hdr_len + btf_header->str_off; unsigned int bytes_parsed = 0; long idx = 1; while (bytes_parsed < btf_header->type_len) { struct btf_type* btf_type = (struct btf_type*)(btf_type_sec + bytes_parsed); uint32_t kind = BTF_INFO_KIND(btf_type->info); uint32_t vlen = BTF_INFO_VLEN(btf_type->info); char* name = btf_str_sec + btf_type->name_off; if (strcmp(name, target) == 0) return idx; size_t skip; switch (kind) { case BTF_KIND_INT: skip = sizeof(uint32_t); break; case BTF_KIND_ENUM: skip = sizeof(struct btf_enum) * vlen; break; case BTF_KIND_ARRAY: skip = sizeof(struct btf_array); break; case BTF_KIND_STRUCT: case BTF_KIND_UNION: skip = sizeof(struct btf_member) * vlen; break; case BTF_KIND_FUNC_PROTO: skip = sizeof(struct btf_param) * vlen; break; case BTF_KIND_VAR: skip = sizeof(struct btf_var); break; case BTF_KIND_DATASEC: skip = sizeof(struct btf_var_secinfo) * vlen; break; default: skip = 0; } bytes_parsed += sizeof(struct btf_type) + skip; idx++; } return -1; } static long syz_memcpy_off(volatile long a0, volatile long a1, volatile long a2, volatile long a3, volatile long a4) { char* dest = (char*)a0; uint32_t dest_off = (uint32_t)a1; char* src = (char*)a2; uint32_t src_off = (uint32_t)a3; size_t n = (size_t)a4; return (long)memcpy(dest + dest_off, src + src_off, n); } static long syz_create_resource(volatile long val) { return val; } #define MAX_FDS 30 #define USB_MAX_IFACE_NUM 4 #define USB_MAX_EP_NUM 32 #define USB_MAX_FDS 6 struct usb_endpoint_index { struct usb_endpoint_descriptor desc; int handle; }; struct usb_iface_index { struct usb_interface_descriptor* iface; uint8_t bInterfaceNumber; uint8_t bAlternateSetting; uint8_t bInterfaceClass; struct usb_endpoint_index eps[USB_MAX_EP_NUM]; int eps_num; }; struct usb_device_index { struct usb_device_descriptor* dev; struct usb_config_descriptor* config; uint8_t bDeviceClass; uint8_t bMaxPower; int config_length; struct usb_iface_index ifaces[USB_MAX_IFACE_NUM]; int ifaces_num; int iface_cur; }; struct usb_info { int fd; struct usb_device_index index; }; static struct usb_info usb_devices[USB_MAX_FDS]; static struct usb_device_index* lookup_usb_index(int fd) { for (int i = 0; i < USB_MAX_FDS; i++) { if (__atomic_load_n(&usb_devices[i].fd, __ATOMIC_ACQUIRE) == fd) return &usb_devices[i].index; } return NULL; } static int usb_devices_num; static bool parse_usb_descriptor(const char* buffer, size_t length, struct usb_device_index* index) { if (length < sizeof(*index->dev) + sizeof(*index->config)) return false; memset(index, 0, sizeof(*index)); index->dev = (struct usb_device_descriptor*)buffer; index->config = (struct usb_config_descriptor*)(buffer + sizeof(*index->dev)); index->bDeviceClass = index->dev->bDeviceClass; index->bMaxPower = index->config->bMaxPower; index->config_length = length - sizeof(*index->dev); index->iface_cur = -1; size_t offset = 0; while (true) { if (offset + 1 >= length) break; uint8_t desc_length = buffer[offset]; uint8_t desc_type = buffer[offset + 1]; if (desc_length <= 2) break; if (offset + desc_length > length) break; if (desc_type == USB_DT_INTERFACE && index->ifaces_num < USB_MAX_IFACE_NUM) { struct usb_interface_descriptor* iface = (struct usb_interface_descriptor*)(buffer + offset); index->ifaces[index->ifaces_num].iface = iface; index->ifaces[index->ifaces_num].bInterfaceNumber = iface->bInterfaceNumber; index->ifaces[index->ifaces_num].bAlternateSetting = iface->bAlternateSetting; index->ifaces[index->ifaces_num].bInterfaceClass = iface->bInterfaceClass; index->ifaces_num++; } if (desc_type == USB_DT_ENDPOINT && index->ifaces_num > 0) { struct usb_iface_index* iface = &index->ifaces[index->ifaces_num - 1]; if (iface->eps_num < USB_MAX_EP_NUM) { memcpy(&iface->eps[iface->eps_num].desc, buffer + offset, sizeof(iface->eps[iface->eps_num].desc)); iface->eps_num++; } } offset += desc_length; } return true; } static struct usb_device_index* add_usb_index(int fd, const char* dev, size_t dev_len) { int i = __atomic_fetch_add(&usb_devices_num, 1, __ATOMIC_RELAXED); if (i >= USB_MAX_FDS) return NULL; if (!parse_usb_descriptor(dev, dev_len, &usb_devices[i].index)) return NULL; __atomic_store_n(&usb_devices[i].fd, fd, __ATOMIC_RELEASE); return &usb_devices[i].index; } struct vusb_connect_string_descriptor { uint32_t len; char* str; } __attribute__((packed)); struct vusb_connect_descriptors { uint32_t qual_len; char* qual; uint32_t bos_len; char* bos; uint32_t strs_len; struct vusb_connect_string_descriptor strs[0]; } __attribute__((packed)); static const char default_string[] = { 8, USB_DT_STRING, 's', 0, 'y', 0, 'z', 0 }; static const char default_lang_id[] = { 4, USB_DT_STRING, 0x09, 0x04 }; static bool lookup_connect_response_in(int fd, const struct vusb_connect_descriptors* descs, const struct usb_ctrlrequest* ctrl, struct usb_qualifier_descriptor* qual, char** response_data, uint32_t* response_length) { struct usb_device_index* index = lookup_usb_index(fd); uint8_t str_idx; if (!index) return false; switch (ctrl->bRequestType & USB_TYPE_MASK) { case USB_TYPE_STANDARD: switch (ctrl->bRequest) { case USB_REQ_GET_DESCRIPTOR: switch (ctrl->wValue >> 8) { case USB_DT_DEVICE: *response_data = (char*)index->dev; *response_length = sizeof(*index->dev); return true; case USB_DT_CONFIG: *response_data = (char*)index->config; *response_length = index->config_length; return true; case USB_DT_STRING: str_idx = (uint8_t)ctrl->wValue; if (descs && str_idx < descs->strs_len) { *response_data = descs->strs[str_idx].str; *response_length = descs->strs[str_idx].len; return true; } if (str_idx == 0) { *response_data = (char*)&default_lang_id[0]; *response_length = default_lang_id[0]; return true; } *response_data = (char*)&default_string[0]; *response_length = default_string[0]; return true; case USB_DT_BOS: *response_data = descs->bos; *response_length = descs->bos_len; return true; case USB_DT_DEVICE_QUALIFIER: if (!descs->qual) { qual->bLength = sizeof(*qual); qual->bDescriptorType = USB_DT_DEVICE_QUALIFIER; qual->bcdUSB = index->dev->bcdUSB; qual->bDeviceClass = index->dev->bDeviceClass; qual->bDeviceSubClass = index->dev->bDeviceSubClass; qual->bDeviceProtocol = index->dev->bDeviceProtocol; qual->bMaxPacketSize0 = index->dev->bMaxPacketSize0; qual->bNumConfigurations = index->dev->bNumConfigurations; qual->bRESERVED = 0; *response_data = (char*)qual; *response_length = sizeof(*qual); return true; } *response_data = descs->qual; *response_length = descs->qual_len; return true; default: break; } break; default: break; } break; default: break; } return false; } typedef bool (*lookup_connect_out_response_t)(int fd, const struct vusb_connect_descriptors* descs, const struct usb_ctrlrequest* ctrl, bool* done); static bool lookup_connect_response_out_generic(int fd, const struct vusb_connect_descriptors* descs, const struct usb_ctrlrequest* ctrl, bool* done) { switch (ctrl->bRequestType & USB_TYPE_MASK) { case USB_TYPE_STANDARD: switch (ctrl->bRequest) { case USB_REQ_SET_CONFIGURATION: *done = true; return true; default: break; } break; } return false; } #define ATH9K_FIRMWARE_DOWNLOAD 0x30 #define ATH9K_FIRMWARE_DOWNLOAD_COMP 0x31 static bool lookup_connect_response_out_ath9k(int fd, const struct vusb_connect_descriptors* descs, const struct usb_ctrlrequest* ctrl, bool* done) { switch (ctrl->bRequestType & USB_TYPE_MASK) { case USB_TYPE_STANDARD: switch (ctrl->bRequest) { case USB_REQ_SET_CONFIGURATION: return true; default: break; } break; case USB_TYPE_VENDOR: switch (ctrl->bRequest) { case ATH9K_FIRMWARE_DOWNLOAD: return true; case ATH9K_FIRMWARE_DOWNLOAD_COMP: *done = true; return true; default: break; } break; } return false; } struct vusb_descriptor { uint8_t req_type; uint8_t desc_type; uint32_t len; char data[0]; } __attribute__((packed)); struct vusb_descriptors { uint32_t len; struct vusb_descriptor* generic; struct vusb_descriptor* descs[0]; } __attribute__((packed)); struct vusb_response { uint8_t type; uint8_t req; uint32_t len; char data[0]; } __attribute__((packed)); struct vusb_responses { uint32_t len; struct vusb_response* generic; struct vusb_response* resps[0]; } __attribute__((packed)); static bool lookup_control_response(const struct vusb_descriptors* descs, const struct vusb_responses* resps, struct usb_ctrlrequest* ctrl, char** response_data, uint32_t* response_length) { int descs_num = 0; int resps_num = 0; if (descs) descs_num = (descs->len - offsetof(struct vusb_descriptors, descs)) / sizeof(descs->descs[0]); if (resps) resps_num = (resps->len - offsetof(struct vusb_responses, resps)) / sizeof(resps->resps[0]); uint8_t req = ctrl->bRequest; uint8_t req_type = ctrl->bRequestType & USB_TYPE_MASK; uint8_t desc_type = ctrl->wValue >> 8; if (req == USB_REQ_GET_DESCRIPTOR) { int i; for (i = 0; i < descs_num; i++) { struct vusb_descriptor* desc = descs->descs[i]; if (!desc) continue; if (desc->req_type == req_type && desc->desc_type == desc_type) { *response_length = desc->len; if (*response_length != 0) *response_data = &desc->data[0]; else *response_data = NULL; return true; } } if (descs && descs->generic) { *response_data = &descs->generic->data[0]; *response_length = descs->generic->len; return true; } } else { int i; for (i = 0; i < resps_num; i++) { struct vusb_response* resp = resps->resps[i]; if (!resp) continue; if (resp->type == req_type && resp->req == req) { *response_length = resp->len; if (*response_length != 0) *response_data = &resp->data[0]; else *response_data = NULL; return true; } } if (resps && resps->generic) { *response_data = &resps->generic->data[0]; *response_length = resps->generic->len; return true; } } return false; } #define UDC_NAME_LENGTH_MAX 128 struct usb_raw_init { __u8 driver_name[UDC_NAME_LENGTH_MAX]; __u8 device_name[UDC_NAME_LENGTH_MAX]; __u8 speed; }; enum usb_raw_event_type { USB_RAW_EVENT_INVALID = 0, USB_RAW_EVENT_CONNECT = 1, USB_RAW_EVENT_CONTROL = 2, }; struct usb_raw_event { __u32 type; __u32 length; __u8 data[0]; }; struct usb_raw_ep_io { __u16 ep; __u16 flags; __u32 length; __u8 data[0]; }; #define USB_RAW_EPS_NUM_MAX 30 #define USB_RAW_EP_NAME_MAX 16 #define USB_RAW_EP_ADDR_ANY 0xff struct usb_raw_ep_caps { __u32 type_control : 1; __u32 type_iso : 1; __u32 type_bulk : 1; __u32 type_int : 1; __u32 dir_in : 1; __u32 dir_out : 1; }; struct usb_raw_ep_limits { __u16 maxpacket_limit; __u16 max_streams; __u32 reserved; }; struct usb_raw_ep_info { __u8 name[USB_RAW_EP_NAME_MAX]; __u32 addr; struct usb_raw_ep_caps caps; struct usb_raw_ep_limits limits; }; struct usb_raw_eps_info { struct usb_raw_ep_info eps[USB_RAW_EPS_NUM_MAX]; }; #define USB_RAW_IOCTL_INIT _IOW('U', 0, struct usb_raw_init) #define USB_RAW_IOCTL_RUN _IO('U', 1) #define USB_RAW_IOCTL_EVENT_FETCH _IOR('U', 2, struct usb_raw_event) #define USB_RAW_IOCTL_EP0_WRITE _IOW('U', 3, struct usb_raw_ep_io) #define USB_RAW_IOCTL_EP0_READ _IOWR('U', 4, struct usb_raw_ep_io) #define USB_RAW_IOCTL_EP_ENABLE _IOW('U', 5, struct usb_endpoint_descriptor) #define USB_RAW_IOCTL_EP_DISABLE _IOW('U', 6, __u32) #define USB_RAW_IOCTL_EP_WRITE _IOW('U', 7, struct usb_raw_ep_io) #define USB_RAW_IOCTL_EP_READ _IOWR('U', 8, struct usb_raw_ep_io) #define USB_RAW_IOCTL_CONFIGURE _IO('U', 9) #define USB_RAW_IOCTL_VBUS_DRAW _IOW('U', 10, __u32) #define USB_RAW_IOCTL_EPS_INFO _IOR('U', 11, struct usb_raw_eps_info) #define USB_RAW_IOCTL_EP0_STALL _IO('U', 12) #define USB_RAW_IOCTL_EP_SET_HALT _IOW('U', 13, __u32) #define USB_RAW_IOCTL_EP_CLEAR_HALT _IOW('U', 14, __u32) #define USB_RAW_IOCTL_EP_SET_WEDGE _IOW('U', 15, __u32) static int usb_raw_open() { return open("/dev/raw-gadget", O_RDWR); } static int usb_raw_init(int fd, uint32_t speed, const char* driver, const char* device) { struct usb_raw_init arg; strncpy((char*)&arg.driver_name[0], driver, sizeof(arg.driver_name)); strncpy((char*)&arg.device_name[0], device, sizeof(arg.device_name)); arg.speed = speed; return ioctl(fd, USB_RAW_IOCTL_INIT, &arg); } static int usb_raw_run(int fd) { return ioctl(fd, USB_RAW_IOCTL_RUN, 0); } static int usb_raw_ep_write(int fd, struct usb_raw_ep_io* io) { return ioctl(fd, USB_RAW_IOCTL_EP_WRITE, io); } static int usb_raw_ep_read(int fd, struct usb_raw_ep_io* io) { return ioctl(fd, USB_RAW_IOCTL_EP_READ, io); } static int usb_raw_configure(int fd) { return ioctl(fd, USB_RAW_IOCTL_CONFIGURE, 0); } static int usb_raw_vbus_draw(int fd, uint32_t power) { return ioctl(fd, USB_RAW_IOCTL_VBUS_DRAW, power); } static int usb_raw_ep0_write(int fd, struct usb_raw_ep_io* io) { return ioctl(fd, USB_RAW_IOCTL_EP0_WRITE, io); } static int usb_raw_ep0_read(int fd, struct usb_raw_ep_io* io) { return ioctl(fd, USB_RAW_IOCTL_EP0_READ, io); } static int usb_raw_event_fetch(int fd, struct usb_raw_event* event) { return ioctl(fd, USB_RAW_IOCTL_EVENT_FETCH, event); } static int usb_raw_ep_enable(int fd, struct usb_endpoint_descriptor* desc) { return ioctl(fd, USB_RAW_IOCTL_EP_ENABLE, desc); } static int usb_raw_ep_disable(int fd, int ep) { return ioctl(fd, USB_RAW_IOCTL_EP_DISABLE, ep); } static int usb_raw_ep0_stall(int fd) { return ioctl(fd, USB_RAW_IOCTL_EP0_STALL, 0); } static int lookup_interface(int fd, uint8_t bInterfaceNumber, uint8_t bAlternateSetting) { struct usb_device_index* index = lookup_usb_index(fd); if (!index) return -1; for (int i = 0; i < index->ifaces_num; i++) { if (index->ifaces[i].bInterfaceNumber == bInterfaceNumber && index->ifaces[i].bAlternateSetting == bAlternateSetting) return i; } return -1; } static int lookup_endpoint(int fd, uint8_t bEndpointAddress) { struct usb_device_index* index = lookup_usb_index(fd); if (!index) return -1; if (index->iface_cur < 0) return -1; for (int ep = 0; ep < index->ifaces[index->iface_cur].eps_num; ep++) if (index->ifaces[index->iface_cur].eps[ep].desc.bEndpointAddress == bEndpointAddress) return index->ifaces[index->iface_cur].eps[ep].handle; return -1; } #define USB_MAX_PACKET_SIZE 4096 struct usb_raw_control_event { struct usb_raw_event inner; struct usb_ctrlrequest ctrl; char data[USB_MAX_PACKET_SIZE]; }; struct usb_raw_ep_io_data { struct usb_raw_ep_io inner; char data[USB_MAX_PACKET_SIZE]; }; static void set_interface(int fd, int n) { struct usb_device_index* index = lookup_usb_index(fd); if (!index) return; if (index->iface_cur >= 0 && index->iface_cur < index->ifaces_num) { for (int ep = 0; ep < index->ifaces[index->iface_cur].eps_num; ep++) { int rv = usb_raw_ep_disable(fd, index->ifaces[index->iface_cur].eps[ep].handle); if (rv < 0) { } else { } } } if (n >= 0 && n < index->ifaces_num) { for (int ep = 0; ep < index->ifaces[n].eps_num; ep++) { int rv = usb_raw_ep_enable(fd, &index->ifaces[n].eps[ep].desc); if (rv < 0) { } else { index->ifaces[n].eps[ep].handle = rv; } } index->iface_cur = n; } } static int configure_device(int fd) { struct usb_device_index* index = lookup_usb_index(fd); if (!index) return -1; int rv = usb_raw_vbus_draw(fd, index->bMaxPower); if (rv < 0) { return rv; } rv = usb_raw_configure(fd); if (rv < 0) { return rv; } set_interface(fd, 0); return 0; } static volatile long syz_usb_connect_impl(uint64_t speed, uint64_t dev_len, const char* dev, const struct vusb_connect_descriptors* descs, lookup_connect_out_response_t lookup_connect_response_out) { if (!dev) { return -1; } int fd = usb_raw_open(); if (fd < 0) { return fd; } if (fd >= MAX_FDS) { close(fd); return -1; } struct usb_device_index* index = add_usb_index(fd, dev, dev_len); if (!index) { return -1; } char device[32]; sprintf(&device[0], "dummy_udc.%llu", procid); int rv = usb_raw_init(fd, speed, "dummy_udc", &device[0]); if (rv < 0) { return rv; } rv = usb_raw_run(fd); if (rv < 0) { return rv; } bool done = false; while (!done) { struct usb_raw_control_event event; event.inner.type = 0; event.inner.length = sizeof(event.ctrl); rv = usb_raw_event_fetch(fd, (struct usb_raw_event*)&event); if (rv < 0) { return rv; } if (event.inner.type != USB_RAW_EVENT_CONTROL) continue; char* response_data = NULL; uint32_t response_length = 0; struct usb_qualifier_descriptor qual; if (event.ctrl.bRequestType & USB_DIR_IN) { if (!lookup_connect_response_in(fd, descs, &event.ctrl, &qual, &response_data, &response_length)) { usb_raw_ep0_stall(fd); continue; } } else { if (!lookup_connect_response_out(fd, descs, &event.ctrl, &done)) { usb_raw_ep0_stall(fd); continue; } response_data = NULL; response_length = event.ctrl.wLength; } if ((event.ctrl.bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD && event.ctrl.bRequest == USB_REQ_SET_CONFIGURATION) { rv = configure_device(fd); if (rv < 0) { return rv; } } struct usb_raw_ep_io_data response; response.inner.ep = 0; response.inner.flags = 0; if (response_length > sizeof(response.data)) response_length = 0; if (event.ctrl.wLength < response_length) response_length = event.ctrl.wLength; response.inner.length = response_length; if (response_data) memcpy(&response.data[0], response_data, response_length); else memset(&response.data[0], 0, response_length); if (event.ctrl.bRequestType & USB_DIR_IN) { rv = usb_raw_ep0_write(fd, (struct usb_raw_ep_io*)&response); } else { rv = usb_raw_ep0_read(fd, (struct usb_raw_ep_io*)&response); } if (rv < 0) { return rv; } } sleep_ms(200); return fd; } static volatile long syz_usb_connect(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { uint64_t speed = a0; uint64_t dev_len = a1; const char* dev = (const char*)a2; const struct vusb_connect_descriptors* descs = (const struct vusb_connect_descriptors*)a3; return syz_usb_connect_impl(speed, dev_len, dev, descs, &lookup_connect_response_out_generic); } static volatile long syz_usb_connect_ath9k(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { uint64_t speed = a0; uint64_t dev_len = a1; const char* dev = (const char*)a2; const struct vusb_connect_descriptors* descs = (const struct vusb_connect_descriptors*)a3; return syz_usb_connect_impl(speed, dev_len, dev, descs, &lookup_connect_response_out_ath9k); } static volatile long syz_usb_control_io(volatile long a0, volatile long a1, volatile long a2) { int fd = a0; const struct vusb_descriptors* descs = (const struct vusb_descriptors*)a1; const struct vusb_responses* resps = (const struct vusb_responses*)a2; struct usb_raw_control_event event; event.inner.type = 0; event.inner.length = USB_MAX_PACKET_SIZE; int rv = usb_raw_event_fetch(fd, (struct usb_raw_event*)&event); if (rv < 0) { return rv; } if (event.inner.type != USB_RAW_EVENT_CONTROL) { return -1; } char* response_data = NULL; uint32_t response_length = 0; if ((event.ctrl.bRequestType & USB_DIR_IN) && event.ctrl.wLength) { if (!lookup_control_response(descs, resps, &event.ctrl, &response_data, &response_length)) { usb_raw_ep0_stall(fd); return -1; } } else { if ((event.ctrl.bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD || event.ctrl.bRequest == USB_REQ_SET_INTERFACE) { int iface_num = event.ctrl.wIndex; int alt_set = event.ctrl.wValue; int iface_index = lookup_interface(fd, iface_num, alt_set); if (iface_index < 0) { } else { set_interface(fd, iface_index); } } response_length = event.ctrl.wLength; } struct usb_raw_ep_io_data response; response.inner.ep = 0; response.inner.flags = 0; if (response_length > sizeof(response.data)) response_length = 0; if (event.ctrl.wLength < response_length) response_length = event.ctrl.wLength; if ((event.ctrl.bRequestType & USB_DIR_IN) && !event.ctrl.wLength) { response_length = USB_MAX_PACKET_SIZE; } response.inner.length = response_length; if (response_data) memcpy(&response.data[0], response_data, response_length); else memset(&response.data[0], 0, response_length); if ((event.ctrl.bRequestType & USB_DIR_IN) && event.ctrl.wLength) { rv = usb_raw_ep0_write(fd, (struct usb_raw_ep_io*)&response); } else { rv = usb_raw_ep0_read(fd, (struct usb_raw_ep_io*)&response); } if (rv < 0) { return rv; } sleep_ms(200); return 0; } static volatile long syz_usb_ep_write(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { int fd = a0; uint8_t ep = a1; uint32_t len = a2; char* data = (char*)a3; int ep_handle = lookup_endpoint(fd, ep); if (ep_handle < 0) { return -1; } struct usb_raw_ep_io_data io_data; io_data.inner.ep = ep_handle; io_data.inner.flags = 0; if (len > sizeof(io_data.data)) len = sizeof(io_data.data); io_data.inner.length = len; memcpy(&io_data.data[0], data, len); int rv = usb_raw_ep_write(fd, (struct usb_raw_ep_io*)&io_data); if (rv < 0) { return rv; } sleep_ms(200); return 0; } static volatile long syz_usb_ep_read(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { int fd = a0; uint8_t ep = a1; uint32_t len = a2; char* data = (char*)a3; int ep_handle = lookup_endpoint(fd, ep); if (ep_handle < 0) { return -1; } struct usb_raw_ep_io_data io_data; io_data.inner.ep = ep_handle; io_data.inner.flags = 0; if (len > sizeof(io_data.data)) len = sizeof(io_data.data); io_data.inner.length = len; int rv = usb_raw_ep_read(fd, (struct usb_raw_ep_io*)&io_data); if (rv < 0) { return rv; } memcpy(&data[0], &io_data.data[0], io_data.inner.length); sleep_ms(200); return 0; } static volatile long syz_usb_disconnect(volatile long a0) { int fd = a0; int rv = close(fd); sleep_ms(200); return rv; } static long syz_open_dev(volatile long a0, volatile long a1, volatile long a2) { if (a0 == 0xc || a0 == 0xb) { char buf[128]; sprintf(buf, "/dev/%s/%d:%d", a0 == 0xc ? "char" : "block", (uint8_t)a1, (uint8_t)a2); return open(buf, O_RDWR, 0); } else { unsigned long nb = a1; char buf[1024]; char* hash; strncpy(buf, (char*)a0, sizeof(buf) - 1); buf[sizeof(buf) - 1] = 0; while ((hash = strchr(buf, '#'))) { *hash = '0' + (char)(nb % 10); nb /= 10; } return open(buf, a2 & ~O_CREAT, 0); } } static long syz_open_procfs(volatile long a0, volatile long a1) { char buf[128]; memset(buf, 0, sizeof(buf)); if (a0 == 0) { snprintf(buf, sizeof(buf), "/proc/self/%s", (char*)a1); } else if (a0 == -1) { snprintf(buf, sizeof(buf), "/proc/thread-self/%s", (char*)a1); } else { snprintf(buf, sizeof(buf), "/proc/self/task/%d/%s", (int)a0, (char*)a1); } int fd = open(buf, O_RDWR); if (fd == -1) fd = open(buf, O_RDONLY); return fd; } static long syz_open_pts(volatile long a0, volatile long a1) { int ptyno = 0; if (ioctl(a0, TIOCGPTN, &ptyno)) return -1; char buf[128]; sprintf(buf, "/dev/pts/%d", ptyno); return open(buf, a1, 0); } static long syz_init_net_socket(volatile long domain, volatile long type, volatile long proto) { int netns = open("/proc/self/ns/net", O_RDONLY); if (netns == -1) return netns; if (setns(kInitNetNsFd, 0)) return -1; int sock = syscall(__NR_socket, domain, type, proto); int err = errno; if (setns(netns, 0)) { exit(1); } close(netns); errno = err; return sock; } static long syz_socket_connect_nvme_tcp() { struct sockaddr_in nvme_local_address; int netns = open("/proc/self/ns/net", O_RDONLY); if (netns == -1) return netns; if (setns(kInitNetNsFd, 0)) return -1; int sock = syscall(__NR_socket, AF_INET, SOCK_STREAM, 0x0); int err = errno; if (setns(netns, 0)) { exit(1); } close(netns); errno = err; nvme_local_address.sin_family = AF_INET; nvme_local_address.sin_port = htobe16(4420); nvme_local_address.sin_addr.s_addr = htobe32(0x7f000001); err = syscall(__NR_connect, sock, &nvme_local_address, sizeof(nvme_local_address)); if (err != 0) { close(sock); return -1; } return sock; } #define BTPROTO_HCI 1 #define ACL_LINK 1 #define SCAN_PAGE 2 typedef struct { uint8_t b[6]; } __attribute__((packed)) bdaddr_t; #define HCI_COMMAND_PKT 1 #define HCI_EVENT_PKT 4 #define HCI_VENDOR_PKT 0xff struct hci_command_hdr { uint16_t opcode; uint8_t plen; } __attribute__((packed)); struct hci_event_hdr { uint8_t evt; uint8_t plen; } __attribute__((packed)); #define HCI_EV_CONN_COMPLETE 0x03 struct hci_ev_conn_complete { uint8_t status; uint16_t handle; bdaddr_t bdaddr; uint8_t link_type; uint8_t encr_mode; } __attribute__((packed)); #define HCI_EV_CONN_REQUEST 0x04 struct hci_ev_conn_request { bdaddr_t bdaddr; uint8_t dev_class[3]; uint8_t link_type; } __attribute__((packed)); #define HCI_EV_REMOTE_FEATURES 0x0b struct hci_ev_remote_features { uint8_t status; uint16_t handle; uint8_t features[8]; } __attribute__((packed)); #define HCI_EV_CMD_COMPLETE 0x0e struct hci_ev_cmd_complete { uint8_t ncmd; uint16_t opcode; } __attribute__((packed)); #define HCI_OP_WRITE_SCAN_ENABLE 0x0c1a #define HCI_OP_READ_BUFFER_SIZE 0x1005 struct hci_rp_read_buffer_size { uint8_t status; uint16_t acl_mtu; uint8_t sco_mtu; uint16_t acl_max_pkt; uint16_t sco_max_pkt; } __attribute__((packed)); #define HCI_OP_READ_BD_ADDR 0x1009 struct hci_rp_read_bd_addr { uint8_t status; bdaddr_t bdaddr; } __attribute__((packed)); #define HCI_EV_LE_META 0x3e struct hci_ev_le_meta { uint8_t subevent; } __attribute__((packed)); #define HCI_EV_LE_CONN_COMPLETE 0x01 struct hci_ev_le_conn_complete { uint8_t status; uint16_t handle; uint8_t role; uint8_t bdaddr_type; bdaddr_t bdaddr; uint16_t interval; uint16_t latency; uint16_t supervision_timeout; uint8_t clk_accurancy; } __attribute__((packed)); struct hci_dev_req { uint16_t dev_id; uint32_t dev_opt; }; struct vhci_vendor_pkt_request { uint8_t type; uint8_t opcode; } __attribute__((packed)); struct vhci_pkt { uint8_t type; union { struct { uint8_t opcode; uint16_t id; } __attribute__((packed)) vendor_pkt; struct hci_command_hdr command_hdr; }; } __attribute__((packed)); #define HCIDEVUP _IOW('H', 201, int) #define HCISETSCAN _IOW('H', 221, int) static int vhci_fd = -1; static void rfkill_unblock_all() { int fd = open("/dev/rfkill", O_WRONLY); if (fd < 0) exit(1); struct rfkill_event event = {0}; event.idx = 0; event.type = RFKILL_TYPE_ALL; event.op = RFKILL_OP_CHANGE_ALL; event.soft = 0; event.hard = 0; if (write(fd, &event, sizeof(event)) < 0) exit(1); close(fd); } static void hci_send_event_packet(int fd, uint8_t evt, void* data, size_t data_len) { struct iovec iv[3]; struct hci_event_hdr hdr; hdr.evt = evt; hdr.plen = data_len; uint8_t type = HCI_EVENT_PKT; iv[0].iov_base = &type; iv[0].iov_len = sizeof(type); iv[1].iov_base = &hdr; iv[1].iov_len = sizeof(hdr); iv[2].iov_base = data; iv[2].iov_len = data_len; if (writev(fd, iv, sizeof(iv) / sizeof(struct iovec)) < 0) exit(1); } static void hci_send_event_cmd_complete(int fd, uint16_t opcode, void* data, size_t data_len) { struct iovec iv[4]; struct hci_event_hdr hdr; hdr.evt = HCI_EV_CMD_COMPLETE; hdr.plen = sizeof(struct hci_ev_cmd_complete) + data_len; struct hci_ev_cmd_complete evt_hdr; evt_hdr.ncmd = 1; evt_hdr.opcode = opcode; uint8_t type = HCI_EVENT_PKT; iv[0].iov_base = &type; iv[0].iov_len = sizeof(type); iv[1].iov_base = &hdr; iv[1].iov_len = sizeof(hdr); iv[2].iov_base = &evt_hdr; iv[2].iov_len = sizeof(evt_hdr); iv[3].iov_base = data; iv[3].iov_len = data_len; if (writev(fd, iv, sizeof(iv) / sizeof(struct iovec)) < 0) exit(1); } static bool process_command_pkt(int fd, char* buf, ssize_t buf_size) { struct hci_command_hdr* hdr = (struct hci_command_hdr*)buf; if (buf_size < (ssize_t)sizeof(struct hci_command_hdr) || hdr->plen != buf_size - sizeof(struct hci_command_hdr)) exit(1); switch (hdr->opcode) { case HCI_OP_WRITE_SCAN_ENABLE: { uint8_t status = 0; hci_send_event_cmd_complete(fd, hdr->opcode, &status, sizeof(status)); return true; } case HCI_OP_READ_BD_ADDR: { struct hci_rp_read_bd_addr rp = {0}; rp.status = 0; memset(&rp.bdaddr, 0xaa, 6); hci_send_event_cmd_complete(fd, hdr->opcode, &rp, sizeof(rp)); return false; } case HCI_OP_READ_BUFFER_SIZE: { struct hci_rp_read_buffer_size rp = {0}; rp.status = 0; rp.acl_mtu = 1021; rp.sco_mtu = 96; rp.acl_max_pkt = 4; rp.sco_max_pkt = 6; hci_send_event_cmd_complete(fd, hdr->opcode, &rp, sizeof(rp)); return false; } } char dummy[0xf9] = {0}; hci_send_event_cmd_complete(fd, hdr->opcode, dummy, sizeof(dummy)); return false; } static void* event_thread(void* arg) { while (1) { char buf[1024] = {0}; ssize_t buf_size = read(vhci_fd, buf, sizeof(buf)); if (buf_size < 0) exit(1); if (buf_size > 0 && buf[0] == HCI_COMMAND_PKT) { if (process_command_pkt(vhci_fd, buf + 1, buf_size - 1)) break; } } return NULL; } #define HCI_HANDLE_1 200 #define HCI_HANDLE_2 201 #define HCI_PRIMARY 0 #define HCI_OP_RESET 0x0c03 static void initialize_vhci() { int hci_sock = socket(AF_BLUETOOTH, SOCK_RAW, BTPROTO_HCI); if (hci_sock < 0) exit(1); vhci_fd = open("/dev/vhci", O_RDWR); if (vhci_fd == -1) exit(1); const int kVhciFd = 202; if (dup2(vhci_fd, kVhciFd) < 0) exit(1); close(vhci_fd); vhci_fd = kVhciFd; struct vhci_vendor_pkt_request vendor_pkt_req = {HCI_VENDOR_PKT, HCI_PRIMARY}; if (write(vhci_fd, &vendor_pkt_req, sizeof(vendor_pkt_req)) != sizeof(vendor_pkt_req)) exit(1); struct vhci_pkt vhci_pkt; if (read(vhci_fd, &vhci_pkt, sizeof(vhci_pkt)) != sizeof(vhci_pkt)) exit(1); if (vhci_pkt.type == HCI_COMMAND_PKT && vhci_pkt.command_hdr.opcode == HCI_OP_RESET) { char response[1] = {0}; hci_send_event_cmd_complete(vhci_fd, HCI_OP_RESET, response, sizeof(response)); if (read(vhci_fd, &vhci_pkt, sizeof(vhci_pkt)) != sizeof(vhci_pkt)) exit(1); } if (vhci_pkt.type != HCI_VENDOR_PKT) exit(1); int dev_id = vhci_pkt.vendor_pkt.id; pthread_t th; if (pthread_create(&th, NULL, event_thread, NULL)) exit(1); int ret = ioctl(hci_sock, HCIDEVUP, dev_id); if (ret) { if (errno == ERFKILL) { rfkill_unblock_all(); ret = ioctl(hci_sock, HCIDEVUP, dev_id); } if (ret && errno != EALREADY) exit(1); } struct hci_dev_req dr = {0}; dr.dev_id = dev_id; dr.dev_opt = SCAN_PAGE; if (ioctl(hci_sock, HCISETSCAN, &dr)) exit(1); struct hci_ev_conn_request request; memset(&request, 0, sizeof(request)); memset(&request.bdaddr, 0xaa, 6); *(uint8_t*)&request.bdaddr.b[5] = 0x10; request.link_type = ACL_LINK; hci_send_event_packet(vhci_fd, HCI_EV_CONN_REQUEST, &request, sizeof(request)); struct hci_ev_conn_complete complete; memset(&complete, 0, sizeof(complete)); complete.status = 0; complete.handle = HCI_HANDLE_1; memset(&complete.bdaddr, 0xaa, 6); *(uint8_t*)&complete.bdaddr.b[5] = 0x10; complete.link_type = ACL_LINK; complete.encr_mode = 0; hci_send_event_packet(vhci_fd, HCI_EV_CONN_COMPLETE, &complete, sizeof(complete)); struct hci_ev_remote_features features; memset(&features, 0, sizeof(features)); features.status = 0; features.handle = HCI_HANDLE_1; hci_send_event_packet(vhci_fd, HCI_EV_REMOTE_FEATURES, &features, sizeof(features)); struct { struct hci_ev_le_meta le_meta; struct hci_ev_le_conn_complete le_conn; } le_conn; memset(&le_conn, 0, sizeof(le_conn)); le_conn.le_meta.subevent = HCI_EV_LE_CONN_COMPLETE; memset(&le_conn.le_conn.bdaddr, 0xaa, 6); *(uint8_t*)&le_conn.le_conn.bdaddr.b[5] = 0x11; le_conn.le_conn.role = 1; le_conn.le_conn.handle = HCI_HANDLE_2; hci_send_event_packet(vhci_fd, HCI_EV_LE_META, &le_conn, sizeof(le_conn)); pthread_join(th, NULL); close(hci_sock); } static long syz_emit_vhci(volatile long a0, volatile long a1) { if (vhci_fd < 0) return (uintptr_t)-1; char* data = (char*)a0; uint32_t length = a1; return write(vhci_fd, data, length); } static long syz_genetlink_get_family_id(volatile long name, volatile long sock_arg) { int fd = sock_arg; if (fd < 0) { fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC); if (fd == -1) { return -1; } } struct nlmsg nlmsg_tmp; int ret = netlink_query_family_id(&nlmsg_tmp, fd, (char*)name, false); if ((int)sock_arg < 0) close(fd); if (ret < 0) { return -1; } return ret; } //% This code is derived from puff.{c,h}, found in the zlib development. The //% original files come with the following copyright notice: //% Copyright (C) 2002-2013 Mark Adler, all rights reserved //% version 2.3, 21 Jan 2013 //% This software is provided 'as-is', without any express or implied //% warranty. In no event will the author be held liable for any damages //% arising from the use of this software. //% Permission is granted to anyone to use this software for any purpose, //% including commercial applications, and to alter it and redistribute it //% freely, subject to the following restrictions: //% 1. The origin of this software must not be misrepresented; you must not //% claim that you wrote the original software. If you use this software //% in a product, an acknowledgment in the product documentation would be //% appreciated but is not required. //% 2. Altered source versions must be plainly marked as such, and must not be //% misrepresented as being the original software. //% 3. This notice may not be removed or altered from any source distribution. //% Mark Adler madler@alumni.caltech.edu //% BEGIN CODE DERIVED FROM puff.{c,h} #define MAXBITS 15 #define MAXLCODES 286 #define MAXDCODES 30 #define MAXCODES (MAXLCODES + MAXDCODES) #define FIXLCODES 288 struct puff_state { unsigned char* out; unsigned long outlen; unsigned long outcnt; const unsigned char* in; unsigned long inlen; unsigned long incnt; int bitbuf; int bitcnt; jmp_buf env; }; static int puff_bits(struct puff_state* s, int need) { long val = s->bitbuf; while (s->bitcnt < need) { if (s->incnt == s->inlen) longjmp(s->env, 1); val |= (long)(s->in[s->incnt++]) << s->bitcnt; s->bitcnt += 8; } s->bitbuf = (int)(val >> need); s->bitcnt -= need; return (int)(val & ((1L << need) - 1)); } static int puff_stored(struct puff_state* s) { s->bitbuf = 0; s->bitcnt = 0; if (s->incnt + 4 > s->inlen) return 2; unsigned len = s->in[s->incnt++]; len |= s->in[s->incnt++] << 8; if (s->in[s->incnt++] != (~len & 0xff) || s->in[s->incnt++] != ((~len >> 8) & 0xff)) return -2; if (s->incnt + len > s->inlen) return 2; if (s->outcnt + len > s->outlen) return 1; for (; len--; s->outcnt++, s->incnt++) { if (s->in[s->incnt]) s->out[s->outcnt] = s->in[s->incnt]; } return 0; } struct puff_huffman { short* count; short* symbol; }; static int puff_decode(struct puff_state* s, const struct puff_huffman* h) { int first = 0; int index = 0; int bitbuf = s->bitbuf; int left = s->bitcnt; int code = first = index = 0; int len = 1; short* next = h->count + 1; while (1) { while (left--) { code |= bitbuf & 1; bitbuf >>= 1; int count = *next++; if (code - count < first) { s->bitbuf = bitbuf; s->bitcnt = (s->bitcnt - len) & 7; return h->symbol[index + (code - first)]; } index += count; first += count; first <<= 1; code <<= 1; len++; } left = (MAXBITS + 1) - len; if (left == 0) break; if (s->incnt == s->inlen) longjmp(s->env, 1); bitbuf = s->in[s->incnt++]; if (left > 8) left = 8; } return -10; } static int puff_construct(struct puff_huffman* h, const short* length, int n) { int len; for (len = 0; len <= MAXBITS; len++) h->count[len] = 0; int symbol; for (symbol = 0; symbol < n; symbol++) (h->count[length[symbol]])++; if (h->count[0] == n) return 0; int left = 1; for (len = 1; len <= MAXBITS; len++) { left <<= 1; left -= h->count[len]; if (left < 0) return left; } short offs[MAXBITS + 1]; offs[1] = 0; for (len = 1; len < MAXBITS; len++) offs[len + 1] = offs[len] + h->count[len]; for (symbol = 0; symbol < n; symbol++) if (length[symbol] != 0) h->symbol[offs[length[symbol]]++] = symbol; return left; } static int puff_codes(struct puff_state* s, const struct puff_huffman* lencode, const struct puff_huffman* distcode) { static const short lens[29] = { 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31, 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258}; static const short lext[29] = { 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0}; static const short dists[30] = { 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193, 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145, 8193, 12289, 16385, 24577}; static const short dext[30] = { 0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13}; int symbol; do { symbol = puff_decode(s, lencode); if (symbol < 0) return symbol; if (symbol < 256) { if (s->outcnt == s->outlen) return 1; if (symbol) s->out[s->outcnt] = symbol; s->outcnt++; } else if (symbol > 256) { symbol -= 257; if (symbol >= 29) return -10; int len = lens[symbol] + puff_bits(s, lext[symbol]); symbol = puff_decode(s, distcode); if (symbol < 0) return symbol; unsigned dist = dists[symbol] + puff_bits(s, dext[symbol]); if (dist > s->outcnt) return -11; if (s->outcnt + len > s->outlen) return 1; while (len--) { if (dist <= s->outcnt && s->out[s->outcnt - dist]) s->out[s->outcnt] = s->out[s->outcnt - dist]; s->outcnt++; } } } while (symbol != 256); return 0; } static int puff_fixed(struct puff_state* s) { static int virgin = 1; static short lencnt[MAXBITS + 1], lensym[FIXLCODES]; static short distcnt[MAXBITS + 1], distsym[MAXDCODES]; static struct puff_huffman lencode, distcode; if (virgin) { lencode.count = lencnt; lencode.symbol = lensym; distcode.count = distcnt; distcode.symbol = distsym; short lengths[FIXLCODES]; int symbol; for (symbol = 0; symbol < 144; symbol++) lengths[symbol] = 8; for (; symbol < 256; symbol++) lengths[symbol] = 9; for (; symbol < 280; symbol++) lengths[symbol] = 7; for (; symbol < FIXLCODES; symbol++) lengths[symbol] = 8; puff_construct(&lencode, lengths, FIXLCODES); for (symbol = 0; symbol < MAXDCODES; symbol++) lengths[symbol] = 5; puff_construct(&distcode, lengths, MAXDCODES); virgin = 0; } return puff_codes(s, &lencode, &distcode); } static int puff_dynamic(struct puff_state* s) { static const short order[19] = {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15}; int nlen = puff_bits(s, 5) + 257; int ndist = puff_bits(s, 5) + 1; int ncode = puff_bits(s, 4) + 4; if (nlen > MAXLCODES || ndist > MAXDCODES) return -3; short lengths[MAXCODES]; int index; for (index = 0; index < ncode; index++) lengths[order[index]] = puff_bits(s, 3); for (; index < 19; index++) lengths[order[index]] = 0; short lencnt[MAXBITS + 1], lensym[MAXLCODES]; struct puff_huffman lencode = {lencnt, lensym}; int err = puff_construct(&lencode, lengths, 19); if (err != 0) return -4; index = 0; while (index < nlen + ndist) { int symbol; int len; symbol = puff_decode(s, &lencode); if (symbol < 0) return symbol; if (symbol < 16) lengths[index++] = symbol; else { len = 0; if (symbol == 16) { if (index == 0) return -5; len = lengths[index - 1]; symbol = 3 + puff_bits(s, 2); } else if (symbol == 17) symbol = 3 + puff_bits(s, 3); else symbol = 11 + puff_bits(s, 7); if (index + symbol > nlen + ndist) return -6; while (symbol--) lengths[index++] = len; } } if (lengths[256] == 0) return -9; err = puff_construct(&lencode, lengths, nlen); if (err && (err < 0 || nlen != lencode.count[0] + lencode.count[1])) return -7; short distcnt[MAXBITS + 1], distsym[MAXDCODES]; struct puff_huffman distcode = {distcnt, distsym}; err = puff_construct(&distcode, lengths + nlen, ndist); if (err && (err < 0 || ndist != distcode.count[0] + distcode.count[1])) return -8; return puff_codes(s, &lencode, &distcode); } static int puff( unsigned char* dest, unsigned long* destlen, const unsigned char* source, unsigned long sourcelen) { struct puff_state s = { .out = dest, .outlen = *destlen, .outcnt = 0, .in = source, .inlen = sourcelen, .incnt = 0, .bitbuf = 0, .bitcnt = 0, }; int err; if (setjmp(s.env) != 0) err = 2; else { int last; do { last = puff_bits(&s, 1); int type = puff_bits(&s, 2); err = type == 0 ? puff_stored(&s) : (type == 1 ? puff_fixed(&s) : (type == 2 ? puff_dynamic(&s) : -1)); if (err != 0) break; } while (!last); } *destlen = s.outcnt; return err; } //% END CODE DERIVED FROM puff.{c,h} #define ZLIB_HEADER_WIDTH 2 static int puff_zlib_to_file(const unsigned char* source, unsigned long sourcelen, int dest_fd) { if (sourcelen < ZLIB_HEADER_WIDTH) return 0; source += ZLIB_HEADER_WIDTH; sourcelen -= ZLIB_HEADER_WIDTH; const unsigned long max_destlen = 132 << 20; void* ret = mmap(0, max_destlen, PROT_WRITE | PROT_READ, MAP_PRIVATE | MAP_ANON, -1, 0); if (ret == MAP_FAILED) return -1; unsigned char* dest = (unsigned char*)ret; unsigned long destlen = max_destlen; int err = puff(dest, &destlen, source, sourcelen); if (err) { munmap(dest, max_destlen); errno = -err; return -1; } if (write(dest_fd, dest, destlen) != (ssize_t)destlen) { munmap(dest, max_destlen); return -1; } return munmap(dest, max_destlen); } static int setup_loop_device(unsigned char* data, unsigned long size, const char* loopname, int* loopfd_p) { int err = 0, loopfd = -1; int memfd = syscall(__NR_memfd_create, "syzkaller", 0); if (memfd == -1) { err = errno; goto error; } if (puff_zlib_to_file(data, size, memfd)) { err = errno; goto error_close_memfd; } loopfd = open(loopname, O_RDWR); if (loopfd == -1) { err = errno; goto error_close_memfd; } if (ioctl(loopfd, LOOP_SET_FD, memfd)) { if (errno != EBUSY) { err = errno; goto error_close_loop; } ioctl(loopfd, LOOP_CLR_FD, 0); usleep(1000); if (ioctl(loopfd, LOOP_SET_FD, memfd)) { err = errno; goto error_close_loop; } } close(memfd); *loopfd_p = loopfd; return 0; error_close_loop: close(loopfd); error_close_memfd: close(memfd); error: errno = err; return -1; } static void reset_loop_device(const char* loopname) { int loopfd = open(loopname, O_RDWR); if (loopfd == -1) { return; } if (ioctl(loopfd, LOOP_CLR_FD, 0)) { } close(loopfd); } static long syz_mount_image( volatile long fsarg, volatile long dir, volatile long flags, volatile long optsarg, volatile long change_dir, volatile unsigned long size, volatile long image) { unsigned char* data = (unsigned char*)image; int res = -1, err = 0, need_loop_device = !!size; char* mount_opts = (char*)optsarg; char* target = (char*)dir; char* fs = (char*)fsarg; char* source = NULL; char loopname[64]; if (need_loop_device) { int loopfd; memset(loopname, 0, sizeof(loopname)); snprintf(loopname, sizeof(loopname), "/dev/loop%llu", procid); if (setup_loop_device(data, size, loopname, &loopfd) == -1) return -1; close(loopfd); source = loopname; } mkdir(target, 0777); char opts[256]; memset(opts, 0, sizeof(opts)); if (strlen(mount_opts) > (sizeof(opts) - 32)) { } strncpy(opts, mount_opts, sizeof(opts) - 32); if (strcmp(fs, "iso9660") == 0) { flags |= MS_RDONLY; } else if (strncmp(fs, "ext", 3) == 0) { bool has_remount_ro = false; char* remount_ro_start = strstr(opts, "errors=remount-ro"); if (remount_ro_start != NULL) { char after = *(remount_ro_start + strlen("errors=remount-ro")); char before = remount_ro_start == opts ? '\0' : *(remount_ro_start - 1); has_remount_ro = ((before == '\0' || before == ',') && (after == '\0' || after == ',')); } if (strstr(opts, "errors=panic") || !has_remount_ro) strcat(opts, ",errors=continue"); } else if (strcmp(fs, "xfs") == 0) { strcat(opts, ",nouuid"); } else if (strncmp(fs, "gfs2", 4) == 0 && (strstr(opts, "errors=panic") || strstr(opts, "debug"))) { strcat(opts, ",errors=withdraw"); } res = mount(source, target, fs, flags, opts); if (res == -1) { err = errno; goto error_clear_loop; } res = open(target, O_RDONLY | O_DIRECTORY); if (res == -1) { err = errno; goto error_clear_loop; } if (change_dir) { res = chdir(target); if (res == -1) { err = errno; } } error_clear_loop: if (need_loop_device) reset_loop_device(loopname); errno = err; return res; } #define noinline __attribute__((noinline)) #define __no_stack_protector #define __addrspace_guest #define __optnone #define GUEST_CODE __attribute__((section("guest"))) __no_stack_protector __addrspace_guest extern char *__start_guest, *__stop_guest; #define X86_ADDR_TEXT 0x0000 #define X86_ADDR_PD_IOAPIC 0x0000 #define X86_ADDR_GDT 0x1000 #define X86_ADDR_LDT 0x1800 #define X86_ADDR_PML4 0x2000 #define X86_ADDR_PDP 0x3000 #define X86_ADDR_PD 0x4000 #define X86_ADDR_STACK0 0x0f80 #define X86_ADDR_VAR_HLT 0x2800 #define X86_ADDR_VAR_SYSRET 0x2808 #define X86_ADDR_VAR_SYSEXIT 0x2810 #define X86_ADDR_VAR_IDT 0x3800 #define X86_ADDR_VAR_TSS64 0x3a00 #define X86_ADDR_VAR_TSS64_CPL3 0x3c00 #define X86_ADDR_VAR_TSS16 0x3d00 #define X86_ADDR_VAR_TSS16_2 0x3e00 #define X86_ADDR_VAR_TSS16_CPL3 0x3f00 #define X86_ADDR_VAR_TSS32 0x4800 #define X86_ADDR_VAR_TSS32_2 0x4a00 #define X86_ADDR_VAR_TSS32_CPL3 0x4c00 #define X86_ADDR_VAR_TSS32_VM86 0x4e00 #define X86_ADDR_VAR_VMXON_PTR 0x5f00 #define X86_ADDR_VAR_VMCS_PTR 0x5f08 #define X86_ADDR_VAR_VMEXIT_PTR 0x5f10 #define X86_ADDR_VAR_VMWRITE_FLD 0x5f18 #define X86_ADDR_VAR_VMWRITE_VAL 0x5f20 #define X86_ADDR_VAR_VMXON 0x6000 #define X86_ADDR_VAR_VMCS 0x7000 #define X86_ADDR_VAR_VMEXIT_CODE 0x9000 #define X86_ADDR_VAR_USER_CODE 0x9100 #define X86_ADDR_VAR_USER_CODE2 0x9120 #define X86_SYZOS_ADDR_ZERO 0x0 #define X86_SYZOS_ADDR_GDT 0x1000 #define X86_SYZOS_ADDR_PML4 0x2000 #define X86_SYZOS_ADDR_PDP 0x3000 #define X86_SYZOS_ADDR_PT_POOL 0x5000 #define X86_SYZOS_ADDR_VAR_IDT 0x25000 #define X86_SYZOS_ADDR_VAR_TSS 0x26000 #define X86_SYZOS_ADDR_SMRAM 0x30000 #define X86_SYZOS_ADDR_EXIT 0x40000 #define X86_SYZOS_ADDR_UEXIT (X86_SYZOS_ADDR_EXIT + 256) #define X86_SYZOS_ADDR_DIRTY_PAGES 0x41000 #define X86_SYZOS_ADDR_USER_CODE 0x50000 #define SYZOS_ADDR_EXECUTOR_CODE 0x54000 #define X86_SYZOS_ADDR_SCRATCH_CODE 0x58000 #define X86_SYZOS_ADDR_STACK_BOTTOM 0x60000 #define X86_SYZOS_ADDR_STACK0 0x60f80 #define X86_SYZOS_PER_VCPU_REGIONS_BASE 0x70000 #define X86_SYZOS_L1_VCPU_REGION_SIZE 0x40000 #define X86_SYZOS_L1_VCPU_OFFSET_VM_ARCH_SPECIFIC 0x0000 #define X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA 0x1000 #define X86_SYZOS_L2_VM_REGION_SIZE 0x8000 #define X86_SYZOS_L2_VM_OFFSET_VMCS_VMCB 0x0000 #define X86_SYZOS_L2_VM_OFFSET_VM_STACK 0x1000 #define X86_SYZOS_L2_VM_OFFSET_VM_CODE 0x2000 #define X86_SYZOS_L2_VM_OFFSET_VM_PGTABLE 0x3000 #define X86_SYZOS_L2_VM_OFFSET_MSR_BITMAP 0x7000 #define X86_SYZOS_ADDR_UNUSED 0x200000 #define X86_SYZOS_ADDR_IOAPIC 0xfec00000 #define X86_SYZOS_ADDR_VMCS_VMCB(cpu,vm) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA + (vm) * X86_SYZOS_L2_VM_REGION_SIZE + X86_SYZOS_L2_VM_OFFSET_VMCS_VMCB) #define X86_SYZOS_ADDR_VM_CODE(cpu,vm) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA + (vm) * X86_SYZOS_L2_VM_REGION_SIZE + X86_SYZOS_L2_VM_OFFSET_VM_CODE) #define X86_SYZOS_ADDR_VM_STACK(cpu,vm) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA + (vm) * X86_SYZOS_L2_VM_REGION_SIZE + X86_SYZOS_L2_VM_OFFSET_VM_STACK) #define X86_SYZOS_ADDR_VM_PGTABLE(cpu,vm) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA + (vm) * X86_SYZOS_L2_VM_REGION_SIZE + X86_SYZOS_L2_VM_OFFSET_VM_PGTABLE) #define X86_SYZOS_ADDR_MSR_BITMAP(cpu,vm) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA + (vm) * X86_SYZOS_L2_VM_REGION_SIZE + X86_SYZOS_L2_VM_OFFSET_MSR_BITMAP) #define X86_SYZOS_ADDR_VM_ARCH_SPECIFIC(cpu) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_VM_ARCH_SPECIFIC) #define X86_SYZOS_SEL_CODE 0x8 #define X86_SYZOS_SEL_DATA 0x10 #define X86_SYZOS_SEL_TSS64 0x18 #define X86_CR0_PE 1ULL #define X86_CR0_MP (1ULL << 1) #define X86_CR0_EM (1ULL << 2) #define X86_CR0_TS (1ULL << 3) #define X86_CR0_ET (1ULL << 4) #define X86_CR0_NE (1ULL << 5) #define X86_CR0_WP (1ULL << 16) #define X86_CR0_AM (1ULL << 18) #define X86_CR0_NW (1ULL << 29) #define X86_CR0_CD (1ULL << 30) #define X86_CR0_PG (1ULL << 31) #define X86_CR4_VME 1ULL #define X86_CR4_PVI (1ULL << 1) #define X86_CR4_TSD (1ULL << 2) #define X86_CR4_DE (1ULL << 3) #define X86_CR4_PSE (1ULL << 4) #define X86_CR4_PAE (1ULL << 5) #define X86_CR4_MCE (1ULL << 6) #define X86_CR4_PGE (1ULL << 7) #define X86_CR4_PCE (1ULL << 8) #define X86_CR4_OSFXSR (1ULL << 8) #define X86_CR4_OSXMMEXCPT (1ULL << 10) #define X86_CR4_UMIP (1ULL << 11) #define X86_CR4_VMXE (1ULL << 13) #define X86_CR4_SMXE (1ULL << 14) #define X86_CR4_FSGSBASE (1ULL << 16) #define X86_CR4_PCIDE (1ULL << 17) #define X86_CR4_OSXSAVE (1ULL << 18) #define X86_CR4_SMEP (1ULL << 20) #define X86_CR4_SMAP (1ULL << 21) #define X86_CR4_PKE (1ULL << 22) #define X86_EFER_SCE 1ULL #define X86_EFER_LME (1ULL << 8) #define X86_EFER_LMA (1ULL << 10) #define X86_EFER_NXE (1ULL << 11) #define X86_EFER_SVME (1ULL << 12) #define X86_EFER_LMSLE (1ULL << 13) #define X86_EFER_FFXSR (1ULL << 14) #define X86_EFER_TCE (1ULL << 15) #define X86_PDE32_PRESENT 1UL #define X86_PDE32_RW (1UL << 1) #define X86_PDE32_USER (1UL << 2) #define X86_PDE32_PS (1UL << 7) #define X86_PDE64_PRESENT 1 #define X86_PDE64_RW (1ULL << 1) #define X86_PDE64_USER (1ULL << 2) #define X86_PDE64_ACCESSED (1ULL << 5) #define X86_PDE64_DIRTY (1ULL << 6) #define X86_PDE64_PS (1ULL << 7) #define X86_PDE64_G (1ULL << 8) #define EPT_MEMTYPE_WB (6ULL << 3) #define EPT_ACCESSED (1ULL << 8) #define EPT_DIRTY (1ULL << 9) #define X86_SEL_LDT (1 << 3) #define X86_SEL_CS16 (2 << 3) #define X86_SEL_DS16 (3 << 3) #define X86_SEL_CS16_CPL3 ((4 << 3) + 3) #define X86_SEL_DS16_CPL3 ((5 << 3) + 3) #define X86_SEL_CS32 (6 << 3) #define X86_SEL_DS32 (7 << 3) #define X86_SEL_CS32_CPL3 ((8 << 3) + 3) #define X86_SEL_DS32_CPL3 ((9 << 3) + 3) #define X86_SEL_CS64 (10 << 3) #define X86_SEL_DS64 (11 << 3) #define X86_SEL_CS64_CPL3 ((12 << 3) + 3) #define X86_SEL_DS64_CPL3 ((13 << 3) + 3) #define X86_SEL_CGATE16 (14 << 3) #define X86_SEL_TGATE16 (15 << 3) #define X86_SEL_CGATE32 (16 << 3) #define X86_SEL_TGATE32 (17 << 3) #define X86_SEL_CGATE64 (18 << 3) #define X86_SEL_CGATE64_HI (19 << 3) #define X86_SEL_TSS16 (20 << 3) #define X86_SEL_TSS16_2 (21 << 3) #define X86_SEL_TSS16_CPL3 ((22 << 3) + 3) #define X86_SEL_TSS32 (23 << 3) #define X86_SEL_TSS32_2 (24 << 3) #define X86_SEL_TSS32_CPL3 ((25 << 3) + 3) #define X86_SEL_TSS32_VM86 (26 << 3) #define X86_SEL_TSS64 (27 << 3) #define X86_SEL_TSS64_HI (28 << 3) #define X86_SEL_TSS64_CPL3 ((29 << 3) + 3) #define X86_SEL_TSS64_CPL3_HI (30 << 3) #define X86_MSR_IA32_FEATURE_CONTROL 0x3a #define X86_MSR_IA32_VMX_BASIC 0x480 #define X86_MSR_IA32_SMBASE 0x9e #define X86_MSR_IA32_SYSENTER_CS 0x174 #define X86_MSR_IA32_SYSENTER_ESP 0x175 #define X86_MSR_IA32_SYSENTER_EIP 0x176 #define X86_MSR_IA32_CR_PAT 0x277 #define X86_MSR_CORE_PERF_GLOBAL_CTRL 0x38f #define X86_MSR_IA32_VMX_TRUE_PINBASED_CTLS 0x48d #define X86_MSR_IA32_VMX_TRUE_PROCBASED_CTLS 0x48e #define X86_MSR_IA32_VMX_TRUE_EXIT_CTLS 0x48f #define X86_MSR_IA32_VMX_TRUE_ENTRY_CTLS 0x490 #define X86_MSR_IA32_EFER 0xc0000080 #define X86_MSR_IA32_STAR 0xC0000081 #define X86_MSR_IA32_LSTAR 0xC0000082 #define X86_MSR_FS_BASE 0xc0000100 #define X86_MSR_GS_BASE 0xc0000101 #define X86_MSR_VM_HSAVE_PA 0xc0010117 #define X86_MSR_IA32_VMX_PROCBASED_CTLS2 0x48B #define RFLAGS_1_BIT (1ULL << 1) #define CPU_BASED_HLT_EXITING (1U << 7) #define CPU_BASED_RDTSC_EXITING (1U << 12) #define AR_TSS_AVAILABLE 0x0089 #define SVM_ATTR_LDTR_UNUSABLE 0x0000 #define VMX_AR_TSS_BUSY 0x008b #define VMX_AR_TSS_AVAILABLE 0x0089 #define VMX_AR_LDTR_UNUSABLE 0x10000 #define VM_ENTRY_IA32E_MODE (1U << 9) #define SECONDARY_EXEC_ENABLE_EPT (1U << 1) #define SECONDARY_EXEC_ENABLE_RDTSCP (1U << 3) #define VM_EXIT_HOST_ADDR_SPACE_SIZE (1U << 9) #define CPU_BASED_ACTIVATE_SECONDARY_CONTROLS (1U << 31) #define VMX_ACCESS_RIGHTS_P (1 << 7) #define VMX_ACCESS_RIGHTS_S (1 << 4) #define VMX_ACCESS_RIGHTS_TYPE_A (1 << 0) #define VMX_ACCESS_RIGHTS_TYPE_RW (1 << 1) #define VMX_ACCESS_RIGHTS_TYPE_E (1 << 3) #define VMX_ACCESS_RIGHTS_G (1 << 15) #define VMX_ACCESS_RIGHTS_DB (1 << 14) #define VMX_ACCESS_RIGHTS_L (1 << 13) #define VMX_AR_64BIT_DATA_STACK (VMX_ACCESS_RIGHTS_P | VMX_ACCESS_RIGHTS_S | VMX_ACCESS_RIGHTS_TYPE_RW | VMX_ACCESS_RIGHTS_TYPE_A | VMX_ACCESS_RIGHTS_G | VMX_ACCESS_RIGHTS_DB) #define VMX_AR_64BIT_CODE (VMX_ACCESS_RIGHTS_P | VMX_ACCESS_RIGHTS_S | VMX_ACCESS_RIGHTS_TYPE_E | VMX_ACCESS_RIGHTS_TYPE_RW | VMX_ACCESS_RIGHTS_TYPE_A | VMX_ACCESS_RIGHTS_G | VMX_ACCESS_RIGHTS_L) #define VMCS_VIRTUAL_PROCESSOR_ID 0x00000000 #define VMCS_POSTED_INTR_NV 0x00000002 #define VMCS_MSR_BITMAP 0x00002004 #define VMCS_VMREAD_BITMAP 0x00002006 #define VMCS_VMWRITE_BITMAP 0x00002008 #define VMCS_EPT_POINTER 0x0000201a #define VMCS_LINK_POINTER 0x00002800 #define VMCS_PIN_BASED_VM_EXEC_CONTROL 0x00004000 #define VMCS_CPU_BASED_VM_EXEC_CONTROL 0x00004002 #define VMCS_EXCEPTION_BITMAP 0x00004004 #define VMCS_PAGE_FAULT_ERROR_CODE_MASK 0x00004006 #define VMCS_PAGE_FAULT_ERROR_CODE_MATCH 0x00004008 #define VMCS_CR3_TARGET_COUNT 0x0000400a #define VMCS_VM_EXIT_CONTROLS 0x0000400c #define VMCS_VM_EXIT_MSR_STORE_COUNT 0x0000400e #define VMCS_VM_EXIT_MSR_LOAD_COUNT 0x00004010 #define VMCS_VM_ENTRY_CONTROLS 0x00004012 #define VMCS_VM_ENTRY_MSR_LOAD_COUNT 0x00004014 #define VMCS_VM_ENTRY_INTR_INFO_FIELD 0x00004016 #define VMCS_TPR_THRESHOLD 0x0000401c #define VMCS_SECONDARY_VM_EXEC_CONTROL 0x0000401e #define VMCS_VM_INSTRUCTION_ERROR 0x00004400 #define VMCS_VM_EXIT_REASON 0x00004402 #define VMCS_VMX_PREEMPTION_TIMER_VALUE 0x0000482e #define VMCS_CR0_GUEST_HOST_MASK 0x00006000 #define VMCS_CR4_GUEST_HOST_MASK 0x00006002 #define VMCS_CR0_READ_SHADOW 0x00006004 #define VMCS_CR4_READ_SHADOW 0x00006006 #define VMCS_HOST_ES_SELECTOR 0x00000c00 #define VMCS_HOST_CS_SELECTOR 0x00000c02 #define VMCS_HOST_SS_SELECTOR 0x00000c04 #define VMCS_HOST_DS_SELECTOR 0x00000c06 #define VMCS_HOST_FS_SELECTOR 0x00000c08 #define VMCS_HOST_GS_SELECTOR 0x00000c0a #define VMCS_HOST_TR_SELECTOR 0x00000c0c #define VMCS_HOST_IA32_PAT 0x00002c00 #define VMCS_HOST_IA32_EFER 0x00002c02 #define VMCS_HOST_IA32_PERF_GLOBAL_CTRL 0x00002c04 #define VMCS_HOST_IA32_SYSENTER_CS 0x00004c00 #define VMCS_HOST_CR0 0x00006c00 #define VMCS_HOST_CR3 0x00006c02 #define VMCS_HOST_CR4 0x00006c04 #define VMCS_HOST_FS_BASE 0x00006c06 #define VMCS_HOST_GS_BASE 0x00006c08 #define VMCS_HOST_TR_BASE 0x00006c0a #define VMCS_HOST_GDTR_BASE 0x00006c0c #define VMCS_HOST_IDTR_BASE 0x00006c0e #define VMCS_HOST_IA32_SYSENTER_ESP 0x00006c10 #define VMCS_HOST_IA32_SYSENTER_EIP 0x00006c12 #define VMCS_HOST_RSP 0x00006c14 #define VMCS_HOST_RIP 0x00006c16 #define VMCS_GUEST_INTR_STATUS 0x00000810 #define VMCS_GUEST_PML_INDEX 0x00000812 #define VMCS_GUEST_IA32_DEBUGCTL 0x00002802 #define VMCS_GUEST_IA32_PAT 0x00002804 #define VMCS_GUEST_IA32_EFER 0x00002806 #define VMCS_GUEST_IA32_PERF_GLOBAL_CTRL 0x00002808 #define VMCS_GUEST_ES_SELECTOR 0x00000800 #define VMCS_GUEST_CS_SELECTOR 0x00000802 #define VMCS_GUEST_SS_SELECTOR 0x00000804 #define VMCS_GUEST_DS_SELECTOR 0x00000806 #define VMCS_GUEST_FS_SELECTOR 0x00000808 #define VMCS_GUEST_GS_SELECTOR 0x0000080a #define VMCS_GUEST_LDTR_SELECTOR 0x0000080c #define VMCS_GUEST_TR_SELECTOR 0x0000080e #define VMCS_GUEST_ES_LIMIT 0x00004800 #define VMCS_GUEST_CS_LIMIT 0x00004802 #define VMCS_GUEST_SS_LIMIT 0x00004804 #define VMCS_GUEST_DS_LIMIT 0x00004806 #define VMCS_GUEST_FS_LIMIT 0x00004808 #define VMCS_GUEST_GS_LIMIT 0x0000480a #define VMCS_GUEST_LDTR_LIMIT 0x0000480c #define VMCS_GUEST_TR_LIMIT 0x0000480e #define VMCS_GUEST_GDTR_LIMIT 0x00004810 #define VMCS_GUEST_IDTR_LIMIT 0x00004812 #define VMCS_GUEST_ES_ACCESS_RIGHTS 0x00004814 #define VMCS_GUEST_CS_ACCESS_RIGHTS 0x00004816 #define VMCS_GUEST_SS_ACCESS_RIGHTS 0x00004818 #define VMCS_GUEST_DS_ACCESS_RIGHTS 0x0000481a #define VMCS_GUEST_FS_ACCESS_RIGHTS 0x0000481c #define VMCS_GUEST_GS_ACCESS_RIGHTS 0x0000481e #define VMCS_GUEST_LDTR_ACCESS_RIGHTS 0x00004820 #define VMCS_GUEST_TR_ACCESS_RIGHTS 0x00004822 #define VMCS_GUEST_ACTIVITY_STATE 0x00004824 #define VMCS_GUEST_INTERRUPTIBILITY_INFO 0x00004826 #define VMCS_GUEST_SYSENTER_CS 0x0000482a #define VMCS_GUEST_CR0 0x00006800 #define VMCS_GUEST_CR3 0x00006802 #define VMCS_GUEST_CR4 0x00006804 #define VMCS_GUEST_ES_BASE 0x00006806 #define VMCS_GUEST_CS_BASE 0x00006808 #define VMCS_GUEST_SS_BASE 0x0000680a #define VMCS_GUEST_DS_BASE 0x0000680c #define VMCS_GUEST_FS_BASE 0x0000680e #define VMCS_GUEST_GS_BASE 0x00006810 #define VMCS_GUEST_LDTR_BASE 0x00006812 #define VMCS_GUEST_TR_BASE 0x00006814 #define VMCS_GUEST_GDTR_BASE 0x00006816 #define VMCS_GUEST_IDTR_BASE 0x00006818 #define VMCS_GUEST_DR7 0x0000681a #define VMCS_GUEST_RSP 0x0000681c #define VMCS_GUEST_RIP 0x0000681e #define VMCS_GUEST_RFLAGS 0x00006820 #define VMCS_GUEST_PENDING_DBG_EXCEPTIONS 0x00006822 #define VMCS_GUEST_SYSENTER_ESP 0x00006824 #define VMCS_GUEST_SYSENTER_EIP 0x00006826 #define VMCB_CTRL_INTERCEPT_VEC3 0x0c #define VMCB_CTRL_INTERCEPT_VEC3_ALL (0xffffffff) #define VMCB_CTRL_INTERCEPT_VEC4 0x10 #define VMCB_CTRL_INTERCEPT_VEC4_ALL (0x3ff) #define VMCB_CTRL_ASID 0x058 #define VMCB_EXIT_CODE 0x070 #define VMCB_CTRL_NP_ENABLE 0x090 #define VMCB_CTRL_NPT_ENABLE_BIT 0 #define VMCB_CTRL_N_CR3 0x0b0 #define VMCB_GUEST_ES_SEL 0x400 #define VMCB_GUEST_ES_ATTR 0x402 #define VMCB_GUEST_ES_LIM 0x404 #define VMCB_GUEST_ES_BASE 0x408 #define VMCB_GUEST_CS_SEL 0x410 #define VMCB_GUEST_CS_ATTR 0x412 #define VMCB_GUEST_CS_LIM 0x414 #define VMCB_GUEST_CS_BASE 0x418 #define VMCB_GUEST_SS_SEL 0x420 #define VMCB_GUEST_SS_ATTR 0x422 #define VMCB_GUEST_SS_LIM 0x424 #define VMCB_GUEST_SS_BASE 0x428 #define VMCB_GUEST_DS_SEL 0x430 #define VMCB_GUEST_DS_ATTR 0x432 #define VMCB_GUEST_DS_LIM 0x434 #define VMCB_GUEST_DS_BASE 0x438 #define VMCB_GUEST_FS_SEL 0x440 #define VMCB_GUEST_FS_ATTR 0x442 #define VMCB_GUEST_FS_LIM 0x444 #define VMCB_GUEST_FS_BASE 0x448 #define VMCB_GUEST_GS_SEL 0x450 #define VMCB_GUEST_GS_ATTR 0x452 #define VMCB_GUEST_GS_LIM 0x454 #define VMCB_GUEST_GS_BASE 0x458 #define VMCB_GUEST_IDTR_SEL 0x480 #define VMCB_GUEST_IDTR_ATTR 0x482 #define VMCB_GUEST_IDTR_LIM 0x484 #define VMCB_GUEST_IDTR_BASE 0x488 #define VMCB_GUEST_GDTR_SEL 0x460 #define VMCB_GUEST_GDTR_ATTR 0x462 #define VMCB_GUEST_GDTR_LIM 0x464 #define VMCB_GUEST_GDTR_BASE 0x468 #define VMCB_GUEST_LDTR_SEL 0x470 #define VMCB_GUEST_LDTR_ATTR 0x472 #define VMCB_GUEST_LDTR_LIM 0x474 #define VMCB_GUEST_LDTR_BASE 0x478 #define VMCB_GUEST_TR_SEL 0x490 #define VMCB_GUEST_TR_ATTR 0x492 #define VMCB_GUEST_TR_LIM 0x494 #define VMCB_GUEST_TR_BASE 0x498 #define VMCB_GUEST_EFER 0x4d0 #define VMCB_GUEST_CR4 0x548 #define VMCB_GUEST_CR3 0x550 #define VMCB_GUEST_CR0 0x558 #define VMCB_GUEST_DR7 0x560 #define VMCB_GUEST_DR6 0x568 #define VMCB_GUEST_RFLAGS 0x570 #define VMCB_GUEST_RIP 0x578 #define VMCB_GUEST_RSP 0x5d8 #define VMCB_GUEST_PAT 0x668 #define VMCB_GUEST_DEBUGCTL 0x670 #define SVM_ATTR_G (1 << 15) #define SVM_ATTR_DB (1 << 14) #define SVM_ATTR_L (1 << 13) #define SVM_ATTR_P (1 << 7) #define SVM_ATTR_S (1 << 4) #define SVM_ATTR_TYPE_A (1 << 0) #define SVM_ATTR_TYPE_RW (1 << 1) #define SVM_ATTR_TYPE_E (1 << 3) #define SVM_ATTR_64BIT_CODE (SVM_ATTR_P | SVM_ATTR_S | SVM_ATTR_TYPE_E | SVM_ATTR_TYPE_RW | SVM_ATTR_TYPE_A | SVM_ATTR_L | SVM_ATTR_G) #define SVM_ATTR_64BIT_DATA (SVM_ATTR_P | SVM_ATTR_S | SVM_ATTR_TYPE_RW | SVM_ATTR_TYPE_A | SVM_ATTR_DB | SVM_ATTR_G) #define X86_NEXT_INSN $0xbadc0de #define X86_PREFIX_SIZE 0xba1d #define KVM_MAX_VCPU 4 #define KVM_PAGE_SIZE (1 << 12) #define KVM_GUEST_PAGES 1024 #define KVM_GUEST_MEM_SIZE (KVM_GUEST_PAGES * KVM_PAGE_SIZE) #define SZ_4K 0x00001000 #define SZ_64K 0x00010000 #define GENMASK_ULL(h,l) (((~0ULL) - (1ULL << (l)) + 1ULL) & (~0ULL >> (63 - (h)))) extern char* __start_guest; static inline uintptr_t executor_fn_guest_addr(void* fn) { volatile uintptr_t start = (uintptr_t)&__start_guest; volatile uintptr_t offset = SYZOS_ADDR_EXECUTOR_CODE; return (uintptr_t)fn - start + offset; } typedef enum { SYZOS_API_UEXIT = 0, SYZOS_API_CODE = 10, SYZOS_API_CPUID = 100, SYZOS_API_WRMSR = 101, SYZOS_API_RDMSR = 102, SYZOS_API_WR_CRN = 103, SYZOS_API_WR_DRN = 104, SYZOS_API_IN_DX = 105, SYZOS_API_OUT_DX = 106, SYZOS_API_SET_IRQ_HANDLER = 200, SYZOS_API_ENABLE_NESTED = 300, SYZOS_API_NESTED_CREATE_VM = 301, SYZOS_API_NESTED_LOAD_CODE = 302, SYZOS_API_NESTED_VMLAUNCH = 303, SYZOS_API_NESTED_VMRESUME = 304, SYZOS_API_NESTED_INTEL_VMWRITE_MASK = 340, SYZOS_API_NESTED_AMD_VMCB_WRITE_MASK = 380, SYZOS_API_NESTED_AMD_INVLPGA = 381, SYZOS_API_NESTED_AMD_STGI = 382, SYZOS_API_NESTED_AMD_CLGI = 383, SYZOS_API_NESTED_AMD_INJECT_EVENT = 384, SYZOS_API_NESTED_AMD_SET_INTERCEPT = 385, SYZOS_API_NESTED_AMD_VMLOAD = 386, SYZOS_API_NESTED_AMD_VMSAVE = 387, SYZOS_API_STOP, } syzos_api_id; struct api_call_header { uint64_t call; uint64_t size; }; struct api_call_uexit { struct api_call_header header; uint64_t exit_code; }; struct api_call_code { struct api_call_header header; uint8_t insns[]; }; struct api_call_nested_load_code { struct api_call_header header; uint64_t vm_id; uint8_t insns[]; }; struct api_call_cpuid { struct api_call_header header; uint32_t eax; uint32_t ecx; }; struct api_call_1 { struct api_call_header header; uint64_t arg; }; struct api_call_2 { struct api_call_header header; uint64_t args[2]; }; struct api_call_3 { struct api_call_header header; uint64_t args[3]; }; struct api_call_5 { struct api_call_header header; uint64_t args[5]; }; struct l2_guest_regs { uint64_t rax, rbx, rcx, rdx, rsi, rdi, rbp; uint64_t r8, r9, r10, r11, r12, r13, r14, r15; }; GUEST_CODE static void guest_uexit(uint64_t exit_code); GUEST_CODE static void nested_vm_exit_handler_intel(uint64_t exit_reason, struct l2_guest_regs* regs); GUEST_CODE static void guest_execute_code(uint8_t* insns, uint64_t size); GUEST_CODE static void guest_handle_cpuid(uint32_t eax, uint32_t ecx); GUEST_CODE static void guest_handle_wrmsr(uint64_t reg, uint64_t val); GUEST_CODE static void guest_handle_rdmsr(uint64_t reg); GUEST_CODE static void guest_handle_wr_crn(struct api_call_2* cmd); GUEST_CODE static void guest_handle_wr_drn(struct api_call_2* cmd); GUEST_CODE static void guest_handle_in_dx(struct api_call_2* cmd); GUEST_CODE static void guest_handle_out_dx(struct api_call_3* cmd); GUEST_CODE static void guest_handle_set_irq_handler(struct api_call_2* cmd); GUEST_CODE static void guest_handle_enable_nested(struct api_call_1* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_create_vm(struct api_call_1* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_load_code(struct api_call_nested_load_code* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_vmlaunch(struct api_call_1* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_vmresume(struct api_call_1* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_intel_vmwrite_mask(struct api_call_5* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_vmcb_write_mask(struct api_call_5* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_invlpga(struct api_call_2* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_stgi(); GUEST_CODE static void guest_handle_nested_amd_clgi(); GUEST_CODE static void guest_handle_nested_amd_inject_event(struct api_call_5* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_set_intercept(struct api_call_5* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_vmload(struct api_call_1* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_vmsave(struct api_call_1* cmd, uint64_t cpu_id); typedef enum { UEXIT_END = (uint64_t)-1, UEXIT_IRQ = (uint64_t)-2, UEXIT_ASSERT = (uint64_t)-3, } uexit_code; typedef enum { CPU_VENDOR_INTEL, CPU_VENDOR_AMD, } cpu_vendor_id; __attribute__((naked)) GUEST_CODE static void dummy_null_handler() { asm("iretq"); } __attribute__((naked)) GUEST_CODE static void uexit_irq_handler() { asm volatile(R"( movq $-2, %rdi call guest_uexit iretq )"); } __attribute__((used)) GUEST_CODE static void guest_main(uint64_t size, uint64_t cpu) { uint64_t addr = X86_SYZOS_ADDR_USER_CODE + cpu * KVM_PAGE_SIZE; while (size >= sizeof(struct api_call_header)) { struct api_call_header* cmd = (struct api_call_header*)addr; if (cmd->call >= SYZOS_API_STOP) return; if (cmd->size > size) return; volatile uint64_t call = cmd->call; if (call == SYZOS_API_UEXIT) { struct api_call_uexit* ucmd = (struct api_call_uexit*)cmd; guest_uexit(ucmd->exit_code); } else if (call == SYZOS_API_CODE) { struct api_call_code* ccmd = (struct api_call_code*)cmd; guest_execute_code(ccmd->insns, cmd->size - sizeof(struct api_call_header)); } else if (call == SYZOS_API_CPUID) { struct api_call_cpuid* ccmd = (struct api_call_cpuid*)cmd; guest_handle_cpuid(ccmd->eax, ccmd->ecx); } else if (call == SYZOS_API_WRMSR) { struct api_call_2* ccmd = (struct api_call_2*)cmd; guest_handle_wrmsr(ccmd->args[0], ccmd->args[1]); } else if (call == SYZOS_API_RDMSR) { struct api_call_1* ccmd = (struct api_call_1*)cmd; guest_handle_rdmsr(ccmd->arg); } else if (call == SYZOS_API_WR_CRN) { guest_handle_wr_crn((struct api_call_2*)cmd); } else if (call == SYZOS_API_WR_DRN) { guest_handle_wr_drn((struct api_call_2*)cmd); } else if (call == SYZOS_API_IN_DX) { guest_handle_in_dx((struct api_call_2*)cmd); } else if (call == SYZOS_API_OUT_DX) { guest_handle_out_dx((struct api_call_3*)cmd); } else if (call == SYZOS_API_SET_IRQ_HANDLER) { guest_handle_set_irq_handler((struct api_call_2*)cmd); } else if (call == SYZOS_API_ENABLE_NESTED) { guest_handle_enable_nested((struct api_call_1*)cmd, cpu); } else if (call == SYZOS_API_NESTED_CREATE_VM) { guest_handle_nested_create_vm((struct api_call_1*)cmd, cpu); } else if (call == SYZOS_API_NESTED_LOAD_CODE) { guest_handle_nested_load_code((struct api_call_nested_load_code*)cmd, cpu); } else if (call == SYZOS_API_NESTED_VMLAUNCH) { guest_handle_nested_vmlaunch((struct api_call_1*)cmd, cpu); } else if (call == SYZOS_API_NESTED_VMRESUME) { guest_handle_nested_vmresume((struct api_call_1*)cmd, cpu); } else if (call == SYZOS_API_NESTED_INTEL_VMWRITE_MASK) { guest_handle_nested_intel_vmwrite_mask((struct api_call_5*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_VMCB_WRITE_MASK) { guest_handle_nested_amd_vmcb_write_mask((struct api_call_5*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_INVLPGA) { guest_handle_nested_amd_invlpga((struct api_call_2*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_STGI) { guest_handle_nested_amd_stgi(); } else if (call == SYZOS_API_NESTED_AMD_CLGI) { guest_handle_nested_amd_clgi(); } else if (call == SYZOS_API_NESTED_AMD_INJECT_EVENT) { guest_handle_nested_amd_inject_event((struct api_call_5*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_SET_INTERCEPT) { guest_handle_nested_amd_set_intercept((struct api_call_5*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_VMLOAD) { guest_handle_nested_amd_vmload((struct api_call_1*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_VMSAVE) { guest_handle_nested_amd_vmsave((struct api_call_1*)cmd, cpu); } addr += cmd->size; size -= cmd->size; }; guest_uexit((uint64_t)-1); } GUEST_CODE static noinline void guest_execute_code(uint8_t* insns, uint64_t size) { volatile void (*fn)() = (volatile void (*)())insns; fn(); } __attribute__((used)) GUEST_CODE static noinline void guest_uexit(uint64_t exit_code) { volatile uint64_t* ptr = (volatile uint64_t*)X86_SYZOS_ADDR_UEXIT; *ptr = exit_code; } GUEST_CODE static noinline void guest_handle_cpuid(uint32_t eax, uint32_t ecx) { asm volatile( "cpuid\n" : : "a"(eax), "c"(ecx) : "rbx", "rdx"); } GUEST_CODE static noinline void wrmsr(uint64_t reg, uint64_t val) { asm volatile( "wrmsr" : : "c"(reg), "a"((uint32_t)val), "d"((uint32_t)(val >> 32)) : "memory"); } GUEST_CODE static noinline void guest_handle_wrmsr(uint64_t reg, uint64_t val) { wrmsr(reg, val); } GUEST_CODE static noinline uint64_t rdmsr(uint64_t msr_id) { uint32_t low = 0, high = 0; asm volatile("rdmsr" : "=a"(low), "=d"(high) : "c"(msr_id)); return ((uint64_t)high << 32) | low; } GUEST_CODE static noinline void guest_handle_rdmsr(uint64_t reg) { (void)rdmsr(reg); } GUEST_CODE static noinline void guest_handle_wr_crn(struct api_call_2* cmd) { uint64_t value = cmd->args[1]; volatile uint64_t reg = cmd->args[0]; if (reg == 0) { asm volatile("movq %0, %%cr0" ::"r"(value) : "memory"); return; } if (reg == 2) { asm volatile("movq %0, %%cr2" ::"r"(value) : "memory"); return; } if (reg == 3) { asm volatile("movq %0, %%cr3" ::"r"(value) : "memory"); return; } if (reg == 4) { asm volatile("movq %0, %%cr4" ::"r"(value) : "memory"); return; } if (reg == 8) { asm volatile("movq %0, %%cr8" ::"r"(value) : "memory"); return; } } GUEST_CODE static noinline void guest_handle_wr_drn(struct api_call_2* cmd) { uint64_t value = cmd->args[1]; volatile uint64_t reg = cmd->args[0]; if (reg == 0) { asm volatile("movq %0, %%dr0" ::"r"(value) : "memory"); return; } if (reg == 1) { asm volatile("movq %0, %%dr1" ::"r"(value) : "memory"); return; } if (reg == 2) { asm volatile("movq %0, %%dr2" ::"r"(value) : "memory"); return; } if (reg == 3) { asm volatile("movq %0, %%dr3" ::"r"(value) : "memory"); return; } if (reg == 4) { asm volatile("movq %0, %%dr4" ::"r"(value) : "memory"); return; } if (reg == 5) { asm volatile("movq %0, %%dr5" ::"r"(value) : "memory"); return; } if (reg == 6) { asm volatile("movq %0, %%dr6" ::"r"(value) : "memory"); return; } if (reg == 7) { asm volatile("movq %0, %%dr7" ::"r"(value) : "memory"); return; } } GUEST_CODE static noinline void guest_handle_in_dx(struct api_call_2* cmd) { uint16_t port = cmd->args[0]; volatile int size = cmd->args[1]; if (size == 1) { uint8_t unused; asm volatile("inb %1, %0" : "=a"(unused) : "d"(port)); return; } if (size == 2) { uint16_t unused; asm volatile("inw %1, %0" : "=a"(unused) : "d"(port)); return; } if (size == 4) { uint32_t unused; asm volatile("inl %1, %0" : "=a"(unused) : "d"(port)); } return; } GUEST_CODE static noinline void guest_handle_out_dx(struct api_call_3* cmd) { uint16_t port = cmd->args[0]; volatile int size = cmd->args[1]; uint32_t data = (uint32_t)cmd->args[2]; if (size == 1) { asm volatile("outb %b0, %w1" ::"a"(data), "d"(port)); return; } if (size == 2) { asm volatile("outw %w0, %w1" ::"a"(data), "d"(port)); return; } if (size == 4) { asm volatile("outl %k0, %w1" ::"a"(data), "d"(port)); return; } } struct idt_entry_64 { uint16_t offset_low; uint16_t selector; uint8_t ist; uint8_t type_attr; uint16_t offset_mid; uint32_t offset_high; uint32_t reserved; } __attribute__((packed)); GUEST_CODE static void set_idt_gate(uint8_t vector, uint64_t handler) { volatile struct idt_entry_64* idt = (volatile struct idt_entry_64*)(X86_SYZOS_ADDR_VAR_IDT); volatile struct idt_entry_64* idt_entry = &idt[vector]; idt_entry->offset_low = (uint16_t)handler; idt_entry->offset_mid = (uint16_t)(handler >> 16); idt_entry->offset_high = (uint32_t)(handler >> 32); idt_entry->selector = X86_SYZOS_SEL_CODE; idt_entry->type_attr = 0x8E; idt_entry->ist = 0; idt_entry->reserved = 0; } GUEST_CODE static noinline void guest_handle_set_irq_handler(struct api_call_2* cmd) { uint8_t vector = (uint8_t)cmd->args[0]; uint64_t type = cmd->args[1]; volatile uint64_t handler_addr = 0; if (type == 1) handler_addr = executor_fn_guest_addr(dummy_null_handler); else if (type == 2) handler_addr = executor_fn_guest_addr(uexit_irq_handler); set_idt_gate(vector, handler_addr); } GUEST_CODE static cpu_vendor_id get_cpu_vendor(void) { uint32_t ebx, eax = 0; asm volatile( "cpuid" : "+a"(eax), "=b"(ebx) : : "ecx", "edx"); if (ebx == 0x756e6547) { return CPU_VENDOR_INTEL; } else if (ebx == 0x68747541) { return CPU_VENDOR_AMD; } else { guest_uexit(UEXIT_ASSERT); return CPU_VENDOR_INTEL; } } GUEST_CODE static inline uint64_t read_cr0(void) { uint64_t val; asm volatile("mov %%cr0, %0" : "=r"(val)); return val; } GUEST_CODE static inline uint64_t read_cr3(void) { uint64_t val; asm volatile("mov %%cr3, %0" : "=r"(val)); return val; } GUEST_CODE static inline uint64_t read_cr4(void) { uint64_t val; asm volatile("mov %%cr4, %0" : "=r"(val)); return val; } GUEST_CODE static inline void write_cr4(uint64_t val) { asm volatile("mov %0, %%cr4" : : "r"(val)); } GUEST_CODE static noinline void vmwrite(uint64_t field, uint64_t value) { uint8_t error = 0; asm volatile("vmwrite %%rax, %%rbx; setna %0" : "=q"(error) : "a"(value), "b"(field) : "cc", "memory"); if (error) guest_uexit(UEXIT_ASSERT); } GUEST_CODE static noinline uint64_t vmread(uint64_t field) { uint64_t value; asm volatile("vmread %%rbx, %%rax" : "=a"(value) : "b"(field) : "cc"); return value; } GUEST_CODE static inline void nested_vmptrld(uint64_t cpu_id, uint64_t vm_id) { uint64_t vmcs_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint8_t error = 0; asm volatile("vmptrld %1; setna %0" : "=q"(error) : "m"(vmcs_addr) : "memory", "cc"); if (error) guest_uexit(0xE2BAD2); } GUEST_CODE static noinline void vmcb_write16(uint64_t vmcb, uint16_t offset, uint16_t val) { *((volatile uint16_t*)(vmcb + offset)) = val; } GUEST_CODE static noinline void vmcb_write32(uint64_t vmcb, uint16_t offset, uint32_t val) { *((volatile uint32_t*)(vmcb + offset)) = val; } GUEST_CODE static noinline uint32_t vmcb_read32(uint64_t vmcb, uint16_t offset) { return *((volatile uint32_t*)(vmcb + offset)); } GUEST_CODE static noinline void vmcb_write64(uint64_t vmcb, uint16_t offset, uint64_t val) { *((volatile uint64_t*)(vmcb + offset)) = val; } GUEST_CODE static noinline uint64_t vmcb_read64(volatile uint8_t* vmcb, uint16_t offset) { return *((volatile uint64_t*)(vmcb + offset)); } GUEST_CODE static void guest_memset(void* s, uint8_t c, int size) { volatile uint8_t* p = (volatile uint8_t*)s; for (int i = 0; i < size; i++) p[i] = c; } GUEST_CODE static void guest_memcpy(void* dst, void* src, int size) { volatile uint8_t* d = (volatile uint8_t*)dst; volatile uint8_t* s = (volatile uint8_t*)src; for (int i = 0; i < size; i++) d[i] = s[i]; } GUEST_CODE static noinline void nested_enable_vmx_intel(uint64_t cpu_id) { uint64_t vmxon_addr = X86_SYZOS_ADDR_VM_ARCH_SPECIFIC(cpu_id); uint64_t cr4 = read_cr4(); cr4 |= X86_CR4_VMXE; write_cr4(cr4); uint64_t feature_control = rdmsr(X86_MSR_IA32_FEATURE_CONTROL); if ((feature_control & 1) == 0) { feature_control |= 0b101; asm volatile("wrmsr" : : "d"(0x0), "c"(X86_MSR_IA32_FEATURE_CONTROL), "A"(feature_control)); } *(uint32_t*)vmxon_addr = rdmsr(X86_MSR_IA32_VMX_BASIC); uint8_t error; asm volatile("vmxon %1; setna %0" : "=q"(error) : "m"(vmxon_addr) : "memory", "cc"); if (error) { guest_uexit(0xE2BAD0); return; } } GUEST_CODE static noinline void nested_enable_svm_amd(uint64_t cpu_id) { uint64_t hsave_addr = X86_SYZOS_ADDR_VM_ARCH_SPECIFIC(cpu_id); uint64_t efer = rdmsr(X86_MSR_IA32_EFER); efer |= X86_EFER_SVME; wrmsr(X86_MSR_IA32_EFER, efer); wrmsr(X86_MSR_VM_HSAVE_PA, hsave_addr); } GUEST_CODE static noinline void guest_handle_enable_nested(struct api_call_1* cmd, uint64_t cpu_id) { if (get_cpu_vendor() == CPU_VENDOR_INTEL) { nested_enable_vmx_intel(cpu_id); } else { nested_enable_svm_amd(cpu_id); } } GUEST_CODE static noinline void setup_l2_page_tables(cpu_vendor_id vendor, uint64_t cpu_id, uint64_t vm_id) { uint64_t l2_pml4_addr = X86_SYZOS_ADDR_VM_PGTABLE(cpu_id, vm_id); uint64_t l2_pdpt_addr = l2_pml4_addr + KVM_PAGE_SIZE; uint64_t l2_pd_addr = l2_pml4_addr + 2 * KVM_PAGE_SIZE; uint64_t l2_pt_addr = l2_pml4_addr + 3 * KVM_PAGE_SIZE; volatile uint64_t* pml4 = (volatile uint64_t*)l2_pml4_addr; volatile uint64_t* pdpt = (volatile uint64_t*)l2_pdpt_addr; volatile uint64_t* pd = (volatile uint64_t*)l2_pd_addr; volatile uint64_t* pt = (volatile uint64_t*)l2_pt_addr; guest_memset((void*)l2_pml4_addr, 0, KVM_PAGE_SIZE); guest_memset((void*)l2_pdpt_addr, 0, KVM_PAGE_SIZE); guest_memset((void*)l2_pd_addr, 0, KVM_PAGE_SIZE); guest_memset((void*)l2_pt_addr, 0, KVM_PAGE_SIZE); guest_memset((void*)X86_SYZOS_ADDR_MSR_BITMAP(cpu_id, vm_id), 0, KVM_PAGE_SIZE); uint64_t flags = X86_PDE64_PRESENT | X86_PDE64_RW | X86_PDE64_USER; pml4[0] = l2_pdpt_addr | flags; pdpt[0] = l2_pd_addr | flags; pd[0] = l2_pt_addr | flags; uint64_t pt_flags = flags; if (vendor == CPU_VENDOR_INTEL) { pt_flags |= EPT_MEMTYPE_WB | EPT_ACCESSED | EPT_DIRTY; } else { pt_flags |= X86_PDE64_ACCESSED | X86_PDE64_DIRTY; } for (int i = 0; i < 512; i++) pt[i] = (i * KVM_PAGE_SIZE) | pt_flags; } GUEST_CODE static noinline void init_vmcs_control_fields(uint64_t cpu_id, uint64_t vm_id) { uint64_t vmx_msr = rdmsr(X86_MSR_IA32_VMX_TRUE_PINBASED_CTLS); vmwrite(VMCS_PIN_BASED_VM_EXEC_CONTROL, (uint32_t)vmx_msr); vmx_msr = (uint32_t)rdmsr(X86_MSR_IA32_VMX_PROCBASED_CTLS2); vmx_msr |= SECONDARY_EXEC_ENABLE_EPT | SECONDARY_EXEC_ENABLE_RDTSCP; vmwrite(VMCS_SECONDARY_VM_EXEC_CONTROL, vmx_msr); vmx_msr = rdmsr(X86_MSR_IA32_VMX_TRUE_PROCBASED_CTLS); vmx_msr |= CPU_BASED_ACTIVATE_SECONDARY_CONTROLS; vmx_msr |= CPU_BASED_HLT_EXITING | CPU_BASED_RDTSC_EXITING; vmwrite(VMCS_CPU_BASED_VM_EXEC_CONTROL, (uint32_t)vmx_msr); vmx_msr = rdmsr(X86_MSR_IA32_VMX_TRUE_EXIT_CTLS); vmwrite(VMCS_VM_EXIT_CONTROLS, (uint32_t)vmx_msr | VM_EXIT_HOST_ADDR_SPACE_SIZE); vmx_msr = rdmsr(X86_MSR_IA32_VMX_TRUE_ENTRY_CTLS); vmwrite(VMCS_VM_ENTRY_CONTROLS, (uint32_t)vmx_msr | VM_ENTRY_IA32E_MODE); uint64_t eptp = (X86_SYZOS_ADDR_VM_PGTABLE(cpu_id, vm_id) & ~0xFFF) | (6 << 0) | (3 << 3); vmwrite(VMCS_EPT_POINTER, eptp); vmwrite(VMCS_CR0_GUEST_HOST_MASK, 0); vmwrite(VMCS_CR4_GUEST_HOST_MASK, 0); vmwrite(VMCS_CR0_READ_SHADOW, read_cr0()); vmwrite(VMCS_CR4_READ_SHADOW, read_cr4()); vmwrite(VMCS_MSR_BITMAP, 0); vmwrite(VMCS_VMREAD_BITMAP, 0); vmwrite(VMCS_VMWRITE_BITMAP, 0); vmwrite(VMCS_EXCEPTION_BITMAP, (1 << 6)); vmwrite(VMCS_VIRTUAL_PROCESSOR_ID, 0); vmwrite(VMCS_POSTED_INTR_NV, 0); vmwrite(VMCS_PAGE_FAULT_ERROR_CODE_MASK, 0); vmwrite(VMCS_PAGE_FAULT_ERROR_CODE_MATCH, -1); vmwrite(VMCS_CR3_TARGET_COUNT, 0); vmwrite(VMCS_VM_EXIT_MSR_STORE_COUNT, 0); vmwrite(VMCS_VM_EXIT_MSR_LOAD_COUNT, 0); vmwrite(VMCS_VM_ENTRY_MSR_LOAD_COUNT, 0); vmwrite(VMCS_VM_ENTRY_INTR_INFO_FIELD, 0); vmwrite(VMCS_TPR_THRESHOLD, 0); } typedef enum { SYZOS_NESTED_EXIT_REASON_HLT = 1, SYZOS_NESTED_EXIT_REASON_INVD = 2, SYZOS_NESTED_EXIT_REASON_CPUID = 3, SYZOS_NESTED_EXIT_REASON_RDTSC = 4, SYZOS_NESTED_EXIT_REASON_RDTSCP = 5, SYZOS_NESTED_EXIT_REASON_UNKNOWN = 0xFF, } syz_nested_exit_reason; GUEST_CODE static void guest_uexit_l2(uint64_t exit_reason, syz_nested_exit_reason mapped_reason, cpu_vendor_id vendor) { if (mapped_reason != SYZOS_NESTED_EXIT_REASON_UNKNOWN) { guest_uexit(0xe2e20000 | mapped_reason); } else if (vendor == CPU_VENDOR_INTEL) { guest_uexit(0xe2110000 | exit_reason); } else { guest_uexit(0xe2aa0000 | exit_reason); } } #define EXIT_REASON_CPUID 0xa #define EXIT_REASON_HLT 0xc #define EXIT_REASON_INVD 0xd #define EXIT_REASON_RDTSC 0x10 #define EXIT_REASON_RDTSCP 0x33 GUEST_CODE static syz_nested_exit_reason map_intel_exit_reason(uint64_t basic_reason) { volatile uint64_t reason = basic_reason; if (reason == EXIT_REASON_HLT) return SYZOS_NESTED_EXIT_REASON_HLT; if (reason == EXIT_REASON_INVD) return SYZOS_NESTED_EXIT_REASON_INVD; if (reason == EXIT_REASON_CPUID) return SYZOS_NESTED_EXIT_REASON_CPUID; if (reason == EXIT_REASON_RDTSC) return SYZOS_NESTED_EXIT_REASON_RDTSC; if (reason == EXIT_REASON_RDTSCP) return SYZOS_NESTED_EXIT_REASON_RDTSCP; return SYZOS_NESTED_EXIT_REASON_UNKNOWN; } GUEST_CODE static void advance_l2_rip_intel(uint64_t basic_reason) { volatile uint64_t reason = basic_reason; uint64_t rip = vmread(VMCS_GUEST_RIP); if ((reason == EXIT_REASON_INVD) || (reason == EXIT_REASON_CPUID) || (reason == EXIT_REASON_RDTSC)) { rip += 2; } else if (reason == EXIT_REASON_RDTSCP) { rip += 3; } vmwrite(VMCS_GUEST_RIP, rip); } __attribute__((used)) GUEST_CODE static void nested_vm_exit_handler_intel(uint64_t exit_reason, struct l2_guest_regs* regs) { uint64_t basic_reason = exit_reason & 0xFFFF; syz_nested_exit_reason mapped_reason = map_intel_exit_reason(basic_reason); guest_uexit_l2(exit_reason, mapped_reason, CPU_VENDOR_INTEL); advance_l2_rip_intel(basic_reason); } extern char after_vmentry_label; __attribute__((naked)) GUEST_CODE static void nested_vm_exit_handler_intel_asm(void) { asm volatile(R"( push %%rax push %%rbx push %%rcx push %%rdx push %%rsi push %%rdi push %%rbp push %%r8 push %%r9 push %%r10 push %%r11 push %%r12 push %%r13 push %%r14 push %%r15 mov %%rsp, %%rsi mov %[vm_exit_reason], %%rbx vmread %%rbx, %%rdi call nested_vm_exit_handler_intel add %[stack_cleanup_size], %%rsp jmp after_vmentry_label )" : : [stack_cleanup_size] "i"(sizeof(struct l2_guest_regs)), [vm_exit_reason] "i"(VMCS_VM_EXIT_REASON) : "memory", "cc", "rbx", "rdi", "rsi"); } #define VMEXIT_RDTSC 0x6e #define VMEXIT_CPUID 0x72 #define VMEXIT_INVD 0x76 #define VMEXIT_HLT 0x78 #define VMEXIT_RDTSCP 0x87 GUEST_CODE static syz_nested_exit_reason map_amd_exit_reason(uint64_t basic_reason) { volatile uint64_t reason = basic_reason; if (reason == VMEXIT_HLT) return SYZOS_NESTED_EXIT_REASON_HLT; if (reason == VMEXIT_INVD) return SYZOS_NESTED_EXIT_REASON_INVD; if (reason == VMEXIT_CPUID) return SYZOS_NESTED_EXIT_REASON_CPUID; if (reason == VMEXIT_RDTSC) return SYZOS_NESTED_EXIT_REASON_RDTSC; if (reason == VMEXIT_RDTSCP) return SYZOS_NESTED_EXIT_REASON_RDTSCP; return SYZOS_NESTED_EXIT_REASON_UNKNOWN; } GUEST_CODE static void advance_l2_rip_amd(uint64_t basic_reason, uint64_t cpu_id, uint64_t vm_id) { volatile uint64_t reason = basic_reason; uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint64_t rip = vmcb_read64((volatile uint8_t*)vmcb_addr, VMCB_GUEST_RIP); if ((reason == VMEXIT_INVD) || (reason == VMEXIT_CPUID) || (reason == VMEXIT_RDTSC)) { rip += 2; } else if (reason == VMEXIT_RDTSCP) { rip += 3; } vmcb_write64(vmcb_addr, VMCB_GUEST_RIP, rip); } __attribute__((used)) GUEST_CODE static void nested_vm_exit_handler_amd(uint64_t exit_reason, uint64_t cpu_id, uint64_t vm_id) { volatile uint64_t basic_reason = exit_reason & 0xFFFF; syz_nested_exit_reason mapped_reason = map_amd_exit_reason(basic_reason); guest_uexit_l2(exit_reason, mapped_reason, CPU_VENDOR_AMD); advance_l2_rip_amd(basic_reason, cpu_id, vm_id); } GUEST_CODE static noinline void init_vmcs_host_state(void) { vmwrite(VMCS_HOST_CS_SELECTOR, X86_SYZOS_SEL_CODE); vmwrite(VMCS_HOST_DS_SELECTOR, X86_SYZOS_SEL_DATA); vmwrite(VMCS_HOST_ES_SELECTOR, X86_SYZOS_SEL_DATA); vmwrite(VMCS_HOST_SS_SELECTOR, X86_SYZOS_SEL_DATA); vmwrite(VMCS_HOST_FS_SELECTOR, X86_SYZOS_SEL_DATA); vmwrite(VMCS_HOST_GS_SELECTOR, X86_SYZOS_SEL_DATA); vmwrite(VMCS_HOST_TR_SELECTOR, X86_SYZOS_SEL_TSS64); vmwrite(VMCS_HOST_TR_BASE, 0); vmwrite(VMCS_HOST_GDTR_BASE, X86_SYZOS_ADDR_GDT); vmwrite(VMCS_HOST_IDTR_BASE, X86_SYZOS_ADDR_VAR_IDT); vmwrite(VMCS_HOST_FS_BASE, rdmsr(X86_MSR_FS_BASE)); vmwrite(VMCS_HOST_GS_BASE, rdmsr(X86_MSR_GS_BASE)); uint64_t tmpreg = 0; asm volatile("mov %%rsp, %0" : "=r"(tmpreg)); vmwrite(VMCS_HOST_RSP, tmpreg); vmwrite(VMCS_HOST_RIP, (uintptr_t)nested_vm_exit_handler_intel_asm); vmwrite(VMCS_HOST_CR0, read_cr0()); vmwrite(VMCS_HOST_CR3, read_cr3()); vmwrite(VMCS_HOST_CR4, read_cr4()); vmwrite(VMCS_HOST_IA32_PAT, rdmsr(X86_MSR_IA32_CR_PAT)); vmwrite(VMCS_HOST_IA32_EFER, rdmsr(X86_MSR_IA32_EFER)); vmwrite(VMCS_HOST_IA32_PERF_GLOBAL_CTRL, rdmsr(X86_MSR_CORE_PERF_GLOBAL_CTRL)); vmwrite(VMCS_HOST_IA32_SYSENTER_CS, rdmsr(X86_MSR_IA32_SYSENTER_CS)); vmwrite(VMCS_HOST_IA32_SYSENTER_ESP, rdmsr(X86_MSR_IA32_SYSENTER_ESP)); vmwrite(VMCS_HOST_IA32_SYSENTER_EIP, rdmsr(X86_MSR_IA32_SYSENTER_EIP)); } #define COPY_VMCS_FIELD(GUEST_FIELD,HOST_FIELD) vmwrite(GUEST_FIELD, vmread(HOST_FIELD)) #define SETUP_L2_SEGMENT(SEG,SELECTOR,BASE,LIMIT,AR) vmwrite(VMCS_GUEST_ ##SEG ##_SELECTOR, SELECTOR); vmwrite(VMCS_GUEST_ ##SEG ##_BASE, BASE); vmwrite(VMCS_GUEST_ ##SEG ##_LIMIT, LIMIT); vmwrite(VMCS_GUEST_ ##SEG ##_ACCESS_RIGHTS, AR); GUEST_CODE static noinline void init_vmcs_guest_state(uint64_t cpu_id, uint64_t vm_id) { uint64_t l2_code_addr = X86_SYZOS_ADDR_VM_CODE(cpu_id, vm_id); uint64_t l2_stack_addr = X86_SYZOS_ADDR_VM_STACK(cpu_id, vm_id); SETUP_L2_SEGMENT(CS, vmread(VMCS_HOST_CS_SELECTOR), 0, 0xFFFFFFFF, VMX_AR_64BIT_CODE); SETUP_L2_SEGMENT(DS, vmread(VMCS_HOST_DS_SELECTOR), 0, 0xFFFFFFFF, VMX_AR_64BIT_DATA_STACK); SETUP_L2_SEGMENT(ES, vmread(VMCS_HOST_ES_SELECTOR), 0, 0xFFFFFFFF, VMX_AR_64BIT_DATA_STACK); SETUP_L2_SEGMENT(SS, vmread(VMCS_HOST_SS_SELECTOR), 0, 0xFFFFFFFF, VMX_AR_64BIT_DATA_STACK); SETUP_L2_SEGMENT(FS, vmread(VMCS_HOST_FS_SELECTOR), vmread(VMCS_HOST_FS_BASE), 0xFFFFFFFF, VMX_AR_64BIT_DATA_STACK); SETUP_L2_SEGMENT(GS, vmread(VMCS_HOST_GS_SELECTOR), vmread(VMCS_HOST_GS_BASE), 0xFFFFFFFF, VMX_AR_64BIT_DATA_STACK); SETUP_L2_SEGMENT(TR, vmread(VMCS_HOST_TR_SELECTOR), vmread(VMCS_HOST_TR_BASE), 0x67, VMX_AR_TSS_BUSY); SETUP_L2_SEGMENT(LDTR, 0, 0, 0, VMX_AR_LDTR_UNUSABLE); vmwrite(VMCS_GUEST_CR0, vmread(VMCS_HOST_CR0)); vmwrite(VMCS_GUEST_CR3, vmread(VMCS_HOST_CR3)); vmwrite(VMCS_GUEST_CR4, vmread(VMCS_HOST_CR4)); vmwrite(VMCS_GUEST_RIP, l2_code_addr); vmwrite(VMCS_GUEST_RSP, l2_stack_addr + KVM_PAGE_SIZE - 8); vmwrite(VMCS_GUEST_RFLAGS, RFLAGS_1_BIT); vmwrite(VMCS_GUEST_DR7, 0x400); COPY_VMCS_FIELD(VMCS_GUEST_IA32_EFER, VMCS_HOST_IA32_EFER); COPY_VMCS_FIELD(VMCS_GUEST_IA32_PAT, VMCS_HOST_IA32_PAT); COPY_VMCS_FIELD(VMCS_GUEST_IA32_PERF_GLOBAL_CTRL, VMCS_HOST_IA32_PERF_GLOBAL_CTRL); COPY_VMCS_FIELD(VMCS_GUEST_SYSENTER_CS, VMCS_HOST_IA32_SYSENTER_CS); COPY_VMCS_FIELD(VMCS_GUEST_SYSENTER_ESP, VMCS_HOST_IA32_SYSENTER_ESP); COPY_VMCS_FIELD(VMCS_GUEST_SYSENTER_EIP, VMCS_HOST_IA32_SYSENTER_EIP); vmwrite(VMCS_GUEST_IA32_DEBUGCTL, 0); vmwrite(VMCS_GUEST_GDTR_BASE, vmread(VMCS_HOST_GDTR_BASE)); vmwrite(VMCS_GUEST_GDTR_LIMIT, 0xffff); vmwrite(VMCS_GUEST_IDTR_BASE, vmread(VMCS_HOST_IDTR_BASE)); vmwrite(VMCS_GUEST_IDTR_LIMIT, 0xffff); vmwrite(VMCS_LINK_POINTER, 0xffffffffffffffff); vmwrite(VMCS_GUEST_ACTIVITY_STATE, 0); vmwrite(VMCS_GUEST_INTERRUPTIBILITY_INFO, 0); vmwrite(VMCS_GUEST_PENDING_DBG_EXCEPTIONS, 0); vmwrite(VMCS_VMX_PREEMPTION_TIMER_VALUE, 0); vmwrite(VMCS_GUEST_INTR_STATUS, 0); vmwrite(VMCS_GUEST_PML_INDEX, 0); } GUEST_CODE static noinline void nested_create_vm_intel(struct api_call_1* cmd, uint64_t cpu_id) { uint64_t vm_id = cmd->arg; uint64_t vmcs_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint8_t error = 0; *(uint32_t*)vmcs_addr = rdmsr(X86_MSR_IA32_VMX_BASIC); asm volatile("vmclear %1; setna %0" : "=q"(error) : "m"(vmcs_addr) : "memory", "cc"); if (error) { guest_uexit(0xE2BAD1); return; } nested_vmptrld(cpu_id, vm_id); setup_l2_page_tables(CPU_VENDOR_INTEL, cpu_id, vm_id); init_vmcs_control_fields(cpu_id, vm_id); init_vmcs_host_state(); init_vmcs_guest_state(cpu_id, vm_id); } #define SETUP_L2_SEGMENT_SVM(VMBC_PTR,SEG_NAME,SELECTOR,BASE,LIMIT,ATTR) vmcb_write16(VMBC_PTR, VMCB_GUEST_ ##SEG_NAME ##_SEL, SELECTOR); vmcb_write16(VMBC_PTR, VMCB_GUEST_ ##SEG_NAME ##_ATTR, ATTR); vmcb_write32(VMBC_PTR, VMCB_GUEST_ ##SEG_NAME ##_LIM, LIMIT); vmcb_write64(VMBC_PTR, VMCB_GUEST_ ##SEG_NAME ##_BASE, BASE); GUEST_CODE static noinline void init_vmcb_guest_state(uint64_t cpu_id, uint64_t vm_id) { uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint64_t l2_code_addr = X86_SYZOS_ADDR_VM_CODE(cpu_id, vm_id); uint64_t l2_stack_addr = X86_SYZOS_ADDR_VM_STACK(cpu_id, vm_id); uint64_t npt_pml4_addr = X86_SYZOS_ADDR_VM_PGTABLE(cpu_id, vm_id); SETUP_L2_SEGMENT_SVM(vmcb_addr, CS, X86_SYZOS_SEL_CODE, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_CODE); SETUP_L2_SEGMENT_SVM(vmcb_addr, DS, X86_SYZOS_SEL_DATA, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_DATA); SETUP_L2_SEGMENT_SVM(vmcb_addr, ES, X86_SYZOS_SEL_DATA, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_DATA); SETUP_L2_SEGMENT_SVM(vmcb_addr, SS, X86_SYZOS_SEL_DATA, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_DATA); SETUP_L2_SEGMENT_SVM(vmcb_addr, FS, X86_SYZOS_SEL_DATA, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_DATA); SETUP_L2_SEGMENT_SVM(vmcb_addr, GS, X86_SYZOS_SEL_DATA, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_DATA); SETUP_L2_SEGMENT_SVM(vmcb_addr, TR, X86_SYZOS_SEL_TSS64, X86_SYZOS_ADDR_VAR_TSS, 0x67, VMX_AR_TSS_AVAILABLE); SETUP_L2_SEGMENT_SVM(vmcb_addr, LDTR, 0, 0, 0, SVM_ATTR_LDTR_UNUSABLE); uint64_t efer = rdmsr(X86_MSR_IA32_EFER); vmcb_write64(vmcb_addr, VMCB_GUEST_CR0, read_cr0() | X86_CR0_WP); vmcb_write64(vmcb_addr, VMCB_GUEST_CR3, read_cr3()); vmcb_write64(vmcb_addr, VMCB_GUEST_CR4, read_cr4()); vmcb_write64(vmcb_addr, VMCB_GUEST_RIP, l2_code_addr); vmcb_write64(vmcb_addr, VMCB_GUEST_RSP, l2_stack_addr + KVM_PAGE_SIZE - 8); vmcb_write64(vmcb_addr, VMCB_GUEST_RFLAGS, RFLAGS_1_BIT); vmcb_write64(vmcb_addr, VMCB_GUEST_DEBUGCTL, 0); vmcb_write64(vmcb_addr, VMCB_GUEST_DR6, 0x0); vmcb_write64(vmcb_addr, VMCB_GUEST_DR7, 0x0); vmcb_write64(vmcb_addr, VMCB_GUEST_EFER, efer & ~X86_EFER_SCE); vmcb_write64(vmcb_addr, VMCB_GUEST_PAT, rdmsr(X86_MSR_IA32_CR_PAT)); struct { uint16_t limit; uint64_t base; } __attribute__((packed)) gdtr, idtr; asm volatile("sgdt %0" : "=m"(gdtr)); asm volatile("sidt %0" : "=m"(idtr)); vmcb_write64(vmcb_addr, VMCB_GUEST_GDTR_BASE, gdtr.base); vmcb_write32(vmcb_addr, VMCB_GUEST_GDTR_LIM, gdtr.limit); vmcb_write64(vmcb_addr, VMCB_GUEST_IDTR_BASE, idtr.base); vmcb_write32(vmcb_addr, VMCB_GUEST_IDTR_LIM, idtr.limit); vmcb_write32(vmcb_addr, VMCB_CTRL_INTERCEPT_VEC3, VMCB_CTRL_INTERCEPT_VEC3_ALL); vmcb_write32(vmcb_addr, VMCB_CTRL_INTERCEPT_VEC4, VMCB_CTRL_INTERCEPT_VEC4_ALL); vmcb_write64(vmcb_addr, VMCB_CTRL_NP_ENABLE, (1 << VMCB_CTRL_NPT_ENABLE_BIT)); uint64_t npt_pointer = (npt_pml4_addr & ~0xFFF); vmcb_write64(vmcb_addr, VMCB_CTRL_N_CR3, npt_pointer); vmcb_write32(vmcb_addr, VMCB_CTRL_ASID, 1); } GUEST_CODE static noinline void nested_create_vm_amd(struct api_call_1* cmd, uint64_t cpu_id) { uint64_t vm_id = cmd->arg; uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); guest_memset((void*)vmcb_addr, 0, KVM_PAGE_SIZE); guest_memset((void*)X86_SYZOS_ADDR_VM_ARCH_SPECIFIC(cpu_id), 0, KVM_PAGE_SIZE); setup_l2_page_tables(CPU_VENDOR_AMD, cpu_id, vm_id); init_vmcb_guest_state(cpu_id, vm_id); } GUEST_CODE static noinline void guest_handle_nested_create_vm(struct api_call_1* cmd, uint64_t cpu_id) { if (get_cpu_vendor() == CPU_VENDOR_INTEL) { nested_create_vm_intel(cmd, cpu_id); } else { nested_create_vm_amd(cmd, cpu_id); } } GUEST_CODE static noinline void guest_handle_nested_load_code(struct api_call_nested_load_code* cmd, uint64_t cpu_id) { uint64_t vm_id = cmd->vm_id; uint64_t l2_code_addr = X86_SYZOS_ADDR_VM_CODE(cpu_id, vm_id); uint64_t l2_stack_addr = X86_SYZOS_ADDR_VM_STACK(cpu_id, vm_id); uint64_t l2_code_size = cmd->header.size - sizeof(struct api_call_header) - sizeof(uint64_t); if (l2_code_size > KVM_PAGE_SIZE) l2_code_size = KVM_PAGE_SIZE; guest_memcpy((void*)l2_code_addr, (void*)cmd->insns, l2_code_size); if (get_cpu_vendor() == CPU_VENDOR_INTEL) { nested_vmptrld(cpu_id, vm_id); vmwrite(VMCS_GUEST_RIP, l2_code_addr); vmwrite(VMCS_GUEST_RSP, l2_stack_addr + KVM_PAGE_SIZE - 8); } else { vmcb_write64(X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id), VMCB_GUEST_RIP, l2_code_addr); vmcb_write64(X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id), VMCB_GUEST_RSP, l2_stack_addr + KVM_PAGE_SIZE - 8); } } GUEST_CODE static noinline __optnone void guest_handle_nested_vmentry_intel(uint64_t vm_id, uint64_t cpu_id, bool is_launch) { uint64_t vmx_error_code = 0; uint8_t fail_flag = 0; nested_vmptrld(cpu_id, vm_id); if (is_launch) { asm volatile(R"( vmlaunch setc %%al setz %%bl or %%bl, %%al)" : "=a"(fail_flag) : : "rbx", "cc", "memory"); } else { asm volatile(R"( vmresume setc %%al setz %%bl or %%bl, %%al)" : "=a"(fail_flag) : : "rbx", "cc", "memory"); } asm volatile(".globl after_vmentry_label\nafter_vmentry_label:"); if (fail_flag) { vmx_error_code = vmread(VMCS_VM_INSTRUCTION_ERROR); guest_uexit(0xE2E10000 | (uint32_t)vmx_error_code); return; } } GUEST_CODE static noinline void guest_run_amd_vm(uint64_t cpu_id, uint64_t vm_id) { uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); volatile uint8_t* vmcb_ptr = (volatile uint8_t*)vmcb_addr; uint8_t fail_flag = 0; asm volatile( "mov %1, %%rax\n\t" "vmrun\n\t" "setc %0\n\t" : "=q"(fail_flag) : "m"(vmcb_addr) : "rax", "cc", "memory"); if (fail_flag) { guest_uexit(0xE2E10000 | 0xFFFF); return; } uint64_t exit_reason = vmcb_read64(vmcb_ptr, VMCB_EXIT_CODE); nested_vm_exit_handler_amd(exit_reason, cpu_id, vm_id); } GUEST_CODE static noinline void guest_handle_nested_vmlaunch(struct api_call_1* cmd, uint64_t cpu_id) { uint64_t vm_id = cmd->arg; if (get_cpu_vendor() == CPU_VENDOR_INTEL) { guest_handle_nested_vmentry_intel(vm_id, cpu_id, true); } else { guest_run_amd_vm(cpu_id, vm_id); } } GUEST_CODE static noinline void guest_handle_nested_vmresume(struct api_call_1* cmd, uint64_t cpu_id) { uint64_t vm_id = cmd->arg; if (get_cpu_vendor() == CPU_VENDOR_INTEL) { guest_handle_nested_vmentry_intel(vm_id, cpu_id, false); } else { guest_run_amd_vm(cpu_id, vm_id); } } GUEST_CODE static noinline void guest_handle_nested_intel_vmwrite_mask(struct api_call_5* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_INTEL) return; uint64_t vm_id = cmd->args[0]; nested_vmptrld(cpu_id, vm_id); uint64_t field = cmd->args[1]; uint64_t set_mask = cmd->args[2]; uint64_t unset_mask = cmd->args[3]; uint64_t flip_mask = cmd->args[4]; uint64_t current_value = vmread(field); uint64_t new_value = (current_value & ~unset_mask) | set_mask; new_value ^= flip_mask; vmwrite(field, new_value); } GUEST_CODE static noinline void guest_handle_nested_amd_vmcb_write_mask(struct api_call_5* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t vm_id = cmd->args[0]; uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint64_t offset = cmd->args[1]; uint64_t set_mask = cmd->args[2]; uint64_t unset_mask = cmd->args[3]; uint64_t flip_mask = cmd->args[4]; uint64_t current_value = vmcb_read64((volatile uint8_t*)vmcb_addr, offset); uint64_t new_value = (current_value & ~unset_mask) | set_mask; new_value ^= flip_mask; vmcb_write64(vmcb_addr, offset, new_value); } GUEST_CODE static noinline void guest_handle_nested_amd_invlpga(struct api_call_2* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t linear_addr = cmd->args[0]; uint32_t asid = (uint32_t)cmd->args[1]; asm volatile("invlpga" : : "a"(linear_addr), "c"(asid) : "memory"); } GUEST_CODE static noinline void guest_handle_nested_amd_stgi() { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; asm volatile("stgi" ::: "memory"); } GUEST_CODE static noinline void guest_handle_nested_amd_clgi() { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; asm volatile("clgi" ::: "memory"); } GUEST_CODE static noinline void guest_handle_nested_amd_inject_event(struct api_call_5* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t vm_id = cmd->args[0]; uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint64_t vector = cmd->args[1] & 0xFF; uint64_t type = cmd->args[2] & 0x7; uint64_t error_code = cmd->args[3] & 0xFFFFFFFF; uint64_t flags = cmd->args[4]; uint64_t event_inj = vector; event_inj |= (type << 8); if (flags & 2) event_inj |= (1ULL << 11); if (flags & 1) event_inj |= (1ULL << 31); event_inj |= (error_code << 32); vmcb_write64(vmcb_addr, 0x60, event_inj); } GUEST_CODE static noinline void guest_handle_nested_amd_set_intercept(struct api_call_5* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t vm_id = cmd->args[0]; uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint64_t offset = cmd->args[1]; uint64_t bit_mask = cmd->args[2]; uint64_t action = cmd->args[3]; uint32_t current = vmcb_read32(vmcb_addr, (uint16_t)offset); if (action == 1) current |= (uint32_t)bit_mask; else current &= ~((uint32_t)bit_mask); vmcb_write32(vmcb_addr, (uint16_t)offset, current); } GUEST_CODE static noinline void guest_handle_nested_amd_vmload(struct api_call_1* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t vm_id = cmd->arg; uint64_t vmcb_pa = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); asm volatile("vmload %%rax" ::"a"(vmcb_pa) : "memory"); } GUEST_CODE static noinline void guest_handle_nested_amd_vmsave(struct api_call_1* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t vm_id = cmd->arg; uint64_t vmcb_pa = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); asm volatile("vmsave %%rax" ::"a"(vmcb_pa) : "memory"); } const char kvm_asm16_cpl3[] = "\x0f\x20\xc0\x66\x83\xc8\x01\x0f\x22\xc0\xb8\xa0\x00\x0f\x00\xd8\xb8\x2b\x00\x8e\xd8\x8e\xc0\x8e\xe0\x8e\xe8\xbc\x00\x01\xc7\x06\x00\x01\x1d\xba\xc7\x06\x02\x01\x23\x00\xc7\x06\x04\x01\x00\x01\xc7\x06\x06\x01\x2b\x00\xcb"; const char kvm_asm32_paged[] = "\x0f\x20\xc0\x0d\x00\x00\x00\x80\x0f\x22\xc0"; const char kvm_asm32_vm86[] = "\x66\xb8\xb8\x00\x0f\x00\xd8\xea\x00\x00\x00\x00\xd0\x00"; const char kvm_asm32_paged_vm86[] = "\x0f\x20\xc0\x0d\x00\x00\x00\x80\x0f\x22\xc0\x66\xb8\xb8\x00\x0f\x00\xd8\xea\x00\x00\x00\x00\xd0\x00"; const char kvm_asm64_enable_long[] = "\x0f\x20\xc0\x0d\x00\x00\x00\x80\x0f\x22\xc0\xea\xde\xc0\xad\x0b\x50\x00\x48\xc7\xc0\xd8\x00\x00\x00\x0f\x00\xd8"; const char kvm_asm64_init_vm[] = 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const char kvm_asm64_vm_exit[] = "\x48\xc7\xc3\x00\x44\x00\x00\x0f\x78\xda\x48\xc7\xc3\x02\x44\x00\x00\x0f\x78\xd9\x48\xc7\xc0\x00\x64\x00\x00\x0f\x78\xc0\x48\xc7\xc3\x1e\x68\x00\x00\x0f\x78\xdb\xf4"; const char kvm_asm64_cpl3[] = "\x0f\x20\xc0\x0d\x00\x00\x00\x80\x0f\x22\xc0\xea\xde\xc0\xad\x0b\x50\x00\x48\xc7\xc0\xd8\x00\x00\x00\x0f\x00\xd8\x48\xc7\xc0\x6b\x00\x00\x00\x8e\xd8\x8e\xc0\x8e\xe0\x8e\xe8\x48\xc7\xc4\x80\x0f\x00\x00\x48\xc7\x04\x24\x1d\xba\x00\x00\x48\xc7\x44\x24\x04\x63\x00\x00\x00\x48\xc7\x44\x24\x08\x80\x0f\x00\x00\x48\xc7\x44\x24\x0c\x6b\x00\x00\x00\xcb"; #define KVM_SMI _IO(KVMIO, 0xb7) struct tss16 { uint16_t prev; uint16_t sp0; uint16_t ss0; uint16_t sp1; uint16_t ss1; uint16_t sp2; uint16_t ss2; uint16_t ip; uint16_t flags; uint16_t ax; uint16_t cx; uint16_t dx; uint16_t bx; uint16_t sp; uint16_t bp; uint16_t si; uint16_t di; uint16_t es; uint16_t cs; uint16_t ss; uint16_t ds; uint16_t ldt; } __attribute__((packed)); struct tss32 { uint16_t prev, prevh; uint32_t sp0; uint16_t ss0, ss0h; uint32_t sp1; uint16_t ss1, ss1h; uint32_t sp2; uint16_t ss2, ss2h; uint32_t cr3; uint32_t ip; uint32_t flags; uint32_t ax; uint32_t cx; uint32_t dx; uint32_t bx; uint32_t sp; uint32_t bp; uint32_t si; uint32_t di; uint16_t es, esh; uint16_t cs, csh; uint16_t ss, ssh; uint16_t ds, dsh; uint16_t fs, fsh; uint16_t gs, gsh; uint16_t ldt, ldth; uint16_t trace; uint16_t io_bitmap; } __attribute__((packed)); struct tss64 { uint32_t reserved0; uint64_t rsp[3]; uint64_t reserved1; uint64_t ist[7]; uint64_t reserved2; uint16_t reserved3; uint16_t io_bitmap; } __attribute__((packed)); static void fill_segment_descriptor(uint64_t* dt, uint64_t* lt, struct kvm_segment* seg) { uint16_t index = seg->selector >> 3; uint64_t limit = seg->g ? seg->limit >> 12 : seg->limit; uint64_t sd = (limit & 0xffff) | (seg->base & 0xffffff) << 16 | (uint64_t)seg->type << 40 | (uint64_t)seg->s << 44 | (uint64_t)seg->dpl << 45 | (uint64_t)seg->present << 47 | (limit & 0xf0000ULL) << 48 | (uint64_t)seg->avl << 52 | (uint64_t)seg->l << 53 | (uint64_t)seg->db << 54 | (uint64_t)seg->g << 55 | (seg->base & 0xff000000ULL) << 56; dt[index] = sd; lt[index] = sd; } static void fill_segment_descriptor_dword(uint64_t* dt, uint64_t* lt, struct kvm_segment* seg) { fill_segment_descriptor(dt, lt, seg); uint16_t index = seg->selector >> 3; dt[index + 1] = 0; lt[index + 1] = 0; } static void setup_syscall_msrs(int cpufd, uint16_t sel_cs, uint16_t sel_cs_cpl3) { char buf[sizeof(struct kvm_msrs) + 5 * sizeof(struct kvm_msr_entry)]; memset(buf, 0, sizeof(buf)); struct kvm_msrs* msrs = (struct kvm_msrs*)buf; struct kvm_msr_entry* entries = msrs->entries; msrs->nmsrs = 5; entries[0].index = X86_MSR_IA32_SYSENTER_CS; entries[0].data = sel_cs; entries[1].index = X86_MSR_IA32_SYSENTER_ESP; entries[1].data = X86_ADDR_STACK0; entries[2].index = X86_MSR_IA32_SYSENTER_EIP; entries[2].data = X86_ADDR_VAR_SYSEXIT; entries[3].index = X86_MSR_IA32_STAR; entries[3].data = ((uint64_t)sel_cs << 32) | ((uint64_t)sel_cs_cpl3 << 48); entries[4].index = X86_MSR_IA32_LSTAR; entries[4].data = X86_ADDR_VAR_SYSRET; ioctl(cpufd, KVM_SET_MSRS, msrs); } static void setup_32bit_idt(struct kvm_sregs* sregs, char* host_mem, uintptr_t guest_mem) { sregs->idt.base = guest_mem + X86_ADDR_VAR_IDT; sregs->idt.limit = 0x1ff; uint64_t* idt = (uint64_t*)(host_mem + sregs->idt.base); for (int i = 0; i < 32; i++) { struct kvm_segment gate; gate.selector = i << 3; switch (i % 6) { case 0: gate.type = 6; gate.base = X86_SEL_CS16; break; case 1: gate.type = 7; gate.base = X86_SEL_CS16; break; case 2: gate.type = 3; gate.base = X86_SEL_TGATE16; break; case 3: gate.type = 14; gate.base = X86_SEL_CS32; break; case 4: gate.type = 15; gate.base = X86_SEL_CS32; break; case 5: gate.type = 11; gate.base = X86_SEL_TGATE32; break; } gate.limit = guest_mem + X86_ADDR_VAR_USER_CODE2; gate.present = 1; gate.dpl = 0; gate.s = 0; gate.g = 0; gate.db = 0; gate.l = 0; gate.avl = 0; fill_segment_descriptor(idt, idt, &gate); } } static void setup_64bit_idt(struct kvm_sregs* sregs, char* host_mem, uintptr_t guest_mem) { sregs->idt.base = guest_mem + X86_ADDR_VAR_IDT; sregs->idt.limit = 0x1ff; uint64_t* idt = (uint64_t*)(host_mem + sregs->idt.base); for (int i = 0; i < 32; i++) { struct kvm_segment gate; gate.selector = (i * 2) << 3; gate.type = (i & 1) ? 14 : 15; gate.base = X86_SEL_CS64; gate.limit = guest_mem + X86_ADDR_VAR_USER_CODE2; gate.present = 1; gate.dpl = 0; gate.s = 0; gate.g = 0; gate.db = 0; gate.l = 0; gate.avl = 0; fill_segment_descriptor_dword(idt, idt, &gate); } } #define MEM_REGION_FLAG_USER_CODE (1 << 0) #define MEM_REGION_FLAG_DIRTY_LOG (1 << 1) #define MEM_REGION_FLAG_READONLY (1 << 2) #define MEM_REGION_FLAG_EXECUTOR_CODE (1 << 3) #define MEM_REGION_FLAG_GPA0 (1 << 5) #define MEM_REGION_FLAG_NO_HOST_MEM (1 << 6) struct mem_region { uint64_t gpa; int pages; uint32_t flags; }; static const struct mem_region syzos_mem_regions[] = { {X86_SYZOS_ADDR_ZERO, 48, MEM_REGION_FLAG_GPA0}, {X86_SYZOS_ADDR_SMRAM, 10, 0}, {X86_SYZOS_ADDR_EXIT, 1, MEM_REGION_FLAG_NO_HOST_MEM}, {X86_SYZOS_ADDR_DIRTY_PAGES, 2, MEM_REGION_FLAG_DIRTY_LOG}, {X86_SYZOS_ADDR_USER_CODE, KVM_MAX_VCPU, MEM_REGION_FLAG_READONLY | MEM_REGION_FLAG_USER_CODE}, {SYZOS_ADDR_EXECUTOR_CODE, 4, MEM_REGION_FLAG_READONLY | MEM_REGION_FLAG_EXECUTOR_CODE}, {X86_SYZOS_ADDR_SCRATCH_CODE, 1, 0}, {X86_SYZOS_ADDR_STACK_BOTTOM, 1, 0}, {X86_SYZOS_PER_VCPU_REGIONS_BASE, (KVM_MAX_VCPU * X86_SYZOS_L1_VCPU_REGION_SIZE) / KVM_PAGE_SIZE, 0}, {X86_SYZOS_ADDR_IOAPIC, 1, 0}, }; struct kvm_syz_vm { int vmfd; int next_cpu_id; void* host_mem; size_t total_pages; void* user_text; void* gpa0_mem; }; #define X86_NUM_IDT_ENTRIES 256 static void syzos_setup_idt(struct kvm_syz_vm* vm, struct kvm_sregs* sregs) { sregs->idt.base = X86_SYZOS_ADDR_VAR_IDT; sregs->idt.limit = (X86_NUM_IDT_ENTRIES * sizeof(struct idt_entry_64)) - 1; volatile struct idt_entry_64* idt = (volatile struct idt_entry_64*)((uint64_t)vm->host_mem + sregs->idt.base); uint64_t handler_addr = executor_fn_guest_addr(dummy_null_handler); for (int i = 0; i < X86_NUM_IDT_ENTRIES; i++) { idt[i].offset_low = (uint16_t)(handler_addr & 0xFFFF); idt[i].selector = X86_SYZOS_SEL_CODE; idt[i].ist = 0; idt[i].type_attr = 0x8E; idt[i].offset_mid = (uint16_t)((handler_addr >> 16) & 0xFFFF); idt[i].offset_high = (uint32_t)((handler_addr >> 32) & 0xFFFFFFFF); idt[i].reserved = 0; } } struct kvm_text { uintptr_t typ; const void* text; uintptr_t size; }; struct kvm_opt { uint64_t typ; uint64_t val; }; #define PAGE_MASK GENMASK_ULL(51, 12) typedef struct { uint64_t next_page; uint64_t last_page; } page_alloc_t; static uint64_t pg_alloc(page_alloc_t* alloc) { if (alloc->next_page >= alloc->last_page) exit(1); uint64_t page = alloc->next_page; alloc->next_page += KVM_PAGE_SIZE; return page; } static void map_4k_page(uint64_t host_mem, page_alloc_t* alloc, uint64_t gpa) { uint64_t* pml4 = (uint64_t*)(host_mem + X86_SYZOS_ADDR_PML4); uint64_t pml4_idx = (gpa >> 39) & 0x1FF; if (pml4[pml4_idx] == 0) pml4[pml4_idx] = X86_PDE64_PRESENT | X86_PDE64_RW | pg_alloc(alloc); uint64_t* pdpt = (uint64_t*)(host_mem + (pml4[pml4_idx] & PAGE_MASK)); uint64_t pdpt_idx = (gpa >> 30) & 0x1FF; if (pdpt[pdpt_idx] == 0) pdpt[pdpt_idx] = X86_PDE64_PRESENT | X86_PDE64_RW | pg_alloc(alloc); uint64_t* pd = (uint64_t*)(host_mem + (pdpt[pdpt_idx] & PAGE_MASK)); uint64_t pd_idx = (gpa >> 21) & 0x1FF; if (pd[pd_idx] == 0) pd[pd_idx] = X86_PDE64_PRESENT | X86_PDE64_RW | pg_alloc(alloc); uint64_t* pt = (uint64_t*)(host_mem + (pd[pd_idx] & PAGE_MASK)); uint64_t pt_idx = (gpa >> 12) & 0x1FF; pt[pt_idx] = (gpa & PAGE_MASK) | X86_PDE64_PRESENT | X86_PDE64_RW; } static int map_4k_region(uint64_t host_mem, page_alloc_t* alloc, uint64_t gpa_start, int num_pages) { for (int i = 0; i < num_pages; i++) map_4k_page(host_mem, alloc, gpa_start + (i * KVM_PAGE_SIZE)); return num_pages; } static void setup_pg_table(struct kvm_syz_vm* vm) { int total = vm->total_pages; uint64_t host_mem = (uint64_t)vm->gpa0_mem; page_alloc_t alloc = {.next_page = X86_SYZOS_ADDR_PT_POOL, .last_page = X86_SYZOS_ADDR_PT_POOL + 32 * KVM_PAGE_SIZE}; for (uint64_t i = 0; i < (alloc.last_page - alloc.next_page); i += KVM_PAGE_SIZE) memset((void*)(host_mem + alloc.next_page + i), 0, KVM_PAGE_SIZE); for (size_t i = 0; i < sizeof(syzos_mem_regions) / sizeof(syzos_mem_regions[0]); i++) total -= map_4k_region(host_mem, &alloc, syzos_mem_regions[i].gpa, syzos_mem_regions[i].pages); map_4k_region(host_mem, &alloc, X86_SYZOS_ADDR_UNUSED, total); } struct gdt_entry { uint16_t limit_low; uint16_t base_low; uint8_t base_mid; uint8_t access; uint8_t limit_high_and_flags; uint8_t base_high; } __attribute__((packed)); static void setup_gdt_64(struct gdt_entry* gdt) { gdt[0] = (struct gdt_entry){0}; gdt[X86_SYZOS_SEL_CODE >> 3] = (struct gdt_entry){ .limit_low = 0xFFFF, .base_low = 0, .base_mid = 0, .access = 0x9A, .limit_high_and_flags = 0xAF, .base_high = 0}; gdt[X86_SYZOS_SEL_DATA >> 3] = (struct gdt_entry){ .limit_low = 0xFFFF, .base_low = (uint16_t)(X86_SYZOS_ADDR_VAR_TSS & 0xFFFF), .base_mid = (uint8_t)((X86_SYZOS_ADDR_VAR_TSS >> 16) & 0xFF), .access = 0x92, .limit_high_and_flags = 0xCF, .base_high = (uint8_t)((X86_SYZOS_ADDR_VAR_TSS >> 24) & 0xFF)}; gdt[X86_SYZOS_SEL_TSS64 >> 3] = (struct gdt_entry){ .limit_low = 0x67, .base_low = 0, .base_mid = 0, .access = 0x89, .limit_high_and_flags = 0x00, .base_high = 0}; } static void setup_gdt_ldt_pg(struct kvm_syz_vm* vm, int cpufd) { struct kvm_sregs sregs; ioctl(cpufd, KVM_GET_SREGS, &sregs); sregs.gdt.base = X86_SYZOS_ADDR_GDT; sregs.gdt.limit = 5 * sizeof(struct gdt_entry) - 1; struct gdt_entry* gdt = (struct gdt_entry*)((uint64_t)vm->host_mem + sregs.gdt.base); struct kvm_segment seg_cs64; memset(&seg_cs64, 0, sizeof(seg_cs64)); seg_cs64.selector = X86_SYZOS_SEL_CODE; seg_cs64.type = 11; seg_cs64.base = 0; seg_cs64.limit = 0xFFFFFFFFu; seg_cs64.present = 1; seg_cs64.s = 1; seg_cs64.g = 1; seg_cs64.l = 1; sregs.cs = seg_cs64; struct kvm_segment seg_ds64; memset(&seg_ds64, 0, sizeof(struct kvm_segment)); seg_ds64.selector = X86_SYZOS_SEL_DATA; seg_ds64.type = 3; seg_ds64.limit = 0xFFFFFFFFu; seg_ds64.present = 1; seg_ds64.s = 1; seg_ds64.g = 1; seg_ds64.db = 1; sregs.ds = seg_ds64; sregs.es = seg_ds64; sregs.fs = seg_ds64; sregs.gs = seg_ds64; sregs.ss = seg_ds64; struct kvm_segment seg_tr; memset(&seg_tr, 0, sizeof(seg_tr)); seg_tr.selector = X86_SYZOS_SEL_TSS64; seg_tr.type = 11; seg_tr.base = X86_SYZOS_ADDR_VAR_TSS; seg_tr.limit = 0x67; seg_tr.present = 1; seg_tr.s = 0; sregs.tr = seg_tr; volatile uint8_t* l1_tss = (volatile uint8_t*)((uint64_t)vm->host_mem + X86_SYZOS_ADDR_VAR_TSS); memset((void*)l1_tss, 0, 104); *(volatile uint64_t*)(l1_tss + 4) = X86_SYZOS_ADDR_STACK0; setup_gdt_64(gdt); syzos_setup_idt(vm, &sregs); setup_pg_table(vm); sregs.cr0 = X86_CR0_PE | X86_CR0_NE | X86_CR0_PG; sregs.cr4 |= X86_CR4_PAE | X86_CR4_OSFXSR; sregs.efer |= (X86_EFER_LME | X86_EFER_LMA | X86_EFER_NXE); sregs.cr3 = X86_ADDR_PML4; ioctl(cpufd, KVM_SET_SREGS, &sregs); } static void setup_cpuid(int cpufd) { int kvmfd = open("/dev/kvm", O_RDWR); char buf[sizeof(struct kvm_cpuid2) + 128 * sizeof(struct kvm_cpuid_entry2)]; memset(buf, 0, sizeof(buf)); struct kvm_cpuid2* cpuid = (struct kvm_cpuid2*)buf; cpuid->nent = 128; ioctl(kvmfd, KVM_GET_SUPPORTED_CPUID, cpuid); ioctl(cpufd, KVM_SET_CPUID2, cpuid); close(kvmfd); } #define KVM_SETUP_PAGING (1 << 0) #define KVM_SETUP_PAE (1 << 1) #define KVM_SETUP_PROTECTED (1 << 2) #define KVM_SETUP_CPL3 (1 << 3) #define KVM_SETUP_VIRT86 (1 << 4) #define KVM_SETUP_SMM (1 << 5) #define KVM_SETUP_VM (1 << 6) static volatile long syz_kvm_setup_cpu(volatile long a0, volatile long a1, volatile long a2, volatile long a3, volatile long a4, volatile long a5, volatile long a6, volatile long a7) { const int vmfd = a0; const int cpufd = a1; char* const host_mem = (char*)a2; const struct kvm_text* const text_array_ptr = (struct kvm_text*)a3; const uintptr_t text_count = a4; const uintptr_t flags = a5; const struct kvm_opt* const opt_array_ptr = (struct kvm_opt*)a6; uintptr_t opt_count = a7; const uintptr_t page_size = 4 << 10; const uintptr_t ioapic_page = 10; const uintptr_t guest_mem_size = 24 * page_size; const uintptr_t guest_mem = 0; (void)text_count; int text_type = text_array_ptr[0].typ; const void* text = text_array_ptr[0].text; uintptr_t text_size = text_array_ptr[0].size; for (uintptr_t i = 0; i < guest_mem_size / page_size; i++) { struct kvm_userspace_memory_region memreg; memreg.slot = i; memreg.flags = 0; memreg.guest_phys_addr = guest_mem + i * page_size; if (i == ioapic_page) memreg.guest_phys_addr = 0xfec00000; memreg.memory_size = page_size; memreg.userspace_addr = (uintptr_t)host_mem + i * page_size; ioctl(vmfd, KVM_SET_USER_MEMORY_REGION, &memreg); } struct kvm_userspace_memory_region memreg; memreg.slot = 1 + (1 << 16); memreg.flags = 0; memreg.guest_phys_addr = 0x30000; memreg.memory_size = 64 << 10; memreg.userspace_addr = (uintptr_t)host_mem; ioctl(vmfd, KVM_SET_USER_MEMORY_REGION, &memreg); struct kvm_sregs sregs; if (ioctl(cpufd, KVM_GET_SREGS, &sregs)) return -1; struct kvm_regs regs; memset(®s, 0, sizeof(regs)); regs.rip = guest_mem + X86_ADDR_TEXT; regs.rsp = X86_ADDR_STACK0; sregs.gdt.base = guest_mem + X86_ADDR_GDT; sregs.gdt.limit = 256 * sizeof(uint64_t) - 1; uint64_t* gdt = (uint64_t*)(host_mem + sregs.gdt.base); struct kvm_segment seg_ldt; memset(&seg_ldt, 0, sizeof(seg_ldt)); seg_ldt.selector = X86_SEL_LDT; seg_ldt.type = 2; seg_ldt.base = guest_mem + X86_ADDR_LDT; seg_ldt.limit = 256 * sizeof(uint64_t) - 1; seg_ldt.present = 1; seg_ldt.dpl = 0; seg_ldt.s = 0; seg_ldt.g = 0; seg_ldt.db = 1; seg_ldt.l = 0; sregs.ldt = seg_ldt; uint64_t* ldt = (uint64_t*)(host_mem + sregs.ldt.base); struct kvm_segment seg_cs16; memset(&seg_cs16, 0, sizeof(seg_cs16)); seg_cs16.selector = X86_SEL_CS16; seg_cs16.type = 11; seg_cs16.base = 0; seg_cs16.limit = 0xfffff; seg_cs16.present = 1; seg_cs16.dpl = 0; seg_cs16.s = 1; seg_cs16.g = 0; seg_cs16.db = 0; seg_cs16.l = 0; struct kvm_segment seg_ds16 = seg_cs16; seg_ds16.selector = X86_SEL_DS16; seg_ds16.type = 3; struct kvm_segment seg_cs16_cpl3 = seg_cs16; seg_cs16_cpl3.selector = X86_SEL_CS16_CPL3; seg_cs16_cpl3.dpl = 3; struct kvm_segment seg_ds16_cpl3 = seg_ds16; seg_ds16_cpl3.selector = X86_SEL_DS16_CPL3; seg_ds16_cpl3.dpl = 3; struct kvm_segment seg_cs32 = seg_cs16; seg_cs32.selector = X86_SEL_CS32; seg_cs32.db = 1; struct kvm_segment seg_ds32 = seg_ds16; seg_ds32.selector = X86_SEL_DS32; seg_ds32.db = 1; struct kvm_segment seg_cs32_cpl3 = seg_cs32; seg_cs32_cpl3.selector = X86_SEL_CS32_CPL3; seg_cs32_cpl3.dpl = 3; struct kvm_segment seg_ds32_cpl3 = seg_ds32; seg_ds32_cpl3.selector = X86_SEL_DS32_CPL3; seg_ds32_cpl3.dpl = 3; struct kvm_segment seg_cs64 = seg_cs16; seg_cs64.selector = X86_SEL_CS64; seg_cs64.l = 1; struct kvm_segment seg_ds64 = seg_ds32; seg_ds64.selector = X86_SEL_DS64; struct kvm_segment seg_cs64_cpl3 = seg_cs64; seg_cs64_cpl3.selector = X86_SEL_CS64_CPL3; seg_cs64_cpl3.dpl = 3; struct kvm_segment seg_ds64_cpl3 = seg_ds64; seg_ds64_cpl3.selector = X86_SEL_DS64_CPL3; seg_ds64_cpl3.dpl = 3; struct kvm_segment seg_tss32; memset(&seg_tss32, 0, sizeof(seg_tss32)); seg_tss32.selector = X86_SEL_TSS32; seg_tss32.type = 9; seg_tss32.base = X86_ADDR_VAR_TSS32; seg_tss32.limit = 0x1ff; seg_tss32.present = 1; seg_tss32.dpl = 0; seg_tss32.s = 0; seg_tss32.g = 0; seg_tss32.db = 0; seg_tss32.l = 0; struct kvm_segment seg_tss32_2 = seg_tss32; seg_tss32_2.selector = X86_SEL_TSS32_2; seg_tss32_2.base = X86_ADDR_VAR_TSS32_2; struct kvm_segment seg_tss32_cpl3 = seg_tss32; seg_tss32_cpl3.selector = X86_SEL_TSS32_CPL3; seg_tss32_cpl3.base = X86_ADDR_VAR_TSS32_CPL3; struct kvm_segment seg_tss32_vm86 = seg_tss32; seg_tss32_vm86.selector = X86_SEL_TSS32_VM86; seg_tss32_vm86.base = X86_ADDR_VAR_TSS32_VM86; struct kvm_segment seg_tss16 = seg_tss32; seg_tss16.selector = X86_SEL_TSS16; seg_tss16.base = X86_ADDR_VAR_TSS16; seg_tss16.limit = 0xff; seg_tss16.type = 1; struct kvm_segment seg_tss16_2 = seg_tss16; seg_tss16_2.selector = X86_SEL_TSS16_2; seg_tss16_2.base = X86_ADDR_VAR_TSS16_2; seg_tss16_2.dpl = 0; struct kvm_segment seg_tss16_cpl3 = seg_tss16; seg_tss16_cpl3.selector = X86_SEL_TSS16_CPL3; seg_tss16_cpl3.base = X86_ADDR_VAR_TSS16_CPL3; seg_tss16_cpl3.dpl = 3; struct kvm_segment seg_tss64 = seg_tss32; seg_tss64.selector = X86_SEL_TSS64; seg_tss64.base = X86_ADDR_VAR_TSS64; seg_tss64.limit = 0x1ff; struct kvm_segment seg_tss64_cpl3 = seg_tss64; seg_tss64_cpl3.selector = X86_SEL_TSS64_CPL3; seg_tss64_cpl3.base = X86_ADDR_VAR_TSS64_CPL3; seg_tss64_cpl3.dpl = 3; struct kvm_segment seg_cgate16; memset(&seg_cgate16, 0, sizeof(seg_cgate16)); seg_cgate16.selector = X86_SEL_CGATE16; seg_cgate16.type = 4; seg_cgate16.base = X86_SEL_CS16 | (2 << 16); seg_cgate16.limit = X86_ADDR_VAR_USER_CODE2; seg_cgate16.present = 1; seg_cgate16.dpl = 0; seg_cgate16.s = 0; seg_cgate16.g = 0; seg_cgate16.db = 0; seg_cgate16.l = 0; seg_cgate16.avl = 0; struct kvm_segment seg_tgate16 = seg_cgate16; seg_tgate16.selector = X86_SEL_TGATE16; seg_tgate16.type = 3; seg_cgate16.base = X86_SEL_TSS16_2; seg_tgate16.limit = 0; struct kvm_segment seg_cgate32 = seg_cgate16; seg_cgate32.selector = X86_SEL_CGATE32; seg_cgate32.type = 12; seg_cgate32.base = X86_SEL_CS32 | (2 << 16); struct kvm_segment seg_tgate32 = seg_cgate32; seg_tgate32.selector = X86_SEL_TGATE32; seg_tgate32.type = 11; seg_tgate32.base = X86_SEL_TSS32_2; seg_tgate32.limit = 0; struct kvm_segment seg_cgate64 = seg_cgate16; seg_cgate64.selector = X86_SEL_CGATE64; seg_cgate64.type = 12; seg_cgate64.base = X86_SEL_CS64; int kvmfd = open("/dev/kvm", O_RDWR); char buf[sizeof(struct kvm_cpuid2) + 128 * sizeof(struct kvm_cpuid_entry2)]; memset(buf, 0, sizeof(buf)); struct kvm_cpuid2* cpuid = (struct kvm_cpuid2*)buf; cpuid->nent = 128; ioctl(kvmfd, KVM_GET_SUPPORTED_CPUID, cpuid); ioctl(cpufd, KVM_SET_CPUID2, cpuid); close(kvmfd); const char* text_prefix = 0; int text_prefix_size = 0; char* host_text = host_mem + X86_ADDR_TEXT; if (text_type == 8) { if (flags & KVM_SETUP_SMM) { if (flags & KVM_SETUP_PROTECTED) { sregs.cs = seg_cs16; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds16; sregs.cr0 |= X86_CR0_PE; } else { sregs.cs.selector = 0; sregs.cs.base = 0; } *(host_mem + X86_ADDR_TEXT) = 0xf4; host_text = host_mem + 0x8000; ioctl(cpufd, KVM_SMI, 0); } else if (flags & KVM_SETUP_VIRT86) { sregs.cs = seg_cs32; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32; sregs.cr0 |= X86_CR0_PE; sregs.efer |= X86_EFER_SCE; setup_syscall_msrs(cpufd, X86_SEL_CS32, X86_SEL_CS32_CPL3); setup_32bit_idt(&sregs, host_mem, guest_mem); if (flags & KVM_SETUP_PAGING) { uint64_t pd_addr = guest_mem + X86_ADDR_PD; uint64_t* pd = (uint64_t*)(host_mem + X86_ADDR_PD); pd[0] = X86_PDE32_PRESENT | X86_PDE32_RW | X86_PDE32_USER | X86_PDE32_PS; sregs.cr3 = pd_addr; sregs.cr4 |= X86_CR4_PSE; text_prefix = kvm_asm32_paged_vm86; text_prefix_size = sizeof(kvm_asm32_paged_vm86) - 1; } else { text_prefix = kvm_asm32_vm86; text_prefix_size = sizeof(kvm_asm32_vm86) - 1; } } else { sregs.cs.selector = 0; sregs.cs.base = 0; } } else if (text_type == 16) { if (flags & KVM_SETUP_CPL3) { sregs.cs = seg_cs16; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds16; text_prefix = kvm_asm16_cpl3; text_prefix_size = sizeof(kvm_asm16_cpl3) - 1; } else { sregs.cr0 |= X86_CR0_PE; sregs.cs = seg_cs16; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds16; } } else if (text_type == 32) { sregs.cr0 |= X86_CR0_PE; sregs.efer |= X86_EFER_SCE; setup_syscall_msrs(cpufd, X86_SEL_CS32, X86_SEL_CS32_CPL3); setup_32bit_idt(&sregs, host_mem, guest_mem); if (flags & KVM_SETUP_SMM) { sregs.cs = seg_cs32; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32; *(host_mem + X86_ADDR_TEXT) = 0xf4; host_text = host_mem + 0x8000; ioctl(cpufd, KVM_SMI, 0); } else if (flags & KVM_SETUP_PAGING) { sregs.cs = seg_cs32; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32; uint64_t pd_addr = guest_mem + X86_ADDR_PD; uint64_t* pd = (uint64_t*)(host_mem + X86_ADDR_PD); pd[0] = X86_PDE32_PRESENT | X86_PDE32_RW | X86_PDE32_USER | X86_PDE32_PS; sregs.cr3 = pd_addr; sregs.cr4 |= X86_CR4_PSE; text_prefix = kvm_asm32_paged; text_prefix_size = sizeof(kvm_asm32_paged) - 1; } else if (flags & KVM_SETUP_CPL3) { sregs.cs = seg_cs32_cpl3; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32_cpl3; } else { sregs.cs = seg_cs32; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32; } } else { sregs.efer |= X86_EFER_LME | X86_EFER_SCE; sregs.cr0 |= X86_CR0_PE; setup_syscall_msrs(cpufd, X86_SEL_CS64, X86_SEL_CS64_CPL3); setup_64bit_idt(&sregs, host_mem, guest_mem); sregs.cs = seg_cs32; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32; uint64_t pml4_addr = guest_mem + X86_ADDR_PML4; uint64_t* pml4 = (uint64_t*)(host_mem + X86_ADDR_PML4); uint64_t pdpt_addr = guest_mem + X86_ADDR_PDP; uint64_t* pdpt = (uint64_t*)(host_mem + X86_ADDR_PDP); uint64_t pd_addr = guest_mem + X86_ADDR_PD; uint64_t* pd = (uint64_t*)(host_mem + X86_ADDR_PD); pml4[0] = X86_PDE64_PRESENT | X86_PDE64_RW | X86_PDE64_USER | pdpt_addr; pdpt[0] = X86_PDE64_PRESENT | X86_PDE64_RW | X86_PDE64_USER | pd_addr; pd[0] = X86_PDE64_PRESENT | X86_PDE64_RW | X86_PDE64_USER | X86_PDE64_PS; sregs.cr3 = pml4_addr; sregs.cr4 |= X86_CR4_PAE; if (flags & KVM_SETUP_VM) { sregs.cr0 |= X86_CR0_NE; *((uint64_t*)(host_mem + X86_ADDR_VAR_VMXON_PTR)) = X86_ADDR_VAR_VMXON; *((uint64_t*)(host_mem + X86_ADDR_VAR_VMCS_PTR)) = X86_ADDR_VAR_VMCS; memcpy(host_mem + X86_ADDR_VAR_VMEXIT_CODE, kvm_asm64_vm_exit, sizeof(kvm_asm64_vm_exit) - 1); *((uint64_t*)(host_mem + X86_ADDR_VAR_VMEXIT_PTR)) = X86_ADDR_VAR_VMEXIT_CODE; text_prefix = kvm_asm64_init_vm; text_prefix_size = sizeof(kvm_asm64_init_vm) - 1; } else if (flags & KVM_SETUP_CPL3) { text_prefix = kvm_asm64_cpl3; text_prefix_size = sizeof(kvm_asm64_cpl3) - 1; } else { text_prefix = kvm_asm64_enable_long; text_prefix_size = sizeof(kvm_asm64_enable_long) - 1; } } struct tss16 tss16; memset(&tss16, 0, sizeof(tss16)); tss16.ss0 = tss16.ss1 = tss16.ss2 = X86_SEL_DS16; tss16.sp0 = tss16.sp1 = tss16.sp2 = X86_ADDR_STACK0; tss16.ip = X86_ADDR_VAR_USER_CODE2; tss16.flags = (1 << 1); tss16.cs = X86_SEL_CS16; tss16.es = tss16.ds = tss16.ss = X86_SEL_DS16; tss16.ldt = X86_SEL_LDT; struct tss16* tss16_addr = (struct tss16*)(host_mem + seg_tss16_2.base); memcpy(tss16_addr, &tss16, sizeof(tss16)); memset(&tss16, 0, sizeof(tss16)); tss16.ss0 = tss16.ss1 = tss16.ss2 = X86_SEL_DS16; tss16.sp0 = tss16.sp1 = tss16.sp2 = X86_ADDR_STACK0; tss16.ip = X86_ADDR_VAR_USER_CODE2; tss16.flags = (1 << 1); tss16.cs = X86_SEL_CS16_CPL3; tss16.es = tss16.ds = tss16.ss = X86_SEL_DS16_CPL3; tss16.ldt = X86_SEL_LDT; struct tss16* tss16_cpl3_addr = (struct tss16*)(host_mem + seg_tss16_cpl3.base); memcpy(tss16_cpl3_addr, &tss16, sizeof(tss16)); struct tss32 tss32; memset(&tss32, 0, sizeof(tss32)); tss32.ss0 = tss32.ss1 = tss32.ss2 = X86_SEL_DS32; tss32.sp0 = tss32.sp1 = tss32.sp2 = X86_ADDR_STACK0; tss32.ip = X86_ADDR_VAR_USER_CODE; tss32.flags = (1 << 1) | (1 << 17); tss32.ldt = X86_SEL_LDT; tss32.cr3 = sregs.cr3; tss32.io_bitmap = offsetof(struct tss32, io_bitmap); struct tss32* tss32_addr = (struct tss32*)(host_mem + seg_tss32_vm86.base); memcpy(tss32_addr, &tss32, sizeof(tss32)); memset(&tss32, 0, sizeof(tss32)); tss32.ss0 = tss32.ss1 = tss32.ss2 = X86_SEL_DS32; tss32.sp0 = tss32.sp1 = tss32.sp2 = X86_ADDR_STACK0; tss32.ip = X86_ADDR_VAR_USER_CODE; tss32.flags = (1 << 1); tss32.cr3 = sregs.cr3; tss32.es = tss32.ds = tss32.ss = tss32.gs = tss32.fs = X86_SEL_DS32; tss32.cs = X86_SEL_CS32; tss32.ldt = X86_SEL_LDT; tss32.cr3 = sregs.cr3; tss32.io_bitmap = offsetof(struct tss32, io_bitmap); struct tss32* tss32_cpl3_addr = (struct tss32*)(host_mem + seg_tss32_2.base); memcpy(tss32_cpl3_addr, &tss32, sizeof(tss32)); struct tss64 tss64; memset(&tss64, 0, sizeof(tss64)); tss64.rsp[0] = X86_ADDR_STACK0; tss64.rsp[1] = X86_ADDR_STACK0; tss64.rsp[2] = X86_ADDR_STACK0; tss64.io_bitmap = offsetof(struct tss64, io_bitmap); struct tss64* tss64_addr = (struct tss64*)(host_mem + seg_tss64.base); memcpy(tss64_addr, &tss64, sizeof(tss64)); memset(&tss64, 0, sizeof(tss64)); tss64.rsp[0] = X86_ADDR_STACK0; tss64.rsp[1] = X86_ADDR_STACK0; tss64.rsp[2] = X86_ADDR_STACK0; tss64.io_bitmap = offsetof(struct tss64, io_bitmap); struct tss64* tss64_cpl3_addr = (struct tss64*)(host_mem + seg_tss64_cpl3.base); memcpy(tss64_cpl3_addr, &tss64, sizeof(tss64)); if (text_size > 1000) text_size = 1000; if (text_prefix) { memcpy(host_text, text_prefix, text_prefix_size); void* patch = memmem(host_text, text_prefix_size, "\xde\xc0\xad\x0b", 4); if (patch) *((uint32_t*)patch) = guest_mem + X86_ADDR_TEXT + ((char*)patch - host_text) + 6; uint16_t magic = X86_PREFIX_SIZE; patch = memmem(host_text, text_prefix_size, &magic, sizeof(magic)); if (patch) *((uint16_t*)patch) = guest_mem + X86_ADDR_TEXT + text_prefix_size; } memcpy((void*)(host_text + text_prefix_size), text, text_size); *(host_text + text_prefix_size + text_size) = 0xf4; memcpy(host_mem + X86_ADDR_VAR_USER_CODE, text, text_size); *(host_mem + X86_ADDR_VAR_USER_CODE + text_size) = 0xf4; *(host_mem + X86_ADDR_VAR_HLT) = 0xf4; memcpy(host_mem + X86_ADDR_VAR_SYSRET, "\x0f\x07\xf4", 3); memcpy(host_mem + X86_ADDR_VAR_SYSEXIT, "\x0f\x35\xf4", 3); *(uint64_t*)(host_mem + X86_ADDR_VAR_VMWRITE_FLD) = 0; *(uint64_t*)(host_mem + X86_ADDR_VAR_VMWRITE_VAL) = 0; if (opt_count > 2) opt_count = 2; for (uintptr_t i = 0; i < opt_count; i++) { uint64_t typ = opt_array_ptr[i].typ; uint64_t val = opt_array_ptr[i].val; switch (typ % 9) { case 0: sregs.cr0 ^= val & (X86_CR0_MP | X86_CR0_EM | X86_CR0_ET | X86_CR0_NE | X86_CR0_WP | X86_CR0_AM | X86_CR0_NW | X86_CR0_CD); break; case 1: sregs.cr4 ^= val & (X86_CR4_VME | X86_CR4_PVI | X86_CR4_TSD | X86_CR4_DE | X86_CR4_MCE | X86_CR4_PGE | X86_CR4_PCE | X86_CR4_OSFXSR | X86_CR4_OSXMMEXCPT | X86_CR4_UMIP | X86_CR4_VMXE | X86_CR4_SMXE | X86_CR4_FSGSBASE | X86_CR4_PCIDE | X86_CR4_OSXSAVE | X86_CR4_SMEP | X86_CR4_SMAP | X86_CR4_PKE); break; case 2: sregs.efer ^= val & (X86_EFER_SCE | X86_EFER_NXE | X86_EFER_SVME | X86_EFER_LMSLE | X86_EFER_FFXSR | X86_EFER_TCE); break; case 3: val &= ((1 << 8) | (1 << 9) | (1 << 10) | (1 << 12) | (1 << 13) | (1 << 14) | (1 << 15) | (1 << 18) | (1 << 19) | (1 << 20) | (1 << 21)); regs.rflags ^= val; tss16_addr->flags ^= val; tss16_cpl3_addr->flags ^= val; tss32_addr->flags ^= val; tss32_cpl3_addr->flags ^= val; break; case 4: seg_cs16.type = val & 0xf; seg_cs32.type = val & 0xf; seg_cs64.type = val & 0xf; break; case 5: seg_cs16_cpl3.type = val & 0xf; seg_cs32_cpl3.type = val & 0xf; seg_cs64_cpl3.type = val & 0xf; break; case 6: seg_ds16.type = val & 0xf; seg_ds32.type = val & 0xf; seg_ds64.type = val & 0xf; break; case 7: seg_ds16_cpl3.type = val & 0xf; seg_ds32_cpl3.type = val & 0xf; seg_ds64_cpl3.type = val & 0xf; break; case 8: *(uint64_t*)(host_mem + X86_ADDR_VAR_VMWRITE_FLD) = (val & 0xffff); *(uint64_t*)(host_mem + X86_ADDR_VAR_VMWRITE_VAL) = (val >> 16); break; default: exit(1); } } regs.rflags |= 2; fill_segment_descriptor(gdt, ldt, &seg_ldt); fill_segment_descriptor(gdt, ldt, &seg_cs16); fill_segment_descriptor(gdt, ldt, &seg_ds16); fill_segment_descriptor(gdt, ldt, &seg_cs16_cpl3); fill_segment_descriptor(gdt, ldt, &seg_ds16_cpl3); fill_segment_descriptor(gdt, ldt, &seg_cs32); fill_segment_descriptor(gdt, ldt, &seg_ds32); fill_segment_descriptor(gdt, ldt, &seg_cs32_cpl3); fill_segment_descriptor(gdt, ldt, &seg_ds32_cpl3); fill_segment_descriptor(gdt, ldt, &seg_cs64); fill_segment_descriptor(gdt, ldt, &seg_ds64); fill_segment_descriptor(gdt, ldt, &seg_cs64_cpl3); fill_segment_descriptor(gdt, ldt, &seg_ds64_cpl3); fill_segment_descriptor(gdt, ldt, &seg_tss32); fill_segment_descriptor(gdt, ldt, &seg_tss32_2); fill_segment_descriptor(gdt, ldt, &seg_tss32_cpl3); fill_segment_descriptor(gdt, ldt, &seg_tss32_vm86); fill_segment_descriptor(gdt, ldt, &seg_tss16); fill_segment_descriptor(gdt, ldt, &seg_tss16_2); fill_segment_descriptor(gdt, ldt, &seg_tss16_cpl3); fill_segment_descriptor_dword(gdt, ldt, &seg_tss64); fill_segment_descriptor_dword(gdt, ldt, &seg_tss64_cpl3); fill_segment_descriptor(gdt, ldt, &seg_cgate16); fill_segment_descriptor(gdt, ldt, &seg_tgate16); fill_segment_descriptor(gdt, ldt, &seg_cgate32); fill_segment_descriptor(gdt, ldt, &seg_tgate32); fill_segment_descriptor_dword(gdt, ldt, &seg_cgate64); if (ioctl(cpufd, KVM_SET_SREGS, &sregs)) return -1; if (ioctl(cpufd, KVM_SET_REGS, ®s)) return -1; return 0; } #define RFLAGS_1_BIT (1ULL << 1) #define RFLAGS_IF_BIT (1ULL << 9) static void reset_cpu_regs(int cpufd, int cpu_id, size_t text_size) { struct kvm_regs regs; memset(®s, 0, sizeof(regs)); regs.rflags |= RFLAGS_1_BIT | RFLAGS_IF_BIT; regs.rip = executor_fn_guest_addr(guest_main); regs.rsp = X86_SYZOS_ADDR_STACK0; regs.rdi = text_size; regs.rsi = cpu_id; ioctl(cpufd, KVM_SET_REGS, ®s); } static void install_user_code(struct kvm_syz_vm* vm, int cpufd, int cpu_id, const void* text, size_t text_size) { if ((cpu_id < 0) || (cpu_id >= KVM_MAX_VCPU)) return; if (text_size > KVM_PAGE_SIZE) text_size = KVM_PAGE_SIZE; void* target = (void*)((uint64_t)vm->user_text + (KVM_PAGE_SIZE * cpu_id)); memcpy(target, text, text_size); setup_gdt_ldt_pg(vm, cpufd); setup_cpuid(cpufd); reset_cpu_regs(cpufd, cpu_id, text_size); } struct addr_size { void* addr; size_t size; }; static struct addr_size alloc_guest_mem(struct addr_size* free, size_t size) { struct addr_size ret = {.addr = NULL, .size = 0}; if (free->size < size) return ret; ret.addr = free->addr; ret.size = size; free->addr = (void*)((char*)free->addr + size); free->size -= size; return ret; } static void vm_set_user_memory_region(int vmfd, uint32_t slot, uint32_t flags, uint64_t guest_phys_addr, uint64_t memory_size, uint64_t userspace_addr) { struct kvm_userspace_memory_region memreg; memreg.slot = slot; memreg.flags = flags; memreg.guest_phys_addr = guest_phys_addr; memreg.memory_size = memory_size; memreg.userspace_addr = userspace_addr; ioctl(vmfd, KVM_SET_USER_MEMORY_REGION, &memreg); } static void install_syzos_code(void* host_mem, size_t mem_size) { size_t size = (char*)&__stop_guest - (char*)&__start_guest; if (size > mem_size) exit(1); memcpy(host_mem, &__start_guest, size); } static void setup_vm(int vmfd, struct kvm_syz_vm* vm) { struct addr_size allocator = {.addr = vm->host_mem, .size = vm->total_pages * KVM_PAGE_SIZE}; int slot = 0; for (size_t i = 0; i < sizeof(syzos_mem_regions) / sizeof(syzos_mem_regions[0]); i++) { const struct mem_region* r = &syzos_mem_regions[i]; if (r->flags & MEM_REGION_FLAG_NO_HOST_MEM) continue; struct addr_size next = alloc_guest_mem(&allocator, r->pages * KVM_PAGE_SIZE); uint32_t flags = 0; if (r->flags & MEM_REGION_FLAG_DIRTY_LOG) flags |= KVM_MEM_LOG_DIRTY_PAGES; if (r->flags & MEM_REGION_FLAG_READONLY) flags |= KVM_MEM_READONLY; if (r->flags & MEM_REGION_FLAG_USER_CODE) vm->user_text = next.addr; if (r->flags & MEM_REGION_FLAG_GPA0) vm->gpa0_mem = next.addr; if (r->flags & MEM_REGION_FLAG_EXECUTOR_CODE) install_syzos_code(next.addr, next.size); vm_set_user_memory_region(vmfd, slot++, flags, r->gpa, next.size, (uintptr_t)next.addr); } struct addr_size next = alloc_guest_mem(&allocator, allocator.size); vm_set_user_memory_region(vmfd, slot++, 0, X86_SYZOS_ADDR_UNUSED, next.size, (uintptr_t)next.addr); } static long syz_kvm_setup_syzos_vm(volatile long a0, volatile long a1) { const int vmfd = a0; void* host_mem = (void*)a1; struct kvm_syz_vm* ret = (struct kvm_syz_vm*)host_mem; ret->host_mem = (void*)((uint64_t)host_mem + KVM_PAGE_SIZE); ret->total_pages = KVM_GUEST_PAGES - 1; setup_vm(vmfd, ret); ret->vmfd = vmfd; ret->next_cpu_id = 0; return (long)ret; } static long syz_kvm_add_vcpu(volatile long a0, volatile long a1) { struct kvm_syz_vm* vm = (struct kvm_syz_vm*)a0; struct kvm_text* utext = (struct kvm_text*)a1; const void* text = utext->text; size_t text_size = utext->size; if (!vm) { errno = EINVAL; return -1; } if (vm->next_cpu_id == KVM_MAX_VCPU) { errno = ENOMEM; return -1; } int cpu_id = vm->next_cpu_id; int cpufd = ioctl(vm->vmfd, KVM_CREATE_VCPU, cpu_id); if (cpufd == -1) return -1; vm->next_cpu_id++; install_user_code(vm, cpufd, cpu_id, text, text_size); return cpufd; } static void setup_gadgetfs(); static void setup_binderfs(); static void setup_fusectl(); static void sandbox_common_mount_tmpfs(void) { write_file("/proc/sys/fs/mount-max", "100000"); if (mkdir("./syz-tmp", 0777)) exit(1); if (mount("", "./syz-tmp", "tmpfs", 0, NULL)) exit(1); if (mkdir("./syz-tmp/newroot", 0777)) exit(1); if (mkdir("./syz-tmp/newroot/dev", 0700)) exit(1); unsigned bind_mount_flags = MS_BIND | MS_REC | MS_PRIVATE; if (mount("/dev", "./syz-tmp/newroot/dev", NULL, bind_mount_flags, NULL)) exit(1); if (mkdir("./syz-tmp/newroot/proc", 0700)) exit(1); if (mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL)) exit(1); if (mkdir("./syz-tmp/newroot/selinux", 0700)) exit(1); const char* selinux_path = "./syz-tmp/newroot/selinux"; if (mount("/selinux", selinux_path, NULL, bind_mount_flags, NULL)) { if (errno != ENOENT) exit(1); if (mount("/sys/fs/selinux", selinux_path, NULL, bind_mount_flags, NULL) && errno != ENOENT) exit(1); } if (mkdir("./syz-tmp/newroot/sys", 0700)) exit(1); if (mount("/sys", "./syz-tmp/newroot/sys", 0, bind_mount_flags, NULL)) exit(1); if (mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, bind_mount_flags, NULL) && errno != ENOENT) exit(1); if (mount("/sys/fs/smackfs", "./syz-tmp/newroot/sys/fs/smackfs", NULL, bind_mount_flags, NULL) && errno != ENOENT) exit(1); if (mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, bind_mount_flags, NULL) && errno != ENOENT) exit(1); if (mkdir("./syz-tmp/newroot/syz-inputs", 0700)) exit(1); if (mount("/syz-inputs", "./syz-tmp/newroot/syz-inputs", NULL, bind_mount_flags | MS_RDONLY, NULL) && errno != ENOENT) exit(1); if (mkdir("./syz-tmp/pivot", 0777)) exit(1); if (syscall(SYS_pivot_root, "./syz-tmp", "./syz-tmp/pivot")) { if (chdir("./syz-tmp")) exit(1); } else { if (chdir("/")) exit(1); if (umount2("./pivot", MNT_DETACH)) exit(1); } if (chroot("./newroot")) exit(1); if (chdir("/")) exit(1); setup_gadgetfs(); setup_binderfs(); setup_fusectl(); } static void setup_gadgetfs() { if (mkdir("/dev/gadgetfs", 0777)) { } if (mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL)) { } } static void setup_fusectl() { if (mount(0, "/sys/fs/fuse/connections", "fusectl", 0, 0)) { } } static void setup_binderfs() { if (mkdir("/dev/binderfs", 0777)) { } if (mount("binder", "/dev/binderfs", "binder", 0, NULL)) { } } static void loop(); static void sandbox_common() { prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0); if (getppid() == 1) exit(1); int netns = open("/proc/self/ns/net", O_RDONLY); if (netns == -1) exit(1); if (dup2(netns, kInitNetNsFd) < 0) exit(1); close(netns); struct rlimit rlim; rlim.rlim_cur = rlim.rlim_max = (200 << 20); setrlimit(RLIMIT_AS, &rlim); rlim.rlim_cur = rlim.rlim_max = 32 << 20; setrlimit(RLIMIT_MEMLOCK, &rlim); rlim.rlim_cur = rlim.rlim_max = 136 << 20; setrlimit(RLIMIT_FSIZE, &rlim); rlim.rlim_cur = rlim.rlim_max = 1 << 20; setrlimit(RLIMIT_STACK, &rlim); rlim.rlim_cur = rlim.rlim_max = 128 << 20; setrlimit(RLIMIT_CORE, &rlim); rlim.rlim_cur = rlim.rlim_max = 256; setrlimit(RLIMIT_NOFILE, &rlim); if (unshare(CLONE_NEWNS)) { } if (mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, NULL)) { } if (unshare(CLONE_NEWIPC)) { } if (unshare(0x02000000)) { } if (unshare(CLONE_NEWUTS)) { } if (unshare(CLONE_SYSVSEM)) { } typedef struct { const char* name; const char* value; } sysctl_t; static const sysctl_t sysctls[] = { {"/proc/sys/kernel/shmmax", "16777216"}, {"/proc/sys/kernel/shmall", "536870912"}, {"/proc/sys/kernel/shmmni", "1024"}, {"/proc/sys/kernel/msgmax", "8192"}, {"/proc/sys/kernel/msgmni", "1024"}, {"/proc/sys/kernel/msgmnb", "1024"}, {"/proc/sys/kernel/sem", "1024 1048576 500 1024"}, }; unsigned i; for (i = 0; i < sizeof(sysctls) / sizeof(sysctls[0]); i++) write_file(sysctls[i].name, sysctls[i].value); } static int wait_for_loop(int pid) { if (pid < 0) exit(1); int status = 0; while (waitpid(-1, &status, __WALL) != pid) { } return WEXITSTATUS(status); } static void drop_caps(void) { struct __user_cap_header_struct cap_hdr = {}; struct __user_cap_data_struct cap_data[2] = {}; cap_hdr.version = _LINUX_CAPABILITY_VERSION_3; cap_hdr.pid = getpid(); if (syscall(SYS_capget, &cap_hdr, &cap_data)) exit(1); const int drop = (1 << CAP_SYS_PTRACE) | (1 << CAP_SYS_NICE); cap_data[0].effective &= ~drop; cap_data[0].permitted &= ~drop; cap_data[0].inheritable &= ~drop; if (syscall(SYS_capset, &cap_hdr, &cap_data)) exit(1); } static int do_sandbox_none(void) { if (unshare(CLONE_NEWPID)) { } int pid = fork(); if (pid != 0) return wait_for_loop(pid); initialize_vhci(); sandbox_common(); drop_caps(); if (unshare(CLONE_NEWNET)) { } write_file("/proc/sys/net/ipv4/ping_group_range", "0 65535"); sandbox_common_mount_tmpfs(); loop(); exit(1); } #define FS_IOC_SETFLAGS _IOW('f', 2, long) static void remove_dir(const char* dir) { int iter = 0; DIR* dp = 0; const int umount_flags = MNT_FORCE | UMOUNT_NOFOLLOW; retry: while (umount2(dir, umount_flags) == 0) { } dp = opendir(dir); if (dp == NULL) { if (errno == EMFILE) { exit(1); } exit(1); } struct dirent* ep = 0; while ((ep = readdir(dp))) { if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0) continue; char filename[FILENAME_MAX]; snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name); while (umount2(filename, umount_flags) == 0) { } struct stat st; if (lstat(filename, &st)) exit(1); if (S_ISDIR(st.st_mode)) { remove_dir(filename); continue; } int i; for (i = 0;; i++) { if (unlink(filename) == 0) break; if (errno == EPERM) { int fd = open(filename, O_RDONLY); if (fd != -1) { long flags = 0; if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) { } close(fd); continue; } } if (errno == EROFS) { break; } if (errno != EBUSY || i > 100) exit(1); if (umount2(filename, umount_flags)) exit(1); } } closedir(dp); for (int i = 0;; i++) { if (rmdir(dir) == 0) break; if (i < 100) { if (errno == EPERM) { int fd = open(dir, O_RDONLY); if (fd != -1) { long flags = 0; if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) { } close(fd); continue; } } if (errno == EROFS) { break; } if (errno == EBUSY) { if (umount2(dir, umount_flags)) exit(1); continue; } if (errno == ENOTEMPTY) { if (iter < 100) { iter++; goto retry; } } } exit(1); } } static int inject_fault(int nth) { int fd; fd = open("/proc/thread-self/fail-nth", O_RDWR); if (fd == -1) exit(1); char buf[16]; sprintf(buf, "%d", nth); if (write(fd, buf, strlen(buf)) != (ssize_t)strlen(buf)) exit(1); return fd; } static void kill_and_wait(int pid, int* status) { kill(-pid, SIGKILL); kill(pid, SIGKILL); for (int i = 0; i < 100; i++) { if (waitpid(-1, status, WNOHANG | __WALL) == pid) return; usleep(1000); } DIR* dir = opendir("/sys/fs/fuse/connections"); if (dir) { for (;;) { struct dirent* ent = readdir(dir); if (!ent) break; if (strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0) continue; char abort[300]; snprintf(abort, sizeof(abort), "/sys/fs/fuse/connections/%s/abort", ent->d_name); int fd = open(abort, O_WRONLY); if (fd == -1) { continue; } if (write(fd, abort, 1) < 0) { } close(fd); } closedir(dir); } else { } while (waitpid(-1, status, __WALL) != pid) { } } static void reset_loop() { char buf[64]; snprintf(buf, sizeof(buf), "/dev/loop%llu", procid); int loopfd = open(buf, O_RDWR); if (loopfd != -1) { ioctl(loopfd, LOOP_CLR_FD, 0); close(loopfd); } } static void setup_test() { prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0); setpgrp(); write_file("/proc/self/oom_score_adj", "1000"); if (symlink("/dev/binderfs", "./binderfs")) { } } static const char* setup_fault() { int fd = open("/proc/self/make-it-fail", O_WRONLY); if (fd == -1) return "CONFIG_FAULT_INJECTION is not enabled"; close(fd); fd = open("/proc/thread-self/fail-nth", O_WRONLY); if (fd == -1) return "kernel does not have systematic fault injection support"; close(fd); static struct { const char* file; const char* val; bool fatal; } files[] = { {"/sys/kernel/debug/failslab/ignore-gfp-wait", "N", true}, {"/sys/kernel/debug/fail_futex/ignore-private", "N", false}, {"/sys/kernel/debug/fail_page_alloc/ignore-gfp-highmem", "N", false}, {"/sys/kernel/debug/fail_page_alloc/ignore-gfp-wait", "N", false}, {"/sys/kernel/debug/fail_page_alloc/min-order", "0", false}, }; unsigned i; for (i = 0; i < sizeof(files) / sizeof(files[0]); i++) { if (!write_file(files[i].file, files[i].val)) { if (files[i].fatal) return "failed to write fault injection file"; } } return NULL; } #define FUSE_MIN_READ_BUFFER 8192 enum fuse_opcode { FUSE_LOOKUP = 1, FUSE_FORGET = 2, FUSE_GETATTR = 3, FUSE_SETATTR = 4, FUSE_READLINK = 5, FUSE_SYMLINK = 6, FUSE_MKNOD = 8, FUSE_MKDIR = 9, FUSE_UNLINK = 10, FUSE_RMDIR = 11, FUSE_RENAME = 12, FUSE_LINK = 13, FUSE_OPEN = 14, FUSE_READ = 15, FUSE_WRITE = 16, FUSE_STATFS = 17, FUSE_RELEASE = 18, FUSE_FSYNC = 20, FUSE_SETXATTR = 21, FUSE_GETXATTR = 22, FUSE_LISTXATTR = 23, FUSE_REMOVEXATTR = 24, FUSE_FLUSH = 25, FUSE_INIT = 26, FUSE_OPENDIR = 27, FUSE_READDIR = 28, FUSE_RELEASEDIR = 29, FUSE_FSYNCDIR = 30, FUSE_GETLK = 31, FUSE_SETLK = 32, FUSE_SETLKW = 33, FUSE_ACCESS = 34, FUSE_CREATE = 35, FUSE_INTERRUPT = 36, FUSE_BMAP = 37, FUSE_DESTROY = 38, FUSE_IOCTL = 39, FUSE_POLL = 40, FUSE_NOTIFY_REPLY = 41, FUSE_BATCH_FORGET = 42, FUSE_FALLOCATE = 43, FUSE_READDIRPLUS = 44, FUSE_RENAME2 = 45, FUSE_LSEEK = 46, FUSE_COPY_FILE_RANGE = 47, FUSE_SETUPMAPPING = 48, FUSE_REMOVEMAPPING = 49, FUSE_SYNCFS = 50, FUSE_TMPFILE = 51, FUSE_STATX = 52, CUSE_INIT = 4096, CUSE_INIT_BSWAP_RESERVED = 1048576, FUSE_INIT_BSWAP_RESERVED = 436207616, }; struct fuse_in_header { uint32_t len; uint32_t opcode; uint64_t unique; uint64_t nodeid; uint32_t uid; uint32_t gid; uint32_t pid; uint32_t padding; }; struct fuse_out_header { uint32_t len; uint32_t error; uint64_t unique; }; struct syz_fuse_req_out { struct fuse_out_header* init; struct fuse_out_header* lseek; struct fuse_out_header* bmap; struct fuse_out_header* poll; struct fuse_out_header* getxattr; struct fuse_out_header* lk; struct fuse_out_header* statfs; struct fuse_out_header* write; struct fuse_out_header* read; struct fuse_out_header* open; struct fuse_out_header* attr; struct fuse_out_header* entry; struct fuse_out_header* dirent; struct fuse_out_header* direntplus; struct fuse_out_header* create_open; struct fuse_out_header* ioctl; struct fuse_out_header* statx; }; static int fuse_send_response(int fd, const struct fuse_in_header* in_hdr, struct fuse_out_header* out_hdr) { if (!out_hdr) { return -1; } out_hdr->unique = in_hdr->unique; if (write(fd, out_hdr, out_hdr->len) == -1) { return -1; } return 0; } static volatile long syz_fuse_handle_req(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { struct syz_fuse_req_out* req_out = (struct syz_fuse_req_out*)a3; struct fuse_out_header* out_hdr = NULL; char* buf = (char*)a1; int buf_len = (int)a2; int fd = (int)a0; if (!req_out) { return -1; } if (buf_len < FUSE_MIN_READ_BUFFER) { return -1; } int ret = read(fd, buf, buf_len); if (ret == -1) { return -1; } if ((size_t)ret < sizeof(struct fuse_in_header)) { return -1; } const struct fuse_in_header* in_hdr = (const struct fuse_in_header*)buf; if (in_hdr->len > (uint32_t)ret) { return -1; } switch (in_hdr->opcode) { case FUSE_GETATTR: case FUSE_SETATTR: out_hdr = req_out->attr; break; case FUSE_LOOKUP: case FUSE_SYMLINK: case FUSE_LINK: case FUSE_MKNOD: case FUSE_MKDIR: out_hdr = req_out->entry; break; case FUSE_OPEN: case FUSE_OPENDIR: out_hdr = req_out->open; break; case FUSE_STATFS: out_hdr = req_out->statfs; break; case FUSE_RMDIR: case FUSE_RENAME: case FUSE_RENAME2: case FUSE_FALLOCATE: case FUSE_SETXATTR: case FUSE_REMOVEXATTR: case FUSE_FSYNCDIR: case FUSE_FSYNC: case FUSE_SETLKW: case FUSE_SETLK: case FUSE_ACCESS: case FUSE_FLUSH: case FUSE_RELEASE: case FUSE_RELEASEDIR: case FUSE_UNLINK: case FUSE_DESTROY: out_hdr = req_out->init; if (!out_hdr) { return -1; } out_hdr->len = sizeof(struct fuse_out_header); break; case FUSE_READ: out_hdr = req_out->read; break; case FUSE_READDIR: out_hdr = req_out->dirent; break; case FUSE_READDIRPLUS: out_hdr = req_out->direntplus; break; case FUSE_INIT: out_hdr = req_out->init; break; case FUSE_LSEEK: out_hdr = req_out->lseek; break; case FUSE_GETLK: out_hdr = req_out->lk; break; case FUSE_BMAP: out_hdr = req_out->bmap; break; case FUSE_POLL: out_hdr = req_out->poll; break; case FUSE_GETXATTR: case FUSE_LISTXATTR: out_hdr = req_out->getxattr; break; case FUSE_WRITE: case FUSE_COPY_FILE_RANGE: out_hdr = req_out->write; break; case FUSE_FORGET: case FUSE_BATCH_FORGET: return 0; case FUSE_CREATE: out_hdr = req_out->create_open; break; case FUSE_IOCTL: out_hdr = req_out->ioctl; break; case FUSE_STATX: out_hdr = req_out->statx; break; default: return -1; } return fuse_send_response(fd, in_hdr, out_hdr); } #define HWSIM_ATTR_RX_RATE 5 #define HWSIM_ATTR_SIGNAL 6 #define HWSIM_ATTR_ADDR_RECEIVER 1 #define HWSIM_ATTR_FRAME 3 #define WIFI_MAX_INJECT_LEN 2048 static int hwsim_register_socket(struct nlmsg* nlmsg, int sock, int hwsim_family) { struct genlmsghdr genlhdr; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = HWSIM_CMD_REGISTER; netlink_init(nlmsg, hwsim_family, 0, &genlhdr, sizeof(genlhdr)); int err = netlink_send_ext(nlmsg, sock, 0, NULL, false); if (err < 0) { } return err; } static int hwsim_inject_frame(struct nlmsg* nlmsg, int sock, int hwsim_family, uint8_t* mac_addr, uint8_t* data, int len) { struct genlmsghdr genlhdr; uint32_t rx_rate = WIFI_DEFAULT_RX_RATE; uint32_t signal = WIFI_DEFAULT_SIGNAL; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = HWSIM_CMD_FRAME; netlink_init(nlmsg, hwsim_family, 0, &genlhdr, sizeof(genlhdr)); netlink_attr(nlmsg, HWSIM_ATTR_RX_RATE, &rx_rate, sizeof(rx_rate)); netlink_attr(nlmsg, HWSIM_ATTR_SIGNAL, &signal, sizeof(signal)); netlink_attr(nlmsg, HWSIM_ATTR_ADDR_RECEIVER, mac_addr, ETH_ALEN); netlink_attr(nlmsg, HWSIM_ATTR_FRAME, data, len); int err = netlink_send_ext(nlmsg, sock, 0, NULL, false); if (err < 0) { } return err; } static long syz_80211_inject_frame(volatile long a0, volatile long a1, volatile long a2) { uint8_t* mac_addr = (uint8_t*)a0; uint8_t* buf = (uint8_t*)a1; int buf_len = (int)a2; struct nlmsg tmp_msg; if (buf_len < 0 || buf_len > WIFI_MAX_INJECT_LEN) { return -1; } int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC); if (sock < 0) { return -1; } int hwsim_family_id = netlink_query_family_id(&tmp_msg, sock, "MAC80211_HWSIM", false); if (hwsim_family_id < 0) { close(sock); return -1; } int ret = hwsim_register_socket(&tmp_msg, sock, hwsim_family_id); if (ret < 0) { close(sock); return -1; } ret = hwsim_inject_frame(&tmp_msg, sock, hwsim_family_id, mac_addr, buf, buf_len); close(sock); if (ret < 0) { return -1; } return 0; } #define WIFI_MAX_SSID_LEN 32 #define WIFI_JOIN_IBSS_NO_SCAN 0 #define WIFI_JOIN_IBSS_BG_SCAN 1 #define WIFI_JOIN_IBSS_BG_NO_SCAN 2 static long syz_80211_join_ibss(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { char* interface = (char*)a0; uint8_t* ssid = (uint8_t*)a1; int ssid_len = (int)a2; int mode = (int)a3; struct nlmsg tmp_msg; uint8_t bssid[ETH_ALEN] = WIFI_IBSS_BSSID; if (ssid_len < 0 || ssid_len > WIFI_MAX_SSID_LEN) { return -1; } if (mode < 0 || mode > WIFI_JOIN_IBSS_BG_NO_SCAN) { return -1; } int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC); if (sock < 0) { return -1; } int nl80211_family_id = netlink_query_family_id(&tmp_msg, sock, "nl80211", false); if (nl80211_family_id < 0) { close(sock); return -1; } struct join_ibss_props ibss_props = { .wiphy_freq = WIFI_DEFAULT_FREQUENCY, .wiphy_freq_fixed = (mode == WIFI_JOIN_IBSS_NO_SCAN || mode == WIFI_JOIN_IBSS_BG_NO_SCAN), .mac = bssid, .ssid = ssid, .ssid_len = ssid_len}; int ret = nl80211_setup_ibss_interface(&tmp_msg, sock, nl80211_family_id, interface, &ibss_props, false); close(sock); if (ret < 0) { return -1; } if (mode == WIFI_JOIN_IBSS_NO_SCAN) { ret = await_ifla_operstate(&tmp_msg, interface, IF_OPER_UP, false); if (ret < 0) { return -1; } } return 0; } #define USLEEP_FORKED_CHILD (3 * 50 *1000) static long handle_clone_ret(long ret) { if (ret != 0) { return ret; } usleep(USLEEP_FORKED_CHILD); syscall(__NR_exit, 0); while (1) { } } static long syz_clone(volatile long flags, volatile long stack, volatile long stack_len, volatile long ptid, volatile long ctid, volatile long tls) { long sp = (stack + stack_len) & ~15; long ret = (long)syscall(__NR_clone, flags & ~CLONE_VM, sp, ptid, ctid, tls); return handle_clone_ret(ret); } #define MAX_CLONE_ARGS_BYTES 256 static long syz_clone3(volatile long a0, volatile long a1) { unsigned long copy_size = a1; if (copy_size < sizeof(uint64_t) || copy_size > MAX_CLONE_ARGS_BYTES) return -1; char clone_args[MAX_CLONE_ARGS_BYTES]; memcpy(&clone_args, (void*)a0, copy_size); uint64_t* flags = (uint64_t*)&clone_args; *flags &= ~CLONE_VM; return handle_clone_ret((long)syscall(__NR_clone3, &clone_args, copy_size)); } #define RESERVED_PKEY 15 static long syz_pkey_set(volatile long pkey, volatile long val) { if (pkey == RESERVED_PKEY) { errno = EINVAL; return -1; } uint32_t eax = 0; uint32_t ecx = 0; asm volatile("rdpkru" : "=a"(eax) : "c"(ecx) : "edx"); eax &= ~(3 << ((pkey % 16) * 2)); eax |= (val & 3) << ((pkey % 16) * 2); uint32_t edx = 0; asm volatile("wrpkru" ::"a"(eax), "c"(ecx), "d"(edx)); return 0; } static long syz_pidfd_open(volatile long pid, volatile long flags) { if (pid == 1) { pid = 0; } return syscall(__NR_pidfd_open, pid, flags); } struct thread_t { int created, call; event_t ready, done; }; static struct thread_t threads[16]; static void execute_call(int call); static int running; static void* thr(void* arg) { struct thread_t* th = (struct thread_t*)arg; for (;;) { event_wait(&th->ready); event_reset(&th->ready); execute_call(th->call); __atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED); event_set(&th->done); } return 0; } static void execute_one(void) { if (write(1, "executing program\n", sizeof("executing program\n") - 1)) { } int i, call, thread; for (call = 0; call < 64; call++) { for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0])); thread++) { struct thread_t* th = &threads[thread]; if (!th->created) { th->created = 1; event_init(&th->ready); event_init(&th->done); event_set(&th->done); thread_start(thr, th); } if (!event_isset(&th->done)) continue; event_reset(&th->done); th->call = call; __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED); event_set(&th->ready); if (call == 1) break; event_timedwait(&th->done, 50 + (call == 12 ? 500 : 0) + (call == 55 ? 3000 : 0) + (call == 56 ? 3000 : 0) + (call == 57 ? 3000 : 0) + (call == 58 ? 300 : 0) + (call == 59 ? 300 : 0) + (call == 60 ? 3000 : 0) + (call == 61 ? 300 : 0) + (call == 62 ? 300 : 0)); break; } } for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++) sleep_ms(1); } static void execute_one(void); #define WAIT_FLAGS __WALL static void loop(void) { int iter = 0; for (;; iter++) { char cwdbuf[32]; sprintf(cwdbuf, "./%d", iter); if (mkdir(cwdbuf, 0777)) exit(1); reset_loop(); int pid = fork(); if (pid < 0) exit(1); if (pid == 0) { if (chdir(cwdbuf)) exit(1); setup_test(); execute_one(); exit(0); } int status = 0; uint64_t start = current_time_ms(); for (;;) { sleep_ms(10); if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid) break; if (current_time_ms() - start < 5000) continue; kill_and_wait(pid, &status); break; } remove_dir(cwdbuf); } } uint64_t r[41] = {0xffffffffffffffff, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff}; void execute_call(int call) { intptr_t res = 0; switch (call) { case 0: memcpy((void*)0x200000000000, "/dev/ubi_ctrl\000", 14); inject_fault(1); res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x200000000000ul, /*flags=O_NOCTTY|O_NOATIME|O_DIRECT|O_APPEND|O_RDWR*/0x44502, /*mode=*/0); if (res != -1) r[0] = res; break; case 1: STORE_BY_BITMASK(uint8_t, , 0x200000000140, 0xa, 0, 7); STORE_BY_BITMASK(uint8_t, , 0x200000000140, 1, 7, 1); *(uint32_t*)0x200000000144 = 0xc5; *(uint32_t*)0x200000000148 = 1; *(uint64_t*)0x200000000150 = 0x200000000040; memcpy((void*)0x200000000040, "\xe1\xee\x87\xa8\xf7\x6c\x25\x7b\x75\xc1\x07\x3c\x70\x58\xbe\x82\xfe\x33\x62\xbb\xcc\xa5\x4d\xf5\x20\xd1\xca\x8f\xa9\x1b\x50\x81\x0f\x87\x6d\x1f\xab\x0a\x1c\xc2\x14\xc3\x5f\x4e\x26\x6e\x71\x64\x3d\x8c\x95\x98\x80\x87\xe4\x6a\x87\xc1\xa7\x15\xef\xfe\x06\x16\x9a\xb6\x5f\xa1\x8e\x54\x14\x40\x4f\x30\xc0\x00\x55\x61\x39\x7e\xd1\xd9\x55\x7c\x66\xa9\x94\xb9\x54\xef\xa7\x14\x98\x5a\x2a\xe4\x09\xdf\x81\x11\xfa\x8a\x36\x14\x08\x73\x4d\x15\xb3\x0c\xd9\xab\x3f\xa5\x0e\x08\x8b\x3d\x2b\xaf\xdc\x68\x9e\xa3\xcb\x7e\x52\xa9\xfc\x7f\x5d\x48\xd2\x45\xd4\x09\x7b\xb9\x33\x72\x5b\xd9\xe2\x93\x71\xcd\x77\x80\xb4\xec\x8d\x6e\x2d\xbf\x86\x1a\xad\x04\xd6\x59\x4f\x5e\xbd\x2f\xfa\xb1\xe8\xa6\x8c\x51\x57\xca\xe2\xf4\x6f\x6f\xa3\xae\xac\x0e\x3f\x8b\x7b\x97\x63\x0f\x34\x6b\xc3\x27\x6e\x53\xca\x72\xb4\x17\xf8", 197); syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0xc0185502, /*arg=*/0x200000000140ul); break; case 2: *(uint8_t*)0x200000000180 = 4; *(uint8_t*)0x200000000181 = 9; syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x4002f516, /*arg=*/0x200000000180ul); for (int i = 0; i < 4; i++) { syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x4002f516, /*arg=*/0x200000000180ul); } break; case 3: *(uint32_t*)0x2000000001c0 = -1; syscall(__NR_setsockopt, /*fd=*/r[0], /*level=*/6, /*optname=*/0x13, /*optval=*/0x2000000001c0ul, /*optlen=*/4ul); break; case 4: *(uint32_t*)0x200000000200 = 4; *(uint16_t*)0x200000000208 = 0xa; *(uint16_t*)0x20000000020a = htobe16(0x4e20); *(uint32_t*)0x20000000020c = htobe32(4); *(uint8_t*)0x200000000210 = 0xfc; *(uint8_t*)0x200000000211 = 0; memset((void*)0x200000000212, 0, 13); *(uint8_t*)0x20000000021f = 1; *(uint32_t*)0x200000000220 = 0; *(uint16_t*)0x200000000288 = 0xa; *(uint16_t*)0x20000000028a = htobe16(0x4e21); *(uint32_t*)0x20000000028c = htobe32(1); *(uint8_t*)0x200000000290 = 0xfe; *(uint8_t*)0x200000000291 = 0x80; memset((void*)0x200000000292, 0, 13); *(uint8_t*)0x20000000029f = 0xaa; *(uint32_t*)0x2000000002a0 = 9; syscall(__NR_setsockopt, /*fd=*/r[0], /*level=*/0x29, /*optname=MCAST_BLOCK_SOURCE*/0x2b, /*optval=*/0x200000000200ul, /*optlen=*/0x108ul); break; case 5: *(uint32_t*)0x200000000340 = 0x4b; memcpy((void*)0x200000000344, "\x0c\xbd\x83\x9a\x79\x58\x33\x77\x5d\x88\x69\x41\xba\x50\xa6\x62\xb8\x10\x8f\x94\x6a\xef\xdd\x5c\xb7\xb6\xeb\x3a\x78\xa0\x64\x73\xe5\x82\x89\xee\x95\x41\xad\x35\x45\x8f\xa9\xd6\xb6\x44\xbf\x56\xfd\xbb\xe1\xc4\x40\x04\x3f\x67\x9b\x3a\x03\xcf\x34\xcc\x05\xed\xc7\x36\xad\x84\x88\x52\xc6\x93\xb8\x9b\x55\x1c\xaa\xbf\x8c\xae\xdd\x7f\x8e\xe9\x80\x29\x49\x11\xc0\x2a\xcd\xb1\x10\x5f\x36\xe9\x73\x61\x6e\xb6\x09\x53\x5e\x68\xc8\xaf\xfb\x3c\x93\x5c\x76\x0f\x88\x5f\xa2\xa4\xb4\x83\x8d\x7d\xb0\x09\xe9\x19\xe5\xab\x59\x34\xb3\xb8\x5f\x8f\xf9\xe2\xaf\xc0\xa1\x86\xc9\xdc\xf9\xab\x5c\x9f\x6e\xb4\x56\x20\xdd\xbd\xa7\xe2\xa4\x67\x7a\x1e\x7c\x69\x4b\x3e\x00\xe3\x5a\x16\xd8\xe5\x25\x26\xd1\x35\x3b\xb0\xfd\x60\x7f\xa0\xf0\x7d\x45\x80\x81\x02\xe3\x8c\x66\xb6\xb5\xbf\xe0\x53\x03\x6b\x95\x6a\x96\x70\x1a\x8d\x02\x58\x8e\x7a\x7c\xc1\xf8\x4a\x3c\x0a\x3b\xa7\x80\xd5\xbb\x49\x4e\x86\x01\x75\x98\x9a\xb6\xec\x07\xd1\x35\x33\x71\x5c\xfb\x45\x84\xfd\x2a\x81\x86\xd7\x4b\xb7\x40\x17\x20\x6d\x94\x0f\x25\xfa\x7e\xc2\xde\xbe\x5a\x31\xcf\x5c\x23\x30", 256); syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x41045508, /*arg=*/0x200000000340ul); break; case 6: *(uint64_t*)0x200000000580 = 0x200000000480; *(uint64_t*)0x200000000588 = 0x8000; *(uint32_t*)0x200000000590 = 0x1800; *(uint32_t*)0x200000000594 = 1; *(uint32_t*)0x200000000598 = 3; syscall(__NR_setsockopt, /*fd=*/r[0], /*level=*/0x11b, /*opt=*/4, /*val=*/0x200000000580ul, /*len=*/0x20ul); break; case 7: *(uint64_t*)0x2000000005c0 = 4; syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x127d, /*arg=*/0x2000000005c0ul); break; case 8: *(uint32_t*)0x200000000604 = 0; *(uint32_t*)0x200000000608 = r[0]; *(uint32_t*)0x20000000060c = 0; syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0xc01864c2, /*arg=*/0x200000000600ul); break; case 9: *(uint32_t*)0x2000000006c0 = 0; syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0xc00464c9, /*arg=*/0x2000000006c0ul); break; case 10: memset((void*)0x200000000000, 255, 6); STORE_BY_BITMASK(uint8_t, , 0x200000000040, 0, 0, 2); STORE_BY_BITMASK(uint8_t, , 0x200000000040, 2, 2, 2); STORE_BY_BITMASK(uint8_t, , 0x200000000040, 0xb, 4, 4); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 0, 0, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 1, 1, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 0, 2, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 1, 3, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 1, 4, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 0, 5, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 0, 6, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 1, 7, 1); STORE_BY_BITMASK(uint16_t, , 0x200000000042, 2, 0, 15); STORE_BY_BITMASK(uint16_t, , 0x200000000043, 0, 7, 1); *(uint8_t*)0x200000000044 = 8; *(uint8_t*)0x200000000045 = 2; *(uint8_t*)0x200000000046 = 0x11; *(uint8_t*)0x200000000047 = 0; *(uint8_t*)0x200000000048 = 0; *(uint8_t*)0x200000000049 = 1; *(uint8_t*)0x20000000004a = 8; *(uint8_t*)0x20000000004b = 2; *(uint8_t*)0x20000000004c = 0x11; *(uint8_t*)0x20000000004d = 0; *(uint8_t*)0x20000000004e = 0; *(uint8_t*)0x20000000004f = 0; memset((void*)0x200000000050, 80, 6); STORE_BY_BITMASK(uint16_t, , 0x200000000056, 9, 0, 4); STORE_BY_BITMASK(uint16_t, , 0x200000000056, 0x5bb, 4, 12); STORE_BY_BITMASK(uint8_t, , 0x200000000058, 1, 0, 4); STORE_BY_BITMASK(uint8_t, , 0x200000000058, 1, 4, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000058, 1, 5, 2); STORE_BY_BITMASK(uint8_t, , 0x200000000058, 1, 7, 1); *(uint8_t*)0x200000000059 = 9; STORE_BY_BITMASK(uint16_t, , 0x20000000005a, 0, 0, 1); STORE_BY_BITMASK(uint16_t, , 0x20000000005a, 2, 1, 15); STORE_BY_BITMASK(uint8_t, , 0x20000000005c, 0, 0, 2); STORE_BY_BITMASK(uint8_t, , 0x20000000005c, 0, 2, 2); STORE_BY_BITMASK(uint8_t, , 0x20000000005c, 0, 4, 2); STORE_BY_BITMASK(uint8_t, , 0x20000000005c, 3, 6, 2); STORE_BY_BITMASK(uint8_t, , 0x20000000005d, 0, 0, 1); STORE_BY_BITMASK(uint8_t, , 0x20000000005d, 0, 1, 5); STORE_BY_BITMASK(uint8_t, , 0x20000000005d, 1, 6, 1); STORE_BY_BITMASK(uint8_t, , 0x20000000005d, 0, 7, 1); memcpy((void*)0x20000000005e, "\x05\x5b\xa7\x19\x28\xa7\x9f\x86\x25\x94\x2b\x8e\x22\xa6\x2e\x7d\x0e\xf5\xd2\x6a\xfb\x59\x23\xf0\xa1", 25); syz_80211_inject_frame(/*mac_addr=*/0x200000000000, /*buf=*/0x200000000040, /*buf_len=*/0x37); break; case 11: memcpy((void*)0x200000000080, "wlan0\000", 6); memcpy((void*)0x2000000000c0, "\xf2\x0f\x01\x43\x92\x29\x17\x2e\xc7\x63\x7d\x66\xe2\xf0\x75", 15); syz_80211_join_ibss(/*interface=*/0x200000000080, /*ssid=*/0x2000000000c0, /*ssid_len=*/0xf, /*join_mode=JOIN_IBSS_BG_NO_SCAN*/2); break; case 12: memcpy((void*)0x200000000100, "bpf_lsm_inode_getsecurity\000", 26); syz_btf_id_by_name(/*name=*/0x200000000100); break; case 13: memcpy((void*)0x200000000140, "\xff\x42\x7f\x0e\x46\x59\xab\x58\x93\xd3\xba\xdb\x31\xb3\xb1\xb8\x9d\xa5\x2b\x0f\x3d\x34\x89\xa1\x8a\x58\x37\xba\x6e\x04\xf2\x1c\xf0\x58\x1d\xe7\x94\x6c\x2e\x29\xad\xef\x18\x03\x6a\x10\xce\x36\x12\x50\xa5\x66\x70\x64\xb4\xd4\x56\xc6\x4c\x30\x7d\x63\xcf\xe3\x42\x2c\x3f\xaf\xd4\x50\x31\x5e\x83\x66", 74); memcpy((void*)0x200000000240, "\xb2\x01\xd1\x39\xa4\x34\x4e\x46\x3d\x89\x91\x3b\xee\x9c\x68\xaf\x3f\x34\x09\x0b\x9f\x62\x44\xaf\x88\xc8\xfe\x07\xce\x4f\xfe\x9b\x81\x21\x0d\xa0\xfc\x44\x55\x9d\x98\x5a\xd5\xbb\x1d\xc9\x67\x2c\xe4\xd1\xdf\x55\x4a\xaf\xb7\x80\x53\xf4", 58); res = -1; res = syz_clone(/*flags=CLONE_PIDFD*/0x1000, /*stack=*/0x200000000140, /*stack_len=*/0x4a, /*parentid=*/0x2000000001c0, /*childtid=*/0x200000000200, /*tls=*/0x200000000240); if (res != -1) r[1] = res; break; case 14: *(uint64_t*)0x200000000440 = 0x100400; *(uint64_t*)0x200000000448 = 0x200000000280; *(uint64_t*)0x200000000450 = 0x2000000002c0; *(uint64_t*)0x200000000458 = 0x200000000300; *(uint32_t*)0x200000000460 = 0x2a; *(uint64_t*)0x200000000468 = 0x200000000340; *(uint64_t*)0x200000000470 = 0x15; *(uint64_t*)0x200000000478 = 0x200000000380; *(uint64_t*)0x200000000480 = 0x200000000400; *(uint32_t*)0x200000000400 = r[1]; *(uint64_t*)0x200000000488 = 1; *(uint32_t*)0x200000000490 = -1; res = -1; res = syz_clone3(/*args=*/0x200000000440, /*size=*/0x58); if (res != -1) { r[2] = res; r[3] = *(uint32_t*)0x200000000280; r[4] = *(uint32_t*)0x2000000002c0; r[5] = *(uint32_t*)0x200000000300; } break; case 15: memcpy((void*)0x2000000004c0, "./file0\000", 8); syz_create_resource(/*file=*/0x2000000004c0); break; case 16: *(uint8_t*)0x200000000640 = 2; STORE_BY_BITMASK(uint16_t, , 0x200000000641, 0xc9, 0, 12); STORE_BY_BITMASK(uint16_t, , 0x200000000642, 1, 4, 2); STORE_BY_BITMASK(uint16_t, , 0x200000000642, 0, 6, 2); *(uint16_t*)0x200000000643 = 0xa2; *(uint16_t*)0x200000000645 = 0x9e; *(uint16_t*)0x200000000647 = 1; *(uint8_t*)0x200000000649 = 0xa; *(uint8_t*)0x20000000064a = 4; *(uint16_t*)0x20000000064b = 2; *(uint16_t*)0x20000000064d = 5; *(uint8_t*)0x20000000064f = 0xf; *(uint8_t*)0x200000000650 = 7; *(uint16_t*)0x200000000651 = 4; *(uint16_t*)0x200000000653 = 1; *(uint16_t*)0x200000000655 = 0x1ff; *(uint8_t*)0x200000000657 = 0xb; *(uint8_t*)0x200000000658 = 8; *(uint16_t*)0x200000000659 = 0x64; *(uint16_t*)0x20000000065b = 1; *(uint16_t*)0x20000000065d = 9; memcpy((void*)0x20000000065f, "\x7d\x0c\x09\xe4\xaa\x3e\xa5\xa7\x8a\x46\xcf\x8d\x66\x85\x7b\xa4\x10\x7e\x5c\xf8\x80\x62\x1c\x4c\x43\x3c\xdb\x0a\x8b\xd0\x3a\x4f\x9c\x8f\x39\x01\x45\xf9\xdb\x0c\x1d\xd8\x56\x56\xd6\xb3\xdc\x38\xaf\xb8\x4d\x7e\x11\x8e\x1c\xbd\xd6\x92\x6b\x18\x76\xbe\x6a\x65\x53\xba\xfa\x1b\xfe\xf9\x71\x28\x13\x50\x40\x3e\x18\xe8\x2e\x89\xf4\x2b\xb6\xd5\x1b\x16\x6b\xd9\x6d\xab\xf2\x5d\xbb\x28\xf0\x1e", 96); *(uint8_t*)0x2000000006bf = 6; *(uint8_t*)0x2000000006c0 = 0x64; *(uint16_t*)0x2000000006c1 = 4; *(uint16_t*)0x2000000006c3 = 9; *(uint16_t*)0x2000000006c5 = 1; *(uint8_t*)0x2000000006c7 = 0x10; *(uint8_t*)0x2000000006c8 = 2; *(uint16_t*)0x2000000006c9 = 4; *(uint16_t*)0x2000000006cb = -1; *(uint16_t*)0x2000000006cd = 9; *(uint8_t*)0x2000000006cf = 0xd; *(uint8_t*)0x2000000006d0 = 0x4f; *(uint16_t*)0x2000000006d1 = 8; *(uint16_t*)0x2000000006d3 = 6; *(uint16_t*)0x2000000006d5 = 0x8001; *(uint16_t*)0x2000000006d7 = 8; *(uint16_t*)0x2000000006d9 = 3; *(uint8_t*)0x2000000006db = 3; *(uint8_t*)0x2000000006dc = 0x48; *(uint16_t*)0x2000000006dd = 8; *(uint16_t*)0x2000000006df = 4; *(uint16_t*)0x2000000006e1 = 8; *(uint16_t*)0x2000000006e3 = 0x6837; *(uint16_t*)0x2000000006e5 = 4; syz_emit_vhci(/*data=*/0x200000000640, /*size=*/0xa7); break; case 17: memcpy((void*)0x200000000740, "/dev/cuse\000", 10); res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x200000000740ul, /*flags=*/2, /*mode=*/0); if (res != -1) r[6] = res; break; case 18: *(uint32_t*)0x200000002a80 = 7; *(uint32_t*)0x200000002a84 = 4; *(uint32_t*)0x200000002a88 = r[5]; *(uint32_t*)0x200000002a90 = 0; *(uint64_t*)0x200000002a98 = 0x100000000; *(uint64_t*)0x200000002aa0 = 3; res = syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0xc0286405, /*arg=*/0x200000002a80ul); if (res != -1) r[7] = *(uint32_t*)0x200000002a90; break; case 19: *(uint32_t*)0x200000002b80 = 1; *(uint32_t*)0x200000002b84 = 0; *(uint32_t*)0x200000002b88 = 0xee00; *(uint32_t*)0x200000002b8c = 5; *(uint32_t*)0x200000002b90 = 9; *(uint32_t*)0x200000002b94 = 0x8c; *(uint16_t*)0x200000002b98 = 6; *(uint32_t*)0x200000002b9c = 0xe0000; *(uint64_t*)0x200000002ba0 = 3; *(uint64_t*)0x200000002ba8 = 6; *(uint64_t*)0x200000002bb0 = 0x2c54; *(uint32_t*)0x200000002bb8 = 0x7fffffff; *(uint32_t*)0x200000002bbc = 5; *(uint16_t*)0x200000002bc0 = 3; *(uint16_t*)0x200000002bc2 = 0; *(uint64_t*)0x200000002bc8 = 0x200000002ac0; memcpy((void*)0x200000002ac0, "\x34\xd1\x45\x92\x33\x0d\x2e\xff\xe2\xb2\x42\xce\x1c\x79\xf9\x7a\x73\x7d\xc0\xf7\x74\x5d\x84\xee\xc4\x69\x04\x8b\xa4\x77\x2d\x3c\xa2\xf3\x4e\x3a\x83\xb5\xed\xad\xf6\x55\x0e\x5b\x41\x2c\xf5\xee\x74\x9b\x33\x24\xb3\x00\x32\xad\x2a\xe1\x4c\xfa\x29\xef\x4e\xcf\x97\x41\x6f\xdc\x53\xd7\x3b\xb8\x0e\xa1\x39\xaa\xc1\xbf\x36\x4d\xdc\xbe\x74\x09\x34\x21\x55\xae\x12\x6f\x63\xd9\xe3\xab\x1d\x51\x04\xbe\xfd\xd9", 100); *(uint64_t*)0x200000002bd0 = 0x200000002b40; memcpy((void*)0x200000002b40, "\xe5\x50\x41\x3c\x2f\x46\x9c\x9e\xf0\x8e\xb7\x19\x3b\x0a\x24\x2e\x58\xbe\xfe\x01\x2a\xa8\x9d\x7c", 24); res = syscall(__NR_shmctl, /*shmid=*/8, /*cmd=*/2ul, /*buf=*/0x200000002b80ul); if (res != -1) r[8] = *(uint32_t*)0x200000002b88; break; case 20: res = syscall(__NR_setfsuid, /*uid=*/0xee01); if (res != -1) r[9] = res; break; case 21: res = syscall(__NR_getuid); if (res != -1) r[10] = res; break; case 22: res = syscall(__NR_fstat, /*fd=*/r[3], /*statbuf=*/0x200000002ec0ul); if (res != -1) { r[11] = *(uint32_t*)0x200000002ed8; r[12] = *(uint32_t*)0x200000002edc; } break; case 23: *(uint32_t*)0x200000002f40 = 9; *(uint32_t*)0x200000002f44 = 6; *(uint32_t*)0x200000002f48 = -1; *(uint32_t*)0x200000002f50 = 0xee01; *(uint64_t*)0x200000002f58 = 9; *(uint64_t*)0x200000002f60 = 8; res = syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0xc0286405, /*arg=*/0x200000002f40ul); if (res != -1) r[13] = *(uint32_t*)0x200000002f50; break; case 24: *(uint64_t*)0x200000002f80 = 1; *(uint32_t*)0x200000002f88 = r[3]; *(uint32_t*)0x200000002f90 = r[3]; *(uint64_t*)0x200000002f98 = 0; *(uint64_t*)0x200000002fa0 = 0; memset((void*)0x200000002fa8, 0, 16); *(uint64_t*)0x200000002fb8 = 0x100; *(uint16_t*)0x200000002fc0 = 6; *(uint16_t*)0x200000002fc2 = 4; *(uint32_t*)0x200000002fc4 = 0; *(uint32_t*)0x200000002fc8 = 0xee01; *(uint32_t*)0x200000002fcc = 4; *(uint32_t*)0x200000002fd0 = 2; *(uint64_t*)0x200000002fd8 = 0xe78bc90; *(uint64_t*)0x200000002fe0 = 0x9e350; *(uint32_t*)0x200000002fe8 = 0x10; *(uint64_t*)0x200000002ff0 = 4; *(uint32_t*)0x200000002ff8 = 7; *(uint64_t*)0x200000003000 = 0x3a83; *(uint32_t*)0x200000003008 = 0x80000000; *(uint64_t*)0x200000003010 = 0xff; *(uint32_t*)0x200000003018 = 8; *(uint32_t*)0x20000000301c = 7; *(uint32_t*)0x200000003020 = 7; *(uint32_t*)0x200000003024 = 5; *(uint16_t*)0x200000003028 = 0xd275; *(uint16_t*)0x20000000302a = 6; *(uint16_t*)0x20000000302c = 1; *(uint16_t*)0x20000000302e = 0xff74; *(uint16_t*)0x200000003030 = 5; memset((void*)0x200000003032, 0, 2); *(uint32_t*)0x200000003034 = 0xf0e; *(uint32_t*)0x200000003038 = 0x400; *(uint16_t*)0x20000000303c = 2; *(uint16_t*)0x20000000303e = 0x8001; res = syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0xc0c0586d, /*arg=*/0x200000002f80ul); if (res != -1) { r[14] = *(uint32_t*)0x200000002f88; r[15] = *(uint32_t*)0x200000002f90; r[16] = *(uint32_t*)0x200000002fc8; } break; case 25: *(uint32_t*)0x2000000030c0 = 0x80; *(uint32_t*)0x2000000030c4 = 0; *(uint32_t*)0x2000000030c8 = 0xee01; *(uint32_t*)0x2000000030cc = 8; *(uint32_t*)0x2000000030d0 = 3; *(uint32_t*)0x2000000030d4 = 3; *(uint16_t*)0x2000000030d8 = 6; *(uint64_t*)0x2000000030e0 = 0x200000003040; *(uint8_t*)0x200000003040 = 0xf; *(uint64_t*)0x2000000030e8 = 0x200000003080; *(uint8_t*)0x200000003080 = 0x29; *(uint64_t*)0x2000000030f0 = 0xfffffffffffff801; *(uint64_t*)0x2000000030f8 = 0x6b4c; *(uint64_t*)0x200000003100 = 0; *(uint64_t*)0x200000003108 = 3; *(uint64_t*)0x200000003110 = 0x800; *(uint16_t*)0x200000003118 = 2; *(uint16_t*)0x20000000311a = 0xbf09; *(uint16_t*)0x20000000311c = 3; *(uint32_t*)0x200000003120 = r[2]; *(uint32_t*)0x200000003124 = r[4]; res = syscall(__NR_msgctl, /*msqid=*/2, /*cmd=*/0ul, /*buf=*/0x2000000030c0ul); if (res != -1) r[17] = *(uint32_t*)0x2000000030c4; break; case 26: *(uint32_t*)0x200000003140 = 0xb407; *(uint32_t*)0x200000003144 = 0xee01; *(uint64_t*)0x200000003148 = 8; *(uint64_t*)0x200000003150 = 8; res = syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0x4018aee2, /*arg=*/0x200000003140ul); if (res != -1) r[18] = *(uint32_t*)0x200000003144; break; case 27: memcpy((void*)0x200000003180, "./file0\000", 8); *(uint32_t*)0x2000000031c0 = 8; *(uint32_t*)0x2000000031c4 = 0xfffffffe; *(uint64_t*)0x2000000031c8 = 0; *(uint32_t*)0x2000000031d0 = 0xa; *(uint32_t*)0x2000000031d4 = 0; *(uint32_t*)0x2000000031d8 = 0xee00; *(uint16_t*)0x2000000031dc = 0xf; *(uint16_t*)0x2000000031de = 0x5d3e; *(uint64_t*)0x2000000031e0 = 5; *(uint64_t*)0x2000000031e8 = 0x10; *(uint64_t*)0x2000000031f0 = 0xff89; *(uint64_t*)0x2000000031f8 = 0x100; *(uint64_t*)0x200000003200 = 0xf; *(uint32_t*)0x200000003208 = 8; *(uint32_t*)0x20000000320c = 0; *(uint64_t*)0x200000003210 = 0xfff; *(uint32_t*)0x200000003218 = 2; *(uint32_t*)0x20000000321c = 0; *(uint64_t*)0x200000003220 = 3; *(uint32_t*)0x200000003228 = 0x7fff; *(uint32_t*)0x20000000322c = 0; *(uint64_t*)0x200000003230 = -1; *(uint32_t*)0x200000003238 = 9; *(uint32_t*)0x20000000323c = 0; *(uint32_t*)0x200000003240 = 0; *(uint32_t*)0x200000003244 = 3; *(uint32_t*)0x200000003248 = 7; *(uint32_t*)0x20000000324c = 0x8d6; *(uint64_t*)0x200000003250 = 0x383d; *(uint32_t*)0x200000003258 = 4; *(uint32_t*)0x20000000325c = 0xb0d4; *(uint64_t*)0x200000003260 = 0x503; *(uint32_t*)0x200000003268 = 2; *(uint32_t*)0x20000000326c = 0; *(uint32_t*)0x200000003270 = 5; *(uint32_t*)0x200000003274 = 2; *(uint64_t*)0x200000003278 = 0xfffffffffffffffb; *(uint64_t*)0x200000003280 = 0xff; *(uint64_t*)0x200000003288 = 3; *(uint64_t*)0x200000003290 = 0x259; *(uint64_t*)0x200000003298 = 0xbe9; *(uint64_t*)0x2000000032a0 = 0xff; *(uint64_t*)0x2000000032a8 = 6; *(uint64_t*)0x2000000032b0 = 0x800; *(uint64_t*)0x2000000032b8 = 9; res = syscall(__NR_statx, /*dfd=*/0xffffff9c, /*filename=*/0x200000003180ul, /*flags=*/4, /*mask=*/2, /*buffer=*/0x2000000031c0ul); if (res != -1) r[19] = *(uint32_t*)0x2000000031d4; break; case 28: *(uint32_t*)0x200000004300 = 5; *(uint32_t*)0x200000004304 = 0xee00; *(uint32_t*)0x200000004308 = 0xee00; *(uint32_t*)0x20000000430c = 3; *(uint32_t*)0x200000004310 = 0x7ff; *(uint32_t*)0x200000004314 = 2; *(uint16_t*)0x200000004318 = 5; *(uint32_t*)0x20000000431c = 2; *(uint64_t*)0x200000004320 = 0x401; *(uint64_t*)0x200000004328 = 3; *(uint64_t*)0x200000004330 = 0xfffffffffffffffe; *(uint32_t*)0x200000004338 = r[1]; *(uint32_t*)0x20000000433c = r[4]; *(uint16_t*)0x200000004340 = 0xfffe; *(uint16_t*)0x200000004342 = 0; *(uint64_t*)0x200000004348 = 0x2000000032c0; memcpy((void*)0x2000000032c0, 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4096); *(uint64_t*)0x200000004350 = 0x2000000042c0; memcpy((void*)0x2000000042c0, "\x14\xdc\x2c\x36\xc1\xa4\x73\x0f\x33\xf0\xa4\x77\x56\xb4\x37\x79\x2e\x9a\xc7\x8f\x74\x2f\x82\x1e\x32\x83\x41\xe0\x2b", 29); res = syscall(__NR_shmctl, /*shmid=*/3, /*cmd=*/1ul, /*buf=*/0x200000004300ul); if (res != -1) { r[20] = *(uint32_t*)0x200000004308; r[21] = *(uint32_t*)0x20000000433c; } break; case 29: memcpy((void*)0x200000004600, "./file0\000", 8); res = syscall(__NR_newfstatat, /*dfd=*/0xffffffffffffff9cul, /*file=*/0x200000004600ul, /*statbuf=*/0x200000004640ul, /*flag=*/0ul); if (res != -1) r[22] = *(uint32_t*)0x200000004658; break; case 30: res = syscall(__NR_fstat, /*fd=*/r[3], /*statbuf=*/0x2000000046c0ul); if (res != -1) { r[23] = *(uint32_t*)0x2000000046d8; r[24] = *(uint32_t*)0x2000000046dc; } break; case 31: *(uint32_t*)0x2000000058c0 = -1; *(uint32_t*)0x2000000058c4 = 0xee00; *(uint32_t*)0x2000000058c8 = -1; *(uint32_t*)0x2000000058cc = 2; *(uint32_t*)0x2000000058d0 = 9; *(uint32_t*)0x2000000058d4 = 2; *(uint16_t*)0x2000000058d8 = 4; *(uint32_t*)0x2000000058dc = 6; *(uint64_t*)0x2000000058e0 = 4; *(uint64_t*)0x2000000058e8 = 4; *(uint64_t*)0x2000000058f0 = 1; *(uint32_t*)0x2000000058f8 = 0; *(uint32_t*)0x2000000058fc = r[4]; *(uint16_t*)0x200000005900 = 0x40; *(uint16_t*)0x200000005902 = 0; *(uint64_t*)0x200000005908 = 0x200000004840; memcpy((void*)0x200000004840, "\xbe\x99\x9e\xee\x25\x89\x59\xe9\x3a\x2a\xa6\x8d\xc2\xcb\x1d\x93\xb8\x19\xd2\xb9\xd9\xe6\x78\xe2\xe2\x50\x6d\x54\x51\x0e\x92\x07\x28\xd7\x58\x15\xbb\x80\x27\xe6\xa0\x21\xfe\xbb\x8f\x09\x96\xf8\xad\xd6\x87\x7b\x74\xce\x5e\xac\xe7\x45\x04\xcf\x3a\x4f\x3a\xc4\x6a\x5a\x59\x40\x03\x42\x35\x19\x40\xbf\xb8\x76\x7d\xd9\x95\x5c\x9e\x9a\x99\x41", 84); *(uint64_t*)0x200000005910 = 0x2000000048c0; memcpy((void*)0x2000000048c0, 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4096); res = syscall(__NR_shmctl, /*shmid=*/0, /*cmd=*/7, /*buf=*/0x2000000058c0ul); if (res != -1) r[25] = *(uint32_t*)0x2000000058c4; break; case 32: memcpy((void*)0x200000005940, "./file0\000", 8); *(uint64_t*)0x200000005980 = 0x100000000; *(uint64_t*)0x200000005988 = 0x7d80; *(uint64_t*)0x200000005990 = 1; *(uint32_t*)0x200000005998 = 0x40; *(uint32_t*)0x20000000599c = -1; *(uint32_t*)0x2000000059a0 = 0; *(uint32_t*)0x2000000059a4 = 0; *(uint64_t*)0x2000000059a8 = 7; *(uint64_t*)0x2000000059b0 = 0xfffffffffffffffb; *(uint64_t*)0x2000000059b8 = 0; *(uint64_t*)0x2000000059c0 = 2; *(uint64_t*)0x2000000059c8 = 0xe6; *(uint64_t*)0x2000000059d0 = 2; *(uint64_t*)0x2000000059d8 = 4; *(uint64_t*)0x2000000059e0 = 0xa03f; *(uint64_t*)0x2000000059e8 = 0x10; *(uint64_t*)0x2000000059f0 = 7; memset((void*)0x2000000059f8, 0, 24); res = syscall(__NR_lstat, /*filename=*/0x200000005940ul, /*statbuf=*/0x200000005980ul); if (res != -1) { r[26] = *(uint32_t*)0x20000000599c; r[27] = *(uint32_t*)0x2000000059a0; } break; case 33: memcpy((void*)0x200000000780, 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8192); *(uint64_t*)0x200000005b80 = 0x200000002780; *(uint32_t*)0x200000002780 = 0x50; *(uint32_t*)0x200000002784 = 0xffffffda; *(uint64_t*)0x200000002788 = 7; *(uint32_t*)0x200000002790 = 7; *(uint32_t*)0x200000002794 = 0x2d; *(uint32_t*)0x200000002798 = 8; *(uint32_t*)0x20000000279c = 0x1020000; *(uint16_t*)0x2000000027a0 = 0xfffc; *(uint16_t*)0x2000000027a2 = 0x401; *(uint32_t*)0x2000000027a4 = 0x12; *(uint32_t*)0x2000000027a8 = 6; *(uint16_t*)0x2000000027ac = 0; *(uint16_t*)0x2000000027ae = 0; *(uint32_t*)0x2000000027b0 = 0x40; *(uint32_t*)0x2000000027b4 = 0xce; memset((void*)0x2000000027b8, 0, 24); *(uint64_t*)0x200000005b88 = 0x200000002800; *(uint32_t*)0x200000002800 = 0x18; *(uint32_t*)0x200000002804 = 0; *(uint64_t*)0x200000002808 = 6; *(uint64_t*)0x200000002810 = 0xbb; *(uint64_t*)0x200000005b90 = 0x200000002840; *(uint32_t*)0x200000002840 = 0x18; *(uint32_t*)0x200000002844 = 0; *(uint64_t*)0x200000002848 = 1; *(uint64_t*)0x200000002850 = 5; *(uint64_t*)0x200000005b98 = 0x200000002880; *(uint32_t*)0x200000002880 = 0x18; *(uint32_t*)0x200000002884 = 0xfffffff5; *(uint64_t*)0x200000002888 = 4; *(uint32_t*)0x200000002890 = 0; *(uint32_t*)0x200000002894 = 0; *(uint64_t*)0x200000005ba0 = 0x2000000028c0; *(uint32_t*)0x2000000028c0 = 0x18; *(uint32_t*)0x2000000028c4 = 0xfffffffe; *(uint64_t*)0x2000000028c8 = 3; *(uint32_t*)0x2000000028d0 = 7; *(uint32_t*)0x2000000028d4 = 0; *(uint64_t*)0x200000005ba8 = 0x200000002900; *(uint32_t*)0x200000002900 = 0x28; *(uint32_t*)0x200000002904 = 0; *(uint64_t*)0x200000002908 = 0x300000000000; *(uint64_t*)0x200000002910 = 1; *(uint64_t*)0x200000002918 = 8; *(uint32_t*)0x200000002920 = 0; *(uint32_t*)0x200000002924 = r[1]; *(uint64_t*)0x200000005bb0 = 0x200000002940; *(uint32_t*)0x200000002940 = 0x60; *(uint32_t*)0x200000002944 = 0; *(uint64_t*)0x200000002948 = 0xc; *(uint64_t*)0x200000002950 = 0; *(uint64_t*)0x200000002958 = 0xff; *(uint64_t*)0x200000002960 = 2; *(uint64_t*)0x200000002968 = 0x41; *(uint64_t*)0x200000002970 = 0x40; *(uint32_t*)0x200000002978 = 6; *(uint32_t*)0x20000000297c = 0x8dd; *(uint32_t*)0x200000002980 = 5; *(uint32_t*)0x200000002984 = 0; memset((void*)0x200000002988, 0, 24); *(uint64_t*)0x200000005bb8 = 0x2000000029c0; *(uint32_t*)0x2000000029c0 = 0x18; *(uint32_t*)0x2000000029c4 = 0xffffffda; *(uint64_t*)0x2000000029c8 = 9; *(uint32_t*)0x2000000029d0 = 5; *(uint32_t*)0x2000000029d4 = 0; *(uint64_t*)0x200000005bc0 = 0x200000002a00; *(uint32_t*)0x200000002a00 = 0x16; *(uint32_t*)0x200000002a04 = 0; *(uint64_t*)0x200000002a08 = 6; memset((void*)0x200000002a10, 255, 6); *(uint64_t*)0x200000005bc8 = 0x200000002a40; *(uint32_t*)0x200000002a40 = 0x20; *(uint32_t*)0x200000002a44 = 0; *(uint64_t*)0x200000002a48 = 0; *(uint64_t*)0x200000002a50 = 0; *(uint32_t*)0x200000002a58 = 0x1e; *(uint32_t*)0x200000002a5c = 0; *(uint64_t*)0x200000005bd0 = 0x200000002c00; *(uint32_t*)0x200000002c00 = 0x78; *(uint32_t*)0x200000002c04 = 0xfffffffe; *(uint64_t*)0x200000002c08 = 3; *(uint64_t*)0x200000002c10 = 8; *(uint32_t*)0x200000002c18 = 6; *(uint32_t*)0x200000002c1c = 0; *(uint64_t*)0x200000002c20 = 0; *(uint64_t*)0x200000002c28 = 8; *(uint64_t*)0x200000002c30 = 2; *(uint64_t*)0x200000002c38 = 8; *(uint64_t*)0x200000002c40 = 0x80; *(uint64_t*)0x200000002c48 = 5; *(uint32_t*)0x200000002c50 = 0x3482; *(uint32_t*)0x200000002c54 = 0xa246; *(uint32_t*)0x200000002c58 = 0x80000000; *(uint32_t*)0x200000002c5c = 0x4000; *(uint32_t*)0x200000002c60 = 0x3e08; *(uint32_t*)0x200000002c64 = r[7]; *(uint32_t*)0x200000002c68 = r[8]; *(uint32_t*)0x200000002c6c = 0x7f; *(uint32_t*)0x200000002c70 = 3; *(uint32_t*)0x200000002c74 = 0; *(uint64_t*)0x200000005bd8 = 0x200000002c80; *(uint32_t*)0x200000002c80 = 0x90; *(uint32_t*)0x200000002c84 = 0xffffffda; *(uint64_t*)0x200000002c88 = 2; *(uint64_t*)0x200000002c90 = 6; *(uint64_t*)0x200000002c98 = 0; *(uint64_t*)0x200000002ca0 = 2; *(uint64_t*)0x200000002ca8 = 8; *(uint32_t*)0x200000002cb0 = 0xfffffffc; *(uint32_t*)0x200000002cb4 = 9; *(uint64_t*)0x200000002cb8 = 1; *(uint64_t*)0x200000002cc0 = 3; *(uint64_t*)0x200000002cc8 = 2; *(uint64_t*)0x200000002cd0 = 5; *(uint64_t*)0x200000002cd8 = 0x761; *(uint64_t*)0x200000002ce0 = 7; *(uint32_t*)0x200000002ce8 = 0x58d95c3d; *(uint32_t*)0x200000002cec = 7; *(uint32_t*)0x200000002cf0 = 7; *(uint32_t*)0x200000002cf4 = 0x8000; *(uint32_t*)0x200000002cf8 = 8; *(uint32_t*)0x200000002cfc = r[9]; *(uint32_t*)0x200000002d00 = 0xee01; *(uint32_t*)0x200000002d04 = 0; *(uint32_t*)0x200000002d08 = 0x400; *(uint32_t*)0x200000002d0c = 0; *(uint64_t*)0x200000005be0 = 0x200000002d40; *(uint32_t*)0x200000002d40 = 0x158; *(uint32_t*)0x200000002d44 = 0; *(uint64_t*)0x200000002d48 = 0x8000000000000001; *(uint64_t*)0x200000002d50 = 0; *(uint64_t*)0x200000002d58 = 0; *(uint32_t*)0x200000002d60 = 0; *(uint32_t*)0x200000002d64 = 5; *(uint64_t*)0x200000002d68 = 2; *(uint64_t*)0x200000002d70 = 0x291; *(uint32_t*)0x200000002d78 = 3; *(uint32_t*)0x200000002d7c = 0; memcpy((void*)0x200000002d80, "a-$", 3); *(uint64_t*)0x200000002d88 = 6; *(uint64_t*)0x200000002d90 = 1; *(uint32_t*)0x200000002d98 = 0x1a; *(uint32_t*)0x200000002d9c = 0x5df9; memcpy((void*)0x200000002da0, "bpf_lsm_inode_getsecurity\000", 26); *(uint64_t*)0x200000002dc0 = 5; *(uint64_t*)0x200000002dc8 = 4; *(uint32_t*)0x200000002dd0 = 0; *(uint32_t*)0x200000002dd4 = 0; *(uint64_t*)0x200000002dd8 = 3; *(uint64_t*)0x200000002de0 = 2; *(uint32_t*)0x200000002de8 = 7; *(uint32_t*)0x200000002dec = 0x615d; memcpy((void*)0x200000002df0, "]F,[@%(", 7); *(uint64_t*)0x200000002df8 = 3; *(uint64_t*)0x200000002e00 = 4; *(uint32_t*)0x200000002e08 = 2; *(uint32_t*)0x200000002e0c = 5; memcpy((void*)0x200000002e10, "#*", 2); *(uint64_t*)0x200000002e18 = 6; *(uint64_t*)0x200000002e20 = 0xc; *(uint32_t*)0x200000002e28 = 1; *(uint32_t*)0x200000002e2c = 0x200; memset((void*)0x200000002e30, 33, 1); *(uint64_t*)0x200000002e38 = 2; *(uint64_t*)0x200000002e40 = 1; *(uint32_t*)0x200000002e48 = 3; *(uint32_t*)0x200000002e4c = 0xffff; memcpy((void*)0x200000002e50, "%[*", 3); *(uint64_t*)0x200000002e58 = 2; *(uint64_t*)0x200000002e60 = 1; *(uint32_t*)0x200000002e68 = 6; *(uint32_t*)0x200000002e6c = 0x10001; memset((void*)0x200000002e70, 187, 6); *(uint64_t*)0x200000002e78 = 2; *(uint64_t*)0x200000002e80 = 9; *(uint32_t*)0x200000002e88 = 3; *(uint32_t*)0x200000002e8c = 3; memcpy((void*)0x200000002e90, "\\$&", 3); *(uint64_t*)0x200000005be8 = 0x200000004380; *(uint32_t*)0x200000004380 = 0x280; *(uint32_t*)0x200000004384 = 0; *(uint64_t*)0x200000004388 = 7; *(uint64_t*)0x200000004390 = 1; *(uint64_t*)0x200000004398 = 2; *(uint64_t*)0x2000000043a0 = 0x9b; *(uint64_t*)0x2000000043a8 = 0xa; *(uint32_t*)0x2000000043b0 = 0x40; *(uint32_t*)0x2000000043b4 = 0x2b; *(uint64_t*)0x2000000043b8 = 1; *(uint64_t*)0x2000000043c0 = 0; *(uint64_t*)0x2000000043c8 = 0xf5; *(uint64_t*)0x2000000043d0 = 7; *(uint64_t*)0x2000000043d8 = 8; *(uint64_t*)0x2000000043e0 = 7; *(uint32_t*)0x2000000043e8 = 5; *(uint32_t*)0x2000000043ec = 9; *(uint32_t*)0x2000000043f0 = 0x1b; *(uint32_t*)0x2000000043f4 = 0xa000; *(uint32_t*)0x2000000043f8 = 4; *(uint32_t*)0x2000000043fc = r[10]; *(uint32_t*)0x200000004400 = r[12]; *(uint32_t*)0x200000004404 = 4; *(uint32_t*)0x200000004408 = 0x10000; *(uint32_t*)0x20000000440c = 0; *(uint64_t*)0x200000004410 = 4; *(uint64_t*)0x200000004418 = 6; *(uint32_t*)0x200000004420 = 0; *(uint32_t*)0x200000004424 = 0x7f; *(uint64_t*)0x200000004428 = 1; *(uint64_t*)0x200000004430 = 0; *(uint64_t*)0x200000004438 = 9; *(uint64_t*)0x200000004440 = 4; *(uint32_t*)0x200000004448 = 9; *(uint32_t*)0x20000000444c = 0x101; *(uint64_t*)0x200000004450 = 0; *(uint64_t*)0x200000004458 = 0x80; *(uint64_t*)0x200000004460 = 0x80000001; *(uint64_t*)0x200000004468 = 8; *(uint64_t*)0x200000004470 = 0x7fffffffffffffff; *(uint64_t*)0x200000004478 = 0xc14; *(uint32_t*)0x200000004480 = 7; *(uint32_t*)0x200000004484 = 2; *(uint32_t*)0x200000004488 = 5; *(uint32_t*)0x20000000448c = 0x1000; *(uint32_t*)0x200000004490 = 7; *(uint32_t*)0x200000004494 = r[13]; *(uint32_t*)0x200000004498 = r[16]; *(uint32_t*)0x20000000449c = 7; *(uint32_t*)0x2000000044a0 = 3; *(uint32_t*)0x2000000044a4 = 0; *(uint64_t*)0x2000000044a8 = 1; *(uint64_t*)0x2000000044b0 = 0x8000000000000000; *(uint32_t*)0x2000000044b8 = 0; *(uint32_t*)0x2000000044bc = 9; *(uint64_t*)0x2000000044c0 = 3; *(uint64_t*)0x2000000044c8 = 1; *(uint64_t*)0x2000000044d0 = 7; *(uint64_t*)0x2000000044d8 = 3; *(uint32_t*)0x2000000044e0 = 0x10000; *(uint32_t*)0x2000000044e4 = 0xfff; *(uint64_t*)0x2000000044e8 = 6; *(uint64_t*)0x2000000044f0 = 3; *(uint64_t*)0x2000000044f8 = 4; *(uint64_t*)0x200000004500 = 0xffffffff; *(uint64_t*)0x200000004508 = 5; *(uint64_t*)0x200000004510 = 1; *(uint32_t*)0x200000004518 = 0xcf; *(uint32_t*)0x20000000451c = 5; *(uint32_t*)0x200000004520 = 2; *(uint32_t*)0x200000004524 = 0x3000; *(uint32_t*)0x200000004528 = 0xf; *(uint32_t*)0x20000000452c = r[17]; *(uint32_t*)0x200000004530 = r[18]; *(uint32_t*)0x200000004534 = 0xdda; *(uint32_t*)0x200000004538 = 0x800; *(uint32_t*)0x20000000453c = 0; *(uint64_t*)0x200000004540 = 0; *(uint64_t*)0x200000004548 = 0x480; *(uint32_t*)0x200000004550 = 1; *(uint32_t*)0x200000004554 = 7; memset((void*)0x200000004558, 39, 1); *(uint64_t*)0x200000004560 = 3; *(uint64_t*)0x200000004568 = 0; *(uint64_t*)0x200000004570 = 6; *(uint64_t*)0x200000004578 = 6; *(uint32_t*)0x200000004580 = 0xae90; *(uint32_t*)0x200000004584 = 0x7fff; *(uint64_t*)0x200000004588 = 5; *(uint64_t*)0x200000004590 = 2; *(uint64_t*)0x200000004598 = 0xffff; *(uint64_t*)0x2000000045a0 = 0xb6; *(uint64_t*)0x2000000045a8 = 9; *(uint64_t*)0x2000000045b0 = 8; *(uint32_t*)0x2000000045b8 = 0x200; *(uint32_t*)0x2000000045bc = 3; *(uint32_t*)0x2000000045c0 = 6; *(uint32_t*)0x2000000045c4 = 0x6000; *(uint32_t*)0x2000000045c8 = 0xfffffff7; *(uint32_t*)0x2000000045cc = r[19]; *(uint32_t*)0x2000000045d0 = r[20]; *(uint32_t*)0x2000000045d4 = 4; *(uint32_t*)0x2000000045d8 = 6; *(uint32_t*)0x2000000045dc = 0; *(uint64_t*)0x2000000045e0 = 0; *(uint64_t*)0x2000000045e8 = 3; *(uint32_t*)0x2000000045f0 = 6; *(uint32_t*)0x2000000045f4 = 0xfffffffd; memcpy((void*)0x2000000045f8, "wlan0\000", 6); *(uint64_t*)0x200000005bf0 = 0x200000004740; *(uint32_t*)0x200000004740 = 0xa0; *(uint32_t*)0x200000004744 = 0xfffffffe; *(uint64_t*)0x200000004748 = 0x7fff; *(uint64_t*)0x200000004750 = 1; *(uint64_t*)0x200000004758 = 2; *(uint64_t*)0x200000004760 = 8; *(uint64_t*)0x200000004768 = 0x8001; *(uint32_t*)0x200000004770 = 0x9000; *(uint32_t*)0x200000004774 = 0; *(uint64_t*)0x200000004778 = 3; *(uint64_t*)0x200000004780 = 4; *(uint64_t*)0x200000004788 = 0x4283; *(uint64_t*)0x200000004790 = 6; *(uint64_t*)0x200000004798 = 7; *(uint64_t*)0x2000000047a0 = 1; *(uint32_t*)0x2000000047a8 = 4; *(uint32_t*)0x2000000047ac = 0x8000; *(uint32_t*)0x2000000047b0 = 0x7f; *(uint32_t*)0x2000000047b4 = 0x2000; *(uint32_t*)0x2000000047b8 = 0xa; *(uint32_t*)0x2000000047bc = r[22]; *(uint32_t*)0x2000000047c0 = r[24]; *(uint32_t*)0x2000000047c4 = 2; *(uint32_t*)0x2000000047c8 = 9; *(uint32_t*)0x2000000047cc = 0; *(uint64_t*)0x2000000047d0 = 0; *(uint32_t*)0x2000000047d8 = 0; *(uint32_t*)0x2000000047dc = 0; *(uint64_t*)0x200000005bf8 = 0x200000004800; *(uint32_t*)0x200000004800 = 0x20; *(uint32_t*)0x200000004804 = 0; *(uint64_t*)0x200000004808 = 0xa; *(uint32_t*)0x200000004810 = 8; *(uint32_t*)0x200000004814 = 0; *(uint32_t*)0x200000004818 = 0; *(uint32_t*)0x20000000481c = 0; *(uint64_t*)0x200000005c00 = 0x200000005a40; *(uint32_t*)0x200000005a40 = 0x130; *(uint32_t*)0x200000005a44 = 0; *(uint64_t*)0x200000005a48 = 0x800; *(uint64_t*)0x200000005a50 = 0x10000000; *(uint32_t*)0x200000005a58 = 9; *(uint32_t*)0x200000005a5c = 0; memset((void*)0x200000005a60, 0, 16); *(uint32_t*)0x200000005a70 = 4; *(uint32_t*)0x200000005a74 = 0xfffffff9; *(uint64_t*)0x200000005a78 = 8; *(uint32_t*)0x200000005a80 = 0xd; *(uint32_t*)0x200000005a84 = r[25]; *(uint32_t*)0x200000005a88 = r[27]; *(uint16_t*)0x200000005a8c = 0x4000; memset((void*)0x200000005a8e, 0, 2); *(uint64_t*)0x200000005a90 = 0xe; *(uint64_t*)0x200000005a98 = 1; *(uint64_t*)0x200000005aa0 = 9; *(uint64_t*)0x200000005aa8 = 4; *(uint64_t*)0x200000005ab0 = 0x75; *(uint32_t*)0x200000005ab8 = 0x10; *(uint32_t*)0x200000005abc = 0; *(uint64_t*)0x200000005ac0 = 0; *(uint32_t*)0x200000005ac8 = 0x2a; *(uint32_t*)0x200000005acc = 0; *(uint64_t*)0x200000005ad0 = 4; *(uint32_t*)0x200000005ad8 = 0x647; *(uint32_t*)0x200000005adc = 0; *(uint64_t*)0x200000005ae0 = 8; *(uint32_t*)0x200000005ae8 = 0xfffffffa; *(uint32_t*)0x200000005aec = 0; *(uint32_t*)0x200000005af0 = 4; *(uint32_t*)0x200000005af4 = 9; *(uint32_t*)0x200000005af8 = 0xf1; *(uint32_t*)0x200000005afc = 7; memset((void*)0x200000005b00, 0, 112); syz_fuse_handle_req(/*fd=*/r[6], /*buf=*/0x200000000780, /*len=*/0x2000, /*res=*/0x200000005b80); break; case 34: res = syscall(__NR_socket, /*domain=*/0x10ul, /*type=*/3ul, /*proto=*/0x10); if (res != -1) r[28] = res; break; case 35: memcpy((void*)0x200000005c40, "SEG6\000", 5); syz_genetlink_get_family_id(/*name=*/0x200000005c40, /*fd=*/r[28]); break; case 36: syz_init_net_socket(/*domain=*/0x24, /*type=*/2, /*proto=*/0); break; case 37: res = -1; res = syz_io_uring_complete(/*ring_ptr=*/0); if (res != -1) r[29] = res; break; case 38: *(uint32_t*)0x200000005c84 = 0x9c5d; *(uint32_t*)0x200000005c88 = 2; *(uint32_t*)0x200000005c8c = 1; *(uint32_t*)0x200000005c90 = 0x253; *(uint32_t*)0x200000005c98 = r[15]; memset((void*)0x200000005c9c, 0, 12); res = -1; res = syz_io_uring_setup(/*entries=*/0x19f7, /*params=*/0x200000005c80, /*ring_ptr=*/0x200000005d00, /*sqes_ptr=*/0x200000005d40); if (res != -1) { r[30] = *(uint64_t*)0x200000005d00; r[31] = *(uint64_t*)0x200000005d40; } break; case 39: *(uint8_t*)0x200000005dc0 = 0xb; *(uint8_t*)0x200000005dc1 = 0x28; *(uint16_t*)0x200000005dc2 = 0; *(uint32_t*)0x200000005dc4 = 0; *(uint64_t*)0x200000005dc8 = 3; *(uint64_t*)0x200000005dd0 = 0x200000005d80; *(uint64_t*)0x200000005d80 = 0; *(uint64_t*)0x200000005d88 = 0; *(uint32_t*)0x200000005dd8 = 1; *(uint32_t*)0x200000005ddc = 0x10; *(uint64_t*)0x200000005de0 = 1; *(uint16_t*)0x200000005de8 = 0; *(uint16_t*)0x200000005dea = 0; memset((void*)0x200000005dec, 0, 20); syz_io_uring_submit(/*ring_ptr=*/r[30], /*sqes_ptr=*/r[31], /*sqe=*/0x200000005dc0); break; case 40: res = -1; res = syz_kvm_setup_syzos_vm(/*fd=*/r[15], /*usermem=*/0x200000bff000); if (res != -1) r[32] = res; break; case 41: *(uint64_t*)0x200000005e80 = 0; *(uint64_t*)0x200000005e88 = 0x200000005e00; *(uint64_t*)0x200000005e00 = 0x12c; *(uint64_t*)0x200000005e08 = 0x18; *(uint64_t*)0x200000005e10 = 0; *(uint64_t*)0x200000005e18 = 0; *(uint64_t*)0x200000005e20 = 0x18; *(uint64_t*)0x200000005e28 = 4; *(uint64_t*)0x200000005e30 = 0x12d; *(uint64_t*)0x200000005e38 = 0x18; *(uint64_t*)0x200000005e40 = 2; *(uint64_t*)0x200000005e90 = 0x48; syz_kvm_add_vcpu(/*vm=*/r[32], /*text=*/0x200000005e80); break; case 42: *(uint64_t*)0x200000006100 = 0; *(uint64_t*)0x200000006108 = 0x200000005ec0; memcpy((void*)0x200000005ec0, 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560); *(uint64_t*)0x200000006110 = 0x230; *(uint64_t*)0x200000006140 = 1; *(uint64_t*)0x200000006148 = 7; syz_kvm_setup_cpu(/*fd=*/r[14], /*cpufd=*/r[29], /*usermem=*/0x200000c37000, /*text=*/0x200000006100, /*ntext=*/1, /*flags=KVM_SETUP_PPC64_LE*/1, /*opts=*/0x200000006140, /*nopt=*/1); break; case 43: syz_kvm_setup_syzos_vm(/*fd=*/r[29], /*usermem=*/0x200000c00000); break; case 44: *(uint32_t*)0x200000006180 = 0; syz_memcpy_off(/*ring_ptr=*/r[30], /*flag_off=SQ_FLAGS_OFFSET*/0x114, /*src=*/0x200000006180, /*src_off=*/0, /*nbytes=*/4); break; case 45: *(uint64_t*)0x200000006240 = 5; res = syscall(__NR_socketcall, /*call=*/1ul, /*args=*/0x200000006240ul); if (res != -1) r[33] = res; break; case 46: *(uint32_t*)0x200000006340 = 0xfffffffa; *(uint32_t*)0x200000006344 = r[11]; *(uint32_t*)0x200000006348 = r[27]; *(uint32_t*)0x20000000634c = 3; *(uint32_t*)0x200000006350 = 0xffff; *(uint32_t*)0x200000006354 = 0xe6b; *(uint16_t*)0x200000006358 = 7; *(uint32_t*)0x20000000635c = 0; *(uint64_t*)0x200000006360 = 0x357b; *(uint64_t*)0x200000006368 = 3; *(uint64_t*)0x200000006370 = 0x8000000000000000; *(uint32_t*)0x200000006378 = 0x74; *(uint32_t*)0x20000000637c = r[21]; *(uint16_t*)0x200000006380 = 0xc0b; *(uint16_t*)0x200000006382 = 0; *(uint64_t*)0x200000006388 = 0x200000006280; memcpy((void*)0x200000006280, "\x70\x10\x15\x9f\x68\xd5\xae\x90\x71\x37\xfa\x70\xd2\x86\xa1\x8b\xa4\x83\x48\xf8\x8d\x1f\xa0\x97\xcf\xe8\x2b\xb9\x55\x9e\x66\xc9\x7b\x4c\xcf\x3a\xcd\x9c\xe2\x40\x54\x49\x07\xf4\x53\x81\x70\xe4\x5e\x0c\x6d\xe8\xad\xfb\x6a\xe9\x4e\xd4\x4b\x61\x6a\x63\x73\x78\x14\xf1\x89\x44\x73\xd9\x51\x9f\x21\x30\xe8\xa0\xe0\x61\xc9\x6e\x46\xa9\x9a\x53\x16\xe4\x6b\x6b\x46\x13\x48\xbb\x03\xdd\xda\xd7\x06\x75\xbc\xda\x59\x21\xbd\xb5\x03\x8c\xc7\xdc\xad\xe7\xba\x3e\x10\x6c\xf3\x15\xe2\xad\x48\x81\x8a\x62\xc7", 123); *(uint64_t*)0x200000006390 = 0x200000006300; memcpy((void*)0x200000006300, "\x13\x68\x24\x8a\xd9\x08\xeb\x42\x50\x81\x23\x9c\x0a\x10\xa5\x14\xef\x06\xf1\x6f\xa3\x8b\xc5\x2b\x0f\x03\xb0\x4d\x36\xf5\x44\x26\x3c\xb4\xa0\xa3\xff\xbb\xaf\xa8\x00\x89\xcf\x8b\x02\x84\x1d\xf4\x33\xc6\xb9\x7d\xa8\xfb\xfe\x28\x5f\xcc\xd0\x5a\xd4", 61); res = syscall(__NR_shmctl, /*shmid=*/0x80000000, /*cmd=*/0xeul, /*buf=*/0x200000006340ul); if (res != -1) { r[34] = *(uint32_t*)0x200000006348; r[35] = *(uint32_t*)0x20000000637c; } break; case 47: memcpy((void*)0x2000000061c0, "fuse\000", 5); memcpy((void*)0x200000006200, "./file0\000", 8); memcpy((void*)0x2000000063c0, "fd", 2); *(uint8_t*)0x2000000063c2 = 0x3d; sprintf((char*)0x2000000063c3, "0x%016llx", (long long)r[33]); *(uint8_t*)0x2000000063d5 = 0x2c; memcpy((void*)0x2000000063d6, "rootmode", 8); *(uint8_t*)0x2000000063de = 0x3d; sprintf((char*)0x2000000063df, "%023llo", (long long)0x1000); *(uint8_t*)0x2000000063f6 = 0x2c; memcpy((void*)0x2000000063f7, "user_id", 7); *(uint8_t*)0x2000000063fe = 0x3d; sprintf((char*)0x2000000063ff, "%020llu", (long long)r[23]); *(uint8_t*)0x200000006413 = 0x2c; memcpy((void*)0x200000006414, "group_id", 8); *(uint8_t*)0x20000000641c = 0x3d; sprintf((char*)0x20000000641d, "%020llu", (long long)r[34]); *(uint8_t*)0x200000006431 = 0x2c; memcpy((void*)0x200000006432, "blksize", 7); *(uint8_t*)0x200000006439 = 0x3d; sprintf((char*)0x20000000643a, "0x%016llx", (long long)0x600); *(uint8_t*)0x20000000644c = 0x2c; memcpy((void*)0x20000000644d, "max_read", 8); *(uint8_t*)0x200000006455 = 0x3d; sprintf((char*)0x200000006456, "0x%016llx", (long long)0); *(uint8_t*)0x200000006468 = 0x2c; memcpy((void*)0x200000006469, "blksize", 7); *(uint8_t*)0x200000006470 = 0x3d; sprintf((char*)0x200000006471, "0x%016llx", (long long)0x1e00); *(uint8_t*)0x200000006483 = 0x2c; memcpy((void*)0x200000006484, "max_read", 8); *(uint8_t*)0x20000000648c = 0x3d; sprintf((char*)0x20000000648d, "0x%016llx", (long long)0x100000001); *(uint8_t*)0x20000000649f = 0x2c; memcpy((void*)0x2000000064a0, "default_permissions", 19); *(uint8_t*)0x2000000064b3 = 0x2c; memcpy((void*)0x2000000064b4, "default_permissions", 19); *(uint8_t*)0x2000000064c7 = 0x2c; memcpy((void*)0x2000000064c8, "euid<", 5); sprintf((char*)0x2000000064cd, "%020llu", (long long)r[13]); *(uint8_t*)0x2000000064e1 = 0x2c; memcpy((void*)0x2000000064e2, "subj_user", 9); *(uint8_t*)0x2000000064eb = 0x3d; memset((void*)0x2000000064ec, 44, 1); *(uint8_t*)0x2000000064ed = 0x2c; memcpy((void*)0x2000000064ee, "uid<", 4); sprintf((char*)0x2000000064f2, "%020llu", (long long)r[26]); *(uint8_t*)0x200000006506 = 0x2c; memcpy((void*)0x200000006507, "audit", 5); *(uint8_t*)0x20000000650c = 0x2c; memcpy((void*)0x20000000650d, "dont_measure", 12); *(uint8_t*)0x200000006519 = 0x2c; *(uint8_t*)0x20000000651a = 0; memcpy((void*)0x200000006540, "\xd3\xaa\x92", 3); syz_mount_image(/*fs=*/0x2000000061c0, /*dir=*/0x200000006200, /*flags=MS_NOATIME*/0x400, /*opts=*/0x2000000063c0, /*chdir=*/0, /*size=*/0, /*img=*/0x200000006540); break; case 48: memcpy((void*)0x200000006580, "/dev/i2c-#\000", 11); syz_open_dev(/*dev=*/0x200000006580, /*id=*/0x800, /*flags=O_NOATIME*/0x40000); break; case 49: memcpy((void*)0x2000000065c0, "cgroup\000", 7); syz_open_procfs(/*pid=*/r[5], /*file=*/0x2000000065c0); break; case 50: syz_open_pts(/*fd=*/r[14], /*flags=O_TRUNC|O_WRONLY*/0x201); break; case 51: syz_pidfd_open(/*pid=*/r[35], /*flags=*/0); break; case 52: res = syscall(__NR_pkey_alloc, /*flags=*/0ul, /*val=PKEY_DISABLE_WRITE*/2ul); if (res != -1) r[36] = res; break; case 53: syz_pkey_set(/*key=*/r[36], /*val=*/0); break; case 54: syz_socket_connect_nvme_tcp(); break; case 55: *(uint8_t*)0x200000006600 = 0x12; *(uint8_t*)0x200000006601 = 1; *(uint16_t*)0x200000006602 = 0x310; *(uint8_t*)0x200000006604 = 0xf; *(uint8_t*)0x200000006605 = 0x36; *(uint8_t*)0x200000006606 = 0x49; *(uint8_t*)0x200000006607 = 8; *(uint16_t*)0x200000006608 = 0x7d0; *(uint16_t*)0x20000000660a = 0x4101; *(uint16_t*)0x20000000660c = 0x4624; *(uint8_t*)0x20000000660e = 1; *(uint8_t*)0x20000000660f = 2; *(uint8_t*)0x200000006610 = 3; *(uint8_t*)0x200000006611 = 1; *(uint8_t*)0x200000006612 = 9; *(uint8_t*)0x200000006613 = 2; *(uint16_t*)0x200000006614 = 0x4f2; *(uint8_t*)0x200000006616 = 3; *(uint8_t*)0x200000006617 = 1; *(uint8_t*)0x200000006618 = 0xa2; *(uint8_t*)0x200000006619 = 0x40; *(uint8_t*)0x20000000661a = 0x64; *(uint8_t*)0x20000000661b = 9; *(uint8_t*)0x20000000661c = 4; *(uint8_t*)0x20000000661d = 0xc2; *(uint8_t*)0x20000000661e = 7; *(uint8_t*)0x20000000661f = 0xa; *(uint8_t*)0x200000006620 = 0x50; *(uint8_t*)0x200000006621 = 0xb3; *(uint8_t*)0x200000006622 = 0x17; *(uint8_t*)0x200000006623 = 7; *(uint8_t*)0x200000006624 = 9; *(uint8_t*)0x200000006625 = 0x21; *(uint16_t*)0x200000006626 = 3; *(uint8_t*)0x200000006628 = 0xdf; *(uint8_t*)0x200000006629 = 1; *(uint8_t*)0x20000000662a = 0x22; *(uint16_t*)0x20000000662b = 0x238; *(uint8_t*)0x20000000662d = 7; *(uint8_t*)0x20000000662e = 0x24; *(uint8_t*)0x20000000662f = 1; *(uint8_t*)0x200000006630 = 2; *(uint8_t*)0x200000006631 = 2; *(uint16_t*)0x200000006632 = 2; *(uint8_t*)0x200000006634 = 0xb; *(uint8_t*)0x200000006635 = 0x24; *(uint8_t*)0x200000006636 = 2; *(uint8_t*)0x200000006637 = 1; *(uint8_t*)0x200000006638 = 0xde; *(uint8_t*)0x200000006639 = 2; *(uint8_t*)0x20000000663a = 0; *(uint8_t*)0x20000000663b = 5; memcpy((void*)0x20000000663c, "\x11\x6d\xf7", 3); *(uint8_t*)0x20000000663f = 0xa; *(uint8_t*)0x200000006640 = 0x24; *(uint8_t*)0x200000006641 = 2; *(uint8_t*)0x200000006642 = 2; *(uint16_t*)0x200000006643 = 8; *(uint16_t*)0x200000006645 = 3; *(uint8_t*)0x200000006647 = 7; memset((void*)0x200000006648, 59, 1); *(uint8_t*)0x200000006649 = 0xa; *(uint8_t*)0x20000000664a = 0x24; *(uint8_t*)0x20000000664b = 2; *(uint8_t*)0x20000000664c = 1; *(uint8_t*)0x20000000664d = 4; *(uint8_t*)0x20000000664e = 3; *(uint8_t*)0x20000000664f = 0x1a; *(uint8_t*)0x200000006650 = 9; memcpy((void*)0x200000006651, "\x0f\x58", 2); *(uint8_t*)0x200000006653 = 0xc; *(uint8_t*)0x200000006654 = 0x24; *(uint8_t*)0x200000006655 = 2; *(uint8_t*)0x200000006656 = 2; *(uint16_t*)0x200000006657 = 0xf270; *(uint16_t*)0x200000006659 = 0x100; *(uint8_t*)0x20000000665b = 7; memcpy((void*)0x20000000665c, "\x31\x29\xf9", 3); *(uint8_t*)0x20000000665f = 0xb; *(uint8_t*)0x200000006660 = 0x24; *(uint8_t*)0x200000006661 = 2; *(uint8_t*)0x200000006662 = 1; *(uint8_t*)0x200000006663 = 1; *(uint8_t*)0x200000006664 = 3; *(uint8_t*)0x200000006665 = 0xf9; *(uint8_t*)0x200000006666 = 0xa3; memcpy((void*)0x200000006667, "\x54\x06\x13", 3); *(uint8_t*)0x20000000666a = 9; *(uint8_t*)0x20000000666b = 5; *(uint8_t*)0x20000000666c = 3; *(uint8_t*)0x20000000666d = 0x38; *(uint16_t*)0x20000000666e = 8; *(uint8_t*)0x200000006670 = 1; *(uint8_t*)0x200000006671 = 0xf9; *(uint8_t*)0x200000006672 = 0; *(uint8_t*)0x200000006673 = 7; *(uint8_t*)0x200000006674 = 0x25; *(uint8_t*)0x200000006675 = 1; *(uint8_t*)0x200000006676 = 1; *(uint8_t*)0x200000006677 = 0x80; *(uint16_t*)0x200000006678 = 0xffb0; *(uint8_t*)0x20000000667a = 0x62; *(uint8_t*)0x20000000667b = 0xe; memcpy((void*)0x20000000667c, "\x0b\xef\x67\x9d\x63\x59\xd7\x1a\x14\x4a\x38\xa2\x28\x34\xd1\x2b\xd1\x9c\x60\xb6\x58\x29\xf4\x4e\xbe\x6b\x12\x58\xa3\xa7\xa0\xcc\x60\xf3\x00\x07\xc2\xc4\xd2\xa3\xcb\x88\xfb\x6b\xeb\x58\x0e\x62\x81\x47\x11\x4f\xfc\x6a\x4e\x39\xb1\x9e\x71\x8f\xc2\xcd\x0f\xa5\xaf\x68\x86\x49\xab\xe3\xdb\x58\xd0\x70\x72\x03\x28\x3b\x6b\xdc\xa0\x5f\x49\xfb\x16\xb3\x61\x8f\xcf\x4d\xd0\x1c\xb2\xef\x35\x09", 96); *(uint8_t*)0x2000000066dc = 9; *(uint8_t*)0x2000000066dd = 5; *(uint8_t*)0x2000000066de = 4; *(uint8_t*)0x2000000066df = 0; *(uint16_t*)0x2000000066e0 = 0x20; *(uint8_t*)0x2000000066e2 = 1; *(uint8_t*)0x2000000066e3 = 2; *(uint8_t*)0x2000000066e4 = 5; *(uint8_t*)0x2000000066e5 = 0x4e; *(uint8_t*)0x2000000066e6 = 0xa; memcpy((void*)0x2000000066e7, "\xaa\xde\x99\xcc\xf3\x48\x06\x1a\xd9\x22\x25\xe0\x5a\x39\x6a\x2e\xbe\x89\x2c\xa6\x5d\xe9\xef\xa6\x65\x82\x1e\x34\x20\x0c\x5c\xaa\x94\x3c\x9b\x1a\x3e\xb1\x08\x28\xe1\x38\x15\xe6\x12\x0c\x47\x87\xa4\xd3\x95\xb1\xe3\x2a\x8b\xa1\xff\xb9\x91\x37\x58\x79\xd5\x17\x86\x2d\xe6\xe9\xcb\x6f\x72\x33\x35\xdd\x15\x6a", 76); *(uint8_t*)0x200000006733 = 9; *(uint8_t*)0x200000006734 = 5; *(uint8_t*)0x200000006735 = 3; *(uint8_t*)0x200000006736 = 0xc; *(uint16_t*)0x200000006737 = 0x3ff; *(uint8_t*)0x200000006739 = 7; *(uint8_t*)0x20000000673a = 0; *(uint8_t*)0x20000000673b = 0x7f; *(uint8_t*)0x20000000673c = 0x33; *(uint8_t*)0x20000000673d = 0xe; memcpy((void*)0x20000000673e, "\x08\xb9\x28\xc5\x63\xb3\xfb\xc1\x36\xbe\xaf\x22\xbf\x46\xe0\xcf\x55\xe3\xf2\x62\x48\x5f\x30\xb2\x8a\x3f\x9a\x3e\xc9\x01\xce\x80\x66\xc6\x78\x8d\x46\x95\x26\xc5\x5b\xf0\xc2\xb3\xca\x50\x05\x53\x9a", 49); *(uint8_t*)0x20000000676f = 9; *(uint8_t*)0x200000006770 = 5; *(uint8_t*)0x200000006771 = 0xb; *(uint8_t*)0x200000006772 = 4; *(uint16_t*)0x200000006773 = 0x3ff; *(uint8_t*)0x200000006775 = 3; *(uint8_t*)0x200000006776 = 0x40; *(uint8_t*)0x200000006777 = 0x7f; *(uint8_t*)0x200000006778 = 7; *(uint8_t*)0x200000006779 = 0x25; *(uint8_t*)0x20000000677a = 1; *(uint8_t*)0x20000000677b = 0x87; *(uint8_t*)0x20000000677c = 9; *(uint16_t*)0x20000000677d = 0x4e; *(uint8_t*)0x20000000677f = 0xcb; *(uint8_t*)0x200000006780 = 0x11; memcpy((void*)0x200000006781, "\x3b\x9d\xca\xcc\x67\x90\x86\xd7\x8f\x92\x7a\xb6\x34\x93\x5a\x18\x81\x3b\x23\xcc\xef\xfe\xa6\x9b\x63\x0a\xa9\x7c\xc4\x69\x90\x7a\xfa\xc2\xa3\x03\x27\xad\xeb\x90\x1d\x9f\xb9\x00\xad\x82\x13\x80\x98\xcb\xff\x5f\xed\x7f\xee\x2c\x7d\x70\x12\x90\xce\x4a\xd0\x20\xa9\xda\x29\x67\x5f\x8f\x05\x13\x99\x87\x9d\xb5\x70\x22\xb8\x9c\x99\x01\x20\x51\x3a\xaa\x70\xc5\x18\x47\xb1\x28\xdd\x73\xbd\xea\x25\xcb\xb5\x45\xc1\xae\x83\x52\x02\x4c\xa9\x3c\xd7\xea\x88\x1c\xbb\x09\x20\xee\xde\xf0\x72\xef\xe9\xda\x61\xb7\xbd\x77\xa3\xc0\x85\xd7\x12\xc1\x42\xca\x88\xc3\x9f\x8e\xdd\x17\xd6\xfb\x9a\x7e\xf8\xd0\xfa\xd5\xa1\x5a\x33\x3e\x7e\xd0\x5e\x7e\x9a\xe6\xe2\xa4\x64\xc3\x15\x9a\xb1\xa6\x0e\x33\xaf\xbf\x29\xa2\xf6\x78\xc8\xc9\xe2\xf8\xf7\xa8\xd0\x3d\x55\x82\x52\x9b\x27\x7b\x4b\xe8\x55\x83\xe5\xd8\x1b\xc9\x57\x49\x77\x30\x42", 201); *(uint8_t*)0x20000000684a = 9; *(uint8_t*)0x20000000684b = 5; *(uint8_t*)0x20000000684c = 1; *(uint8_t*)0x20000000684d = 3; *(uint16_t*)0x20000000684e = 8; *(uint8_t*)0x200000006850 = 0xe; *(uint8_t*)0x200000006851 = 8; *(uint8_t*)0x200000006852 = 0x7f; *(uint8_t*)0x200000006853 = 0x72; *(uint8_t*)0x200000006854 = 6; memcpy((void*)0x200000006855, "\x6e\xe2\x41\x04\x69\xb7\xa8\xb2\x3e\x32\x55\xa5\x54\xb6\x3d\x5b\xeb\x1b\x34\xb4\x87\x18\x94\xe3\xdf\x69\xe7\x55\x8c\xe5\x6c\xc8\x3b\x83\xae\x1a\xc9\xd1\xde\xc0\x88\x2d\x04\x0a\x78\x01\xa3\x00\xc7\xea\xc2\x6d\x78\xd2\xda\xff\x6b\xd4\x7c\xac\xa5\x00\xd4\x6c\x1b\x5a\x0b\x9e\x1a\xda\x0e\x7b\x60\x6b\x6f\xd6\xb3\x9d\xb8\x1c\x7c\x95\x4c\x04\xd4\xed\xe9\x80\xea\x2c\xa8\x0b\x11\x3b\xdb\x4b\xe7\x47\xe1\xb6\xdc\x92\x81\xd7\x7e\x85\x68\x3a\xaa\xc6\x53\x4c", 112); *(uint8_t*)0x2000000068c5 = 9; *(uint8_t*)0x2000000068c6 = 5; *(uint8_t*)0x2000000068c7 = 0xb; *(uint8_t*)0x2000000068c8 = 0xc; *(uint16_t*)0x2000000068c9 = 0x60e1; *(uint8_t*)0x2000000068cb = 0; *(uint8_t*)0x2000000068cc = 1; *(uint8_t*)0x2000000068cd = 7; *(uint8_t*)0x2000000068ce = 9; *(uint8_t*)0x2000000068cf = 5; *(uint8_t*)0x2000000068d0 = 0; *(uint8_t*)0x2000000068d1 = 0; *(uint16_t*)0x2000000068d2 = 0x10; *(uint8_t*)0x2000000068d4 = 5; *(uint8_t*)0x2000000068d5 = 1; *(uint8_t*)0x2000000068d6 = 0x77; *(uint8_t*)0x2000000068d7 = 9; *(uint8_t*)0x2000000068d8 = 5; *(uint8_t*)0x2000000068d9 = 5; *(uint8_t*)0x2000000068da = 0; *(uint16_t*)0x2000000068db = 0x208; *(uint8_t*)0x2000000068dd = 0x1b; *(uint8_t*)0x2000000068de = 9; *(uint8_t*)0x2000000068df = 7; *(uint8_t*)0x2000000068e0 = 9; *(uint8_t*)0x2000000068e1 = 5; *(uint8_t*)0x2000000068e2 = 0xf; *(uint8_t*)0x2000000068e3 = 0; *(uint16_t*)0x2000000068e4 = 0x40; *(uint8_t*)0x2000000068e6 = 0x30; *(uint8_t*)0x2000000068e7 = 5; *(uint8_t*)0x2000000068e8 = 7; *(uint8_t*)0x2000000068e9 = 0x50; *(uint8_t*)0x2000000068ea = 6; memcpy((void*)0x2000000068eb, "\x01\x1d\xaf\x9a\xd3\xae\xa9\x56\xd0\x18\x4e\x89\x07\xd7\xb0\xb0\xa6\xaa\x9e\x92\x1a\xc6\x4d\x7a\x9e\x5a\x0c\xe5\xb5\xe0\xaf\xb4\x78\x68\xc9\xc4\xa7\x6b\x65\x09\x83\x5b\xf9\xee\x45\xa7\x89\x1e\xaa\xd1\x72\xa8\x75\x63\x4f\x7f\x36\x26\x01\x24\x66\x9b\x2d\x1b\x04\xc2\xfd\xa3\x8c\xc9\x36\x92\x1c\xb5\x61\x24\x5e\xfa", 78); *(uint8_t*)0x200000006939 = 0xb7; *(uint8_t*)0x20000000693a = 0x21; memcpy((void*)0x20000000693b, "\x53\x54\x2a\x37\x44\x9c\x9d\x1a\x4e\x69\x6a\x99\x52\x7d\x5a\xd5\xbd\xad\x1c\x7e\x72\x41\x28\xdf\x50\x29\x5a\xa0\xc6\x14\x01\xca\x6c\xd5\xcd\x35\x69\x77\xf6\x17\xe8\xb1\x14\x48\x46\x62\x69\x11\x6a\xf9\x3b\x9d\xce\x05\xde\xd4\x87\x92\x71\x9f\x65\xbf\xa9\x1d\xa1\x6b\x85\xee\x1d\x62\x36\x08\x4d\x81\x70\xf9\x7c\x0a\x74\xf1\x02\x66\x3c\x64\x5b\x0e\xe1\xb0\xfa\x79\x04\xe6\x46\x43\x8d\x8b\x16\x21\x86\x04\x56\x1c\x1a\xbb\x98\x28\x9e\x3e\xcb\xa8\x8e\x78\xf6\x73\x61\x47\x87\x74\x46\x2a\x4d\x82\x74\x96\x46\x45\x20\x04\xb2\x48\x20\x82\xe9\xc1\xb2\xf2\x97\x24\x19\xf6\xf7\x52\xe1\xbe\xc5\xe1\x92\x5f\xce\x21\x5e\xdb\x82\x65\x34\x4d\xa8\x5b\x85\x16\x4d\xb3\xc6\x33\xe4\xe4\x31\xfe\xc4\xc6\x09\x66\x4e\xac\x2b\x6b\x1f\x5f\x7b\xdc\x10", 181); *(uint8_t*)0x2000000069f0 = 9; *(uint8_t*)0x2000000069f1 = 5; *(uint8_t*)0x2000000069f2 = 0xc; *(uint8_t*)0x2000000069f3 = 0x10; *(uint16_t*)0x2000000069f4 = 0x10; *(uint8_t*)0x2000000069f6 = 3; *(uint8_t*)0x2000000069f7 = 0xf9; *(uint8_t*)0x2000000069f8 = -1; *(uint8_t*)0x2000000069f9 = 0xba; *(uint8_t*)0x2000000069fa = 0x23; memcpy((void*)0x2000000069fb, "\x5c\x48\xa5\x1f\x46\xfa\x07\x8d\x84\xce\x43\x4e\x72\x2a\x7f\xa4\xe7\x02\x1a\xe9\xd9\xb7\x66\x77\x36\x6d\xe6\xa1\x0a\xb3\xe9\x4e\x09\x69\xd7\xfc\x2a\x24\x53\x6e\x11\x50\xd9\x46\x72\xc5\x41\x8b\x02\x95\x1d\xef\x7e\x20\xc7\xdf\xe0\xaa\x26\xad\xbf\x0b\xfd\x8f\x6d\xd3\x51\xfa\x30\x99\x07\x13\x53\x71\x34\xaf\x9c\x14\xfa\x84\xde\xe2\xb9\x5a\xf8\xe1\x34\x54\x2b\x5a\x1a\xd5\x40\x32\x9a\x97\xcb\xdd\x1a\x24\x22\xf1\x3e\x6e\x03\xb4\x9f\x71\x05\xa6\xbf\x49\x00\xea\x72\x3f\xbe\x14\xf2\x1d\x18\x2a\xee\xf2\xcf\x51\x62\x59\x1f\x8b\xd3\x8b\x85\xd4\x5d\x72\x3c\xef\x02\x13\x2b\x5e\x45\x46\x7d\xd8\xd4\x30\xc3\x78\xb8\xbf\x2d\x98\x40\x32\x67\x01\x03\x79\xde\x7b\xd0\x4c\x80\x0d\xfd\x5f\xae\x0c\x0d\xda\xc0\xb5\xcf\xfd\xe9\x8c\xa4\x00\xdc\xe3\x0d\xdd", 184); *(uint8_t*)0x200000006ab3 = 9; *(uint8_t*)0x200000006ab4 = 4; *(uint8_t*)0x200000006ab5 = 0xfc; *(uint8_t*)0x200000006ab6 = 4; *(uint8_t*)0x200000006ab7 = 1; *(uint8_t*)0x200000006ab8 = -1; *(uint8_t*)0x200000006ab9 = 6; *(uint8_t*)0x200000006aba = 0x39; *(uint8_t*)0x200000006abb = 0xc; *(uint8_t*)0x200000006abc = 9; *(uint8_t*)0x200000006abd = 5; *(uint8_t*)0x200000006abe = 0; *(uint8_t*)0x200000006abf = 2; *(uint16_t*)0x200000006ac0 = 0x400; *(uint8_t*)0x200000006ac2 = 9; *(uint8_t*)0x200000006ac3 = 0xdf; *(uint8_t*)0x200000006ac4 = 2; *(uint8_t*)0x200000006ac5 = 7; *(uint8_t*)0x200000006ac6 = 0x25; *(uint8_t*)0x200000006ac7 = 1; *(uint8_t*)0x200000006ac8 = 3; *(uint8_t*)0x200000006ac9 = 8; *(uint16_t*)0x200000006aca = 0x8000; *(uint8_t*)0x200000006acc = 9; *(uint8_t*)0x200000006acd = 4; *(uint8_t*)0x200000006ace = 0x9d; *(uint8_t*)0x200000006acf = 1; *(uint8_t*)0x200000006ad0 = 3; *(uint8_t*)0x200000006ad1 = 0x48; *(uint8_t*)0x200000006ad2 = 0x48; *(uint8_t*)0x200000006ad3 = 0x40; *(uint8_t*)0x200000006ad4 = 0xa; *(uint8_t*)0x200000006ad5 = 9; *(uint8_t*)0x200000006ad6 = 5; *(uint8_t*)0x200000006ad7 = 1; *(uint8_t*)0x200000006ad8 = 0x10; *(uint16_t*)0x200000006ad9 = 0x40; *(uint8_t*)0x200000006adb = 2; *(uint8_t*)0x200000006adc = 0xf1; *(uint8_t*)0x200000006add = 0xc; *(uint8_t*)0x200000006ade = 7; *(uint8_t*)0x200000006adf = 0x25; *(uint8_t*)0x200000006ae0 = 1; *(uint8_t*)0x200000006ae1 = 0x81; *(uint8_t*)0x200000006ae2 = 0x81; *(uint16_t*)0x200000006ae3 = 5; *(uint8_t*)0x200000006ae5 = 9; *(uint8_t*)0x200000006ae6 = 5; *(uint8_t*)0x200000006ae7 = 7; *(uint8_t*)0x200000006ae8 = 8; *(uint16_t*)0x200000006ae9 = 0x40; *(uint8_t*)0x200000006aeb = 6; *(uint8_t*)0x200000006aec = 0; *(uint8_t*)0x200000006aed = 1; *(uint8_t*)0x200000006aee = 7; *(uint8_t*)0x200000006aef = 0x25; *(uint8_t*)0x200000006af0 = 1; *(uint8_t*)0x200000006af1 = 2; *(uint8_t*)0x200000006af2 = 0; *(uint16_t*)0x200000006af3 = 0x10; *(uint8_t*)0x200000006af5 = 6; *(uint8_t*)0x200000006af6 = 0xe; memcpy((void*)0x200000006af7, "\x55\x5d\xc7\x8c", 4); *(uint8_t*)0x200000006afb = 9; *(uint8_t*)0x200000006afc = 5; *(uint8_t*)0x200000006afd = 5; *(uint8_t*)0x200000006afe = 4; *(uint16_t*)0x200000006aff = 0x200; *(uint8_t*)0x200000006b01 = 9; *(uint8_t*)0x200000006b02 = 0x40; *(uint8_t*)0x200000006b03 = 3; *(uint32_t*)0x200000006c00 = 0xa; *(uint64_t*)0x200000006c04 = 0x200000006b40; *(uint8_t*)0x200000006b40 = 0xa; *(uint8_t*)0x200000006b41 = 6; *(uint16_t*)0x200000006b42 = 0x200; *(uint8_t*)0x200000006b44 = 0x3b; *(uint8_t*)0x200000006b45 = 5; *(uint8_t*)0x200000006b46 = 9; *(uint8_t*)0x200000006b47 = 0x40; *(uint8_t*)0x200000006b48 = 0xa4; *(uint8_t*)0x200000006b49 = 0; *(uint32_t*)0x200000006c0c = 0x30; *(uint64_t*)0x200000006c10 = 0x200000006b80; *(uint8_t*)0x200000006b80 = 5; *(uint8_t*)0x200000006b81 = 0xf; *(uint16_t*)0x200000006b82 = 0x30; *(uint8_t*)0x200000006b84 = 3; *(uint8_t*)0x200000006b85 = 3; *(uint8_t*)0x200000006b86 = 0x10; *(uint8_t*)0x200000006b87 = 0xb; *(uint8_t*)0x200000006b88 = 0x10; *(uint8_t*)0x200000006b89 = 0x10; *(uint8_t*)0x200000006b8a = 0xa; *(uint8_t*)0x200000006b8b = 0x1c; STORE_BY_BITMASK(uint32_t, , 0x200000006b8c, 1, 0, 5); STORE_BY_BITMASK(uint32_t, , 0x200000006b8c, 0x7ffffd3, 5, 27); *(uint16_t*)0x200000006b90 = 0xff00; *(uint16_t*)0x200000006b92 = 0x1fb; *(uint32_t*)0x200000006b94 = 0; *(uint8_t*)0x200000006b98 = 0x18; *(uint8_t*)0x200000006b99 = 0x10; *(uint8_t*)0x200000006b9a = 0xa; *(uint8_t*)0x200000006b9b = 0xf; STORE_BY_BITMASK(uint32_t, , 0x200000006b9c, 3, 0, 5); STORE_BY_BITMASK(uint32_t, , 0x200000006b9c, 8, 5, 27); *(uint16_t*)0x200000006ba0 = 0xff00; *(uint16_t*)0x200000006ba2 = 0xd00; *(uint32_t*)0x200000006ba4 = 0; *(uint32_t*)0x200000006ba8 = 0xffc0cf; *(uint32_t*)0x200000006bac = 0xff0000; *(uint32_t*)0x200000006c18 = 1; *(uint32_t*)0x200000006c1c = 4; *(uint64_t*)0x200000006c20 = 0x200000006bc0; *(uint8_t*)0x200000006bc0 = 4; *(uint8_t*)0x200000006bc1 = 3; *(uint16_t*)0x200000006bc2 = 0x42f; res = -1; res = syz_usb_connect(/*speed=USB_SPEED_HIGH*/3, /*dev_len=*/0x504, /*dev=*/0x200000006600, /*conn_descs=*/0x200000006c00); if (res != -1) r[37] = res; break; case 56: *(uint8_t*)0x200000006c40 = 0x12; *(uint8_t*)0x200000006c41 = 1; *(uint16_t*)0x200000006c42 = 0x200; *(uint8_t*)0x200000006c44 = -1; *(uint8_t*)0x200000006c45 = -1; *(uint8_t*)0x200000006c46 = -1; *(uint8_t*)0x200000006c47 = 0x40; *(uint16_t*)0x200000006c48 = 0xcf3; *(uint16_t*)0x200000006c4a = 0x9271; *(uint16_t*)0x200000006c4c = 0x108; *(uint8_t*)0x200000006c4e = 1; *(uint8_t*)0x200000006c4f = 2; *(uint8_t*)0x200000006c50 = 3; *(uint8_t*)0x200000006c51 = 1; *(uint8_t*)0x200000006c52 = 9; *(uint8_t*)0x200000006c53 = 2; *(uint16_t*)0x200000006c54 = 0x48; *(uint8_t*)0x200000006c56 = 1; *(uint8_t*)0x200000006c57 = 1; *(uint8_t*)0x200000006c58 = 0; *(uint8_t*)0x200000006c59 = 0x80; *(uint8_t*)0x200000006c5a = 0xfa; *(uint8_t*)0x200000006c5b = 9; *(uint8_t*)0x200000006c5c = 4; *(uint8_t*)0x200000006c5d = 0; *(uint8_t*)0x200000006c5e = 0; *(uint8_t*)0x200000006c5f = 6; *(uint8_t*)0x200000006c60 = -1; *(uint8_t*)0x200000006c61 = 0; *(uint8_t*)0x200000006c62 = 0; *(uint8_t*)0x200000006c63 = 0; *(uint8_t*)0x200000006c64 = 9; *(uint8_t*)0x200000006c65 = 5; *(uint8_t*)0x200000006c66 = 1; *(uint8_t*)0x200000006c67 = 2; *(uint16_t*)0x200000006c68 = 0x200; *(uint8_t*)0x200000006c6a = 0; *(uint8_t*)0x200000006c6b = 0; *(uint8_t*)0x200000006c6c = 0; *(uint8_t*)0x200000006c6d = 9; *(uint8_t*)0x200000006c6e = 5; *(uint8_t*)0x200000006c6f = 0x82; *(uint8_t*)0x200000006c70 = 2; *(uint16_t*)0x200000006c71 = 0x200; *(uint8_t*)0x200000006c73 = 0; *(uint8_t*)0x200000006c74 = 0; *(uint8_t*)0x200000006c75 = 0; *(uint8_t*)0x200000006c76 = 9; *(uint8_t*)0x200000006c77 = 5; *(uint8_t*)0x200000006c78 = 0x83; *(uint8_t*)0x200000006c79 = 3; *(uint16_t*)0x200000006c7a = 0x40; *(uint8_t*)0x200000006c7c = 1; *(uint8_t*)0x200000006c7d = 0; *(uint8_t*)0x200000006c7e = 0; *(uint8_t*)0x200000006c7f = 9; *(uint8_t*)0x200000006c80 = 5; *(uint8_t*)0x200000006c81 = 4; *(uint8_t*)0x200000006c82 = 3; *(uint16_t*)0x200000006c83 = 0x40; *(uint8_t*)0x200000006c85 = 1; *(uint8_t*)0x200000006c86 = 0; *(uint8_t*)0x200000006c87 = 0; *(uint8_t*)0x200000006c88 = 9; *(uint8_t*)0x200000006c89 = 5; *(uint8_t*)0x200000006c8a = 5; *(uint8_t*)0x200000006c8b = 2; *(uint16_t*)0x200000006c8c = 0x200; *(uint8_t*)0x200000006c8e = 0; *(uint8_t*)0x200000006c8f = 0; *(uint8_t*)0x200000006c90 = 0; *(uint8_t*)0x200000006c91 = 9; *(uint8_t*)0x200000006c92 = 5; *(uint8_t*)0x200000006c93 = 6; *(uint8_t*)0x200000006c94 = 2; *(uint16_t*)0x200000006c95 = 0x200; *(uint8_t*)0x200000006c97 = 0; *(uint8_t*)0x200000006c98 = 0; *(uint8_t*)0x200000006c99 = 0; res = -1; res = syz_usb_connect_ath9k(/*speed=*/3, /*dev_len=*/0x5a, /*dev=*/0x200000006c40, /*conn_descs=*/0); if (res != -1) r[38] = res; break; case 57: *(uint8_t*)0x200000006cc0 = 0x12; *(uint8_t*)0x200000006cc1 = 1; *(uint16_t*)0x200000006cc2 = 0x310; *(uint8_t*)0x200000006cc4 = 2; *(uint8_t*)0x200000006cc5 = 0; *(uint8_t*)0x200000006cc6 = 0; *(uint8_t*)0x200000006cc7 = 8; *(uint16_t*)0x200000006cc8 = 0x525; *(uint16_t*)0x200000006cca = 0xa4a1; *(uint16_t*)0x200000006ccc = 0x40; *(uint8_t*)0x200000006cce = 1; *(uint8_t*)0x200000006ccf = 2; *(uint8_t*)0x200000006cd0 = 3; *(uint8_t*)0x200000006cd1 = 1; *(uint8_t*)0x200000006cd2 = 9; *(uint8_t*)0x200000006cd3 = 2; *(uint16_t*)0x200000006cd4 = 0x7d; *(uint8_t*)0x200000006cd6 = 1; *(uint8_t*)0x200000006cd7 = 1; *(uint8_t*)0x200000006cd8 = 6; *(uint8_t*)0x200000006cd9 = 0x10; *(uint8_t*)0x200000006cda = 0xb; *(uint8_t*)0x200000006cdb = 9; *(uint8_t*)0x200000006cdc = 4; *(uint8_t*)0x200000006cdd = 0; *(uint8_t*)0x200000006cde = 4; *(uint8_t*)0x200000006cdf = 3; *(uint8_t*)0x200000006ce0 = 2; *(uint8_t*)0x200000006ce1 = 6; *(uint8_t*)0x200000006ce2 = 0; *(uint8_t*)0x200000006ce3 = 0xe; *(uint8_t*)0x200000006ce4 = 0xb; *(uint8_t*)0x200000006ce5 = 0x24; *(uint8_t*)0x200000006ce6 = 6; *(uint8_t*)0x200000006ce7 = 0; *(uint8_t*)0x200000006ce8 = 0; memcpy((void*)0x200000006ce9, "\xd6\x01\x32\xf1\x49\xc6", 6); *(uint8_t*)0x200000006cef = 5; *(uint8_t*)0x200000006cf0 = 0x24; *(uint8_t*)0x200000006cf1 = 0; *(uint16_t*)0x200000006cf2 = 0xbb8; *(uint8_t*)0x200000006cf4 = 0xd; *(uint8_t*)0x200000006cf5 = 0x24; *(uint8_t*)0x200000006cf6 = 0xf; *(uint8_t*)0x200000006cf7 = 1; *(uint32_t*)0x200000006cf8 = 7; *(uint16_t*)0x200000006cfc = 0x32a; *(uint16_t*)0x200000006cfe = 8; *(uint8_t*)0x200000006d00 = 0x1f; *(uint8_t*)0x200000006d01 = 5; *(uint8_t*)0x200000006d02 = 0x24; *(uint8_t*)0x200000006d03 = 0x15; *(uint16_t*)0x200000006d04 = 0x101; *(uint8_t*)0x200000006d06 = 0x15; *(uint8_t*)0x200000006d07 = 0x24; *(uint8_t*)0x200000006d08 = 0x12; *(uint16_t*)0x200000006d09 = 0xfffc; *(uint64_t*)0x200000006d0b = 0x14f5e048ba817a3; *(uint64_t*)0x200000006d13 = 0x2a397ecbffc007a6; *(uint8_t*)0x200000006d1b = 7; *(uint8_t*)0x200000006d1c = 0x24; *(uint8_t*)0x200000006d1d = 0xa; *(uint8_t*)0x200000006d1e = 0xb; *(uint8_t*)0x200000006d1f = 9; *(uint8_t*)0x200000006d20 = 0xf; *(uint8_t*)0x200000006d21 = 2; *(uint8_t*)0x200000006d22 = 5; *(uint8_t*)0x200000006d23 = 0x24; *(uint8_t*)0x200000006d24 = 1; *(uint8_t*)0x200000006d25 = 1; *(uint8_t*)0x200000006d26 = -1; *(uint8_t*)0x200000006d27 = 5; *(uint8_t*)0x200000006d28 = 0x24; *(uint8_t*)0x200000006d29 = 0x15; *(uint16_t*)0x200000006d2a = 0x7ff; *(uint8_t*)0x200000006d2c = 8; *(uint8_t*)0x200000006d2d = 0x24; *(uint8_t*)0x200000006d2e = 0x1c; *(uint16_t*)0x200000006d2f = 5; *(uint8_t*)0x200000006d31 = 0x32; *(uint16_t*)0x200000006d32 = 0xa; *(uint8_t*)0x200000006d34 = 9; *(uint8_t*)0x200000006d35 = 5; *(uint8_t*)0x200000006d36 = 0x81; *(uint8_t*)0x200000006d37 = 3; *(uint16_t*)0x200000006d38 = 0x10; *(uint8_t*)0x200000006d3a = 7; *(uint8_t*)0x200000006d3b = 0x99; *(uint8_t*)0x200000006d3c = 0xb2; *(uint8_t*)0x200000006d3d = 9; *(uint8_t*)0x200000006d3e = 5; *(uint8_t*)0x200000006d3f = 0x82; *(uint8_t*)0x200000006d40 = 2; *(uint16_t*)0x200000006d41 = 8; *(uint8_t*)0x200000006d43 = 0x1a; *(uint8_t*)0x200000006d44 = 7; *(uint8_t*)0x200000006d45 = 0xc4; *(uint8_t*)0x200000006d46 = 9; *(uint8_t*)0x200000006d47 = 5; *(uint8_t*)0x200000006d48 = 3; *(uint8_t*)0x200000006d49 = 2; *(uint16_t*)0x200000006d4a = 0x3ff; *(uint8_t*)0x200000006d4c = 0xa6; *(uint8_t*)0x200000006d4d = 3; *(uint8_t*)0x200000006d4e = 0xa7; *(uint32_t*)0x200000007240 = 0xa; *(uint64_t*)0x200000007244 = 0x200000006d80; *(uint8_t*)0x200000006d80 = 0xa; *(uint8_t*)0x200000006d81 = 6; *(uint16_t*)0x200000006d82 = 0x300; *(uint8_t*)0x200000006d84 = 0xfb; *(uint8_t*)0x200000006d85 = 3; *(uint8_t*)0x200000006d86 = 0xc; *(uint8_t*)0x200000006d87 = -1; *(uint8_t*)0x200000006d88 = 1; *(uint8_t*)0x200000006d89 = 0; *(uint32_t*)0x20000000724c = 0x3c; *(uint64_t*)0x200000007250 = 0x200000006dc0; *(uint8_t*)0x200000006dc0 = 5; *(uint8_t*)0x200000006dc1 = 0xf; *(uint16_t*)0x200000006dc2 = 0x3c; *(uint8_t*)0x200000006dc4 = 6; *(uint8_t*)0x200000006dc5 = 7; *(uint8_t*)0x200000006dc6 = 0x10; *(uint8_t*)0x200000006dc7 = 2; STORE_BY_BITMASK(uint32_t, , 0x200000006dc8, 4, 0, 8); STORE_BY_BITMASK(uint32_t, , 0x200000006dc9, 7, 0, 4); STORE_BY_BITMASK(uint32_t, , 0x200000006dc9, 7, 4, 4); STORE_BY_BITMASK(uint32_t, , 0x200000006dca, 0x56a9, 0, 16); *(uint8_t*)0x200000006dcc = 0xb; *(uint8_t*)0x200000006dcd = 0x10; *(uint8_t*)0x200000006dce = 1; *(uint8_t*)0x200000006dcf = 4; *(uint16_t*)0x200000006dd0 = 0x42; *(uint8_t*)0x200000006dd2 = 2; *(uint8_t*)0x200000006dd3 = 3; *(uint16_t*)0x200000006dd4 = 0x63ac; *(uint8_t*)0x200000006dd6 = 9; *(uint8_t*)0x200000006dd7 = 3; *(uint8_t*)0x200000006dd8 = 0x10; *(uint8_t*)0x200000006dd9 = 0xb; *(uint8_t*)0x200000006dda = 7; *(uint8_t*)0x200000006ddb = 0x10; *(uint8_t*)0x200000006ddc = 2; STORE_BY_BITMASK(uint32_t, , 0x200000006ddd, 0x1a, 0, 8); STORE_BY_BITMASK(uint32_t, , 0x200000006dde, 7, 0, 4); STORE_BY_BITMASK(uint32_t, , 0x200000006dde, 0xb, 4, 4); STORE_BY_BITMASK(uint32_t, , 0x200000006ddf, 0xd5, 0, 16); *(uint8_t*)0x200000006de1 = 0x10; *(uint8_t*)0x200000006de2 = 0x10; *(uint8_t*)0x200000006de3 = 0xa; *(uint8_t*)0x200000006de4 = 0x7f; STORE_BY_BITMASK(uint32_t, , 0x200000006de5, 1, 0, 5); STORE_BY_BITMASK(uint32_t, , 0x200000006de5, 0x12f, 5, 27); *(uint16_t*)0x200000006de9 = 0xf00; *(uint16_t*)0x200000006deb = 1; *(uint32_t*)0x200000006ded = 0x3fc0; *(uint8_t*)0x200000006df1 = 0xb; *(uint8_t*)0x200000006df2 = 0x10; *(uint8_t*)0x200000006df3 = 1; *(uint8_t*)0x200000006df4 = 8; *(uint16_t*)0x200000006df5 = 0x40; *(uint8_t*)0x200000006df7 = 7; *(uint8_t*)0x200000006df8 = 5; *(uint16_t*)0x200000006df9 = 2; *(uint8_t*)0x200000006dfb = 4; *(uint32_t*)0x200000007258 = 8; *(uint32_t*)0x20000000725c = 0x78; *(uint64_t*)0x200000007260 = 0x200000006e00; *(uint8_t*)0x200000006e00 = 0x78; *(uint8_t*)0x200000006e01 = 3; memcpy((void*)0x200000006e02, "\xd7\xb4\xca\xdb\x72\xdc\xe2\x7c\xa7\xfb\x52\x09\xaa\xd1\xb3\x58\x5c\x81\x88\xf0\x61\x26\xd3\xf1\x8e\xdd\x4c\xfa\x47\xad\xdb\xd2\xa6\x71\x5d\xd4\xad\xfa\x69\x7f\x02\xbc\xb0\x89\xed\x20\x13\x26\x88\x85\xf9\xc7\x85\xbd\x7c\x5d\x4e\xe5\x0d\xe3\xce\xcd\x7a\x9d\x0b\x7b\x2e\x70\x82\x26\xe8\xac\xb1\xe9\x08\xb1\xf5\xc0\xc2\xa8\x13\x24\x65\xe4\x51\xfe\x49\xf1\x5e\x60\xc8\xd3\xb9\xc8\x43\x05\xd0\xdd\x8f\x63\x44\x80\x05\x02\x59\xca\xc3\xce\x9c\xfc\x95\x09\x2b\xd7\xe4\x91\x86\x6d", 118); *(uint32_t*)0x200000007268 = 0x13; *(uint64_t*)0x20000000726c = 0x200000006e80; *(uint8_t*)0x200000006e80 = 0x13; *(uint8_t*)0x200000006e81 = 3; memcpy((void*)0x200000006e82, "\x7d\x97\xd9\xeb\x8a\xf2\x94\x3b\x99\x85\xd3\x0c\xaa\xea\xd8\x9b\x5a", 17); *(uint32_t*)0x200000007274 = 4; *(uint64_t*)0x200000007278 = 0x200000006ec0; *(uint8_t*)0x200000006ec0 = 4; *(uint8_t*)0x200000006ec1 = 3; *(uint16_t*)0x200000006ec2 = 0x44a; *(uint32_t*)0x200000007280 = 4; *(uint64_t*)0x200000007284 = 0x200000006f00; *(uint8_t*)0x200000006f00 = 4; *(uint8_t*)0x200000006f01 = 3; *(uint16_t*)0x200000006f02 = 0x1c09; *(uint32_t*)0x20000000728c = 0x93; *(uint64_t*)0x200000007290 = 0x200000006f40; *(uint8_t*)0x200000006f40 = 0x93; *(uint8_t*)0x200000006f41 = 3; memcpy((void*)0x200000006f42, "\xa7\xe5\x52\x92\x38\xf7\x96\xc9\x00\x0c\x75\x3f\x41\xb8\x18\x31\x40\xf3\x91\x4b\x76\xbf\x1c\x42\x8e\xbe\x8d\x39\xc6\xf0\x72\xb4\x81\xec\xad\x74\x62\x74\xe7\xc5\x38\x79\x0d\x8c\x73\x0d\x20\x51\x7a\x22\x44\xa3\x78\x1b\x11\x5c\x07\xd4\x0e\x9e\xc9\xc0\x59\xf1\x2d\x0d\x15\xf4\x6c\xcf\x0c\xde\x26\xef\xa9\xd0\x2a\x11\x9e\x2c\xc5\x62\x7c\x7f\x42\x41\x24\x4d\x08\x43\xef\x00\x18\xb1\x2f\xc3\xcd\x46\x7b\x5f\xdc\xe5\x8a\x69\x75\xd0\x7a\xc3\x52\xa4\x2f\x16\x15\x17\x8d\xcb\x09\x90\xae\xca\x46\x46\x13\x06\x81\x6b\xec\xde\xb8\x96\xba\xc7\x65\xde\xd8\x1e\xbd\x75\xba\x4d\x97\x22\x9b\x15\xa9", 145); *(uint32_t*)0x200000007298 = 0xc2; *(uint64_t*)0x20000000729c = 0x200000007000; *(uint8_t*)0x200000007000 = 0xc2; *(uint8_t*)0x200000007001 = 3; memcpy((void*)0x200000007002, "\xd5\xa3\xd4\x83\x01\x2b\x31\xe4\x9d\xfa\x33\xfd\x95\x93\xb4\xb6\x68\xaa\x6f\x3f\x39\x30\x18\x37\xd9\x51\xda\xf2\x56\x31\x68\x19\xf5\xe7\x1f\xa6\x51\xbb\x06\xb2\xaf\x65\xaf\x27\xc7\xbf\x0f\xda\x1e\xaa\x1e\x32\x23\x1b\x75\xf4\xd0\x6d\x49\x23\xc7\x60\x13\xe9\xd7\x6a\x12\x20\x28\x16\xff\x87\x40\xa9\xfb\x4f\x2e\xce\xb2\x7b\xd2\xe1\xab\x1e\x7b\xd4\xba\x73\x14\xb3\x3d\x15\xe0\xfe\x65\xaa\x2b\x2e\x7f\xfb\x32\x36\xcb\x61\x54\x93\x39\x1f\xea\xb3\xbf\xb8\x28\x18\x2f\xb6\x0c\x4f\xd6\xfe\xf4\x22\xe1\x06\xf3\x84\xbe\x63\x39\x05\xca\x1a\xaf\x83\xd9\xdd\xb2\xa2\x90\x2e\x2a\x11\x7d\xe4\xe5\x96\x14\x58\x09\xb3\xb3\x4b\x1e\xa4\x32\xb4\x12\x39\x1f\xfb\x25\xac\x25\x5e\x7d\xa1\x1d\x99\x4e\x7e\x9e\x98\xe0\x72\x3a\x27\x57\xe5\x80\x95\x9d\xae\x6f\xa7\xac\x2a\xfb\x8d\xc5\x38\x4b\x4a", 192); *(uint32_t*)0x2000000072a4 = 0x5b; *(uint64_t*)0x2000000072a8 = 0x200000007100; *(uint8_t*)0x200000007100 = 0x5b; *(uint8_t*)0x200000007101 = 3; memcpy((void*)0x200000007102, "\xa7\x94\x09\x09\x68\xe4\x6e\x97\xb7\x26\x9f\xca\xe0\xf8\x18\xbf\x9a\x99\xa5\x0d\xe6\x0e\x5c\xda\x68\x47\x21\xbe\x6d\xc3\x48\x20\xf9\x12\xc3\x38\xd7\xdc\x8a\xc5\x0d\x93\xfc\x92\xa2\xeb\xde\x1a\x02\x65\x20\x89\x72\x66\x08\xa9\xe5\x87\x7f\x4c\xac\xf9\x1b\x9e\xec\x5b\x5e\xb2\xfc\x7f\xa7\xbb\x3d\x26\x60\x75\x37\xf0\xe5\x5d\x00\x79\x3e\x7c\xf1\x3b\xbb\x36\x7e", 89); *(uint32_t*)0x2000000072b0 = 0x90; *(uint64_t*)0x2000000072b4 = 0x200000007180; *(uint8_t*)0x200000007180 = 0x90; *(uint8_t*)0x200000007181 = 3; memcpy((void*)0x200000007182, "\xf9\x92\x6b\x0d\xae\x8c\x46\x23\x52\x10\x5e\xd1\xc4\xd3\xff\x50\xcc\x9c\xe9\x82\xc3\x97\xe9\x2e\x57\x61\x01\x31\x71\x90\xc2\x32\x7a\x2b\xa7\x23\x84\x41\x49\xe5\x5f\x4b\x96\x1d\x0f\x0d\xef\xbc\x7e\xdb\x70\xf5\xd6\x11\x69\x07\x42\x65\xac\xd8\x1c\xee\xc5\xa1\x5b\x66\xa5\xe5\x00\x92\x36\xd0\x62\x99\x4a\xf9\xaf\xcb\xe0\x47\x36\xaa\xad\x6b\xb5\x5c\xb3\x0e\x05\x7c\x42\xd0\xdf\x74\x81\x60\x3c\x3c\x95\x9b\x5e\x4e\x20\xf0\x53\x82\xa9\xd9\xad\x4c\x01\x68\x0a\xe3\x59\x7e\xf4\x03\xde\xdf\x0b\x6c\x53\xfd\xc7\x0d\x13\xed\x11\x6e\xf9\xea\x90\x20\x93\xf1\xc9\xf4\xaf\x4c\xec\x25", 142); res = -1; res = syz_usb_connect(/*speed=USB_SPEED_SUPER_PLUS*/6, /*dev_len=*/0x8f, /*dev=*/0x200000006cc0, /*conn_descs=*/0x200000007240); if (res != -1) r[39] = res; break; case 58: *(uint32_t*)0x200000007480 = 0x2c; *(uint64_t*)0x200000007484 = 0x2000000072c0; *(uint8_t*)0x2000000072c0 = 0x40; *(uint8_t*)0x2000000072c1 = 7; *(uint32_t*)0x2000000072c2 = 0x1b; *(uint8_t*)0x2000000072c6 = 0x1b; *(uint8_t*)0x2000000072c7 = 0xa; memcpy((void*)0x2000000072c8, "\x90\x73\x0f\x1d\x9e\x91\xd2\xe1\xdf\x57\x71\x43\xe1\x8c\x68\x0e\xac\xe6\xd6\xc1\x22\x99\x24\x61\x28", 25); *(uint64_t*)0x20000000748c = 0x200000007300; *(uint8_t*)0x200000007300 = 0; *(uint8_t*)0x200000007301 = 3; *(uint32_t*)0x200000007302 = 0x44; *(uint8_t*)0x200000007306 = 0x44; *(uint8_t*)0x200000007307 = 3; memcpy((void*)0x200000007308, "\x87\xd7\x4d\xd4\x60\x96\x80\x9a\x8f\x49\x88\xdd\xaa\x95\xa5\x32\xfb\xc2\x2d\x85\x85\xd1\x59\x28\x57\xad\x0a\xb0\x0c\x17\xa4\xfe\xf3\xb2\x29\xa0\x2f\xe0\xe3\x64\x93\x16\xbe\xd9\xf4\x4f\x58\x8b\x1f\x0b\x47\xbc\x86\x70\x51\x29\x44\x09\x38\xbd\x68\xa2\x9a\x84\xf8\x29", 66); *(uint64_t*)0x200000007494 = 0x200000007380; *(uint8_t*)0x200000007380 = 0; *(uint8_t*)0x200000007381 = 0xf; *(uint32_t*)0x200000007382 = 0x41; *(uint8_t*)0x200000007386 = 5; *(uint8_t*)0x200000007387 = 0xf; *(uint16_t*)0x200000007388 = 0x41; *(uint8_t*)0x20000000738a = 4; *(uint8_t*)0x20000000738b = 0x20; *(uint8_t*)0x20000000738c = 0x10; *(uint8_t*)0x20000000738d = 0xa; *(uint8_t*)0x20000000738e = 0; STORE_BY_BITMASK(uint32_t, , 0x20000000738f, 5, 0, 5); STORE_BY_BITMASK(uint32_t, , 0x20000000738f, 0xe85, 5, 27); *(uint16_t*)0x200000007393 = 0xf00; *(uint16_t*)0x200000007395 = 3; *(uint32_t*)0x200000007397 = 0xff00a0; *(uint32_t*)0x20000000739b = 0xff00f0; *(uint32_t*)0x20000000739f = 0x30; *(uint32_t*)0x2000000073a3 = 0xf; *(uint32_t*)0x2000000073a7 = 0xdfbf; *(uint8_t*)0x2000000073ab = 7; *(uint8_t*)0x2000000073ac = 0x10; *(uint8_t*)0x2000000073ad = 2; STORE_BY_BITMASK(uint32_t, , 0x2000000073ae, 4, 0, 8); STORE_BY_BITMASK(uint32_t, , 0x2000000073af, 4, 0, 4); STORE_BY_BITMASK(uint32_t, , 0x2000000073af, 1, 4, 4); STORE_BY_BITMASK(uint32_t, , 0x2000000073b0, 0xff, 0, 16); *(uint8_t*)0x2000000073b2 = 0xb; *(uint8_t*)0x2000000073b3 = 0x10; *(uint8_t*)0x2000000073b4 = 1; *(uint8_t*)0x2000000073b5 = 2; *(uint16_t*)0x2000000073b6 = 1; *(uint8_t*)0x2000000073b8 = 1; *(uint8_t*)0x2000000073b9 = 3; *(uint16_t*)0x2000000073ba = 9; *(uint8_t*)0x2000000073bc = 8; *(uint8_t*)0x2000000073bd = 0xa; *(uint8_t*)0x2000000073be = 0x10; *(uint8_t*)0x2000000073bf = 3; *(uint8_t*)0x2000000073c0 = 2; *(uint16_t*)0x2000000073c1 = 4; *(uint8_t*)0x2000000073c3 = 3; *(uint8_t*)0x2000000073c4 = 0xb6; *(uint16_t*)0x2000000073c5 = 5; *(uint64_t*)0x20000000749c = 0x200000007400; *(uint8_t*)0x200000007400 = 0x20; *(uint8_t*)0x200000007401 = 0x29; *(uint32_t*)0x200000007402 = 0xf; *(uint8_t*)0x200000007406 = 0xf; *(uint8_t*)0x200000007407 = 0x29; *(uint8_t*)0x200000007408 = 0xf; *(uint16_t*)0x200000007409 = 4; *(uint8_t*)0x20000000740b = 6; *(uint8_t*)0x20000000740c = 0x32; memcpy((void*)0x20000000740d, "\xb2\xc8\x4f\x72", 4); memcpy((void*)0x200000007411, "\xf5\xfb\x7b\x90", 4); *(uint64_t*)0x2000000074a4 = 0x200000007440; *(uint8_t*)0x200000007440 = 0x20; *(uint8_t*)0x200000007441 = 0x2a; *(uint32_t*)0x200000007442 = 0xc; *(uint8_t*)0x200000007446 = 0xc; *(uint8_t*)0x200000007447 = 0x2a; *(uint8_t*)0x200000007448 = 0x3a; *(uint16_t*)0x200000007449 = 0x60; *(uint8_t*)0x20000000744b = 4; *(uint8_t*)0x20000000744c = 4; *(uint8_t*)0x20000000744d = 7; *(uint16_t*)0x20000000744e = 0x8001; *(uint16_t*)0x200000007450 = 8; *(uint32_t*)0x200000007980 = 0x84; *(uint64_t*)0x200000007984 = 0x2000000074c0; *(uint8_t*)0x2000000074c0 = 0; *(uint8_t*)0x2000000074c1 = 0; *(uint32_t*)0x2000000074c2 = 0xcf; memcpy((void*)0x2000000074c6, "\x9f\x51\xc6\xee\x54\xbf\xc1\xfc\x30\xd7\x87\x49\x9a\xb2\x44\x93\xc2\xf3\x0f\x78\xfe\x08\x8e\x72\x4a\xd2\x9b\xad\xb6\xc2\x40\x68\x74\xa9\x09\xd8\x0e\x00\x00\x75\xbb\xe9\x2f\x6f\x4e\x8b\x35\x14\x48\x1d\x12\xb8\x69\xde\xb6\xf4\x7f\x3b\x45\x83\x69\xb7\xf0\x24\xfc\xc0\x23\x19\xe3\x8c\xb7\x46\x7c\x76\xb3\x70\xd3\x78\xee\x02\x56\xda\xa3\xac\xea\x1f\x71\xbe\x5e\x4c\x7d\x8a\x50\x03\x7b\xa8\x4e\x62\x44\x5b\xbd\x99\x0a\x26\xb4\x4f\x60\x19\x8d\x63\x50\x5f\xbf\x00\x5b\x96\x63\x7a\xbf\x5e\xb6\x92\xa2\xed\x0d\x58\x26\x92\xe3\xf2\x59\x38\x7e\xd9\xd1\x95\x59\x17\xdc\x53\xa2\x46\xeb\x20\xe2\x81\xe7\x83\x86\xed\x87\x34\xb8\x10\x75\xe4\x3b\x5b\x3e\x15\xea\x60\xdb\xd4\x97\xe0\x7a\xd8\x84\x79\x92\xdd\x87\x83\x1b\x20\xd0\x52\x63\xc1\x08\xd7\x01\x17\xe5\x21\x70\xef\xac\x17\x77\xd3\xd3\x76\x87\x63\x58\xc2\x29\x71\x72\xb2\xa0\x23\xb5\x2c\x05", 207); *(uint64_t*)0x20000000798c = 0x2000000075c0; *(uint8_t*)0x2000000075c0 = 0; *(uint8_t*)0x2000000075c1 = 0xa; *(uint32_t*)0x2000000075c2 = 1; *(uint8_t*)0x2000000075c6 = 2; *(uint64_t*)0x200000007994 = 0x200000007600; *(uint8_t*)0x200000007600 = 0; *(uint8_t*)0x200000007601 = 8; *(uint32_t*)0x200000007602 = 1; *(uint8_t*)0x200000007606 = 0xfc; *(uint64_t*)0x20000000799c = 0x200000007640; *(uint8_t*)0x200000007640 = 0x20; *(uint8_t*)0x200000007641 = 0; *(uint32_t*)0x200000007642 = 4; *(uint16_t*)0x200000007646 = 3; *(uint16_t*)0x200000007648 = 1; *(uint64_t*)0x2000000079a4 = 0x200000007680; *(uint8_t*)0x200000007680 = 0x20; *(uint8_t*)0x200000007681 = 0; *(uint32_t*)0x200000007682 = 4; *(uint16_t*)0x200000007686 = 0x1d20; *(uint16_t*)0x200000007688 = 0x20; *(uint64_t*)0x2000000079ac = 0x2000000076c0; *(uint8_t*)0x2000000076c0 = 0x40; *(uint8_t*)0x2000000076c1 = 7; *(uint32_t*)0x2000000076c2 = 2; *(uint16_t*)0x2000000076c6 = 0xfff8; *(uint64_t*)0x2000000079b4 = 0x200000007700; *(uint8_t*)0x200000007700 = 0x40; *(uint8_t*)0x200000007701 = 9; *(uint32_t*)0x200000007702 = 1; *(uint8_t*)0x200000007706 = 0xd; *(uint64_t*)0x2000000079bc = 0x200000007740; *(uint8_t*)0x200000007740 = 0x40; *(uint8_t*)0x200000007741 = 0xb; *(uint32_t*)0x200000007742 = 2; memcpy((void*)0x200000007746, "\x22\x89", 2); *(uint64_t*)0x2000000079c4 = 0x200000007780; *(uint8_t*)0x200000007780 = 0x40; *(uint8_t*)0x200000007781 = 0xf; *(uint32_t*)0x200000007782 = 2; *(uint16_t*)0x200000007786 = 2; *(uint64_t*)0x2000000079cc = 0x2000000077c0; *(uint8_t*)0x2000000077c0 = 0x40; *(uint8_t*)0x2000000077c1 = 0x13; *(uint32_t*)0x2000000077c2 = 6; memset((void*)0x2000000077c6, 255, 6); *(uint64_t*)0x2000000079d4 = 0x200000007800; *(uint8_t*)0x200000007800 = 0x40; *(uint8_t*)0x200000007801 = 0x17; *(uint32_t*)0x200000007802 = 6; memcpy((void*)0x200000007806, "\xee\xfa\x7a\x62\x01\x65", 6); *(uint64_t*)0x2000000079dc = 0x200000007840; *(uint8_t*)0x200000007840 = 0x40; *(uint8_t*)0x200000007841 = 0x19; *(uint32_t*)0x200000007842 = 2; memcpy((void*)0x200000007846, "\x01\xd3", 2); *(uint64_t*)0x2000000079e4 = 0x200000007880; *(uint8_t*)0x200000007880 = 0x40; *(uint8_t*)0x200000007881 = 0x1a; *(uint32_t*)0x200000007882 = 2; *(uint16_t*)0x200000007886 = 5; *(uint64_t*)0x2000000079ec = 0x2000000078c0; *(uint8_t*)0x2000000078c0 = 0x40; *(uint8_t*)0x2000000078c1 = 0x1c; *(uint32_t*)0x2000000078c2 = 1; *(uint8_t*)0x2000000078c6 = -1; *(uint64_t*)0x2000000079f4 = 0x200000007900; *(uint8_t*)0x200000007900 = 0x40; *(uint8_t*)0x200000007901 = 0x1e; *(uint32_t*)0x200000007902 = 1; *(uint8_t*)0x200000007906 = 0xf7; *(uint64_t*)0x2000000079fc = 0x200000007940; *(uint8_t*)0x200000007940 = 0x40; *(uint8_t*)0x200000007941 = 0x21; *(uint32_t*)0x200000007942 = 1; *(uint8_t*)0x200000007946 = 0xb; syz_usb_control_io(/*fd=*/r[39], /*descs=*/0x200000007480, /*resps=*/0x200000007980); break; case 59: syz_usb_disconnect(/*fd=*/r[38]); break; case 60: *(uint8_t*)0x200000007a40 = 0x12; *(uint8_t*)0x200000007a41 = 1; *(uint16_t*)0x200000007a42 = 0x110; *(uint8_t*)0x200000007a44 = 0; *(uint8_t*)0x200000007a45 = 0; *(uint8_t*)0x200000007a46 = 0; *(uint8_t*)0x200000007a47 = -1; *(uint16_t*)0x200000007a48 = 0x46d; *(uint16_t*)0x200000007a4a = 0xc08d; *(uint16_t*)0x200000007a4c = 0x40; *(uint8_t*)0x200000007a4e = 1; *(uint8_t*)0x200000007a4f = 2; *(uint8_t*)0x200000007a50 = 3; *(uint8_t*)0x200000007a51 = 1; *(uint8_t*)0x200000007a52 = 9; *(uint8_t*)0x200000007a53 = 2; *(uint16_t*)0x200000007a54 = 0x2d; *(uint8_t*)0x200000007a56 = 1; *(uint8_t*)0x200000007a57 = 1; *(uint8_t*)0x200000007a58 = 4; *(uint8_t*)0x200000007a59 = 0x50; *(uint8_t*)0x200000007a5a = 0x10; *(uint8_t*)0x200000007a5b = 9; *(uint8_t*)0x200000007a5c = 4; *(uint8_t*)0x200000007a5d = 0; *(uint8_t*)0x200000007a5e = 0xf9; *(uint8_t*)0x200000007a5f = 2; *(uint8_t*)0x200000007a60 = 3; *(uint8_t*)0x200000007a61 = 1; *(uint8_t*)0x200000007a62 = 2; *(uint8_t*)0x200000007a63 = 5; *(uint8_t*)0x200000007a64 = 9; *(uint8_t*)0x200000007a65 = 0x21; *(uint16_t*)0x200000007a66 = 0x81; *(uint8_t*)0x200000007a68 = 8; *(uint8_t*)0x200000007a69 = 1; *(uint8_t*)0x200000007a6a = 0x22; *(uint16_t*)0x200000007a6b = 0x6e7; *(uint8_t*)0x200000007a6d = 9; *(uint8_t*)0x200000007a6e = 5; *(uint8_t*)0x200000007a6f = 0x81; *(uint8_t*)0x200000007a70 = 3; *(uint16_t*)0x200000007a71 = 0x10; *(uint8_t*)0x200000007a73 = 8; *(uint8_t*)0x200000007a74 = 0xc; *(uint8_t*)0x200000007a75 = 0x6e; *(uint8_t*)0x200000007a76 = 9; *(uint8_t*)0x200000007a77 = 5; *(uint8_t*)0x200000007a78 = 2; *(uint8_t*)0x200000007a79 = 3; *(uint16_t*)0x200000007a7a = 0x200; *(uint8_t*)0x200000007a7c = 8; *(uint8_t*)0x200000007a7d = 1; *(uint8_t*)0x200000007a7e = 0x50; *(uint32_t*)0x200000007f40 = 0xa; *(uint64_t*)0x200000007f44 = 0x200000007a80; *(uint8_t*)0x200000007a80 = 0xa; *(uint8_t*)0x200000007a81 = 6; *(uint16_t*)0x200000007a82 = 0x310; *(uint8_t*)0x200000007a84 = 0x48; *(uint8_t*)0x200000007a85 = 0xa5; *(uint8_t*)0x200000007a86 = 0xca; *(uint8_t*)0x200000007a87 = 8; *(uint8_t*)0x200000007a88 = 0x10; *(uint8_t*)0x200000007a89 = 0; *(uint32_t*)0x200000007f4c = 0x30; *(uint64_t*)0x200000007f50 = 0x200000007ac0; *(uint8_t*)0x200000007ac0 = 5; *(uint8_t*)0x200000007ac1 = 0xf; *(uint16_t*)0x200000007ac2 = 0x30; *(uint8_t*)0x200000007ac4 = 4; *(uint8_t*)0x200000007ac5 = 0xa; *(uint8_t*)0x200000007ac6 = 0x10; *(uint8_t*)0x200000007ac7 = 3; *(uint8_t*)0x200000007ac8 = 0; *(uint16_t*)0x200000007ac9 = 5; *(uint8_t*)0x200000007acb = 0; *(uint8_t*)0x200000007acc = 1; *(uint16_t*)0x200000007acd = 0x8a; *(uint8_t*)0x200000007acf = 0x10; *(uint8_t*)0x200000007ad0 = 0x10; *(uint8_t*)0x200000007ad1 = 0xa; *(uint8_t*)0x200000007ad2 = 0xa; STORE_BY_BITMASK(uint32_t, , 0x200000007ad3, 1, 0, 5); STORE_BY_BITMASK(uint32_t, , 0x200000007ad3, 0, 5, 27); *(uint16_t*)0x200000007ad7 = 0xf00f; *(uint16_t*)0x200000007ad9 = 7; *(uint32_t*)0x200000007adb = 0x3f00; *(uint8_t*)0x200000007adf = 0xa; *(uint8_t*)0x200000007ae0 = 0x10; *(uint8_t*)0x200000007ae1 = 3; *(uint8_t*)0x200000007ae2 = 0; *(uint16_t*)0x200000007ae3 = 4; *(uint8_t*)0x200000007ae5 = 4; *(uint8_t*)0x200000007ae6 = 8; *(uint16_t*)0x200000007ae7 = 0xfff8; *(uint8_t*)0x200000007ae9 = 7; *(uint8_t*)0x200000007aea = 0x10; *(uint8_t*)0x200000007aeb = 2; STORE_BY_BITMASK(uint32_t, , 0x200000007aec, 4, 0, 8); STORE_BY_BITMASK(uint32_t, , 0x200000007aed, 0, 0, 4); STORE_BY_BITMASK(uint32_t, , 0x200000007aed, 5, 4, 4); STORE_BY_BITMASK(uint32_t, , 0x200000007aee, 0x8001, 0, 16); *(uint32_t*)0x200000007f58 = 0xa; *(uint32_t*)0x200000007f5c = 4; *(uint64_t*)0x200000007f60 = 0x200000007b00; *(uint8_t*)0x200000007b00 = 4; *(uint8_t*)0x200000007b01 = 3; *(uint16_t*)0x200000007b02 = 0x437; *(uint32_t*)0x200000007f68 = 0xf2; *(uint64_t*)0x200000007f6c = 0x200000007b40; *(uint8_t*)0x200000007b40 = 0xf2; *(uint8_t*)0x200000007b41 = 3; memcpy((void*)0x200000007b42, "\xf0\x01\x99\x69\xb3\x8f\x6a\xfa\xbd\x6c\x10\x59\x67\xf2\xb7\x9c\x11\x6b\xf5\x2e\x6a\xf5\x49\x27\x19\x39\xcb\xea\xcd\xab\x5c\x85\x03\xce\xe7\xd1\xa6\x7a\x62\xea\x49\x1b\x6b\x2f\x86\x47\x13\x3f\x15\xb8\xe9\x70\x7e\x4a\x77\x57\x7e\x8a\xfd\x8a\x12\x84\x45\x9b\x66\xc7\xbe\x93\xc4\x3e\x84\xef\xcf\xc2\xf7\x3e\x93\xd2\x95\x99\x8c\xc2\xf4\x95\xae\x5b\x1a\x3d\x5e\x12\xef\x6e\x64\x66\x4a\x3b\x5c\x79\x52\x8b\x01\x19\xf7\x8b\x0a\x61\xd8\x07\x23\x25\x37\xeb\x3d\x9c\x09\xad\xd9\x38\x23\xe6\xf8\x78\xbb\xba\x00\x89\x8b\xe1\x01\x7f\xaf\x4e\x5f\x14\xd3\x87\x40\x1c\x45\x64\x59\x54\xc0\x4f\x8c\x83\xf9\xe5\xf0\xae\x99\x13\xd9\xcc\xb8\x8e\x75\x16\xd8\x0f\x8e\x21\xc3\xb6\x10\x42\x92\x58\x16\x92\x48\xa0\x16\xde\x14\x4a\xbc\xe7\x90\x5f\x4d\xd3\xbf\x26\x98\xe9\xf3\xa5\xfe\xbc\x7c\x10\xef\x4e\xd2\x98\xe5\xf8\xfa\xcb\xb3\xc9\x34\x4b\xb3\xab\x33\x56\x8a\x0f\x64\xf4\x28\xd6\x0d\xab\xe2\xbf\xe7\x95\xdf\x06\x03\xcd\xf7\x6f\x60\x62\x41\xfd\xd8\x9c\x8f\xf9\xfe\x55\xee\x23\x95\xfd", 240); *(uint32_t*)0x200000007f74 = 4; *(uint64_t*)0x200000007f78 = 0x200000007c40; *(uint8_t*)0x200000007c40 = 4; *(uint8_t*)0x200000007c41 = 3; *(uint16_t*)0x200000007c42 = 0x2c0a; *(uint32_t*)0x200000007f80 = 0x89; *(uint64_t*)0x200000007f84 = 0x200000007c80; *(uint8_t*)0x200000007c80 = 0x89; *(uint8_t*)0x200000007c81 = 3; memcpy((void*)0x200000007c82, "\x05\xb7\x61\x5d\x7a\x2b\xa8\x3f\x59\x16\xd5\x85\xe5\x29\x06\x69\xa0\xc2\x43\xe1\xc6\x5f\x43\xd6\xc7\x68\x07\x67\xf0\xda\x68\x05\xce\x35\x66\x41\x3a\x20\xf4\xb8\x66\x4b\x77\x79\x9c\x5c\x60\x61\xd9\xd1\x90\x75\xd2\xf8\x9b\x88\x0c\xaa\x62\x2d\x3a\xa9\x10\x8e\x52\x22\xe5\x53\x36\xbf\x78\x50\xd2\xf7\x99\x0a\x13\x14\xb0\xbe\x81\xd6\x06\xf8\xa9\x9a\x67\x05\xe0\xac\x44\x87\x20\x72\x36\x6a\xba\xea\x5f\x97\xd7\xca\x08\xed\x1e\xb2\x5b\x70\x7c\x92\x99\x1e\x55\x37\xf9\x45\xaa\x40\x1d\x76\x13\x49\xb6\x28\xd6\xc9\x28\xc1\xcf\xe5\xb0\x9f\xd1\x32\x72", 135); *(uint32_t*)0x200000007f8c = 0xb8; *(uint64_t*)0x200000007f90 = 0x200000007d40; *(uint8_t*)0x200000007d40 = 0xb8; *(uint8_t*)0x200000007d41 = 3; memcpy((void*)0x200000007d42, "\xf0\x4a\x78\x64\x8b\xb1\x3a\xd6\xc5\x3b\x44\xe4\x2e\xd2\xf2\x4d\x32\x05\xbf\x51\x61\x67\x4f\xf3\x75\xec\xfa\x9f\x71\x0d\xd4\xd5\x2e\x29\x77\x9b\xc4\xc1\xd4\x1f\xaf\x1b\x2e\x02\xfa\x2c\xb4\xca\x6c\x44\x96\x81\xb5\xc8\x8b\x37\x75\xf8\x2b\xab\xde\x22\x58\xf8\xa0\x01\xd8\x11\xf8\xb6\x4c\xe0\x75\x3b\x22\x8c\x16\x18\x09\x77\x0f\x39\x16\x0b\xa4\xea\x92\x49\x0a\x38\xf8\x2c\x3f\x18\xb4\x4c\x81\xa1\x48\xc4\x8b\xbc\x4f\x71\x6e\x64\xa8\x5a\x98\x5f\x35\x70\xd6\x13\x2a\x4a\xc6\xe9\x7f\x0a\xe7\x29\x65\x82\x87\x9c\x5d\x4e\x27\x7b\xe3\xd5\x86\x7d\xc3\xdf\x26\x06\x87\x9b\xd5\x28\x12\x25\xa3\x4f\x3f\xeb\xa4\x36\xee\xc1\x6d\xdf\xbe\x61\x15\x74\xbe\x64\x5a\x71\xc5\xe8\xbe\x49\x4e\x27\x91\x83\x33\xf2\x43\x1a\xef\xf2\xe9\xfe\xd0\x60\x84\x28", 182); *(uint32_t*)0x200000007f98 = 4; *(uint64_t*)0x200000007f9c = 0x200000007e00; *(uint8_t*)0x200000007e00 = 4; *(uint8_t*)0x200000007e01 = 3; *(uint16_t*)0x200000007e02 = 0x40f; *(uint32_t*)0x200000007fa4 = 4; *(uint64_t*)0x200000007fa8 = 0x200000007e40; *(uint8_t*)0x200000007e40 = 4; *(uint8_t*)0x200000007e41 = 3; *(uint16_t*)0x200000007e42 = 0x860; *(uint32_t*)0x200000007fb0 = 4; *(uint64_t*)0x200000007fb4 = 0x200000007e80; *(uint8_t*)0x200000007e80 = 4; *(uint8_t*)0x200000007e81 = 3; *(uint16_t*)0x200000007e82 = 0xf4ef; *(uint32_t*)0x200000007fbc = 4; *(uint64_t*)0x200000007fc0 = 0x200000007ec0; *(uint8_t*)0x200000007ec0 = 4; *(uint8_t*)0x200000007ec1 = 3; *(uint16_t*)0x200000007ec2 = 0x3001; *(uint32_t*)0x200000007fc8 = 4; *(uint64_t*)0x200000007fcc = 0x200000007f00; *(uint8_t*)0x200000007f00 = 4; *(uint8_t*)0x200000007f01 = 3; *(uint16_t*)0x200000007f02 = 0x2009; res = -1; res = syz_usb_connect(/*speed=*/0, /*dev_len=*/0x3f, /*dev=*/0x200000007a40, /*conn_descs=*/0x200000007f40); if (res != -1) r[40] = res; break; case 61: syz_usb_ep_read(/*fd=*/r[40], /*ep=*/0, /*len=*/0x1000, /*data=*/0x200000008000); break; case 62: memcpy((void*)0x200000009000, "\x57\xbb\xa2\xf0\x4f\x39\x45\xda\x7a\x47\x03\x77\x10\xf6\xd5\x3d\x8d\xfa\xd8\xa9\x6c\x57\xe1\x1c\xf5\xfc\xfe\xe4\x34\xfc\xe8\x80\x38\xe1\x90\x4e\xcc\x27\x12\x33\x41\x18\xe5\x00\x2b\x0c\x10\x7c\x28\x6e\xb9\x03\x14\x23\x3f\xd5\xce\x1d\x9e\xa5\xda\x00\x76\x74\x11\x02\xd8\x85\x17\x46\x3f\xf1\x18\xbd\x93\x12\x82\x41\x2d\xe1\xf5\xea\x71\xeb\x2b\xec\x91\xb8\x2b\x7f\x7b\x64\xf8\xaa\xe1\xd5\x8e\x32\xde\x1d\xee\xb1\xc8\x26\x4d\x59\xd6\x39\xa1\x94\x5f\x00\x90\x27\x5e\x6b\xdb\xf1\x8e\x86\x68\x5c\xcb\x60\xa5\xfe\xc9\xc7\xce\xba\xc5\xd0\x5b\x5c\x84\xe6\x11\x6f\x89\xd4\x43\xfa\xd3\xce\x74\xd8\x20\x80", 148); syz_usb_ep_write(/*fd=*/r[37], /*ep=*/6, /*len=*/0x94, /*data=*/0x200000009000); break; case 63: syz_usbip_server_init(/*speed=USB_SPEED_SUPER*/5); break; } } int main(void) { syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000ul, /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/7ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x200001000000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); const char* reason; (void)reason; if ((reason = setup_fault())) printf("the reproducer may not work as expected: fault injection setup failed: %s\n", reason); use_temporary_dir(); do_sandbox_none(); return 0; } : In function 'execute_call': :6775:17: error: '__NR_socketcall' undeclared (first use in this function) :6775:17: note: each undeclared identifier is reported only once for each function it appears in At top level: cc1: note: unrecognized command-line option '-Wno-unused-command-line-argument' may have been intended to silence earlier diagnostics compiler invocation: x86_64-linux-gnu-gcc [-o /tmp/syz-executor430526098 -DGOOS_linux=1 -DGOARCH_amd64=1 -DHOSTGOOS_linux=1 -x c - -m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -static-pie] --- FAIL: TestGenerate/linux/amd64/21 (1.30s) csource_test.go:157: opts: {Threaded:true Repeat:true RepeatTimes:0 Procs:0 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:true NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}} program: r0 = openat$ubi_ctrl(0xffffffffffffff9c, &(0x7f0000000000), 0x44502, 0x0) (fail_nth: 1) ioctl$USBDEVFS_BULK(r0, 0xc0185502, &(0x7f0000000140)={{{0xa, 0x1}}, 0xc5, 0x1, &(0x7f0000000040)="e1ee87a8f76c257b75c1073c7058be82fe3362bbcca54df520d1ca8fa91b50810f876d1fab0a1cc214c35f4e266e71643d8c95988087e46a87c1a715effe06169ab65fa18e5414404f30c0005561397ed1d9557c66a994b954efa714985a2ae409df8111fa8a361408734d15b30cd9ab3fa50e088b3d2bafdc689ea3cb7e52a9fc7f5d48d245d4097bb933725bd9e29371cd7780b4ec8d6e2dbf861aad04d6594f5ebd2ffab1e8a68c5157cae2f46f6fa3aeac0e3f8b7b97630f346bc3276e53ca72b417f8"}) (async) ioctl$F2FS_IOC_SET_COMPRESS_OPTION(r0, 0x4002f516, &(0x7f0000000180)={0x4, 0x9}) (rerun: 4) setsockopt$inet6_tcp_TCP_REPAIR(r0, 0x6, 0x13, &(0x7f00000001c0)=0xffffffffffffffff, 0x4) setsockopt$inet6_group_source_req(r0, 0x29, 0x2b, &(0x7f0000000200)={0x4, {{0xa, 0x4e20, 0x4, @private0={0xfc, 0x0, '\x00', 0x1}}}, {{0xa, 0x4e21, 0x1, @local, 0x9}}}, 0x108) ioctl$USBDEVFS_GETDRIVER(r0, 0x41045508, &(0x7f0000000340)={0x4b, "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"}) setsockopt$XDP_UMEM_REG(r0, 0x11b, 0x4, &(0x7f0000000580)={&(0x7f0000000480)=""/222, 0x8000, 0x1800, 0x1, 0x3}, 0x20) ioctl$BLKSECDISCARD(r0, 0x127d, &(0x7f00000005c0)=0x4) ioctl$DRM_IOCTL_SYNCOBJ_FD_TO_HANDLE_FD(r0, 0xc01864c2, &(0x7f0000000600)={0x0, 0x0, r0}) ioctl$DRM_IOCTL_MODE_REVOKE_LEASE(0xffffffffffffffff, 0xc00464c9, &(0x7f00000006c0)) syz_80211_inject_frame(&(0x7f0000000000)=@broadcast, &(0x7f0000000040)=@data_frame={@a_msdu=@type01={{0x0, 0x2, 0xb, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1}, {0x2}, @device_b, @from_mac, @initial, {0x9, 0x5bb}, "", @value={0x1, 0x1, 0x1, 0x1, 0x9}, @value=@ver_80211n={0x0, 0x2, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x1}}, @random="055ba71928a79f8625942b8e22a62e7d0ef5d26afb5923f0a1"}, 0x37) syz_80211_join_ibss(&(0x7f0000000080)='wlan0\x00', &(0x7f00000000c0)=@random="f20f01439229172ec7637d66e2f075", 0xf, 0x2) syz_btf_id_by_name$bpf_lsm(&(0x7f0000000100)='bpf_lsm_inode_getsecurity\x00') r1 = syz_clone(0x1000, &(0x7f0000000140)="ff427f0e4659ab5893d3badb31b3b1b89da52b0f3d3489a18a5837ba6e04f21cf0581de7946c2e29adef18036a10ce361250a5667064b4d456c64c307d63cfe3422c3fafd450315e8366", 0x4a, &(0x7f00000001c0), &(0x7f0000000200), &(0x7f0000000240)="b201d139a4344e463d89913bee9c68af3f34090b9f6244af88c8fe07ce4ffe9b81210da0fc44559d985ad5bb1dc9672ce4d1df554aafb78053f4") r2 = syz_clone3(&(0x7f0000000440)={0x100400, &(0x7f0000000280)=0xffffffffffffffff, &(0x7f00000002c0)=0x0, &(0x7f0000000300)=0x0, {0x2a}, &(0x7f0000000340)=""/21, 0x15, &(0x7f0000000380)=""/120, &(0x7f0000000400)=[r1], 0x1}, 0x58) syz_create_resource$binfmt(&(0x7f00000004c0)='./file0\x00') syz_emit_ethernet(0xd1, &(0x7f0000000500)={@random="44f71c1405a2", @multicast, @val={@void, {0x8100, 0x1, 0x0, 0x2}}, {@mpls_mc={0x8848, {[{0xf, 0x0, 0x1}, {0xc, 0x0, 0x1}, {0x2, 0x0, 0x1}, {0x1c}], @llc={@snap={0x0, 0x0, "67a3", "c85dcd", 0x88ca, "e303e8e52af9a170943b5f0b2861a3effb852560b1007d1865564aed84dfbf75279a5a950a513b7559f042b12f0d592b5a8bb399b9a071f4d2b9fb4903fb61b866bd20c43a437cc6915d6e19f058e23b4cfbf7d66b0d974aa6f1687cc06941e28e8515a079742b9f8383f09b8e29493cdfef26beab29802d1e85d1a50ef5670a049551dab256fd3dc3fd667fd4a29c752e4f3ba700720a9fe2ecb47e232cfbb80832213bbaf3"}}}}}}, &(0x7f0000000600)={0x1, 0x4, [0x58f, 0x8001, 0x2bc, 0xf]}) syz_emit_vhci(&(0x7f0000000640)=@HCI_ACLDATA_PKT={0x2, {0xc9, 0x1, 0x0, 0xa2}, @l2cap_cid_signaling={{0x9e}, [@l2cap_info_req={{0xa, 0x4, 0x2}, {0x5}}, @l2cap_move_chan_rsp={{0xf, 0x7, 0x4}, {0x1, 0x1ff}}, @l2cap_info_rsp={{0xb, 0x8, 0x64}, {0x1, 0x9, "7d0c09e4aa3ea5a78a46cf8d66857ba4107e5cf880621c4c433cdb0a8bd03a4f9c8f390145f9db0c1dd85656d6b3dc38afb84d7e118e1cbdd6926b1876be6a6553bafa1bfef971281350403e18e82e89f42bb6d51b166bd96dabf25dbb28f01e"}}, @l2cap_disconn_req={{0x6, 0x64, 0x4}, {0x9, 0x1}}, @l2cap_move_chan_cfm={{0x10, 0x2, 0x4}, {0xffff, 0x9}}, @l2cap_create_chan_rsp={{0xd, 0x4f, 0x8}, {0x6, 0x8001, 0x8, 0x3}}, @l2cap_conn_rsp={{0x3, 0x48, 0x8}, {0x4, 0x8, 0x6837, 0x4}}]}}, 0xa7) syz_extract_tcp_res(&(0x7f0000000700), 0x0, 0x507) r6 = openat$cuse(0xffffffffffffff9c, &(0x7f0000000740), 0x2, 0x0) ioctl$DRM_IOCTL_GET_CLIENT(0xffffffffffffffff, 0xc0286405, &(0x7f0000002a80)={0x7, 0x4, {r5}, {0x0}, 0x100000000, 0x3}) shmctl$auto_IPC_STAT(0x8, 0x2, &(0x7f0000002b80)={{0x1, 0x0, 0xee00, 0x5, 0x9, 0x8c, 0x6}, 0xe0000, 0x3, 0x6, 0x2c54, @raw=0x7fffffff, @raw=0x5, 0x3, 0x0, &(0x7f0000002ac0)="34d14592330d2effe2b242ce1c79f97a737dc0f7745d84eec469048ba4772d3ca2f34e3a83b5edadf6550e5b412cf5ee749b3324b30032ad2ae14cfa29ef4ecf97416fdc53d73bb80ea139aac1bf364ddcbe7409342155ae126f63d9e3ab1d5104befdd9", &(0x7f0000002b40)="e550413c2f469c9ef08eb7193b0a242e58befe012aa89d7c"}) r9 = setfsuid$auto(0xee01) r10 = getuid() fstat(r3, &(0x7f0000002ec0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) ioctl$DRM_IOCTL_GET_CLIENT(0xffffffffffffffff, 0xc0286405, &(0x7f0000002f40)={0x9, 0x6, {0xffffffffffffffff}, {0xee01}, 0x9, 0x8}) ioctl$auto_XFS_IOC_SWAPEXT(0xffffffffffffffff, 0xc0c0586d, &(0x7f0000002f80)={0x1, @inferred=r3, @inferred=r3, 0x0, 0x0, '\x00', {0x100, 0x6, 0x4, 0x0, 0xee01, 0x4, 0x2, 0xe78bc90, {0x9e350, 0x10}, {0x4, 0x7}, {0x3a83, 0x80000000}, 0xff, 0x8, 0x7, 0x7, 0x5, 0xd275, 0x6, 0x1, 0xff74, 0x5, '\x00', 0xf0e, 0x400, 0x2, 0x8001}}) msgctl$auto_IPC_RMID(0x2, 0x0, &(0x7f00000030c0)={{0x80, 0x0, 0xee01, 0x8, 0x3, 0x3, 0x6}, &(0x7f0000003040)=0xf, &(0x7f0000003080)=0x29, 0xfffffffffffff801, 0x6b4c, 0x0, 0x3, 0x800, 0x2, 0xbf09, 0x3, @inferred=r2, @inferred=r4}) ioctl$auto_KVM_GET_DEVICE_ATTR(0xffffffffffffffff, 0x4018aee2, &(0x7f0000003140)={0xb407, 0xee01, 0x8, 0x8}) statx$auto(0xffffffffffffff9c, &(0x7f0000003180)='./file0\x00', 0x4, 0x2, &(0x7f00000031c0)={0x8, 0xfffffffe, 0x0, 0xa, 0x0, 0xee00, 0xf, 0x5d3e, 0x5, 0x10, 0xff89, 0x100, {0xf, 0x8}, {0xfff, 0x2}, {0x3, 0x7fff}, {0xffffffffffffffff, 0x9}, 0x0, 0x3, 0x7, 0x8d6, 0x383d, 0x4, 0xb0d4, 0x503, 0x2, 0x0, 0x5, 0x2, [0xfffffffffffffffb, 0xff, 0x3, 0x259, 0xbe9, 0xff, 0x6, 0x800, 0x9]}) shmctl$auto_IPC_SET(0x3, 0x1, &(0x7f0000004300)={{0x5, 0xee00, 0xee00, 0x3, 0x7ff, 0x2, 0x5}, 0x2, 0x401, 0x3, 0xfffffffffffffffe, @inferred=r1, @inferred=r4, 0xfffe, 0x0, &(0x7f00000032c0)="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", &(0x7f00000042c0)="14dc2c36c1a4730f33f0a47756b437792e9ac78f742f821e328341e02b"}) newfstatat(0xffffffffffffff9c, &(0x7f0000004600)='./file0\x00', &(0x7f0000004640)={0x0, 0x0, 0x0, 0x0, 0x0}, 0x0) fstat(r3, &(0x7f00000046c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) shmctl$auto(0x0, 0x7, &(0x7f00000058c0)={{0xffffffff, 0xee00, 0xffffffffffffffff, 0x2, 0x9, 0x2, 0x4}, 0x6, 0x4, 0x4, 0x1, @raw, @inferred=r4, 0x40, 0x0, &(0x7f0000004840)="be999eee258959e93a2aa68dc2cb1d93b819d2b9d9e678e2e2506d54510e920728d75815bb8027e6a021febb8f0996f8add6877b74ce5eace74504cf3a4f3ac46a5a59400342351940bfb8767dd9955c9e9a9941", &(0x7f00000048c0)="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lstat$auto(&(0x7f0000005940)='./file0\x00', &(0x7f0000005980)={0x100000000, 0x7d80, 0x1, 0x40, 0xffffffffffffffff, 0x0, 0x0, 0x7, 0xfffffffffffffffb, 0x0, 0x2, 0xe6, 0x2, 0x4, 0xa03f, 0x10, 0x7}) syz_fuse_handle_req(r6, 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", 0x2000, &(0x7f0000005b80)={&(0x7f0000002780)={0x50, 0xffffffffffffffda, 0x7, {0x7, 0x2d, 0x8, 0x1020000, 0xfffc, 0x401, 0x12, 0x6, 0x0, 0x0, 0x40, 0xce}}, &(0x7f0000002800)={0x18, 0x0, 0x6, {0xbb}}, &(0x7f0000002840)={0x18, 0x0, 0x1, {0x5}}, &(0x7f0000002880)={0x18, 0xfffffffffffffff5, 0x4}, &(0x7f00000028c0)={0x18, 0xfffffffffffffffe, 0x3, {0x7}}, &(0x7f0000002900)={0x28, 0x0, 0x300000000000, {{0x1, 0x8, 0x0, r1}}}, &(0x7f0000002940)={0x60, 0x0, 0xc, {{0x0, 0xff, 0x2, 0x41, 0x40, 0x6, 0x8dd, 0x5}}}, &(0x7f00000029c0)={0x18, 0xffffffffffffffda, 0x9, {0x5}}, &(0x7f0000002a00)={0x16, 0x0, 0x6, {'\xff\xff\xff\xff\xff\xff'}}, &(0x7f0000002a40)={0x20, 0x0, 0x0, {0x0, 0x1e}}, &(0x7f0000002c00)={0x78, 0xfffffffffffffffe, 0x3, {0x8, 0x6, 0x0, {0x0, 0x8, 0x2, 0x8, 0x80, 0x5, 0x3482, 0xa246, 0x80000000, 0x4000, 0x3e08, r7, r8, 0x7f, 0x3}}}, &(0x7f0000002c80)={0x90, 0xffffffffffffffda, 0x2, {0x6, 0x0, 0x2, 0x8, 0xfffffffc, 0x9, {0x1, 0x3, 0x2, 0x5, 0x761, 0x7, 0x58d95c3d, 0x7, 0x7, 0x8000, 0x8, r9, 0xee01, 0x0, 0x400}}}, &(0x7f0000002d40)={0x158, 0x0, 0x8000000000000001, [{0x0, 0x0, 0x0, 0x5}, {0x2, 0x291, 0x3, 0x0, 'a-$'}, {0x6, 0x1, 0x1a, 0x5df9, 'bpf_lsm_inode_getsecurity\x00'}, {0x5, 0x4}, {0x3, 0x2, 0x7, 0x615d, ']F,[@%('}, {0x3, 0x4, 0x2, 0x5, '#*'}, {0x6, 0xc, 0x1, 0x200, '!'}, {0x2, 0x1, 0x3, 0xffff, '%[*'}, {0x2, 0x1, 0x6, 0x10001, '\xbb\xbb\xbb\xbb\xbb\xbb'}, {0x2, 0x9, 0x3, 0x3, '\\$&'}]}, &(0x7f0000004380)={0x280, 0x0, 0x7, [{{0x1, 0x2, 0x9b, 0xa, 0x40, 0x2b, {0x1, 0x0, 0xf5, 0x7, 0x8, 0x7, 0x5, 0x9, 0x1b, 0xa000, 0x4, r10, r12, 0x4, 0x10000}}, {0x4, 0x6, 0x0, 0x7f}}, {{0x1, 0x0, 0x9, 0x4, 0x9, 0x101, {0x0, 0x80, 0x80000001, 0x8, 0x7fffffffffffffff, 0xc14, 0x7, 0x2, 0x5, 0x1000, 0x7, r13, r16, 0x7, 0x3}}, {0x1, 0x8000000000000000, 0x0, 0x9}}, {{0x3, 0x1, 0x7, 0x3, 0x10000, 0xfff, {0x6, 0x3, 0x4, 0xffffffff, 0x5, 0x1, 0xcf, 0x5, 0x2, 0x3000, 0xf, r17, r18, 0xdda, 0x800}}, {0x0, 0x480, 0x1, 0x7, '\''}}, {{0x3, 0x0, 0x6, 0x6, 0xae90, 0x7fff, {0x5, 0x2, 0xffff, 0xb6, 0x9, 0x8, 0x200, 0x3, 0x6, 0x6000, 0xfffffff7, r19, r20, 0x4, 0x6}}, {0x0, 0x3, 0x6, 0xfffffffd, 'wlan0\x00'}}]}, &(0x7f0000004740)={0xa0, 0xfffffffffffffffe, 0x7fff, {{0x1, 0x2, 0x8, 0x8001, 0x9000, 0x0, {0x3, 0x4, 0x4283, 0x6, 0x7, 0x1, 0x4, 0x8000, 0x7f, 0x2000, 0xa, r22, r24, 0x2, 0x9}}}}, &(0x7f0000004800)={0x20, 0x0, 0xa, {0x8}}, &(0x7f0000005a40)={0x130, 0x0, 0x800, {0x10000000, 0x9, 0x0, '\x00', {0x4, 0xfffffff9, 0x8, 0xd, r25, r27, 0x4000, '\x00', 0xe, 0x1, 0x9, 0x4, {0x75, 0x10}, {0x0, 0x2a}, {0x4, 0x647}, {0x8, 0xfffffffa}, 0x4, 0x9, 0xf1, 0x7}}}}) r28 = socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$SEG6(&(0x7f0000005c40), r28) syz_init_net_socket$802154_dgram(0x24, 0x2, 0x0) r29 = syz_io_uring_complete(0x0) syz_io_uring_setup(0x19f7, &(0x7f0000005c80)={0x0, 0x9c5d, 0x2, 0x1, 0x253, 0x0, r15}, &(0x7f0000005d00)=0x0, &(0x7f0000005d40)=0x0) syz_io_uring_submit(r30, r31, &(0x7f0000005dc0)=@IORING_OP_TIMEOUT={0xb, 0x28, 0x0, 0x0, 0x3, &(0x7f0000005d80), 0x1, 0x10, 0x1}) r32 = syz_kvm_setup_syzos_vm$x86(r15, &(0x7f0000bff000/0x400000)=nil) syz_kvm_add_vcpu$x86(r32, &(0x7f0000005e80)={0x0, &(0x7f0000005e00)=[@enable_nested={0x12c, 0x18}, @uexit={0x0, 0x18, 0x4}, @nested_create_vm={0x12d, 0x18, 0x2}], 0x48}) syz_kvm_setup_cpu$ppc64(r14, r29, &(0x7f0000c37000/0x18000)=nil, &(0x7f0000006100)=[{0x0, &(0x7f0000005ec0)="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", 0x230}], 0x1, 0x1, &(0x7f0000006140)=[@featur2={0x1, 0x7}], 0x1) syz_kvm_setup_syzos_vm$x86(r29, &(0x7f0000c00000/0x400000)=nil) syz_memcpy_off$IO_URING_METADATA_FLAGS(r30, 0x114, &(0x7f0000006180), 0x0, 0x4) r33 = socketcall$auto_SYS_SOCKET(0x1, &(0x7f0000006240)=0x5) shmctl$auto_SHM_INFO(0x80000000, 0xe, &(0x7f0000006340)={{0xfffffffa, r11, r27, 0x3, 0xffff, 0xe6b, 0x7}, 0x0, 0x357b, 0x3, 0x8000000000000000, @raw=0x74, @inferred=r21, 0xc0b, 0x0, &(0x7f0000006280)="7010159f68d5ae907137fa70d286a18ba48348f88d1fa097cfe82bb9559e66c97b4ccf3acd9ce240544907f4538170e45e0c6de8adfb6ae94ed44b616a63737814f1894473d9519f2130e8a0e061c96e46a99a5316e46b6b461348bb03dddad70675bcda5921bdb5038cc7dcade7ba3e106cf315e2ad48818a62c7", &(0x7f0000006300)="1368248ad908eb425081239c0a10a514ef06f16fa38bc52b0f03b04d36f544263cb4a0a3ffbbafa80089cf8b02841df433c6b97da8fbfe285fccd05ad4"}) syz_mount_image$fuse(&(0x7f00000061c0), &(0x7f0000006200)='./file0\x00', 0x400, &(0x7f00000063c0)={{'fd', 0x3d, r33}, 0x2c, {'rootmode', 0x3d, 0x1000}, 0x2c, {'user_id', 0x3d, r23}, 0x2c, {'group_id', 0x3d, r34}, 0x2c, {[{@blksize={'blksize', 0x3d, 0x600}}, {}, {@blksize={'blksize', 0x3d, 0x1e00}}, {@max_read={'max_read', 0x3d, 0x100000001}}, {@default_permissions}, {@default_permissions}], [{@euid_lt={'euid<', r13}}, {@subj_user={'subj_user', 0x3d, ','}}, {@uid_lt={'uid<', r26}}, {@audit}, {@dont_measure}]}}, 0x0, 0x0, &(0x7f0000006540)="d3aa92") syz_open_dev$I2C(&(0x7f0000006580), 0x800, 0x40000) syz_open_procfs(r5, &(0x7f00000065c0)='cgroup\x00') syz_open_pts(r14, 0x201) syz_pidfd_open(r35, 0x0) r36 = pkey_alloc(0x0, 0x2) syz_pkey_set(r36, 0x0) syz_socket_connect_nvme_tcp() r37 = syz_usb_connect(0x3, 0x504, &(0x7f0000006600)={{0x12, 0x1, 0x310, 0xf, 0x36, 0x49, 0x8, 0x7d0, 0x4101, 0x4624, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x4f2, 0x3, 0x1, 0xa2, 0x40, 0x64, [{{0x9, 0x4, 0xc2, 0x7, 0xa, 0x50, 0xb3, 0x17, 0x7, [@hid_hid={0x9, 0x21, 0x3, 0xdf, 0x1, {0x22, 0x238}}, @uac_as={[@as_header={0x7, 0x24, 0x1, 0x2, 0x2, 0x2}, @format_type_i_continuous={0xb, 0x24, 0x2, 0x1, 0xde, 0x2, 0x0, 0x5, "", "116df7"}, @format_type_ii_discrete={0xa, 0x24, 0x2, 0x2, 0x8, 0x3, 0x7, ';'}, @format_type_i_continuous={0xa, 0x24, 0x2, 0x1, 0x4, 0x3, 0x1a, 0x9, "0f58"}, @format_type_ii_discrete={0xc, 0x24, 0x2, 0x2, 0xf270, 0x100, 0x7, "3129f9"}, @format_type_i_continuous={0xb, 0x24, 0x2, 0x1, 0x1, 0x3, 0xf9, 0xa3, "", "540613"}]}], [{{0x9, 0x5, 0x3, 0x38, 0x8, 0x1, 0xf9, 0x0, [@uac_iso={0x7, 0x25, 0x1, 0x1, 0x80, 0xffb0}, @generic={0x62, 0xe, "0bef679d6359d71a144a38a22834d12bd19c60b65829f44ebe6b1258a3a7a0cc60f30007c2c4d2a3cb88fb6beb580e628147114ffc6a4e39b19e718fc2cd0fa5af688649abe3db58d0707203283b6bdca05f49fb16b3618fcf4dd01cb2ef3509"}]}}, {{0x9, 0x5, 0x4, 0x0, 0x20, 0x1, 0x2, 0x5, [@generic={0x4e, 0xa, "aade99ccf348061ad92225e05a396a2ebe892ca65de9efa665821e34200c5caa943c9b1a3eb10828e13815e6120c4787a4d395b1e32a8ba1ffb991375879d517862de6e9cb6f723335dd156a"}]}}, {{0x9, 0x5, 0x3, 0xc, 0x3ff, 0x7, 0x0, 0x7f, [@generic={0x33, 0xe, "08b928c563b3fbc136beaf22bf46e0cf55e3f262485f30b28a3f9a3ec901ce8066c6788d469526c55bf0c2b3ca5005539a"}]}}, {{0x9, 0x5, 0xb, 0x4, 0x3ff, 0x3, 0x40, 0x7f, [@uac_iso={0x7, 0x25, 0x1, 0x87, 0x9, 0x4e}, @generic={0xcb, 0x11, "3b9dcacc679086d78f927ab634935a18813b23cceffea69b630aa97cc469907afac2a30327adeb901d9fb900ad82138098cbff5fed7fee2c7d701290ce4ad020a9da29675f8f051399879db57022b89c990120513aaa70c51847b128dd73bdea25cbb545c1ae8352024ca93cd7ea881cbb0920eedef072efe9da61b7bd77a3c085d712c142ca88c39f8edd17d6fb9a7ef8d0fad5a15a333e7ed05e7e9ae6e2a464c3159ab1a60e33afbf29a2f678c8c9e2f8f7a8d03d5582529b277b4be85583e5d81bc95749773042"}]}}, {{0x9, 0x5, 0x1, 0x3, 0x8, 0xe, 0x8, 0x7f, [@generic={0x72, 0x6, "6ee2410469b7a8b23e3255a554b63d5beb1b34b4871894e3df69e7558ce56cc83b83ae1ac9d1dec0882d040a7801a300c7eac26d78d2daff6bd47caca500d46c1b5a0b9e1ada0e7b606b6fd6b39db81c7c954c04d4ede980ea2ca80b113bdb4be747e1b6dc9281d77e85683aaac6534c"}]}}, {{0x9, 0x5, 0xb, 0xc, 0x5bf5a5d27b9960e1, 0x0, 0x1, 0x7}}, {{0x9, 0x5, 0x0, 0x0, 0x10, 0x5, 0x1, 0x77}}, {{0x9, 0x5, 0x5, 0x0, 0x208, 0x1b, 0x9, 0x7}}, {{0x9, 0x5, 0xf, 0x0, 0x40, 0x30, 0x5, 0x7, [@generic={0x50, 0x6, "011daf9ad3aea956d0184e8907d7b0b0a6aa9e921ac64d7a9e5a0ce5b5e0afb47868c9c4a76b6509835bf9ee45a7891eaad172a875634f7f36260124669b2d1b04c2fda38cc936921cb561245efa"}, @generic={0xb7, 0x21, "53542a37449c9d1a4e696a99527d5ad5bdad1c7e724128df50295aa0c61401ca6cd5cd356977f617e8b11448466269116af93b9dce05ded48792719f65bfa91da16b85ee1d6236084d8170f97c0a74f102663c645b0ee1b0fa7904e646438d8b16218604561c1abb98289e3ecba88e78f67361478774462a4d82749646452004b2482082e9c1b2f2972419f6f752e1bec5e1925fce215edb8265344da85b85164db3c633e4e431fec4c609664eac2b6b1f5f7bdc10"}]}}, {{0x9, 0x5, 0xc, 0x10, 0x10, 0x3, 0xf9, 0xff, [@generic={0xba, 0x23, "5c48a51f46fa078d84ce434e722a7fa4e7021ae9d9b76677366de6a10ab3e94e0969d7fc2a24536e1150d94672c5418b02951def7e20c7dfe0aa26adbf0bfd8f6dd351fa30990713537134af9c14fa84dee2b95af8e134542b5a1ad540329a97cbdd1a2422f13e6e03b49f7105a6bf4900ea723fbe14f21d182aeef2cf5162591f8bd38b85d45d723cef02132b5e45467dd8d430c378b8bf2d98403267010379de7bd04c800dfd5fae0c0ddac0b5cffde98ca400dce30ddd"}]}}]}}, {{0x9, 0x4, 0xfc, 0x4, 0x1, 0xff, 0x6, 0x39, 0xc, [], [{{0x9, 0x5, 0x0, 0x2, 0x400, 0x9, 0xdf, 0x2, [@uac_iso={0x7, 0x25, 0x1, 0x3, 0x8, 0x8000}]}}]}}, {{0x9, 0x4, 0x9d, 0x1, 0x3, 0x48, 0x48, 0x40, 0xa, [], [{{0x9, 0x5, 0x1, 0x10, 0x40, 0x2, 0xf1, 0xc, [@uac_iso={0x7, 0x25, 0x1, 0x81, 0x81, 0x5}]}}, {{0x9, 0x5, 0x7, 0x8, 0x40, 0x6, 0x0, 0x1, [@uac_iso={0x7, 0x25, 0x1, 0x2, 0x0, 0x10}, @generic={0x6, 0xe, "555dc78c"}]}}, {{0x9, 0x5, 0x5, 0x4, 0x200, 0x9, 0x40, 0x3}}]}}]}}]}}, &(0x7f0000006c00)={0xa, &(0x7f0000006b40)={0xa, 0x6, 0x200, 0x3b, 0x5, 0x9, 0x40, 0xa4}, 0x30, &(0x7f0000006b80)={0x5, 0xf, 0x30, 0x3, [@ptm_cap={0x3}, @ssp_cap={0x10, 0x10, 0xa, 0x1c, 0x1, 0x7ffffd3, 0xff00, 0x1fb, [0x0]}, @ssp_cap={0x18, 0x10, 0xa, 0xf, 0x3, 0x8, 0xff00, 0xd00, [0x0, 0xffc0cf, 0xff0000]}]}, 0x1, [{0x4, &(0x7f0000006bc0)=@lang_id={0x4, 0x3, 0x42f}}]}) r38 = syz_usb_connect_ath9k(0x3, 0x5a, &(0x7f0000006c40)={{0x12, 0x1, 0x200, 0xff, 0xff, 0xff, 0x40, 0xcf3, 0x9271, 0x108, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x48}}]}}, 0x0) r39 = syz_usb_connect$cdc_ecm(0x6, 0x8f, &(0x7f0000006cc0)={{0x12, 0x1, 0x310, 0x2, 0x0, 0x0, 0x8, 0x525, 0xa4a1, 0x40, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x7d, 0x1, 0x1, 0x6, 0x10, 0xb, [{{0x9, 0x4, 0x0, 0x4, 0x3, 0x2, 0x6, 0x0, 0xe, {{0xb, 0x24, 0x6, 0x0, 0x0, "d60132f149c6"}, {0x5, 0x24, 0x0, 0xbb8}, {0xd, 0x24, 0xf, 0x1, 0x7, 0x32a, 0x8, 0x1f}, [@obex={0x5, 0x24, 0x15, 0x101}, @mdlm={0x15, 0x24, 0x12, 0xfffc}, @network_terminal={0x7, 0x24, 0xa, 0xb, 0x9, 0xf, 0x2}, @call_mgmt={0x5, 0x24, 0x1, 0x1, 0xff}, @obex={0x5, 0x24, 0x15, 0x7ff}, @mbim_extended={0x8, 0x24, 0x1c, 0x5, 0x32, 0xa}]}, {[{{0x9, 0x5, 0x81, 0x3, 0x10, 0x7, 0x99, 0xb2}}], {{0x9, 0x5, 0x82, 0x2, 0x8, 0x1a, 0x7, 0xc4}}, {{0x9, 0x5, 0x3, 0x2, 0x3ff, 0xa6, 0x3, 0xa7}}}}}]}}]}}, &(0x7f0000007240)={0xa, &(0x7f0000006d80)={0xa, 0x6, 0x300, 0xfb, 0x3, 0xc, 0xff, 0x1}, 0x3c, &(0x7f0000006dc0)={0x5, 0xf, 0x3c, 0x6, [@ext_cap={0x7, 0x10, 0x2, 0x4, 0x7, 0x7, 0x56a9}, @wireless={0xb, 0x10, 0x1, 0x4, 0x42, 0x2, 0x3, 0x63ac, 0x9}, @ptm_cap={0x3}, @ext_cap={0x7, 0x10, 0x2, 0x1a, 0x7, 0xb, 0xd5}, @ssp_cap={0x10, 0x10, 0xa, 0x7f, 0x1, 0x12f, 0xf00, 0x1, [0x3fc0]}, @wireless={0xb, 0x10, 0x1, 0x8, 0x40, 0x7, 0x5, 0x2, 0x4}]}, 0x8, [{0x78, &(0x7f0000006e00)=@string={0x78, 0x3, "d7b4cadb72dce27ca7fb5209aad1b3585c8188f06126d3f18edd4cfa47addbd2a6715dd4adfa697f02bcb089ed2013268885f9c785bd7c5d4ee50de3cecd7a9d0b7b2e708226e8acb1e908b1f5c0c2a8132465e451fe49f15e60c8d3b9c84305d0dd8f634480050259cac3ce9cfc95092bd7e491866d"}}, {0x13, &(0x7f0000006e80)=@string={0x13, 0x3, "7d97d9eb8af2943b9985d30caaead89b5a"}}, {0x4, &(0x7f0000006ec0)=@lang_id={0x4, 0x3, 0x44a}}, {0x4, &(0x7f0000006f00)=@lang_id={0x4, 0x3, 0x1c09}}, {0x93, &(0x7f0000006f40)=@string={0x93, 0x3, "a7e5529238f796c9000c753f41b8183140f3914b76bf1c428ebe8d39c6f072b481ecad746274e7c538790d8c730d20517a2244a3781b115c07d40e9ec9c059f12d0d15f46ccf0cde26efa9d02a119e2cc5627c7f4241244d0843ef0018b12fc3cd467b5fdce58a6975d07ac352a42f1615178dcb0990aeca46461306816becdeb896bac765ded81ebd75ba4d97229b15a9"}}, {0xc2, &(0x7f0000007000)=@string={0xc2, 0x3, "d5a3d483012b31e49dfa33fd9593b4b668aa6f3f39301837d951daf256316819f5e71fa651bb06b2af65af27c7bf0fda1eaa1e32231b75f4d06d4923c76013e9d76a12202816ff8740a9fb4f2eceb27bd2e1ab1e7bd4ba7314b33d15e0fe65aa2b2e7ffb3236cb615493391feab3bfb828182fb60c4fd6fef422e106f384be633905ca1aaf83d9ddb2a2902e2a117de4e596145809b3b34b1ea432b412391ffb25ac255e7da11d994e7e9e98e0723a2757e580959dae6fa7ac2afb8dc5384b4a"}}, {0x5b, &(0x7f0000007100)=@string={0x5b, 0x3, "a794090968e46e97b7269fcae0f818bf9a99a50de60e5cda684721be6dc34820f912c338d7dc8ac50d93fc92a2ebde1a02652089726608a9e5877f4cacf91b9eec5b5eb2fc7fa7bb3d26607537f0e55d00793e7cf13bbb367e"}}, {0x90, &(0x7f0000007180)=@string={0x90, 0x3, "f9926b0dae8c462352105ed1c4d3ff50cc9ce982c397e92e576101317190c2327a2ba723844149e55f4b961d0f0defbc7edb70f5d61169074265acd81ceec5a15b66a5e5009236d062994af9afcbe04736aaad6bb55cb30e057c42d0df7481603c3c959b5e4e20f05382a9d9ad4c01680ae3597ef403dedf0b6c53fdc70d13ed116ef9ea902093f1c9f4af4cec25"}}]}) syz_usb_control_io(r39, &(0x7f0000007480)={0x2c, &(0x7f00000072c0)={0x40, 0x7, 0x1b, {0x1b, 0xa, "90730f1d9e91d2e1df577143e18c680eace6d6c12299246128"}}, &(0x7f0000007300)={0x0, 0x3, 0x44, @string={0x44, 0x3, "87d74dd46096809a8f4988ddaa95a532fbc22d8585d1592857ad0ab00c17a4fef3b229a02fe0e3649316bed9f44f588b1f0b47bc86705129440938bd68a29a84f829"}}, &(0x7f0000007380)={0x0, 0xf, 0x41, {0x5, 0xf, 0x41, 0x4, [@ssp_cap={0x20, 0x10, 0xa, 0x0, 0x5, 0xe85, 0xf00, 0x3, [0xff00a0, 0xff00f0, 0x30, 0xf, 0xdfbf]}, @ext_cap={0x7, 0x10, 0x2, 0x4, 0x4, 0x1, 0xff}, @wireless={0xb, 0x10, 0x1, 0x2, 0x1, 0x1, 0x3, 0x9, 0x8}, @ss_cap={0xa, 0x10, 0x3, 0x2, 0x4, 0x3, 0xb6, 0x5}]}}, &(0x7f0000007400)={0x20, 0x29, 0xf, {0xf, 0x29, 0xf, 0x4, 0x6, 0x32, "b2c84f72", "f5fb7b90"}}, &(0x7f0000007440)={0x20, 0x2a, 0xc, {0xc, 0x2a, 0x3a, 0x60, 0x4, 0x4, 0x7, 0x8001, 0x8}}}, &(0x7f0000007980)={0x84, &(0x7f00000074c0)={0x0, 0x0, 0xcf, "9f51c6ee54bfc1fc30d787499ab24493c2f30f78fe088e724ad29badb6c2406874a909d80e000075bbe92f6f4e8b3514481d12b869deb6f47f3b458369b7f024fcc02319e38cb7467c76b370d378ee0256daa3acea1f71be5e4c7d8a50037ba84e62445bbd990a26b44f60198d63505fbf005b96637abf5eb692a2ed0d582692e3f259387ed9d1955917dc53a246eb20e281e78386ed8734b81075e43b5b3e15ea60dbd497e07ad8847992dd87831b20d05263c108d70117e52170efac1777d3d376876358c2297172b2a023b52c05"}, &(0x7f00000075c0)={0x0, 0xa, 0x1, 0x2}, &(0x7f0000007600)={0x0, 0x8, 0x1, 0xfc}, &(0x7f0000007640)={0x20, 0x0, 0x4, {0x3, 0x1}}, &(0x7f0000007680)={0x20, 0x0, 0x4, {0x1d20, 0x20}}, &(0x7f00000076c0)={0x40, 0x7, 0x2, 0xfff8}, &(0x7f0000007700)={0x40, 0x9, 0x1, 0xd}, &(0x7f0000007740)={0x40, 0xb, 0x2, "2289"}, &(0x7f0000007780)={0x40, 0xf, 0x2, 0x2}, &(0x7f00000077c0)={0x40, 0x13, 0x6, @broadcast}, &(0x7f0000007800)={0x40, 0x17, 0x6, @random="eefa7a620165"}, &(0x7f0000007840)={0x40, 0x19, 0x2, "01d3"}, &(0x7f0000007880)={0x40, 0x1a, 0x2, 0x5}, &(0x7f00000078c0)={0x40, 0x1c, 0x1, 0xff}, &(0x7f0000007900)={0x40, 0x1e, 0x1, 0xf7}, &(0x7f0000007940)={0x40, 0x21, 0x1, 0xb}}) syz_usb_disconnect(r38) r40 = syz_usb_connect$hid(0x0, 0x3f, &(0x7f0000007a40)={{0x12, 0x1, 0x110, 0x0, 0x0, 0x0, 0xff, 0x46d, 0xc08d, 0x40, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x2d, 0x1, 0x1, 0x4, 0x50, 0x10, [{{0x9, 0x4, 0x0, 0xf9, 0x2, 0x3, 0x1, 0x2, 0x5, {0x9, 0x21, 0x81, 0x8, 0x1, {0x22, 0x6e7}}, {{{0x9, 0x5, 0x81, 0x3, 0x10, 0x8, 0xc, 0x6e}}, [{{0x9, 0x5, 0x2, 0x3, 0x200, 0x8, 0x1, 0x50}}]}}}]}}]}}, &(0x7f0000007f40)={0xa, &(0x7f0000007a80)={0xa, 0x6, 0x310, 0x48, 0xa5, 0xca, 0x8, 0x10}, 0x30, &(0x7f0000007ac0)={0x5, 0xf, 0x30, 0x4, [@ss_cap={0xa, 0x10, 0x3, 0x0, 0x5, 0x0, 0x1, 0x8a}, @ssp_cap={0x10, 0x10, 0xa, 0xa, 0x1, 0x0, 0xf00f, 0x7, [0x3f00]}, @ss_cap={0xa, 0x10, 0x3, 0x0, 0x4, 0x4, 0x8, 0xfff8}, @ext_cap={0x7, 0x10, 0x2, 0x4, 0x0, 0x5, 0x8001}]}, 0xa, [{0x4, &(0x7f0000007b00)=@lang_id={0x4, 0x3, 0x437}}, {0xf2, &(0x7f0000007b40)=@string={0xf2, 0x3, "f0019969b38f6afabd6c105967f2b79c116bf52e6af549271939cbeacdab5c8503cee7d1a67a62ea491b6b2f8647133f15b8e9707e4a77577e8afd8a1284459b66c7be93c43e84efcfc2f73e93d295998cc2f495ae5b1a3d5e12ef6e64664a3b5c79528b0119f78b0a61d807232537eb3d9c09add93823e6f878bbba00898be1017faf4e5f14d387401c45645954c04f8c83f9e5f0ae9913d9ccb88e7516d80f8e21c3b610429258169248a016de144abce7905f4dd3bf2698e9f3a5febc7c10ef4ed298e5f8facbb3c9344bb3ab33568a0f64f428d60dabe2bfe795df0603cdf76f606241fdd89c8ff9fe55ee2395fd"}}, {0x4, &(0x7f0000007c40)=@lang_id={0x4, 0x3, 0x2c0a}}, {0x89, &(0x7f0000007c80)=@string={0x89, 0x3, "05b7615d7a2ba83f5916d585e5290669a0c243e1c65f43d6c7680767f0da6805ce3566413a20f4b8664b77799c5c6061d9d19075d2f89b880caa622d3aa9108e5222e55336bf7850d2f7990a1314b0be81d606f8a99a6705e0ac44872072366abaea5f97d7ca08ed1eb25b707c92991e5537f945aa401d761349b628d6c928c1cfe5b09fd13272"}}, {0xb8, &(0x7f0000007d40)=@string={0xb8, 0x3, "f04a78648bb13ad6c53b44e42ed2f24d3205bf5161674ff375ecfa9f710dd4d52e29779bc4c1d41faf1b2e02fa2cb4ca6c449681b5c88b3775f82babde2258f8a001d811f8b64ce0753b228c161809770f39160ba4ea92490a38f82c3f18b44c81a148c48bbc4f716e64a85a985f3570d6132a4ac6e97f0ae7296582879c5d4e277be3d5867dc3df2606879bd5281225a34f3feba436eec16ddfbe611574be645a71c5e8be494e27918333f2431aeff2e9fed0608428"}}, {0x4, &(0x7f0000007e00)=@lang_id={0x4, 0x3, 0x40f}}, {0x4, &(0x7f0000007e40)=@lang_id={0x4, 0x3, 0x860}}, {0x4, &(0x7f0000007e80)=@lang_id={0x4, 0x3, 0xf4ef}}, {0x4, &(0x7f0000007ec0)=@lang_id={0x4, 0x3, 0x3001}}, {0x4, &(0x7f0000007f00)=@lang_id={0x4, 0x3, 0x2009}}]}) syz_usb_ep_read(r40, 0x0, 0x1000, &(0x7f0000008000)=""/4096) syz_usb_ep_write(r37, 0x6, 0x94, &(0x7f0000009000)="57bba2f04f3945da7a47037710f6d53d8dfad8a96c57e11cf5fcfee434fce88038e1904ecc2712334118e5002b0c107c286eb90314233fd5ce1d9ea5da0076741102d88517463ff118bd931282412de1f5ea71eb2bec91b82b7f7b64f8aae1d58e32de1deeb1c8264d59d639a1945f0090275e6bdbf18e86685ccb60a5fec9c7cebac5d05b5c84e6116f89d443fad3ce74d82080") syz_usbip_server_init(0x5) csource_test.go:158: failed to build program: // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifndef __NR_clone3 #define __NR_clone3 435 #endif #ifndef __NR_io_uring_setup #define __NR_io_uring_setup 425 #endif #ifndef __NR_memfd_create #define __NR_memfd_create 319 #endif #ifndef __NR_pidfd_open #define __NR_pidfd_open 434 #endif #ifndef __NR_pkey_alloc #define __NR_pkey_alloc 330 #endif #ifndef __NR_statx #define __NR_statx 332 #endif static unsigned long long procid; static void sleep_ms(uint64_t ms) { usleep(ms * 1000); } static uint64_t current_time_ms(void) { struct timespec ts; if (clock_gettime(CLOCK_MONOTONIC, &ts)) exit(1); return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000; } static void use_temporary_dir(void) { char tmpdir_template[] = "./syzkaller.XXXXXX"; char* tmpdir = mkdtemp(tmpdir_template); if (!tmpdir) exit(1); if (chmod(tmpdir, 0777)) exit(1); if (chdir(tmpdir)) exit(1); } static void thread_start(void* (*fn)(void*), void* arg) { pthread_t th; pthread_attr_t attr; pthread_attr_init(&attr); pthread_attr_setstacksize(&attr, 128 << 10); int i = 0; for (; i < 100; i++) { if (pthread_create(&th, &attr, fn, arg) == 0) { pthread_attr_destroy(&attr); return; } if (errno == EAGAIN) { usleep(50); continue; } break; } exit(1); } #define BITMASK(bf_off,bf_len) (((1ull << (bf_len)) - 1) << (bf_off)) #define STORE_BY_BITMASK(type,htobe,addr,val,bf_off,bf_len) *(type*)(addr) = htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) | (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len)))) typedef struct { int state; } event_t; static void event_init(event_t* ev) { ev->state = 0; } static void event_reset(event_t* ev) { ev->state = 0; } static void event_set(event_t* ev) { if (ev->state) exit(1); __atomic_store_n(&ev->state, 1, __ATOMIC_RELEASE); syscall(SYS_futex, &ev->state, FUTEX_WAKE | FUTEX_PRIVATE_FLAG, 1000000); } static void event_wait(event_t* ev) { while (!__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE)) syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, 0); } static int event_isset(event_t* ev) { return __atomic_load_n(&ev->state, __ATOMIC_ACQUIRE); } static int event_timedwait(event_t* ev, uint64_t timeout) { uint64_t start = current_time_ms(); uint64_t now = start; for (;;) { uint64_t remain = timeout - (now - start); struct timespec ts; ts.tv_sec = remain / 1000; ts.tv_nsec = (remain % 1000) * 1000 * 1000; syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, &ts); if (__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE)) return 1; now = current_time_ms(); if (now - start > timeout) return 0; } } static bool write_file(const char* file, const char* what, ...) { char buf[1024]; va_list args; va_start(args, what); vsnprintf(buf, sizeof(buf), what, args); va_end(args); buf[sizeof(buf) - 1] = 0; int len = strlen(buf); int fd = open(file, O_WRONLY | O_CLOEXEC); if (fd == -1) return false; if (write(fd, buf, len) != len) { int err = errno; close(fd); errno = err; return false; } close(fd); return true; } struct nlmsg { char* pos; int nesting; struct nlattr* nested[8]; char buf[4096]; }; static void netlink_init(struct nlmsg* nlmsg, int typ, int flags, const void* data, int size) { memset(nlmsg, 0, sizeof(*nlmsg)); struct nlmsghdr* hdr = (struct nlmsghdr*)nlmsg->buf; hdr->nlmsg_type = typ; hdr->nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK | flags; memcpy(hdr + 1, data, size); nlmsg->pos = (char*)(hdr + 1) + NLMSG_ALIGN(size); } static void netlink_attr(struct nlmsg* nlmsg, int typ, const void* data, int size) { struct nlattr* attr = (struct nlattr*)nlmsg->pos; attr->nla_len = sizeof(*attr) + size; attr->nla_type = typ; if (size > 0) memcpy(attr + 1, data, size); nlmsg->pos += NLMSG_ALIGN(attr->nla_len); } static int netlink_send_ext(struct nlmsg* nlmsg, int sock, uint16_t reply_type, int* reply_len, bool dofail) { if (nlmsg->pos > nlmsg->buf + sizeof(nlmsg->buf) || nlmsg->nesting) exit(1); struct nlmsghdr* hdr = (struct nlmsghdr*)nlmsg->buf; hdr->nlmsg_len = nlmsg->pos - nlmsg->buf; struct sockaddr_nl addr; memset(&addr, 0, sizeof(addr)); addr.nl_family = AF_NETLINK; ssize_t n = sendto(sock, nlmsg->buf, hdr->nlmsg_len, 0, (struct sockaddr*)&addr, sizeof(addr)); if (n != (ssize_t)hdr->nlmsg_len) { if (dofail) exit(1); return -1; } n = recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0); if (reply_len) *reply_len = 0; if (n < 0) { if (dofail) exit(1); return -1; } if (n < (ssize_t)sizeof(struct nlmsghdr)) { errno = EINVAL; if (dofail) exit(1); return -1; } if (hdr->nlmsg_type == NLMSG_DONE) return 0; if (reply_len && hdr->nlmsg_type == reply_type) { *reply_len = n; return 0; } if (n < (ssize_t)(sizeof(struct nlmsghdr) + sizeof(struct nlmsgerr))) { errno = EINVAL; if (dofail) exit(1); return -1; } if (hdr->nlmsg_type != NLMSG_ERROR) { errno = EINVAL; if (dofail) exit(1); return -1; } errno = -((struct nlmsgerr*)(hdr + 1))->error; return -errno; } static int netlink_send(struct nlmsg* nlmsg, int sock) { return netlink_send_ext(nlmsg, sock, 0, NULL, true); } static int netlink_query_family_id(struct nlmsg* nlmsg, int sock, const char* family_name, bool dofail) { struct genlmsghdr genlhdr; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = CTRL_CMD_GETFAMILY; netlink_init(nlmsg, GENL_ID_CTRL, 0, &genlhdr, sizeof(genlhdr)); netlink_attr(nlmsg, CTRL_ATTR_FAMILY_NAME, family_name, strnlen(family_name, GENL_NAMSIZ - 1) + 1); int n = 0; int err = netlink_send_ext(nlmsg, sock, GENL_ID_CTRL, &n, dofail); if (err < 0) { return -1; } uint16_t id = 0; struct nlattr* attr = (struct nlattr*)(nlmsg->buf + NLMSG_HDRLEN + NLMSG_ALIGN(sizeof(genlhdr))); for (; (char*)attr < nlmsg->buf + n; attr = (struct nlattr*)((char*)attr + NLMSG_ALIGN(attr->nla_len))) { if (attr->nla_type == CTRL_ATTR_FAMILY_ID) { id = *(uint16_t*)(attr + 1); break; } } if (!id) { errno = EINVAL; return -1; } recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0); return id; } static int netlink_next_msg(struct nlmsg* nlmsg, unsigned int offset, unsigned int total_len) { struct nlmsghdr* hdr = (struct nlmsghdr*)(nlmsg->buf + offset); if (offset == total_len || offset + hdr->nlmsg_len > total_len) return -1; return hdr->nlmsg_len; } static void netlink_device_change(struct nlmsg* nlmsg, int sock, const char* name, bool up, const char* master, const void* mac, int macsize, const char* new_name) { struct ifinfomsg hdr; memset(&hdr, 0, sizeof(hdr)); if (up) hdr.ifi_flags = hdr.ifi_change = IFF_UP; hdr.ifi_index = if_nametoindex(name); netlink_init(nlmsg, RTM_NEWLINK, 0, &hdr, sizeof(hdr)); if (new_name) netlink_attr(nlmsg, IFLA_IFNAME, new_name, strlen(new_name)); if (master) { int ifindex = if_nametoindex(master); netlink_attr(nlmsg, IFLA_MASTER, &ifindex, sizeof(ifindex)); } if (macsize) netlink_attr(nlmsg, IFLA_ADDRESS, mac, macsize); int err = netlink_send(nlmsg, sock); if (err < 0) { } } static struct nlmsg nlmsg; const int kInitNetNsFd = 201; #define DEVLINK_FAMILY_NAME "devlink" #define DEVLINK_CMD_PORT_GET 5 #define DEVLINK_CMD_RELOAD 37 #define DEVLINK_ATTR_BUS_NAME 1 #define DEVLINK_ATTR_DEV_NAME 2 #define DEVLINK_ATTR_NETDEV_NAME 7 #define DEVLINK_ATTR_NETNS_FD 138 static void netlink_devlink_netns_move(const char* bus_name, const char* dev_name, int netns_fd) { struct genlmsghdr genlhdr; int sock; int id, err; sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC); if (sock == -1) exit(1); id = netlink_query_family_id(&nlmsg, sock, DEVLINK_FAMILY_NAME, true); if (id == -1) goto error; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = DEVLINK_CMD_RELOAD; netlink_init(&nlmsg, id, 0, &genlhdr, sizeof(genlhdr)); netlink_attr(&nlmsg, DEVLINK_ATTR_BUS_NAME, bus_name, strlen(bus_name) + 1); netlink_attr(&nlmsg, DEVLINK_ATTR_DEV_NAME, dev_name, strlen(dev_name) + 1); netlink_attr(&nlmsg, DEVLINK_ATTR_NETNS_FD, &netns_fd, sizeof(netns_fd)); err = netlink_send(&nlmsg, sock); if (err < 0) { } error: close(sock); } static struct nlmsg nlmsg2; static void initialize_devlink_ports(const char* bus_name, const char* dev_name, const char* netdev_prefix) { struct genlmsghdr genlhdr; int len, total_len, id, err, offset; uint16_t netdev_index; int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC); if (sock == -1) exit(1); int rtsock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE); if (rtsock == -1) exit(1); id = netlink_query_family_id(&nlmsg, sock, DEVLINK_FAMILY_NAME, true); if (id == -1) goto error; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = DEVLINK_CMD_PORT_GET; netlink_init(&nlmsg, id, NLM_F_DUMP, &genlhdr, sizeof(genlhdr)); netlink_attr(&nlmsg, DEVLINK_ATTR_BUS_NAME, bus_name, strlen(bus_name) + 1); netlink_attr(&nlmsg, DEVLINK_ATTR_DEV_NAME, dev_name, strlen(dev_name) + 1); err = netlink_send_ext(&nlmsg, sock, id, &total_len, true); if (err < 0) { goto error; } offset = 0; netdev_index = 0; while ((len = netlink_next_msg(&nlmsg, offset, total_len)) != -1) { struct nlattr* attr = (struct nlattr*)(nlmsg.buf + offset + NLMSG_HDRLEN + NLMSG_ALIGN(sizeof(genlhdr))); for (; (char*)attr < nlmsg.buf + offset + len; attr = (struct nlattr*)((char*)attr + NLMSG_ALIGN(attr->nla_len))) { if (attr->nla_type == DEVLINK_ATTR_NETDEV_NAME) { char* port_name; char netdev_name[IFNAMSIZ]; port_name = (char*)(attr + 1); snprintf(netdev_name, sizeof(netdev_name), "%s%d", netdev_prefix, netdev_index); netlink_device_change(&nlmsg2, rtsock, port_name, true, 0, 0, 0, netdev_name); break; } } offset += len; netdev_index++; } error: close(rtsock); close(sock); } static void initialize_devlink_pci(void) { int netns = open("/proc/self/ns/net", O_RDONLY); if (netns == -1) exit(1); int ret = setns(kInitNetNsFd, 0); if (ret == -1) exit(1); netlink_devlink_netns_move("pci", "0000:00:10.0", netns); ret = setns(netns, 0); if (ret == -1) exit(1); close(netns); initialize_devlink_ports("pci", "0000:00:10.0", "netpci"); } #define WIFI_INITIAL_DEVICE_COUNT 2 #define WIFI_MAC_BASE { 0x08, 0x02, 0x11, 0x00, 0x00, 0x00} #define WIFI_IBSS_BSSID { 0x50, 0x50, 0x50, 0x50, 0x50, 0x50} #define WIFI_IBSS_SSID { 0x10, 0x10, 0x10, 0x10, 0x10, 0x10} #define WIFI_DEFAULT_FREQUENCY 2412 #define WIFI_DEFAULT_SIGNAL 0 #define WIFI_DEFAULT_RX_RATE 1 #define HWSIM_CMD_REGISTER 1 #define HWSIM_CMD_FRAME 2 #define HWSIM_CMD_NEW_RADIO 4 #define HWSIM_ATTR_SUPPORT_P2P_DEVICE 14 #define HWSIM_ATTR_PERM_ADDR 22 #define IF_OPER_UP 6 struct join_ibss_props { int wiphy_freq; bool wiphy_freq_fixed; uint8_t* mac; uint8_t* ssid; int ssid_len; }; static int set_interface_state(const char* interface_name, int on) { struct ifreq ifr; int sock = socket(AF_INET, SOCK_DGRAM, 0); if (sock < 0) { return -1; } memset(&ifr, 0, sizeof(ifr)); strcpy(ifr.ifr_name, interface_name); int ret = ioctl(sock, SIOCGIFFLAGS, &ifr); if (ret < 0) { close(sock); return -1; } if (on) ifr.ifr_flags |= IFF_UP; else ifr.ifr_flags &= ~IFF_UP; ret = ioctl(sock, SIOCSIFFLAGS, &ifr); close(sock); if (ret < 0) { return -1; } return 0; } static int nl80211_set_interface(struct nlmsg* nlmsg, int sock, int nl80211_family, uint32_t ifindex, uint32_t iftype, bool dofail) { struct genlmsghdr genlhdr; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = NL80211_CMD_SET_INTERFACE; netlink_init(nlmsg, nl80211_family, 0, &genlhdr, sizeof(genlhdr)); netlink_attr(nlmsg, NL80211_ATTR_IFINDEX, &ifindex, sizeof(ifindex)); netlink_attr(nlmsg, NL80211_ATTR_IFTYPE, &iftype, sizeof(iftype)); int err = netlink_send_ext(nlmsg, sock, 0, NULL, dofail); if (err < 0) { } return err; } static int nl80211_join_ibss(struct nlmsg* nlmsg, int sock, int nl80211_family, uint32_t ifindex, struct join_ibss_props* props, bool dofail) { struct genlmsghdr genlhdr; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = NL80211_CMD_JOIN_IBSS; netlink_init(nlmsg, nl80211_family, 0, &genlhdr, sizeof(genlhdr)); netlink_attr(nlmsg, NL80211_ATTR_IFINDEX, &ifindex, sizeof(ifindex)); netlink_attr(nlmsg, NL80211_ATTR_SSID, props->ssid, props->ssid_len); netlink_attr(nlmsg, NL80211_ATTR_WIPHY_FREQ, &(props->wiphy_freq), sizeof(props->wiphy_freq)); if (props->mac) netlink_attr(nlmsg, NL80211_ATTR_MAC, props->mac, ETH_ALEN); if (props->wiphy_freq_fixed) netlink_attr(nlmsg, NL80211_ATTR_FREQ_FIXED, NULL, 0); int err = netlink_send_ext(nlmsg, sock, 0, NULL, dofail); if (err < 0) { } return err; } static int get_ifla_operstate(struct nlmsg* nlmsg, int ifindex, bool dofail) { struct ifinfomsg info; memset(&info, 0, sizeof(info)); info.ifi_family = AF_UNSPEC; info.ifi_index = ifindex; int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE); if (sock == -1) { return -1; } netlink_init(nlmsg, RTM_GETLINK, 0, &info, sizeof(info)); int n; int err = netlink_send_ext(nlmsg, sock, RTM_NEWLINK, &n, dofail); close(sock); if (err) { return -1; } struct rtattr* attr = IFLA_RTA(NLMSG_DATA(nlmsg->buf)); for (; RTA_OK(attr, n); attr = RTA_NEXT(attr, n)) { if (attr->rta_type == IFLA_OPERSTATE) return *((int32_t*)RTA_DATA(attr)); } return -1; } static int await_ifla_operstate(struct nlmsg* nlmsg, char* interface, int operstate, bool dofail) { int ifindex = if_nametoindex(interface); while (true) { usleep(1000); int ret = get_ifla_operstate(nlmsg, ifindex, dofail); if (ret < 0) return ret; if (ret == operstate) return 0; } return 0; } static int nl80211_setup_ibss_interface(struct nlmsg* nlmsg, int sock, int nl80211_family_id, char* interface, struct join_ibss_props* ibss_props, bool dofail) { int ifindex = if_nametoindex(interface); if (ifindex == 0) { return -1; } int ret = nl80211_set_interface(nlmsg, sock, nl80211_family_id, ifindex, NL80211_IFTYPE_ADHOC, dofail); if (ret < 0) { return -1; } ret = set_interface_state(interface, 1); if (ret < 0) { return -1; } ret = nl80211_join_ibss(nlmsg, sock, nl80211_family_id, ifindex, ibss_props, dofail); if (ret < 0) { return -1; } return 0; } #define SIZEOF_IO_URING_SQE 64 #define SIZEOF_IO_URING_CQE 16 #define SQ_HEAD_OFFSET 0 #define SQ_TAIL_OFFSET 64 #define SQ_RING_MASK_OFFSET 256 #define SQ_RING_ENTRIES_OFFSET 264 #define SQ_FLAGS_OFFSET 276 #define SQ_DROPPED_OFFSET 272 #define CQ_HEAD_OFFSET 128 #define CQ_TAIL_OFFSET 192 #define CQ_RING_MASK_OFFSET 260 #define CQ_RING_ENTRIES_OFFSET 268 #define CQ_RING_OVERFLOW_OFFSET 284 #define CQ_FLAGS_OFFSET 280 #define CQ_CQES_OFFSET 320 struct io_uring_cqe { uint64_t user_data; uint32_t res; uint32_t flags; }; static long syz_io_uring_complete(volatile long a0) { char* ring_ptr = (char*)a0; uint32_t cq_ring_mask = *(uint32_t*)(ring_ptr + CQ_RING_MASK_OFFSET); uint32_t* cq_head_ptr = (uint32_t*)(ring_ptr + CQ_HEAD_OFFSET); uint32_t cq_head = *cq_head_ptr & cq_ring_mask; uint32_t cq_head_next = *cq_head_ptr + 1; char* cqe_src = ring_ptr + CQ_CQES_OFFSET + cq_head * SIZEOF_IO_URING_CQE; struct io_uring_cqe cqe; memcpy(&cqe, cqe_src, sizeof(cqe)); __atomic_store_n(cq_head_ptr, cq_head_next, __ATOMIC_RELEASE); return (cqe.user_data == 0x12345 || cqe.user_data == 0x23456) ? (long)cqe.res : (long)-1; } struct io_sqring_offsets { uint32_t head; uint32_t tail; uint32_t ring_mask; uint32_t ring_entries; uint32_t flags; uint32_t dropped; uint32_t array; uint32_t resv1; uint64_t resv2; }; struct io_cqring_offsets { uint32_t head; uint32_t tail; uint32_t ring_mask; uint32_t ring_entries; uint32_t overflow; uint32_t cqes; uint64_t resv[2]; }; struct io_uring_params { uint32_t sq_entries; uint32_t cq_entries; uint32_t flags; uint32_t sq_thread_cpu; uint32_t sq_thread_idle; uint32_t features; uint32_t resv[4]; struct io_sqring_offsets sq_off; struct io_cqring_offsets cq_off; }; #define IORING_OFF_SQ_RING 0 #define IORING_OFF_SQES 0x10000000ULL #define IORING_SETUP_SQE128 (1U << 10) #define IORING_SETUP_CQE32 (1U << 11) static long syz_io_uring_setup(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { uint32_t entries = (uint32_t)a0; struct io_uring_params* setup_params = (struct io_uring_params*)a1; void** ring_ptr_out = (void**)a2; void** sqes_ptr_out = (void**)a3; setup_params->flags &= ~(IORING_SETUP_CQE32 | IORING_SETUP_SQE128); uint32_t fd_io_uring = syscall(__NR_io_uring_setup, entries, setup_params); uint32_t sq_ring_sz = setup_params->sq_off.array + setup_params->sq_entries * sizeof(uint32_t); uint32_t cq_ring_sz = setup_params->cq_off.cqes + setup_params->cq_entries * SIZEOF_IO_URING_CQE; uint32_t ring_sz = sq_ring_sz > cq_ring_sz ? sq_ring_sz : cq_ring_sz; *ring_ptr_out = mmap(0, ring_sz, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_POPULATE, fd_io_uring, IORING_OFF_SQ_RING); uint32_t sqes_sz = setup_params->sq_entries * SIZEOF_IO_URING_SQE; *sqes_ptr_out = mmap(0, sqes_sz, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_POPULATE, fd_io_uring, IORING_OFF_SQES); uint32_t* array = (uint32_t*)((uintptr_t)*ring_ptr_out + setup_params->sq_off.array); for (uint32_t index = 0; index < entries; index++) array[index] = index; return fd_io_uring; } static long syz_io_uring_submit(volatile long a0, volatile long a1, volatile long a2) { char* ring_ptr = (char*)a0; char* sqes_ptr = (char*)a1; char* sqe = (char*)a2; uint32_t sq_ring_mask = *(uint32_t*)(ring_ptr + SQ_RING_MASK_OFFSET); uint32_t* sq_tail_ptr = (uint32_t*)(ring_ptr + SQ_TAIL_OFFSET); uint32_t sq_tail = *sq_tail_ptr & sq_ring_mask; char* sqe_dest = sqes_ptr + sq_tail * SIZEOF_IO_URING_SQE; memcpy(sqe_dest, sqe, SIZEOF_IO_URING_SQE); uint32_t sq_tail_next = *sq_tail_ptr + 1; __atomic_store_n(sq_tail_ptr, sq_tail_next, __ATOMIC_RELEASE); return 0; } #define VHCI_HC_PORTS 8 #define VHCI_PORTS (VHCI_HC_PORTS * 2) static long syz_usbip_server_init(volatile long a0) { static int port_alloc[2]; int speed = (int)a0; bool usb3 = (speed == USB_SPEED_SUPER); int socket_pair[2]; if (socketpair(AF_UNIX, SOCK_STREAM, 0, socket_pair)) { return -1; } int client_fd = socket_pair[0]; int server_fd = socket_pair[1]; int available_port_num = __atomic_fetch_add(&port_alloc[usb3], 1, __ATOMIC_RELAXED); if (available_port_num > VHCI_HC_PORTS) { return -1; } int port_num = procid * VHCI_PORTS + usb3 * VHCI_HC_PORTS + available_port_num; char buffer[100]; sprintf(buffer, "%d %d %s %d", port_num, client_fd, "0", speed); write_file("/sys/devices/platform/vhci_hcd.0/attach", buffer); return server_fd; } #define BTF_MAGIC 0xeB9F struct btf_header { __u16 magic; __u8 version; __u8 flags; __u32 hdr_len; __u32 type_off; __u32 type_len; __u32 str_off; __u32 str_len; }; #define BTF_INFO_KIND(info) (((info) >> 24) & 0x0f) #define BTF_INFO_VLEN(info) ((info) & 0xffff) #define BTF_KIND_INT 1 #define BTF_KIND_ARRAY 3 #define BTF_KIND_STRUCT 4 #define BTF_KIND_UNION 5 #define BTF_KIND_ENUM 6 #define BTF_KIND_FUNC_PROTO 13 #define BTF_KIND_VAR 14 #define BTF_KIND_DATASEC 15 struct btf_type { __u32 name_off; __u32 info; union { __u32 size; __u32 type; }; }; struct btf_enum { __u32 name_off; __s32 val; }; struct btf_array { __u32 type; __u32 index_type; __u32 nelems; }; struct btf_member { __u32 name_off; __u32 type; __u32 offset; }; struct btf_param { __u32 name_off; __u32 type; }; struct btf_var { __u32 linkage; }; struct btf_var_secinfo { __u32 type; __u32 offset; __u32 size; }; #define VMLINUX_MAX_SUPPORT_SIZE (10 * 1024 * 1024) static char* read_btf_vmlinux() { static bool is_read = false; static char buf[VMLINUX_MAX_SUPPORT_SIZE]; if (is_read) return buf; int fd = open("/sys/kernel/btf/vmlinux", O_RDONLY); if (fd < 0) return NULL; unsigned long bytes_read = 0; for (;;) { ssize_t ret = read(fd, buf + bytes_read, VMLINUX_MAX_SUPPORT_SIZE - bytes_read); if (ret < 0 || bytes_read + ret == VMLINUX_MAX_SUPPORT_SIZE) return NULL; if (ret == 0) break; bytes_read += ret; } is_read = true; return buf; } static long syz_btf_id_by_name(volatile long a0) { char* target = (char*)a0; char* vmlinux = read_btf_vmlinux(); if (vmlinux == NULL) return -1; struct btf_header* btf_header = (struct btf_header*)vmlinux; if (btf_header->magic != BTF_MAGIC) return -1; char* btf_type_sec = vmlinux + btf_header->hdr_len + btf_header->type_off; char* btf_str_sec = vmlinux + btf_header->hdr_len + btf_header->str_off; unsigned int bytes_parsed = 0; long idx = 1; while (bytes_parsed < btf_header->type_len) { struct btf_type* btf_type = (struct btf_type*)(btf_type_sec + bytes_parsed); uint32_t kind = BTF_INFO_KIND(btf_type->info); uint32_t vlen = BTF_INFO_VLEN(btf_type->info); char* name = btf_str_sec + btf_type->name_off; if (strcmp(name, target) == 0) return idx; size_t skip; switch (kind) { case BTF_KIND_INT: skip = sizeof(uint32_t); break; case BTF_KIND_ENUM: skip = sizeof(struct btf_enum) * vlen; break; case BTF_KIND_ARRAY: skip = sizeof(struct btf_array); break; case BTF_KIND_STRUCT: case BTF_KIND_UNION: skip = sizeof(struct btf_member) * vlen; break; case BTF_KIND_FUNC_PROTO: skip = sizeof(struct btf_param) * vlen; break; case BTF_KIND_VAR: skip = sizeof(struct btf_var); break; case BTF_KIND_DATASEC: skip = sizeof(struct btf_var_secinfo) * vlen; break; default: skip = 0; } bytes_parsed += sizeof(struct btf_type) + skip; idx++; } return -1; } static long syz_memcpy_off(volatile long a0, volatile long a1, volatile long a2, volatile long a3, volatile long a4) { char* dest = (char*)a0; uint32_t dest_off = (uint32_t)a1; char* src = (char*)a2; uint32_t src_off = (uint32_t)a3; size_t n = (size_t)a4; return (long)memcpy(dest + dest_off, src + src_off, n); } static long syz_create_resource(volatile long val) { return val; } #define MAX_FDS 30 #define USB_MAX_IFACE_NUM 4 #define USB_MAX_EP_NUM 32 #define USB_MAX_FDS 6 struct usb_endpoint_index { struct usb_endpoint_descriptor desc; int handle; }; struct usb_iface_index { struct usb_interface_descriptor* iface; uint8_t bInterfaceNumber; uint8_t bAlternateSetting; uint8_t bInterfaceClass; struct usb_endpoint_index eps[USB_MAX_EP_NUM]; int eps_num; }; struct usb_device_index { struct usb_device_descriptor* dev; struct usb_config_descriptor* config; uint8_t bDeviceClass; uint8_t bMaxPower; int config_length; struct usb_iface_index ifaces[USB_MAX_IFACE_NUM]; int ifaces_num; int iface_cur; }; struct usb_info { int fd; struct usb_device_index index; }; static struct usb_info usb_devices[USB_MAX_FDS]; static struct usb_device_index* lookup_usb_index(int fd) { for (int i = 0; i < USB_MAX_FDS; i++) { if (__atomic_load_n(&usb_devices[i].fd, __ATOMIC_ACQUIRE) == fd) return &usb_devices[i].index; } return NULL; } static int usb_devices_num; static bool parse_usb_descriptor(const char* buffer, size_t length, struct usb_device_index* index) { if (length < sizeof(*index->dev) + sizeof(*index->config)) return false; memset(index, 0, sizeof(*index)); index->dev = (struct usb_device_descriptor*)buffer; index->config = (struct usb_config_descriptor*)(buffer + sizeof(*index->dev)); index->bDeviceClass = index->dev->bDeviceClass; index->bMaxPower = index->config->bMaxPower; index->config_length = length - sizeof(*index->dev); index->iface_cur = -1; size_t offset = 0; while (true) { if (offset + 1 >= length) break; uint8_t desc_length = buffer[offset]; uint8_t desc_type = buffer[offset + 1]; if (desc_length <= 2) break; if (offset + desc_length > length) break; if (desc_type == USB_DT_INTERFACE && index->ifaces_num < USB_MAX_IFACE_NUM) { struct usb_interface_descriptor* iface = (struct usb_interface_descriptor*)(buffer + offset); index->ifaces[index->ifaces_num].iface = iface; index->ifaces[index->ifaces_num].bInterfaceNumber = iface->bInterfaceNumber; index->ifaces[index->ifaces_num].bAlternateSetting = iface->bAlternateSetting; index->ifaces[index->ifaces_num].bInterfaceClass = iface->bInterfaceClass; index->ifaces_num++; } if (desc_type == USB_DT_ENDPOINT && index->ifaces_num > 0) { struct usb_iface_index* iface = &index->ifaces[index->ifaces_num - 1]; if (iface->eps_num < USB_MAX_EP_NUM) { memcpy(&iface->eps[iface->eps_num].desc, buffer + offset, sizeof(iface->eps[iface->eps_num].desc)); iface->eps_num++; } } offset += desc_length; } return true; } static struct usb_device_index* add_usb_index(int fd, const char* dev, size_t dev_len) { int i = __atomic_fetch_add(&usb_devices_num, 1, __ATOMIC_RELAXED); if (i >= USB_MAX_FDS) return NULL; if (!parse_usb_descriptor(dev, dev_len, &usb_devices[i].index)) return NULL; __atomic_store_n(&usb_devices[i].fd, fd, __ATOMIC_RELEASE); return &usb_devices[i].index; } struct vusb_connect_string_descriptor { uint32_t len; char* str; } __attribute__((packed)); struct vusb_connect_descriptors { uint32_t qual_len; char* qual; uint32_t bos_len; char* bos; uint32_t strs_len; struct vusb_connect_string_descriptor strs[0]; } __attribute__((packed)); static const char default_string[] = { 8, USB_DT_STRING, 's', 0, 'y', 0, 'z', 0 }; static const char default_lang_id[] = { 4, USB_DT_STRING, 0x09, 0x04 }; static bool lookup_connect_response_in(int fd, const struct vusb_connect_descriptors* descs, const struct usb_ctrlrequest* ctrl, struct usb_qualifier_descriptor* qual, char** response_data, uint32_t* response_length) { struct usb_device_index* index = lookup_usb_index(fd); uint8_t str_idx; if (!index) return false; switch (ctrl->bRequestType & USB_TYPE_MASK) { case USB_TYPE_STANDARD: switch (ctrl->bRequest) { case USB_REQ_GET_DESCRIPTOR: switch (ctrl->wValue >> 8) { case USB_DT_DEVICE: *response_data = (char*)index->dev; *response_length = sizeof(*index->dev); return true; case USB_DT_CONFIG: *response_data = (char*)index->config; *response_length = index->config_length; return true; case USB_DT_STRING: str_idx = (uint8_t)ctrl->wValue; if (descs && str_idx < descs->strs_len) { *response_data = descs->strs[str_idx].str; *response_length = descs->strs[str_idx].len; return true; } if (str_idx == 0) { *response_data = (char*)&default_lang_id[0]; *response_length = default_lang_id[0]; return true; } *response_data = (char*)&default_string[0]; *response_length = default_string[0]; return true; case USB_DT_BOS: *response_data = descs->bos; *response_length = descs->bos_len; return true; case USB_DT_DEVICE_QUALIFIER: if (!descs->qual) { qual->bLength = sizeof(*qual); qual->bDescriptorType = USB_DT_DEVICE_QUALIFIER; qual->bcdUSB = index->dev->bcdUSB; qual->bDeviceClass = index->dev->bDeviceClass; qual->bDeviceSubClass = index->dev->bDeviceSubClass; qual->bDeviceProtocol = index->dev->bDeviceProtocol; qual->bMaxPacketSize0 = index->dev->bMaxPacketSize0; qual->bNumConfigurations = index->dev->bNumConfigurations; qual->bRESERVED = 0; *response_data = (char*)qual; *response_length = sizeof(*qual); return true; } *response_data = descs->qual; *response_length = descs->qual_len; return true; default: break; } break; default: break; } break; default: break; } return false; } typedef bool (*lookup_connect_out_response_t)(int fd, const struct vusb_connect_descriptors* descs, const struct usb_ctrlrequest* ctrl, bool* done); static bool lookup_connect_response_out_generic(int fd, const struct vusb_connect_descriptors* descs, const struct usb_ctrlrequest* ctrl, bool* done) { switch (ctrl->bRequestType & USB_TYPE_MASK) { case USB_TYPE_STANDARD: switch (ctrl->bRequest) { case USB_REQ_SET_CONFIGURATION: *done = true; return true; default: break; } break; } return false; } #define ATH9K_FIRMWARE_DOWNLOAD 0x30 #define ATH9K_FIRMWARE_DOWNLOAD_COMP 0x31 static bool lookup_connect_response_out_ath9k(int fd, const struct vusb_connect_descriptors* descs, const struct usb_ctrlrequest* ctrl, bool* done) { switch (ctrl->bRequestType & USB_TYPE_MASK) { case USB_TYPE_STANDARD: switch (ctrl->bRequest) { case USB_REQ_SET_CONFIGURATION: return true; default: break; } break; case USB_TYPE_VENDOR: switch (ctrl->bRequest) { case ATH9K_FIRMWARE_DOWNLOAD: return true; case ATH9K_FIRMWARE_DOWNLOAD_COMP: *done = true; return true; default: break; } break; } return false; } struct vusb_descriptor { uint8_t req_type; uint8_t desc_type; uint32_t len; char data[0]; } __attribute__((packed)); struct vusb_descriptors { uint32_t len; struct vusb_descriptor* generic; struct vusb_descriptor* descs[0]; } __attribute__((packed)); struct vusb_response { uint8_t type; uint8_t req; uint32_t len; char data[0]; } __attribute__((packed)); struct vusb_responses { uint32_t len; struct vusb_response* generic; struct vusb_response* resps[0]; } __attribute__((packed)); static bool lookup_control_response(const struct vusb_descriptors* descs, const struct vusb_responses* resps, struct usb_ctrlrequest* ctrl, char** response_data, uint32_t* response_length) { int descs_num = 0; int resps_num = 0; if (descs) descs_num = (descs->len - offsetof(struct vusb_descriptors, descs)) / sizeof(descs->descs[0]); if (resps) resps_num = (resps->len - offsetof(struct vusb_responses, resps)) / sizeof(resps->resps[0]); uint8_t req = ctrl->bRequest; uint8_t req_type = ctrl->bRequestType & USB_TYPE_MASK; uint8_t desc_type = ctrl->wValue >> 8; if (req == USB_REQ_GET_DESCRIPTOR) { int i; for (i = 0; i < descs_num; i++) { struct vusb_descriptor* desc = descs->descs[i]; if (!desc) continue; if (desc->req_type == req_type && desc->desc_type == desc_type) { *response_length = desc->len; if (*response_length != 0) *response_data = &desc->data[0]; else *response_data = NULL; return true; } } if (descs && descs->generic) { *response_data = &descs->generic->data[0]; *response_length = descs->generic->len; return true; } } else { int i; for (i = 0; i < resps_num; i++) { struct vusb_response* resp = resps->resps[i]; if (!resp) continue; if (resp->type == req_type && resp->req == req) { *response_length = resp->len; if (*response_length != 0) *response_data = &resp->data[0]; else *response_data = NULL; return true; } } if (resps && resps->generic) { *response_data = &resps->generic->data[0]; *response_length = resps->generic->len; return true; } } return false; } #define UDC_NAME_LENGTH_MAX 128 struct usb_raw_init { __u8 driver_name[UDC_NAME_LENGTH_MAX]; __u8 device_name[UDC_NAME_LENGTH_MAX]; __u8 speed; }; enum usb_raw_event_type { USB_RAW_EVENT_INVALID = 0, USB_RAW_EVENT_CONNECT = 1, USB_RAW_EVENT_CONTROL = 2, }; struct usb_raw_event { __u32 type; __u32 length; __u8 data[0]; }; struct usb_raw_ep_io { __u16 ep; __u16 flags; __u32 length; __u8 data[0]; }; #define USB_RAW_EPS_NUM_MAX 30 #define USB_RAW_EP_NAME_MAX 16 #define USB_RAW_EP_ADDR_ANY 0xff struct usb_raw_ep_caps { __u32 type_control : 1; __u32 type_iso : 1; __u32 type_bulk : 1; __u32 type_int : 1; __u32 dir_in : 1; __u32 dir_out : 1; }; struct usb_raw_ep_limits { __u16 maxpacket_limit; __u16 max_streams; __u32 reserved; }; struct usb_raw_ep_info { __u8 name[USB_RAW_EP_NAME_MAX]; __u32 addr; struct usb_raw_ep_caps caps; struct usb_raw_ep_limits limits; }; struct usb_raw_eps_info { struct usb_raw_ep_info eps[USB_RAW_EPS_NUM_MAX]; }; #define USB_RAW_IOCTL_INIT _IOW('U', 0, struct usb_raw_init) #define USB_RAW_IOCTL_RUN _IO('U', 1) #define USB_RAW_IOCTL_EVENT_FETCH _IOR('U', 2, struct usb_raw_event) #define USB_RAW_IOCTL_EP0_WRITE _IOW('U', 3, struct usb_raw_ep_io) #define USB_RAW_IOCTL_EP0_READ _IOWR('U', 4, struct usb_raw_ep_io) #define USB_RAW_IOCTL_EP_ENABLE _IOW('U', 5, struct usb_endpoint_descriptor) #define USB_RAW_IOCTL_EP_DISABLE _IOW('U', 6, __u32) #define USB_RAW_IOCTL_EP_WRITE _IOW('U', 7, struct usb_raw_ep_io) #define USB_RAW_IOCTL_EP_READ _IOWR('U', 8, struct usb_raw_ep_io) #define USB_RAW_IOCTL_CONFIGURE _IO('U', 9) #define USB_RAW_IOCTL_VBUS_DRAW _IOW('U', 10, __u32) #define USB_RAW_IOCTL_EPS_INFO _IOR('U', 11, struct usb_raw_eps_info) #define USB_RAW_IOCTL_EP0_STALL _IO('U', 12) #define USB_RAW_IOCTL_EP_SET_HALT _IOW('U', 13, __u32) #define USB_RAW_IOCTL_EP_CLEAR_HALT _IOW('U', 14, __u32) #define USB_RAW_IOCTL_EP_SET_WEDGE _IOW('U', 15, __u32) static int usb_raw_open() { return open("/dev/raw-gadget", O_RDWR); } static int usb_raw_init(int fd, uint32_t speed, const char* driver, const char* device) { struct usb_raw_init arg; strncpy((char*)&arg.driver_name[0], driver, sizeof(arg.driver_name)); strncpy((char*)&arg.device_name[0], device, sizeof(arg.device_name)); arg.speed = speed; return ioctl(fd, USB_RAW_IOCTL_INIT, &arg); } static int usb_raw_run(int fd) { return ioctl(fd, USB_RAW_IOCTL_RUN, 0); } static int usb_raw_ep_write(int fd, struct usb_raw_ep_io* io) { return ioctl(fd, USB_RAW_IOCTL_EP_WRITE, io); } static int usb_raw_ep_read(int fd, struct usb_raw_ep_io* io) { return ioctl(fd, USB_RAW_IOCTL_EP_READ, io); } static int usb_raw_configure(int fd) { return ioctl(fd, USB_RAW_IOCTL_CONFIGURE, 0); } static int usb_raw_vbus_draw(int fd, uint32_t power) { return ioctl(fd, USB_RAW_IOCTL_VBUS_DRAW, power); } static int usb_raw_ep0_write(int fd, struct usb_raw_ep_io* io) { return ioctl(fd, USB_RAW_IOCTL_EP0_WRITE, io); } static int usb_raw_ep0_read(int fd, struct usb_raw_ep_io* io) { return ioctl(fd, USB_RAW_IOCTL_EP0_READ, io); } static int usb_raw_event_fetch(int fd, struct usb_raw_event* event) { return ioctl(fd, USB_RAW_IOCTL_EVENT_FETCH, event); } static int usb_raw_ep_enable(int fd, struct usb_endpoint_descriptor* desc) { return ioctl(fd, USB_RAW_IOCTL_EP_ENABLE, desc); } static int usb_raw_ep_disable(int fd, int ep) { return ioctl(fd, USB_RAW_IOCTL_EP_DISABLE, ep); } static int usb_raw_ep0_stall(int fd) { return ioctl(fd, USB_RAW_IOCTL_EP0_STALL, 0); } static int lookup_interface(int fd, uint8_t bInterfaceNumber, uint8_t bAlternateSetting) { struct usb_device_index* index = lookup_usb_index(fd); if (!index) return -1; for (int i = 0; i < index->ifaces_num; i++) { if (index->ifaces[i].bInterfaceNumber == bInterfaceNumber && index->ifaces[i].bAlternateSetting == bAlternateSetting) return i; } return -1; } static int lookup_endpoint(int fd, uint8_t bEndpointAddress) { struct usb_device_index* index = lookup_usb_index(fd); if (!index) return -1; if (index->iface_cur < 0) return -1; for (int ep = 0; ep < index->ifaces[index->iface_cur].eps_num; ep++) if (index->ifaces[index->iface_cur].eps[ep].desc.bEndpointAddress == bEndpointAddress) return index->ifaces[index->iface_cur].eps[ep].handle; return -1; } #define USB_MAX_PACKET_SIZE 4096 struct usb_raw_control_event { struct usb_raw_event inner; struct usb_ctrlrequest ctrl; char data[USB_MAX_PACKET_SIZE]; }; struct usb_raw_ep_io_data { struct usb_raw_ep_io inner; char data[USB_MAX_PACKET_SIZE]; }; static void set_interface(int fd, int n) { struct usb_device_index* index = lookup_usb_index(fd); if (!index) return; if (index->iface_cur >= 0 && index->iface_cur < index->ifaces_num) { for (int ep = 0; ep < index->ifaces[index->iface_cur].eps_num; ep++) { int rv = usb_raw_ep_disable(fd, index->ifaces[index->iface_cur].eps[ep].handle); if (rv < 0) { } else { } } } if (n >= 0 && n < index->ifaces_num) { for (int ep = 0; ep < index->ifaces[n].eps_num; ep++) { int rv = usb_raw_ep_enable(fd, &index->ifaces[n].eps[ep].desc); if (rv < 0) { } else { index->ifaces[n].eps[ep].handle = rv; } } index->iface_cur = n; } } static int configure_device(int fd) { struct usb_device_index* index = lookup_usb_index(fd); if (!index) return -1; int rv = usb_raw_vbus_draw(fd, index->bMaxPower); if (rv < 0) { return rv; } rv = usb_raw_configure(fd); if (rv < 0) { return rv; } set_interface(fd, 0); return 0; } static volatile long syz_usb_connect_impl(uint64_t speed, uint64_t dev_len, const char* dev, const struct vusb_connect_descriptors* descs, lookup_connect_out_response_t lookup_connect_response_out) { if (!dev) { return -1; } int fd = usb_raw_open(); if (fd < 0) { return fd; } if (fd >= MAX_FDS) { close(fd); return -1; } struct usb_device_index* index = add_usb_index(fd, dev, dev_len); if (!index) { return -1; } char device[32]; sprintf(&device[0], "dummy_udc.%llu", procid); int rv = usb_raw_init(fd, speed, "dummy_udc", &device[0]); if (rv < 0) { return rv; } rv = usb_raw_run(fd); if (rv < 0) { return rv; } bool done = false; while (!done) { struct usb_raw_control_event event; event.inner.type = 0; event.inner.length = sizeof(event.ctrl); rv = usb_raw_event_fetch(fd, (struct usb_raw_event*)&event); if (rv < 0) { return rv; } if (event.inner.type != USB_RAW_EVENT_CONTROL) continue; char* response_data = NULL; uint32_t response_length = 0; struct usb_qualifier_descriptor qual; if (event.ctrl.bRequestType & USB_DIR_IN) { if (!lookup_connect_response_in(fd, descs, &event.ctrl, &qual, &response_data, &response_length)) { usb_raw_ep0_stall(fd); continue; } } else { if (!lookup_connect_response_out(fd, descs, &event.ctrl, &done)) { usb_raw_ep0_stall(fd); continue; } response_data = NULL; response_length = event.ctrl.wLength; } if ((event.ctrl.bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD && event.ctrl.bRequest == USB_REQ_SET_CONFIGURATION) { rv = configure_device(fd); if (rv < 0) { return rv; } } struct usb_raw_ep_io_data response; response.inner.ep = 0; response.inner.flags = 0; if (response_length > sizeof(response.data)) response_length = 0; if (event.ctrl.wLength < response_length) response_length = event.ctrl.wLength; response.inner.length = response_length; if (response_data) memcpy(&response.data[0], response_data, response_length); else memset(&response.data[0], 0, response_length); if (event.ctrl.bRequestType & USB_DIR_IN) { rv = usb_raw_ep0_write(fd, (struct usb_raw_ep_io*)&response); } else { rv = usb_raw_ep0_read(fd, (struct usb_raw_ep_io*)&response); } if (rv < 0) { return rv; } } sleep_ms(200); return fd; } static volatile long syz_usb_connect(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { uint64_t speed = a0; uint64_t dev_len = a1; const char* dev = (const char*)a2; const struct vusb_connect_descriptors* descs = (const struct vusb_connect_descriptors*)a3; return syz_usb_connect_impl(speed, dev_len, dev, descs, &lookup_connect_response_out_generic); } static volatile long syz_usb_connect_ath9k(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { uint64_t speed = a0; uint64_t dev_len = a1; const char* dev = (const char*)a2; const struct vusb_connect_descriptors* descs = (const struct vusb_connect_descriptors*)a3; return syz_usb_connect_impl(speed, dev_len, dev, descs, &lookup_connect_response_out_ath9k); } static volatile long syz_usb_control_io(volatile long a0, volatile long a1, volatile long a2) { int fd = a0; const struct vusb_descriptors* descs = (const struct vusb_descriptors*)a1; const struct vusb_responses* resps = (const struct vusb_responses*)a2; struct usb_raw_control_event event; event.inner.type = 0; event.inner.length = USB_MAX_PACKET_SIZE; int rv = usb_raw_event_fetch(fd, (struct usb_raw_event*)&event); if (rv < 0) { return rv; } if (event.inner.type != USB_RAW_EVENT_CONTROL) { return -1; } char* response_data = NULL; uint32_t response_length = 0; if ((event.ctrl.bRequestType & USB_DIR_IN) && event.ctrl.wLength) { if (!lookup_control_response(descs, resps, &event.ctrl, &response_data, &response_length)) { usb_raw_ep0_stall(fd); return -1; } } else { if ((event.ctrl.bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD || event.ctrl.bRequest == USB_REQ_SET_INTERFACE) { int iface_num = event.ctrl.wIndex; int alt_set = event.ctrl.wValue; int iface_index = lookup_interface(fd, iface_num, alt_set); if (iface_index < 0) { } else { set_interface(fd, iface_index); } } response_length = event.ctrl.wLength; } struct usb_raw_ep_io_data response; response.inner.ep = 0; response.inner.flags = 0; if (response_length > sizeof(response.data)) response_length = 0; if (event.ctrl.wLength < response_length) response_length = event.ctrl.wLength; if ((event.ctrl.bRequestType & USB_DIR_IN) && !event.ctrl.wLength) { response_length = USB_MAX_PACKET_SIZE; } response.inner.length = response_length; if (response_data) memcpy(&response.data[0], response_data, response_length); else memset(&response.data[0], 0, response_length); if ((event.ctrl.bRequestType & USB_DIR_IN) && event.ctrl.wLength) { rv = usb_raw_ep0_write(fd, (struct usb_raw_ep_io*)&response); } else { rv = usb_raw_ep0_read(fd, (struct usb_raw_ep_io*)&response); } if (rv < 0) { return rv; } sleep_ms(200); return 0; } static volatile long syz_usb_ep_write(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { int fd = a0; uint8_t ep = a1; uint32_t len = a2; char* data = (char*)a3; int ep_handle = lookup_endpoint(fd, ep); if (ep_handle < 0) { return -1; } struct usb_raw_ep_io_data io_data; io_data.inner.ep = ep_handle; io_data.inner.flags = 0; if (len > sizeof(io_data.data)) len = sizeof(io_data.data); io_data.inner.length = len; memcpy(&io_data.data[0], data, len); int rv = usb_raw_ep_write(fd, (struct usb_raw_ep_io*)&io_data); if (rv < 0) { return rv; } sleep_ms(200); return 0; } static volatile long syz_usb_ep_read(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { int fd = a0; uint8_t ep = a1; uint32_t len = a2; char* data = (char*)a3; int ep_handle = lookup_endpoint(fd, ep); if (ep_handle < 0) { return -1; } struct usb_raw_ep_io_data io_data; io_data.inner.ep = ep_handle; io_data.inner.flags = 0; if (len > sizeof(io_data.data)) len = sizeof(io_data.data); io_data.inner.length = len; int rv = usb_raw_ep_read(fd, (struct usb_raw_ep_io*)&io_data); if (rv < 0) { return rv; } memcpy(&data[0], &io_data.data[0], io_data.inner.length); sleep_ms(200); return 0; } static volatile long syz_usb_disconnect(volatile long a0) { int fd = a0; int rv = close(fd); sleep_ms(200); return rv; } static long syz_open_dev(volatile long a0, volatile long a1, volatile long a2) { if (a0 == 0xc || a0 == 0xb) { char buf[128]; sprintf(buf, "/dev/%s/%d:%d", a0 == 0xc ? "char" : "block", (uint8_t)a1, (uint8_t)a2); return open(buf, O_RDWR, 0); } else { unsigned long nb = a1; char buf[1024]; char* hash; strncpy(buf, (char*)a0, sizeof(buf) - 1); buf[sizeof(buf) - 1] = 0; while ((hash = strchr(buf, '#'))) { *hash = '0' + (char)(nb % 10); nb /= 10; } return open(buf, a2 & ~O_CREAT, 0); } } static long syz_open_procfs(volatile long a0, volatile long a1) { char buf[128]; memset(buf, 0, sizeof(buf)); if (a0 == 0) { snprintf(buf, sizeof(buf), "/proc/self/%s", (char*)a1); } else if (a0 == -1) { snprintf(buf, sizeof(buf), "/proc/thread-self/%s", (char*)a1); } else { snprintf(buf, sizeof(buf), "/proc/self/task/%d/%s", (int)a0, (char*)a1); } int fd = open(buf, O_RDWR); if (fd == -1) fd = open(buf, O_RDONLY); return fd; } static long syz_open_pts(volatile long a0, volatile long a1) { int ptyno = 0; if (ioctl(a0, TIOCGPTN, &ptyno)) return -1; char buf[128]; sprintf(buf, "/dev/pts/%d", ptyno); return open(buf, a1, 0); } static long syz_init_net_socket(volatile long domain, volatile long type, volatile long proto) { int netns = open("/proc/self/ns/net", O_RDONLY); if (netns == -1) return netns; if (setns(kInitNetNsFd, 0)) return -1; int sock = syscall(__NR_socket, domain, type, proto); int err = errno; if (setns(netns, 0)) { exit(1); } close(netns); errno = err; return sock; } static long syz_socket_connect_nvme_tcp() { struct sockaddr_in nvme_local_address; int netns = open("/proc/self/ns/net", O_RDONLY); if (netns == -1) return netns; if (setns(kInitNetNsFd, 0)) return -1; int sock = syscall(__NR_socket, AF_INET, SOCK_STREAM, 0x0); int err = errno; if (setns(netns, 0)) { exit(1); } close(netns); errno = err; nvme_local_address.sin_family = AF_INET; nvme_local_address.sin_port = htobe16(4420); nvme_local_address.sin_addr.s_addr = htobe32(0x7f000001); err = syscall(__NR_connect, sock, &nvme_local_address, sizeof(nvme_local_address)); if (err != 0) { close(sock); return -1; } return sock; } static long syz_genetlink_get_family_id(volatile long name, volatile long sock_arg) { int fd = sock_arg; if (fd < 0) { fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC); if (fd == -1) { return -1; } } struct nlmsg nlmsg_tmp; int ret = netlink_query_family_id(&nlmsg_tmp, fd, (char*)name, false); if ((int)sock_arg < 0) close(fd); if (ret < 0) { return -1; } return ret; } //% This code is derived from puff.{c,h}, found in the zlib development. The //% original files come with the following copyright notice: //% Copyright (C) 2002-2013 Mark Adler, all rights reserved //% version 2.3, 21 Jan 2013 //% This software is provided 'as-is', without any express or implied //% warranty. In no event will the author be held liable for any damages //% arising from the use of this software. //% Permission is granted to anyone to use this software for any purpose, //% including commercial applications, and to alter it and redistribute it //% freely, subject to the following restrictions: //% 1. The origin of this software must not be misrepresented; you must not //% claim that you wrote the original software. If you use this software //% in a product, an acknowledgment in the product documentation would be //% appreciated but is not required. //% 2. Altered source versions must be plainly marked as such, and must not be //% misrepresented as being the original software. //% 3. This notice may not be removed or altered from any source distribution. //% Mark Adler madler@alumni.caltech.edu //% BEGIN CODE DERIVED FROM puff.{c,h} #define MAXBITS 15 #define MAXLCODES 286 #define MAXDCODES 30 #define MAXCODES (MAXLCODES + MAXDCODES) #define FIXLCODES 288 struct puff_state { unsigned char* out; unsigned long outlen; unsigned long outcnt; const unsigned char* in; unsigned long inlen; unsigned long incnt; int bitbuf; int bitcnt; jmp_buf env; }; static int puff_bits(struct puff_state* s, int need) { long val = s->bitbuf; while (s->bitcnt < need) { if (s->incnt == s->inlen) longjmp(s->env, 1); val |= (long)(s->in[s->incnt++]) << s->bitcnt; s->bitcnt += 8; } s->bitbuf = (int)(val >> need); s->bitcnt -= need; return (int)(val & ((1L << need) - 1)); } static int puff_stored(struct puff_state* s) { s->bitbuf = 0; s->bitcnt = 0; if (s->incnt + 4 > s->inlen) return 2; unsigned len = s->in[s->incnt++]; len |= s->in[s->incnt++] << 8; if (s->in[s->incnt++] != (~len & 0xff) || s->in[s->incnt++] != ((~len >> 8) & 0xff)) return -2; if (s->incnt + len > s->inlen) return 2; if (s->outcnt + len > s->outlen) return 1; for (; len--; s->outcnt++, s->incnt++) { if (s->in[s->incnt]) s->out[s->outcnt] = s->in[s->incnt]; } return 0; } struct puff_huffman { short* count; short* symbol; }; static int puff_decode(struct puff_state* s, const struct puff_huffman* h) { int first = 0; int index = 0; int bitbuf = s->bitbuf; int left = s->bitcnt; int code = first = index = 0; int len = 1; short* next = h->count + 1; while (1) { while (left--) { code |= bitbuf & 1; bitbuf >>= 1; int count = *next++; if (code - count < first) { s->bitbuf = bitbuf; s->bitcnt = (s->bitcnt - len) & 7; return h->symbol[index + (code - first)]; } index += count; first += count; first <<= 1; code <<= 1; len++; } left = (MAXBITS + 1) - len; if (left == 0) break; if (s->incnt == s->inlen) longjmp(s->env, 1); bitbuf = s->in[s->incnt++]; if (left > 8) left = 8; } return -10; } static int puff_construct(struct puff_huffman* h, const short* length, int n) { int len; for (len = 0; len <= MAXBITS; len++) h->count[len] = 0; int symbol; for (symbol = 0; symbol < n; symbol++) (h->count[length[symbol]])++; if (h->count[0] == n) return 0; int left = 1; for (len = 1; len <= MAXBITS; len++) { left <<= 1; left -= h->count[len]; if (left < 0) return left; } short offs[MAXBITS + 1]; offs[1] = 0; for (len = 1; len < MAXBITS; len++) offs[len + 1] = offs[len] + h->count[len]; for (symbol = 0; symbol < n; symbol++) if (length[symbol] != 0) h->symbol[offs[length[symbol]]++] = symbol; return left; } static int puff_codes(struct puff_state* s, const struct puff_huffman* lencode, const struct puff_huffman* distcode) { static const short lens[29] = { 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31, 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258}; static const short lext[29] = { 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0}; static const short dists[30] = { 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193, 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145, 8193, 12289, 16385, 24577}; static const short dext[30] = { 0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13}; int symbol; do { symbol = puff_decode(s, lencode); if (symbol < 0) return symbol; if (symbol < 256) { if (s->outcnt == s->outlen) return 1; if (symbol) s->out[s->outcnt] = symbol; s->outcnt++; } else if (symbol > 256) { symbol -= 257; if (symbol >= 29) return -10; int len = lens[symbol] + puff_bits(s, lext[symbol]); symbol = puff_decode(s, distcode); if (symbol < 0) return symbol; unsigned dist = dists[symbol] + puff_bits(s, dext[symbol]); if (dist > s->outcnt) return -11; if (s->outcnt + len > s->outlen) return 1; while (len--) { if (dist <= s->outcnt && s->out[s->outcnt - dist]) s->out[s->outcnt] = s->out[s->outcnt - dist]; s->outcnt++; } } } while (symbol != 256); return 0; } static int puff_fixed(struct puff_state* s) { static int virgin = 1; static short lencnt[MAXBITS + 1], lensym[FIXLCODES]; static short distcnt[MAXBITS + 1], distsym[MAXDCODES]; static struct puff_huffman lencode, distcode; if (virgin) { lencode.count = lencnt; lencode.symbol = lensym; distcode.count = distcnt; distcode.symbol = distsym; short lengths[FIXLCODES]; int symbol; for (symbol = 0; symbol < 144; symbol++) lengths[symbol] = 8; for (; symbol < 256; symbol++) lengths[symbol] = 9; for (; symbol < 280; symbol++) lengths[symbol] = 7; for (; symbol < FIXLCODES; symbol++) lengths[symbol] = 8; puff_construct(&lencode, lengths, FIXLCODES); for (symbol = 0; symbol < MAXDCODES; symbol++) lengths[symbol] = 5; puff_construct(&distcode, lengths, MAXDCODES); virgin = 0; } return puff_codes(s, &lencode, &distcode); } static int puff_dynamic(struct puff_state* s) { static const short order[19] = {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15}; int nlen = puff_bits(s, 5) + 257; int ndist = puff_bits(s, 5) + 1; int ncode = puff_bits(s, 4) + 4; if (nlen > MAXLCODES || ndist > MAXDCODES) return -3; short lengths[MAXCODES]; int index; for (index = 0; index < ncode; index++) lengths[order[index]] = puff_bits(s, 3); for (; index < 19; index++) lengths[order[index]] = 0; short lencnt[MAXBITS + 1], lensym[MAXLCODES]; struct puff_huffman lencode = {lencnt, lensym}; int err = puff_construct(&lencode, lengths, 19); if (err != 0) return -4; index = 0; while (index < nlen + ndist) { int symbol; int len; symbol = puff_decode(s, &lencode); if (symbol < 0) return symbol; if (symbol < 16) lengths[index++] = symbol; else { len = 0; if (symbol == 16) { if (index == 0) return -5; len = lengths[index - 1]; symbol = 3 + puff_bits(s, 2); } else if (symbol == 17) symbol = 3 + puff_bits(s, 3); else symbol = 11 + puff_bits(s, 7); if (index + symbol > nlen + ndist) return -6; while (symbol--) lengths[index++] = len; } } if (lengths[256] == 0) return -9; err = puff_construct(&lencode, lengths, nlen); if (err && (err < 0 || nlen != lencode.count[0] + lencode.count[1])) return -7; short distcnt[MAXBITS + 1], distsym[MAXDCODES]; struct puff_huffman distcode = {distcnt, distsym}; err = puff_construct(&distcode, lengths + nlen, ndist); if (err && (err < 0 || ndist != distcode.count[0] + distcode.count[1])) return -8; return puff_codes(s, &lencode, &distcode); } static int puff( unsigned char* dest, unsigned long* destlen, const unsigned char* source, unsigned long sourcelen) { struct puff_state s = { .out = dest, .outlen = *destlen, .outcnt = 0, .in = source, .inlen = sourcelen, .incnt = 0, .bitbuf = 0, .bitcnt = 0, }; int err; if (setjmp(s.env) != 0) err = 2; else { int last; do { last = puff_bits(&s, 1); int type = puff_bits(&s, 2); err = type == 0 ? puff_stored(&s) : (type == 1 ? puff_fixed(&s) : (type == 2 ? puff_dynamic(&s) : -1)); if (err != 0) break; } while (!last); } *destlen = s.outcnt; return err; } //% END CODE DERIVED FROM puff.{c,h} #define ZLIB_HEADER_WIDTH 2 static int puff_zlib_to_file(const unsigned char* source, unsigned long sourcelen, int dest_fd) { if (sourcelen < ZLIB_HEADER_WIDTH) return 0; source += ZLIB_HEADER_WIDTH; sourcelen -= ZLIB_HEADER_WIDTH; const unsigned long max_destlen = 132 << 20; void* ret = mmap(0, max_destlen, PROT_WRITE | PROT_READ, MAP_PRIVATE | MAP_ANON, -1, 0); if (ret == MAP_FAILED) return -1; unsigned char* dest = (unsigned char*)ret; unsigned long destlen = max_destlen; int err = puff(dest, &destlen, source, sourcelen); if (err) { munmap(dest, max_destlen); errno = -err; return -1; } if (write(dest_fd, dest, destlen) != (ssize_t)destlen) { munmap(dest, max_destlen); return -1; } return munmap(dest, max_destlen); } static int setup_loop_device(unsigned char* data, unsigned long size, const char* loopname, int* loopfd_p) { int err = 0, loopfd = -1; int memfd = syscall(__NR_memfd_create, "syzkaller", 0); if (memfd == -1) { err = errno; goto error; } if (puff_zlib_to_file(data, size, memfd)) { err = errno; goto error_close_memfd; } loopfd = open(loopname, O_RDWR); if (loopfd == -1) { err = errno; goto error_close_memfd; } if (ioctl(loopfd, LOOP_SET_FD, memfd)) { if (errno != EBUSY) { err = errno; goto error_close_loop; } ioctl(loopfd, LOOP_CLR_FD, 0); usleep(1000); if (ioctl(loopfd, LOOP_SET_FD, memfd)) { err = errno; goto error_close_loop; } } close(memfd); *loopfd_p = loopfd; return 0; error_close_loop: close(loopfd); error_close_memfd: close(memfd); error: errno = err; return -1; } static void reset_loop_device(const char* loopname) { int loopfd = open(loopname, O_RDWR); if (loopfd == -1) { return; } if (ioctl(loopfd, LOOP_CLR_FD, 0)) { } close(loopfd); } static long syz_mount_image( volatile long fsarg, volatile long dir, volatile long flags, volatile long optsarg, volatile long change_dir, volatile unsigned long size, volatile long image) { unsigned char* data = (unsigned char*)image; int res = -1, err = 0, need_loop_device = !!size; char* mount_opts = (char*)optsarg; char* target = (char*)dir; char* fs = (char*)fsarg; char* source = NULL; char loopname[64]; if (need_loop_device) { int loopfd; memset(loopname, 0, sizeof(loopname)); snprintf(loopname, sizeof(loopname), "/dev/loop%llu", procid); if (setup_loop_device(data, size, loopname, &loopfd) == -1) return -1; close(loopfd); source = loopname; } mkdir(target, 0777); char opts[256]; memset(opts, 0, sizeof(opts)); if (strlen(mount_opts) > (sizeof(opts) - 32)) { } strncpy(opts, mount_opts, sizeof(opts) - 32); if (strcmp(fs, "iso9660") == 0) { flags |= MS_RDONLY; } else if (strncmp(fs, "ext", 3) == 0) { bool has_remount_ro = false; char* remount_ro_start = strstr(opts, "errors=remount-ro"); if (remount_ro_start != NULL) { char after = *(remount_ro_start + strlen("errors=remount-ro")); char before = remount_ro_start == opts ? '\0' : *(remount_ro_start - 1); has_remount_ro = ((before == '\0' || before == ',') && (after == '\0' || after == ',')); } if (strstr(opts, "errors=panic") || !has_remount_ro) strcat(opts, ",errors=continue"); } else if (strcmp(fs, "xfs") == 0) { strcat(opts, ",nouuid"); } else if (strncmp(fs, "gfs2", 4) == 0 && (strstr(opts, "errors=panic") || strstr(opts, "debug"))) { strcat(opts, ",errors=withdraw"); } res = mount(source, target, fs, flags, opts); if (res == -1) { err = errno; goto error_clear_loop; } res = open(target, O_RDONLY | O_DIRECTORY); if (res == -1) { err = errno; goto error_clear_loop; } if (change_dir) { res = chdir(target); if (res == -1) { err = errno; } } error_clear_loop: if (need_loop_device) reset_loop_device(loopname); errno = err; return res; } #define noinline __attribute__((noinline)) #define __no_stack_protector #define __addrspace_guest #define __optnone #define GUEST_CODE __attribute__((section("guest"))) __no_stack_protector __addrspace_guest extern char *__start_guest, *__stop_guest; #define X86_ADDR_TEXT 0x0000 #define X86_ADDR_PD_IOAPIC 0x0000 #define X86_ADDR_GDT 0x1000 #define X86_ADDR_LDT 0x1800 #define X86_ADDR_PML4 0x2000 #define X86_ADDR_PDP 0x3000 #define X86_ADDR_PD 0x4000 #define X86_ADDR_STACK0 0x0f80 #define X86_ADDR_VAR_HLT 0x2800 #define X86_ADDR_VAR_SYSRET 0x2808 #define X86_ADDR_VAR_SYSEXIT 0x2810 #define X86_ADDR_VAR_IDT 0x3800 #define X86_ADDR_VAR_TSS64 0x3a00 #define X86_ADDR_VAR_TSS64_CPL3 0x3c00 #define X86_ADDR_VAR_TSS16 0x3d00 #define X86_ADDR_VAR_TSS16_2 0x3e00 #define X86_ADDR_VAR_TSS16_CPL3 0x3f00 #define X86_ADDR_VAR_TSS32 0x4800 #define X86_ADDR_VAR_TSS32_2 0x4a00 #define X86_ADDR_VAR_TSS32_CPL3 0x4c00 #define X86_ADDR_VAR_TSS32_VM86 0x4e00 #define X86_ADDR_VAR_VMXON_PTR 0x5f00 #define X86_ADDR_VAR_VMCS_PTR 0x5f08 #define X86_ADDR_VAR_VMEXIT_PTR 0x5f10 #define X86_ADDR_VAR_VMWRITE_FLD 0x5f18 #define X86_ADDR_VAR_VMWRITE_VAL 0x5f20 #define X86_ADDR_VAR_VMXON 0x6000 #define X86_ADDR_VAR_VMCS 0x7000 #define X86_ADDR_VAR_VMEXIT_CODE 0x9000 #define X86_ADDR_VAR_USER_CODE 0x9100 #define X86_ADDR_VAR_USER_CODE2 0x9120 #define X86_SYZOS_ADDR_ZERO 0x0 #define X86_SYZOS_ADDR_GDT 0x1000 #define X86_SYZOS_ADDR_PML4 0x2000 #define X86_SYZOS_ADDR_PDP 0x3000 #define X86_SYZOS_ADDR_PT_POOL 0x5000 #define X86_SYZOS_ADDR_VAR_IDT 0x25000 #define X86_SYZOS_ADDR_VAR_TSS 0x26000 #define X86_SYZOS_ADDR_SMRAM 0x30000 #define X86_SYZOS_ADDR_EXIT 0x40000 #define X86_SYZOS_ADDR_UEXIT (X86_SYZOS_ADDR_EXIT + 256) #define X86_SYZOS_ADDR_DIRTY_PAGES 0x41000 #define X86_SYZOS_ADDR_USER_CODE 0x50000 #define SYZOS_ADDR_EXECUTOR_CODE 0x54000 #define X86_SYZOS_ADDR_SCRATCH_CODE 0x58000 #define X86_SYZOS_ADDR_STACK_BOTTOM 0x60000 #define X86_SYZOS_ADDR_STACK0 0x60f80 #define X86_SYZOS_PER_VCPU_REGIONS_BASE 0x70000 #define X86_SYZOS_L1_VCPU_REGION_SIZE 0x40000 #define X86_SYZOS_L1_VCPU_OFFSET_VM_ARCH_SPECIFIC 0x0000 #define X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA 0x1000 #define X86_SYZOS_L2_VM_REGION_SIZE 0x8000 #define X86_SYZOS_L2_VM_OFFSET_VMCS_VMCB 0x0000 #define X86_SYZOS_L2_VM_OFFSET_VM_STACK 0x1000 #define X86_SYZOS_L2_VM_OFFSET_VM_CODE 0x2000 #define X86_SYZOS_L2_VM_OFFSET_VM_PGTABLE 0x3000 #define X86_SYZOS_L2_VM_OFFSET_MSR_BITMAP 0x7000 #define X86_SYZOS_ADDR_UNUSED 0x200000 #define X86_SYZOS_ADDR_IOAPIC 0xfec00000 #define X86_SYZOS_ADDR_VMCS_VMCB(cpu,vm) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA + (vm) * X86_SYZOS_L2_VM_REGION_SIZE + X86_SYZOS_L2_VM_OFFSET_VMCS_VMCB) #define X86_SYZOS_ADDR_VM_CODE(cpu,vm) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA + (vm) * X86_SYZOS_L2_VM_REGION_SIZE + X86_SYZOS_L2_VM_OFFSET_VM_CODE) #define X86_SYZOS_ADDR_VM_STACK(cpu,vm) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA + (vm) * X86_SYZOS_L2_VM_REGION_SIZE + X86_SYZOS_L2_VM_OFFSET_VM_STACK) #define X86_SYZOS_ADDR_VM_PGTABLE(cpu,vm) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA + (vm) * X86_SYZOS_L2_VM_REGION_SIZE + X86_SYZOS_L2_VM_OFFSET_VM_PGTABLE) #define X86_SYZOS_ADDR_MSR_BITMAP(cpu,vm) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA + (vm) * X86_SYZOS_L2_VM_REGION_SIZE + X86_SYZOS_L2_VM_OFFSET_MSR_BITMAP) #define X86_SYZOS_ADDR_VM_ARCH_SPECIFIC(cpu) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_VM_ARCH_SPECIFIC) #define X86_SYZOS_SEL_CODE 0x8 #define X86_SYZOS_SEL_DATA 0x10 #define X86_SYZOS_SEL_TSS64 0x18 #define X86_CR0_PE 1ULL #define X86_CR0_MP (1ULL << 1) #define X86_CR0_EM (1ULL << 2) #define X86_CR0_TS (1ULL << 3) #define X86_CR0_ET (1ULL << 4) #define X86_CR0_NE (1ULL << 5) #define X86_CR0_WP (1ULL << 16) #define X86_CR0_AM (1ULL << 18) #define X86_CR0_NW (1ULL << 29) #define X86_CR0_CD (1ULL << 30) #define X86_CR0_PG (1ULL << 31) #define X86_CR4_VME 1ULL #define X86_CR4_PVI (1ULL << 1) #define X86_CR4_TSD (1ULL << 2) #define X86_CR4_DE (1ULL << 3) #define X86_CR4_PSE (1ULL << 4) #define X86_CR4_PAE (1ULL << 5) #define X86_CR4_MCE (1ULL << 6) #define X86_CR4_PGE (1ULL << 7) #define X86_CR4_PCE (1ULL << 8) #define X86_CR4_OSFXSR (1ULL << 8) #define X86_CR4_OSXMMEXCPT (1ULL << 10) #define X86_CR4_UMIP (1ULL << 11) #define X86_CR4_VMXE (1ULL << 13) #define X86_CR4_SMXE (1ULL << 14) #define X86_CR4_FSGSBASE (1ULL << 16) #define X86_CR4_PCIDE (1ULL << 17) #define X86_CR4_OSXSAVE (1ULL << 18) #define X86_CR4_SMEP (1ULL << 20) #define X86_CR4_SMAP (1ULL << 21) #define X86_CR4_PKE (1ULL << 22) #define X86_EFER_SCE 1ULL #define X86_EFER_LME (1ULL << 8) #define X86_EFER_LMA (1ULL << 10) #define X86_EFER_NXE (1ULL << 11) #define X86_EFER_SVME (1ULL << 12) #define X86_EFER_LMSLE (1ULL << 13) #define X86_EFER_FFXSR (1ULL << 14) #define X86_EFER_TCE (1ULL << 15) #define X86_PDE32_PRESENT 1UL #define X86_PDE32_RW (1UL << 1) #define X86_PDE32_USER (1UL << 2) #define X86_PDE32_PS (1UL << 7) #define X86_PDE64_PRESENT 1 #define X86_PDE64_RW (1ULL << 1) #define X86_PDE64_USER (1ULL << 2) #define X86_PDE64_ACCESSED (1ULL << 5) #define X86_PDE64_DIRTY (1ULL << 6) #define X86_PDE64_PS (1ULL << 7) #define X86_PDE64_G (1ULL << 8) #define EPT_MEMTYPE_WB (6ULL << 3) #define EPT_ACCESSED (1ULL << 8) #define EPT_DIRTY (1ULL << 9) #define X86_SEL_LDT (1 << 3) #define X86_SEL_CS16 (2 << 3) #define X86_SEL_DS16 (3 << 3) #define X86_SEL_CS16_CPL3 ((4 << 3) + 3) #define X86_SEL_DS16_CPL3 ((5 << 3) + 3) #define X86_SEL_CS32 (6 << 3) #define X86_SEL_DS32 (7 << 3) #define X86_SEL_CS32_CPL3 ((8 << 3) + 3) #define X86_SEL_DS32_CPL3 ((9 << 3) + 3) #define X86_SEL_CS64 (10 << 3) #define X86_SEL_DS64 (11 << 3) #define X86_SEL_CS64_CPL3 ((12 << 3) + 3) #define X86_SEL_DS64_CPL3 ((13 << 3) + 3) #define X86_SEL_CGATE16 (14 << 3) #define X86_SEL_TGATE16 (15 << 3) #define X86_SEL_CGATE32 (16 << 3) #define X86_SEL_TGATE32 (17 << 3) #define X86_SEL_CGATE64 (18 << 3) #define X86_SEL_CGATE64_HI (19 << 3) #define X86_SEL_TSS16 (20 << 3) #define X86_SEL_TSS16_2 (21 << 3) #define X86_SEL_TSS16_CPL3 ((22 << 3) + 3) #define X86_SEL_TSS32 (23 << 3) #define X86_SEL_TSS32_2 (24 << 3) #define X86_SEL_TSS32_CPL3 ((25 << 3) + 3) #define X86_SEL_TSS32_VM86 (26 << 3) #define X86_SEL_TSS64 (27 << 3) #define X86_SEL_TSS64_HI (28 << 3) #define X86_SEL_TSS64_CPL3 ((29 << 3) + 3) #define X86_SEL_TSS64_CPL3_HI (30 << 3) #define X86_MSR_IA32_FEATURE_CONTROL 0x3a #define X86_MSR_IA32_VMX_BASIC 0x480 #define X86_MSR_IA32_SMBASE 0x9e #define X86_MSR_IA32_SYSENTER_CS 0x174 #define X86_MSR_IA32_SYSENTER_ESP 0x175 #define X86_MSR_IA32_SYSENTER_EIP 0x176 #define X86_MSR_IA32_CR_PAT 0x277 #define X86_MSR_CORE_PERF_GLOBAL_CTRL 0x38f #define X86_MSR_IA32_VMX_TRUE_PINBASED_CTLS 0x48d #define X86_MSR_IA32_VMX_TRUE_PROCBASED_CTLS 0x48e #define X86_MSR_IA32_VMX_TRUE_EXIT_CTLS 0x48f #define X86_MSR_IA32_VMX_TRUE_ENTRY_CTLS 0x490 #define X86_MSR_IA32_EFER 0xc0000080 #define X86_MSR_IA32_STAR 0xC0000081 #define X86_MSR_IA32_LSTAR 0xC0000082 #define X86_MSR_FS_BASE 0xc0000100 #define X86_MSR_GS_BASE 0xc0000101 #define X86_MSR_VM_HSAVE_PA 0xc0010117 #define X86_MSR_IA32_VMX_PROCBASED_CTLS2 0x48B #define RFLAGS_1_BIT (1ULL << 1) #define CPU_BASED_HLT_EXITING (1U << 7) #define CPU_BASED_RDTSC_EXITING (1U << 12) #define AR_TSS_AVAILABLE 0x0089 #define SVM_ATTR_LDTR_UNUSABLE 0x0000 #define VMX_AR_TSS_BUSY 0x008b #define VMX_AR_TSS_AVAILABLE 0x0089 #define VMX_AR_LDTR_UNUSABLE 0x10000 #define VM_ENTRY_IA32E_MODE (1U << 9) #define SECONDARY_EXEC_ENABLE_EPT (1U << 1) #define SECONDARY_EXEC_ENABLE_RDTSCP (1U << 3) #define VM_EXIT_HOST_ADDR_SPACE_SIZE (1U << 9) #define CPU_BASED_ACTIVATE_SECONDARY_CONTROLS (1U << 31) #define VMX_ACCESS_RIGHTS_P (1 << 7) #define VMX_ACCESS_RIGHTS_S (1 << 4) #define VMX_ACCESS_RIGHTS_TYPE_A (1 << 0) #define VMX_ACCESS_RIGHTS_TYPE_RW (1 << 1) #define VMX_ACCESS_RIGHTS_TYPE_E (1 << 3) #define VMX_ACCESS_RIGHTS_G (1 << 15) #define VMX_ACCESS_RIGHTS_DB (1 << 14) #define VMX_ACCESS_RIGHTS_L (1 << 13) #define VMX_AR_64BIT_DATA_STACK (VMX_ACCESS_RIGHTS_P | VMX_ACCESS_RIGHTS_S | VMX_ACCESS_RIGHTS_TYPE_RW | VMX_ACCESS_RIGHTS_TYPE_A | VMX_ACCESS_RIGHTS_G | VMX_ACCESS_RIGHTS_DB) #define VMX_AR_64BIT_CODE (VMX_ACCESS_RIGHTS_P | VMX_ACCESS_RIGHTS_S | VMX_ACCESS_RIGHTS_TYPE_E | VMX_ACCESS_RIGHTS_TYPE_RW | VMX_ACCESS_RIGHTS_TYPE_A | VMX_ACCESS_RIGHTS_G | VMX_ACCESS_RIGHTS_L) #define VMCS_VIRTUAL_PROCESSOR_ID 0x00000000 #define VMCS_POSTED_INTR_NV 0x00000002 #define VMCS_MSR_BITMAP 0x00002004 #define VMCS_VMREAD_BITMAP 0x00002006 #define VMCS_VMWRITE_BITMAP 0x00002008 #define VMCS_EPT_POINTER 0x0000201a #define VMCS_LINK_POINTER 0x00002800 #define VMCS_PIN_BASED_VM_EXEC_CONTROL 0x00004000 #define VMCS_CPU_BASED_VM_EXEC_CONTROL 0x00004002 #define VMCS_EXCEPTION_BITMAP 0x00004004 #define VMCS_PAGE_FAULT_ERROR_CODE_MASK 0x00004006 #define VMCS_PAGE_FAULT_ERROR_CODE_MATCH 0x00004008 #define VMCS_CR3_TARGET_COUNT 0x0000400a #define VMCS_VM_EXIT_CONTROLS 0x0000400c #define VMCS_VM_EXIT_MSR_STORE_COUNT 0x0000400e #define VMCS_VM_EXIT_MSR_LOAD_COUNT 0x00004010 #define VMCS_VM_ENTRY_CONTROLS 0x00004012 #define VMCS_VM_ENTRY_MSR_LOAD_COUNT 0x00004014 #define VMCS_VM_ENTRY_INTR_INFO_FIELD 0x00004016 #define VMCS_TPR_THRESHOLD 0x0000401c #define VMCS_SECONDARY_VM_EXEC_CONTROL 0x0000401e #define VMCS_VM_INSTRUCTION_ERROR 0x00004400 #define VMCS_VM_EXIT_REASON 0x00004402 #define VMCS_VMX_PREEMPTION_TIMER_VALUE 0x0000482e #define VMCS_CR0_GUEST_HOST_MASK 0x00006000 #define VMCS_CR4_GUEST_HOST_MASK 0x00006002 #define VMCS_CR0_READ_SHADOW 0x00006004 #define VMCS_CR4_READ_SHADOW 0x00006006 #define VMCS_HOST_ES_SELECTOR 0x00000c00 #define VMCS_HOST_CS_SELECTOR 0x00000c02 #define VMCS_HOST_SS_SELECTOR 0x00000c04 #define VMCS_HOST_DS_SELECTOR 0x00000c06 #define VMCS_HOST_FS_SELECTOR 0x00000c08 #define VMCS_HOST_GS_SELECTOR 0x00000c0a #define VMCS_HOST_TR_SELECTOR 0x00000c0c #define VMCS_HOST_IA32_PAT 0x00002c00 #define VMCS_HOST_IA32_EFER 0x00002c02 #define VMCS_HOST_IA32_PERF_GLOBAL_CTRL 0x00002c04 #define VMCS_HOST_IA32_SYSENTER_CS 0x00004c00 #define VMCS_HOST_CR0 0x00006c00 #define VMCS_HOST_CR3 0x00006c02 #define VMCS_HOST_CR4 0x00006c04 #define VMCS_HOST_FS_BASE 0x00006c06 #define VMCS_HOST_GS_BASE 0x00006c08 #define VMCS_HOST_TR_BASE 0x00006c0a #define VMCS_HOST_GDTR_BASE 0x00006c0c #define VMCS_HOST_IDTR_BASE 0x00006c0e #define VMCS_HOST_IA32_SYSENTER_ESP 0x00006c10 #define VMCS_HOST_IA32_SYSENTER_EIP 0x00006c12 #define VMCS_HOST_RSP 0x00006c14 #define VMCS_HOST_RIP 0x00006c16 #define VMCS_GUEST_INTR_STATUS 0x00000810 #define VMCS_GUEST_PML_INDEX 0x00000812 #define VMCS_GUEST_IA32_DEBUGCTL 0x00002802 #define VMCS_GUEST_IA32_PAT 0x00002804 #define VMCS_GUEST_IA32_EFER 0x00002806 #define VMCS_GUEST_IA32_PERF_GLOBAL_CTRL 0x00002808 #define VMCS_GUEST_ES_SELECTOR 0x00000800 #define VMCS_GUEST_CS_SELECTOR 0x00000802 #define VMCS_GUEST_SS_SELECTOR 0x00000804 #define VMCS_GUEST_DS_SELECTOR 0x00000806 #define VMCS_GUEST_FS_SELECTOR 0x00000808 #define VMCS_GUEST_GS_SELECTOR 0x0000080a #define VMCS_GUEST_LDTR_SELECTOR 0x0000080c #define VMCS_GUEST_TR_SELECTOR 0x0000080e #define VMCS_GUEST_ES_LIMIT 0x00004800 #define VMCS_GUEST_CS_LIMIT 0x00004802 #define VMCS_GUEST_SS_LIMIT 0x00004804 #define VMCS_GUEST_DS_LIMIT 0x00004806 #define VMCS_GUEST_FS_LIMIT 0x00004808 #define VMCS_GUEST_GS_LIMIT 0x0000480a #define VMCS_GUEST_LDTR_LIMIT 0x0000480c #define VMCS_GUEST_TR_LIMIT 0x0000480e #define VMCS_GUEST_GDTR_LIMIT 0x00004810 #define VMCS_GUEST_IDTR_LIMIT 0x00004812 #define VMCS_GUEST_ES_ACCESS_RIGHTS 0x00004814 #define VMCS_GUEST_CS_ACCESS_RIGHTS 0x00004816 #define VMCS_GUEST_SS_ACCESS_RIGHTS 0x00004818 #define VMCS_GUEST_DS_ACCESS_RIGHTS 0x0000481a #define VMCS_GUEST_FS_ACCESS_RIGHTS 0x0000481c #define VMCS_GUEST_GS_ACCESS_RIGHTS 0x0000481e #define VMCS_GUEST_LDTR_ACCESS_RIGHTS 0x00004820 #define VMCS_GUEST_TR_ACCESS_RIGHTS 0x00004822 #define VMCS_GUEST_ACTIVITY_STATE 0x00004824 #define VMCS_GUEST_INTERRUPTIBILITY_INFO 0x00004826 #define VMCS_GUEST_SYSENTER_CS 0x0000482a #define VMCS_GUEST_CR0 0x00006800 #define VMCS_GUEST_CR3 0x00006802 #define VMCS_GUEST_CR4 0x00006804 #define VMCS_GUEST_ES_BASE 0x00006806 #define VMCS_GUEST_CS_BASE 0x00006808 #define VMCS_GUEST_SS_BASE 0x0000680a #define VMCS_GUEST_DS_BASE 0x0000680c #define VMCS_GUEST_FS_BASE 0x0000680e #define VMCS_GUEST_GS_BASE 0x00006810 #define VMCS_GUEST_LDTR_BASE 0x00006812 #define VMCS_GUEST_TR_BASE 0x00006814 #define VMCS_GUEST_GDTR_BASE 0x00006816 #define VMCS_GUEST_IDTR_BASE 0x00006818 #define VMCS_GUEST_DR7 0x0000681a #define VMCS_GUEST_RSP 0x0000681c #define VMCS_GUEST_RIP 0x0000681e #define VMCS_GUEST_RFLAGS 0x00006820 #define VMCS_GUEST_PENDING_DBG_EXCEPTIONS 0x00006822 #define VMCS_GUEST_SYSENTER_ESP 0x00006824 #define VMCS_GUEST_SYSENTER_EIP 0x00006826 #define VMCB_CTRL_INTERCEPT_VEC3 0x0c #define VMCB_CTRL_INTERCEPT_VEC3_ALL (0xffffffff) #define VMCB_CTRL_INTERCEPT_VEC4 0x10 #define VMCB_CTRL_INTERCEPT_VEC4_ALL (0x3ff) #define VMCB_CTRL_ASID 0x058 #define VMCB_EXIT_CODE 0x070 #define VMCB_CTRL_NP_ENABLE 0x090 #define VMCB_CTRL_NPT_ENABLE_BIT 0 #define VMCB_CTRL_N_CR3 0x0b0 #define VMCB_GUEST_ES_SEL 0x400 #define VMCB_GUEST_ES_ATTR 0x402 #define VMCB_GUEST_ES_LIM 0x404 #define VMCB_GUEST_ES_BASE 0x408 #define VMCB_GUEST_CS_SEL 0x410 #define VMCB_GUEST_CS_ATTR 0x412 #define VMCB_GUEST_CS_LIM 0x414 #define VMCB_GUEST_CS_BASE 0x418 #define VMCB_GUEST_SS_SEL 0x420 #define VMCB_GUEST_SS_ATTR 0x422 #define VMCB_GUEST_SS_LIM 0x424 #define VMCB_GUEST_SS_BASE 0x428 #define VMCB_GUEST_DS_SEL 0x430 #define VMCB_GUEST_DS_ATTR 0x432 #define VMCB_GUEST_DS_LIM 0x434 #define VMCB_GUEST_DS_BASE 0x438 #define VMCB_GUEST_FS_SEL 0x440 #define VMCB_GUEST_FS_ATTR 0x442 #define VMCB_GUEST_FS_LIM 0x444 #define VMCB_GUEST_FS_BASE 0x448 #define VMCB_GUEST_GS_SEL 0x450 #define VMCB_GUEST_GS_ATTR 0x452 #define VMCB_GUEST_GS_LIM 0x454 #define VMCB_GUEST_GS_BASE 0x458 #define VMCB_GUEST_IDTR_SEL 0x480 #define VMCB_GUEST_IDTR_ATTR 0x482 #define VMCB_GUEST_IDTR_LIM 0x484 #define VMCB_GUEST_IDTR_BASE 0x488 #define VMCB_GUEST_GDTR_SEL 0x460 #define VMCB_GUEST_GDTR_ATTR 0x462 #define VMCB_GUEST_GDTR_LIM 0x464 #define VMCB_GUEST_GDTR_BASE 0x468 #define VMCB_GUEST_LDTR_SEL 0x470 #define VMCB_GUEST_LDTR_ATTR 0x472 #define VMCB_GUEST_LDTR_LIM 0x474 #define VMCB_GUEST_LDTR_BASE 0x478 #define VMCB_GUEST_TR_SEL 0x490 #define VMCB_GUEST_TR_ATTR 0x492 #define VMCB_GUEST_TR_LIM 0x494 #define VMCB_GUEST_TR_BASE 0x498 #define VMCB_GUEST_EFER 0x4d0 #define VMCB_GUEST_CR4 0x548 #define VMCB_GUEST_CR3 0x550 #define VMCB_GUEST_CR0 0x558 #define VMCB_GUEST_DR7 0x560 #define VMCB_GUEST_DR6 0x568 #define VMCB_GUEST_RFLAGS 0x570 #define VMCB_GUEST_RIP 0x578 #define VMCB_GUEST_RSP 0x5d8 #define VMCB_GUEST_PAT 0x668 #define VMCB_GUEST_DEBUGCTL 0x670 #define SVM_ATTR_G (1 << 15) #define SVM_ATTR_DB (1 << 14) #define SVM_ATTR_L (1 << 13) #define SVM_ATTR_P (1 << 7) #define SVM_ATTR_S (1 << 4) #define SVM_ATTR_TYPE_A (1 << 0) #define SVM_ATTR_TYPE_RW (1 << 1) #define SVM_ATTR_TYPE_E (1 << 3) #define SVM_ATTR_64BIT_CODE (SVM_ATTR_P | SVM_ATTR_S | SVM_ATTR_TYPE_E | SVM_ATTR_TYPE_RW | SVM_ATTR_TYPE_A | SVM_ATTR_L | SVM_ATTR_G) #define SVM_ATTR_64BIT_DATA (SVM_ATTR_P | SVM_ATTR_S | SVM_ATTR_TYPE_RW | SVM_ATTR_TYPE_A | SVM_ATTR_DB | SVM_ATTR_G) #define X86_NEXT_INSN $0xbadc0de #define X86_PREFIX_SIZE 0xba1d #define KVM_MAX_VCPU 4 #define KVM_PAGE_SIZE (1 << 12) #define KVM_GUEST_PAGES 1024 #define KVM_GUEST_MEM_SIZE (KVM_GUEST_PAGES * KVM_PAGE_SIZE) #define SZ_4K 0x00001000 #define SZ_64K 0x00010000 #define GENMASK_ULL(h,l) (((~0ULL) - (1ULL << (l)) + 1ULL) & (~0ULL >> (63 - (h)))) extern char* __start_guest; static inline uintptr_t executor_fn_guest_addr(void* fn) { volatile uintptr_t start = (uintptr_t)&__start_guest; volatile uintptr_t offset = SYZOS_ADDR_EXECUTOR_CODE; return (uintptr_t)fn - start + offset; } typedef enum { SYZOS_API_UEXIT = 0, SYZOS_API_CODE = 10, SYZOS_API_CPUID = 100, SYZOS_API_WRMSR = 101, SYZOS_API_RDMSR = 102, SYZOS_API_WR_CRN = 103, SYZOS_API_WR_DRN = 104, SYZOS_API_IN_DX = 105, SYZOS_API_OUT_DX = 106, SYZOS_API_SET_IRQ_HANDLER = 200, SYZOS_API_ENABLE_NESTED = 300, SYZOS_API_NESTED_CREATE_VM = 301, SYZOS_API_NESTED_LOAD_CODE = 302, SYZOS_API_NESTED_VMLAUNCH = 303, SYZOS_API_NESTED_VMRESUME = 304, SYZOS_API_NESTED_INTEL_VMWRITE_MASK = 340, SYZOS_API_NESTED_AMD_VMCB_WRITE_MASK = 380, SYZOS_API_NESTED_AMD_INVLPGA = 381, SYZOS_API_NESTED_AMD_STGI = 382, SYZOS_API_NESTED_AMD_CLGI = 383, SYZOS_API_NESTED_AMD_INJECT_EVENT = 384, SYZOS_API_NESTED_AMD_SET_INTERCEPT = 385, SYZOS_API_NESTED_AMD_VMLOAD = 386, SYZOS_API_NESTED_AMD_VMSAVE = 387, SYZOS_API_STOP, } syzos_api_id; struct api_call_header { uint64_t call; uint64_t size; }; struct api_call_uexit { struct api_call_header header; uint64_t exit_code; }; struct api_call_code { struct api_call_header header; uint8_t insns[]; }; struct api_call_nested_load_code { struct api_call_header header; uint64_t vm_id; uint8_t insns[]; }; struct api_call_cpuid { struct api_call_header header; uint32_t eax; uint32_t ecx; }; struct api_call_1 { struct api_call_header header; uint64_t arg; }; struct api_call_2 { struct api_call_header header; uint64_t args[2]; }; struct api_call_3 { struct api_call_header header; uint64_t args[3]; }; struct api_call_5 { struct api_call_header header; uint64_t args[5]; }; struct l2_guest_regs { uint64_t rax, rbx, rcx, rdx, rsi, rdi, rbp; uint64_t r8, r9, r10, r11, r12, r13, r14, r15; }; GUEST_CODE static void guest_uexit(uint64_t exit_code); GUEST_CODE static void nested_vm_exit_handler_intel(uint64_t exit_reason, struct l2_guest_regs* regs); GUEST_CODE static void guest_execute_code(uint8_t* insns, uint64_t size); GUEST_CODE static void guest_handle_cpuid(uint32_t eax, uint32_t ecx); GUEST_CODE static void guest_handle_wrmsr(uint64_t reg, uint64_t val); GUEST_CODE static void guest_handle_rdmsr(uint64_t reg); GUEST_CODE static void guest_handle_wr_crn(struct api_call_2* cmd); GUEST_CODE static void guest_handle_wr_drn(struct api_call_2* cmd); GUEST_CODE static void guest_handle_in_dx(struct api_call_2* cmd); GUEST_CODE static void guest_handle_out_dx(struct api_call_3* cmd); GUEST_CODE static void guest_handle_set_irq_handler(struct api_call_2* cmd); GUEST_CODE static void guest_handle_enable_nested(struct api_call_1* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_create_vm(struct api_call_1* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_load_code(struct api_call_nested_load_code* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_vmlaunch(struct api_call_1* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_vmresume(struct api_call_1* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_intel_vmwrite_mask(struct api_call_5* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_vmcb_write_mask(struct api_call_5* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_invlpga(struct api_call_2* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_stgi(); GUEST_CODE static void guest_handle_nested_amd_clgi(); GUEST_CODE static void guest_handle_nested_amd_inject_event(struct api_call_5* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_set_intercept(struct api_call_5* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_vmload(struct api_call_1* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_vmsave(struct api_call_1* cmd, uint64_t cpu_id); typedef enum { UEXIT_END = (uint64_t)-1, UEXIT_IRQ = (uint64_t)-2, UEXIT_ASSERT = (uint64_t)-3, } uexit_code; typedef enum { CPU_VENDOR_INTEL, CPU_VENDOR_AMD, } cpu_vendor_id; __attribute__((naked)) GUEST_CODE static void dummy_null_handler() { asm("iretq"); } __attribute__((naked)) GUEST_CODE static void uexit_irq_handler() { asm volatile(R"( movq $-2, %rdi call guest_uexit iretq )"); } __attribute__((used)) GUEST_CODE static void guest_main(uint64_t size, uint64_t cpu) { uint64_t addr = X86_SYZOS_ADDR_USER_CODE + cpu * KVM_PAGE_SIZE; while (size >= sizeof(struct api_call_header)) { struct api_call_header* cmd = (struct api_call_header*)addr; if (cmd->call >= SYZOS_API_STOP) return; if (cmd->size > size) return; volatile uint64_t call = cmd->call; if (call == SYZOS_API_UEXIT) { struct api_call_uexit* ucmd = (struct api_call_uexit*)cmd; guest_uexit(ucmd->exit_code); } else if (call == SYZOS_API_CODE) { struct api_call_code* ccmd = (struct api_call_code*)cmd; guest_execute_code(ccmd->insns, cmd->size - sizeof(struct api_call_header)); } else if (call == SYZOS_API_CPUID) { struct api_call_cpuid* ccmd = (struct api_call_cpuid*)cmd; guest_handle_cpuid(ccmd->eax, ccmd->ecx); } else if (call == SYZOS_API_WRMSR) { struct api_call_2* ccmd = (struct api_call_2*)cmd; guest_handle_wrmsr(ccmd->args[0], ccmd->args[1]); } else if (call == SYZOS_API_RDMSR) { struct api_call_1* ccmd = (struct api_call_1*)cmd; guest_handle_rdmsr(ccmd->arg); } else if (call == SYZOS_API_WR_CRN) { guest_handle_wr_crn((struct api_call_2*)cmd); } else if (call == SYZOS_API_WR_DRN) { guest_handle_wr_drn((struct api_call_2*)cmd); } else if (call == SYZOS_API_IN_DX) { guest_handle_in_dx((struct api_call_2*)cmd); } else if (call == SYZOS_API_OUT_DX) { guest_handle_out_dx((struct api_call_3*)cmd); } else if (call == SYZOS_API_SET_IRQ_HANDLER) { guest_handle_set_irq_handler((struct api_call_2*)cmd); } else if (call == SYZOS_API_ENABLE_NESTED) { guest_handle_enable_nested((struct api_call_1*)cmd, cpu); } else if (call == SYZOS_API_NESTED_CREATE_VM) { guest_handle_nested_create_vm((struct api_call_1*)cmd, cpu); } else if (call == SYZOS_API_NESTED_LOAD_CODE) { guest_handle_nested_load_code((struct api_call_nested_load_code*)cmd, cpu); } else if (call == SYZOS_API_NESTED_VMLAUNCH) { guest_handle_nested_vmlaunch((struct api_call_1*)cmd, cpu); } else if (call == SYZOS_API_NESTED_VMRESUME) { guest_handle_nested_vmresume((struct api_call_1*)cmd, cpu); } else if (call == SYZOS_API_NESTED_INTEL_VMWRITE_MASK) { guest_handle_nested_intel_vmwrite_mask((struct api_call_5*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_VMCB_WRITE_MASK) { guest_handle_nested_amd_vmcb_write_mask((struct api_call_5*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_INVLPGA) { guest_handle_nested_amd_invlpga((struct api_call_2*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_STGI) { guest_handle_nested_amd_stgi(); } else if (call == SYZOS_API_NESTED_AMD_CLGI) { guest_handle_nested_amd_clgi(); } else if (call == SYZOS_API_NESTED_AMD_INJECT_EVENT) { guest_handle_nested_amd_inject_event((struct api_call_5*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_SET_INTERCEPT) { guest_handle_nested_amd_set_intercept((struct api_call_5*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_VMLOAD) { guest_handle_nested_amd_vmload((struct api_call_1*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_VMSAVE) { guest_handle_nested_amd_vmsave((struct api_call_1*)cmd, cpu); } addr += cmd->size; size -= cmd->size; }; guest_uexit((uint64_t)-1); } GUEST_CODE static noinline void guest_execute_code(uint8_t* insns, uint64_t size) { volatile void (*fn)() = (volatile void (*)())insns; fn(); } __attribute__((used)) GUEST_CODE static noinline void guest_uexit(uint64_t exit_code) { volatile uint64_t* ptr = (volatile uint64_t*)X86_SYZOS_ADDR_UEXIT; *ptr = exit_code; } GUEST_CODE static noinline void guest_handle_cpuid(uint32_t eax, uint32_t ecx) { asm volatile( "cpuid\n" : : "a"(eax), "c"(ecx) : "rbx", "rdx"); } GUEST_CODE static noinline void wrmsr(uint64_t reg, uint64_t val) { asm volatile( "wrmsr" : : "c"(reg), "a"((uint32_t)val), "d"((uint32_t)(val >> 32)) : "memory"); } GUEST_CODE static noinline void guest_handle_wrmsr(uint64_t reg, uint64_t val) { wrmsr(reg, val); } GUEST_CODE static noinline uint64_t rdmsr(uint64_t msr_id) { uint32_t low = 0, high = 0; asm volatile("rdmsr" : "=a"(low), "=d"(high) : "c"(msr_id)); return ((uint64_t)high << 32) | low; } GUEST_CODE static noinline void guest_handle_rdmsr(uint64_t reg) { (void)rdmsr(reg); } GUEST_CODE static noinline void guest_handle_wr_crn(struct api_call_2* cmd) { uint64_t value = cmd->args[1]; volatile uint64_t reg = cmd->args[0]; if (reg == 0) { asm volatile("movq %0, %%cr0" ::"r"(value) : "memory"); return; } if (reg == 2) { asm volatile("movq %0, %%cr2" ::"r"(value) : "memory"); return; } if (reg == 3) { asm volatile("movq %0, %%cr3" ::"r"(value) : "memory"); return; } if (reg == 4) { asm volatile("movq %0, %%cr4" ::"r"(value) : "memory"); return; } if (reg == 8) { asm volatile("movq %0, %%cr8" ::"r"(value) : "memory"); return; } } GUEST_CODE static noinline void guest_handle_wr_drn(struct api_call_2* cmd) { uint64_t value = cmd->args[1]; volatile uint64_t reg = cmd->args[0]; if (reg == 0) { asm volatile("movq %0, %%dr0" ::"r"(value) : "memory"); return; } if (reg == 1) { asm volatile("movq %0, %%dr1" ::"r"(value) : "memory"); return; } if (reg == 2) { asm volatile("movq %0, %%dr2" ::"r"(value) : "memory"); return; } if (reg == 3) { asm volatile("movq %0, %%dr3" ::"r"(value) : "memory"); return; } if (reg == 4) { asm volatile("movq %0, %%dr4" ::"r"(value) : "memory"); return; } if (reg == 5) { asm volatile("movq %0, %%dr5" ::"r"(value) : "memory"); return; } if (reg == 6) { asm volatile("movq %0, %%dr6" ::"r"(value) : "memory"); return; } if (reg == 7) { asm volatile("movq %0, %%dr7" ::"r"(value) : "memory"); return; } } GUEST_CODE static noinline void guest_handle_in_dx(struct api_call_2* cmd) { uint16_t port = cmd->args[0]; volatile int size = cmd->args[1]; if (size == 1) { uint8_t unused; asm volatile("inb %1, %0" : "=a"(unused) : "d"(port)); return; } if (size == 2) { uint16_t unused; asm volatile("inw %1, %0" : "=a"(unused) : "d"(port)); return; } if (size == 4) { uint32_t unused; asm volatile("inl %1, %0" : "=a"(unused) : "d"(port)); } return; } GUEST_CODE static noinline void guest_handle_out_dx(struct api_call_3* cmd) { uint16_t port = cmd->args[0]; volatile int size = cmd->args[1]; uint32_t data = (uint32_t)cmd->args[2]; if (size == 1) { asm volatile("outb %b0, %w1" ::"a"(data), "d"(port)); return; } if (size == 2) { asm volatile("outw %w0, %w1" ::"a"(data), "d"(port)); return; } if (size == 4) { asm volatile("outl %k0, %w1" ::"a"(data), "d"(port)); return; } } struct idt_entry_64 { uint16_t offset_low; uint16_t selector; uint8_t ist; uint8_t type_attr; uint16_t offset_mid; uint32_t offset_high; uint32_t reserved; } __attribute__((packed)); GUEST_CODE static void set_idt_gate(uint8_t vector, uint64_t handler) { volatile struct idt_entry_64* idt = (volatile struct idt_entry_64*)(X86_SYZOS_ADDR_VAR_IDT); volatile struct idt_entry_64* idt_entry = &idt[vector]; idt_entry->offset_low = (uint16_t)handler; idt_entry->offset_mid = (uint16_t)(handler >> 16); idt_entry->offset_high = (uint32_t)(handler >> 32); idt_entry->selector = X86_SYZOS_SEL_CODE; idt_entry->type_attr = 0x8E; idt_entry->ist = 0; idt_entry->reserved = 0; } GUEST_CODE static noinline void guest_handle_set_irq_handler(struct api_call_2* cmd) { uint8_t vector = (uint8_t)cmd->args[0]; uint64_t type = cmd->args[1]; volatile uint64_t handler_addr = 0; if (type == 1) handler_addr = executor_fn_guest_addr(dummy_null_handler); else if (type == 2) handler_addr = executor_fn_guest_addr(uexit_irq_handler); set_idt_gate(vector, handler_addr); } GUEST_CODE static cpu_vendor_id get_cpu_vendor(void) { uint32_t ebx, eax = 0; asm volatile( "cpuid" : "+a"(eax), "=b"(ebx) : : "ecx", "edx"); if (ebx == 0x756e6547) { return CPU_VENDOR_INTEL; } else if (ebx == 0x68747541) { return CPU_VENDOR_AMD; } else { guest_uexit(UEXIT_ASSERT); return CPU_VENDOR_INTEL; } } GUEST_CODE static inline uint64_t read_cr0(void) { uint64_t val; asm volatile("mov %%cr0, %0" : "=r"(val)); return val; } GUEST_CODE static inline uint64_t read_cr3(void) { uint64_t val; asm volatile("mov %%cr3, %0" : "=r"(val)); return val; } GUEST_CODE static inline uint64_t read_cr4(void) { uint64_t val; asm volatile("mov %%cr4, %0" : "=r"(val)); return val; } GUEST_CODE static inline void write_cr4(uint64_t val) { asm volatile("mov %0, %%cr4" : : "r"(val)); } GUEST_CODE static noinline void vmwrite(uint64_t field, uint64_t value) { uint8_t error = 0; asm volatile("vmwrite %%rax, %%rbx; setna %0" : "=q"(error) : "a"(value), "b"(field) : "cc", "memory"); if (error) guest_uexit(UEXIT_ASSERT); } GUEST_CODE static noinline uint64_t vmread(uint64_t field) { uint64_t value; asm volatile("vmread %%rbx, %%rax" : "=a"(value) : "b"(field) : "cc"); return value; } GUEST_CODE static inline void nested_vmptrld(uint64_t cpu_id, uint64_t vm_id) { uint64_t vmcs_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint8_t error = 0; asm volatile("vmptrld %1; setna %0" : "=q"(error) : "m"(vmcs_addr) : "memory", "cc"); if (error) guest_uexit(0xE2BAD2); } GUEST_CODE static noinline void vmcb_write16(uint64_t vmcb, uint16_t offset, uint16_t val) { *((volatile uint16_t*)(vmcb + offset)) = val; } GUEST_CODE static noinline void vmcb_write32(uint64_t vmcb, uint16_t offset, uint32_t val) { *((volatile uint32_t*)(vmcb + offset)) = val; } GUEST_CODE static noinline uint32_t vmcb_read32(uint64_t vmcb, uint16_t offset) { return *((volatile uint32_t*)(vmcb + offset)); } GUEST_CODE static noinline void vmcb_write64(uint64_t vmcb, uint16_t offset, uint64_t val) { *((volatile uint64_t*)(vmcb + offset)) = val; } GUEST_CODE static noinline uint64_t vmcb_read64(volatile uint8_t* vmcb, uint16_t offset) { return *((volatile uint64_t*)(vmcb + offset)); } GUEST_CODE static void guest_memset(void* s, uint8_t c, int size) { volatile uint8_t* p = (volatile uint8_t*)s; for (int i = 0; i < size; i++) p[i] = c; } GUEST_CODE static void guest_memcpy(void* dst, void* src, int size) { volatile uint8_t* d = (volatile uint8_t*)dst; volatile uint8_t* s = (volatile uint8_t*)src; for (int i = 0; i < size; i++) d[i] = s[i]; } GUEST_CODE static noinline void nested_enable_vmx_intel(uint64_t cpu_id) { uint64_t vmxon_addr = X86_SYZOS_ADDR_VM_ARCH_SPECIFIC(cpu_id); uint64_t cr4 = read_cr4(); cr4 |= X86_CR4_VMXE; write_cr4(cr4); uint64_t feature_control = rdmsr(X86_MSR_IA32_FEATURE_CONTROL); if ((feature_control & 1) == 0) { feature_control |= 0b101; asm volatile("wrmsr" : : "d"(0x0), "c"(X86_MSR_IA32_FEATURE_CONTROL), "A"(feature_control)); } *(uint32_t*)vmxon_addr = rdmsr(X86_MSR_IA32_VMX_BASIC); uint8_t error; asm volatile("vmxon %1; setna %0" : "=q"(error) : "m"(vmxon_addr) : "memory", "cc"); if (error) { guest_uexit(0xE2BAD0); return; } } GUEST_CODE static noinline void nested_enable_svm_amd(uint64_t cpu_id) { uint64_t hsave_addr = X86_SYZOS_ADDR_VM_ARCH_SPECIFIC(cpu_id); uint64_t efer = rdmsr(X86_MSR_IA32_EFER); efer |= X86_EFER_SVME; wrmsr(X86_MSR_IA32_EFER, efer); wrmsr(X86_MSR_VM_HSAVE_PA, hsave_addr); } GUEST_CODE static noinline void guest_handle_enable_nested(struct api_call_1* cmd, uint64_t cpu_id) { if (get_cpu_vendor() == CPU_VENDOR_INTEL) { nested_enable_vmx_intel(cpu_id); } else { nested_enable_svm_amd(cpu_id); } } GUEST_CODE static noinline void setup_l2_page_tables(cpu_vendor_id vendor, uint64_t cpu_id, uint64_t vm_id) { uint64_t l2_pml4_addr = X86_SYZOS_ADDR_VM_PGTABLE(cpu_id, vm_id); uint64_t l2_pdpt_addr = l2_pml4_addr + KVM_PAGE_SIZE; uint64_t l2_pd_addr = l2_pml4_addr + 2 * KVM_PAGE_SIZE; uint64_t l2_pt_addr = l2_pml4_addr + 3 * KVM_PAGE_SIZE; volatile uint64_t* pml4 = (volatile uint64_t*)l2_pml4_addr; volatile uint64_t* pdpt = (volatile uint64_t*)l2_pdpt_addr; volatile uint64_t* pd = (volatile uint64_t*)l2_pd_addr; volatile uint64_t* pt = (volatile uint64_t*)l2_pt_addr; guest_memset((void*)l2_pml4_addr, 0, KVM_PAGE_SIZE); guest_memset((void*)l2_pdpt_addr, 0, KVM_PAGE_SIZE); guest_memset((void*)l2_pd_addr, 0, KVM_PAGE_SIZE); guest_memset((void*)l2_pt_addr, 0, KVM_PAGE_SIZE); guest_memset((void*)X86_SYZOS_ADDR_MSR_BITMAP(cpu_id, vm_id), 0, KVM_PAGE_SIZE); uint64_t flags = X86_PDE64_PRESENT | X86_PDE64_RW | X86_PDE64_USER; pml4[0] = l2_pdpt_addr | flags; pdpt[0] = l2_pd_addr | flags; pd[0] = l2_pt_addr | flags; uint64_t pt_flags = flags; if (vendor == CPU_VENDOR_INTEL) { pt_flags |= EPT_MEMTYPE_WB | EPT_ACCESSED | EPT_DIRTY; } else { pt_flags |= X86_PDE64_ACCESSED | X86_PDE64_DIRTY; } for (int i = 0; i < 512; i++) pt[i] = (i * KVM_PAGE_SIZE) | pt_flags; } GUEST_CODE static noinline void init_vmcs_control_fields(uint64_t cpu_id, uint64_t vm_id) { uint64_t vmx_msr = rdmsr(X86_MSR_IA32_VMX_TRUE_PINBASED_CTLS); vmwrite(VMCS_PIN_BASED_VM_EXEC_CONTROL, (uint32_t)vmx_msr); vmx_msr = (uint32_t)rdmsr(X86_MSR_IA32_VMX_PROCBASED_CTLS2); vmx_msr |= SECONDARY_EXEC_ENABLE_EPT | SECONDARY_EXEC_ENABLE_RDTSCP; vmwrite(VMCS_SECONDARY_VM_EXEC_CONTROL, vmx_msr); vmx_msr = rdmsr(X86_MSR_IA32_VMX_TRUE_PROCBASED_CTLS); vmx_msr |= CPU_BASED_ACTIVATE_SECONDARY_CONTROLS; vmx_msr |= CPU_BASED_HLT_EXITING | CPU_BASED_RDTSC_EXITING; vmwrite(VMCS_CPU_BASED_VM_EXEC_CONTROL, (uint32_t)vmx_msr); vmx_msr = rdmsr(X86_MSR_IA32_VMX_TRUE_EXIT_CTLS); vmwrite(VMCS_VM_EXIT_CONTROLS, (uint32_t)vmx_msr | VM_EXIT_HOST_ADDR_SPACE_SIZE); vmx_msr = rdmsr(X86_MSR_IA32_VMX_TRUE_ENTRY_CTLS); vmwrite(VMCS_VM_ENTRY_CONTROLS, (uint32_t)vmx_msr | VM_ENTRY_IA32E_MODE); uint64_t eptp = (X86_SYZOS_ADDR_VM_PGTABLE(cpu_id, vm_id) & ~0xFFF) | (6 << 0) | (3 << 3); vmwrite(VMCS_EPT_POINTER, eptp); vmwrite(VMCS_CR0_GUEST_HOST_MASK, 0); vmwrite(VMCS_CR4_GUEST_HOST_MASK, 0); vmwrite(VMCS_CR0_READ_SHADOW, read_cr0()); vmwrite(VMCS_CR4_READ_SHADOW, read_cr4()); vmwrite(VMCS_MSR_BITMAP, 0); vmwrite(VMCS_VMREAD_BITMAP, 0); vmwrite(VMCS_VMWRITE_BITMAP, 0); vmwrite(VMCS_EXCEPTION_BITMAP, (1 << 6)); vmwrite(VMCS_VIRTUAL_PROCESSOR_ID, 0); vmwrite(VMCS_POSTED_INTR_NV, 0); vmwrite(VMCS_PAGE_FAULT_ERROR_CODE_MASK, 0); vmwrite(VMCS_PAGE_FAULT_ERROR_CODE_MATCH, -1); vmwrite(VMCS_CR3_TARGET_COUNT, 0); vmwrite(VMCS_VM_EXIT_MSR_STORE_COUNT, 0); vmwrite(VMCS_VM_EXIT_MSR_LOAD_COUNT, 0); vmwrite(VMCS_VM_ENTRY_MSR_LOAD_COUNT, 0); vmwrite(VMCS_VM_ENTRY_INTR_INFO_FIELD, 0); vmwrite(VMCS_TPR_THRESHOLD, 0); } typedef enum { SYZOS_NESTED_EXIT_REASON_HLT = 1, SYZOS_NESTED_EXIT_REASON_INVD = 2, SYZOS_NESTED_EXIT_REASON_CPUID = 3, SYZOS_NESTED_EXIT_REASON_RDTSC = 4, SYZOS_NESTED_EXIT_REASON_RDTSCP = 5, SYZOS_NESTED_EXIT_REASON_UNKNOWN = 0xFF, } syz_nested_exit_reason; GUEST_CODE static void guest_uexit_l2(uint64_t exit_reason, syz_nested_exit_reason mapped_reason, cpu_vendor_id vendor) { if (mapped_reason != SYZOS_NESTED_EXIT_REASON_UNKNOWN) { guest_uexit(0xe2e20000 | mapped_reason); } else if (vendor == CPU_VENDOR_INTEL) { guest_uexit(0xe2110000 | exit_reason); } else { guest_uexit(0xe2aa0000 | exit_reason); } } #define EXIT_REASON_CPUID 0xa #define EXIT_REASON_HLT 0xc #define EXIT_REASON_INVD 0xd #define EXIT_REASON_RDTSC 0x10 #define EXIT_REASON_RDTSCP 0x33 GUEST_CODE static syz_nested_exit_reason map_intel_exit_reason(uint64_t basic_reason) { volatile uint64_t reason = basic_reason; if (reason == EXIT_REASON_HLT) return SYZOS_NESTED_EXIT_REASON_HLT; if (reason == EXIT_REASON_INVD) return SYZOS_NESTED_EXIT_REASON_INVD; if (reason == EXIT_REASON_CPUID) return SYZOS_NESTED_EXIT_REASON_CPUID; if (reason == EXIT_REASON_RDTSC) return SYZOS_NESTED_EXIT_REASON_RDTSC; if (reason == EXIT_REASON_RDTSCP) return SYZOS_NESTED_EXIT_REASON_RDTSCP; return SYZOS_NESTED_EXIT_REASON_UNKNOWN; } GUEST_CODE static void advance_l2_rip_intel(uint64_t basic_reason) { volatile uint64_t reason = basic_reason; uint64_t rip = vmread(VMCS_GUEST_RIP); if ((reason == EXIT_REASON_INVD) || (reason == EXIT_REASON_CPUID) || (reason == EXIT_REASON_RDTSC)) { rip += 2; } else if (reason == EXIT_REASON_RDTSCP) { rip += 3; } vmwrite(VMCS_GUEST_RIP, rip); } __attribute__((used)) GUEST_CODE static void nested_vm_exit_handler_intel(uint64_t exit_reason, struct l2_guest_regs* regs) { uint64_t basic_reason = exit_reason & 0xFFFF; syz_nested_exit_reason mapped_reason = map_intel_exit_reason(basic_reason); guest_uexit_l2(exit_reason, mapped_reason, CPU_VENDOR_INTEL); advance_l2_rip_intel(basic_reason); } extern char after_vmentry_label; __attribute__((naked)) GUEST_CODE static void nested_vm_exit_handler_intel_asm(void) { asm volatile(R"( push %%rax push %%rbx push %%rcx push %%rdx push %%rsi push %%rdi push %%rbp push %%r8 push %%r9 push %%r10 push %%r11 push %%r12 push %%r13 push %%r14 push %%r15 mov %%rsp, %%rsi mov %[vm_exit_reason], %%rbx vmread %%rbx, %%rdi call nested_vm_exit_handler_intel add %[stack_cleanup_size], %%rsp jmp after_vmentry_label )" : : [stack_cleanup_size] "i"(sizeof(struct l2_guest_regs)), [vm_exit_reason] "i"(VMCS_VM_EXIT_REASON) : "memory", "cc", "rbx", "rdi", "rsi"); } #define VMEXIT_RDTSC 0x6e #define VMEXIT_CPUID 0x72 #define VMEXIT_INVD 0x76 #define VMEXIT_HLT 0x78 #define VMEXIT_RDTSCP 0x87 GUEST_CODE static syz_nested_exit_reason map_amd_exit_reason(uint64_t basic_reason) { volatile uint64_t reason = basic_reason; if (reason == VMEXIT_HLT) return SYZOS_NESTED_EXIT_REASON_HLT; if (reason == VMEXIT_INVD) return SYZOS_NESTED_EXIT_REASON_INVD; if (reason == VMEXIT_CPUID) return SYZOS_NESTED_EXIT_REASON_CPUID; if (reason == VMEXIT_RDTSC) return SYZOS_NESTED_EXIT_REASON_RDTSC; if (reason == VMEXIT_RDTSCP) return SYZOS_NESTED_EXIT_REASON_RDTSCP; return SYZOS_NESTED_EXIT_REASON_UNKNOWN; } GUEST_CODE static void advance_l2_rip_amd(uint64_t basic_reason, uint64_t cpu_id, uint64_t vm_id) { volatile uint64_t reason = basic_reason; uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint64_t rip = vmcb_read64((volatile uint8_t*)vmcb_addr, VMCB_GUEST_RIP); if ((reason == VMEXIT_INVD) || (reason == VMEXIT_CPUID) || (reason == VMEXIT_RDTSC)) { rip += 2; } else if (reason == VMEXIT_RDTSCP) { rip += 3; } vmcb_write64(vmcb_addr, VMCB_GUEST_RIP, rip); } __attribute__((used)) GUEST_CODE static void nested_vm_exit_handler_amd(uint64_t exit_reason, uint64_t cpu_id, uint64_t vm_id) { volatile uint64_t basic_reason = exit_reason & 0xFFFF; syz_nested_exit_reason mapped_reason = map_amd_exit_reason(basic_reason); guest_uexit_l2(exit_reason, mapped_reason, CPU_VENDOR_AMD); advance_l2_rip_amd(basic_reason, cpu_id, vm_id); } GUEST_CODE static noinline void init_vmcs_host_state(void) { vmwrite(VMCS_HOST_CS_SELECTOR, X86_SYZOS_SEL_CODE); vmwrite(VMCS_HOST_DS_SELECTOR, X86_SYZOS_SEL_DATA); vmwrite(VMCS_HOST_ES_SELECTOR, X86_SYZOS_SEL_DATA); vmwrite(VMCS_HOST_SS_SELECTOR, X86_SYZOS_SEL_DATA); vmwrite(VMCS_HOST_FS_SELECTOR, X86_SYZOS_SEL_DATA); vmwrite(VMCS_HOST_GS_SELECTOR, X86_SYZOS_SEL_DATA); vmwrite(VMCS_HOST_TR_SELECTOR, X86_SYZOS_SEL_TSS64); vmwrite(VMCS_HOST_TR_BASE, 0); vmwrite(VMCS_HOST_GDTR_BASE, X86_SYZOS_ADDR_GDT); vmwrite(VMCS_HOST_IDTR_BASE, X86_SYZOS_ADDR_VAR_IDT); vmwrite(VMCS_HOST_FS_BASE, rdmsr(X86_MSR_FS_BASE)); vmwrite(VMCS_HOST_GS_BASE, rdmsr(X86_MSR_GS_BASE)); uint64_t tmpreg = 0; asm volatile("mov %%rsp, %0" : "=r"(tmpreg)); vmwrite(VMCS_HOST_RSP, tmpreg); vmwrite(VMCS_HOST_RIP, (uintptr_t)nested_vm_exit_handler_intel_asm); vmwrite(VMCS_HOST_CR0, read_cr0()); vmwrite(VMCS_HOST_CR3, read_cr3()); vmwrite(VMCS_HOST_CR4, read_cr4()); vmwrite(VMCS_HOST_IA32_PAT, rdmsr(X86_MSR_IA32_CR_PAT)); vmwrite(VMCS_HOST_IA32_EFER, rdmsr(X86_MSR_IA32_EFER)); vmwrite(VMCS_HOST_IA32_PERF_GLOBAL_CTRL, rdmsr(X86_MSR_CORE_PERF_GLOBAL_CTRL)); vmwrite(VMCS_HOST_IA32_SYSENTER_CS, rdmsr(X86_MSR_IA32_SYSENTER_CS)); vmwrite(VMCS_HOST_IA32_SYSENTER_ESP, rdmsr(X86_MSR_IA32_SYSENTER_ESP)); vmwrite(VMCS_HOST_IA32_SYSENTER_EIP, rdmsr(X86_MSR_IA32_SYSENTER_EIP)); } #define COPY_VMCS_FIELD(GUEST_FIELD,HOST_FIELD) vmwrite(GUEST_FIELD, vmread(HOST_FIELD)) #define SETUP_L2_SEGMENT(SEG,SELECTOR,BASE,LIMIT,AR) vmwrite(VMCS_GUEST_ ##SEG ##_SELECTOR, SELECTOR); vmwrite(VMCS_GUEST_ ##SEG ##_BASE, BASE); vmwrite(VMCS_GUEST_ ##SEG ##_LIMIT, LIMIT); vmwrite(VMCS_GUEST_ ##SEG ##_ACCESS_RIGHTS, AR); GUEST_CODE static noinline void init_vmcs_guest_state(uint64_t cpu_id, uint64_t vm_id) { uint64_t l2_code_addr = X86_SYZOS_ADDR_VM_CODE(cpu_id, vm_id); uint64_t l2_stack_addr = X86_SYZOS_ADDR_VM_STACK(cpu_id, vm_id); SETUP_L2_SEGMENT(CS, vmread(VMCS_HOST_CS_SELECTOR), 0, 0xFFFFFFFF, VMX_AR_64BIT_CODE); SETUP_L2_SEGMENT(DS, vmread(VMCS_HOST_DS_SELECTOR), 0, 0xFFFFFFFF, VMX_AR_64BIT_DATA_STACK); SETUP_L2_SEGMENT(ES, vmread(VMCS_HOST_ES_SELECTOR), 0, 0xFFFFFFFF, VMX_AR_64BIT_DATA_STACK); SETUP_L2_SEGMENT(SS, vmread(VMCS_HOST_SS_SELECTOR), 0, 0xFFFFFFFF, VMX_AR_64BIT_DATA_STACK); SETUP_L2_SEGMENT(FS, vmread(VMCS_HOST_FS_SELECTOR), vmread(VMCS_HOST_FS_BASE), 0xFFFFFFFF, VMX_AR_64BIT_DATA_STACK); SETUP_L2_SEGMENT(GS, vmread(VMCS_HOST_GS_SELECTOR), vmread(VMCS_HOST_GS_BASE), 0xFFFFFFFF, VMX_AR_64BIT_DATA_STACK); SETUP_L2_SEGMENT(TR, vmread(VMCS_HOST_TR_SELECTOR), vmread(VMCS_HOST_TR_BASE), 0x67, VMX_AR_TSS_BUSY); SETUP_L2_SEGMENT(LDTR, 0, 0, 0, VMX_AR_LDTR_UNUSABLE); vmwrite(VMCS_GUEST_CR0, vmread(VMCS_HOST_CR0)); vmwrite(VMCS_GUEST_CR3, vmread(VMCS_HOST_CR3)); vmwrite(VMCS_GUEST_CR4, vmread(VMCS_HOST_CR4)); vmwrite(VMCS_GUEST_RIP, l2_code_addr); vmwrite(VMCS_GUEST_RSP, l2_stack_addr + KVM_PAGE_SIZE - 8); vmwrite(VMCS_GUEST_RFLAGS, RFLAGS_1_BIT); vmwrite(VMCS_GUEST_DR7, 0x400); COPY_VMCS_FIELD(VMCS_GUEST_IA32_EFER, VMCS_HOST_IA32_EFER); COPY_VMCS_FIELD(VMCS_GUEST_IA32_PAT, VMCS_HOST_IA32_PAT); COPY_VMCS_FIELD(VMCS_GUEST_IA32_PERF_GLOBAL_CTRL, VMCS_HOST_IA32_PERF_GLOBAL_CTRL); COPY_VMCS_FIELD(VMCS_GUEST_SYSENTER_CS, VMCS_HOST_IA32_SYSENTER_CS); COPY_VMCS_FIELD(VMCS_GUEST_SYSENTER_ESP, VMCS_HOST_IA32_SYSENTER_ESP); COPY_VMCS_FIELD(VMCS_GUEST_SYSENTER_EIP, VMCS_HOST_IA32_SYSENTER_EIP); vmwrite(VMCS_GUEST_IA32_DEBUGCTL, 0); vmwrite(VMCS_GUEST_GDTR_BASE, vmread(VMCS_HOST_GDTR_BASE)); vmwrite(VMCS_GUEST_GDTR_LIMIT, 0xffff); vmwrite(VMCS_GUEST_IDTR_BASE, vmread(VMCS_HOST_IDTR_BASE)); vmwrite(VMCS_GUEST_IDTR_LIMIT, 0xffff); vmwrite(VMCS_LINK_POINTER, 0xffffffffffffffff); vmwrite(VMCS_GUEST_ACTIVITY_STATE, 0); vmwrite(VMCS_GUEST_INTERRUPTIBILITY_INFO, 0); vmwrite(VMCS_GUEST_PENDING_DBG_EXCEPTIONS, 0); vmwrite(VMCS_VMX_PREEMPTION_TIMER_VALUE, 0); vmwrite(VMCS_GUEST_INTR_STATUS, 0); vmwrite(VMCS_GUEST_PML_INDEX, 0); } GUEST_CODE static noinline void nested_create_vm_intel(struct api_call_1* cmd, uint64_t cpu_id) { uint64_t vm_id = cmd->arg; uint64_t vmcs_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint8_t error = 0; *(uint32_t*)vmcs_addr = rdmsr(X86_MSR_IA32_VMX_BASIC); asm volatile("vmclear %1; setna %0" : "=q"(error) : "m"(vmcs_addr) : "memory", "cc"); if (error) { guest_uexit(0xE2BAD1); return; } nested_vmptrld(cpu_id, vm_id); setup_l2_page_tables(CPU_VENDOR_INTEL, cpu_id, vm_id); init_vmcs_control_fields(cpu_id, vm_id); init_vmcs_host_state(); init_vmcs_guest_state(cpu_id, vm_id); } #define SETUP_L2_SEGMENT_SVM(VMBC_PTR,SEG_NAME,SELECTOR,BASE,LIMIT,ATTR) vmcb_write16(VMBC_PTR, VMCB_GUEST_ ##SEG_NAME ##_SEL, SELECTOR); vmcb_write16(VMBC_PTR, VMCB_GUEST_ ##SEG_NAME ##_ATTR, ATTR); vmcb_write32(VMBC_PTR, VMCB_GUEST_ ##SEG_NAME ##_LIM, LIMIT); vmcb_write64(VMBC_PTR, VMCB_GUEST_ ##SEG_NAME ##_BASE, BASE); GUEST_CODE static noinline void init_vmcb_guest_state(uint64_t cpu_id, uint64_t vm_id) { uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint64_t l2_code_addr = X86_SYZOS_ADDR_VM_CODE(cpu_id, vm_id); uint64_t l2_stack_addr = X86_SYZOS_ADDR_VM_STACK(cpu_id, vm_id); uint64_t npt_pml4_addr = X86_SYZOS_ADDR_VM_PGTABLE(cpu_id, vm_id); SETUP_L2_SEGMENT_SVM(vmcb_addr, CS, X86_SYZOS_SEL_CODE, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_CODE); SETUP_L2_SEGMENT_SVM(vmcb_addr, DS, X86_SYZOS_SEL_DATA, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_DATA); SETUP_L2_SEGMENT_SVM(vmcb_addr, ES, X86_SYZOS_SEL_DATA, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_DATA); SETUP_L2_SEGMENT_SVM(vmcb_addr, SS, X86_SYZOS_SEL_DATA, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_DATA); SETUP_L2_SEGMENT_SVM(vmcb_addr, FS, X86_SYZOS_SEL_DATA, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_DATA); SETUP_L2_SEGMENT_SVM(vmcb_addr, GS, X86_SYZOS_SEL_DATA, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_DATA); SETUP_L2_SEGMENT_SVM(vmcb_addr, TR, X86_SYZOS_SEL_TSS64, X86_SYZOS_ADDR_VAR_TSS, 0x67, VMX_AR_TSS_AVAILABLE); SETUP_L2_SEGMENT_SVM(vmcb_addr, LDTR, 0, 0, 0, SVM_ATTR_LDTR_UNUSABLE); uint64_t efer = rdmsr(X86_MSR_IA32_EFER); vmcb_write64(vmcb_addr, VMCB_GUEST_CR0, read_cr0() | X86_CR0_WP); vmcb_write64(vmcb_addr, VMCB_GUEST_CR3, read_cr3()); vmcb_write64(vmcb_addr, VMCB_GUEST_CR4, read_cr4()); vmcb_write64(vmcb_addr, VMCB_GUEST_RIP, l2_code_addr); vmcb_write64(vmcb_addr, VMCB_GUEST_RSP, l2_stack_addr + KVM_PAGE_SIZE - 8); vmcb_write64(vmcb_addr, VMCB_GUEST_RFLAGS, RFLAGS_1_BIT); vmcb_write64(vmcb_addr, VMCB_GUEST_DEBUGCTL, 0); vmcb_write64(vmcb_addr, VMCB_GUEST_DR6, 0x0); vmcb_write64(vmcb_addr, VMCB_GUEST_DR7, 0x0); vmcb_write64(vmcb_addr, VMCB_GUEST_EFER, efer & ~X86_EFER_SCE); vmcb_write64(vmcb_addr, VMCB_GUEST_PAT, rdmsr(X86_MSR_IA32_CR_PAT)); struct { uint16_t limit; uint64_t base; } __attribute__((packed)) gdtr, idtr; asm volatile("sgdt %0" : "=m"(gdtr)); asm volatile("sidt %0" : "=m"(idtr)); vmcb_write64(vmcb_addr, VMCB_GUEST_GDTR_BASE, gdtr.base); vmcb_write32(vmcb_addr, VMCB_GUEST_GDTR_LIM, gdtr.limit); vmcb_write64(vmcb_addr, VMCB_GUEST_IDTR_BASE, idtr.base); vmcb_write32(vmcb_addr, VMCB_GUEST_IDTR_LIM, idtr.limit); vmcb_write32(vmcb_addr, VMCB_CTRL_INTERCEPT_VEC3, VMCB_CTRL_INTERCEPT_VEC3_ALL); vmcb_write32(vmcb_addr, VMCB_CTRL_INTERCEPT_VEC4, VMCB_CTRL_INTERCEPT_VEC4_ALL); vmcb_write64(vmcb_addr, VMCB_CTRL_NP_ENABLE, (1 << VMCB_CTRL_NPT_ENABLE_BIT)); uint64_t npt_pointer = (npt_pml4_addr & ~0xFFF); vmcb_write64(vmcb_addr, VMCB_CTRL_N_CR3, npt_pointer); vmcb_write32(vmcb_addr, VMCB_CTRL_ASID, 1); } GUEST_CODE static noinline void nested_create_vm_amd(struct api_call_1* cmd, uint64_t cpu_id) { uint64_t vm_id = cmd->arg; uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); guest_memset((void*)vmcb_addr, 0, KVM_PAGE_SIZE); guest_memset((void*)X86_SYZOS_ADDR_VM_ARCH_SPECIFIC(cpu_id), 0, KVM_PAGE_SIZE); setup_l2_page_tables(CPU_VENDOR_AMD, cpu_id, vm_id); init_vmcb_guest_state(cpu_id, vm_id); } GUEST_CODE static noinline void guest_handle_nested_create_vm(struct api_call_1* cmd, uint64_t cpu_id) { if (get_cpu_vendor() == CPU_VENDOR_INTEL) { nested_create_vm_intel(cmd, cpu_id); } else { nested_create_vm_amd(cmd, cpu_id); } } GUEST_CODE static noinline void guest_handle_nested_load_code(struct api_call_nested_load_code* cmd, uint64_t cpu_id) { uint64_t vm_id = cmd->vm_id; uint64_t l2_code_addr = X86_SYZOS_ADDR_VM_CODE(cpu_id, vm_id); uint64_t l2_stack_addr = X86_SYZOS_ADDR_VM_STACK(cpu_id, vm_id); uint64_t l2_code_size = cmd->header.size - sizeof(struct api_call_header) - sizeof(uint64_t); if (l2_code_size > KVM_PAGE_SIZE) l2_code_size = KVM_PAGE_SIZE; guest_memcpy((void*)l2_code_addr, (void*)cmd->insns, l2_code_size); if (get_cpu_vendor() == CPU_VENDOR_INTEL) { nested_vmptrld(cpu_id, vm_id); vmwrite(VMCS_GUEST_RIP, l2_code_addr); vmwrite(VMCS_GUEST_RSP, l2_stack_addr + KVM_PAGE_SIZE - 8); } else { vmcb_write64(X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id), VMCB_GUEST_RIP, l2_code_addr); vmcb_write64(X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id), VMCB_GUEST_RSP, l2_stack_addr + KVM_PAGE_SIZE - 8); } } GUEST_CODE static noinline __optnone void guest_handle_nested_vmentry_intel(uint64_t vm_id, uint64_t cpu_id, bool is_launch) { uint64_t vmx_error_code = 0; uint8_t fail_flag = 0; nested_vmptrld(cpu_id, vm_id); if (is_launch) { asm volatile(R"( vmlaunch setc %%al setz %%bl or %%bl, %%al)" : "=a"(fail_flag) : : "rbx", "cc", "memory"); } else { asm volatile(R"( vmresume setc %%al setz %%bl or %%bl, %%al)" : "=a"(fail_flag) : : "rbx", "cc", "memory"); } asm volatile(".globl after_vmentry_label\nafter_vmentry_label:"); if (fail_flag) { vmx_error_code = vmread(VMCS_VM_INSTRUCTION_ERROR); guest_uexit(0xE2E10000 | (uint32_t)vmx_error_code); return; } } GUEST_CODE static noinline void guest_run_amd_vm(uint64_t cpu_id, uint64_t vm_id) { uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); volatile uint8_t* vmcb_ptr = (volatile uint8_t*)vmcb_addr; uint8_t fail_flag = 0; asm volatile( "mov %1, %%rax\n\t" "vmrun\n\t" "setc %0\n\t" : "=q"(fail_flag) : "m"(vmcb_addr) : "rax", "cc", "memory"); if (fail_flag) { guest_uexit(0xE2E10000 | 0xFFFF); return; } uint64_t exit_reason = vmcb_read64(vmcb_ptr, VMCB_EXIT_CODE); nested_vm_exit_handler_amd(exit_reason, cpu_id, vm_id); } GUEST_CODE static noinline void guest_handle_nested_vmlaunch(struct api_call_1* cmd, uint64_t cpu_id) { uint64_t vm_id = cmd->arg; if (get_cpu_vendor() == CPU_VENDOR_INTEL) { guest_handle_nested_vmentry_intel(vm_id, cpu_id, true); } else { guest_run_amd_vm(cpu_id, vm_id); } } GUEST_CODE static noinline void guest_handle_nested_vmresume(struct api_call_1* cmd, uint64_t cpu_id) { uint64_t vm_id = cmd->arg; if (get_cpu_vendor() == CPU_VENDOR_INTEL) { guest_handle_nested_vmentry_intel(vm_id, cpu_id, false); } else { guest_run_amd_vm(cpu_id, vm_id); } } GUEST_CODE static noinline void guest_handle_nested_intel_vmwrite_mask(struct api_call_5* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_INTEL) return; uint64_t vm_id = cmd->args[0]; nested_vmptrld(cpu_id, vm_id); uint64_t field = cmd->args[1]; uint64_t set_mask = cmd->args[2]; uint64_t unset_mask = cmd->args[3]; uint64_t flip_mask = cmd->args[4]; uint64_t current_value = vmread(field); uint64_t new_value = (current_value & ~unset_mask) | set_mask; new_value ^= flip_mask; vmwrite(field, new_value); } GUEST_CODE static noinline void guest_handle_nested_amd_vmcb_write_mask(struct api_call_5* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t vm_id = cmd->args[0]; uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint64_t offset = cmd->args[1]; uint64_t set_mask = cmd->args[2]; uint64_t unset_mask = cmd->args[3]; uint64_t flip_mask = cmd->args[4]; uint64_t current_value = vmcb_read64((volatile uint8_t*)vmcb_addr, offset); uint64_t new_value = (current_value & ~unset_mask) | set_mask; new_value ^= flip_mask; vmcb_write64(vmcb_addr, offset, new_value); } GUEST_CODE static noinline void guest_handle_nested_amd_invlpga(struct api_call_2* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t linear_addr = cmd->args[0]; uint32_t asid = (uint32_t)cmd->args[1]; asm volatile("invlpga" : : "a"(linear_addr), "c"(asid) : "memory"); } GUEST_CODE static noinline void guest_handle_nested_amd_stgi() { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; asm volatile("stgi" ::: "memory"); } GUEST_CODE static noinline void guest_handle_nested_amd_clgi() { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; asm volatile("clgi" ::: "memory"); } GUEST_CODE static noinline void guest_handle_nested_amd_inject_event(struct api_call_5* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t vm_id = cmd->args[0]; uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint64_t vector = cmd->args[1] & 0xFF; uint64_t type = cmd->args[2] & 0x7; uint64_t error_code = cmd->args[3] & 0xFFFFFFFF; uint64_t flags = cmd->args[4]; uint64_t event_inj = vector; event_inj |= (type << 8); if (flags & 2) event_inj |= (1ULL << 11); if (flags & 1) event_inj |= (1ULL << 31); event_inj |= (error_code << 32); vmcb_write64(vmcb_addr, 0x60, event_inj); } GUEST_CODE static noinline void guest_handle_nested_amd_set_intercept(struct api_call_5* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t vm_id = cmd->args[0]; uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint64_t offset = cmd->args[1]; uint64_t bit_mask = cmd->args[2]; uint64_t action = cmd->args[3]; uint32_t current = vmcb_read32(vmcb_addr, (uint16_t)offset); if (action == 1) current |= (uint32_t)bit_mask; else current &= ~((uint32_t)bit_mask); vmcb_write32(vmcb_addr, (uint16_t)offset, current); } GUEST_CODE static noinline void guest_handle_nested_amd_vmload(struct api_call_1* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t vm_id = cmd->arg; uint64_t vmcb_pa = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); asm volatile("vmload %%rax" ::"a"(vmcb_pa) : "memory"); } GUEST_CODE static noinline void guest_handle_nested_amd_vmsave(struct api_call_1* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t vm_id = cmd->arg; uint64_t vmcb_pa = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); asm volatile("vmsave %%rax" ::"a"(vmcb_pa) : "memory"); } const char kvm_asm16_cpl3[] = "\x0f\x20\xc0\x66\x83\xc8\x01\x0f\x22\xc0\xb8\xa0\x00\x0f\x00\xd8\xb8\x2b\x00\x8e\xd8\x8e\xc0\x8e\xe0\x8e\xe8\xbc\x00\x01\xc7\x06\x00\x01\x1d\xba\xc7\x06\x02\x01\x23\x00\xc7\x06\x04\x01\x00\x01\xc7\x06\x06\x01\x2b\x00\xcb"; const char kvm_asm32_paged[] = "\x0f\x20\xc0\x0d\x00\x00\x00\x80\x0f\x22\xc0"; const char kvm_asm32_vm86[] = "\x66\xb8\xb8\x00\x0f\x00\xd8\xea\x00\x00\x00\x00\xd0\x00"; const char kvm_asm32_paged_vm86[] = "\x0f\x20\xc0\x0d\x00\x00\x00\x80\x0f\x22\xc0\x66\xb8\xb8\x00\x0f\x00\xd8\xea\x00\x00\x00\x00\xd0\x00"; const char kvm_asm64_enable_long[] = "\x0f\x20\xc0\x0d\x00\x00\x00\x80\x0f\x22\xc0\xea\xde\xc0\xad\x0b\x50\x00\x48\xc7\xc0\xd8\x00\x00\x00\x0f\x00\xd8"; const char kvm_asm64_init_vm[] = 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const char kvm_asm64_vm_exit[] = "\x48\xc7\xc3\x00\x44\x00\x00\x0f\x78\xda\x48\xc7\xc3\x02\x44\x00\x00\x0f\x78\xd9\x48\xc7\xc0\x00\x64\x00\x00\x0f\x78\xc0\x48\xc7\xc3\x1e\x68\x00\x00\x0f\x78\xdb\xf4"; const char kvm_asm64_cpl3[] = "\x0f\x20\xc0\x0d\x00\x00\x00\x80\x0f\x22\xc0\xea\xde\xc0\xad\x0b\x50\x00\x48\xc7\xc0\xd8\x00\x00\x00\x0f\x00\xd8\x48\xc7\xc0\x6b\x00\x00\x00\x8e\xd8\x8e\xc0\x8e\xe0\x8e\xe8\x48\xc7\xc4\x80\x0f\x00\x00\x48\xc7\x04\x24\x1d\xba\x00\x00\x48\xc7\x44\x24\x04\x63\x00\x00\x00\x48\xc7\x44\x24\x08\x80\x0f\x00\x00\x48\xc7\x44\x24\x0c\x6b\x00\x00\x00\xcb"; #define KVM_SMI _IO(KVMIO, 0xb7) struct tss16 { uint16_t prev; uint16_t sp0; uint16_t ss0; uint16_t sp1; uint16_t ss1; uint16_t sp2; uint16_t ss2; uint16_t ip; uint16_t flags; uint16_t ax; uint16_t cx; uint16_t dx; uint16_t bx; uint16_t sp; uint16_t bp; uint16_t si; uint16_t di; uint16_t es; uint16_t cs; uint16_t ss; uint16_t ds; uint16_t ldt; } __attribute__((packed)); struct tss32 { uint16_t prev, prevh; uint32_t sp0; uint16_t ss0, ss0h; uint32_t sp1; uint16_t ss1, ss1h; uint32_t sp2; uint16_t ss2, ss2h; uint32_t cr3; uint32_t ip; uint32_t flags; uint32_t ax; uint32_t cx; uint32_t dx; uint32_t bx; uint32_t sp; uint32_t bp; uint32_t si; uint32_t di; uint16_t es, esh; uint16_t cs, csh; uint16_t ss, ssh; uint16_t ds, dsh; uint16_t fs, fsh; uint16_t gs, gsh; uint16_t ldt, ldth; uint16_t trace; uint16_t io_bitmap; } __attribute__((packed)); struct tss64 { uint32_t reserved0; uint64_t rsp[3]; uint64_t reserved1; uint64_t ist[7]; uint64_t reserved2; uint16_t reserved3; uint16_t io_bitmap; } __attribute__((packed)); static void fill_segment_descriptor(uint64_t* dt, uint64_t* lt, struct kvm_segment* seg) { uint16_t index = seg->selector >> 3; uint64_t limit = seg->g ? seg->limit >> 12 : seg->limit; uint64_t sd = (limit & 0xffff) | (seg->base & 0xffffff) << 16 | (uint64_t)seg->type << 40 | (uint64_t)seg->s << 44 | (uint64_t)seg->dpl << 45 | (uint64_t)seg->present << 47 | (limit & 0xf0000ULL) << 48 | (uint64_t)seg->avl << 52 | (uint64_t)seg->l << 53 | (uint64_t)seg->db << 54 | (uint64_t)seg->g << 55 | (seg->base & 0xff000000ULL) << 56; dt[index] = sd; lt[index] = sd; } static void fill_segment_descriptor_dword(uint64_t* dt, uint64_t* lt, struct kvm_segment* seg) { fill_segment_descriptor(dt, lt, seg); uint16_t index = seg->selector >> 3; dt[index + 1] = 0; lt[index + 1] = 0; } static void setup_syscall_msrs(int cpufd, uint16_t sel_cs, uint16_t sel_cs_cpl3) { char buf[sizeof(struct kvm_msrs) + 5 * sizeof(struct kvm_msr_entry)]; memset(buf, 0, sizeof(buf)); struct kvm_msrs* msrs = (struct kvm_msrs*)buf; struct kvm_msr_entry* entries = msrs->entries; msrs->nmsrs = 5; entries[0].index = X86_MSR_IA32_SYSENTER_CS; entries[0].data = sel_cs; entries[1].index = X86_MSR_IA32_SYSENTER_ESP; entries[1].data = X86_ADDR_STACK0; entries[2].index = X86_MSR_IA32_SYSENTER_EIP; entries[2].data = X86_ADDR_VAR_SYSEXIT; entries[3].index = X86_MSR_IA32_STAR; entries[3].data = ((uint64_t)sel_cs << 32) | ((uint64_t)sel_cs_cpl3 << 48); entries[4].index = X86_MSR_IA32_LSTAR; entries[4].data = X86_ADDR_VAR_SYSRET; ioctl(cpufd, KVM_SET_MSRS, msrs); } static void setup_32bit_idt(struct kvm_sregs* sregs, char* host_mem, uintptr_t guest_mem) { sregs->idt.base = guest_mem + X86_ADDR_VAR_IDT; sregs->idt.limit = 0x1ff; uint64_t* idt = (uint64_t*)(host_mem + sregs->idt.base); for (int i = 0; i < 32; i++) { struct kvm_segment gate; gate.selector = i << 3; switch (i % 6) { case 0: gate.type = 6; gate.base = X86_SEL_CS16; break; case 1: gate.type = 7; gate.base = X86_SEL_CS16; break; case 2: gate.type = 3; gate.base = X86_SEL_TGATE16; break; case 3: gate.type = 14; gate.base = X86_SEL_CS32; break; case 4: gate.type = 15; gate.base = X86_SEL_CS32; break; case 5: gate.type = 11; gate.base = X86_SEL_TGATE32; break; } gate.limit = guest_mem + X86_ADDR_VAR_USER_CODE2; gate.present = 1; gate.dpl = 0; gate.s = 0; gate.g = 0; gate.db = 0; gate.l = 0; gate.avl = 0; fill_segment_descriptor(idt, idt, &gate); } } static void setup_64bit_idt(struct kvm_sregs* sregs, char* host_mem, uintptr_t guest_mem) { sregs->idt.base = guest_mem + X86_ADDR_VAR_IDT; sregs->idt.limit = 0x1ff; uint64_t* idt = (uint64_t*)(host_mem + sregs->idt.base); for (int i = 0; i < 32; i++) { struct kvm_segment gate; gate.selector = (i * 2) << 3; gate.type = (i & 1) ? 14 : 15; gate.base = X86_SEL_CS64; gate.limit = guest_mem + X86_ADDR_VAR_USER_CODE2; gate.present = 1; gate.dpl = 0; gate.s = 0; gate.g = 0; gate.db = 0; gate.l = 0; gate.avl = 0; fill_segment_descriptor_dword(idt, idt, &gate); } } #define MEM_REGION_FLAG_USER_CODE (1 << 0) #define MEM_REGION_FLAG_DIRTY_LOG (1 << 1) #define MEM_REGION_FLAG_READONLY (1 << 2) #define MEM_REGION_FLAG_EXECUTOR_CODE (1 << 3) #define MEM_REGION_FLAG_GPA0 (1 << 5) #define MEM_REGION_FLAG_NO_HOST_MEM (1 << 6) struct mem_region { uint64_t gpa; int pages; uint32_t flags; }; static const struct mem_region syzos_mem_regions[] = { {X86_SYZOS_ADDR_ZERO, 48, MEM_REGION_FLAG_GPA0}, {X86_SYZOS_ADDR_SMRAM, 10, 0}, {X86_SYZOS_ADDR_EXIT, 1, MEM_REGION_FLAG_NO_HOST_MEM}, {X86_SYZOS_ADDR_DIRTY_PAGES, 2, MEM_REGION_FLAG_DIRTY_LOG}, {X86_SYZOS_ADDR_USER_CODE, KVM_MAX_VCPU, MEM_REGION_FLAG_READONLY | MEM_REGION_FLAG_USER_CODE}, {SYZOS_ADDR_EXECUTOR_CODE, 4, MEM_REGION_FLAG_READONLY | MEM_REGION_FLAG_EXECUTOR_CODE}, {X86_SYZOS_ADDR_SCRATCH_CODE, 1, 0}, {X86_SYZOS_ADDR_STACK_BOTTOM, 1, 0}, {X86_SYZOS_PER_VCPU_REGIONS_BASE, (KVM_MAX_VCPU * X86_SYZOS_L1_VCPU_REGION_SIZE) / KVM_PAGE_SIZE, 0}, {X86_SYZOS_ADDR_IOAPIC, 1, 0}, }; struct kvm_syz_vm { int vmfd; int next_cpu_id; void* host_mem; size_t total_pages; void* user_text; void* gpa0_mem; }; #define X86_NUM_IDT_ENTRIES 256 static void syzos_setup_idt(struct kvm_syz_vm* vm, struct kvm_sregs* sregs) { sregs->idt.base = X86_SYZOS_ADDR_VAR_IDT; sregs->idt.limit = (X86_NUM_IDT_ENTRIES * sizeof(struct idt_entry_64)) - 1; volatile struct idt_entry_64* idt = (volatile struct idt_entry_64*)((uint64_t)vm->host_mem + sregs->idt.base); uint64_t handler_addr = executor_fn_guest_addr(dummy_null_handler); for (int i = 0; i < X86_NUM_IDT_ENTRIES; i++) { idt[i].offset_low = (uint16_t)(handler_addr & 0xFFFF); idt[i].selector = X86_SYZOS_SEL_CODE; idt[i].ist = 0; idt[i].type_attr = 0x8E; idt[i].offset_mid = (uint16_t)((handler_addr >> 16) & 0xFFFF); idt[i].offset_high = (uint32_t)((handler_addr >> 32) & 0xFFFFFFFF); idt[i].reserved = 0; } } struct kvm_text { uintptr_t typ; const void* text; uintptr_t size; }; struct kvm_opt { uint64_t typ; uint64_t val; }; #define PAGE_MASK GENMASK_ULL(51, 12) typedef struct { uint64_t next_page; uint64_t last_page; } page_alloc_t; static uint64_t pg_alloc(page_alloc_t* alloc) { if (alloc->next_page >= alloc->last_page) exit(1); uint64_t page = alloc->next_page; alloc->next_page += KVM_PAGE_SIZE; return page; } static void map_4k_page(uint64_t host_mem, page_alloc_t* alloc, uint64_t gpa) { uint64_t* pml4 = (uint64_t*)(host_mem + X86_SYZOS_ADDR_PML4); uint64_t pml4_idx = (gpa >> 39) & 0x1FF; if (pml4[pml4_idx] == 0) pml4[pml4_idx] = X86_PDE64_PRESENT | X86_PDE64_RW | pg_alloc(alloc); uint64_t* pdpt = (uint64_t*)(host_mem + (pml4[pml4_idx] & PAGE_MASK)); uint64_t pdpt_idx = (gpa >> 30) & 0x1FF; if (pdpt[pdpt_idx] == 0) pdpt[pdpt_idx] = X86_PDE64_PRESENT | X86_PDE64_RW | pg_alloc(alloc); uint64_t* pd = (uint64_t*)(host_mem + (pdpt[pdpt_idx] & PAGE_MASK)); uint64_t pd_idx = (gpa >> 21) & 0x1FF; if (pd[pd_idx] == 0) pd[pd_idx] = X86_PDE64_PRESENT | X86_PDE64_RW | pg_alloc(alloc); uint64_t* pt = (uint64_t*)(host_mem + (pd[pd_idx] & PAGE_MASK)); uint64_t pt_idx = (gpa >> 12) & 0x1FF; pt[pt_idx] = (gpa & PAGE_MASK) | X86_PDE64_PRESENT | X86_PDE64_RW; } static int map_4k_region(uint64_t host_mem, page_alloc_t* alloc, uint64_t gpa_start, int num_pages) { for (int i = 0; i < num_pages; i++) map_4k_page(host_mem, alloc, gpa_start + (i * KVM_PAGE_SIZE)); return num_pages; } static void setup_pg_table(struct kvm_syz_vm* vm) { int total = vm->total_pages; uint64_t host_mem = (uint64_t)vm->gpa0_mem; page_alloc_t alloc = {.next_page = X86_SYZOS_ADDR_PT_POOL, .last_page = X86_SYZOS_ADDR_PT_POOL + 32 * KVM_PAGE_SIZE}; for (uint64_t i = 0; i < (alloc.last_page - alloc.next_page); i += KVM_PAGE_SIZE) memset((void*)(host_mem + alloc.next_page + i), 0, KVM_PAGE_SIZE); for (size_t i = 0; i < sizeof(syzos_mem_regions) / sizeof(syzos_mem_regions[0]); i++) total -= map_4k_region(host_mem, &alloc, syzos_mem_regions[i].gpa, syzos_mem_regions[i].pages); map_4k_region(host_mem, &alloc, X86_SYZOS_ADDR_UNUSED, total); } struct gdt_entry { uint16_t limit_low; uint16_t base_low; uint8_t base_mid; uint8_t access; uint8_t limit_high_and_flags; uint8_t base_high; } __attribute__((packed)); static void setup_gdt_64(struct gdt_entry* gdt) { gdt[0] = (struct gdt_entry){0}; gdt[X86_SYZOS_SEL_CODE >> 3] = (struct gdt_entry){ .limit_low = 0xFFFF, .base_low = 0, .base_mid = 0, .access = 0x9A, .limit_high_and_flags = 0xAF, .base_high = 0}; gdt[X86_SYZOS_SEL_DATA >> 3] = (struct gdt_entry){ .limit_low = 0xFFFF, .base_low = (uint16_t)(X86_SYZOS_ADDR_VAR_TSS & 0xFFFF), .base_mid = (uint8_t)((X86_SYZOS_ADDR_VAR_TSS >> 16) & 0xFF), .access = 0x92, .limit_high_and_flags = 0xCF, .base_high = (uint8_t)((X86_SYZOS_ADDR_VAR_TSS >> 24) & 0xFF)}; gdt[X86_SYZOS_SEL_TSS64 >> 3] = (struct gdt_entry){ .limit_low = 0x67, .base_low = 0, .base_mid = 0, .access = 0x89, .limit_high_and_flags = 0x00, .base_high = 0}; } static void setup_gdt_ldt_pg(struct kvm_syz_vm* vm, int cpufd) { struct kvm_sregs sregs; ioctl(cpufd, KVM_GET_SREGS, &sregs); sregs.gdt.base = X86_SYZOS_ADDR_GDT; sregs.gdt.limit = 5 * sizeof(struct gdt_entry) - 1; struct gdt_entry* gdt = (struct gdt_entry*)((uint64_t)vm->host_mem + sregs.gdt.base); struct kvm_segment seg_cs64; memset(&seg_cs64, 0, sizeof(seg_cs64)); seg_cs64.selector = X86_SYZOS_SEL_CODE; seg_cs64.type = 11; seg_cs64.base = 0; seg_cs64.limit = 0xFFFFFFFFu; seg_cs64.present = 1; seg_cs64.s = 1; seg_cs64.g = 1; seg_cs64.l = 1; sregs.cs = seg_cs64; struct kvm_segment seg_ds64; memset(&seg_ds64, 0, sizeof(struct kvm_segment)); seg_ds64.selector = X86_SYZOS_SEL_DATA; seg_ds64.type = 3; seg_ds64.limit = 0xFFFFFFFFu; seg_ds64.present = 1; seg_ds64.s = 1; seg_ds64.g = 1; seg_ds64.db = 1; sregs.ds = seg_ds64; sregs.es = seg_ds64; sregs.fs = seg_ds64; sregs.gs = seg_ds64; sregs.ss = seg_ds64; struct kvm_segment seg_tr; memset(&seg_tr, 0, sizeof(seg_tr)); seg_tr.selector = X86_SYZOS_SEL_TSS64; seg_tr.type = 11; seg_tr.base = X86_SYZOS_ADDR_VAR_TSS; seg_tr.limit = 0x67; seg_tr.present = 1; seg_tr.s = 0; sregs.tr = seg_tr; volatile uint8_t* l1_tss = (volatile uint8_t*)((uint64_t)vm->host_mem + X86_SYZOS_ADDR_VAR_TSS); memset((void*)l1_tss, 0, 104); *(volatile uint64_t*)(l1_tss + 4) = X86_SYZOS_ADDR_STACK0; setup_gdt_64(gdt); syzos_setup_idt(vm, &sregs); setup_pg_table(vm); sregs.cr0 = X86_CR0_PE | X86_CR0_NE | X86_CR0_PG; sregs.cr4 |= X86_CR4_PAE | X86_CR4_OSFXSR; sregs.efer |= (X86_EFER_LME | X86_EFER_LMA | X86_EFER_NXE); sregs.cr3 = X86_ADDR_PML4; ioctl(cpufd, KVM_SET_SREGS, &sregs); } static void setup_cpuid(int cpufd) { int kvmfd = open("/dev/kvm", O_RDWR); char buf[sizeof(struct kvm_cpuid2) + 128 * sizeof(struct kvm_cpuid_entry2)]; memset(buf, 0, sizeof(buf)); struct kvm_cpuid2* cpuid = (struct kvm_cpuid2*)buf; cpuid->nent = 128; ioctl(kvmfd, KVM_GET_SUPPORTED_CPUID, cpuid); ioctl(cpufd, KVM_SET_CPUID2, cpuid); close(kvmfd); } #define KVM_SETUP_PAGING (1 << 0) #define KVM_SETUP_PAE (1 << 1) #define KVM_SETUP_PROTECTED (1 << 2) #define KVM_SETUP_CPL3 (1 << 3) #define KVM_SETUP_VIRT86 (1 << 4) #define KVM_SETUP_SMM (1 << 5) #define KVM_SETUP_VM (1 << 6) static volatile long syz_kvm_setup_cpu(volatile long a0, volatile long a1, volatile long a2, volatile long a3, volatile long a4, volatile long a5, volatile long a6, volatile long a7) { const int vmfd = a0; const int cpufd = a1; char* const host_mem = (char*)a2; const struct kvm_text* const text_array_ptr = (struct kvm_text*)a3; const uintptr_t text_count = a4; const uintptr_t flags = a5; const struct kvm_opt* const opt_array_ptr = (struct kvm_opt*)a6; uintptr_t opt_count = a7; const uintptr_t page_size = 4 << 10; const uintptr_t ioapic_page = 10; const uintptr_t guest_mem_size = 24 * page_size; const uintptr_t guest_mem = 0; (void)text_count; int text_type = text_array_ptr[0].typ; const void* text = text_array_ptr[0].text; uintptr_t text_size = text_array_ptr[0].size; for (uintptr_t i = 0; i < guest_mem_size / page_size; i++) { struct kvm_userspace_memory_region memreg; memreg.slot = i; memreg.flags = 0; memreg.guest_phys_addr = guest_mem + i * page_size; if (i == ioapic_page) memreg.guest_phys_addr = 0xfec00000; memreg.memory_size = page_size; memreg.userspace_addr = (uintptr_t)host_mem + i * page_size; ioctl(vmfd, KVM_SET_USER_MEMORY_REGION, &memreg); } struct kvm_userspace_memory_region memreg; memreg.slot = 1 + (1 << 16); memreg.flags = 0; memreg.guest_phys_addr = 0x30000; memreg.memory_size = 64 << 10; memreg.userspace_addr = (uintptr_t)host_mem; ioctl(vmfd, KVM_SET_USER_MEMORY_REGION, &memreg); struct kvm_sregs sregs; if (ioctl(cpufd, KVM_GET_SREGS, &sregs)) return -1; struct kvm_regs regs; memset(®s, 0, sizeof(regs)); regs.rip = guest_mem + X86_ADDR_TEXT; regs.rsp = X86_ADDR_STACK0; sregs.gdt.base = guest_mem + X86_ADDR_GDT; sregs.gdt.limit = 256 * sizeof(uint64_t) - 1; uint64_t* gdt = (uint64_t*)(host_mem + sregs.gdt.base); struct kvm_segment seg_ldt; memset(&seg_ldt, 0, sizeof(seg_ldt)); seg_ldt.selector = X86_SEL_LDT; seg_ldt.type = 2; seg_ldt.base = guest_mem + X86_ADDR_LDT; seg_ldt.limit = 256 * sizeof(uint64_t) - 1; seg_ldt.present = 1; seg_ldt.dpl = 0; seg_ldt.s = 0; seg_ldt.g = 0; seg_ldt.db = 1; seg_ldt.l = 0; sregs.ldt = seg_ldt; uint64_t* ldt = (uint64_t*)(host_mem + sregs.ldt.base); struct kvm_segment seg_cs16; memset(&seg_cs16, 0, sizeof(seg_cs16)); seg_cs16.selector = X86_SEL_CS16; seg_cs16.type = 11; seg_cs16.base = 0; seg_cs16.limit = 0xfffff; seg_cs16.present = 1; seg_cs16.dpl = 0; seg_cs16.s = 1; seg_cs16.g = 0; seg_cs16.db = 0; seg_cs16.l = 0; struct kvm_segment seg_ds16 = seg_cs16; seg_ds16.selector = X86_SEL_DS16; seg_ds16.type = 3; struct kvm_segment seg_cs16_cpl3 = seg_cs16; seg_cs16_cpl3.selector = X86_SEL_CS16_CPL3; seg_cs16_cpl3.dpl = 3; struct kvm_segment seg_ds16_cpl3 = seg_ds16; seg_ds16_cpl3.selector = X86_SEL_DS16_CPL3; seg_ds16_cpl3.dpl = 3; struct kvm_segment seg_cs32 = seg_cs16; seg_cs32.selector = X86_SEL_CS32; seg_cs32.db = 1; struct kvm_segment seg_ds32 = seg_ds16; seg_ds32.selector = X86_SEL_DS32; seg_ds32.db = 1; struct kvm_segment seg_cs32_cpl3 = seg_cs32; seg_cs32_cpl3.selector = X86_SEL_CS32_CPL3; seg_cs32_cpl3.dpl = 3; struct kvm_segment seg_ds32_cpl3 = seg_ds32; seg_ds32_cpl3.selector = X86_SEL_DS32_CPL3; seg_ds32_cpl3.dpl = 3; struct kvm_segment seg_cs64 = seg_cs16; seg_cs64.selector = X86_SEL_CS64; seg_cs64.l = 1; struct kvm_segment seg_ds64 = seg_ds32; seg_ds64.selector = X86_SEL_DS64; struct kvm_segment seg_cs64_cpl3 = seg_cs64; seg_cs64_cpl3.selector = X86_SEL_CS64_CPL3; seg_cs64_cpl3.dpl = 3; struct kvm_segment seg_ds64_cpl3 = seg_ds64; seg_ds64_cpl3.selector = X86_SEL_DS64_CPL3; seg_ds64_cpl3.dpl = 3; struct kvm_segment seg_tss32; memset(&seg_tss32, 0, sizeof(seg_tss32)); seg_tss32.selector = X86_SEL_TSS32; seg_tss32.type = 9; seg_tss32.base = X86_ADDR_VAR_TSS32; seg_tss32.limit = 0x1ff; seg_tss32.present = 1; seg_tss32.dpl = 0; seg_tss32.s = 0; seg_tss32.g = 0; seg_tss32.db = 0; seg_tss32.l = 0; struct kvm_segment seg_tss32_2 = seg_tss32; seg_tss32_2.selector = X86_SEL_TSS32_2; seg_tss32_2.base = X86_ADDR_VAR_TSS32_2; struct kvm_segment seg_tss32_cpl3 = seg_tss32; seg_tss32_cpl3.selector = X86_SEL_TSS32_CPL3; seg_tss32_cpl3.base = X86_ADDR_VAR_TSS32_CPL3; struct kvm_segment seg_tss32_vm86 = seg_tss32; seg_tss32_vm86.selector = X86_SEL_TSS32_VM86; seg_tss32_vm86.base = X86_ADDR_VAR_TSS32_VM86; struct kvm_segment seg_tss16 = seg_tss32; seg_tss16.selector = X86_SEL_TSS16; seg_tss16.base = X86_ADDR_VAR_TSS16; seg_tss16.limit = 0xff; seg_tss16.type = 1; struct kvm_segment seg_tss16_2 = seg_tss16; seg_tss16_2.selector = X86_SEL_TSS16_2; seg_tss16_2.base = X86_ADDR_VAR_TSS16_2; seg_tss16_2.dpl = 0; struct kvm_segment seg_tss16_cpl3 = seg_tss16; seg_tss16_cpl3.selector = X86_SEL_TSS16_CPL3; seg_tss16_cpl3.base = X86_ADDR_VAR_TSS16_CPL3; seg_tss16_cpl3.dpl = 3; struct kvm_segment seg_tss64 = seg_tss32; seg_tss64.selector = X86_SEL_TSS64; seg_tss64.base = X86_ADDR_VAR_TSS64; seg_tss64.limit = 0x1ff; struct kvm_segment seg_tss64_cpl3 = seg_tss64; seg_tss64_cpl3.selector = X86_SEL_TSS64_CPL3; seg_tss64_cpl3.base = X86_ADDR_VAR_TSS64_CPL3; seg_tss64_cpl3.dpl = 3; struct kvm_segment seg_cgate16; memset(&seg_cgate16, 0, sizeof(seg_cgate16)); seg_cgate16.selector = X86_SEL_CGATE16; seg_cgate16.type = 4; seg_cgate16.base = X86_SEL_CS16 | (2 << 16); seg_cgate16.limit = X86_ADDR_VAR_USER_CODE2; seg_cgate16.present = 1; seg_cgate16.dpl = 0; seg_cgate16.s = 0; seg_cgate16.g = 0; seg_cgate16.db = 0; seg_cgate16.l = 0; seg_cgate16.avl = 0; struct kvm_segment seg_tgate16 = seg_cgate16; seg_tgate16.selector = X86_SEL_TGATE16; seg_tgate16.type = 3; seg_cgate16.base = X86_SEL_TSS16_2; seg_tgate16.limit = 0; struct kvm_segment seg_cgate32 = seg_cgate16; seg_cgate32.selector = X86_SEL_CGATE32; seg_cgate32.type = 12; seg_cgate32.base = X86_SEL_CS32 | (2 << 16); struct kvm_segment seg_tgate32 = seg_cgate32; seg_tgate32.selector = X86_SEL_TGATE32; seg_tgate32.type = 11; seg_tgate32.base = X86_SEL_TSS32_2; seg_tgate32.limit = 0; struct kvm_segment seg_cgate64 = seg_cgate16; seg_cgate64.selector = X86_SEL_CGATE64; seg_cgate64.type = 12; seg_cgate64.base = X86_SEL_CS64; int kvmfd = open("/dev/kvm", O_RDWR); char buf[sizeof(struct kvm_cpuid2) + 128 * sizeof(struct kvm_cpuid_entry2)]; memset(buf, 0, sizeof(buf)); struct kvm_cpuid2* cpuid = (struct kvm_cpuid2*)buf; cpuid->nent = 128; ioctl(kvmfd, KVM_GET_SUPPORTED_CPUID, cpuid); ioctl(cpufd, KVM_SET_CPUID2, cpuid); close(kvmfd); const char* text_prefix = 0; int text_prefix_size = 0; char* host_text = host_mem + X86_ADDR_TEXT; if (text_type == 8) { if (flags & KVM_SETUP_SMM) { if (flags & KVM_SETUP_PROTECTED) { sregs.cs = seg_cs16; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds16; sregs.cr0 |= X86_CR0_PE; } else { sregs.cs.selector = 0; sregs.cs.base = 0; } *(host_mem + X86_ADDR_TEXT) = 0xf4; host_text = host_mem + 0x8000; ioctl(cpufd, KVM_SMI, 0); } else if (flags & KVM_SETUP_VIRT86) { sregs.cs = seg_cs32; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32; sregs.cr0 |= X86_CR0_PE; sregs.efer |= X86_EFER_SCE; setup_syscall_msrs(cpufd, X86_SEL_CS32, X86_SEL_CS32_CPL3); setup_32bit_idt(&sregs, host_mem, guest_mem); if (flags & KVM_SETUP_PAGING) { uint64_t pd_addr = guest_mem + X86_ADDR_PD; uint64_t* pd = (uint64_t*)(host_mem + X86_ADDR_PD); pd[0] = X86_PDE32_PRESENT | X86_PDE32_RW | X86_PDE32_USER | X86_PDE32_PS; sregs.cr3 = pd_addr; sregs.cr4 |= X86_CR4_PSE; text_prefix = kvm_asm32_paged_vm86; text_prefix_size = sizeof(kvm_asm32_paged_vm86) - 1; } else { text_prefix = kvm_asm32_vm86; text_prefix_size = sizeof(kvm_asm32_vm86) - 1; } } else { sregs.cs.selector = 0; sregs.cs.base = 0; } } else if (text_type == 16) { if (flags & KVM_SETUP_CPL3) { sregs.cs = seg_cs16; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds16; text_prefix = kvm_asm16_cpl3; text_prefix_size = sizeof(kvm_asm16_cpl3) - 1; } else { sregs.cr0 |= X86_CR0_PE; sregs.cs = seg_cs16; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds16; } } else if (text_type == 32) { sregs.cr0 |= X86_CR0_PE; sregs.efer |= X86_EFER_SCE; setup_syscall_msrs(cpufd, X86_SEL_CS32, X86_SEL_CS32_CPL3); setup_32bit_idt(&sregs, host_mem, guest_mem); if (flags & KVM_SETUP_SMM) { sregs.cs = seg_cs32; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32; *(host_mem + X86_ADDR_TEXT) = 0xf4; host_text = host_mem + 0x8000; ioctl(cpufd, KVM_SMI, 0); } else if (flags & KVM_SETUP_PAGING) { sregs.cs = seg_cs32; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32; uint64_t pd_addr = guest_mem + X86_ADDR_PD; uint64_t* pd = (uint64_t*)(host_mem + X86_ADDR_PD); pd[0] = X86_PDE32_PRESENT | X86_PDE32_RW | X86_PDE32_USER | X86_PDE32_PS; sregs.cr3 = pd_addr; sregs.cr4 |= X86_CR4_PSE; text_prefix = kvm_asm32_paged; text_prefix_size = sizeof(kvm_asm32_paged) - 1; } else if (flags & KVM_SETUP_CPL3) { sregs.cs = seg_cs32_cpl3; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32_cpl3; } else { sregs.cs = seg_cs32; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32; } } else { sregs.efer |= X86_EFER_LME | X86_EFER_SCE; sregs.cr0 |= X86_CR0_PE; setup_syscall_msrs(cpufd, X86_SEL_CS64, X86_SEL_CS64_CPL3); setup_64bit_idt(&sregs, host_mem, guest_mem); sregs.cs = seg_cs32; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32; uint64_t pml4_addr = guest_mem + X86_ADDR_PML4; uint64_t* pml4 = (uint64_t*)(host_mem + X86_ADDR_PML4); uint64_t pdpt_addr = guest_mem + X86_ADDR_PDP; uint64_t* pdpt = (uint64_t*)(host_mem + X86_ADDR_PDP); uint64_t pd_addr = guest_mem + X86_ADDR_PD; uint64_t* pd = (uint64_t*)(host_mem + X86_ADDR_PD); pml4[0] = X86_PDE64_PRESENT | X86_PDE64_RW | X86_PDE64_USER | pdpt_addr; pdpt[0] = X86_PDE64_PRESENT | X86_PDE64_RW | X86_PDE64_USER | pd_addr; pd[0] = X86_PDE64_PRESENT | X86_PDE64_RW | X86_PDE64_USER | X86_PDE64_PS; sregs.cr3 = pml4_addr; sregs.cr4 |= X86_CR4_PAE; if (flags & KVM_SETUP_VM) { sregs.cr0 |= X86_CR0_NE; *((uint64_t*)(host_mem + X86_ADDR_VAR_VMXON_PTR)) = X86_ADDR_VAR_VMXON; *((uint64_t*)(host_mem + X86_ADDR_VAR_VMCS_PTR)) = X86_ADDR_VAR_VMCS; memcpy(host_mem + X86_ADDR_VAR_VMEXIT_CODE, kvm_asm64_vm_exit, sizeof(kvm_asm64_vm_exit) - 1); *((uint64_t*)(host_mem + X86_ADDR_VAR_VMEXIT_PTR)) = X86_ADDR_VAR_VMEXIT_CODE; text_prefix = kvm_asm64_init_vm; text_prefix_size = sizeof(kvm_asm64_init_vm) - 1; } else if (flags & KVM_SETUP_CPL3) { text_prefix = kvm_asm64_cpl3; text_prefix_size = sizeof(kvm_asm64_cpl3) - 1; } else { text_prefix = kvm_asm64_enable_long; text_prefix_size = sizeof(kvm_asm64_enable_long) - 1; } } struct tss16 tss16; memset(&tss16, 0, sizeof(tss16)); tss16.ss0 = tss16.ss1 = tss16.ss2 = X86_SEL_DS16; tss16.sp0 = tss16.sp1 = tss16.sp2 = X86_ADDR_STACK0; tss16.ip = X86_ADDR_VAR_USER_CODE2; tss16.flags = (1 << 1); tss16.cs = X86_SEL_CS16; tss16.es = tss16.ds = tss16.ss = X86_SEL_DS16; tss16.ldt = X86_SEL_LDT; struct tss16* tss16_addr = (struct tss16*)(host_mem + seg_tss16_2.base); memcpy(tss16_addr, &tss16, sizeof(tss16)); memset(&tss16, 0, sizeof(tss16)); tss16.ss0 = tss16.ss1 = tss16.ss2 = X86_SEL_DS16; tss16.sp0 = tss16.sp1 = tss16.sp2 = X86_ADDR_STACK0; tss16.ip = X86_ADDR_VAR_USER_CODE2; tss16.flags = (1 << 1); tss16.cs = X86_SEL_CS16_CPL3; tss16.es = tss16.ds = tss16.ss = X86_SEL_DS16_CPL3; tss16.ldt = X86_SEL_LDT; struct tss16* tss16_cpl3_addr = (struct tss16*)(host_mem + seg_tss16_cpl3.base); memcpy(tss16_cpl3_addr, &tss16, sizeof(tss16)); struct tss32 tss32; memset(&tss32, 0, sizeof(tss32)); tss32.ss0 = tss32.ss1 = tss32.ss2 = X86_SEL_DS32; tss32.sp0 = tss32.sp1 = tss32.sp2 = X86_ADDR_STACK0; tss32.ip = X86_ADDR_VAR_USER_CODE; tss32.flags = (1 << 1) | (1 << 17); tss32.ldt = X86_SEL_LDT; tss32.cr3 = sregs.cr3; tss32.io_bitmap = offsetof(struct tss32, io_bitmap); struct tss32* tss32_addr = (struct tss32*)(host_mem + seg_tss32_vm86.base); memcpy(tss32_addr, &tss32, sizeof(tss32)); memset(&tss32, 0, sizeof(tss32)); tss32.ss0 = tss32.ss1 = tss32.ss2 = X86_SEL_DS32; tss32.sp0 = tss32.sp1 = tss32.sp2 = X86_ADDR_STACK0; tss32.ip = X86_ADDR_VAR_USER_CODE; tss32.flags = (1 << 1); tss32.cr3 = sregs.cr3; tss32.es = tss32.ds = tss32.ss = tss32.gs = tss32.fs = X86_SEL_DS32; tss32.cs = X86_SEL_CS32; tss32.ldt = X86_SEL_LDT; tss32.cr3 = sregs.cr3; tss32.io_bitmap = offsetof(struct tss32, io_bitmap); struct tss32* tss32_cpl3_addr = (struct tss32*)(host_mem + seg_tss32_2.base); memcpy(tss32_cpl3_addr, &tss32, sizeof(tss32)); struct tss64 tss64; memset(&tss64, 0, sizeof(tss64)); tss64.rsp[0] = X86_ADDR_STACK0; tss64.rsp[1] = X86_ADDR_STACK0; tss64.rsp[2] = X86_ADDR_STACK0; tss64.io_bitmap = offsetof(struct tss64, io_bitmap); struct tss64* tss64_addr = (struct tss64*)(host_mem + seg_tss64.base); memcpy(tss64_addr, &tss64, sizeof(tss64)); memset(&tss64, 0, sizeof(tss64)); tss64.rsp[0] = X86_ADDR_STACK0; tss64.rsp[1] = X86_ADDR_STACK0; tss64.rsp[2] = X86_ADDR_STACK0; tss64.io_bitmap = offsetof(struct tss64, io_bitmap); struct tss64* tss64_cpl3_addr = (struct tss64*)(host_mem + seg_tss64_cpl3.base); memcpy(tss64_cpl3_addr, &tss64, sizeof(tss64)); if (text_size > 1000) text_size = 1000; if (text_prefix) { memcpy(host_text, text_prefix, text_prefix_size); void* patch = memmem(host_text, text_prefix_size, "\xde\xc0\xad\x0b", 4); if (patch) *((uint32_t*)patch) = guest_mem + X86_ADDR_TEXT + ((char*)patch - host_text) + 6; uint16_t magic = X86_PREFIX_SIZE; patch = memmem(host_text, text_prefix_size, &magic, sizeof(magic)); if (patch) *((uint16_t*)patch) = guest_mem + X86_ADDR_TEXT + text_prefix_size; } memcpy((void*)(host_text + text_prefix_size), text, text_size); *(host_text + text_prefix_size + text_size) = 0xf4; memcpy(host_mem + X86_ADDR_VAR_USER_CODE, text, text_size); *(host_mem + X86_ADDR_VAR_USER_CODE + text_size) = 0xf4; *(host_mem + X86_ADDR_VAR_HLT) = 0xf4; memcpy(host_mem + X86_ADDR_VAR_SYSRET, "\x0f\x07\xf4", 3); memcpy(host_mem + X86_ADDR_VAR_SYSEXIT, "\x0f\x35\xf4", 3); *(uint64_t*)(host_mem + X86_ADDR_VAR_VMWRITE_FLD) = 0; *(uint64_t*)(host_mem + X86_ADDR_VAR_VMWRITE_VAL) = 0; if (opt_count > 2) opt_count = 2; for (uintptr_t i = 0; i < opt_count; i++) { uint64_t typ = opt_array_ptr[i].typ; uint64_t val = opt_array_ptr[i].val; switch (typ % 9) { case 0: sregs.cr0 ^= val & (X86_CR0_MP | X86_CR0_EM | X86_CR0_ET | X86_CR0_NE | X86_CR0_WP | X86_CR0_AM | X86_CR0_NW | X86_CR0_CD); break; case 1: sregs.cr4 ^= val & (X86_CR4_VME | X86_CR4_PVI | X86_CR4_TSD | X86_CR4_DE | X86_CR4_MCE | X86_CR4_PGE | X86_CR4_PCE | X86_CR4_OSFXSR | X86_CR4_OSXMMEXCPT | X86_CR4_UMIP | X86_CR4_VMXE | X86_CR4_SMXE | X86_CR4_FSGSBASE | X86_CR4_PCIDE | X86_CR4_OSXSAVE | X86_CR4_SMEP | X86_CR4_SMAP | X86_CR4_PKE); break; case 2: sregs.efer ^= val & (X86_EFER_SCE | X86_EFER_NXE | X86_EFER_SVME | X86_EFER_LMSLE | X86_EFER_FFXSR | X86_EFER_TCE); break; case 3: val &= ((1 << 8) | (1 << 9) | (1 << 10) | (1 << 12) | (1 << 13) | (1 << 14) | (1 << 15) | (1 << 18) | (1 << 19) | (1 << 20) | (1 << 21)); regs.rflags ^= val; tss16_addr->flags ^= val; tss16_cpl3_addr->flags ^= val; tss32_addr->flags ^= val; tss32_cpl3_addr->flags ^= val; break; case 4: seg_cs16.type = val & 0xf; seg_cs32.type = val & 0xf; seg_cs64.type = val & 0xf; break; case 5: seg_cs16_cpl3.type = val & 0xf; seg_cs32_cpl3.type = val & 0xf; seg_cs64_cpl3.type = val & 0xf; break; case 6: seg_ds16.type = val & 0xf; seg_ds32.type = val & 0xf; seg_ds64.type = val & 0xf; break; case 7: seg_ds16_cpl3.type = val & 0xf; seg_ds32_cpl3.type = val & 0xf; seg_ds64_cpl3.type = val & 0xf; break; case 8: *(uint64_t*)(host_mem + X86_ADDR_VAR_VMWRITE_FLD) = (val & 0xffff); *(uint64_t*)(host_mem + X86_ADDR_VAR_VMWRITE_VAL) = (val >> 16); break; default: exit(1); } } regs.rflags |= 2; fill_segment_descriptor(gdt, ldt, &seg_ldt); fill_segment_descriptor(gdt, ldt, &seg_cs16); fill_segment_descriptor(gdt, ldt, &seg_ds16); fill_segment_descriptor(gdt, ldt, &seg_cs16_cpl3); fill_segment_descriptor(gdt, ldt, &seg_ds16_cpl3); fill_segment_descriptor(gdt, ldt, &seg_cs32); fill_segment_descriptor(gdt, ldt, &seg_ds32); fill_segment_descriptor(gdt, ldt, &seg_cs32_cpl3); fill_segment_descriptor(gdt, ldt, &seg_ds32_cpl3); fill_segment_descriptor(gdt, ldt, &seg_cs64); fill_segment_descriptor(gdt, ldt, &seg_ds64); fill_segment_descriptor(gdt, ldt, &seg_cs64_cpl3); fill_segment_descriptor(gdt, ldt, &seg_ds64_cpl3); fill_segment_descriptor(gdt, ldt, &seg_tss32); fill_segment_descriptor(gdt, ldt, &seg_tss32_2); fill_segment_descriptor(gdt, ldt, &seg_tss32_cpl3); fill_segment_descriptor(gdt, ldt, &seg_tss32_vm86); fill_segment_descriptor(gdt, ldt, &seg_tss16); fill_segment_descriptor(gdt, ldt, &seg_tss16_2); fill_segment_descriptor(gdt, ldt, &seg_tss16_cpl3); fill_segment_descriptor_dword(gdt, ldt, &seg_tss64); fill_segment_descriptor_dword(gdt, ldt, &seg_tss64_cpl3); fill_segment_descriptor(gdt, ldt, &seg_cgate16); fill_segment_descriptor(gdt, ldt, &seg_tgate16); fill_segment_descriptor(gdt, ldt, &seg_cgate32); fill_segment_descriptor(gdt, ldt, &seg_tgate32); fill_segment_descriptor_dword(gdt, ldt, &seg_cgate64); if (ioctl(cpufd, KVM_SET_SREGS, &sregs)) return -1; if (ioctl(cpufd, KVM_SET_REGS, ®s)) return -1; return 0; } #define RFLAGS_1_BIT (1ULL << 1) #define RFLAGS_IF_BIT (1ULL << 9) static void reset_cpu_regs(int cpufd, int cpu_id, size_t text_size) { struct kvm_regs regs; memset(®s, 0, sizeof(regs)); regs.rflags |= RFLAGS_1_BIT | RFLAGS_IF_BIT; regs.rip = executor_fn_guest_addr(guest_main); regs.rsp = X86_SYZOS_ADDR_STACK0; regs.rdi = text_size; regs.rsi = cpu_id; ioctl(cpufd, KVM_SET_REGS, ®s); } static void install_user_code(struct kvm_syz_vm* vm, int cpufd, int cpu_id, const void* text, size_t text_size) { if ((cpu_id < 0) || (cpu_id >= KVM_MAX_VCPU)) return; if (text_size > KVM_PAGE_SIZE) text_size = KVM_PAGE_SIZE; void* target = (void*)((uint64_t)vm->user_text + (KVM_PAGE_SIZE * cpu_id)); memcpy(target, text, text_size); setup_gdt_ldt_pg(vm, cpufd); setup_cpuid(cpufd); reset_cpu_regs(cpufd, cpu_id, text_size); } struct addr_size { void* addr; size_t size; }; static struct addr_size alloc_guest_mem(struct addr_size* free, size_t size) { struct addr_size ret = {.addr = NULL, .size = 0}; if (free->size < size) return ret; ret.addr = free->addr; ret.size = size; free->addr = (void*)((char*)free->addr + size); free->size -= size; return ret; } static void vm_set_user_memory_region(int vmfd, uint32_t slot, uint32_t flags, uint64_t guest_phys_addr, uint64_t memory_size, uint64_t userspace_addr) { struct kvm_userspace_memory_region memreg; memreg.slot = slot; memreg.flags = flags; memreg.guest_phys_addr = guest_phys_addr; memreg.memory_size = memory_size; memreg.userspace_addr = userspace_addr; ioctl(vmfd, KVM_SET_USER_MEMORY_REGION, &memreg); } static void install_syzos_code(void* host_mem, size_t mem_size) { size_t size = (char*)&__stop_guest - (char*)&__start_guest; if (size > mem_size) exit(1); memcpy(host_mem, &__start_guest, size); } static void setup_vm(int vmfd, struct kvm_syz_vm* vm) { struct addr_size allocator = {.addr = vm->host_mem, .size = vm->total_pages * KVM_PAGE_SIZE}; int slot = 0; for (size_t i = 0; i < sizeof(syzos_mem_regions) / sizeof(syzos_mem_regions[0]); i++) { const struct mem_region* r = &syzos_mem_regions[i]; if (r->flags & MEM_REGION_FLAG_NO_HOST_MEM) continue; struct addr_size next = alloc_guest_mem(&allocator, r->pages * KVM_PAGE_SIZE); uint32_t flags = 0; if (r->flags & MEM_REGION_FLAG_DIRTY_LOG) flags |= KVM_MEM_LOG_DIRTY_PAGES; if (r->flags & MEM_REGION_FLAG_READONLY) flags |= KVM_MEM_READONLY; if (r->flags & MEM_REGION_FLAG_USER_CODE) vm->user_text = next.addr; if (r->flags & MEM_REGION_FLAG_GPA0) vm->gpa0_mem = next.addr; if (r->flags & MEM_REGION_FLAG_EXECUTOR_CODE) install_syzos_code(next.addr, next.size); vm_set_user_memory_region(vmfd, slot++, flags, r->gpa, next.size, (uintptr_t)next.addr); } struct addr_size next = alloc_guest_mem(&allocator, allocator.size); vm_set_user_memory_region(vmfd, slot++, 0, X86_SYZOS_ADDR_UNUSED, next.size, (uintptr_t)next.addr); } static long syz_kvm_setup_syzos_vm(volatile long a0, volatile long a1) { const int vmfd = a0; void* host_mem = (void*)a1; struct kvm_syz_vm* ret = (struct kvm_syz_vm*)host_mem; ret->host_mem = (void*)((uint64_t)host_mem + KVM_PAGE_SIZE); ret->total_pages = KVM_GUEST_PAGES - 1; setup_vm(vmfd, ret); ret->vmfd = vmfd; ret->next_cpu_id = 0; return (long)ret; } static long syz_kvm_add_vcpu(volatile long a0, volatile long a1) { struct kvm_syz_vm* vm = (struct kvm_syz_vm*)a0; struct kvm_text* utext = (struct kvm_text*)a1; const void* text = utext->text; size_t text_size = utext->size; if (!vm) { errno = EINVAL; return -1; } if (vm->next_cpu_id == KVM_MAX_VCPU) { errno = ENOMEM; return -1; } int cpu_id = vm->next_cpu_id; int cpufd = ioctl(vm->vmfd, KVM_CREATE_VCPU, cpu_id); if (cpufd == -1) return -1; vm->next_cpu_id++; install_user_code(vm, cpufd, cpu_id, text, text_size); return cpufd; } static void setup_gadgetfs(); static void setup_binderfs(); static void setup_fusectl(); static void sandbox_common_mount_tmpfs(void) { write_file("/proc/sys/fs/mount-max", "100000"); if (mkdir("./syz-tmp", 0777)) exit(1); if (mount("", "./syz-tmp", "tmpfs", 0, NULL)) exit(1); if (mkdir("./syz-tmp/newroot", 0777)) exit(1); if (mkdir("./syz-tmp/newroot/dev", 0700)) exit(1); unsigned bind_mount_flags = MS_BIND | MS_REC | MS_PRIVATE; if (mount("/dev", "./syz-tmp/newroot/dev", NULL, bind_mount_flags, NULL)) exit(1); if (mkdir("./syz-tmp/newroot/proc", 0700)) exit(1); if (mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL)) exit(1); if (mkdir("./syz-tmp/newroot/selinux", 0700)) exit(1); const char* selinux_path = "./syz-tmp/newroot/selinux"; if (mount("/selinux", selinux_path, NULL, bind_mount_flags, NULL)) { if (errno != ENOENT) exit(1); if (mount("/sys/fs/selinux", selinux_path, NULL, bind_mount_flags, NULL) && errno != ENOENT) exit(1); } if (mkdir("./syz-tmp/newroot/sys", 0700)) exit(1); if (mount("/sys", "./syz-tmp/newroot/sys", 0, bind_mount_flags, NULL)) exit(1); if (mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, bind_mount_flags, NULL) && errno != ENOENT) exit(1); if (mount("/sys/fs/smackfs", "./syz-tmp/newroot/sys/fs/smackfs", NULL, bind_mount_flags, NULL) && errno != ENOENT) exit(1); if (mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, bind_mount_flags, NULL) && errno != ENOENT) exit(1); if (mkdir("./syz-tmp/newroot/syz-inputs", 0700)) exit(1); if (mount("/syz-inputs", "./syz-tmp/newroot/syz-inputs", NULL, bind_mount_flags | MS_RDONLY, NULL) && errno != ENOENT) exit(1); if (mkdir("./syz-tmp/pivot", 0777)) exit(1); if (syscall(SYS_pivot_root, "./syz-tmp", "./syz-tmp/pivot")) { if (chdir("./syz-tmp")) exit(1); } else { if (chdir("/")) exit(1); if (umount2("./pivot", MNT_DETACH)) exit(1); } if (chroot("./newroot")) exit(1); if (chdir("/")) exit(1); setup_gadgetfs(); setup_binderfs(); setup_fusectl(); } static void setup_gadgetfs() { if (mkdir("/dev/gadgetfs", 0777)) { } if (mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL)) { } } static void setup_fusectl() { if (mount(0, "/sys/fs/fuse/connections", "fusectl", 0, 0)) { } } static void setup_binderfs() { if (mkdir("/dev/binderfs", 0777)) { } if (mount("binder", "/dev/binderfs", "binder", 0, NULL)) { } } static void loop(); static void sandbox_common() { prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0); if (getppid() == 1) exit(1); int netns = open("/proc/self/ns/net", O_RDONLY); if (netns == -1) exit(1); if (dup2(netns, kInitNetNsFd) < 0) exit(1); close(netns); struct rlimit rlim; rlim.rlim_cur = rlim.rlim_max = (200 << 20); setrlimit(RLIMIT_AS, &rlim); rlim.rlim_cur = rlim.rlim_max = 32 << 20; setrlimit(RLIMIT_MEMLOCK, &rlim); rlim.rlim_cur = rlim.rlim_max = 136 << 20; setrlimit(RLIMIT_FSIZE, &rlim); rlim.rlim_cur = rlim.rlim_max = 1 << 20; setrlimit(RLIMIT_STACK, &rlim); rlim.rlim_cur = rlim.rlim_max = 128 << 20; setrlimit(RLIMIT_CORE, &rlim); rlim.rlim_cur = rlim.rlim_max = 256; setrlimit(RLIMIT_NOFILE, &rlim); if (unshare(CLONE_NEWNS)) { } if (mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, NULL)) { } if (unshare(CLONE_NEWIPC)) { } if (unshare(0x02000000)) { } if (unshare(CLONE_NEWUTS)) { } if (unshare(CLONE_SYSVSEM)) { } typedef struct { const char* name; const char* value; } sysctl_t; static const sysctl_t sysctls[] = { {"/proc/sys/kernel/shmmax", "16777216"}, {"/proc/sys/kernel/shmall", "536870912"}, {"/proc/sys/kernel/shmmni", "1024"}, {"/proc/sys/kernel/msgmax", "8192"}, {"/proc/sys/kernel/msgmni", "1024"}, {"/proc/sys/kernel/msgmnb", "1024"}, {"/proc/sys/kernel/sem", "1024 1048576 500 1024"}, }; unsigned i; for (i = 0; i < sizeof(sysctls) / sizeof(sysctls[0]); i++) write_file(sysctls[i].name, sysctls[i].value); } static int wait_for_loop(int pid) { if (pid < 0) exit(1); int status = 0; while (waitpid(-1, &status, __WALL) != pid) { } return WEXITSTATUS(status); } static void drop_caps(void) { struct __user_cap_header_struct cap_hdr = {}; struct __user_cap_data_struct cap_data[2] = {}; cap_hdr.version = _LINUX_CAPABILITY_VERSION_3; cap_hdr.pid = getpid(); if (syscall(SYS_capget, &cap_hdr, &cap_data)) exit(1); const int drop = (1 << CAP_SYS_PTRACE) | (1 << CAP_SYS_NICE); cap_data[0].effective &= ~drop; cap_data[0].permitted &= ~drop; cap_data[0].inheritable &= ~drop; if (syscall(SYS_capset, &cap_hdr, &cap_data)) exit(1); } static int do_sandbox_none(void) { if (unshare(CLONE_NEWPID)) { } int pid = fork(); if (pid != 0) return wait_for_loop(pid); sandbox_common(); drop_caps(); if (unshare(CLONE_NEWNET)) { } write_file("/proc/sys/net/ipv4/ping_group_range", "0 65535"); initialize_devlink_pci(); sandbox_common_mount_tmpfs(); loop(); exit(1); } #define FS_IOC_SETFLAGS _IOW('f', 2, long) static void remove_dir(const char* dir) { int iter = 0; DIR* dp = 0; const int umount_flags = MNT_FORCE | UMOUNT_NOFOLLOW; retry: while (umount2(dir, umount_flags) == 0) { } dp = opendir(dir); if (dp == NULL) { if (errno == EMFILE) { exit(1); } exit(1); } struct dirent* ep = 0; while ((ep = readdir(dp))) { if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0) continue; char filename[FILENAME_MAX]; snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name); while (umount2(filename, umount_flags) == 0) { } struct stat st; if (lstat(filename, &st)) exit(1); if (S_ISDIR(st.st_mode)) { remove_dir(filename); continue; } int i; for (i = 0;; i++) { if (unlink(filename) == 0) break; if (errno == EPERM) { int fd = open(filename, O_RDONLY); if (fd != -1) { long flags = 0; if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) { } close(fd); continue; } } if (errno == EROFS) { break; } if (errno != EBUSY || i > 100) exit(1); if (umount2(filename, umount_flags)) exit(1); } } closedir(dp); for (int i = 0;; i++) { if (rmdir(dir) == 0) break; if (i < 100) { if (errno == EPERM) { int fd = open(dir, O_RDONLY); if (fd != -1) { long flags = 0; if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) { } close(fd); continue; } } if (errno == EROFS) { break; } if (errno == EBUSY) { if (umount2(dir, umount_flags)) exit(1); continue; } if (errno == ENOTEMPTY) { if (iter < 100) { iter++; goto retry; } } } exit(1); } } static int inject_fault(int nth) { int fd; fd = open("/proc/thread-self/fail-nth", O_RDWR); if (fd == -1) exit(1); char buf[16]; sprintf(buf, "%d", nth); if (write(fd, buf, strlen(buf)) != (ssize_t)strlen(buf)) exit(1); return fd; } static void kill_and_wait(int pid, int* status) { kill(-pid, SIGKILL); kill(pid, SIGKILL); for (int i = 0; i < 100; i++) { if (waitpid(-1, status, WNOHANG | __WALL) == pid) return; usleep(1000); } DIR* dir = opendir("/sys/fs/fuse/connections"); if (dir) { for (;;) { struct dirent* ent = readdir(dir); if (!ent) break; if (strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0) continue; char abort[300]; snprintf(abort, sizeof(abort), "/sys/fs/fuse/connections/%s/abort", ent->d_name); int fd = open(abort, O_WRONLY); if (fd == -1) { continue; } if (write(fd, abort, 1) < 0) { } close(fd); } closedir(dir); } else { } while (waitpid(-1, status, __WALL) != pid) { } } static void reset_loop() { char buf[64]; snprintf(buf, sizeof(buf), "/dev/loop%llu", procid); int loopfd = open(buf, O_RDWR); if (loopfd != -1) { ioctl(loopfd, LOOP_CLR_FD, 0); close(loopfd); } } static void setup_test() { prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0); setpgrp(); write_file("/proc/self/oom_score_adj", "1000"); if (symlink("/dev/binderfs", "./binderfs")) { } } static const char* setup_fault() { int fd = open("/proc/self/make-it-fail", O_WRONLY); if (fd == -1) return "CONFIG_FAULT_INJECTION is not enabled"; close(fd); fd = open("/proc/thread-self/fail-nth", O_WRONLY); if (fd == -1) return "kernel does not have systematic fault injection support"; close(fd); static struct { const char* file; const char* val; bool fatal; } files[] = { {"/sys/kernel/debug/failslab/ignore-gfp-wait", "N", true}, {"/sys/kernel/debug/fail_futex/ignore-private", "N", false}, {"/sys/kernel/debug/fail_page_alloc/ignore-gfp-highmem", "N", false}, {"/sys/kernel/debug/fail_page_alloc/ignore-gfp-wait", "N", false}, {"/sys/kernel/debug/fail_page_alloc/min-order", "0", false}, }; unsigned i; for (i = 0; i < sizeof(files) / sizeof(files[0]); i++) { if (!write_file(files[i].file, files[i].val)) { if (files[i].fatal) return "failed to write fault injection file"; } } return NULL; } #define FUSE_MIN_READ_BUFFER 8192 enum fuse_opcode { FUSE_LOOKUP = 1, FUSE_FORGET = 2, FUSE_GETATTR = 3, FUSE_SETATTR = 4, FUSE_READLINK = 5, FUSE_SYMLINK = 6, FUSE_MKNOD = 8, FUSE_MKDIR = 9, FUSE_UNLINK = 10, FUSE_RMDIR = 11, FUSE_RENAME = 12, FUSE_LINK = 13, FUSE_OPEN = 14, FUSE_READ = 15, FUSE_WRITE = 16, FUSE_STATFS = 17, FUSE_RELEASE = 18, FUSE_FSYNC = 20, FUSE_SETXATTR = 21, FUSE_GETXATTR = 22, FUSE_LISTXATTR = 23, FUSE_REMOVEXATTR = 24, FUSE_FLUSH = 25, FUSE_INIT = 26, FUSE_OPENDIR = 27, FUSE_READDIR = 28, FUSE_RELEASEDIR = 29, FUSE_FSYNCDIR = 30, FUSE_GETLK = 31, FUSE_SETLK = 32, FUSE_SETLKW = 33, FUSE_ACCESS = 34, FUSE_CREATE = 35, FUSE_INTERRUPT = 36, FUSE_BMAP = 37, FUSE_DESTROY = 38, FUSE_IOCTL = 39, FUSE_POLL = 40, FUSE_NOTIFY_REPLY = 41, FUSE_BATCH_FORGET = 42, FUSE_FALLOCATE = 43, FUSE_READDIRPLUS = 44, FUSE_RENAME2 = 45, FUSE_LSEEK = 46, FUSE_COPY_FILE_RANGE = 47, FUSE_SETUPMAPPING = 48, FUSE_REMOVEMAPPING = 49, FUSE_SYNCFS = 50, FUSE_TMPFILE = 51, FUSE_STATX = 52, CUSE_INIT = 4096, CUSE_INIT_BSWAP_RESERVED = 1048576, FUSE_INIT_BSWAP_RESERVED = 436207616, }; struct fuse_in_header { uint32_t len; uint32_t opcode; uint64_t unique; uint64_t nodeid; uint32_t uid; uint32_t gid; uint32_t pid; uint32_t padding; }; struct fuse_out_header { uint32_t len; uint32_t error; uint64_t unique; }; struct syz_fuse_req_out { struct fuse_out_header* init; struct fuse_out_header* lseek; struct fuse_out_header* bmap; struct fuse_out_header* poll; struct fuse_out_header* getxattr; struct fuse_out_header* lk; struct fuse_out_header* statfs; struct fuse_out_header* write; struct fuse_out_header* read; struct fuse_out_header* open; struct fuse_out_header* attr; struct fuse_out_header* entry; struct fuse_out_header* dirent; struct fuse_out_header* direntplus; struct fuse_out_header* create_open; struct fuse_out_header* ioctl; struct fuse_out_header* statx; }; static int fuse_send_response(int fd, const struct fuse_in_header* in_hdr, struct fuse_out_header* out_hdr) { if (!out_hdr) { return -1; } out_hdr->unique = in_hdr->unique; if (write(fd, out_hdr, out_hdr->len) == -1) { return -1; } return 0; } static volatile long syz_fuse_handle_req(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { struct syz_fuse_req_out* req_out = (struct syz_fuse_req_out*)a3; struct fuse_out_header* out_hdr = NULL; char* buf = (char*)a1; int buf_len = (int)a2; int fd = (int)a0; if (!req_out) { return -1; } if (buf_len < FUSE_MIN_READ_BUFFER) { return -1; } int ret = read(fd, buf, buf_len); if (ret == -1) { return -1; } if ((size_t)ret < sizeof(struct fuse_in_header)) { return -1; } const struct fuse_in_header* in_hdr = (const struct fuse_in_header*)buf; if (in_hdr->len > (uint32_t)ret) { return -1; } switch (in_hdr->opcode) { case FUSE_GETATTR: case FUSE_SETATTR: out_hdr = req_out->attr; break; case FUSE_LOOKUP: case FUSE_SYMLINK: case FUSE_LINK: case FUSE_MKNOD: case FUSE_MKDIR: out_hdr = req_out->entry; break; case FUSE_OPEN: case FUSE_OPENDIR: out_hdr = req_out->open; break; case FUSE_STATFS: out_hdr = req_out->statfs; break; case FUSE_RMDIR: case FUSE_RENAME: case FUSE_RENAME2: case FUSE_FALLOCATE: case FUSE_SETXATTR: case FUSE_REMOVEXATTR: case FUSE_FSYNCDIR: case FUSE_FSYNC: case FUSE_SETLKW: case FUSE_SETLK: case FUSE_ACCESS: case FUSE_FLUSH: case FUSE_RELEASE: case FUSE_RELEASEDIR: case FUSE_UNLINK: case FUSE_DESTROY: out_hdr = req_out->init; if (!out_hdr) { return -1; } out_hdr->len = sizeof(struct fuse_out_header); break; case FUSE_READ: out_hdr = req_out->read; break; case FUSE_READDIR: out_hdr = req_out->dirent; break; case FUSE_READDIRPLUS: out_hdr = req_out->direntplus; break; case FUSE_INIT: out_hdr = req_out->init; break; case FUSE_LSEEK: out_hdr = req_out->lseek; break; case FUSE_GETLK: out_hdr = req_out->lk; break; case FUSE_BMAP: out_hdr = req_out->bmap; break; case FUSE_POLL: out_hdr = req_out->poll; break; case FUSE_GETXATTR: case FUSE_LISTXATTR: out_hdr = req_out->getxattr; break; case FUSE_WRITE: case FUSE_COPY_FILE_RANGE: out_hdr = req_out->write; break; case FUSE_FORGET: case FUSE_BATCH_FORGET: return 0; case FUSE_CREATE: out_hdr = req_out->create_open; break; case FUSE_IOCTL: out_hdr = req_out->ioctl; break; case FUSE_STATX: out_hdr = req_out->statx; break; default: return -1; } return fuse_send_response(fd, in_hdr, out_hdr); } #define HWSIM_ATTR_RX_RATE 5 #define HWSIM_ATTR_SIGNAL 6 #define HWSIM_ATTR_ADDR_RECEIVER 1 #define HWSIM_ATTR_FRAME 3 #define WIFI_MAX_INJECT_LEN 2048 static int hwsim_register_socket(struct nlmsg* nlmsg, int sock, int hwsim_family) { struct genlmsghdr genlhdr; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = HWSIM_CMD_REGISTER; netlink_init(nlmsg, hwsim_family, 0, &genlhdr, sizeof(genlhdr)); int err = netlink_send_ext(nlmsg, sock, 0, NULL, false); if (err < 0) { } return err; } static int hwsim_inject_frame(struct nlmsg* nlmsg, int sock, int hwsim_family, uint8_t* mac_addr, uint8_t* data, int len) { struct genlmsghdr genlhdr; uint32_t rx_rate = WIFI_DEFAULT_RX_RATE; uint32_t signal = WIFI_DEFAULT_SIGNAL; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = HWSIM_CMD_FRAME; netlink_init(nlmsg, hwsim_family, 0, &genlhdr, sizeof(genlhdr)); netlink_attr(nlmsg, HWSIM_ATTR_RX_RATE, &rx_rate, sizeof(rx_rate)); netlink_attr(nlmsg, HWSIM_ATTR_SIGNAL, &signal, sizeof(signal)); netlink_attr(nlmsg, HWSIM_ATTR_ADDR_RECEIVER, mac_addr, ETH_ALEN); netlink_attr(nlmsg, HWSIM_ATTR_FRAME, data, len); int err = netlink_send_ext(nlmsg, sock, 0, NULL, false); if (err < 0) { } return err; } static long syz_80211_inject_frame(volatile long a0, volatile long a1, volatile long a2) { uint8_t* mac_addr = (uint8_t*)a0; uint8_t* buf = (uint8_t*)a1; int buf_len = (int)a2; struct nlmsg tmp_msg; if (buf_len < 0 || buf_len > WIFI_MAX_INJECT_LEN) { return -1; } int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC); if (sock < 0) { return -1; } int hwsim_family_id = netlink_query_family_id(&tmp_msg, sock, "MAC80211_HWSIM", false); if (hwsim_family_id < 0) { close(sock); return -1; } int ret = hwsim_register_socket(&tmp_msg, sock, hwsim_family_id); if (ret < 0) { close(sock); return -1; } ret = hwsim_inject_frame(&tmp_msg, sock, hwsim_family_id, mac_addr, buf, buf_len); close(sock); if (ret < 0) { return -1; } return 0; } #define WIFI_MAX_SSID_LEN 32 #define WIFI_JOIN_IBSS_NO_SCAN 0 #define WIFI_JOIN_IBSS_BG_SCAN 1 #define WIFI_JOIN_IBSS_BG_NO_SCAN 2 static long syz_80211_join_ibss(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { char* interface = (char*)a0; uint8_t* ssid = (uint8_t*)a1; int ssid_len = (int)a2; int mode = (int)a3; struct nlmsg tmp_msg; uint8_t bssid[ETH_ALEN] = WIFI_IBSS_BSSID; if (ssid_len < 0 || ssid_len > WIFI_MAX_SSID_LEN) { return -1; } if (mode < 0 || mode > WIFI_JOIN_IBSS_BG_NO_SCAN) { return -1; } int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC); if (sock < 0) { return -1; } int nl80211_family_id = netlink_query_family_id(&tmp_msg, sock, "nl80211", false); if (nl80211_family_id < 0) { close(sock); return -1; } struct join_ibss_props ibss_props = { .wiphy_freq = WIFI_DEFAULT_FREQUENCY, .wiphy_freq_fixed = (mode == WIFI_JOIN_IBSS_NO_SCAN || mode == WIFI_JOIN_IBSS_BG_NO_SCAN), .mac = bssid, .ssid = ssid, .ssid_len = ssid_len}; int ret = nl80211_setup_ibss_interface(&tmp_msg, sock, nl80211_family_id, interface, &ibss_props, false); close(sock); if (ret < 0) { return -1; } if (mode == WIFI_JOIN_IBSS_NO_SCAN) { ret = await_ifla_operstate(&tmp_msg, interface, IF_OPER_UP, false); if (ret < 0) { return -1; } } return 0; } #define USLEEP_FORKED_CHILD (3 * 50 *1000) static long handle_clone_ret(long ret) { if (ret != 0) { return ret; } usleep(USLEEP_FORKED_CHILD); syscall(__NR_exit, 0); while (1) { } } static long syz_clone(volatile long flags, volatile long stack, volatile long stack_len, volatile long ptid, volatile long ctid, volatile long tls) { long sp = (stack + stack_len) & ~15; long ret = (long)syscall(__NR_clone, flags & ~CLONE_VM, sp, ptid, ctid, tls); return handle_clone_ret(ret); } #define MAX_CLONE_ARGS_BYTES 256 static long syz_clone3(volatile long a0, volatile long a1) { unsigned long copy_size = a1; if (copy_size < sizeof(uint64_t) || copy_size > MAX_CLONE_ARGS_BYTES) return -1; char clone_args[MAX_CLONE_ARGS_BYTES]; memcpy(&clone_args, (void*)a0, copy_size); uint64_t* flags = (uint64_t*)&clone_args; *flags &= ~CLONE_VM; return handle_clone_ret((long)syscall(__NR_clone3, &clone_args, copy_size)); } #define RESERVED_PKEY 15 static long syz_pkey_set(volatile long pkey, volatile long val) { if (pkey == RESERVED_PKEY) { errno = EINVAL; return -1; } uint32_t eax = 0; uint32_t ecx = 0; asm volatile("rdpkru" : "=a"(eax) : "c"(ecx) : "edx"); eax &= ~(3 << ((pkey % 16) * 2)); eax |= (val & 3) << ((pkey % 16) * 2); uint32_t edx = 0; asm volatile("wrpkru" ::"a"(eax), "c"(ecx), "d"(edx)); return 0; } static long syz_pidfd_open(volatile long pid, volatile long flags) { if (pid == 1) { pid = 0; } return syscall(__NR_pidfd_open, pid, flags); } struct thread_t { int created, call; event_t ready, done; }; static struct thread_t threads[16]; static void execute_call(int call); static int running; static void* thr(void* arg) { struct thread_t* th = (struct thread_t*)arg; for (;;) { event_wait(&th->ready); event_reset(&th->ready); execute_call(th->call); __atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED); event_set(&th->done); } return 0; } static void execute_one(void) { if (write(1, "executing program\n", sizeof("executing program\n") - 1)) { } int i, call, thread; for (call = 0; call < 63; call++) { for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0])); thread++) { struct thread_t* th = &threads[thread]; if (!th->created) { th->created = 1; event_init(&th->ready); event_init(&th->done); event_set(&th->done); thread_start(thr, th); } if (!event_isset(&th->done)) continue; event_reset(&th->done); th->call = call; __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED); event_set(&th->ready); if (call == 1) break; event_timedwait(&th->done, 50 + (call == 12 ? 500 : 0) + (call == 54 ? 3000 : 0) + (call == 55 ? 3000 : 0) + (call == 56 ? 3000 : 0) + (call == 57 ? 300 : 0) + (call == 58 ? 300 : 0) + (call == 59 ? 3000 : 0) + (call == 60 ? 300 : 0) + (call == 61 ? 300 : 0)); break; } } for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++) sleep_ms(1); } static void execute_one(void); #define WAIT_FLAGS __WALL static void loop(void) { int iter = 0; for (;; iter++) { char cwdbuf[32]; sprintf(cwdbuf, "./%d", iter); if (mkdir(cwdbuf, 0777)) exit(1); reset_loop(); int pid = fork(); if (pid < 0) exit(1); if (pid == 0) { if (chdir(cwdbuf)) exit(1); setup_test(); execute_one(); exit(0); } int status = 0; uint64_t start = current_time_ms(); for (;;) { sleep_ms(10); if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid) break; if (current_time_ms() - start < 5000) continue; kill_and_wait(pid, &status); break; } remove_dir(cwdbuf); } } uint64_t r[41] = {0xffffffffffffffff, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff}; void execute_call(int call) { intptr_t res = 0; switch (call) { case 0: memcpy((void*)0x200000000000, "/dev/ubi_ctrl\000", 14); inject_fault(1); res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x200000000000ul, /*flags=O_NOCTTY|O_NOATIME|O_DIRECT|O_APPEND|O_RDWR*/0x44502, /*mode=*/0); if (res != -1) r[0] = res; break; case 1: STORE_BY_BITMASK(uint8_t, , 0x200000000140, 0xa, 0, 7); STORE_BY_BITMASK(uint8_t, , 0x200000000140, 1, 7, 1); *(uint32_t*)0x200000000144 = 0xc5; *(uint32_t*)0x200000000148 = 1; *(uint64_t*)0x200000000150 = 0x200000000040; memcpy((void*)0x200000000040, "\xe1\xee\x87\xa8\xf7\x6c\x25\x7b\x75\xc1\x07\x3c\x70\x58\xbe\x82\xfe\x33\x62\xbb\xcc\xa5\x4d\xf5\x20\xd1\xca\x8f\xa9\x1b\x50\x81\x0f\x87\x6d\x1f\xab\x0a\x1c\xc2\x14\xc3\x5f\x4e\x26\x6e\x71\x64\x3d\x8c\x95\x98\x80\x87\xe4\x6a\x87\xc1\xa7\x15\xef\xfe\x06\x16\x9a\xb6\x5f\xa1\x8e\x54\x14\x40\x4f\x30\xc0\x00\x55\x61\x39\x7e\xd1\xd9\x55\x7c\x66\xa9\x94\xb9\x54\xef\xa7\x14\x98\x5a\x2a\xe4\x09\xdf\x81\x11\xfa\x8a\x36\x14\x08\x73\x4d\x15\xb3\x0c\xd9\xab\x3f\xa5\x0e\x08\x8b\x3d\x2b\xaf\xdc\x68\x9e\xa3\xcb\x7e\x52\xa9\xfc\x7f\x5d\x48\xd2\x45\xd4\x09\x7b\xb9\x33\x72\x5b\xd9\xe2\x93\x71\xcd\x77\x80\xb4\xec\x8d\x6e\x2d\xbf\x86\x1a\xad\x04\xd6\x59\x4f\x5e\xbd\x2f\xfa\xb1\xe8\xa6\x8c\x51\x57\xca\xe2\xf4\x6f\x6f\xa3\xae\xac\x0e\x3f\x8b\x7b\x97\x63\x0f\x34\x6b\xc3\x27\x6e\x53\xca\x72\xb4\x17\xf8", 197); syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0xc0185502, /*arg=*/0x200000000140ul); break; case 2: *(uint8_t*)0x200000000180 = 4; *(uint8_t*)0x200000000181 = 9; syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x4002f516, /*arg=*/0x200000000180ul); for (int i = 0; i < 4; i++) { syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x4002f516, /*arg=*/0x200000000180ul); } break; case 3: *(uint32_t*)0x2000000001c0 = -1; syscall(__NR_setsockopt, /*fd=*/r[0], /*level=*/6, /*optname=*/0x13, /*optval=*/0x2000000001c0ul, /*optlen=*/4ul); break; case 4: *(uint32_t*)0x200000000200 = 4; *(uint16_t*)0x200000000208 = 0xa; *(uint16_t*)0x20000000020a = htobe16(0x4e20); *(uint32_t*)0x20000000020c = htobe32(4); *(uint8_t*)0x200000000210 = 0xfc; *(uint8_t*)0x200000000211 = 0; memset((void*)0x200000000212, 0, 13); *(uint8_t*)0x20000000021f = 1; *(uint32_t*)0x200000000220 = 0; *(uint16_t*)0x200000000288 = 0xa; *(uint16_t*)0x20000000028a = htobe16(0x4e21); *(uint32_t*)0x20000000028c = htobe32(1); *(uint8_t*)0x200000000290 = 0xfe; *(uint8_t*)0x200000000291 = 0x80; memset((void*)0x200000000292, 0, 13); *(uint8_t*)0x20000000029f = 0xaa; *(uint32_t*)0x2000000002a0 = 9; syscall(__NR_setsockopt, /*fd=*/r[0], /*level=*/0x29, /*optname=MCAST_BLOCK_SOURCE*/0x2b, /*optval=*/0x200000000200ul, /*optlen=*/0x108ul); break; case 5: *(uint32_t*)0x200000000340 = 0x4b; memcpy((void*)0x200000000344, "\x0c\xbd\x83\x9a\x79\x58\x33\x77\x5d\x88\x69\x41\xba\x50\xa6\x62\xb8\x10\x8f\x94\x6a\xef\xdd\x5c\xb7\xb6\xeb\x3a\x78\xa0\x64\x73\xe5\x82\x89\xee\x95\x41\xad\x35\x45\x8f\xa9\xd6\xb6\x44\xbf\x56\xfd\xbb\xe1\xc4\x40\x04\x3f\x67\x9b\x3a\x03\xcf\x34\xcc\x05\xed\xc7\x36\xad\x84\x88\x52\xc6\x93\xb8\x9b\x55\x1c\xaa\xbf\x8c\xae\xdd\x7f\x8e\xe9\x80\x29\x49\x11\xc0\x2a\xcd\xb1\x10\x5f\x36\xe9\x73\x61\x6e\xb6\x09\x53\x5e\x68\xc8\xaf\xfb\x3c\x93\x5c\x76\x0f\x88\x5f\xa2\xa4\xb4\x83\x8d\x7d\xb0\x09\xe9\x19\xe5\xab\x59\x34\xb3\xb8\x5f\x8f\xf9\xe2\xaf\xc0\xa1\x86\xc9\xdc\xf9\xab\x5c\x9f\x6e\xb4\x56\x20\xdd\xbd\xa7\xe2\xa4\x67\x7a\x1e\x7c\x69\x4b\x3e\x00\xe3\x5a\x16\xd8\xe5\x25\x26\xd1\x35\x3b\xb0\xfd\x60\x7f\xa0\xf0\x7d\x45\x80\x81\x02\xe3\x8c\x66\xb6\xb5\xbf\xe0\x53\x03\x6b\x95\x6a\x96\x70\x1a\x8d\x02\x58\x8e\x7a\x7c\xc1\xf8\x4a\x3c\x0a\x3b\xa7\x80\xd5\xbb\x49\x4e\x86\x01\x75\x98\x9a\xb6\xec\x07\xd1\x35\x33\x71\x5c\xfb\x45\x84\xfd\x2a\x81\x86\xd7\x4b\xb7\x40\x17\x20\x6d\x94\x0f\x25\xfa\x7e\xc2\xde\xbe\x5a\x31\xcf\x5c\x23\x30", 256); syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x41045508, /*arg=*/0x200000000340ul); break; case 6: *(uint64_t*)0x200000000580 = 0x200000000480; *(uint64_t*)0x200000000588 = 0x8000; *(uint32_t*)0x200000000590 = 0x1800; *(uint32_t*)0x200000000594 = 1; *(uint32_t*)0x200000000598 = 3; syscall(__NR_setsockopt, /*fd=*/r[0], /*level=*/0x11b, /*opt=*/4, /*val=*/0x200000000580ul, /*len=*/0x20ul); break; case 7: *(uint64_t*)0x2000000005c0 = 4; syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x127d, /*arg=*/0x2000000005c0ul); break; case 8: *(uint32_t*)0x200000000604 = 0; *(uint32_t*)0x200000000608 = r[0]; *(uint32_t*)0x20000000060c = 0; syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0xc01864c2, /*arg=*/0x200000000600ul); break; case 9: *(uint32_t*)0x2000000006c0 = 0; syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0xc00464c9, /*arg=*/0x2000000006c0ul); break; case 10: memset((void*)0x200000000000, 255, 6); STORE_BY_BITMASK(uint8_t, , 0x200000000040, 0, 0, 2); STORE_BY_BITMASK(uint8_t, , 0x200000000040, 2, 2, 2); STORE_BY_BITMASK(uint8_t, , 0x200000000040, 0xb, 4, 4); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 0, 0, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 1, 1, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 0, 2, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 1, 3, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 1, 4, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 0, 5, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 0, 6, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 1, 7, 1); STORE_BY_BITMASK(uint16_t, , 0x200000000042, 2, 0, 15); STORE_BY_BITMASK(uint16_t, , 0x200000000043, 0, 7, 1); *(uint8_t*)0x200000000044 = 8; *(uint8_t*)0x200000000045 = 2; *(uint8_t*)0x200000000046 = 0x11; *(uint8_t*)0x200000000047 = 0; *(uint8_t*)0x200000000048 = 0; *(uint8_t*)0x200000000049 = 1; *(uint8_t*)0x20000000004a = 8; *(uint8_t*)0x20000000004b = 2; *(uint8_t*)0x20000000004c = 0x11; *(uint8_t*)0x20000000004d = 0; *(uint8_t*)0x20000000004e = 0; *(uint8_t*)0x20000000004f = 0; memset((void*)0x200000000050, 80, 6); STORE_BY_BITMASK(uint16_t, , 0x200000000056, 9, 0, 4); STORE_BY_BITMASK(uint16_t, , 0x200000000056, 0x5bb, 4, 12); STORE_BY_BITMASK(uint8_t, , 0x200000000058, 1, 0, 4); STORE_BY_BITMASK(uint8_t, , 0x200000000058, 1, 4, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000058, 1, 5, 2); STORE_BY_BITMASK(uint8_t, , 0x200000000058, 1, 7, 1); *(uint8_t*)0x200000000059 = 9; STORE_BY_BITMASK(uint16_t, , 0x20000000005a, 0, 0, 1); STORE_BY_BITMASK(uint16_t, , 0x20000000005a, 2, 1, 15); STORE_BY_BITMASK(uint8_t, , 0x20000000005c, 0, 0, 2); STORE_BY_BITMASK(uint8_t, , 0x20000000005c, 0, 2, 2); STORE_BY_BITMASK(uint8_t, , 0x20000000005c, 0, 4, 2); STORE_BY_BITMASK(uint8_t, , 0x20000000005c, 3, 6, 2); STORE_BY_BITMASK(uint8_t, , 0x20000000005d, 0, 0, 1); STORE_BY_BITMASK(uint8_t, , 0x20000000005d, 0, 1, 5); STORE_BY_BITMASK(uint8_t, , 0x20000000005d, 1, 6, 1); STORE_BY_BITMASK(uint8_t, , 0x20000000005d, 0, 7, 1); memcpy((void*)0x20000000005e, "\x05\x5b\xa7\x19\x28\xa7\x9f\x86\x25\x94\x2b\x8e\x22\xa6\x2e\x7d\x0e\xf5\xd2\x6a\xfb\x59\x23\xf0\xa1", 25); syz_80211_inject_frame(/*mac_addr=*/0x200000000000, /*buf=*/0x200000000040, /*buf_len=*/0x37); break; case 11: memcpy((void*)0x200000000080, "wlan0\000", 6); memcpy((void*)0x2000000000c0, "\xf2\x0f\x01\x43\x92\x29\x17\x2e\xc7\x63\x7d\x66\xe2\xf0\x75", 15); syz_80211_join_ibss(/*interface=*/0x200000000080, /*ssid=*/0x2000000000c0, /*ssid_len=*/0xf, /*join_mode=JOIN_IBSS_BG_NO_SCAN*/2); break; case 12: memcpy((void*)0x200000000100, "bpf_lsm_inode_getsecurity\000", 26); syz_btf_id_by_name(/*name=*/0x200000000100); break; case 13: memcpy((void*)0x200000000140, "\xff\x42\x7f\x0e\x46\x59\xab\x58\x93\xd3\xba\xdb\x31\xb3\xb1\xb8\x9d\xa5\x2b\x0f\x3d\x34\x89\xa1\x8a\x58\x37\xba\x6e\x04\xf2\x1c\xf0\x58\x1d\xe7\x94\x6c\x2e\x29\xad\xef\x18\x03\x6a\x10\xce\x36\x12\x50\xa5\x66\x70\x64\xb4\xd4\x56\xc6\x4c\x30\x7d\x63\xcf\xe3\x42\x2c\x3f\xaf\xd4\x50\x31\x5e\x83\x66", 74); memcpy((void*)0x200000000240, "\xb2\x01\xd1\x39\xa4\x34\x4e\x46\x3d\x89\x91\x3b\xee\x9c\x68\xaf\x3f\x34\x09\x0b\x9f\x62\x44\xaf\x88\xc8\xfe\x07\xce\x4f\xfe\x9b\x81\x21\x0d\xa0\xfc\x44\x55\x9d\x98\x5a\xd5\xbb\x1d\xc9\x67\x2c\xe4\xd1\xdf\x55\x4a\xaf\xb7\x80\x53\xf4", 58); res = -1; res = syz_clone(/*flags=CLONE_PIDFD*/0x1000, /*stack=*/0x200000000140, /*stack_len=*/0x4a, /*parentid=*/0x2000000001c0, /*childtid=*/0x200000000200, /*tls=*/0x200000000240); if (res != -1) r[1] = res; break; case 14: *(uint64_t*)0x200000000440 = 0x100400; *(uint64_t*)0x200000000448 = 0x200000000280; *(uint64_t*)0x200000000450 = 0x2000000002c0; *(uint64_t*)0x200000000458 = 0x200000000300; *(uint32_t*)0x200000000460 = 0x2a; *(uint64_t*)0x200000000468 = 0x200000000340; *(uint64_t*)0x200000000470 = 0x15; *(uint64_t*)0x200000000478 = 0x200000000380; *(uint64_t*)0x200000000480 = 0x200000000400; *(uint32_t*)0x200000000400 = r[1]; *(uint64_t*)0x200000000488 = 1; *(uint32_t*)0x200000000490 = -1; res = -1; res = syz_clone3(/*args=*/0x200000000440, /*size=*/0x58); if (res != -1) { r[2] = res; r[3] = *(uint32_t*)0x200000000280; r[4] = *(uint32_t*)0x2000000002c0; r[5] = *(uint32_t*)0x200000000300; } break; case 15: memcpy((void*)0x2000000004c0, "./file0\000", 8); syz_create_resource(/*file=*/0x2000000004c0); break; case 16: memcpy((void*)0x200000000740, "/dev/cuse\000", 10); res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x200000000740ul, /*flags=*/2, /*mode=*/0); if (res != -1) r[6] = res; break; case 17: *(uint32_t*)0x200000002a80 = 7; *(uint32_t*)0x200000002a84 = 4; *(uint32_t*)0x200000002a88 = r[5]; *(uint32_t*)0x200000002a90 = 0; *(uint64_t*)0x200000002a98 = 0x100000000; *(uint64_t*)0x200000002aa0 = 3; res = syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0xc0286405, /*arg=*/0x200000002a80ul); if (res != -1) r[7] = *(uint32_t*)0x200000002a90; break; case 18: *(uint32_t*)0x200000002b80 = 1; *(uint32_t*)0x200000002b84 = 0; *(uint32_t*)0x200000002b88 = 0xee00; *(uint32_t*)0x200000002b8c = 5; *(uint32_t*)0x200000002b90 = 9; *(uint32_t*)0x200000002b94 = 0x8c; *(uint16_t*)0x200000002b98 = 6; *(uint32_t*)0x200000002b9c = 0xe0000; *(uint64_t*)0x200000002ba0 = 3; *(uint64_t*)0x200000002ba8 = 6; *(uint64_t*)0x200000002bb0 = 0x2c54; *(uint32_t*)0x200000002bb8 = 0x7fffffff; *(uint32_t*)0x200000002bbc = 5; *(uint16_t*)0x200000002bc0 = 3; *(uint16_t*)0x200000002bc2 = 0; *(uint64_t*)0x200000002bc8 = 0x200000002ac0; memcpy((void*)0x200000002ac0, "\x34\xd1\x45\x92\x33\x0d\x2e\xff\xe2\xb2\x42\xce\x1c\x79\xf9\x7a\x73\x7d\xc0\xf7\x74\x5d\x84\xee\xc4\x69\x04\x8b\xa4\x77\x2d\x3c\xa2\xf3\x4e\x3a\x83\xb5\xed\xad\xf6\x55\x0e\x5b\x41\x2c\xf5\xee\x74\x9b\x33\x24\xb3\x00\x32\xad\x2a\xe1\x4c\xfa\x29\xef\x4e\xcf\x97\x41\x6f\xdc\x53\xd7\x3b\xb8\x0e\xa1\x39\xaa\xc1\xbf\x36\x4d\xdc\xbe\x74\x09\x34\x21\x55\xae\x12\x6f\x63\xd9\xe3\xab\x1d\x51\x04\xbe\xfd\xd9", 100); *(uint64_t*)0x200000002bd0 = 0x200000002b40; memcpy((void*)0x200000002b40, "\xe5\x50\x41\x3c\x2f\x46\x9c\x9e\xf0\x8e\xb7\x19\x3b\x0a\x24\x2e\x58\xbe\xfe\x01\x2a\xa8\x9d\x7c", 24); res = syscall(__NR_shmctl, /*shmid=*/8, /*cmd=*/2ul, /*buf=*/0x200000002b80ul); if (res != -1) r[8] = *(uint32_t*)0x200000002b88; break; case 19: res = syscall(__NR_setfsuid, /*uid=*/0xee01); if (res != -1) r[9] = res; break; case 20: res = syscall(__NR_getuid); if (res != -1) r[10] = res; break; case 21: res = syscall(__NR_fstat, /*fd=*/r[3], /*statbuf=*/0x200000002ec0ul); if (res != -1) { r[11] = *(uint32_t*)0x200000002ed8; r[12] = *(uint32_t*)0x200000002edc; } break; case 22: *(uint32_t*)0x200000002f40 = 9; *(uint32_t*)0x200000002f44 = 6; *(uint32_t*)0x200000002f48 = -1; *(uint32_t*)0x200000002f50 = 0xee01; *(uint64_t*)0x200000002f58 = 9; *(uint64_t*)0x200000002f60 = 8; res = syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0xc0286405, /*arg=*/0x200000002f40ul); if (res != -1) r[13] = *(uint32_t*)0x200000002f50; break; case 23: *(uint64_t*)0x200000002f80 = 1; *(uint32_t*)0x200000002f88 = r[3]; *(uint32_t*)0x200000002f90 = r[3]; *(uint64_t*)0x200000002f98 = 0; *(uint64_t*)0x200000002fa0 = 0; memset((void*)0x200000002fa8, 0, 16); *(uint64_t*)0x200000002fb8 = 0x100; *(uint16_t*)0x200000002fc0 = 6; *(uint16_t*)0x200000002fc2 = 4; *(uint32_t*)0x200000002fc4 = 0; *(uint32_t*)0x200000002fc8 = 0xee01; *(uint32_t*)0x200000002fcc = 4; *(uint32_t*)0x200000002fd0 = 2; *(uint64_t*)0x200000002fd8 = 0xe78bc90; *(uint64_t*)0x200000002fe0 = 0x9e350; *(uint32_t*)0x200000002fe8 = 0x10; *(uint64_t*)0x200000002ff0 = 4; *(uint32_t*)0x200000002ff8 = 7; *(uint64_t*)0x200000003000 = 0x3a83; *(uint32_t*)0x200000003008 = 0x80000000; *(uint64_t*)0x200000003010 = 0xff; *(uint32_t*)0x200000003018 = 8; *(uint32_t*)0x20000000301c = 7; *(uint32_t*)0x200000003020 = 7; *(uint32_t*)0x200000003024 = 5; *(uint16_t*)0x200000003028 = 0xd275; *(uint16_t*)0x20000000302a = 6; *(uint16_t*)0x20000000302c = 1; *(uint16_t*)0x20000000302e = 0xff74; *(uint16_t*)0x200000003030 = 5; memset((void*)0x200000003032, 0, 2); *(uint32_t*)0x200000003034 = 0xf0e; *(uint32_t*)0x200000003038 = 0x400; *(uint16_t*)0x20000000303c = 2; *(uint16_t*)0x20000000303e = 0x8001; res = syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0xc0c0586d, /*arg=*/0x200000002f80ul); if (res != -1) { r[14] = *(uint32_t*)0x200000002f88; r[15] = *(uint32_t*)0x200000002f90; r[16] = *(uint32_t*)0x200000002fc8; } break; case 24: *(uint32_t*)0x2000000030c0 = 0x80; *(uint32_t*)0x2000000030c4 = 0; *(uint32_t*)0x2000000030c8 = 0xee01; *(uint32_t*)0x2000000030cc = 8; *(uint32_t*)0x2000000030d0 = 3; *(uint32_t*)0x2000000030d4 = 3; *(uint16_t*)0x2000000030d8 = 6; *(uint64_t*)0x2000000030e0 = 0x200000003040; *(uint8_t*)0x200000003040 = 0xf; *(uint64_t*)0x2000000030e8 = 0x200000003080; *(uint8_t*)0x200000003080 = 0x29; *(uint64_t*)0x2000000030f0 = 0xfffffffffffff801; *(uint64_t*)0x2000000030f8 = 0x6b4c; *(uint64_t*)0x200000003100 = 0; *(uint64_t*)0x200000003108 = 3; *(uint64_t*)0x200000003110 = 0x800; *(uint16_t*)0x200000003118 = 2; *(uint16_t*)0x20000000311a = 0xbf09; *(uint16_t*)0x20000000311c = 3; *(uint32_t*)0x200000003120 = r[2]; *(uint32_t*)0x200000003124 = r[4]; res = syscall(__NR_msgctl, /*msqid=*/2, /*cmd=*/0ul, /*buf=*/0x2000000030c0ul); if (res != -1) r[17] = *(uint32_t*)0x2000000030c4; break; case 25: *(uint32_t*)0x200000003140 = 0xb407; *(uint32_t*)0x200000003144 = 0xee01; *(uint64_t*)0x200000003148 = 8; *(uint64_t*)0x200000003150 = 8; res = syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0x4018aee2, /*arg=*/0x200000003140ul); if (res != -1) r[18] = *(uint32_t*)0x200000003144; break; case 26: memcpy((void*)0x200000003180, "./file0\000", 8); *(uint32_t*)0x2000000031c0 = 8; *(uint32_t*)0x2000000031c4 = 0xfffffffe; *(uint64_t*)0x2000000031c8 = 0; *(uint32_t*)0x2000000031d0 = 0xa; *(uint32_t*)0x2000000031d4 = 0; *(uint32_t*)0x2000000031d8 = 0xee00; *(uint16_t*)0x2000000031dc = 0xf; *(uint16_t*)0x2000000031de = 0x5d3e; *(uint64_t*)0x2000000031e0 = 5; *(uint64_t*)0x2000000031e8 = 0x10; *(uint64_t*)0x2000000031f0 = 0xff89; *(uint64_t*)0x2000000031f8 = 0x100; *(uint64_t*)0x200000003200 = 0xf; *(uint32_t*)0x200000003208 = 8; *(uint32_t*)0x20000000320c = 0; *(uint64_t*)0x200000003210 = 0xfff; *(uint32_t*)0x200000003218 = 2; *(uint32_t*)0x20000000321c = 0; *(uint64_t*)0x200000003220 = 3; *(uint32_t*)0x200000003228 = 0x7fff; *(uint32_t*)0x20000000322c = 0; *(uint64_t*)0x200000003230 = -1; *(uint32_t*)0x200000003238 = 9; *(uint32_t*)0x20000000323c = 0; *(uint32_t*)0x200000003240 = 0; *(uint32_t*)0x200000003244 = 3; *(uint32_t*)0x200000003248 = 7; *(uint32_t*)0x20000000324c = 0x8d6; *(uint64_t*)0x200000003250 = 0x383d; *(uint32_t*)0x200000003258 = 4; *(uint32_t*)0x20000000325c = 0xb0d4; *(uint64_t*)0x200000003260 = 0x503; *(uint32_t*)0x200000003268 = 2; *(uint32_t*)0x20000000326c = 0; *(uint32_t*)0x200000003270 = 5; *(uint32_t*)0x200000003274 = 2; *(uint64_t*)0x200000003278 = 0xfffffffffffffffb; *(uint64_t*)0x200000003280 = 0xff; *(uint64_t*)0x200000003288 = 3; *(uint64_t*)0x200000003290 = 0x259; *(uint64_t*)0x200000003298 = 0xbe9; *(uint64_t*)0x2000000032a0 = 0xff; *(uint64_t*)0x2000000032a8 = 6; *(uint64_t*)0x2000000032b0 = 0x800; *(uint64_t*)0x2000000032b8 = 9; res = syscall(__NR_statx, /*dfd=*/0xffffff9c, /*filename=*/0x200000003180ul, /*flags=*/4, /*mask=*/2, /*buffer=*/0x2000000031c0ul); if (res != -1) r[19] = *(uint32_t*)0x2000000031d4; break; case 27: *(uint32_t*)0x200000004300 = 5; *(uint32_t*)0x200000004304 = 0xee00; *(uint32_t*)0x200000004308 = 0xee00; *(uint32_t*)0x20000000430c = 3; *(uint32_t*)0x200000004310 = 0x7ff; *(uint32_t*)0x200000004314 = 2; *(uint16_t*)0x200000004318 = 5; *(uint32_t*)0x20000000431c = 2; *(uint64_t*)0x200000004320 = 0x401; *(uint64_t*)0x200000004328 = 3; *(uint64_t*)0x200000004330 = 0xfffffffffffffffe; *(uint32_t*)0x200000004338 = r[1]; *(uint32_t*)0x20000000433c = r[4]; *(uint16_t*)0x200000004340 = 0xfffe; *(uint16_t*)0x200000004342 = 0; *(uint64_t*)0x200000004348 = 0x2000000032c0; memcpy((void*)0x2000000032c0, 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4096); *(uint64_t*)0x200000004350 = 0x2000000042c0; memcpy((void*)0x2000000042c0, "\x14\xdc\x2c\x36\xc1\xa4\x73\x0f\x33\xf0\xa4\x77\x56\xb4\x37\x79\x2e\x9a\xc7\x8f\x74\x2f\x82\x1e\x32\x83\x41\xe0\x2b", 29); res = syscall(__NR_shmctl, /*shmid=*/3, /*cmd=*/1ul, /*buf=*/0x200000004300ul); if (res != -1) { r[20] = *(uint32_t*)0x200000004308; r[21] = *(uint32_t*)0x20000000433c; } break; case 28: memcpy((void*)0x200000004600, "./file0\000", 8); res = syscall(__NR_newfstatat, /*dfd=*/0xffffffffffffff9cul, /*file=*/0x200000004600ul, /*statbuf=*/0x200000004640ul, /*flag=*/0ul); if (res != -1) r[22] = *(uint32_t*)0x200000004658; break; case 29: res = syscall(__NR_fstat, /*fd=*/r[3], /*statbuf=*/0x2000000046c0ul); if (res != -1) { r[23] = *(uint32_t*)0x2000000046d8; r[24] = *(uint32_t*)0x2000000046dc; } break; case 30: *(uint32_t*)0x2000000058c0 = -1; *(uint32_t*)0x2000000058c4 = 0xee00; *(uint32_t*)0x2000000058c8 = -1; *(uint32_t*)0x2000000058cc = 2; *(uint32_t*)0x2000000058d0 = 9; *(uint32_t*)0x2000000058d4 = 2; *(uint16_t*)0x2000000058d8 = 4; *(uint32_t*)0x2000000058dc = 6; *(uint64_t*)0x2000000058e0 = 4; *(uint64_t*)0x2000000058e8 = 4; *(uint64_t*)0x2000000058f0 = 1; *(uint32_t*)0x2000000058f8 = 0; *(uint32_t*)0x2000000058fc = r[4]; *(uint16_t*)0x200000005900 = 0x40; *(uint16_t*)0x200000005902 = 0; *(uint64_t*)0x200000005908 = 0x200000004840; memcpy((void*)0x200000004840, "\xbe\x99\x9e\xee\x25\x89\x59\xe9\x3a\x2a\xa6\x8d\xc2\xcb\x1d\x93\xb8\x19\xd2\xb9\xd9\xe6\x78\xe2\xe2\x50\x6d\x54\x51\x0e\x92\x07\x28\xd7\x58\x15\xbb\x80\x27\xe6\xa0\x21\xfe\xbb\x8f\x09\x96\xf8\xad\xd6\x87\x7b\x74\xce\x5e\xac\xe7\x45\x04\xcf\x3a\x4f\x3a\xc4\x6a\x5a\x59\x40\x03\x42\x35\x19\x40\xbf\xb8\x76\x7d\xd9\x95\x5c\x9e\x9a\x99\x41", 84); *(uint64_t*)0x200000005910 = 0x2000000048c0; memcpy((void*)0x2000000048c0, 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4096); res = syscall(__NR_shmctl, /*shmid=*/0, /*cmd=*/7, /*buf=*/0x2000000058c0ul); if (res != -1) r[25] = *(uint32_t*)0x2000000058c4; break; case 31: memcpy((void*)0x200000005940, "./file0\000", 8); *(uint64_t*)0x200000005980 = 0x100000000; *(uint64_t*)0x200000005988 = 0x7d80; *(uint64_t*)0x200000005990 = 1; *(uint32_t*)0x200000005998 = 0x40; *(uint32_t*)0x20000000599c = -1; *(uint32_t*)0x2000000059a0 = 0; *(uint32_t*)0x2000000059a4 = 0; *(uint64_t*)0x2000000059a8 = 7; *(uint64_t*)0x2000000059b0 = 0xfffffffffffffffb; *(uint64_t*)0x2000000059b8 = 0; *(uint64_t*)0x2000000059c0 = 2; *(uint64_t*)0x2000000059c8 = 0xe6; *(uint64_t*)0x2000000059d0 = 2; *(uint64_t*)0x2000000059d8 = 4; *(uint64_t*)0x2000000059e0 = 0xa03f; *(uint64_t*)0x2000000059e8 = 0x10; *(uint64_t*)0x2000000059f0 = 7; memset((void*)0x2000000059f8, 0, 24); res = syscall(__NR_lstat, /*filename=*/0x200000005940ul, /*statbuf=*/0x200000005980ul); if (res != -1) { r[26] = *(uint32_t*)0x20000000599c; r[27] = *(uint32_t*)0x2000000059a0; } break; case 32: memcpy((void*)0x200000000780, 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8192); *(uint64_t*)0x200000005b80 = 0x200000002780; *(uint32_t*)0x200000002780 = 0x50; *(uint32_t*)0x200000002784 = 0xffffffda; *(uint64_t*)0x200000002788 = 7; *(uint32_t*)0x200000002790 = 7; *(uint32_t*)0x200000002794 = 0x2d; *(uint32_t*)0x200000002798 = 8; *(uint32_t*)0x20000000279c = 0x1020000; *(uint16_t*)0x2000000027a0 = 0xfffc; *(uint16_t*)0x2000000027a2 = 0x401; *(uint32_t*)0x2000000027a4 = 0x12; *(uint32_t*)0x2000000027a8 = 6; *(uint16_t*)0x2000000027ac = 0; *(uint16_t*)0x2000000027ae = 0; *(uint32_t*)0x2000000027b0 = 0x40; *(uint32_t*)0x2000000027b4 = 0xce; memset((void*)0x2000000027b8, 0, 24); *(uint64_t*)0x200000005b88 = 0x200000002800; *(uint32_t*)0x200000002800 = 0x18; *(uint32_t*)0x200000002804 = 0; *(uint64_t*)0x200000002808 = 6; *(uint64_t*)0x200000002810 = 0xbb; *(uint64_t*)0x200000005b90 = 0x200000002840; *(uint32_t*)0x200000002840 = 0x18; *(uint32_t*)0x200000002844 = 0; *(uint64_t*)0x200000002848 = 1; *(uint64_t*)0x200000002850 = 5; *(uint64_t*)0x200000005b98 = 0x200000002880; *(uint32_t*)0x200000002880 = 0x18; *(uint32_t*)0x200000002884 = 0xfffffff5; *(uint64_t*)0x200000002888 = 4; *(uint32_t*)0x200000002890 = 0; *(uint32_t*)0x200000002894 = 0; *(uint64_t*)0x200000005ba0 = 0x2000000028c0; *(uint32_t*)0x2000000028c0 = 0x18; *(uint32_t*)0x2000000028c4 = 0xfffffffe; *(uint64_t*)0x2000000028c8 = 3; *(uint32_t*)0x2000000028d0 = 7; *(uint32_t*)0x2000000028d4 = 0; *(uint64_t*)0x200000005ba8 = 0x200000002900; *(uint32_t*)0x200000002900 = 0x28; *(uint32_t*)0x200000002904 = 0; *(uint64_t*)0x200000002908 = 0x300000000000; *(uint64_t*)0x200000002910 = 1; *(uint64_t*)0x200000002918 = 8; *(uint32_t*)0x200000002920 = 0; *(uint32_t*)0x200000002924 = r[1]; *(uint64_t*)0x200000005bb0 = 0x200000002940; *(uint32_t*)0x200000002940 = 0x60; *(uint32_t*)0x200000002944 = 0; *(uint64_t*)0x200000002948 = 0xc; *(uint64_t*)0x200000002950 = 0; *(uint64_t*)0x200000002958 = 0xff; *(uint64_t*)0x200000002960 = 2; *(uint64_t*)0x200000002968 = 0x41; *(uint64_t*)0x200000002970 = 0x40; *(uint32_t*)0x200000002978 = 6; *(uint32_t*)0x20000000297c = 0x8dd; *(uint32_t*)0x200000002980 = 5; *(uint32_t*)0x200000002984 = 0; memset((void*)0x200000002988, 0, 24); *(uint64_t*)0x200000005bb8 = 0x2000000029c0; *(uint32_t*)0x2000000029c0 = 0x18; *(uint32_t*)0x2000000029c4 = 0xffffffda; *(uint64_t*)0x2000000029c8 = 9; *(uint32_t*)0x2000000029d0 = 5; *(uint32_t*)0x2000000029d4 = 0; *(uint64_t*)0x200000005bc0 = 0x200000002a00; *(uint32_t*)0x200000002a00 = 0x16; *(uint32_t*)0x200000002a04 = 0; *(uint64_t*)0x200000002a08 = 6; memset((void*)0x200000002a10, 255, 6); *(uint64_t*)0x200000005bc8 = 0x200000002a40; *(uint32_t*)0x200000002a40 = 0x20; *(uint32_t*)0x200000002a44 = 0; *(uint64_t*)0x200000002a48 = 0; *(uint64_t*)0x200000002a50 = 0; *(uint32_t*)0x200000002a58 = 0x1e; *(uint32_t*)0x200000002a5c = 0; *(uint64_t*)0x200000005bd0 = 0x200000002c00; *(uint32_t*)0x200000002c00 = 0x78; *(uint32_t*)0x200000002c04 = 0xfffffffe; *(uint64_t*)0x200000002c08 = 3; *(uint64_t*)0x200000002c10 = 8; *(uint32_t*)0x200000002c18 = 6; *(uint32_t*)0x200000002c1c = 0; *(uint64_t*)0x200000002c20 = 0; *(uint64_t*)0x200000002c28 = 8; *(uint64_t*)0x200000002c30 = 2; *(uint64_t*)0x200000002c38 = 8; *(uint64_t*)0x200000002c40 = 0x80; *(uint64_t*)0x200000002c48 = 5; *(uint32_t*)0x200000002c50 = 0x3482; *(uint32_t*)0x200000002c54 = 0xa246; *(uint32_t*)0x200000002c58 = 0x80000000; *(uint32_t*)0x200000002c5c = 0x4000; *(uint32_t*)0x200000002c60 = 0x3e08; *(uint32_t*)0x200000002c64 = r[7]; *(uint32_t*)0x200000002c68 = r[8]; *(uint32_t*)0x200000002c6c = 0x7f; *(uint32_t*)0x200000002c70 = 3; *(uint32_t*)0x200000002c74 = 0; *(uint64_t*)0x200000005bd8 = 0x200000002c80; *(uint32_t*)0x200000002c80 = 0x90; *(uint32_t*)0x200000002c84 = 0xffffffda; *(uint64_t*)0x200000002c88 = 2; *(uint64_t*)0x200000002c90 = 6; *(uint64_t*)0x200000002c98 = 0; *(uint64_t*)0x200000002ca0 = 2; *(uint64_t*)0x200000002ca8 = 8; *(uint32_t*)0x200000002cb0 = 0xfffffffc; *(uint32_t*)0x200000002cb4 = 9; *(uint64_t*)0x200000002cb8 = 1; *(uint64_t*)0x200000002cc0 = 3; *(uint64_t*)0x200000002cc8 = 2; *(uint64_t*)0x200000002cd0 = 5; *(uint64_t*)0x200000002cd8 = 0x761; *(uint64_t*)0x200000002ce0 = 7; *(uint32_t*)0x200000002ce8 = 0x58d95c3d; *(uint32_t*)0x200000002cec = 7; *(uint32_t*)0x200000002cf0 = 7; *(uint32_t*)0x200000002cf4 = 0x8000; *(uint32_t*)0x200000002cf8 = 8; *(uint32_t*)0x200000002cfc = r[9]; *(uint32_t*)0x200000002d00 = 0xee01; *(uint32_t*)0x200000002d04 = 0; *(uint32_t*)0x200000002d08 = 0x400; *(uint32_t*)0x200000002d0c = 0; *(uint64_t*)0x200000005be0 = 0x200000002d40; *(uint32_t*)0x200000002d40 = 0x158; *(uint32_t*)0x200000002d44 = 0; *(uint64_t*)0x200000002d48 = 0x8000000000000001; *(uint64_t*)0x200000002d50 = 0; *(uint64_t*)0x200000002d58 = 0; *(uint32_t*)0x200000002d60 = 0; *(uint32_t*)0x200000002d64 = 5; *(uint64_t*)0x200000002d68 = 2; *(uint64_t*)0x200000002d70 = 0x291; *(uint32_t*)0x200000002d78 = 3; *(uint32_t*)0x200000002d7c = 0; memcpy((void*)0x200000002d80, "a-$", 3); *(uint64_t*)0x200000002d88 = 6; *(uint64_t*)0x200000002d90 = 1; *(uint32_t*)0x200000002d98 = 0x1a; *(uint32_t*)0x200000002d9c = 0x5df9; memcpy((void*)0x200000002da0, "bpf_lsm_inode_getsecurity\000", 26); *(uint64_t*)0x200000002dc0 = 5; *(uint64_t*)0x200000002dc8 = 4; *(uint32_t*)0x200000002dd0 = 0; *(uint32_t*)0x200000002dd4 = 0; *(uint64_t*)0x200000002dd8 = 3; *(uint64_t*)0x200000002de0 = 2; *(uint32_t*)0x200000002de8 = 7; *(uint32_t*)0x200000002dec = 0x615d; memcpy((void*)0x200000002df0, "]F,[@%(", 7); *(uint64_t*)0x200000002df8 = 3; *(uint64_t*)0x200000002e00 = 4; *(uint32_t*)0x200000002e08 = 2; *(uint32_t*)0x200000002e0c = 5; memcpy((void*)0x200000002e10, "#*", 2); *(uint64_t*)0x200000002e18 = 6; *(uint64_t*)0x200000002e20 = 0xc; *(uint32_t*)0x200000002e28 = 1; *(uint32_t*)0x200000002e2c = 0x200; memset((void*)0x200000002e30, 33, 1); *(uint64_t*)0x200000002e38 = 2; *(uint64_t*)0x200000002e40 = 1; *(uint32_t*)0x200000002e48 = 3; *(uint32_t*)0x200000002e4c = 0xffff; memcpy((void*)0x200000002e50, "%[*", 3); *(uint64_t*)0x200000002e58 = 2; *(uint64_t*)0x200000002e60 = 1; *(uint32_t*)0x200000002e68 = 6; *(uint32_t*)0x200000002e6c = 0x10001; memset((void*)0x200000002e70, 187, 6); *(uint64_t*)0x200000002e78 = 2; *(uint64_t*)0x200000002e80 = 9; *(uint32_t*)0x200000002e88 = 3; *(uint32_t*)0x200000002e8c = 3; memcpy((void*)0x200000002e90, "\\$&", 3); *(uint64_t*)0x200000005be8 = 0x200000004380; *(uint32_t*)0x200000004380 = 0x280; *(uint32_t*)0x200000004384 = 0; *(uint64_t*)0x200000004388 = 7; *(uint64_t*)0x200000004390 = 1; *(uint64_t*)0x200000004398 = 2; *(uint64_t*)0x2000000043a0 = 0x9b; *(uint64_t*)0x2000000043a8 = 0xa; *(uint32_t*)0x2000000043b0 = 0x40; *(uint32_t*)0x2000000043b4 = 0x2b; *(uint64_t*)0x2000000043b8 = 1; *(uint64_t*)0x2000000043c0 = 0; *(uint64_t*)0x2000000043c8 = 0xf5; *(uint64_t*)0x2000000043d0 = 7; *(uint64_t*)0x2000000043d8 = 8; *(uint64_t*)0x2000000043e0 = 7; *(uint32_t*)0x2000000043e8 = 5; *(uint32_t*)0x2000000043ec = 9; *(uint32_t*)0x2000000043f0 = 0x1b; *(uint32_t*)0x2000000043f4 = 0xa000; *(uint32_t*)0x2000000043f8 = 4; *(uint32_t*)0x2000000043fc = r[10]; *(uint32_t*)0x200000004400 = r[12]; *(uint32_t*)0x200000004404 = 4; *(uint32_t*)0x200000004408 = 0x10000; *(uint32_t*)0x20000000440c = 0; *(uint64_t*)0x200000004410 = 4; *(uint64_t*)0x200000004418 = 6; *(uint32_t*)0x200000004420 = 0; *(uint32_t*)0x200000004424 = 0x7f; *(uint64_t*)0x200000004428 = 1; *(uint64_t*)0x200000004430 = 0; *(uint64_t*)0x200000004438 = 9; *(uint64_t*)0x200000004440 = 4; *(uint32_t*)0x200000004448 = 9; *(uint32_t*)0x20000000444c = 0x101; *(uint64_t*)0x200000004450 = 0; *(uint64_t*)0x200000004458 = 0x80; *(uint64_t*)0x200000004460 = 0x80000001; *(uint64_t*)0x200000004468 = 8; *(uint64_t*)0x200000004470 = 0x7fffffffffffffff; *(uint64_t*)0x200000004478 = 0xc14; *(uint32_t*)0x200000004480 = 7; *(uint32_t*)0x200000004484 = 2; *(uint32_t*)0x200000004488 = 5; *(uint32_t*)0x20000000448c = 0x1000; *(uint32_t*)0x200000004490 = 7; *(uint32_t*)0x200000004494 = r[13]; *(uint32_t*)0x200000004498 = r[16]; *(uint32_t*)0x20000000449c = 7; *(uint32_t*)0x2000000044a0 = 3; *(uint32_t*)0x2000000044a4 = 0; *(uint64_t*)0x2000000044a8 = 1; *(uint64_t*)0x2000000044b0 = 0x8000000000000000; *(uint32_t*)0x2000000044b8 = 0; *(uint32_t*)0x2000000044bc = 9; *(uint64_t*)0x2000000044c0 = 3; *(uint64_t*)0x2000000044c8 = 1; *(uint64_t*)0x2000000044d0 = 7; *(uint64_t*)0x2000000044d8 = 3; *(uint32_t*)0x2000000044e0 = 0x10000; *(uint32_t*)0x2000000044e4 = 0xfff; *(uint64_t*)0x2000000044e8 = 6; *(uint64_t*)0x2000000044f0 = 3; *(uint64_t*)0x2000000044f8 = 4; *(uint64_t*)0x200000004500 = 0xffffffff; *(uint64_t*)0x200000004508 = 5; *(uint64_t*)0x200000004510 = 1; *(uint32_t*)0x200000004518 = 0xcf; *(uint32_t*)0x20000000451c = 5; *(uint32_t*)0x200000004520 = 2; *(uint32_t*)0x200000004524 = 0x3000; *(uint32_t*)0x200000004528 = 0xf; *(uint32_t*)0x20000000452c = r[17]; *(uint32_t*)0x200000004530 = r[18]; *(uint32_t*)0x200000004534 = 0xdda; *(uint32_t*)0x200000004538 = 0x800; *(uint32_t*)0x20000000453c = 0; *(uint64_t*)0x200000004540 = 0; *(uint64_t*)0x200000004548 = 0x480; *(uint32_t*)0x200000004550 = 1; *(uint32_t*)0x200000004554 = 7; memset((void*)0x200000004558, 39, 1); *(uint64_t*)0x200000004560 = 3; *(uint64_t*)0x200000004568 = 0; *(uint64_t*)0x200000004570 = 6; *(uint64_t*)0x200000004578 = 6; *(uint32_t*)0x200000004580 = 0xae90; *(uint32_t*)0x200000004584 = 0x7fff; *(uint64_t*)0x200000004588 = 5; *(uint64_t*)0x200000004590 = 2; *(uint64_t*)0x200000004598 = 0xffff; *(uint64_t*)0x2000000045a0 = 0xb6; *(uint64_t*)0x2000000045a8 = 9; *(uint64_t*)0x2000000045b0 = 8; *(uint32_t*)0x2000000045b8 = 0x200; *(uint32_t*)0x2000000045bc = 3; *(uint32_t*)0x2000000045c0 = 6; *(uint32_t*)0x2000000045c4 = 0x6000; *(uint32_t*)0x2000000045c8 = 0xfffffff7; *(uint32_t*)0x2000000045cc = r[19]; *(uint32_t*)0x2000000045d0 = r[20]; *(uint32_t*)0x2000000045d4 = 4; *(uint32_t*)0x2000000045d8 = 6; *(uint32_t*)0x2000000045dc = 0; *(uint64_t*)0x2000000045e0 = 0; *(uint64_t*)0x2000000045e8 = 3; *(uint32_t*)0x2000000045f0 = 6; *(uint32_t*)0x2000000045f4 = 0xfffffffd; memcpy((void*)0x2000000045f8, "wlan0\000", 6); *(uint64_t*)0x200000005bf0 = 0x200000004740; *(uint32_t*)0x200000004740 = 0xa0; *(uint32_t*)0x200000004744 = 0xfffffffe; *(uint64_t*)0x200000004748 = 0x7fff; *(uint64_t*)0x200000004750 = 1; *(uint64_t*)0x200000004758 = 2; *(uint64_t*)0x200000004760 = 8; *(uint64_t*)0x200000004768 = 0x8001; *(uint32_t*)0x200000004770 = 0x9000; *(uint32_t*)0x200000004774 = 0; *(uint64_t*)0x200000004778 = 3; *(uint64_t*)0x200000004780 = 4; *(uint64_t*)0x200000004788 = 0x4283; *(uint64_t*)0x200000004790 = 6; *(uint64_t*)0x200000004798 = 7; *(uint64_t*)0x2000000047a0 = 1; *(uint32_t*)0x2000000047a8 = 4; *(uint32_t*)0x2000000047ac = 0x8000; *(uint32_t*)0x2000000047b0 = 0x7f; *(uint32_t*)0x2000000047b4 = 0x2000; *(uint32_t*)0x2000000047b8 = 0xa; *(uint32_t*)0x2000000047bc = r[22]; *(uint32_t*)0x2000000047c0 = r[24]; *(uint32_t*)0x2000000047c4 = 2; *(uint32_t*)0x2000000047c8 = 9; *(uint32_t*)0x2000000047cc = 0; *(uint64_t*)0x2000000047d0 = 0; *(uint32_t*)0x2000000047d8 = 0; *(uint32_t*)0x2000000047dc = 0; *(uint64_t*)0x200000005bf8 = 0x200000004800; *(uint32_t*)0x200000004800 = 0x20; *(uint32_t*)0x200000004804 = 0; *(uint64_t*)0x200000004808 = 0xa; *(uint32_t*)0x200000004810 = 8; *(uint32_t*)0x200000004814 = 0; *(uint32_t*)0x200000004818 = 0; *(uint32_t*)0x20000000481c = 0; *(uint64_t*)0x200000005c00 = 0x200000005a40; *(uint32_t*)0x200000005a40 = 0x130; *(uint32_t*)0x200000005a44 = 0; *(uint64_t*)0x200000005a48 = 0x800; *(uint64_t*)0x200000005a50 = 0x10000000; *(uint32_t*)0x200000005a58 = 9; *(uint32_t*)0x200000005a5c = 0; memset((void*)0x200000005a60, 0, 16); *(uint32_t*)0x200000005a70 = 4; *(uint32_t*)0x200000005a74 = 0xfffffff9; *(uint64_t*)0x200000005a78 = 8; *(uint32_t*)0x200000005a80 = 0xd; *(uint32_t*)0x200000005a84 = r[25]; *(uint32_t*)0x200000005a88 = r[27]; *(uint16_t*)0x200000005a8c = 0x4000; memset((void*)0x200000005a8e, 0, 2); *(uint64_t*)0x200000005a90 = 0xe; *(uint64_t*)0x200000005a98 = 1; *(uint64_t*)0x200000005aa0 = 9; *(uint64_t*)0x200000005aa8 = 4; *(uint64_t*)0x200000005ab0 = 0x75; *(uint32_t*)0x200000005ab8 = 0x10; *(uint32_t*)0x200000005abc = 0; *(uint64_t*)0x200000005ac0 = 0; *(uint32_t*)0x200000005ac8 = 0x2a; *(uint32_t*)0x200000005acc = 0; *(uint64_t*)0x200000005ad0 = 4; *(uint32_t*)0x200000005ad8 = 0x647; *(uint32_t*)0x200000005adc = 0; *(uint64_t*)0x200000005ae0 = 8; *(uint32_t*)0x200000005ae8 = 0xfffffffa; *(uint32_t*)0x200000005aec = 0; *(uint32_t*)0x200000005af0 = 4; *(uint32_t*)0x200000005af4 = 9; *(uint32_t*)0x200000005af8 = 0xf1; *(uint32_t*)0x200000005afc = 7; memset((void*)0x200000005b00, 0, 112); syz_fuse_handle_req(/*fd=*/r[6], /*buf=*/0x200000000780, /*len=*/0x2000, /*res=*/0x200000005b80); break; case 33: res = syscall(__NR_socket, /*domain=*/0x10ul, /*type=*/3ul, /*proto=*/0x10); if (res != -1) r[28] = res; break; case 34: memcpy((void*)0x200000005c40, "SEG6\000", 5); syz_genetlink_get_family_id(/*name=*/0x200000005c40, /*fd=*/r[28]); break; case 35: syz_init_net_socket(/*domain=*/0x24, /*type=*/2, /*proto=*/0); break; case 36: res = -1; res = syz_io_uring_complete(/*ring_ptr=*/0); if (res != -1) r[29] = res; break; case 37: *(uint32_t*)0x200000005c84 = 0x9c5d; *(uint32_t*)0x200000005c88 = 2; *(uint32_t*)0x200000005c8c = 1; *(uint32_t*)0x200000005c90 = 0x253; *(uint32_t*)0x200000005c98 = r[15]; memset((void*)0x200000005c9c, 0, 12); res = -1; res = syz_io_uring_setup(/*entries=*/0x19f7, /*params=*/0x200000005c80, /*ring_ptr=*/0x200000005d00, /*sqes_ptr=*/0x200000005d40); if (res != -1) { r[30] = *(uint64_t*)0x200000005d00; r[31] = *(uint64_t*)0x200000005d40; } break; case 38: *(uint8_t*)0x200000005dc0 = 0xb; *(uint8_t*)0x200000005dc1 = 0x28; *(uint16_t*)0x200000005dc2 = 0; *(uint32_t*)0x200000005dc4 = 0; *(uint64_t*)0x200000005dc8 = 3; *(uint64_t*)0x200000005dd0 = 0x200000005d80; *(uint64_t*)0x200000005d80 = 0; *(uint64_t*)0x200000005d88 = 0; *(uint32_t*)0x200000005dd8 = 1; *(uint32_t*)0x200000005ddc = 0x10; *(uint64_t*)0x200000005de0 = 1; *(uint16_t*)0x200000005de8 = 0; *(uint16_t*)0x200000005dea = 0; memset((void*)0x200000005dec, 0, 20); syz_io_uring_submit(/*ring_ptr=*/r[30], /*sqes_ptr=*/r[31], /*sqe=*/0x200000005dc0); break; case 39: res = -1; res = syz_kvm_setup_syzos_vm(/*fd=*/r[15], /*usermem=*/0x200000bff000); if (res != -1) r[32] = res; break; case 40: *(uint64_t*)0x200000005e80 = 0; *(uint64_t*)0x200000005e88 = 0x200000005e00; *(uint64_t*)0x200000005e00 = 0x12c; *(uint64_t*)0x200000005e08 = 0x18; *(uint64_t*)0x200000005e10 = 0; *(uint64_t*)0x200000005e18 = 0; *(uint64_t*)0x200000005e20 = 0x18; *(uint64_t*)0x200000005e28 = 4; *(uint64_t*)0x200000005e30 = 0x12d; *(uint64_t*)0x200000005e38 = 0x18; *(uint64_t*)0x200000005e40 = 2; *(uint64_t*)0x200000005e90 = 0x48; syz_kvm_add_vcpu(/*vm=*/r[32], /*text=*/0x200000005e80); break; case 41: *(uint64_t*)0x200000006100 = 0; *(uint64_t*)0x200000006108 = 0x200000005ec0; memcpy((void*)0x200000005ec0, 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560); *(uint64_t*)0x200000006110 = 0x230; *(uint64_t*)0x200000006140 = 1; *(uint64_t*)0x200000006148 = 7; syz_kvm_setup_cpu(/*fd=*/r[14], /*cpufd=*/r[29], /*usermem=*/0x200000c37000, /*text=*/0x200000006100, /*ntext=*/1, /*flags=KVM_SETUP_PPC64_LE*/1, /*opts=*/0x200000006140, /*nopt=*/1); break; case 42: syz_kvm_setup_syzos_vm(/*fd=*/r[29], /*usermem=*/0x200000c00000); break; case 43: *(uint32_t*)0x200000006180 = 0; syz_memcpy_off(/*ring_ptr=*/r[30], /*flag_off=SQ_FLAGS_OFFSET*/0x114, /*src=*/0x200000006180, /*src_off=*/0, /*nbytes=*/4); break; case 44: *(uint64_t*)0x200000006240 = 5; res = syscall(__NR_socketcall, /*call=*/1ul, /*args=*/0x200000006240ul); if (res != -1) r[33] = res; break; case 45: *(uint32_t*)0x200000006340 = 0xfffffffa; *(uint32_t*)0x200000006344 = r[11]; *(uint32_t*)0x200000006348 = r[27]; *(uint32_t*)0x20000000634c = 3; *(uint32_t*)0x200000006350 = 0xffff; *(uint32_t*)0x200000006354 = 0xe6b; *(uint16_t*)0x200000006358 = 7; *(uint32_t*)0x20000000635c = 0; *(uint64_t*)0x200000006360 = 0x357b; *(uint64_t*)0x200000006368 = 3; *(uint64_t*)0x200000006370 = 0x8000000000000000; *(uint32_t*)0x200000006378 = 0x74; *(uint32_t*)0x20000000637c = r[21]; *(uint16_t*)0x200000006380 = 0xc0b; *(uint16_t*)0x200000006382 = 0; *(uint64_t*)0x200000006388 = 0x200000006280; memcpy((void*)0x200000006280, "\x70\x10\x15\x9f\x68\xd5\xae\x90\x71\x37\xfa\x70\xd2\x86\xa1\x8b\xa4\x83\x48\xf8\x8d\x1f\xa0\x97\xcf\xe8\x2b\xb9\x55\x9e\x66\xc9\x7b\x4c\xcf\x3a\xcd\x9c\xe2\x40\x54\x49\x07\xf4\x53\x81\x70\xe4\x5e\x0c\x6d\xe8\xad\xfb\x6a\xe9\x4e\xd4\x4b\x61\x6a\x63\x73\x78\x14\xf1\x89\x44\x73\xd9\x51\x9f\x21\x30\xe8\xa0\xe0\x61\xc9\x6e\x46\xa9\x9a\x53\x16\xe4\x6b\x6b\x46\x13\x48\xbb\x03\xdd\xda\xd7\x06\x75\xbc\xda\x59\x21\xbd\xb5\x03\x8c\xc7\xdc\xad\xe7\xba\x3e\x10\x6c\xf3\x15\xe2\xad\x48\x81\x8a\x62\xc7", 123); *(uint64_t*)0x200000006390 = 0x200000006300; memcpy((void*)0x200000006300, "\x13\x68\x24\x8a\xd9\x08\xeb\x42\x50\x81\x23\x9c\x0a\x10\xa5\x14\xef\x06\xf1\x6f\xa3\x8b\xc5\x2b\x0f\x03\xb0\x4d\x36\xf5\x44\x26\x3c\xb4\xa0\xa3\xff\xbb\xaf\xa8\x00\x89\xcf\x8b\x02\x84\x1d\xf4\x33\xc6\xb9\x7d\xa8\xfb\xfe\x28\x5f\xcc\xd0\x5a\xd4", 61); res = syscall(__NR_shmctl, /*shmid=*/0x80000000, /*cmd=*/0xeul, /*buf=*/0x200000006340ul); if (res != -1) { r[34] = *(uint32_t*)0x200000006348; r[35] = *(uint32_t*)0x20000000637c; } break; case 46: memcpy((void*)0x2000000061c0, "fuse\000", 5); memcpy((void*)0x200000006200, "./file0\000", 8); memcpy((void*)0x2000000063c0, "fd", 2); *(uint8_t*)0x2000000063c2 = 0x3d; sprintf((char*)0x2000000063c3, "0x%016llx", (long long)r[33]); *(uint8_t*)0x2000000063d5 = 0x2c; memcpy((void*)0x2000000063d6, "rootmode", 8); *(uint8_t*)0x2000000063de = 0x3d; sprintf((char*)0x2000000063df, "%023llo", (long long)0x1000); *(uint8_t*)0x2000000063f6 = 0x2c; memcpy((void*)0x2000000063f7, "user_id", 7); *(uint8_t*)0x2000000063fe = 0x3d; sprintf((char*)0x2000000063ff, "%020llu", (long long)r[23]); *(uint8_t*)0x200000006413 = 0x2c; memcpy((void*)0x200000006414, "group_id", 8); *(uint8_t*)0x20000000641c = 0x3d; sprintf((char*)0x20000000641d, "%020llu", (long long)r[34]); *(uint8_t*)0x200000006431 = 0x2c; memcpy((void*)0x200000006432, "blksize", 7); *(uint8_t*)0x200000006439 = 0x3d; sprintf((char*)0x20000000643a, "0x%016llx", (long long)0x600); *(uint8_t*)0x20000000644c = 0x2c; memcpy((void*)0x20000000644d, "max_read", 8); *(uint8_t*)0x200000006455 = 0x3d; sprintf((char*)0x200000006456, "0x%016llx", (long long)0); *(uint8_t*)0x200000006468 = 0x2c; memcpy((void*)0x200000006469, "blksize", 7); *(uint8_t*)0x200000006470 = 0x3d; sprintf((char*)0x200000006471, "0x%016llx", (long long)0x1e00); *(uint8_t*)0x200000006483 = 0x2c; memcpy((void*)0x200000006484, "max_read", 8); *(uint8_t*)0x20000000648c = 0x3d; sprintf((char*)0x20000000648d, "0x%016llx", (long long)0x100000001); *(uint8_t*)0x20000000649f = 0x2c; memcpy((void*)0x2000000064a0, "default_permissions", 19); *(uint8_t*)0x2000000064b3 = 0x2c; memcpy((void*)0x2000000064b4, "default_permissions", 19); *(uint8_t*)0x2000000064c7 = 0x2c; memcpy((void*)0x2000000064c8, "euid<", 5); sprintf((char*)0x2000000064cd, "%020llu", (long long)r[13]); *(uint8_t*)0x2000000064e1 = 0x2c; memcpy((void*)0x2000000064e2, "subj_user", 9); *(uint8_t*)0x2000000064eb = 0x3d; memset((void*)0x2000000064ec, 44, 1); *(uint8_t*)0x2000000064ed = 0x2c; memcpy((void*)0x2000000064ee, "uid<", 4); sprintf((char*)0x2000000064f2, "%020llu", (long long)r[26]); *(uint8_t*)0x200000006506 = 0x2c; memcpy((void*)0x200000006507, "audit", 5); *(uint8_t*)0x20000000650c = 0x2c; memcpy((void*)0x20000000650d, "dont_measure", 12); *(uint8_t*)0x200000006519 = 0x2c; *(uint8_t*)0x20000000651a = 0; memcpy((void*)0x200000006540, "\xd3\xaa\x92", 3); syz_mount_image(/*fs=*/0x2000000061c0, /*dir=*/0x200000006200, /*flags=MS_NOATIME*/0x400, /*opts=*/0x2000000063c0, /*chdir=*/0, /*size=*/0, /*img=*/0x200000006540); break; case 47: memcpy((void*)0x200000006580, "/dev/i2c-#\000", 11); syz_open_dev(/*dev=*/0x200000006580, /*id=*/0x800, /*flags=O_NOATIME*/0x40000); break; case 48: memcpy((void*)0x2000000065c0, "cgroup\000", 7); syz_open_procfs(/*pid=*/r[5], /*file=*/0x2000000065c0); break; case 49: syz_open_pts(/*fd=*/r[14], /*flags=O_TRUNC|O_WRONLY*/0x201); break; case 50: syz_pidfd_open(/*pid=*/r[35], /*flags=*/0); break; case 51: res = syscall(__NR_pkey_alloc, /*flags=*/0ul, /*val=PKEY_DISABLE_WRITE*/2ul); if (res != -1) r[36] = res; break; case 52: syz_pkey_set(/*key=*/r[36], /*val=*/0); break; case 53: syz_socket_connect_nvme_tcp(); break; case 54: *(uint8_t*)0x200000006600 = 0x12; *(uint8_t*)0x200000006601 = 1; *(uint16_t*)0x200000006602 = 0x310; *(uint8_t*)0x200000006604 = 0xf; *(uint8_t*)0x200000006605 = 0x36; *(uint8_t*)0x200000006606 = 0x49; *(uint8_t*)0x200000006607 = 8; *(uint16_t*)0x200000006608 = 0x7d0; *(uint16_t*)0x20000000660a = 0x4101; *(uint16_t*)0x20000000660c = 0x4624; *(uint8_t*)0x20000000660e = 1; *(uint8_t*)0x20000000660f = 2; *(uint8_t*)0x200000006610 = 3; *(uint8_t*)0x200000006611 = 1; *(uint8_t*)0x200000006612 = 9; *(uint8_t*)0x200000006613 = 2; *(uint16_t*)0x200000006614 = 0x4f2; *(uint8_t*)0x200000006616 = 3; *(uint8_t*)0x200000006617 = 1; *(uint8_t*)0x200000006618 = 0xa2; *(uint8_t*)0x200000006619 = 0x40; *(uint8_t*)0x20000000661a = 0x64; *(uint8_t*)0x20000000661b = 9; *(uint8_t*)0x20000000661c = 4; *(uint8_t*)0x20000000661d = 0xc2; *(uint8_t*)0x20000000661e = 7; *(uint8_t*)0x20000000661f = 0xa; *(uint8_t*)0x200000006620 = 0x50; *(uint8_t*)0x200000006621 = 0xb3; *(uint8_t*)0x200000006622 = 0x17; *(uint8_t*)0x200000006623 = 7; *(uint8_t*)0x200000006624 = 9; *(uint8_t*)0x200000006625 = 0x21; *(uint16_t*)0x200000006626 = 3; *(uint8_t*)0x200000006628 = 0xdf; *(uint8_t*)0x200000006629 = 1; *(uint8_t*)0x20000000662a = 0x22; *(uint16_t*)0x20000000662b = 0x238; *(uint8_t*)0x20000000662d = 7; *(uint8_t*)0x20000000662e = 0x24; *(uint8_t*)0x20000000662f = 1; *(uint8_t*)0x200000006630 = 2; *(uint8_t*)0x200000006631 = 2; *(uint16_t*)0x200000006632 = 2; *(uint8_t*)0x200000006634 = 0xb; *(uint8_t*)0x200000006635 = 0x24; *(uint8_t*)0x200000006636 = 2; *(uint8_t*)0x200000006637 = 1; *(uint8_t*)0x200000006638 = 0xde; *(uint8_t*)0x200000006639 = 2; *(uint8_t*)0x20000000663a = 0; *(uint8_t*)0x20000000663b = 5; memcpy((void*)0x20000000663c, "\x11\x6d\xf7", 3); *(uint8_t*)0x20000000663f = 0xa; *(uint8_t*)0x200000006640 = 0x24; *(uint8_t*)0x200000006641 = 2; *(uint8_t*)0x200000006642 = 2; *(uint16_t*)0x200000006643 = 8; *(uint16_t*)0x200000006645 = 3; *(uint8_t*)0x200000006647 = 7; memset((void*)0x200000006648, 59, 1); *(uint8_t*)0x200000006649 = 0xa; *(uint8_t*)0x20000000664a = 0x24; *(uint8_t*)0x20000000664b = 2; *(uint8_t*)0x20000000664c = 1; *(uint8_t*)0x20000000664d = 4; *(uint8_t*)0x20000000664e = 3; *(uint8_t*)0x20000000664f = 0x1a; *(uint8_t*)0x200000006650 = 9; memcpy((void*)0x200000006651, "\x0f\x58", 2); *(uint8_t*)0x200000006653 = 0xc; *(uint8_t*)0x200000006654 = 0x24; *(uint8_t*)0x200000006655 = 2; *(uint8_t*)0x200000006656 = 2; *(uint16_t*)0x200000006657 = 0xf270; *(uint16_t*)0x200000006659 = 0x100; *(uint8_t*)0x20000000665b = 7; memcpy((void*)0x20000000665c, "\x31\x29\xf9", 3); *(uint8_t*)0x20000000665f = 0xb; *(uint8_t*)0x200000006660 = 0x24; *(uint8_t*)0x200000006661 = 2; *(uint8_t*)0x200000006662 = 1; *(uint8_t*)0x200000006663 = 1; *(uint8_t*)0x200000006664 = 3; *(uint8_t*)0x200000006665 = 0xf9; *(uint8_t*)0x200000006666 = 0xa3; memcpy((void*)0x200000006667, "\x54\x06\x13", 3); *(uint8_t*)0x20000000666a = 9; *(uint8_t*)0x20000000666b = 5; *(uint8_t*)0x20000000666c = 3; *(uint8_t*)0x20000000666d = 0x38; *(uint16_t*)0x20000000666e = 8; *(uint8_t*)0x200000006670 = 1; *(uint8_t*)0x200000006671 = 0xf9; *(uint8_t*)0x200000006672 = 0; *(uint8_t*)0x200000006673 = 7; *(uint8_t*)0x200000006674 = 0x25; *(uint8_t*)0x200000006675 = 1; *(uint8_t*)0x200000006676 = 1; *(uint8_t*)0x200000006677 = 0x80; *(uint16_t*)0x200000006678 = 0xffb0; *(uint8_t*)0x20000000667a = 0x62; *(uint8_t*)0x20000000667b = 0xe; memcpy((void*)0x20000000667c, "\x0b\xef\x67\x9d\x63\x59\xd7\x1a\x14\x4a\x38\xa2\x28\x34\xd1\x2b\xd1\x9c\x60\xb6\x58\x29\xf4\x4e\xbe\x6b\x12\x58\xa3\xa7\xa0\xcc\x60\xf3\x00\x07\xc2\xc4\xd2\xa3\xcb\x88\xfb\x6b\xeb\x58\x0e\x62\x81\x47\x11\x4f\xfc\x6a\x4e\x39\xb1\x9e\x71\x8f\xc2\xcd\x0f\xa5\xaf\x68\x86\x49\xab\xe3\xdb\x58\xd0\x70\x72\x03\x28\x3b\x6b\xdc\xa0\x5f\x49\xfb\x16\xb3\x61\x8f\xcf\x4d\xd0\x1c\xb2\xef\x35\x09", 96); *(uint8_t*)0x2000000066dc = 9; *(uint8_t*)0x2000000066dd = 5; *(uint8_t*)0x2000000066de = 4; *(uint8_t*)0x2000000066df = 0; *(uint16_t*)0x2000000066e0 = 0x20; *(uint8_t*)0x2000000066e2 = 1; *(uint8_t*)0x2000000066e3 = 2; *(uint8_t*)0x2000000066e4 = 5; *(uint8_t*)0x2000000066e5 = 0x4e; *(uint8_t*)0x2000000066e6 = 0xa; memcpy((void*)0x2000000066e7, "\xaa\xde\x99\xcc\xf3\x48\x06\x1a\xd9\x22\x25\xe0\x5a\x39\x6a\x2e\xbe\x89\x2c\xa6\x5d\xe9\xef\xa6\x65\x82\x1e\x34\x20\x0c\x5c\xaa\x94\x3c\x9b\x1a\x3e\xb1\x08\x28\xe1\x38\x15\xe6\x12\x0c\x47\x87\xa4\xd3\x95\xb1\xe3\x2a\x8b\xa1\xff\xb9\x91\x37\x58\x79\xd5\x17\x86\x2d\xe6\xe9\xcb\x6f\x72\x33\x35\xdd\x15\x6a", 76); *(uint8_t*)0x200000006733 = 9; *(uint8_t*)0x200000006734 = 5; *(uint8_t*)0x200000006735 = 3; *(uint8_t*)0x200000006736 = 0xc; *(uint16_t*)0x200000006737 = 0x3ff; *(uint8_t*)0x200000006739 = 7; *(uint8_t*)0x20000000673a = 0; *(uint8_t*)0x20000000673b = 0x7f; *(uint8_t*)0x20000000673c = 0x33; *(uint8_t*)0x20000000673d = 0xe; memcpy((void*)0x20000000673e, "\x08\xb9\x28\xc5\x63\xb3\xfb\xc1\x36\xbe\xaf\x22\xbf\x46\xe0\xcf\x55\xe3\xf2\x62\x48\x5f\x30\xb2\x8a\x3f\x9a\x3e\xc9\x01\xce\x80\x66\xc6\x78\x8d\x46\x95\x26\xc5\x5b\xf0\xc2\xb3\xca\x50\x05\x53\x9a", 49); *(uint8_t*)0x20000000676f = 9; *(uint8_t*)0x200000006770 = 5; *(uint8_t*)0x200000006771 = 0xb; *(uint8_t*)0x200000006772 = 4; *(uint16_t*)0x200000006773 = 0x3ff; *(uint8_t*)0x200000006775 = 3; *(uint8_t*)0x200000006776 = 0x40; *(uint8_t*)0x200000006777 = 0x7f; *(uint8_t*)0x200000006778 = 7; *(uint8_t*)0x200000006779 = 0x25; *(uint8_t*)0x20000000677a = 1; *(uint8_t*)0x20000000677b = 0x87; *(uint8_t*)0x20000000677c = 9; *(uint16_t*)0x20000000677d = 0x4e; *(uint8_t*)0x20000000677f = 0xcb; *(uint8_t*)0x200000006780 = 0x11; memcpy((void*)0x200000006781, "\x3b\x9d\xca\xcc\x67\x90\x86\xd7\x8f\x92\x7a\xb6\x34\x93\x5a\x18\x81\x3b\x23\xcc\xef\xfe\xa6\x9b\x63\x0a\xa9\x7c\xc4\x69\x90\x7a\xfa\xc2\xa3\x03\x27\xad\xeb\x90\x1d\x9f\xb9\x00\xad\x82\x13\x80\x98\xcb\xff\x5f\xed\x7f\xee\x2c\x7d\x70\x12\x90\xce\x4a\xd0\x20\xa9\xda\x29\x67\x5f\x8f\x05\x13\x99\x87\x9d\xb5\x70\x22\xb8\x9c\x99\x01\x20\x51\x3a\xaa\x70\xc5\x18\x47\xb1\x28\xdd\x73\xbd\xea\x25\xcb\xb5\x45\xc1\xae\x83\x52\x02\x4c\xa9\x3c\xd7\xea\x88\x1c\xbb\x09\x20\xee\xde\xf0\x72\xef\xe9\xda\x61\xb7\xbd\x77\xa3\xc0\x85\xd7\x12\xc1\x42\xca\x88\xc3\x9f\x8e\xdd\x17\xd6\xfb\x9a\x7e\xf8\xd0\xfa\xd5\xa1\x5a\x33\x3e\x7e\xd0\x5e\x7e\x9a\xe6\xe2\xa4\x64\xc3\x15\x9a\xb1\xa6\x0e\x33\xaf\xbf\x29\xa2\xf6\x78\xc8\xc9\xe2\xf8\xf7\xa8\xd0\x3d\x55\x82\x52\x9b\x27\x7b\x4b\xe8\x55\x83\xe5\xd8\x1b\xc9\x57\x49\x77\x30\x42", 201); *(uint8_t*)0x20000000684a = 9; *(uint8_t*)0x20000000684b = 5; *(uint8_t*)0x20000000684c = 1; *(uint8_t*)0x20000000684d = 3; *(uint16_t*)0x20000000684e = 8; *(uint8_t*)0x200000006850 = 0xe; *(uint8_t*)0x200000006851 = 8; *(uint8_t*)0x200000006852 = 0x7f; *(uint8_t*)0x200000006853 = 0x72; *(uint8_t*)0x200000006854 = 6; memcpy((void*)0x200000006855, "\x6e\xe2\x41\x04\x69\xb7\xa8\xb2\x3e\x32\x55\xa5\x54\xb6\x3d\x5b\xeb\x1b\x34\xb4\x87\x18\x94\xe3\xdf\x69\xe7\x55\x8c\xe5\x6c\xc8\x3b\x83\xae\x1a\xc9\xd1\xde\xc0\x88\x2d\x04\x0a\x78\x01\xa3\x00\xc7\xea\xc2\x6d\x78\xd2\xda\xff\x6b\xd4\x7c\xac\xa5\x00\xd4\x6c\x1b\x5a\x0b\x9e\x1a\xda\x0e\x7b\x60\x6b\x6f\xd6\xb3\x9d\xb8\x1c\x7c\x95\x4c\x04\xd4\xed\xe9\x80\xea\x2c\xa8\x0b\x11\x3b\xdb\x4b\xe7\x47\xe1\xb6\xdc\x92\x81\xd7\x7e\x85\x68\x3a\xaa\xc6\x53\x4c", 112); *(uint8_t*)0x2000000068c5 = 9; *(uint8_t*)0x2000000068c6 = 5; *(uint8_t*)0x2000000068c7 = 0xb; *(uint8_t*)0x2000000068c8 = 0xc; *(uint16_t*)0x2000000068c9 = 0x60e1; *(uint8_t*)0x2000000068cb = 0; *(uint8_t*)0x2000000068cc = 1; *(uint8_t*)0x2000000068cd = 7; *(uint8_t*)0x2000000068ce = 9; *(uint8_t*)0x2000000068cf = 5; *(uint8_t*)0x2000000068d0 = 0; *(uint8_t*)0x2000000068d1 = 0; *(uint16_t*)0x2000000068d2 = 0x10; *(uint8_t*)0x2000000068d4 = 5; *(uint8_t*)0x2000000068d5 = 1; *(uint8_t*)0x2000000068d6 = 0x77; *(uint8_t*)0x2000000068d7 = 9; *(uint8_t*)0x2000000068d8 = 5; *(uint8_t*)0x2000000068d9 = 5; *(uint8_t*)0x2000000068da = 0; *(uint16_t*)0x2000000068db = 0x208; *(uint8_t*)0x2000000068dd = 0x1b; *(uint8_t*)0x2000000068de = 9; *(uint8_t*)0x2000000068df = 7; *(uint8_t*)0x2000000068e0 = 9; *(uint8_t*)0x2000000068e1 = 5; *(uint8_t*)0x2000000068e2 = 0xf; *(uint8_t*)0x2000000068e3 = 0; *(uint16_t*)0x2000000068e4 = 0x40; *(uint8_t*)0x2000000068e6 = 0x30; *(uint8_t*)0x2000000068e7 = 5; *(uint8_t*)0x2000000068e8 = 7; *(uint8_t*)0x2000000068e9 = 0x50; *(uint8_t*)0x2000000068ea = 6; memcpy((void*)0x2000000068eb, "\x01\x1d\xaf\x9a\xd3\xae\xa9\x56\xd0\x18\x4e\x89\x07\xd7\xb0\xb0\xa6\xaa\x9e\x92\x1a\xc6\x4d\x7a\x9e\x5a\x0c\xe5\xb5\xe0\xaf\xb4\x78\x68\xc9\xc4\xa7\x6b\x65\x09\x83\x5b\xf9\xee\x45\xa7\x89\x1e\xaa\xd1\x72\xa8\x75\x63\x4f\x7f\x36\x26\x01\x24\x66\x9b\x2d\x1b\x04\xc2\xfd\xa3\x8c\xc9\x36\x92\x1c\xb5\x61\x24\x5e\xfa", 78); *(uint8_t*)0x200000006939 = 0xb7; *(uint8_t*)0x20000000693a = 0x21; memcpy((void*)0x20000000693b, "\x53\x54\x2a\x37\x44\x9c\x9d\x1a\x4e\x69\x6a\x99\x52\x7d\x5a\xd5\xbd\xad\x1c\x7e\x72\x41\x28\xdf\x50\x29\x5a\xa0\xc6\x14\x01\xca\x6c\xd5\xcd\x35\x69\x77\xf6\x17\xe8\xb1\x14\x48\x46\x62\x69\x11\x6a\xf9\x3b\x9d\xce\x05\xde\xd4\x87\x92\x71\x9f\x65\xbf\xa9\x1d\xa1\x6b\x85\xee\x1d\x62\x36\x08\x4d\x81\x70\xf9\x7c\x0a\x74\xf1\x02\x66\x3c\x64\x5b\x0e\xe1\xb0\xfa\x79\x04\xe6\x46\x43\x8d\x8b\x16\x21\x86\x04\x56\x1c\x1a\xbb\x98\x28\x9e\x3e\xcb\xa8\x8e\x78\xf6\x73\x61\x47\x87\x74\x46\x2a\x4d\x82\x74\x96\x46\x45\x20\x04\xb2\x48\x20\x82\xe9\xc1\xb2\xf2\x97\x24\x19\xf6\xf7\x52\xe1\xbe\xc5\xe1\x92\x5f\xce\x21\x5e\xdb\x82\x65\x34\x4d\xa8\x5b\x85\x16\x4d\xb3\xc6\x33\xe4\xe4\x31\xfe\xc4\xc6\x09\x66\x4e\xac\x2b\x6b\x1f\x5f\x7b\xdc\x10", 181); *(uint8_t*)0x2000000069f0 = 9; *(uint8_t*)0x2000000069f1 = 5; *(uint8_t*)0x2000000069f2 = 0xc; *(uint8_t*)0x2000000069f3 = 0x10; *(uint16_t*)0x2000000069f4 = 0x10; *(uint8_t*)0x2000000069f6 = 3; *(uint8_t*)0x2000000069f7 = 0xf9; *(uint8_t*)0x2000000069f8 = -1; *(uint8_t*)0x2000000069f9 = 0xba; *(uint8_t*)0x2000000069fa = 0x23; memcpy((void*)0x2000000069fb, "\x5c\x48\xa5\x1f\x46\xfa\x07\x8d\x84\xce\x43\x4e\x72\x2a\x7f\xa4\xe7\x02\x1a\xe9\xd9\xb7\x66\x77\x36\x6d\xe6\xa1\x0a\xb3\xe9\x4e\x09\x69\xd7\xfc\x2a\x24\x53\x6e\x11\x50\xd9\x46\x72\xc5\x41\x8b\x02\x95\x1d\xef\x7e\x20\xc7\xdf\xe0\xaa\x26\xad\xbf\x0b\xfd\x8f\x6d\xd3\x51\xfa\x30\x99\x07\x13\x53\x71\x34\xaf\x9c\x14\xfa\x84\xde\xe2\xb9\x5a\xf8\xe1\x34\x54\x2b\x5a\x1a\xd5\x40\x32\x9a\x97\xcb\xdd\x1a\x24\x22\xf1\x3e\x6e\x03\xb4\x9f\x71\x05\xa6\xbf\x49\x00\xea\x72\x3f\xbe\x14\xf2\x1d\x18\x2a\xee\xf2\xcf\x51\x62\x59\x1f\x8b\xd3\x8b\x85\xd4\x5d\x72\x3c\xef\x02\x13\x2b\x5e\x45\x46\x7d\xd8\xd4\x30\xc3\x78\xb8\xbf\x2d\x98\x40\x32\x67\x01\x03\x79\xde\x7b\xd0\x4c\x80\x0d\xfd\x5f\xae\x0c\x0d\xda\xc0\xb5\xcf\xfd\xe9\x8c\xa4\x00\xdc\xe3\x0d\xdd", 184); *(uint8_t*)0x200000006ab3 = 9; *(uint8_t*)0x200000006ab4 = 4; *(uint8_t*)0x200000006ab5 = 0xfc; *(uint8_t*)0x200000006ab6 = 4; *(uint8_t*)0x200000006ab7 = 1; *(uint8_t*)0x200000006ab8 = -1; *(uint8_t*)0x200000006ab9 = 6; *(uint8_t*)0x200000006aba = 0x39; *(uint8_t*)0x200000006abb = 0xc; *(uint8_t*)0x200000006abc = 9; *(uint8_t*)0x200000006abd = 5; *(uint8_t*)0x200000006abe = 0; *(uint8_t*)0x200000006abf = 2; *(uint16_t*)0x200000006ac0 = 0x400; *(uint8_t*)0x200000006ac2 = 9; *(uint8_t*)0x200000006ac3 = 0xdf; *(uint8_t*)0x200000006ac4 = 2; *(uint8_t*)0x200000006ac5 = 7; *(uint8_t*)0x200000006ac6 = 0x25; *(uint8_t*)0x200000006ac7 = 1; *(uint8_t*)0x200000006ac8 = 3; *(uint8_t*)0x200000006ac9 = 8; *(uint16_t*)0x200000006aca = 0x8000; *(uint8_t*)0x200000006acc = 9; *(uint8_t*)0x200000006acd = 4; *(uint8_t*)0x200000006ace = 0x9d; *(uint8_t*)0x200000006acf = 1; *(uint8_t*)0x200000006ad0 = 3; *(uint8_t*)0x200000006ad1 = 0x48; *(uint8_t*)0x200000006ad2 = 0x48; *(uint8_t*)0x200000006ad3 = 0x40; *(uint8_t*)0x200000006ad4 = 0xa; *(uint8_t*)0x200000006ad5 = 9; *(uint8_t*)0x200000006ad6 = 5; *(uint8_t*)0x200000006ad7 = 1; *(uint8_t*)0x200000006ad8 = 0x10; *(uint16_t*)0x200000006ad9 = 0x40; *(uint8_t*)0x200000006adb = 2; *(uint8_t*)0x200000006adc = 0xf1; *(uint8_t*)0x200000006add = 0xc; *(uint8_t*)0x200000006ade = 7; *(uint8_t*)0x200000006adf = 0x25; *(uint8_t*)0x200000006ae0 = 1; *(uint8_t*)0x200000006ae1 = 0x81; *(uint8_t*)0x200000006ae2 = 0x81; *(uint16_t*)0x200000006ae3 = 5; *(uint8_t*)0x200000006ae5 = 9; *(uint8_t*)0x200000006ae6 = 5; *(uint8_t*)0x200000006ae7 = 7; *(uint8_t*)0x200000006ae8 = 8; *(uint16_t*)0x200000006ae9 = 0x40; *(uint8_t*)0x200000006aeb = 6; *(uint8_t*)0x200000006aec = 0; *(uint8_t*)0x200000006aed = 1; *(uint8_t*)0x200000006aee = 7; *(uint8_t*)0x200000006aef = 0x25; *(uint8_t*)0x200000006af0 = 1; *(uint8_t*)0x200000006af1 = 2; *(uint8_t*)0x200000006af2 = 0; *(uint16_t*)0x200000006af3 = 0x10; *(uint8_t*)0x200000006af5 = 6; *(uint8_t*)0x200000006af6 = 0xe; memcpy((void*)0x200000006af7, "\x55\x5d\xc7\x8c", 4); *(uint8_t*)0x200000006afb = 9; *(uint8_t*)0x200000006afc = 5; *(uint8_t*)0x200000006afd = 5; *(uint8_t*)0x200000006afe = 4; *(uint16_t*)0x200000006aff = 0x200; *(uint8_t*)0x200000006b01 = 9; *(uint8_t*)0x200000006b02 = 0x40; *(uint8_t*)0x200000006b03 = 3; *(uint32_t*)0x200000006c00 = 0xa; *(uint64_t*)0x200000006c04 = 0x200000006b40; *(uint8_t*)0x200000006b40 = 0xa; *(uint8_t*)0x200000006b41 = 6; *(uint16_t*)0x200000006b42 = 0x200; *(uint8_t*)0x200000006b44 = 0x3b; *(uint8_t*)0x200000006b45 = 5; *(uint8_t*)0x200000006b46 = 9; *(uint8_t*)0x200000006b47 = 0x40; *(uint8_t*)0x200000006b48 = 0xa4; *(uint8_t*)0x200000006b49 = 0; *(uint32_t*)0x200000006c0c = 0x30; *(uint64_t*)0x200000006c10 = 0x200000006b80; *(uint8_t*)0x200000006b80 = 5; *(uint8_t*)0x200000006b81 = 0xf; *(uint16_t*)0x200000006b82 = 0x30; *(uint8_t*)0x200000006b84 = 3; *(uint8_t*)0x200000006b85 = 3; *(uint8_t*)0x200000006b86 = 0x10; *(uint8_t*)0x200000006b87 = 0xb; *(uint8_t*)0x200000006b88 = 0x10; *(uint8_t*)0x200000006b89 = 0x10; *(uint8_t*)0x200000006b8a = 0xa; *(uint8_t*)0x200000006b8b = 0x1c; STORE_BY_BITMASK(uint32_t, , 0x200000006b8c, 1, 0, 5); STORE_BY_BITMASK(uint32_t, , 0x200000006b8c, 0x7ffffd3, 5, 27); *(uint16_t*)0x200000006b90 = 0xff00; *(uint16_t*)0x200000006b92 = 0x1fb; *(uint32_t*)0x200000006b94 = 0; *(uint8_t*)0x200000006b98 = 0x18; *(uint8_t*)0x200000006b99 = 0x10; *(uint8_t*)0x200000006b9a = 0xa; *(uint8_t*)0x200000006b9b = 0xf; STORE_BY_BITMASK(uint32_t, , 0x200000006b9c, 3, 0, 5); STORE_BY_BITMASK(uint32_t, , 0x200000006b9c, 8, 5, 27); *(uint16_t*)0x200000006ba0 = 0xff00; *(uint16_t*)0x200000006ba2 = 0xd00; *(uint32_t*)0x200000006ba4 = 0; *(uint32_t*)0x200000006ba8 = 0xffc0cf; *(uint32_t*)0x200000006bac = 0xff0000; *(uint32_t*)0x200000006c18 = 1; *(uint32_t*)0x200000006c1c = 4; *(uint64_t*)0x200000006c20 = 0x200000006bc0; *(uint8_t*)0x200000006bc0 = 4; *(uint8_t*)0x200000006bc1 = 3; *(uint16_t*)0x200000006bc2 = 0x42f; res = -1; res = syz_usb_connect(/*speed=USB_SPEED_HIGH*/3, /*dev_len=*/0x504, /*dev=*/0x200000006600, /*conn_descs=*/0x200000006c00); if (res != -1) r[37] = res; break; case 55: *(uint8_t*)0x200000006c40 = 0x12; *(uint8_t*)0x200000006c41 = 1; *(uint16_t*)0x200000006c42 = 0x200; *(uint8_t*)0x200000006c44 = -1; *(uint8_t*)0x200000006c45 = -1; *(uint8_t*)0x200000006c46 = -1; *(uint8_t*)0x200000006c47 = 0x40; *(uint16_t*)0x200000006c48 = 0xcf3; *(uint16_t*)0x200000006c4a = 0x9271; *(uint16_t*)0x200000006c4c = 0x108; *(uint8_t*)0x200000006c4e = 1; *(uint8_t*)0x200000006c4f = 2; *(uint8_t*)0x200000006c50 = 3; *(uint8_t*)0x200000006c51 = 1; *(uint8_t*)0x200000006c52 = 9; *(uint8_t*)0x200000006c53 = 2; *(uint16_t*)0x200000006c54 = 0x48; *(uint8_t*)0x200000006c56 = 1; *(uint8_t*)0x200000006c57 = 1; *(uint8_t*)0x200000006c58 = 0; *(uint8_t*)0x200000006c59 = 0x80; *(uint8_t*)0x200000006c5a = 0xfa; *(uint8_t*)0x200000006c5b = 9; *(uint8_t*)0x200000006c5c = 4; *(uint8_t*)0x200000006c5d = 0; *(uint8_t*)0x200000006c5e = 0; *(uint8_t*)0x200000006c5f = 6; *(uint8_t*)0x200000006c60 = -1; *(uint8_t*)0x200000006c61 = 0; *(uint8_t*)0x200000006c62 = 0; *(uint8_t*)0x200000006c63 = 0; *(uint8_t*)0x200000006c64 = 9; *(uint8_t*)0x200000006c65 = 5; *(uint8_t*)0x200000006c66 = 1; *(uint8_t*)0x200000006c67 = 2; *(uint16_t*)0x200000006c68 = 0x200; *(uint8_t*)0x200000006c6a = 0; *(uint8_t*)0x200000006c6b = 0; *(uint8_t*)0x200000006c6c = 0; *(uint8_t*)0x200000006c6d = 9; *(uint8_t*)0x200000006c6e = 5; *(uint8_t*)0x200000006c6f = 0x82; *(uint8_t*)0x200000006c70 = 2; *(uint16_t*)0x200000006c71 = 0x200; *(uint8_t*)0x200000006c73 = 0; *(uint8_t*)0x200000006c74 = 0; *(uint8_t*)0x200000006c75 = 0; *(uint8_t*)0x200000006c76 = 9; *(uint8_t*)0x200000006c77 = 5; *(uint8_t*)0x200000006c78 = 0x83; *(uint8_t*)0x200000006c79 = 3; *(uint16_t*)0x200000006c7a = 0x40; *(uint8_t*)0x200000006c7c = 1; *(uint8_t*)0x200000006c7d = 0; *(uint8_t*)0x200000006c7e = 0; *(uint8_t*)0x200000006c7f = 9; *(uint8_t*)0x200000006c80 = 5; *(uint8_t*)0x200000006c81 = 4; *(uint8_t*)0x200000006c82 = 3; *(uint16_t*)0x200000006c83 = 0x40; *(uint8_t*)0x200000006c85 = 1; *(uint8_t*)0x200000006c86 = 0; *(uint8_t*)0x200000006c87 = 0; *(uint8_t*)0x200000006c88 = 9; *(uint8_t*)0x200000006c89 = 5; *(uint8_t*)0x200000006c8a = 5; *(uint8_t*)0x200000006c8b = 2; *(uint16_t*)0x200000006c8c = 0x200; *(uint8_t*)0x200000006c8e = 0; *(uint8_t*)0x200000006c8f = 0; *(uint8_t*)0x200000006c90 = 0; *(uint8_t*)0x200000006c91 = 9; *(uint8_t*)0x200000006c92 = 5; *(uint8_t*)0x200000006c93 = 6; *(uint8_t*)0x200000006c94 = 2; *(uint16_t*)0x200000006c95 = 0x200; *(uint8_t*)0x200000006c97 = 0; *(uint8_t*)0x200000006c98 = 0; *(uint8_t*)0x200000006c99 = 0; res = -1; res = syz_usb_connect_ath9k(/*speed=*/3, /*dev_len=*/0x5a, /*dev=*/0x200000006c40, /*conn_descs=*/0); if (res != -1) r[38] = res; break; case 56: *(uint8_t*)0x200000006cc0 = 0x12; *(uint8_t*)0x200000006cc1 = 1; *(uint16_t*)0x200000006cc2 = 0x310; *(uint8_t*)0x200000006cc4 = 2; *(uint8_t*)0x200000006cc5 = 0; *(uint8_t*)0x200000006cc6 = 0; *(uint8_t*)0x200000006cc7 = 8; *(uint16_t*)0x200000006cc8 = 0x525; *(uint16_t*)0x200000006cca = 0xa4a1; *(uint16_t*)0x200000006ccc = 0x40; *(uint8_t*)0x200000006cce = 1; *(uint8_t*)0x200000006ccf = 2; *(uint8_t*)0x200000006cd0 = 3; *(uint8_t*)0x200000006cd1 = 1; *(uint8_t*)0x200000006cd2 = 9; *(uint8_t*)0x200000006cd3 = 2; *(uint16_t*)0x200000006cd4 = 0x7d; *(uint8_t*)0x200000006cd6 = 1; *(uint8_t*)0x200000006cd7 = 1; *(uint8_t*)0x200000006cd8 = 6; *(uint8_t*)0x200000006cd9 = 0x10; *(uint8_t*)0x200000006cda = 0xb; *(uint8_t*)0x200000006cdb = 9; *(uint8_t*)0x200000006cdc = 4; *(uint8_t*)0x200000006cdd = 0; *(uint8_t*)0x200000006cde = 4; *(uint8_t*)0x200000006cdf = 3; *(uint8_t*)0x200000006ce0 = 2; *(uint8_t*)0x200000006ce1 = 6; *(uint8_t*)0x200000006ce2 = 0; *(uint8_t*)0x200000006ce3 = 0xe; *(uint8_t*)0x200000006ce4 = 0xb; *(uint8_t*)0x200000006ce5 = 0x24; *(uint8_t*)0x200000006ce6 = 6; *(uint8_t*)0x200000006ce7 = 0; *(uint8_t*)0x200000006ce8 = 0; memcpy((void*)0x200000006ce9, "\xd6\x01\x32\xf1\x49\xc6", 6); *(uint8_t*)0x200000006cef = 5; *(uint8_t*)0x200000006cf0 = 0x24; *(uint8_t*)0x200000006cf1 = 0; *(uint16_t*)0x200000006cf2 = 0xbb8; *(uint8_t*)0x200000006cf4 = 0xd; *(uint8_t*)0x200000006cf5 = 0x24; *(uint8_t*)0x200000006cf6 = 0xf; *(uint8_t*)0x200000006cf7 = 1; *(uint32_t*)0x200000006cf8 = 7; *(uint16_t*)0x200000006cfc = 0x32a; *(uint16_t*)0x200000006cfe = 8; *(uint8_t*)0x200000006d00 = 0x1f; *(uint8_t*)0x200000006d01 = 5; *(uint8_t*)0x200000006d02 = 0x24; *(uint8_t*)0x200000006d03 = 0x15; *(uint16_t*)0x200000006d04 = 0x101; *(uint8_t*)0x200000006d06 = 0x15; *(uint8_t*)0x200000006d07 = 0x24; *(uint8_t*)0x200000006d08 = 0x12; *(uint16_t*)0x200000006d09 = 0xfffc; *(uint64_t*)0x200000006d0b = 0x14f5e048ba817a3; *(uint64_t*)0x200000006d13 = 0x2a397ecbffc007a6; *(uint8_t*)0x200000006d1b = 7; *(uint8_t*)0x200000006d1c = 0x24; *(uint8_t*)0x200000006d1d = 0xa; *(uint8_t*)0x200000006d1e = 0xb; *(uint8_t*)0x200000006d1f = 9; *(uint8_t*)0x200000006d20 = 0xf; *(uint8_t*)0x200000006d21 = 2; *(uint8_t*)0x200000006d22 = 5; *(uint8_t*)0x200000006d23 = 0x24; *(uint8_t*)0x200000006d24 = 1; *(uint8_t*)0x200000006d25 = 1; *(uint8_t*)0x200000006d26 = -1; *(uint8_t*)0x200000006d27 = 5; *(uint8_t*)0x200000006d28 = 0x24; *(uint8_t*)0x200000006d29 = 0x15; *(uint16_t*)0x200000006d2a = 0x7ff; *(uint8_t*)0x200000006d2c = 8; *(uint8_t*)0x200000006d2d = 0x24; *(uint8_t*)0x200000006d2e = 0x1c; *(uint16_t*)0x200000006d2f = 5; *(uint8_t*)0x200000006d31 = 0x32; *(uint16_t*)0x200000006d32 = 0xa; *(uint8_t*)0x200000006d34 = 9; *(uint8_t*)0x200000006d35 = 5; *(uint8_t*)0x200000006d36 = 0x81; *(uint8_t*)0x200000006d37 = 3; *(uint16_t*)0x200000006d38 = 0x10; *(uint8_t*)0x200000006d3a = 7; *(uint8_t*)0x200000006d3b = 0x99; *(uint8_t*)0x200000006d3c = 0xb2; *(uint8_t*)0x200000006d3d = 9; *(uint8_t*)0x200000006d3e = 5; *(uint8_t*)0x200000006d3f = 0x82; *(uint8_t*)0x200000006d40 = 2; *(uint16_t*)0x200000006d41 = 8; *(uint8_t*)0x200000006d43 = 0x1a; *(uint8_t*)0x200000006d44 = 7; *(uint8_t*)0x200000006d45 = 0xc4; *(uint8_t*)0x200000006d46 = 9; *(uint8_t*)0x200000006d47 = 5; *(uint8_t*)0x200000006d48 = 3; *(uint8_t*)0x200000006d49 = 2; *(uint16_t*)0x200000006d4a = 0x3ff; *(uint8_t*)0x200000006d4c = 0xa6; *(uint8_t*)0x200000006d4d = 3; *(uint8_t*)0x200000006d4e = 0xa7; *(uint32_t*)0x200000007240 = 0xa; *(uint64_t*)0x200000007244 = 0x200000006d80; *(uint8_t*)0x200000006d80 = 0xa; *(uint8_t*)0x200000006d81 = 6; *(uint16_t*)0x200000006d82 = 0x300; *(uint8_t*)0x200000006d84 = 0xfb; *(uint8_t*)0x200000006d85 = 3; *(uint8_t*)0x200000006d86 = 0xc; *(uint8_t*)0x200000006d87 = -1; *(uint8_t*)0x200000006d88 = 1; *(uint8_t*)0x200000006d89 = 0; *(uint32_t*)0x20000000724c = 0x3c; *(uint64_t*)0x200000007250 = 0x200000006dc0; *(uint8_t*)0x200000006dc0 = 5; *(uint8_t*)0x200000006dc1 = 0xf; *(uint16_t*)0x200000006dc2 = 0x3c; *(uint8_t*)0x200000006dc4 = 6; *(uint8_t*)0x200000006dc5 = 7; *(uint8_t*)0x200000006dc6 = 0x10; *(uint8_t*)0x200000006dc7 = 2; STORE_BY_BITMASK(uint32_t, , 0x200000006dc8, 4, 0, 8); STORE_BY_BITMASK(uint32_t, , 0x200000006dc9, 7, 0, 4); STORE_BY_BITMASK(uint32_t, , 0x200000006dc9, 7, 4, 4); STORE_BY_BITMASK(uint32_t, , 0x200000006dca, 0x56a9, 0, 16); *(uint8_t*)0x200000006dcc = 0xb; *(uint8_t*)0x200000006dcd = 0x10; *(uint8_t*)0x200000006dce = 1; *(uint8_t*)0x200000006dcf = 4; *(uint16_t*)0x200000006dd0 = 0x42; *(uint8_t*)0x200000006dd2 = 2; *(uint8_t*)0x200000006dd3 = 3; *(uint16_t*)0x200000006dd4 = 0x63ac; *(uint8_t*)0x200000006dd6 = 9; *(uint8_t*)0x200000006dd7 = 3; *(uint8_t*)0x200000006dd8 = 0x10; *(uint8_t*)0x200000006dd9 = 0xb; *(uint8_t*)0x200000006dda = 7; *(uint8_t*)0x200000006ddb = 0x10; *(uint8_t*)0x200000006ddc = 2; STORE_BY_BITMASK(uint32_t, , 0x200000006ddd, 0x1a, 0, 8); STORE_BY_BITMASK(uint32_t, , 0x200000006dde, 7, 0, 4); STORE_BY_BITMASK(uint32_t, , 0x200000006dde, 0xb, 4, 4); STORE_BY_BITMASK(uint32_t, , 0x200000006ddf, 0xd5, 0, 16); *(uint8_t*)0x200000006de1 = 0x10; *(uint8_t*)0x200000006de2 = 0x10; *(uint8_t*)0x200000006de3 = 0xa; *(uint8_t*)0x200000006de4 = 0x7f; STORE_BY_BITMASK(uint32_t, , 0x200000006de5, 1, 0, 5); STORE_BY_BITMASK(uint32_t, , 0x200000006de5, 0x12f, 5, 27); *(uint16_t*)0x200000006de9 = 0xf00; *(uint16_t*)0x200000006deb = 1; *(uint32_t*)0x200000006ded = 0x3fc0; *(uint8_t*)0x200000006df1 = 0xb; *(uint8_t*)0x200000006df2 = 0x10; *(uint8_t*)0x200000006df3 = 1; *(uint8_t*)0x200000006df4 = 8; *(uint16_t*)0x200000006df5 = 0x40; *(uint8_t*)0x200000006df7 = 7; *(uint8_t*)0x200000006df8 = 5; *(uint16_t*)0x200000006df9 = 2; *(uint8_t*)0x200000006dfb = 4; *(uint32_t*)0x200000007258 = 8; *(uint32_t*)0x20000000725c = 0x78; *(uint64_t*)0x200000007260 = 0x200000006e00; *(uint8_t*)0x200000006e00 = 0x78; *(uint8_t*)0x200000006e01 = 3; memcpy((void*)0x200000006e02, "\xd7\xb4\xca\xdb\x72\xdc\xe2\x7c\xa7\xfb\x52\x09\xaa\xd1\xb3\x58\x5c\x81\x88\xf0\x61\x26\xd3\xf1\x8e\xdd\x4c\xfa\x47\xad\xdb\xd2\xa6\x71\x5d\xd4\xad\xfa\x69\x7f\x02\xbc\xb0\x89\xed\x20\x13\x26\x88\x85\xf9\xc7\x85\xbd\x7c\x5d\x4e\xe5\x0d\xe3\xce\xcd\x7a\x9d\x0b\x7b\x2e\x70\x82\x26\xe8\xac\xb1\xe9\x08\xb1\xf5\xc0\xc2\xa8\x13\x24\x65\xe4\x51\xfe\x49\xf1\x5e\x60\xc8\xd3\xb9\xc8\x43\x05\xd0\xdd\x8f\x63\x44\x80\x05\x02\x59\xca\xc3\xce\x9c\xfc\x95\x09\x2b\xd7\xe4\x91\x86\x6d", 118); *(uint32_t*)0x200000007268 = 0x13; *(uint64_t*)0x20000000726c = 0x200000006e80; *(uint8_t*)0x200000006e80 = 0x13; *(uint8_t*)0x200000006e81 = 3; memcpy((void*)0x200000006e82, "\x7d\x97\xd9\xeb\x8a\xf2\x94\x3b\x99\x85\xd3\x0c\xaa\xea\xd8\x9b\x5a", 17); *(uint32_t*)0x200000007274 = 4; *(uint64_t*)0x200000007278 = 0x200000006ec0; *(uint8_t*)0x200000006ec0 = 4; *(uint8_t*)0x200000006ec1 = 3; *(uint16_t*)0x200000006ec2 = 0x44a; *(uint32_t*)0x200000007280 = 4; *(uint64_t*)0x200000007284 = 0x200000006f00; *(uint8_t*)0x200000006f00 = 4; *(uint8_t*)0x200000006f01 = 3; *(uint16_t*)0x200000006f02 = 0x1c09; *(uint32_t*)0x20000000728c = 0x93; *(uint64_t*)0x200000007290 = 0x200000006f40; *(uint8_t*)0x200000006f40 = 0x93; *(uint8_t*)0x200000006f41 = 3; memcpy((void*)0x200000006f42, "\xa7\xe5\x52\x92\x38\xf7\x96\xc9\x00\x0c\x75\x3f\x41\xb8\x18\x31\x40\xf3\x91\x4b\x76\xbf\x1c\x42\x8e\xbe\x8d\x39\xc6\xf0\x72\xb4\x81\xec\xad\x74\x62\x74\xe7\xc5\x38\x79\x0d\x8c\x73\x0d\x20\x51\x7a\x22\x44\xa3\x78\x1b\x11\x5c\x07\xd4\x0e\x9e\xc9\xc0\x59\xf1\x2d\x0d\x15\xf4\x6c\xcf\x0c\xde\x26\xef\xa9\xd0\x2a\x11\x9e\x2c\xc5\x62\x7c\x7f\x42\x41\x24\x4d\x08\x43\xef\x00\x18\xb1\x2f\xc3\xcd\x46\x7b\x5f\xdc\xe5\x8a\x69\x75\xd0\x7a\xc3\x52\xa4\x2f\x16\x15\x17\x8d\xcb\x09\x90\xae\xca\x46\x46\x13\x06\x81\x6b\xec\xde\xb8\x96\xba\xc7\x65\xde\xd8\x1e\xbd\x75\xba\x4d\x97\x22\x9b\x15\xa9", 145); *(uint32_t*)0x200000007298 = 0xc2; *(uint64_t*)0x20000000729c = 0x200000007000; *(uint8_t*)0x200000007000 = 0xc2; *(uint8_t*)0x200000007001 = 3; memcpy((void*)0x200000007002, "\xd5\xa3\xd4\x83\x01\x2b\x31\xe4\x9d\xfa\x33\xfd\x95\x93\xb4\xb6\x68\xaa\x6f\x3f\x39\x30\x18\x37\xd9\x51\xda\xf2\x56\x31\x68\x19\xf5\xe7\x1f\xa6\x51\xbb\x06\xb2\xaf\x65\xaf\x27\xc7\xbf\x0f\xda\x1e\xaa\x1e\x32\x23\x1b\x75\xf4\xd0\x6d\x49\x23\xc7\x60\x13\xe9\xd7\x6a\x12\x20\x28\x16\xff\x87\x40\xa9\xfb\x4f\x2e\xce\xb2\x7b\xd2\xe1\xab\x1e\x7b\xd4\xba\x73\x14\xb3\x3d\x15\xe0\xfe\x65\xaa\x2b\x2e\x7f\xfb\x32\x36\xcb\x61\x54\x93\x39\x1f\xea\xb3\xbf\xb8\x28\x18\x2f\xb6\x0c\x4f\xd6\xfe\xf4\x22\xe1\x06\xf3\x84\xbe\x63\x39\x05\xca\x1a\xaf\x83\xd9\xdd\xb2\xa2\x90\x2e\x2a\x11\x7d\xe4\xe5\x96\x14\x58\x09\xb3\xb3\x4b\x1e\xa4\x32\xb4\x12\x39\x1f\xfb\x25\xac\x25\x5e\x7d\xa1\x1d\x99\x4e\x7e\x9e\x98\xe0\x72\x3a\x27\x57\xe5\x80\x95\x9d\xae\x6f\xa7\xac\x2a\xfb\x8d\xc5\x38\x4b\x4a", 192); *(uint32_t*)0x2000000072a4 = 0x5b; *(uint64_t*)0x2000000072a8 = 0x200000007100; *(uint8_t*)0x200000007100 = 0x5b; *(uint8_t*)0x200000007101 = 3; memcpy((void*)0x200000007102, "\xa7\x94\x09\x09\x68\xe4\x6e\x97\xb7\x26\x9f\xca\xe0\xf8\x18\xbf\x9a\x99\xa5\x0d\xe6\x0e\x5c\xda\x68\x47\x21\xbe\x6d\xc3\x48\x20\xf9\x12\xc3\x38\xd7\xdc\x8a\xc5\x0d\x93\xfc\x92\xa2\xeb\xde\x1a\x02\x65\x20\x89\x72\x66\x08\xa9\xe5\x87\x7f\x4c\xac\xf9\x1b\x9e\xec\x5b\x5e\xb2\xfc\x7f\xa7\xbb\x3d\x26\x60\x75\x37\xf0\xe5\x5d\x00\x79\x3e\x7c\xf1\x3b\xbb\x36\x7e", 89); *(uint32_t*)0x2000000072b0 = 0x90; *(uint64_t*)0x2000000072b4 = 0x200000007180; *(uint8_t*)0x200000007180 = 0x90; *(uint8_t*)0x200000007181 = 3; memcpy((void*)0x200000007182, "\xf9\x92\x6b\x0d\xae\x8c\x46\x23\x52\x10\x5e\xd1\xc4\xd3\xff\x50\xcc\x9c\xe9\x82\xc3\x97\xe9\x2e\x57\x61\x01\x31\x71\x90\xc2\x32\x7a\x2b\xa7\x23\x84\x41\x49\xe5\x5f\x4b\x96\x1d\x0f\x0d\xef\xbc\x7e\xdb\x70\xf5\xd6\x11\x69\x07\x42\x65\xac\xd8\x1c\xee\xc5\xa1\x5b\x66\xa5\xe5\x00\x92\x36\xd0\x62\x99\x4a\xf9\xaf\xcb\xe0\x47\x36\xaa\xad\x6b\xb5\x5c\xb3\x0e\x05\x7c\x42\xd0\xdf\x74\x81\x60\x3c\x3c\x95\x9b\x5e\x4e\x20\xf0\x53\x82\xa9\xd9\xad\x4c\x01\x68\x0a\xe3\x59\x7e\xf4\x03\xde\xdf\x0b\x6c\x53\xfd\xc7\x0d\x13\xed\x11\x6e\xf9\xea\x90\x20\x93\xf1\xc9\xf4\xaf\x4c\xec\x25", 142); res = -1; res = syz_usb_connect(/*speed=USB_SPEED_SUPER_PLUS*/6, /*dev_len=*/0x8f, /*dev=*/0x200000006cc0, /*conn_descs=*/0x200000007240); if (res != -1) r[39] = res; break; case 57: *(uint32_t*)0x200000007480 = 0x2c; *(uint64_t*)0x200000007484 = 0x2000000072c0; *(uint8_t*)0x2000000072c0 = 0x40; *(uint8_t*)0x2000000072c1 = 7; *(uint32_t*)0x2000000072c2 = 0x1b; *(uint8_t*)0x2000000072c6 = 0x1b; *(uint8_t*)0x2000000072c7 = 0xa; memcpy((void*)0x2000000072c8, "\x90\x73\x0f\x1d\x9e\x91\xd2\xe1\xdf\x57\x71\x43\xe1\x8c\x68\x0e\xac\xe6\xd6\xc1\x22\x99\x24\x61\x28", 25); *(uint64_t*)0x20000000748c = 0x200000007300; *(uint8_t*)0x200000007300 = 0; *(uint8_t*)0x200000007301 = 3; *(uint32_t*)0x200000007302 = 0x44; *(uint8_t*)0x200000007306 = 0x44; *(uint8_t*)0x200000007307 = 3; memcpy((void*)0x200000007308, "\x87\xd7\x4d\xd4\x60\x96\x80\x9a\x8f\x49\x88\xdd\xaa\x95\xa5\x32\xfb\xc2\x2d\x85\x85\xd1\x59\x28\x57\xad\x0a\xb0\x0c\x17\xa4\xfe\xf3\xb2\x29\xa0\x2f\xe0\xe3\x64\x93\x16\xbe\xd9\xf4\x4f\x58\x8b\x1f\x0b\x47\xbc\x86\x70\x51\x29\x44\x09\x38\xbd\x68\xa2\x9a\x84\xf8\x29", 66); *(uint64_t*)0x200000007494 = 0x200000007380; *(uint8_t*)0x200000007380 = 0; *(uint8_t*)0x200000007381 = 0xf; *(uint32_t*)0x200000007382 = 0x41; *(uint8_t*)0x200000007386 = 5; *(uint8_t*)0x200000007387 = 0xf; *(uint16_t*)0x200000007388 = 0x41; *(uint8_t*)0x20000000738a = 4; *(uint8_t*)0x20000000738b = 0x20; *(uint8_t*)0x20000000738c = 0x10; *(uint8_t*)0x20000000738d = 0xa; *(uint8_t*)0x20000000738e = 0; STORE_BY_BITMASK(uint32_t, , 0x20000000738f, 5, 0, 5); STORE_BY_BITMASK(uint32_t, , 0x20000000738f, 0xe85, 5, 27); *(uint16_t*)0x200000007393 = 0xf00; *(uint16_t*)0x200000007395 = 3; *(uint32_t*)0x200000007397 = 0xff00a0; *(uint32_t*)0x20000000739b = 0xff00f0; *(uint32_t*)0x20000000739f = 0x30; *(uint32_t*)0x2000000073a3 = 0xf; *(uint32_t*)0x2000000073a7 = 0xdfbf; *(uint8_t*)0x2000000073ab = 7; *(uint8_t*)0x2000000073ac = 0x10; *(uint8_t*)0x2000000073ad = 2; STORE_BY_BITMASK(uint32_t, , 0x2000000073ae, 4, 0, 8); STORE_BY_BITMASK(uint32_t, , 0x2000000073af, 4, 0, 4); STORE_BY_BITMASK(uint32_t, , 0x2000000073af, 1, 4, 4); STORE_BY_BITMASK(uint32_t, , 0x2000000073b0, 0xff, 0, 16); *(uint8_t*)0x2000000073b2 = 0xb; *(uint8_t*)0x2000000073b3 = 0x10; *(uint8_t*)0x2000000073b4 = 1; *(uint8_t*)0x2000000073b5 = 2; *(uint16_t*)0x2000000073b6 = 1; *(uint8_t*)0x2000000073b8 = 1; *(uint8_t*)0x2000000073b9 = 3; *(uint16_t*)0x2000000073ba = 9; *(uint8_t*)0x2000000073bc = 8; *(uint8_t*)0x2000000073bd = 0xa; *(uint8_t*)0x2000000073be = 0x10; *(uint8_t*)0x2000000073bf = 3; *(uint8_t*)0x2000000073c0 = 2; *(uint16_t*)0x2000000073c1 = 4; *(uint8_t*)0x2000000073c3 = 3; *(uint8_t*)0x2000000073c4 = 0xb6; *(uint16_t*)0x2000000073c5 = 5; *(uint64_t*)0x20000000749c = 0x200000007400; *(uint8_t*)0x200000007400 = 0x20; *(uint8_t*)0x200000007401 = 0x29; *(uint32_t*)0x200000007402 = 0xf; *(uint8_t*)0x200000007406 = 0xf; *(uint8_t*)0x200000007407 = 0x29; *(uint8_t*)0x200000007408 = 0xf; *(uint16_t*)0x200000007409 = 4; *(uint8_t*)0x20000000740b = 6; *(uint8_t*)0x20000000740c = 0x32; memcpy((void*)0x20000000740d, "\xb2\xc8\x4f\x72", 4); memcpy((void*)0x200000007411, "\xf5\xfb\x7b\x90", 4); *(uint64_t*)0x2000000074a4 = 0x200000007440; *(uint8_t*)0x200000007440 = 0x20; *(uint8_t*)0x200000007441 = 0x2a; *(uint32_t*)0x200000007442 = 0xc; *(uint8_t*)0x200000007446 = 0xc; *(uint8_t*)0x200000007447 = 0x2a; *(uint8_t*)0x200000007448 = 0x3a; *(uint16_t*)0x200000007449 = 0x60; *(uint8_t*)0x20000000744b = 4; *(uint8_t*)0x20000000744c = 4; *(uint8_t*)0x20000000744d = 7; *(uint16_t*)0x20000000744e = 0x8001; *(uint16_t*)0x200000007450 = 8; *(uint32_t*)0x200000007980 = 0x84; *(uint64_t*)0x200000007984 = 0x2000000074c0; *(uint8_t*)0x2000000074c0 = 0; *(uint8_t*)0x2000000074c1 = 0; *(uint32_t*)0x2000000074c2 = 0xcf; memcpy((void*)0x2000000074c6, "\x9f\x51\xc6\xee\x54\xbf\xc1\xfc\x30\xd7\x87\x49\x9a\xb2\x44\x93\xc2\xf3\x0f\x78\xfe\x08\x8e\x72\x4a\xd2\x9b\xad\xb6\xc2\x40\x68\x74\xa9\x09\xd8\x0e\x00\x00\x75\xbb\xe9\x2f\x6f\x4e\x8b\x35\x14\x48\x1d\x12\xb8\x69\xde\xb6\xf4\x7f\x3b\x45\x83\x69\xb7\xf0\x24\xfc\xc0\x23\x19\xe3\x8c\xb7\x46\x7c\x76\xb3\x70\xd3\x78\xee\x02\x56\xda\xa3\xac\xea\x1f\x71\xbe\x5e\x4c\x7d\x8a\x50\x03\x7b\xa8\x4e\x62\x44\x5b\xbd\x99\x0a\x26\xb4\x4f\x60\x19\x8d\x63\x50\x5f\xbf\x00\x5b\x96\x63\x7a\xbf\x5e\xb6\x92\xa2\xed\x0d\x58\x26\x92\xe3\xf2\x59\x38\x7e\xd9\xd1\x95\x59\x17\xdc\x53\xa2\x46\xeb\x20\xe2\x81\xe7\x83\x86\xed\x87\x34\xb8\x10\x75\xe4\x3b\x5b\x3e\x15\xea\x60\xdb\xd4\x97\xe0\x7a\xd8\x84\x79\x92\xdd\x87\x83\x1b\x20\xd0\x52\x63\xc1\x08\xd7\x01\x17\xe5\x21\x70\xef\xac\x17\x77\xd3\xd3\x76\x87\x63\x58\xc2\x29\x71\x72\xb2\xa0\x23\xb5\x2c\x05", 207); *(uint64_t*)0x20000000798c = 0x2000000075c0; *(uint8_t*)0x2000000075c0 = 0; *(uint8_t*)0x2000000075c1 = 0xa; *(uint32_t*)0x2000000075c2 = 1; *(uint8_t*)0x2000000075c6 = 2; *(uint64_t*)0x200000007994 = 0x200000007600; *(uint8_t*)0x200000007600 = 0; *(uint8_t*)0x200000007601 = 8; *(uint32_t*)0x200000007602 = 1; *(uint8_t*)0x200000007606 = 0xfc; *(uint64_t*)0x20000000799c = 0x200000007640; *(uint8_t*)0x200000007640 = 0x20; *(uint8_t*)0x200000007641 = 0; *(uint32_t*)0x200000007642 = 4; *(uint16_t*)0x200000007646 = 3; *(uint16_t*)0x200000007648 = 1; *(uint64_t*)0x2000000079a4 = 0x200000007680; *(uint8_t*)0x200000007680 = 0x20; *(uint8_t*)0x200000007681 = 0; *(uint32_t*)0x200000007682 = 4; *(uint16_t*)0x200000007686 = 0x1d20; *(uint16_t*)0x200000007688 = 0x20; *(uint64_t*)0x2000000079ac = 0x2000000076c0; *(uint8_t*)0x2000000076c0 = 0x40; *(uint8_t*)0x2000000076c1 = 7; *(uint32_t*)0x2000000076c2 = 2; *(uint16_t*)0x2000000076c6 = 0xfff8; *(uint64_t*)0x2000000079b4 = 0x200000007700; *(uint8_t*)0x200000007700 = 0x40; *(uint8_t*)0x200000007701 = 9; *(uint32_t*)0x200000007702 = 1; *(uint8_t*)0x200000007706 = 0xd; *(uint64_t*)0x2000000079bc = 0x200000007740; *(uint8_t*)0x200000007740 = 0x40; *(uint8_t*)0x200000007741 = 0xb; *(uint32_t*)0x200000007742 = 2; memcpy((void*)0x200000007746, "\x22\x89", 2); *(uint64_t*)0x2000000079c4 = 0x200000007780; *(uint8_t*)0x200000007780 = 0x40; *(uint8_t*)0x200000007781 = 0xf; *(uint32_t*)0x200000007782 = 2; *(uint16_t*)0x200000007786 = 2; *(uint64_t*)0x2000000079cc = 0x2000000077c0; *(uint8_t*)0x2000000077c0 = 0x40; *(uint8_t*)0x2000000077c1 = 0x13; *(uint32_t*)0x2000000077c2 = 6; memset((void*)0x2000000077c6, 255, 6); *(uint64_t*)0x2000000079d4 = 0x200000007800; *(uint8_t*)0x200000007800 = 0x40; *(uint8_t*)0x200000007801 = 0x17; *(uint32_t*)0x200000007802 = 6; memcpy((void*)0x200000007806, "\xee\xfa\x7a\x62\x01\x65", 6); *(uint64_t*)0x2000000079dc = 0x200000007840; *(uint8_t*)0x200000007840 = 0x40; *(uint8_t*)0x200000007841 = 0x19; *(uint32_t*)0x200000007842 = 2; memcpy((void*)0x200000007846, "\x01\xd3", 2); *(uint64_t*)0x2000000079e4 = 0x200000007880; *(uint8_t*)0x200000007880 = 0x40; *(uint8_t*)0x200000007881 = 0x1a; *(uint32_t*)0x200000007882 = 2; *(uint16_t*)0x200000007886 = 5; *(uint64_t*)0x2000000079ec = 0x2000000078c0; *(uint8_t*)0x2000000078c0 = 0x40; *(uint8_t*)0x2000000078c1 = 0x1c; *(uint32_t*)0x2000000078c2 = 1; *(uint8_t*)0x2000000078c6 = -1; *(uint64_t*)0x2000000079f4 = 0x200000007900; *(uint8_t*)0x200000007900 = 0x40; *(uint8_t*)0x200000007901 = 0x1e; *(uint32_t*)0x200000007902 = 1; *(uint8_t*)0x200000007906 = 0xf7; *(uint64_t*)0x2000000079fc = 0x200000007940; *(uint8_t*)0x200000007940 = 0x40; *(uint8_t*)0x200000007941 = 0x21; *(uint32_t*)0x200000007942 = 1; *(uint8_t*)0x200000007946 = 0xb; syz_usb_control_io(/*fd=*/r[39], /*descs=*/0x200000007480, /*resps=*/0x200000007980); break; case 58: syz_usb_disconnect(/*fd=*/r[38]); break; case 59: *(uint8_t*)0x200000007a40 = 0x12; *(uint8_t*)0x200000007a41 = 1; *(uint16_t*)0x200000007a42 = 0x110; *(uint8_t*)0x200000007a44 = 0; *(uint8_t*)0x200000007a45 = 0; *(uint8_t*)0x200000007a46 = 0; *(uint8_t*)0x200000007a47 = -1; *(uint16_t*)0x200000007a48 = 0x46d; *(uint16_t*)0x200000007a4a = 0xc08d; *(uint16_t*)0x200000007a4c = 0x40; *(uint8_t*)0x200000007a4e = 1; *(uint8_t*)0x200000007a4f = 2; *(uint8_t*)0x200000007a50 = 3; *(uint8_t*)0x200000007a51 = 1; *(uint8_t*)0x200000007a52 = 9; *(uint8_t*)0x200000007a53 = 2; *(uint16_t*)0x200000007a54 = 0x2d; *(uint8_t*)0x200000007a56 = 1; *(uint8_t*)0x200000007a57 = 1; *(uint8_t*)0x200000007a58 = 4; *(uint8_t*)0x200000007a59 = 0x50; *(uint8_t*)0x200000007a5a = 0x10; *(uint8_t*)0x200000007a5b = 9; *(uint8_t*)0x200000007a5c = 4; *(uint8_t*)0x200000007a5d = 0; *(uint8_t*)0x200000007a5e = 0xf9; *(uint8_t*)0x200000007a5f = 2; *(uint8_t*)0x200000007a60 = 3; *(uint8_t*)0x200000007a61 = 1; *(uint8_t*)0x200000007a62 = 2; *(uint8_t*)0x200000007a63 = 5; *(uint8_t*)0x200000007a64 = 9; *(uint8_t*)0x200000007a65 = 0x21; *(uint16_t*)0x200000007a66 = 0x81; *(uint8_t*)0x200000007a68 = 8; *(uint8_t*)0x200000007a69 = 1; *(uint8_t*)0x200000007a6a = 0x22; *(uint16_t*)0x200000007a6b = 0x6e7; *(uint8_t*)0x200000007a6d = 9; *(uint8_t*)0x200000007a6e = 5; *(uint8_t*)0x200000007a6f = 0x81; *(uint8_t*)0x200000007a70 = 3; *(uint16_t*)0x200000007a71 = 0x10; *(uint8_t*)0x200000007a73 = 8; *(uint8_t*)0x200000007a74 = 0xc; *(uint8_t*)0x200000007a75 = 0x6e; *(uint8_t*)0x200000007a76 = 9; *(uint8_t*)0x200000007a77 = 5; *(uint8_t*)0x200000007a78 = 2; *(uint8_t*)0x200000007a79 = 3; *(uint16_t*)0x200000007a7a = 0x200; *(uint8_t*)0x200000007a7c = 8; *(uint8_t*)0x200000007a7d = 1; *(uint8_t*)0x200000007a7e = 0x50; *(uint32_t*)0x200000007f40 = 0xa; *(uint64_t*)0x200000007f44 = 0x200000007a80; *(uint8_t*)0x200000007a80 = 0xa; *(uint8_t*)0x200000007a81 = 6; *(uint16_t*)0x200000007a82 = 0x310; *(uint8_t*)0x200000007a84 = 0x48; *(uint8_t*)0x200000007a85 = 0xa5; *(uint8_t*)0x200000007a86 = 0xca; *(uint8_t*)0x200000007a87 = 8; *(uint8_t*)0x200000007a88 = 0x10; *(uint8_t*)0x200000007a89 = 0; *(uint32_t*)0x200000007f4c = 0x30; *(uint64_t*)0x200000007f50 = 0x200000007ac0; *(uint8_t*)0x200000007ac0 = 5; *(uint8_t*)0x200000007ac1 = 0xf; *(uint16_t*)0x200000007ac2 = 0x30; *(uint8_t*)0x200000007ac4 = 4; *(uint8_t*)0x200000007ac5 = 0xa; *(uint8_t*)0x200000007ac6 = 0x10; *(uint8_t*)0x200000007ac7 = 3; *(uint8_t*)0x200000007ac8 = 0; *(uint16_t*)0x200000007ac9 = 5; *(uint8_t*)0x200000007acb = 0; *(uint8_t*)0x200000007acc = 1; *(uint16_t*)0x200000007acd = 0x8a; *(uint8_t*)0x200000007acf = 0x10; *(uint8_t*)0x200000007ad0 = 0x10; *(uint8_t*)0x200000007ad1 = 0xa; *(uint8_t*)0x200000007ad2 = 0xa; STORE_BY_BITMASK(uint32_t, , 0x200000007ad3, 1, 0, 5); STORE_BY_BITMASK(uint32_t, , 0x200000007ad3, 0, 5, 27); *(uint16_t*)0x200000007ad7 = 0xf00f; *(uint16_t*)0x200000007ad9 = 7; *(uint32_t*)0x200000007adb = 0x3f00; *(uint8_t*)0x200000007adf = 0xa; *(uint8_t*)0x200000007ae0 = 0x10; *(uint8_t*)0x200000007ae1 = 3; *(uint8_t*)0x200000007ae2 = 0; *(uint16_t*)0x200000007ae3 = 4; *(uint8_t*)0x200000007ae5 = 4; *(uint8_t*)0x200000007ae6 = 8; *(uint16_t*)0x200000007ae7 = 0xfff8; *(uint8_t*)0x200000007ae9 = 7; *(uint8_t*)0x200000007aea = 0x10; *(uint8_t*)0x200000007aeb = 2; STORE_BY_BITMASK(uint32_t, , 0x200000007aec, 4, 0, 8); STORE_BY_BITMASK(uint32_t, , 0x200000007aed, 0, 0, 4); STORE_BY_BITMASK(uint32_t, , 0x200000007aed, 5, 4, 4); STORE_BY_BITMASK(uint32_t, , 0x200000007aee, 0x8001, 0, 16); *(uint32_t*)0x200000007f58 = 0xa; *(uint32_t*)0x200000007f5c = 4; *(uint64_t*)0x200000007f60 = 0x200000007b00; *(uint8_t*)0x200000007b00 = 4; *(uint8_t*)0x200000007b01 = 3; *(uint16_t*)0x200000007b02 = 0x437; *(uint32_t*)0x200000007f68 = 0xf2; *(uint64_t*)0x200000007f6c = 0x200000007b40; *(uint8_t*)0x200000007b40 = 0xf2; *(uint8_t*)0x200000007b41 = 3; memcpy((void*)0x200000007b42, "\xf0\x01\x99\x69\xb3\x8f\x6a\xfa\xbd\x6c\x10\x59\x67\xf2\xb7\x9c\x11\x6b\xf5\x2e\x6a\xf5\x49\x27\x19\x39\xcb\xea\xcd\xab\x5c\x85\x03\xce\xe7\xd1\xa6\x7a\x62\xea\x49\x1b\x6b\x2f\x86\x47\x13\x3f\x15\xb8\xe9\x70\x7e\x4a\x77\x57\x7e\x8a\xfd\x8a\x12\x84\x45\x9b\x66\xc7\xbe\x93\xc4\x3e\x84\xef\xcf\xc2\xf7\x3e\x93\xd2\x95\x99\x8c\xc2\xf4\x95\xae\x5b\x1a\x3d\x5e\x12\xef\x6e\x64\x66\x4a\x3b\x5c\x79\x52\x8b\x01\x19\xf7\x8b\x0a\x61\xd8\x07\x23\x25\x37\xeb\x3d\x9c\x09\xad\xd9\x38\x23\xe6\xf8\x78\xbb\xba\x00\x89\x8b\xe1\x01\x7f\xaf\x4e\x5f\x14\xd3\x87\x40\x1c\x45\x64\x59\x54\xc0\x4f\x8c\x83\xf9\xe5\xf0\xae\x99\x13\xd9\xcc\xb8\x8e\x75\x16\xd8\x0f\x8e\x21\xc3\xb6\x10\x42\x92\x58\x16\x92\x48\xa0\x16\xde\x14\x4a\xbc\xe7\x90\x5f\x4d\xd3\xbf\x26\x98\xe9\xf3\xa5\xfe\xbc\x7c\x10\xef\x4e\xd2\x98\xe5\xf8\xfa\xcb\xb3\xc9\x34\x4b\xb3\xab\x33\x56\x8a\x0f\x64\xf4\x28\xd6\x0d\xab\xe2\xbf\xe7\x95\xdf\x06\x03\xcd\xf7\x6f\x60\x62\x41\xfd\xd8\x9c\x8f\xf9\xfe\x55\xee\x23\x95\xfd", 240); *(uint32_t*)0x200000007f74 = 4; *(uint64_t*)0x200000007f78 = 0x200000007c40; *(uint8_t*)0x200000007c40 = 4; *(uint8_t*)0x200000007c41 = 3; *(uint16_t*)0x200000007c42 = 0x2c0a; *(uint32_t*)0x200000007f80 = 0x89; *(uint64_t*)0x200000007f84 = 0x200000007c80; *(uint8_t*)0x200000007c80 = 0x89; *(uint8_t*)0x200000007c81 = 3; memcpy((void*)0x200000007c82, "\x05\xb7\x61\x5d\x7a\x2b\xa8\x3f\x59\x16\xd5\x85\xe5\x29\x06\x69\xa0\xc2\x43\xe1\xc6\x5f\x43\xd6\xc7\x68\x07\x67\xf0\xda\x68\x05\xce\x35\x66\x41\x3a\x20\xf4\xb8\x66\x4b\x77\x79\x9c\x5c\x60\x61\xd9\xd1\x90\x75\xd2\xf8\x9b\x88\x0c\xaa\x62\x2d\x3a\xa9\x10\x8e\x52\x22\xe5\x53\x36\xbf\x78\x50\xd2\xf7\x99\x0a\x13\x14\xb0\xbe\x81\xd6\x06\xf8\xa9\x9a\x67\x05\xe0\xac\x44\x87\x20\x72\x36\x6a\xba\xea\x5f\x97\xd7\xca\x08\xed\x1e\xb2\x5b\x70\x7c\x92\x99\x1e\x55\x37\xf9\x45\xaa\x40\x1d\x76\x13\x49\xb6\x28\xd6\xc9\x28\xc1\xcf\xe5\xb0\x9f\xd1\x32\x72", 135); *(uint32_t*)0x200000007f8c = 0xb8; *(uint64_t*)0x200000007f90 = 0x200000007d40; *(uint8_t*)0x200000007d40 = 0xb8; *(uint8_t*)0x200000007d41 = 3; memcpy((void*)0x200000007d42, "\xf0\x4a\x78\x64\x8b\xb1\x3a\xd6\xc5\x3b\x44\xe4\x2e\xd2\xf2\x4d\x32\x05\xbf\x51\x61\x67\x4f\xf3\x75\xec\xfa\x9f\x71\x0d\xd4\xd5\x2e\x29\x77\x9b\xc4\xc1\xd4\x1f\xaf\x1b\x2e\x02\xfa\x2c\xb4\xca\x6c\x44\x96\x81\xb5\xc8\x8b\x37\x75\xf8\x2b\xab\xde\x22\x58\xf8\xa0\x01\xd8\x11\xf8\xb6\x4c\xe0\x75\x3b\x22\x8c\x16\x18\x09\x77\x0f\x39\x16\x0b\xa4\xea\x92\x49\x0a\x38\xf8\x2c\x3f\x18\xb4\x4c\x81\xa1\x48\xc4\x8b\xbc\x4f\x71\x6e\x64\xa8\x5a\x98\x5f\x35\x70\xd6\x13\x2a\x4a\xc6\xe9\x7f\x0a\xe7\x29\x65\x82\x87\x9c\x5d\x4e\x27\x7b\xe3\xd5\x86\x7d\xc3\xdf\x26\x06\x87\x9b\xd5\x28\x12\x25\xa3\x4f\x3f\xeb\xa4\x36\xee\xc1\x6d\xdf\xbe\x61\x15\x74\xbe\x64\x5a\x71\xc5\xe8\xbe\x49\x4e\x27\x91\x83\x33\xf2\x43\x1a\xef\xf2\xe9\xfe\xd0\x60\x84\x28", 182); *(uint32_t*)0x200000007f98 = 4; *(uint64_t*)0x200000007f9c = 0x200000007e00; *(uint8_t*)0x200000007e00 = 4; *(uint8_t*)0x200000007e01 = 3; *(uint16_t*)0x200000007e02 = 0x40f; *(uint32_t*)0x200000007fa4 = 4; *(uint64_t*)0x200000007fa8 = 0x200000007e40; *(uint8_t*)0x200000007e40 = 4; *(uint8_t*)0x200000007e41 = 3; *(uint16_t*)0x200000007e42 = 0x860; *(uint32_t*)0x200000007fb0 = 4; *(uint64_t*)0x200000007fb4 = 0x200000007e80; *(uint8_t*)0x200000007e80 = 4; *(uint8_t*)0x200000007e81 = 3; *(uint16_t*)0x200000007e82 = 0xf4ef; *(uint32_t*)0x200000007fbc = 4; *(uint64_t*)0x200000007fc0 = 0x200000007ec0; *(uint8_t*)0x200000007ec0 = 4; *(uint8_t*)0x200000007ec1 = 3; *(uint16_t*)0x200000007ec2 = 0x3001; *(uint32_t*)0x200000007fc8 = 4; *(uint64_t*)0x200000007fcc = 0x200000007f00; *(uint8_t*)0x200000007f00 = 4; *(uint8_t*)0x200000007f01 = 3; *(uint16_t*)0x200000007f02 = 0x2009; res = -1; res = syz_usb_connect(/*speed=*/0, /*dev_len=*/0x3f, /*dev=*/0x200000007a40, /*conn_descs=*/0x200000007f40); if (res != -1) r[40] = res; break; case 60: syz_usb_ep_read(/*fd=*/r[40], /*ep=*/0, /*len=*/0x1000, /*data=*/0x200000008000); break; case 61: memcpy((void*)0x200000009000, "\x57\xbb\xa2\xf0\x4f\x39\x45\xda\x7a\x47\x03\x77\x10\xf6\xd5\x3d\x8d\xfa\xd8\xa9\x6c\x57\xe1\x1c\xf5\xfc\xfe\xe4\x34\xfc\xe8\x80\x38\xe1\x90\x4e\xcc\x27\x12\x33\x41\x18\xe5\x00\x2b\x0c\x10\x7c\x28\x6e\xb9\x03\x14\x23\x3f\xd5\xce\x1d\x9e\xa5\xda\x00\x76\x74\x11\x02\xd8\x85\x17\x46\x3f\xf1\x18\xbd\x93\x12\x82\x41\x2d\xe1\xf5\xea\x71\xeb\x2b\xec\x91\xb8\x2b\x7f\x7b\x64\xf8\xaa\xe1\xd5\x8e\x32\xde\x1d\xee\xb1\xc8\x26\x4d\x59\xd6\x39\xa1\x94\x5f\x00\x90\x27\x5e\x6b\xdb\xf1\x8e\x86\x68\x5c\xcb\x60\xa5\xfe\xc9\xc7\xce\xba\xc5\xd0\x5b\x5c\x84\xe6\x11\x6f\x89\xd4\x43\xfa\xd3\xce\x74\xd8\x20\x80", 148); syz_usb_ep_write(/*fd=*/r[37], /*ep=*/6, /*len=*/0x94, /*data=*/0x200000009000); break; case 62: syz_usbip_server_init(/*speed=USB_SPEED_SUPER*/5); break; } } int main(void) { syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000ul, /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/7ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x200001000000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); const char* reason; (void)reason; if ((reason = setup_fault())) printf("the reproducer may not work as expected: fault injection setup failed: %s\n", reason); use_temporary_dir(); do_sandbox_none(); return 0; } : In function 'execute_call': :6548:17: error: '__NR_socketcall' undeclared (first use in this function) :6548:17: note: each undeclared identifier is reported only once for each function it appears in At top level: cc1: note: unrecognized command-line option '-Wno-unused-command-line-argument' may have been intended to silence earlier diagnostics compiler invocation: x86_64-linux-gnu-gcc [-o /tmp/syz-executor492486516 -DGOOS_linux=1 -DGOARCH_amd64=1 -DHOSTGOOS_linux=1 -x c - -m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -static-pie] --- FAIL: TestGenerate/linux/amd64/10 (1.31s) csource_test.go:157: opts: {Threaded:true Repeat:true RepeatTimes:0 Procs:0 Slowdown:1 Sandbox:android SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}} program: r0 = openat$ubi_ctrl(0xffffffffffffff9c, &(0x7f0000000000), 0x44502, 0x0) (fail_nth: 1) ioctl$USBDEVFS_BULK(r0, 0xc0185502, &(0x7f0000000140)={{{0xa, 0x1}}, 0xc5, 0x1, &(0x7f0000000040)="e1ee87a8f76c257b75c1073c7058be82fe3362bbcca54df520d1ca8fa91b50810f876d1fab0a1cc214c35f4e266e71643d8c95988087e46a87c1a715effe06169ab65fa18e5414404f30c0005561397ed1d9557c66a994b954efa714985a2ae409df8111fa8a361408734d15b30cd9ab3fa50e088b3d2bafdc689ea3cb7e52a9fc7f5d48d245d4097bb933725bd9e29371cd7780b4ec8d6e2dbf861aad04d6594f5ebd2ffab1e8a68c5157cae2f46f6fa3aeac0e3f8b7b97630f346bc3276e53ca72b417f8"}) (async) ioctl$F2FS_IOC_SET_COMPRESS_OPTION(r0, 0x4002f516, &(0x7f0000000180)={0x4, 0x9}) (rerun: 4) setsockopt$inet6_tcp_TCP_REPAIR(r0, 0x6, 0x13, &(0x7f00000001c0)=0xffffffffffffffff, 0x4) setsockopt$inet6_group_source_req(r0, 0x29, 0x2b, &(0x7f0000000200)={0x4, {{0xa, 0x4e20, 0x4, @private0={0xfc, 0x0, '\x00', 0x1}}}, {{0xa, 0x4e21, 0x1, @local, 0x9}}}, 0x108) ioctl$USBDEVFS_GETDRIVER(r0, 0x41045508, &(0x7f0000000340)={0x4b, "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"}) setsockopt$XDP_UMEM_REG(r0, 0x11b, 0x4, &(0x7f0000000580)={&(0x7f0000000480)=""/222, 0x8000, 0x1800, 0x1, 0x3}, 0x20) ioctl$BLKSECDISCARD(r0, 0x127d, &(0x7f00000005c0)=0x4) ioctl$DRM_IOCTL_SYNCOBJ_FD_TO_HANDLE_FD(r0, 0xc01864c2, &(0x7f0000000600)={0x0, 0x0, r0}) ioctl$DRM_IOCTL_MODE_REVOKE_LEASE(0xffffffffffffffff, 0xc00464c9, &(0x7f00000006c0)) syz_80211_inject_frame(&(0x7f0000000000)=@broadcast, &(0x7f0000000040)=@data_frame={@a_msdu=@type01={{0x0, 0x2, 0xb, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1}, {0x2}, @device_b, @from_mac, @initial, {0x9, 0x5bb}, "", @value={0x1, 0x1, 0x1, 0x1, 0x9}, @value=@ver_80211n={0x0, 0x2, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x1}}, @random="055ba71928a79f8625942b8e22a62e7d0ef5d26afb5923f0a1"}, 0x37) syz_80211_join_ibss(&(0x7f0000000080)='wlan0\x00', &(0x7f00000000c0)=@random="f20f01439229172ec7637d66e2f075", 0xf, 0x2) syz_btf_id_by_name$bpf_lsm(&(0x7f0000000100)='bpf_lsm_inode_getsecurity\x00') r1 = syz_clone(0x1000, &(0x7f0000000140)="ff427f0e4659ab5893d3badb31b3b1b89da52b0f3d3489a18a5837ba6e04f21cf0581de7946c2e29adef18036a10ce361250a5667064b4d456c64c307d63cfe3422c3fafd450315e8366", 0x4a, &(0x7f00000001c0), &(0x7f0000000200), &(0x7f0000000240)="b201d139a4344e463d89913bee9c68af3f34090b9f6244af88c8fe07ce4ffe9b81210da0fc44559d985ad5bb1dc9672ce4d1df554aafb78053f4") r2 = syz_clone3(&(0x7f0000000440)={0x100400, &(0x7f0000000280)=0xffffffffffffffff, &(0x7f00000002c0)=0x0, &(0x7f0000000300)=0x0, {0x2a}, &(0x7f0000000340)=""/21, 0x15, &(0x7f0000000380)=""/120, &(0x7f0000000400)=[r1], 0x1}, 0x58) syz_create_resource$binfmt(&(0x7f00000004c0)='./file0\x00') syz_emit_ethernet(0xd1, &(0x7f0000000500)={@random="44f71c1405a2", @multicast, @val={@void, {0x8100, 0x1, 0x0, 0x2}}, {@mpls_mc={0x8848, {[{0xf, 0x0, 0x1}, {0xc, 0x0, 0x1}, {0x2, 0x0, 0x1}, {0x1c}], @llc={@snap={0x0, 0x0, "67a3", "c85dcd", 0x88ca, "e303e8e52af9a170943b5f0b2861a3effb852560b1007d1865564aed84dfbf75279a5a950a513b7559f042b12f0d592b5a8bb399b9a071f4d2b9fb4903fb61b866bd20c43a437cc6915d6e19f058e23b4cfbf7d66b0d974aa6f1687cc06941e28e8515a079742b9f8383f09b8e29493cdfef26beab29802d1e85d1a50ef5670a049551dab256fd3dc3fd667fd4a29c752e4f3ba700720a9fe2ecb47e232cfbb80832213bbaf3"}}}}}}, &(0x7f0000000600)={0x1, 0x4, [0x58f, 0x8001, 0x2bc, 0xf]}) syz_emit_vhci(&(0x7f0000000640)=@HCI_ACLDATA_PKT={0x2, {0xc9, 0x1, 0x0, 0xa2}, @l2cap_cid_signaling={{0x9e}, [@l2cap_info_req={{0xa, 0x4, 0x2}, {0x5}}, @l2cap_move_chan_rsp={{0xf, 0x7, 0x4}, {0x1, 0x1ff}}, @l2cap_info_rsp={{0xb, 0x8, 0x64}, {0x1, 0x9, "7d0c09e4aa3ea5a78a46cf8d66857ba4107e5cf880621c4c433cdb0a8bd03a4f9c8f390145f9db0c1dd85656d6b3dc38afb84d7e118e1cbdd6926b1876be6a6553bafa1bfef971281350403e18e82e89f42bb6d51b166bd96dabf25dbb28f01e"}}, @l2cap_disconn_req={{0x6, 0x64, 0x4}, {0x9, 0x1}}, @l2cap_move_chan_cfm={{0x10, 0x2, 0x4}, {0xffff, 0x9}}, @l2cap_create_chan_rsp={{0xd, 0x4f, 0x8}, {0x6, 0x8001, 0x8, 0x3}}, @l2cap_conn_rsp={{0x3, 0x48, 0x8}, {0x4, 0x8, 0x6837, 0x4}}]}}, 0xa7) syz_extract_tcp_res(&(0x7f0000000700), 0x0, 0x507) r6 = openat$cuse(0xffffffffffffff9c, &(0x7f0000000740), 0x2, 0x0) ioctl$DRM_IOCTL_GET_CLIENT(0xffffffffffffffff, 0xc0286405, &(0x7f0000002a80)={0x7, 0x4, {r5}, {0x0}, 0x100000000, 0x3}) shmctl$auto_IPC_STAT(0x8, 0x2, &(0x7f0000002b80)={{0x1, 0x0, 0xee00, 0x5, 0x9, 0x8c, 0x6}, 0xe0000, 0x3, 0x6, 0x2c54, @raw=0x7fffffff, @raw=0x5, 0x3, 0x0, &(0x7f0000002ac0)="34d14592330d2effe2b242ce1c79f97a737dc0f7745d84eec469048ba4772d3ca2f34e3a83b5edadf6550e5b412cf5ee749b3324b30032ad2ae14cfa29ef4ecf97416fdc53d73bb80ea139aac1bf364ddcbe7409342155ae126f63d9e3ab1d5104befdd9", &(0x7f0000002b40)="e550413c2f469c9ef08eb7193b0a242e58befe012aa89d7c"}) r9 = setfsuid$auto(0xee01) r10 = getuid() fstat(r3, &(0x7f0000002ec0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) ioctl$DRM_IOCTL_GET_CLIENT(0xffffffffffffffff, 0xc0286405, &(0x7f0000002f40)={0x9, 0x6, {0xffffffffffffffff}, {0xee01}, 0x9, 0x8}) ioctl$auto_XFS_IOC_SWAPEXT(0xffffffffffffffff, 0xc0c0586d, &(0x7f0000002f80)={0x1, @inferred=r3, @inferred=r3, 0x0, 0x0, '\x00', {0x100, 0x6, 0x4, 0x0, 0xee01, 0x4, 0x2, 0xe78bc90, {0x9e350, 0x10}, {0x4, 0x7}, {0x3a83, 0x80000000}, 0xff, 0x8, 0x7, 0x7, 0x5, 0xd275, 0x6, 0x1, 0xff74, 0x5, '\x00', 0xf0e, 0x400, 0x2, 0x8001}}) msgctl$auto_IPC_RMID(0x2, 0x0, &(0x7f00000030c0)={{0x80, 0x0, 0xee01, 0x8, 0x3, 0x3, 0x6}, &(0x7f0000003040)=0xf, &(0x7f0000003080)=0x29, 0xfffffffffffff801, 0x6b4c, 0x0, 0x3, 0x800, 0x2, 0xbf09, 0x3, @inferred=r2, @inferred=r4}) ioctl$auto_KVM_GET_DEVICE_ATTR(0xffffffffffffffff, 0x4018aee2, &(0x7f0000003140)={0xb407, 0xee01, 0x8, 0x8}) statx$auto(0xffffffffffffff9c, &(0x7f0000003180)='./file0\x00', 0x4, 0x2, &(0x7f00000031c0)={0x8, 0xfffffffe, 0x0, 0xa, 0x0, 0xee00, 0xf, 0x5d3e, 0x5, 0x10, 0xff89, 0x100, {0xf, 0x8}, {0xfff, 0x2}, {0x3, 0x7fff}, {0xffffffffffffffff, 0x9}, 0x0, 0x3, 0x7, 0x8d6, 0x383d, 0x4, 0xb0d4, 0x503, 0x2, 0x0, 0x5, 0x2, [0xfffffffffffffffb, 0xff, 0x3, 0x259, 0xbe9, 0xff, 0x6, 0x800, 0x9]}) shmctl$auto_IPC_SET(0x3, 0x1, &(0x7f0000004300)={{0x5, 0xee00, 0xee00, 0x3, 0x7ff, 0x2, 0x5}, 0x2, 0x401, 0x3, 0xfffffffffffffffe, @inferred=r1, @inferred=r4, 0xfffe, 0x0, &(0x7f00000032c0)="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", &(0x7f00000042c0)="14dc2c36c1a4730f33f0a47756b437792e9ac78f742f821e328341e02b"}) newfstatat(0xffffffffffffff9c, &(0x7f0000004600)='./file0\x00', &(0x7f0000004640)={0x0, 0x0, 0x0, 0x0, 0x0}, 0x0) fstat(r3, &(0x7f00000046c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) shmctl$auto(0x0, 0x7, &(0x7f00000058c0)={{0xffffffff, 0xee00, 0xffffffffffffffff, 0x2, 0x9, 0x2, 0x4}, 0x6, 0x4, 0x4, 0x1, @raw, @inferred=r4, 0x40, 0x0, &(0x7f0000004840)="be999eee258959e93a2aa68dc2cb1d93b819d2b9d9e678e2e2506d54510e920728d75815bb8027e6a021febb8f0996f8add6877b74ce5eace74504cf3a4f3ac46a5a59400342351940bfb8767dd9955c9e9a9941", &(0x7f00000048c0)="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lstat$auto(&(0x7f0000005940)='./file0\x00', &(0x7f0000005980)={0x100000000, 0x7d80, 0x1, 0x40, 0xffffffffffffffff, 0x0, 0x0, 0x7, 0xfffffffffffffffb, 0x0, 0x2, 0xe6, 0x2, 0x4, 0xa03f, 0x10, 0x7}) syz_fuse_handle_req(r6, 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", 0x2000, &(0x7f0000005b80)={&(0x7f0000002780)={0x50, 0xffffffffffffffda, 0x7, {0x7, 0x2d, 0x8, 0x1020000, 0xfffc, 0x401, 0x12, 0x6, 0x0, 0x0, 0x40, 0xce}}, &(0x7f0000002800)={0x18, 0x0, 0x6, {0xbb}}, &(0x7f0000002840)={0x18, 0x0, 0x1, {0x5}}, &(0x7f0000002880)={0x18, 0xfffffffffffffff5, 0x4}, &(0x7f00000028c0)={0x18, 0xfffffffffffffffe, 0x3, {0x7}}, &(0x7f0000002900)={0x28, 0x0, 0x300000000000, {{0x1, 0x8, 0x0, r1}}}, &(0x7f0000002940)={0x60, 0x0, 0xc, {{0x0, 0xff, 0x2, 0x41, 0x40, 0x6, 0x8dd, 0x5}}}, &(0x7f00000029c0)={0x18, 0xffffffffffffffda, 0x9, {0x5}}, &(0x7f0000002a00)={0x16, 0x0, 0x6, {'\xff\xff\xff\xff\xff\xff'}}, &(0x7f0000002a40)={0x20, 0x0, 0x0, {0x0, 0x1e}}, &(0x7f0000002c00)={0x78, 0xfffffffffffffffe, 0x3, {0x8, 0x6, 0x0, {0x0, 0x8, 0x2, 0x8, 0x80, 0x5, 0x3482, 0xa246, 0x80000000, 0x4000, 0x3e08, r7, r8, 0x7f, 0x3}}}, &(0x7f0000002c80)={0x90, 0xffffffffffffffda, 0x2, {0x6, 0x0, 0x2, 0x8, 0xfffffffc, 0x9, {0x1, 0x3, 0x2, 0x5, 0x761, 0x7, 0x58d95c3d, 0x7, 0x7, 0x8000, 0x8, r9, 0xee01, 0x0, 0x400}}}, &(0x7f0000002d40)={0x158, 0x0, 0x8000000000000001, [{0x0, 0x0, 0x0, 0x5}, {0x2, 0x291, 0x3, 0x0, 'a-$'}, {0x6, 0x1, 0x1a, 0x5df9, 'bpf_lsm_inode_getsecurity\x00'}, {0x5, 0x4}, {0x3, 0x2, 0x7, 0x615d, ']F,[@%('}, {0x3, 0x4, 0x2, 0x5, '#*'}, {0x6, 0xc, 0x1, 0x200, '!'}, {0x2, 0x1, 0x3, 0xffff, '%[*'}, {0x2, 0x1, 0x6, 0x10001, '\xbb\xbb\xbb\xbb\xbb\xbb'}, {0x2, 0x9, 0x3, 0x3, '\\$&'}]}, &(0x7f0000004380)={0x280, 0x0, 0x7, [{{0x1, 0x2, 0x9b, 0xa, 0x40, 0x2b, {0x1, 0x0, 0xf5, 0x7, 0x8, 0x7, 0x5, 0x9, 0x1b, 0xa000, 0x4, r10, r12, 0x4, 0x10000}}, {0x4, 0x6, 0x0, 0x7f}}, {{0x1, 0x0, 0x9, 0x4, 0x9, 0x101, {0x0, 0x80, 0x80000001, 0x8, 0x7fffffffffffffff, 0xc14, 0x7, 0x2, 0x5, 0x1000, 0x7, r13, r16, 0x7, 0x3}}, {0x1, 0x8000000000000000, 0x0, 0x9}}, {{0x3, 0x1, 0x7, 0x3, 0x10000, 0xfff, {0x6, 0x3, 0x4, 0xffffffff, 0x5, 0x1, 0xcf, 0x5, 0x2, 0x3000, 0xf, r17, r18, 0xdda, 0x800}}, {0x0, 0x480, 0x1, 0x7, '\''}}, {{0x3, 0x0, 0x6, 0x6, 0xae90, 0x7fff, {0x5, 0x2, 0xffff, 0xb6, 0x9, 0x8, 0x200, 0x3, 0x6, 0x6000, 0xfffffff7, r19, r20, 0x4, 0x6}}, {0x0, 0x3, 0x6, 0xfffffffd, 'wlan0\x00'}}]}, &(0x7f0000004740)={0xa0, 0xfffffffffffffffe, 0x7fff, {{0x1, 0x2, 0x8, 0x8001, 0x9000, 0x0, {0x3, 0x4, 0x4283, 0x6, 0x7, 0x1, 0x4, 0x8000, 0x7f, 0x2000, 0xa, r22, r24, 0x2, 0x9}}}}, &(0x7f0000004800)={0x20, 0x0, 0xa, {0x8}}, &(0x7f0000005a40)={0x130, 0x0, 0x800, {0x10000000, 0x9, 0x0, '\x00', {0x4, 0xfffffff9, 0x8, 0xd, r25, r27, 0x4000, '\x00', 0xe, 0x1, 0x9, 0x4, {0x75, 0x10}, {0x0, 0x2a}, {0x4, 0x647}, {0x8, 0xfffffffa}, 0x4, 0x9, 0xf1, 0x7}}}}) r28 = socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$SEG6(&(0x7f0000005c40), r28) syz_init_net_socket$802154_dgram(0x24, 0x2, 0x0) r29 = syz_io_uring_complete(0x0) syz_io_uring_setup(0x19f7, &(0x7f0000005c80)={0x0, 0x9c5d, 0x2, 0x1, 0x253, 0x0, r15}, &(0x7f0000005d00)=0x0, &(0x7f0000005d40)=0x0) syz_io_uring_submit(r30, r31, &(0x7f0000005dc0)=@IORING_OP_TIMEOUT={0xb, 0x28, 0x0, 0x0, 0x3, &(0x7f0000005d80), 0x1, 0x10, 0x1}) r32 = syz_kvm_setup_syzos_vm$x86(r15, &(0x7f0000bff000/0x400000)=nil) syz_kvm_add_vcpu$x86(r32, &(0x7f0000005e80)={0x0, &(0x7f0000005e00)=[@enable_nested={0x12c, 0x18}, @uexit={0x0, 0x18, 0x4}, @nested_create_vm={0x12d, 0x18, 0x2}], 0x48}) syz_kvm_setup_cpu$ppc64(r14, r29, &(0x7f0000c37000/0x18000)=nil, &(0x7f0000006100)=[{0x0, &(0x7f0000005ec0)="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", 0x230}], 0x1, 0x1, &(0x7f0000006140)=[@featur2={0x1, 0x7}], 0x1) syz_kvm_setup_syzos_vm$x86(r29, &(0x7f0000c00000/0x400000)=nil) syz_memcpy_off$IO_URING_METADATA_FLAGS(r30, 0x114, &(0x7f0000006180), 0x0, 0x4) r33 = socketcall$auto_SYS_SOCKET(0x1, &(0x7f0000006240)=0x5) shmctl$auto_SHM_INFO(0x80000000, 0xe, &(0x7f0000006340)={{0xfffffffa, r11, r27, 0x3, 0xffff, 0xe6b, 0x7}, 0x0, 0x357b, 0x3, 0x8000000000000000, @raw=0x74, @inferred=r21, 0xc0b, 0x0, &(0x7f0000006280)="7010159f68d5ae907137fa70d286a18ba48348f88d1fa097cfe82bb9559e66c97b4ccf3acd9ce240544907f4538170e45e0c6de8adfb6ae94ed44b616a63737814f1894473d9519f2130e8a0e061c96e46a99a5316e46b6b461348bb03dddad70675bcda5921bdb5038cc7dcade7ba3e106cf315e2ad48818a62c7", &(0x7f0000006300)="1368248ad908eb425081239c0a10a514ef06f16fa38bc52b0f03b04d36f544263cb4a0a3ffbbafa80089cf8b02841df433c6b97da8fbfe285fccd05ad4"}) syz_mount_image$fuse(&(0x7f00000061c0), &(0x7f0000006200)='./file0\x00', 0x400, &(0x7f00000063c0)={{'fd', 0x3d, r33}, 0x2c, {'rootmode', 0x3d, 0x1000}, 0x2c, {'user_id', 0x3d, r23}, 0x2c, {'group_id', 0x3d, r34}, 0x2c, {[{@blksize={'blksize', 0x3d, 0x600}}, {}, {@blksize={'blksize', 0x3d, 0x1e00}}, {@max_read={'max_read', 0x3d, 0x100000001}}, {@default_permissions}, {@default_permissions}], [{@euid_lt={'euid<', r13}}, {@subj_user={'subj_user', 0x3d, ','}}, {@uid_lt={'uid<', r26}}, {@audit}, {@dont_measure}]}}, 0x0, 0x0, &(0x7f0000006540)="d3aa92") syz_open_dev$I2C(&(0x7f0000006580), 0x800, 0x40000) syz_open_procfs(r5, &(0x7f00000065c0)='cgroup\x00') syz_open_pts(r14, 0x201) syz_pidfd_open(r35, 0x0) r36 = pkey_alloc(0x0, 0x2) syz_pkey_set(r36, 0x0) syz_socket_connect_nvme_tcp() r37 = syz_usb_connect(0x3, 0x504, &(0x7f0000006600)={{0x12, 0x1, 0x310, 0xf, 0x36, 0x49, 0x8, 0x7d0, 0x4101, 0x4624, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x4f2, 0x3, 0x1, 0xa2, 0x40, 0x64, [{{0x9, 0x4, 0xc2, 0x7, 0xa, 0x50, 0xb3, 0x17, 0x7, [@hid_hid={0x9, 0x21, 0x3, 0xdf, 0x1, {0x22, 0x238}}, @uac_as={[@as_header={0x7, 0x24, 0x1, 0x2, 0x2, 0x2}, @format_type_i_continuous={0xb, 0x24, 0x2, 0x1, 0xde, 0x2, 0x0, 0x5, "", "116df7"}, @format_type_ii_discrete={0xa, 0x24, 0x2, 0x2, 0x8, 0x3, 0x7, ';'}, @format_type_i_continuous={0xa, 0x24, 0x2, 0x1, 0x4, 0x3, 0x1a, 0x9, "0f58"}, @format_type_ii_discrete={0xc, 0x24, 0x2, 0x2, 0xf270, 0x100, 0x7, "3129f9"}, @format_type_i_continuous={0xb, 0x24, 0x2, 0x1, 0x1, 0x3, 0xf9, 0xa3, "", "540613"}]}], [{{0x9, 0x5, 0x3, 0x38, 0x8, 0x1, 0xf9, 0x0, [@uac_iso={0x7, 0x25, 0x1, 0x1, 0x80, 0xffb0}, @generic={0x62, 0xe, "0bef679d6359d71a144a38a22834d12bd19c60b65829f44ebe6b1258a3a7a0cc60f30007c2c4d2a3cb88fb6beb580e628147114ffc6a4e39b19e718fc2cd0fa5af688649abe3db58d0707203283b6bdca05f49fb16b3618fcf4dd01cb2ef3509"}]}}, {{0x9, 0x5, 0x4, 0x0, 0x20, 0x1, 0x2, 0x5, [@generic={0x4e, 0xa, "aade99ccf348061ad92225e05a396a2ebe892ca65de9efa665821e34200c5caa943c9b1a3eb10828e13815e6120c4787a4d395b1e32a8ba1ffb991375879d517862de6e9cb6f723335dd156a"}]}}, {{0x9, 0x5, 0x3, 0xc, 0x3ff, 0x7, 0x0, 0x7f, [@generic={0x33, 0xe, "08b928c563b3fbc136beaf22bf46e0cf55e3f262485f30b28a3f9a3ec901ce8066c6788d469526c55bf0c2b3ca5005539a"}]}}, {{0x9, 0x5, 0xb, 0x4, 0x3ff, 0x3, 0x40, 0x7f, [@uac_iso={0x7, 0x25, 0x1, 0x87, 0x9, 0x4e}, @generic={0xcb, 0x11, "3b9dcacc679086d78f927ab634935a18813b23cceffea69b630aa97cc469907afac2a30327adeb901d9fb900ad82138098cbff5fed7fee2c7d701290ce4ad020a9da29675f8f051399879db57022b89c990120513aaa70c51847b128dd73bdea25cbb545c1ae8352024ca93cd7ea881cbb0920eedef072efe9da61b7bd77a3c085d712c142ca88c39f8edd17d6fb9a7ef8d0fad5a15a333e7ed05e7e9ae6e2a464c3159ab1a60e33afbf29a2f678c8c9e2f8f7a8d03d5582529b277b4be85583e5d81bc95749773042"}]}}, {{0x9, 0x5, 0x1, 0x3, 0x8, 0xe, 0x8, 0x7f, [@generic={0x72, 0x6, "6ee2410469b7a8b23e3255a554b63d5beb1b34b4871894e3df69e7558ce56cc83b83ae1ac9d1dec0882d040a7801a300c7eac26d78d2daff6bd47caca500d46c1b5a0b9e1ada0e7b606b6fd6b39db81c7c954c04d4ede980ea2ca80b113bdb4be747e1b6dc9281d77e85683aaac6534c"}]}}, {{0x9, 0x5, 0xb, 0xc, 0x5bf5a5d27b9960e1, 0x0, 0x1, 0x7}}, {{0x9, 0x5, 0x0, 0x0, 0x10, 0x5, 0x1, 0x77}}, {{0x9, 0x5, 0x5, 0x0, 0x208, 0x1b, 0x9, 0x7}}, {{0x9, 0x5, 0xf, 0x0, 0x40, 0x30, 0x5, 0x7, [@generic={0x50, 0x6, "011daf9ad3aea956d0184e8907d7b0b0a6aa9e921ac64d7a9e5a0ce5b5e0afb47868c9c4a76b6509835bf9ee45a7891eaad172a875634f7f36260124669b2d1b04c2fda38cc936921cb561245efa"}, @generic={0xb7, 0x21, "53542a37449c9d1a4e696a99527d5ad5bdad1c7e724128df50295aa0c61401ca6cd5cd356977f617e8b11448466269116af93b9dce05ded48792719f65bfa91da16b85ee1d6236084d8170f97c0a74f102663c645b0ee1b0fa7904e646438d8b16218604561c1abb98289e3ecba88e78f67361478774462a4d82749646452004b2482082e9c1b2f2972419f6f752e1bec5e1925fce215edb8265344da85b85164db3c633e4e431fec4c609664eac2b6b1f5f7bdc10"}]}}, {{0x9, 0x5, 0xc, 0x10, 0x10, 0x3, 0xf9, 0xff, [@generic={0xba, 0x23, "5c48a51f46fa078d84ce434e722a7fa4e7021ae9d9b76677366de6a10ab3e94e0969d7fc2a24536e1150d94672c5418b02951def7e20c7dfe0aa26adbf0bfd8f6dd351fa30990713537134af9c14fa84dee2b95af8e134542b5a1ad540329a97cbdd1a2422f13e6e03b49f7105a6bf4900ea723fbe14f21d182aeef2cf5162591f8bd38b85d45d723cef02132b5e45467dd8d430c378b8bf2d98403267010379de7bd04c800dfd5fae0c0ddac0b5cffde98ca400dce30ddd"}]}}]}}, {{0x9, 0x4, 0xfc, 0x4, 0x1, 0xff, 0x6, 0x39, 0xc, [], [{{0x9, 0x5, 0x0, 0x2, 0x400, 0x9, 0xdf, 0x2, [@uac_iso={0x7, 0x25, 0x1, 0x3, 0x8, 0x8000}]}}]}}, {{0x9, 0x4, 0x9d, 0x1, 0x3, 0x48, 0x48, 0x40, 0xa, [], [{{0x9, 0x5, 0x1, 0x10, 0x40, 0x2, 0xf1, 0xc, [@uac_iso={0x7, 0x25, 0x1, 0x81, 0x81, 0x5}]}}, {{0x9, 0x5, 0x7, 0x8, 0x40, 0x6, 0x0, 0x1, [@uac_iso={0x7, 0x25, 0x1, 0x2, 0x0, 0x10}, @generic={0x6, 0xe, "555dc78c"}]}}, {{0x9, 0x5, 0x5, 0x4, 0x200, 0x9, 0x40, 0x3}}]}}]}}]}}, &(0x7f0000006c00)={0xa, &(0x7f0000006b40)={0xa, 0x6, 0x200, 0x3b, 0x5, 0x9, 0x40, 0xa4}, 0x30, &(0x7f0000006b80)={0x5, 0xf, 0x30, 0x3, [@ptm_cap={0x3}, @ssp_cap={0x10, 0x10, 0xa, 0x1c, 0x1, 0x7ffffd3, 0xff00, 0x1fb, [0x0]}, @ssp_cap={0x18, 0x10, 0xa, 0xf, 0x3, 0x8, 0xff00, 0xd00, [0x0, 0xffc0cf, 0xff0000]}]}, 0x1, [{0x4, &(0x7f0000006bc0)=@lang_id={0x4, 0x3, 0x42f}}]}) r38 = syz_usb_connect_ath9k(0x3, 0x5a, &(0x7f0000006c40)={{0x12, 0x1, 0x200, 0xff, 0xff, 0xff, 0x40, 0xcf3, 0x9271, 0x108, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x48}}]}}, 0x0) r39 = syz_usb_connect$cdc_ecm(0x6, 0x8f, &(0x7f0000006cc0)={{0x12, 0x1, 0x310, 0x2, 0x0, 0x0, 0x8, 0x525, 0xa4a1, 0x40, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x7d, 0x1, 0x1, 0x6, 0x10, 0xb, [{{0x9, 0x4, 0x0, 0x4, 0x3, 0x2, 0x6, 0x0, 0xe, {{0xb, 0x24, 0x6, 0x0, 0x0, "d60132f149c6"}, {0x5, 0x24, 0x0, 0xbb8}, {0xd, 0x24, 0xf, 0x1, 0x7, 0x32a, 0x8, 0x1f}, [@obex={0x5, 0x24, 0x15, 0x101}, @mdlm={0x15, 0x24, 0x12, 0xfffc}, @network_terminal={0x7, 0x24, 0xa, 0xb, 0x9, 0xf, 0x2}, @call_mgmt={0x5, 0x24, 0x1, 0x1, 0xff}, @obex={0x5, 0x24, 0x15, 0x7ff}, @mbim_extended={0x8, 0x24, 0x1c, 0x5, 0x32, 0xa}]}, {[{{0x9, 0x5, 0x81, 0x3, 0x10, 0x7, 0x99, 0xb2}}], {{0x9, 0x5, 0x82, 0x2, 0x8, 0x1a, 0x7, 0xc4}}, {{0x9, 0x5, 0x3, 0x2, 0x3ff, 0xa6, 0x3, 0xa7}}}}}]}}]}}, &(0x7f0000007240)={0xa, &(0x7f0000006d80)={0xa, 0x6, 0x300, 0xfb, 0x3, 0xc, 0xff, 0x1}, 0x3c, &(0x7f0000006dc0)={0x5, 0xf, 0x3c, 0x6, [@ext_cap={0x7, 0x10, 0x2, 0x4, 0x7, 0x7, 0x56a9}, @wireless={0xb, 0x10, 0x1, 0x4, 0x42, 0x2, 0x3, 0x63ac, 0x9}, @ptm_cap={0x3}, @ext_cap={0x7, 0x10, 0x2, 0x1a, 0x7, 0xb, 0xd5}, @ssp_cap={0x10, 0x10, 0xa, 0x7f, 0x1, 0x12f, 0xf00, 0x1, [0x3fc0]}, @wireless={0xb, 0x10, 0x1, 0x8, 0x40, 0x7, 0x5, 0x2, 0x4}]}, 0x8, [{0x78, &(0x7f0000006e00)=@string={0x78, 0x3, "d7b4cadb72dce27ca7fb5209aad1b3585c8188f06126d3f18edd4cfa47addbd2a6715dd4adfa697f02bcb089ed2013268885f9c785bd7c5d4ee50de3cecd7a9d0b7b2e708226e8acb1e908b1f5c0c2a8132465e451fe49f15e60c8d3b9c84305d0dd8f634480050259cac3ce9cfc95092bd7e491866d"}}, {0x13, &(0x7f0000006e80)=@string={0x13, 0x3, "7d97d9eb8af2943b9985d30caaead89b5a"}}, {0x4, &(0x7f0000006ec0)=@lang_id={0x4, 0x3, 0x44a}}, {0x4, &(0x7f0000006f00)=@lang_id={0x4, 0x3, 0x1c09}}, {0x93, &(0x7f0000006f40)=@string={0x93, 0x3, "a7e5529238f796c9000c753f41b8183140f3914b76bf1c428ebe8d39c6f072b481ecad746274e7c538790d8c730d20517a2244a3781b115c07d40e9ec9c059f12d0d15f46ccf0cde26efa9d02a119e2cc5627c7f4241244d0843ef0018b12fc3cd467b5fdce58a6975d07ac352a42f1615178dcb0990aeca46461306816becdeb896bac765ded81ebd75ba4d97229b15a9"}}, {0xc2, &(0x7f0000007000)=@string={0xc2, 0x3, "d5a3d483012b31e49dfa33fd9593b4b668aa6f3f39301837d951daf256316819f5e71fa651bb06b2af65af27c7bf0fda1eaa1e32231b75f4d06d4923c76013e9d76a12202816ff8740a9fb4f2eceb27bd2e1ab1e7bd4ba7314b33d15e0fe65aa2b2e7ffb3236cb615493391feab3bfb828182fb60c4fd6fef422e106f384be633905ca1aaf83d9ddb2a2902e2a117de4e596145809b3b34b1ea432b412391ffb25ac255e7da11d994e7e9e98e0723a2757e580959dae6fa7ac2afb8dc5384b4a"}}, {0x5b, &(0x7f0000007100)=@string={0x5b, 0x3, "a794090968e46e97b7269fcae0f818bf9a99a50de60e5cda684721be6dc34820f912c338d7dc8ac50d93fc92a2ebde1a02652089726608a9e5877f4cacf91b9eec5b5eb2fc7fa7bb3d26607537f0e55d00793e7cf13bbb367e"}}, {0x90, &(0x7f0000007180)=@string={0x90, 0x3, "f9926b0dae8c462352105ed1c4d3ff50cc9ce982c397e92e576101317190c2327a2ba723844149e55f4b961d0f0defbc7edb70f5d61169074265acd81ceec5a15b66a5e5009236d062994af9afcbe04736aaad6bb55cb30e057c42d0df7481603c3c959b5e4e20f05382a9d9ad4c01680ae3597ef403dedf0b6c53fdc70d13ed116ef9ea902093f1c9f4af4cec25"}}]}) syz_usb_control_io(r39, &(0x7f0000007480)={0x2c, &(0x7f00000072c0)={0x40, 0x7, 0x1b, {0x1b, 0xa, "90730f1d9e91d2e1df577143e18c680eace6d6c12299246128"}}, &(0x7f0000007300)={0x0, 0x3, 0x44, @string={0x44, 0x3, "87d74dd46096809a8f4988ddaa95a532fbc22d8585d1592857ad0ab00c17a4fef3b229a02fe0e3649316bed9f44f588b1f0b47bc86705129440938bd68a29a84f829"}}, &(0x7f0000007380)={0x0, 0xf, 0x41, {0x5, 0xf, 0x41, 0x4, [@ssp_cap={0x20, 0x10, 0xa, 0x0, 0x5, 0xe85, 0xf00, 0x3, [0xff00a0, 0xff00f0, 0x30, 0xf, 0xdfbf]}, @ext_cap={0x7, 0x10, 0x2, 0x4, 0x4, 0x1, 0xff}, @wireless={0xb, 0x10, 0x1, 0x2, 0x1, 0x1, 0x3, 0x9, 0x8}, @ss_cap={0xa, 0x10, 0x3, 0x2, 0x4, 0x3, 0xb6, 0x5}]}}, &(0x7f0000007400)={0x20, 0x29, 0xf, {0xf, 0x29, 0xf, 0x4, 0x6, 0x32, "b2c84f72", "f5fb7b90"}}, &(0x7f0000007440)={0x20, 0x2a, 0xc, {0xc, 0x2a, 0x3a, 0x60, 0x4, 0x4, 0x7, 0x8001, 0x8}}}, &(0x7f0000007980)={0x84, &(0x7f00000074c0)={0x0, 0x0, 0xcf, "9f51c6ee54bfc1fc30d787499ab24493c2f30f78fe088e724ad29badb6c2406874a909d80e000075bbe92f6f4e8b3514481d12b869deb6f47f3b458369b7f024fcc02319e38cb7467c76b370d378ee0256daa3acea1f71be5e4c7d8a50037ba84e62445bbd990a26b44f60198d63505fbf005b96637abf5eb692a2ed0d582692e3f259387ed9d1955917dc53a246eb20e281e78386ed8734b81075e43b5b3e15ea60dbd497e07ad8847992dd87831b20d05263c108d70117e52170efac1777d3d376876358c2297172b2a023b52c05"}, &(0x7f00000075c0)={0x0, 0xa, 0x1, 0x2}, &(0x7f0000007600)={0x0, 0x8, 0x1, 0xfc}, &(0x7f0000007640)={0x20, 0x0, 0x4, {0x3, 0x1}}, &(0x7f0000007680)={0x20, 0x0, 0x4, {0x1d20, 0x20}}, &(0x7f00000076c0)={0x40, 0x7, 0x2, 0xfff8}, &(0x7f0000007700)={0x40, 0x9, 0x1, 0xd}, &(0x7f0000007740)={0x40, 0xb, 0x2, "2289"}, &(0x7f0000007780)={0x40, 0xf, 0x2, 0x2}, &(0x7f00000077c0)={0x40, 0x13, 0x6, @broadcast}, &(0x7f0000007800)={0x40, 0x17, 0x6, @random="eefa7a620165"}, &(0x7f0000007840)={0x40, 0x19, 0x2, "01d3"}, &(0x7f0000007880)={0x40, 0x1a, 0x2, 0x5}, &(0x7f00000078c0)={0x40, 0x1c, 0x1, 0xff}, &(0x7f0000007900)={0x40, 0x1e, 0x1, 0xf7}, &(0x7f0000007940)={0x40, 0x21, 0x1, 0xb}}) syz_usb_disconnect(r38) r40 = syz_usb_connect$hid(0x0, 0x3f, &(0x7f0000007a40)={{0x12, 0x1, 0x110, 0x0, 0x0, 0x0, 0xff, 0x46d, 0xc08d, 0x40, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x2d, 0x1, 0x1, 0x4, 0x50, 0x10, [{{0x9, 0x4, 0x0, 0xf9, 0x2, 0x3, 0x1, 0x2, 0x5, {0x9, 0x21, 0x81, 0x8, 0x1, {0x22, 0x6e7}}, {{{0x9, 0x5, 0x81, 0x3, 0x10, 0x8, 0xc, 0x6e}}, [{{0x9, 0x5, 0x2, 0x3, 0x200, 0x8, 0x1, 0x50}}]}}}]}}]}}, &(0x7f0000007f40)={0xa, &(0x7f0000007a80)={0xa, 0x6, 0x310, 0x48, 0xa5, 0xca, 0x8, 0x10}, 0x30, &(0x7f0000007ac0)={0x5, 0xf, 0x30, 0x4, [@ss_cap={0xa, 0x10, 0x3, 0x0, 0x5, 0x0, 0x1, 0x8a}, @ssp_cap={0x10, 0x10, 0xa, 0xa, 0x1, 0x0, 0xf00f, 0x7, [0x3f00]}, @ss_cap={0xa, 0x10, 0x3, 0x0, 0x4, 0x4, 0x8, 0xfff8}, @ext_cap={0x7, 0x10, 0x2, 0x4, 0x0, 0x5, 0x8001}]}, 0xa, [{0x4, &(0x7f0000007b00)=@lang_id={0x4, 0x3, 0x437}}, {0xf2, &(0x7f0000007b40)=@string={0xf2, 0x3, "f0019969b38f6afabd6c105967f2b79c116bf52e6af549271939cbeacdab5c8503cee7d1a67a62ea491b6b2f8647133f15b8e9707e4a77577e8afd8a1284459b66c7be93c43e84efcfc2f73e93d295998cc2f495ae5b1a3d5e12ef6e64664a3b5c79528b0119f78b0a61d807232537eb3d9c09add93823e6f878bbba00898be1017faf4e5f14d387401c45645954c04f8c83f9e5f0ae9913d9ccb88e7516d80f8e21c3b610429258169248a016de144abce7905f4dd3bf2698e9f3a5febc7c10ef4ed298e5f8facbb3c9344bb3ab33568a0f64f428d60dabe2bfe795df0603cdf76f606241fdd89c8ff9fe55ee2395fd"}}, {0x4, &(0x7f0000007c40)=@lang_id={0x4, 0x3, 0x2c0a}}, {0x89, &(0x7f0000007c80)=@string={0x89, 0x3, "05b7615d7a2ba83f5916d585e5290669a0c243e1c65f43d6c7680767f0da6805ce3566413a20f4b8664b77799c5c6061d9d19075d2f89b880caa622d3aa9108e5222e55336bf7850d2f7990a1314b0be81d606f8a99a6705e0ac44872072366abaea5f97d7ca08ed1eb25b707c92991e5537f945aa401d761349b628d6c928c1cfe5b09fd13272"}}, {0xb8, &(0x7f0000007d40)=@string={0xb8, 0x3, "f04a78648bb13ad6c53b44e42ed2f24d3205bf5161674ff375ecfa9f710dd4d52e29779bc4c1d41faf1b2e02fa2cb4ca6c449681b5c88b3775f82babde2258f8a001d811f8b64ce0753b228c161809770f39160ba4ea92490a38f82c3f18b44c81a148c48bbc4f716e64a85a985f3570d6132a4ac6e97f0ae7296582879c5d4e277be3d5867dc3df2606879bd5281225a34f3feba436eec16ddfbe611574be645a71c5e8be494e27918333f2431aeff2e9fed0608428"}}, {0x4, &(0x7f0000007e00)=@lang_id={0x4, 0x3, 0x40f}}, {0x4, &(0x7f0000007e40)=@lang_id={0x4, 0x3, 0x860}}, {0x4, &(0x7f0000007e80)=@lang_id={0x4, 0x3, 0xf4ef}}, {0x4, &(0x7f0000007ec0)=@lang_id={0x4, 0x3, 0x3001}}, {0x4, &(0x7f0000007f00)=@lang_id={0x4, 0x3, 0x2009}}]}) syz_usb_ep_read(r40, 0x0, 0x1000, &(0x7f0000008000)=""/4096) syz_usb_ep_write(r37, 0x6, 0x94, &(0x7f0000009000)="57bba2f04f3945da7a47037710f6d53d8dfad8a96c57e11cf5fcfee434fce88038e1904ecc2712334118e5002b0c107c286eb90314233fd5ce1d9ea5da0076741102d88517463ff118bd931282412de1f5ea71eb2bec91b82b7f7b64f8aae1d58e32de1deeb1c8264d59d639a1945f0090275e6bdbf18e86685ccb60a5fec9c7cebac5d05b5c84e6116f89d443fad3ce74d82080") syz_usbip_server_init(0x5) csource_test.go:158: failed to build program: // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifndef __NR_clone3 #define __NR_clone3 435 #endif #ifndef __NR_io_uring_setup #define __NR_io_uring_setup 425 #endif #ifndef __NR_memfd_create #define __NR_memfd_create 319 #endif #ifndef __NR_pidfd_open #define __NR_pidfd_open 434 #endif #ifndef __NR_pkey_alloc #define __NR_pkey_alloc 330 #endif #ifndef __NR_statx #define __NR_statx 332 #endif static unsigned long long procid; static void sleep_ms(uint64_t ms) { usleep(ms * 1000); } static uint64_t current_time_ms(void) { struct timespec ts; if (clock_gettime(CLOCK_MONOTONIC, &ts)) exit(1); return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000; } static void use_temporary_dir(void) { char tmpdir_template[] = "/data/local/tmp/syzkaller.XXXXXX"; char* tmpdir = mkdtemp(tmpdir_template); if (!tmpdir) exit(1); if (chmod(tmpdir, 0777)) exit(1); if (chdir(tmpdir)) exit(1); } static void thread_start(void* (*fn)(void*), void* arg) { pthread_t th; pthread_attr_t attr; pthread_attr_init(&attr); pthread_attr_setstacksize(&attr, 128 << 10); int i = 0; for (; i < 100; i++) { if (pthread_create(&th, &attr, fn, arg) == 0) { pthread_attr_destroy(&attr); return; } if (errno == EAGAIN) { usleep(50); continue; } break; } exit(1); } #define BITMASK(bf_off,bf_len) (((1ull << (bf_len)) - 1) << (bf_off)) #define STORE_BY_BITMASK(type,htobe,addr,val,bf_off,bf_len) *(type*)(addr) = htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) | (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len)))) typedef struct { int state; } event_t; static void event_init(event_t* ev) { ev->state = 0; } static void event_reset(event_t* ev) { ev->state = 0; } static void event_set(event_t* ev) { if (ev->state) exit(1); __atomic_store_n(&ev->state, 1, __ATOMIC_RELEASE); syscall(SYS_futex, &ev->state, FUTEX_WAKE | FUTEX_PRIVATE_FLAG, 1000000); } static void event_wait(event_t* ev) { while (!__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE)) syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, 0); } static int event_isset(event_t* ev) { return __atomic_load_n(&ev->state, __ATOMIC_ACQUIRE); } static int event_timedwait(event_t* ev, uint64_t timeout) { uint64_t start = current_time_ms(); uint64_t now = start; for (;;) { uint64_t remain = timeout - (now - start); struct timespec ts; ts.tv_sec = remain / 1000; ts.tv_nsec = (remain % 1000) * 1000 * 1000; syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, &ts); if (__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE)) return 1; now = current_time_ms(); if (now - start > timeout) return 0; } } static bool write_file(const char* file, const char* what, ...) { char buf[1024]; va_list args; va_start(args, what); vsnprintf(buf, sizeof(buf), what, args); va_end(args); buf[sizeof(buf) - 1] = 0; int len = strlen(buf); int fd = open(file, O_WRONLY | O_CLOEXEC); if (fd == -1) return false; if (write(fd, buf, len) != len) { int err = errno; close(fd); errno = err; return false; } close(fd); return true; } struct nlmsg { char* pos; int nesting; struct nlattr* nested[8]; char buf[4096]; }; static void netlink_init(struct nlmsg* nlmsg, int typ, int flags, const void* data, int size) { memset(nlmsg, 0, sizeof(*nlmsg)); struct nlmsghdr* hdr = (struct nlmsghdr*)nlmsg->buf; hdr->nlmsg_type = typ; hdr->nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK | flags; memcpy(hdr + 1, data, size); nlmsg->pos = (char*)(hdr + 1) + NLMSG_ALIGN(size); } static void netlink_attr(struct nlmsg* nlmsg, int typ, const void* data, int size) { struct nlattr* attr = (struct nlattr*)nlmsg->pos; attr->nla_len = sizeof(*attr) + size; attr->nla_type = typ; if (size > 0) memcpy(attr + 1, data, size); nlmsg->pos += NLMSG_ALIGN(attr->nla_len); } static int netlink_send_ext(struct nlmsg* nlmsg, int sock, uint16_t reply_type, int* reply_len, bool dofail) { if (nlmsg->pos > nlmsg->buf + sizeof(nlmsg->buf) || nlmsg->nesting) exit(1); struct nlmsghdr* hdr = (struct nlmsghdr*)nlmsg->buf; hdr->nlmsg_len = nlmsg->pos - nlmsg->buf; struct sockaddr_nl addr; memset(&addr, 0, sizeof(addr)); addr.nl_family = AF_NETLINK; ssize_t n = sendto(sock, nlmsg->buf, hdr->nlmsg_len, 0, (struct sockaddr*)&addr, sizeof(addr)); if (n != (ssize_t)hdr->nlmsg_len) { if (dofail) exit(1); return -1; } n = recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0); if (reply_len) *reply_len = 0; if (n < 0) { if (dofail) exit(1); return -1; } if (n < (ssize_t)sizeof(struct nlmsghdr)) { errno = EINVAL; if (dofail) exit(1); return -1; } if (hdr->nlmsg_type == NLMSG_DONE) return 0; if (reply_len && hdr->nlmsg_type == reply_type) { *reply_len = n; return 0; } if (n < (ssize_t)(sizeof(struct nlmsghdr) + sizeof(struct nlmsgerr))) { errno = EINVAL; if (dofail) exit(1); return -1; } if (hdr->nlmsg_type != NLMSG_ERROR) { errno = EINVAL; if (dofail) exit(1); return -1; } errno = -((struct nlmsgerr*)(hdr + 1))->error; return -errno; } static int netlink_query_family_id(struct nlmsg* nlmsg, int sock, const char* family_name, bool dofail) { struct genlmsghdr genlhdr; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = CTRL_CMD_GETFAMILY; netlink_init(nlmsg, GENL_ID_CTRL, 0, &genlhdr, sizeof(genlhdr)); netlink_attr(nlmsg, CTRL_ATTR_FAMILY_NAME, family_name, strnlen(family_name, GENL_NAMSIZ - 1) + 1); int n = 0; int err = netlink_send_ext(nlmsg, sock, GENL_ID_CTRL, &n, dofail); if (err < 0) { return -1; } uint16_t id = 0; struct nlattr* attr = (struct nlattr*)(nlmsg->buf + NLMSG_HDRLEN + NLMSG_ALIGN(sizeof(genlhdr))); for (; (char*)attr < nlmsg->buf + n; attr = (struct nlattr*)((char*)attr + NLMSG_ALIGN(attr->nla_len))) { if (attr->nla_type == CTRL_ATTR_FAMILY_ID) { id = *(uint16_t*)(attr + 1); break; } } if (!id) { errno = EINVAL; return -1; } recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0); return id; } const int kInitNetNsFd = 201; #define WIFI_INITIAL_DEVICE_COUNT 2 #define WIFI_MAC_BASE { 0x08, 0x02, 0x11, 0x00, 0x00, 0x00} #define WIFI_IBSS_BSSID { 0x50, 0x50, 0x50, 0x50, 0x50, 0x50} #define WIFI_IBSS_SSID { 0x10, 0x10, 0x10, 0x10, 0x10, 0x10} #define WIFI_DEFAULT_FREQUENCY 2412 #define WIFI_DEFAULT_SIGNAL 0 #define WIFI_DEFAULT_RX_RATE 1 #define HWSIM_CMD_REGISTER 1 #define HWSIM_CMD_FRAME 2 #define HWSIM_CMD_NEW_RADIO 4 #define HWSIM_ATTR_SUPPORT_P2P_DEVICE 14 #define HWSIM_ATTR_PERM_ADDR 22 #define IF_OPER_UP 6 struct join_ibss_props { int wiphy_freq; bool wiphy_freq_fixed; uint8_t* mac; uint8_t* ssid; int ssid_len; }; static int set_interface_state(const char* interface_name, int on) { struct ifreq ifr; int sock = socket(AF_INET, SOCK_DGRAM, 0); if (sock < 0) { return -1; } memset(&ifr, 0, sizeof(ifr)); strcpy(ifr.ifr_name, interface_name); int ret = ioctl(sock, SIOCGIFFLAGS, &ifr); if (ret < 0) { close(sock); return -1; } if (on) ifr.ifr_flags |= IFF_UP; else ifr.ifr_flags &= ~IFF_UP; ret = ioctl(sock, SIOCSIFFLAGS, &ifr); close(sock); if (ret < 0) { return -1; } return 0; } static int nl80211_set_interface(struct nlmsg* nlmsg, int sock, int nl80211_family, uint32_t ifindex, uint32_t iftype, bool dofail) { struct genlmsghdr genlhdr; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = NL80211_CMD_SET_INTERFACE; netlink_init(nlmsg, nl80211_family, 0, &genlhdr, sizeof(genlhdr)); netlink_attr(nlmsg, NL80211_ATTR_IFINDEX, &ifindex, sizeof(ifindex)); netlink_attr(nlmsg, NL80211_ATTR_IFTYPE, &iftype, sizeof(iftype)); int err = netlink_send_ext(nlmsg, sock, 0, NULL, dofail); if (err < 0) { } return err; } static int nl80211_join_ibss(struct nlmsg* nlmsg, int sock, int nl80211_family, uint32_t ifindex, struct join_ibss_props* props, bool dofail) { struct genlmsghdr genlhdr; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = NL80211_CMD_JOIN_IBSS; netlink_init(nlmsg, nl80211_family, 0, &genlhdr, sizeof(genlhdr)); netlink_attr(nlmsg, NL80211_ATTR_IFINDEX, &ifindex, sizeof(ifindex)); netlink_attr(nlmsg, NL80211_ATTR_SSID, props->ssid, props->ssid_len); netlink_attr(nlmsg, NL80211_ATTR_WIPHY_FREQ, &(props->wiphy_freq), sizeof(props->wiphy_freq)); if (props->mac) netlink_attr(nlmsg, NL80211_ATTR_MAC, props->mac, ETH_ALEN); if (props->wiphy_freq_fixed) netlink_attr(nlmsg, NL80211_ATTR_FREQ_FIXED, NULL, 0); int err = netlink_send_ext(nlmsg, sock, 0, NULL, dofail); if (err < 0) { } return err; } static int get_ifla_operstate(struct nlmsg* nlmsg, int ifindex, bool dofail) { struct ifinfomsg info; memset(&info, 0, sizeof(info)); info.ifi_family = AF_UNSPEC; info.ifi_index = ifindex; int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE); if (sock == -1) { return -1; } netlink_init(nlmsg, RTM_GETLINK, 0, &info, sizeof(info)); int n; int err = netlink_send_ext(nlmsg, sock, RTM_NEWLINK, &n, dofail); close(sock); if (err) { return -1; } struct rtattr* attr = IFLA_RTA(NLMSG_DATA(nlmsg->buf)); for (; RTA_OK(attr, n); attr = RTA_NEXT(attr, n)) { if (attr->rta_type == IFLA_OPERSTATE) return *((int32_t*)RTA_DATA(attr)); } return -1; } static int await_ifla_operstate(struct nlmsg* nlmsg, char* interface, int operstate, bool dofail) { int ifindex = if_nametoindex(interface); while (true) { usleep(1000); int ret = get_ifla_operstate(nlmsg, ifindex, dofail); if (ret < 0) return ret; if (ret == operstate) return 0; } return 0; } static int nl80211_setup_ibss_interface(struct nlmsg* nlmsg, int sock, int nl80211_family_id, char* interface, struct join_ibss_props* ibss_props, bool dofail) { int ifindex = if_nametoindex(interface); if (ifindex == 0) { return -1; } int ret = nl80211_set_interface(nlmsg, sock, nl80211_family_id, ifindex, NL80211_IFTYPE_ADHOC, dofail); if (ret < 0) { return -1; } ret = set_interface_state(interface, 1); if (ret < 0) { return -1; } ret = nl80211_join_ibss(nlmsg, sock, nl80211_family_id, ifindex, ibss_props, dofail); if (ret < 0) { return -1; } return 0; } #define SIZEOF_IO_URING_SQE 64 #define SIZEOF_IO_URING_CQE 16 #define SQ_HEAD_OFFSET 0 #define SQ_TAIL_OFFSET 64 #define SQ_RING_MASK_OFFSET 256 #define SQ_RING_ENTRIES_OFFSET 264 #define SQ_FLAGS_OFFSET 276 #define SQ_DROPPED_OFFSET 272 #define CQ_HEAD_OFFSET 128 #define CQ_TAIL_OFFSET 192 #define CQ_RING_MASK_OFFSET 260 #define CQ_RING_ENTRIES_OFFSET 268 #define CQ_RING_OVERFLOW_OFFSET 284 #define CQ_FLAGS_OFFSET 280 #define CQ_CQES_OFFSET 320 struct io_uring_cqe { uint64_t user_data; uint32_t res; uint32_t flags; }; static long syz_io_uring_complete(volatile long a0) { char* ring_ptr = (char*)a0; uint32_t cq_ring_mask = *(uint32_t*)(ring_ptr + CQ_RING_MASK_OFFSET); uint32_t* cq_head_ptr = (uint32_t*)(ring_ptr + CQ_HEAD_OFFSET); uint32_t cq_head = *cq_head_ptr & cq_ring_mask; uint32_t cq_head_next = *cq_head_ptr + 1; char* cqe_src = ring_ptr + CQ_CQES_OFFSET + cq_head * SIZEOF_IO_URING_CQE; struct io_uring_cqe cqe; memcpy(&cqe, cqe_src, sizeof(cqe)); __atomic_store_n(cq_head_ptr, cq_head_next, __ATOMIC_RELEASE); return (cqe.user_data == 0x12345 || cqe.user_data == 0x23456) ? (long)cqe.res : (long)-1; } struct io_sqring_offsets { uint32_t head; uint32_t tail; uint32_t ring_mask; uint32_t ring_entries; uint32_t flags; uint32_t dropped; uint32_t array; uint32_t resv1; uint64_t resv2; }; struct io_cqring_offsets { uint32_t head; uint32_t tail; uint32_t ring_mask; uint32_t ring_entries; uint32_t overflow; uint32_t cqes; uint64_t resv[2]; }; struct io_uring_params { uint32_t sq_entries; uint32_t cq_entries; uint32_t flags; uint32_t sq_thread_cpu; uint32_t sq_thread_idle; uint32_t features; uint32_t resv[4]; struct io_sqring_offsets sq_off; struct io_cqring_offsets cq_off; }; #define IORING_OFF_SQ_RING 0 #define IORING_OFF_SQES 0x10000000ULL #define IORING_SETUP_SQE128 (1U << 10) #define IORING_SETUP_CQE32 (1U << 11) static long syz_io_uring_setup(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { uint32_t entries = (uint32_t)a0; struct io_uring_params* setup_params = (struct io_uring_params*)a1; void** ring_ptr_out = (void**)a2; void** sqes_ptr_out = (void**)a3; setup_params->flags &= ~(IORING_SETUP_CQE32 | IORING_SETUP_SQE128); uint32_t fd_io_uring = syscall(__NR_io_uring_setup, entries, setup_params); uint32_t sq_ring_sz = setup_params->sq_off.array + setup_params->sq_entries * sizeof(uint32_t); uint32_t cq_ring_sz = setup_params->cq_off.cqes + setup_params->cq_entries * SIZEOF_IO_URING_CQE; uint32_t ring_sz = sq_ring_sz > cq_ring_sz ? sq_ring_sz : cq_ring_sz; *ring_ptr_out = mmap(0, ring_sz, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_POPULATE, fd_io_uring, IORING_OFF_SQ_RING); uint32_t sqes_sz = setup_params->sq_entries * SIZEOF_IO_URING_SQE; *sqes_ptr_out = mmap(0, sqes_sz, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_POPULATE, fd_io_uring, IORING_OFF_SQES); uint32_t* array = (uint32_t*)((uintptr_t)*ring_ptr_out + setup_params->sq_off.array); for (uint32_t index = 0; index < entries; index++) array[index] = index; return fd_io_uring; } static long syz_io_uring_submit(volatile long a0, volatile long a1, volatile long a2) { char* ring_ptr = (char*)a0; char* sqes_ptr = (char*)a1; char* sqe = (char*)a2; uint32_t sq_ring_mask = *(uint32_t*)(ring_ptr + SQ_RING_MASK_OFFSET); uint32_t* sq_tail_ptr = (uint32_t*)(ring_ptr + SQ_TAIL_OFFSET); uint32_t sq_tail = *sq_tail_ptr & sq_ring_mask; char* sqe_dest = sqes_ptr + sq_tail * SIZEOF_IO_URING_SQE; memcpy(sqe_dest, sqe, SIZEOF_IO_URING_SQE); uint32_t sq_tail_next = *sq_tail_ptr + 1; __atomic_store_n(sq_tail_ptr, sq_tail_next, __ATOMIC_RELEASE); return 0; } #define VHCI_HC_PORTS 8 #define VHCI_PORTS (VHCI_HC_PORTS * 2) static long syz_usbip_server_init(volatile long a0) { static int port_alloc[2]; int speed = (int)a0; bool usb3 = (speed == USB_SPEED_SUPER); int socket_pair[2]; if (socketpair(AF_UNIX, SOCK_STREAM, 0, socket_pair)) { return -1; } int client_fd = socket_pair[0]; int server_fd = socket_pair[1]; int available_port_num = __atomic_fetch_add(&port_alloc[usb3], 1, __ATOMIC_RELAXED); if (available_port_num > VHCI_HC_PORTS) { return -1; } int port_num = procid * VHCI_PORTS + usb3 * VHCI_HC_PORTS + available_port_num; char buffer[100]; sprintf(buffer, "%d %d %s %d", port_num, client_fd, "0", speed); write_file("/sys/devices/platform/vhci_hcd.0/attach", buffer); return server_fd; } #define BTF_MAGIC 0xeB9F struct btf_header { __u16 magic; __u8 version; __u8 flags; __u32 hdr_len; __u32 type_off; __u32 type_len; __u32 str_off; __u32 str_len; }; #define BTF_INFO_KIND(info) (((info) >> 24) & 0x0f) #define BTF_INFO_VLEN(info) ((info) & 0xffff) #define BTF_KIND_INT 1 #define BTF_KIND_ARRAY 3 #define BTF_KIND_STRUCT 4 #define BTF_KIND_UNION 5 #define BTF_KIND_ENUM 6 #define BTF_KIND_FUNC_PROTO 13 #define BTF_KIND_VAR 14 #define BTF_KIND_DATASEC 15 struct btf_type { __u32 name_off; __u32 info; union { __u32 size; __u32 type; }; }; struct btf_enum { __u32 name_off; __s32 val; }; struct btf_array { __u32 type; __u32 index_type; __u32 nelems; }; struct btf_member { __u32 name_off; __u32 type; __u32 offset; }; struct btf_param { __u32 name_off; __u32 type; }; struct btf_var { __u32 linkage; }; struct btf_var_secinfo { __u32 type; __u32 offset; __u32 size; }; #define VMLINUX_MAX_SUPPORT_SIZE (10 * 1024 * 1024) static char* read_btf_vmlinux() { static bool is_read = false; static char buf[VMLINUX_MAX_SUPPORT_SIZE]; if (is_read) return buf; int fd = open("/sys/kernel/btf/vmlinux", O_RDONLY); if (fd < 0) return NULL; unsigned long bytes_read = 0; for (;;) { ssize_t ret = read(fd, buf + bytes_read, VMLINUX_MAX_SUPPORT_SIZE - bytes_read); if (ret < 0 || bytes_read + ret == VMLINUX_MAX_SUPPORT_SIZE) return NULL; if (ret == 0) break; bytes_read += ret; } is_read = true; return buf; } static long syz_btf_id_by_name(volatile long a0) { char* target = (char*)a0; char* vmlinux = read_btf_vmlinux(); if (vmlinux == NULL) return -1; struct btf_header* btf_header = (struct btf_header*)vmlinux; if (btf_header->magic != BTF_MAGIC) return -1; char* btf_type_sec = vmlinux + btf_header->hdr_len + btf_header->type_off; char* btf_str_sec = vmlinux + btf_header->hdr_len + btf_header->str_off; unsigned int bytes_parsed = 0; long idx = 1; while (bytes_parsed < btf_header->type_len) { struct btf_type* btf_type = (struct btf_type*)(btf_type_sec + bytes_parsed); uint32_t kind = BTF_INFO_KIND(btf_type->info); uint32_t vlen = BTF_INFO_VLEN(btf_type->info); char* name = btf_str_sec + btf_type->name_off; if (strcmp(name, target) == 0) return idx; size_t skip; switch (kind) { case BTF_KIND_INT: skip = sizeof(uint32_t); break; case BTF_KIND_ENUM: skip = sizeof(struct btf_enum) * vlen; break; case BTF_KIND_ARRAY: skip = sizeof(struct btf_array); break; case BTF_KIND_STRUCT: case BTF_KIND_UNION: skip = sizeof(struct btf_member) * vlen; break; case BTF_KIND_FUNC_PROTO: skip = sizeof(struct btf_param) * vlen; break; case BTF_KIND_VAR: skip = sizeof(struct btf_var); break; case BTF_KIND_DATASEC: skip = sizeof(struct btf_var_secinfo) * vlen; break; default: skip = 0; } bytes_parsed += sizeof(struct btf_type) + skip; idx++; } return -1; } static long syz_memcpy_off(volatile long a0, volatile long a1, volatile long a2, volatile long a3, volatile long a4) { char* dest = (char*)a0; uint32_t dest_off = (uint32_t)a1; char* src = (char*)a2; uint32_t src_off = (uint32_t)a3; size_t n = (size_t)a4; return (long)memcpy(dest + dest_off, src + src_off, n); } static long syz_create_resource(volatile long val) { return val; } #define MAX_FDS 30 #define USB_MAX_IFACE_NUM 4 #define USB_MAX_EP_NUM 32 #define USB_MAX_FDS 6 struct usb_endpoint_index { struct usb_endpoint_descriptor desc; int handle; }; struct usb_iface_index { struct usb_interface_descriptor* iface; uint8_t bInterfaceNumber; uint8_t bAlternateSetting; uint8_t bInterfaceClass; struct usb_endpoint_index eps[USB_MAX_EP_NUM]; int eps_num; }; struct usb_device_index { struct usb_device_descriptor* dev; struct usb_config_descriptor* config; uint8_t bDeviceClass; uint8_t bMaxPower; int config_length; struct usb_iface_index ifaces[USB_MAX_IFACE_NUM]; int ifaces_num; int iface_cur; }; struct usb_info { int fd; struct usb_device_index index; }; static struct usb_info usb_devices[USB_MAX_FDS]; static struct usb_device_index* lookup_usb_index(int fd) { for (int i = 0; i < USB_MAX_FDS; i++) { if (__atomic_load_n(&usb_devices[i].fd, __ATOMIC_ACQUIRE) == fd) return &usb_devices[i].index; } return NULL; } static int usb_devices_num; static bool parse_usb_descriptor(const char* buffer, size_t length, struct usb_device_index* index) { if (length < sizeof(*index->dev) + sizeof(*index->config)) return false; memset(index, 0, sizeof(*index)); index->dev = (struct usb_device_descriptor*)buffer; index->config = (struct usb_config_descriptor*)(buffer + sizeof(*index->dev)); index->bDeviceClass = index->dev->bDeviceClass; index->bMaxPower = index->config->bMaxPower; index->config_length = length - sizeof(*index->dev); index->iface_cur = -1; size_t offset = 0; while (true) { if (offset + 1 >= length) break; uint8_t desc_length = buffer[offset]; uint8_t desc_type = buffer[offset + 1]; if (desc_length <= 2) break; if (offset + desc_length > length) break; if (desc_type == USB_DT_INTERFACE && index->ifaces_num < USB_MAX_IFACE_NUM) { struct usb_interface_descriptor* iface = (struct usb_interface_descriptor*)(buffer + offset); index->ifaces[index->ifaces_num].iface = iface; index->ifaces[index->ifaces_num].bInterfaceNumber = iface->bInterfaceNumber; index->ifaces[index->ifaces_num].bAlternateSetting = iface->bAlternateSetting; index->ifaces[index->ifaces_num].bInterfaceClass = iface->bInterfaceClass; index->ifaces_num++; } if (desc_type == USB_DT_ENDPOINT && index->ifaces_num > 0) { struct usb_iface_index* iface = &index->ifaces[index->ifaces_num - 1]; if (iface->eps_num < USB_MAX_EP_NUM) { memcpy(&iface->eps[iface->eps_num].desc, buffer + offset, sizeof(iface->eps[iface->eps_num].desc)); iface->eps_num++; } } offset += desc_length; } return true; } static struct usb_device_index* add_usb_index(int fd, const char* dev, size_t dev_len) { int i = __atomic_fetch_add(&usb_devices_num, 1, __ATOMIC_RELAXED); if (i >= USB_MAX_FDS) return NULL; if (!parse_usb_descriptor(dev, dev_len, &usb_devices[i].index)) return NULL; __atomic_store_n(&usb_devices[i].fd, fd, __ATOMIC_RELEASE); return &usb_devices[i].index; } struct vusb_connect_string_descriptor { uint32_t len; char* str; } __attribute__((packed)); struct vusb_connect_descriptors { uint32_t qual_len; char* qual; uint32_t bos_len; char* bos; uint32_t strs_len; struct vusb_connect_string_descriptor strs[0]; } __attribute__((packed)); static const char default_string[] = { 8, USB_DT_STRING, 's', 0, 'y', 0, 'z', 0 }; static const char default_lang_id[] = { 4, USB_DT_STRING, 0x09, 0x04 }; static bool lookup_connect_response_in(int fd, const struct vusb_connect_descriptors* descs, const struct usb_ctrlrequest* ctrl, struct usb_qualifier_descriptor* qual, char** response_data, uint32_t* response_length) { struct usb_device_index* index = lookup_usb_index(fd); uint8_t str_idx; if (!index) return false; switch (ctrl->bRequestType & USB_TYPE_MASK) { case USB_TYPE_STANDARD: switch (ctrl->bRequest) { case USB_REQ_GET_DESCRIPTOR: switch (ctrl->wValue >> 8) { case USB_DT_DEVICE: *response_data = (char*)index->dev; *response_length = sizeof(*index->dev); return true; case USB_DT_CONFIG: *response_data = (char*)index->config; *response_length = index->config_length; return true; case USB_DT_STRING: str_idx = (uint8_t)ctrl->wValue; if (descs && str_idx < descs->strs_len) { *response_data = descs->strs[str_idx].str; *response_length = descs->strs[str_idx].len; return true; } if (str_idx == 0) { *response_data = (char*)&default_lang_id[0]; *response_length = default_lang_id[0]; return true; } *response_data = (char*)&default_string[0]; *response_length = default_string[0]; return true; case USB_DT_BOS: *response_data = descs->bos; *response_length = descs->bos_len; return true; case USB_DT_DEVICE_QUALIFIER: if (!descs->qual) { qual->bLength = sizeof(*qual); qual->bDescriptorType = USB_DT_DEVICE_QUALIFIER; qual->bcdUSB = index->dev->bcdUSB; qual->bDeviceClass = index->dev->bDeviceClass; qual->bDeviceSubClass = index->dev->bDeviceSubClass; qual->bDeviceProtocol = index->dev->bDeviceProtocol; qual->bMaxPacketSize0 = index->dev->bMaxPacketSize0; qual->bNumConfigurations = index->dev->bNumConfigurations; qual->bRESERVED = 0; *response_data = (char*)qual; *response_length = sizeof(*qual); return true; } *response_data = descs->qual; *response_length = descs->qual_len; return true; default: break; } break; default: break; } break; default: break; } return false; } typedef bool (*lookup_connect_out_response_t)(int fd, const struct vusb_connect_descriptors* descs, const struct usb_ctrlrequest* ctrl, bool* done); static bool lookup_connect_response_out_generic(int fd, const struct vusb_connect_descriptors* descs, const struct usb_ctrlrequest* ctrl, bool* done) { switch (ctrl->bRequestType & USB_TYPE_MASK) { case USB_TYPE_STANDARD: switch (ctrl->bRequest) { case USB_REQ_SET_CONFIGURATION: *done = true; return true; default: break; } break; } return false; } #define ATH9K_FIRMWARE_DOWNLOAD 0x30 #define ATH9K_FIRMWARE_DOWNLOAD_COMP 0x31 static bool lookup_connect_response_out_ath9k(int fd, const struct vusb_connect_descriptors* descs, const struct usb_ctrlrequest* ctrl, bool* done) { switch (ctrl->bRequestType & USB_TYPE_MASK) { case USB_TYPE_STANDARD: switch (ctrl->bRequest) { case USB_REQ_SET_CONFIGURATION: return true; default: break; } break; case USB_TYPE_VENDOR: switch (ctrl->bRequest) { case ATH9K_FIRMWARE_DOWNLOAD: return true; case ATH9K_FIRMWARE_DOWNLOAD_COMP: *done = true; return true; default: break; } break; } return false; } struct vusb_descriptor { uint8_t req_type; uint8_t desc_type; uint32_t len; char data[0]; } __attribute__((packed)); struct vusb_descriptors { uint32_t len; struct vusb_descriptor* generic; struct vusb_descriptor* descs[0]; } __attribute__((packed)); struct vusb_response { uint8_t type; uint8_t req; uint32_t len; char data[0]; } __attribute__((packed)); struct vusb_responses { uint32_t len; struct vusb_response* generic; struct vusb_response* resps[0]; } __attribute__((packed)); static bool lookup_control_response(const struct vusb_descriptors* descs, const struct vusb_responses* resps, struct usb_ctrlrequest* ctrl, char** response_data, uint32_t* response_length) { int descs_num = 0; int resps_num = 0; if (descs) descs_num = (descs->len - offsetof(struct vusb_descriptors, descs)) / sizeof(descs->descs[0]); if (resps) resps_num = (resps->len - offsetof(struct vusb_responses, resps)) / sizeof(resps->resps[0]); uint8_t req = ctrl->bRequest; uint8_t req_type = ctrl->bRequestType & USB_TYPE_MASK; uint8_t desc_type = ctrl->wValue >> 8; if (req == USB_REQ_GET_DESCRIPTOR) { int i; for (i = 0; i < descs_num; i++) { struct vusb_descriptor* desc = descs->descs[i]; if (!desc) continue; if (desc->req_type == req_type && desc->desc_type == desc_type) { *response_length = desc->len; if (*response_length != 0) *response_data = &desc->data[0]; else *response_data = NULL; return true; } } if (descs && descs->generic) { *response_data = &descs->generic->data[0]; *response_length = descs->generic->len; return true; } } else { int i; for (i = 0; i < resps_num; i++) { struct vusb_response* resp = resps->resps[i]; if (!resp) continue; if (resp->type == req_type && resp->req == req) { *response_length = resp->len; if (*response_length != 0) *response_data = &resp->data[0]; else *response_data = NULL; return true; } } if (resps && resps->generic) { *response_data = &resps->generic->data[0]; *response_length = resps->generic->len; return true; } } return false; } #define UDC_NAME_LENGTH_MAX 128 struct usb_raw_init { __u8 driver_name[UDC_NAME_LENGTH_MAX]; __u8 device_name[UDC_NAME_LENGTH_MAX]; __u8 speed; }; enum usb_raw_event_type { USB_RAW_EVENT_INVALID = 0, USB_RAW_EVENT_CONNECT = 1, USB_RAW_EVENT_CONTROL = 2, }; struct usb_raw_event { __u32 type; __u32 length; __u8 data[0]; }; struct usb_raw_ep_io { __u16 ep; __u16 flags; __u32 length; __u8 data[0]; }; #define USB_RAW_EPS_NUM_MAX 30 #define USB_RAW_EP_NAME_MAX 16 #define USB_RAW_EP_ADDR_ANY 0xff struct usb_raw_ep_caps { __u32 type_control : 1; __u32 type_iso : 1; __u32 type_bulk : 1; __u32 type_int : 1; __u32 dir_in : 1; __u32 dir_out : 1; }; struct usb_raw_ep_limits { __u16 maxpacket_limit; __u16 max_streams; __u32 reserved; }; struct usb_raw_ep_info { __u8 name[USB_RAW_EP_NAME_MAX]; __u32 addr; struct usb_raw_ep_caps caps; struct usb_raw_ep_limits limits; }; struct usb_raw_eps_info { struct usb_raw_ep_info eps[USB_RAW_EPS_NUM_MAX]; }; #define USB_RAW_IOCTL_INIT _IOW('U', 0, struct usb_raw_init) #define USB_RAW_IOCTL_RUN _IO('U', 1) #define USB_RAW_IOCTL_EVENT_FETCH _IOR('U', 2, struct usb_raw_event) #define USB_RAW_IOCTL_EP0_WRITE _IOW('U', 3, struct usb_raw_ep_io) #define USB_RAW_IOCTL_EP0_READ _IOWR('U', 4, struct usb_raw_ep_io) #define USB_RAW_IOCTL_EP_ENABLE _IOW('U', 5, struct usb_endpoint_descriptor) #define USB_RAW_IOCTL_EP_DISABLE _IOW('U', 6, __u32) #define USB_RAW_IOCTL_EP_WRITE _IOW('U', 7, struct usb_raw_ep_io) #define USB_RAW_IOCTL_EP_READ _IOWR('U', 8, struct usb_raw_ep_io) #define USB_RAW_IOCTL_CONFIGURE _IO('U', 9) #define USB_RAW_IOCTL_VBUS_DRAW _IOW('U', 10, __u32) #define USB_RAW_IOCTL_EPS_INFO _IOR('U', 11, struct usb_raw_eps_info) #define USB_RAW_IOCTL_EP0_STALL _IO('U', 12) #define USB_RAW_IOCTL_EP_SET_HALT _IOW('U', 13, __u32) #define USB_RAW_IOCTL_EP_CLEAR_HALT _IOW('U', 14, __u32) #define USB_RAW_IOCTL_EP_SET_WEDGE _IOW('U', 15, __u32) static int usb_raw_open() { return open("/dev/raw-gadget", O_RDWR); } static int usb_raw_init(int fd, uint32_t speed, const char* driver, const char* device) { struct usb_raw_init arg; strncpy((char*)&arg.driver_name[0], driver, sizeof(arg.driver_name)); strncpy((char*)&arg.device_name[0], device, sizeof(arg.device_name)); arg.speed = speed; return ioctl(fd, USB_RAW_IOCTL_INIT, &arg); } static int usb_raw_run(int fd) { return ioctl(fd, USB_RAW_IOCTL_RUN, 0); } static int usb_raw_ep_write(int fd, struct usb_raw_ep_io* io) { return ioctl(fd, USB_RAW_IOCTL_EP_WRITE, io); } static int usb_raw_ep_read(int fd, struct usb_raw_ep_io* io) { return ioctl(fd, USB_RAW_IOCTL_EP_READ, io); } static int usb_raw_configure(int fd) { return ioctl(fd, USB_RAW_IOCTL_CONFIGURE, 0); } static int usb_raw_vbus_draw(int fd, uint32_t power) { return ioctl(fd, USB_RAW_IOCTL_VBUS_DRAW, power); } static int usb_raw_ep0_write(int fd, struct usb_raw_ep_io* io) { return ioctl(fd, USB_RAW_IOCTL_EP0_WRITE, io); } static int usb_raw_ep0_read(int fd, struct usb_raw_ep_io* io) { return ioctl(fd, USB_RAW_IOCTL_EP0_READ, io); } static int usb_raw_event_fetch(int fd, struct usb_raw_event* event) { return ioctl(fd, USB_RAW_IOCTL_EVENT_FETCH, event); } static int usb_raw_ep_enable(int fd, struct usb_endpoint_descriptor* desc) { return ioctl(fd, USB_RAW_IOCTL_EP_ENABLE, desc); } static int usb_raw_ep_disable(int fd, int ep) { return ioctl(fd, USB_RAW_IOCTL_EP_DISABLE, ep); } static int usb_raw_ep0_stall(int fd) { return ioctl(fd, USB_RAW_IOCTL_EP0_STALL, 0); } static int lookup_interface(int fd, uint8_t bInterfaceNumber, uint8_t bAlternateSetting) { struct usb_device_index* index = lookup_usb_index(fd); if (!index) return -1; for (int i = 0; i < index->ifaces_num; i++) { if (index->ifaces[i].bInterfaceNumber == bInterfaceNumber && index->ifaces[i].bAlternateSetting == bAlternateSetting) return i; } return -1; } static int lookup_endpoint(int fd, uint8_t bEndpointAddress) { struct usb_device_index* index = lookup_usb_index(fd); if (!index) return -1; if (index->iface_cur < 0) return -1; for (int ep = 0; ep < index->ifaces[index->iface_cur].eps_num; ep++) if (index->ifaces[index->iface_cur].eps[ep].desc.bEndpointAddress == bEndpointAddress) return index->ifaces[index->iface_cur].eps[ep].handle; return -1; } #define USB_MAX_PACKET_SIZE 4096 struct usb_raw_control_event { struct usb_raw_event inner; struct usb_ctrlrequest ctrl; char data[USB_MAX_PACKET_SIZE]; }; struct usb_raw_ep_io_data { struct usb_raw_ep_io inner; char data[USB_MAX_PACKET_SIZE]; }; static void set_interface(int fd, int n) { struct usb_device_index* index = lookup_usb_index(fd); if (!index) return; if (index->iface_cur >= 0 && index->iface_cur < index->ifaces_num) { for (int ep = 0; ep < index->ifaces[index->iface_cur].eps_num; ep++) { int rv = usb_raw_ep_disable(fd, index->ifaces[index->iface_cur].eps[ep].handle); if (rv < 0) { } else { } } } if (n >= 0 && n < index->ifaces_num) { for (int ep = 0; ep < index->ifaces[n].eps_num; ep++) { int rv = usb_raw_ep_enable(fd, &index->ifaces[n].eps[ep].desc); if (rv < 0) { } else { index->ifaces[n].eps[ep].handle = rv; } } index->iface_cur = n; } } static int configure_device(int fd) { struct usb_device_index* index = lookup_usb_index(fd); if (!index) return -1; int rv = usb_raw_vbus_draw(fd, index->bMaxPower); if (rv < 0) { return rv; } rv = usb_raw_configure(fd); if (rv < 0) { return rv; } set_interface(fd, 0); return 0; } static volatile long syz_usb_connect_impl(uint64_t speed, uint64_t dev_len, const char* dev, const struct vusb_connect_descriptors* descs, lookup_connect_out_response_t lookup_connect_response_out) { if (!dev) { return -1; } int fd = usb_raw_open(); if (fd < 0) { return fd; } if (fd >= MAX_FDS) { close(fd); return -1; } struct usb_device_index* index = add_usb_index(fd, dev, dev_len); if (!index) { return -1; } char device[32]; sprintf(&device[0], "dummy_udc.%llu", procid); int rv = usb_raw_init(fd, speed, "dummy_udc", &device[0]); if (rv < 0) { return rv; } rv = usb_raw_run(fd); if (rv < 0) { return rv; } bool done = false; while (!done) { struct usb_raw_control_event event; event.inner.type = 0; event.inner.length = sizeof(event.ctrl); rv = usb_raw_event_fetch(fd, (struct usb_raw_event*)&event); if (rv < 0) { return rv; } if (event.inner.type != USB_RAW_EVENT_CONTROL) continue; char* response_data = NULL; uint32_t response_length = 0; struct usb_qualifier_descriptor qual; if (event.ctrl.bRequestType & USB_DIR_IN) { if (!lookup_connect_response_in(fd, descs, &event.ctrl, &qual, &response_data, &response_length)) { usb_raw_ep0_stall(fd); continue; } } else { if (!lookup_connect_response_out(fd, descs, &event.ctrl, &done)) { usb_raw_ep0_stall(fd); continue; } response_data = NULL; response_length = event.ctrl.wLength; } if ((event.ctrl.bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD && event.ctrl.bRequest == USB_REQ_SET_CONFIGURATION) { rv = configure_device(fd); if (rv < 0) { return rv; } } struct usb_raw_ep_io_data response; response.inner.ep = 0; response.inner.flags = 0; if (response_length > sizeof(response.data)) response_length = 0; if (event.ctrl.wLength < response_length) response_length = event.ctrl.wLength; response.inner.length = response_length; if (response_data) memcpy(&response.data[0], response_data, response_length); else memset(&response.data[0], 0, response_length); if (event.ctrl.bRequestType & USB_DIR_IN) { rv = usb_raw_ep0_write(fd, (struct usb_raw_ep_io*)&response); } else { rv = usb_raw_ep0_read(fd, (struct usb_raw_ep_io*)&response); } if (rv < 0) { return rv; } } sleep_ms(200); return fd; } static volatile long syz_usb_connect(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { uint64_t speed = a0; uint64_t dev_len = a1; const char* dev = (const char*)a2; const struct vusb_connect_descriptors* descs = (const struct vusb_connect_descriptors*)a3; return syz_usb_connect_impl(speed, dev_len, dev, descs, &lookup_connect_response_out_generic); } static volatile long syz_usb_connect_ath9k(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { uint64_t speed = a0; uint64_t dev_len = a1; const char* dev = (const char*)a2; const struct vusb_connect_descriptors* descs = (const struct vusb_connect_descriptors*)a3; return syz_usb_connect_impl(speed, dev_len, dev, descs, &lookup_connect_response_out_ath9k); } static volatile long syz_usb_control_io(volatile long a0, volatile long a1, volatile long a2) { int fd = a0; const struct vusb_descriptors* descs = (const struct vusb_descriptors*)a1; const struct vusb_responses* resps = (const struct vusb_responses*)a2; struct usb_raw_control_event event; event.inner.type = 0; event.inner.length = USB_MAX_PACKET_SIZE; int rv = usb_raw_event_fetch(fd, (struct usb_raw_event*)&event); if (rv < 0) { return rv; } if (event.inner.type != USB_RAW_EVENT_CONTROL) { return -1; } char* response_data = NULL; uint32_t response_length = 0; if ((event.ctrl.bRequestType & USB_DIR_IN) && event.ctrl.wLength) { if (!lookup_control_response(descs, resps, &event.ctrl, &response_data, &response_length)) { usb_raw_ep0_stall(fd); return -1; } } else { if ((event.ctrl.bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD || event.ctrl.bRequest == USB_REQ_SET_INTERFACE) { int iface_num = event.ctrl.wIndex; int alt_set = event.ctrl.wValue; int iface_index = lookup_interface(fd, iface_num, alt_set); if (iface_index < 0) { } else { set_interface(fd, iface_index); } } response_length = event.ctrl.wLength; } struct usb_raw_ep_io_data response; response.inner.ep = 0; response.inner.flags = 0; if (response_length > sizeof(response.data)) response_length = 0; if (event.ctrl.wLength < response_length) response_length = event.ctrl.wLength; if ((event.ctrl.bRequestType & USB_DIR_IN) && !event.ctrl.wLength) { response_length = USB_MAX_PACKET_SIZE; } response.inner.length = response_length; if (response_data) memcpy(&response.data[0], response_data, response_length); else memset(&response.data[0], 0, response_length); if ((event.ctrl.bRequestType & USB_DIR_IN) && event.ctrl.wLength) { rv = usb_raw_ep0_write(fd, (struct usb_raw_ep_io*)&response); } else { rv = usb_raw_ep0_read(fd, (struct usb_raw_ep_io*)&response); } if (rv < 0) { return rv; } sleep_ms(200); return 0; } static volatile long syz_usb_ep_write(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { int fd = a0; uint8_t ep = a1; uint32_t len = a2; char* data = (char*)a3; int ep_handle = lookup_endpoint(fd, ep); if (ep_handle < 0) { return -1; } struct usb_raw_ep_io_data io_data; io_data.inner.ep = ep_handle; io_data.inner.flags = 0; if (len > sizeof(io_data.data)) len = sizeof(io_data.data); io_data.inner.length = len; memcpy(&io_data.data[0], data, len); int rv = usb_raw_ep_write(fd, (struct usb_raw_ep_io*)&io_data); if (rv < 0) { return rv; } sleep_ms(200); return 0; } static volatile long syz_usb_ep_read(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { int fd = a0; uint8_t ep = a1; uint32_t len = a2; char* data = (char*)a3; int ep_handle = lookup_endpoint(fd, ep); if (ep_handle < 0) { return -1; } struct usb_raw_ep_io_data io_data; io_data.inner.ep = ep_handle; io_data.inner.flags = 0; if (len > sizeof(io_data.data)) len = sizeof(io_data.data); io_data.inner.length = len; int rv = usb_raw_ep_read(fd, (struct usb_raw_ep_io*)&io_data); if (rv < 0) { return rv; } memcpy(&data[0], &io_data.data[0], io_data.inner.length); sleep_ms(200); return 0; } static volatile long syz_usb_disconnect(volatile long a0) { int fd = a0; int rv = close(fd); sleep_ms(200); return rv; } static long syz_open_dev(volatile long a0, volatile long a1, volatile long a2) { if (a0 == 0xc || a0 == 0xb) { char buf[128]; sprintf(buf, "/dev/%s/%d:%d", a0 == 0xc ? "char" : "block", (uint8_t)a1, (uint8_t)a2); return open(buf, O_RDWR, 0); } else { unsigned long nb = a1; char buf[1024]; char* hash; strncpy(buf, (char*)a0, sizeof(buf) - 1); buf[sizeof(buf) - 1] = 0; while ((hash = strchr(buf, '#'))) { *hash = '0' + (char)(nb % 10); nb /= 10; } return open(buf, a2 & ~O_CREAT, 0); } } static long syz_open_procfs(volatile long a0, volatile long a1) { char buf[128]; memset(buf, 0, sizeof(buf)); if (a0 == 0) { snprintf(buf, sizeof(buf), "/proc/self/%s", (char*)a1); } else if (a0 == -1) { snprintf(buf, sizeof(buf), "/proc/thread-self/%s", (char*)a1); } else { snprintf(buf, sizeof(buf), "/proc/self/task/%d/%s", (int)a0, (char*)a1); } int fd = open(buf, O_RDWR); if (fd == -1) fd = open(buf, O_RDONLY); return fd; } static long syz_open_pts(volatile long a0, volatile long a1) { int ptyno = 0; if (ioctl(a0, TIOCGPTN, &ptyno)) return -1; char buf[128]; sprintf(buf, "/dev/pts/%d", ptyno); return open(buf, a1, 0); } static long syz_init_net_socket(volatile long domain, volatile long type, volatile long proto) { int netns = open("/proc/self/ns/net", O_RDONLY); if (netns == -1) return netns; if (setns(kInitNetNsFd, 0)) return -1; int sock = syscall(__NR_socket, domain, type, proto); int err = errno; if (setns(netns, 0)) { exit(1); } close(netns); errno = err; return sock; } static long syz_socket_connect_nvme_tcp() { return syscall(__NR_socket, -1, 0, 0); } static long syz_genetlink_get_family_id(volatile long name, volatile long sock_arg) { int fd = sock_arg; if (fd < 0) { fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC); if (fd == -1) { return -1; } } struct nlmsg nlmsg_tmp; int ret = netlink_query_family_id(&nlmsg_tmp, fd, (char*)name, false); if ((int)sock_arg < 0) close(fd); if (ret < 0) { return -1; } return ret; } //% This code is derived from puff.{c,h}, found in the zlib development. The //% original files come with the following copyright notice: //% Copyright (C) 2002-2013 Mark Adler, all rights reserved //% version 2.3, 21 Jan 2013 //% This software is provided 'as-is', without any express or implied //% warranty. In no event will the author be held liable for any damages //% arising from the use of this software. //% Permission is granted to anyone to use this software for any purpose, //% including commercial applications, and to alter it and redistribute it //% freely, subject to the following restrictions: //% 1. The origin of this software must not be misrepresented; you must not //% claim that you wrote the original software. If you use this software //% in a product, an acknowledgment in the product documentation would be //% appreciated but is not required. //% 2. Altered source versions must be plainly marked as such, and must not be //% misrepresented as being the original software. //% 3. This notice may not be removed or altered from any source distribution. //% Mark Adler madler@alumni.caltech.edu //% BEGIN CODE DERIVED FROM puff.{c,h} #define MAXBITS 15 #define MAXLCODES 286 #define MAXDCODES 30 #define MAXCODES (MAXLCODES + MAXDCODES) #define FIXLCODES 288 struct puff_state { unsigned char* out; unsigned long outlen; unsigned long outcnt; const unsigned char* in; unsigned long inlen; unsigned long incnt; int bitbuf; int bitcnt; jmp_buf env; }; static int puff_bits(struct puff_state* s, int need) { long val = s->bitbuf; while (s->bitcnt < need) { if (s->incnt == s->inlen) longjmp(s->env, 1); val |= (long)(s->in[s->incnt++]) << s->bitcnt; s->bitcnt += 8; } s->bitbuf = (int)(val >> need); s->bitcnt -= need; return (int)(val & ((1L << need) - 1)); } static int puff_stored(struct puff_state* s) { s->bitbuf = 0; s->bitcnt = 0; if (s->incnt + 4 > s->inlen) return 2; unsigned len = s->in[s->incnt++]; len |= s->in[s->incnt++] << 8; if (s->in[s->incnt++] != (~len & 0xff) || s->in[s->incnt++] != ((~len >> 8) & 0xff)) return -2; if (s->incnt + len > s->inlen) return 2; if (s->outcnt + len > s->outlen) return 1; for (; len--; s->outcnt++, s->incnt++) { if (s->in[s->incnt]) s->out[s->outcnt] = s->in[s->incnt]; } return 0; } struct puff_huffman { short* count; short* symbol; }; static int puff_decode(struct puff_state* s, const struct puff_huffman* h) { int first = 0; int index = 0; int bitbuf = s->bitbuf; int left = s->bitcnt; int code = first = index = 0; int len = 1; short* next = h->count + 1; while (1) { while (left--) { code |= bitbuf & 1; bitbuf >>= 1; int count = *next++; if (code - count < first) { s->bitbuf = bitbuf; s->bitcnt = (s->bitcnt - len) & 7; return h->symbol[index + (code - first)]; } index += count; first += count; first <<= 1; code <<= 1; len++; } left = (MAXBITS + 1) - len; if (left == 0) break; if (s->incnt == s->inlen) longjmp(s->env, 1); bitbuf = s->in[s->incnt++]; if (left > 8) left = 8; } return -10; } static int puff_construct(struct puff_huffman* h, const short* length, int n) { int len; for (len = 0; len <= MAXBITS; len++) h->count[len] = 0; int symbol; for (symbol = 0; symbol < n; symbol++) (h->count[length[symbol]])++; if (h->count[0] == n) return 0; int left = 1; for (len = 1; len <= MAXBITS; len++) { left <<= 1; left -= h->count[len]; if (left < 0) return left; } short offs[MAXBITS + 1]; offs[1] = 0; for (len = 1; len < MAXBITS; len++) offs[len + 1] = offs[len] + h->count[len]; for (symbol = 0; symbol < n; symbol++) if (length[symbol] != 0) h->symbol[offs[length[symbol]]++] = symbol; return left; } static int puff_codes(struct puff_state* s, const struct puff_huffman* lencode, const struct puff_huffman* distcode) { static const short lens[29] = { 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31, 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258}; static const short lext[29] = { 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0}; static const short dists[30] = { 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193, 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145, 8193, 12289, 16385, 24577}; static const short dext[30] = { 0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13}; int symbol; do { symbol = puff_decode(s, lencode); if (symbol < 0) return symbol; if (symbol < 256) { if (s->outcnt == s->outlen) return 1; if (symbol) s->out[s->outcnt] = symbol; s->outcnt++; } else if (symbol > 256) { symbol -= 257; if (symbol >= 29) return -10; int len = lens[symbol] + puff_bits(s, lext[symbol]); symbol = puff_decode(s, distcode); if (symbol < 0) return symbol; unsigned dist = dists[symbol] + puff_bits(s, dext[symbol]); if (dist > s->outcnt) return -11; if (s->outcnt + len > s->outlen) return 1; while (len--) { if (dist <= s->outcnt && s->out[s->outcnt - dist]) s->out[s->outcnt] = s->out[s->outcnt - dist]; s->outcnt++; } } } while (symbol != 256); return 0; } static int puff_fixed(struct puff_state* s) { static int virgin = 1; static short lencnt[MAXBITS + 1], lensym[FIXLCODES]; static short distcnt[MAXBITS + 1], distsym[MAXDCODES]; static struct puff_huffman lencode, distcode; if (virgin) { lencode.count = lencnt; lencode.symbol = lensym; distcode.count = distcnt; distcode.symbol = distsym; short lengths[FIXLCODES]; int symbol; for (symbol = 0; symbol < 144; symbol++) lengths[symbol] = 8; for (; symbol < 256; symbol++) lengths[symbol] = 9; for (; symbol < 280; symbol++) lengths[symbol] = 7; for (; symbol < FIXLCODES; symbol++) lengths[symbol] = 8; puff_construct(&lencode, lengths, FIXLCODES); for (symbol = 0; symbol < MAXDCODES; symbol++) lengths[symbol] = 5; puff_construct(&distcode, lengths, MAXDCODES); virgin = 0; } return puff_codes(s, &lencode, &distcode); } static int puff_dynamic(struct puff_state* s) { static const short order[19] = {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15}; int nlen = puff_bits(s, 5) + 257; int ndist = puff_bits(s, 5) + 1; int ncode = puff_bits(s, 4) + 4; if (nlen > MAXLCODES || ndist > MAXDCODES) return -3; short lengths[MAXCODES]; int index; for (index = 0; index < ncode; index++) lengths[order[index]] = puff_bits(s, 3); for (; index < 19; index++) lengths[order[index]] = 0; short lencnt[MAXBITS + 1], lensym[MAXLCODES]; struct puff_huffman lencode = {lencnt, lensym}; int err = puff_construct(&lencode, lengths, 19); if (err != 0) return -4; index = 0; while (index < nlen + ndist) { int symbol; int len; symbol = puff_decode(s, &lencode); if (symbol < 0) return symbol; if (symbol < 16) lengths[index++] = symbol; else { len = 0; if (symbol == 16) { if (index == 0) return -5; len = lengths[index - 1]; symbol = 3 + puff_bits(s, 2); } else if (symbol == 17) symbol = 3 + puff_bits(s, 3); else symbol = 11 + puff_bits(s, 7); if (index + symbol > nlen + ndist) return -6; while (symbol--) lengths[index++] = len; } } if (lengths[256] == 0) return -9; err = puff_construct(&lencode, lengths, nlen); if (err && (err < 0 || nlen != lencode.count[0] + lencode.count[1])) return -7; short distcnt[MAXBITS + 1], distsym[MAXDCODES]; struct puff_huffman distcode = {distcnt, distsym}; err = puff_construct(&distcode, lengths + nlen, ndist); if (err && (err < 0 || ndist != distcode.count[0] + distcode.count[1])) return -8; return puff_codes(s, &lencode, &distcode); } static int puff( unsigned char* dest, unsigned long* destlen, const unsigned char* source, unsigned long sourcelen) { struct puff_state s = { .out = dest, .outlen = *destlen, .outcnt = 0, .in = source, .inlen = sourcelen, .incnt = 0, .bitbuf = 0, .bitcnt = 0, }; int err; if (setjmp(s.env) != 0) err = 2; else { int last; do { last = puff_bits(&s, 1); int type = puff_bits(&s, 2); err = type == 0 ? puff_stored(&s) : (type == 1 ? puff_fixed(&s) : (type == 2 ? puff_dynamic(&s) : -1)); if (err != 0) break; } while (!last); } *destlen = s.outcnt; return err; } //% END CODE DERIVED FROM puff.{c,h} #define ZLIB_HEADER_WIDTH 2 static int puff_zlib_to_file(const unsigned char* source, unsigned long sourcelen, int dest_fd) { if (sourcelen < ZLIB_HEADER_WIDTH) return 0; source += ZLIB_HEADER_WIDTH; sourcelen -= ZLIB_HEADER_WIDTH; const unsigned long max_destlen = 132 << 20; void* ret = mmap(0, max_destlen, PROT_WRITE | PROT_READ, MAP_PRIVATE | MAP_ANON, -1, 0); if (ret == MAP_FAILED) return -1; unsigned char* dest = (unsigned char*)ret; unsigned long destlen = max_destlen; int err = puff(dest, &destlen, source, sourcelen); if (err) { munmap(dest, max_destlen); errno = -err; return -1; } if (write(dest_fd, dest, destlen) != (ssize_t)destlen) { munmap(dest, max_destlen); return -1; } return munmap(dest, max_destlen); } static int setup_loop_device(unsigned char* data, unsigned long size, const char* loopname, int* loopfd_p) { int err = 0, loopfd = -1; int memfd = syscall(__NR_memfd_create, "syzkaller", 0); if (memfd == -1) { err = errno; goto error; } if (puff_zlib_to_file(data, size, memfd)) { err = errno; goto error_close_memfd; } loopfd = open(loopname, O_RDWR); if (loopfd == -1) { err = errno; goto error_close_memfd; } if (ioctl(loopfd, LOOP_SET_FD, memfd)) { if (errno != EBUSY) { err = errno; goto error_close_loop; } ioctl(loopfd, LOOP_CLR_FD, 0); usleep(1000); if (ioctl(loopfd, LOOP_SET_FD, memfd)) { err = errno; goto error_close_loop; } } close(memfd); *loopfd_p = loopfd; return 0; error_close_loop: close(loopfd); error_close_memfd: close(memfd); error: errno = err; return -1; } static void reset_loop_device(const char* loopname) { int loopfd = open(loopname, O_RDWR); if (loopfd == -1) { return; } if (ioctl(loopfd, LOOP_CLR_FD, 0)) { } close(loopfd); } static long syz_mount_image( volatile long fsarg, volatile long dir, volatile long flags, volatile long optsarg, volatile long change_dir, volatile unsigned long size, volatile long image) { unsigned char* data = (unsigned char*)image; int res = -1, err = 0, need_loop_device = !!size; char* mount_opts = (char*)optsarg; char* target = (char*)dir; char* fs = (char*)fsarg; char* source = NULL; char loopname[64]; if (need_loop_device) { int loopfd; memset(loopname, 0, sizeof(loopname)); snprintf(loopname, sizeof(loopname), "/dev/loop%llu", procid); if (setup_loop_device(data, size, loopname, &loopfd) == -1) return -1; close(loopfd); source = loopname; } mkdir(target, 0777); char opts[256]; memset(opts, 0, sizeof(opts)); if (strlen(mount_opts) > (sizeof(opts) - 32)) { } strncpy(opts, mount_opts, sizeof(opts) - 32); if (strcmp(fs, "iso9660") == 0) { flags |= MS_RDONLY; } else if (strncmp(fs, "ext", 3) == 0) { bool has_remount_ro = false; char* remount_ro_start = strstr(opts, "errors=remount-ro"); if (remount_ro_start != NULL) { char after = *(remount_ro_start + strlen("errors=remount-ro")); char before = remount_ro_start == opts ? '\0' : *(remount_ro_start - 1); has_remount_ro = ((before == '\0' || before == ',') && (after == '\0' || after == ',')); } if (strstr(opts, "errors=panic") || !has_remount_ro) strcat(opts, ",errors=continue"); } else if (strcmp(fs, "xfs") == 0) { strcat(opts, ",nouuid"); } else if (strncmp(fs, "gfs2", 4) == 0 && (strstr(opts, "errors=panic") || strstr(opts, "debug"))) { strcat(opts, ",errors=withdraw"); } res = mount(source, target, fs, flags, opts); if (res == -1) { err = errno; goto error_clear_loop; } res = open(target, O_RDONLY | O_DIRECTORY); if (res == -1) { err = errno; goto error_clear_loop; } if (change_dir) { res = chdir(target); if (res == -1) { err = errno; } } error_clear_loop: if (need_loop_device) reset_loop_device(loopname); errno = err; return res; } #define noinline __attribute__((noinline)) #define __no_stack_protector #define __addrspace_guest #define __optnone #define GUEST_CODE __attribute__((section("guest"))) __no_stack_protector __addrspace_guest extern char *__start_guest, *__stop_guest; #define X86_ADDR_TEXT 0x0000 #define X86_ADDR_PD_IOAPIC 0x0000 #define X86_ADDR_GDT 0x1000 #define X86_ADDR_LDT 0x1800 #define X86_ADDR_PML4 0x2000 #define X86_ADDR_PDP 0x3000 #define X86_ADDR_PD 0x4000 #define X86_ADDR_STACK0 0x0f80 #define X86_ADDR_VAR_HLT 0x2800 #define X86_ADDR_VAR_SYSRET 0x2808 #define X86_ADDR_VAR_SYSEXIT 0x2810 #define X86_ADDR_VAR_IDT 0x3800 #define X86_ADDR_VAR_TSS64 0x3a00 #define X86_ADDR_VAR_TSS64_CPL3 0x3c00 #define X86_ADDR_VAR_TSS16 0x3d00 #define X86_ADDR_VAR_TSS16_2 0x3e00 #define X86_ADDR_VAR_TSS16_CPL3 0x3f00 #define X86_ADDR_VAR_TSS32 0x4800 #define X86_ADDR_VAR_TSS32_2 0x4a00 #define X86_ADDR_VAR_TSS32_CPL3 0x4c00 #define X86_ADDR_VAR_TSS32_VM86 0x4e00 #define X86_ADDR_VAR_VMXON_PTR 0x5f00 #define X86_ADDR_VAR_VMCS_PTR 0x5f08 #define X86_ADDR_VAR_VMEXIT_PTR 0x5f10 #define X86_ADDR_VAR_VMWRITE_FLD 0x5f18 #define X86_ADDR_VAR_VMWRITE_VAL 0x5f20 #define X86_ADDR_VAR_VMXON 0x6000 #define X86_ADDR_VAR_VMCS 0x7000 #define X86_ADDR_VAR_VMEXIT_CODE 0x9000 #define X86_ADDR_VAR_USER_CODE 0x9100 #define X86_ADDR_VAR_USER_CODE2 0x9120 #define X86_SYZOS_ADDR_ZERO 0x0 #define X86_SYZOS_ADDR_GDT 0x1000 #define X86_SYZOS_ADDR_PML4 0x2000 #define X86_SYZOS_ADDR_PDP 0x3000 #define X86_SYZOS_ADDR_PT_POOL 0x5000 #define X86_SYZOS_ADDR_VAR_IDT 0x25000 #define X86_SYZOS_ADDR_VAR_TSS 0x26000 #define X86_SYZOS_ADDR_SMRAM 0x30000 #define X86_SYZOS_ADDR_EXIT 0x40000 #define X86_SYZOS_ADDR_UEXIT (X86_SYZOS_ADDR_EXIT + 256) #define X86_SYZOS_ADDR_DIRTY_PAGES 0x41000 #define X86_SYZOS_ADDR_USER_CODE 0x50000 #define SYZOS_ADDR_EXECUTOR_CODE 0x54000 #define X86_SYZOS_ADDR_SCRATCH_CODE 0x58000 #define X86_SYZOS_ADDR_STACK_BOTTOM 0x60000 #define X86_SYZOS_ADDR_STACK0 0x60f80 #define X86_SYZOS_PER_VCPU_REGIONS_BASE 0x70000 #define X86_SYZOS_L1_VCPU_REGION_SIZE 0x40000 #define X86_SYZOS_L1_VCPU_OFFSET_VM_ARCH_SPECIFIC 0x0000 #define X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA 0x1000 #define X86_SYZOS_L2_VM_REGION_SIZE 0x8000 #define X86_SYZOS_L2_VM_OFFSET_VMCS_VMCB 0x0000 #define X86_SYZOS_L2_VM_OFFSET_VM_STACK 0x1000 #define X86_SYZOS_L2_VM_OFFSET_VM_CODE 0x2000 #define X86_SYZOS_L2_VM_OFFSET_VM_PGTABLE 0x3000 #define X86_SYZOS_L2_VM_OFFSET_MSR_BITMAP 0x7000 #define X86_SYZOS_ADDR_UNUSED 0x200000 #define X86_SYZOS_ADDR_IOAPIC 0xfec00000 #define X86_SYZOS_ADDR_VMCS_VMCB(cpu,vm) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA + (vm) * X86_SYZOS_L2_VM_REGION_SIZE + X86_SYZOS_L2_VM_OFFSET_VMCS_VMCB) #define X86_SYZOS_ADDR_VM_CODE(cpu,vm) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA + (vm) * X86_SYZOS_L2_VM_REGION_SIZE + X86_SYZOS_L2_VM_OFFSET_VM_CODE) #define X86_SYZOS_ADDR_VM_STACK(cpu,vm) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA + (vm) * X86_SYZOS_L2_VM_REGION_SIZE + X86_SYZOS_L2_VM_OFFSET_VM_STACK) #define X86_SYZOS_ADDR_VM_PGTABLE(cpu,vm) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA + (vm) * X86_SYZOS_L2_VM_REGION_SIZE + X86_SYZOS_L2_VM_OFFSET_VM_PGTABLE) #define X86_SYZOS_ADDR_MSR_BITMAP(cpu,vm) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA + (vm) * X86_SYZOS_L2_VM_REGION_SIZE + X86_SYZOS_L2_VM_OFFSET_MSR_BITMAP) #define X86_SYZOS_ADDR_VM_ARCH_SPECIFIC(cpu) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_VM_ARCH_SPECIFIC) #define X86_SYZOS_SEL_CODE 0x8 #define X86_SYZOS_SEL_DATA 0x10 #define X86_SYZOS_SEL_TSS64 0x18 #define X86_CR0_PE 1ULL #define X86_CR0_MP (1ULL << 1) #define X86_CR0_EM (1ULL << 2) #define X86_CR0_TS (1ULL << 3) #define X86_CR0_ET (1ULL << 4) #define X86_CR0_NE (1ULL << 5) #define X86_CR0_WP (1ULL << 16) #define X86_CR0_AM (1ULL << 18) #define X86_CR0_NW (1ULL << 29) #define X86_CR0_CD (1ULL << 30) #define X86_CR0_PG (1ULL << 31) #define X86_CR4_VME 1ULL #define X86_CR4_PVI (1ULL << 1) #define X86_CR4_TSD (1ULL << 2) #define X86_CR4_DE (1ULL << 3) #define X86_CR4_PSE (1ULL << 4) #define X86_CR4_PAE (1ULL << 5) #define X86_CR4_MCE (1ULL << 6) #define X86_CR4_PGE (1ULL << 7) #define X86_CR4_PCE (1ULL << 8) #define X86_CR4_OSFXSR (1ULL << 8) #define X86_CR4_OSXMMEXCPT (1ULL << 10) #define X86_CR4_UMIP (1ULL << 11) #define X86_CR4_VMXE (1ULL << 13) #define X86_CR4_SMXE (1ULL << 14) #define X86_CR4_FSGSBASE (1ULL << 16) #define X86_CR4_PCIDE (1ULL << 17) #define X86_CR4_OSXSAVE (1ULL << 18) #define X86_CR4_SMEP (1ULL << 20) #define X86_CR4_SMAP (1ULL << 21) #define X86_CR4_PKE (1ULL << 22) #define X86_EFER_SCE 1ULL #define X86_EFER_LME (1ULL << 8) #define X86_EFER_LMA (1ULL << 10) #define X86_EFER_NXE (1ULL << 11) #define X86_EFER_SVME (1ULL << 12) #define X86_EFER_LMSLE (1ULL << 13) #define X86_EFER_FFXSR (1ULL << 14) #define X86_EFER_TCE (1ULL << 15) #define X86_PDE32_PRESENT 1UL #define X86_PDE32_RW (1UL << 1) #define X86_PDE32_USER (1UL << 2) #define X86_PDE32_PS (1UL << 7) #define X86_PDE64_PRESENT 1 #define X86_PDE64_RW (1ULL << 1) #define X86_PDE64_USER (1ULL << 2) #define X86_PDE64_ACCESSED (1ULL << 5) #define X86_PDE64_DIRTY (1ULL << 6) #define X86_PDE64_PS (1ULL << 7) #define X86_PDE64_G (1ULL << 8) #define EPT_MEMTYPE_WB (6ULL << 3) #define EPT_ACCESSED (1ULL << 8) #define EPT_DIRTY (1ULL << 9) #define X86_SEL_LDT (1 << 3) #define X86_SEL_CS16 (2 << 3) #define X86_SEL_DS16 (3 << 3) #define X86_SEL_CS16_CPL3 ((4 << 3) + 3) #define X86_SEL_DS16_CPL3 ((5 << 3) + 3) #define X86_SEL_CS32 (6 << 3) #define X86_SEL_DS32 (7 << 3) #define X86_SEL_CS32_CPL3 ((8 << 3) + 3) #define X86_SEL_DS32_CPL3 ((9 << 3) + 3) #define X86_SEL_CS64 (10 << 3) #define X86_SEL_DS64 (11 << 3) #define X86_SEL_CS64_CPL3 ((12 << 3) + 3) #define X86_SEL_DS64_CPL3 ((13 << 3) + 3) #define X86_SEL_CGATE16 (14 << 3) #define X86_SEL_TGATE16 (15 << 3) #define X86_SEL_CGATE32 (16 << 3) #define X86_SEL_TGATE32 (17 << 3) #define X86_SEL_CGATE64 (18 << 3) #define X86_SEL_CGATE64_HI (19 << 3) #define X86_SEL_TSS16 (20 << 3) #define X86_SEL_TSS16_2 (21 << 3) #define X86_SEL_TSS16_CPL3 ((22 << 3) + 3) #define X86_SEL_TSS32 (23 << 3) #define X86_SEL_TSS32_2 (24 << 3) #define X86_SEL_TSS32_CPL3 ((25 << 3) + 3) #define X86_SEL_TSS32_VM86 (26 << 3) #define X86_SEL_TSS64 (27 << 3) #define X86_SEL_TSS64_HI (28 << 3) #define X86_SEL_TSS64_CPL3 ((29 << 3) + 3) #define X86_SEL_TSS64_CPL3_HI (30 << 3) #define X86_MSR_IA32_FEATURE_CONTROL 0x3a #define X86_MSR_IA32_VMX_BASIC 0x480 #define X86_MSR_IA32_SMBASE 0x9e #define X86_MSR_IA32_SYSENTER_CS 0x174 #define X86_MSR_IA32_SYSENTER_ESP 0x175 #define X86_MSR_IA32_SYSENTER_EIP 0x176 #define X86_MSR_IA32_CR_PAT 0x277 #define X86_MSR_CORE_PERF_GLOBAL_CTRL 0x38f #define X86_MSR_IA32_VMX_TRUE_PINBASED_CTLS 0x48d #define X86_MSR_IA32_VMX_TRUE_PROCBASED_CTLS 0x48e #define X86_MSR_IA32_VMX_TRUE_EXIT_CTLS 0x48f #define X86_MSR_IA32_VMX_TRUE_ENTRY_CTLS 0x490 #define X86_MSR_IA32_EFER 0xc0000080 #define X86_MSR_IA32_STAR 0xC0000081 #define X86_MSR_IA32_LSTAR 0xC0000082 #define X86_MSR_FS_BASE 0xc0000100 #define X86_MSR_GS_BASE 0xc0000101 #define X86_MSR_VM_HSAVE_PA 0xc0010117 #define X86_MSR_IA32_VMX_PROCBASED_CTLS2 0x48B #define RFLAGS_1_BIT (1ULL << 1) #define CPU_BASED_HLT_EXITING (1U << 7) #define CPU_BASED_RDTSC_EXITING (1U << 12) #define AR_TSS_AVAILABLE 0x0089 #define SVM_ATTR_LDTR_UNUSABLE 0x0000 #define VMX_AR_TSS_BUSY 0x008b #define VMX_AR_TSS_AVAILABLE 0x0089 #define VMX_AR_LDTR_UNUSABLE 0x10000 #define VM_ENTRY_IA32E_MODE (1U << 9) #define SECONDARY_EXEC_ENABLE_EPT (1U << 1) #define SECONDARY_EXEC_ENABLE_RDTSCP (1U << 3) #define VM_EXIT_HOST_ADDR_SPACE_SIZE (1U << 9) #define CPU_BASED_ACTIVATE_SECONDARY_CONTROLS (1U << 31) #define VMX_ACCESS_RIGHTS_P (1 << 7) #define VMX_ACCESS_RIGHTS_S (1 << 4) #define VMX_ACCESS_RIGHTS_TYPE_A (1 << 0) #define VMX_ACCESS_RIGHTS_TYPE_RW (1 << 1) #define VMX_ACCESS_RIGHTS_TYPE_E (1 << 3) #define VMX_ACCESS_RIGHTS_G (1 << 15) #define VMX_ACCESS_RIGHTS_DB (1 << 14) #define VMX_ACCESS_RIGHTS_L (1 << 13) #define VMX_AR_64BIT_DATA_STACK (VMX_ACCESS_RIGHTS_P | VMX_ACCESS_RIGHTS_S | VMX_ACCESS_RIGHTS_TYPE_RW | VMX_ACCESS_RIGHTS_TYPE_A | VMX_ACCESS_RIGHTS_G | VMX_ACCESS_RIGHTS_DB) #define VMX_AR_64BIT_CODE (VMX_ACCESS_RIGHTS_P | VMX_ACCESS_RIGHTS_S | VMX_ACCESS_RIGHTS_TYPE_E | VMX_ACCESS_RIGHTS_TYPE_RW | VMX_ACCESS_RIGHTS_TYPE_A | VMX_ACCESS_RIGHTS_G | VMX_ACCESS_RIGHTS_L) #define VMCS_VIRTUAL_PROCESSOR_ID 0x00000000 #define VMCS_POSTED_INTR_NV 0x00000002 #define VMCS_MSR_BITMAP 0x00002004 #define VMCS_VMREAD_BITMAP 0x00002006 #define VMCS_VMWRITE_BITMAP 0x00002008 #define VMCS_EPT_POINTER 0x0000201a #define VMCS_LINK_POINTER 0x00002800 #define VMCS_PIN_BASED_VM_EXEC_CONTROL 0x00004000 #define VMCS_CPU_BASED_VM_EXEC_CONTROL 0x00004002 #define VMCS_EXCEPTION_BITMAP 0x00004004 #define VMCS_PAGE_FAULT_ERROR_CODE_MASK 0x00004006 #define VMCS_PAGE_FAULT_ERROR_CODE_MATCH 0x00004008 #define VMCS_CR3_TARGET_COUNT 0x0000400a #define VMCS_VM_EXIT_CONTROLS 0x0000400c #define VMCS_VM_EXIT_MSR_STORE_COUNT 0x0000400e #define VMCS_VM_EXIT_MSR_LOAD_COUNT 0x00004010 #define VMCS_VM_ENTRY_CONTROLS 0x00004012 #define VMCS_VM_ENTRY_MSR_LOAD_COUNT 0x00004014 #define VMCS_VM_ENTRY_INTR_INFO_FIELD 0x00004016 #define VMCS_TPR_THRESHOLD 0x0000401c #define VMCS_SECONDARY_VM_EXEC_CONTROL 0x0000401e #define VMCS_VM_INSTRUCTION_ERROR 0x00004400 #define VMCS_VM_EXIT_REASON 0x00004402 #define VMCS_VMX_PREEMPTION_TIMER_VALUE 0x0000482e #define VMCS_CR0_GUEST_HOST_MASK 0x00006000 #define VMCS_CR4_GUEST_HOST_MASK 0x00006002 #define VMCS_CR0_READ_SHADOW 0x00006004 #define VMCS_CR4_READ_SHADOW 0x00006006 #define VMCS_HOST_ES_SELECTOR 0x00000c00 #define VMCS_HOST_CS_SELECTOR 0x00000c02 #define VMCS_HOST_SS_SELECTOR 0x00000c04 #define VMCS_HOST_DS_SELECTOR 0x00000c06 #define VMCS_HOST_FS_SELECTOR 0x00000c08 #define VMCS_HOST_GS_SELECTOR 0x00000c0a #define VMCS_HOST_TR_SELECTOR 0x00000c0c #define VMCS_HOST_IA32_PAT 0x00002c00 #define VMCS_HOST_IA32_EFER 0x00002c02 #define VMCS_HOST_IA32_PERF_GLOBAL_CTRL 0x00002c04 #define VMCS_HOST_IA32_SYSENTER_CS 0x00004c00 #define VMCS_HOST_CR0 0x00006c00 #define VMCS_HOST_CR3 0x00006c02 #define VMCS_HOST_CR4 0x00006c04 #define VMCS_HOST_FS_BASE 0x00006c06 #define VMCS_HOST_GS_BASE 0x00006c08 #define VMCS_HOST_TR_BASE 0x00006c0a #define VMCS_HOST_GDTR_BASE 0x00006c0c #define VMCS_HOST_IDTR_BASE 0x00006c0e #define VMCS_HOST_IA32_SYSENTER_ESP 0x00006c10 #define VMCS_HOST_IA32_SYSENTER_EIP 0x00006c12 #define VMCS_HOST_RSP 0x00006c14 #define VMCS_HOST_RIP 0x00006c16 #define VMCS_GUEST_INTR_STATUS 0x00000810 #define VMCS_GUEST_PML_INDEX 0x00000812 #define VMCS_GUEST_IA32_DEBUGCTL 0x00002802 #define VMCS_GUEST_IA32_PAT 0x00002804 #define VMCS_GUEST_IA32_EFER 0x00002806 #define VMCS_GUEST_IA32_PERF_GLOBAL_CTRL 0x00002808 #define VMCS_GUEST_ES_SELECTOR 0x00000800 #define VMCS_GUEST_CS_SELECTOR 0x00000802 #define VMCS_GUEST_SS_SELECTOR 0x00000804 #define VMCS_GUEST_DS_SELECTOR 0x00000806 #define VMCS_GUEST_FS_SELECTOR 0x00000808 #define VMCS_GUEST_GS_SELECTOR 0x0000080a #define VMCS_GUEST_LDTR_SELECTOR 0x0000080c #define VMCS_GUEST_TR_SELECTOR 0x0000080e #define VMCS_GUEST_ES_LIMIT 0x00004800 #define VMCS_GUEST_CS_LIMIT 0x00004802 #define VMCS_GUEST_SS_LIMIT 0x00004804 #define VMCS_GUEST_DS_LIMIT 0x00004806 #define VMCS_GUEST_FS_LIMIT 0x00004808 #define VMCS_GUEST_GS_LIMIT 0x0000480a #define VMCS_GUEST_LDTR_LIMIT 0x0000480c #define VMCS_GUEST_TR_LIMIT 0x0000480e #define VMCS_GUEST_GDTR_LIMIT 0x00004810 #define VMCS_GUEST_IDTR_LIMIT 0x00004812 #define VMCS_GUEST_ES_ACCESS_RIGHTS 0x00004814 #define VMCS_GUEST_CS_ACCESS_RIGHTS 0x00004816 #define VMCS_GUEST_SS_ACCESS_RIGHTS 0x00004818 #define VMCS_GUEST_DS_ACCESS_RIGHTS 0x0000481a #define VMCS_GUEST_FS_ACCESS_RIGHTS 0x0000481c #define VMCS_GUEST_GS_ACCESS_RIGHTS 0x0000481e #define VMCS_GUEST_LDTR_ACCESS_RIGHTS 0x00004820 #define VMCS_GUEST_TR_ACCESS_RIGHTS 0x00004822 #define VMCS_GUEST_ACTIVITY_STATE 0x00004824 #define VMCS_GUEST_INTERRUPTIBILITY_INFO 0x00004826 #define VMCS_GUEST_SYSENTER_CS 0x0000482a #define VMCS_GUEST_CR0 0x00006800 #define VMCS_GUEST_CR3 0x00006802 #define VMCS_GUEST_CR4 0x00006804 #define VMCS_GUEST_ES_BASE 0x00006806 #define VMCS_GUEST_CS_BASE 0x00006808 #define VMCS_GUEST_SS_BASE 0x0000680a #define VMCS_GUEST_DS_BASE 0x0000680c #define VMCS_GUEST_FS_BASE 0x0000680e #define VMCS_GUEST_GS_BASE 0x00006810 #define VMCS_GUEST_LDTR_BASE 0x00006812 #define VMCS_GUEST_TR_BASE 0x00006814 #define VMCS_GUEST_GDTR_BASE 0x00006816 #define VMCS_GUEST_IDTR_BASE 0x00006818 #define VMCS_GUEST_DR7 0x0000681a #define VMCS_GUEST_RSP 0x0000681c #define VMCS_GUEST_RIP 0x0000681e #define VMCS_GUEST_RFLAGS 0x00006820 #define VMCS_GUEST_PENDING_DBG_EXCEPTIONS 0x00006822 #define VMCS_GUEST_SYSENTER_ESP 0x00006824 #define VMCS_GUEST_SYSENTER_EIP 0x00006826 #define VMCB_CTRL_INTERCEPT_VEC3 0x0c #define VMCB_CTRL_INTERCEPT_VEC3_ALL (0xffffffff) #define VMCB_CTRL_INTERCEPT_VEC4 0x10 #define VMCB_CTRL_INTERCEPT_VEC4_ALL (0x3ff) #define VMCB_CTRL_ASID 0x058 #define VMCB_EXIT_CODE 0x070 #define VMCB_CTRL_NP_ENABLE 0x090 #define VMCB_CTRL_NPT_ENABLE_BIT 0 #define VMCB_CTRL_N_CR3 0x0b0 #define VMCB_GUEST_ES_SEL 0x400 #define VMCB_GUEST_ES_ATTR 0x402 #define VMCB_GUEST_ES_LIM 0x404 #define VMCB_GUEST_ES_BASE 0x408 #define VMCB_GUEST_CS_SEL 0x410 #define VMCB_GUEST_CS_ATTR 0x412 #define VMCB_GUEST_CS_LIM 0x414 #define VMCB_GUEST_CS_BASE 0x418 #define VMCB_GUEST_SS_SEL 0x420 #define VMCB_GUEST_SS_ATTR 0x422 #define VMCB_GUEST_SS_LIM 0x424 #define VMCB_GUEST_SS_BASE 0x428 #define VMCB_GUEST_DS_SEL 0x430 #define VMCB_GUEST_DS_ATTR 0x432 #define VMCB_GUEST_DS_LIM 0x434 #define VMCB_GUEST_DS_BASE 0x438 #define VMCB_GUEST_FS_SEL 0x440 #define VMCB_GUEST_FS_ATTR 0x442 #define VMCB_GUEST_FS_LIM 0x444 #define VMCB_GUEST_FS_BASE 0x448 #define VMCB_GUEST_GS_SEL 0x450 #define VMCB_GUEST_GS_ATTR 0x452 #define VMCB_GUEST_GS_LIM 0x454 #define VMCB_GUEST_GS_BASE 0x458 #define VMCB_GUEST_IDTR_SEL 0x480 #define VMCB_GUEST_IDTR_ATTR 0x482 #define VMCB_GUEST_IDTR_LIM 0x484 #define VMCB_GUEST_IDTR_BASE 0x488 #define VMCB_GUEST_GDTR_SEL 0x460 #define VMCB_GUEST_GDTR_ATTR 0x462 #define VMCB_GUEST_GDTR_LIM 0x464 #define VMCB_GUEST_GDTR_BASE 0x468 #define VMCB_GUEST_LDTR_SEL 0x470 #define VMCB_GUEST_LDTR_ATTR 0x472 #define VMCB_GUEST_LDTR_LIM 0x474 #define VMCB_GUEST_LDTR_BASE 0x478 #define VMCB_GUEST_TR_SEL 0x490 #define VMCB_GUEST_TR_ATTR 0x492 #define VMCB_GUEST_TR_LIM 0x494 #define VMCB_GUEST_TR_BASE 0x498 #define VMCB_GUEST_EFER 0x4d0 #define VMCB_GUEST_CR4 0x548 #define VMCB_GUEST_CR3 0x550 #define VMCB_GUEST_CR0 0x558 #define VMCB_GUEST_DR7 0x560 #define VMCB_GUEST_DR6 0x568 #define VMCB_GUEST_RFLAGS 0x570 #define VMCB_GUEST_RIP 0x578 #define VMCB_GUEST_RSP 0x5d8 #define VMCB_GUEST_PAT 0x668 #define VMCB_GUEST_DEBUGCTL 0x670 #define SVM_ATTR_G (1 << 15) #define SVM_ATTR_DB (1 << 14) #define SVM_ATTR_L (1 << 13) #define SVM_ATTR_P (1 << 7) #define SVM_ATTR_S (1 << 4) #define SVM_ATTR_TYPE_A (1 << 0) #define SVM_ATTR_TYPE_RW (1 << 1) #define SVM_ATTR_TYPE_E (1 << 3) #define SVM_ATTR_64BIT_CODE (SVM_ATTR_P | SVM_ATTR_S | SVM_ATTR_TYPE_E | SVM_ATTR_TYPE_RW | SVM_ATTR_TYPE_A | SVM_ATTR_L | SVM_ATTR_G) #define SVM_ATTR_64BIT_DATA (SVM_ATTR_P | SVM_ATTR_S | SVM_ATTR_TYPE_RW | SVM_ATTR_TYPE_A | SVM_ATTR_DB | SVM_ATTR_G) #define X86_NEXT_INSN $0xbadc0de #define X86_PREFIX_SIZE 0xba1d #define KVM_MAX_VCPU 4 #define KVM_PAGE_SIZE (1 << 12) #define KVM_GUEST_PAGES 1024 #define KVM_GUEST_MEM_SIZE (KVM_GUEST_PAGES * KVM_PAGE_SIZE) #define SZ_4K 0x00001000 #define SZ_64K 0x00010000 #define GENMASK_ULL(h,l) (((~0ULL) - (1ULL << (l)) + 1ULL) & (~0ULL >> (63 - (h)))) extern char* __start_guest; static inline uintptr_t executor_fn_guest_addr(void* fn) { volatile uintptr_t start = (uintptr_t)&__start_guest; volatile uintptr_t offset = SYZOS_ADDR_EXECUTOR_CODE; return (uintptr_t)fn - start + offset; } typedef enum { SYZOS_API_UEXIT = 0, SYZOS_API_CODE = 10, SYZOS_API_CPUID = 100, SYZOS_API_WRMSR = 101, SYZOS_API_RDMSR = 102, SYZOS_API_WR_CRN = 103, SYZOS_API_WR_DRN = 104, SYZOS_API_IN_DX = 105, SYZOS_API_OUT_DX = 106, SYZOS_API_SET_IRQ_HANDLER = 200, SYZOS_API_ENABLE_NESTED = 300, SYZOS_API_NESTED_CREATE_VM = 301, SYZOS_API_NESTED_LOAD_CODE = 302, SYZOS_API_NESTED_VMLAUNCH = 303, SYZOS_API_NESTED_VMRESUME = 304, SYZOS_API_NESTED_INTEL_VMWRITE_MASK = 340, SYZOS_API_NESTED_AMD_VMCB_WRITE_MASK = 380, SYZOS_API_NESTED_AMD_INVLPGA = 381, SYZOS_API_NESTED_AMD_STGI = 382, SYZOS_API_NESTED_AMD_CLGI = 383, SYZOS_API_NESTED_AMD_INJECT_EVENT = 384, SYZOS_API_NESTED_AMD_SET_INTERCEPT = 385, SYZOS_API_NESTED_AMD_VMLOAD = 386, SYZOS_API_NESTED_AMD_VMSAVE = 387, SYZOS_API_STOP, } syzos_api_id; struct api_call_header { uint64_t call; uint64_t size; }; struct api_call_uexit { struct api_call_header header; uint64_t exit_code; }; struct api_call_code { struct api_call_header header; uint8_t insns[]; }; struct api_call_nested_load_code { struct api_call_header header; uint64_t vm_id; uint8_t insns[]; }; struct api_call_cpuid { struct api_call_header header; uint32_t eax; uint32_t ecx; }; struct api_call_1 { struct api_call_header header; uint64_t arg; }; struct api_call_2 { struct api_call_header header; uint64_t args[2]; }; struct api_call_3 { struct api_call_header header; uint64_t args[3]; }; struct api_call_5 { struct api_call_header header; uint64_t args[5]; }; struct l2_guest_regs { uint64_t rax, rbx, rcx, rdx, rsi, rdi, rbp; uint64_t r8, r9, r10, r11, r12, r13, r14, r15; }; GUEST_CODE static void guest_uexit(uint64_t exit_code); GUEST_CODE static void nested_vm_exit_handler_intel(uint64_t exit_reason, struct l2_guest_regs* regs); GUEST_CODE static void guest_execute_code(uint8_t* insns, uint64_t size); GUEST_CODE static void guest_handle_cpuid(uint32_t eax, uint32_t ecx); GUEST_CODE static void guest_handle_wrmsr(uint64_t reg, uint64_t val); GUEST_CODE static void guest_handle_rdmsr(uint64_t reg); GUEST_CODE static void guest_handle_wr_crn(struct api_call_2* cmd); GUEST_CODE static void guest_handle_wr_drn(struct api_call_2* cmd); GUEST_CODE static void guest_handle_in_dx(struct api_call_2* cmd); GUEST_CODE static void guest_handle_out_dx(struct api_call_3* cmd); GUEST_CODE static void guest_handle_set_irq_handler(struct api_call_2* cmd); GUEST_CODE static void guest_handle_enable_nested(struct api_call_1* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_create_vm(struct api_call_1* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_load_code(struct api_call_nested_load_code* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_vmlaunch(struct api_call_1* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_vmresume(struct api_call_1* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_intel_vmwrite_mask(struct api_call_5* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_vmcb_write_mask(struct api_call_5* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_invlpga(struct api_call_2* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_stgi(); GUEST_CODE static void guest_handle_nested_amd_clgi(); GUEST_CODE static void guest_handle_nested_amd_inject_event(struct api_call_5* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_set_intercept(struct api_call_5* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_vmload(struct api_call_1* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_vmsave(struct api_call_1* cmd, uint64_t cpu_id); typedef enum { UEXIT_END = (uint64_t)-1, UEXIT_IRQ = (uint64_t)-2, UEXIT_ASSERT = (uint64_t)-3, } uexit_code; typedef enum { CPU_VENDOR_INTEL, CPU_VENDOR_AMD, } cpu_vendor_id; __attribute__((naked)) GUEST_CODE static void dummy_null_handler() { asm("iretq"); } __attribute__((naked)) GUEST_CODE static void uexit_irq_handler() { asm volatile(R"( movq $-2, %rdi call guest_uexit iretq )"); } __attribute__((used)) GUEST_CODE static void guest_main(uint64_t size, uint64_t cpu) { uint64_t addr = X86_SYZOS_ADDR_USER_CODE + cpu * KVM_PAGE_SIZE; while (size >= sizeof(struct api_call_header)) { struct api_call_header* cmd = (struct api_call_header*)addr; if (cmd->call >= SYZOS_API_STOP) return; if (cmd->size > size) return; volatile uint64_t call = cmd->call; if (call == SYZOS_API_UEXIT) { struct api_call_uexit* ucmd = (struct api_call_uexit*)cmd; guest_uexit(ucmd->exit_code); } else if (call == SYZOS_API_CODE) { struct api_call_code* ccmd = (struct api_call_code*)cmd; guest_execute_code(ccmd->insns, cmd->size - sizeof(struct api_call_header)); } else if (call == SYZOS_API_CPUID) { struct api_call_cpuid* ccmd = (struct api_call_cpuid*)cmd; guest_handle_cpuid(ccmd->eax, ccmd->ecx); } else if (call == SYZOS_API_WRMSR) { struct api_call_2* ccmd = (struct api_call_2*)cmd; guest_handle_wrmsr(ccmd->args[0], ccmd->args[1]); } else if (call == SYZOS_API_RDMSR) { struct api_call_1* ccmd = (struct api_call_1*)cmd; guest_handle_rdmsr(ccmd->arg); } else if (call == SYZOS_API_WR_CRN) { guest_handle_wr_crn((struct api_call_2*)cmd); } else if (call == SYZOS_API_WR_DRN) { guest_handle_wr_drn((struct api_call_2*)cmd); } else if (call == SYZOS_API_IN_DX) { guest_handle_in_dx((struct api_call_2*)cmd); } else if (call == SYZOS_API_OUT_DX) { guest_handle_out_dx((struct api_call_3*)cmd); } else if (call == SYZOS_API_SET_IRQ_HANDLER) { guest_handle_set_irq_handler((struct api_call_2*)cmd); } else if (call == SYZOS_API_ENABLE_NESTED) { guest_handle_enable_nested((struct api_call_1*)cmd, cpu); } else if (call == SYZOS_API_NESTED_CREATE_VM) { guest_handle_nested_create_vm((struct api_call_1*)cmd, cpu); } else if (call == SYZOS_API_NESTED_LOAD_CODE) { guest_handle_nested_load_code((struct api_call_nested_load_code*)cmd, cpu); } else if (call == SYZOS_API_NESTED_VMLAUNCH) { guest_handle_nested_vmlaunch((struct api_call_1*)cmd, cpu); } else if (call == SYZOS_API_NESTED_VMRESUME) { guest_handle_nested_vmresume((struct api_call_1*)cmd, cpu); } else if (call == SYZOS_API_NESTED_INTEL_VMWRITE_MASK) { guest_handle_nested_intel_vmwrite_mask((struct api_call_5*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_VMCB_WRITE_MASK) { guest_handle_nested_amd_vmcb_write_mask((struct api_call_5*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_INVLPGA) { guest_handle_nested_amd_invlpga((struct api_call_2*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_STGI) { guest_handle_nested_amd_stgi(); } else if (call == SYZOS_API_NESTED_AMD_CLGI) { guest_handle_nested_amd_clgi(); } else if (call == SYZOS_API_NESTED_AMD_INJECT_EVENT) { guest_handle_nested_amd_inject_event((struct api_call_5*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_SET_INTERCEPT) { guest_handle_nested_amd_set_intercept((struct api_call_5*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_VMLOAD) { guest_handle_nested_amd_vmload((struct api_call_1*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_VMSAVE) { guest_handle_nested_amd_vmsave((struct api_call_1*)cmd, cpu); } addr += cmd->size; size -= cmd->size; }; guest_uexit((uint64_t)-1); } GUEST_CODE static noinline void guest_execute_code(uint8_t* insns, uint64_t size) { volatile void (*fn)() = (volatile void (*)())insns; fn(); } __attribute__((used)) GUEST_CODE static noinline void guest_uexit(uint64_t exit_code) { volatile uint64_t* ptr = (volatile uint64_t*)X86_SYZOS_ADDR_UEXIT; *ptr = exit_code; } GUEST_CODE static noinline void guest_handle_cpuid(uint32_t eax, uint32_t ecx) { asm volatile( "cpuid\n" : : "a"(eax), "c"(ecx) : "rbx", "rdx"); } GUEST_CODE static noinline void wrmsr(uint64_t reg, uint64_t val) { asm volatile( "wrmsr" : : "c"(reg), "a"((uint32_t)val), "d"((uint32_t)(val >> 32)) : "memory"); } GUEST_CODE static noinline void guest_handle_wrmsr(uint64_t reg, uint64_t val) { wrmsr(reg, val); } GUEST_CODE static noinline uint64_t rdmsr(uint64_t msr_id) { uint32_t low = 0, high = 0; asm volatile("rdmsr" : "=a"(low), "=d"(high) : "c"(msr_id)); return ((uint64_t)high << 32) | low; } GUEST_CODE static noinline void guest_handle_rdmsr(uint64_t reg) { (void)rdmsr(reg); } GUEST_CODE static noinline void guest_handle_wr_crn(struct api_call_2* cmd) { uint64_t value = cmd->args[1]; volatile uint64_t reg = cmd->args[0]; if (reg == 0) { asm volatile("movq %0, %%cr0" ::"r"(value) : "memory"); return; } if (reg == 2) { asm volatile("movq %0, %%cr2" ::"r"(value) : "memory"); return; } if (reg == 3) { asm volatile("movq %0, %%cr3" ::"r"(value) : "memory"); return; } if (reg == 4) { asm volatile("movq %0, %%cr4" ::"r"(value) : "memory"); return; } if (reg == 8) { asm volatile("movq %0, %%cr8" ::"r"(value) : "memory"); return; } } GUEST_CODE static noinline void guest_handle_wr_drn(struct api_call_2* cmd) { uint64_t value = cmd->args[1]; volatile uint64_t reg = cmd->args[0]; if (reg == 0) { asm volatile("movq %0, %%dr0" ::"r"(value) : "memory"); return; } if (reg == 1) { asm volatile("movq %0, %%dr1" ::"r"(value) : "memory"); return; } if (reg == 2) { asm volatile("movq %0, %%dr2" ::"r"(value) : "memory"); return; } if (reg == 3) { asm volatile("movq %0, %%dr3" ::"r"(value) : "memory"); return; } if (reg == 4) { asm volatile("movq %0, %%dr4" ::"r"(value) : "memory"); return; } if (reg == 5) { asm volatile("movq %0, %%dr5" ::"r"(value) : "memory"); return; } if (reg == 6) { asm volatile("movq %0, %%dr6" ::"r"(value) : "memory"); return; } if (reg == 7) { asm volatile("movq %0, %%dr7" ::"r"(value) : "memory"); return; } } GUEST_CODE static noinline void guest_handle_in_dx(struct api_call_2* cmd) { uint16_t port = cmd->args[0]; volatile int size = cmd->args[1]; if (size == 1) { uint8_t unused; asm volatile("inb %1, %0" : "=a"(unused) : "d"(port)); return; } if (size == 2) { uint16_t unused; asm volatile("inw %1, %0" : "=a"(unused) : "d"(port)); return; } if (size == 4) { uint32_t unused; asm volatile("inl %1, %0" : "=a"(unused) : "d"(port)); } return; } GUEST_CODE static noinline void guest_handle_out_dx(struct api_call_3* cmd) { uint16_t port = cmd->args[0]; volatile int size = cmd->args[1]; uint32_t data = (uint32_t)cmd->args[2]; if (size == 1) { asm volatile("outb %b0, %w1" ::"a"(data), "d"(port)); return; } if (size == 2) { asm volatile("outw %w0, %w1" ::"a"(data), "d"(port)); return; } if (size == 4) { asm volatile("outl %k0, %w1" ::"a"(data), "d"(port)); return; } } struct idt_entry_64 { uint16_t offset_low; uint16_t selector; uint8_t ist; uint8_t type_attr; uint16_t offset_mid; uint32_t offset_high; uint32_t reserved; } __attribute__((packed)); GUEST_CODE static void set_idt_gate(uint8_t vector, uint64_t handler) { volatile struct idt_entry_64* idt = (volatile struct idt_entry_64*)(X86_SYZOS_ADDR_VAR_IDT); volatile struct idt_entry_64* idt_entry = &idt[vector]; idt_entry->offset_low = (uint16_t)handler; idt_entry->offset_mid = (uint16_t)(handler >> 16); idt_entry->offset_high = (uint32_t)(handler >> 32); idt_entry->selector = X86_SYZOS_SEL_CODE; idt_entry->type_attr = 0x8E; idt_entry->ist = 0; idt_entry->reserved = 0; } GUEST_CODE static noinline void guest_handle_set_irq_handler(struct api_call_2* cmd) { uint8_t vector = (uint8_t)cmd->args[0]; uint64_t type = cmd->args[1]; volatile uint64_t handler_addr = 0; if (type == 1) handler_addr = executor_fn_guest_addr(dummy_null_handler); else if (type == 2) handler_addr = executor_fn_guest_addr(uexit_irq_handler); set_idt_gate(vector, handler_addr); } GUEST_CODE static cpu_vendor_id get_cpu_vendor(void) { uint32_t ebx, eax = 0; asm volatile( "cpuid" : "+a"(eax), "=b"(ebx) : : "ecx", "edx"); if (ebx == 0x756e6547) { return CPU_VENDOR_INTEL; } else if (ebx == 0x68747541) { return CPU_VENDOR_AMD; } else { guest_uexit(UEXIT_ASSERT); return CPU_VENDOR_INTEL; } } GUEST_CODE static inline uint64_t read_cr0(void) { uint64_t val; asm volatile("mov %%cr0, %0" : "=r"(val)); return val; } GUEST_CODE static inline uint64_t read_cr3(void) { uint64_t val; asm volatile("mov %%cr3, %0" : "=r"(val)); return val; } GUEST_CODE static inline uint64_t read_cr4(void) { uint64_t val; asm volatile("mov %%cr4, %0" : "=r"(val)); return val; } GUEST_CODE static inline void write_cr4(uint64_t val) { asm volatile("mov %0, %%cr4" : : "r"(val)); } GUEST_CODE static noinline void vmwrite(uint64_t field, uint64_t value) { uint8_t error = 0; asm volatile("vmwrite %%rax, %%rbx; setna %0" : "=q"(error) : "a"(value), "b"(field) : "cc", "memory"); if (error) guest_uexit(UEXIT_ASSERT); } GUEST_CODE static noinline uint64_t vmread(uint64_t field) { uint64_t value; asm volatile("vmread %%rbx, %%rax" : "=a"(value) : "b"(field) : "cc"); return value; } GUEST_CODE static inline void nested_vmptrld(uint64_t cpu_id, uint64_t vm_id) { uint64_t vmcs_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint8_t error = 0; asm volatile("vmptrld %1; setna %0" : "=q"(error) : "m"(vmcs_addr) : "memory", "cc"); if (error) guest_uexit(0xE2BAD2); } GUEST_CODE static noinline void vmcb_write16(uint64_t vmcb, uint16_t offset, uint16_t val) { *((volatile uint16_t*)(vmcb + offset)) = val; } GUEST_CODE static noinline void vmcb_write32(uint64_t vmcb, uint16_t offset, uint32_t val) { *((volatile uint32_t*)(vmcb + offset)) = val; } GUEST_CODE static noinline uint32_t vmcb_read32(uint64_t vmcb, uint16_t offset) { return *((volatile uint32_t*)(vmcb + offset)); } GUEST_CODE static noinline void vmcb_write64(uint64_t vmcb, uint16_t offset, uint64_t val) { *((volatile uint64_t*)(vmcb + offset)) = val; } GUEST_CODE static noinline uint64_t vmcb_read64(volatile uint8_t* vmcb, uint16_t offset) { return *((volatile uint64_t*)(vmcb + offset)); } GUEST_CODE static void guest_memset(void* s, uint8_t c, int size) { volatile uint8_t* p = (volatile uint8_t*)s; for (int i = 0; i < size; i++) p[i] = c; } GUEST_CODE static void guest_memcpy(void* dst, void* src, int size) { volatile uint8_t* d = (volatile uint8_t*)dst; volatile uint8_t* s = (volatile uint8_t*)src; for (int i = 0; i < size; i++) d[i] = s[i]; } GUEST_CODE static noinline void nested_enable_vmx_intel(uint64_t cpu_id) { uint64_t vmxon_addr = X86_SYZOS_ADDR_VM_ARCH_SPECIFIC(cpu_id); uint64_t cr4 = read_cr4(); cr4 |= X86_CR4_VMXE; write_cr4(cr4); uint64_t feature_control = rdmsr(X86_MSR_IA32_FEATURE_CONTROL); if ((feature_control & 1) == 0) { feature_control |= 0b101; asm volatile("wrmsr" : : "d"(0x0), "c"(X86_MSR_IA32_FEATURE_CONTROL), "A"(feature_control)); } *(uint32_t*)vmxon_addr = rdmsr(X86_MSR_IA32_VMX_BASIC); uint8_t error; asm volatile("vmxon %1; setna %0" : "=q"(error) : "m"(vmxon_addr) : "memory", "cc"); if (error) { guest_uexit(0xE2BAD0); return; } } GUEST_CODE static noinline void nested_enable_svm_amd(uint64_t cpu_id) { uint64_t hsave_addr = X86_SYZOS_ADDR_VM_ARCH_SPECIFIC(cpu_id); uint64_t efer = rdmsr(X86_MSR_IA32_EFER); efer |= X86_EFER_SVME; wrmsr(X86_MSR_IA32_EFER, efer); wrmsr(X86_MSR_VM_HSAVE_PA, hsave_addr); } GUEST_CODE static noinline void guest_handle_enable_nested(struct api_call_1* cmd, uint64_t cpu_id) { if (get_cpu_vendor() == CPU_VENDOR_INTEL) { nested_enable_vmx_intel(cpu_id); } else { nested_enable_svm_amd(cpu_id); } } GUEST_CODE static noinline void setup_l2_page_tables(cpu_vendor_id vendor, uint64_t cpu_id, uint64_t vm_id) { uint64_t l2_pml4_addr = X86_SYZOS_ADDR_VM_PGTABLE(cpu_id, vm_id); uint64_t l2_pdpt_addr = l2_pml4_addr + KVM_PAGE_SIZE; uint64_t l2_pd_addr = l2_pml4_addr + 2 * KVM_PAGE_SIZE; uint64_t l2_pt_addr = l2_pml4_addr + 3 * KVM_PAGE_SIZE; volatile uint64_t* pml4 = (volatile uint64_t*)l2_pml4_addr; volatile uint64_t* pdpt = (volatile uint64_t*)l2_pdpt_addr; volatile uint64_t* pd = (volatile uint64_t*)l2_pd_addr; volatile uint64_t* pt = (volatile uint64_t*)l2_pt_addr; guest_memset((void*)l2_pml4_addr, 0, KVM_PAGE_SIZE); guest_memset((void*)l2_pdpt_addr, 0, KVM_PAGE_SIZE); guest_memset((void*)l2_pd_addr, 0, KVM_PAGE_SIZE); guest_memset((void*)l2_pt_addr, 0, KVM_PAGE_SIZE); guest_memset((void*)X86_SYZOS_ADDR_MSR_BITMAP(cpu_id, vm_id), 0, KVM_PAGE_SIZE); uint64_t flags = X86_PDE64_PRESENT | X86_PDE64_RW | X86_PDE64_USER; pml4[0] = l2_pdpt_addr | flags; pdpt[0] = l2_pd_addr | flags; pd[0] = l2_pt_addr | flags; uint64_t pt_flags = flags; if (vendor == CPU_VENDOR_INTEL) { pt_flags |= EPT_MEMTYPE_WB | EPT_ACCESSED | EPT_DIRTY; } else { pt_flags |= X86_PDE64_ACCESSED | X86_PDE64_DIRTY; } for (int i = 0; i < 512; i++) pt[i] = (i * KVM_PAGE_SIZE) | pt_flags; } GUEST_CODE static noinline void init_vmcs_control_fields(uint64_t cpu_id, uint64_t vm_id) { uint64_t vmx_msr = rdmsr(X86_MSR_IA32_VMX_TRUE_PINBASED_CTLS); vmwrite(VMCS_PIN_BASED_VM_EXEC_CONTROL, (uint32_t)vmx_msr); vmx_msr = (uint32_t)rdmsr(X86_MSR_IA32_VMX_PROCBASED_CTLS2); vmx_msr |= SECONDARY_EXEC_ENABLE_EPT | SECONDARY_EXEC_ENABLE_RDTSCP; vmwrite(VMCS_SECONDARY_VM_EXEC_CONTROL, vmx_msr); vmx_msr = rdmsr(X86_MSR_IA32_VMX_TRUE_PROCBASED_CTLS); vmx_msr |= CPU_BASED_ACTIVATE_SECONDARY_CONTROLS; vmx_msr |= CPU_BASED_HLT_EXITING | CPU_BASED_RDTSC_EXITING; vmwrite(VMCS_CPU_BASED_VM_EXEC_CONTROL, (uint32_t)vmx_msr); vmx_msr = rdmsr(X86_MSR_IA32_VMX_TRUE_EXIT_CTLS); vmwrite(VMCS_VM_EXIT_CONTROLS, (uint32_t)vmx_msr | VM_EXIT_HOST_ADDR_SPACE_SIZE); vmx_msr = rdmsr(X86_MSR_IA32_VMX_TRUE_ENTRY_CTLS); vmwrite(VMCS_VM_ENTRY_CONTROLS, (uint32_t)vmx_msr | VM_ENTRY_IA32E_MODE); uint64_t eptp = (X86_SYZOS_ADDR_VM_PGTABLE(cpu_id, vm_id) & ~0xFFF) | (6 << 0) | (3 << 3); vmwrite(VMCS_EPT_POINTER, eptp); vmwrite(VMCS_CR0_GUEST_HOST_MASK, 0); vmwrite(VMCS_CR4_GUEST_HOST_MASK, 0); vmwrite(VMCS_CR0_READ_SHADOW, read_cr0()); vmwrite(VMCS_CR4_READ_SHADOW, read_cr4()); vmwrite(VMCS_MSR_BITMAP, 0); vmwrite(VMCS_VMREAD_BITMAP, 0); vmwrite(VMCS_VMWRITE_BITMAP, 0); vmwrite(VMCS_EXCEPTION_BITMAP, (1 << 6)); vmwrite(VMCS_VIRTUAL_PROCESSOR_ID, 0); vmwrite(VMCS_POSTED_INTR_NV, 0); vmwrite(VMCS_PAGE_FAULT_ERROR_CODE_MASK, 0); vmwrite(VMCS_PAGE_FAULT_ERROR_CODE_MATCH, -1); vmwrite(VMCS_CR3_TARGET_COUNT, 0); vmwrite(VMCS_VM_EXIT_MSR_STORE_COUNT, 0); vmwrite(VMCS_VM_EXIT_MSR_LOAD_COUNT, 0); vmwrite(VMCS_VM_ENTRY_MSR_LOAD_COUNT, 0); vmwrite(VMCS_VM_ENTRY_INTR_INFO_FIELD, 0); vmwrite(VMCS_TPR_THRESHOLD, 0); } typedef enum { SYZOS_NESTED_EXIT_REASON_HLT = 1, SYZOS_NESTED_EXIT_REASON_INVD = 2, SYZOS_NESTED_EXIT_REASON_CPUID = 3, SYZOS_NESTED_EXIT_REASON_RDTSC = 4, SYZOS_NESTED_EXIT_REASON_RDTSCP = 5, SYZOS_NESTED_EXIT_REASON_UNKNOWN = 0xFF, } syz_nested_exit_reason; GUEST_CODE static void guest_uexit_l2(uint64_t exit_reason, syz_nested_exit_reason mapped_reason, cpu_vendor_id vendor) { if (mapped_reason != SYZOS_NESTED_EXIT_REASON_UNKNOWN) { guest_uexit(0xe2e20000 | mapped_reason); } else if (vendor == CPU_VENDOR_INTEL) { guest_uexit(0xe2110000 | exit_reason); } else { guest_uexit(0xe2aa0000 | exit_reason); } } #define EXIT_REASON_CPUID 0xa #define EXIT_REASON_HLT 0xc #define EXIT_REASON_INVD 0xd #define EXIT_REASON_RDTSC 0x10 #define EXIT_REASON_RDTSCP 0x33 GUEST_CODE static syz_nested_exit_reason map_intel_exit_reason(uint64_t basic_reason) { volatile uint64_t reason = basic_reason; if (reason == EXIT_REASON_HLT) return SYZOS_NESTED_EXIT_REASON_HLT; if (reason == EXIT_REASON_INVD) return SYZOS_NESTED_EXIT_REASON_INVD; if (reason == EXIT_REASON_CPUID) return SYZOS_NESTED_EXIT_REASON_CPUID; if (reason == EXIT_REASON_RDTSC) return SYZOS_NESTED_EXIT_REASON_RDTSC; if (reason == EXIT_REASON_RDTSCP) return SYZOS_NESTED_EXIT_REASON_RDTSCP; return SYZOS_NESTED_EXIT_REASON_UNKNOWN; } GUEST_CODE static void advance_l2_rip_intel(uint64_t basic_reason) { volatile uint64_t reason = basic_reason; uint64_t rip = vmread(VMCS_GUEST_RIP); if ((reason == EXIT_REASON_INVD) || (reason == EXIT_REASON_CPUID) || (reason == EXIT_REASON_RDTSC)) { rip += 2; } else if (reason == EXIT_REASON_RDTSCP) { rip += 3; } vmwrite(VMCS_GUEST_RIP, rip); } __attribute__((used)) GUEST_CODE static void nested_vm_exit_handler_intel(uint64_t exit_reason, struct l2_guest_regs* regs) { uint64_t basic_reason = exit_reason & 0xFFFF; syz_nested_exit_reason mapped_reason = map_intel_exit_reason(basic_reason); guest_uexit_l2(exit_reason, mapped_reason, CPU_VENDOR_INTEL); advance_l2_rip_intel(basic_reason); } extern char after_vmentry_label; __attribute__((naked)) GUEST_CODE static void nested_vm_exit_handler_intel_asm(void) { asm volatile(R"( push %%rax push %%rbx push %%rcx push %%rdx push %%rsi push %%rdi push %%rbp push %%r8 push %%r9 push %%r10 push %%r11 push %%r12 push %%r13 push %%r14 push %%r15 mov %%rsp, %%rsi mov %[vm_exit_reason], %%rbx vmread %%rbx, %%rdi call nested_vm_exit_handler_intel add %[stack_cleanup_size], %%rsp jmp after_vmentry_label )" : : [stack_cleanup_size] "i"(sizeof(struct l2_guest_regs)), [vm_exit_reason] "i"(VMCS_VM_EXIT_REASON) : "memory", "cc", "rbx", "rdi", "rsi"); } #define VMEXIT_RDTSC 0x6e #define VMEXIT_CPUID 0x72 #define VMEXIT_INVD 0x76 #define VMEXIT_HLT 0x78 #define VMEXIT_RDTSCP 0x87 GUEST_CODE static syz_nested_exit_reason map_amd_exit_reason(uint64_t basic_reason) { volatile uint64_t reason = basic_reason; if (reason == VMEXIT_HLT) return SYZOS_NESTED_EXIT_REASON_HLT; if (reason == VMEXIT_INVD) return SYZOS_NESTED_EXIT_REASON_INVD; if (reason == VMEXIT_CPUID) return SYZOS_NESTED_EXIT_REASON_CPUID; if (reason == VMEXIT_RDTSC) return SYZOS_NESTED_EXIT_REASON_RDTSC; if (reason == VMEXIT_RDTSCP) return SYZOS_NESTED_EXIT_REASON_RDTSCP; return SYZOS_NESTED_EXIT_REASON_UNKNOWN; } GUEST_CODE static void advance_l2_rip_amd(uint64_t basic_reason, uint64_t cpu_id, uint64_t vm_id) { volatile uint64_t reason = basic_reason; uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint64_t rip = vmcb_read64((volatile uint8_t*)vmcb_addr, VMCB_GUEST_RIP); if ((reason == VMEXIT_INVD) || (reason == VMEXIT_CPUID) || (reason == VMEXIT_RDTSC)) { rip += 2; } else if (reason == VMEXIT_RDTSCP) { rip += 3; } vmcb_write64(vmcb_addr, VMCB_GUEST_RIP, rip); } __attribute__((used)) GUEST_CODE static void nested_vm_exit_handler_amd(uint64_t exit_reason, uint64_t cpu_id, uint64_t vm_id) { volatile uint64_t basic_reason = exit_reason & 0xFFFF; syz_nested_exit_reason mapped_reason = map_amd_exit_reason(basic_reason); guest_uexit_l2(exit_reason, mapped_reason, CPU_VENDOR_AMD); advance_l2_rip_amd(basic_reason, cpu_id, vm_id); } GUEST_CODE static noinline void init_vmcs_host_state(void) { vmwrite(VMCS_HOST_CS_SELECTOR, X86_SYZOS_SEL_CODE); vmwrite(VMCS_HOST_DS_SELECTOR, X86_SYZOS_SEL_DATA); vmwrite(VMCS_HOST_ES_SELECTOR, X86_SYZOS_SEL_DATA); vmwrite(VMCS_HOST_SS_SELECTOR, X86_SYZOS_SEL_DATA); vmwrite(VMCS_HOST_FS_SELECTOR, X86_SYZOS_SEL_DATA); vmwrite(VMCS_HOST_GS_SELECTOR, X86_SYZOS_SEL_DATA); vmwrite(VMCS_HOST_TR_SELECTOR, X86_SYZOS_SEL_TSS64); vmwrite(VMCS_HOST_TR_BASE, 0); vmwrite(VMCS_HOST_GDTR_BASE, X86_SYZOS_ADDR_GDT); vmwrite(VMCS_HOST_IDTR_BASE, X86_SYZOS_ADDR_VAR_IDT); vmwrite(VMCS_HOST_FS_BASE, rdmsr(X86_MSR_FS_BASE)); vmwrite(VMCS_HOST_GS_BASE, rdmsr(X86_MSR_GS_BASE)); uint64_t tmpreg = 0; asm volatile("mov %%rsp, %0" : "=r"(tmpreg)); vmwrite(VMCS_HOST_RSP, tmpreg); vmwrite(VMCS_HOST_RIP, (uintptr_t)nested_vm_exit_handler_intel_asm); vmwrite(VMCS_HOST_CR0, read_cr0()); vmwrite(VMCS_HOST_CR3, read_cr3()); vmwrite(VMCS_HOST_CR4, read_cr4()); vmwrite(VMCS_HOST_IA32_PAT, rdmsr(X86_MSR_IA32_CR_PAT)); vmwrite(VMCS_HOST_IA32_EFER, rdmsr(X86_MSR_IA32_EFER)); vmwrite(VMCS_HOST_IA32_PERF_GLOBAL_CTRL, rdmsr(X86_MSR_CORE_PERF_GLOBAL_CTRL)); vmwrite(VMCS_HOST_IA32_SYSENTER_CS, rdmsr(X86_MSR_IA32_SYSENTER_CS)); vmwrite(VMCS_HOST_IA32_SYSENTER_ESP, rdmsr(X86_MSR_IA32_SYSENTER_ESP)); vmwrite(VMCS_HOST_IA32_SYSENTER_EIP, rdmsr(X86_MSR_IA32_SYSENTER_EIP)); } #define COPY_VMCS_FIELD(GUEST_FIELD,HOST_FIELD) vmwrite(GUEST_FIELD, vmread(HOST_FIELD)) #define SETUP_L2_SEGMENT(SEG,SELECTOR,BASE,LIMIT,AR) vmwrite(VMCS_GUEST_ ##SEG ##_SELECTOR, SELECTOR); vmwrite(VMCS_GUEST_ ##SEG ##_BASE, BASE); vmwrite(VMCS_GUEST_ ##SEG ##_LIMIT, LIMIT); vmwrite(VMCS_GUEST_ ##SEG ##_ACCESS_RIGHTS, AR); GUEST_CODE static noinline void init_vmcs_guest_state(uint64_t cpu_id, uint64_t vm_id) { uint64_t l2_code_addr = X86_SYZOS_ADDR_VM_CODE(cpu_id, vm_id); uint64_t l2_stack_addr = X86_SYZOS_ADDR_VM_STACK(cpu_id, vm_id); SETUP_L2_SEGMENT(CS, vmread(VMCS_HOST_CS_SELECTOR), 0, 0xFFFFFFFF, VMX_AR_64BIT_CODE); SETUP_L2_SEGMENT(DS, vmread(VMCS_HOST_DS_SELECTOR), 0, 0xFFFFFFFF, VMX_AR_64BIT_DATA_STACK); SETUP_L2_SEGMENT(ES, vmread(VMCS_HOST_ES_SELECTOR), 0, 0xFFFFFFFF, VMX_AR_64BIT_DATA_STACK); SETUP_L2_SEGMENT(SS, vmread(VMCS_HOST_SS_SELECTOR), 0, 0xFFFFFFFF, VMX_AR_64BIT_DATA_STACK); SETUP_L2_SEGMENT(FS, vmread(VMCS_HOST_FS_SELECTOR), vmread(VMCS_HOST_FS_BASE), 0xFFFFFFFF, VMX_AR_64BIT_DATA_STACK); SETUP_L2_SEGMENT(GS, vmread(VMCS_HOST_GS_SELECTOR), vmread(VMCS_HOST_GS_BASE), 0xFFFFFFFF, VMX_AR_64BIT_DATA_STACK); SETUP_L2_SEGMENT(TR, vmread(VMCS_HOST_TR_SELECTOR), vmread(VMCS_HOST_TR_BASE), 0x67, VMX_AR_TSS_BUSY); SETUP_L2_SEGMENT(LDTR, 0, 0, 0, VMX_AR_LDTR_UNUSABLE); vmwrite(VMCS_GUEST_CR0, vmread(VMCS_HOST_CR0)); vmwrite(VMCS_GUEST_CR3, vmread(VMCS_HOST_CR3)); vmwrite(VMCS_GUEST_CR4, vmread(VMCS_HOST_CR4)); vmwrite(VMCS_GUEST_RIP, l2_code_addr); vmwrite(VMCS_GUEST_RSP, l2_stack_addr + KVM_PAGE_SIZE - 8); vmwrite(VMCS_GUEST_RFLAGS, RFLAGS_1_BIT); vmwrite(VMCS_GUEST_DR7, 0x400); COPY_VMCS_FIELD(VMCS_GUEST_IA32_EFER, VMCS_HOST_IA32_EFER); COPY_VMCS_FIELD(VMCS_GUEST_IA32_PAT, VMCS_HOST_IA32_PAT); COPY_VMCS_FIELD(VMCS_GUEST_IA32_PERF_GLOBAL_CTRL, VMCS_HOST_IA32_PERF_GLOBAL_CTRL); COPY_VMCS_FIELD(VMCS_GUEST_SYSENTER_CS, VMCS_HOST_IA32_SYSENTER_CS); COPY_VMCS_FIELD(VMCS_GUEST_SYSENTER_ESP, VMCS_HOST_IA32_SYSENTER_ESP); COPY_VMCS_FIELD(VMCS_GUEST_SYSENTER_EIP, VMCS_HOST_IA32_SYSENTER_EIP); vmwrite(VMCS_GUEST_IA32_DEBUGCTL, 0); vmwrite(VMCS_GUEST_GDTR_BASE, vmread(VMCS_HOST_GDTR_BASE)); vmwrite(VMCS_GUEST_GDTR_LIMIT, 0xffff); vmwrite(VMCS_GUEST_IDTR_BASE, vmread(VMCS_HOST_IDTR_BASE)); vmwrite(VMCS_GUEST_IDTR_LIMIT, 0xffff); vmwrite(VMCS_LINK_POINTER, 0xffffffffffffffff); vmwrite(VMCS_GUEST_ACTIVITY_STATE, 0); vmwrite(VMCS_GUEST_INTERRUPTIBILITY_INFO, 0); vmwrite(VMCS_GUEST_PENDING_DBG_EXCEPTIONS, 0); vmwrite(VMCS_VMX_PREEMPTION_TIMER_VALUE, 0); vmwrite(VMCS_GUEST_INTR_STATUS, 0); vmwrite(VMCS_GUEST_PML_INDEX, 0); } GUEST_CODE static noinline void nested_create_vm_intel(struct api_call_1* cmd, uint64_t cpu_id) { uint64_t vm_id = cmd->arg; uint64_t vmcs_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint8_t error = 0; *(uint32_t*)vmcs_addr = rdmsr(X86_MSR_IA32_VMX_BASIC); asm volatile("vmclear %1; setna %0" : "=q"(error) : "m"(vmcs_addr) : "memory", "cc"); if (error) { guest_uexit(0xE2BAD1); return; } nested_vmptrld(cpu_id, vm_id); setup_l2_page_tables(CPU_VENDOR_INTEL, cpu_id, vm_id); init_vmcs_control_fields(cpu_id, vm_id); init_vmcs_host_state(); init_vmcs_guest_state(cpu_id, vm_id); } #define SETUP_L2_SEGMENT_SVM(VMBC_PTR,SEG_NAME,SELECTOR,BASE,LIMIT,ATTR) vmcb_write16(VMBC_PTR, VMCB_GUEST_ ##SEG_NAME ##_SEL, SELECTOR); vmcb_write16(VMBC_PTR, VMCB_GUEST_ ##SEG_NAME ##_ATTR, ATTR); vmcb_write32(VMBC_PTR, VMCB_GUEST_ ##SEG_NAME ##_LIM, LIMIT); vmcb_write64(VMBC_PTR, VMCB_GUEST_ ##SEG_NAME ##_BASE, BASE); GUEST_CODE static noinline void init_vmcb_guest_state(uint64_t cpu_id, uint64_t vm_id) { uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint64_t l2_code_addr = X86_SYZOS_ADDR_VM_CODE(cpu_id, vm_id); uint64_t l2_stack_addr = X86_SYZOS_ADDR_VM_STACK(cpu_id, vm_id); uint64_t npt_pml4_addr = X86_SYZOS_ADDR_VM_PGTABLE(cpu_id, vm_id); SETUP_L2_SEGMENT_SVM(vmcb_addr, CS, X86_SYZOS_SEL_CODE, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_CODE); SETUP_L2_SEGMENT_SVM(vmcb_addr, DS, X86_SYZOS_SEL_DATA, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_DATA); SETUP_L2_SEGMENT_SVM(vmcb_addr, ES, X86_SYZOS_SEL_DATA, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_DATA); SETUP_L2_SEGMENT_SVM(vmcb_addr, SS, X86_SYZOS_SEL_DATA, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_DATA); SETUP_L2_SEGMENT_SVM(vmcb_addr, FS, X86_SYZOS_SEL_DATA, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_DATA); SETUP_L2_SEGMENT_SVM(vmcb_addr, GS, X86_SYZOS_SEL_DATA, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_DATA); SETUP_L2_SEGMENT_SVM(vmcb_addr, TR, X86_SYZOS_SEL_TSS64, X86_SYZOS_ADDR_VAR_TSS, 0x67, VMX_AR_TSS_AVAILABLE); SETUP_L2_SEGMENT_SVM(vmcb_addr, LDTR, 0, 0, 0, SVM_ATTR_LDTR_UNUSABLE); uint64_t efer = rdmsr(X86_MSR_IA32_EFER); vmcb_write64(vmcb_addr, VMCB_GUEST_CR0, read_cr0() | X86_CR0_WP); vmcb_write64(vmcb_addr, VMCB_GUEST_CR3, read_cr3()); vmcb_write64(vmcb_addr, VMCB_GUEST_CR4, read_cr4()); vmcb_write64(vmcb_addr, VMCB_GUEST_RIP, l2_code_addr); vmcb_write64(vmcb_addr, VMCB_GUEST_RSP, l2_stack_addr + KVM_PAGE_SIZE - 8); vmcb_write64(vmcb_addr, VMCB_GUEST_RFLAGS, RFLAGS_1_BIT); vmcb_write64(vmcb_addr, VMCB_GUEST_DEBUGCTL, 0); vmcb_write64(vmcb_addr, VMCB_GUEST_DR6, 0x0); vmcb_write64(vmcb_addr, VMCB_GUEST_DR7, 0x0); vmcb_write64(vmcb_addr, VMCB_GUEST_EFER, efer & ~X86_EFER_SCE); vmcb_write64(vmcb_addr, VMCB_GUEST_PAT, rdmsr(X86_MSR_IA32_CR_PAT)); struct { uint16_t limit; uint64_t base; } __attribute__((packed)) gdtr, idtr; asm volatile("sgdt %0" : "=m"(gdtr)); asm volatile("sidt %0" : "=m"(idtr)); vmcb_write64(vmcb_addr, VMCB_GUEST_GDTR_BASE, gdtr.base); vmcb_write32(vmcb_addr, VMCB_GUEST_GDTR_LIM, gdtr.limit); vmcb_write64(vmcb_addr, VMCB_GUEST_IDTR_BASE, idtr.base); vmcb_write32(vmcb_addr, VMCB_GUEST_IDTR_LIM, idtr.limit); vmcb_write32(vmcb_addr, VMCB_CTRL_INTERCEPT_VEC3, VMCB_CTRL_INTERCEPT_VEC3_ALL); vmcb_write32(vmcb_addr, VMCB_CTRL_INTERCEPT_VEC4, VMCB_CTRL_INTERCEPT_VEC4_ALL); vmcb_write64(vmcb_addr, VMCB_CTRL_NP_ENABLE, (1 << VMCB_CTRL_NPT_ENABLE_BIT)); uint64_t npt_pointer = (npt_pml4_addr & ~0xFFF); vmcb_write64(vmcb_addr, VMCB_CTRL_N_CR3, npt_pointer); vmcb_write32(vmcb_addr, VMCB_CTRL_ASID, 1); } GUEST_CODE static noinline void nested_create_vm_amd(struct api_call_1* cmd, uint64_t cpu_id) { uint64_t vm_id = cmd->arg; uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); guest_memset((void*)vmcb_addr, 0, KVM_PAGE_SIZE); guest_memset((void*)X86_SYZOS_ADDR_VM_ARCH_SPECIFIC(cpu_id), 0, KVM_PAGE_SIZE); setup_l2_page_tables(CPU_VENDOR_AMD, cpu_id, vm_id); init_vmcb_guest_state(cpu_id, vm_id); } GUEST_CODE static noinline void guest_handle_nested_create_vm(struct api_call_1* cmd, uint64_t cpu_id) { if (get_cpu_vendor() == CPU_VENDOR_INTEL) { nested_create_vm_intel(cmd, cpu_id); } else { nested_create_vm_amd(cmd, cpu_id); } } GUEST_CODE static noinline void guest_handle_nested_load_code(struct api_call_nested_load_code* cmd, uint64_t cpu_id) { uint64_t vm_id = cmd->vm_id; uint64_t l2_code_addr = X86_SYZOS_ADDR_VM_CODE(cpu_id, vm_id); uint64_t l2_stack_addr = X86_SYZOS_ADDR_VM_STACK(cpu_id, vm_id); uint64_t l2_code_size = cmd->header.size - sizeof(struct api_call_header) - sizeof(uint64_t); if (l2_code_size > KVM_PAGE_SIZE) l2_code_size = KVM_PAGE_SIZE; guest_memcpy((void*)l2_code_addr, (void*)cmd->insns, l2_code_size); if (get_cpu_vendor() == CPU_VENDOR_INTEL) { nested_vmptrld(cpu_id, vm_id); vmwrite(VMCS_GUEST_RIP, l2_code_addr); vmwrite(VMCS_GUEST_RSP, l2_stack_addr + KVM_PAGE_SIZE - 8); } else { vmcb_write64(X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id), VMCB_GUEST_RIP, l2_code_addr); vmcb_write64(X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id), VMCB_GUEST_RSP, l2_stack_addr + KVM_PAGE_SIZE - 8); } } GUEST_CODE static noinline __optnone void guest_handle_nested_vmentry_intel(uint64_t vm_id, uint64_t cpu_id, bool is_launch) { uint64_t vmx_error_code = 0; uint8_t fail_flag = 0; nested_vmptrld(cpu_id, vm_id); if (is_launch) { asm volatile(R"( vmlaunch setc %%al setz %%bl or %%bl, %%al)" : "=a"(fail_flag) : : "rbx", "cc", "memory"); } else { asm volatile(R"( vmresume setc %%al setz %%bl or %%bl, %%al)" : "=a"(fail_flag) : : "rbx", "cc", "memory"); } asm volatile(".globl after_vmentry_label\nafter_vmentry_label:"); if (fail_flag) { vmx_error_code = vmread(VMCS_VM_INSTRUCTION_ERROR); guest_uexit(0xE2E10000 | (uint32_t)vmx_error_code); return; } } GUEST_CODE static noinline void guest_run_amd_vm(uint64_t cpu_id, uint64_t vm_id) { uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); volatile uint8_t* vmcb_ptr = (volatile uint8_t*)vmcb_addr; uint8_t fail_flag = 0; asm volatile( "mov %1, %%rax\n\t" "vmrun\n\t" "setc %0\n\t" : "=q"(fail_flag) : "m"(vmcb_addr) : "rax", "cc", "memory"); if (fail_flag) { guest_uexit(0xE2E10000 | 0xFFFF); return; } uint64_t exit_reason = vmcb_read64(vmcb_ptr, VMCB_EXIT_CODE); nested_vm_exit_handler_amd(exit_reason, cpu_id, vm_id); } GUEST_CODE static noinline void guest_handle_nested_vmlaunch(struct api_call_1* cmd, uint64_t cpu_id) { uint64_t vm_id = cmd->arg; if (get_cpu_vendor() == CPU_VENDOR_INTEL) { guest_handle_nested_vmentry_intel(vm_id, cpu_id, true); } else { guest_run_amd_vm(cpu_id, vm_id); } } GUEST_CODE static noinline void guest_handle_nested_vmresume(struct api_call_1* cmd, uint64_t cpu_id) { uint64_t vm_id = cmd->arg; if (get_cpu_vendor() == CPU_VENDOR_INTEL) { guest_handle_nested_vmentry_intel(vm_id, cpu_id, false); } else { guest_run_amd_vm(cpu_id, vm_id); } } GUEST_CODE static noinline void guest_handle_nested_intel_vmwrite_mask(struct api_call_5* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_INTEL) return; uint64_t vm_id = cmd->args[0]; nested_vmptrld(cpu_id, vm_id); uint64_t field = cmd->args[1]; uint64_t set_mask = cmd->args[2]; uint64_t unset_mask = cmd->args[3]; uint64_t flip_mask = cmd->args[4]; uint64_t current_value = vmread(field); uint64_t new_value = (current_value & ~unset_mask) | set_mask; new_value ^= flip_mask; vmwrite(field, new_value); } GUEST_CODE static noinline void guest_handle_nested_amd_vmcb_write_mask(struct api_call_5* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t vm_id = cmd->args[0]; uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint64_t offset = cmd->args[1]; uint64_t set_mask = cmd->args[2]; uint64_t unset_mask = cmd->args[3]; uint64_t flip_mask = cmd->args[4]; uint64_t current_value = vmcb_read64((volatile uint8_t*)vmcb_addr, offset); uint64_t new_value = (current_value & ~unset_mask) | set_mask; new_value ^= flip_mask; vmcb_write64(vmcb_addr, offset, new_value); } GUEST_CODE static noinline void guest_handle_nested_amd_invlpga(struct api_call_2* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t linear_addr = cmd->args[0]; uint32_t asid = (uint32_t)cmd->args[1]; asm volatile("invlpga" : : "a"(linear_addr), "c"(asid) : "memory"); } GUEST_CODE static noinline void guest_handle_nested_amd_stgi() { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; asm volatile("stgi" ::: "memory"); } GUEST_CODE static noinline void guest_handle_nested_amd_clgi() { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; asm volatile("clgi" ::: "memory"); } GUEST_CODE static noinline void guest_handle_nested_amd_inject_event(struct api_call_5* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t vm_id = cmd->args[0]; uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint64_t vector = cmd->args[1] & 0xFF; uint64_t type = cmd->args[2] & 0x7; uint64_t error_code = cmd->args[3] & 0xFFFFFFFF; uint64_t flags = cmd->args[4]; uint64_t event_inj = vector; event_inj |= (type << 8); if (flags & 2) event_inj |= (1ULL << 11); if (flags & 1) event_inj |= (1ULL << 31); event_inj |= (error_code << 32); vmcb_write64(vmcb_addr, 0x60, event_inj); } GUEST_CODE static noinline void guest_handle_nested_amd_set_intercept(struct api_call_5* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t vm_id = cmd->args[0]; uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint64_t offset = cmd->args[1]; uint64_t bit_mask = cmd->args[2]; uint64_t action = cmd->args[3]; uint32_t current = vmcb_read32(vmcb_addr, (uint16_t)offset); if (action == 1) current |= (uint32_t)bit_mask; else current &= ~((uint32_t)bit_mask); vmcb_write32(vmcb_addr, (uint16_t)offset, current); } GUEST_CODE static noinline void guest_handle_nested_amd_vmload(struct api_call_1* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t vm_id = cmd->arg; uint64_t vmcb_pa = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); asm volatile("vmload %%rax" ::"a"(vmcb_pa) : "memory"); } GUEST_CODE static noinline void guest_handle_nested_amd_vmsave(struct api_call_1* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t vm_id = cmd->arg; uint64_t vmcb_pa = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); asm volatile("vmsave %%rax" ::"a"(vmcb_pa) : "memory"); } const char kvm_asm16_cpl3[] = "\x0f\x20\xc0\x66\x83\xc8\x01\x0f\x22\xc0\xb8\xa0\x00\x0f\x00\xd8\xb8\x2b\x00\x8e\xd8\x8e\xc0\x8e\xe0\x8e\xe8\xbc\x00\x01\xc7\x06\x00\x01\x1d\xba\xc7\x06\x02\x01\x23\x00\xc7\x06\x04\x01\x00\x01\xc7\x06\x06\x01\x2b\x00\xcb"; const char kvm_asm32_paged[] = "\x0f\x20\xc0\x0d\x00\x00\x00\x80\x0f\x22\xc0"; const char kvm_asm32_vm86[] = "\x66\xb8\xb8\x00\x0f\x00\xd8\xea\x00\x00\x00\x00\xd0\x00"; const char kvm_asm32_paged_vm86[] = "\x0f\x20\xc0\x0d\x00\x00\x00\x80\x0f\x22\xc0\x66\xb8\xb8\x00\x0f\x00\xd8\xea\x00\x00\x00\x00\xd0\x00"; const char kvm_asm64_enable_long[] = "\x0f\x20\xc0\x0d\x00\x00\x00\x80\x0f\x22\xc0\xea\xde\xc0\xad\x0b\x50\x00\x48\xc7\xc0\xd8\x00\x00\x00\x0f\x00\xd8"; const char kvm_asm64_init_vm[] = 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const char kvm_asm64_vm_exit[] = "\x48\xc7\xc3\x00\x44\x00\x00\x0f\x78\xda\x48\xc7\xc3\x02\x44\x00\x00\x0f\x78\xd9\x48\xc7\xc0\x00\x64\x00\x00\x0f\x78\xc0\x48\xc7\xc3\x1e\x68\x00\x00\x0f\x78\xdb\xf4"; const char kvm_asm64_cpl3[] = "\x0f\x20\xc0\x0d\x00\x00\x00\x80\x0f\x22\xc0\xea\xde\xc0\xad\x0b\x50\x00\x48\xc7\xc0\xd8\x00\x00\x00\x0f\x00\xd8\x48\xc7\xc0\x6b\x00\x00\x00\x8e\xd8\x8e\xc0\x8e\xe0\x8e\xe8\x48\xc7\xc4\x80\x0f\x00\x00\x48\xc7\x04\x24\x1d\xba\x00\x00\x48\xc7\x44\x24\x04\x63\x00\x00\x00\x48\xc7\x44\x24\x08\x80\x0f\x00\x00\x48\xc7\x44\x24\x0c\x6b\x00\x00\x00\xcb"; #define KVM_SMI _IO(KVMIO, 0xb7) struct tss16 { uint16_t prev; uint16_t sp0; uint16_t ss0; uint16_t sp1; uint16_t ss1; uint16_t sp2; uint16_t ss2; uint16_t ip; uint16_t flags; uint16_t ax; uint16_t cx; uint16_t dx; uint16_t bx; uint16_t sp; uint16_t bp; uint16_t si; uint16_t di; uint16_t es; uint16_t cs; uint16_t ss; uint16_t ds; uint16_t ldt; } __attribute__((packed)); struct tss32 { uint16_t prev, prevh; uint32_t sp0; uint16_t ss0, ss0h; uint32_t sp1; uint16_t ss1, ss1h; uint32_t sp2; uint16_t ss2, ss2h; uint32_t cr3; uint32_t ip; uint32_t flags; uint32_t ax; uint32_t cx; uint32_t dx; uint32_t bx; uint32_t sp; uint32_t bp; uint32_t si; uint32_t di; uint16_t es, esh; uint16_t cs, csh; uint16_t ss, ssh; uint16_t ds, dsh; uint16_t fs, fsh; uint16_t gs, gsh; uint16_t ldt, ldth; uint16_t trace; uint16_t io_bitmap; } __attribute__((packed)); struct tss64 { uint32_t reserved0; uint64_t rsp[3]; uint64_t reserved1; uint64_t ist[7]; uint64_t reserved2; uint16_t reserved3; uint16_t io_bitmap; } __attribute__((packed)); static void fill_segment_descriptor(uint64_t* dt, uint64_t* lt, struct kvm_segment* seg) { uint16_t index = seg->selector >> 3; uint64_t limit = seg->g ? seg->limit >> 12 : seg->limit; uint64_t sd = (limit & 0xffff) | (seg->base & 0xffffff) << 16 | (uint64_t)seg->type << 40 | (uint64_t)seg->s << 44 | (uint64_t)seg->dpl << 45 | (uint64_t)seg->present << 47 | (limit & 0xf0000ULL) << 48 | (uint64_t)seg->avl << 52 | (uint64_t)seg->l << 53 | (uint64_t)seg->db << 54 | (uint64_t)seg->g << 55 | (seg->base & 0xff000000ULL) << 56; dt[index] = sd; lt[index] = sd; } static void fill_segment_descriptor_dword(uint64_t* dt, uint64_t* lt, struct kvm_segment* seg) { fill_segment_descriptor(dt, lt, seg); uint16_t index = seg->selector >> 3; dt[index + 1] = 0; lt[index + 1] = 0; } static void setup_syscall_msrs(int cpufd, uint16_t sel_cs, uint16_t sel_cs_cpl3) { char buf[sizeof(struct kvm_msrs) + 5 * sizeof(struct kvm_msr_entry)]; memset(buf, 0, sizeof(buf)); struct kvm_msrs* msrs = (struct kvm_msrs*)buf; struct kvm_msr_entry* entries = msrs->entries; msrs->nmsrs = 5; entries[0].index = X86_MSR_IA32_SYSENTER_CS; entries[0].data = sel_cs; entries[1].index = X86_MSR_IA32_SYSENTER_ESP; entries[1].data = X86_ADDR_STACK0; entries[2].index = X86_MSR_IA32_SYSENTER_EIP; entries[2].data = X86_ADDR_VAR_SYSEXIT; entries[3].index = X86_MSR_IA32_STAR; entries[3].data = ((uint64_t)sel_cs << 32) | ((uint64_t)sel_cs_cpl3 << 48); entries[4].index = X86_MSR_IA32_LSTAR; entries[4].data = X86_ADDR_VAR_SYSRET; ioctl(cpufd, KVM_SET_MSRS, msrs); } static void setup_32bit_idt(struct kvm_sregs* sregs, char* host_mem, uintptr_t guest_mem) { sregs->idt.base = guest_mem + X86_ADDR_VAR_IDT; sregs->idt.limit = 0x1ff; uint64_t* idt = (uint64_t*)(host_mem + sregs->idt.base); for (int i = 0; i < 32; i++) { struct kvm_segment gate; gate.selector = i << 3; switch (i % 6) { case 0: gate.type = 6; gate.base = X86_SEL_CS16; break; case 1: gate.type = 7; gate.base = X86_SEL_CS16; break; case 2: gate.type = 3; gate.base = X86_SEL_TGATE16; break; case 3: gate.type = 14; gate.base = X86_SEL_CS32; break; case 4: gate.type = 15; gate.base = X86_SEL_CS32; break; case 5: gate.type = 11; gate.base = X86_SEL_TGATE32; break; } gate.limit = guest_mem + X86_ADDR_VAR_USER_CODE2; gate.present = 1; gate.dpl = 0; gate.s = 0; gate.g = 0; gate.db = 0; gate.l = 0; gate.avl = 0; fill_segment_descriptor(idt, idt, &gate); } } static void setup_64bit_idt(struct kvm_sregs* sregs, char* host_mem, uintptr_t guest_mem) { sregs->idt.base = guest_mem + X86_ADDR_VAR_IDT; sregs->idt.limit = 0x1ff; uint64_t* idt = (uint64_t*)(host_mem + sregs->idt.base); for (int i = 0; i < 32; i++) { struct kvm_segment gate; gate.selector = (i * 2) << 3; gate.type = (i & 1) ? 14 : 15; gate.base = X86_SEL_CS64; gate.limit = guest_mem + X86_ADDR_VAR_USER_CODE2; gate.present = 1; gate.dpl = 0; gate.s = 0; gate.g = 0; gate.db = 0; gate.l = 0; gate.avl = 0; fill_segment_descriptor_dword(idt, idt, &gate); } } #define MEM_REGION_FLAG_USER_CODE (1 << 0) #define MEM_REGION_FLAG_DIRTY_LOG (1 << 1) #define MEM_REGION_FLAG_READONLY (1 << 2) #define MEM_REGION_FLAG_EXECUTOR_CODE (1 << 3) #define MEM_REGION_FLAG_GPA0 (1 << 5) #define MEM_REGION_FLAG_NO_HOST_MEM (1 << 6) struct mem_region { uint64_t gpa; int pages; uint32_t flags; }; static const struct mem_region syzos_mem_regions[] = { {X86_SYZOS_ADDR_ZERO, 48, MEM_REGION_FLAG_GPA0}, {X86_SYZOS_ADDR_SMRAM, 10, 0}, {X86_SYZOS_ADDR_EXIT, 1, MEM_REGION_FLAG_NO_HOST_MEM}, {X86_SYZOS_ADDR_DIRTY_PAGES, 2, MEM_REGION_FLAG_DIRTY_LOG}, {X86_SYZOS_ADDR_USER_CODE, KVM_MAX_VCPU, MEM_REGION_FLAG_READONLY | MEM_REGION_FLAG_USER_CODE}, {SYZOS_ADDR_EXECUTOR_CODE, 4, MEM_REGION_FLAG_READONLY | MEM_REGION_FLAG_EXECUTOR_CODE}, {X86_SYZOS_ADDR_SCRATCH_CODE, 1, 0}, {X86_SYZOS_ADDR_STACK_BOTTOM, 1, 0}, {X86_SYZOS_PER_VCPU_REGIONS_BASE, (KVM_MAX_VCPU * X86_SYZOS_L1_VCPU_REGION_SIZE) / KVM_PAGE_SIZE, 0}, {X86_SYZOS_ADDR_IOAPIC, 1, 0}, }; struct kvm_syz_vm { int vmfd; int next_cpu_id; void* host_mem; size_t total_pages; void* user_text; void* gpa0_mem; }; #define X86_NUM_IDT_ENTRIES 256 static void syzos_setup_idt(struct kvm_syz_vm* vm, struct kvm_sregs* sregs) { sregs->idt.base = X86_SYZOS_ADDR_VAR_IDT; sregs->idt.limit = (X86_NUM_IDT_ENTRIES * sizeof(struct idt_entry_64)) - 1; volatile struct idt_entry_64* idt = (volatile struct idt_entry_64*)((uint64_t)vm->host_mem + sregs->idt.base); uint64_t handler_addr = executor_fn_guest_addr(dummy_null_handler); for (int i = 0; i < X86_NUM_IDT_ENTRIES; i++) { idt[i].offset_low = (uint16_t)(handler_addr & 0xFFFF); idt[i].selector = X86_SYZOS_SEL_CODE; idt[i].ist = 0; idt[i].type_attr = 0x8E; idt[i].offset_mid = (uint16_t)((handler_addr >> 16) & 0xFFFF); idt[i].offset_high = (uint32_t)((handler_addr >> 32) & 0xFFFFFFFF); idt[i].reserved = 0; } } struct kvm_text { uintptr_t typ; const void* text; uintptr_t size; }; struct kvm_opt { uint64_t typ; uint64_t val; }; #define PAGE_MASK GENMASK_ULL(51, 12) typedef struct { uint64_t next_page; uint64_t last_page; } page_alloc_t; static uint64_t pg_alloc(page_alloc_t* alloc) { if (alloc->next_page >= alloc->last_page) exit(1); uint64_t page = alloc->next_page; alloc->next_page += KVM_PAGE_SIZE; return page; } static void map_4k_page(uint64_t host_mem, page_alloc_t* alloc, uint64_t gpa) { uint64_t* pml4 = (uint64_t*)(host_mem + X86_SYZOS_ADDR_PML4); uint64_t pml4_idx = (gpa >> 39) & 0x1FF; if (pml4[pml4_idx] == 0) pml4[pml4_idx] = X86_PDE64_PRESENT | X86_PDE64_RW | pg_alloc(alloc); uint64_t* pdpt = (uint64_t*)(host_mem + (pml4[pml4_idx] & PAGE_MASK)); uint64_t pdpt_idx = (gpa >> 30) & 0x1FF; if (pdpt[pdpt_idx] == 0) pdpt[pdpt_idx] = X86_PDE64_PRESENT | X86_PDE64_RW | pg_alloc(alloc); uint64_t* pd = (uint64_t*)(host_mem + (pdpt[pdpt_idx] & PAGE_MASK)); uint64_t pd_idx = (gpa >> 21) & 0x1FF; if (pd[pd_idx] == 0) pd[pd_idx] = X86_PDE64_PRESENT | X86_PDE64_RW | pg_alloc(alloc); uint64_t* pt = (uint64_t*)(host_mem + (pd[pd_idx] & PAGE_MASK)); uint64_t pt_idx = (gpa >> 12) & 0x1FF; pt[pt_idx] = (gpa & PAGE_MASK) | X86_PDE64_PRESENT | X86_PDE64_RW; } static int map_4k_region(uint64_t host_mem, page_alloc_t* alloc, uint64_t gpa_start, int num_pages) { for (int i = 0; i < num_pages; i++) map_4k_page(host_mem, alloc, gpa_start + (i * KVM_PAGE_SIZE)); return num_pages; } static void setup_pg_table(struct kvm_syz_vm* vm) { int total = vm->total_pages; uint64_t host_mem = (uint64_t)vm->gpa0_mem; page_alloc_t alloc = {.next_page = X86_SYZOS_ADDR_PT_POOL, .last_page = X86_SYZOS_ADDR_PT_POOL + 32 * KVM_PAGE_SIZE}; for (uint64_t i = 0; i < (alloc.last_page - alloc.next_page); i += KVM_PAGE_SIZE) memset((void*)(host_mem + alloc.next_page + i), 0, KVM_PAGE_SIZE); for (size_t i = 0; i < sizeof(syzos_mem_regions) / sizeof(syzos_mem_regions[0]); i++) total -= map_4k_region(host_mem, &alloc, syzos_mem_regions[i].gpa, syzos_mem_regions[i].pages); map_4k_region(host_mem, &alloc, X86_SYZOS_ADDR_UNUSED, total); } struct gdt_entry { uint16_t limit_low; uint16_t base_low; uint8_t base_mid; uint8_t access; uint8_t limit_high_and_flags; uint8_t base_high; } __attribute__((packed)); static void setup_gdt_64(struct gdt_entry* gdt) { gdt[0] = (struct gdt_entry){0}; gdt[X86_SYZOS_SEL_CODE >> 3] = (struct gdt_entry){ .limit_low = 0xFFFF, .base_low = 0, .base_mid = 0, .access = 0x9A, .limit_high_and_flags = 0xAF, .base_high = 0}; gdt[X86_SYZOS_SEL_DATA >> 3] = (struct gdt_entry){ .limit_low = 0xFFFF, .base_low = (uint16_t)(X86_SYZOS_ADDR_VAR_TSS & 0xFFFF), .base_mid = (uint8_t)((X86_SYZOS_ADDR_VAR_TSS >> 16) & 0xFF), .access = 0x92, .limit_high_and_flags = 0xCF, .base_high = (uint8_t)((X86_SYZOS_ADDR_VAR_TSS >> 24) & 0xFF)}; gdt[X86_SYZOS_SEL_TSS64 >> 3] = (struct gdt_entry){ .limit_low = 0x67, .base_low = 0, .base_mid = 0, .access = 0x89, .limit_high_and_flags = 0x00, .base_high = 0}; } static void setup_gdt_ldt_pg(struct kvm_syz_vm* vm, int cpufd) { struct kvm_sregs sregs; ioctl(cpufd, KVM_GET_SREGS, &sregs); sregs.gdt.base = X86_SYZOS_ADDR_GDT; sregs.gdt.limit = 5 * sizeof(struct gdt_entry) - 1; struct gdt_entry* gdt = (struct gdt_entry*)((uint64_t)vm->host_mem + sregs.gdt.base); struct kvm_segment seg_cs64; memset(&seg_cs64, 0, sizeof(seg_cs64)); seg_cs64.selector = X86_SYZOS_SEL_CODE; seg_cs64.type = 11; seg_cs64.base = 0; seg_cs64.limit = 0xFFFFFFFFu; seg_cs64.present = 1; seg_cs64.s = 1; seg_cs64.g = 1; seg_cs64.l = 1; sregs.cs = seg_cs64; struct kvm_segment seg_ds64; memset(&seg_ds64, 0, sizeof(struct kvm_segment)); seg_ds64.selector = X86_SYZOS_SEL_DATA; seg_ds64.type = 3; seg_ds64.limit = 0xFFFFFFFFu; seg_ds64.present = 1; seg_ds64.s = 1; seg_ds64.g = 1; seg_ds64.db = 1; sregs.ds = seg_ds64; sregs.es = seg_ds64; sregs.fs = seg_ds64; sregs.gs = seg_ds64; sregs.ss = seg_ds64; struct kvm_segment seg_tr; memset(&seg_tr, 0, sizeof(seg_tr)); seg_tr.selector = X86_SYZOS_SEL_TSS64; seg_tr.type = 11; seg_tr.base = X86_SYZOS_ADDR_VAR_TSS; seg_tr.limit = 0x67; seg_tr.present = 1; seg_tr.s = 0; sregs.tr = seg_tr; volatile uint8_t* l1_tss = (volatile uint8_t*)((uint64_t)vm->host_mem + X86_SYZOS_ADDR_VAR_TSS); memset((void*)l1_tss, 0, 104); *(volatile uint64_t*)(l1_tss + 4) = X86_SYZOS_ADDR_STACK0; setup_gdt_64(gdt); syzos_setup_idt(vm, &sregs); setup_pg_table(vm); sregs.cr0 = X86_CR0_PE | X86_CR0_NE | X86_CR0_PG; sregs.cr4 |= X86_CR4_PAE | X86_CR4_OSFXSR; sregs.efer |= (X86_EFER_LME | X86_EFER_LMA | X86_EFER_NXE); sregs.cr3 = X86_ADDR_PML4; ioctl(cpufd, KVM_SET_SREGS, &sregs); } static void setup_cpuid(int cpufd) { int kvmfd = open("/dev/kvm", O_RDWR); char buf[sizeof(struct kvm_cpuid2) + 128 * sizeof(struct kvm_cpuid_entry2)]; memset(buf, 0, sizeof(buf)); struct kvm_cpuid2* cpuid = (struct kvm_cpuid2*)buf; cpuid->nent = 128; ioctl(kvmfd, KVM_GET_SUPPORTED_CPUID, cpuid); ioctl(cpufd, KVM_SET_CPUID2, cpuid); close(kvmfd); } #define KVM_SETUP_PAGING (1 << 0) #define KVM_SETUP_PAE (1 << 1) #define KVM_SETUP_PROTECTED (1 << 2) #define KVM_SETUP_CPL3 (1 << 3) #define KVM_SETUP_VIRT86 (1 << 4) #define KVM_SETUP_SMM (1 << 5) #define KVM_SETUP_VM (1 << 6) static volatile long syz_kvm_setup_cpu(volatile long a0, volatile long a1, volatile long a2, volatile long a3, volatile long a4, volatile long a5, volatile long a6, volatile long a7) { const int vmfd = a0; const int cpufd = a1; char* const host_mem = (char*)a2; const struct kvm_text* const text_array_ptr = (struct kvm_text*)a3; const uintptr_t text_count = a4; const uintptr_t flags = a5; const struct kvm_opt* const opt_array_ptr = (struct kvm_opt*)a6; uintptr_t opt_count = a7; const uintptr_t page_size = 4 << 10; const uintptr_t ioapic_page = 10; const uintptr_t guest_mem_size = 24 * page_size; const uintptr_t guest_mem = 0; (void)text_count; int text_type = text_array_ptr[0].typ; const void* text = text_array_ptr[0].text; uintptr_t text_size = text_array_ptr[0].size; for (uintptr_t i = 0; i < guest_mem_size / page_size; i++) { struct kvm_userspace_memory_region memreg; memreg.slot = i; memreg.flags = 0; memreg.guest_phys_addr = guest_mem + i * page_size; if (i == ioapic_page) memreg.guest_phys_addr = 0xfec00000; memreg.memory_size = page_size; memreg.userspace_addr = (uintptr_t)host_mem + i * page_size; ioctl(vmfd, KVM_SET_USER_MEMORY_REGION, &memreg); } struct kvm_userspace_memory_region memreg; memreg.slot = 1 + (1 << 16); memreg.flags = 0; memreg.guest_phys_addr = 0x30000; memreg.memory_size = 64 << 10; memreg.userspace_addr = (uintptr_t)host_mem; ioctl(vmfd, KVM_SET_USER_MEMORY_REGION, &memreg); struct kvm_sregs sregs; if (ioctl(cpufd, KVM_GET_SREGS, &sregs)) return -1; struct kvm_regs regs; memset(®s, 0, sizeof(regs)); regs.rip = guest_mem + X86_ADDR_TEXT; regs.rsp = X86_ADDR_STACK0; sregs.gdt.base = guest_mem + X86_ADDR_GDT; sregs.gdt.limit = 256 * sizeof(uint64_t) - 1; uint64_t* gdt = (uint64_t*)(host_mem + sregs.gdt.base); struct kvm_segment seg_ldt; memset(&seg_ldt, 0, sizeof(seg_ldt)); seg_ldt.selector = X86_SEL_LDT; seg_ldt.type = 2; seg_ldt.base = guest_mem + X86_ADDR_LDT; seg_ldt.limit = 256 * sizeof(uint64_t) - 1; seg_ldt.present = 1; seg_ldt.dpl = 0; seg_ldt.s = 0; seg_ldt.g = 0; seg_ldt.db = 1; seg_ldt.l = 0; sregs.ldt = seg_ldt; uint64_t* ldt = (uint64_t*)(host_mem + sregs.ldt.base); struct kvm_segment seg_cs16; memset(&seg_cs16, 0, sizeof(seg_cs16)); seg_cs16.selector = X86_SEL_CS16; seg_cs16.type = 11; seg_cs16.base = 0; seg_cs16.limit = 0xfffff; seg_cs16.present = 1; seg_cs16.dpl = 0; seg_cs16.s = 1; seg_cs16.g = 0; seg_cs16.db = 0; seg_cs16.l = 0; struct kvm_segment seg_ds16 = seg_cs16; seg_ds16.selector = X86_SEL_DS16; seg_ds16.type = 3; struct kvm_segment seg_cs16_cpl3 = seg_cs16; seg_cs16_cpl3.selector = X86_SEL_CS16_CPL3; seg_cs16_cpl3.dpl = 3; struct kvm_segment seg_ds16_cpl3 = seg_ds16; seg_ds16_cpl3.selector = X86_SEL_DS16_CPL3; seg_ds16_cpl3.dpl = 3; struct kvm_segment seg_cs32 = seg_cs16; seg_cs32.selector = X86_SEL_CS32; seg_cs32.db = 1; struct kvm_segment seg_ds32 = seg_ds16; seg_ds32.selector = X86_SEL_DS32; seg_ds32.db = 1; struct kvm_segment seg_cs32_cpl3 = seg_cs32; seg_cs32_cpl3.selector = X86_SEL_CS32_CPL3; seg_cs32_cpl3.dpl = 3; struct kvm_segment seg_ds32_cpl3 = seg_ds32; seg_ds32_cpl3.selector = X86_SEL_DS32_CPL3; seg_ds32_cpl3.dpl = 3; struct kvm_segment seg_cs64 = seg_cs16; seg_cs64.selector = X86_SEL_CS64; seg_cs64.l = 1; struct kvm_segment seg_ds64 = seg_ds32; seg_ds64.selector = X86_SEL_DS64; struct kvm_segment seg_cs64_cpl3 = seg_cs64; seg_cs64_cpl3.selector = X86_SEL_CS64_CPL3; seg_cs64_cpl3.dpl = 3; struct kvm_segment seg_ds64_cpl3 = seg_ds64; seg_ds64_cpl3.selector = X86_SEL_DS64_CPL3; seg_ds64_cpl3.dpl = 3; struct kvm_segment seg_tss32; memset(&seg_tss32, 0, sizeof(seg_tss32)); seg_tss32.selector = X86_SEL_TSS32; seg_tss32.type = 9; seg_tss32.base = X86_ADDR_VAR_TSS32; seg_tss32.limit = 0x1ff; seg_tss32.present = 1; seg_tss32.dpl = 0; seg_tss32.s = 0; seg_tss32.g = 0; seg_tss32.db = 0; seg_tss32.l = 0; struct kvm_segment seg_tss32_2 = seg_tss32; seg_tss32_2.selector = X86_SEL_TSS32_2; seg_tss32_2.base = X86_ADDR_VAR_TSS32_2; struct kvm_segment seg_tss32_cpl3 = seg_tss32; seg_tss32_cpl3.selector = X86_SEL_TSS32_CPL3; seg_tss32_cpl3.base = X86_ADDR_VAR_TSS32_CPL3; struct kvm_segment seg_tss32_vm86 = seg_tss32; seg_tss32_vm86.selector = X86_SEL_TSS32_VM86; seg_tss32_vm86.base = X86_ADDR_VAR_TSS32_VM86; struct kvm_segment seg_tss16 = seg_tss32; seg_tss16.selector = X86_SEL_TSS16; seg_tss16.base = X86_ADDR_VAR_TSS16; seg_tss16.limit = 0xff; seg_tss16.type = 1; struct kvm_segment seg_tss16_2 = seg_tss16; seg_tss16_2.selector = X86_SEL_TSS16_2; seg_tss16_2.base = X86_ADDR_VAR_TSS16_2; seg_tss16_2.dpl = 0; struct kvm_segment seg_tss16_cpl3 = seg_tss16; seg_tss16_cpl3.selector = X86_SEL_TSS16_CPL3; seg_tss16_cpl3.base = X86_ADDR_VAR_TSS16_CPL3; seg_tss16_cpl3.dpl = 3; struct kvm_segment seg_tss64 = seg_tss32; seg_tss64.selector = X86_SEL_TSS64; seg_tss64.base = X86_ADDR_VAR_TSS64; seg_tss64.limit = 0x1ff; struct kvm_segment seg_tss64_cpl3 = seg_tss64; seg_tss64_cpl3.selector = X86_SEL_TSS64_CPL3; seg_tss64_cpl3.base = X86_ADDR_VAR_TSS64_CPL3; seg_tss64_cpl3.dpl = 3; struct kvm_segment seg_cgate16; memset(&seg_cgate16, 0, sizeof(seg_cgate16)); seg_cgate16.selector = X86_SEL_CGATE16; seg_cgate16.type = 4; seg_cgate16.base = X86_SEL_CS16 | (2 << 16); seg_cgate16.limit = X86_ADDR_VAR_USER_CODE2; seg_cgate16.present = 1; seg_cgate16.dpl = 0; seg_cgate16.s = 0; seg_cgate16.g = 0; seg_cgate16.db = 0; seg_cgate16.l = 0; seg_cgate16.avl = 0; struct kvm_segment seg_tgate16 = seg_cgate16; seg_tgate16.selector = X86_SEL_TGATE16; seg_tgate16.type = 3; seg_cgate16.base = X86_SEL_TSS16_2; seg_tgate16.limit = 0; struct kvm_segment seg_cgate32 = seg_cgate16; seg_cgate32.selector = X86_SEL_CGATE32; seg_cgate32.type = 12; seg_cgate32.base = X86_SEL_CS32 | (2 << 16); struct kvm_segment seg_tgate32 = seg_cgate32; seg_tgate32.selector = X86_SEL_TGATE32; seg_tgate32.type = 11; seg_tgate32.base = X86_SEL_TSS32_2; seg_tgate32.limit = 0; struct kvm_segment seg_cgate64 = seg_cgate16; seg_cgate64.selector = X86_SEL_CGATE64; seg_cgate64.type = 12; seg_cgate64.base = X86_SEL_CS64; int kvmfd = open("/dev/kvm", O_RDWR); char buf[sizeof(struct kvm_cpuid2) + 128 * sizeof(struct kvm_cpuid_entry2)]; memset(buf, 0, sizeof(buf)); struct kvm_cpuid2* cpuid = (struct kvm_cpuid2*)buf; cpuid->nent = 128; ioctl(kvmfd, KVM_GET_SUPPORTED_CPUID, cpuid); ioctl(cpufd, KVM_SET_CPUID2, cpuid); close(kvmfd); const char* text_prefix = 0; int text_prefix_size = 0; char* host_text = host_mem + X86_ADDR_TEXT; if (text_type == 8) { if (flags & KVM_SETUP_SMM) { if (flags & KVM_SETUP_PROTECTED) { sregs.cs = seg_cs16; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds16; sregs.cr0 |= X86_CR0_PE; } else { sregs.cs.selector = 0; sregs.cs.base = 0; } *(host_mem + X86_ADDR_TEXT) = 0xf4; host_text = host_mem + 0x8000; ioctl(cpufd, KVM_SMI, 0); } else if (flags & KVM_SETUP_VIRT86) { sregs.cs = seg_cs32; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32; sregs.cr0 |= X86_CR0_PE; sregs.efer |= X86_EFER_SCE; setup_syscall_msrs(cpufd, X86_SEL_CS32, X86_SEL_CS32_CPL3); setup_32bit_idt(&sregs, host_mem, guest_mem); if (flags & KVM_SETUP_PAGING) { uint64_t pd_addr = guest_mem + X86_ADDR_PD; uint64_t* pd = (uint64_t*)(host_mem + X86_ADDR_PD); pd[0] = X86_PDE32_PRESENT | X86_PDE32_RW | X86_PDE32_USER | X86_PDE32_PS; sregs.cr3 = pd_addr; sregs.cr4 |= X86_CR4_PSE; text_prefix = kvm_asm32_paged_vm86; text_prefix_size = sizeof(kvm_asm32_paged_vm86) - 1; } else { text_prefix = kvm_asm32_vm86; text_prefix_size = sizeof(kvm_asm32_vm86) - 1; } } else { sregs.cs.selector = 0; sregs.cs.base = 0; } } else if (text_type == 16) { if (flags & KVM_SETUP_CPL3) { sregs.cs = seg_cs16; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds16; text_prefix = kvm_asm16_cpl3; text_prefix_size = sizeof(kvm_asm16_cpl3) - 1; } else { sregs.cr0 |= X86_CR0_PE; sregs.cs = seg_cs16; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds16; } } else if (text_type == 32) { sregs.cr0 |= X86_CR0_PE; sregs.efer |= X86_EFER_SCE; setup_syscall_msrs(cpufd, X86_SEL_CS32, X86_SEL_CS32_CPL3); setup_32bit_idt(&sregs, host_mem, guest_mem); if (flags & KVM_SETUP_SMM) { sregs.cs = seg_cs32; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32; *(host_mem + X86_ADDR_TEXT) = 0xf4; host_text = host_mem + 0x8000; ioctl(cpufd, KVM_SMI, 0); } else if (flags & KVM_SETUP_PAGING) { sregs.cs = seg_cs32; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32; uint64_t pd_addr = guest_mem + X86_ADDR_PD; uint64_t* pd = (uint64_t*)(host_mem + X86_ADDR_PD); pd[0] = X86_PDE32_PRESENT | X86_PDE32_RW | X86_PDE32_USER | X86_PDE32_PS; sregs.cr3 = pd_addr; sregs.cr4 |= X86_CR4_PSE; text_prefix = kvm_asm32_paged; text_prefix_size = sizeof(kvm_asm32_paged) - 1; } else if (flags & KVM_SETUP_CPL3) { sregs.cs = seg_cs32_cpl3; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32_cpl3; } else { sregs.cs = seg_cs32; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32; } } else { sregs.efer |= X86_EFER_LME | X86_EFER_SCE; sregs.cr0 |= X86_CR0_PE; setup_syscall_msrs(cpufd, X86_SEL_CS64, X86_SEL_CS64_CPL3); setup_64bit_idt(&sregs, host_mem, guest_mem); sregs.cs = seg_cs32; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32; uint64_t pml4_addr = guest_mem + X86_ADDR_PML4; uint64_t* pml4 = (uint64_t*)(host_mem + X86_ADDR_PML4); uint64_t pdpt_addr = guest_mem + X86_ADDR_PDP; uint64_t* pdpt = (uint64_t*)(host_mem + X86_ADDR_PDP); uint64_t pd_addr = guest_mem + X86_ADDR_PD; uint64_t* pd = (uint64_t*)(host_mem + X86_ADDR_PD); pml4[0] = X86_PDE64_PRESENT | X86_PDE64_RW | X86_PDE64_USER | pdpt_addr; pdpt[0] = X86_PDE64_PRESENT | X86_PDE64_RW | X86_PDE64_USER | pd_addr; pd[0] = X86_PDE64_PRESENT | X86_PDE64_RW | X86_PDE64_USER | X86_PDE64_PS; sregs.cr3 = pml4_addr; sregs.cr4 |= X86_CR4_PAE; if (flags & KVM_SETUP_VM) { sregs.cr0 |= X86_CR0_NE; *((uint64_t*)(host_mem + X86_ADDR_VAR_VMXON_PTR)) = X86_ADDR_VAR_VMXON; *((uint64_t*)(host_mem + X86_ADDR_VAR_VMCS_PTR)) = X86_ADDR_VAR_VMCS; memcpy(host_mem + X86_ADDR_VAR_VMEXIT_CODE, kvm_asm64_vm_exit, sizeof(kvm_asm64_vm_exit) - 1); *((uint64_t*)(host_mem + X86_ADDR_VAR_VMEXIT_PTR)) = X86_ADDR_VAR_VMEXIT_CODE; text_prefix = kvm_asm64_init_vm; text_prefix_size = sizeof(kvm_asm64_init_vm) - 1; } else if (flags & KVM_SETUP_CPL3) { text_prefix = kvm_asm64_cpl3; text_prefix_size = sizeof(kvm_asm64_cpl3) - 1; } else { text_prefix = kvm_asm64_enable_long; text_prefix_size = sizeof(kvm_asm64_enable_long) - 1; } } struct tss16 tss16; memset(&tss16, 0, sizeof(tss16)); tss16.ss0 = tss16.ss1 = tss16.ss2 = X86_SEL_DS16; tss16.sp0 = tss16.sp1 = tss16.sp2 = X86_ADDR_STACK0; tss16.ip = X86_ADDR_VAR_USER_CODE2; tss16.flags = (1 << 1); tss16.cs = X86_SEL_CS16; tss16.es = tss16.ds = tss16.ss = X86_SEL_DS16; tss16.ldt = X86_SEL_LDT; struct tss16* tss16_addr = (struct tss16*)(host_mem + seg_tss16_2.base); memcpy(tss16_addr, &tss16, sizeof(tss16)); memset(&tss16, 0, sizeof(tss16)); tss16.ss0 = tss16.ss1 = tss16.ss2 = X86_SEL_DS16; tss16.sp0 = tss16.sp1 = tss16.sp2 = X86_ADDR_STACK0; tss16.ip = X86_ADDR_VAR_USER_CODE2; tss16.flags = (1 << 1); tss16.cs = X86_SEL_CS16_CPL3; tss16.es = tss16.ds = tss16.ss = X86_SEL_DS16_CPL3; tss16.ldt = X86_SEL_LDT; struct tss16* tss16_cpl3_addr = (struct tss16*)(host_mem + seg_tss16_cpl3.base); memcpy(tss16_cpl3_addr, &tss16, sizeof(tss16)); struct tss32 tss32; memset(&tss32, 0, sizeof(tss32)); tss32.ss0 = tss32.ss1 = tss32.ss2 = X86_SEL_DS32; tss32.sp0 = tss32.sp1 = tss32.sp2 = X86_ADDR_STACK0; tss32.ip = X86_ADDR_VAR_USER_CODE; tss32.flags = (1 << 1) | (1 << 17); tss32.ldt = X86_SEL_LDT; tss32.cr3 = sregs.cr3; tss32.io_bitmap = offsetof(struct tss32, io_bitmap); struct tss32* tss32_addr = (struct tss32*)(host_mem + seg_tss32_vm86.base); memcpy(tss32_addr, &tss32, sizeof(tss32)); memset(&tss32, 0, sizeof(tss32)); tss32.ss0 = tss32.ss1 = tss32.ss2 = X86_SEL_DS32; tss32.sp0 = tss32.sp1 = tss32.sp2 = X86_ADDR_STACK0; tss32.ip = X86_ADDR_VAR_USER_CODE; tss32.flags = (1 << 1); tss32.cr3 = sregs.cr3; tss32.es = tss32.ds = tss32.ss = tss32.gs = tss32.fs = X86_SEL_DS32; tss32.cs = X86_SEL_CS32; tss32.ldt = X86_SEL_LDT; tss32.cr3 = sregs.cr3; tss32.io_bitmap = offsetof(struct tss32, io_bitmap); struct tss32* tss32_cpl3_addr = (struct tss32*)(host_mem + seg_tss32_2.base); memcpy(tss32_cpl3_addr, &tss32, sizeof(tss32)); struct tss64 tss64; memset(&tss64, 0, sizeof(tss64)); tss64.rsp[0] = X86_ADDR_STACK0; tss64.rsp[1] = X86_ADDR_STACK0; tss64.rsp[2] = X86_ADDR_STACK0; tss64.io_bitmap = offsetof(struct tss64, io_bitmap); struct tss64* tss64_addr = (struct tss64*)(host_mem + seg_tss64.base); memcpy(tss64_addr, &tss64, sizeof(tss64)); memset(&tss64, 0, sizeof(tss64)); tss64.rsp[0] = X86_ADDR_STACK0; tss64.rsp[1] = X86_ADDR_STACK0; tss64.rsp[2] = X86_ADDR_STACK0; tss64.io_bitmap = offsetof(struct tss64, io_bitmap); struct tss64* tss64_cpl3_addr = (struct tss64*)(host_mem + seg_tss64_cpl3.base); memcpy(tss64_cpl3_addr, &tss64, sizeof(tss64)); if (text_size > 1000) text_size = 1000; if (text_prefix) { memcpy(host_text, text_prefix, text_prefix_size); void* patch = memmem(host_text, text_prefix_size, "\xde\xc0\xad\x0b", 4); if (patch) *((uint32_t*)patch) = guest_mem + X86_ADDR_TEXT + ((char*)patch - host_text) + 6; uint16_t magic = X86_PREFIX_SIZE; patch = memmem(host_text, text_prefix_size, &magic, sizeof(magic)); if (patch) *((uint16_t*)patch) = guest_mem + X86_ADDR_TEXT + text_prefix_size; } memcpy((void*)(host_text + text_prefix_size), text, text_size); *(host_text + text_prefix_size + text_size) = 0xf4; memcpy(host_mem + X86_ADDR_VAR_USER_CODE, text, text_size); *(host_mem + X86_ADDR_VAR_USER_CODE + text_size) = 0xf4; *(host_mem + X86_ADDR_VAR_HLT) = 0xf4; memcpy(host_mem + X86_ADDR_VAR_SYSRET, "\x0f\x07\xf4", 3); memcpy(host_mem + X86_ADDR_VAR_SYSEXIT, "\x0f\x35\xf4", 3); *(uint64_t*)(host_mem + X86_ADDR_VAR_VMWRITE_FLD) = 0; *(uint64_t*)(host_mem + X86_ADDR_VAR_VMWRITE_VAL) = 0; if (opt_count > 2) opt_count = 2; for (uintptr_t i = 0; i < opt_count; i++) { uint64_t typ = opt_array_ptr[i].typ; uint64_t val = opt_array_ptr[i].val; switch (typ % 9) { case 0: sregs.cr0 ^= val & (X86_CR0_MP | X86_CR0_EM | X86_CR0_ET | X86_CR0_NE | X86_CR0_WP | X86_CR0_AM | X86_CR0_NW | X86_CR0_CD); break; case 1: sregs.cr4 ^= val & (X86_CR4_VME | X86_CR4_PVI | X86_CR4_TSD | X86_CR4_DE | X86_CR4_MCE | X86_CR4_PGE | X86_CR4_PCE | X86_CR4_OSFXSR | X86_CR4_OSXMMEXCPT | X86_CR4_UMIP | X86_CR4_VMXE | X86_CR4_SMXE | X86_CR4_FSGSBASE | X86_CR4_PCIDE | X86_CR4_OSXSAVE | X86_CR4_SMEP | X86_CR4_SMAP | X86_CR4_PKE); break; case 2: sregs.efer ^= val & (X86_EFER_SCE | X86_EFER_NXE | X86_EFER_SVME | X86_EFER_LMSLE | X86_EFER_FFXSR | X86_EFER_TCE); break; case 3: val &= ((1 << 8) | (1 << 9) | (1 << 10) | (1 << 12) | (1 << 13) | (1 << 14) | (1 << 15) | (1 << 18) | (1 << 19) | (1 << 20) | (1 << 21)); regs.rflags ^= val; tss16_addr->flags ^= val; tss16_cpl3_addr->flags ^= val; tss32_addr->flags ^= val; tss32_cpl3_addr->flags ^= val; break; case 4: seg_cs16.type = val & 0xf; seg_cs32.type = val & 0xf; seg_cs64.type = val & 0xf; break; case 5: seg_cs16_cpl3.type = val & 0xf; seg_cs32_cpl3.type = val & 0xf; seg_cs64_cpl3.type = val & 0xf; break; case 6: seg_ds16.type = val & 0xf; seg_ds32.type = val & 0xf; seg_ds64.type = val & 0xf; break; case 7: seg_ds16_cpl3.type = val & 0xf; seg_ds32_cpl3.type = val & 0xf; seg_ds64_cpl3.type = val & 0xf; break; case 8: *(uint64_t*)(host_mem + X86_ADDR_VAR_VMWRITE_FLD) = (val & 0xffff); *(uint64_t*)(host_mem + X86_ADDR_VAR_VMWRITE_VAL) = (val >> 16); break; default: exit(1); } } regs.rflags |= 2; fill_segment_descriptor(gdt, ldt, &seg_ldt); fill_segment_descriptor(gdt, ldt, &seg_cs16); fill_segment_descriptor(gdt, ldt, &seg_ds16); fill_segment_descriptor(gdt, ldt, &seg_cs16_cpl3); fill_segment_descriptor(gdt, ldt, &seg_ds16_cpl3); fill_segment_descriptor(gdt, ldt, &seg_cs32); fill_segment_descriptor(gdt, ldt, &seg_ds32); fill_segment_descriptor(gdt, ldt, &seg_cs32_cpl3); fill_segment_descriptor(gdt, ldt, &seg_ds32_cpl3); fill_segment_descriptor(gdt, ldt, &seg_cs64); fill_segment_descriptor(gdt, ldt, &seg_ds64); fill_segment_descriptor(gdt, ldt, &seg_cs64_cpl3); fill_segment_descriptor(gdt, ldt, &seg_ds64_cpl3); fill_segment_descriptor(gdt, ldt, &seg_tss32); fill_segment_descriptor(gdt, ldt, &seg_tss32_2); fill_segment_descriptor(gdt, ldt, &seg_tss32_cpl3); fill_segment_descriptor(gdt, ldt, &seg_tss32_vm86); fill_segment_descriptor(gdt, ldt, &seg_tss16); fill_segment_descriptor(gdt, ldt, &seg_tss16_2); fill_segment_descriptor(gdt, ldt, &seg_tss16_cpl3); fill_segment_descriptor_dword(gdt, ldt, &seg_tss64); fill_segment_descriptor_dword(gdt, ldt, &seg_tss64_cpl3); fill_segment_descriptor(gdt, ldt, &seg_cgate16); fill_segment_descriptor(gdt, ldt, &seg_tgate16); fill_segment_descriptor(gdt, ldt, &seg_cgate32); fill_segment_descriptor(gdt, ldt, &seg_tgate32); fill_segment_descriptor_dword(gdt, ldt, &seg_cgate64); if (ioctl(cpufd, KVM_SET_SREGS, &sregs)) return -1; if (ioctl(cpufd, KVM_SET_REGS, ®s)) return -1; return 0; } #define RFLAGS_1_BIT (1ULL << 1) #define RFLAGS_IF_BIT (1ULL << 9) static void reset_cpu_regs(int cpufd, int cpu_id, size_t text_size) { struct kvm_regs regs; memset(®s, 0, sizeof(regs)); regs.rflags |= RFLAGS_1_BIT | RFLAGS_IF_BIT; regs.rip = executor_fn_guest_addr(guest_main); regs.rsp = X86_SYZOS_ADDR_STACK0; regs.rdi = text_size; regs.rsi = cpu_id; ioctl(cpufd, KVM_SET_REGS, ®s); } static void install_user_code(struct kvm_syz_vm* vm, int cpufd, int cpu_id, const void* text, size_t text_size) { if ((cpu_id < 0) || (cpu_id >= KVM_MAX_VCPU)) return; if (text_size > KVM_PAGE_SIZE) text_size = KVM_PAGE_SIZE; void* target = (void*)((uint64_t)vm->user_text + (KVM_PAGE_SIZE * cpu_id)); memcpy(target, text, text_size); setup_gdt_ldt_pg(vm, cpufd); setup_cpuid(cpufd); reset_cpu_regs(cpufd, cpu_id, text_size); } struct addr_size { void* addr; size_t size; }; static struct addr_size alloc_guest_mem(struct addr_size* free, size_t size) { struct addr_size ret = {.addr = NULL, .size = 0}; if (free->size < size) return ret; ret.addr = free->addr; ret.size = size; free->addr = (void*)((char*)free->addr + size); free->size -= size; return ret; } static void vm_set_user_memory_region(int vmfd, uint32_t slot, uint32_t flags, uint64_t guest_phys_addr, uint64_t memory_size, uint64_t userspace_addr) { struct kvm_userspace_memory_region memreg; memreg.slot = slot; memreg.flags = flags; memreg.guest_phys_addr = guest_phys_addr; memreg.memory_size = memory_size; memreg.userspace_addr = userspace_addr; ioctl(vmfd, KVM_SET_USER_MEMORY_REGION, &memreg); } static void install_syzos_code(void* host_mem, size_t mem_size) { size_t size = (char*)&__stop_guest - (char*)&__start_guest; if (size > mem_size) exit(1); memcpy(host_mem, &__start_guest, size); } static void setup_vm(int vmfd, struct kvm_syz_vm* vm) { struct addr_size allocator = {.addr = vm->host_mem, .size = vm->total_pages * KVM_PAGE_SIZE}; int slot = 0; for (size_t i = 0; i < sizeof(syzos_mem_regions) / sizeof(syzos_mem_regions[0]); i++) { const struct mem_region* r = &syzos_mem_regions[i]; if (r->flags & MEM_REGION_FLAG_NO_HOST_MEM) continue; struct addr_size next = alloc_guest_mem(&allocator, r->pages * KVM_PAGE_SIZE); uint32_t flags = 0; if (r->flags & MEM_REGION_FLAG_DIRTY_LOG) flags |= KVM_MEM_LOG_DIRTY_PAGES; if (r->flags & MEM_REGION_FLAG_READONLY) flags |= KVM_MEM_READONLY; if (r->flags & MEM_REGION_FLAG_USER_CODE) vm->user_text = next.addr; if (r->flags & MEM_REGION_FLAG_GPA0) vm->gpa0_mem = next.addr; if (r->flags & MEM_REGION_FLAG_EXECUTOR_CODE) install_syzos_code(next.addr, next.size); vm_set_user_memory_region(vmfd, slot++, flags, r->gpa, next.size, (uintptr_t)next.addr); } struct addr_size next = alloc_guest_mem(&allocator, allocator.size); vm_set_user_memory_region(vmfd, slot++, 0, X86_SYZOS_ADDR_UNUSED, next.size, (uintptr_t)next.addr); } static long syz_kvm_setup_syzos_vm(volatile long a0, volatile long a1) { const int vmfd = a0; void* host_mem = (void*)a1; struct kvm_syz_vm* ret = (struct kvm_syz_vm*)host_mem; ret->host_mem = (void*)((uint64_t)host_mem + KVM_PAGE_SIZE); ret->total_pages = KVM_GUEST_PAGES - 1; setup_vm(vmfd, ret); ret->vmfd = vmfd; ret->next_cpu_id = 0; return (long)ret; } static long syz_kvm_add_vcpu(volatile long a0, volatile long a1) { struct kvm_syz_vm* vm = (struct kvm_syz_vm*)a0; struct kvm_text* utext = (struct kvm_text*)a1; const void* text = utext->text; size_t text_size = utext->size; if (!vm) { errno = EINVAL; return -1; } if (vm->next_cpu_id == KVM_MAX_VCPU) { errno = ENOMEM; return -1; } int cpu_id = vm->next_cpu_id; int cpufd = ioctl(vm->vmfd, KVM_CREATE_VCPU, cpu_id); if (cpufd == -1) return -1; vm->next_cpu_id++; install_user_code(vm, cpufd, cpu_id, text, text_size); return cpufd; } static void setup_fusectl() { if (mount(0, "/sys/fs/fuse/connections", "fusectl", 0, 0)) { } } static void setup_binderfs() { if (mkdir("/dev/binderfs", 0777)) { } if (mount("binder", "/dev/binderfs", "binder", 0, NULL)) { } } static void loop(); static void sandbox_common() { prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0); if (getppid() == 1) exit(1); int netns = open("/proc/self/ns/net", O_RDONLY); if (netns == -1) exit(1); if (dup2(netns, kInitNetNsFd) < 0) exit(1); close(netns); struct rlimit rlim; rlim.rlim_cur = rlim.rlim_max = (200 << 20); setrlimit(RLIMIT_AS, &rlim); rlim.rlim_cur = rlim.rlim_max = 32 << 20; setrlimit(RLIMIT_MEMLOCK, &rlim); rlim.rlim_cur = rlim.rlim_max = 136 << 20; setrlimit(RLIMIT_FSIZE, &rlim); rlim.rlim_cur = rlim.rlim_max = 1 << 20; setrlimit(RLIMIT_STACK, &rlim); rlim.rlim_cur = rlim.rlim_max = 128 << 20; setrlimit(RLIMIT_CORE, &rlim); rlim.rlim_cur = rlim.rlim_max = 256; setrlimit(RLIMIT_NOFILE, &rlim); if (unshare(CLONE_NEWNS)) { } if (mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, NULL)) { } if (unshare(CLONE_NEWIPC)) { } if (unshare(0x02000000)) { } if (unshare(CLONE_NEWUTS)) { } if (unshare(CLONE_SYSVSEM)) { } typedef struct { const char* name; const char* value; } sysctl_t; static const sysctl_t sysctls[] = { {"/proc/sys/kernel/shmmax", "16777216"}, {"/proc/sys/kernel/shmall", "536870912"}, {"/proc/sys/kernel/shmmni", "1024"}, {"/proc/sys/kernel/msgmax", "8192"}, {"/proc/sys/kernel/msgmni", "1024"}, {"/proc/sys/kernel/msgmnb", "1024"}, {"/proc/sys/kernel/sem", "1024 1048576 500 1024"}, }; unsigned i; for (i = 0; i < sizeof(sysctls) / sizeof(sysctls[0]); i++) write_file(sysctls[i].name, sysctls[i].value); } static void drop_caps(void) { struct __user_cap_header_struct cap_hdr = {}; struct __user_cap_data_struct cap_data[2] = {}; cap_hdr.version = _LINUX_CAPABILITY_VERSION_3; cap_hdr.pid = getpid(); if (syscall(SYS_capget, &cap_hdr, &cap_data)) exit(1); const int drop = (1 << CAP_SYS_PTRACE) | (1 << CAP_SYS_NICE); cap_data[0].effective &= ~drop; cap_data[0].permitted &= ~drop; cap_data[0].inheritable &= ~drop; if (syscall(SYS_capset, &cap_hdr, &cap_data)) exit(1); } #define PRIMARY_ARCH AUDIT_ARCH_X86_64 const struct sock_filter x86_64_app_filter[] = { BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 0, 0, 108), BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 202, 106, 0), BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 16, 105, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 162, 53, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 104, 27, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 44, 13, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 32, 7, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 17, 3, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 8, 1, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 6, 99, 98), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 16, 98, 97), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 24, 1, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 21, 96, 95), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 29, 95, 94), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 38, 3, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 35, 1, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 33, 92, 91), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 37, 91, 90), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 43, 90, 89), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 91, 7, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 72, 3, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 58, 1, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 57, 86, 85), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 64, 85, 84), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 89, 1, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 82, 83, 82), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 90, 82, 81), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 95, 3, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 93, 1, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 92, 79, 78), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 94, 78, 77), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 103, 77, 76), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 135, 13, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 117, 7, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 112, 3, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 107, 1, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 105, 72, 71), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 111, 71, 70), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 115, 1, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 113, 69, 68), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 116, 68, 67), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 124, 3, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 120, 1, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 119, 65, 64), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 122, 64, 63), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 132, 63, 62), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 155, 5, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 140, 3, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 137, 1, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 136, 59, 58), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 139, 58, 57), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 153, 57, 56), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 160, 3, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 157, 1, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 156, 54, 53), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 159, 53, 52), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 161, 52, 51), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 262, 25, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 228, 13, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 206, 7, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 186, 3, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 179, 1, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 163, 46, 45), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 180, 45, 44), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 203, 1, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 201, 43, 42), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 205, 42, 41), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 221, 3, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 217, 1, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 211, 39, 38), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 220, 38, 37), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 227, 37, 36), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 251, 5, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 247, 3, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 233, 1, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 232, 33, 32), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 235, 32, 31), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 248, 31, 30), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 257, 3, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 254, 1, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 253, 28, 27), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 256, 27, 26), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 261, 26, 25), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 321, 13, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 302, 7, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 283, 3, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 280, 1, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 279, 21, 20), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 282, 20, 19), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 285, 1, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 284, 18, 17), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 300, 17, 16), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 314, 3, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 306, 1, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 303, 14, 13), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 312, 13, 12), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 320, 12, 11), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 434, 5, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 424, 3, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 332, 1, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 329, 8, 7), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 333, 7, 6), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 425, 6, 5), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 440, 3, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 438, 1, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 437, 3, 2), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 439, 2, 1), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 441, 1, 0), BPF_STMT(BPF_RET | BPF_K, SECCOMP_RET_ALLOW), }; #define x86_64_app_filter_size (sizeof(x86_64_app_filter) / sizeof(struct sock_filter)) static const struct sock_filter* primary_app_filter = x86_64_app_filter; static const size_t primary_app_filter_size = x86_64_app_filter_size; const struct sock_filter x86_64_system_filter[] = { BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 0, 0, 98), BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 202, 96, 0), BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 16, 95, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 186, 47, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 91, 23, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 38, 11, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 24, 5, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 17, 3, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 8, 1, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 6, 89, 88), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 16, 88, 87), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 21, 87, 86), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 35, 3, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 32, 1, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 29, 84, 83), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 33, 83, 82), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 37, 82, 81), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 72, 5, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 58, 3, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 44, 1, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 43, 78, 77), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 57, 77, 76), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 64, 76, 75), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 89, 3, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 79, 1, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 78, 73, 72), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 82, 72, 71), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 90, 71, 70), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 140, 11, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 112, 5, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 95, 3, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 93, 1, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 92, 66, 65), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 94, 65, 64), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 111, 64, 63), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 137, 3, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 135, 1, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 132, 61, 60), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 136, 60, 59), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 139, 59, 58), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 169, 5, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 157, 3, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 155, 1, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 153, 55, 54), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 156, 54, 53), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 167, 53, 52), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 179, 3, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 175, 1, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 172, 50, 49), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 177, 49, 48), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 180, 48, 47), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 280, 23, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 247, 11, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 217, 5, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 206, 3, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 203, 1, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 201, 42, 41), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 205, 41, 40), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 211, 40, 39), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 233, 3, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 221, 1, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 220, 37, 36), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 232, 36, 35), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 235, 35, 34), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 257, 5, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 254, 3, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 251, 1, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 248, 31, 30), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 253, 30, 29), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 256, 29, 28), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 265, 3, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 262, 1, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 261, 26, 25), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 264, 25, 24), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 279, 24, 23), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 321, 11, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 302, 5, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 285, 3, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 283, 1, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 282, 19, 18), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 284, 18, 17), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 300, 17, 16), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 314, 3, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 305, 1, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 303, 14, 13), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 312, 13, 12), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 320, 12, 11), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 434, 5, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 424, 3, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 332, 1, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 329, 8, 7), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 333, 7, 6), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 425, 6, 5), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 440, 3, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 438, 1, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 437, 3, 2), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 439, 2, 1), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 441, 1, 0), BPF_STMT(BPF_RET | BPF_K, SECCOMP_RET_ALLOW), }; #define x86_64_system_filter_size (sizeof(x86_64_system_filter) / sizeof(struct sock_filter)) static const struct sock_filter* system_filter = x86_64_system_filter; static const size_t system_filter_size = x86_64_system_filter_size; #define kFilterMaxSize (x86_64_app_filter_size + 3 + 1 + 4 + 2) #define syscall_nr (offsetof(struct seccomp_data, nr)) #define arch_nr (offsetof(struct seccomp_data, arch)) typedef struct Filter_t { struct sock_filter data[kFilterMaxSize]; size_t count; } Filter; static void push_back(Filter* filter_array, struct sock_filter filter) { if (filter_array->count == kFilterMaxSize) exit(1); filter_array->data[filter_array->count++] = filter; } static void Disallow(Filter* f) { struct sock_filter filter = BPF_STMT(BPF_RET | BPF_K, SECCOMP_RET_TRAP); push_back(f, filter); } static void ExamineSyscall(Filter* f) { struct sock_filter filter = BPF_STMT(BPF_LD | BPF_W | BPF_ABS, syscall_nr); push_back(f, filter); } static void ValidateArchitecture(Filter* f) { struct sock_filter filter1 = BPF_STMT(BPF_LD | BPF_W | BPF_ABS, arch_nr); struct sock_filter filter2 = BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, PRIMARY_ARCH, 1, 0); push_back(f, filter1); push_back(f, filter2); Disallow(f); } static void install_filter(const Filter* f) { struct sock_fprog prog = { (unsigned short)f->count, (struct sock_filter*)&f->data[0], }; if (prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &prog) < 0) exit(1); } static void set_seccomp_filter(const struct sock_filter* filter, size_t size) { Filter f; f.count = 0; ValidateArchitecture(&f); ExamineSyscall(&f); for (size_t i = 0; i < size; ++i) push_back(&f, filter[i]); Disallow(&f); install_filter(&f); } enum { SCFS_RestrictedApp, SCFS_SystemAccount }; static void set_app_seccomp_filter(int account) { if (account == SCFS_SystemAccount) { set_seccomp_filter(system_filter, system_filter_size); } else { set_seccomp_filter(primary_app_filter, primary_app_filter_size); } } inline int mkdir(const char* path, mode_t mode) { return mkdirat(AT_FDCWD, path, mode); } inline int rmdir(const char* path) { return unlinkat(AT_FDCWD, path, AT_REMOVEDIR); } inline int symlink(const char* old_path, const char* new_path) { return symlinkat(old_path, AT_FDCWD, new_path); } #define AID_NET_BT_ADMIN 3001 #define AID_NET_BT 3002 #define AID_INET 3003 #define AID_EVERYBODY 9997 #define AID_APP 10000 #define UNTRUSTED_APP_UID (AID_APP + 999) #define UNTRUSTED_APP_GID (AID_APP + 999) #define SYSTEM_UID 1000 #define SYSTEM_GID 1000 const char* const SELINUX_CONTEXT_UNTRUSTED_APP = "u:r:untrusted_app:s0:c512,c768"; const char* const SELINUX_LABEL_APP_DATA_FILE = "u:object_r:app_data_file:s0:c512,c768"; const char* const SELINUX_CONTEXT_FILE = "/proc/thread-self/attr/current"; const char* const SELINUX_XATTR_NAME = "security.selinux"; const gid_t UNTRUSTED_APP_GROUPS[] = {UNTRUSTED_APP_GID, AID_NET_BT_ADMIN, AID_NET_BT, AID_INET, AID_EVERYBODY}; const size_t UNTRUSTED_APP_NUM_GROUPS = sizeof(UNTRUSTED_APP_GROUPS) / sizeof(UNTRUSTED_APP_GROUPS[0]); const gid_t SYSTEM_GROUPS[] = {SYSTEM_GID, AID_NET_BT_ADMIN, AID_NET_BT, AID_INET, AID_EVERYBODY}; const size_t SYSTEM_NUM_GROUPS = sizeof(SYSTEM_GROUPS) / sizeof(SYSTEM_GROUPS[0]); static void getcon(char* context, size_t context_size) { int fd = open(SELINUX_CONTEXT_FILE, O_RDONLY); if (fd < 0) exit(1); ssize_t nread = read(fd, context, context_size); close(fd); if (nread <= 0) exit(1); if (context[nread - 1] == '\n') context[nread - 1] = '\0'; } static void setcon(const char* context) { char new_context[512]; int fd = open(SELINUX_CONTEXT_FILE, O_WRONLY); if (fd < 0) exit(1); ssize_t bytes_written = write(fd, context, strlen(context)); close(fd); if (bytes_written != (ssize_t)strlen(context)) exit(1); getcon(new_context, sizeof(new_context)); if (strcmp(context, new_context) != 0) exit(1); } static void setfilecon(const char* path, const char* context) { char new_context[512]; if (setxattr(path, SELINUX_XATTR_NAME, context, strlen(context) + 1, 0) != 0) exit(1); if (getxattr(path, SELINUX_XATTR_NAME, new_context, sizeof(new_context)) < 0) exit(1); if (strcmp(context, new_context) != 0) exit(1); } static int do_sandbox_android(uint64_t sandbox_arg) { setup_fusectl(); sandbox_common(); drop_caps(); if (unshare(CLONE_NEWNET)) { } write_file("/proc/sys/net/ipv4/ping_group_range", "0 65535"); uid_t uid = UNTRUSTED_APP_UID; size_t num_groups = UNTRUSTED_APP_NUM_GROUPS; const gid_t* groups = UNTRUSTED_APP_GROUPS; gid_t gid = UNTRUSTED_APP_GID; if (sandbox_arg == 1) { uid = SYSTEM_UID; num_groups = SYSTEM_NUM_GROUPS; groups = SYSTEM_GROUPS; gid = SYSTEM_GID; } if (chown(".", uid, uid) != 0) exit(1); if (setgroups(num_groups, groups) != 0) exit(1); if (setresgid(gid, gid, gid) != 0) exit(1); setup_binderfs(); int account = SCFS_RestrictedApp; if (sandbox_arg == 1) account = SCFS_SystemAccount; set_app_seccomp_filter(account); if (setresuid(uid, uid, uid) != 0) exit(1); prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0); setfilecon(".", SELINUX_LABEL_APP_DATA_FILE); if (uid == UNTRUSTED_APP_UID) setcon(SELINUX_CONTEXT_UNTRUSTED_APP); loop(); exit(1); } #define FS_IOC_SETFLAGS _IOW('f', 2, long) static void remove_dir(const char* dir) { int iter = 0; DIR* dp = 0; retry: dp = opendir(dir); if (dp == NULL) { if (errno == EMFILE) { exit(1); } exit(1); } struct dirent* ep = 0; while ((ep = readdir(dp))) { if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0) continue; char filename[FILENAME_MAX]; snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name); struct stat st; if (lstat(filename, &st)) exit(1); if (S_ISDIR(st.st_mode)) { remove_dir(filename); continue; } int i; for (i = 0;; i++) { if (unlink(filename) == 0) break; if (errno == EPERM) { int fd = open(filename, O_RDONLY); if (fd != -1) { long flags = 0; if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) { } close(fd); continue; } } if (errno == EROFS) { break; } if (errno != EBUSY || i > 100) exit(1); } } closedir(dp); for (int i = 0;; i++) { if (rmdir(dir) == 0) break; if (i < 100) { if (errno == EPERM) { int fd = open(dir, O_RDONLY); if (fd != -1) { long flags = 0; if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) { } close(fd); continue; } } if (errno == EROFS) { break; } if (errno == EBUSY) { continue; } if (errno == ENOTEMPTY) { if (iter < 100) { iter++; goto retry; } } } exit(1); } } static int inject_fault(int nth) { int fd; fd = open("/proc/thread-self/fail-nth", O_RDWR); if (fd == -1) exit(1); char buf[16]; sprintf(buf, "%d", nth); if (write(fd, buf, strlen(buf)) != (ssize_t)strlen(buf)) exit(1); return fd; } static void kill_and_wait(int pid, int* status) { kill(-pid, SIGKILL); kill(pid, SIGKILL); for (int i = 0; i < 100; i++) { if (waitpid(-1, status, WNOHANG | __WALL) == pid) return; usleep(1000); } DIR* dir = opendir("/sys/fs/fuse/connections"); if (dir) { for (;;) { struct dirent* ent = readdir(dir); if (!ent) break; if (strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0) continue; char abort[300]; snprintf(abort, sizeof(abort), "/sys/fs/fuse/connections/%s/abort", ent->d_name); int fd = open(abort, O_WRONLY); if (fd == -1) { continue; } if (write(fd, abort, 1) < 0) { } close(fd); } closedir(dir); } else { } while (waitpid(-1, status, __WALL) != pid) { } } static void reset_loop() { char buf[64]; snprintf(buf, sizeof(buf), "/dev/loop%llu", procid); int loopfd = open(buf, O_RDWR); if (loopfd != -1) { ioctl(loopfd, LOOP_CLR_FD, 0); close(loopfd); } } static void setup_test() { prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0); setpgrp(); write_file("/proc/self/oom_score_adj", "1000"); if (symlink("/dev/binderfs", "./binderfs")) { } } static const char* setup_fault() { int fd = open("/proc/self/make-it-fail", O_WRONLY); if (fd == -1) return "CONFIG_FAULT_INJECTION is not enabled"; close(fd); fd = open("/proc/thread-self/fail-nth", O_WRONLY); if (fd == -1) return "kernel does not have systematic fault injection support"; close(fd); static struct { const char* file; const char* val; bool fatal; } files[] = { {"/sys/kernel/debug/failslab/ignore-gfp-wait", "N", true}, {"/sys/kernel/debug/fail_futex/ignore-private", "N", false}, {"/sys/kernel/debug/fail_page_alloc/ignore-gfp-highmem", "N", false}, {"/sys/kernel/debug/fail_page_alloc/ignore-gfp-wait", "N", false}, {"/sys/kernel/debug/fail_page_alloc/min-order", "0", false}, }; unsigned i; for (i = 0; i < sizeof(files) / sizeof(files[0]); i++) { if (!write_file(files[i].file, files[i].val)) { if (files[i].fatal) return "failed to write fault injection file"; } } return NULL; } #define FUSE_MIN_READ_BUFFER 8192 enum fuse_opcode { FUSE_LOOKUP = 1, FUSE_FORGET = 2, FUSE_GETATTR = 3, FUSE_SETATTR = 4, FUSE_READLINK = 5, FUSE_SYMLINK = 6, FUSE_MKNOD = 8, FUSE_MKDIR = 9, FUSE_UNLINK = 10, FUSE_RMDIR = 11, FUSE_RENAME = 12, FUSE_LINK = 13, FUSE_OPEN = 14, FUSE_READ = 15, FUSE_WRITE = 16, FUSE_STATFS = 17, FUSE_RELEASE = 18, FUSE_FSYNC = 20, FUSE_SETXATTR = 21, FUSE_GETXATTR = 22, FUSE_LISTXATTR = 23, FUSE_REMOVEXATTR = 24, FUSE_FLUSH = 25, FUSE_INIT = 26, FUSE_OPENDIR = 27, FUSE_READDIR = 28, FUSE_RELEASEDIR = 29, FUSE_FSYNCDIR = 30, FUSE_GETLK = 31, FUSE_SETLK = 32, FUSE_SETLKW = 33, FUSE_ACCESS = 34, FUSE_CREATE = 35, FUSE_INTERRUPT = 36, FUSE_BMAP = 37, FUSE_DESTROY = 38, FUSE_IOCTL = 39, FUSE_POLL = 40, FUSE_NOTIFY_REPLY = 41, FUSE_BATCH_FORGET = 42, FUSE_FALLOCATE = 43, FUSE_READDIRPLUS = 44, FUSE_RENAME2 = 45, FUSE_LSEEK = 46, FUSE_COPY_FILE_RANGE = 47, FUSE_SETUPMAPPING = 48, FUSE_REMOVEMAPPING = 49, FUSE_SYNCFS = 50, FUSE_TMPFILE = 51, FUSE_STATX = 52, CUSE_INIT = 4096, CUSE_INIT_BSWAP_RESERVED = 1048576, FUSE_INIT_BSWAP_RESERVED = 436207616, }; struct fuse_in_header { uint32_t len; uint32_t opcode; uint64_t unique; uint64_t nodeid; uint32_t uid; uint32_t gid; uint32_t pid; uint32_t padding; }; struct fuse_out_header { uint32_t len; uint32_t error; uint64_t unique; }; struct syz_fuse_req_out { struct fuse_out_header* init; struct fuse_out_header* lseek; struct fuse_out_header* bmap; struct fuse_out_header* poll; struct fuse_out_header* getxattr; struct fuse_out_header* lk; struct fuse_out_header* statfs; struct fuse_out_header* write; struct fuse_out_header* read; struct fuse_out_header* open; struct fuse_out_header* attr; struct fuse_out_header* entry; struct fuse_out_header* dirent; struct fuse_out_header* direntplus; struct fuse_out_header* create_open; struct fuse_out_header* ioctl; struct fuse_out_header* statx; }; static int fuse_send_response(int fd, const struct fuse_in_header* in_hdr, struct fuse_out_header* out_hdr) { if (!out_hdr) { return -1; } out_hdr->unique = in_hdr->unique; if (write(fd, out_hdr, out_hdr->len) == -1) { return -1; } return 0; } static volatile long syz_fuse_handle_req(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { struct syz_fuse_req_out* req_out = (struct syz_fuse_req_out*)a3; struct fuse_out_header* out_hdr = NULL; char* buf = (char*)a1; int buf_len = (int)a2; int fd = (int)a0; if (!req_out) { return -1; } if (buf_len < FUSE_MIN_READ_BUFFER) { return -1; } int ret = read(fd, buf, buf_len); if (ret == -1) { return -1; } if ((size_t)ret < sizeof(struct fuse_in_header)) { return -1; } const struct fuse_in_header* in_hdr = (const struct fuse_in_header*)buf; if (in_hdr->len > (uint32_t)ret) { return -1; } switch (in_hdr->opcode) { case FUSE_GETATTR: case FUSE_SETATTR: out_hdr = req_out->attr; break; case FUSE_LOOKUP: case FUSE_SYMLINK: case FUSE_LINK: case FUSE_MKNOD: case FUSE_MKDIR: out_hdr = req_out->entry; break; case FUSE_OPEN: case FUSE_OPENDIR: out_hdr = req_out->open; break; case FUSE_STATFS: out_hdr = req_out->statfs; break; case FUSE_RMDIR: case FUSE_RENAME: case FUSE_RENAME2: case FUSE_FALLOCATE: case FUSE_SETXATTR: case FUSE_REMOVEXATTR: case FUSE_FSYNCDIR: case FUSE_FSYNC: case FUSE_SETLKW: case FUSE_SETLK: case FUSE_ACCESS: case FUSE_FLUSH: case FUSE_RELEASE: case FUSE_RELEASEDIR: case FUSE_UNLINK: case FUSE_DESTROY: out_hdr = req_out->init; if (!out_hdr) { return -1; } out_hdr->len = sizeof(struct fuse_out_header); break; case FUSE_READ: out_hdr = req_out->read; break; case FUSE_READDIR: out_hdr = req_out->dirent; break; case FUSE_READDIRPLUS: out_hdr = req_out->direntplus; break; case FUSE_INIT: out_hdr = req_out->init; break; case FUSE_LSEEK: out_hdr = req_out->lseek; break; case FUSE_GETLK: out_hdr = req_out->lk; break; case FUSE_BMAP: out_hdr = req_out->bmap; break; case FUSE_POLL: out_hdr = req_out->poll; break; case FUSE_GETXATTR: case FUSE_LISTXATTR: out_hdr = req_out->getxattr; break; case FUSE_WRITE: case FUSE_COPY_FILE_RANGE: out_hdr = req_out->write; break; case FUSE_FORGET: case FUSE_BATCH_FORGET: return 0; case FUSE_CREATE: out_hdr = req_out->create_open; break; case FUSE_IOCTL: out_hdr = req_out->ioctl; break; case FUSE_STATX: out_hdr = req_out->statx; break; default: return -1; } return fuse_send_response(fd, in_hdr, out_hdr); } #define HWSIM_ATTR_RX_RATE 5 #define HWSIM_ATTR_SIGNAL 6 #define HWSIM_ATTR_ADDR_RECEIVER 1 #define HWSIM_ATTR_FRAME 3 #define WIFI_MAX_INJECT_LEN 2048 static int hwsim_register_socket(struct nlmsg* nlmsg, int sock, int hwsim_family) { struct genlmsghdr genlhdr; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = HWSIM_CMD_REGISTER; netlink_init(nlmsg, hwsim_family, 0, &genlhdr, sizeof(genlhdr)); int err = netlink_send_ext(nlmsg, sock, 0, NULL, false); if (err < 0) { } return err; } static int hwsim_inject_frame(struct nlmsg* nlmsg, int sock, int hwsim_family, uint8_t* mac_addr, uint8_t* data, int len) { struct genlmsghdr genlhdr; uint32_t rx_rate = WIFI_DEFAULT_RX_RATE; uint32_t signal = WIFI_DEFAULT_SIGNAL; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = HWSIM_CMD_FRAME; netlink_init(nlmsg, hwsim_family, 0, &genlhdr, sizeof(genlhdr)); netlink_attr(nlmsg, HWSIM_ATTR_RX_RATE, &rx_rate, sizeof(rx_rate)); netlink_attr(nlmsg, HWSIM_ATTR_SIGNAL, &signal, sizeof(signal)); netlink_attr(nlmsg, HWSIM_ATTR_ADDR_RECEIVER, mac_addr, ETH_ALEN); netlink_attr(nlmsg, HWSIM_ATTR_FRAME, data, len); int err = netlink_send_ext(nlmsg, sock, 0, NULL, false); if (err < 0) { } return err; } static long syz_80211_inject_frame(volatile long a0, volatile long a1, volatile long a2) { uint8_t* mac_addr = (uint8_t*)a0; uint8_t* buf = (uint8_t*)a1; int buf_len = (int)a2; struct nlmsg tmp_msg; if (buf_len < 0 || buf_len > WIFI_MAX_INJECT_LEN) { return -1; } int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC); if (sock < 0) { return -1; } int hwsim_family_id = netlink_query_family_id(&tmp_msg, sock, "MAC80211_HWSIM", false); if (hwsim_family_id < 0) { close(sock); return -1; } int ret = hwsim_register_socket(&tmp_msg, sock, hwsim_family_id); if (ret < 0) { close(sock); return -1; } ret = hwsim_inject_frame(&tmp_msg, sock, hwsim_family_id, mac_addr, buf, buf_len); close(sock); if (ret < 0) { return -1; } return 0; } #define WIFI_MAX_SSID_LEN 32 #define WIFI_JOIN_IBSS_NO_SCAN 0 #define WIFI_JOIN_IBSS_BG_SCAN 1 #define WIFI_JOIN_IBSS_BG_NO_SCAN 2 static long syz_80211_join_ibss(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { char* interface = (char*)a0; uint8_t* ssid = (uint8_t*)a1; int ssid_len = (int)a2; int mode = (int)a3; struct nlmsg tmp_msg; uint8_t bssid[ETH_ALEN] = WIFI_IBSS_BSSID; if (ssid_len < 0 || ssid_len > WIFI_MAX_SSID_LEN) { return -1; } if (mode < 0 || mode > WIFI_JOIN_IBSS_BG_NO_SCAN) { return -1; } int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC); if (sock < 0) { return -1; } int nl80211_family_id = netlink_query_family_id(&tmp_msg, sock, "nl80211", false); if (nl80211_family_id < 0) { close(sock); return -1; } struct join_ibss_props ibss_props = { .wiphy_freq = WIFI_DEFAULT_FREQUENCY, .wiphy_freq_fixed = (mode == WIFI_JOIN_IBSS_NO_SCAN || mode == WIFI_JOIN_IBSS_BG_NO_SCAN), .mac = bssid, .ssid = ssid, .ssid_len = ssid_len}; int ret = nl80211_setup_ibss_interface(&tmp_msg, sock, nl80211_family_id, interface, &ibss_props, false); close(sock); if (ret < 0) { return -1; } if (mode == WIFI_JOIN_IBSS_NO_SCAN) { ret = await_ifla_operstate(&tmp_msg, interface, IF_OPER_UP, false); if (ret < 0) { return -1; } } return 0; } #define USLEEP_FORKED_CHILD (3 * 50 *1000) static long handle_clone_ret(long ret) { if (ret != 0) { return ret; } usleep(USLEEP_FORKED_CHILD); syscall(__NR_exit, 0); while (1) { } } static long syz_clone(volatile long flags, volatile long stack, volatile long stack_len, volatile long ptid, volatile long ctid, volatile long tls) { long sp = (stack + stack_len) & ~15; long ret = (long)syscall(__NR_clone, flags & ~CLONE_VM, sp, ptid, ctid, tls); return handle_clone_ret(ret); } #define MAX_CLONE_ARGS_BYTES 256 static long syz_clone3(volatile long a0, volatile long a1) { unsigned long copy_size = a1; if (copy_size < sizeof(uint64_t) || copy_size > MAX_CLONE_ARGS_BYTES) return -1; char clone_args[MAX_CLONE_ARGS_BYTES]; memcpy(&clone_args, (void*)a0, copy_size); uint64_t* flags = (uint64_t*)&clone_args; *flags &= ~CLONE_VM; return handle_clone_ret((long)syscall(__NR_clone3, &clone_args, copy_size)); } #define RESERVED_PKEY 15 static long syz_pkey_set(volatile long pkey, volatile long val) { if (pkey == RESERVED_PKEY) { errno = EINVAL; return -1; } uint32_t eax = 0; uint32_t ecx = 0; asm volatile("rdpkru" : "=a"(eax) : "c"(ecx) : "edx"); eax &= ~(3 << ((pkey % 16) * 2)); eax |= (val & 3) << ((pkey % 16) * 2); uint32_t edx = 0; asm volatile("wrpkru" ::"a"(eax), "c"(ecx), "d"(edx)); return 0; } static long syz_pidfd_open(volatile long pid, volatile long flags) { if (pid == 1) { pid = 0; } return syscall(__NR_pidfd_open, pid, flags); } struct thread_t { int created, call; event_t ready, done; }; static struct thread_t threads[16]; static void execute_call(int call); static int running; static void* thr(void* arg) { struct thread_t* th = (struct thread_t*)arg; for (;;) { event_wait(&th->ready); event_reset(&th->ready); execute_call(th->call); __atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED); event_set(&th->done); } return 0; } static void execute_one(void) { if (write(1, "executing program\n", sizeof("executing program\n") - 1)) { } int i, call, thread; for (call = 0; call < 63; call++) { for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0])); thread++) { struct thread_t* th = &threads[thread]; if (!th->created) { th->created = 1; event_init(&th->ready); event_init(&th->done); event_set(&th->done); thread_start(thr, th); } if (!event_isset(&th->done)) continue; event_reset(&th->done); th->call = call; __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED); event_set(&th->ready); if (call == 1) break; event_timedwait(&th->done, 50 + (call == 12 ? 500 : 0) + (call == 54 ? 3000 : 0) + (call == 55 ? 3000 : 0) + (call == 56 ? 3000 : 0) + (call == 57 ? 300 : 0) + (call == 58 ? 300 : 0) + (call == 59 ? 3000 : 0) + (call == 60 ? 300 : 0) + (call == 61 ? 300 : 0)); break; } } for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++) sleep_ms(1); } static void execute_one(void); #define WAIT_FLAGS __WALL static void loop(void) { int iter = 0; for (;; iter++) { char cwdbuf[32]; sprintf(cwdbuf, "./%d", iter); if (mkdir(cwdbuf, 0777)) exit(1); reset_loop(); int pid = fork(); if (pid < 0) exit(1); if (pid == 0) { if (chdir(cwdbuf)) exit(1); setup_test(); execute_one(); exit(0); } int status = 0; uint64_t start = current_time_ms(); for (;;) { sleep_ms(10); if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid) break; if (current_time_ms() - start < 5000) continue; kill_and_wait(pid, &status); break; } remove_dir(cwdbuf); } } uint64_t r[41] = {0xffffffffffffffff, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff}; void execute_call(int call) { intptr_t res = 0; switch (call) { case 0: memcpy((void*)0x200000000000, "/dev/ubi_ctrl\000", 14); inject_fault(1); res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x200000000000ul, /*flags=O_NOCTTY|O_NOATIME|O_DIRECT|O_APPEND|O_RDWR*/0x44502, /*mode=*/0); if (res != -1) r[0] = res; break; case 1: STORE_BY_BITMASK(uint8_t, , 0x200000000140, 0xa, 0, 7); STORE_BY_BITMASK(uint8_t, , 0x200000000140, 1, 7, 1); *(uint32_t*)0x200000000144 = 0xc5; *(uint32_t*)0x200000000148 = 1; *(uint64_t*)0x200000000150 = 0x200000000040; memcpy((void*)0x200000000040, "\xe1\xee\x87\xa8\xf7\x6c\x25\x7b\x75\xc1\x07\x3c\x70\x58\xbe\x82\xfe\x33\x62\xbb\xcc\xa5\x4d\xf5\x20\xd1\xca\x8f\xa9\x1b\x50\x81\x0f\x87\x6d\x1f\xab\x0a\x1c\xc2\x14\xc3\x5f\x4e\x26\x6e\x71\x64\x3d\x8c\x95\x98\x80\x87\xe4\x6a\x87\xc1\xa7\x15\xef\xfe\x06\x16\x9a\xb6\x5f\xa1\x8e\x54\x14\x40\x4f\x30\xc0\x00\x55\x61\x39\x7e\xd1\xd9\x55\x7c\x66\xa9\x94\xb9\x54\xef\xa7\x14\x98\x5a\x2a\xe4\x09\xdf\x81\x11\xfa\x8a\x36\x14\x08\x73\x4d\x15\xb3\x0c\xd9\xab\x3f\xa5\x0e\x08\x8b\x3d\x2b\xaf\xdc\x68\x9e\xa3\xcb\x7e\x52\xa9\xfc\x7f\x5d\x48\xd2\x45\xd4\x09\x7b\xb9\x33\x72\x5b\xd9\xe2\x93\x71\xcd\x77\x80\xb4\xec\x8d\x6e\x2d\xbf\x86\x1a\xad\x04\xd6\x59\x4f\x5e\xbd\x2f\xfa\xb1\xe8\xa6\x8c\x51\x57\xca\xe2\xf4\x6f\x6f\xa3\xae\xac\x0e\x3f\x8b\x7b\x97\x63\x0f\x34\x6b\xc3\x27\x6e\x53\xca\x72\xb4\x17\xf8", 197); syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0xc0185502, /*arg=*/0x200000000140ul); break; case 2: *(uint8_t*)0x200000000180 = 4; *(uint8_t*)0x200000000181 = 9; syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x4002f516, /*arg=*/0x200000000180ul); for (int i = 0; i < 4; i++) { syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x4002f516, /*arg=*/0x200000000180ul); } break; case 3: *(uint32_t*)0x2000000001c0 = -1; syscall(__NR_setsockopt, /*fd=*/r[0], /*level=*/6, /*optname=*/0x13, /*optval=*/0x2000000001c0ul, /*optlen=*/4ul); break; case 4: *(uint32_t*)0x200000000200 = 4; *(uint16_t*)0x200000000208 = 0xa; *(uint16_t*)0x20000000020a = htobe16(0x4e20); *(uint32_t*)0x20000000020c = htobe32(4); *(uint8_t*)0x200000000210 = 0xfc; *(uint8_t*)0x200000000211 = 0; memset((void*)0x200000000212, 0, 13); *(uint8_t*)0x20000000021f = 1; *(uint32_t*)0x200000000220 = 0; *(uint16_t*)0x200000000288 = 0xa; *(uint16_t*)0x20000000028a = htobe16(0x4e21); *(uint32_t*)0x20000000028c = htobe32(1); *(uint8_t*)0x200000000290 = 0xfe; *(uint8_t*)0x200000000291 = 0x80; memset((void*)0x200000000292, 0, 13); *(uint8_t*)0x20000000029f = 0xaa; *(uint32_t*)0x2000000002a0 = 9; syscall(__NR_setsockopt, /*fd=*/r[0], /*level=*/0x29, /*optname=MCAST_BLOCK_SOURCE*/0x2b, /*optval=*/0x200000000200ul, /*optlen=*/0x108ul); break; case 5: *(uint32_t*)0x200000000340 = 0x4b; memcpy((void*)0x200000000344, "\x0c\xbd\x83\x9a\x79\x58\x33\x77\x5d\x88\x69\x41\xba\x50\xa6\x62\xb8\x10\x8f\x94\x6a\xef\xdd\x5c\xb7\xb6\xeb\x3a\x78\xa0\x64\x73\xe5\x82\x89\xee\x95\x41\xad\x35\x45\x8f\xa9\xd6\xb6\x44\xbf\x56\xfd\xbb\xe1\xc4\x40\x04\x3f\x67\x9b\x3a\x03\xcf\x34\xcc\x05\xed\xc7\x36\xad\x84\x88\x52\xc6\x93\xb8\x9b\x55\x1c\xaa\xbf\x8c\xae\xdd\x7f\x8e\xe9\x80\x29\x49\x11\xc0\x2a\xcd\xb1\x10\x5f\x36\xe9\x73\x61\x6e\xb6\x09\x53\x5e\x68\xc8\xaf\xfb\x3c\x93\x5c\x76\x0f\x88\x5f\xa2\xa4\xb4\x83\x8d\x7d\xb0\x09\xe9\x19\xe5\xab\x59\x34\xb3\xb8\x5f\x8f\xf9\xe2\xaf\xc0\xa1\x86\xc9\xdc\xf9\xab\x5c\x9f\x6e\xb4\x56\x20\xdd\xbd\xa7\xe2\xa4\x67\x7a\x1e\x7c\x69\x4b\x3e\x00\xe3\x5a\x16\xd8\xe5\x25\x26\xd1\x35\x3b\xb0\xfd\x60\x7f\xa0\xf0\x7d\x45\x80\x81\x02\xe3\x8c\x66\xb6\xb5\xbf\xe0\x53\x03\x6b\x95\x6a\x96\x70\x1a\x8d\x02\x58\x8e\x7a\x7c\xc1\xf8\x4a\x3c\x0a\x3b\xa7\x80\xd5\xbb\x49\x4e\x86\x01\x75\x98\x9a\xb6\xec\x07\xd1\x35\x33\x71\x5c\xfb\x45\x84\xfd\x2a\x81\x86\xd7\x4b\xb7\x40\x17\x20\x6d\x94\x0f\x25\xfa\x7e\xc2\xde\xbe\x5a\x31\xcf\x5c\x23\x30", 256); syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x41045508, /*arg=*/0x200000000340ul); break; case 6: *(uint64_t*)0x200000000580 = 0x200000000480; *(uint64_t*)0x200000000588 = 0x8000; *(uint32_t*)0x200000000590 = 0x1800; *(uint32_t*)0x200000000594 = 1; *(uint32_t*)0x200000000598 = 3; syscall(__NR_setsockopt, /*fd=*/r[0], /*level=*/0x11b, /*opt=*/4, /*val=*/0x200000000580ul, /*len=*/0x20ul); break; case 7: *(uint64_t*)0x2000000005c0 = 4; syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x127d, /*arg=*/0x2000000005c0ul); break; case 8: *(uint32_t*)0x200000000604 = 0; *(uint32_t*)0x200000000608 = r[0]; *(uint32_t*)0x20000000060c = 0; syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0xc01864c2, /*arg=*/0x200000000600ul); break; case 9: *(uint32_t*)0x2000000006c0 = 0; syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0xc00464c9, /*arg=*/0x2000000006c0ul); break; case 10: memset((void*)0x200000000000, 255, 6); STORE_BY_BITMASK(uint8_t, , 0x200000000040, 0, 0, 2); STORE_BY_BITMASK(uint8_t, , 0x200000000040, 2, 2, 2); STORE_BY_BITMASK(uint8_t, , 0x200000000040, 0xb, 4, 4); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 0, 0, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 1, 1, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 0, 2, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 1, 3, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 1, 4, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 0, 5, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 0, 6, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 1, 7, 1); STORE_BY_BITMASK(uint16_t, , 0x200000000042, 2, 0, 15); STORE_BY_BITMASK(uint16_t, , 0x200000000043, 0, 7, 1); *(uint8_t*)0x200000000044 = 8; *(uint8_t*)0x200000000045 = 2; *(uint8_t*)0x200000000046 = 0x11; *(uint8_t*)0x200000000047 = 0; *(uint8_t*)0x200000000048 = 0; *(uint8_t*)0x200000000049 = 1; *(uint8_t*)0x20000000004a = 8; *(uint8_t*)0x20000000004b = 2; *(uint8_t*)0x20000000004c = 0x11; *(uint8_t*)0x20000000004d = 0; *(uint8_t*)0x20000000004e = 0; *(uint8_t*)0x20000000004f = 0; memset((void*)0x200000000050, 80, 6); STORE_BY_BITMASK(uint16_t, , 0x200000000056, 9, 0, 4); STORE_BY_BITMASK(uint16_t, , 0x200000000056, 0x5bb, 4, 12); STORE_BY_BITMASK(uint8_t, , 0x200000000058, 1, 0, 4); STORE_BY_BITMASK(uint8_t, , 0x200000000058, 1, 4, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000058, 1, 5, 2); STORE_BY_BITMASK(uint8_t, , 0x200000000058, 1, 7, 1); *(uint8_t*)0x200000000059 = 9; STORE_BY_BITMASK(uint16_t, , 0x20000000005a, 0, 0, 1); STORE_BY_BITMASK(uint16_t, , 0x20000000005a, 2, 1, 15); STORE_BY_BITMASK(uint8_t, , 0x20000000005c, 0, 0, 2); STORE_BY_BITMASK(uint8_t, , 0x20000000005c, 0, 2, 2); STORE_BY_BITMASK(uint8_t, , 0x20000000005c, 0, 4, 2); STORE_BY_BITMASK(uint8_t, , 0x20000000005c, 3, 6, 2); STORE_BY_BITMASK(uint8_t, , 0x20000000005d, 0, 0, 1); STORE_BY_BITMASK(uint8_t, , 0x20000000005d, 0, 1, 5); STORE_BY_BITMASK(uint8_t, , 0x20000000005d, 1, 6, 1); STORE_BY_BITMASK(uint8_t, , 0x20000000005d, 0, 7, 1); memcpy((void*)0x20000000005e, "\x05\x5b\xa7\x19\x28\xa7\x9f\x86\x25\x94\x2b\x8e\x22\xa6\x2e\x7d\x0e\xf5\xd2\x6a\xfb\x59\x23\xf0\xa1", 25); syz_80211_inject_frame(/*mac_addr=*/0x200000000000, /*buf=*/0x200000000040, /*buf_len=*/0x37); break; case 11: memcpy((void*)0x200000000080, "wlan0\000", 6); memcpy((void*)0x2000000000c0, "\xf2\x0f\x01\x43\x92\x29\x17\x2e\xc7\x63\x7d\x66\xe2\xf0\x75", 15); syz_80211_join_ibss(/*interface=*/0x200000000080, /*ssid=*/0x2000000000c0, /*ssid_len=*/0xf, /*join_mode=JOIN_IBSS_BG_NO_SCAN*/2); break; case 12: memcpy((void*)0x200000000100, "bpf_lsm_inode_getsecurity\000", 26); syz_btf_id_by_name(/*name=*/0x200000000100); break; case 13: memcpy((void*)0x200000000140, "\xff\x42\x7f\x0e\x46\x59\xab\x58\x93\xd3\xba\xdb\x31\xb3\xb1\xb8\x9d\xa5\x2b\x0f\x3d\x34\x89\xa1\x8a\x58\x37\xba\x6e\x04\xf2\x1c\xf0\x58\x1d\xe7\x94\x6c\x2e\x29\xad\xef\x18\x03\x6a\x10\xce\x36\x12\x50\xa5\x66\x70\x64\xb4\xd4\x56\xc6\x4c\x30\x7d\x63\xcf\xe3\x42\x2c\x3f\xaf\xd4\x50\x31\x5e\x83\x66", 74); memcpy((void*)0x200000000240, "\xb2\x01\xd1\x39\xa4\x34\x4e\x46\x3d\x89\x91\x3b\xee\x9c\x68\xaf\x3f\x34\x09\x0b\x9f\x62\x44\xaf\x88\xc8\xfe\x07\xce\x4f\xfe\x9b\x81\x21\x0d\xa0\xfc\x44\x55\x9d\x98\x5a\xd5\xbb\x1d\xc9\x67\x2c\xe4\xd1\xdf\x55\x4a\xaf\xb7\x80\x53\xf4", 58); res = -1; res = syz_clone(/*flags=CLONE_PIDFD*/0x1000, /*stack=*/0x200000000140, /*stack_len=*/0x4a, /*parentid=*/0x2000000001c0, /*childtid=*/0x200000000200, /*tls=*/0x200000000240); if (res != -1) r[1] = res; break; case 14: *(uint64_t*)0x200000000440 = 0x100400; *(uint64_t*)0x200000000448 = 0x200000000280; *(uint64_t*)0x200000000450 = 0x2000000002c0; *(uint64_t*)0x200000000458 = 0x200000000300; *(uint32_t*)0x200000000460 = 0x2a; *(uint64_t*)0x200000000468 = 0x200000000340; *(uint64_t*)0x200000000470 = 0x15; *(uint64_t*)0x200000000478 = 0x200000000380; *(uint64_t*)0x200000000480 = 0x200000000400; *(uint32_t*)0x200000000400 = r[1]; *(uint64_t*)0x200000000488 = 1; *(uint32_t*)0x200000000490 = -1; res = -1; res = syz_clone3(/*args=*/0x200000000440, /*size=*/0x58); if (res != -1) { r[2] = res; r[3] = *(uint32_t*)0x200000000280; r[4] = *(uint32_t*)0x2000000002c0; r[5] = *(uint32_t*)0x200000000300; } break; case 15: memcpy((void*)0x2000000004c0, "./file0\000", 8); syz_create_resource(/*file=*/0x2000000004c0); break; case 16: memcpy((void*)0x200000000740, "/dev/cuse\000", 10); res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x200000000740ul, /*flags=*/2, /*mode=*/0); if (res != -1) r[6] = res; break; case 17: *(uint32_t*)0x200000002a80 = 7; *(uint32_t*)0x200000002a84 = 4; *(uint32_t*)0x200000002a88 = r[5]; *(uint32_t*)0x200000002a90 = 0; *(uint64_t*)0x200000002a98 = 0x100000000; *(uint64_t*)0x200000002aa0 = 3; res = syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0xc0286405, /*arg=*/0x200000002a80ul); if (res != -1) r[7] = *(uint32_t*)0x200000002a90; break; case 18: *(uint32_t*)0x200000002b80 = 1; *(uint32_t*)0x200000002b84 = 0; *(uint32_t*)0x200000002b88 = 0xee00; *(uint32_t*)0x200000002b8c = 5; *(uint32_t*)0x200000002b90 = 9; *(uint32_t*)0x200000002b94 = 0x8c; *(uint16_t*)0x200000002b98 = 6; *(uint32_t*)0x200000002b9c = 0xe0000; *(uint64_t*)0x200000002ba0 = 3; *(uint64_t*)0x200000002ba8 = 6; *(uint64_t*)0x200000002bb0 = 0x2c54; *(uint32_t*)0x200000002bb8 = 0x7fffffff; *(uint32_t*)0x200000002bbc = 5; *(uint16_t*)0x200000002bc0 = 3; *(uint16_t*)0x200000002bc2 = 0; *(uint64_t*)0x200000002bc8 = 0x200000002ac0; memcpy((void*)0x200000002ac0, "\x34\xd1\x45\x92\x33\x0d\x2e\xff\xe2\xb2\x42\xce\x1c\x79\xf9\x7a\x73\x7d\xc0\xf7\x74\x5d\x84\xee\xc4\x69\x04\x8b\xa4\x77\x2d\x3c\xa2\xf3\x4e\x3a\x83\xb5\xed\xad\xf6\x55\x0e\x5b\x41\x2c\xf5\xee\x74\x9b\x33\x24\xb3\x00\x32\xad\x2a\xe1\x4c\xfa\x29\xef\x4e\xcf\x97\x41\x6f\xdc\x53\xd7\x3b\xb8\x0e\xa1\x39\xaa\xc1\xbf\x36\x4d\xdc\xbe\x74\x09\x34\x21\x55\xae\x12\x6f\x63\xd9\xe3\xab\x1d\x51\x04\xbe\xfd\xd9", 100); *(uint64_t*)0x200000002bd0 = 0x200000002b40; memcpy((void*)0x200000002b40, "\xe5\x50\x41\x3c\x2f\x46\x9c\x9e\xf0\x8e\xb7\x19\x3b\x0a\x24\x2e\x58\xbe\xfe\x01\x2a\xa8\x9d\x7c", 24); res = syscall(__NR_shmctl, /*shmid=*/8, /*cmd=*/2ul, /*buf=*/0x200000002b80ul); if (res != -1) r[8] = *(uint32_t*)0x200000002b88; break; case 19: res = syscall(__NR_setfsuid, /*uid=*/0xee01); if (res != -1) r[9] = res; break; case 20: res = syscall(__NR_getuid); if (res != -1) r[10] = res; break; case 21: res = syscall(__NR_fstat, /*fd=*/r[3], /*statbuf=*/0x200000002ec0ul); if (res != -1) { r[11] = *(uint32_t*)0x200000002ed8; r[12] = *(uint32_t*)0x200000002edc; } break; case 22: *(uint32_t*)0x200000002f40 = 9; *(uint32_t*)0x200000002f44 = 6; *(uint32_t*)0x200000002f48 = -1; *(uint32_t*)0x200000002f50 = 0xee01; *(uint64_t*)0x200000002f58 = 9; *(uint64_t*)0x200000002f60 = 8; res = syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0xc0286405, /*arg=*/0x200000002f40ul); if (res != -1) r[13] = *(uint32_t*)0x200000002f50; break; case 23: *(uint64_t*)0x200000002f80 = 1; *(uint32_t*)0x200000002f88 = r[3]; *(uint32_t*)0x200000002f90 = r[3]; *(uint64_t*)0x200000002f98 = 0; *(uint64_t*)0x200000002fa0 = 0; memset((void*)0x200000002fa8, 0, 16); *(uint64_t*)0x200000002fb8 = 0x100; *(uint16_t*)0x200000002fc0 = 6; *(uint16_t*)0x200000002fc2 = 4; *(uint32_t*)0x200000002fc4 = 0; *(uint32_t*)0x200000002fc8 = 0xee01; *(uint32_t*)0x200000002fcc = 4; *(uint32_t*)0x200000002fd0 = 2; *(uint64_t*)0x200000002fd8 = 0xe78bc90; *(uint64_t*)0x200000002fe0 = 0x9e350; *(uint32_t*)0x200000002fe8 = 0x10; *(uint64_t*)0x200000002ff0 = 4; *(uint32_t*)0x200000002ff8 = 7; *(uint64_t*)0x200000003000 = 0x3a83; *(uint32_t*)0x200000003008 = 0x80000000; *(uint64_t*)0x200000003010 = 0xff; *(uint32_t*)0x200000003018 = 8; *(uint32_t*)0x20000000301c = 7; *(uint32_t*)0x200000003020 = 7; *(uint32_t*)0x200000003024 = 5; *(uint16_t*)0x200000003028 = 0xd275; *(uint16_t*)0x20000000302a = 6; *(uint16_t*)0x20000000302c = 1; *(uint16_t*)0x20000000302e = 0xff74; *(uint16_t*)0x200000003030 = 5; memset((void*)0x200000003032, 0, 2); *(uint32_t*)0x200000003034 = 0xf0e; *(uint32_t*)0x200000003038 = 0x400; *(uint16_t*)0x20000000303c = 2; *(uint16_t*)0x20000000303e = 0x8001; res = syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0xc0c0586d, /*arg=*/0x200000002f80ul); if (res != -1) { r[14] = *(uint32_t*)0x200000002f88; r[15] = *(uint32_t*)0x200000002f90; r[16] = *(uint32_t*)0x200000002fc8; } break; case 24: *(uint32_t*)0x2000000030c0 = 0x80; *(uint32_t*)0x2000000030c4 = 0; *(uint32_t*)0x2000000030c8 = 0xee01; *(uint32_t*)0x2000000030cc = 8; *(uint32_t*)0x2000000030d0 = 3; *(uint32_t*)0x2000000030d4 = 3; *(uint16_t*)0x2000000030d8 = 6; *(uint64_t*)0x2000000030e0 = 0x200000003040; *(uint8_t*)0x200000003040 = 0xf; *(uint64_t*)0x2000000030e8 = 0x200000003080; *(uint8_t*)0x200000003080 = 0x29; *(uint64_t*)0x2000000030f0 = 0xfffffffffffff801; *(uint64_t*)0x2000000030f8 = 0x6b4c; *(uint64_t*)0x200000003100 = 0; *(uint64_t*)0x200000003108 = 3; *(uint64_t*)0x200000003110 = 0x800; *(uint16_t*)0x200000003118 = 2; *(uint16_t*)0x20000000311a = 0xbf09; *(uint16_t*)0x20000000311c = 3; *(uint32_t*)0x200000003120 = r[2]; *(uint32_t*)0x200000003124 = r[4]; res = syscall(__NR_msgctl, /*msqid=*/2, /*cmd=*/0ul, /*buf=*/0x2000000030c0ul); if (res != -1) r[17] = *(uint32_t*)0x2000000030c4; break; case 25: *(uint32_t*)0x200000003140 = 0xb407; *(uint32_t*)0x200000003144 = 0xee01; *(uint64_t*)0x200000003148 = 8; *(uint64_t*)0x200000003150 = 8; res = syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0x4018aee2, /*arg=*/0x200000003140ul); if (res != -1) r[18] = *(uint32_t*)0x200000003144; break; case 26: memcpy((void*)0x200000003180, "./file0\000", 8); *(uint32_t*)0x2000000031c0 = 8; *(uint32_t*)0x2000000031c4 = 0xfffffffe; *(uint64_t*)0x2000000031c8 = 0; *(uint32_t*)0x2000000031d0 = 0xa; *(uint32_t*)0x2000000031d4 = 0; *(uint32_t*)0x2000000031d8 = 0xee00; *(uint16_t*)0x2000000031dc = 0xf; *(uint16_t*)0x2000000031de = 0x5d3e; *(uint64_t*)0x2000000031e0 = 5; *(uint64_t*)0x2000000031e8 = 0x10; *(uint64_t*)0x2000000031f0 = 0xff89; *(uint64_t*)0x2000000031f8 = 0x100; *(uint64_t*)0x200000003200 = 0xf; *(uint32_t*)0x200000003208 = 8; *(uint32_t*)0x20000000320c = 0; *(uint64_t*)0x200000003210 = 0xfff; *(uint32_t*)0x200000003218 = 2; *(uint32_t*)0x20000000321c = 0; *(uint64_t*)0x200000003220 = 3; *(uint32_t*)0x200000003228 = 0x7fff; *(uint32_t*)0x20000000322c = 0; *(uint64_t*)0x200000003230 = -1; *(uint32_t*)0x200000003238 = 9; *(uint32_t*)0x20000000323c = 0; *(uint32_t*)0x200000003240 = 0; *(uint32_t*)0x200000003244 = 3; *(uint32_t*)0x200000003248 = 7; *(uint32_t*)0x20000000324c = 0x8d6; *(uint64_t*)0x200000003250 = 0x383d; *(uint32_t*)0x200000003258 = 4; *(uint32_t*)0x20000000325c = 0xb0d4; *(uint64_t*)0x200000003260 = 0x503; *(uint32_t*)0x200000003268 = 2; *(uint32_t*)0x20000000326c = 0; *(uint32_t*)0x200000003270 = 5; *(uint32_t*)0x200000003274 = 2; *(uint64_t*)0x200000003278 = 0xfffffffffffffffb; *(uint64_t*)0x200000003280 = 0xff; *(uint64_t*)0x200000003288 = 3; *(uint64_t*)0x200000003290 = 0x259; *(uint64_t*)0x200000003298 = 0xbe9; *(uint64_t*)0x2000000032a0 = 0xff; *(uint64_t*)0x2000000032a8 = 6; *(uint64_t*)0x2000000032b0 = 0x800; *(uint64_t*)0x2000000032b8 = 9; res = syscall(__NR_statx, /*dfd=*/0xffffff9c, /*filename=*/0x200000003180ul, /*flags=*/4, /*mask=*/2, /*buffer=*/0x2000000031c0ul); if (res != -1) r[19] = *(uint32_t*)0x2000000031d4; break; case 27: *(uint32_t*)0x200000004300 = 5; *(uint32_t*)0x200000004304 = 0xee00; *(uint32_t*)0x200000004308 = 0xee00; *(uint32_t*)0x20000000430c = 3; *(uint32_t*)0x200000004310 = 0x7ff; *(uint32_t*)0x200000004314 = 2; *(uint16_t*)0x200000004318 = 5; *(uint32_t*)0x20000000431c = 2; *(uint64_t*)0x200000004320 = 0x401; *(uint64_t*)0x200000004328 = 3; *(uint64_t*)0x200000004330 = 0xfffffffffffffffe; *(uint32_t*)0x200000004338 = r[1]; *(uint32_t*)0x20000000433c = r[4]; *(uint16_t*)0x200000004340 = 0xfffe; *(uint16_t*)0x200000004342 = 0; *(uint64_t*)0x200000004348 = 0x2000000032c0; memcpy((void*)0x2000000032c0, 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4096); *(uint64_t*)0x200000004350 = 0x2000000042c0; memcpy((void*)0x2000000042c0, "\x14\xdc\x2c\x36\xc1\xa4\x73\x0f\x33\xf0\xa4\x77\x56\xb4\x37\x79\x2e\x9a\xc7\x8f\x74\x2f\x82\x1e\x32\x83\x41\xe0\x2b", 29); res = syscall(__NR_shmctl, /*shmid=*/3, /*cmd=*/1ul, /*buf=*/0x200000004300ul); if (res != -1) { r[20] = *(uint32_t*)0x200000004308; r[21] = *(uint32_t*)0x20000000433c; } break; case 28: memcpy((void*)0x200000004600, "./file0\000", 8); res = syscall(__NR_newfstatat, /*dfd=*/0xffffffffffffff9cul, /*file=*/0x200000004600ul, /*statbuf=*/0x200000004640ul, /*flag=*/0ul); if (res != -1) r[22] = *(uint32_t*)0x200000004658; break; case 29: res = syscall(__NR_fstat, /*fd=*/r[3], /*statbuf=*/0x2000000046c0ul); if (res != -1) { r[23] = *(uint32_t*)0x2000000046d8; r[24] = *(uint32_t*)0x2000000046dc; } break; case 30: *(uint32_t*)0x2000000058c0 = -1; *(uint32_t*)0x2000000058c4 = 0xee00; *(uint32_t*)0x2000000058c8 = -1; *(uint32_t*)0x2000000058cc = 2; *(uint32_t*)0x2000000058d0 = 9; *(uint32_t*)0x2000000058d4 = 2; *(uint16_t*)0x2000000058d8 = 4; *(uint32_t*)0x2000000058dc = 6; *(uint64_t*)0x2000000058e0 = 4; *(uint64_t*)0x2000000058e8 = 4; *(uint64_t*)0x2000000058f0 = 1; *(uint32_t*)0x2000000058f8 = 0; *(uint32_t*)0x2000000058fc = r[4]; *(uint16_t*)0x200000005900 = 0x40; *(uint16_t*)0x200000005902 = 0; *(uint64_t*)0x200000005908 = 0x200000004840; memcpy((void*)0x200000004840, "\xbe\x99\x9e\xee\x25\x89\x59\xe9\x3a\x2a\xa6\x8d\xc2\xcb\x1d\x93\xb8\x19\xd2\xb9\xd9\xe6\x78\xe2\xe2\x50\x6d\x54\x51\x0e\x92\x07\x28\xd7\x58\x15\xbb\x80\x27\xe6\xa0\x21\xfe\xbb\x8f\x09\x96\xf8\xad\xd6\x87\x7b\x74\xce\x5e\xac\xe7\x45\x04\xcf\x3a\x4f\x3a\xc4\x6a\x5a\x59\x40\x03\x42\x35\x19\x40\xbf\xb8\x76\x7d\xd9\x95\x5c\x9e\x9a\x99\x41", 84); *(uint64_t*)0x200000005910 = 0x2000000048c0; memcpy((void*)0x2000000048c0, 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4096); res = syscall(__NR_shmctl, /*shmid=*/0, /*cmd=*/7, /*buf=*/0x2000000058c0ul); if (res != -1) r[25] = *(uint32_t*)0x2000000058c4; break; case 31: memcpy((void*)0x200000005940, "./file0\000", 8); *(uint64_t*)0x200000005980 = 0x100000000; *(uint64_t*)0x200000005988 = 0x7d80; *(uint64_t*)0x200000005990 = 1; *(uint32_t*)0x200000005998 = 0x40; *(uint32_t*)0x20000000599c = -1; *(uint32_t*)0x2000000059a0 = 0; *(uint32_t*)0x2000000059a4 = 0; *(uint64_t*)0x2000000059a8 = 7; *(uint64_t*)0x2000000059b0 = 0xfffffffffffffffb; *(uint64_t*)0x2000000059b8 = 0; *(uint64_t*)0x2000000059c0 = 2; *(uint64_t*)0x2000000059c8 = 0xe6; *(uint64_t*)0x2000000059d0 = 2; *(uint64_t*)0x2000000059d8 = 4; *(uint64_t*)0x2000000059e0 = 0xa03f; *(uint64_t*)0x2000000059e8 = 0x10; *(uint64_t*)0x2000000059f0 = 7; memset((void*)0x2000000059f8, 0, 24); res = syscall(__NR_lstat, /*filename=*/0x200000005940ul, /*statbuf=*/0x200000005980ul); if (res != -1) { r[26] = *(uint32_t*)0x20000000599c; r[27] = *(uint32_t*)0x2000000059a0; } break; case 32: memcpy((void*)0x200000000780, 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8192); *(uint64_t*)0x200000005b80 = 0x200000002780; *(uint32_t*)0x200000002780 = 0x50; *(uint32_t*)0x200000002784 = 0xffffffda; *(uint64_t*)0x200000002788 = 7; *(uint32_t*)0x200000002790 = 7; *(uint32_t*)0x200000002794 = 0x2d; *(uint32_t*)0x200000002798 = 8; *(uint32_t*)0x20000000279c = 0x1020000; *(uint16_t*)0x2000000027a0 = 0xfffc; *(uint16_t*)0x2000000027a2 = 0x401; *(uint32_t*)0x2000000027a4 = 0x12; *(uint32_t*)0x2000000027a8 = 6; *(uint16_t*)0x2000000027ac = 0; *(uint16_t*)0x2000000027ae = 0; *(uint32_t*)0x2000000027b0 = 0x40; *(uint32_t*)0x2000000027b4 = 0xce; memset((void*)0x2000000027b8, 0, 24); *(uint64_t*)0x200000005b88 = 0x200000002800; *(uint32_t*)0x200000002800 = 0x18; *(uint32_t*)0x200000002804 = 0; *(uint64_t*)0x200000002808 = 6; *(uint64_t*)0x200000002810 = 0xbb; *(uint64_t*)0x200000005b90 = 0x200000002840; *(uint32_t*)0x200000002840 = 0x18; *(uint32_t*)0x200000002844 = 0; *(uint64_t*)0x200000002848 = 1; *(uint64_t*)0x200000002850 = 5; *(uint64_t*)0x200000005b98 = 0x200000002880; *(uint32_t*)0x200000002880 = 0x18; *(uint32_t*)0x200000002884 = 0xfffffff5; *(uint64_t*)0x200000002888 = 4; *(uint32_t*)0x200000002890 = 0; *(uint32_t*)0x200000002894 = 0; *(uint64_t*)0x200000005ba0 = 0x2000000028c0; *(uint32_t*)0x2000000028c0 = 0x18; *(uint32_t*)0x2000000028c4 = 0xfffffffe; *(uint64_t*)0x2000000028c8 = 3; *(uint32_t*)0x2000000028d0 = 7; *(uint32_t*)0x2000000028d4 = 0; *(uint64_t*)0x200000005ba8 = 0x200000002900; *(uint32_t*)0x200000002900 = 0x28; *(uint32_t*)0x200000002904 = 0; *(uint64_t*)0x200000002908 = 0x300000000000; *(uint64_t*)0x200000002910 = 1; *(uint64_t*)0x200000002918 = 8; *(uint32_t*)0x200000002920 = 0; *(uint32_t*)0x200000002924 = r[1]; *(uint64_t*)0x200000005bb0 = 0x200000002940; *(uint32_t*)0x200000002940 = 0x60; *(uint32_t*)0x200000002944 = 0; *(uint64_t*)0x200000002948 = 0xc; *(uint64_t*)0x200000002950 = 0; *(uint64_t*)0x200000002958 = 0xff; *(uint64_t*)0x200000002960 = 2; *(uint64_t*)0x200000002968 = 0x41; *(uint64_t*)0x200000002970 = 0x40; *(uint32_t*)0x200000002978 = 6; *(uint32_t*)0x20000000297c = 0x8dd; *(uint32_t*)0x200000002980 = 5; *(uint32_t*)0x200000002984 = 0; memset((void*)0x200000002988, 0, 24); *(uint64_t*)0x200000005bb8 = 0x2000000029c0; *(uint32_t*)0x2000000029c0 = 0x18; *(uint32_t*)0x2000000029c4 = 0xffffffda; *(uint64_t*)0x2000000029c8 = 9; *(uint32_t*)0x2000000029d0 = 5; *(uint32_t*)0x2000000029d4 = 0; *(uint64_t*)0x200000005bc0 = 0x200000002a00; *(uint32_t*)0x200000002a00 = 0x16; *(uint32_t*)0x200000002a04 = 0; *(uint64_t*)0x200000002a08 = 6; memset((void*)0x200000002a10, 255, 6); *(uint64_t*)0x200000005bc8 = 0x200000002a40; *(uint32_t*)0x200000002a40 = 0x20; *(uint32_t*)0x200000002a44 = 0; *(uint64_t*)0x200000002a48 = 0; *(uint64_t*)0x200000002a50 = 0; *(uint32_t*)0x200000002a58 = 0x1e; *(uint32_t*)0x200000002a5c = 0; *(uint64_t*)0x200000005bd0 = 0x200000002c00; *(uint32_t*)0x200000002c00 = 0x78; *(uint32_t*)0x200000002c04 = 0xfffffffe; *(uint64_t*)0x200000002c08 = 3; *(uint64_t*)0x200000002c10 = 8; *(uint32_t*)0x200000002c18 = 6; *(uint32_t*)0x200000002c1c = 0; *(uint64_t*)0x200000002c20 = 0; *(uint64_t*)0x200000002c28 = 8; *(uint64_t*)0x200000002c30 = 2; *(uint64_t*)0x200000002c38 = 8; *(uint64_t*)0x200000002c40 = 0x80; *(uint64_t*)0x200000002c48 = 5; *(uint32_t*)0x200000002c50 = 0x3482; *(uint32_t*)0x200000002c54 = 0xa246; *(uint32_t*)0x200000002c58 = 0x80000000; *(uint32_t*)0x200000002c5c = 0x4000; *(uint32_t*)0x200000002c60 = 0x3e08; *(uint32_t*)0x200000002c64 = r[7]; *(uint32_t*)0x200000002c68 = r[8]; *(uint32_t*)0x200000002c6c = 0x7f; *(uint32_t*)0x200000002c70 = 3; *(uint32_t*)0x200000002c74 = 0; *(uint64_t*)0x200000005bd8 = 0x200000002c80; *(uint32_t*)0x200000002c80 = 0x90; *(uint32_t*)0x200000002c84 = 0xffffffda; *(uint64_t*)0x200000002c88 = 2; *(uint64_t*)0x200000002c90 = 6; *(uint64_t*)0x200000002c98 = 0; *(uint64_t*)0x200000002ca0 = 2; *(uint64_t*)0x200000002ca8 = 8; *(uint32_t*)0x200000002cb0 = 0xfffffffc; *(uint32_t*)0x200000002cb4 = 9; *(uint64_t*)0x200000002cb8 = 1; *(uint64_t*)0x200000002cc0 = 3; *(uint64_t*)0x200000002cc8 = 2; *(uint64_t*)0x200000002cd0 = 5; *(uint64_t*)0x200000002cd8 = 0x761; *(uint64_t*)0x200000002ce0 = 7; *(uint32_t*)0x200000002ce8 = 0x58d95c3d; *(uint32_t*)0x200000002cec = 7; *(uint32_t*)0x200000002cf0 = 7; *(uint32_t*)0x200000002cf4 = 0x8000; *(uint32_t*)0x200000002cf8 = 8; *(uint32_t*)0x200000002cfc = r[9]; *(uint32_t*)0x200000002d00 = 0xee01; *(uint32_t*)0x200000002d04 = 0; *(uint32_t*)0x200000002d08 = 0x400; *(uint32_t*)0x200000002d0c = 0; *(uint64_t*)0x200000005be0 = 0x200000002d40; *(uint32_t*)0x200000002d40 = 0x158; *(uint32_t*)0x200000002d44 = 0; *(uint64_t*)0x200000002d48 = 0x8000000000000001; *(uint64_t*)0x200000002d50 = 0; *(uint64_t*)0x200000002d58 = 0; *(uint32_t*)0x200000002d60 = 0; *(uint32_t*)0x200000002d64 = 5; *(uint64_t*)0x200000002d68 = 2; *(uint64_t*)0x200000002d70 = 0x291; *(uint32_t*)0x200000002d78 = 3; *(uint32_t*)0x200000002d7c = 0; memcpy((void*)0x200000002d80, "a-$", 3); *(uint64_t*)0x200000002d88 = 6; *(uint64_t*)0x200000002d90 = 1; *(uint32_t*)0x200000002d98 = 0x1a; *(uint32_t*)0x200000002d9c = 0x5df9; memcpy((void*)0x200000002da0, "bpf_lsm_inode_getsecurity\000", 26); *(uint64_t*)0x200000002dc0 = 5; *(uint64_t*)0x200000002dc8 = 4; *(uint32_t*)0x200000002dd0 = 0; *(uint32_t*)0x200000002dd4 = 0; *(uint64_t*)0x200000002dd8 = 3; *(uint64_t*)0x200000002de0 = 2; *(uint32_t*)0x200000002de8 = 7; *(uint32_t*)0x200000002dec = 0x615d; memcpy((void*)0x200000002df0, "]F,[@%(", 7); *(uint64_t*)0x200000002df8 = 3; *(uint64_t*)0x200000002e00 = 4; *(uint32_t*)0x200000002e08 = 2; *(uint32_t*)0x200000002e0c = 5; memcpy((void*)0x200000002e10, "#*", 2); *(uint64_t*)0x200000002e18 = 6; *(uint64_t*)0x200000002e20 = 0xc; *(uint32_t*)0x200000002e28 = 1; *(uint32_t*)0x200000002e2c = 0x200; memset((void*)0x200000002e30, 33, 1); *(uint64_t*)0x200000002e38 = 2; *(uint64_t*)0x200000002e40 = 1; *(uint32_t*)0x200000002e48 = 3; *(uint32_t*)0x200000002e4c = 0xffff; memcpy((void*)0x200000002e50, "%[*", 3); *(uint64_t*)0x200000002e58 = 2; *(uint64_t*)0x200000002e60 = 1; *(uint32_t*)0x200000002e68 = 6; *(uint32_t*)0x200000002e6c = 0x10001; memset((void*)0x200000002e70, 187, 6); *(uint64_t*)0x200000002e78 = 2; *(uint64_t*)0x200000002e80 = 9; *(uint32_t*)0x200000002e88 = 3; *(uint32_t*)0x200000002e8c = 3; memcpy((void*)0x200000002e90, "\\$&", 3); *(uint64_t*)0x200000005be8 = 0x200000004380; *(uint32_t*)0x200000004380 = 0x280; *(uint32_t*)0x200000004384 = 0; *(uint64_t*)0x200000004388 = 7; *(uint64_t*)0x200000004390 = 1; *(uint64_t*)0x200000004398 = 2; *(uint64_t*)0x2000000043a0 = 0x9b; *(uint64_t*)0x2000000043a8 = 0xa; *(uint32_t*)0x2000000043b0 = 0x40; *(uint32_t*)0x2000000043b4 = 0x2b; *(uint64_t*)0x2000000043b8 = 1; *(uint64_t*)0x2000000043c0 = 0; *(uint64_t*)0x2000000043c8 = 0xf5; *(uint64_t*)0x2000000043d0 = 7; *(uint64_t*)0x2000000043d8 = 8; *(uint64_t*)0x2000000043e0 = 7; *(uint32_t*)0x2000000043e8 = 5; *(uint32_t*)0x2000000043ec = 9; *(uint32_t*)0x2000000043f0 = 0x1b; *(uint32_t*)0x2000000043f4 = 0xa000; *(uint32_t*)0x2000000043f8 = 4; *(uint32_t*)0x2000000043fc = r[10]; *(uint32_t*)0x200000004400 = r[12]; *(uint32_t*)0x200000004404 = 4; *(uint32_t*)0x200000004408 = 0x10000; *(uint32_t*)0x20000000440c = 0; *(uint64_t*)0x200000004410 = 4; *(uint64_t*)0x200000004418 = 6; *(uint32_t*)0x200000004420 = 0; *(uint32_t*)0x200000004424 = 0x7f; *(uint64_t*)0x200000004428 = 1; *(uint64_t*)0x200000004430 = 0; *(uint64_t*)0x200000004438 = 9; *(uint64_t*)0x200000004440 = 4; *(uint32_t*)0x200000004448 = 9; *(uint32_t*)0x20000000444c = 0x101; *(uint64_t*)0x200000004450 = 0; *(uint64_t*)0x200000004458 = 0x80; *(uint64_t*)0x200000004460 = 0x80000001; *(uint64_t*)0x200000004468 = 8; *(uint64_t*)0x200000004470 = 0x7fffffffffffffff; *(uint64_t*)0x200000004478 = 0xc14; *(uint32_t*)0x200000004480 = 7; *(uint32_t*)0x200000004484 = 2; *(uint32_t*)0x200000004488 = 5; *(uint32_t*)0x20000000448c = 0x1000; *(uint32_t*)0x200000004490 = 7; *(uint32_t*)0x200000004494 = r[13]; *(uint32_t*)0x200000004498 = r[16]; *(uint32_t*)0x20000000449c = 7; *(uint32_t*)0x2000000044a0 = 3; *(uint32_t*)0x2000000044a4 = 0; *(uint64_t*)0x2000000044a8 = 1; *(uint64_t*)0x2000000044b0 = 0x8000000000000000; *(uint32_t*)0x2000000044b8 = 0; *(uint32_t*)0x2000000044bc = 9; *(uint64_t*)0x2000000044c0 = 3; *(uint64_t*)0x2000000044c8 = 1; *(uint64_t*)0x2000000044d0 = 7; *(uint64_t*)0x2000000044d8 = 3; *(uint32_t*)0x2000000044e0 = 0x10000; *(uint32_t*)0x2000000044e4 = 0xfff; *(uint64_t*)0x2000000044e8 = 6; *(uint64_t*)0x2000000044f0 = 3; *(uint64_t*)0x2000000044f8 = 4; *(uint64_t*)0x200000004500 = 0xffffffff; *(uint64_t*)0x200000004508 = 5; *(uint64_t*)0x200000004510 = 1; *(uint32_t*)0x200000004518 = 0xcf; *(uint32_t*)0x20000000451c = 5; *(uint32_t*)0x200000004520 = 2; *(uint32_t*)0x200000004524 = 0x3000; *(uint32_t*)0x200000004528 = 0xf; *(uint32_t*)0x20000000452c = r[17]; *(uint32_t*)0x200000004530 = r[18]; *(uint32_t*)0x200000004534 = 0xdda; *(uint32_t*)0x200000004538 = 0x800; *(uint32_t*)0x20000000453c = 0; *(uint64_t*)0x200000004540 = 0; *(uint64_t*)0x200000004548 = 0x480; *(uint32_t*)0x200000004550 = 1; *(uint32_t*)0x200000004554 = 7; memset((void*)0x200000004558, 39, 1); *(uint64_t*)0x200000004560 = 3; *(uint64_t*)0x200000004568 = 0; *(uint64_t*)0x200000004570 = 6; *(uint64_t*)0x200000004578 = 6; *(uint32_t*)0x200000004580 = 0xae90; *(uint32_t*)0x200000004584 = 0x7fff; *(uint64_t*)0x200000004588 = 5; *(uint64_t*)0x200000004590 = 2; *(uint64_t*)0x200000004598 = 0xffff; *(uint64_t*)0x2000000045a0 = 0xb6; *(uint64_t*)0x2000000045a8 = 9; *(uint64_t*)0x2000000045b0 = 8; *(uint32_t*)0x2000000045b8 = 0x200; *(uint32_t*)0x2000000045bc = 3; *(uint32_t*)0x2000000045c0 = 6; *(uint32_t*)0x2000000045c4 = 0x6000; *(uint32_t*)0x2000000045c8 = 0xfffffff7; *(uint32_t*)0x2000000045cc = r[19]; *(uint32_t*)0x2000000045d0 = r[20]; *(uint32_t*)0x2000000045d4 = 4; *(uint32_t*)0x2000000045d8 = 6; *(uint32_t*)0x2000000045dc = 0; *(uint64_t*)0x2000000045e0 = 0; *(uint64_t*)0x2000000045e8 = 3; *(uint32_t*)0x2000000045f0 = 6; *(uint32_t*)0x2000000045f4 = 0xfffffffd; memcpy((void*)0x2000000045f8, "wlan0\000", 6); *(uint64_t*)0x200000005bf0 = 0x200000004740; *(uint32_t*)0x200000004740 = 0xa0; *(uint32_t*)0x200000004744 = 0xfffffffe; *(uint64_t*)0x200000004748 = 0x7fff; *(uint64_t*)0x200000004750 = 1; *(uint64_t*)0x200000004758 = 2; *(uint64_t*)0x200000004760 = 8; *(uint64_t*)0x200000004768 = 0x8001; *(uint32_t*)0x200000004770 = 0x9000; *(uint32_t*)0x200000004774 = 0; *(uint64_t*)0x200000004778 = 3; *(uint64_t*)0x200000004780 = 4; *(uint64_t*)0x200000004788 = 0x4283; *(uint64_t*)0x200000004790 = 6; *(uint64_t*)0x200000004798 = 7; *(uint64_t*)0x2000000047a0 = 1; *(uint32_t*)0x2000000047a8 = 4; *(uint32_t*)0x2000000047ac = 0x8000; *(uint32_t*)0x2000000047b0 = 0x7f; *(uint32_t*)0x2000000047b4 = 0x2000; *(uint32_t*)0x2000000047b8 = 0xa; *(uint32_t*)0x2000000047bc = r[22]; *(uint32_t*)0x2000000047c0 = r[24]; *(uint32_t*)0x2000000047c4 = 2; *(uint32_t*)0x2000000047c8 = 9; *(uint32_t*)0x2000000047cc = 0; *(uint64_t*)0x2000000047d0 = 0; *(uint32_t*)0x2000000047d8 = 0; *(uint32_t*)0x2000000047dc = 0; *(uint64_t*)0x200000005bf8 = 0x200000004800; *(uint32_t*)0x200000004800 = 0x20; *(uint32_t*)0x200000004804 = 0; *(uint64_t*)0x200000004808 = 0xa; *(uint32_t*)0x200000004810 = 8; *(uint32_t*)0x200000004814 = 0; *(uint32_t*)0x200000004818 = 0; *(uint32_t*)0x20000000481c = 0; *(uint64_t*)0x200000005c00 = 0x200000005a40; *(uint32_t*)0x200000005a40 = 0x130; *(uint32_t*)0x200000005a44 = 0; *(uint64_t*)0x200000005a48 = 0x800; *(uint64_t*)0x200000005a50 = 0x10000000; *(uint32_t*)0x200000005a58 = 9; *(uint32_t*)0x200000005a5c = 0; memset((void*)0x200000005a60, 0, 16); *(uint32_t*)0x200000005a70 = 4; *(uint32_t*)0x200000005a74 = 0xfffffff9; *(uint64_t*)0x200000005a78 = 8; *(uint32_t*)0x200000005a80 = 0xd; *(uint32_t*)0x200000005a84 = r[25]; *(uint32_t*)0x200000005a88 = r[27]; *(uint16_t*)0x200000005a8c = 0x4000; memset((void*)0x200000005a8e, 0, 2); *(uint64_t*)0x200000005a90 = 0xe; *(uint64_t*)0x200000005a98 = 1; *(uint64_t*)0x200000005aa0 = 9; *(uint64_t*)0x200000005aa8 = 4; *(uint64_t*)0x200000005ab0 = 0x75; *(uint32_t*)0x200000005ab8 = 0x10; *(uint32_t*)0x200000005abc = 0; *(uint64_t*)0x200000005ac0 = 0; *(uint32_t*)0x200000005ac8 = 0x2a; *(uint32_t*)0x200000005acc = 0; *(uint64_t*)0x200000005ad0 = 4; *(uint32_t*)0x200000005ad8 = 0x647; *(uint32_t*)0x200000005adc = 0; *(uint64_t*)0x200000005ae0 = 8; *(uint32_t*)0x200000005ae8 = 0xfffffffa; *(uint32_t*)0x200000005aec = 0; *(uint32_t*)0x200000005af0 = 4; *(uint32_t*)0x200000005af4 = 9; *(uint32_t*)0x200000005af8 = 0xf1; *(uint32_t*)0x200000005afc = 7; memset((void*)0x200000005b00, 0, 112); syz_fuse_handle_req(/*fd=*/r[6], /*buf=*/0x200000000780, /*len=*/0x2000, /*res=*/0x200000005b80); break; case 33: res = syscall(__NR_socket, /*domain=*/0x10ul, /*type=*/3ul, /*proto=*/0x10); if (res != -1) r[28] = res; break; case 34: memcpy((void*)0x200000005c40, "SEG6\000", 5); syz_genetlink_get_family_id(/*name=*/0x200000005c40, /*fd=*/r[28]); break; case 35: syz_init_net_socket(/*domain=*/0x24, /*type=*/2, /*proto=*/0); break; case 36: res = -1; res = syz_io_uring_complete(/*ring_ptr=*/0); if (res != -1) r[29] = res; break; case 37: *(uint32_t*)0x200000005c84 = 0x9c5d; *(uint32_t*)0x200000005c88 = 2; *(uint32_t*)0x200000005c8c = 1; *(uint32_t*)0x200000005c90 = 0x253; *(uint32_t*)0x200000005c98 = r[15]; memset((void*)0x200000005c9c, 0, 12); res = -1; res = syz_io_uring_setup(/*entries=*/0x19f7, /*params=*/0x200000005c80, /*ring_ptr=*/0x200000005d00, /*sqes_ptr=*/0x200000005d40); if (res != -1) { r[30] = *(uint64_t*)0x200000005d00; r[31] = *(uint64_t*)0x200000005d40; } break; case 38: *(uint8_t*)0x200000005dc0 = 0xb; *(uint8_t*)0x200000005dc1 = 0x28; *(uint16_t*)0x200000005dc2 = 0; *(uint32_t*)0x200000005dc4 = 0; *(uint64_t*)0x200000005dc8 = 3; *(uint64_t*)0x200000005dd0 = 0x200000005d80; *(uint64_t*)0x200000005d80 = 0; *(uint64_t*)0x200000005d88 = 0; *(uint32_t*)0x200000005dd8 = 1; *(uint32_t*)0x200000005ddc = 0x10; *(uint64_t*)0x200000005de0 = 1; *(uint16_t*)0x200000005de8 = 0; *(uint16_t*)0x200000005dea = 0; memset((void*)0x200000005dec, 0, 20); syz_io_uring_submit(/*ring_ptr=*/r[30], /*sqes_ptr=*/r[31], /*sqe=*/0x200000005dc0); break; case 39: res = -1; res = syz_kvm_setup_syzos_vm(/*fd=*/r[15], /*usermem=*/0x200000bff000); if (res != -1) r[32] = res; break; case 40: *(uint64_t*)0x200000005e80 = 0; *(uint64_t*)0x200000005e88 = 0x200000005e00; *(uint64_t*)0x200000005e00 = 0x12c; *(uint64_t*)0x200000005e08 = 0x18; *(uint64_t*)0x200000005e10 = 0; *(uint64_t*)0x200000005e18 = 0; *(uint64_t*)0x200000005e20 = 0x18; *(uint64_t*)0x200000005e28 = 4; *(uint64_t*)0x200000005e30 = 0x12d; *(uint64_t*)0x200000005e38 = 0x18; *(uint64_t*)0x200000005e40 = 2; *(uint64_t*)0x200000005e90 = 0x48; syz_kvm_add_vcpu(/*vm=*/r[32], /*text=*/0x200000005e80); break; case 41: *(uint64_t*)0x200000006100 = 0; *(uint64_t*)0x200000006108 = 0x200000005ec0; memcpy((void*)0x200000005ec0, 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560); *(uint64_t*)0x200000006110 = 0x230; *(uint64_t*)0x200000006140 = 1; *(uint64_t*)0x200000006148 = 7; syz_kvm_setup_cpu(/*fd=*/r[14], /*cpufd=*/r[29], /*usermem=*/0x200000c37000, /*text=*/0x200000006100, /*ntext=*/1, /*flags=KVM_SETUP_PPC64_LE*/1, /*opts=*/0x200000006140, /*nopt=*/1); break; case 42: syz_kvm_setup_syzos_vm(/*fd=*/r[29], /*usermem=*/0x200000c00000); break; case 43: *(uint32_t*)0x200000006180 = 0; syz_memcpy_off(/*ring_ptr=*/r[30], /*flag_off=SQ_FLAGS_OFFSET*/0x114, /*src=*/0x200000006180, /*src_off=*/0, /*nbytes=*/4); break; case 44: *(uint64_t*)0x200000006240 = 5; res = syscall(__NR_socketcall, /*call=*/1ul, /*args=*/0x200000006240ul); if (res != -1) r[33] = res; break; case 45: *(uint32_t*)0x200000006340 = 0xfffffffa; *(uint32_t*)0x200000006344 = r[11]; *(uint32_t*)0x200000006348 = r[27]; *(uint32_t*)0x20000000634c = 3; *(uint32_t*)0x200000006350 = 0xffff; *(uint32_t*)0x200000006354 = 0xe6b; *(uint16_t*)0x200000006358 = 7; *(uint32_t*)0x20000000635c = 0; *(uint64_t*)0x200000006360 = 0x357b; *(uint64_t*)0x200000006368 = 3; *(uint64_t*)0x200000006370 = 0x8000000000000000; *(uint32_t*)0x200000006378 = 0x74; *(uint32_t*)0x20000000637c = r[21]; *(uint16_t*)0x200000006380 = 0xc0b; *(uint16_t*)0x200000006382 = 0; *(uint64_t*)0x200000006388 = 0x200000006280; memcpy((void*)0x200000006280, "\x70\x10\x15\x9f\x68\xd5\xae\x90\x71\x37\xfa\x70\xd2\x86\xa1\x8b\xa4\x83\x48\xf8\x8d\x1f\xa0\x97\xcf\xe8\x2b\xb9\x55\x9e\x66\xc9\x7b\x4c\xcf\x3a\xcd\x9c\xe2\x40\x54\x49\x07\xf4\x53\x81\x70\xe4\x5e\x0c\x6d\xe8\xad\xfb\x6a\xe9\x4e\xd4\x4b\x61\x6a\x63\x73\x78\x14\xf1\x89\x44\x73\xd9\x51\x9f\x21\x30\xe8\xa0\xe0\x61\xc9\x6e\x46\xa9\x9a\x53\x16\xe4\x6b\x6b\x46\x13\x48\xbb\x03\xdd\xda\xd7\x06\x75\xbc\xda\x59\x21\xbd\xb5\x03\x8c\xc7\xdc\xad\xe7\xba\x3e\x10\x6c\xf3\x15\xe2\xad\x48\x81\x8a\x62\xc7", 123); *(uint64_t*)0x200000006390 = 0x200000006300; memcpy((void*)0x200000006300, "\x13\x68\x24\x8a\xd9\x08\xeb\x42\x50\x81\x23\x9c\x0a\x10\xa5\x14\xef\x06\xf1\x6f\xa3\x8b\xc5\x2b\x0f\x03\xb0\x4d\x36\xf5\x44\x26\x3c\xb4\xa0\xa3\xff\xbb\xaf\xa8\x00\x89\xcf\x8b\x02\x84\x1d\xf4\x33\xc6\xb9\x7d\xa8\xfb\xfe\x28\x5f\xcc\xd0\x5a\xd4", 61); res = syscall(__NR_shmctl, /*shmid=*/0x80000000, /*cmd=*/0xeul, /*buf=*/0x200000006340ul); if (res != -1) { r[34] = *(uint32_t*)0x200000006348; r[35] = *(uint32_t*)0x20000000637c; } break; case 46: memcpy((void*)0x2000000061c0, "fuse\000", 5); memcpy((void*)0x200000006200, "./file0\000", 8); memcpy((void*)0x2000000063c0, "fd", 2); *(uint8_t*)0x2000000063c2 = 0x3d; sprintf((char*)0x2000000063c3, "0x%016llx", (long long)r[33]); *(uint8_t*)0x2000000063d5 = 0x2c; memcpy((void*)0x2000000063d6, "rootmode", 8); *(uint8_t*)0x2000000063de = 0x3d; sprintf((char*)0x2000000063df, "%023llo", (long long)0x1000); *(uint8_t*)0x2000000063f6 = 0x2c; memcpy((void*)0x2000000063f7, "user_id", 7); *(uint8_t*)0x2000000063fe = 0x3d; sprintf((char*)0x2000000063ff, "%020llu", (long long)r[23]); *(uint8_t*)0x200000006413 = 0x2c; memcpy((void*)0x200000006414, "group_id", 8); *(uint8_t*)0x20000000641c = 0x3d; sprintf((char*)0x20000000641d, "%020llu", (long long)r[34]); *(uint8_t*)0x200000006431 = 0x2c; memcpy((void*)0x200000006432, "blksize", 7); *(uint8_t*)0x200000006439 = 0x3d; sprintf((char*)0x20000000643a, "0x%016llx", (long long)0x600); *(uint8_t*)0x20000000644c = 0x2c; memcpy((void*)0x20000000644d, "max_read", 8); *(uint8_t*)0x200000006455 = 0x3d; sprintf((char*)0x200000006456, "0x%016llx", (long long)0); *(uint8_t*)0x200000006468 = 0x2c; memcpy((void*)0x200000006469, "blksize", 7); *(uint8_t*)0x200000006470 = 0x3d; sprintf((char*)0x200000006471, "0x%016llx", (long long)0x1e00); *(uint8_t*)0x200000006483 = 0x2c; memcpy((void*)0x200000006484, "max_read", 8); *(uint8_t*)0x20000000648c = 0x3d; sprintf((char*)0x20000000648d, "0x%016llx", (long long)0x100000001); *(uint8_t*)0x20000000649f = 0x2c; memcpy((void*)0x2000000064a0, "default_permissions", 19); *(uint8_t*)0x2000000064b3 = 0x2c; memcpy((void*)0x2000000064b4, "default_permissions", 19); *(uint8_t*)0x2000000064c7 = 0x2c; memcpy((void*)0x2000000064c8, "euid<", 5); sprintf((char*)0x2000000064cd, "%020llu", (long long)r[13]); *(uint8_t*)0x2000000064e1 = 0x2c; memcpy((void*)0x2000000064e2, "subj_user", 9); *(uint8_t*)0x2000000064eb = 0x3d; memset((void*)0x2000000064ec, 44, 1); *(uint8_t*)0x2000000064ed = 0x2c; memcpy((void*)0x2000000064ee, "uid<", 4); sprintf((char*)0x2000000064f2, "%020llu", (long long)r[26]); *(uint8_t*)0x200000006506 = 0x2c; memcpy((void*)0x200000006507, "audit", 5); *(uint8_t*)0x20000000650c = 0x2c; memcpy((void*)0x20000000650d, "dont_measure", 12); *(uint8_t*)0x200000006519 = 0x2c; *(uint8_t*)0x20000000651a = 0; memcpy((void*)0x200000006540, "\xd3\xaa\x92", 3); syz_mount_image(/*fs=*/0x2000000061c0, /*dir=*/0x200000006200, /*flags=MS_NOATIME*/0x400, /*opts=*/0x2000000063c0, /*chdir=*/0, /*size=*/0, /*img=*/0x200000006540); break; case 47: memcpy((void*)0x200000006580, "/dev/i2c-#\000", 11); syz_open_dev(/*dev=*/0x200000006580, /*id=*/0x800, /*flags=O_NOATIME*/0x40000); break; case 48: memcpy((void*)0x2000000065c0, "cgroup\000", 7); syz_open_procfs(/*pid=*/r[5], /*file=*/0x2000000065c0); break; case 49: syz_open_pts(/*fd=*/r[14], /*flags=O_TRUNC|O_WRONLY*/0x201); break; case 50: syz_pidfd_open(/*pid=*/r[35], /*flags=*/0); break; case 51: res = syscall(__NR_pkey_alloc, /*flags=*/0ul, /*val=PKEY_DISABLE_WRITE*/2ul); if (res != -1) r[36] = res; break; case 52: syz_pkey_set(/*key=*/r[36], /*val=*/0); break; case 53: syz_socket_connect_nvme_tcp(); break; case 54: *(uint8_t*)0x200000006600 = 0x12; *(uint8_t*)0x200000006601 = 1; *(uint16_t*)0x200000006602 = 0x310; *(uint8_t*)0x200000006604 = 0xf; *(uint8_t*)0x200000006605 = 0x36; *(uint8_t*)0x200000006606 = 0x49; *(uint8_t*)0x200000006607 = 8; *(uint16_t*)0x200000006608 = 0x7d0; *(uint16_t*)0x20000000660a = 0x4101; *(uint16_t*)0x20000000660c = 0x4624; *(uint8_t*)0x20000000660e = 1; *(uint8_t*)0x20000000660f = 2; *(uint8_t*)0x200000006610 = 3; *(uint8_t*)0x200000006611 = 1; *(uint8_t*)0x200000006612 = 9; *(uint8_t*)0x200000006613 = 2; *(uint16_t*)0x200000006614 = 0x4f2; *(uint8_t*)0x200000006616 = 3; *(uint8_t*)0x200000006617 = 1; *(uint8_t*)0x200000006618 = 0xa2; *(uint8_t*)0x200000006619 = 0x40; *(uint8_t*)0x20000000661a = 0x64; *(uint8_t*)0x20000000661b = 9; *(uint8_t*)0x20000000661c = 4; *(uint8_t*)0x20000000661d = 0xc2; *(uint8_t*)0x20000000661e = 7; *(uint8_t*)0x20000000661f = 0xa; *(uint8_t*)0x200000006620 = 0x50; *(uint8_t*)0x200000006621 = 0xb3; *(uint8_t*)0x200000006622 = 0x17; *(uint8_t*)0x200000006623 = 7; *(uint8_t*)0x200000006624 = 9; *(uint8_t*)0x200000006625 = 0x21; *(uint16_t*)0x200000006626 = 3; *(uint8_t*)0x200000006628 = 0xdf; *(uint8_t*)0x200000006629 = 1; *(uint8_t*)0x20000000662a = 0x22; *(uint16_t*)0x20000000662b = 0x238; *(uint8_t*)0x20000000662d = 7; *(uint8_t*)0x20000000662e = 0x24; *(uint8_t*)0x20000000662f = 1; *(uint8_t*)0x200000006630 = 2; *(uint8_t*)0x200000006631 = 2; *(uint16_t*)0x200000006632 = 2; *(uint8_t*)0x200000006634 = 0xb; *(uint8_t*)0x200000006635 = 0x24; *(uint8_t*)0x200000006636 = 2; *(uint8_t*)0x200000006637 = 1; *(uint8_t*)0x200000006638 = 0xde; *(uint8_t*)0x200000006639 = 2; *(uint8_t*)0x20000000663a = 0; *(uint8_t*)0x20000000663b = 5; memcpy((void*)0x20000000663c, "\x11\x6d\xf7", 3); *(uint8_t*)0x20000000663f = 0xa; *(uint8_t*)0x200000006640 = 0x24; *(uint8_t*)0x200000006641 = 2; *(uint8_t*)0x200000006642 = 2; *(uint16_t*)0x200000006643 = 8; *(uint16_t*)0x200000006645 = 3; *(uint8_t*)0x200000006647 = 7; memset((void*)0x200000006648, 59, 1); *(uint8_t*)0x200000006649 = 0xa; *(uint8_t*)0x20000000664a = 0x24; *(uint8_t*)0x20000000664b = 2; *(uint8_t*)0x20000000664c = 1; *(uint8_t*)0x20000000664d = 4; *(uint8_t*)0x20000000664e = 3; *(uint8_t*)0x20000000664f = 0x1a; *(uint8_t*)0x200000006650 = 9; memcpy((void*)0x200000006651, "\x0f\x58", 2); *(uint8_t*)0x200000006653 = 0xc; *(uint8_t*)0x200000006654 = 0x24; *(uint8_t*)0x200000006655 = 2; *(uint8_t*)0x200000006656 = 2; *(uint16_t*)0x200000006657 = 0xf270; *(uint16_t*)0x200000006659 = 0x100; *(uint8_t*)0x20000000665b = 7; memcpy((void*)0x20000000665c, "\x31\x29\xf9", 3); *(uint8_t*)0x20000000665f = 0xb; *(uint8_t*)0x200000006660 = 0x24; *(uint8_t*)0x200000006661 = 2; *(uint8_t*)0x200000006662 = 1; *(uint8_t*)0x200000006663 = 1; *(uint8_t*)0x200000006664 = 3; *(uint8_t*)0x200000006665 = 0xf9; *(uint8_t*)0x200000006666 = 0xa3; memcpy((void*)0x200000006667, "\x54\x06\x13", 3); *(uint8_t*)0x20000000666a = 9; *(uint8_t*)0x20000000666b = 5; *(uint8_t*)0x20000000666c = 3; *(uint8_t*)0x20000000666d = 0x38; *(uint16_t*)0x20000000666e = 8; *(uint8_t*)0x200000006670 = 1; *(uint8_t*)0x200000006671 = 0xf9; *(uint8_t*)0x200000006672 = 0; *(uint8_t*)0x200000006673 = 7; *(uint8_t*)0x200000006674 = 0x25; *(uint8_t*)0x200000006675 = 1; *(uint8_t*)0x200000006676 = 1; *(uint8_t*)0x200000006677 = 0x80; *(uint16_t*)0x200000006678 = 0xffb0; *(uint8_t*)0x20000000667a = 0x62; *(uint8_t*)0x20000000667b = 0xe; memcpy((void*)0x20000000667c, "\x0b\xef\x67\x9d\x63\x59\xd7\x1a\x14\x4a\x38\xa2\x28\x34\xd1\x2b\xd1\x9c\x60\xb6\x58\x29\xf4\x4e\xbe\x6b\x12\x58\xa3\xa7\xa0\xcc\x60\xf3\x00\x07\xc2\xc4\xd2\xa3\xcb\x88\xfb\x6b\xeb\x58\x0e\x62\x81\x47\x11\x4f\xfc\x6a\x4e\x39\xb1\x9e\x71\x8f\xc2\xcd\x0f\xa5\xaf\x68\x86\x49\xab\xe3\xdb\x58\xd0\x70\x72\x03\x28\x3b\x6b\xdc\xa0\x5f\x49\xfb\x16\xb3\x61\x8f\xcf\x4d\xd0\x1c\xb2\xef\x35\x09", 96); *(uint8_t*)0x2000000066dc = 9; *(uint8_t*)0x2000000066dd = 5; *(uint8_t*)0x2000000066de = 4; *(uint8_t*)0x2000000066df = 0; *(uint16_t*)0x2000000066e0 = 0x20; *(uint8_t*)0x2000000066e2 = 1; *(uint8_t*)0x2000000066e3 = 2; *(uint8_t*)0x2000000066e4 = 5; *(uint8_t*)0x2000000066e5 = 0x4e; *(uint8_t*)0x2000000066e6 = 0xa; memcpy((void*)0x2000000066e7, "\xaa\xde\x99\xcc\xf3\x48\x06\x1a\xd9\x22\x25\xe0\x5a\x39\x6a\x2e\xbe\x89\x2c\xa6\x5d\xe9\xef\xa6\x65\x82\x1e\x34\x20\x0c\x5c\xaa\x94\x3c\x9b\x1a\x3e\xb1\x08\x28\xe1\x38\x15\xe6\x12\x0c\x47\x87\xa4\xd3\x95\xb1\xe3\x2a\x8b\xa1\xff\xb9\x91\x37\x58\x79\xd5\x17\x86\x2d\xe6\xe9\xcb\x6f\x72\x33\x35\xdd\x15\x6a", 76); *(uint8_t*)0x200000006733 = 9; *(uint8_t*)0x200000006734 = 5; *(uint8_t*)0x200000006735 = 3; *(uint8_t*)0x200000006736 = 0xc; *(uint16_t*)0x200000006737 = 0x3ff; *(uint8_t*)0x200000006739 = 7; *(uint8_t*)0x20000000673a = 0; *(uint8_t*)0x20000000673b = 0x7f; *(uint8_t*)0x20000000673c = 0x33; *(uint8_t*)0x20000000673d = 0xe; memcpy((void*)0x20000000673e, "\x08\xb9\x28\xc5\x63\xb3\xfb\xc1\x36\xbe\xaf\x22\xbf\x46\xe0\xcf\x55\xe3\xf2\x62\x48\x5f\x30\xb2\x8a\x3f\x9a\x3e\xc9\x01\xce\x80\x66\xc6\x78\x8d\x46\x95\x26\xc5\x5b\xf0\xc2\xb3\xca\x50\x05\x53\x9a", 49); *(uint8_t*)0x20000000676f = 9; *(uint8_t*)0x200000006770 = 5; *(uint8_t*)0x200000006771 = 0xb; *(uint8_t*)0x200000006772 = 4; *(uint16_t*)0x200000006773 = 0x3ff; *(uint8_t*)0x200000006775 = 3; *(uint8_t*)0x200000006776 = 0x40; *(uint8_t*)0x200000006777 = 0x7f; *(uint8_t*)0x200000006778 = 7; *(uint8_t*)0x200000006779 = 0x25; *(uint8_t*)0x20000000677a = 1; *(uint8_t*)0x20000000677b = 0x87; *(uint8_t*)0x20000000677c = 9; *(uint16_t*)0x20000000677d = 0x4e; *(uint8_t*)0x20000000677f = 0xcb; *(uint8_t*)0x200000006780 = 0x11; memcpy((void*)0x200000006781, "\x3b\x9d\xca\xcc\x67\x90\x86\xd7\x8f\x92\x7a\xb6\x34\x93\x5a\x18\x81\x3b\x23\xcc\xef\xfe\xa6\x9b\x63\x0a\xa9\x7c\xc4\x69\x90\x7a\xfa\xc2\xa3\x03\x27\xad\xeb\x90\x1d\x9f\xb9\x00\xad\x82\x13\x80\x98\xcb\xff\x5f\xed\x7f\xee\x2c\x7d\x70\x12\x90\xce\x4a\xd0\x20\xa9\xda\x29\x67\x5f\x8f\x05\x13\x99\x87\x9d\xb5\x70\x22\xb8\x9c\x99\x01\x20\x51\x3a\xaa\x70\xc5\x18\x47\xb1\x28\xdd\x73\xbd\xea\x25\xcb\xb5\x45\xc1\xae\x83\x52\x02\x4c\xa9\x3c\xd7\xea\x88\x1c\xbb\x09\x20\xee\xde\xf0\x72\xef\xe9\xda\x61\xb7\xbd\x77\xa3\xc0\x85\xd7\x12\xc1\x42\xca\x88\xc3\x9f\x8e\xdd\x17\xd6\xfb\x9a\x7e\xf8\xd0\xfa\xd5\xa1\x5a\x33\x3e\x7e\xd0\x5e\x7e\x9a\xe6\xe2\xa4\x64\xc3\x15\x9a\xb1\xa6\x0e\x33\xaf\xbf\x29\xa2\xf6\x78\xc8\xc9\xe2\xf8\xf7\xa8\xd0\x3d\x55\x82\x52\x9b\x27\x7b\x4b\xe8\x55\x83\xe5\xd8\x1b\xc9\x57\x49\x77\x30\x42", 201); *(uint8_t*)0x20000000684a = 9; *(uint8_t*)0x20000000684b = 5; *(uint8_t*)0x20000000684c = 1; *(uint8_t*)0x20000000684d = 3; *(uint16_t*)0x20000000684e = 8; *(uint8_t*)0x200000006850 = 0xe; *(uint8_t*)0x200000006851 = 8; *(uint8_t*)0x200000006852 = 0x7f; *(uint8_t*)0x200000006853 = 0x72; *(uint8_t*)0x200000006854 = 6; memcpy((void*)0x200000006855, "\x6e\xe2\x41\x04\x69\xb7\xa8\xb2\x3e\x32\x55\xa5\x54\xb6\x3d\x5b\xeb\x1b\x34\xb4\x87\x18\x94\xe3\xdf\x69\xe7\x55\x8c\xe5\x6c\xc8\x3b\x83\xae\x1a\xc9\xd1\xde\xc0\x88\x2d\x04\x0a\x78\x01\xa3\x00\xc7\xea\xc2\x6d\x78\xd2\xda\xff\x6b\xd4\x7c\xac\xa5\x00\xd4\x6c\x1b\x5a\x0b\x9e\x1a\xda\x0e\x7b\x60\x6b\x6f\xd6\xb3\x9d\xb8\x1c\x7c\x95\x4c\x04\xd4\xed\xe9\x80\xea\x2c\xa8\x0b\x11\x3b\xdb\x4b\xe7\x47\xe1\xb6\xdc\x92\x81\xd7\x7e\x85\x68\x3a\xaa\xc6\x53\x4c", 112); *(uint8_t*)0x2000000068c5 = 9; *(uint8_t*)0x2000000068c6 = 5; *(uint8_t*)0x2000000068c7 = 0xb; *(uint8_t*)0x2000000068c8 = 0xc; *(uint16_t*)0x2000000068c9 = 0x60e1; *(uint8_t*)0x2000000068cb = 0; *(uint8_t*)0x2000000068cc = 1; *(uint8_t*)0x2000000068cd = 7; *(uint8_t*)0x2000000068ce = 9; *(uint8_t*)0x2000000068cf = 5; *(uint8_t*)0x2000000068d0 = 0; *(uint8_t*)0x2000000068d1 = 0; *(uint16_t*)0x2000000068d2 = 0x10; *(uint8_t*)0x2000000068d4 = 5; *(uint8_t*)0x2000000068d5 = 1; *(uint8_t*)0x2000000068d6 = 0x77; *(uint8_t*)0x2000000068d7 = 9; *(uint8_t*)0x2000000068d8 = 5; *(uint8_t*)0x2000000068d9 = 5; *(uint8_t*)0x2000000068da = 0; *(uint16_t*)0x2000000068db = 0x208; *(uint8_t*)0x2000000068dd = 0x1b; *(uint8_t*)0x2000000068de = 9; *(uint8_t*)0x2000000068df = 7; *(uint8_t*)0x2000000068e0 = 9; *(uint8_t*)0x2000000068e1 = 5; *(uint8_t*)0x2000000068e2 = 0xf; *(uint8_t*)0x2000000068e3 = 0; *(uint16_t*)0x2000000068e4 = 0x40; *(uint8_t*)0x2000000068e6 = 0x30; *(uint8_t*)0x2000000068e7 = 5; *(uint8_t*)0x2000000068e8 = 7; *(uint8_t*)0x2000000068e9 = 0x50; *(uint8_t*)0x2000000068ea = 6; memcpy((void*)0x2000000068eb, "\x01\x1d\xaf\x9a\xd3\xae\xa9\x56\xd0\x18\x4e\x89\x07\xd7\xb0\xb0\xa6\xaa\x9e\x92\x1a\xc6\x4d\x7a\x9e\x5a\x0c\xe5\xb5\xe0\xaf\xb4\x78\x68\xc9\xc4\xa7\x6b\x65\x09\x83\x5b\xf9\xee\x45\xa7\x89\x1e\xaa\xd1\x72\xa8\x75\x63\x4f\x7f\x36\x26\x01\x24\x66\x9b\x2d\x1b\x04\xc2\xfd\xa3\x8c\xc9\x36\x92\x1c\xb5\x61\x24\x5e\xfa", 78); *(uint8_t*)0x200000006939 = 0xb7; *(uint8_t*)0x20000000693a = 0x21; memcpy((void*)0x20000000693b, "\x53\x54\x2a\x37\x44\x9c\x9d\x1a\x4e\x69\x6a\x99\x52\x7d\x5a\xd5\xbd\xad\x1c\x7e\x72\x41\x28\xdf\x50\x29\x5a\xa0\xc6\x14\x01\xca\x6c\xd5\xcd\x35\x69\x77\xf6\x17\xe8\xb1\x14\x48\x46\x62\x69\x11\x6a\xf9\x3b\x9d\xce\x05\xde\xd4\x87\x92\x71\x9f\x65\xbf\xa9\x1d\xa1\x6b\x85\xee\x1d\x62\x36\x08\x4d\x81\x70\xf9\x7c\x0a\x74\xf1\x02\x66\x3c\x64\x5b\x0e\xe1\xb0\xfa\x79\x04\xe6\x46\x43\x8d\x8b\x16\x21\x86\x04\x56\x1c\x1a\xbb\x98\x28\x9e\x3e\xcb\xa8\x8e\x78\xf6\x73\x61\x47\x87\x74\x46\x2a\x4d\x82\x74\x96\x46\x45\x20\x04\xb2\x48\x20\x82\xe9\xc1\xb2\xf2\x97\x24\x19\xf6\xf7\x52\xe1\xbe\xc5\xe1\x92\x5f\xce\x21\x5e\xdb\x82\x65\x34\x4d\xa8\x5b\x85\x16\x4d\xb3\xc6\x33\xe4\xe4\x31\xfe\xc4\xc6\x09\x66\x4e\xac\x2b\x6b\x1f\x5f\x7b\xdc\x10", 181); *(uint8_t*)0x2000000069f0 = 9; *(uint8_t*)0x2000000069f1 = 5; *(uint8_t*)0x2000000069f2 = 0xc; *(uint8_t*)0x2000000069f3 = 0x10; *(uint16_t*)0x2000000069f4 = 0x10; *(uint8_t*)0x2000000069f6 = 3; *(uint8_t*)0x2000000069f7 = 0xf9; *(uint8_t*)0x2000000069f8 = -1; *(uint8_t*)0x2000000069f9 = 0xba; *(uint8_t*)0x2000000069fa = 0x23; memcpy((void*)0x2000000069fb, "\x5c\x48\xa5\x1f\x46\xfa\x07\x8d\x84\xce\x43\x4e\x72\x2a\x7f\xa4\xe7\x02\x1a\xe9\xd9\xb7\x66\x77\x36\x6d\xe6\xa1\x0a\xb3\xe9\x4e\x09\x69\xd7\xfc\x2a\x24\x53\x6e\x11\x50\xd9\x46\x72\xc5\x41\x8b\x02\x95\x1d\xef\x7e\x20\xc7\xdf\xe0\xaa\x26\xad\xbf\x0b\xfd\x8f\x6d\xd3\x51\xfa\x30\x99\x07\x13\x53\x71\x34\xaf\x9c\x14\xfa\x84\xde\xe2\xb9\x5a\xf8\xe1\x34\x54\x2b\x5a\x1a\xd5\x40\x32\x9a\x97\xcb\xdd\x1a\x24\x22\xf1\x3e\x6e\x03\xb4\x9f\x71\x05\xa6\xbf\x49\x00\xea\x72\x3f\xbe\x14\xf2\x1d\x18\x2a\xee\xf2\xcf\x51\x62\x59\x1f\x8b\xd3\x8b\x85\xd4\x5d\x72\x3c\xef\x02\x13\x2b\x5e\x45\x46\x7d\xd8\xd4\x30\xc3\x78\xb8\xbf\x2d\x98\x40\x32\x67\x01\x03\x79\xde\x7b\xd0\x4c\x80\x0d\xfd\x5f\xae\x0c\x0d\xda\xc0\xb5\xcf\xfd\xe9\x8c\xa4\x00\xdc\xe3\x0d\xdd", 184); *(uint8_t*)0x200000006ab3 = 9; *(uint8_t*)0x200000006ab4 = 4; *(uint8_t*)0x200000006ab5 = 0xfc; *(uint8_t*)0x200000006ab6 = 4; *(uint8_t*)0x200000006ab7 = 1; *(uint8_t*)0x200000006ab8 = -1; *(uint8_t*)0x200000006ab9 = 6; *(uint8_t*)0x200000006aba = 0x39; *(uint8_t*)0x200000006abb = 0xc; *(uint8_t*)0x200000006abc = 9; *(uint8_t*)0x200000006abd = 5; *(uint8_t*)0x200000006abe = 0; *(uint8_t*)0x200000006abf = 2; *(uint16_t*)0x200000006ac0 = 0x400; *(uint8_t*)0x200000006ac2 = 9; *(uint8_t*)0x200000006ac3 = 0xdf; *(uint8_t*)0x200000006ac4 = 2; *(uint8_t*)0x200000006ac5 = 7; *(uint8_t*)0x200000006ac6 = 0x25; *(uint8_t*)0x200000006ac7 = 1; *(uint8_t*)0x200000006ac8 = 3; *(uint8_t*)0x200000006ac9 = 8; *(uint16_t*)0x200000006aca = 0x8000; *(uint8_t*)0x200000006acc = 9; *(uint8_t*)0x200000006acd = 4; *(uint8_t*)0x200000006ace = 0x9d; *(uint8_t*)0x200000006acf = 1; *(uint8_t*)0x200000006ad0 = 3; *(uint8_t*)0x200000006ad1 = 0x48; *(uint8_t*)0x200000006ad2 = 0x48; *(uint8_t*)0x200000006ad3 = 0x40; *(uint8_t*)0x200000006ad4 = 0xa; *(uint8_t*)0x200000006ad5 = 9; *(uint8_t*)0x200000006ad6 = 5; *(uint8_t*)0x200000006ad7 = 1; *(uint8_t*)0x200000006ad8 = 0x10; *(uint16_t*)0x200000006ad9 = 0x40; *(uint8_t*)0x200000006adb = 2; *(uint8_t*)0x200000006adc = 0xf1; *(uint8_t*)0x200000006add = 0xc; *(uint8_t*)0x200000006ade = 7; *(uint8_t*)0x200000006adf = 0x25; *(uint8_t*)0x200000006ae0 = 1; *(uint8_t*)0x200000006ae1 = 0x81; *(uint8_t*)0x200000006ae2 = 0x81; *(uint16_t*)0x200000006ae3 = 5; *(uint8_t*)0x200000006ae5 = 9; *(uint8_t*)0x200000006ae6 = 5; *(uint8_t*)0x200000006ae7 = 7; *(uint8_t*)0x200000006ae8 = 8; *(uint16_t*)0x200000006ae9 = 0x40; *(uint8_t*)0x200000006aeb = 6; *(uint8_t*)0x200000006aec = 0; *(uint8_t*)0x200000006aed = 1; *(uint8_t*)0x200000006aee = 7; *(uint8_t*)0x200000006aef = 0x25; *(uint8_t*)0x200000006af0 = 1; *(uint8_t*)0x200000006af1 = 2; *(uint8_t*)0x200000006af2 = 0; *(uint16_t*)0x200000006af3 = 0x10; *(uint8_t*)0x200000006af5 = 6; *(uint8_t*)0x200000006af6 = 0xe; memcpy((void*)0x200000006af7, "\x55\x5d\xc7\x8c", 4); *(uint8_t*)0x200000006afb = 9; *(uint8_t*)0x200000006afc = 5; *(uint8_t*)0x200000006afd = 5; *(uint8_t*)0x200000006afe = 4; *(uint16_t*)0x200000006aff = 0x200; *(uint8_t*)0x200000006b01 = 9; *(uint8_t*)0x200000006b02 = 0x40; *(uint8_t*)0x200000006b03 = 3; *(uint32_t*)0x200000006c00 = 0xa; *(uint64_t*)0x200000006c04 = 0x200000006b40; *(uint8_t*)0x200000006b40 = 0xa; *(uint8_t*)0x200000006b41 = 6; *(uint16_t*)0x200000006b42 = 0x200; *(uint8_t*)0x200000006b44 = 0x3b; *(uint8_t*)0x200000006b45 = 5; *(uint8_t*)0x200000006b46 = 9; *(uint8_t*)0x200000006b47 = 0x40; *(uint8_t*)0x200000006b48 = 0xa4; *(uint8_t*)0x200000006b49 = 0; *(uint32_t*)0x200000006c0c = 0x30; *(uint64_t*)0x200000006c10 = 0x200000006b80; *(uint8_t*)0x200000006b80 = 5; *(uint8_t*)0x200000006b81 = 0xf; *(uint16_t*)0x200000006b82 = 0x30; *(uint8_t*)0x200000006b84 = 3; *(uint8_t*)0x200000006b85 = 3; *(uint8_t*)0x200000006b86 = 0x10; *(uint8_t*)0x200000006b87 = 0xb; *(uint8_t*)0x200000006b88 = 0x10; *(uint8_t*)0x200000006b89 = 0x10; *(uint8_t*)0x200000006b8a = 0xa; *(uint8_t*)0x200000006b8b = 0x1c; STORE_BY_BITMASK(uint32_t, , 0x200000006b8c, 1, 0, 5); STORE_BY_BITMASK(uint32_t, , 0x200000006b8c, 0x7ffffd3, 5, 27); *(uint16_t*)0x200000006b90 = 0xff00; *(uint16_t*)0x200000006b92 = 0x1fb; *(uint32_t*)0x200000006b94 = 0; *(uint8_t*)0x200000006b98 = 0x18; *(uint8_t*)0x200000006b99 = 0x10; *(uint8_t*)0x200000006b9a = 0xa; *(uint8_t*)0x200000006b9b = 0xf; STORE_BY_BITMASK(uint32_t, , 0x200000006b9c, 3, 0, 5); STORE_BY_BITMASK(uint32_t, , 0x200000006b9c, 8, 5, 27); *(uint16_t*)0x200000006ba0 = 0xff00; *(uint16_t*)0x200000006ba2 = 0xd00; *(uint32_t*)0x200000006ba4 = 0; *(uint32_t*)0x200000006ba8 = 0xffc0cf; *(uint32_t*)0x200000006bac = 0xff0000; *(uint32_t*)0x200000006c18 = 1; *(uint32_t*)0x200000006c1c = 4; *(uint64_t*)0x200000006c20 = 0x200000006bc0; *(uint8_t*)0x200000006bc0 = 4; *(uint8_t*)0x200000006bc1 = 3; *(uint16_t*)0x200000006bc2 = 0x42f; res = -1; res = syz_usb_connect(/*speed=USB_SPEED_HIGH*/3, /*dev_len=*/0x504, /*dev=*/0x200000006600, /*conn_descs=*/0x200000006c00); if (res != -1) r[37] = res; break; case 55: *(uint8_t*)0x200000006c40 = 0x12; *(uint8_t*)0x200000006c41 = 1; *(uint16_t*)0x200000006c42 = 0x200; *(uint8_t*)0x200000006c44 = -1; *(uint8_t*)0x200000006c45 = -1; *(uint8_t*)0x200000006c46 = -1; *(uint8_t*)0x200000006c47 = 0x40; *(uint16_t*)0x200000006c48 = 0xcf3; *(uint16_t*)0x200000006c4a = 0x9271; *(uint16_t*)0x200000006c4c = 0x108; *(uint8_t*)0x200000006c4e = 1; *(uint8_t*)0x200000006c4f = 2; *(uint8_t*)0x200000006c50 = 3; *(uint8_t*)0x200000006c51 = 1; *(uint8_t*)0x200000006c52 = 9; *(uint8_t*)0x200000006c53 = 2; *(uint16_t*)0x200000006c54 = 0x48; *(uint8_t*)0x200000006c56 = 1; *(uint8_t*)0x200000006c57 = 1; *(uint8_t*)0x200000006c58 = 0; *(uint8_t*)0x200000006c59 = 0x80; *(uint8_t*)0x200000006c5a = 0xfa; *(uint8_t*)0x200000006c5b = 9; *(uint8_t*)0x200000006c5c = 4; *(uint8_t*)0x200000006c5d = 0; *(uint8_t*)0x200000006c5e = 0; *(uint8_t*)0x200000006c5f = 6; *(uint8_t*)0x200000006c60 = -1; *(uint8_t*)0x200000006c61 = 0; *(uint8_t*)0x200000006c62 = 0; *(uint8_t*)0x200000006c63 = 0; *(uint8_t*)0x200000006c64 = 9; *(uint8_t*)0x200000006c65 = 5; *(uint8_t*)0x200000006c66 = 1; *(uint8_t*)0x200000006c67 = 2; *(uint16_t*)0x200000006c68 = 0x200; *(uint8_t*)0x200000006c6a = 0; *(uint8_t*)0x200000006c6b = 0; *(uint8_t*)0x200000006c6c = 0; *(uint8_t*)0x200000006c6d = 9; *(uint8_t*)0x200000006c6e = 5; *(uint8_t*)0x200000006c6f = 0x82; *(uint8_t*)0x200000006c70 = 2; *(uint16_t*)0x200000006c71 = 0x200; *(uint8_t*)0x200000006c73 = 0; *(uint8_t*)0x200000006c74 = 0; *(uint8_t*)0x200000006c75 = 0; *(uint8_t*)0x200000006c76 = 9; *(uint8_t*)0x200000006c77 = 5; *(uint8_t*)0x200000006c78 = 0x83; *(uint8_t*)0x200000006c79 = 3; *(uint16_t*)0x200000006c7a = 0x40; *(uint8_t*)0x200000006c7c = 1; *(uint8_t*)0x200000006c7d = 0; *(uint8_t*)0x200000006c7e = 0; *(uint8_t*)0x200000006c7f = 9; *(uint8_t*)0x200000006c80 = 5; *(uint8_t*)0x200000006c81 = 4; *(uint8_t*)0x200000006c82 = 3; *(uint16_t*)0x200000006c83 = 0x40; *(uint8_t*)0x200000006c85 = 1; *(uint8_t*)0x200000006c86 = 0; *(uint8_t*)0x200000006c87 = 0; *(uint8_t*)0x200000006c88 = 9; *(uint8_t*)0x200000006c89 = 5; *(uint8_t*)0x200000006c8a = 5; *(uint8_t*)0x200000006c8b = 2; *(uint16_t*)0x200000006c8c = 0x200; *(uint8_t*)0x200000006c8e = 0; *(uint8_t*)0x200000006c8f = 0; *(uint8_t*)0x200000006c90 = 0; *(uint8_t*)0x200000006c91 = 9; *(uint8_t*)0x200000006c92 = 5; *(uint8_t*)0x200000006c93 = 6; *(uint8_t*)0x200000006c94 = 2; *(uint16_t*)0x200000006c95 = 0x200; *(uint8_t*)0x200000006c97 = 0; *(uint8_t*)0x200000006c98 = 0; *(uint8_t*)0x200000006c99 = 0; res = -1; res = syz_usb_connect_ath9k(/*speed=*/3, /*dev_len=*/0x5a, /*dev=*/0x200000006c40, /*conn_descs=*/0); if (res != -1) r[38] = res; break; case 56: *(uint8_t*)0x200000006cc0 = 0x12; *(uint8_t*)0x200000006cc1 = 1; *(uint16_t*)0x200000006cc2 = 0x310; *(uint8_t*)0x200000006cc4 = 2; *(uint8_t*)0x200000006cc5 = 0; *(uint8_t*)0x200000006cc6 = 0; *(uint8_t*)0x200000006cc7 = 8; *(uint16_t*)0x200000006cc8 = 0x525; *(uint16_t*)0x200000006cca = 0xa4a1; *(uint16_t*)0x200000006ccc = 0x40; *(uint8_t*)0x200000006cce = 1; *(uint8_t*)0x200000006ccf = 2; *(uint8_t*)0x200000006cd0 = 3; *(uint8_t*)0x200000006cd1 = 1; *(uint8_t*)0x200000006cd2 = 9; *(uint8_t*)0x200000006cd3 = 2; *(uint16_t*)0x200000006cd4 = 0x7d; *(uint8_t*)0x200000006cd6 = 1; *(uint8_t*)0x200000006cd7 = 1; *(uint8_t*)0x200000006cd8 = 6; *(uint8_t*)0x200000006cd9 = 0x10; *(uint8_t*)0x200000006cda = 0xb; *(uint8_t*)0x200000006cdb = 9; *(uint8_t*)0x200000006cdc = 4; *(uint8_t*)0x200000006cdd = 0; *(uint8_t*)0x200000006cde = 4; *(uint8_t*)0x200000006cdf = 3; *(uint8_t*)0x200000006ce0 = 2; *(uint8_t*)0x200000006ce1 = 6; *(uint8_t*)0x200000006ce2 = 0; *(uint8_t*)0x200000006ce3 = 0xe; *(uint8_t*)0x200000006ce4 = 0xb; *(uint8_t*)0x200000006ce5 = 0x24; *(uint8_t*)0x200000006ce6 = 6; *(uint8_t*)0x200000006ce7 = 0; *(uint8_t*)0x200000006ce8 = 0; memcpy((void*)0x200000006ce9, "\xd6\x01\x32\xf1\x49\xc6", 6); *(uint8_t*)0x200000006cef = 5; *(uint8_t*)0x200000006cf0 = 0x24; *(uint8_t*)0x200000006cf1 = 0; *(uint16_t*)0x200000006cf2 = 0xbb8; *(uint8_t*)0x200000006cf4 = 0xd; *(uint8_t*)0x200000006cf5 = 0x24; *(uint8_t*)0x200000006cf6 = 0xf; *(uint8_t*)0x200000006cf7 = 1; *(uint32_t*)0x200000006cf8 = 7; *(uint16_t*)0x200000006cfc = 0x32a; *(uint16_t*)0x200000006cfe = 8; *(uint8_t*)0x200000006d00 = 0x1f; *(uint8_t*)0x200000006d01 = 5; *(uint8_t*)0x200000006d02 = 0x24; *(uint8_t*)0x200000006d03 = 0x15; *(uint16_t*)0x200000006d04 = 0x101; *(uint8_t*)0x200000006d06 = 0x15; *(uint8_t*)0x200000006d07 = 0x24; *(uint8_t*)0x200000006d08 = 0x12; *(uint16_t*)0x200000006d09 = 0xfffc; *(uint64_t*)0x200000006d0b = 0x14f5e048ba817a3; *(uint64_t*)0x200000006d13 = 0x2a397ecbffc007a6; *(uint8_t*)0x200000006d1b = 7; *(uint8_t*)0x200000006d1c = 0x24; *(uint8_t*)0x200000006d1d = 0xa; *(uint8_t*)0x200000006d1e = 0xb; *(uint8_t*)0x200000006d1f = 9; *(uint8_t*)0x200000006d20 = 0xf; *(uint8_t*)0x200000006d21 = 2; *(uint8_t*)0x200000006d22 = 5; *(uint8_t*)0x200000006d23 = 0x24; *(uint8_t*)0x200000006d24 = 1; *(uint8_t*)0x200000006d25 = 1; *(uint8_t*)0x200000006d26 = -1; *(uint8_t*)0x200000006d27 = 5; *(uint8_t*)0x200000006d28 = 0x24; *(uint8_t*)0x200000006d29 = 0x15; *(uint16_t*)0x200000006d2a = 0x7ff; *(uint8_t*)0x200000006d2c = 8; *(uint8_t*)0x200000006d2d = 0x24; *(uint8_t*)0x200000006d2e = 0x1c; *(uint16_t*)0x200000006d2f = 5; *(uint8_t*)0x200000006d31 = 0x32; *(uint16_t*)0x200000006d32 = 0xa; *(uint8_t*)0x200000006d34 = 9; *(uint8_t*)0x200000006d35 = 5; *(uint8_t*)0x200000006d36 = 0x81; *(uint8_t*)0x200000006d37 = 3; *(uint16_t*)0x200000006d38 = 0x10; *(uint8_t*)0x200000006d3a = 7; *(uint8_t*)0x200000006d3b = 0x99; *(uint8_t*)0x200000006d3c = 0xb2; *(uint8_t*)0x200000006d3d = 9; *(uint8_t*)0x200000006d3e = 5; *(uint8_t*)0x200000006d3f = 0x82; *(uint8_t*)0x200000006d40 = 2; *(uint16_t*)0x200000006d41 = 8; *(uint8_t*)0x200000006d43 = 0x1a; *(uint8_t*)0x200000006d44 = 7; *(uint8_t*)0x200000006d45 = 0xc4; *(uint8_t*)0x200000006d46 = 9; *(uint8_t*)0x200000006d47 = 5; *(uint8_t*)0x200000006d48 = 3; *(uint8_t*)0x200000006d49 = 2; *(uint16_t*)0x200000006d4a = 0x3ff; *(uint8_t*)0x200000006d4c = 0xa6; *(uint8_t*)0x200000006d4d = 3; *(uint8_t*)0x200000006d4e = 0xa7; *(uint32_t*)0x200000007240 = 0xa; *(uint64_t*)0x200000007244 = 0x200000006d80; *(uint8_t*)0x200000006d80 = 0xa; *(uint8_t*)0x200000006d81 = 6; *(uint16_t*)0x200000006d82 = 0x300; *(uint8_t*)0x200000006d84 = 0xfb; *(uint8_t*)0x200000006d85 = 3; *(uint8_t*)0x200000006d86 = 0xc; *(uint8_t*)0x200000006d87 = -1; *(uint8_t*)0x200000006d88 = 1; *(uint8_t*)0x200000006d89 = 0; *(uint32_t*)0x20000000724c = 0x3c; *(uint64_t*)0x200000007250 = 0x200000006dc0; *(uint8_t*)0x200000006dc0 = 5; *(uint8_t*)0x200000006dc1 = 0xf; *(uint16_t*)0x200000006dc2 = 0x3c; *(uint8_t*)0x200000006dc4 = 6; *(uint8_t*)0x200000006dc5 = 7; *(uint8_t*)0x200000006dc6 = 0x10; *(uint8_t*)0x200000006dc7 = 2; STORE_BY_BITMASK(uint32_t, , 0x200000006dc8, 4, 0, 8); STORE_BY_BITMASK(uint32_t, , 0x200000006dc9, 7, 0, 4); STORE_BY_BITMASK(uint32_t, , 0x200000006dc9, 7, 4, 4); STORE_BY_BITMASK(uint32_t, , 0x200000006dca, 0x56a9, 0, 16); *(uint8_t*)0x200000006dcc = 0xb; *(uint8_t*)0x200000006dcd = 0x10; *(uint8_t*)0x200000006dce = 1; *(uint8_t*)0x200000006dcf = 4; *(uint16_t*)0x200000006dd0 = 0x42; *(uint8_t*)0x200000006dd2 = 2; *(uint8_t*)0x200000006dd3 = 3; *(uint16_t*)0x200000006dd4 = 0x63ac; *(uint8_t*)0x200000006dd6 = 9; *(uint8_t*)0x200000006dd7 = 3; *(uint8_t*)0x200000006dd8 = 0x10; *(uint8_t*)0x200000006dd9 = 0xb; *(uint8_t*)0x200000006dda = 7; *(uint8_t*)0x200000006ddb = 0x10; *(uint8_t*)0x200000006ddc = 2; STORE_BY_BITMASK(uint32_t, , 0x200000006ddd, 0x1a, 0, 8); STORE_BY_BITMASK(uint32_t, , 0x200000006dde, 7, 0, 4); STORE_BY_BITMASK(uint32_t, , 0x200000006dde, 0xb, 4, 4); STORE_BY_BITMASK(uint32_t, , 0x200000006ddf, 0xd5, 0, 16); *(uint8_t*)0x200000006de1 = 0x10; *(uint8_t*)0x200000006de2 = 0x10; *(uint8_t*)0x200000006de3 = 0xa; *(uint8_t*)0x200000006de4 = 0x7f; STORE_BY_BITMASK(uint32_t, , 0x200000006de5, 1, 0, 5); STORE_BY_BITMASK(uint32_t, , 0x200000006de5, 0x12f, 5, 27); *(uint16_t*)0x200000006de9 = 0xf00; *(uint16_t*)0x200000006deb = 1; *(uint32_t*)0x200000006ded = 0x3fc0; *(uint8_t*)0x200000006df1 = 0xb; *(uint8_t*)0x200000006df2 = 0x10; *(uint8_t*)0x200000006df3 = 1; *(uint8_t*)0x200000006df4 = 8; *(uint16_t*)0x200000006df5 = 0x40; *(uint8_t*)0x200000006df7 = 7; *(uint8_t*)0x200000006df8 = 5; *(uint16_t*)0x200000006df9 = 2; *(uint8_t*)0x200000006dfb = 4; *(uint32_t*)0x200000007258 = 8; *(uint32_t*)0x20000000725c = 0x78; *(uint64_t*)0x200000007260 = 0x200000006e00; *(uint8_t*)0x200000006e00 = 0x78; *(uint8_t*)0x200000006e01 = 3; memcpy((void*)0x200000006e02, "\xd7\xb4\xca\xdb\x72\xdc\xe2\x7c\xa7\xfb\x52\x09\xaa\xd1\xb3\x58\x5c\x81\x88\xf0\x61\x26\xd3\xf1\x8e\xdd\x4c\xfa\x47\xad\xdb\xd2\xa6\x71\x5d\xd4\xad\xfa\x69\x7f\x02\xbc\xb0\x89\xed\x20\x13\x26\x88\x85\xf9\xc7\x85\xbd\x7c\x5d\x4e\xe5\x0d\xe3\xce\xcd\x7a\x9d\x0b\x7b\x2e\x70\x82\x26\xe8\xac\xb1\xe9\x08\xb1\xf5\xc0\xc2\xa8\x13\x24\x65\xe4\x51\xfe\x49\xf1\x5e\x60\xc8\xd3\xb9\xc8\x43\x05\xd0\xdd\x8f\x63\x44\x80\x05\x02\x59\xca\xc3\xce\x9c\xfc\x95\x09\x2b\xd7\xe4\x91\x86\x6d", 118); *(uint32_t*)0x200000007268 = 0x13; *(uint64_t*)0x20000000726c = 0x200000006e80; *(uint8_t*)0x200000006e80 = 0x13; *(uint8_t*)0x200000006e81 = 3; memcpy((void*)0x200000006e82, "\x7d\x97\xd9\xeb\x8a\xf2\x94\x3b\x99\x85\xd3\x0c\xaa\xea\xd8\x9b\x5a", 17); *(uint32_t*)0x200000007274 = 4; *(uint64_t*)0x200000007278 = 0x200000006ec0; *(uint8_t*)0x200000006ec0 = 4; *(uint8_t*)0x200000006ec1 = 3; *(uint16_t*)0x200000006ec2 = 0x44a; *(uint32_t*)0x200000007280 = 4; *(uint64_t*)0x200000007284 = 0x200000006f00; *(uint8_t*)0x200000006f00 = 4; *(uint8_t*)0x200000006f01 = 3; *(uint16_t*)0x200000006f02 = 0x1c09; *(uint32_t*)0x20000000728c = 0x93; *(uint64_t*)0x200000007290 = 0x200000006f40; *(uint8_t*)0x200000006f40 = 0x93; *(uint8_t*)0x200000006f41 = 3; memcpy((void*)0x200000006f42, "\xa7\xe5\x52\x92\x38\xf7\x96\xc9\x00\x0c\x75\x3f\x41\xb8\x18\x31\x40\xf3\x91\x4b\x76\xbf\x1c\x42\x8e\xbe\x8d\x39\xc6\xf0\x72\xb4\x81\xec\xad\x74\x62\x74\xe7\xc5\x38\x79\x0d\x8c\x73\x0d\x20\x51\x7a\x22\x44\xa3\x78\x1b\x11\x5c\x07\xd4\x0e\x9e\xc9\xc0\x59\xf1\x2d\x0d\x15\xf4\x6c\xcf\x0c\xde\x26\xef\xa9\xd0\x2a\x11\x9e\x2c\xc5\x62\x7c\x7f\x42\x41\x24\x4d\x08\x43\xef\x00\x18\xb1\x2f\xc3\xcd\x46\x7b\x5f\xdc\xe5\x8a\x69\x75\xd0\x7a\xc3\x52\xa4\x2f\x16\x15\x17\x8d\xcb\x09\x90\xae\xca\x46\x46\x13\x06\x81\x6b\xec\xde\xb8\x96\xba\xc7\x65\xde\xd8\x1e\xbd\x75\xba\x4d\x97\x22\x9b\x15\xa9", 145); *(uint32_t*)0x200000007298 = 0xc2; *(uint64_t*)0x20000000729c = 0x200000007000; *(uint8_t*)0x200000007000 = 0xc2; *(uint8_t*)0x200000007001 = 3; memcpy((void*)0x200000007002, "\xd5\xa3\xd4\x83\x01\x2b\x31\xe4\x9d\xfa\x33\xfd\x95\x93\xb4\xb6\x68\xaa\x6f\x3f\x39\x30\x18\x37\xd9\x51\xda\xf2\x56\x31\x68\x19\xf5\xe7\x1f\xa6\x51\xbb\x06\xb2\xaf\x65\xaf\x27\xc7\xbf\x0f\xda\x1e\xaa\x1e\x32\x23\x1b\x75\xf4\xd0\x6d\x49\x23\xc7\x60\x13\xe9\xd7\x6a\x12\x20\x28\x16\xff\x87\x40\xa9\xfb\x4f\x2e\xce\xb2\x7b\xd2\xe1\xab\x1e\x7b\xd4\xba\x73\x14\xb3\x3d\x15\xe0\xfe\x65\xaa\x2b\x2e\x7f\xfb\x32\x36\xcb\x61\x54\x93\x39\x1f\xea\xb3\xbf\xb8\x28\x18\x2f\xb6\x0c\x4f\xd6\xfe\xf4\x22\xe1\x06\xf3\x84\xbe\x63\x39\x05\xca\x1a\xaf\x83\xd9\xdd\xb2\xa2\x90\x2e\x2a\x11\x7d\xe4\xe5\x96\x14\x58\x09\xb3\xb3\x4b\x1e\xa4\x32\xb4\x12\x39\x1f\xfb\x25\xac\x25\x5e\x7d\xa1\x1d\x99\x4e\x7e\x9e\x98\xe0\x72\x3a\x27\x57\xe5\x80\x95\x9d\xae\x6f\xa7\xac\x2a\xfb\x8d\xc5\x38\x4b\x4a", 192); *(uint32_t*)0x2000000072a4 = 0x5b; *(uint64_t*)0x2000000072a8 = 0x200000007100; *(uint8_t*)0x200000007100 = 0x5b; *(uint8_t*)0x200000007101 = 3; memcpy((void*)0x200000007102, "\xa7\x94\x09\x09\x68\xe4\x6e\x97\xb7\x26\x9f\xca\xe0\xf8\x18\xbf\x9a\x99\xa5\x0d\xe6\x0e\x5c\xda\x68\x47\x21\xbe\x6d\xc3\x48\x20\xf9\x12\xc3\x38\xd7\xdc\x8a\xc5\x0d\x93\xfc\x92\xa2\xeb\xde\x1a\x02\x65\x20\x89\x72\x66\x08\xa9\xe5\x87\x7f\x4c\xac\xf9\x1b\x9e\xec\x5b\x5e\xb2\xfc\x7f\xa7\xbb\x3d\x26\x60\x75\x37\xf0\xe5\x5d\x00\x79\x3e\x7c\xf1\x3b\xbb\x36\x7e", 89); *(uint32_t*)0x2000000072b0 = 0x90; *(uint64_t*)0x2000000072b4 = 0x200000007180; *(uint8_t*)0x200000007180 = 0x90; *(uint8_t*)0x200000007181 = 3; memcpy((void*)0x200000007182, "\xf9\x92\x6b\x0d\xae\x8c\x46\x23\x52\x10\x5e\xd1\xc4\xd3\xff\x50\xcc\x9c\xe9\x82\xc3\x97\xe9\x2e\x57\x61\x01\x31\x71\x90\xc2\x32\x7a\x2b\xa7\x23\x84\x41\x49\xe5\x5f\x4b\x96\x1d\x0f\x0d\xef\xbc\x7e\xdb\x70\xf5\xd6\x11\x69\x07\x42\x65\xac\xd8\x1c\xee\xc5\xa1\x5b\x66\xa5\xe5\x00\x92\x36\xd0\x62\x99\x4a\xf9\xaf\xcb\xe0\x47\x36\xaa\xad\x6b\xb5\x5c\xb3\x0e\x05\x7c\x42\xd0\xdf\x74\x81\x60\x3c\x3c\x95\x9b\x5e\x4e\x20\xf0\x53\x82\xa9\xd9\xad\x4c\x01\x68\x0a\xe3\x59\x7e\xf4\x03\xde\xdf\x0b\x6c\x53\xfd\xc7\x0d\x13\xed\x11\x6e\xf9\xea\x90\x20\x93\xf1\xc9\xf4\xaf\x4c\xec\x25", 142); res = -1; res = syz_usb_connect(/*speed=USB_SPEED_SUPER_PLUS*/6, /*dev_len=*/0x8f, /*dev=*/0x200000006cc0, /*conn_descs=*/0x200000007240); if (res != -1) r[39] = res; break; case 57: *(uint32_t*)0x200000007480 = 0x2c; *(uint64_t*)0x200000007484 = 0x2000000072c0; *(uint8_t*)0x2000000072c0 = 0x40; *(uint8_t*)0x2000000072c1 = 7; *(uint32_t*)0x2000000072c2 = 0x1b; *(uint8_t*)0x2000000072c6 = 0x1b; *(uint8_t*)0x2000000072c7 = 0xa; memcpy((void*)0x2000000072c8, "\x90\x73\x0f\x1d\x9e\x91\xd2\xe1\xdf\x57\x71\x43\xe1\x8c\x68\x0e\xac\xe6\xd6\xc1\x22\x99\x24\x61\x28", 25); *(uint64_t*)0x20000000748c = 0x200000007300; *(uint8_t*)0x200000007300 = 0; *(uint8_t*)0x200000007301 = 3; *(uint32_t*)0x200000007302 = 0x44; *(uint8_t*)0x200000007306 = 0x44; *(uint8_t*)0x200000007307 = 3; memcpy((void*)0x200000007308, "\x87\xd7\x4d\xd4\x60\x96\x80\x9a\x8f\x49\x88\xdd\xaa\x95\xa5\x32\xfb\xc2\x2d\x85\x85\xd1\x59\x28\x57\xad\x0a\xb0\x0c\x17\xa4\xfe\xf3\xb2\x29\xa0\x2f\xe0\xe3\x64\x93\x16\xbe\xd9\xf4\x4f\x58\x8b\x1f\x0b\x47\xbc\x86\x70\x51\x29\x44\x09\x38\xbd\x68\xa2\x9a\x84\xf8\x29", 66); *(uint64_t*)0x200000007494 = 0x200000007380; *(uint8_t*)0x200000007380 = 0; *(uint8_t*)0x200000007381 = 0xf; *(uint32_t*)0x200000007382 = 0x41; *(uint8_t*)0x200000007386 = 5; *(uint8_t*)0x200000007387 = 0xf; *(uint16_t*)0x200000007388 = 0x41; *(uint8_t*)0x20000000738a = 4; *(uint8_t*)0x20000000738b = 0x20; *(uint8_t*)0x20000000738c = 0x10; *(uint8_t*)0x20000000738d = 0xa; *(uint8_t*)0x20000000738e = 0; STORE_BY_BITMASK(uint32_t, , 0x20000000738f, 5, 0, 5); STORE_BY_BITMASK(uint32_t, , 0x20000000738f, 0xe85, 5, 27); *(uint16_t*)0x200000007393 = 0xf00; *(uint16_t*)0x200000007395 = 3; *(uint32_t*)0x200000007397 = 0xff00a0; *(uint32_t*)0x20000000739b = 0xff00f0; *(uint32_t*)0x20000000739f = 0x30; *(uint32_t*)0x2000000073a3 = 0xf; *(uint32_t*)0x2000000073a7 = 0xdfbf; *(uint8_t*)0x2000000073ab = 7; *(uint8_t*)0x2000000073ac = 0x10; *(uint8_t*)0x2000000073ad = 2; STORE_BY_BITMASK(uint32_t, , 0x2000000073ae, 4, 0, 8); STORE_BY_BITMASK(uint32_t, , 0x2000000073af, 4, 0, 4); STORE_BY_BITMASK(uint32_t, , 0x2000000073af, 1, 4, 4); STORE_BY_BITMASK(uint32_t, , 0x2000000073b0, 0xff, 0, 16); *(uint8_t*)0x2000000073b2 = 0xb; *(uint8_t*)0x2000000073b3 = 0x10; *(uint8_t*)0x2000000073b4 = 1; *(uint8_t*)0x2000000073b5 = 2; *(uint16_t*)0x2000000073b6 = 1; *(uint8_t*)0x2000000073b8 = 1; *(uint8_t*)0x2000000073b9 = 3; *(uint16_t*)0x2000000073ba = 9; *(uint8_t*)0x2000000073bc = 8; *(uint8_t*)0x2000000073bd = 0xa; *(uint8_t*)0x2000000073be = 0x10; *(uint8_t*)0x2000000073bf = 3; *(uint8_t*)0x2000000073c0 = 2; *(uint16_t*)0x2000000073c1 = 4; *(uint8_t*)0x2000000073c3 = 3; *(uint8_t*)0x2000000073c4 = 0xb6; *(uint16_t*)0x2000000073c5 = 5; *(uint64_t*)0x20000000749c = 0x200000007400; *(uint8_t*)0x200000007400 = 0x20; *(uint8_t*)0x200000007401 = 0x29; *(uint32_t*)0x200000007402 = 0xf; *(uint8_t*)0x200000007406 = 0xf; *(uint8_t*)0x200000007407 = 0x29; *(uint8_t*)0x200000007408 = 0xf; *(uint16_t*)0x200000007409 = 4; *(uint8_t*)0x20000000740b = 6; *(uint8_t*)0x20000000740c = 0x32; memcpy((void*)0x20000000740d, "\xb2\xc8\x4f\x72", 4); memcpy((void*)0x200000007411, "\xf5\xfb\x7b\x90", 4); *(uint64_t*)0x2000000074a4 = 0x200000007440; *(uint8_t*)0x200000007440 = 0x20; *(uint8_t*)0x200000007441 = 0x2a; *(uint32_t*)0x200000007442 = 0xc; *(uint8_t*)0x200000007446 = 0xc; *(uint8_t*)0x200000007447 = 0x2a; *(uint8_t*)0x200000007448 = 0x3a; *(uint16_t*)0x200000007449 = 0x60; *(uint8_t*)0x20000000744b = 4; *(uint8_t*)0x20000000744c = 4; *(uint8_t*)0x20000000744d = 7; *(uint16_t*)0x20000000744e = 0x8001; *(uint16_t*)0x200000007450 = 8; *(uint32_t*)0x200000007980 = 0x84; *(uint64_t*)0x200000007984 = 0x2000000074c0; *(uint8_t*)0x2000000074c0 = 0; *(uint8_t*)0x2000000074c1 = 0; *(uint32_t*)0x2000000074c2 = 0xcf; memcpy((void*)0x2000000074c6, "\x9f\x51\xc6\xee\x54\xbf\xc1\xfc\x30\xd7\x87\x49\x9a\xb2\x44\x93\xc2\xf3\x0f\x78\xfe\x08\x8e\x72\x4a\xd2\x9b\xad\xb6\xc2\x40\x68\x74\xa9\x09\xd8\x0e\x00\x00\x75\xbb\xe9\x2f\x6f\x4e\x8b\x35\x14\x48\x1d\x12\xb8\x69\xde\xb6\xf4\x7f\x3b\x45\x83\x69\xb7\xf0\x24\xfc\xc0\x23\x19\xe3\x8c\xb7\x46\x7c\x76\xb3\x70\xd3\x78\xee\x02\x56\xda\xa3\xac\xea\x1f\x71\xbe\x5e\x4c\x7d\x8a\x50\x03\x7b\xa8\x4e\x62\x44\x5b\xbd\x99\x0a\x26\xb4\x4f\x60\x19\x8d\x63\x50\x5f\xbf\x00\x5b\x96\x63\x7a\xbf\x5e\xb6\x92\xa2\xed\x0d\x58\x26\x92\xe3\xf2\x59\x38\x7e\xd9\xd1\x95\x59\x17\xdc\x53\xa2\x46\xeb\x20\xe2\x81\xe7\x83\x86\xed\x87\x34\xb8\x10\x75\xe4\x3b\x5b\x3e\x15\xea\x60\xdb\xd4\x97\xe0\x7a\xd8\x84\x79\x92\xdd\x87\x83\x1b\x20\xd0\x52\x63\xc1\x08\xd7\x01\x17\xe5\x21\x70\xef\xac\x17\x77\xd3\xd3\x76\x87\x63\x58\xc2\x29\x71\x72\xb2\xa0\x23\xb5\x2c\x05", 207); *(uint64_t*)0x20000000798c = 0x2000000075c0; *(uint8_t*)0x2000000075c0 = 0; *(uint8_t*)0x2000000075c1 = 0xa; *(uint32_t*)0x2000000075c2 = 1; *(uint8_t*)0x2000000075c6 = 2; *(uint64_t*)0x200000007994 = 0x200000007600; *(uint8_t*)0x200000007600 = 0; *(uint8_t*)0x200000007601 = 8; *(uint32_t*)0x200000007602 = 1; *(uint8_t*)0x200000007606 = 0xfc; *(uint64_t*)0x20000000799c = 0x200000007640; *(uint8_t*)0x200000007640 = 0x20; *(uint8_t*)0x200000007641 = 0; *(uint32_t*)0x200000007642 = 4; *(uint16_t*)0x200000007646 = 3; *(uint16_t*)0x200000007648 = 1; *(uint64_t*)0x2000000079a4 = 0x200000007680; *(uint8_t*)0x200000007680 = 0x20; *(uint8_t*)0x200000007681 = 0; *(uint32_t*)0x200000007682 = 4; *(uint16_t*)0x200000007686 = 0x1d20; *(uint16_t*)0x200000007688 = 0x20; *(uint64_t*)0x2000000079ac = 0x2000000076c0; *(uint8_t*)0x2000000076c0 = 0x40; *(uint8_t*)0x2000000076c1 = 7; *(uint32_t*)0x2000000076c2 = 2; *(uint16_t*)0x2000000076c6 = 0xfff8; *(uint64_t*)0x2000000079b4 = 0x200000007700; *(uint8_t*)0x200000007700 = 0x40; *(uint8_t*)0x200000007701 = 9; *(uint32_t*)0x200000007702 = 1; *(uint8_t*)0x200000007706 = 0xd; *(uint64_t*)0x2000000079bc = 0x200000007740; *(uint8_t*)0x200000007740 = 0x40; *(uint8_t*)0x200000007741 = 0xb; *(uint32_t*)0x200000007742 = 2; memcpy((void*)0x200000007746, "\x22\x89", 2); *(uint64_t*)0x2000000079c4 = 0x200000007780; *(uint8_t*)0x200000007780 = 0x40; *(uint8_t*)0x200000007781 = 0xf; *(uint32_t*)0x200000007782 = 2; *(uint16_t*)0x200000007786 = 2; *(uint64_t*)0x2000000079cc = 0x2000000077c0; *(uint8_t*)0x2000000077c0 = 0x40; *(uint8_t*)0x2000000077c1 = 0x13; *(uint32_t*)0x2000000077c2 = 6; memset((void*)0x2000000077c6, 255, 6); *(uint64_t*)0x2000000079d4 = 0x200000007800; *(uint8_t*)0x200000007800 = 0x40; *(uint8_t*)0x200000007801 = 0x17; *(uint32_t*)0x200000007802 = 6; memcpy((void*)0x200000007806, "\xee\xfa\x7a\x62\x01\x65", 6); *(uint64_t*)0x2000000079dc = 0x200000007840; *(uint8_t*)0x200000007840 = 0x40; *(uint8_t*)0x200000007841 = 0x19; *(uint32_t*)0x200000007842 = 2; memcpy((void*)0x200000007846, "\x01\xd3", 2); *(uint64_t*)0x2000000079e4 = 0x200000007880; *(uint8_t*)0x200000007880 = 0x40; *(uint8_t*)0x200000007881 = 0x1a; *(uint32_t*)0x200000007882 = 2; *(uint16_t*)0x200000007886 = 5; *(uint64_t*)0x2000000079ec = 0x2000000078c0; *(uint8_t*)0x2000000078c0 = 0x40; *(uint8_t*)0x2000000078c1 = 0x1c; *(uint32_t*)0x2000000078c2 = 1; *(uint8_t*)0x2000000078c6 = -1; *(uint64_t*)0x2000000079f4 = 0x200000007900; *(uint8_t*)0x200000007900 = 0x40; *(uint8_t*)0x200000007901 = 0x1e; *(uint32_t*)0x200000007902 = 1; *(uint8_t*)0x200000007906 = 0xf7; *(uint64_t*)0x2000000079fc = 0x200000007940; *(uint8_t*)0x200000007940 = 0x40; *(uint8_t*)0x200000007941 = 0x21; *(uint32_t*)0x200000007942 = 1; *(uint8_t*)0x200000007946 = 0xb; syz_usb_control_io(/*fd=*/r[39], /*descs=*/0x200000007480, /*resps=*/0x200000007980); break; case 58: syz_usb_disconnect(/*fd=*/r[38]); break; case 59: *(uint8_t*)0x200000007a40 = 0x12; *(uint8_t*)0x200000007a41 = 1; *(uint16_t*)0x200000007a42 = 0x110; *(uint8_t*)0x200000007a44 = 0; *(uint8_t*)0x200000007a45 = 0; *(uint8_t*)0x200000007a46 = 0; *(uint8_t*)0x200000007a47 = -1; *(uint16_t*)0x200000007a48 = 0x46d; *(uint16_t*)0x200000007a4a = 0xc08d; *(uint16_t*)0x200000007a4c = 0x40; *(uint8_t*)0x200000007a4e = 1; *(uint8_t*)0x200000007a4f = 2; *(uint8_t*)0x200000007a50 = 3; *(uint8_t*)0x200000007a51 = 1; *(uint8_t*)0x200000007a52 = 9; *(uint8_t*)0x200000007a53 = 2; *(uint16_t*)0x200000007a54 = 0x2d; *(uint8_t*)0x200000007a56 = 1; *(uint8_t*)0x200000007a57 = 1; *(uint8_t*)0x200000007a58 = 4; *(uint8_t*)0x200000007a59 = 0x50; *(uint8_t*)0x200000007a5a = 0x10; *(uint8_t*)0x200000007a5b = 9; *(uint8_t*)0x200000007a5c = 4; *(uint8_t*)0x200000007a5d = 0; *(uint8_t*)0x200000007a5e = 0xf9; *(uint8_t*)0x200000007a5f = 2; *(uint8_t*)0x200000007a60 = 3; *(uint8_t*)0x200000007a61 = 1; *(uint8_t*)0x200000007a62 = 2; *(uint8_t*)0x200000007a63 = 5; *(uint8_t*)0x200000007a64 = 9; *(uint8_t*)0x200000007a65 = 0x21; *(uint16_t*)0x200000007a66 = 0x81; *(uint8_t*)0x200000007a68 = 8; *(uint8_t*)0x200000007a69 = 1; *(uint8_t*)0x200000007a6a = 0x22; *(uint16_t*)0x200000007a6b = 0x6e7; *(uint8_t*)0x200000007a6d = 9; *(uint8_t*)0x200000007a6e = 5; *(uint8_t*)0x200000007a6f = 0x81; *(uint8_t*)0x200000007a70 = 3; *(uint16_t*)0x200000007a71 = 0x10; *(uint8_t*)0x200000007a73 = 8; *(uint8_t*)0x200000007a74 = 0xc; *(uint8_t*)0x200000007a75 = 0x6e; *(uint8_t*)0x200000007a76 = 9; *(uint8_t*)0x200000007a77 = 5; *(uint8_t*)0x200000007a78 = 2; *(uint8_t*)0x200000007a79 = 3; *(uint16_t*)0x200000007a7a = 0x200; *(uint8_t*)0x200000007a7c = 8; *(uint8_t*)0x200000007a7d = 1; *(uint8_t*)0x200000007a7e = 0x50; *(uint32_t*)0x200000007f40 = 0xa; *(uint64_t*)0x200000007f44 = 0x200000007a80; *(uint8_t*)0x200000007a80 = 0xa; *(uint8_t*)0x200000007a81 = 6; *(uint16_t*)0x200000007a82 = 0x310; *(uint8_t*)0x200000007a84 = 0x48; *(uint8_t*)0x200000007a85 = 0xa5; *(uint8_t*)0x200000007a86 = 0xca; *(uint8_t*)0x200000007a87 = 8; *(uint8_t*)0x200000007a88 = 0x10; *(uint8_t*)0x200000007a89 = 0; *(uint32_t*)0x200000007f4c = 0x30; *(uint64_t*)0x200000007f50 = 0x200000007ac0; *(uint8_t*)0x200000007ac0 = 5; *(uint8_t*)0x200000007ac1 = 0xf; *(uint16_t*)0x200000007ac2 = 0x30; *(uint8_t*)0x200000007ac4 = 4; *(uint8_t*)0x200000007ac5 = 0xa; *(uint8_t*)0x200000007ac6 = 0x10; *(uint8_t*)0x200000007ac7 = 3; *(uint8_t*)0x200000007ac8 = 0; *(uint16_t*)0x200000007ac9 = 5; *(uint8_t*)0x200000007acb = 0; *(uint8_t*)0x200000007acc = 1; *(uint16_t*)0x200000007acd = 0x8a; *(uint8_t*)0x200000007acf = 0x10; *(uint8_t*)0x200000007ad0 = 0x10; *(uint8_t*)0x200000007ad1 = 0xa; *(uint8_t*)0x200000007ad2 = 0xa; STORE_BY_BITMASK(uint32_t, , 0x200000007ad3, 1, 0, 5); STORE_BY_BITMASK(uint32_t, , 0x200000007ad3, 0, 5, 27); *(uint16_t*)0x200000007ad7 = 0xf00f; *(uint16_t*)0x200000007ad9 = 7; *(uint32_t*)0x200000007adb = 0x3f00; *(uint8_t*)0x200000007adf = 0xa; *(uint8_t*)0x200000007ae0 = 0x10; *(uint8_t*)0x200000007ae1 = 3; *(uint8_t*)0x200000007ae2 = 0; *(uint16_t*)0x200000007ae3 = 4; *(uint8_t*)0x200000007ae5 = 4; *(uint8_t*)0x200000007ae6 = 8; *(uint16_t*)0x200000007ae7 = 0xfff8; *(uint8_t*)0x200000007ae9 = 7; *(uint8_t*)0x200000007aea = 0x10; *(uint8_t*)0x200000007aeb = 2; STORE_BY_BITMASK(uint32_t, , 0x200000007aec, 4, 0, 8); STORE_BY_BITMASK(uint32_t, , 0x200000007aed, 0, 0, 4); STORE_BY_BITMASK(uint32_t, , 0x200000007aed, 5, 4, 4); STORE_BY_BITMASK(uint32_t, , 0x200000007aee, 0x8001, 0, 16); *(uint32_t*)0x200000007f58 = 0xa; *(uint32_t*)0x200000007f5c = 4; *(uint64_t*)0x200000007f60 = 0x200000007b00; *(uint8_t*)0x200000007b00 = 4; *(uint8_t*)0x200000007b01 = 3; *(uint16_t*)0x200000007b02 = 0x437; *(uint32_t*)0x200000007f68 = 0xf2; *(uint64_t*)0x200000007f6c = 0x200000007b40; *(uint8_t*)0x200000007b40 = 0xf2; *(uint8_t*)0x200000007b41 = 3; memcpy((void*)0x200000007b42, "\xf0\x01\x99\x69\xb3\x8f\x6a\xfa\xbd\x6c\x10\x59\x67\xf2\xb7\x9c\x11\x6b\xf5\x2e\x6a\xf5\x49\x27\x19\x39\xcb\xea\xcd\xab\x5c\x85\x03\xce\xe7\xd1\xa6\x7a\x62\xea\x49\x1b\x6b\x2f\x86\x47\x13\x3f\x15\xb8\xe9\x70\x7e\x4a\x77\x57\x7e\x8a\xfd\x8a\x12\x84\x45\x9b\x66\xc7\xbe\x93\xc4\x3e\x84\xef\xcf\xc2\xf7\x3e\x93\xd2\x95\x99\x8c\xc2\xf4\x95\xae\x5b\x1a\x3d\x5e\x12\xef\x6e\x64\x66\x4a\x3b\x5c\x79\x52\x8b\x01\x19\xf7\x8b\x0a\x61\xd8\x07\x23\x25\x37\xeb\x3d\x9c\x09\xad\xd9\x38\x23\xe6\xf8\x78\xbb\xba\x00\x89\x8b\xe1\x01\x7f\xaf\x4e\x5f\x14\xd3\x87\x40\x1c\x45\x64\x59\x54\xc0\x4f\x8c\x83\xf9\xe5\xf0\xae\x99\x13\xd9\xcc\xb8\x8e\x75\x16\xd8\x0f\x8e\x21\xc3\xb6\x10\x42\x92\x58\x16\x92\x48\xa0\x16\xde\x14\x4a\xbc\xe7\x90\x5f\x4d\xd3\xbf\x26\x98\xe9\xf3\xa5\xfe\xbc\x7c\x10\xef\x4e\xd2\x98\xe5\xf8\xfa\xcb\xb3\xc9\x34\x4b\xb3\xab\x33\x56\x8a\x0f\x64\xf4\x28\xd6\x0d\xab\xe2\xbf\xe7\x95\xdf\x06\x03\xcd\xf7\x6f\x60\x62\x41\xfd\xd8\x9c\x8f\xf9\xfe\x55\xee\x23\x95\xfd", 240); *(uint32_t*)0x200000007f74 = 4; *(uint64_t*)0x200000007f78 = 0x200000007c40; *(uint8_t*)0x200000007c40 = 4; *(uint8_t*)0x200000007c41 = 3; *(uint16_t*)0x200000007c42 = 0x2c0a; *(uint32_t*)0x200000007f80 = 0x89; *(uint64_t*)0x200000007f84 = 0x200000007c80; *(uint8_t*)0x200000007c80 = 0x89; *(uint8_t*)0x200000007c81 = 3; memcpy((void*)0x200000007c82, "\x05\xb7\x61\x5d\x7a\x2b\xa8\x3f\x59\x16\xd5\x85\xe5\x29\x06\x69\xa0\xc2\x43\xe1\xc6\x5f\x43\xd6\xc7\x68\x07\x67\xf0\xda\x68\x05\xce\x35\x66\x41\x3a\x20\xf4\xb8\x66\x4b\x77\x79\x9c\x5c\x60\x61\xd9\xd1\x90\x75\xd2\xf8\x9b\x88\x0c\xaa\x62\x2d\x3a\xa9\x10\x8e\x52\x22\xe5\x53\x36\xbf\x78\x50\xd2\xf7\x99\x0a\x13\x14\xb0\xbe\x81\xd6\x06\xf8\xa9\x9a\x67\x05\xe0\xac\x44\x87\x20\x72\x36\x6a\xba\xea\x5f\x97\xd7\xca\x08\xed\x1e\xb2\x5b\x70\x7c\x92\x99\x1e\x55\x37\xf9\x45\xaa\x40\x1d\x76\x13\x49\xb6\x28\xd6\xc9\x28\xc1\xcf\xe5\xb0\x9f\xd1\x32\x72", 135); *(uint32_t*)0x200000007f8c = 0xb8; *(uint64_t*)0x200000007f90 = 0x200000007d40; *(uint8_t*)0x200000007d40 = 0xb8; *(uint8_t*)0x200000007d41 = 3; memcpy((void*)0x200000007d42, "\xf0\x4a\x78\x64\x8b\xb1\x3a\xd6\xc5\x3b\x44\xe4\x2e\xd2\xf2\x4d\x32\x05\xbf\x51\x61\x67\x4f\xf3\x75\xec\xfa\x9f\x71\x0d\xd4\xd5\x2e\x29\x77\x9b\xc4\xc1\xd4\x1f\xaf\x1b\x2e\x02\xfa\x2c\xb4\xca\x6c\x44\x96\x81\xb5\xc8\x8b\x37\x75\xf8\x2b\xab\xde\x22\x58\xf8\xa0\x01\xd8\x11\xf8\xb6\x4c\xe0\x75\x3b\x22\x8c\x16\x18\x09\x77\x0f\x39\x16\x0b\xa4\xea\x92\x49\x0a\x38\xf8\x2c\x3f\x18\xb4\x4c\x81\xa1\x48\xc4\x8b\xbc\x4f\x71\x6e\x64\xa8\x5a\x98\x5f\x35\x70\xd6\x13\x2a\x4a\xc6\xe9\x7f\x0a\xe7\x29\x65\x82\x87\x9c\x5d\x4e\x27\x7b\xe3\xd5\x86\x7d\xc3\xdf\x26\x06\x87\x9b\xd5\x28\x12\x25\xa3\x4f\x3f\xeb\xa4\x36\xee\xc1\x6d\xdf\xbe\x61\x15\x74\xbe\x64\x5a\x71\xc5\xe8\xbe\x49\x4e\x27\x91\x83\x33\xf2\x43\x1a\xef\xf2\xe9\xfe\xd0\x60\x84\x28", 182); *(uint32_t*)0x200000007f98 = 4; *(uint64_t*)0x200000007f9c = 0x200000007e00; *(uint8_t*)0x200000007e00 = 4; *(uint8_t*)0x200000007e01 = 3; *(uint16_t*)0x200000007e02 = 0x40f; *(uint32_t*)0x200000007fa4 = 4; *(uint64_t*)0x200000007fa8 = 0x200000007e40; *(uint8_t*)0x200000007e40 = 4; *(uint8_t*)0x200000007e41 = 3; *(uint16_t*)0x200000007e42 = 0x860; *(uint32_t*)0x200000007fb0 = 4; *(uint64_t*)0x200000007fb4 = 0x200000007e80; *(uint8_t*)0x200000007e80 = 4; *(uint8_t*)0x200000007e81 = 3; *(uint16_t*)0x200000007e82 = 0xf4ef; *(uint32_t*)0x200000007fbc = 4; *(uint64_t*)0x200000007fc0 = 0x200000007ec0; *(uint8_t*)0x200000007ec0 = 4; *(uint8_t*)0x200000007ec1 = 3; *(uint16_t*)0x200000007ec2 = 0x3001; *(uint32_t*)0x200000007fc8 = 4; *(uint64_t*)0x200000007fcc = 0x200000007f00; *(uint8_t*)0x200000007f00 = 4; *(uint8_t*)0x200000007f01 = 3; *(uint16_t*)0x200000007f02 = 0x2009; res = -1; res = syz_usb_connect(/*speed=*/0, /*dev_len=*/0x3f, /*dev=*/0x200000007a40, /*conn_descs=*/0x200000007f40); if (res != -1) r[40] = res; break; case 60: syz_usb_ep_read(/*fd=*/r[40], /*ep=*/0, /*len=*/0x1000, /*data=*/0x200000008000); break; case 61: memcpy((void*)0x200000009000, "\x57\xbb\xa2\xf0\x4f\x39\x45\xda\x7a\x47\x03\x77\x10\xf6\xd5\x3d\x8d\xfa\xd8\xa9\x6c\x57\xe1\x1c\xf5\xfc\xfe\xe4\x34\xfc\xe8\x80\x38\xe1\x90\x4e\xcc\x27\x12\x33\x41\x18\xe5\x00\x2b\x0c\x10\x7c\x28\x6e\xb9\x03\x14\x23\x3f\xd5\xce\x1d\x9e\xa5\xda\x00\x76\x74\x11\x02\xd8\x85\x17\x46\x3f\xf1\x18\xbd\x93\x12\x82\x41\x2d\xe1\xf5\xea\x71\xeb\x2b\xec\x91\xb8\x2b\x7f\x7b\x64\xf8\xaa\xe1\xd5\x8e\x32\xde\x1d\xee\xb1\xc8\x26\x4d\x59\xd6\x39\xa1\x94\x5f\x00\x90\x27\x5e\x6b\xdb\xf1\x8e\x86\x68\x5c\xcb\x60\xa5\xfe\xc9\xc7\xce\xba\xc5\xd0\x5b\x5c\x84\xe6\x11\x6f\x89\xd4\x43\xfa\xd3\xce\x74\xd8\x20\x80", 148); syz_usb_ep_write(/*fd=*/r[37], /*ep=*/6, /*len=*/0x94, /*data=*/0x200000009000); break; case 62: syz_usbip_server_init(/*speed=USB_SPEED_SUPER*/5); break; } } int main(void) { syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000ul, /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/7ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x200001000000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); const char* reason; (void)reason; if ((reason = setup_fault())) printf("the reproducer may not work as expected: fault injection setup failed: %s\n", reason); use_temporary_dir(); do_sandbox_android(0); return 0; } : In function 'execute_call': :6698:17: error: '__NR_socketcall' undeclared (first use in this function) :6698:17: note: each undeclared identifier is reported only once for each function it appears in At top level: cc1: note: unrecognized command-line option '-Wno-unused-command-line-argument' may have been intended to silence earlier diagnostics compiler invocation: x86_64-linux-gnu-gcc [-o /tmp/syz-executor1921907470 -DGOOS_linux=1 -DGOARCH_amd64=1 -DHOSTGOOS_linux=1 -x c - -m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -static-pie] --- FAIL: TestGenerate/linux/amd64/20 (1.36s) csource_test.go:157: opts: {Threaded:true Repeat:true RepeatTimes:0 Procs:0 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:true DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}} program: r0 = openat$ubi_ctrl(0xffffffffffffff9c, &(0x7f0000000000), 0x44502, 0x0) (fail_nth: 1) ioctl$USBDEVFS_BULK(r0, 0xc0185502, &(0x7f0000000140)={{{0xa, 0x1}}, 0xc5, 0x1, &(0x7f0000000040)="e1ee87a8f76c257b75c1073c7058be82fe3362bbcca54df520d1ca8fa91b50810f876d1fab0a1cc214c35f4e266e71643d8c95988087e46a87c1a715effe06169ab65fa18e5414404f30c0005561397ed1d9557c66a994b954efa714985a2ae409df8111fa8a361408734d15b30cd9ab3fa50e088b3d2bafdc689ea3cb7e52a9fc7f5d48d245d4097bb933725bd9e29371cd7780b4ec8d6e2dbf861aad04d6594f5ebd2ffab1e8a68c5157cae2f46f6fa3aeac0e3f8b7b97630f346bc3276e53ca72b417f8"}) (async) ioctl$F2FS_IOC_SET_COMPRESS_OPTION(r0, 0x4002f516, &(0x7f0000000180)={0x4, 0x9}) (rerun: 4) setsockopt$inet6_tcp_TCP_REPAIR(r0, 0x6, 0x13, &(0x7f00000001c0)=0xffffffffffffffff, 0x4) setsockopt$inet6_group_source_req(r0, 0x29, 0x2b, &(0x7f0000000200)={0x4, {{0xa, 0x4e20, 0x4, @private0={0xfc, 0x0, '\x00', 0x1}}}, {{0xa, 0x4e21, 0x1, @local, 0x9}}}, 0x108) ioctl$USBDEVFS_GETDRIVER(r0, 0x41045508, &(0x7f0000000340)={0x4b, "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"}) setsockopt$XDP_UMEM_REG(r0, 0x11b, 0x4, &(0x7f0000000580)={&(0x7f0000000480)=""/222, 0x8000, 0x1800, 0x1, 0x3}, 0x20) ioctl$BLKSECDISCARD(r0, 0x127d, &(0x7f00000005c0)=0x4) ioctl$DRM_IOCTL_SYNCOBJ_FD_TO_HANDLE_FD(r0, 0xc01864c2, &(0x7f0000000600)={0x0, 0x0, r0}) ioctl$DRM_IOCTL_MODE_REVOKE_LEASE(0xffffffffffffffff, 0xc00464c9, &(0x7f00000006c0)) syz_80211_inject_frame(&(0x7f0000000000)=@broadcast, &(0x7f0000000040)=@data_frame={@a_msdu=@type01={{0x0, 0x2, 0xb, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1}, {0x2}, @device_b, @from_mac, @initial, {0x9, 0x5bb}, "", @value={0x1, 0x1, 0x1, 0x1, 0x9}, @value=@ver_80211n={0x0, 0x2, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x1}}, @random="055ba71928a79f8625942b8e22a62e7d0ef5d26afb5923f0a1"}, 0x37) syz_80211_join_ibss(&(0x7f0000000080)='wlan0\x00', &(0x7f00000000c0)=@random="f20f01439229172ec7637d66e2f075", 0xf, 0x2) syz_btf_id_by_name$bpf_lsm(&(0x7f0000000100)='bpf_lsm_inode_getsecurity\x00') r1 = syz_clone(0x1000, &(0x7f0000000140)="ff427f0e4659ab5893d3badb31b3b1b89da52b0f3d3489a18a5837ba6e04f21cf0581de7946c2e29adef18036a10ce361250a5667064b4d456c64c307d63cfe3422c3fafd450315e8366", 0x4a, &(0x7f00000001c0), &(0x7f0000000200), &(0x7f0000000240)="b201d139a4344e463d89913bee9c68af3f34090b9f6244af88c8fe07ce4ffe9b81210da0fc44559d985ad5bb1dc9672ce4d1df554aafb78053f4") r2 = syz_clone3(&(0x7f0000000440)={0x100400, &(0x7f0000000280)=0xffffffffffffffff, &(0x7f00000002c0)=0x0, &(0x7f0000000300)=0x0, {0x2a}, &(0x7f0000000340)=""/21, 0x15, &(0x7f0000000380)=""/120, &(0x7f0000000400)=[r1], 0x1}, 0x58) syz_create_resource$binfmt(&(0x7f00000004c0)='./file0\x00') syz_emit_ethernet(0xd1, &(0x7f0000000500)={@random="44f71c1405a2", @multicast, @val={@void, {0x8100, 0x1, 0x0, 0x2}}, {@mpls_mc={0x8848, {[{0xf, 0x0, 0x1}, {0xc, 0x0, 0x1}, {0x2, 0x0, 0x1}, {0x1c}], @llc={@snap={0x0, 0x0, "67a3", "c85dcd", 0x88ca, "e303e8e52af9a170943b5f0b2861a3effb852560b1007d1865564aed84dfbf75279a5a950a513b7559f042b12f0d592b5a8bb399b9a071f4d2b9fb4903fb61b866bd20c43a437cc6915d6e19f058e23b4cfbf7d66b0d974aa6f1687cc06941e28e8515a079742b9f8383f09b8e29493cdfef26beab29802d1e85d1a50ef5670a049551dab256fd3dc3fd667fd4a29c752e4f3ba700720a9fe2ecb47e232cfbb80832213bbaf3"}}}}}}, &(0x7f0000000600)={0x1, 0x4, [0x58f, 0x8001, 0x2bc, 0xf]}) syz_emit_vhci(&(0x7f0000000640)=@HCI_ACLDATA_PKT={0x2, {0xc9, 0x1, 0x0, 0xa2}, @l2cap_cid_signaling={{0x9e}, [@l2cap_info_req={{0xa, 0x4, 0x2}, {0x5}}, @l2cap_move_chan_rsp={{0xf, 0x7, 0x4}, {0x1, 0x1ff}}, @l2cap_info_rsp={{0xb, 0x8, 0x64}, {0x1, 0x9, "7d0c09e4aa3ea5a78a46cf8d66857ba4107e5cf880621c4c433cdb0a8bd03a4f9c8f390145f9db0c1dd85656d6b3dc38afb84d7e118e1cbdd6926b1876be6a6553bafa1bfef971281350403e18e82e89f42bb6d51b166bd96dabf25dbb28f01e"}}, @l2cap_disconn_req={{0x6, 0x64, 0x4}, {0x9, 0x1}}, @l2cap_move_chan_cfm={{0x10, 0x2, 0x4}, {0xffff, 0x9}}, @l2cap_create_chan_rsp={{0xd, 0x4f, 0x8}, {0x6, 0x8001, 0x8, 0x3}}, @l2cap_conn_rsp={{0x3, 0x48, 0x8}, {0x4, 0x8, 0x6837, 0x4}}]}}, 0xa7) syz_extract_tcp_res(&(0x7f0000000700), 0x0, 0x507) r6 = openat$cuse(0xffffffffffffff9c, &(0x7f0000000740), 0x2, 0x0) ioctl$DRM_IOCTL_GET_CLIENT(0xffffffffffffffff, 0xc0286405, &(0x7f0000002a80)={0x7, 0x4, {r5}, {0x0}, 0x100000000, 0x3}) shmctl$auto_IPC_STAT(0x8, 0x2, &(0x7f0000002b80)={{0x1, 0x0, 0xee00, 0x5, 0x9, 0x8c, 0x6}, 0xe0000, 0x3, 0x6, 0x2c54, @raw=0x7fffffff, @raw=0x5, 0x3, 0x0, &(0x7f0000002ac0)="34d14592330d2effe2b242ce1c79f97a737dc0f7745d84eec469048ba4772d3ca2f34e3a83b5edadf6550e5b412cf5ee749b3324b30032ad2ae14cfa29ef4ecf97416fdc53d73bb80ea139aac1bf364ddcbe7409342155ae126f63d9e3ab1d5104befdd9", &(0x7f0000002b40)="e550413c2f469c9ef08eb7193b0a242e58befe012aa89d7c"}) r9 = setfsuid$auto(0xee01) r10 = getuid() fstat(r3, &(0x7f0000002ec0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) ioctl$DRM_IOCTL_GET_CLIENT(0xffffffffffffffff, 0xc0286405, &(0x7f0000002f40)={0x9, 0x6, {0xffffffffffffffff}, {0xee01}, 0x9, 0x8}) ioctl$auto_XFS_IOC_SWAPEXT(0xffffffffffffffff, 0xc0c0586d, &(0x7f0000002f80)={0x1, @inferred=r3, @inferred=r3, 0x0, 0x0, '\x00', {0x100, 0x6, 0x4, 0x0, 0xee01, 0x4, 0x2, 0xe78bc90, {0x9e350, 0x10}, {0x4, 0x7}, {0x3a83, 0x80000000}, 0xff, 0x8, 0x7, 0x7, 0x5, 0xd275, 0x6, 0x1, 0xff74, 0x5, '\x00', 0xf0e, 0x400, 0x2, 0x8001}}) msgctl$auto_IPC_RMID(0x2, 0x0, &(0x7f00000030c0)={{0x80, 0x0, 0xee01, 0x8, 0x3, 0x3, 0x6}, &(0x7f0000003040)=0xf, &(0x7f0000003080)=0x29, 0xfffffffffffff801, 0x6b4c, 0x0, 0x3, 0x800, 0x2, 0xbf09, 0x3, @inferred=r2, @inferred=r4}) ioctl$auto_KVM_GET_DEVICE_ATTR(0xffffffffffffffff, 0x4018aee2, &(0x7f0000003140)={0xb407, 0xee01, 0x8, 0x8}) statx$auto(0xffffffffffffff9c, &(0x7f0000003180)='./file0\x00', 0x4, 0x2, &(0x7f00000031c0)={0x8, 0xfffffffe, 0x0, 0xa, 0x0, 0xee00, 0xf, 0x5d3e, 0x5, 0x10, 0xff89, 0x100, {0xf, 0x8}, {0xfff, 0x2}, {0x3, 0x7fff}, {0xffffffffffffffff, 0x9}, 0x0, 0x3, 0x7, 0x8d6, 0x383d, 0x4, 0xb0d4, 0x503, 0x2, 0x0, 0x5, 0x2, [0xfffffffffffffffb, 0xff, 0x3, 0x259, 0xbe9, 0xff, 0x6, 0x800, 0x9]}) shmctl$auto_IPC_SET(0x3, 0x1, &(0x7f0000004300)={{0x5, 0xee00, 0xee00, 0x3, 0x7ff, 0x2, 0x5}, 0x2, 0x401, 0x3, 0xfffffffffffffffe, @inferred=r1, @inferred=r4, 0xfffe, 0x0, &(0x7f00000032c0)="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", &(0x7f00000042c0)="14dc2c36c1a4730f33f0a47756b437792e9ac78f742f821e328341e02b"}) newfstatat(0xffffffffffffff9c, &(0x7f0000004600)='./file0\x00', &(0x7f0000004640)={0x0, 0x0, 0x0, 0x0, 0x0}, 0x0) fstat(r3, &(0x7f00000046c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) shmctl$auto(0x0, 0x7, &(0x7f00000058c0)={{0xffffffff, 0xee00, 0xffffffffffffffff, 0x2, 0x9, 0x2, 0x4}, 0x6, 0x4, 0x4, 0x1, @raw, @inferred=r4, 0x40, 0x0, &(0x7f0000004840)="be999eee258959e93a2aa68dc2cb1d93b819d2b9d9e678e2e2506d54510e920728d75815bb8027e6a021febb8f0996f8add6877b74ce5eace74504cf3a4f3ac46a5a59400342351940bfb8767dd9955c9e9a9941", &(0x7f00000048c0)="3d02a0f459a5ddd4061a0de0adb3592aa0e43ad29d3b8bd312b7421dc4b60bfffebc736c2641cfcea55e64d661b241b811f9d475ae7c0c87968d7b90d6276a72b2d31dc2cb9138c51924964f3f32b8a27b281be970da82eda0cf1a81219ac711d9f503ef0e7d51077d779ebebc55a585ef9161b64dbf1e3f8aefa740e1a00338d2d57dbca0f1461503bb27c6b47dd6d82cd632bebb9456cc3e3f3d76768bc35f3697c810ed5613829785205bef0b3de10eb441bb28f29c9d87e3defb522e2f2dd6e365afcac8c11ce2258caa977571e46a55d79d9c24bd49e139841470373ea8936acc204c2d714fbdf29459c6a4798bc9186c58fa10a9c17afe6b612cce0538c585394309c6c3a334fc31da33f2d63fc10a2f5c931b02fd8c8360b946fb85c2f589e07d2cbfa1e843bc10582344dfc9819e3df5dbea169fd157d488bcf2fa2124478b8e2b269227b037f9dc38bbbc37c3b9fe1c930e987304b7e719e9c421b2800f9659f07a16a5936ff2c74554176bb565fe5e3f04ffaf72c9954355180a491c9dd86bb617efa37d9f1f5723220a5d1a5b4bf941fcffde19069793542b7701e4bfef85b497163fe0a04f89bc5f25b9c58343f0abded17b1a0d8579a48f54746d06144b9b5a53aea2695f14557e62550f8f7b487c422b577db91bec6c93751155849d5cc078be8631a47895a935a646fc74d504014b83174493ced833695463be36f27425fbd59d163897095051585f2200afdfd0cb91e136ed1603930dd84f22a45a9db1e52a9405b45bb9ce027baca996abde38bcc837e1f19298d397133e7669e442c5163950643cb22dc9bf34303b65074404a8ff27834ed2921d64d6f93963ae58c170e29f8e119795cd42efc197bbe233957c4e295dd58db67e5153152729d224a00ed2a40ed79ff6f696d11c43f01387e8c39f8631f830f67f8d95bc30371d168b7ac11803b056d6c60dcef32900a8605f3785b60ffa2271238370ffaec972526efce64ef3b8cc41cf49144305cebd620bba9add9e49aa41b459b6342b8d4c1b39c2572e12a47fcf6a436ba1e8874258f11645fcc56f1bef206c95dddec485c35a14cd1b9d65efbee3704b631800f21b67c2995c81f533e9387f7f2e4387af7aa892e77406c298ae7904f142a5f941f7c16f2f0bce8ac9ccf00daa0f1775b6f70baa0b8629754a593c4d23dc56e3c1de526ed8b34fcf9edefccff8f9b574a8110bc84b3424b5280585f4a3970469c04273c36e6e22eecbde905305e54a77380ef2366591e56e2eb0fa5d1bd4b4651fad0fb6aea4fce2605ce9f1b8f663cf7f3eae7aea4fbd2bd568b13bc558762f53b12524edc5d0eaca3f9be7bf4f03c05a99da75dd192501c267c53bee2665ad27b2566eac581888fc215ad99331e1de397379fa5e177dbda1cd64beb7d18f76868d1838a17134aa37d4fbe2455060d70cf6f00756269d15f8d74e46255a6021b530a12c8fe72922df934d38e4b8692d4b8d76ba713cc6e10989689ad58fbebecf2bbcd3e9652d22af0441ee1647c74256017080f560b0471f73019753a783ec7ab7438fc15019f84d7dc290b0e2124958e7da270ceeebe6d8ee2f542e1af9655379dd9ca981213bb8bb125d44c53b5f0671279d5874237ea79ae00c00ae7bf55571caba6d4682780601470e9c913e98a7e4c3480712e0ae10291b1d22f35b6a1383e6aea26e9d90bef2cc8735febc2488152207c37bd7687f97828aa8560ae5f3ef16299e3aefb2b840b91950164f37d2c8c02913ba30b87ff3b82bf6d622f466223618808f10adb3205bf97be708ad8d1208d951a5228b80fde1c9d56f5008376c2e75bd6520bf861c5abf46d423d373242d877b83a0f564aedc627bea86268f574810980f857122bee21fcf001c0ada09ee1402fc09adf21a48ad90fece099b4717b57dbbd0cb3640df9674326b08afd5cc11aa5eb508b731ee0df4c8e20465bfaa73848ee31fd0116daf8372a1a9e0fc0cc411b044b9e932c004a0e9bf7d56c8e056a927feec4a97a78b1c172431ed601bd64097bccdd1434f6beaf375ff77fa539bfc56e17e8c0cf91317d867047c1e4b32e2c723c59543e7701f39677c66fbd89076e66aa24610ea8870f3ce43f4e5267bba84a91d62b29ed4ee047c6fe4e17f6ecd0f9d901468e4702159a5a132149c21673ebae516655c2052f1175c5eb236f69f228feccb1be5a118d82faba212e20b8fe366e3274c5749e5ab814b85ca92d9df930b9d16bf886f945cc8c09a0851a62815cd273f867c99f05e77a398f242908636a64181edfc8efdf0d6db008b4e6edb1bd0c9a2858705f1d454213950015cf8d381949b0569d2c55df52d92db7a1bb04b6feda838ab433e413071d49dd0f52a3fd3f4be2b20d64b672c157ec648d5b7596e1e5f4b2ffb329f039fe931efdc2659900a4b94d4ff4dfd3ccde751225f8ae83dba6dbb61282d113ebb7d59bbf5b40302dc81a8a02b355b986ded8d9931059964113d271dea36ebe923b4bfa094c23dfcaf1faac13a662c9d2353a8298681aebdadba2f8507647dc4b92519c23f9005ce78d8e3ed911f0e159f7180b9fa72778a0f834da68ef823be229ab83c80457e961e23e065a85f35e3531345f3a594104b8a90cfea7e46b7512fe2d120d23638c381489b80f881f90b04b5a0cc9435a9c2273f63b7d1fd4ef90d472e010cd3fcda57e5fd44cdda15a8c84566d77cdf99c8e6437767e5bd4c848585dbec122b36bd91ab8a587a435b4c0a7ac3b2d2f233ecc50e06d8b0d41a70c75c967cc6918725a55f3fe2a32d9ea8b274b6429a3bdc62473b39a2c8c82f02a28d91c5a6ed6e070dcbdb6be59acfba1eb8891ecca6f9bdec0e41ad4015f5d9ef35cee443580385afa9e4b339015b1dd784d095e02c7e0acdf36e15ab2ddb2c141ea74426dd622d49bab4439ddfcb8140d7714ca506b3ca64bcbf530dcb878a7c9b4a1130e0dc1ad1206dd51681c667b208c133f605ee9bf9d1c1b554addba4c83492b4c1b431a15ff3753f0cd8eb5884447ff28811f11dd9e6a4bcd2e9985669b7ec966bb6c4958d432405d0aa2df99b20293990ef39e002a33d462a795b602d92d840b70feb36dfa5cbe7fc42860c1f8dd6821428f85dfc18282348d9bbfee4fdbd53390999756eb30b94d6a1aaf67052ab0457e16150c72be645d47881bfe10375123b6ebd71fd4ca50c6826be5d947d07ad75f25d5baf46771eaa27ca408fbb887f480b79ed7b172f18f9a7410a58b57ea49b9dc722e5fbd8e0e6d905fa070874adbc3abc885662c76e63a96aa813654006ce0e1a1d9a051bdc70ae1d86ff9a936600a808904b0d5ceb896964f5780a357b16c945ed57f93d580c026bea1c71a855f534019ebaa392fc1b804afff8705e19357072df5c8f797ca3899da57e9d06be838ddf6af5bcd436dce1ff38c8ea71e609e340d418dbeab2fdf4694f94535caa7e0e855804e309e5a65f5caf7473867ed5c75b76c6ae8f4a2eb393b5eff0aea9b94ceb79a59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lstat$auto(&(0x7f0000005940)='./file0\x00', &(0x7f0000005980)={0x100000000, 0x7d80, 0x1, 0x40, 0xffffffffffffffff, 0x0, 0x0, 0x7, 0xfffffffffffffffb, 0x0, 0x2, 0xe6, 0x2, 0x4, 0xa03f, 0x10, 0x7}) syz_fuse_handle_req(r6, 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b288bc543af6afce718dfe86858edb5f0d4ed65dbe4121fddcaa1fe589a0a0bb87b489777a0b986331834aa20a92a2896f532b7685ffeed6403f10c820ba714018e3ba40ae500300d65b528af737ba328e1659dc0c499b49e77a859783358522b6a44edf3682c08ae1cce07d8b35cad770e155fc243a3fdc7ddab4c54d8d873f13cf8f6f6e17bff0db45b6fb8d2c466667985bfee1e48b4588af9e11e537b2b1d61a1eecf050d274e9381678998f40cd6d51eda410ceab9f913ab503ed1883db93d98448fdccb8cc7eb603c731272563ea585865de33e93d44db73bdf76186786d12986383b9654a3d0f1f1aa5ee7714585df93a6e50a4cb8ae6d43a5a24d175a77a1a65d0e13bf4caa6ece20567205b544bb7b40911621a20deee12aef0ce38ce3d458ca09892eb8f5abd2c7ae9df1a372efdaceae8cf9aeae0674a105f3dd81c865cddb3f906a6f705f127664cfd105f75c2427de9e083d8509e15ca8d1be7704ea4a5d7d7361c92886ab7714f1842cc81de3bab5f2e1a3321fcf29e1f19bab01bfe22986f290210173bb89fd94bd8aa8cdd077b2ecd218a0a0bdf7dcb5c55d25179414d91fb24a7a19b5f7d07cd033158d738ede5e5b3bee3df6885ec45be3b7b4e9c04c52d9a1f9631e3f0071ed47715dfa55b4051d4262cc1acf9b98224f60fb3bedadf57195f7f60b0e2d7053564baa42743998688a8cde02c08637988d43c5053d87718c27a6cfefbbf6a7ce4a1c3e4a3f1c6bb19f78f62883709cce44f88ee772e72cbef74f37a0ebbe606c80ff3015df6ed850eb56179899e57be0fbf58fc03493e825be2319ddd313d7224e41d98c6e914b5624fd98ac39631dabfa90bda0d492db85201d6d71394a5dc2936569c52e709d502b6b27de458220aaff755f9484733c26f9d8dc3f7953098891deb9284227745793130ef6c63011954bc64dd7b578e2fa38cec94f317380dda6c2c3d858ae8dbd2af3d491e94f22a73b780381dcbae60c780af516aae40c3b69f816762d644a19b64c45b7f61874632a3f6753dbd0b413d29ed285ec9402ff9cd41fe95936624dfc8fd9155f8a598eb4f83a7a488161e7fb0cf4679bb5920d6eab1d071228406ba0d2f70ec04334600ce261cd270ba8339d00b4693bf6c6db74ca7eebcbb07a000cae8b16170326e73ea985695176c27c21dd48c1f68157c165db8836a63fdfa1d42c67be80212b3299efe8369a8151980093cbb802ac69d3f0b50cfd31eab47d930fff9760462deaa667bd34cfb89f5545d73def8ce373c41dee4f2e43116cead5004d7d446c308b50f6ab9468d292e4c8f225845a9602178da8eb75b654801f7f41af25f80231f8e1910d2156cb0f57e6b09e4ba6dbd44f70585cbd36ce9b8a3e98da1ff79c80b73d29db40fd1ff46c1a2907ceb48bd6ff0bf710df05c8a3cdb3725bc962a1596025b46934c279e8adc81544d0e5db5a8ca4426bc858a6dd9cd639037cc65f1075c52295dd546401e16403f1360f32317bd26addb7822d29eb966a1a8405d418163b6f056c99c0220ff802ba994387577c33e9ecfaa2eade4d08ffdf08482d19e4042be1c6bd18cc0648a31b22b527f0764ed83a28530633f110f6bc4e299f7badcb7f9d7fe45da9abcdcaafea56c0b2aee9d67d9da2a7088aac5c6fd6d507c36fb9adaf84c12b372b0eeedd21911c8e7ecd2a831a26b428b7e1609e5ee87741fca84a48bf0792daa13cedb2e96f55c4c45d4b563c91f31b3bc20e8ee4cdc685d3c4d0ede13172f595621bd7537201241295f6521d677276887f291fcdffc62021c558cfc657e8c2db9b7cc18d3ce37fff23e88cc1e2503613a09da72e2008839505a7c347833fb256a7cb50ad61d29a7a6edc99c2429f7eb82eaabae84f83955bbb3abdb9873640fb8a68ef071808d3b5eb5b595fa2fc0e1e9ed21719239c150b746d63347c04d1da59fc677bbedb3a88902132f4effe836cd93fb2dc66e988fc59b0a56133fc39d1f1c560f744f07bef784a6b682f5f5eb55a58e0c6ed7ca8f1576f3fce1465232967f41e66582cc9284b42e356c3a1cd0b5875ad5d42bc4e286eb5601d9b784c284aad19a10b514a31b2b4487aaabb106db03c84122f9d3f6a2c1b8025f430486113fffd1ac7418aa2c213fe30f29e5dca95af991cbfa38d7508408abaeffa573f7aa4ae796302ddaecab0cd851ad807421c4ba2b98f6ddb61903109e38cf2a81dc33fe94d09f457f4ed6165fa161fc9f0ee81eb4849e289d7a3491c97e2370b99e136796f732582a153cb19c3812a03f46de63152a97169f86954901cd88ba9d633e3a2fdf57d29b94ee036bbda59a1a7145c792ddace5100aa26ff8759f0e0e86fcb76c10f97655a663667278f5de7cf3b0c4966cb5d06b75f7db70428516e56b814f2234e45f9dbda4469e2b9f2b32c2947fc67937110cd532c08a16e90a815af7498628532329d00a8ddb323cf695d1f07fb424086fe16b14f332dd85467de376026dbd3e24b2941aab923cdfcbbf5be82d6d2228bb1444f7297bf5c2ac96bb873d12a384e215a9f8c5ab16f18b2389f190396f1a5ff86f91270d517f57a442fcf34110f543239ade76d9bd6a82e6a2c5124b6138fc81bc4db42976d0bb42c0cc5d45d496ef41ecdf666840a59bf8bc201037935944748f9229271ab44069f702f736e3528718de1f615736d0f9e4974db11c30579122e611228b9fb8caf4873640adaff7548bfdc44e84226d7a80e922ab3c545a4f3209424efee5ecf5871372b14616f9f13f112b8dd5a0036700d28cf2e15bf63516e493e78e5e68acd0d2991c3ba42cef9a1ef8621f79ff2fc81546150fe4b0d2f8c4da60a11af5da15b2380ff4032bc7677611cb8638c3609c136172714577cd3a3988078cd89f12623e9dce82efeebb3fc8633c85a60293622e065d113e787768f0fffa9f629bb41fce5b8bb0fe73cd7b23b418d1b9127622b80b4e264af4fbf5f552d0d61cb1f09416a296cecf89e328b2ec20b3535cad54adca5e19400d7e3fd5f58b1567e61983a30707b677b134311f9c7a7ad49b38722ea13e902dc118902beebd9a265152c61885d281bb85d6d008fc70c3ed8c47d9ec95eac54bc894cec09f8dbcb7931708a440c9a27ebc74646ecaee8701961c3c658697ebdd3d8977c46a3d4b5e6aa0da3f1cbcd2393e91d9f4e7ff9533f8732e169a2be9d8993cea4c7ef0d7ae87fda6c4dca236096b06795c2b4cd996e972ddc686ce6ca9e3873d5f41921e0b5fb8dc1d6293a75595157aee7026331c03c1e506be6437ca00fb907298fd436ea083fe59678c757461a247738edb3cdc692196004e1fafc96e65388016f6e656ff805998ba68fb546fa7800090e50db5e8614c7c440fc8e77a9e282fdc681685fff358ebeadcf1ae222318389ba09206e309a385333066d0d7b9a3c24699dbfa2c4f8b6f11f25f8570e4a36e92b86b04a937f59b3ad143cab807831dbd25e794a8df189649ebcf6c2b1a81ae36f7ce52438bd338c4885cfbb331040687e1f94b51f0134f5cbd8b3e6446678735c1641c484f3817f038fd29da6177eb17739f4dfefd0a545747dbe12d253abe8b0313351918e6d97009068048ad1fcbab1a32c68c70965087cce5669b12a868ed27321172509b691043efad8aabfa0ec60e84abc8d4947e12ea1864b99b0a98e4a867429e78a9447e777136475a6721d42fe622b67ee3ce003222cb80c5db4a4bad2fa9c78ba3cb1b2bbe7311a9e118181dcd9cd85a9fea4ac6efb7a2ba668b5c521e292952116f48fc0b6a158b2418232b032dbaf2d80f00f43eea9e42dd57db2852fe704ef796bd383d448166e9f64f78c51d054d5e98220990cdbdd0ba7f3e707934320d8cd2f4532bccda6ae077294c6fb47bd72eda307b001e3fe450908102b69483c42eb47dfceb4c4704624634dfe7c57f1e67cdea81f47300aa6a745bdb512b95d8d9904f2c839475fbf5ca3c47baa65c21bd37931277c304bd0bdaaa322bd8d2c8d61ce863aa12f012e712963875acb24c9fa825e28d1e3f54a0e20e6b328d1ee6fb3e9a0cb2a1a1a3e77999bc46ff30454d75e6a470ec4cc0b6826ebdc6dfa584456a9c7cec1652be252cec59a88f62a3a9065eb27143889c98514e4b39c16ebd514e4e8290e0b3432cff78afc0bead17bb78ebbe606d1c6cfea2e360077c5f5103261eb0bd9d4fc6d2f44ec17f428ec9e7a20fa89cacfc11677aeb5d3ebd7e51c992a7faf10b6bd5f086d754f679279ae967afe6014defe2937c27cb4342ce1f5c621aa74bd7c7d3b6a73a5cfcd2d40f3340b6cd725c30fa73050e9fe4910d64a9a29f3e5cac8a93c8279a33700a0aae7f138c0e88bebf07aa2cb20aaa0e322f5a81bff01e3af408b393bc937d7dc8f60832da73a21e69579a1cd40a54cdebfa648fe1131c678fb73fb8559db9317a194b527665edefd6dc52727cacf16008271ebd8efd24c9896c9c51aca17443403bd4cd2771e377290b2702441e7b2aeffe0cc95a4e600bef72ab5e6fc", 0x2000, &(0x7f0000005b80)={&(0x7f0000002780)={0x50, 0xffffffffffffffda, 0x7, {0x7, 0x2d, 0x8, 0x1020000, 0xfffc, 0x401, 0x12, 0x6, 0x0, 0x0, 0x40, 0xce}}, &(0x7f0000002800)={0x18, 0x0, 0x6, {0xbb}}, &(0x7f0000002840)={0x18, 0x0, 0x1, {0x5}}, &(0x7f0000002880)={0x18, 0xfffffffffffffff5, 0x4}, &(0x7f00000028c0)={0x18, 0xfffffffffffffffe, 0x3, {0x7}}, &(0x7f0000002900)={0x28, 0x0, 0x300000000000, {{0x1, 0x8, 0x0, r1}}}, &(0x7f0000002940)={0x60, 0x0, 0xc, {{0x0, 0xff, 0x2, 0x41, 0x40, 0x6, 0x8dd, 0x5}}}, &(0x7f00000029c0)={0x18, 0xffffffffffffffda, 0x9, {0x5}}, &(0x7f0000002a00)={0x16, 0x0, 0x6, {'\xff\xff\xff\xff\xff\xff'}}, &(0x7f0000002a40)={0x20, 0x0, 0x0, {0x0, 0x1e}}, &(0x7f0000002c00)={0x78, 0xfffffffffffffffe, 0x3, {0x8, 0x6, 0x0, {0x0, 0x8, 0x2, 0x8, 0x80, 0x5, 0x3482, 0xa246, 0x80000000, 0x4000, 0x3e08, r7, r8, 0x7f, 0x3}}}, &(0x7f0000002c80)={0x90, 0xffffffffffffffda, 0x2, {0x6, 0x0, 0x2, 0x8, 0xfffffffc, 0x9, {0x1, 0x3, 0x2, 0x5, 0x761, 0x7, 0x58d95c3d, 0x7, 0x7, 0x8000, 0x8, r9, 0xee01, 0x0, 0x400}}}, &(0x7f0000002d40)={0x158, 0x0, 0x8000000000000001, [{0x0, 0x0, 0x0, 0x5}, {0x2, 0x291, 0x3, 0x0, 'a-$'}, {0x6, 0x1, 0x1a, 0x5df9, 'bpf_lsm_inode_getsecurity\x00'}, {0x5, 0x4}, {0x3, 0x2, 0x7, 0x615d, ']F,[@%('}, {0x3, 0x4, 0x2, 0x5, '#*'}, {0x6, 0xc, 0x1, 0x200, '!'}, {0x2, 0x1, 0x3, 0xffff, '%[*'}, {0x2, 0x1, 0x6, 0x10001, '\xbb\xbb\xbb\xbb\xbb\xbb'}, {0x2, 0x9, 0x3, 0x3, '\\$&'}]}, &(0x7f0000004380)={0x280, 0x0, 0x7, [{{0x1, 0x2, 0x9b, 0xa, 0x40, 0x2b, {0x1, 0x0, 0xf5, 0x7, 0x8, 0x7, 0x5, 0x9, 0x1b, 0xa000, 0x4, r10, r12, 0x4, 0x10000}}, {0x4, 0x6, 0x0, 0x7f}}, {{0x1, 0x0, 0x9, 0x4, 0x9, 0x101, {0x0, 0x80, 0x80000001, 0x8, 0x7fffffffffffffff, 0xc14, 0x7, 0x2, 0x5, 0x1000, 0x7, r13, r16, 0x7, 0x3}}, {0x1, 0x8000000000000000, 0x0, 0x9}}, {{0x3, 0x1, 0x7, 0x3, 0x10000, 0xfff, {0x6, 0x3, 0x4, 0xffffffff, 0x5, 0x1, 0xcf, 0x5, 0x2, 0x3000, 0xf, r17, r18, 0xdda, 0x800}}, {0x0, 0x480, 0x1, 0x7, '\''}}, {{0x3, 0x0, 0x6, 0x6, 0xae90, 0x7fff, {0x5, 0x2, 0xffff, 0xb6, 0x9, 0x8, 0x200, 0x3, 0x6, 0x6000, 0xfffffff7, r19, r20, 0x4, 0x6}}, {0x0, 0x3, 0x6, 0xfffffffd, 'wlan0\x00'}}]}, &(0x7f0000004740)={0xa0, 0xfffffffffffffffe, 0x7fff, {{0x1, 0x2, 0x8, 0x8001, 0x9000, 0x0, {0x3, 0x4, 0x4283, 0x6, 0x7, 0x1, 0x4, 0x8000, 0x7f, 0x2000, 0xa, r22, r24, 0x2, 0x9}}}}, &(0x7f0000004800)={0x20, 0x0, 0xa, {0x8}}, &(0x7f0000005a40)={0x130, 0x0, 0x800, {0x10000000, 0x9, 0x0, '\x00', {0x4, 0xfffffff9, 0x8, 0xd, r25, r27, 0x4000, '\x00', 0xe, 0x1, 0x9, 0x4, {0x75, 0x10}, {0x0, 0x2a}, {0x4, 0x647}, {0x8, 0xfffffffa}, 0x4, 0x9, 0xf1, 0x7}}}}) r28 = socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$SEG6(&(0x7f0000005c40), r28) syz_init_net_socket$802154_dgram(0x24, 0x2, 0x0) r29 = syz_io_uring_complete(0x0) syz_io_uring_setup(0x19f7, &(0x7f0000005c80)={0x0, 0x9c5d, 0x2, 0x1, 0x253, 0x0, r15}, &(0x7f0000005d00)=0x0, &(0x7f0000005d40)=0x0) syz_io_uring_submit(r30, r31, &(0x7f0000005dc0)=@IORING_OP_TIMEOUT={0xb, 0x28, 0x0, 0x0, 0x3, &(0x7f0000005d80), 0x1, 0x10, 0x1}) r32 = syz_kvm_setup_syzos_vm$x86(r15, &(0x7f0000bff000/0x400000)=nil) syz_kvm_add_vcpu$x86(r32, &(0x7f0000005e80)={0x0, &(0x7f0000005e00)=[@enable_nested={0x12c, 0x18}, @uexit={0x0, 0x18, 0x4}, @nested_create_vm={0x12d, 0x18, 0x2}], 0x48}) syz_kvm_setup_cpu$ppc64(r14, r29, &(0x7f0000c37000/0x18000)=nil, &(0x7f0000006100)=[{0x0, &(0x7f0000005ec0)="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", 0x230}], 0x1, 0x1, &(0x7f0000006140)=[@featur2={0x1, 0x7}], 0x1) syz_kvm_setup_syzos_vm$x86(r29, &(0x7f0000c00000/0x400000)=nil) syz_memcpy_off$IO_URING_METADATA_FLAGS(r30, 0x114, &(0x7f0000006180), 0x0, 0x4) r33 = socketcall$auto_SYS_SOCKET(0x1, &(0x7f0000006240)=0x5) shmctl$auto_SHM_INFO(0x80000000, 0xe, &(0x7f0000006340)={{0xfffffffa, r11, r27, 0x3, 0xffff, 0xe6b, 0x7}, 0x0, 0x357b, 0x3, 0x8000000000000000, @raw=0x74, @inferred=r21, 0xc0b, 0x0, &(0x7f0000006280)="7010159f68d5ae907137fa70d286a18ba48348f88d1fa097cfe82bb9559e66c97b4ccf3acd9ce240544907f4538170e45e0c6de8adfb6ae94ed44b616a63737814f1894473d9519f2130e8a0e061c96e46a99a5316e46b6b461348bb03dddad70675bcda5921bdb5038cc7dcade7ba3e106cf315e2ad48818a62c7", &(0x7f0000006300)="1368248ad908eb425081239c0a10a514ef06f16fa38bc52b0f03b04d36f544263cb4a0a3ffbbafa80089cf8b02841df433c6b97da8fbfe285fccd05ad4"}) syz_mount_image$fuse(&(0x7f00000061c0), &(0x7f0000006200)='./file0\x00', 0x400, &(0x7f00000063c0)={{'fd', 0x3d, r33}, 0x2c, {'rootmode', 0x3d, 0x1000}, 0x2c, {'user_id', 0x3d, r23}, 0x2c, {'group_id', 0x3d, r34}, 0x2c, {[{@blksize={'blksize', 0x3d, 0x600}}, {}, {@blksize={'blksize', 0x3d, 0x1e00}}, {@max_read={'max_read', 0x3d, 0x100000001}}, {@default_permissions}, {@default_permissions}], [{@euid_lt={'euid<', r13}}, {@subj_user={'subj_user', 0x3d, ','}}, {@uid_lt={'uid<', r26}}, {@audit}, {@dont_measure}]}}, 0x0, 0x0, &(0x7f0000006540)="d3aa92") syz_open_dev$I2C(&(0x7f0000006580), 0x800, 0x40000) syz_open_procfs(r5, &(0x7f00000065c0)='cgroup\x00') syz_open_pts(r14, 0x201) syz_pidfd_open(r35, 0x0) r36 = pkey_alloc(0x0, 0x2) syz_pkey_set(r36, 0x0) syz_socket_connect_nvme_tcp() r37 = syz_usb_connect(0x3, 0x504, &(0x7f0000006600)={{0x12, 0x1, 0x310, 0xf, 0x36, 0x49, 0x8, 0x7d0, 0x4101, 0x4624, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x4f2, 0x3, 0x1, 0xa2, 0x40, 0x64, [{{0x9, 0x4, 0xc2, 0x7, 0xa, 0x50, 0xb3, 0x17, 0x7, [@hid_hid={0x9, 0x21, 0x3, 0xdf, 0x1, {0x22, 0x238}}, @uac_as={[@as_header={0x7, 0x24, 0x1, 0x2, 0x2, 0x2}, @format_type_i_continuous={0xb, 0x24, 0x2, 0x1, 0xde, 0x2, 0x0, 0x5, "", "116df7"}, @format_type_ii_discrete={0xa, 0x24, 0x2, 0x2, 0x8, 0x3, 0x7, ';'}, @format_type_i_continuous={0xa, 0x24, 0x2, 0x1, 0x4, 0x3, 0x1a, 0x9, "0f58"}, @format_type_ii_discrete={0xc, 0x24, 0x2, 0x2, 0xf270, 0x100, 0x7, "3129f9"}, @format_type_i_continuous={0xb, 0x24, 0x2, 0x1, 0x1, 0x3, 0xf9, 0xa3, "", "540613"}]}], [{{0x9, 0x5, 0x3, 0x38, 0x8, 0x1, 0xf9, 0x0, [@uac_iso={0x7, 0x25, 0x1, 0x1, 0x80, 0xffb0}, @generic={0x62, 0xe, "0bef679d6359d71a144a38a22834d12bd19c60b65829f44ebe6b1258a3a7a0cc60f30007c2c4d2a3cb88fb6beb580e628147114ffc6a4e39b19e718fc2cd0fa5af688649abe3db58d0707203283b6bdca05f49fb16b3618fcf4dd01cb2ef3509"}]}}, {{0x9, 0x5, 0x4, 0x0, 0x20, 0x1, 0x2, 0x5, [@generic={0x4e, 0xa, "aade99ccf348061ad92225e05a396a2ebe892ca65de9efa665821e34200c5caa943c9b1a3eb10828e13815e6120c4787a4d395b1e32a8ba1ffb991375879d517862de6e9cb6f723335dd156a"}]}}, {{0x9, 0x5, 0x3, 0xc, 0x3ff, 0x7, 0x0, 0x7f, [@generic={0x33, 0xe, "08b928c563b3fbc136beaf22bf46e0cf55e3f262485f30b28a3f9a3ec901ce8066c6788d469526c55bf0c2b3ca5005539a"}]}}, {{0x9, 0x5, 0xb, 0x4, 0x3ff, 0x3, 0x40, 0x7f, [@uac_iso={0x7, 0x25, 0x1, 0x87, 0x9, 0x4e}, @generic={0xcb, 0x11, "3b9dcacc679086d78f927ab634935a18813b23cceffea69b630aa97cc469907afac2a30327adeb901d9fb900ad82138098cbff5fed7fee2c7d701290ce4ad020a9da29675f8f051399879db57022b89c990120513aaa70c51847b128dd73bdea25cbb545c1ae8352024ca93cd7ea881cbb0920eedef072efe9da61b7bd77a3c085d712c142ca88c39f8edd17d6fb9a7ef8d0fad5a15a333e7ed05e7e9ae6e2a464c3159ab1a60e33afbf29a2f678c8c9e2f8f7a8d03d5582529b277b4be85583e5d81bc95749773042"}]}}, {{0x9, 0x5, 0x1, 0x3, 0x8, 0xe, 0x8, 0x7f, [@generic={0x72, 0x6, "6ee2410469b7a8b23e3255a554b63d5beb1b34b4871894e3df69e7558ce56cc83b83ae1ac9d1dec0882d040a7801a300c7eac26d78d2daff6bd47caca500d46c1b5a0b9e1ada0e7b606b6fd6b39db81c7c954c04d4ede980ea2ca80b113bdb4be747e1b6dc9281d77e85683aaac6534c"}]}}, {{0x9, 0x5, 0xb, 0xc, 0x5bf5a5d27b9960e1, 0x0, 0x1, 0x7}}, {{0x9, 0x5, 0x0, 0x0, 0x10, 0x5, 0x1, 0x77}}, {{0x9, 0x5, 0x5, 0x0, 0x208, 0x1b, 0x9, 0x7}}, {{0x9, 0x5, 0xf, 0x0, 0x40, 0x30, 0x5, 0x7, [@generic={0x50, 0x6, "011daf9ad3aea956d0184e8907d7b0b0a6aa9e921ac64d7a9e5a0ce5b5e0afb47868c9c4a76b6509835bf9ee45a7891eaad172a875634f7f36260124669b2d1b04c2fda38cc936921cb561245efa"}, @generic={0xb7, 0x21, "53542a37449c9d1a4e696a99527d5ad5bdad1c7e724128df50295aa0c61401ca6cd5cd356977f617e8b11448466269116af93b9dce05ded48792719f65bfa91da16b85ee1d6236084d8170f97c0a74f102663c645b0ee1b0fa7904e646438d8b16218604561c1abb98289e3ecba88e78f67361478774462a4d82749646452004b2482082e9c1b2f2972419f6f752e1bec5e1925fce215edb8265344da85b85164db3c633e4e431fec4c609664eac2b6b1f5f7bdc10"}]}}, {{0x9, 0x5, 0xc, 0x10, 0x10, 0x3, 0xf9, 0xff, [@generic={0xba, 0x23, "5c48a51f46fa078d84ce434e722a7fa4e7021ae9d9b76677366de6a10ab3e94e0969d7fc2a24536e1150d94672c5418b02951def7e20c7dfe0aa26adbf0bfd8f6dd351fa30990713537134af9c14fa84dee2b95af8e134542b5a1ad540329a97cbdd1a2422f13e6e03b49f7105a6bf4900ea723fbe14f21d182aeef2cf5162591f8bd38b85d45d723cef02132b5e45467dd8d430c378b8bf2d98403267010379de7bd04c800dfd5fae0c0ddac0b5cffde98ca400dce30ddd"}]}}]}}, {{0x9, 0x4, 0xfc, 0x4, 0x1, 0xff, 0x6, 0x39, 0xc, [], [{{0x9, 0x5, 0x0, 0x2, 0x400, 0x9, 0xdf, 0x2, [@uac_iso={0x7, 0x25, 0x1, 0x3, 0x8, 0x8000}]}}]}}, {{0x9, 0x4, 0x9d, 0x1, 0x3, 0x48, 0x48, 0x40, 0xa, [], [{{0x9, 0x5, 0x1, 0x10, 0x40, 0x2, 0xf1, 0xc, [@uac_iso={0x7, 0x25, 0x1, 0x81, 0x81, 0x5}]}}, {{0x9, 0x5, 0x7, 0x8, 0x40, 0x6, 0x0, 0x1, [@uac_iso={0x7, 0x25, 0x1, 0x2, 0x0, 0x10}, @generic={0x6, 0xe, "555dc78c"}]}}, {{0x9, 0x5, 0x5, 0x4, 0x200, 0x9, 0x40, 0x3}}]}}]}}]}}, &(0x7f0000006c00)={0xa, &(0x7f0000006b40)={0xa, 0x6, 0x200, 0x3b, 0x5, 0x9, 0x40, 0xa4}, 0x30, &(0x7f0000006b80)={0x5, 0xf, 0x30, 0x3, [@ptm_cap={0x3}, @ssp_cap={0x10, 0x10, 0xa, 0x1c, 0x1, 0x7ffffd3, 0xff00, 0x1fb, [0x0]}, @ssp_cap={0x18, 0x10, 0xa, 0xf, 0x3, 0x8, 0xff00, 0xd00, [0x0, 0xffc0cf, 0xff0000]}]}, 0x1, [{0x4, &(0x7f0000006bc0)=@lang_id={0x4, 0x3, 0x42f}}]}) r38 = syz_usb_connect_ath9k(0x3, 0x5a, &(0x7f0000006c40)={{0x12, 0x1, 0x200, 0xff, 0xff, 0xff, 0x40, 0xcf3, 0x9271, 0x108, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x48}}]}}, 0x0) r39 = syz_usb_connect$cdc_ecm(0x6, 0x8f, &(0x7f0000006cc0)={{0x12, 0x1, 0x310, 0x2, 0x0, 0x0, 0x8, 0x525, 0xa4a1, 0x40, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x7d, 0x1, 0x1, 0x6, 0x10, 0xb, [{{0x9, 0x4, 0x0, 0x4, 0x3, 0x2, 0x6, 0x0, 0xe, {{0xb, 0x24, 0x6, 0x0, 0x0, "d60132f149c6"}, {0x5, 0x24, 0x0, 0xbb8}, {0xd, 0x24, 0xf, 0x1, 0x7, 0x32a, 0x8, 0x1f}, [@obex={0x5, 0x24, 0x15, 0x101}, @mdlm={0x15, 0x24, 0x12, 0xfffc}, @network_terminal={0x7, 0x24, 0xa, 0xb, 0x9, 0xf, 0x2}, @call_mgmt={0x5, 0x24, 0x1, 0x1, 0xff}, @obex={0x5, 0x24, 0x15, 0x7ff}, @mbim_extended={0x8, 0x24, 0x1c, 0x5, 0x32, 0xa}]}, {[{{0x9, 0x5, 0x81, 0x3, 0x10, 0x7, 0x99, 0xb2}}], {{0x9, 0x5, 0x82, 0x2, 0x8, 0x1a, 0x7, 0xc4}}, {{0x9, 0x5, 0x3, 0x2, 0x3ff, 0xa6, 0x3, 0xa7}}}}}]}}]}}, &(0x7f0000007240)={0xa, &(0x7f0000006d80)={0xa, 0x6, 0x300, 0xfb, 0x3, 0xc, 0xff, 0x1}, 0x3c, &(0x7f0000006dc0)={0x5, 0xf, 0x3c, 0x6, [@ext_cap={0x7, 0x10, 0x2, 0x4, 0x7, 0x7, 0x56a9}, @wireless={0xb, 0x10, 0x1, 0x4, 0x42, 0x2, 0x3, 0x63ac, 0x9}, @ptm_cap={0x3}, @ext_cap={0x7, 0x10, 0x2, 0x1a, 0x7, 0xb, 0xd5}, @ssp_cap={0x10, 0x10, 0xa, 0x7f, 0x1, 0x12f, 0xf00, 0x1, [0x3fc0]}, @wireless={0xb, 0x10, 0x1, 0x8, 0x40, 0x7, 0x5, 0x2, 0x4}]}, 0x8, [{0x78, &(0x7f0000006e00)=@string={0x78, 0x3, "d7b4cadb72dce27ca7fb5209aad1b3585c8188f06126d3f18edd4cfa47addbd2a6715dd4adfa697f02bcb089ed2013268885f9c785bd7c5d4ee50de3cecd7a9d0b7b2e708226e8acb1e908b1f5c0c2a8132465e451fe49f15e60c8d3b9c84305d0dd8f634480050259cac3ce9cfc95092bd7e491866d"}}, {0x13, &(0x7f0000006e80)=@string={0x13, 0x3, "7d97d9eb8af2943b9985d30caaead89b5a"}}, {0x4, &(0x7f0000006ec0)=@lang_id={0x4, 0x3, 0x44a}}, {0x4, &(0x7f0000006f00)=@lang_id={0x4, 0x3, 0x1c09}}, {0x93, &(0x7f0000006f40)=@string={0x93, 0x3, "a7e5529238f796c9000c753f41b8183140f3914b76bf1c428ebe8d39c6f072b481ecad746274e7c538790d8c730d20517a2244a3781b115c07d40e9ec9c059f12d0d15f46ccf0cde26efa9d02a119e2cc5627c7f4241244d0843ef0018b12fc3cd467b5fdce58a6975d07ac352a42f1615178dcb0990aeca46461306816becdeb896bac765ded81ebd75ba4d97229b15a9"}}, {0xc2, &(0x7f0000007000)=@string={0xc2, 0x3, "d5a3d483012b31e49dfa33fd9593b4b668aa6f3f39301837d951daf256316819f5e71fa651bb06b2af65af27c7bf0fda1eaa1e32231b75f4d06d4923c76013e9d76a12202816ff8740a9fb4f2eceb27bd2e1ab1e7bd4ba7314b33d15e0fe65aa2b2e7ffb3236cb615493391feab3bfb828182fb60c4fd6fef422e106f384be633905ca1aaf83d9ddb2a2902e2a117de4e596145809b3b34b1ea432b412391ffb25ac255e7da11d994e7e9e98e0723a2757e580959dae6fa7ac2afb8dc5384b4a"}}, {0x5b, &(0x7f0000007100)=@string={0x5b, 0x3, "a794090968e46e97b7269fcae0f818bf9a99a50de60e5cda684721be6dc34820f912c338d7dc8ac50d93fc92a2ebde1a02652089726608a9e5877f4cacf91b9eec5b5eb2fc7fa7bb3d26607537f0e55d00793e7cf13bbb367e"}}, {0x90, &(0x7f0000007180)=@string={0x90, 0x3, "f9926b0dae8c462352105ed1c4d3ff50cc9ce982c397e92e576101317190c2327a2ba723844149e55f4b961d0f0defbc7edb70f5d61169074265acd81ceec5a15b66a5e5009236d062994af9afcbe04736aaad6bb55cb30e057c42d0df7481603c3c959b5e4e20f05382a9d9ad4c01680ae3597ef403dedf0b6c53fdc70d13ed116ef9ea902093f1c9f4af4cec25"}}]}) syz_usb_control_io(r39, &(0x7f0000007480)={0x2c, &(0x7f00000072c0)={0x40, 0x7, 0x1b, {0x1b, 0xa, "90730f1d9e91d2e1df577143e18c680eace6d6c12299246128"}}, &(0x7f0000007300)={0x0, 0x3, 0x44, @string={0x44, 0x3, "87d74dd46096809a8f4988ddaa95a532fbc22d8585d1592857ad0ab00c17a4fef3b229a02fe0e3649316bed9f44f588b1f0b47bc86705129440938bd68a29a84f829"}}, &(0x7f0000007380)={0x0, 0xf, 0x41, {0x5, 0xf, 0x41, 0x4, [@ssp_cap={0x20, 0x10, 0xa, 0x0, 0x5, 0xe85, 0xf00, 0x3, [0xff00a0, 0xff00f0, 0x30, 0xf, 0xdfbf]}, @ext_cap={0x7, 0x10, 0x2, 0x4, 0x4, 0x1, 0xff}, @wireless={0xb, 0x10, 0x1, 0x2, 0x1, 0x1, 0x3, 0x9, 0x8}, @ss_cap={0xa, 0x10, 0x3, 0x2, 0x4, 0x3, 0xb6, 0x5}]}}, &(0x7f0000007400)={0x20, 0x29, 0xf, {0xf, 0x29, 0xf, 0x4, 0x6, 0x32, "b2c84f72", "f5fb7b90"}}, &(0x7f0000007440)={0x20, 0x2a, 0xc, {0xc, 0x2a, 0x3a, 0x60, 0x4, 0x4, 0x7, 0x8001, 0x8}}}, &(0x7f0000007980)={0x84, &(0x7f00000074c0)={0x0, 0x0, 0xcf, "9f51c6ee54bfc1fc30d787499ab24493c2f30f78fe088e724ad29badb6c2406874a909d80e000075bbe92f6f4e8b3514481d12b869deb6f47f3b458369b7f024fcc02319e38cb7467c76b370d378ee0256daa3acea1f71be5e4c7d8a50037ba84e62445bbd990a26b44f60198d63505fbf005b96637abf5eb692a2ed0d582692e3f259387ed9d1955917dc53a246eb20e281e78386ed8734b81075e43b5b3e15ea60dbd497e07ad8847992dd87831b20d05263c108d70117e52170efac1777d3d376876358c2297172b2a023b52c05"}, &(0x7f00000075c0)={0x0, 0xa, 0x1, 0x2}, &(0x7f0000007600)={0x0, 0x8, 0x1, 0xfc}, &(0x7f0000007640)={0x20, 0x0, 0x4, {0x3, 0x1}}, &(0x7f0000007680)={0x20, 0x0, 0x4, {0x1d20, 0x20}}, &(0x7f00000076c0)={0x40, 0x7, 0x2, 0xfff8}, &(0x7f0000007700)={0x40, 0x9, 0x1, 0xd}, &(0x7f0000007740)={0x40, 0xb, 0x2, "2289"}, &(0x7f0000007780)={0x40, 0xf, 0x2, 0x2}, &(0x7f00000077c0)={0x40, 0x13, 0x6, @broadcast}, &(0x7f0000007800)={0x40, 0x17, 0x6, @random="eefa7a620165"}, &(0x7f0000007840)={0x40, 0x19, 0x2, "01d3"}, &(0x7f0000007880)={0x40, 0x1a, 0x2, 0x5}, &(0x7f00000078c0)={0x40, 0x1c, 0x1, 0xff}, &(0x7f0000007900)={0x40, 0x1e, 0x1, 0xf7}, &(0x7f0000007940)={0x40, 0x21, 0x1, 0xb}}) syz_usb_disconnect(r38) r40 = syz_usb_connect$hid(0x0, 0x3f, &(0x7f0000007a40)={{0x12, 0x1, 0x110, 0x0, 0x0, 0x0, 0xff, 0x46d, 0xc08d, 0x40, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x2d, 0x1, 0x1, 0x4, 0x50, 0x10, [{{0x9, 0x4, 0x0, 0xf9, 0x2, 0x3, 0x1, 0x2, 0x5, {0x9, 0x21, 0x81, 0x8, 0x1, {0x22, 0x6e7}}, {{{0x9, 0x5, 0x81, 0x3, 0x10, 0x8, 0xc, 0x6e}}, [{{0x9, 0x5, 0x2, 0x3, 0x200, 0x8, 0x1, 0x50}}]}}}]}}]}}, &(0x7f0000007f40)={0xa, &(0x7f0000007a80)={0xa, 0x6, 0x310, 0x48, 0xa5, 0xca, 0x8, 0x10}, 0x30, &(0x7f0000007ac0)={0x5, 0xf, 0x30, 0x4, [@ss_cap={0xa, 0x10, 0x3, 0x0, 0x5, 0x0, 0x1, 0x8a}, @ssp_cap={0x10, 0x10, 0xa, 0xa, 0x1, 0x0, 0xf00f, 0x7, [0x3f00]}, @ss_cap={0xa, 0x10, 0x3, 0x0, 0x4, 0x4, 0x8, 0xfff8}, @ext_cap={0x7, 0x10, 0x2, 0x4, 0x0, 0x5, 0x8001}]}, 0xa, [{0x4, &(0x7f0000007b00)=@lang_id={0x4, 0x3, 0x437}}, {0xf2, &(0x7f0000007b40)=@string={0xf2, 0x3, "f0019969b38f6afabd6c105967f2b79c116bf52e6af549271939cbeacdab5c8503cee7d1a67a62ea491b6b2f8647133f15b8e9707e4a77577e8afd8a1284459b66c7be93c43e84efcfc2f73e93d295998cc2f495ae5b1a3d5e12ef6e64664a3b5c79528b0119f78b0a61d807232537eb3d9c09add93823e6f878bbba00898be1017faf4e5f14d387401c45645954c04f8c83f9e5f0ae9913d9ccb88e7516d80f8e21c3b610429258169248a016de144abce7905f4dd3bf2698e9f3a5febc7c10ef4ed298e5f8facbb3c9344bb3ab33568a0f64f428d60dabe2bfe795df0603cdf76f606241fdd89c8ff9fe55ee2395fd"}}, {0x4, &(0x7f0000007c40)=@lang_id={0x4, 0x3, 0x2c0a}}, {0x89, &(0x7f0000007c80)=@string={0x89, 0x3, "05b7615d7a2ba83f5916d585e5290669a0c243e1c65f43d6c7680767f0da6805ce3566413a20f4b8664b77799c5c6061d9d19075d2f89b880caa622d3aa9108e5222e55336bf7850d2f7990a1314b0be81d606f8a99a6705e0ac44872072366abaea5f97d7ca08ed1eb25b707c92991e5537f945aa401d761349b628d6c928c1cfe5b09fd13272"}}, {0xb8, &(0x7f0000007d40)=@string={0xb8, 0x3, "f04a78648bb13ad6c53b44e42ed2f24d3205bf5161674ff375ecfa9f710dd4d52e29779bc4c1d41faf1b2e02fa2cb4ca6c449681b5c88b3775f82babde2258f8a001d811f8b64ce0753b228c161809770f39160ba4ea92490a38f82c3f18b44c81a148c48bbc4f716e64a85a985f3570d6132a4ac6e97f0ae7296582879c5d4e277be3d5867dc3df2606879bd5281225a34f3feba436eec16ddfbe611574be645a71c5e8be494e27918333f2431aeff2e9fed0608428"}}, {0x4, &(0x7f0000007e00)=@lang_id={0x4, 0x3, 0x40f}}, {0x4, &(0x7f0000007e40)=@lang_id={0x4, 0x3, 0x860}}, {0x4, &(0x7f0000007e80)=@lang_id={0x4, 0x3, 0xf4ef}}, {0x4, &(0x7f0000007ec0)=@lang_id={0x4, 0x3, 0x3001}}, {0x4, &(0x7f0000007f00)=@lang_id={0x4, 0x3, 0x2009}}]}) syz_usb_ep_read(r40, 0x0, 0x1000, &(0x7f0000008000)=""/4096) syz_usb_ep_write(r37, 0x6, 0x94, &(0x7f0000009000)="57bba2f04f3945da7a47037710f6d53d8dfad8a96c57e11cf5fcfee434fce88038e1904ecc2712334118e5002b0c107c286eb90314233fd5ce1d9ea5da0076741102d88517463ff118bd931282412de1f5ea71eb2bec91b82b7f7b64f8aae1d58e32de1deeb1c8264d59d639a1945f0090275e6bdbf18e86685ccb60a5fec9c7cebac5d05b5c84e6116f89d443fad3ce74d82080") syz_usbip_server_init(0x5) csource_test.go:158: failed to build program: // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifndef __NR_clone3 #define __NR_clone3 435 #endif #ifndef __NR_io_uring_setup #define __NR_io_uring_setup 425 #endif #ifndef __NR_memfd_create #define __NR_memfd_create 319 #endif #ifndef __NR_pidfd_open #define __NR_pidfd_open 434 #endif #ifndef __NR_pkey_alloc #define __NR_pkey_alloc 330 #endif #ifndef __NR_statx #define __NR_statx 332 #endif static unsigned long long procid; static void sleep_ms(uint64_t ms) { usleep(ms * 1000); } static uint64_t current_time_ms(void) { struct timespec ts; if (clock_gettime(CLOCK_MONOTONIC, &ts)) exit(1); return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000; } static void use_temporary_dir(void) { char tmpdir_template[] = "./syzkaller.XXXXXX"; char* tmpdir = mkdtemp(tmpdir_template); if (!tmpdir) exit(1); if (chmod(tmpdir, 0777)) exit(1); if (chdir(tmpdir)) exit(1); } static void thread_start(void* (*fn)(void*), void* arg) { pthread_t th; pthread_attr_t attr; pthread_attr_init(&attr); pthread_attr_setstacksize(&attr, 128 << 10); int i = 0; for (; i < 100; i++) { if (pthread_create(&th, &attr, fn, arg) == 0) { pthread_attr_destroy(&attr); return; } if (errno == EAGAIN) { usleep(50); continue; } break; } exit(1); } #define BITMASK(bf_off,bf_len) (((1ull << (bf_len)) - 1) << (bf_off)) #define STORE_BY_BITMASK(type,htobe,addr,val,bf_off,bf_len) *(type*)(addr) = htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) | (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len)))) typedef struct { int state; } event_t; static void event_init(event_t* ev) { ev->state = 0; } static void event_reset(event_t* ev) { ev->state = 0; } static void event_set(event_t* ev) { if (ev->state) exit(1); __atomic_store_n(&ev->state, 1, __ATOMIC_RELEASE); syscall(SYS_futex, &ev->state, FUTEX_WAKE | FUTEX_PRIVATE_FLAG, 1000000); } static void event_wait(event_t* ev) { while (!__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE)) syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, 0); } static int event_isset(event_t* ev) { return __atomic_load_n(&ev->state, __ATOMIC_ACQUIRE); } static int event_timedwait(event_t* ev, uint64_t timeout) { uint64_t start = current_time_ms(); uint64_t now = start; for (;;) { uint64_t remain = timeout - (now - start); struct timespec ts; ts.tv_sec = remain / 1000; ts.tv_nsec = (remain % 1000) * 1000 * 1000; syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, &ts); if (__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE)) return 1; now = current_time_ms(); if (now - start > timeout) return 0; } } static bool write_file(const char* file, const char* what, ...) { char buf[1024]; va_list args; va_start(args, what); vsnprintf(buf, sizeof(buf), what, args); va_end(args); buf[sizeof(buf) - 1] = 0; int len = strlen(buf); int fd = open(file, O_WRONLY | O_CLOEXEC); if (fd == -1) return false; if (write(fd, buf, len) != len) { int err = errno; close(fd); errno = err; return false; } close(fd); return true; } struct nlmsg { char* pos; int nesting; struct nlattr* nested[8]; char buf[4096]; }; static void netlink_init(struct nlmsg* nlmsg, int typ, int flags, const void* data, int size) { memset(nlmsg, 0, sizeof(*nlmsg)); struct nlmsghdr* hdr = (struct nlmsghdr*)nlmsg->buf; hdr->nlmsg_type = typ; hdr->nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK | flags; memcpy(hdr + 1, data, size); nlmsg->pos = (char*)(hdr + 1) + NLMSG_ALIGN(size); } static void netlink_attr(struct nlmsg* nlmsg, int typ, const void* data, int size) { struct nlattr* attr = (struct nlattr*)nlmsg->pos; attr->nla_len = sizeof(*attr) + size; attr->nla_type = typ; if (size > 0) memcpy(attr + 1, data, size); nlmsg->pos += NLMSG_ALIGN(attr->nla_len); } static int netlink_send_ext(struct nlmsg* nlmsg, int sock, uint16_t reply_type, int* reply_len, bool dofail) { if (nlmsg->pos > nlmsg->buf + sizeof(nlmsg->buf) || nlmsg->nesting) exit(1); struct nlmsghdr* hdr = (struct nlmsghdr*)nlmsg->buf; hdr->nlmsg_len = nlmsg->pos - nlmsg->buf; struct sockaddr_nl addr; memset(&addr, 0, sizeof(addr)); addr.nl_family = AF_NETLINK; ssize_t n = sendto(sock, nlmsg->buf, hdr->nlmsg_len, 0, (struct sockaddr*)&addr, sizeof(addr)); if (n != (ssize_t)hdr->nlmsg_len) { if (dofail) exit(1); return -1; } n = recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0); if (reply_len) *reply_len = 0; if (n < 0) { if (dofail) exit(1); return -1; } if (n < (ssize_t)sizeof(struct nlmsghdr)) { errno = EINVAL; if (dofail) exit(1); return -1; } if (hdr->nlmsg_type == NLMSG_DONE) return 0; if (reply_len && hdr->nlmsg_type == reply_type) { *reply_len = n; return 0; } if (n < (ssize_t)(sizeof(struct nlmsghdr) + sizeof(struct nlmsgerr))) { errno = EINVAL; if (dofail) exit(1); return -1; } if (hdr->nlmsg_type != NLMSG_ERROR) { errno = EINVAL; if (dofail) exit(1); return -1; } errno = -((struct nlmsgerr*)(hdr + 1))->error; return -errno; } static int netlink_query_family_id(struct nlmsg* nlmsg, int sock, const char* family_name, bool dofail) { struct genlmsghdr genlhdr; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = CTRL_CMD_GETFAMILY; netlink_init(nlmsg, GENL_ID_CTRL, 0, &genlhdr, sizeof(genlhdr)); netlink_attr(nlmsg, CTRL_ATTR_FAMILY_NAME, family_name, strnlen(family_name, GENL_NAMSIZ - 1) + 1); int n = 0; int err = netlink_send_ext(nlmsg, sock, GENL_ID_CTRL, &n, dofail); if (err < 0) { return -1; } uint16_t id = 0; struct nlattr* attr = (struct nlattr*)(nlmsg->buf + NLMSG_HDRLEN + NLMSG_ALIGN(sizeof(genlhdr))); for (; (char*)attr < nlmsg->buf + n; attr = (struct nlattr*)((char*)attr + NLMSG_ALIGN(attr->nla_len))) { if (attr->nla_type == CTRL_ATTR_FAMILY_ID) { id = *(uint16_t*)(attr + 1); break; } } if (!id) { errno = EINVAL; return -1; } recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0); return id; } const int kInitNetNsFd = 201; #define WIFI_INITIAL_DEVICE_COUNT 2 #define WIFI_MAC_BASE { 0x08, 0x02, 0x11, 0x00, 0x00, 0x00} #define WIFI_IBSS_BSSID { 0x50, 0x50, 0x50, 0x50, 0x50, 0x50} #define WIFI_IBSS_SSID { 0x10, 0x10, 0x10, 0x10, 0x10, 0x10} #define WIFI_DEFAULT_FREQUENCY 2412 #define WIFI_DEFAULT_SIGNAL 0 #define WIFI_DEFAULT_RX_RATE 1 #define HWSIM_CMD_REGISTER 1 #define HWSIM_CMD_FRAME 2 #define HWSIM_CMD_NEW_RADIO 4 #define HWSIM_ATTR_SUPPORT_P2P_DEVICE 14 #define HWSIM_ATTR_PERM_ADDR 22 #define IF_OPER_UP 6 struct join_ibss_props { int wiphy_freq; bool wiphy_freq_fixed; uint8_t* mac; uint8_t* ssid; int ssid_len; }; static int set_interface_state(const char* interface_name, int on) { struct ifreq ifr; int sock = socket(AF_INET, SOCK_DGRAM, 0); if (sock < 0) { return -1; } memset(&ifr, 0, sizeof(ifr)); strcpy(ifr.ifr_name, interface_name); int ret = ioctl(sock, SIOCGIFFLAGS, &ifr); if (ret < 0) { close(sock); return -1; } if (on) ifr.ifr_flags |= IFF_UP; else ifr.ifr_flags &= ~IFF_UP; ret = ioctl(sock, SIOCSIFFLAGS, &ifr); close(sock); if (ret < 0) { return -1; } return 0; } static int nl80211_set_interface(struct nlmsg* nlmsg, int sock, int nl80211_family, uint32_t ifindex, uint32_t iftype, bool dofail) { struct genlmsghdr genlhdr; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = NL80211_CMD_SET_INTERFACE; netlink_init(nlmsg, nl80211_family, 0, &genlhdr, sizeof(genlhdr)); netlink_attr(nlmsg, NL80211_ATTR_IFINDEX, &ifindex, sizeof(ifindex)); netlink_attr(nlmsg, NL80211_ATTR_IFTYPE, &iftype, sizeof(iftype)); int err = netlink_send_ext(nlmsg, sock, 0, NULL, dofail); if (err < 0) { } return err; } static int nl80211_join_ibss(struct nlmsg* nlmsg, int sock, int nl80211_family, uint32_t ifindex, struct join_ibss_props* props, bool dofail) { struct genlmsghdr genlhdr; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = NL80211_CMD_JOIN_IBSS; netlink_init(nlmsg, nl80211_family, 0, &genlhdr, sizeof(genlhdr)); netlink_attr(nlmsg, NL80211_ATTR_IFINDEX, &ifindex, sizeof(ifindex)); netlink_attr(nlmsg, NL80211_ATTR_SSID, props->ssid, props->ssid_len); netlink_attr(nlmsg, NL80211_ATTR_WIPHY_FREQ, &(props->wiphy_freq), sizeof(props->wiphy_freq)); if (props->mac) netlink_attr(nlmsg, NL80211_ATTR_MAC, props->mac, ETH_ALEN); if (props->wiphy_freq_fixed) netlink_attr(nlmsg, NL80211_ATTR_FREQ_FIXED, NULL, 0); int err = netlink_send_ext(nlmsg, sock, 0, NULL, dofail); if (err < 0) { } return err; } static int get_ifla_operstate(struct nlmsg* nlmsg, int ifindex, bool dofail) { struct ifinfomsg info; memset(&info, 0, sizeof(info)); info.ifi_family = AF_UNSPEC; info.ifi_index = ifindex; int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE); if (sock == -1) { return -1; } netlink_init(nlmsg, RTM_GETLINK, 0, &info, sizeof(info)); int n; int err = netlink_send_ext(nlmsg, sock, RTM_NEWLINK, &n, dofail); close(sock); if (err) { return -1; } struct rtattr* attr = IFLA_RTA(NLMSG_DATA(nlmsg->buf)); for (; RTA_OK(attr, n); attr = RTA_NEXT(attr, n)) { if (attr->rta_type == IFLA_OPERSTATE) return *((int32_t*)RTA_DATA(attr)); } return -1; } static int await_ifla_operstate(struct nlmsg* nlmsg, char* interface, int operstate, bool dofail) { int ifindex = if_nametoindex(interface); while (true) { usleep(1000); int ret = get_ifla_operstate(nlmsg, ifindex, dofail); if (ret < 0) return ret; if (ret == operstate) return 0; } return 0; } static int nl80211_setup_ibss_interface(struct nlmsg* nlmsg, int sock, int nl80211_family_id, char* interface, struct join_ibss_props* ibss_props, bool dofail) { int ifindex = if_nametoindex(interface); if (ifindex == 0) { return -1; } int ret = nl80211_set_interface(nlmsg, sock, nl80211_family_id, ifindex, NL80211_IFTYPE_ADHOC, dofail); if (ret < 0) { return -1; } ret = set_interface_state(interface, 1); if (ret < 0) { return -1; } ret = nl80211_join_ibss(nlmsg, sock, nl80211_family_id, ifindex, ibss_props, dofail); if (ret < 0) { return -1; } return 0; } #define SIZEOF_IO_URING_SQE 64 #define SIZEOF_IO_URING_CQE 16 #define SQ_HEAD_OFFSET 0 #define SQ_TAIL_OFFSET 64 #define SQ_RING_MASK_OFFSET 256 #define SQ_RING_ENTRIES_OFFSET 264 #define SQ_FLAGS_OFFSET 276 #define SQ_DROPPED_OFFSET 272 #define CQ_HEAD_OFFSET 128 #define CQ_TAIL_OFFSET 192 #define CQ_RING_MASK_OFFSET 260 #define CQ_RING_ENTRIES_OFFSET 268 #define CQ_RING_OVERFLOW_OFFSET 284 #define CQ_FLAGS_OFFSET 280 #define CQ_CQES_OFFSET 320 struct io_uring_cqe { uint64_t user_data; uint32_t res; uint32_t flags; }; static long syz_io_uring_complete(volatile long a0) { char* ring_ptr = (char*)a0; uint32_t cq_ring_mask = *(uint32_t*)(ring_ptr + CQ_RING_MASK_OFFSET); uint32_t* cq_head_ptr = (uint32_t*)(ring_ptr + CQ_HEAD_OFFSET); uint32_t cq_head = *cq_head_ptr & cq_ring_mask; uint32_t cq_head_next = *cq_head_ptr + 1; char* cqe_src = ring_ptr + CQ_CQES_OFFSET + cq_head * SIZEOF_IO_URING_CQE; struct io_uring_cqe cqe; memcpy(&cqe, cqe_src, sizeof(cqe)); __atomic_store_n(cq_head_ptr, cq_head_next, __ATOMIC_RELEASE); return (cqe.user_data == 0x12345 || cqe.user_data == 0x23456) ? (long)cqe.res : (long)-1; } struct io_sqring_offsets { uint32_t head; uint32_t tail; uint32_t ring_mask; uint32_t ring_entries; uint32_t flags; uint32_t dropped; uint32_t array; uint32_t resv1; uint64_t resv2; }; struct io_cqring_offsets { uint32_t head; uint32_t tail; uint32_t ring_mask; uint32_t ring_entries; uint32_t overflow; uint32_t cqes; uint64_t resv[2]; }; struct io_uring_params { uint32_t sq_entries; uint32_t cq_entries; uint32_t flags; uint32_t sq_thread_cpu; uint32_t sq_thread_idle; uint32_t features; uint32_t resv[4]; struct io_sqring_offsets sq_off; struct io_cqring_offsets cq_off; }; #define IORING_OFF_SQ_RING 0 #define IORING_OFF_SQES 0x10000000ULL #define IORING_SETUP_SQE128 (1U << 10) #define IORING_SETUP_CQE32 (1U << 11) static long syz_io_uring_setup(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { uint32_t entries = (uint32_t)a0; struct io_uring_params* setup_params = (struct io_uring_params*)a1; void** ring_ptr_out = (void**)a2; void** sqes_ptr_out = (void**)a3; setup_params->flags &= ~(IORING_SETUP_CQE32 | IORING_SETUP_SQE128); uint32_t fd_io_uring = syscall(__NR_io_uring_setup, entries, setup_params); uint32_t sq_ring_sz = setup_params->sq_off.array + setup_params->sq_entries * sizeof(uint32_t); uint32_t cq_ring_sz = setup_params->cq_off.cqes + setup_params->cq_entries * SIZEOF_IO_URING_CQE; uint32_t ring_sz = sq_ring_sz > cq_ring_sz ? sq_ring_sz : cq_ring_sz; *ring_ptr_out = mmap(0, ring_sz, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_POPULATE, fd_io_uring, IORING_OFF_SQ_RING); uint32_t sqes_sz = setup_params->sq_entries * SIZEOF_IO_URING_SQE; *sqes_ptr_out = mmap(0, sqes_sz, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_POPULATE, fd_io_uring, IORING_OFF_SQES); uint32_t* array = (uint32_t*)((uintptr_t)*ring_ptr_out + setup_params->sq_off.array); for (uint32_t index = 0; index < entries; index++) array[index] = index; return fd_io_uring; } static long syz_io_uring_submit(volatile long a0, volatile long a1, volatile long a2) { char* ring_ptr = (char*)a0; char* sqes_ptr = (char*)a1; char* sqe = (char*)a2; uint32_t sq_ring_mask = *(uint32_t*)(ring_ptr + SQ_RING_MASK_OFFSET); uint32_t* sq_tail_ptr = (uint32_t*)(ring_ptr + SQ_TAIL_OFFSET); uint32_t sq_tail = *sq_tail_ptr & sq_ring_mask; char* sqe_dest = sqes_ptr + sq_tail * SIZEOF_IO_URING_SQE; memcpy(sqe_dest, sqe, SIZEOF_IO_URING_SQE); uint32_t sq_tail_next = *sq_tail_ptr + 1; __atomic_store_n(sq_tail_ptr, sq_tail_next, __ATOMIC_RELEASE); return 0; } #define VHCI_HC_PORTS 8 #define VHCI_PORTS (VHCI_HC_PORTS * 2) static long syz_usbip_server_init(volatile long a0) { static int port_alloc[2]; int speed = (int)a0; bool usb3 = (speed == USB_SPEED_SUPER); int socket_pair[2]; if (socketpair(AF_UNIX, SOCK_STREAM, 0, socket_pair)) { return -1; } int client_fd = socket_pair[0]; int server_fd = socket_pair[1]; int available_port_num = __atomic_fetch_add(&port_alloc[usb3], 1, __ATOMIC_RELAXED); if (available_port_num > VHCI_HC_PORTS) { return -1; } int port_num = procid * VHCI_PORTS + usb3 * VHCI_HC_PORTS + available_port_num; char buffer[100]; sprintf(buffer, "%d %d %s %d", port_num, client_fd, "0", speed); write_file("/sys/devices/platform/vhci_hcd.0/attach", buffer); return server_fd; } #define BTF_MAGIC 0xeB9F struct btf_header { __u16 magic; __u8 version; __u8 flags; __u32 hdr_len; __u32 type_off; __u32 type_len; __u32 str_off; __u32 str_len; }; #define BTF_INFO_KIND(info) (((info) >> 24) & 0x0f) #define BTF_INFO_VLEN(info) ((info) & 0xffff) #define BTF_KIND_INT 1 #define BTF_KIND_ARRAY 3 #define BTF_KIND_STRUCT 4 #define BTF_KIND_UNION 5 #define BTF_KIND_ENUM 6 #define BTF_KIND_FUNC_PROTO 13 #define BTF_KIND_VAR 14 #define BTF_KIND_DATASEC 15 struct btf_type { __u32 name_off; __u32 info; union { __u32 size; __u32 type; }; }; struct btf_enum { __u32 name_off; __s32 val; }; struct btf_array { __u32 type; __u32 index_type; __u32 nelems; }; struct btf_member { __u32 name_off; __u32 type; __u32 offset; }; struct btf_param { __u32 name_off; __u32 type; }; struct btf_var { __u32 linkage; }; struct btf_var_secinfo { __u32 type; __u32 offset; __u32 size; }; #define VMLINUX_MAX_SUPPORT_SIZE (10 * 1024 * 1024) static char* read_btf_vmlinux() { static bool is_read = false; static char buf[VMLINUX_MAX_SUPPORT_SIZE]; if (is_read) return buf; int fd = open("/sys/kernel/btf/vmlinux", O_RDONLY); if (fd < 0) return NULL; unsigned long bytes_read = 0; for (;;) { ssize_t ret = read(fd, buf + bytes_read, VMLINUX_MAX_SUPPORT_SIZE - bytes_read); if (ret < 0 || bytes_read + ret == VMLINUX_MAX_SUPPORT_SIZE) return NULL; if (ret == 0) break; bytes_read += ret; } is_read = true; return buf; } static long syz_btf_id_by_name(volatile long a0) { char* target = (char*)a0; char* vmlinux = read_btf_vmlinux(); if (vmlinux == NULL) return -1; struct btf_header* btf_header = (struct btf_header*)vmlinux; if (btf_header->magic != BTF_MAGIC) return -1; char* btf_type_sec = vmlinux + btf_header->hdr_len + btf_header->type_off; char* btf_str_sec = vmlinux + btf_header->hdr_len + btf_header->str_off; unsigned int bytes_parsed = 0; long idx = 1; while (bytes_parsed < btf_header->type_len) { struct btf_type* btf_type = (struct btf_type*)(btf_type_sec + bytes_parsed); uint32_t kind = BTF_INFO_KIND(btf_type->info); uint32_t vlen = BTF_INFO_VLEN(btf_type->info); char* name = btf_str_sec + btf_type->name_off; if (strcmp(name, target) == 0) return idx; size_t skip; switch (kind) { case BTF_KIND_INT: skip = sizeof(uint32_t); break; case BTF_KIND_ENUM: skip = sizeof(struct btf_enum) * vlen; break; case BTF_KIND_ARRAY: skip = sizeof(struct btf_array); break; case BTF_KIND_STRUCT: case BTF_KIND_UNION: skip = sizeof(struct btf_member) * vlen; break; case BTF_KIND_FUNC_PROTO: skip = sizeof(struct btf_param) * vlen; break; case BTF_KIND_VAR: skip = sizeof(struct btf_var); break; case BTF_KIND_DATASEC: skip = sizeof(struct btf_var_secinfo) * vlen; break; default: skip = 0; } bytes_parsed += sizeof(struct btf_type) + skip; idx++; } return -1; } static long syz_memcpy_off(volatile long a0, volatile long a1, volatile long a2, volatile long a3, volatile long a4) { char* dest = (char*)a0; uint32_t dest_off = (uint32_t)a1; char* src = (char*)a2; uint32_t src_off = (uint32_t)a3; size_t n = (size_t)a4; return (long)memcpy(dest + dest_off, src + src_off, n); } static long syz_create_resource(volatile long val) { return val; } #define MAX_FDS 30 #define USB_MAX_IFACE_NUM 4 #define USB_MAX_EP_NUM 32 #define USB_MAX_FDS 6 struct usb_endpoint_index { struct usb_endpoint_descriptor desc; int handle; }; struct usb_iface_index { struct usb_interface_descriptor* iface; uint8_t bInterfaceNumber; uint8_t bAlternateSetting; uint8_t bInterfaceClass; struct usb_endpoint_index eps[USB_MAX_EP_NUM]; int eps_num; }; struct usb_device_index { struct usb_device_descriptor* dev; struct usb_config_descriptor* config; uint8_t bDeviceClass; uint8_t bMaxPower; int config_length; struct usb_iface_index ifaces[USB_MAX_IFACE_NUM]; int ifaces_num; int iface_cur; }; struct usb_info { int fd; struct usb_device_index index; }; static struct usb_info usb_devices[USB_MAX_FDS]; static struct usb_device_index* lookup_usb_index(int fd) { for (int i = 0; i < USB_MAX_FDS; i++) { if (__atomic_load_n(&usb_devices[i].fd, __ATOMIC_ACQUIRE) == fd) return &usb_devices[i].index; } return NULL; } static int usb_devices_num; static bool parse_usb_descriptor(const char* buffer, size_t length, struct usb_device_index* index) { if (length < sizeof(*index->dev) + sizeof(*index->config)) return false; memset(index, 0, sizeof(*index)); index->dev = (struct usb_device_descriptor*)buffer; index->config = (struct usb_config_descriptor*)(buffer + sizeof(*index->dev)); index->bDeviceClass = index->dev->bDeviceClass; index->bMaxPower = index->config->bMaxPower; index->config_length = length - sizeof(*index->dev); index->iface_cur = -1; size_t offset = 0; while (true) { if (offset + 1 >= length) break; uint8_t desc_length = buffer[offset]; uint8_t desc_type = buffer[offset + 1]; if (desc_length <= 2) break; if (offset + desc_length > length) break; if (desc_type == USB_DT_INTERFACE && index->ifaces_num < USB_MAX_IFACE_NUM) { struct usb_interface_descriptor* iface = (struct usb_interface_descriptor*)(buffer + offset); index->ifaces[index->ifaces_num].iface = iface; index->ifaces[index->ifaces_num].bInterfaceNumber = iface->bInterfaceNumber; index->ifaces[index->ifaces_num].bAlternateSetting = iface->bAlternateSetting; index->ifaces[index->ifaces_num].bInterfaceClass = iface->bInterfaceClass; index->ifaces_num++; } if (desc_type == USB_DT_ENDPOINT && index->ifaces_num > 0) { struct usb_iface_index* iface = &index->ifaces[index->ifaces_num - 1]; if (iface->eps_num < USB_MAX_EP_NUM) { memcpy(&iface->eps[iface->eps_num].desc, buffer + offset, sizeof(iface->eps[iface->eps_num].desc)); iface->eps_num++; } } offset += desc_length; } return true; } static struct usb_device_index* add_usb_index(int fd, const char* dev, size_t dev_len) { int i = __atomic_fetch_add(&usb_devices_num, 1, __ATOMIC_RELAXED); if (i >= USB_MAX_FDS) return NULL; if (!parse_usb_descriptor(dev, dev_len, &usb_devices[i].index)) return NULL; __atomic_store_n(&usb_devices[i].fd, fd, __ATOMIC_RELEASE); return &usb_devices[i].index; } struct vusb_connect_string_descriptor { uint32_t len; char* str; } __attribute__((packed)); struct vusb_connect_descriptors { uint32_t qual_len; char* qual; uint32_t bos_len; char* bos; uint32_t strs_len; struct vusb_connect_string_descriptor strs[0]; } __attribute__((packed)); static const char default_string[] = { 8, USB_DT_STRING, 's', 0, 'y', 0, 'z', 0 }; static const char default_lang_id[] = { 4, USB_DT_STRING, 0x09, 0x04 }; static bool lookup_connect_response_in(int fd, const struct vusb_connect_descriptors* descs, const struct usb_ctrlrequest* ctrl, struct usb_qualifier_descriptor* qual, char** response_data, uint32_t* response_length) { struct usb_device_index* index = lookup_usb_index(fd); uint8_t str_idx; if (!index) return false; switch (ctrl->bRequestType & USB_TYPE_MASK) { case USB_TYPE_STANDARD: switch (ctrl->bRequest) { case USB_REQ_GET_DESCRIPTOR: switch (ctrl->wValue >> 8) { case USB_DT_DEVICE: *response_data = (char*)index->dev; *response_length = sizeof(*index->dev); return true; case USB_DT_CONFIG: *response_data = (char*)index->config; *response_length = index->config_length; return true; case USB_DT_STRING: str_idx = (uint8_t)ctrl->wValue; if (descs && str_idx < descs->strs_len) { *response_data = descs->strs[str_idx].str; *response_length = descs->strs[str_idx].len; return true; } if (str_idx == 0) { *response_data = (char*)&default_lang_id[0]; *response_length = default_lang_id[0]; return true; } *response_data = (char*)&default_string[0]; *response_length = default_string[0]; return true; case USB_DT_BOS: *response_data = descs->bos; *response_length = descs->bos_len; return true; case USB_DT_DEVICE_QUALIFIER: if (!descs->qual) { qual->bLength = sizeof(*qual); qual->bDescriptorType = USB_DT_DEVICE_QUALIFIER; qual->bcdUSB = index->dev->bcdUSB; qual->bDeviceClass = index->dev->bDeviceClass; qual->bDeviceSubClass = index->dev->bDeviceSubClass; qual->bDeviceProtocol = index->dev->bDeviceProtocol; qual->bMaxPacketSize0 = index->dev->bMaxPacketSize0; qual->bNumConfigurations = index->dev->bNumConfigurations; qual->bRESERVED = 0; *response_data = (char*)qual; *response_length = sizeof(*qual); return true; } *response_data = descs->qual; *response_length = descs->qual_len; return true; default: break; } break; default: break; } break; default: break; } return false; } typedef bool (*lookup_connect_out_response_t)(int fd, const struct vusb_connect_descriptors* descs, const struct usb_ctrlrequest* ctrl, bool* done); static bool lookup_connect_response_out_generic(int fd, const struct vusb_connect_descriptors* descs, const struct usb_ctrlrequest* ctrl, bool* done) { switch (ctrl->bRequestType & USB_TYPE_MASK) { case USB_TYPE_STANDARD: switch (ctrl->bRequest) { case USB_REQ_SET_CONFIGURATION: *done = true; return true; default: break; } break; } return false; } #define ATH9K_FIRMWARE_DOWNLOAD 0x30 #define ATH9K_FIRMWARE_DOWNLOAD_COMP 0x31 static bool lookup_connect_response_out_ath9k(int fd, const struct vusb_connect_descriptors* descs, const struct usb_ctrlrequest* ctrl, bool* done) { switch (ctrl->bRequestType & USB_TYPE_MASK) { case USB_TYPE_STANDARD: switch (ctrl->bRequest) { case USB_REQ_SET_CONFIGURATION: return true; default: break; } break; case USB_TYPE_VENDOR: switch (ctrl->bRequest) { case ATH9K_FIRMWARE_DOWNLOAD: return true; case ATH9K_FIRMWARE_DOWNLOAD_COMP: *done = true; return true; default: break; } break; } return false; } struct vusb_descriptor { uint8_t req_type; uint8_t desc_type; uint32_t len; char data[0]; } __attribute__((packed)); struct vusb_descriptors { uint32_t len; struct vusb_descriptor* generic; struct vusb_descriptor* descs[0]; } __attribute__((packed)); struct vusb_response { uint8_t type; uint8_t req; uint32_t len; char data[0]; } __attribute__((packed)); struct vusb_responses { uint32_t len; struct vusb_response* generic; struct vusb_response* resps[0]; } __attribute__((packed)); static bool lookup_control_response(const struct vusb_descriptors* descs, const struct vusb_responses* resps, struct usb_ctrlrequest* ctrl, char** response_data, uint32_t* response_length) { int descs_num = 0; int resps_num = 0; if (descs) descs_num = (descs->len - offsetof(struct vusb_descriptors, descs)) / sizeof(descs->descs[0]); if (resps) resps_num = (resps->len - offsetof(struct vusb_responses, resps)) / sizeof(resps->resps[0]); uint8_t req = ctrl->bRequest; uint8_t req_type = ctrl->bRequestType & USB_TYPE_MASK; uint8_t desc_type = ctrl->wValue >> 8; if (req == USB_REQ_GET_DESCRIPTOR) { int i; for (i = 0; i < descs_num; i++) { struct vusb_descriptor* desc = descs->descs[i]; if (!desc) continue; if (desc->req_type == req_type && desc->desc_type == desc_type) { *response_length = desc->len; if (*response_length != 0) *response_data = &desc->data[0]; else *response_data = NULL; return true; } } if (descs && descs->generic) { *response_data = &descs->generic->data[0]; *response_length = descs->generic->len; return true; } } else { int i; for (i = 0; i < resps_num; i++) { struct vusb_response* resp = resps->resps[i]; if (!resp) continue; if (resp->type == req_type && resp->req == req) { *response_length = resp->len; if (*response_length != 0) *response_data = &resp->data[0]; else *response_data = NULL; return true; } } if (resps && resps->generic) { *response_data = &resps->generic->data[0]; *response_length = resps->generic->len; return true; } } return false; } #define UDC_NAME_LENGTH_MAX 128 struct usb_raw_init { __u8 driver_name[UDC_NAME_LENGTH_MAX]; __u8 device_name[UDC_NAME_LENGTH_MAX]; __u8 speed; }; enum usb_raw_event_type { USB_RAW_EVENT_INVALID = 0, USB_RAW_EVENT_CONNECT = 1, USB_RAW_EVENT_CONTROL = 2, }; struct usb_raw_event { __u32 type; __u32 length; __u8 data[0]; }; struct usb_raw_ep_io { __u16 ep; __u16 flags; __u32 length; __u8 data[0]; }; #define USB_RAW_EPS_NUM_MAX 30 #define USB_RAW_EP_NAME_MAX 16 #define USB_RAW_EP_ADDR_ANY 0xff struct usb_raw_ep_caps { __u32 type_control : 1; __u32 type_iso : 1; __u32 type_bulk : 1; __u32 type_int : 1; __u32 dir_in : 1; __u32 dir_out : 1; }; struct usb_raw_ep_limits { __u16 maxpacket_limit; __u16 max_streams; __u32 reserved; }; struct usb_raw_ep_info { __u8 name[USB_RAW_EP_NAME_MAX]; __u32 addr; struct usb_raw_ep_caps caps; struct usb_raw_ep_limits limits; }; struct usb_raw_eps_info { struct usb_raw_ep_info eps[USB_RAW_EPS_NUM_MAX]; }; #define USB_RAW_IOCTL_INIT _IOW('U', 0, struct usb_raw_init) #define USB_RAW_IOCTL_RUN _IO('U', 1) #define USB_RAW_IOCTL_EVENT_FETCH _IOR('U', 2, struct usb_raw_event) #define USB_RAW_IOCTL_EP0_WRITE _IOW('U', 3, struct usb_raw_ep_io) #define USB_RAW_IOCTL_EP0_READ _IOWR('U', 4, struct usb_raw_ep_io) #define USB_RAW_IOCTL_EP_ENABLE _IOW('U', 5, struct usb_endpoint_descriptor) #define USB_RAW_IOCTL_EP_DISABLE _IOW('U', 6, __u32) #define USB_RAW_IOCTL_EP_WRITE _IOW('U', 7, struct usb_raw_ep_io) #define USB_RAW_IOCTL_EP_READ _IOWR('U', 8, struct usb_raw_ep_io) #define USB_RAW_IOCTL_CONFIGURE _IO('U', 9) #define USB_RAW_IOCTL_VBUS_DRAW _IOW('U', 10, __u32) #define USB_RAW_IOCTL_EPS_INFO _IOR('U', 11, struct usb_raw_eps_info) #define USB_RAW_IOCTL_EP0_STALL _IO('U', 12) #define USB_RAW_IOCTL_EP_SET_HALT _IOW('U', 13, __u32) #define USB_RAW_IOCTL_EP_CLEAR_HALT _IOW('U', 14, __u32) #define USB_RAW_IOCTL_EP_SET_WEDGE _IOW('U', 15, __u32) static int usb_raw_open() { return open("/dev/raw-gadget", O_RDWR); } static int usb_raw_init(int fd, uint32_t speed, const char* driver, const char* device) { struct usb_raw_init arg; strncpy((char*)&arg.driver_name[0], driver, sizeof(arg.driver_name)); strncpy((char*)&arg.device_name[0], device, sizeof(arg.device_name)); arg.speed = speed; return ioctl(fd, USB_RAW_IOCTL_INIT, &arg); } static int usb_raw_run(int fd) { return ioctl(fd, USB_RAW_IOCTL_RUN, 0); } static int usb_raw_ep_write(int fd, struct usb_raw_ep_io* io) { return ioctl(fd, USB_RAW_IOCTL_EP_WRITE, io); } static int usb_raw_ep_read(int fd, struct usb_raw_ep_io* io) { return ioctl(fd, USB_RAW_IOCTL_EP_READ, io); } static int usb_raw_configure(int fd) { return ioctl(fd, USB_RAW_IOCTL_CONFIGURE, 0); } static int usb_raw_vbus_draw(int fd, uint32_t power) { return ioctl(fd, USB_RAW_IOCTL_VBUS_DRAW, power); } static int usb_raw_ep0_write(int fd, struct usb_raw_ep_io* io) { return ioctl(fd, USB_RAW_IOCTL_EP0_WRITE, io); } static int usb_raw_ep0_read(int fd, struct usb_raw_ep_io* io) { return ioctl(fd, USB_RAW_IOCTL_EP0_READ, io); } static int usb_raw_event_fetch(int fd, struct usb_raw_event* event) { return ioctl(fd, USB_RAW_IOCTL_EVENT_FETCH, event); } static int usb_raw_ep_enable(int fd, struct usb_endpoint_descriptor* desc) { return ioctl(fd, USB_RAW_IOCTL_EP_ENABLE, desc); } static int usb_raw_ep_disable(int fd, int ep) { return ioctl(fd, USB_RAW_IOCTL_EP_DISABLE, ep); } static int usb_raw_ep0_stall(int fd) { return ioctl(fd, USB_RAW_IOCTL_EP0_STALL, 0); } static int lookup_interface(int fd, uint8_t bInterfaceNumber, uint8_t bAlternateSetting) { struct usb_device_index* index = lookup_usb_index(fd); if (!index) return -1; for (int i = 0; i < index->ifaces_num; i++) { if (index->ifaces[i].bInterfaceNumber == bInterfaceNumber && index->ifaces[i].bAlternateSetting == bAlternateSetting) return i; } return -1; } static int lookup_endpoint(int fd, uint8_t bEndpointAddress) { struct usb_device_index* index = lookup_usb_index(fd); if (!index) return -1; if (index->iface_cur < 0) return -1; for (int ep = 0; ep < index->ifaces[index->iface_cur].eps_num; ep++) if (index->ifaces[index->iface_cur].eps[ep].desc.bEndpointAddress == bEndpointAddress) return index->ifaces[index->iface_cur].eps[ep].handle; return -1; } #define USB_MAX_PACKET_SIZE 4096 struct usb_raw_control_event { struct usb_raw_event inner; struct usb_ctrlrequest ctrl; char data[USB_MAX_PACKET_SIZE]; }; struct usb_raw_ep_io_data { struct usb_raw_ep_io inner; char data[USB_MAX_PACKET_SIZE]; }; static void set_interface(int fd, int n) { struct usb_device_index* index = lookup_usb_index(fd); if (!index) return; if (index->iface_cur >= 0 && index->iface_cur < index->ifaces_num) { for (int ep = 0; ep < index->ifaces[index->iface_cur].eps_num; ep++) { int rv = usb_raw_ep_disable(fd, index->ifaces[index->iface_cur].eps[ep].handle); if (rv < 0) { } else { } } } if (n >= 0 && n < index->ifaces_num) { for (int ep = 0; ep < index->ifaces[n].eps_num; ep++) { int rv = usb_raw_ep_enable(fd, &index->ifaces[n].eps[ep].desc); if (rv < 0) { } else { index->ifaces[n].eps[ep].handle = rv; } } index->iface_cur = n; } } static int configure_device(int fd) { struct usb_device_index* index = lookup_usb_index(fd); if (!index) return -1; int rv = usb_raw_vbus_draw(fd, index->bMaxPower); if (rv < 0) { return rv; } rv = usb_raw_configure(fd); if (rv < 0) { return rv; } set_interface(fd, 0); return 0; } static volatile long syz_usb_connect_impl(uint64_t speed, uint64_t dev_len, const char* dev, const struct vusb_connect_descriptors* descs, lookup_connect_out_response_t lookup_connect_response_out) { if (!dev) { return -1; } int fd = usb_raw_open(); if (fd < 0) { return fd; } if (fd >= MAX_FDS) { close(fd); return -1; } struct usb_device_index* index = add_usb_index(fd, dev, dev_len); if (!index) { return -1; } char device[32]; sprintf(&device[0], "dummy_udc.%llu", procid); int rv = usb_raw_init(fd, speed, "dummy_udc", &device[0]); if (rv < 0) { return rv; } rv = usb_raw_run(fd); if (rv < 0) { return rv; } bool done = false; while (!done) { struct usb_raw_control_event event; event.inner.type = 0; event.inner.length = sizeof(event.ctrl); rv = usb_raw_event_fetch(fd, (struct usb_raw_event*)&event); if (rv < 0) { return rv; } if (event.inner.type != USB_RAW_EVENT_CONTROL) continue; char* response_data = NULL; uint32_t response_length = 0; struct usb_qualifier_descriptor qual; if (event.ctrl.bRequestType & USB_DIR_IN) { if (!lookup_connect_response_in(fd, descs, &event.ctrl, &qual, &response_data, &response_length)) { usb_raw_ep0_stall(fd); continue; } } else { if (!lookup_connect_response_out(fd, descs, &event.ctrl, &done)) { usb_raw_ep0_stall(fd); continue; } response_data = NULL; response_length = event.ctrl.wLength; } if ((event.ctrl.bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD && event.ctrl.bRequest == USB_REQ_SET_CONFIGURATION) { rv = configure_device(fd); if (rv < 0) { return rv; } } struct usb_raw_ep_io_data response; response.inner.ep = 0; response.inner.flags = 0; if (response_length > sizeof(response.data)) response_length = 0; if (event.ctrl.wLength < response_length) response_length = event.ctrl.wLength; response.inner.length = response_length; if (response_data) memcpy(&response.data[0], response_data, response_length); else memset(&response.data[0], 0, response_length); if (event.ctrl.bRequestType & USB_DIR_IN) { rv = usb_raw_ep0_write(fd, (struct usb_raw_ep_io*)&response); } else { rv = usb_raw_ep0_read(fd, (struct usb_raw_ep_io*)&response); } if (rv < 0) { return rv; } } sleep_ms(200); return fd; } static volatile long syz_usb_connect(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { uint64_t speed = a0; uint64_t dev_len = a1; const char* dev = (const char*)a2; const struct vusb_connect_descriptors* descs = (const struct vusb_connect_descriptors*)a3; return syz_usb_connect_impl(speed, dev_len, dev, descs, &lookup_connect_response_out_generic); } static volatile long syz_usb_connect_ath9k(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { uint64_t speed = a0; uint64_t dev_len = a1; const char* dev = (const char*)a2; const struct vusb_connect_descriptors* descs = (const struct vusb_connect_descriptors*)a3; return syz_usb_connect_impl(speed, dev_len, dev, descs, &lookup_connect_response_out_ath9k); } static volatile long syz_usb_control_io(volatile long a0, volatile long a1, volatile long a2) { int fd = a0; const struct vusb_descriptors* descs = (const struct vusb_descriptors*)a1; const struct vusb_responses* resps = (const struct vusb_responses*)a2; struct usb_raw_control_event event; event.inner.type = 0; event.inner.length = USB_MAX_PACKET_SIZE; int rv = usb_raw_event_fetch(fd, (struct usb_raw_event*)&event); if (rv < 0) { return rv; } if (event.inner.type != USB_RAW_EVENT_CONTROL) { return -1; } char* response_data = NULL; uint32_t response_length = 0; if ((event.ctrl.bRequestType & USB_DIR_IN) && event.ctrl.wLength) { if (!lookup_control_response(descs, resps, &event.ctrl, &response_data, &response_length)) { usb_raw_ep0_stall(fd); return -1; } } else { if ((event.ctrl.bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD || event.ctrl.bRequest == USB_REQ_SET_INTERFACE) { int iface_num = event.ctrl.wIndex; int alt_set = event.ctrl.wValue; int iface_index = lookup_interface(fd, iface_num, alt_set); if (iface_index < 0) { } else { set_interface(fd, iface_index); } } response_length = event.ctrl.wLength; } struct usb_raw_ep_io_data response; response.inner.ep = 0; response.inner.flags = 0; if (response_length > sizeof(response.data)) response_length = 0; if (event.ctrl.wLength < response_length) response_length = event.ctrl.wLength; if ((event.ctrl.bRequestType & USB_DIR_IN) && !event.ctrl.wLength) { response_length = USB_MAX_PACKET_SIZE; } response.inner.length = response_length; if (response_data) memcpy(&response.data[0], response_data, response_length); else memset(&response.data[0], 0, response_length); if ((event.ctrl.bRequestType & USB_DIR_IN) && event.ctrl.wLength) { rv = usb_raw_ep0_write(fd, (struct usb_raw_ep_io*)&response); } else { rv = usb_raw_ep0_read(fd, (struct usb_raw_ep_io*)&response); } if (rv < 0) { return rv; } sleep_ms(200); return 0; } static volatile long syz_usb_ep_write(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { int fd = a0; uint8_t ep = a1; uint32_t len = a2; char* data = (char*)a3; int ep_handle = lookup_endpoint(fd, ep); if (ep_handle < 0) { return -1; } struct usb_raw_ep_io_data io_data; io_data.inner.ep = ep_handle; io_data.inner.flags = 0; if (len > sizeof(io_data.data)) len = sizeof(io_data.data); io_data.inner.length = len; memcpy(&io_data.data[0], data, len); int rv = usb_raw_ep_write(fd, (struct usb_raw_ep_io*)&io_data); if (rv < 0) { return rv; } sleep_ms(200); return 0; } static volatile long syz_usb_ep_read(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { int fd = a0; uint8_t ep = a1; uint32_t len = a2; char* data = (char*)a3; int ep_handle = lookup_endpoint(fd, ep); if (ep_handle < 0) { return -1; } struct usb_raw_ep_io_data io_data; io_data.inner.ep = ep_handle; io_data.inner.flags = 0; if (len > sizeof(io_data.data)) len = sizeof(io_data.data); io_data.inner.length = len; int rv = usb_raw_ep_read(fd, (struct usb_raw_ep_io*)&io_data); if (rv < 0) { return rv; } memcpy(&data[0], &io_data.data[0], io_data.inner.length); sleep_ms(200); return 0; } static volatile long syz_usb_disconnect(volatile long a0) { int fd = a0; int rv = close(fd); sleep_ms(200); return rv; } static long syz_open_dev(volatile long a0, volatile long a1, volatile long a2) { if (a0 == 0xc || a0 == 0xb) { char buf[128]; sprintf(buf, "/dev/%s/%d:%d", a0 == 0xc ? "char" : "block", (uint8_t)a1, (uint8_t)a2); return open(buf, O_RDWR, 0); } else { unsigned long nb = a1; char buf[1024]; char* hash; strncpy(buf, (char*)a0, sizeof(buf) - 1); buf[sizeof(buf) - 1] = 0; while ((hash = strchr(buf, '#'))) { *hash = '0' + (char)(nb % 10); nb /= 10; } return open(buf, a2 & ~O_CREAT, 0); } } static long syz_open_procfs(volatile long a0, volatile long a1) { char buf[128]; memset(buf, 0, sizeof(buf)); if (a0 == 0) { snprintf(buf, sizeof(buf), "/proc/self/%s", (char*)a1); } else if (a0 == -1) { snprintf(buf, sizeof(buf), "/proc/thread-self/%s", (char*)a1); } else { snprintf(buf, sizeof(buf), "/proc/self/task/%d/%s", (int)a0, (char*)a1); } int fd = open(buf, O_RDWR); if (fd == -1) fd = open(buf, O_RDONLY); return fd; } static long syz_open_pts(volatile long a0, volatile long a1) { int ptyno = 0; if (ioctl(a0, TIOCGPTN, &ptyno)) return -1; char buf[128]; sprintf(buf, "/dev/pts/%d", ptyno); return open(buf, a1, 0); } static long syz_init_net_socket(volatile long domain, volatile long type, volatile long proto) { int netns = open("/proc/self/ns/net", O_RDONLY); if (netns == -1) return netns; if (setns(kInitNetNsFd, 0)) return -1; int sock = syscall(__NR_socket, domain, type, proto); int err = errno; if (setns(netns, 0)) { exit(1); } close(netns); errno = err; return sock; } static long syz_socket_connect_nvme_tcp() { struct sockaddr_in nvme_local_address; int netns = open("/proc/self/ns/net", O_RDONLY); if (netns == -1) return netns; if (setns(kInitNetNsFd, 0)) return -1; int sock = syscall(__NR_socket, AF_INET, SOCK_STREAM, 0x0); int err = errno; if (setns(netns, 0)) { exit(1); } close(netns); errno = err; nvme_local_address.sin_family = AF_INET; nvme_local_address.sin_port = htobe16(4420); nvme_local_address.sin_addr.s_addr = htobe32(0x7f000001); err = syscall(__NR_connect, sock, &nvme_local_address, sizeof(nvme_local_address)); if (err != 0) { close(sock); return -1; } return sock; } static long syz_genetlink_get_family_id(volatile long name, volatile long sock_arg) { int fd = sock_arg; if (fd < 0) { fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC); if (fd == -1) { return -1; } } struct nlmsg nlmsg_tmp; int ret = netlink_query_family_id(&nlmsg_tmp, fd, (char*)name, false); if ((int)sock_arg < 0) close(fd); if (ret < 0) { return -1; } return ret; } //% This code is derived from puff.{c,h}, found in the zlib development. The //% original files come with the following copyright notice: //% Copyright (C) 2002-2013 Mark Adler, all rights reserved //% version 2.3, 21 Jan 2013 //% This software is provided 'as-is', without any express or implied //% warranty. In no event will the author be held liable for any damages //% arising from the use of this software. //% Permission is granted to anyone to use this software for any purpose, //% including commercial applications, and to alter it and redistribute it //% freely, subject to the following restrictions: //% 1. The origin of this software must not be misrepresented; you must not //% claim that you wrote the original software. If you use this software //% in a product, an acknowledgment in the product documentation would be //% appreciated but is not required. //% 2. Altered source versions must be plainly marked as such, and must not be //% misrepresented as being the original software. //% 3. This notice may not be removed or altered from any source distribution. //% Mark Adler madler@alumni.caltech.edu //% BEGIN CODE DERIVED FROM puff.{c,h} #define MAXBITS 15 #define MAXLCODES 286 #define MAXDCODES 30 #define MAXCODES (MAXLCODES + MAXDCODES) #define FIXLCODES 288 struct puff_state { unsigned char* out; unsigned long outlen; unsigned long outcnt; const unsigned char* in; unsigned long inlen; unsigned long incnt; int bitbuf; int bitcnt; jmp_buf env; }; static int puff_bits(struct puff_state* s, int need) { long val = s->bitbuf; while (s->bitcnt < need) { if (s->incnt == s->inlen) longjmp(s->env, 1); val |= (long)(s->in[s->incnt++]) << s->bitcnt; s->bitcnt += 8; } s->bitbuf = (int)(val >> need); s->bitcnt -= need; return (int)(val & ((1L << need) - 1)); } static int puff_stored(struct puff_state* s) { s->bitbuf = 0; s->bitcnt = 0; if (s->incnt + 4 > s->inlen) return 2; unsigned len = s->in[s->incnt++]; len |= s->in[s->incnt++] << 8; if (s->in[s->incnt++] != (~len & 0xff) || s->in[s->incnt++] != ((~len >> 8) & 0xff)) return -2; if (s->incnt + len > s->inlen) return 2; if (s->outcnt + len > s->outlen) return 1; for (; len--; s->outcnt++, s->incnt++) { if (s->in[s->incnt]) s->out[s->outcnt] = s->in[s->incnt]; } return 0; } struct puff_huffman { short* count; short* symbol; }; static int puff_decode(struct puff_state* s, const struct puff_huffman* h) { int first = 0; int index = 0; int bitbuf = s->bitbuf; int left = s->bitcnt; int code = first = index = 0; int len = 1; short* next = h->count + 1; while (1) { while (left--) { code |= bitbuf & 1; bitbuf >>= 1; int count = *next++; if (code - count < first) { s->bitbuf = bitbuf; s->bitcnt = (s->bitcnt - len) & 7; return h->symbol[index + (code - first)]; } index += count; first += count; first <<= 1; code <<= 1; len++; } left = (MAXBITS + 1) - len; if (left == 0) break; if (s->incnt == s->inlen) longjmp(s->env, 1); bitbuf = s->in[s->incnt++]; if (left > 8) left = 8; } return -10; } static int puff_construct(struct puff_huffman* h, const short* length, int n) { int len; for (len = 0; len <= MAXBITS; len++) h->count[len] = 0; int symbol; for (symbol = 0; symbol < n; symbol++) (h->count[length[symbol]])++; if (h->count[0] == n) return 0; int left = 1; for (len = 1; len <= MAXBITS; len++) { left <<= 1; left -= h->count[len]; if (left < 0) return left; } short offs[MAXBITS + 1]; offs[1] = 0; for (len = 1; len < MAXBITS; len++) offs[len + 1] = offs[len] + h->count[len]; for (symbol = 0; symbol < n; symbol++) if (length[symbol] != 0) h->symbol[offs[length[symbol]]++] = symbol; return left; } static int puff_codes(struct puff_state* s, const struct puff_huffman* lencode, const struct puff_huffman* distcode) { static const short lens[29] = { 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31, 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258}; static const short lext[29] = { 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0}; static const short dists[30] = { 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193, 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145, 8193, 12289, 16385, 24577}; static const short dext[30] = { 0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13}; int symbol; do { symbol = puff_decode(s, lencode); if (symbol < 0) return symbol; if (symbol < 256) { if (s->outcnt == s->outlen) return 1; if (symbol) s->out[s->outcnt] = symbol; s->outcnt++; } else if (symbol > 256) { symbol -= 257; if (symbol >= 29) return -10; int len = lens[symbol] + puff_bits(s, lext[symbol]); symbol = puff_decode(s, distcode); if (symbol < 0) return symbol; unsigned dist = dists[symbol] + puff_bits(s, dext[symbol]); if (dist > s->outcnt) return -11; if (s->outcnt + len > s->outlen) return 1; while (len--) { if (dist <= s->outcnt && s->out[s->outcnt - dist]) s->out[s->outcnt] = s->out[s->outcnt - dist]; s->outcnt++; } } } while (symbol != 256); return 0; } static int puff_fixed(struct puff_state* s) { static int virgin = 1; static short lencnt[MAXBITS + 1], lensym[FIXLCODES]; static short distcnt[MAXBITS + 1], distsym[MAXDCODES]; static struct puff_huffman lencode, distcode; if (virgin) { lencode.count = lencnt; lencode.symbol = lensym; distcode.count = distcnt; distcode.symbol = distsym; short lengths[FIXLCODES]; int symbol; for (symbol = 0; symbol < 144; symbol++) lengths[symbol] = 8; for (; symbol < 256; symbol++) lengths[symbol] = 9; for (; symbol < 280; symbol++) lengths[symbol] = 7; for (; symbol < FIXLCODES; symbol++) lengths[symbol] = 8; puff_construct(&lencode, lengths, FIXLCODES); for (symbol = 0; symbol < MAXDCODES; symbol++) lengths[symbol] = 5; puff_construct(&distcode, lengths, MAXDCODES); virgin = 0; } return puff_codes(s, &lencode, &distcode); } static int puff_dynamic(struct puff_state* s) { static const short order[19] = {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15}; int nlen = puff_bits(s, 5) + 257; int ndist = puff_bits(s, 5) + 1; int ncode = puff_bits(s, 4) + 4; if (nlen > MAXLCODES || ndist > MAXDCODES) return -3; short lengths[MAXCODES]; int index; for (index = 0; index < ncode; index++) lengths[order[index]] = puff_bits(s, 3); for (; index < 19; index++) lengths[order[index]] = 0; short lencnt[MAXBITS + 1], lensym[MAXLCODES]; struct puff_huffman lencode = {lencnt, lensym}; int err = puff_construct(&lencode, lengths, 19); if (err != 0) return -4; index = 0; while (index < nlen + ndist) { int symbol; int len; symbol = puff_decode(s, &lencode); if (symbol < 0) return symbol; if (symbol < 16) lengths[index++] = symbol; else { len = 0; if (symbol == 16) { if (index == 0) return -5; len = lengths[index - 1]; symbol = 3 + puff_bits(s, 2); } else if (symbol == 17) symbol = 3 + puff_bits(s, 3); else symbol = 11 + puff_bits(s, 7); if (index + symbol > nlen + ndist) return -6; while (symbol--) lengths[index++] = len; } } if (lengths[256] == 0) return -9; err = puff_construct(&lencode, lengths, nlen); if (err && (err < 0 || nlen != lencode.count[0] + lencode.count[1])) return -7; short distcnt[MAXBITS + 1], distsym[MAXDCODES]; struct puff_huffman distcode = {distcnt, distsym}; err = puff_construct(&distcode, lengths + nlen, ndist); if (err && (err < 0 || ndist != distcode.count[0] + distcode.count[1])) return -8; return puff_codes(s, &lencode, &distcode); } static int puff( unsigned char* dest, unsigned long* destlen, const unsigned char* source, unsigned long sourcelen) { struct puff_state s = { .out = dest, .outlen = *destlen, .outcnt = 0, .in = source, .inlen = sourcelen, .incnt = 0, .bitbuf = 0, .bitcnt = 0, }; int err; if (setjmp(s.env) != 0) err = 2; else { int last; do { last = puff_bits(&s, 1); int type = puff_bits(&s, 2); err = type == 0 ? puff_stored(&s) : (type == 1 ? puff_fixed(&s) : (type == 2 ? puff_dynamic(&s) : -1)); if (err != 0) break; } while (!last); } *destlen = s.outcnt; return err; } //% END CODE DERIVED FROM puff.{c,h} #define ZLIB_HEADER_WIDTH 2 static int puff_zlib_to_file(const unsigned char* source, unsigned long sourcelen, int dest_fd) { if (sourcelen < ZLIB_HEADER_WIDTH) return 0; source += ZLIB_HEADER_WIDTH; sourcelen -= ZLIB_HEADER_WIDTH; const unsigned long max_destlen = 132 << 20; void* ret = mmap(0, max_destlen, PROT_WRITE | PROT_READ, MAP_PRIVATE | MAP_ANON, -1, 0); if (ret == MAP_FAILED) return -1; unsigned char* dest = (unsigned char*)ret; unsigned long destlen = max_destlen; int err = puff(dest, &destlen, source, sourcelen); if (err) { munmap(dest, max_destlen); errno = -err; return -1; } if (write(dest_fd, dest, destlen) != (ssize_t)destlen) { munmap(dest, max_destlen); return -1; } return munmap(dest, max_destlen); } static int setup_loop_device(unsigned char* data, unsigned long size, const char* loopname, int* loopfd_p) { int err = 0, loopfd = -1; int memfd = syscall(__NR_memfd_create, "syzkaller", 0); if (memfd == -1) { err = errno; goto error; } if (puff_zlib_to_file(data, size, memfd)) { err = errno; goto error_close_memfd; } loopfd = open(loopname, O_RDWR); if (loopfd == -1) { err = errno; goto error_close_memfd; } if (ioctl(loopfd, LOOP_SET_FD, memfd)) { if (errno != EBUSY) { err = errno; goto error_close_loop; } ioctl(loopfd, LOOP_CLR_FD, 0); usleep(1000); if (ioctl(loopfd, LOOP_SET_FD, memfd)) { err = errno; goto error_close_loop; } } close(memfd); *loopfd_p = loopfd; return 0; error_close_loop: close(loopfd); error_close_memfd: close(memfd); error: errno = err; return -1; } static void reset_loop_device(const char* loopname) { int loopfd = open(loopname, O_RDWR); if (loopfd == -1) { return; } if (ioctl(loopfd, LOOP_CLR_FD, 0)) { } close(loopfd); } static long syz_mount_image( volatile long fsarg, volatile long dir, volatile long flags, volatile long optsarg, volatile long change_dir, volatile unsigned long size, volatile long image) { unsigned char* data = (unsigned char*)image; int res = -1, err = 0, need_loop_device = !!size; char* mount_opts = (char*)optsarg; char* target = (char*)dir; char* fs = (char*)fsarg; char* source = NULL; char loopname[64]; if (need_loop_device) { int loopfd; memset(loopname, 0, sizeof(loopname)); snprintf(loopname, sizeof(loopname), "/dev/loop%llu", procid); if (setup_loop_device(data, size, loopname, &loopfd) == -1) return -1; close(loopfd); source = loopname; } mkdir(target, 0777); char opts[256]; memset(opts, 0, sizeof(opts)); if (strlen(mount_opts) > (sizeof(opts) - 32)) { } strncpy(opts, mount_opts, sizeof(opts) - 32); if (strcmp(fs, "iso9660") == 0) { flags |= MS_RDONLY; } else if (strncmp(fs, "ext", 3) == 0) { bool has_remount_ro = false; char* remount_ro_start = strstr(opts, "errors=remount-ro"); if (remount_ro_start != NULL) { char after = *(remount_ro_start + strlen("errors=remount-ro")); char before = remount_ro_start == opts ? '\0' : *(remount_ro_start - 1); has_remount_ro = ((before == '\0' || before == ',') && (after == '\0' || after == ',')); } if (strstr(opts, "errors=panic") || !has_remount_ro) strcat(opts, ",errors=continue"); } else if (strcmp(fs, "xfs") == 0) { strcat(opts, ",nouuid"); } else if (strncmp(fs, "gfs2", 4) == 0 && (strstr(opts, "errors=panic") || strstr(opts, "debug"))) { strcat(opts, ",errors=withdraw"); } res = mount(source, target, fs, flags, opts); if (res == -1) { err = errno; goto error_clear_loop; } res = open(target, O_RDONLY | O_DIRECTORY); if (res == -1) { err = errno; goto error_clear_loop; } if (change_dir) { res = chdir(target); if (res == -1) { err = errno; } } error_clear_loop: if (need_loop_device) reset_loop_device(loopname); errno = err; return res; } #define noinline __attribute__((noinline)) #define __no_stack_protector #define __addrspace_guest #define __optnone #define GUEST_CODE __attribute__((section("guest"))) __no_stack_protector __addrspace_guest extern char *__start_guest, *__stop_guest; #define X86_ADDR_TEXT 0x0000 #define X86_ADDR_PD_IOAPIC 0x0000 #define X86_ADDR_GDT 0x1000 #define X86_ADDR_LDT 0x1800 #define X86_ADDR_PML4 0x2000 #define X86_ADDR_PDP 0x3000 #define X86_ADDR_PD 0x4000 #define X86_ADDR_STACK0 0x0f80 #define X86_ADDR_VAR_HLT 0x2800 #define X86_ADDR_VAR_SYSRET 0x2808 #define X86_ADDR_VAR_SYSEXIT 0x2810 #define X86_ADDR_VAR_IDT 0x3800 #define X86_ADDR_VAR_TSS64 0x3a00 #define X86_ADDR_VAR_TSS64_CPL3 0x3c00 #define X86_ADDR_VAR_TSS16 0x3d00 #define X86_ADDR_VAR_TSS16_2 0x3e00 #define X86_ADDR_VAR_TSS16_CPL3 0x3f00 #define X86_ADDR_VAR_TSS32 0x4800 #define X86_ADDR_VAR_TSS32_2 0x4a00 #define X86_ADDR_VAR_TSS32_CPL3 0x4c00 #define X86_ADDR_VAR_TSS32_VM86 0x4e00 #define X86_ADDR_VAR_VMXON_PTR 0x5f00 #define X86_ADDR_VAR_VMCS_PTR 0x5f08 #define X86_ADDR_VAR_VMEXIT_PTR 0x5f10 #define X86_ADDR_VAR_VMWRITE_FLD 0x5f18 #define X86_ADDR_VAR_VMWRITE_VAL 0x5f20 #define X86_ADDR_VAR_VMXON 0x6000 #define X86_ADDR_VAR_VMCS 0x7000 #define X86_ADDR_VAR_VMEXIT_CODE 0x9000 #define X86_ADDR_VAR_USER_CODE 0x9100 #define X86_ADDR_VAR_USER_CODE2 0x9120 #define X86_SYZOS_ADDR_ZERO 0x0 #define X86_SYZOS_ADDR_GDT 0x1000 #define X86_SYZOS_ADDR_PML4 0x2000 #define X86_SYZOS_ADDR_PDP 0x3000 #define X86_SYZOS_ADDR_PT_POOL 0x5000 #define X86_SYZOS_ADDR_VAR_IDT 0x25000 #define X86_SYZOS_ADDR_VAR_TSS 0x26000 #define X86_SYZOS_ADDR_SMRAM 0x30000 #define X86_SYZOS_ADDR_EXIT 0x40000 #define X86_SYZOS_ADDR_UEXIT (X86_SYZOS_ADDR_EXIT + 256) #define X86_SYZOS_ADDR_DIRTY_PAGES 0x41000 #define X86_SYZOS_ADDR_USER_CODE 0x50000 #define SYZOS_ADDR_EXECUTOR_CODE 0x54000 #define X86_SYZOS_ADDR_SCRATCH_CODE 0x58000 #define X86_SYZOS_ADDR_STACK_BOTTOM 0x60000 #define X86_SYZOS_ADDR_STACK0 0x60f80 #define X86_SYZOS_PER_VCPU_REGIONS_BASE 0x70000 #define X86_SYZOS_L1_VCPU_REGION_SIZE 0x40000 #define X86_SYZOS_L1_VCPU_OFFSET_VM_ARCH_SPECIFIC 0x0000 #define X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA 0x1000 #define X86_SYZOS_L2_VM_REGION_SIZE 0x8000 #define X86_SYZOS_L2_VM_OFFSET_VMCS_VMCB 0x0000 #define X86_SYZOS_L2_VM_OFFSET_VM_STACK 0x1000 #define X86_SYZOS_L2_VM_OFFSET_VM_CODE 0x2000 #define X86_SYZOS_L2_VM_OFFSET_VM_PGTABLE 0x3000 #define X86_SYZOS_L2_VM_OFFSET_MSR_BITMAP 0x7000 #define X86_SYZOS_ADDR_UNUSED 0x200000 #define X86_SYZOS_ADDR_IOAPIC 0xfec00000 #define X86_SYZOS_ADDR_VMCS_VMCB(cpu,vm) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA + (vm) * X86_SYZOS_L2_VM_REGION_SIZE + X86_SYZOS_L2_VM_OFFSET_VMCS_VMCB) #define X86_SYZOS_ADDR_VM_CODE(cpu,vm) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA + (vm) * X86_SYZOS_L2_VM_REGION_SIZE + X86_SYZOS_L2_VM_OFFSET_VM_CODE) #define X86_SYZOS_ADDR_VM_STACK(cpu,vm) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA + (vm) * X86_SYZOS_L2_VM_REGION_SIZE + X86_SYZOS_L2_VM_OFFSET_VM_STACK) #define X86_SYZOS_ADDR_VM_PGTABLE(cpu,vm) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA + (vm) * X86_SYZOS_L2_VM_REGION_SIZE + X86_SYZOS_L2_VM_OFFSET_VM_PGTABLE) #define X86_SYZOS_ADDR_MSR_BITMAP(cpu,vm) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_L2_VMS_AREA + (vm) * X86_SYZOS_L2_VM_REGION_SIZE + X86_SYZOS_L2_VM_OFFSET_MSR_BITMAP) #define X86_SYZOS_ADDR_VM_ARCH_SPECIFIC(cpu) (X86_SYZOS_PER_VCPU_REGIONS_BASE + (cpu) * X86_SYZOS_L1_VCPU_REGION_SIZE + X86_SYZOS_L1_VCPU_OFFSET_VM_ARCH_SPECIFIC) #define X86_SYZOS_SEL_CODE 0x8 #define X86_SYZOS_SEL_DATA 0x10 #define X86_SYZOS_SEL_TSS64 0x18 #define X86_CR0_PE 1ULL #define X86_CR0_MP (1ULL << 1) #define X86_CR0_EM (1ULL << 2) #define X86_CR0_TS (1ULL << 3) #define X86_CR0_ET (1ULL << 4) #define X86_CR0_NE (1ULL << 5) #define X86_CR0_WP (1ULL << 16) #define X86_CR0_AM (1ULL << 18) #define X86_CR0_NW (1ULL << 29) #define X86_CR0_CD (1ULL << 30) #define X86_CR0_PG (1ULL << 31) #define X86_CR4_VME 1ULL #define X86_CR4_PVI (1ULL << 1) #define X86_CR4_TSD (1ULL << 2) #define X86_CR4_DE (1ULL << 3) #define X86_CR4_PSE (1ULL << 4) #define X86_CR4_PAE (1ULL << 5) #define X86_CR4_MCE (1ULL << 6) #define X86_CR4_PGE (1ULL << 7) #define X86_CR4_PCE (1ULL << 8) #define X86_CR4_OSFXSR (1ULL << 8) #define X86_CR4_OSXMMEXCPT (1ULL << 10) #define X86_CR4_UMIP (1ULL << 11) #define X86_CR4_VMXE (1ULL << 13) #define X86_CR4_SMXE (1ULL << 14) #define X86_CR4_FSGSBASE (1ULL << 16) #define X86_CR4_PCIDE (1ULL << 17) #define X86_CR4_OSXSAVE (1ULL << 18) #define X86_CR4_SMEP (1ULL << 20) #define X86_CR4_SMAP (1ULL << 21) #define X86_CR4_PKE (1ULL << 22) #define X86_EFER_SCE 1ULL #define X86_EFER_LME (1ULL << 8) #define X86_EFER_LMA (1ULL << 10) #define X86_EFER_NXE (1ULL << 11) #define X86_EFER_SVME (1ULL << 12) #define X86_EFER_LMSLE (1ULL << 13) #define X86_EFER_FFXSR (1ULL << 14) #define X86_EFER_TCE (1ULL << 15) #define X86_PDE32_PRESENT 1UL #define X86_PDE32_RW (1UL << 1) #define X86_PDE32_USER (1UL << 2) #define X86_PDE32_PS (1UL << 7) #define X86_PDE64_PRESENT 1 #define X86_PDE64_RW (1ULL << 1) #define X86_PDE64_USER (1ULL << 2) #define X86_PDE64_ACCESSED (1ULL << 5) #define X86_PDE64_DIRTY (1ULL << 6) #define X86_PDE64_PS (1ULL << 7) #define X86_PDE64_G (1ULL << 8) #define EPT_MEMTYPE_WB (6ULL << 3) #define EPT_ACCESSED (1ULL << 8) #define EPT_DIRTY (1ULL << 9) #define X86_SEL_LDT (1 << 3) #define X86_SEL_CS16 (2 << 3) #define X86_SEL_DS16 (3 << 3) #define X86_SEL_CS16_CPL3 ((4 << 3) + 3) #define X86_SEL_DS16_CPL3 ((5 << 3) + 3) #define X86_SEL_CS32 (6 << 3) #define X86_SEL_DS32 (7 << 3) #define X86_SEL_CS32_CPL3 ((8 << 3) + 3) #define X86_SEL_DS32_CPL3 ((9 << 3) + 3) #define X86_SEL_CS64 (10 << 3) #define X86_SEL_DS64 (11 << 3) #define X86_SEL_CS64_CPL3 ((12 << 3) + 3) #define X86_SEL_DS64_CPL3 ((13 << 3) + 3) #define X86_SEL_CGATE16 (14 << 3) #define X86_SEL_TGATE16 (15 << 3) #define X86_SEL_CGATE32 (16 << 3) #define X86_SEL_TGATE32 (17 << 3) #define X86_SEL_CGATE64 (18 << 3) #define X86_SEL_CGATE64_HI (19 << 3) #define X86_SEL_TSS16 (20 << 3) #define X86_SEL_TSS16_2 (21 << 3) #define X86_SEL_TSS16_CPL3 ((22 << 3) + 3) #define X86_SEL_TSS32 (23 << 3) #define X86_SEL_TSS32_2 (24 << 3) #define X86_SEL_TSS32_CPL3 ((25 << 3) + 3) #define X86_SEL_TSS32_VM86 (26 << 3) #define X86_SEL_TSS64 (27 << 3) #define X86_SEL_TSS64_HI (28 << 3) #define X86_SEL_TSS64_CPL3 ((29 << 3) + 3) #define X86_SEL_TSS64_CPL3_HI (30 << 3) #define X86_MSR_IA32_FEATURE_CONTROL 0x3a #define X86_MSR_IA32_VMX_BASIC 0x480 #define X86_MSR_IA32_SMBASE 0x9e #define X86_MSR_IA32_SYSENTER_CS 0x174 #define X86_MSR_IA32_SYSENTER_ESP 0x175 #define X86_MSR_IA32_SYSENTER_EIP 0x176 #define X86_MSR_IA32_CR_PAT 0x277 #define X86_MSR_CORE_PERF_GLOBAL_CTRL 0x38f #define X86_MSR_IA32_VMX_TRUE_PINBASED_CTLS 0x48d #define X86_MSR_IA32_VMX_TRUE_PROCBASED_CTLS 0x48e #define X86_MSR_IA32_VMX_TRUE_EXIT_CTLS 0x48f #define X86_MSR_IA32_VMX_TRUE_ENTRY_CTLS 0x490 #define X86_MSR_IA32_EFER 0xc0000080 #define X86_MSR_IA32_STAR 0xC0000081 #define X86_MSR_IA32_LSTAR 0xC0000082 #define X86_MSR_FS_BASE 0xc0000100 #define X86_MSR_GS_BASE 0xc0000101 #define X86_MSR_VM_HSAVE_PA 0xc0010117 #define X86_MSR_IA32_VMX_PROCBASED_CTLS2 0x48B #define RFLAGS_1_BIT (1ULL << 1) #define CPU_BASED_HLT_EXITING (1U << 7) #define CPU_BASED_RDTSC_EXITING (1U << 12) #define AR_TSS_AVAILABLE 0x0089 #define SVM_ATTR_LDTR_UNUSABLE 0x0000 #define VMX_AR_TSS_BUSY 0x008b #define VMX_AR_TSS_AVAILABLE 0x0089 #define VMX_AR_LDTR_UNUSABLE 0x10000 #define VM_ENTRY_IA32E_MODE (1U << 9) #define SECONDARY_EXEC_ENABLE_EPT (1U << 1) #define SECONDARY_EXEC_ENABLE_RDTSCP (1U << 3) #define VM_EXIT_HOST_ADDR_SPACE_SIZE (1U << 9) #define CPU_BASED_ACTIVATE_SECONDARY_CONTROLS (1U << 31) #define VMX_ACCESS_RIGHTS_P (1 << 7) #define VMX_ACCESS_RIGHTS_S (1 << 4) #define VMX_ACCESS_RIGHTS_TYPE_A (1 << 0) #define VMX_ACCESS_RIGHTS_TYPE_RW (1 << 1) #define VMX_ACCESS_RIGHTS_TYPE_E (1 << 3) #define VMX_ACCESS_RIGHTS_G (1 << 15) #define VMX_ACCESS_RIGHTS_DB (1 << 14) #define VMX_ACCESS_RIGHTS_L (1 << 13) #define VMX_AR_64BIT_DATA_STACK (VMX_ACCESS_RIGHTS_P | VMX_ACCESS_RIGHTS_S | VMX_ACCESS_RIGHTS_TYPE_RW | VMX_ACCESS_RIGHTS_TYPE_A | VMX_ACCESS_RIGHTS_G | VMX_ACCESS_RIGHTS_DB) #define VMX_AR_64BIT_CODE (VMX_ACCESS_RIGHTS_P | VMX_ACCESS_RIGHTS_S | VMX_ACCESS_RIGHTS_TYPE_E | VMX_ACCESS_RIGHTS_TYPE_RW | VMX_ACCESS_RIGHTS_TYPE_A | VMX_ACCESS_RIGHTS_G | VMX_ACCESS_RIGHTS_L) #define VMCS_VIRTUAL_PROCESSOR_ID 0x00000000 #define VMCS_POSTED_INTR_NV 0x00000002 #define VMCS_MSR_BITMAP 0x00002004 #define VMCS_VMREAD_BITMAP 0x00002006 #define VMCS_VMWRITE_BITMAP 0x00002008 #define VMCS_EPT_POINTER 0x0000201a #define VMCS_LINK_POINTER 0x00002800 #define VMCS_PIN_BASED_VM_EXEC_CONTROL 0x00004000 #define VMCS_CPU_BASED_VM_EXEC_CONTROL 0x00004002 #define VMCS_EXCEPTION_BITMAP 0x00004004 #define VMCS_PAGE_FAULT_ERROR_CODE_MASK 0x00004006 #define VMCS_PAGE_FAULT_ERROR_CODE_MATCH 0x00004008 #define VMCS_CR3_TARGET_COUNT 0x0000400a #define VMCS_VM_EXIT_CONTROLS 0x0000400c #define VMCS_VM_EXIT_MSR_STORE_COUNT 0x0000400e #define VMCS_VM_EXIT_MSR_LOAD_COUNT 0x00004010 #define VMCS_VM_ENTRY_CONTROLS 0x00004012 #define VMCS_VM_ENTRY_MSR_LOAD_COUNT 0x00004014 #define VMCS_VM_ENTRY_INTR_INFO_FIELD 0x00004016 #define VMCS_TPR_THRESHOLD 0x0000401c #define VMCS_SECONDARY_VM_EXEC_CONTROL 0x0000401e #define VMCS_VM_INSTRUCTION_ERROR 0x00004400 #define VMCS_VM_EXIT_REASON 0x00004402 #define VMCS_VMX_PREEMPTION_TIMER_VALUE 0x0000482e #define VMCS_CR0_GUEST_HOST_MASK 0x00006000 #define VMCS_CR4_GUEST_HOST_MASK 0x00006002 #define VMCS_CR0_READ_SHADOW 0x00006004 #define VMCS_CR4_READ_SHADOW 0x00006006 #define VMCS_HOST_ES_SELECTOR 0x00000c00 #define VMCS_HOST_CS_SELECTOR 0x00000c02 #define VMCS_HOST_SS_SELECTOR 0x00000c04 #define VMCS_HOST_DS_SELECTOR 0x00000c06 #define VMCS_HOST_FS_SELECTOR 0x00000c08 #define VMCS_HOST_GS_SELECTOR 0x00000c0a #define VMCS_HOST_TR_SELECTOR 0x00000c0c #define VMCS_HOST_IA32_PAT 0x00002c00 #define VMCS_HOST_IA32_EFER 0x00002c02 #define VMCS_HOST_IA32_PERF_GLOBAL_CTRL 0x00002c04 #define VMCS_HOST_IA32_SYSENTER_CS 0x00004c00 #define VMCS_HOST_CR0 0x00006c00 #define VMCS_HOST_CR3 0x00006c02 #define VMCS_HOST_CR4 0x00006c04 #define VMCS_HOST_FS_BASE 0x00006c06 #define VMCS_HOST_GS_BASE 0x00006c08 #define VMCS_HOST_TR_BASE 0x00006c0a #define VMCS_HOST_GDTR_BASE 0x00006c0c #define VMCS_HOST_IDTR_BASE 0x00006c0e #define VMCS_HOST_IA32_SYSENTER_ESP 0x00006c10 #define VMCS_HOST_IA32_SYSENTER_EIP 0x00006c12 #define VMCS_HOST_RSP 0x00006c14 #define VMCS_HOST_RIP 0x00006c16 #define VMCS_GUEST_INTR_STATUS 0x00000810 #define VMCS_GUEST_PML_INDEX 0x00000812 #define VMCS_GUEST_IA32_DEBUGCTL 0x00002802 #define VMCS_GUEST_IA32_PAT 0x00002804 #define VMCS_GUEST_IA32_EFER 0x00002806 #define VMCS_GUEST_IA32_PERF_GLOBAL_CTRL 0x00002808 #define VMCS_GUEST_ES_SELECTOR 0x00000800 #define VMCS_GUEST_CS_SELECTOR 0x00000802 #define VMCS_GUEST_SS_SELECTOR 0x00000804 #define VMCS_GUEST_DS_SELECTOR 0x00000806 #define VMCS_GUEST_FS_SELECTOR 0x00000808 #define VMCS_GUEST_GS_SELECTOR 0x0000080a #define VMCS_GUEST_LDTR_SELECTOR 0x0000080c #define VMCS_GUEST_TR_SELECTOR 0x0000080e #define VMCS_GUEST_ES_LIMIT 0x00004800 #define VMCS_GUEST_CS_LIMIT 0x00004802 #define VMCS_GUEST_SS_LIMIT 0x00004804 #define VMCS_GUEST_DS_LIMIT 0x00004806 #define VMCS_GUEST_FS_LIMIT 0x00004808 #define VMCS_GUEST_GS_LIMIT 0x0000480a #define VMCS_GUEST_LDTR_LIMIT 0x0000480c #define VMCS_GUEST_TR_LIMIT 0x0000480e #define VMCS_GUEST_GDTR_LIMIT 0x00004810 #define VMCS_GUEST_IDTR_LIMIT 0x00004812 #define VMCS_GUEST_ES_ACCESS_RIGHTS 0x00004814 #define VMCS_GUEST_CS_ACCESS_RIGHTS 0x00004816 #define VMCS_GUEST_SS_ACCESS_RIGHTS 0x00004818 #define VMCS_GUEST_DS_ACCESS_RIGHTS 0x0000481a #define VMCS_GUEST_FS_ACCESS_RIGHTS 0x0000481c #define VMCS_GUEST_GS_ACCESS_RIGHTS 0x0000481e #define VMCS_GUEST_LDTR_ACCESS_RIGHTS 0x00004820 #define VMCS_GUEST_TR_ACCESS_RIGHTS 0x00004822 #define VMCS_GUEST_ACTIVITY_STATE 0x00004824 #define VMCS_GUEST_INTERRUPTIBILITY_INFO 0x00004826 #define VMCS_GUEST_SYSENTER_CS 0x0000482a #define VMCS_GUEST_CR0 0x00006800 #define VMCS_GUEST_CR3 0x00006802 #define VMCS_GUEST_CR4 0x00006804 #define VMCS_GUEST_ES_BASE 0x00006806 #define VMCS_GUEST_CS_BASE 0x00006808 #define VMCS_GUEST_SS_BASE 0x0000680a #define VMCS_GUEST_DS_BASE 0x0000680c #define VMCS_GUEST_FS_BASE 0x0000680e #define VMCS_GUEST_GS_BASE 0x00006810 #define VMCS_GUEST_LDTR_BASE 0x00006812 #define VMCS_GUEST_TR_BASE 0x00006814 #define VMCS_GUEST_GDTR_BASE 0x00006816 #define VMCS_GUEST_IDTR_BASE 0x00006818 #define VMCS_GUEST_DR7 0x0000681a #define VMCS_GUEST_RSP 0x0000681c #define VMCS_GUEST_RIP 0x0000681e #define VMCS_GUEST_RFLAGS 0x00006820 #define VMCS_GUEST_PENDING_DBG_EXCEPTIONS 0x00006822 #define VMCS_GUEST_SYSENTER_ESP 0x00006824 #define VMCS_GUEST_SYSENTER_EIP 0x00006826 #define VMCB_CTRL_INTERCEPT_VEC3 0x0c #define VMCB_CTRL_INTERCEPT_VEC3_ALL (0xffffffff) #define VMCB_CTRL_INTERCEPT_VEC4 0x10 #define VMCB_CTRL_INTERCEPT_VEC4_ALL (0x3ff) #define VMCB_CTRL_ASID 0x058 #define VMCB_EXIT_CODE 0x070 #define VMCB_CTRL_NP_ENABLE 0x090 #define VMCB_CTRL_NPT_ENABLE_BIT 0 #define VMCB_CTRL_N_CR3 0x0b0 #define VMCB_GUEST_ES_SEL 0x400 #define VMCB_GUEST_ES_ATTR 0x402 #define VMCB_GUEST_ES_LIM 0x404 #define VMCB_GUEST_ES_BASE 0x408 #define VMCB_GUEST_CS_SEL 0x410 #define VMCB_GUEST_CS_ATTR 0x412 #define VMCB_GUEST_CS_LIM 0x414 #define VMCB_GUEST_CS_BASE 0x418 #define VMCB_GUEST_SS_SEL 0x420 #define VMCB_GUEST_SS_ATTR 0x422 #define VMCB_GUEST_SS_LIM 0x424 #define VMCB_GUEST_SS_BASE 0x428 #define VMCB_GUEST_DS_SEL 0x430 #define VMCB_GUEST_DS_ATTR 0x432 #define VMCB_GUEST_DS_LIM 0x434 #define VMCB_GUEST_DS_BASE 0x438 #define VMCB_GUEST_FS_SEL 0x440 #define VMCB_GUEST_FS_ATTR 0x442 #define VMCB_GUEST_FS_LIM 0x444 #define VMCB_GUEST_FS_BASE 0x448 #define VMCB_GUEST_GS_SEL 0x450 #define VMCB_GUEST_GS_ATTR 0x452 #define VMCB_GUEST_GS_LIM 0x454 #define VMCB_GUEST_GS_BASE 0x458 #define VMCB_GUEST_IDTR_SEL 0x480 #define VMCB_GUEST_IDTR_ATTR 0x482 #define VMCB_GUEST_IDTR_LIM 0x484 #define VMCB_GUEST_IDTR_BASE 0x488 #define VMCB_GUEST_GDTR_SEL 0x460 #define VMCB_GUEST_GDTR_ATTR 0x462 #define VMCB_GUEST_GDTR_LIM 0x464 #define VMCB_GUEST_GDTR_BASE 0x468 #define VMCB_GUEST_LDTR_SEL 0x470 #define VMCB_GUEST_LDTR_ATTR 0x472 #define VMCB_GUEST_LDTR_LIM 0x474 #define VMCB_GUEST_LDTR_BASE 0x478 #define VMCB_GUEST_TR_SEL 0x490 #define VMCB_GUEST_TR_ATTR 0x492 #define VMCB_GUEST_TR_LIM 0x494 #define VMCB_GUEST_TR_BASE 0x498 #define VMCB_GUEST_EFER 0x4d0 #define VMCB_GUEST_CR4 0x548 #define VMCB_GUEST_CR3 0x550 #define VMCB_GUEST_CR0 0x558 #define VMCB_GUEST_DR7 0x560 #define VMCB_GUEST_DR6 0x568 #define VMCB_GUEST_RFLAGS 0x570 #define VMCB_GUEST_RIP 0x578 #define VMCB_GUEST_RSP 0x5d8 #define VMCB_GUEST_PAT 0x668 #define VMCB_GUEST_DEBUGCTL 0x670 #define SVM_ATTR_G (1 << 15) #define SVM_ATTR_DB (1 << 14) #define SVM_ATTR_L (1 << 13) #define SVM_ATTR_P (1 << 7) #define SVM_ATTR_S (1 << 4) #define SVM_ATTR_TYPE_A (1 << 0) #define SVM_ATTR_TYPE_RW (1 << 1) #define SVM_ATTR_TYPE_E (1 << 3) #define SVM_ATTR_64BIT_CODE (SVM_ATTR_P | SVM_ATTR_S | SVM_ATTR_TYPE_E | SVM_ATTR_TYPE_RW | SVM_ATTR_TYPE_A | SVM_ATTR_L | SVM_ATTR_G) #define SVM_ATTR_64BIT_DATA (SVM_ATTR_P | SVM_ATTR_S | SVM_ATTR_TYPE_RW | SVM_ATTR_TYPE_A | SVM_ATTR_DB | SVM_ATTR_G) #define X86_NEXT_INSN $0xbadc0de #define X86_PREFIX_SIZE 0xba1d #define KVM_MAX_VCPU 4 #define KVM_PAGE_SIZE (1 << 12) #define KVM_GUEST_PAGES 1024 #define KVM_GUEST_MEM_SIZE (KVM_GUEST_PAGES * KVM_PAGE_SIZE) #define SZ_4K 0x00001000 #define SZ_64K 0x00010000 #define GENMASK_ULL(h,l) (((~0ULL) - (1ULL << (l)) + 1ULL) & (~0ULL >> (63 - (h)))) extern char* __start_guest; static inline uintptr_t executor_fn_guest_addr(void* fn) { volatile uintptr_t start = (uintptr_t)&__start_guest; volatile uintptr_t offset = SYZOS_ADDR_EXECUTOR_CODE; return (uintptr_t)fn - start + offset; } typedef enum { SYZOS_API_UEXIT = 0, SYZOS_API_CODE = 10, SYZOS_API_CPUID = 100, SYZOS_API_WRMSR = 101, SYZOS_API_RDMSR = 102, SYZOS_API_WR_CRN = 103, SYZOS_API_WR_DRN = 104, SYZOS_API_IN_DX = 105, SYZOS_API_OUT_DX = 106, SYZOS_API_SET_IRQ_HANDLER = 200, SYZOS_API_ENABLE_NESTED = 300, SYZOS_API_NESTED_CREATE_VM = 301, SYZOS_API_NESTED_LOAD_CODE = 302, SYZOS_API_NESTED_VMLAUNCH = 303, SYZOS_API_NESTED_VMRESUME = 304, SYZOS_API_NESTED_INTEL_VMWRITE_MASK = 340, SYZOS_API_NESTED_AMD_VMCB_WRITE_MASK = 380, SYZOS_API_NESTED_AMD_INVLPGA = 381, SYZOS_API_NESTED_AMD_STGI = 382, SYZOS_API_NESTED_AMD_CLGI = 383, SYZOS_API_NESTED_AMD_INJECT_EVENT = 384, SYZOS_API_NESTED_AMD_SET_INTERCEPT = 385, SYZOS_API_NESTED_AMD_VMLOAD = 386, SYZOS_API_NESTED_AMD_VMSAVE = 387, SYZOS_API_STOP, } syzos_api_id; struct api_call_header { uint64_t call; uint64_t size; }; struct api_call_uexit { struct api_call_header header; uint64_t exit_code; }; struct api_call_code { struct api_call_header header; uint8_t insns[]; }; struct api_call_nested_load_code { struct api_call_header header; uint64_t vm_id; uint8_t insns[]; }; struct api_call_cpuid { struct api_call_header header; uint32_t eax; uint32_t ecx; }; struct api_call_1 { struct api_call_header header; uint64_t arg; }; struct api_call_2 { struct api_call_header header; uint64_t args[2]; }; struct api_call_3 { struct api_call_header header; uint64_t args[3]; }; struct api_call_5 { struct api_call_header header; uint64_t args[5]; }; struct l2_guest_regs { uint64_t rax, rbx, rcx, rdx, rsi, rdi, rbp; uint64_t r8, r9, r10, r11, r12, r13, r14, r15; }; GUEST_CODE static void guest_uexit(uint64_t exit_code); GUEST_CODE static void nested_vm_exit_handler_intel(uint64_t exit_reason, struct l2_guest_regs* regs); GUEST_CODE static void guest_execute_code(uint8_t* insns, uint64_t size); GUEST_CODE static void guest_handle_cpuid(uint32_t eax, uint32_t ecx); GUEST_CODE static void guest_handle_wrmsr(uint64_t reg, uint64_t val); GUEST_CODE static void guest_handle_rdmsr(uint64_t reg); GUEST_CODE static void guest_handle_wr_crn(struct api_call_2* cmd); GUEST_CODE static void guest_handle_wr_drn(struct api_call_2* cmd); GUEST_CODE static void guest_handle_in_dx(struct api_call_2* cmd); GUEST_CODE static void guest_handle_out_dx(struct api_call_3* cmd); GUEST_CODE static void guest_handle_set_irq_handler(struct api_call_2* cmd); GUEST_CODE static void guest_handle_enable_nested(struct api_call_1* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_create_vm(struct api_call_1* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_load_code(struct api_call_nested_load_code* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_vmlaunch(struct api_call_1* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_vmresume(struct api_call_1* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_intel_vmwrite_mask(struct api_call_5* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_vmcb_write_mask(struct api_call_5* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_invlpga(struct api_call_2* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_stgi(); GUEST_CODE static void guest_handle_nested_amd_clgi(); GUEST_CODE static void guest_handle_nested_amd_inject_event(struct api_call_5* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_set_intercept(struct api_call_5* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_vmload(struct api_call_1* cmd, uint64_t cpu_id); GUEST_CODE static void guest_handle_nested_amd_vmsave(struct api_call_1* cmd, uint64_t cpu_id); typedef enum { UEXIT_END = (uint64_t)-1, UEXIT_IRQ = (uint64_t)-2, UEXIT_ASSERT = (uint64_t)-3, } uexit_code; typedef enum { CPU_VENDOR_INTEL, CPU_VENDOR_AMD, } cpu_vendor_id; __attribute__((naked)) GUEST_CODE static void dummy_null_handler() { asm("iretq"); } __attribute__((naked)) GUEST_CODE static void uexit_irq_handler() { asm volatile(R"( movq $-2, %rdi call guest_uexit iretq )"); } __attribute__((used)) GUEST_CODE static void guest_main(uint64_t size, uint64_t cpu) { uint64_t addr = X86_SYZOS_ADDR_USER_CODE + cpu * KVM_PAGE_SIZE; while (size >= sizeof(struct api_call_header)) { struct api_call_header* cmd = (struct api_call_header*)addr; if (cmd->call >= SYZOS_API_STOP) return; if (cmd->size > size) return; volatile uint64_t call = cmd->call; if (call == SYZOS_API_UEXIT) { struct api_call_uexit* ucmd = (struct api_call_uexit*)cmd; guest_uexit(ucmd->exit_code); } else if (call == SYZOS_API_CODE) { struct api_call_code* ccmd = (struct api_call_code*)cmd; guest_execute_code(ccmd->insns, cmd->size - sizeof(struct api_call_header)); } else if (call == SYZOS_API_CPUID) { struct api_call_cpuid* ccmd = (struct api_call_cpuid*)cmd; guest_handle_cpuid(ccmd->eax, ccmd->ecx); } else if (call == SYZOS_API_WRMSR) { struct api_call_2* ccmd = (struct api_call_2*)cmd; guest_handle_wrmsr(ccmd->args[0], ccmd->args[1]); } else if (call == SYZOS_API_RDMSR) { struct api_call_1* ccmd = (struct api_call_1*)cmd; guest_handle_rdmsr(ccmd->arg); } else if (call == SYZOS_API_WR_CRN) { guest_handle_wr_crn((struct api_call_2*)cmd); } else if (call == SYZOS_API_WR_DRN) { guest_handle_wr_drn((struct api_call_2*)cmd); } else if (call == SYZOS_API_IN_DX) { guest_handle_in_dx((struct api_call_2*)cmd); } else if (call == SYZOS_API_OUT_DX) { guest_handle_out_dx((struct api_call_3*)cmd); } else if (call == SYZOS_API_SET_IRQ_HANDLER) { guest_handle_set_irq_handler((struct api_call_2*)cmd); } else if (call == SYZOS_API_ENABLE_NESTED) { guest_handle_enable_nested((struct api_call_1*)cmd, cpu); } else if (call == SYZOS_API_NESTED_CREATE_VM) { guest_handle_nested_create_vm((struct api_call_1*)cmd, cpu); } else if (call == SYZOS_API_NESTED_LOAD_CODE) { guest_handle_nested_load_code((struct api_call_nested_load_code*)cmd, cpu); } else if (call == SYZOS_API_NESTED_VMLAUNCH) { guest_handle_nested_vmlaunch((struct api_call_1*)cmd, cpu); } else if (call == SYZOS_API_NESTED_VMRESUME) { guest_handle_nested_vmresume((struct api_call_1*)cmd, cpu); } else if (call == SYZOS_API_NESTED_INTEL_VMWRITE_MASK) { guest_handle_nested_intel_vmwrite_mask((struct api_call_5*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_VMCB_WRITE_MASK) { guest_handle_nested_amd_vmcb_write_mask((struct api_call_5*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_INVLPGA) { guest_handle_nested_amd_invlpga((struct api_call_2*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_STGI) { guest_handle_nested_amd_stgi(); } else if (call == SYZOS_API_NESTED_AMD_CLGI) { guest_handle_nested_amd_clgi(); } else if (call == SYZOS_API_NESTED_AMD_INJECT_EVENT) { guest_handle_nested_amd_inject_event((struct api_call_5*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_SET_INTERCEPT) { guest_handle_nested_amd_set_intercept((struct api_call_5*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_VMLOAD) { guest_handle_nested_amd_vmload((struct api_call_1*)cmd, cpu); } else if (call == SYZOS_API_NESTED_AMD_VMSAVE) { guest_handle_nested_amd_vmsave((struct api_call_1*)cmd, cpu); } addr += cmd->size; size -= cmd->size; }; guest_uexit((uint64_t)-1); } GUEST_CODE static noinline void guest_execute_code(uint8_t* insns, uint64_t size) { volatile void (*fn)() = (volatile void (*)())insns; fn(); } __attribute__((used)) GUEST_CODE static noinline void guest_uexit(uint64_t exit_code) { volatile uint64_t* ptr = (volatile uint64_t*)X86_SYZOS_ADDR_UEXIT; *ptr = exit_code; } GUEST_CODE static noinline void guest_handle_cpuid(uint32_t eax, uint32_t ecx) { asm volatile( "cpuid\n" : : "a"(eax), "c"(ecx) : "rbx", "rdx"); } GUEST_CODE static noinline void wrmsr(uint64_t reg, uint64_t val) { asm volatile( "wrmsr" : : "c"(reg), "a"((uint32_t)val), "d"((uint32_t)(val >> 32)) : "memory"); } GUEST_CODE static noinline void guest_handle_wrmsr(uint64_t reg, uint64_t val) { wrmsr(reg, val); } GUEST_CODE static noinline uint64_t rdmsr(uint64_t msr_id) { uint32_t low = 0, high = 0; asm volatile("rdmsr" : "=a"(low), "=d"(high) : "c"(msr_id)); return ((uint64_t)high << 32) | low; } GUEST_CODE static noinline void guest_handle_rdmsr(uint64_t reg) { (void)rdmsr(reg); } GUEST_CODE static noinline void guest_handle_wr_crn(struct api_call_2* cmd) { uint64_t value = cmd->args[1]; volatile uint64_t reg = cmd->args[0]; if (reg == 0) { asm volatile("movq %0, %%cr0" ::"r"(value) : "memory"); return; } if (reg == 2) { asm volatile("movq %0, %%cr2" ::"r"(value) : "memory"); return; } if (reg == 3) { asm volatile("movq %0, %%cr3" ::"r"(value) : "memory"); return; } if (reg == 4) { asm volatile("movq %0, %%cr4" ::"r"(value) : "memory"); return; } if (reg == 8) { asm volatile("movq %0, %%cr8" ::"r"(value) : "memory"); return; } } GUEST_CODE static noinline void guest_handle_wr_drn(struct api_call_2* cmd) { uint64_t value = cmd->args[1]; volatile uint64_t reg = cmd->args[0]; if (reg == 0) { asm volatile("movq %0, %%dr0" ::"r"(value) : "memory"); return; } if (reg == 1) { asm volatile("movq %0, %%dr1" ::"r"(value) : "memory"); return; } if (reg == 2) { asm volatile("movq %0, %%dr2" ::"r"(value) : "memory"); return; } if (reg == 3) { asm volatile("movq %0, %%dr3" ::"r"(value) : "memory"); return; } if (reg == 4) { asm volatile("movq %0, %%dr4" ::"r"(value) : "memory"); return; } if (reg == 5) { asm volatile("movq %0, %%dr5" ::"r"(value) : "memory"); return; } if (reg == 6) { asm volatile("movq %0, %%dr6" ::"r"(value) : "memory"); return; } if (reg == 7) { asm volatile("movq %0, %%dr7" ::"r"(value) : "memory"); return; } } GUEST_CODE static noinline void guest_handle_in_dx(struct api_call_2* cmd) { uint16_t port = cmd->args[0]; volatile int size = cmd->args[1]; if (size == 1) { uint8_t unused; asm volatile("inb %1, %0" : "=a"(unused) : "d"(port)); return; } if (size == 2) { uint16_t unused; asm volatile("inw %1, %0" : "=a"(unused) : "d"(port)); return; } if (size == 4) { uint32_t unused; asm volatile("inl %1, %0" : "=a"(unused) : "d"(port)); } return; } GUEST_CODE static noinline void guest_handle_out_dx(struct api_call_3* cmd) { uint16_t port = cmd->args[0]; volatile int size = cmd->args[1]; uint32_t data = (uint32_t)cmd->args[2]; if (size == 1) { asm volatile("outb %b0, %w1" ::"a"(data), "d"(port)); return; } if (size == 2) { asm volatile("outw %w0, %w1" ::"a"(data), "d"(port)); return; } if (size == 4) { asm volatile("outl %k0, %w1" ::"a"(data), "d"(port)); return; } } struct idt_entry_64 { uint16_t offset_low; uint16_t selector; uint8_t ist; uint8_t type_attr; uint16_t offset_mid; uint32_t offset_high; uint32_t reserved; } __attribute__((packed)); GUEST_CODE static void set_idt_gate(uint8_t vector, uint64_t handler) { volatile struct idt_entry_64* idt = (volatile struct idt_entry_64*)(X86_SYZOS_ADDR_VAR_IDT); volatile struct idt_entry_64* idt_entry = &idt[vector]; idt_entry->offset_low = (uint16_t)handler; idt_entry->offset_mid = (uint16_t)(handler >> 16); idt_entry->offset_high = (uint32_t)(handler >> 32); idt_entry->selector = X86_SYZOS_SEL_CODE; idt_entry->type_attr = 0x8E; idt_entry->ist = 0; idt_entry->reserved = 0; } GUEST_CODE static noinline void guest_handle_set_irq_handler(struct api_call_2* cmd) { uint8_t vector = (uint8_t)cmd->args[0]; uint64_t type = cmd->args[1]; volatile uint64_t handler_addr = 0; if (type == 1) handler_addr = executor_fn_guest_addr(dummy_null_handler); else if (type == 2) handler_addr = executor_fn_guest_addr(uexit_irq_handler); set_idt_gate(vector, handler_addr); } GUEST_CODE static cpu_vendor_id get_cpu_vendor(void) { uint32_t ebx, eax = 0; asm volatile( "cpuid" : "+a"(eax), "=b"(ebx) : : "ecx", "edx"); if (ebx == 0x756e6547) { return CPU_VENDOR_INTEL; } else if (ebx == 0x68747541) { return CPU_VENDOR_AMD; } else { guest_uexit(UEXIT_ASSERT); return CPU_VENDOR_INTEL; } } GUEST_CODE static inline uint64_t read_cr0(void) { uint64_t val; asm volatile("mov %%cr0, %0" : "=r"(val)); return val; } GUEST_CODE static inline uint64_t read_cr3(void) { uint64_t val; asm volatile("mov %%cr3, %0" : "=r"(val)); return val; } GUEST_CODE static inline uint64_t read_cr4(void) { uint64_t val; asm volatile("mov %%cr4, %0" : "=r"(val)); return val; } GUEST_CODE static inline void write_cr4(uint64_t val) { asm volatile("mov %0, %%cr4" : : "r"(val)); } GUEST_CODE static noinline void vmwrite(uint64_t field, uint64_t value) { uint8_t error = 0; asm volatile("vmwrite %%rax, %%rbx; setna %0" : "=q"(error) : "a"(value), "b"(field) : "cc", "memory"); if (error) guest_uexit(UEXIT_ASSERT); } GUEST_CODE static noinline uint64_t vmread(uint64_t field) { uint64_t value; asm volatile("vmread %%rbx, %%rax" : "=a"(value) : "b"(field) : "cc"); return value; } GUEST_CODE static inline void nested_vmptrld(uint64_t cpu_id, uint64_t vm_id) { uint64_t vmcs_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint8_t error = 0; asm volatile("vmptrld %1; setna %0" : "=q"(error) : "m"(vmcs_addr) : "memory", "cc"); if (error) guest_uexit(0xE2BAD2); } GUEST_CODE static noinline void vmcb_write16(uint64_t vmcb, uint16_t offset, uint16_t val) { *((volatile uint16_t*)(vmcb + offset)) = val; } GUEST_CODE static noinline void vmcb_write32(uint64_t vmcb, uint16_t offset, uint32_t val) { *((volatile uint32_t*)(vmcb + offset)) = val; } GUEST_CODE static noinline uint32_t vmcb_read32(uint64_t vmcb, uint16_t offset) { return *((volatile uint32_t*)(vmcb + offset)); } GUEST_CODE static noinline void vmcb_write64(uint64_t vmcb, uint16_t offset, uint64_t val) { *((volatile uint64_t*)(vmcb + offset)) = val; } GUEST_CODE static noinline uint64_t vmcb_read64(volatile uint8_t* vmcb, uint16_t offset) { return *((volatile uint64_t*)(vmcb + offset)); } GUEST_CODE static void guest_memset(void* s, uint8_t c, int size) { volatile uint8_t* p = (volatile uint8_t*)s; for (int i = 0; i < size; i++) p[i] = c; } GUEST_CODE static void guest_memcpy(void* dst, void* src, int size) { volatile uint8_t* d = (volatile uint8_t*)dst; volatile uint8_t* s = (volatile uint8_t*)src; for (int i = 0; i < size; i++) d[i] = s[i]; } GUEST_CODE static noinline void nested_enable_vmx_intel(uint64_t cpu_id) { uint64_t vmxon_addr = X86_SYZOS_ADDR_VM_ARCH_SPECIFIC(cpu_id); uint64_t cr4 = read_cr4(); cr4 |= X86_CR4_VMXE; write_cr4(cr4); uint64_t feature_control = rdmsr(X86_MSR_IA32_FEATURE_CONTROL); if ((feature_control & 1) == 0) { feature_control |= 0b101; asm volatile("wrmsr" : : "d"(0x0), "c"(X86_MSR_IA32_FEATURE_CONTROL), "A"(feature_control)); } *(uint32_t*)vmxon_addr = rdmsr(X86_MSR_IA32_VMX_BASIC); uint8_t error; asm volatile("vmxon %1; setna %0" : "=q"(error) : "m"(vmxon_addr) : "memory", "cc"); if (error) { guest_uexit(0xE2BAD0); return; } } GUEST_CODE static noinline void nested_enable_svm_amd(uint64_t cpu_id) { uint64_t hsave_addr = X86_SYZOS_ADDR_VM_ARCH_SPECIFIC(cpu_id); uint64_t efer = rdmsr(X86_MSR_IA32_EFER); efer |= X86_EFER_SVME; wrmsr(X86_MSR_IA32_EFER, efer); wrmsr(X86_MSR_VM_HSAVE_PA, hsave_addr); } GUEST_CODE static noinline void guest_handle_enable_nested(struct api_call_1* cmd, uint64_t cpu_id) { if (get_cpu_vendor() == CPU_VENDOR_INTEL) { nested_enable_vmx_intel(cpu_id); } else { nested_enable_svm_amd(cpu_id); } } GUEST_CODE static noinline void setup_l2_page_tables(cpu_vendor_id vendor, uint64_t cpu_id, uint64_t vm_id) { uint64_t l2_pml4_addr = X86_SYZOS_ADDR_VM_PGTABLE(cpu_id, vm_id); uint64_t l2_pdpt_addr = l2_pml4_addr + KVM_PAGE_SIZE; uint64_t l2_pd_addr = l2_pml4_addr + 2 * KVM_PAGE_SIZE; uint64_t l2_pt_addr = l2_pml4_addr + 3 * KVM_PAGE_SIZE; volatile uint64_t* pml4 = (volatile uint64_t*)l2_pml4_addr; volatile uint64_t* pdpt = (volatile uint64_t*)l2_pdpt_addr; volatile uint64_t* pd = (volatile uint64_t*)l2_pd_addr; volatile uint64_t* pt = (volatile uint64_t*)l2_pt_addr; guest_memset((void*)l2_pml4_addr, 0, KVM_PAGE_SIZE); guest_memset((void*)l2_pdpt_addr, 0, KVM_PAGE_SIZE); guest_memset((void*)l2_pd_addr, 0, KVM_PAGE_SIZE); guest_memset((void*)l2_pt_addr, 0, KVM_PAGE_SIZE); guest_memset((void*)X86_SYZOS_ADDR_MSR_BITMAP(cpu_id, vm_id), 0, KVM_PAGE_SIZE); uint64_t flags = X86_PDE64_PRESENT | X86_PDE64_RW | X86_PDE64_USER; pml4[0] = l2_pdpt_addr | flags; pdpt[0] = l2_pd_addr | flags; pd[0] = l2_pt_addr | flags; uint64_t pt_flags = flags; if (vendor == CPU_VENDOR_INTEL) { pt_flags |= EPT_MEMTYPE_WB | EPT_ACCESSED | EPT_DIRTY; } else { pt_flags |= X86_PDE64_ACCESSED | X86_PDE64_DIRTY; } for (int i = 0; i < 512; i++) pt[i] = (i * KVM_PAGE_SIZE) | pt_flags; } GUEST_CODE static noinline void init_vmcs_control_fields(uint64_t cpu_id, uint64_t vm_id) { uint64_t vmx_msr = rdmsr(X86_MSR_IA32_VMX_TRUE_PINBASED_CTLS); vmwrite(VMCS_PIN_BASED_VM_EXEC_CONTROL, (uint32_t)vmx_msr); vmx_msr = (uint32_t)rdmsr(X86_MSR_IA32_VMX_PROCBASED_CTLS2); vmx_msr |= SECONDARY_EXEC_ENABLE_EPT | SECONDARY_EXEC_ENABLE_RDTSCP; vmwrite(VMCS_SECONDARY_VM_EXEC_CONTROL, vmx_msr); vmx_msr = rdmsr(X86_MSR_IA32_VMX_TRUE_PROCBASED_CTLS); vmx_msr |= CPU_BASED_ACTIVATE_SECONDARY_CONTROLS; vmx_msr |= CPU_BASED_HLT_EXITING | CPU_BASED_RDTSC_EXITING; vmwrite(VMCS_CPU_BASED_VM_EXEC_CONTROL, (uint32_t)vmx_msr); vmx_msr = rdmsr(X86_MSR_IA32_VMX_TRUE_EXIT_CTLS); vmwrite(VMCS_VM_EXIT_CONTROLS, (uint32_t)vmx_msr | VM_EXIT_HOST_ADDR_SPACE_SIZE); vmx_msr = rdmsr(X86_MSR_IA32_VMX_TRUE_ENTRY_CTLS); vmwrite(VMCS_VM_ENTRY_CONTROLS, (uint32_t)vmx_msr | VM_ENTRY_IA32E_MODE); uint64_t eptp = (X86_SYZOS_ADDR_VM_PGTABLE(cpu_id, vm_id) & ~0xFFF) | (6 << 0) | (3 << 3); vmwrite(VMCS_EPT_POINTER, eptp); vmwrite(VMCS_CR0_GUEST_HOST_MASK, 0); vmwrite(VMCS_CR4_GUEST_HOST_MASK, 0); vmwrite(VMCS_CR0_READ_SHADOW, read_cr0()); vmwrite(VMCS_CR4_READ_SHADOW, read_cr4()); vmwrite(VMCS_MSR_BITMAP, 0); vmwrite(VMCS_VMREAD_BITMAP, 0); vmwrite(VMCS_VMWRITE_BITMAP, 0); vmwrite(VMCS_EXCEPTION_BITMAP, (1 << 6)); vmwrite(VMCS_VIRTUAL_PROCESSOR_ID, 0); vmwrite(VMCS_POSTED_INTR_NV, 0); vmwrite(VMCS_PAGE_FAULT_ERROR_CODE_MASK, 0); vmwrite(VMCS_PAGE_FAULT_ERROR_CODE_MATCH, -1); vmwrite(VMCS_CR3_TARGET_COUNT, 0); vmwrite(VMCS_VM_EXIT_MSR_STORE_COUNT, 0); vmwrite(VMCS_VM_EXIT_MSR_LOAD_COUNT, 0); vmwrite(VMCS_VM_ENTRY_MSR_LOAD_COUNT, 0); vmwrite(VMCS_VM_ENTRY_INTR_INFO_FIELD, 0); vmwrite(VMCS_TPR_THRESHOLD, 0); } typedef enum { SYZOS_NESTED_EXIT_REASON_HLT = 1, SYZOS_NESTED_EXIT_REASON_INVD = 2, SYZOS_NESTED_EXIT_REASON_CPUID = 3, SYZOS_NESTED_EXIT_REASON_RDTSC = 4, SYZOS_NESTED_EXIT_REASON_RDTSCP = 5, SYZOS_NESTED_EXIT_REASON_UNKNOWN = 0xFF, } syz_nested_exit_reason; GUEST_CODE static void guest_uexit_l2(uint64_t exit_reason, syz_nested_exit_reason mapped_reason, cpu_vendor_id vendor) { if (mapped_reason != SYZOS_NESTED_EXIT_REASON_UNKNOWN) { guest_uexit(0xe2e20000 | mapped_reason); } else if (vendor == CPU_VENDOR_INTEL) { guest_uexit(0xe2110000 | exit_reason); } else { guest_uexit(0xe2aa0000 | exit_reason); } } #define EXIT_REASON_CPUID 0xa #define EXIT_REASON_HLT 0xc #define EXIT_REASON_INVD 0xd #define EXIT_REASON_RDTSC 0x10 #define EXIT_REASON_RDTSCP 0x33 GUEST_CODE static syz_nested_exit_reason map_intel_exit_reason(uint64_t basic_reason) { volatile uint64_t reason = basic_reason; if (reason == EXIT_REASON_HLT) return SYZOS_NESTED_EXIT_REASON_HLT; if (reason == EXIT_REASON_INVD) return SYZOS_NESTED_EXIT_REASON_INVD; if (reason == EXIT_REASON_CPUID) return SYZOS_NESTED_EXIT_REASON_CPUID; if (reason == EXIT_REASON_RDTSC) return SYZOS_NESTED_EXIT_REASON_RDTSC; if (reason == EXIT_REASON_RDTSCP) return SYZOS_NESTED_EXIT_REASON_RDTSCP; return SYZOS_NESTED_EXIT_REASON_UNKNOWN; } GUEST_CODE static void advance_l2_rip_intel(uint64_t basic_reason) { volatile uint64_t reason = basic_reason; uint64_t rip = vmread(VMCS_GUEST_RIP); if ((reason == EXIT_REASON_INVD) || (reason == EXIT_REASON_CPUID) || (reason == EXIT_REASON_RDTSC)) { rip += 2; } else if (reason == EXIT_REASON_RDTSCP) { rip += 3; } vmwrite(VMCS_GUEST_RIP, rip); } __attribute__((used)) GUEST_CODE static void nested_vm_exit_handler_intel(uint64_t exit_reason, struct l2_guest_regs* regs) { uint64_t basic_reason = exit_reason & 0xFFFF; syz_nested_exit_reason mapped_reason = map_intel_exit_reason(basic_reason); guest_uexit_l2(exit_reason, mapped_reason, CPU_VENDOR_INTEL); advance_l2_rip_intel(basic_reason); } extern char after_vmentry_label; __attribute__((naked)) GUEST_CODE static void nested_vm_exit_handler_intel_asm(void) { asm volatile(R"( push %%rax push %%rbx push %%rcx push %%rdx push %%rsi push %%rdi push %%rbp push %%r8 push %%r9 push %%r10 push %%r11 push %%r12 push %%r13 push %%r14 push %%r15 mov %%rsp, %%rsi mov %[vm_exit_reason], %%rbx vmread %%rbx, %%rdi call nested_vm_exit_handler_intel add %[stack_cleanup_size], %%rsp jmp after_vmentry_label )" : : [stack_cleanup_size] "i"(sizeof(struct l2_guest_regs)), [vm_exit_reason] "i"(VMCS_VM_EXIT_REASON) : "memory", "cc", "rbx", "rdi", "rsi"); } #define VMEXIT_RDTSC 0x6e #define VMEXIT_CPUID 0x72 #define VMEXIT_INVD 0x76 #define VMEXIT_HLT 0x78 #define VMEXIT_RDTSCP 0x87 GUEST_CODE static syz_nested_exit_reason map_amd_exit_reason(uint64_t basic_reason) { volatile uint64_t reason = basic_reason; if (reason == VMEXIT_HLT) return SYZOS_NESTED_EXIT_REASON_HLT; if (reason == VMEXIT_INVD) return SYZOS_NESTED_EXIT_REASON_INVD; if (reason == VMEXIT_CPUID) return SYZOS_NESTED_EXIT_REASON_CPUID; if (reason == VMEXIT_RDTSC) return SYZOS_NESTED_EXIT_REASON_RDTSC; if (reason == VMEXIT_RDTSCP) return SYZOS_NESTED_EXIT_REASON_RDTSCP; return SYZOS_NESTED_EXIT_REASON_UNKNOWN; } GUEST_CODE static void advance_l2_rip_amd(uint64_t basic_reason, uint64_t cpu_id, uint64_t vm_id) { volatile uint64_t reason = basic_reason; uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint64_t rip = vmcb_read64((volatile uint8_t*)vmcb_addr, VMCB_GUEST_RIP); if ((reason == VMEXIT_INVD) || (reason == VMEXIT_CPUID) || (reason == VMEXIT_RDTSC)) { rip += 2; } else if (reason == VMEXIT_RDTSCP) { rip += 3; } vmcb_write64(vmcb_addr, VMCB_GUEST_RIP, rip); } __attribute__((used)) GUEST_CODE static void nested_vm_exit_handler_amd(uint64_t exit_reason, uint64_t cpu_id, uint64_t vm_id) { volatile uint64_t basic_reason = exit_reason & 0xFFFF; syz_nested_exit_reason mapped_reason = map_amd_exit_reason(basic_reason); guest_uexit_l2(exit_reason, mapped_reason, CPU_VENDOR_AMD); advance_l2_rip_amd(basic_reason, cpu_id, vm_id); } GUEST_CODE static noinline void init_vmcs_host_state(void) { vmwrite(VMCS_HOST_CS_SELECTOR, X86_SYZOS_SEL_CODE); vmwrite(VMCS_HOST_DS_SELECTOR, X86_SYZOS_SEL_DATA); vmwrite(VMCS_HOST_ES_SELECTOR, X86_SYZOS_SEL_DATA); vmwrite(VMCS_HOST_SS_SELECTOR, X86_SYZOS_SEL_DATA); vmwrite(VMCS_HOST_FS_SELECTOR, X86_SYZOS_SEL_DATA); vmwrite(VMCS_HOST_GS_SELECTOR, X86_SYZOS_SEL_DATA); vmwrite(VMCS_HOST_TR_SELECTOR, X86_SYZOS_SEL_TSS64); vmwrite(VMCS_HOST_TR_BASE, 0); vmwrite(VMCS_HOST_GDTR_BASE, X86_SYZOS_ADDR_GDT); vmwrite(VMCS_HOST_IDTR_BASE, X86_SYZOS_ADDR_VAR_IDT); vmwrite(VMCS_HOST_FS_BASE, rdmsr(X86_MSR_FS_BASE)); vmwrite(VMCS_HOST_GS_BASE, rdmsr(X86_MSR_GS_BASE)); uint64_t tmpreg = 0; asm volatile("mov %%rsp, %0" : "=r"(tmpreg)); vmwrite(VMCS_HOST_RSP, tmpreg); vmwrite(VMCS_HOST_RIP, (uintptr_t)nested_vm_exit_handler_intel_asm); vmwrite(VMCS_HOST_CR0, read_cr0()); vmwrite(VMCS_HOST_CR3, read_cr3()); vmwrite(VMCS_HOST_CR4, read_cr4()); vmwrite(VMCS_HOST_IA32_PAT, rdmsr(X86_MSR_IA32_CR_PAT)); vmwrite(VMCS_HOST_IA32_EFER, rdmsr(X86_MSR_IA32_EFER)); vmwrite(VMCS_HOST_IA32_PERF_GLOBAL_CTRL, rdmsr(X86_MSR_CORE_PERF_GLOBAL_CTRL)); vmwrite(VMCS_HOST_IA32_SYSENTER_CS, rdmsr(X86_MSR_IA32_SYSENTER_CS)); vmwrite(VMCS_HOST_IA32_SYSENTER_ESP, rdmsr(X86_MSR_IA32_SYSENTER_ESP)); vmwrite(VMCS_HOST_IA32_SYSENTER_EIP, rdmsr(X86_MSR_IA32_SYSENTER_EIP)); } #define COPY_VMCS_FIELD(GUEST_FIELD,HOST_FIELD) vmwrite(GUEST_FIELD, vmread(HOST_FIELD)) #define SETUP_L2_SEGMENT(SEG,SELECTOR,BASE,LIMIT,AR) vmwrite(VMCS_GUEST_ ##SEG ##_SELECTOR, SELECTOR); vmwrite(VMCS_GUEST_ ##SEG ##_BASE, BASE); vmwrite(VMCS_GUEST_ ##SEG ##_LIMIT, LIMIT); vmwrite(VMCS_GUEST_ ##SEG ##_ACCESS_RIGHTS, AR); GUEST_CODE static noinline void init_vmcs_guest_state(uint64_t cpu_id, uint64_t vm_id) { uint64_t l2_code_addr = X86_SYZOS_ADDR_VM_CODE(cpu_id, vm_id); uint64_t l2_stack_addr = X86_SYZOS_ADDR_VM_STACK(cpu_id, vm_id); SETUP_L2_SEGMENT(CS, vmread(VMCS_HOST_CS_SELECTOR), 0, 0xFFFFFFFF, VMX_AR_64BIT_CODE); SETUP_L2_SEGMENT(DS, vmread(VMCS_HOST_DS_SELECTOR), 0, 0xFFFFFFFF, VMX_AR_64BIT_DATA_STACK); SETUP_L2_SEGMENT(ES, vmread(VMCS_HOST_ES_SELECTOR), 0, 0xFFFFFFFF, VMX_AR_64BIT_DATA_STACK); SETUP_L2_SEGMENT(SS, vmread(VMCS_HOST_SS_SELECTOR), 0, 0xFFFFFFFF, VMX_AR_64BIT_DATA_STACK); SETUP_L2_SEGMENT(FS, vmread(VMCS_HOST_FS_SELECTOR), vmread(VMCS_HOST_FS_BASE), 0xFFFFFFFF, VMX_AR_64BIT_DATA_STACK); SETUP_L2_SEGMENT(GS, vmread(VMCS_HOST_GS_SELECTOR), vmread(VMCS_HOST_GS_BASE), 0xFFFFFFFF, VMX_AR_64BIT_DATA_STACK); SETUP_L2_SEGMENT(TR, vmread(VMCS_HOST_TR_SELECTOR), vmread(VMCS_HOST_TR_BASE), 0x67, VMX_AR_TSS_BUSY); SETUP_L2_SEGMENT(LDTR, 0, 0, 0, VMX_AR_LDTR_UNUSABLE); vmwrite(VMCS_GUEST_CR0, vmread(VMCS_HOST_CR0)); vmwrite(VMCS_GUEST_CR3, vmread(VMCS_HOST_CR3)); vmwrite(VMCS_GUEST_CR4, vmread(VMCS_HOST_CR4)); vmwrite(VMCS_GUEST_RIP, l2_code_addr); vmwrite(VMCS_GUEST_RSP, l2_stack_addr + KVM_PAGE_SIZE - 8); vmwrite(VMCS_GUEST_RFLAGS, RFLAGS_1_BIT); vmwrite(VMCS_GUEST_DR7, 0x400); COPY_VMCS_FIELD(VMCS_GUEST_IA32_EFER, VMCS_HOST_IA32_EFER); COPY_VMCS_FIELD(VMCS_GUEST_IA32_PAT, VMCS_HOST_IA32_PAT); COPY_VMCS_FIELD(VMCS_GUEST_IA32_PERF_GLOBAL_CTRL, VMCS_HOST_IA32_PERF_GLOBAL_CTRL); COPY_VMCS_FIELD(VMCS_GUEST_SYSENTER_CS, VMCS_HOST_IA32_SYSENTER_CS); COPY_VMCS_FIELD(VMCS_GUEST_SYSENTER_ESP, VMCS_HOST_IA32_SYSENTER_ESP); COPY_VMCS_FIELD(VMCS_GUEST_SYSENTER_EIP, VMCS_HOST_IA32_SYSENTER_EIP); vmwrite(VMCS_GUEST_IA32_DEBUGCTL, 0); vmwrite(VMCS_GUEST_GDTR_BASE, vmread(VMCS_HOST_GDTR_BASE)); vmwrite(VMCS_GUEST_GDTR_LIMIT, 0xffff); vmwrite(VMCS_GUEST_IDTR_BASE, vmread(VMCS_HOST_IDTR_BASE)); vmwrite(VMCS_GUEST_IDTR_LIMIT, 0xffff); vmwrite(VMCS_LINK_POINTER, 0xffffffffffffffff); vmwrite(VMCS_GUEST_ACTIVITY_STATE, 0); vmwrite(VMCS_GUEST_INTERRUPTIBILITY_INFO, 0); vmwrite(VMCS_GUEST_PENDING_DBG_EXCEPTIONS, 0); vmwrite(VMCS_VMX_PREEMPTION_TIMER_VALUE, 0); vmwrite(VMCS_GUEST_INTR_STATUS, 0); vmwrite(VMCS_GUEST_PML_INDEX, 0); } GUEST_CODE static noinline void nested_create_vm_intel(struct api_call_1* cmd, uint64_t cpu_id) { uint64_t vm_id = cmd->arg; uint64_t vmcs_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint8_t error = 0; *(uint32_t*)vmcs_addr = rdmsr(X86_MSR_IA32_VMX_BASIC); asm volatile("vmclear %1; setna %0" : "=q"(error) : "m"(vmcs_addr) : "memory", "cc"); if (error) { guest_uexit(0xE2BAD1); return; } nested_vmptrld(cpu_id, vm_id); setup_l2_page_tables(CPU_VENDOR_INTEL, cpu_id, vm_id); init_vmcs_control_fields(cpu_id, vm_id); init_vmcs_host_state(); init_vmcs_guest_state(cpu_id, vm_id); } #define SETUP_L2_SEGMENT_SVM(VMBC_PTR,SEG_NAME,SELECTOR,BASE,LIMIT,ATTR) vmcb_write16(VMBC_PTR, VMCB_GUEST_ ##SEG_NAME ##_SEL, SELECTOR); vmcb_write16(VMBC_PTR, VMCB_GUEST_ ##SEG_NAME ##_ATTR, ATTR); vmcb_write32(VMBC_PTR, VMCB_GUEST_ ##SEG_NAME ##_LIM, LIMIT); vmcb_write64(VMBC_PTR, VMCB_GUEST_ ##SEG_NAME ##_BASE, BASE); GUEST_CODE static noinline void init_vmcb_guest_state(uint64_t cpu_id, uint64_t vm_id) { uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint64_t l2_code_addr = X86_SYZOS_ADDR_VM_CODE(cpu_id, vm_id); uint64_t l2_stack_addr = X86_SYZOS_ADDR_VM_STACK(cpu_id, vm_id); uint64_t npt_pml4_addr = X86_SYZOS_ADDR_VM_PGTABLE(cpu_id, vm_id); SETUP_L2_SEGMENT_SVM(vmcb_addr, CS, X86_SYZOS_SEL_CODE, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_CODE); SETUP_L2_SEGMENT_SVM(vmcb_addr, DS, X86_SYZOS_SEL_DATA, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_DATA); SETUP_L2_SEGMENT_SVM(vmcb_addr, ES, X86_SYZOS_SEL_DATA, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_DATA); SETUP_L2_SEGMENT_SVM(vmcb_addr, SS, X86_SYZOS_SEL_DATA, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_DATA); SETUP_L2_SEGMENT_SVM(vmcb_addr, FS, X86_SYZOS_SEL_DATA, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_DATA); SETUP_L2_SEGMENT_SVM(vmcb_addr, GS, X86_SYZOS_SEL_DATA, 0, 0xFFFFFFFF, SVM_ATTR_64BIT_DATA); SETUP_L2_SEGMENT_SVM(vmcb_addr, TR, X86_SYZOS_SEL_TSS64, X86_SYZOS_ADDR_VAR_TSS, 0x67, VMX_AR_TSS_AVAILABLE); SETUP_L2_SEGMENT_SVM(vmcb_addr, LDTR, 0, 0, 0, SVM_ATTR_LDTR_UNUSABLE); uint64_t efer = rdmsr(X86_MSR_IA32_EFER); vmcb_write64(vmcb_addr, VMCB_GUEST_CR0, read_cr0() | X86_CR0_WP); vmcb_write64(vmcb_addr, VMCB_GUEST_CR3, read_cr3()); vmcb_write64(vmcb_addr, VMCB_GUEST_CR4, read_cr4()); vmcb_write64(vmcb_addr, VMCB_GUEST_RIP, l2_code_addr); vmcb_write64(vmcb_addr, VMCB_GUEST_RSP, l2_stack_addr + KVM_PAGE_SIZE - 8); vmcb_write64(vmcb_addr, VMCB_GUEST_RFLAGS, RFLAGS_1_BIT); vmcb_write64(vmcb_addr, VMCB_GUEST_DEBUGCTL, 0); vmcb_write64(vmcb_addr, VMCB_GUEST_DR6, 0x0); vmcb_write64(vmcb_addr, VMCB_GUEST_DR7, 0x0); vmcb_write64(vmcb_addr, VMCB_GUEST_EFER, efer & ~X86_EFER_SCE); vmcb_write64(vmcb_addr, VMCB_GUEST_PAT, rdmsr(X86_MSR_IA32_CR_PAT)); struct { uint16_t limit; uint64_t base; } __attribute__((packed)) gdtr, idtr; asm volatile("sgdt %0" : "=m"(gdtr)); asm volatile("sidt %0" : "=m"(idtr)); vmcb_write64(vmcb_addr, VMCB_GUEST_GDTR_BASE, gdtr.base); vmcb_write32(vmcb_addr, VMCB_GUEST_GDTR_LIM, gdtr.limit); vmcb_write64(vmcb_addr, VMCB_GUEST_IDTR_BASE, idtr.base); vmcb_write32(vmcb_addr, VMCB_GUEST_IDTR_LIM, idtr.limit); vmcb_write32(vmcb_addr, VMCB_CTRL_INTERCEPT_VEC3, VMCB_CTRL_INTERCEPT_VEC3_ALL); vmcb_write32(vmcb_addr, VMCB_CTRL_INTERCEPT_VEC4, VMCB_CTRL_INTERCEPT_VEC4_ALL); vmcb_write64(vmcb_addr, VMCB_CTRL_NP_ENABLE, (1 << VMCB_CTRL_NPT_ENABLE_BIT)); uint64_t npt_pointer = (npt_pml4_addr & ~0xFFF); vmcb_write64(vmcb_addr, VMCB_CTRL_N_CR3, npt_pointer); vmcb_write32(vmcb_addr, VMCB_CTRL_ASID, 1); } GUEST_CODE static noinline void nested_create_vm_amd(struct api_call_1* cmd, uint64_t cpu_id) { uint64_t vm_id = cmd->arg; uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); guest_memset((void*)vmcb_addr, 0, KVM_PAGE_SIZE); guest_memset((void*)X86_SYZOS_ADDR_VM_ARCH_SPECIFIC(cpu_id), 0, KVM_PAGE_SIZE); setup_l2_page_tables(CPU_VENDOR_AMD, cpu_id, vm_id); init_vmcb_guest_state(cpu_id, vm_id); } GUEST_CODE static noinline void guest_handle_nested_create_vm(struct api_call_1* cmd, uint64_t cpu_id) { if (get_cpu_vendor() == CPU_VENDOR_INTEL) { nested_create_vm_intel(cmd, cpu_id); } else { nested_create_vm_amd(cmd, cpu_id); } } GUEST_CODE static noinline void guest_handle_nested_load_code(struct api_call_nested_load_code* cmd, uint64_t cpu_id) { uint64_t vm_id = cmd->vm_id; uint64_t l2_code_addr = X86_SYZOS_ADDR_VM_CODE(cpu_id, vm_id); uint64_t l2_stack_addr = X86_SYZOS_ADDR_VM_STACK(cpu_id, vm_id); uint64_t l2_code_size = cmd->header.size - sizeof(struct api_call_header) - sizeof(uint64_t); if (l2_code_size > KVM_PAGE_SIZE) l2_code_size = KVM_PAGE_SIZE; guest_memcpy((void*)l2_code_addr, (void*)cmd->insns, l2_code_size); if (get_cpu_vendor() == CPU_VENDOR_INTEL) { nested_vmptrld(cpu_id, vm_id); vmwrite(VMCS_GUEST_RIP, l2_code_addr); vmwrite(VMCS_GUEST_RSP, l2_stack_addr + KVM_PAGE_SIZE - 8); } else { vmcb_write64(X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id), VMCB_GUEST_RIP, l2_code_addr); vmcb_write64(X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id), VMCB_GUEST_RSP, l2_stack_addr + KVM_PAGE_SIZE - 8); } } GUEST_CODE static noinline __optnone void guest_handle_nested_vmentry_intel(uint64_t vm_id, uint64_t cpu_id, bool is_launch) { uint64_t vmx_error_code = 0; uint8_t fail_flag = 0; nested_vmptrld(cpu_id, vm_id); if (is_launch) { asm volatile(R"( vmlaunch setc %%al setz %%bl or %%bl, %%al)" : "=a"(fail_flag) : : "rbx", "cc", "memory"); } else { asm volatile(R"( vmresume setc %%al setz %%bl or %%bl, %%al)" : "=a"(fail_flag) : : "rbx", "cc", "memory"); } asm volatile(".globl after_vmentry_label\nafter_vmentry_label:"); if (fail_flag) { vmx_error_code = vmread(VMCS_VM_INSTRUCTION_ERROR); guest_uexit(0xE2E10000 | (uint32_t)vmx_error_code); return; } } GUEST_CODE static noinline void guest_run_amd_vm(uint64_t cpu_id, uint64_t vm_id) { uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); volatile uint8_t* vmcb_ptr = (volatile uint8_t*)vmcb_addr; uint8_t fail_flag = 0; asm volatile( "mov %1, %%rax\n\t" "vmrun\n\t" "setc %0\n\t" : "=q"(fail_flag) : "m"(vmcb_addr) : "rax", "cc", "memory"); if (fail_flag) { guest_uexit(0xE2E10000 | 0xFFFF); return; } uint64_t exit_reason = vmcb_read64(vmcb_ptr, VMCB_EXIT_CODE); nested_vm_exit_handler_amd(exit_reason, cpu_id, vm_id); } GUEST_CODE static noinline void guest_handle_nested_vmlaunch(struct api_call_1* cmd, uint64_t cpu_id) { uint64_t vm_id = cmd->arg; if (get_cpu_vendor() == CPU_VENDOR_INTEL) { guest_handle_nested_vmentry_intel(vm_id, cpu_id, true); } else { guest_run_amd_vm(cpu_id, vm_id); } } GUEST_CODE static noinline void guest_handle_nested_vmresume(struct api_call_1* cmd, uint64_t cpu_id) { uint64_t vm_id = cmd->arg; if (get_cpu_vendor() == CPU_VENDOR_INTEL) { guest_handle_nested_vmentry_intel(vm_id, cpu_id, false); } else { guest_run_amd_vm(cpu_id, vm_id); } } GUEST_CODE static noinline void guest_handle_nested_intel_vmwrite_mask(struct api_call_5* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_INTEL) return; uint64_t vm_id = cmd->args[0]; nested_vmptrld(cpu_id, vm_id); uint64_t field = cmd->args[1]; uint64_t set_mask = cmd->args[2]; uint64_t unset_mask = cmd->args[3]; uint64_t flip_mask = cmd->args[4]; uint64_t current_value = vmread(field); uint64_t new_value = (current_value & ~unset_mask) | set_mask; new_value ^= flip_mask; vmwrite(field, new_value); } GUEST_CODE static noinline void guest_handle_nested_amd_vmcb_write_mask(struct api_call_5* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t vm_id = cmd->args[0]; uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint64_t offset = cmd->args[1]; uint64_t set_mask = cmd->args[2]; uint64_t unset_mask = cmd->args[3]; uint64_t flip_mask = cmd->args[4]; uint64_t current_value = vmcb_read64((volatile uint8_t*)vmcb_addr, offset); uint64_t new_value = (current_value & ~unset_mask) | set_mask; new_value ^= flip_mask; vmcb_write64(vmcb_addr, offset, new_value); } GUEST_CODE static noinline void guest_handle_nested_amd_invlpga(struct api_call_2* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t linear_addr = cmd->args[0]; uint32_t asid = (uint32_t)cmd->args[1]; asm volatile("invlpga" : : "a"(linear_addr), "c"(asid) : "memory"); } GUEST_CODE static noinline void guest_handle_nested_amd_stgi() { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; asm volatile("stgi" ::: "memory"); } GUEST_CODE static noinline void guest_handle_nested_amd_clgi() { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; asm volatile("clgi" ::: "memory"); } GUEST_CODE static noinline void guest_handle_nested_amd_inject_event(struct api_call_5* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t vm_id = cmd->args[0]; uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint64_t vector = cmd->args[1] & 0xFF; uint64_t type = cmd->args[2] & 0x7; uint64_t error_code = cmd->args[3] & 0xFFFFFFFF; uint64_t flags = cmd->args[4]; uint64_t event_inj = vector; event_inj |= (type << 8); if (flags & 2) event_inj |= (1ULL << 11); if (flags & 1) event_inj |= (1ULL << 31); event_inj |= (error_code << 32); vmcb_write64(vmcb_addr, 0x60, event_inj); } GUEST_CODE static noinline void guest_handle_nested_amd_set_intercept(struct api_call_5* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t vm_id = cmd->args[0]; uint64_t vmcb_addr = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); uint64_t offset = cmd->args[1]; uint64_t bit_mask = cmd->args[2]; uint64_t action = cmd->args[3]; uint32_t current = vmcb_read32(vmcb_addr, (uint16_t)offset); if (action == 1) current |= (uint32_t)bit_mask; else current &= ~((uint32_t)bit_mask); vmcb_write32(vmcb_addr, (uint16_t)offset, current); } GUEST_CODE static noinline void guest_handle_nested_amd_vmload(struct api_call_1* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t vm_id = cmd->arg; uint64_t vmcb_pa = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); asm volatile("vmload %%rax" ::"a"(vmcb_pa) : "memory"); } GUEST_CODE static noinline void guest_handle_nested_amd_vmsave(struct api_call_1* cmd, uint64_t cpu_id) { if (get_cpu_vendor() != CPU_VENDOR_AMD) return; uint64_t vm_id = cmd->arg; uint64_t vmcb_pa = X86_SYZOS_ADDR_VMCS_VMCB(cpu_id, vm_id); asm volatile("vmsave %%rax" ::"a"(vmcb_pa) : "memory"); } const char kvm_asm16_cpl3[] = "\x0f\x20\xc0\x66\x83\xc8\x01\x0f\x22\xc0\xb8\xa0\x00\x0f\x00\xd8\xb8\x2b\x00\x8e\xd8\x8e\xc0\x8e\xe0\x8e\xe8\xbc\x00\x01\xc7\x06\x00\x01\x1d\xba\xc7\x06\x02\x01\x23\x00\xc7\x06\x04\x01\x00\x01\xc7\x06\x06\x01\x2b\x00\xcb"; const char kvm_asm32_paged[] = "\x0f\x20\xc0\x0d\x00\x00\x00\x80\x0f\x22\xc0"; const char kvm_asm32_vm86[] = "\x66\xb8\xb8\x00\x0f\x00\xd8\xea\x00\x00\x00\x00\xd0\x00"; const char kvm_asm32_paged_vm86[] = "\x0f\x20\xc0\x0d\x00\x00\x00\x80\x0f\x22\xc0\x66\xb8\xb8\x00\x0f\x00\xd8\xea\x00\x00\x00\x00\xd0\x00"; const char kvm_asm64_enable_long[] = "\x0f\x20\xc0\x0d\x00\x00\x00\x80\x0f\x22\xc0\xea\xde\xc0\xad\x0b\x50\x00\x48\xc7\xc0\xd8\x00\x00\x00\x0f\x00\xd8"; const char kvm_asm64_init_vm[] = 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const char kvm_asm64_vm_exit[] = "\x48\xc7\xc3\x00\x44\x00\x00\x0f\x78\xda\x48\xc7\xc3\x02\x44\x00\x00\x0f\x78\xd9\x48\xc7\xc0\x00\x64\x00\x00\x0f\x78\xc0\x48\xc7\xc3\x1e\x68\x00\x00\x0f\x78\xdb\xf4"; const char kvm_asm64_cpl3[] = "\x0f\x20\xc0\x0d\x00\x00\x00\x80\x0f\x22\xc0\xea\xde\xc0\xad\x0b\x50\x00\x48\xc7\xc0\xd8\x00\x00\x00\x0f\x00\xd8\x48\xc7\xc0\x6b\x00\x00\x00\x8e\xd8\x8e\xc0\x8e\xe0\x8e\xe8\x48\xc7\xc4\x80\x0f\x00\x00\x48\xc7\x04\x24\x1d\xba\x00\x00\x48\xc7\x44\x24\x04\x63\x00\x00\x00\x48\xc7\x44\x24\x08\x80\x0f\x00\x00\x48\xc7\x44\x24\x0c\x6b\x00\x00\x00\xcb"; #define KVM_SMI _IO(KVMIO, 0xb7) struct tss16 { uint16_t prev; uint16_t sp0; uint16_t ss0; uint16_t sp1; uint16_t ss1; uint16_t sp2; uint16_t ss2; uint16_t ip; uint16_t flags; uint16_t ax; uint16_t cx; uint16_t dx; uint16_t bx; uint16_t sp; uint16_t bp; uint16_t si; uint16_t di; uint16_t es; uint16_t cs; uint16_t ss; uint16_t ds; uint16_t ldt; } __attribute__((packed)); struct tss32 { uint16_t prev, prevh; uint32_t sp0; uint16_t ss0, ss0h; uint32_t sp1; uint16_t ss1, ss1h; uint32_t sp2; uint16_t ss2, ss2h; uint32_t cr3; uint32_t ip; uint32_t flags; uint32_t ax; uint32_t cx; uint32_t dx; uint32_t bx; uint32_t sp; uint32_t bp; uint32_t si; uint32_t di; uint16_t es, esh; uint16_t cs, csh; uint16_t ss, ssh; uint16_t ds, dsh; uint16_t fs, fsh; uint16_t gs, gsh; uint16_t ldt, ldth; uint16_t trace; uint16_t io_bitmap; } __attribute__((packed)); struct tss64 { uint32_t reserved0; uint64_t rsp[3]; uint64_t reserved1; uint64_t ist[7]; uint64_t reserved2; uint16_t reserved3; uint16_t io_bitmap; } __attribute__((packed)); static void fill_segment_descriptor(uint64_t* dt, uint64_t* lt, struct kvm_segment* seg) { uint16_t index = seg->selector >> 3; uint64_t limit = seg->g ? seg->limit >> 12 : seg->limit; uint64_t sd = (limit & 0xffff) | (seg->base & 0xffffff) << 16 | (uint64_t)seg->type << 40 | (uint64_t)seg->s << 44 | (uint64_t)seg->dpl << 45 | (uint64_t)seg->present << 47 | (limit & 0xf0000ULL) << 48 | (uint64_t)seg->avl << 52 | (uint64_t)seg->l << 53 | (uint64_t)seg->db << 54 | (uint64_t)seg->g << 55 | (seg->base & 0xff000000ULL) << 56; dt[index] = sd; lt[index] = sd; } static void fill_segment_descriptor_dword(uint64_t* dt, uint64_t* lt, struct kvm_segment* seg) { fill_segment_descriptor(dt, lt, seg); uint16_t index = seg->selector >> 3; dt[index + 1] = 0; lt[index + 1] = 0; } static void setup_syscall_msrs(int cpufd, uint16_t sel_cs, uint16_t sel_cs_cpl3) { char buf[sizeof(struct kvm_msrs) + 5 * sizeof(struct kvm_msr_entry)]; memset(buf, 0, sizeof(buf)); struct kvm_msrs* msrs = (struct kvm_msrs*)buf; struct kvm_msr_entry* entries = msrs->entries; msrs->nmsrs = 5; entries[0].index = X86_MSR_IA32_SYSENTER_CS; entries[0].data = sel_cs; entries[1].index = X86_MSR_IA32_SYSENTER_ESP; entries[1].data = X86_ADDR_STACK0; entries[2].index = X86_MSR_IA32_SYSENTER_EIP; entries[2].data = X86_ADDR_VAR_SYSEXIT; entries[3].index = X86_MSR_IA32_STAR; entries[3].data = ((uint64_t)sel_cs << 32) | ((uint64_t)sel_cs_cpl3 << 48); entries[4].index = X86_MSR_IA32_LSTAR; entries[4].data = X86_ADDR_VAR_SYSRET; ioctl(cpufd, KVM_SET_MSRS, msrs); } static void setup_32bit_idt(struct kvm_sregs* sregs, char* host_mem, uintptr_t guest_mem) { sregs->idt.base = guest_mem + X86_ADDR_VAR_IDT; sregs->idt.limit = 0x1ff; uint64_t* idt = (uint64_t*)(host_mem + sregs->idt.base); for (int i = 0; i < 32; i++) { struct kvm_segment gate; gate.selector = i << 3; switch (i % 6) { case 0: gate.type = 6; gate.base = X86_SEL_CS16; break; case 1: gate.type = 7; gate.base = X86_SEL_CS16; break; case 2: gate.type = 3; gate.base = X86_SEL_TGATE16; break; case 3: gate.type = 14; gate.base = X86_SEL_CS32; break; case 4: gate.type = 15; gate.base = X86_SEL_CS32; break; case 5: gate.type = 11; gate.base = X86_SEL_TGATE32; break; } gate.limit = guest_mem + X86_ADDR_VAR_USER_CODE2; gate.present = 1; gate.dpl = 0; gate.s = 0; gate.g = 0; gate.db = 0; gate.l = 0; gate.avl = 0; fill_segment_descriptor(idt, idt, &gate); } } static void setup_64bit_idt(struct kvm_sregs* sregs, char* host_mem, uintptr_t guest_mem) { sregs->idt.base = guest_mem + X86_ADDR_VAR_IDT; sregs->idt.limit = 0x1ff; uint64_t* idt = (uint64_t*)(host_mem + sregs->idt.base); for (int i = 0; i < 32; i++) { struct kvm_segment gate; gate.selector = (i * 2) << 3; gate.type = (i & 1) ? 14 : 15; gate.base = X86_SEL_CS64; gate.limit = guest_mem + X86_ADDR_VAR_USER_CODE2; gate.present = 1; gate.dpl = 0; gate.s = 0; gate.g = 0; gate.db = 0; gate.l = 0; gate.avl = 0; fill_segment_descriptor_dword(idt, idt, &gate); } } #define MEM_REGION_FLAG_USER_CODE (1 << 0) #define MEM_REGION_FLAG_DIRTY_LOG (1 << 1) #define MEM_REGION_FLAG_READONLY (1 << 2) #define MEM_REGION_FLAG_EXECUTOR_CODE (1 << 3) #define MEM_REGION_FLAG_GPA0 (1 << 5) #define MEM_REGION_FLAG_NO_HOST_MEM (1 << 6) struct mem_region { uint64_t gpa; int pages; uint32_t flags; }; static const struct mem_region syzos_mem_regions[] = { {X86_SYZOS_ADDR_ZERO, 48, MEM_REGION_FLAG_GPA0}, {X86_SYZOS_ADDR_SMRAM, 10, 0}, {X86_SYZOS_ADDR_EXIT, 1, MEM_REGION_FLAG_NO_HOST_MEM}, {X86_SYZOS_ADDR_DIRTY_PAGES, 2, MEM_REGION_FLAG_DIRTY_LOG}, {X86_SYZOS_ADDR_USER_CODE, KVM_MAX_VCPU, MEM_REGION_FLAG_READONLY | MEM_REGION_FLAG_USER_CODE}, {SYZOS_ADDR_EXECUTOR_CODE, 4, MEM_REGION_FLAG_READONLY | MEM_REGION_FLAG_EXECUTOR_CODE}, {X86_SYZOS_ADDR_SCRATCH_CODE, 1, 0}, {X86_SYZOS_ADDR_STACK_BOTTOM, 1, 0}, {X86_SYZOS_PER_VCPU_REGIONS_BASE, (KVM_MAX_VCPU * X86_SYZOS_L1_VCPU_REGION_SIZE) / KVM_PAGE_SIZE, 0}, {X86_SYZOS_ADDR_IOAPIC, 1, 0}, }; struct kvm_syz_vm { int vmfd; int next_cpu_id; void* host_mem; size_t total_pages; void* user_text; void* gpa0_mem; }; #define X86_NUM_IDT_ENTRIES 256 static void syzos_setup_idt(struct kvm_syz_vm* vm, struct kvm_sregs* sregs) { sregs->idt.base = X86_SYZOS_ADDR_VAR_IDT; sregs->idt.limit = (X86_NUM_IDT_ENTRIES * sizeof(struct idt_entry_64)) - 1; volatile struct idt_entry_64* idt = (volatile struct idt_entry_64*)((uint64_t)vm->host_mem + sregs->idt.base); uint64_t handler_addr = executor_fn_guest_addr(dummy_null_handler); for (int i = 0; i < X86_NUM_IDT_ENTRIES; i++) { idt[i].offset_low = (uint16_t)(handler_addr & 0xFFFF); idt[i].selector = X86_SYZOS_SEL_CODE; idt[i].ist = 0; idt[i].type_attr = 0x8E; idt[i].offset_mid = (uint16_t)((handler_addr >> 16) & 0xFFFF); idt[i].offset_high = (uint32_t)((handler_addr >> 32) & 0xFFFFFFFF); idt[i].reserved = 0; } } struct kvm_text { uintptr_t typ; const void* text; uintptr_t size; }; struct kvm_opt { uint64_t typ; uint64_t val; }; #define PAGE_MASK GENMASK_ULL(51, 12) typedef struct { uint64_t next_page; uint64_t last_page; } page_alloc_t; static uint64_t pg_alloc(page_alloc_t* alloc) { if (alloc->next_page >= alloc->last_page) exit(1); uint64_t page = alloc->next_page; alloc->next_page += KVM_PAGE_SIZE; return page; } static void map_4k_page(uint64_t host_mem, page_alloc_t* alloc, uint64_t gpa) { uint64_t* pml4 = (uint64_t*)(host_mem + X86_SYZOS_ADDR_PML4); uint64_t pml4_idx = (gpa >> 39) & 0x1FF; if (pml4[pml4_idx] == 0) pml4[pml4_idx] = X86_PDE64_PRESENT | X86_PDE64_RW | pg_alloc(alloc); uint64_t* pdpt = (uint64_t*)(host_mem + (pml4[pml4_idx] & PAGE_MASK)); uint64_t pdpt_idx = (gpa >> 30) & 0x1FF; if (pdpt[pdpt_idx] == 0) pdpt[pdpt_idx] = X86_PDE64_PRESENT | X86_PDE64_RW | pg_alloc(alloc); uint64_t* pd = (uint64_t*)(host_mem + (pdpt[pdpt_idx] & PAGE_MASK)); uint64_t pd_idx = (gpa >> 21) & 0x1FF; if (pd[pd_idx] == 0) pd[pd_idx] = X86_PDE64_PRESENT | X86_PDE64_RW | pg_alloc(alloc); uint64_t* pt = (uint64_t*)(host_mem + (pd[pd_idx] & PAGE_MASK)); uint64_t pt_idx = (gpa >> 12) & 0x1FF; pt[pt_idx] = (gpa & PAGE_MASK) | X86_PDE64_PRESENT | X86_PDE64_RW; } static int map_4k_region(uint64_t host_mem, page_alloc_t* alloc, uint64_t gpa_start, int num_pages) { for (int i = 0; i < num_pages; i++) map_4k_page(host_mem, alloc, gpa_start + (i * KVM_PAGE_SIZE)); return num_pages; } static void setup_pg_table(struct kvm_syz_vm* vm) { int total = vm->total_pages; uint64_t host_mem = (uint64_t)vm->gpa0_mem; page_alloc_t alloc = {.next_page = X86_SYZOS_ADDR_PT_POOL, .last_page = X86_SYZOS_ADDR_PT_POOL + 32 * KVM_PAGE_SIZE}; for (uint64_t i = 0; i < (alloc.last_page - alloc.next_page); i += KVM_PAGE_SIZE) memset((void*)(host_mem + alloc.next_page + i), 0, KVM_PAGE_SIZE); for (size_t i = 0; i < sizeof(syzos_mem_regions) / sizeof(syzos_mem_regions[0]); i++) total -= map_4k_region(host_mem, &alloc, syzos_mem_regions[i].gpa, syzos_mem_regions[i].pages); map_4k_region(host_mem, &alloc, X86_SYZOS_ADDR_UNUSED, total); } struct gdt_entry { uint16_t limit_low; uint16_t base_low; uint8_t base_mid; uint8_t access; uint8_t limit_high_and_flags; uint8_t base_high; } __attribute__((packed)); static void setup_gdt_64(struct gdt_entry* gdt) { gdt[0] = (struct gdt_entry){0}; gdt[X86_SYZOS_SEL_CODE >> 3] = (struct gdt_entry){ .limit_low = 0xFFFF, .base_low = 0, .base_mid = 0, .access = 0x9A, .limit_high_and_flags = 0xAF, .base_high = 0}; gdt[X86_SYZOS_SEL_DATA >> 3] = (struct gdt_entry){ .limit_low = 0xFFFF, .base_low = (uint16_t)(X86_SYZOS_ADDR_VAR_TSS & 0xFFFF), .base_mid = (uint8_t)((X86_SYZOS_ADDR_VAR_TSS >> 16) & 0xFF), .access = 0x92, .limit_high_and_flags = 0xCF, .base_high = (uint8_t)((X86_SYZOS_ADDR_VAR_TSS >> 24) & 0xFF)}; gdt[X86_SYZOS_SEL_TSS64 >> 3] = (struct gdt_entry){ .limit_low = 0x67, .base_low = 0, .base_mid = 0, .access = 0x89, .limit_high_and_flags = 0x00, .base_high = 0}; } static void setup_gdt_ldt_pg(struct kvm_syz_vm* vm, int cpufd) { struct kvm_sregs sregs; ioctl(cpufd, KVM_GET_SREGS, &sregs); sregs.gdt.base = X86_SYZOS_ADDR_GDT; sregs.gdt.limit = 5 * sizeof(struct gdt_entry) - 1; struct gdt_entry* gdt = (struct gdt_entry*)((uint64_t)vm->host_mem + sregs.gdt.base); struct kvm_segment seg_cs64; memset(&seg_cs64, 0, sizeof(seg_cs64)); seg_cs64.selector = X86_SYZOS_SEL_CODE; seg_cs64.type = 11; seg_cs64.base = 0; seg_cs64.limit = 0xFFFFFFFFu; seg_cs64.present = 1; seg_cs64.s = 1; seg_cs64.g = 1; seg_cs64.l = 1; sregs.cs = seg_cs64; struct kvm_segment seg_ds64; memset(&seg_ds64, 0, sizeof(struct kvm_segment)); seg_ds64.selector = X86_SYZOS_SEL_DATA; seg_ds64.type = 3; seg_ds64.limit = 0xFFFFFFFFu; seg_ds64.present = 1; seg_ds64.s = 1; seg_ds64.g = 1; seg_ds64.db = 1; sregs.ds = seg_ds64; sregs.es = seg_ds64; sregs.fs = seg_ds64; sregs.gs = seg_ds64; sregs.ss = seg_ds64; struct kvm_segment seg_tr; memset(&seg_tr, 0, sizeof(seg_tr)); seg_tr.selector = X86_SYZOS_SEL_TSS64; seg_tr.type = 11; seg_tr.base = X86_SYZOS_ADDR_VAR_TSS; seg_tr.limit = 0x67; seg_tr.present = 1; seg_tr.s = 0; sregs.tr = seg_tr; volatile uint8_t* l1_tss = (volatile uint8_t*)((uint64_t)vm->host_mem + X86_SYZOS_ADDR_VAR_TSS); memset((void*)l1_tss, 0, 104); *(volatile uint64_t*)(l1_tss + 4) = X86_SYZOS_ADDR_STACK0; setup_gdt_64(gdt); syzos_setup_idt(vm, &sregs); setup_pg_table(vm); sregs.cr0 = X86_CR0_PE | X86_CR0_NE | X86_CR0_PG; sregs.cr4 |= X86_CR4_PAE | X86_CR4_OSFXSR; sregs.efer |= (X86_EFER_LME | X86_EFER_LMA | X86_EFER_NXE); sregs.cr3 = X86_ADDR_PML4; ioctl(cpufd, KVM_SET_SREGS, &sregs); } static void setup_cpuid(int cpufd) { int kvmfd = open("/dev/kvm", O_RDWR); char buf[sizeof(struct kvm_cpuid2) + 128 * sizeof(struct kvm_cpuid_entry2)]; memset(buf, 0, sizeof(buf)); struct kvm_cpuid2* cpuid = (struct kvm_cpuid2*)buf; cpuid->nent = 128; ioctl(kvmfd, KVM_GET_SUPPORTED_CPUID, cpuid); ioctl(cpufd, KVM_SET_CPUID2, cpuid); close(kvmfd); } #define KVM_SETUP_PAGING (1 << 0) #define KVM_SETUP_PAE (1 << 1) #define KVM_SETUP_PROTECTED (1 << 2) #define KVM_SETUP_CPL3 (1 << 3) #define KVM_SETUP_VIRT86 (1 << 4) #define KVM_SETUP_SMM (1 << 5) #define KVM_SETUP_VM (1 << 6) static volatile long syz_kvm_setup_cpu(volatile long a0, volatile long a1, volatile long a2, volatile long a3, volatile long a4, volatile long a5, volatile long a6, volatile long a7) { const int vmfd = a0; const int cpufd = a1; char* const host_mem = (char*)a2; const struct kvm_text* const text_array_ptr = (struct kvm_text*)a3; const uintptr_t text_count = a4; const uintptr_t flags = a5; const struct kvm_opt* const opt_array_ptr = (struct kvm_opt*)a6; uintptr_t opt_count = a7; const uintptr_t page_size = 4 << 10; const uintptr_t ioapic_page = 10; const uintptr_t guest_mem_size = 24 * page_size; const uintptr_t guest_mem = 0; (void)text_count; int text_type = text_array_ptr[0].typ; const void* text = text_array_ptr[0].text; uintptr_t text_size = text_array_ptr[0].size; for (uintptr_t i = 0; i < guest_mem_size / page_size; i++) { struct kvm_userspace_memory_region memreg; memreg.slot = i; memreg.flags = 0; memreg.guest_phys_addr = guest_mem + i * page_size; if (i == ioapic_page) memreg.guest_phys_addr = 0xfec00000; memreg.memory_size = page_size; memreg.userspace_addr = (uintptr_t)host_mem + i * page_size; ioctl(vmfd, KVM_SET_USER_MEMORY_REGION, &memreg); } struct kvm_userspace_memory_region memreg; memreg.slot = 1 + (1 << 16); memreg.flags = 0; memreg.guest_phys_addr = 0x30000; memreg.memory_size = 64 << 10; memreg.userspace_addr = (uintptr_t)host_mem; ioctl(vmfd, KVM_SET_USER_MEMORY_REGION, &memreg); struct kvm_sregs sregs; if (ioctl(cpufd, KVM_GET_SREGS, &sregs)) return -1; struct kvm_regs regs; memset(®s, 0, sizeof(regs)); regs.rip = guest_mem + X86_ADDR_TEXT; regs.rsp = X86_ADDR_STACK0; sregs.gdt.base = guest_mem + X86_ADDR_GDT; sregs.gdt.limit = 256 * sizeof(uint64_t) - 1; uint64_t* gdt = (uint64_t*)(host_mem + sregs.gdt.base); struct kvm_segment seg_ldt; memset(&seg_ldt, 0, sizeof(seg_ldt)); seg_ldt.selector = X86_SEL_LDT; seg_ldt.type = 2; seg_ldt.base = guest_mem + X86_ADDR_LDT; seg_ldt.limit = 256 * sizeof(uint64_t) - 1; seg_ldt.present = 1; seg_ldt.dpl = 0; seg_ldt.s = 0; seg_ldt.g = 0; seg_ldt.db = 1; seg_ldt.l = 0; sregs.ldt = seg_ldt; uint64_t* ldt = (uint64_t*)(host_mem + sregs.ldt.base); struct kvm_segment seg_cs16; memset(&seg_cs16, 0, sizeof(seg_cs16)); seg_cs16.selector = X86_SEL_CS16; seg_cs16.type = 11; seg_cs16.base = 0; seg_cs16.limit = 0xfffff; seg_cs16.present = 1; seg_cs16.dpl = 0; seg_cs16.s = 1; seg_cs16.g = 0; seg_cs16.db = 0; seg_cs16.l = 0; struct kvm_segment seg_ds16 = seg_cs16; seg_ds16.selector = X86_SEL_DS16; seg_ds16.type = 3; struct kvm_segment seg_cs16_cpl3 = seg_cs16; seg_cs16_cpl3.selector = X86_SEL_CS16_CPL3; seg_cs16_cpl3.dpl = 3; struct kvm_segment seg_ds16_cpl3 = seg_ds16; seg_ds16_cpl3.selector = X86_SEL_DS16_CPL3; seg_ds16_cpl3.dpl = 3; struct kvm_segment seg_cs32 = seg_cs16; seg_cs32.selector = X86_SEL_CS32; seg_cs32.db = 1; struct kvm_segment seg_ds32 = seg_ds16; seg_ds32.selector = X86_SEL_DS32; seg_ds32.db = 1; struct kvm_segment seg_cs32_cpl3 = seg_cs32; seg_cs32_cpl3.selector = X86_SEL_CS32_CPL3; seg_cs32_cpl3.dpl = 3; struct kvm_segment seg_ds32_cpl3 = seg_ds32; seg_ds32_cpl3.selector = X86_SEL_DS32_CPL3; seg_ds32_cpl3.dpl = 3; struct kvm_segment seg_cs64 = seg_cs16; seg_cs64.selector = X86_SEL_CS64; seg_cs64.l = 1; struct kvm_segment seg_ds64 = seg_ds32; seg_ds64.selector = X86_SEL_DS64; struct kvm_segment seg_cs64_cpl3 = seg_cs64; seg_cs64_cpl3.selector = X86_SEL_CS64_CPL3; seg_cs64_cpl3.dpl = 3; struct kvm_segment seg_ds64_cpl3 = seg_ds64; seg_ds64_cpl3.selector = X86_SEL_DS64_CPL3; seg_ds64_cpl3.dpl = 3; struct kvm_segment seg_tss32; memset(&seg_tss32, 0, sizeof(seg_tss32)); seg_tss32.selector = X86_SEL_TSS32; seg_tss32.type = 9; seg_tss32.base = X86_ADDR_VAR_TSS32; seg_tss32.limit = 0x1ff; seg_tss32.present = 1; seg_tss32.dpl = 0; seg_tss32.s = 0; seg_tss32.g = 0; seg_tss32.db = 0; seg_tss32.l = 0; struct kvm_segment seg_tss32_2 = seg_tss32; seg_tss32_2.selector = X86_SEL_TSS32_2; seg_tss32_2.base = X86_ADDR_VAR_TSS32_2; struct kvm_segment seg_tss32_cpl3 = seg_tss32; seg_tss32_cpl3.selector = X86_SEL_TSS32_CPL3; seg_tss32_cpl3.base = X86_ADDR_VAR_TSS32_CPL3; struct kvm_segment seg_tss32_vm86 = seg_tss32; seg_tss32_vm86.selector = X86_SEL_TSS32_VM86; seg_tss32_vm86.base = X86_ADDR_VAR_TSS32_VM86; struct kvm_segment seg_tss16 = seg_tss32; seg_tss16.selector = X86_SEL_TSS16; seg_tss16.base = X86_ADDR_VAR_TSS16; seg_tss16.limit = 0xff; seg_tss16.type = 1; struct kvm_segment seg_tss16_2 = seg_tss16; seg_tss16_2.selector = X86_SEL_TSS16_2; seg_tss16_2.base = X86_ADDR_VAR_TSS16_2; seg_tss16_2.dpl = 0; struct kvm_segment seg_tss16_cpl3 = seg_tss16; seg_tss16_cpl3.selector = X86_SEL_TSS16_CPL3; seg_tss16_cpl3.base = X86_ADDR_VAR_TSS16_CPL3; seg_tss16_cpl3.dpl = 3; struct kvm_segment seg_tss64 = seg_tss32; seg_tss64.selector = X86_SEL_TSS64; seg_tss64.base = X86_ADDR_VAR_TSS64; seg_tss64.limit = 0x1ff; struct kvm_segment seg_tss64_cpl3 = seg_tss64; seg_tss64_cpl3.selector = X86_SEL_TSS64_CPL3; seg_tss64_cpl3.base = X86_ADDR_VAR_TSS64_CPL3; seg_tss64_cpl3.dpl = 3; struct kvm_segment seg_cgate16; memset(&seg_cgate16, 0, sizeof(seg_cgate16)); seg_cgate16.selector = X86_SEL_CGATE16; seg_cgate16.type = 4; seg_cgate16.base = X86_SEL_CS16 | (2 << 16); seg_cgate16.limit = X86_ADDR_VAR_USER_CODE2; seg_cgate16.present = 1; seg_cgate16.dpl = 0; seg_cgate16.s = 0; seg_cgate16.g = 0; seg_cgate16.db = 0; seg_cgate16.l = 0; seg_cgate16.avl = 0; struct kvm_segment seg_tgate16 = seg_cgate16; seg_tgate16.selector = X86_SEL_TGATE16; seg_tgate16.type = 3; seg_cgate16.base = X86_SEL_TSS16_2; seg_tgate16.limit = 0; struct kvm_segment seg_cgate32 = seg_cgate16; seg_cgate32.selector = X86_SEL_CGATE32; seg_cgate32.type = 12; seg_cgate32.base = X86_SEL_CS32 | (2 << 16); struct kvm_segment seg_tgate32 = seg_cgate32; seg_tgate32.selector = X86_SEL_TGATE32; seg_tgate32.type = 11; seg_tgate32.base = X86_SEL_TSS32_2; seg_tgate32.limit = 0; struct kvm_segment seg_cgate64 = seg_cgate16; seg_cgate64.selector = X86_SEL_CGATE64; seg_cgate64.type = 12; seg_cgate64.base = X86_SEL_CS64; int kvmfd = open("/dev/kvm", O_RDWR); char buf[sizeof(struct kvm_cpuid2) + 128 * sizeof(struct kvm_cpuid_entry2)]; memset(buf, 0, sizeof(buf)); struct kvm_cpuid2* cpuid = (struct kvm_cpuid2*)buf; cpuid->nent = 128; ioctl(kvmfd, KVM_GET_SUPPORTED_CPUID, cpuid); ioctl(cpufd, KVM_SET_CPUID2, cpuid); close(kvmfd); const char* text_prefix = 0; int text_prefix_size = 0; char* host_text = host_mem + X86_ADDR_TEXT; if (text_type == 8) { if (flags & KVM_SETUP_SMM) { if (flags & KVM_SETUP_PROTECTED) { sregs.cs = seg_cs16; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds16; sregs.cr0 |= X86_CR0_PE; } else { sregs.cs.selector = 0; sregs.cs.base = 0; } *(host_mem + X86_ADDR_TEXT) = 0xf4; host_text = host_mem + 0x8000; ioctl(cpufd, KVM_SMI, 0); } else if (flags & KVM_SETUP_VIRT86) { sregs.cs = seg_cs32; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32; sregs.cr0 |= X86_CR0_PE; sregs.efer |= X86_EFER_SCE; setup_syscall_msrs(cpufd, X86_SEL_CS32, X86_SEL_CS32_CPL3); setup_32bit_idt(&sregs, host_mem, guest_mem); if (flags & KVM_SETUP_PAGING) { uint64_t pd_addr = guest_mem + X86_ADDR_PD; uint64_t* pd = (uint64_t*)(host_mem + X86_ADDR_PD); pd[0] = X86_PDE32_PRESENT | X86_PDE32_RW | X86_PDE32_USER | X86_PDE32_PS; sregs.cr3 = pd_addr; sregs.cr4 |= X86_CR4_PSE; text_prefix = kvm_asm32_paged_vm86; text_prefix_size = sizeof(kvm_asm32_paged_vm86) - 1; } else { text_prefix = kvm_asm32_vm86; text_prefix_size = sizeof(kvm_asm32_vm86) - 1; } } else { sregs.cs.selector = 0; sregs.cs.base = 0; } } else if (text_type == 16) { if (flags & KVM_SETUP_CPL3) { sregs.cs = seg_cs16; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds16; text_prefix = kvm_asm16_cpl3; text_prefix_size = sizeof(kvm_asm16_cpl3) - 1; } else { sregs.cr0 |= X86_CR0_PE; sregs.cs = seg_cs16; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds16; } } else if (text_type == 32) { sregs.cr0 |= X86_CR0_PE; sregs.efer |= X86_EFER_SCE; setup_syscall_msrs(cpufd, X86_SEL_CS32, X86_SEL_CS32_CPL3); setup_32bit_idt(&sregs, host_mem, guest_mem); if (flags & KVM_SETUP_SMM) { sregs.cs = seg_cs32; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32; *(host_mem + X86_ADDR_TEXT) = 0xf4; host_text = host_mem + 0x8000; ioctl(cpufd, KVM_SMI, 0); } else if (flags & KVM_SETUP_PAGING) { sregs.cs = seg_cs32; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32; uint64_t pd_addr = guest_mem + X86_ADDR_PD; uint64_t* pd = (uint64_t*)(host_mem + X86_ADDR_PD); pd[0] = X86_PDE32_PRESENT | X86_PDE32_RW | X86_PDE32_USER | X86_PDE32_PS; sregs.cr3 = pd_addr; sregs.cr4 |= X86_CR4_PSE; text_prefix = kvm_asm32_paged; text_prefix_size = sizeof(kvm_asm32_paged) - 1; } else if (flags & KVM_SETUP_CPL3) { sregs.cs = seg_cs32_cpl3; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32_cpl3; } else { sregs.cs = seg_cs32; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32; } } else { sregs.efer |= X86_EFER_LME | X86_EFER_SCE; sregs.cr0 |= X86_CR0_PE; setup_syscall_msrs(cpufd, X86_SEL_CS64, X86_SEL_CS64_CPL3); setup_64bit_idt(&sregs, host_mem, guest_mem); sregs.cs = seg_cs32; sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32; uint64_t pml4_addr = guest_mem + X86_ADDR_PML4; uint64_t* pml4 = (uint64_t*)(host_mem + X86_ADDR_PML4); uint64_t pdpt_addr = guest_mem + X86_ADDR_PDP; uint64_t* pdpt = (uint64_t*)(host_mem + X86_ADDR_PDP); uint64_t pd_addr = guest_mem + X86_ADDR_PD; uint64_t* pd = (uint64_t*)(host_mem + X86_ADDR_PD); pml4[0] = X86_PDE64_PRESENT | X86_PDE64_RW | X86_PDE64_USER | pdpt_addr; pdpt[0] = X86_PDE64_PRESENT | X86_PDE64_RW | X86_PDE64_USER | pd_addr; pd[0] = X86_PDE64_PRESENT | X86_PDE64_RW | X86_PDE64_USER | X86_PDE64_PS; sregs.cr3 = pml4_addr; sregs.cr4 |= X86_CR4_PAE; if (flags & KVM_SETUP_VM) { sregs.cr0 |= X86_CR0_NE; *((uint64_t*)(host_mem + X86_ADDR_VAR_VMXON_PTR)) = X86_ADDR_VAR_VMXON; *((uint64_t*)(host_mem + X86_ADDR_VAR_VMCS_PTR)) = X86_ADDR_VAR_VMCS; memcpy(host_mem + X86_ADDR_VAR_VMEXIT_CODE, kvm_asm64_vm_exit, sizeof(kvm_asm64_vm_exit) - 1); *((uint64_t*)(host_mem + X86_ADDR_VAR_VMEXIT_PTR)) = X86_ADDR_VAR_VMEXIT_CODE; text_prefix = kvm_asm64_init_vm; text_prefix_size = sizeof(kvm_asm64_init_vm) - 1; } else if (flags & KVM_SETUP_CPL3) { text_prefix = kvm_asm64_cpl3; text_prefix_size = sizeof(kvm_asm64_cpl3) - 1; } else { text_prefix = kvm_asm64_enable_long; text_prefix_size = sizeof(kvm_asm64_enable_long) - 1; } } struct tss16 tss16; memset(&tss16, 0, sizeof(tss16)); tss16.ss0 = tss16.ss1 = tss16.ss2 = X86_SEL_DS16; tss16.sp0 = tss16.sp1 = tss16.sp2 = X86_ADDR_STACK0; tss16.ip = X86_ADDR_VAR_USER_CODE2; tss16.flags = (1 << 1); tss16.cs = X86_SEL_CS16; tss16.es = tss16.ds = tss16.ss = X86_SEL_DS16; tss16.ldt = X86_SEL_LDT; struct tss16* tss16_addr = (struct tss16*)(host_mem + seg_tss16_2.base); memcpy(tss16_addr, &tss16, sizeof(tss16)); memset(&tss16, 0, sizeof(tss16)); tss16.ss0 = tss16.ss1 = tss16.ss2 = X86_SEL_DS16; tss16.sp0 = tss16.sp1 = tss16.sp2 = X86_ADDR_STACK0; tss16.ip = X86_ADDR_VAR_USER_CODE2; tss16.flags = (1 << 1); tss16.cs = X86_SEL_CS16_CPL3; tss16.es = tss16.ds = tss16.ss = X86_SEL_DS16_CPL3; tss16.ldt = X86_SEL_LDT; struct tss16* tss16_cpl3_addr = (struct tss16*)(host_mem + seg_tss16_cpl3.base); memcpy(tss16_cpl3_addr, &tss16, sizeof(tss16)); struct tss32 tss32; memset(&tss32, 0, sizeof(tss32)); tss32.ss0 = tss32.ss1 = tss32.ss2 = X86_SEL_DS32; tss32.sp0 = tss32.sp1 = tss32.sp2 = X86_ADDR_STACK0; tss32.ip = X86_ADDR_VAR_USER_CODE; tss32.flags = (1 << 1) | (1 << 17); tss32.ldt = X86_SEL_LDT; tss32.cr3 = sregs.cr3; tss32.io_bitmap = offsetof(struct tss32, io_bitmap); struct tss32* tss32_addr = (struct tss32*)(host_mem + seg_tss32_vm86.base); memcpy(tss32_addr, &tss32, sizeof(tss32)); memset(&tss32, 0, sizeof(tss32)); tss32.ss0 = tss32.ss1 = tss32.ss2 = X86_SEL_DS32; tss32.sp0 = tss32.sp1 = tss32.sp2 = X86_ADDR_STACK0; tss32.ip = X86_ADDR_VAR_USER_CODE; tss32.flags = (1 << 1); tss32.cr3 = sregs.cr3; tss32.es = tss32.ds = tss32.ss = tss32.gs = tss32.fs = X86_SEL_DS32; tss32.cs = X86_SEL_CS32; tss32.ldt = X86_SEL_LDT; tss32.cr3 = sregs.cr3; tss32.io_bitmap = offsetof(struct tss32, io_bitmap); struct tss32* tss32_cpl3_addr = (struct tss32*)(host_mem + seg_tss32_2.base); memcpy(tss32_cpl3_addr, &tss32, sizeof(tss32)); struct tss64 tss64; memset(&tss64, 0, sizeof(tss64)); tss64.rsp[0] = X86_ADDR_STACK0; tss64.rsp[1] = X86_ADDR_STACK0; tss64.rsp[2] = X86_ADDR_STACK0; tss64.io_bitmap = offsetof(struct tss64, io_bitmap); struct tss64* tss64_addr = (struct tss64*)(host_mem + seg_tss64.base); memcpy(tss64_addr, &tss64, sizeof(tss64)); memset(&tss64, 0, sizeof(tss64)); tss64.rsp[0] = X86_ADDR_STACK0; tss64.rsp[1] = X86_ADDR_STACK0; tss64.rsp[2] = X86_ADDR_STACK0; tss64.io_bitmap = offsetof(struct tss64, io_bitmap); struct tss64* tss64_cpl3_addr = (struct tss64*)(host_mem + seg_tss64_cpl3.base); memcpy(tss64_cpl3_addr, &tss64, sizeof(tss64)); if (text_size > 1000) text_size = 1000; if (text_prefix) { memcpy(host_text, text_prefix, text_prefix_size); void* patch = memmem(host_text, text_prefix_size, "\xde\xc0\xad\x0b", 4); if (patch) *((uint32_t*)patch) = guest_mem + X86_ADDR_TEXT + ((char*)patch - host_text) + 6; uint16_t magic = X86_PREFIX_SIZE; patch = memmem(host_text, text_prefix_size, &magic, sizeof(magic)); if (patch) *((uint16_t*)patch) = guest_mem + X86_ADDR_TEXT + text_prefix_size; } memcpy((void*)(host_text + text_prefix_size), text, text_size); *(host_text + text_prefix_size + text_size) = 0xf4; memcpy(host_mem + X86_ADDR_VAR_USER_CODE, text, text_size); *(host_mem + X86_ADDR_VAR_USER_CODE + text_size) = 0xf4; *(host_mem + X86_ADDR_VAR_HLT) = 0xf4; memcpy(host_mem + X86_ADDR_VAR_SYSRET, "\x0f\x07\xf4", 3); memcpy(host_mem + X86_ADDR_VAR_SYSEXIT, "\x0f\x35\xf4", 3); *(uint64_t*)(host_mem + X86_ADDR_VAR_VMWRITE_FLD) = 0; *(uint64_t*)(host_mem + X86_ADDR_VAR_VMWRITE_VAL) = 0; if (opt_count > 2) opt_count = 2; for (uintptr_t i = 0; i < opt_count; i++) { uint64_t typ = opt_array_ptr[i].typ; uint64_t val = opt_array_ptr[i].val; switch (typ % 9) { case 0: sregs.cr0 ^= val & (X86_CR0_MP | X86_CR0_EM | X86_CR0_ET | X86_CR0_NE | X86_CR0_WP | X86_CR0_AM | X86_CR0_NW | X86_CR0_CD); break; case 1: sregs.cr4 ^= val & (X86_CR4_VME | X86_CR4_PVI | X86_CR4_TSD | X86_CR4_DE | X86_CR4_MCE | X86_CR4_PGE | X86_CR4_PCE | X86_CR4_OSFXSR | X86_CR4_OSXMMEXCPT | X86_CR4_UMIP | X86_CR4_VMXE | X86_CR4_SMXE | X86_CR4_FSGSBASE | X86_CR4_PCIDE | X86_CR4_OSXSAVE | X86_CR4_SMEP | X86_CR4_SMAP | X86_CR4_PKE); break; case 2: sregs.efer ^= val & (X86_EFER_SCE | X86_EFER_NXE | X86_EFER_SVME | X86_EFER_LMSLE | X86_EFER_FFXSR | X86_EFER_TCE); break; case 3: val &= ((1 << 8) | (1 << 9) | (1 << 10) | (1 << 12) | (1 << 13) | (1 << 14) | (1 << 15) | (1 << 18) | (1 << 19) | (1 << 20) | (1 << 21)); regs.rflags ^= val; tss16_addr->flags ^= val; tss16_cpl3_addr->flags ^= val; tss32_addr->flags ^= val; tss32_cpl3_addr->flags ^= val; break; case 4: seg_cs16.type = val & 0xf; seg_cs32.type = val & 0xf; seg_cs64.type = val & 0xf; break; case 5: seg_cs16_cpl3.type = val & 0xf; seg_cs32_cpl3.type = val & 0xf; seg_cs64_cpl3.type = val & 0xf; break; case 6: seg_ds16.type = val & 0xf; seg_ds32.type = val & 0xf; seg_ds64.type = val & 0xf; break; case 7: seg_ds16_cpl3.type = val & 0xf; seg_ds32_cpl3.type = val & 0xf; seg_ds64_cpl3.type = val & 0xf; break; case 8: *(uint64_t*)(host_mem + X86_ADDR_VAR_VMWRITE_FLD) = (val & 0xffff); *(uint64_t*)(host_mem + X86_ADDR_VAR_VMWRITE_VAL) = (val >> 16); break; default: exit(1); } } regs.rflags |= 2; fill_segment_descriptor(gdt, ldt, &seg_ldt); fill_segment_descriptor(gdt, ldt, &seg_cs16); fill_segment_descriptor(gdt, ldt, &seg_ds16); fill_segment_descriptor(gdt, ldt, &seg_cs16_cpl3); fill_segment_descriptor(gdt, ldt, &seg_ds16_cpl3); fill_segment_descriptor(gdt, ldt, &seg_cs32); fill_segment_descriptor(gdt, ldt, &seg_ds32); fill_segment_descriptor(gdt, ldt, &seg_cs32_cpl3); fill_segment_descriptor(gdt, ldt, &seg_ds32_cpl3); fill_segment_descriptor(gdt, ldt, &seg_cs64); fill_segment_descriptor(gdt, ldt, &seg_ds64); fill_segment_descriptor(gdt, ldt, &seg_cs64_cpl3); fill_segment_descriptor(gdt, ldt, &seg_ds64_cpl3); fill_segment_descriptor(gdt, ldt, &seg_tss32); fill_segment_descriptor(gdt, ldt, &seg_tss32_2); fill_segment_descriptor(gdt, ldt, &seg_tss32_cpl3); fill_segment_descriptor(gdt, ldt, &seg_tss32_vm86); fill_segment_descriptor(gdt, ldt, &seg_tss16); fill_segment_descriptor(gdt, ldt, &seg_tss16_2); fill_segment_descriptor(gdt, ldt, &seg_tss16_cpl3); fill_segment_descriptor_dword(gdt, ldt, &seg_tss64); fill_segment_descriptor_dword(gdt, ldt, &seg_tss64_cpl3); fill_segment_descriptor(gdt, ldt, &seg_cgate16); fill_segment_descriptor(gdt, ldt, &seg_tgate16); fill_segment_descriptor(gdt, ldt, &seg_cgate32); fill_segment_descriptor(gdt, ldt, &seg_tgate32); fill_segment_descriptor_dword(gdt, ldt, &seg_cgate64); if (ioctl(cpufd, KVM_SET_SREGS, &sregs)) return -1; if (ioctl(cpufd, KVM_SET_REGS, ®s)) return -1; return 0; } #define RFLAGS_1_BIT (1ULL << 1) #define RFLAGS_IF_BIT (1ULL << 9) static void reset_cpu_regs(int cpufd, int cpu_id, size_t text_size) { struct kvm_regs regs; memset(®s, 0, sizeof(regs)); regs.rflags |= RFLAGS_1_BIT | RFLAGS_IF_BIT; regs.rip = executor_fn_guest_addr(guest_main); regs.rsp = X86_SYZOS_ADDR_STACK0; regs.rdi = text_size; regs.rsi = cpu_id; ioctl(cpufd, KVM_SET_REGS, ®s); } static void install_user_code(struct kvm_syz_vm* vm, int cpufd, int cpu_id, const void* text, size_t text_size) { if ((cpu_id < 0) || (cpu_id >= KVM_MAX_VCPU)) return; if (text_size > KVM_PAGE_SIZE) text_size = KVM_PAGE_SIZE; void* target = (void*)((uint64_t)vm->user_text + (KVM_PAGE_SIZE * cpu_id)); memcpy(target, text, text_size); setup_gdt_ldt_pg(vm, cpufd); setup_cpuid(cpufd); reset_cpu_regs(cpufd, cpu_id, text_size); } struct addr_size { void* addr; size_t size; }; static struct addr_size alloc_guest_mem(struct addr_size* free, size_t size) { struct addr_size ret = {.addr = NULL, .size = 0}; if (free->size < size) return ret; ret.addr = free->addr; ret.size = size; free->addr = (void*)((char*)free->addr + size); free->size -= size; return ret; } static void vm_set_user_memory_region(int vmfd, uint32_t slot, uint32_t flags, uint64_t guest_phys_addr, uint64_t memory_size, uint64_t userspace_addr) { struct kvm_userspace_memory_region memreg; memreg.slot = slot; memreg.flags = flags; memreg.guest_phys_addr = guest_phys_addr; memreg.memory_size = memory_size; memreg.userspace_addr = userspace_addr; ioctl(vmfd, KVM_SET_USER_MEMORY_REGION, &memreg); } static void install_syzos_code(void* host_mem, size_t mem_size) { size_t size = (char*)&__stop_guest - (char*)&__start_guest; if (size > mem_size) exit(1); memcpy(host_mem, &__start_guest, size); } static void setup_vm(int vmfd, struct kvm_syz_vm* vm) { struct addr_size allocator = {.addr = vm->host_mem, .size = vm->total_pages * KVM_PAGE_SIZE}; int slot = 0; for (size_t i = 0; i < sizeof(syzos_mem_regions) / sizeof(syzos_mem_regions[0]); i++) { const struct mem_region* r = &syzos_mem_regions[i]; if (r->flags & MEM_REGION_FLAG_NO_HOST_MEM) continue; struct addr_size next = alloc_guest_mem(&allocator, r->pages * KVM_PAGE_SIZE); uint32_t flags = 0; if (r->flags & MEM_REGION_FLAG_DIRTY_LOG) flags |= KVM_MEM_LOG_DIRTY_PAGES; if (r->flags & MEM_REGION_FLAG_READONLY) flags |= KVM_MEM_READONLY; if (r->flags & MEM_REGION_FLAG_USER_CODE) vm->user_text = next.addr; if (r->flags & MEM_REGION_FLAG_GPA0) vm->gpa0_mem = next.addr; if (r->flags & MEM_REGION_FLAG_EXECUTOR_CODE) install_syzos_code(next.addr, next.size); vm_set_user_memory_region(vmfd, slot++, flags, r->gpa, next.size, (uintptr_t)next.addr); } struct addr_size next = alloc_guest_mem(&allocator, allocator.size); vm_set_user_memory_region(vmfd, slot++, 0, X86_SYZOS_ADDR_UNUSED, next.size, (uintptr_t)next.addr); } static long syz_kvm_setup_syzos_vm(volatile long a0, volatile long a1) { const int vmfd = a0; void* host_mem = (void*)a1; struct kvm_syz_vm* ret = (struct kvm_syz_vm*)host_mem; ret->host_mem = (void*)((uint64_t)host_mem + KVM_PAGE_SIZE); ret->total_pages = KVM_GUEST_PAGES - 1; setup_vm(vmfd, ret); ret->vmfd = vmfd; ret->next_cpu_id = 0; return (long)ret; } static long syz_kvm_add_vcpu(volatile long a0, volatile long a1) { struct kvm_syz_vm* vm = (struct kvm_syz_vm*)a0; struct kvm_text* utext = (struct kvm_text*)a1; const void* text = utext->text; size_t text_size = utext->size; if (!vm) { errno = EINVAL; return -1; } if (vm->next_cpu_id == KVM_MAX_VCPU) { errno = ENOMEM; return -1; } int cpu_id = vm->next_cpu_id; int cpufd = ioctl(vm->vmfd, KVM_CREATE_VCPU, cpu_id); if (cpufd == -1) return -1; vm->next_cpu_id++; install_user_code(vm, cpufd, cpu_id, text, text_size); return cpufd; } static void setup_gadgetfs(); static void setup_binderfs(); static void setup_fusectl(); static void sandbox_common_mount_tmpfs(void) { write_file("/proc/sys/fs/mount-max", "100000"); if (mkdir("./syz-tmp", 0777)) exit(1); if (mount("", "./syz-tmp", "tmpfs", 0, NULL)) exit(1); if (mkdir("./syz-tmp/newroot", 0777)) exit(1); if (mkdir("./syz-tmp/newroot/dev", 0700)) exit(1); unsigned bind_mount_flags = MS_BIND | MS_REC | MS_PRIVATE; if (mount("/dev", "./syz-tmp/newroot/dev", NULL, bind_mount_flags, NULL)) exit(1); if (mkdir("./syz-tmp/newroot/proc", 0700)) exit(1); if (mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL)) exit(1); if (mkdir("./syz-tmp/newroot/selinux", 0700)) exit(1); const char* selinux_path = "./syz-tmp/newroot/selinux"; if (mount("/selinux", selinux_path, NULL, bind_mount_flags, NULL)) { if (errno != ENOENT) exit(1); if (mount("/sys/fs/selinux", selinux_path, NULL, bind_mount_flags, NULL) && errno != ENOENT) exit(1); } if (mkdir("./syz-tmp/newroot/sys", 0700)) exit(1); if (mount("/sys", "./syz-tmp/newroot/sys", 0, bind_mount_flags, NULL)) exit(1); if (mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, bind_mount_flags, NULL) && errno != ENOENT) exit(1); if (mount("/sys/fs/smackfs", "./syz-tmp/newroot/sys/fs/smackfs", NULL, bind_mount_flags, NULL) && errno != ENOENT) exit(1); if (mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, bind_mount_flags, NULL) && errno != ENOENT) exit(1); if (mkdir("./syz-tmp/newroot/syz-inputs", 0700)) exit(1); if (mount("/syz-inputs", "./syz-tmp/newroot/syz-inputs", NULL, bind_mount_flags | MS_RDONLY, NULL) && errno != ENOENT) exit(1); if (mkdir("./syz-tmp/pivot", 0777)) exit(1); if (syscall(SYS_pivot_root, "./syz-tmp", "./syz-tmp/pivot")) { if (chdir("./syz-tmp")) exit(1); } else { if (chdir("/")) exit(1); if (umount2("./pivot", MNT_DETACH)) exit(1); } if (chroot("./newroot")) exit(1); if (chdir("/")) exit(1); setup_gadgetfs(); setup_binderfs(); setup_fusectl(); } static void setup_gadgetfs() { if (mkdir("/dev/gadgetfs", 0777)) { } if (mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL)) { } } static void setup_fusectl() { if (mount(0, "/sys/fs/fuse/connections", "fusectl", 0, 0)) { } } static void setup_binderfs() { if (mkdir("/dev/binderfs", 0777)) { } if (mount("binder", "/dev/binderfs", "binder", 0, NULL)) { } } static void loop(); static void sandbox_common() { prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0); if (getppid() == 1) exit(1); int netns = open("/proc/self/ns/net", O_RDONLY); if (netns == -1) exit(1); if (dup2(netns, kInitNetNsFd) < 0) exit(1); close(netns); struct rlimit rlim; rlim.rlim_cur = rlim.rlim_max = (200 << 20); setrlimit(RLIMIT_AS, &rlim); rlim.rlim_cur = rlim.rlim_max = 32 << 20; setrlimit(RLIMIT_MEMLOCK, &rlim); rlim.rlim_cur = rlim.rlim_max = 136 << 20; setrlimit(RLIMIT_FSIZE, &rlim); rlim.rlim_cur = rlim.rlim_max = 1 << 20; setrlimit(RLIMIT_STACK, &rlim); rlim.rlim_cur = rlim.rlim_max = 128 << 20; setrlimit(RLIMIT_CORE, &rlim); rlim.rlim_cur = rlim.rlim_max = 256; setrlimit(RLIMIT_NOFILE, &rlim); if (unshare(CLONE_NEWNS)) { } if (mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, NULL)) { } if (unshare(CLONE_NEWIPC)) { } if (unshare(0x02000000)) { } if (unshare(CLONE_NEWUTS)) { } if (unshare(CLONE_SYSVSEM)) { } typedef struct { const char* name; const char* value; } sysctl_t; static const sysctl_t sysctls[] = { {"/proc/sys/kernel/shmmax", "16777216"}, {"/proc/sys/kernel/shmall", "536870912"}, {"/proc/sys/kernel/shmmni", "1024"}, {"/proc/sys/kernel/msgmax", "8192"}, {"/proc/sys/kernel/msgmni", "1024"}, {"/proc/sys/kernel/msgmnb", "1024"}, {"/proc/sys/kernel/sem", "1024 1048576 500 1024"}, }; unsigned i; for (i = 0; i < sizeof(sysctls) / sizeof(sysctls[0]); i++) write_file(sysctls[i].name, sysctls[i].value); } static int wait_for_loop(int pid) { if (pid < 0) exit(1); int status = 0; while (waitpid(-1, &status, __WALL) != pid) { } return WEXITSTATUS(status); } static void drop_caps(void) { struct __user_cap_header_struct cap_hdr = {}; struct __user_cap_data_struct cap_data[2] = {}; cap_hdr.version = _LINUX_CAPABILITY_VERSION_3; cap_hdr.pid = getpid(); if (syscall(SYS_capget, &cap_hdr, &cap_data)) exit(1); const int drop = (1 << CAP_SYS_PTRACE) | (1 << CAP_SYS_NICE); cap_data[0].effective &= ~drop; cap_data[0].permitted &= ~drop; cap_data[0].inheritable &= ~drop; if (syscall(SYS_capset, &cap_hdr, &cap_data)) exit(1); } static int do_sandbox_none(void) { if (unshare(CLONE_NEWPID)) { } int pid = fork(); if (pid != 0) return wait_for_loop(pid); sandbox_common(); drop_caps(); if (unshare(CLONE_NEWNET)) { } write_file("/proc/sys/net/ipv4/ping_group_range", "0 65535"); sandbox_common_mount_tmpfs(); loop(); exit(1); } #define FS_IOC_SETFLAGS _IOW('f', 2, long) static void remove_dir(const char* dir) { int iter = 0; DIR* dp = 0; const int umount_flags = MNT_FORCE | UMOUNT_NOFOLLOW; retry: while (umount2(dir, umount_flags) == 0) { } dp = opendir(dir); if (dp == NULL) { if (errno == EMFILE) { exit(1); } exit(1); } struct dirent* ep = 0; while ((ep = readdir(dp))) { if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0) continue; char filename[FILENAME_MAX]; snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name); while (umount2(filename, umount_flags) == 0) { } struct stat st; if (lstat(filename, &st)) exit(1); if (S_ISDIR(st.st_mode)) { remove_dir(filename); continue; } int i; for (i = 0;; i++) { if (unlink(filename) == 0) break; if (errno == EPERM) { int fd = open(filename, O_RDONLY); if (fd != -1) { long flags = 0; if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) { } close(fd); continue; } } if (errno == EROFS) { break; } if (errno != EBUSY || i > 100) exit(1); if (umount2(filename, umount_flags)) exit(1); } } closedir(dp); for (int i = 0;; i++) { if (rmdir(dir) == 0) break; if (i < 100) { if (errno == EPERM) { int fd = open(dir, O_RDONLY); if (fd != -1) { long flags = 0; if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) { } close(fd); continue; } } if (errno == EROFS) { break; } if (errno == EBUSY) { if (umount2(dir, umount_flags)) exit(1); continue; } if (errno == ENOTEMPTY) { if (iter < 100) { iter++; goto retry; } } } exit(1); } } static int inject_fault(int nth) { int fd; fd = open("/proc/thread-self/fail-nth", O_RDWR); if (fd == -1) exit(1); char buf[16]; sprintf(buf, "%d", nth); if (write(fd, buf, strlen(buf)) != (ssize_t)strlen(buf)) exit(1); return fd; } static void kill_and_wait(int pid, int* status) { kill(-pid, SIGKILL); kill(pid, SIGKILL); for (int i = 0; i < 100; i++) { if (waitpid(-1, status, WNOHANG | __WALL) == pid) return; usleep(1000); } DIR* dir = opendir("/sys/fs/fuse/connections"); if (dir) { for (;;) { struct dirent* ent = readdir(dir); if (!ent) break; if (strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0) continue; char abort[300]; snprintf(abort, sizeof(abort), "/sys/fs/fuse/connections/%s/abort", ent->d_name); int fd = open(abort, O_WRONLY); if (fd == -1) { continue; } if (write(fd, abort, 1) < 0) { } close(fd); } closedir(dir); } else { } while (waitpid(-1, status, __WALL) != pid) { } } static void reset_loop() { char buf[64]; snprintf(buf, sizeof(buf), "/dev/loop%llu", procid); int loopfd = open(buf, O_RDWR); if (loopfd != -1) { ioctl(loopfd, LOOP_CLR_FD, 0); close(loopfd); } } static void setup_test() { prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0); setpgrp(); write_file("/proc/self/oom_score_adj", "1000"); if (symlink("/dev/binderfs", "./binderfs")) { } } static const char* setup_fault() { int fd = open("/proc/self/make-it-fail", O_WRONLY); if (fd == -1) return "CONFIG_FAULT_INJECTION is not enabled"; close(fd); fd = open("/proc/thread-self/fail-nth", O_WRONLY); if (fd == -1) return "kernel does not have systematic fault injection support"; close(fd); static struct { const char* file; const char* val; bool fatal; } files[] = { {"/sys/kernel/debug/failslab/ignore-gfp-wait", "N", true}, {"/sys/kernel/debug/fail_futex/ignore-private", "N", false}, {"/sys/kernel/debug/fail_page_alloc/ignore-gfp-highmem", "N", false}, {"/sys/kernel/debug/fail_page_alloc/ignore-gfp-wait", "N", false}, {"/sys/kernel/debug/fail_page_alloc/min-order", "0", false}, }; unsigned i; for (i = 0; i < sizeof(files) / sizeof(files[0]); i++) { if (!write_file(files[i].file, files[i].val)) { if (files[i].fatal) return "failed to write fault injection file"; } } return NULL; } static const char* setup_kcsan() { if (!write_file("/sys/kernel/debug/kcsan", "on")) return "write(/sys/kernel/debug/kcsan, on) failed"; return NULL; } #define FUSE_MIN_READ_BUFFER 8192 enum fuse_opcode { FUSE_LOOKUP = 1, FUSE_FORGET = 2, FUSE_GETATTR = 3, FUSE_SETATTR = 4, FUSE_READLINK = 5, FUSE_SYMLINK = 6, FUSE_MKNOD = 8, FUSE_MKDIR = 9, FUSE_UNLINK = 10, FUSE_RMDIR = 11, FUSE_RENAME = 12, FUSE_LINK = 13, FUSE_OPEN = 14, FUSE_READ = 15, FUSE_WRITE = 16, FUSE_STATFS = 17, FUSE_RELEASE = 18, FUSE_FSYNC = 20, FUSE_SETXATTR = 21, FUSE_GETXATTR = 22, FUSE_LISTXATTR = 23, FUSE_REMOVEXATTR = 24, FUSE_FLUSH = 25, FUSE_INIT = 26, FUSE_OPENDIR = 27, FUSE_READDIR = 28, FUSE_RELEASEDIR = 29, FUSE_FSYNCDIR = 30, FUSE_GETLK = 31, FUSE_SETLK = 32, FUSE_SETLKW = 33, FUSE_ACCESS = 34, FUSE_CREATE = 35, FUSE_INTERRUPT = 36, FUSE_BMAP = 37, FUSE_DESTROY = 38, FUSE_IOCTL = 39, FUSE_POLL = 40, FUSE_NOTIFY_REPLY = 41, FUSE_BATCH_FORGET = 42, FUSE_FALLOCATE = 43, FUSE_READDIRPLUS = 44, FUSE_RENAME2 = 45, FUSE_LSEEK = 46, FUSE_COPY_FILE_RANGE = 47, FUSE_SETUPMAPPING = 48, FUSE_REMOVEMAPPING = 49, FUSE_SYNCFS = 50, FUSE_TMPFILE = 51, FUSE_STATX = 52, CUSE_INIT = 4096, CUSE_INIT_BSWAP_RESERVED = 1048576, FUSE_INIT_BSWAP_RESERVED = 436207616, }; struct fuse_in_header { uint32_t len; uint32_t opcode; uint64_t unique; uint64_t nodeid; uint32_t uid; uint32_t gid; uint32_t pid; uint32_t padding; }; struct fuse_out_header { uint32_t len; uint32_t error; uint64_t unique; }; struct syz_fuse_req_out { struct fuse_out_header* init; struct fuse_out_header* lseek; struct fuse_out_header* bmap; struct fuse_out_header* poll; struct fuse_out_header* getxattr; struct fuse_out_header* lk; struct fuse_out_header* statfs; struct fuse_out_header* write; struct fuse_out_header* read; struct fuse_out_header* open; struct fuse_out_header* attr; struct fuse_out_header* entry; struct fuse_out_header* dirent; struct fuse_out_header* direntplus; struct fuse_out_header* create_open; struct fuse_out_header* ioctl; struct fuse_out_header* statx; }; static int fuse_send_response(int fd, const struct fuse_in_header* in_hdr, struct fuse_out_header* out_hdr) { if (!out_hdr) { return -1; } out_hdr->unique = in_hdr->unique; if (write(fd, out_hdr, out_hdr->len) == -1) { return -1; } return 0; } static volatile long syz_fuse_handle_req(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { struct syz_fuse_req_out* req_out = (struct syz_fuse_req_out*)a3; struct fuse_out_header* out_hdr = NULL; char* buf = (char*)a1; int buf_len = (int)a2; int fd = (int)a0; if (!req_out) { return -1; } if (buf_len < FUSE_MIN_READ_BUFFER) { return -1; } int ret = read(fd, buf, buf_len); if (ret == -1) { return -1; } if ((size_t)ret < sizeof(struct fuse_in_header)) { return -1; } const struct fuse_in_header* in_hdr = (const struct fuse_in_header*)buf; if (in_hdr->len > (uint32_t)ret) { return -1; } switch (in_hdr->opcode) { case FUSE_GETATTR: case FUSE_SETATTR: out_hdr = req_out->attr; break; case FUSE_LOOKUP: case FUSE_SYMLINK: case FUSE_LINK: case FUSE_MKNOD: case FUSE_MKDIR: out_hdr = req_out->entry; break; case FUSE_OPEN: case FUSE_OPENDIR: out_hdr = req_out->open; break; case FUSE_STATFS: out_hdr = req_out->statfs; break; case FUSE_RMDIR: case FUSE_RENAME: case FUSE_RENAME2: case FUSE_FALLOCATE: case FUSE_SETXATTR: case FUSE_REMOVEXATTR: case FUSE_FSYNCDIR: case FUSE_FSYNC: case FUSE_SETLKW: case FUSE_SETLK: case FUSE_ACCESS: case FUSE_FLUSH: case FUSE_RELEASE: case FUSE_RELEASEDIR: case FUSE_UNLINK: case FUSE_DESTROY: out_hdr = req_out->init; if (!out_hdr) { return -1; } out_hdr->len = sizeof(struct fuse_out_header); break; case FUSE_READ: out_hdr = req_out->read; break; case FUSE_READDIR: out_hdr = req_out->dirent; break; case FUSE_READDIRPLUS: out_hdr = req_out->direntplus; break; case FUSE_INIT: out_hdr = req_out->init; break; case FUSE_LSEEK: out_hdr = req_out->lseek; break; case FUSE_GETLK: out_hdr = req_out->lk; break; case FUSE_BMAP: out_hdr = req_out->bmap; break; case FUSE_POLL: out_hdr = req_out->poll; break; case FUSE_GETXATTR: case FUSE_LISTXATTR: out_hdr = req_out->getxattr; break; case FUSE_WRITE: case FUSE_COPY_FILE_RANGE: out_hdr = req_out->write; break; case FUSE_FORGET: case FUSE_BATCH_FORGET: return 0; case FUSE_CREATE: out_hdr = req_out->create_open; break; case FUSE_IOCTL: out_hdr = req_out->ioctl; break; case FUSE_STATX: out_hdr = req_out->statx; break; default: return -1; } return fuse_send_response(fd, in_hdr, out_hdr); } #define HWSIM_ATTR_RX_RATE 5 #define HWSIM_ATTR_SIGNAL 6 #define HWSIM_ATTR_ADDR_RECEIVER 1 #define HWSIM_ATTR_FRAME 3 #define WIFI_MAX_INJECT_LEN 2048 static int hwsim_register_socket(struct nlmsg* nlmsg, int sock, int hwsim_family) { struct genlmsghdr genlhdr; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = HWSIM_CMD_REGISTER; netlink_init(nlmsg, hwsim_family, 0, &genlhdr, sizeof(genlhdr)); int err = netlink_send_ext(nlmsg, sock, 0, NULL, false); if (err < 0) { } return err; } static int hwsim_inject_frame(struct nlmsg* nlmsg, int sock, int hwsim_family, uint8_t* mac_addr, uint8_t* data, int len) { struct genlmsghdr genlhdr; uint32_t rx_rate = WIFI_DEFAULT_RX_RATE; uint32_t signal = WIFI_DEFAULT_SIGNAL; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = HWSIM_CMD_FRAME; netlink_init(nlmsg, hwsim_family, 0, &genlhdr, sizeof(genlhdr)); netlink_attr(nlmsg, HWSIM_ATTR_RX_RATE, &rx_rate, sizeof(rx_rate)); netlink_attr(nlmsg, HWSIM_ATTR_SIGNAL, &signal, sizeof(signal)); netlink_attr(nlmsg, HWSIM_ATTR_ADDR_RECEIVER, mac_addr, ETH_ALEN); netlink_attr(nlmsg, HWSIM_ATTR_FRAME, data, len); int err = netlink_send_ext(nlmsg, sock, 0, NULL, false); if (err < 0) { } return err; } static long syz_80211_inject_frame(volatile long a0, volatile long a1, volatile long a2) { uint8_t* mac_addr = (uint8_t*)a0; uint8_t* buf = (uint8_t*)a1; int buf_len = (int)a2; struct nlmsg tmp_msg; if (buf_len < 0 || buf_len > WIFI_MAX_INJECT_LEN) { return -1; } int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC); if (sock < 0) { return -1; } int hwsim_family_id = netlink_query_family_id(&tmp_msg, sock, "MAC80211_HWSIM", false); if (hwsim_family_id < 0) { close(sock); return -1; } int ret = hwsim_register_socket(&tmp_msg, sock, hwsim_family_id); if (ret < 0) { close(sock); return -1; } ret = hwsim_inject_frame(&tmp_msg, sock, hwsim_family_id, mac_addr, buf, buf_len); close(sock); if (ret < 0) { return -1; } return 0; } #define WIFI_MAX_SSID_LEN 32 #define WIFI_JOIN_IBSS_NO_SCAN 0 #define WIFI_JOIN_IBSS_BG_SCAN 1 #define WIFI_JOIN_IBSS_BG_NO_SCAN 2 static long syz_80211_join_ibss(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { char* interface = (char*)a0; uint8_t* ssid = (uint8_t*)a1; int ssid_len = (int)a2; int mode = (int)a3; struct nlmsg tmp_msg; uint8_t bssid[ETH_ALEN] = WIFI_IBSS_BSSID; if (ssid_len < 0 || ssid_len > WIFI_MAX_SSID_LEN) { return -1; } if (mode < 0 || mode > WIFI_JOIN_IBSS_BG_NO_SCAN) { return -1; } int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC); if (sock < 0) { return -1; } int nl80211_family_id = netlink_query_family_id(&tmp_msg, sock, "nl80211", false); if (nl80211_family_id < 0) { close(sock); return -1; } struct join_ibss_props ibss_props = { .wiphy_freq = WIFI_DEFAULT_FREQUENCY, .wiphy_freq_fixed = (mode == WIFI_JOIN_IBSS_NO_SCAN || mode == WIFI_JOIN_IBSS_BG_NO_SCAN), .mac = bssid, .ssid = ssid, .ssid_len = ssid_len}; int ret = nl80211_setup_ibss_interface(&tmp_msg, sock, nl80211_family_id, interface, &ibss_props, false); close(sock); if (ret < 0) { return -1; } if (mode == WIFI_JOIN_IBSS_NO_SCAN) { ret = await_ifla_operstate(&tmp_msg, interface, IF_OPER_UP, false); if (ret < 0) { return -1; } } return 0; } #define USLEEP_FORKED_CHILD (3 * 50 *1000) static long handle_clone_ret(long ret) { if (ret != 0) { return ret; } usleep(USLEEP_FORKED_CHILD); syscall(__NR_exit, 0); while (1) { } } static long syz_clone(volatile long flags, volatile long stack, volatile long stack_len, volatile long ptid, volatile long ctid, volatile long tls) { long sp = (stack + stack_len) & ~15; long ret = (long)syscall(__NR_clone, flags & ~CLONE_VM, sp, ptid, ctid, tls); return handle_clone_ret(ret); } #define MAX_CLONE_ARGS_BYTES 256 static long syz_clone3(volatile long a0, volatile long a1) { unsigned long copy_size = a1; if (copy_size < sizeof(uint64_t) || copy_size > MAX_CLONE_ARGS_BYTES) return -1; char clone_args[MAX_CLONE_ARGS_BYTES]; memcpy(&clone_args, (void*)a0, copy_size); uint64_t* flags = (uint64_t*)&clone_args; *flags &= ~CLONE_VM; return handle_clone_ret((long)syscall(__NR_clone3, &clone_args, copy_size)); } #define RESERVED_PKEY 15 static long syz_pkey_set(volatile long pkey, volatile long val) { if (pkey == RESERVED_PKEY) { errno = EINVAL; return -1; } uint32_t eax = 0; uint32_t ecx = 0; asm volatile("rdpkru" : "=a"(eax) : "c"(ecx) : "edx"); eax &= ~(3 << ((pkey % 16) * 2)); eax |= (val & 3) << ((pkey % 16) * 2); uint32_t edx = 0; asm volatile("wrpkru" ::"a"(eax), "c"(ecx), "d"(edx)); return 0; } static long syz_pidfd_open(volatile long pid, volatile long flags) { if (pid == 1) { pid = 0; } return syscall(__NR_pidfd_open, pid, flags); } struct thread_t { int created, call; event_t ready, done; }; static struct thread_t threads[16]; static void execute_call(int call); static int running; static void* thr(void* arg) { struct thread_t* th = (struct thread_t*)arg; for (;;) { event_wait(&th->ready); event_reset(&th->ready); execute_call(th->call); __atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED); event_set(&th->done); } return 0; } static void execute_one(void) { if (write(1, "executing program\n", sizeof("executing program\n") - 1)) { } int i, call, thread; for (call = 0; call < 63; call++) { for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0])); thread++) { struct thread_t* th = &threads[thread]; if (!th->created) { th->created = 1; event_init(&th->ready); event_init(&th->done); event_set(&th->done); thread_start(thr, th); } if (!event_isset(&th->done)) continue; event_reset(&th->done); th->call = call; __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED); event_set(&th->ready); if (call == 1) break; event_timedwait(&th->done, 50 + (call == 12 ? 500 : 0) + (call == 54 ? 3000 : 0) + (call == 55 ? 3000 : 0) + (call == 56 ? 3000 : 0) + (call == 57 ? 300 : 0) + (call == 58 ? 300 : 0) + (call == 59 ? 3000 : 0) + (call == 60 ? 300 : 0) + (call == 61 ? 300 : 0)); break; } } for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++) sleep_ms(1); } static void execute_one(void); #define WAIT_FLAGS __WALL static void loop(void) { int iter = 0; for (;; iter++) { char cwdbuf[32]; sprintf(cwdbuf, "./%d", iter); if (mkdir(cwdbuf, 0777)) exit(1); reset_loop(); int pid = fork(); if (pid < 0) exit(1); if (pid == 0) { if (chdir(cwdbuf)) exit(1); setup_test(); execute_one(); exit(0); } int status = 0; uint64_t start = current_time_ms(); for (;;) { sleep_ms(10); if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid) break; if (current_time_ms() - start < 5000) continue; kill_and_wait(pid, &status); break; } remove_dir(cwdbuf); } } uint64_t r[41] = {0xffffffffffffffff, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff}; void execute_call(int call) { intptr_t res = 0; switch (call) { case 0: memcpy((void*)0x200000000000, "/dev/ubi_ctrl\000", 14); inject_fault(1); res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x200000000000ul, /*flags=O_NOCTTY|O_NOATIME|O_DIRECT|O_APPEND|O_RDWR*/0x44502, /*mode=*/0); if (res != -1) r[0] = res; break; case 1: STORE_BY_BITMASK(uint8_t, , 0x200000000140, 0xa, 0, 7); STORE_BY_BITMASK(uint8_t, , 0x200000000140, 1, 7, 1); *(uint32_t*)0x200000000144 = 0xc5; *(uint32_t*)0x200000000148 = 1; *(uint64_t*)0x200000000150 = 0x200000000040; memcpy((void*)0x200000000040, "\xe1\xee\x87\xa8\xf7\x6c\x25\x7b\x75\xc1\x07\x3c\x70\x58\xbe\x82\xfe\x33\x62\xbb\xcc\xa5\x4d\xf5\x20\xd1\xca\x8f\xa9\x1b\x50\x81\x0f\x87\x6d\x1f\xab\x0a\x1c\xc2\x14\xc3\x5f\x4e\x26\x6e\x71\x64\x3d\x8c\x95\x98\x80\x87\xe4\x6a\x87\xc1\xa7\x15\xef\xfe\x06\x16\x9a\xb6\x5f\xa1\x8e\x54\x14\x40\x4f\x30\xc0\x00\x55\x61\x39\x7e\xd1\xd9\x55\x7c\x66\xa9\x94\xb9\x54\xef\xa7\x14\x98\x5a\x2a\xe4\x09\xdf\x81\x11\xfa\x8a\x36\x14\x08\x73\x4d\x15\xb3\x0c\xd9\xab\x3f\xa5\x0e\x08\x8b\x3d\x2b\xaf\xdc\x68\x9e\xa3\xcb\x7e\x52\xa9\xfc\x7f\x5d\x48\xd2\x45\xd4\x09\x7b\xb9\x33\x72\x5b\xd9\xe2\x93\x71\xcd\x77\x80\xb4\xec\x8d\x6e\x2d\xbf\x86\x1a\xad\x04\xd6\x59\x4f\x5e\xbd\x2f\xfa\xb1\xe8\xa6\x8c\x51\x57\xca\xe2\xf4\x6f\x6f\xa3\xae\xac\x0e\x3f\x8b\x7b\x97\x63\x0f\x34\x6b\xc3\x27\x6e\x53\xca\x72\xb4\x17\xf8", 197); syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0xc0185502, /*arg=*/0x200000000140ul); break; case 2: *(uint8_t*)0x200000000180 = 4; *(uint8_t*)0x200000000181 = 9; syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x4002f516, /*arg=*/0x200000000180ul); for (int i = 0; i < 4; i++) { syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x4002f516, /*arg=*/0x200000000180ul); } break; case 3: *(uint32_t*)0x2000000001c0 = -1; syscall(__NR_setsockopt, /*fd=*/r[0], /*level=*/6, /*optname=*/0x13, /*optval=*/0x2000000001c0ul, /*optlen=*/4ul); break; case 4: *(uint32_t*)0x200000000200 = 4; *(uint16_t*)0x200000000208 = 0xa; *(uint16_t*)0x20000000020a = htobe16(0x4e20); *(uint32_t*)0x20000000020c = htobe32(4); *(uint8_t*)0x200000000210 = 0xfc; *(uint8_t*)0x200000000211 = 0; memset((void*)0x200000000212, 0, 13); *(uint8_t*)0x20000000021f = 1; *(uint32_t*)0x200000000220 = 0; *(uint16_t*)0x200000000288 = 0xa; *(uint16_t*)0x20000000028a = htobe16(0x4e21); *(uint32_t*)0x20000000028c = htobe32(1); *(uint8_t*)0x200000000290 = 0xfe; *(uint8_t*)0x200000000291 = 0x80; memset((void*)0x200000000292, 0, 13); *(uint8_t*)0x20000000029f = 0xaa; *(uint32_t*)0x2000000002a0 = 9; syscall(__NR_setsockopt, /*fd=*/r[0], /*level=*/0x29, /*optname=MCAST_BLOCK_SOURCE*/0x2b, /*optval=*/0x200000000200ul, /*optlen=*/0x108ul); break; case 5: *(uint32_t*)0x200000000340 = 0x4b; memcpy((void*)0x200000000344, "\x0c\xbd\x83\x9a\x79\x58\x33\x77\x5d\x88\x69\x41\xba\x50\xa6\x62\xb8\x10\x8f\x94\x6a\xef\xdd\x5c\xb7\xb6\xeb\x3a\x78\xa0\x64\x73\xe5\x82\x89\xee\x95\x41\xad\x35\x45\x8f\xa9\xd6\xb6\x44\xbf\x56\xfd\xbb\xe1\xc4\x40\x04\x3f\x67\x9b\x3a\x03\xcf\x34\xcc\x05\xed\xc7\x36\xad\x84\x88\x52\xc6\x93\xb8\x9b\x55\x1c\xaa\xbf\x8c\xae\xdd\x7f\x8e\xe9\x80\x29\x49\x11\xc0\x2a\xcd\xb1\x10\x5f\x36\xe9\x73\x61\x6e\xb6\x09\x53\x5e\x68\xc8\xaf\xfb\x3c\x93\x5c\x76\x0f\x88\x5f\xa2\xa4\xb4\x83\x8d\x7d\xb0\x09\xe9\x19\xe5\xab\x59\x34\xb3\xb8\x5f\x8f\xf9\xe2\xaf\xc0\xa1\x86\xc9\xdc\xf9\xab\x5c\x9f\x6e\xb4\x56\x20\xdd\xbd\xa7\xe2\xa4\x67\x7a\x1e\x7c\x69\x4b\x3e\x00\xe3\x5a\x16\xd8\xe5\x25\x26\xd1\x35\x3b\xb0\xfd\x60\x7f\xa0\xf0\x7d\x45\x80\x81\x02\xe3\x8c\x66\xb6\xb5\xbf\xe0\x53\x03\x6b\x95\x6a\x96\x70\x1a\x8d\x02\x58\x8e\x7a\x7c\xc1\xf8\x4a\x3c\x0a\x3b\xa7\x80\xd5\xbb\x49\x4e\x86\x01\x75\x98\x9a\xb6\xec\x07\xd1\x35\x33\x71\x5c\xfb\x45\x84\xfd\x2a\x81\x86\xd7\x4b\xb7\x40\x17\x20\x6d\x94\x0f\x25\xfa\x7e\xc2\xde\xbe\x5a\x31\xcf\x5c\x23\x30", 256); syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x41045508, /*arg=*/0x200000000340ul); break; case 6: *(uint64_t*)0x200000000580 = 0x200000000480; *(uint64_t*)0x200000000588 = 0x8000; *(uint32_t*)0x200000000590 = 0x1800; *(uint32_t*)0x200000000594 = 1; *(uint32_t*)0x200000000598 = 3; syscall(__NR_setsockopt, /*fd=*/r[0], /*level=*/0x11b, /*opt=*/4, /*val=*/0x200000000580ul, /*len=*/0x20ul); break; case 7: *(uint64_t*)0x2000000005c0 = 4; syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x127d, /*arg=*/0x2000000005c0ul); break; case 8: *(uint32_t*)0x200000000604 = 0; *(uint32_t*)0x200000000608 = r[0]; *(uint32_t*)0x20000000060c = 0; syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0xc01864c2, /*arg=*/0x200000000600ul); break; case 9: *(uint32_t*)0x2000000006c0 = 0; syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0xc00464c9, /*arg=*/0x2000000006c0ul); break; case 10: memset((void*)0x200000000000, 255, 6); STORE_BY_BITMASK(uint8_t, , 0x200000000040, 0, 0, 2); STORE_BY_BITMASK(uint8_t, , 0x200000000040, 2, 2, 2); STORE_BY_BITMASK(uint8_t, , 0x200000000040, 0xb, 4, 4); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 0, 0, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 1, 1, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 0, 2, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 1, 3, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 1, 4, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 0, 5, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 0, 6, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000041, 1, 7, 1); STORE_BY_BITMASK(uint16_t, , 0x200000000042, 2, 0, 15); STORE_BY_BITMASK(uint16_t, , 0x200000000043, 0, 7, 1); *(uint8_t*)0x200000000044 = 8; *(uint8_t*)0x200000000045 = 2; *(uint8_t*)0x200000000046 = 0x11; *(uint8_t*)0x200000000047 = 0; *(uint8_t*)0x200000000048 = 0; *(uint8_t*)0x200000000049 = 1; *(uint8_t*)0x20000000004a = 8; *(uint8_t*)0x20000000004b = 2; *(uint8_t*)0x20000000004c = 0x11; *(uint8_t*)0x20000000004d = 0; *(uint8_t*)0x20000000004e = 0; *(uint8_t*)0x20000000004f = 0; memset((void*)0x200000000050, 80, 6); STORE_BY_BITMASK(uint16_t, , 0x200000000056, 9, 0, 4); STORE_BY_BITMASK(uint16_t, , 0x200000000056, 0x5bb, 4, 12); STORE_BY_BITMASK(uint8_t, , 0x200000000058, 1, 0, 4); STORE_BY_BITMASK(uint8_t, , 0x200000000058, 1, 4, 1); STORE_BY_BITMASK(uint8_t, , 0x200000000058, 1, 5, 2); STORE_BY_BITMASK(uint8_t, , 0x200000000058, 1, 7, 1); *(uint8_t*)0x200000000059 = 9; STORE_BY_BITMASK(uint16_t, , 0x20000000005a, 0, 0, 1); STORE_BY_BITMASK(uint16_t, , 0x20000000005a, 2, 1, 15); STORE_BY_BITMASK(uint8_t, , 0x20000000005c, 0, 0, 2); STORE_BY_BITMASK(uint8_t, , 0x20000000005c, 0, 2, 2); STORE_BY_BITMASK(uint8_t, , 0x20000000005c, 0, 4, 2); STORE_BY_BITMASK(uint8_t, , 0x20000000005c, 3, 6, 2); STORE_BY_BITMASK(uint8_t, , 0x20000000005d, 0, 0, 1); STORE_BY_BITMASK(uint8_t, , 0x20000000005d, 0, 1, 5); STORE_BY_BITMASK(uint8_t, , 0x20000000005d, 1, 6, 1); STORE_BY_BITMASK(uint8_t, , 0x20000000005d, 0, 7, 1); memcpy((void*)0x20000000005e, "\x05\x5b\xa7\x19\x28\xa7\x9f\x86\x25\x94\x2b\x8e\x22\xa6\x2e\x7d\x0e\xf5\xd2\x6a\xfb\x59\x23\xf0\xa1", 25); syz_80211_inject_frame(/*mac_addr=*/0x200000000000, /*buf=*/0x200000000040, /*buf_len=*/0x37); break; case 11: memcpy((void*)0x200000000080, "wlan0\000", 6); memcpy((void*)0x2000000000c0, "\xf2\x0f\x01\x43\x92\x29\x17\x2e\xc7\x63\x7d\x66\xe2\xf0\x75", 15); syz_80211_join_ibss(/*interface=*/0x200000000080, /*ssid=*/0x2000000000c0, /*ssid_len=*/0xf, /*join_mode=JOIN_IBSS_BG_NO_SCAN*/2); break; case 12: memcpy((void*)0x200000000100, "bpf_lsm_inode_getsecurity\000", 26); syz_btf_id_by_name(/*name=*/0x200000000100); break; case 13: memcpy((void*)0x200000000140, "\xff\x42\x7f\x0e\x46\x59\xab\x58\x93\xd3\xba\xdb\x31\xb3\xb1\xb8\x9d\xa5\x2b\x0f\x3d\x34\x89\xa1\x8a\x58\x37\xba\x6e\x04\xf2\x1c\xf0\x58\x1d\xe7\x94\x6c\x2e\x29\xad\xef\x18\x03\x6a\x10\xce\x36\x12\x50\xa5\x66\x70\x64\xb4\xd4\x56\xc6\x4c\x30\x7d\x63\xcf\xe3\x42\x2c\x3f\xaf\xd4\x50\x31\x5e\x83\x66", 74); memcpy((void*)0x200000000240, "\xb2\x01\xd1\x39\xa4\x34\x4e\x46\x3d\x89\x91\x3b\xee\x9c\x68\xaf\x3f\x34\x09\x0b\x9f\x62\x44\xaf\x88\xc8\xfe\x07\xce\x4f\xfe\x9b\x81\x21\x0d\xa0\xfc\x44\x55\x9d\x98\x5a\xd5\xbb\x1d\xc9\x67\x2c\xe4\xd1\xdf\x55\x4a\xaf\xb7\x80\x53\xf4", 58); res = -1; res = syz_clone(/*flags=CLONE_PIDFD*/0x1000, /*stack=*/0x200000000140, /*stack_len=*/0x4a, /*parentid=*/0x2000000001c0, /*childtid=*/0x200000000200, /*tls=*/0x200000000240); if (res != -1) r[1] = res; break; case 14: *(uint64_t*)0x200000000440 = 0x100400; *(uint64_t*)0x200000000448 = 0x200000000280; *(uint64_t*)0x200000000450 = 0x2000000002c0; *(uint64_t*)0x200000000458 = 0x200000000300; *(uint32_t*)0x200000000460 = 0x2a; *(uint64_t*)0x200000000468 = 0x200000000340; *(uint64_t*)0x200000000470 = 0x15; *(uint64_t*)0x200000000478 = 0x200000000380; *(uint64_t*)0x200000000480 = 0x200000000400; *(uint32_t*)0x200000000400 = r[1]; *(uint64_t*)0x200000000488 = 1; *(uint32_t*)0x200000000490 = -1; res = -1; res = syz_clone3(/*args=*/0x200000000440, /*size=*/0x58); if (res != -1) { r[2] = res; r[3] = *(uint32_t*)0x200000000280; r[4] = *(uint32_t*)0x2000000002c0; r[5] = *(uint32_t*)0x200000000300; } break; case 15: memcpy((void*)0x2000000004c0, "./file0\000", 8); syz_create_resource(/*file=*/0x2000000004c0); break; case 16: memcpy((void*)0x200000000740, "/dev/cuse\000", 10); res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x200000000740ul, /*flags=*/2, /*mode=*/0); if (res != -1) r[6] = res; break; case 17: *(uint32_t*)0x200000002a80 = 7; *(uint32_t*)0x200000002a84 = 4; *(uint32_t*)0x200000002a88 = r[5]; *(uint32_t*)0x200000002a90 = 0; *(uint64_t*)0x200000002a98 = 0x100000000; *(uint64_t*)0x200000002aa0 = 3; res = syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0xc0286405, /*arg=*/0x200000002a80ul); if (res != -1) r[7] = *(uint32_t*)0x200000002a90; break; case 18: *(uint32_t*)0x200000002b80 = 1; *(uint32_t*)0x200000002b84 = 0; *(uint32_t*)0x200000002b88 = 0xee00; *(uint32_t*)0x200000002b8c = 5; *(uint32_t*)0x200000002b90 = 9; *(uint32_t*)0x200000002b94 = 0x8c; *(uint16_t*)0x200000002b98 = 6; *(uint32_t*)0x200000002b9c = 0xe0000; *(uint64_t*)0x200000002ba0 = 3; *(uint64_t*)0x200000002ba8 = 6; *(uint64_t*)0x200000002bb0 = 0x2c54; *(uint32_t*)0x200000002bb8 = 0x7fffffff; *(uint32_t*)0x200000002bbc = 5; *(uint16_t*)0x200000002bc0 = 3; *(uint16_t*)0x200000002bc2 = 0; *(uint64_t*)0x200000002bc8 = 0x200000002ac0; memcpy((void*)0x200000002ac0, "\x34\xd1\x45\x92\x33\x0d\x2e\xff\xe2\xb2\x42\xce\x1c\x79\xf9\x7a\x73\x7d\xc0\xf7\x74\x5d\x84\xee\xc4\x69\x04\x8b\xa4\x77\x2d\x3c\xa2\xf3\x4e\x3a\x83\xb5\xed\xad\xf6\x55\x0e\x5b\x41\x2c\xf5\xee\x74\x9b\x33\x24\xb3\x00\x32\xad\x2a\xe1\x4c\xfa\x29\xef\x4e\xcf\x97\x41\x6f\xdc\x53\xd7\x3b\xb8\x0e\xa1\x39\xaa\xc1\xbf\x36\x4d\xdc\xbe\x74\x09\x34\x21\x55\xae\x12\x6f\x63\xd9\xe3\xab\x1d\x51\x04\xbe\xfd\xd9", 100); *(uint64_t*)0x200000002bd0 = 0x200000002b40; memcpy((void*)0x200000002b40, "\xe5\x50\x41\x3c\x2f\x46\x9c\x9e\xf0\x8e\xb7\x19\x3b\x0a\x24\x2e\x58\xbe\xfe\x01\x2a\xa8\x9d\x7c", 24); res = syscall(__NR_shmctl, /*shmid=*/8, /*cmd=*/2ul, /*buf=*/0x200000002b80ul); if (res != -1) r[8] = *(uint32_t*)0x200000002b88; break; case 19: res = syscall(__NR_setfsuid, /*uid=*/0xee01); if (res != -1) r[9] = res; break; case 20: res = syscall(__NR_getuid); if (res != -1) r[10] = res; break; case 21: res = syscall(__NR_fstat, /*fd=*/r[3], /*statbuf=*/0x200000002ec0ul); if (res != -1) { r[11] = *(uint32_t*)0x200000002ed8; r[12] = *(uint32_t*)0x200000002edc; } break; case 22: *(uint32_t*)0x200000002f40 = 9; *(uint32_t*)0x200000002f44 = 6; *(uint32_t*)0x200000002f48 = -1; *(uint32_t*)0x200000002f50 = 0xee01; *(uint64_t*)0x200000002f58 = 9; *(uint64_t*)0x200000002f60 = 8; res = syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0xc0286405, /*arg=*/0x200000002f40ul); if (res != -1) r[13] = *(uint32_t*)0x200000002f50; break; case 23: *(uint64_t*)0x200000002f80 = 1; *(uint32_t*)0x200000002f88 = r[3]; *(uint32_t*)0x200000002f90 = r[3]; *(uint64_t*)0x200000002f98 = 0; *(uint64_t*)0x200000002fa0 = 0; memset((void*)0x200000002fa8, 0, 16); *(uint64_t*)0x200000002fb8 = 0x100; *(uint16_t*)0x200000002fc0 = 6; *(uint16_t*)0x200000002fc2 = 4; *(uint32_t*)0x200000002fc4 = 0; *(uint32_t*)0x200000002fc8 = 0xee01; *(uint32_t*)0x200000002fcc = 4; *(uint32_t*)0x200000002fd0 = 2; *(uint64_t*)0x200000002fd8 = 0xe78bc90; *(uint64_t*)0x200000002fe0 = 0x9e350; *(uint32_t*)0x200000002fe8 = 0x10; *(uint64_t*)0x200000002ff0 = 4; *(uint32_t*)0x200000002ff8 = 7; *(uint64_t*)0x200000003000 = 0x3a83; *(uint32_t*)0x200000003008 = 0x80000000; *(uint64_t*)0x200000003010 = 0xff; *(uint32_t*)0x200000003018 = 8; *(uint32_t*)0x20000000301c = 7; *(uint32_t*)0x200000003020 = 7; *(uint32_t*)0x200000003024 = 5; *(uint16_t*)0x200000003028 = 0xd275; *(uint16_t*)0x20000000302a = 6; *(uint16_t*)0x20000000302c = 1; *(uint16_t*)0x20000000302e = 0xff74; *(uint16_t*)0x200000003030 = 5; memset((void*)0x200000003032, 0, 2); *(uint32_t*)0x200000003034 = 0xf0e; *(uint32_t*)0x200000003038 = 0x400; *(uint16_t*)0x20000000303c = 2; *(uint16_t*)0x20000000303e = 0x8001; res = syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0xc0c0586d, /*arg=*/0x200000002f80ul); if (res != -1) { r[14] = *(uint32_t*)0x200000002f88; r[15] = *(uint32_t*)0x200000002f90; r[16] = *(uint32_t*)0x200000002fc8; } break; case 24: *(uint32_t*)0x2000000030c0 = 0x80; *(uint32_t*)0x2000000030c4 = 0; *(uint32_t*)0x2000000030c8 = 0xee01; *(uint32_t*)0x2000000030cc = 8; *(uint32_t*)0x2000000030d0 = 3; *(uint32_t*)0x2000000030d4 = 3; *(uint16_t*)0x2000000030d8 = 6; *(uint64_t*)0x2000000030e0 = 0x200000003040; *(uint8_t*)0x200000003040 = 0xf; *(uint64_t*)0x2000000030e8 = 0x200000003080; *(uint8_t*)0x200000003080 = 0x29; *(uint64_t*)0x2000000030f0 = 0xfffffffffffff801; *(uint64_t*)0x2000000030f8 = 0x6b4c; *(uint64_t*)0x200000003100 = 0; *(uint64_t*)0x200000003108 = 3; *(uint64_t*)0x200000003110 = 0x800; *(uint16_t*)0x200000003118 = 2; *(uint16_t*)0x20000000311a = 0xbf09; *(uint16_t*)0x20000000311c = 3; *(uint32_t*)0x200000003120 = r[2]; *(uint32_t*)0x200000003124 = r[4]; res = syscall(__NR_msgctl, /*msqid=*/2, /*cmd=*/0ul, /*buf=*/0x2000000030c0ul); if (res != -1) r[17] = *(uint32_t*)0x2000000030c4; break; case 25: *(uint32_t*)0x200000003140 = 0xb407; *(uint32_t*)0x200000003144 = 0xee01; *(uint64_t*)0x200000003148 = 8; *(uint64_t*)0x200000003150 = 8; res = syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0x4018aee2, /*arg=*/0x200000003140ul); if (res != -1) r[18] = *(uint32_t*)0x200000003144; break; case 26: memcpy((void*)0x200000003180, "./file0\000", 8); *(uint32_t*)0x2000000031c0 = 8; *(uint32_t*)0x2000000031c4 = 0xfffffffe; *(uint64_t*)0x2000000031c8 = 0; *(uint32_t*)0x2000000031d0 = 0xa; *(uint32_t*)0x2000000031d4 = 0; *(uint32_t*)0x2000000031d8 = 0xee00; *(uint16_t*)0x2000000031dc = 0xf; *(uint16_t*)0x2000000031de = 0x5d3e; *(uint64_t*)0x2000000031e0 = 5; *(uint64_t*)0x2000000031e8 = 0x10; *(uint64_t*)0x2000000031f0 = 0xff89; *(uint64_t*)0x2000000031f8 = 0x100; *(uint64_t*)0x200000003200 = 0xf; *(uint32_t*)0x200000003208 = 8; *(uint32_t*)0x20000000320c = 0; *(uint64_t*)0x200000003210 = 0xfff; *(uint32_t*)0x200000003218 = 2; *(uint32_t*)0x20000000321c = 0; *(uint64_t*)0x200000003220 = 3; *(uint32_t*)0x200000003228 = 0x7fff; *(uint32_t*)0x20000000322c = 0; *(uint64_t*)0x200000003230 = -1; *(uint32_t*)0x200000003238 = 9; *(uint32_t*)0x20000000323c = 0; *(uint32_t*)0x200000003240 = 0; *(uint32_t*)0x200000003244 = 3; *(uint32_t*)0x200000003248 = 7; *(uint32_t*)0x20000000324c = 0x8d6; *(uint64_t*)0x200000003250 = 0x383d; *(uint32_t*)0x200000003258 = 4; *(uint32_t*)0x20000000325c = 0xb0d4; *(uint64_t*)0x200000003260 = 0x503; *(uint32_t*)0x200000003268 = 2; *(uint32_t*)0x20000000326c = 0; *(uint32_t*)0x200000003270 = 5; *(uint32_t*)0x200000003274 = 2; *(uint64_t*)0x200000003278 = 0xfffffffffffffffb; *(uint64_t*)0x200000003280 = 0xff; *(uint64_t*)0x200000003288 = 3; *(uint64_t*)0x200000003290 = 0x259; *(uint64_t*)0x200000003298 = 0xbe9; *(uint64_t*)0x2000000032a0 = 0xff; *(uint64_t*)0x2000000032a8 = 6; *(uint64_t*)0x2000000032b0 = 0x800; *(uint64_t*)0x2000000032b8 = 9; res = syscall(__NR_statx, /*dfd=*/0xffffff9c, /*filename=*/0x200000003180ul, /*flags=*/4, /*mask=*/2, /*buffer=*/0x2000000031c0ul); if (res != -1) r[19] = *(uint32_t*)0x2000000031d4; break; case 27: *(uint32_t*)0x200000004300 = 5; *(uint32_t*)0x200000004304 = 0xee00; *(uint32_t*)0x200000004308 = 0xee00; *(uint32_t*)0x20000000430c = 3; *(uint32_t*)0x200000004310 = 0x7ff; *(uint32_t*)0x200000004314 = 2; *(uint16_t*)0x200000004318 = 5; *(uint32_t*)0x20000000431c = 2; *(uint64_t*)0x200000004320 = 0x401; *(uint64_t*)0x200000004328 = 3; *(uint64_t*)0x200000004330 = 0xfffffffffffffffe; *(uint32_t*)0x200000004338 = r[1]; *(uint32_t*)0x20000000433c = r[4]; *(uint16_t*)0x200000004340 = 0xfffe; *(uint16_t*)0x200000004342 = 0; *(uint64_t*)0x200000004348 = 0x2000000032c0; memcpy((void*)0x2000000032c0, 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4096); *(uint64_t*)0x200000004350 = 0x2000000042c0; memcpy((void*)0x2000000042c0, "\x14\xdc\x2c\x36\xc1\xa4\x73\x0f\x33\xf0\xa4\x77\x56\xb4\x37\x79\x2e\x9a\xc7\x8f\x74\x2f\x82\x1e\x32\x83\x41\xe0\x2b", 29); res = syscall(__NR_shmctl, /*shmid=*/3, /*cmd=*/1ul, /*buf=*/0x200000004300ul); if (res != -1) { r[20] = *(uint32_t*)0x200000004308; r[21] = *(uint32_t*)0x20000000433c; } break; case 28: memcpy((void*)0x200000004600, "./file0\000", 8); res = syscall(__NR_newfstatat, /*dfd=*/0xffffffffffffff9cul, /*file=*/0x200000004600ul, /*statbuf=*/0x200000004640ul, /*flag=*/0ul); if (res != -1) r[22] = *(uint32_t*)0x200000004658; break; case 29: res = syscall(__NR_fstat, /*fd=*/r[3], /*statbuf=*/0x2000000046c0ul); if (res != -1) { r[23] = *(uint32_t*)0x2000000046d8; r[24] = *(uint32_t*)0x2000000046dc; } break; case 30: *(uint32_t*)0x2000000058c0 = -1; *(uint32_t*)0x2000000058c4 = 0xee00; *(uint32_t*)0x2000000058c8 = -1; *(uint32_t*)0x2000000058cc = 2; *(uint32_t*)0x2000000058d0 = 9; *(uint32_t*)0x2000000058d4 = 2; *(uint16_t*)0x2000000058d8 = 4; *(uint32_t*)0x2000000058dc = 6; *(uint64_t*)0x2000000058e0 = 4; *(uint64_t*)0x2000000058e8 = 4; *(uint64_t*)0x2000000058f0 = 1; *(uint32_t*)0x2000000058f8 = 0; *(uint32_t*)0x2000000058fc = r[4]; *(uint16_t*)0x200000005900 = 0x40; *(uint16_t*)0x200000005902 = 0; *(uint64_t*)0x200000005908 = 0x200000004840; memcpy((void*)0x200000004840, "\xbe\x99\x9e\xee\x25\x89\x59\xe9\x3a\x2a\xa6\x8d\xc2\xcb\x1d\x93\xb8\x19\xd2\xb9\xd9\xe6\x78\xe2\xe2\x50\x6d\x54\x51\x0e\x92\x07\x28\xd7\x58\x15\xbb\x80\x27\xe6\xa0\x21\xfe\xbb\x8f\x09\x96\xf8\xad\xd6\x87\x7b\x74\xce\x5e\xac\xe7\x45\x04\xcf\x3a\x4f\x3a\xc4\x6a\x5a\x59\x40\x03\x42\x35\x19\x40\xbf\xb8\x76\x7d\xd9\x95\x5c\x9e\x9a\x99\x41", 84); *(uint64_t*)0x200000005910 = 0x2000000048c0; memcpy((void*)0x2000000048c0, 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4096); res = syscall(__NR_shmctl, /*shmid=*/0, /*cmd=*/7, /*buf=*/0x2000000058c0ul); if (res != -1) r[25] = *(uint32_t*)0x2000000058c4; break; case 31: memcpy((void*)0x200000005940, "./file0\000", 8); *(uint64_t*)0x200000005980 = 0x100000000; *(uint64_t*)0x200000005988 = 0x7d80; *(uint64_t*)0x200000005990 = 1; *(uint32_t*)0x200000005998 = 0x40; *(uint32_t*)0x20000000599c = -1; *(uint32_t*)0x2000000059a0 = 0; *(uint32_t*)0x2000000059a4 = 0; *(uint64_t*)0x2000000059a8 = 7; *(uint64_t*)0x2000000059b0 = 0xfffffffffffffffb; *(uint64_t*)0x2000000059b8 = 0; *(uint64_t*)0x2000000059c0 = 2; *(uint64_t*)0x2000000059c8 = 0xe6; *(uint64_t*)0x2000000059d0 = 2; *(uint64_t*)0x2000000059d8 = 4; *(uint64_t*)0x2000000059e0 = 0xa03f; *(uint64_t*)0x2000000059e8 = 0x10; *(uint64_t*)0x2000000059f0 = 7; memset((void*)0x2000000059f8, 0, 24); res = syscall(__NR_lstat, /*filename=*/0x200000005940ul, /*statbuf=*/0x200000005980ul); if (res != -1) { r[26] = *(uint32_t*)0x20000000599c; r[27] = *(uint32_t*)0x2000000059a0; } break; case 32: memcpy((void*)0x200000000780, 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8192); *(uint64_t*)0x200000005b80 = 0x200000002780; *(uint32_t*)0x200000002780 = 0x50; *(uint32_t*)0x200000002784 = 0xffffffda; *(uint64_t*)0x200000002788 = 7; *(uint32_t*)0x200000002790 = 7; *(uint32_t*)0x200000002794 = 0x2d; *(uint32_t*)0x200000002798 = 8; *(uint32_t*)0x20000000279c = 0x1020000; *(uint16_t*)0x2000000027a0 = 0xfffc; *(uint16_t*)0x2000000027a2 = 0x401; *(uint32_t*)0x2000000027a4 = 0x12; *(uint32_t*)0x2000000027a8 = 6; *(uint16_t*)0x2000000027ac = 0; *(uint16_t*)0x2000000027ae = 0; *(uint32_t*)0x2000000027b0 = 0x40; *(uint32_t*)0x2000000027b4 = 0xce; memset((void*)0x2000000027b8, 0, 24); *(uint64_t*)0x200000005b88 = 0x200000002800; *(uint32_t*)0x200000002800 = 0x18; *(uint32_t*)0x200000002804 = 0; *(uint64_t*)0x200000002808 = 6; *(uint64_t*)0x200000002810 = 0xbb; *(uint64_t*)0x200000005b90 = 0x200000002840; *(uint32_t*)0x200000002840 = 0x18; *(uint32_t*)0x200000002844 = 0; *(uint64_t*)0x200000002848 = 1; *(uint64_t*)0x200000002850 = 5; *(uint64_t*)0x200000005b98 = 0x200000002880; *(uint32_t*)0x200000002880 = 0x18; *(uint32_t*)0x200000002884 = 0xfffffff5; *(uint64_t*)0x200000002888 = 4; *(uint32_t*)0x200000002890 = 0; *(uint32_t*)0x200000002894 = 0; *(uint64_t*)0x200000005ba0 = 0x2000000028c0; *(uint32_t*)0x2000000028c0 = 0x18; *(uint32_t*)0x2000000028c4 = 0xfffffffe; *(uint64_t*)0x2000000028c8 = 3; *(uint32_t*)0x2000000028d0 = 7; *(uint32_t*)0x2000000028d4 = 0; *(uint64_t*)0x200000005ba8 = 0x200000002900; *(uint32_t*)0x200000002900 = 0x28; *(uint32_t*)0x200000002904 = 0; *(uint64_t*)0x200000002908 = 0x300000000000; *(uint64_t*)0x200000002910 = 1; *(uint64_t*)0x200000002918 = 8; *(uint32_t*)0x200000002920 = 0; *(uint32_t*)0x200000002924 = r[1]; *(uint64_t*)0x200000005bb0 = 0x200000002940; *(uint32_t*)0x200000002940 = 0x60; *(uint32_t*)0x200000002944 = 0; *(uint64_t*)0x200000002948 = 0xc; *(uint64_t*)0x200000002950 = 0; *(uint64_t*)0x200000002958 = 0xff; *(uint64_t*)0x200000002960 = 2; *(uint64_t*)0x200000002968 = 0x41; *(uint64_t*)0x200000002970 = 0x40; *(uint32_t*)0x200000002978 = 6; *(uint32_t*)0x20000000297c = 0x8dd; *(uint32_t*)0x200000002980 = 5; *(uint32_t*)0x200000002984 = 0; memset((void*)0x200000002988, 0, 24); *(uint64_t*)0x200000005bb8 = 0x2000000029c0; *(uint32_t*)0x2000000029c0 = 0x18; *(uint32_t*)0x2000000029c4 = 0xffffffda; *(uint64_t*)0x2000000029c8 = 9; *(uint32_t*)0x2000000029d0 = 5; *(uint32_t*)0x2000000029d4 = 0; *(uint64_t*)0x200000005bc0 = 0x200000002a00; *(uint32_t*)0x200000002a00 = 0x16; *(uint32_t*)0x200000002a04 = 0; *(uint64_t*)0x200000002a08 = 6; memset((void*)0x200000002a10, 255, 6); *(uint64_t*)0x200000005bc8 = 0x200000002a40; *(uint32_t*)0x200000002a40 = 0x20; *(uint32_t*)0x200000002a44 = 0; *(uint64_t*)0x200000002a48 = 0; *(uint64_t*)0x200000002a50 = 0; *(uint32_t*)0x200000002a58 = 0x1e; *(uint32_t*)0x200000002a5c = 0; *(uint64_t*)0x200000005bd0 = 0x200000002c00; *(uint32_t*)0x200000002c00 = 0x78; *(uint32_t*)0x200000002c04 = 0xfffffffe; *(uint64_t*)0x200000002c08 = 3; *(uint64_t*)0x200000002c10 = 8; *(uint32_t*)0x200000002c18 = 6; *(uint32_t*)0x200000002c1c = 0; *(uint64_t*)0x200000002c20 = 0; *(uint64_t*)0x200000002c28 = 8; *(uint64_t*)0x200000002c30 = 2; *(uint64_t*)0x200000002c38 = 8; *(uint64_t*)0x200000002c40 = 0x80; *(uint64_t*)0x200000002c48 = 5; *(uint32_t*)0x200000002c50 = 0x3482; *(uint32_t*)0x200000002c54 = 0xa246; *(uint32_t*)0x200000002c58 = 0x80000000; *(uint32_t*)0x200000002c5c = 0x4000; *(uint32_t*)0x200000002c60 = 0x3e08; *(uint32_t*)0x200000002c64 = r[7]; *(uint32_t*)0x200000002c68 = r[8]; *(uint32_t*)0x200000002c6c = 0x7f; *(uint32_t*)0x200000002c70 = 3; *(uint32_t*)0x200000002c74 = 0; *(uint64_t*)0x200000005bd8 = 0x200000002c80; *(uint32_t*)0x200000002c80 = 0x90; *(uint32_t*)0x200000002c84 = 0xffffffda; *(uint64_t*)0x200000002c88 = 2; *(uint64_t*)0x200000002c90 = 6; *(uint64_t*)0x200000002c98 = 0; *(uint64_t*)0x200000002ca0 = 2; *(uint64_t*)0x200000002ca8 = 8; *(uint32_t*)0x200000002cb0 = 0xfffffffc; *(uint32_t*)0x200000002cb4 = 9; *(uint64_t*)0x200000002cb8 = 1; *(uint64_t*)0x200000002cc0 = 3; *(uint64_t*)0x200000002cc8 = 2; *(uint64_t*)0x200000002cd0 = 5; *(uint64_t*)0x200000002cd8 = 0x761; *(uint64_t*)0x200000002ce0 = 7; *(uint32_t*)0x200000002ce8 = 0x58d95c3d; *(uint32_t*)0x200000002cec = 7; *(uint32_t*)0x200000002cf0 = 7; *(uint32_t*)0x200000002cf4 = 0x8000; *(uint32_t*)0x200000002cf8 = 8; *(uint32_t*)0x200000002cfc = r[9]; *(uint32_t*)0x200000002d00 = 0xee01; *(uint32_t*)0x200000002d04 = 0; *(uint32_t*)0x200000002d08 = 0x400; *(uint32_t*)0x200000002d0c = 0; *(uint64_t*)0x200000005be0 = 0x200000002d40; *(uint32_t*)0x200000002d40 = 0x158; *(uint32_t*)0x200000002d44 = 0; *(uint64_t*)0x200000002d48 = 0x8000000000000001; *(uint64_t*)0x200000002d50 = 0; *(uint64_t*)0x200000002d58 = 0; *(uint32_t*)0x200000002d60 = 0; *(uint32_t*)0x200000002d64 = 5; *(uint64_t*)0x200000002d68 = 2; *(uint64_t*)0x200000002d70 = 0x291; *(uint32_t*)0x200000002d78 = 3; *(uint32_t*)0x200000002d7c = 0; memcpy((void*)0x200000002d80, "a-$", 3); *(uint64_t*)0x200000002d88 = 6; *(uint64_t*)0x200000002d90 = 1; *(uint32_t*)0x200000002d98 = 0x1a; *(uint32_t*)0x200000002d9c = 0x5df9; memcpy((void*)0x200000002da0, "bpf_lsm_inode_getsecurity\000", 26); *(uint64_t*)0x200000002dc0 = 5; *(uint64_t*)0x200000002dc8 = 4; *(uint32_t*)0x200000002dd0 = 0; *(uint32_t*)0x200000002dd4 = 0; *(uint64_t*)0x200000002dd8 = 3; *(uint64_t*)0x200000002de0 = 2; *(uint32_t*)0x200000002de8 = 7; *(uint32_t*)0x200000002dec = 0x615d; memcpy((void*)0x200000002df0, "]F,[@%(", 7); *(uint64_t*)0x200000002df8 = 3; *(uint64_t*)0x200000002e00 = 4; *(uint32_t*)0x200000002e08 = 2; *(uint32_t*)0x200000002e0c = 5; memcpy((void*)0x200000002e10, "#*", 2); *(uint64_t*)0x200000002e18 = 6; *(uint64_t*)0x200000002e20 = 0xc; *(uint32_t*)0x200000002e28 = 1; *(uint32_t*)0x200000002e2c = 0x200; memset((void*)0x200000002e30, 33, 1); *(uint64_t*)0x200000002e38 = 2; *(uint64_t*)0x200000002e40 = 1; *(uint32_t*)0x200000002e48 = 3; *(uint32_t*)0x200000002e4c = 0xffff; memcpy((void*)0x200000002e50, "%[*", 3); *(uint64_t*)0x200000002e58 = 2; *(uint64_t*)0x200000002e60 = 1; *(uint32_t*)0x200000002e68 = 6; *(uint32_t*)0x200000002e6c = 0x10001; memset((void*)0x200000002e70, 187, 6); *(uint64_t*)0x200000002e78 = 2; *(uint64_t*)0x200000002e80 = 9; *(uint32_t*)0x200000002e88 = 3; *(uint32_t*)0x200000002e8c = 3; memcpy((void*)0x200000002e90, "\\$&", 3); *(uint64_t*)0x200000005be8 = 0x200000004380; *(uint32_t*)0x200000004380 = 0x280; *(uint32_t*)0x200000004384 = 0; *(uint64_t*)0x200000004388 = 7; *(uint64_t*)0x200000004390 = 1; *(uint64_t*)0x200000004398 = 2; *(uint64_t*)0x2000000043a0 = 0x9b; *(uint64_t*)0x2000000043a8 = 0xa; *(uint32_t*)0x2000000043b0 = 0x40; *(uint32_t*)0x2000000043b4 = 0x2b; *(uint64_t*)0x2000000043b8 = 1; *(uint64_t*)0x2000000043c0 = 0; *(uint64_t*)0x2000000043c8 = 0xf5; *(uint64_t*)0x2000000043d0 = 7; *(uint64_t*)0x2000000043d8 = 8; *(uint64_t*)0x2000000043e0 = 7; *(uint32_t*)0x2000000043e8 = 5; *(uint32_t*)0x2000000043ec = 9; *(uint32_t*)0x2000000043f0 = 0x1b; *(uint32_t*)0x2000000043f4 = 0xa000; *(uint32_t*)0x2000000043f8 = 4; *(uint32_t*)0x2000000043fc = r[10]; *(uint32_t*)0x200000004400 = r[12]; *(uint32_t*)0x200000004404 = 4; *(uint32_t*)0x200000004408 = 0x10000; *(uint32_t*)0x20000000440c = 0; *(uint64_t*)0x200000004410 = 4; *(uint64_t*)0x200000004418 = 6; *(uint32_t*)0x200000004420 = 0; *(uint32_t*)0x200000004424 = 0x7f; *(uint64_t*)0x200000004428 = 1; *(uint64_t*)0x200000004430 = 0; *(uint64_t*)0x200000004438 = 9; *(uint64_t*)0x200000004440 = 4; *(uint32_t*)0x200000004448 = 9; *(uint32_t*)0x20000000444c = 0x101; *(uint64_t*)0x200000004450 = 0; *(uint64_t*)0x200000004458 = 0x80; *(uint64_t*)0x200000004460 = 0x80000001; *(uint64_t*)0x200000004468 = 8; *(uint64_t*)0x200000004470 = 0x7fffffffffffffff; *(uint64_t*)0x200000004478 = 0xc14; *(uint32_t*)0x200000004480 = 7; *(uint32_t*)0x200000004484 = 2; *(uint32_t*)0x200000004488 = 5; *(uint32_t*)0x20000000448c = 0x1000; *(uint32_t*)0x200000004490 = 7; *(uint32_t*)0x200000004494 = r[13]; *(uint32_t*)0x200000004498 = r[16]; *(uint32_t*)0x20000000449c = 7; *(uint32_t*)0x2000000044a0 = 3; *(uint32_t*)0x2000000044a4 = 0; *(uint64_t*)0x2000000044a8 = 1; *(uint64_t*)0x2000000044b0 = 0x8000000000000000; *(uint32_t*)0x2000000044b8 = 0; *(uint32_t*)0x2000000044bc = 9; *(uint64_t*)0x2000000044c0 = 3; *(uint64_t*)0x2000000044c8 = 1; *(uint64_t*)0x2000000044d0 = 7; *(uint64_t*)0x2000000044d8 = 3; *(uint32_t*)0x2000000044e0 = 0x10000; *(uint32_t*)0x2000000044e4 = 0xfff; *(uint64_t*)0x2000000044e8 = 6; *(uint64_t*)0x2000000044f0 = 3; *(uint64_t*)0x2000000044f8 = 4; *(uint64_t*)0x200000004500 = 0xffffffff; *(uint64_t*)0x200000004508 = 5; *(uint64_t*)0x200000004510 = 1; *(uint32_t*)0x200000004518 = 0xcf; *(uint32_t*)0x20000000451c = 5; *(uint32_t*)0x200000004520 = 2; *(uint32_t*)0x200000004524 = 0x3000; *(uint32_t*)0x200000004528 = 0xf; *(uint32_t*)0x20000000452c = r[17]; *(uint32_t*)0x200000004530 = r[18]; *(uint32_t*)0x200000004534 = 0xdda; *(uint32_t*)0x200000004538 = 0x800; *(uint32_t*)0x20000000453c = 0; *(uint64_t*)0x200000004540 = 0; *(uint64_t*)0x200000004548 = 0x480; *(uint32_t*)0x200000004550 = 1; *(uint32_t*)0x200000004554 = 7; memset((void*)0x200000004558, 39, 1); *(uint64_t*)0x200000004560 = 3; *(uint64_t*)0x200000004568 = 0; *(uint64_t*)0x200000004570 = 6; *(uint64_t*)0x200000004578 = 6; *(uint32_t*)0x200000004580 = 0xae90; *(uint32_t*)0x200000004584 = 0x7fff; *(uint64_t*)0x200000004588 = 5; *(uint64_t*)0x200000004590 = 2; *(uint64_t*)0x200000004598 = 0xffff; *(uint64_t*)0x2000000045a0 = 0xb6; *(uint64_t*)0x2000000045a8 = 9; *(uint64_t*)0x2000000045b0 = 8; *(uint32_t*)0x2000000045b8 = 0x200; *(uint32_t*)0x2000000045bc = 3; *(uint32_t*)0x2000000045c0 = 6; *(uint32_t*)0x2000000045c4 = 0x6000; *(uint32_t*)0x2000000045c8 = 0xfffffff7; *(uint32_t*)0x2000000045cc = r[19]; *(uint32_t*)0x2000000045d0 = r[20]; *(uint32_t*)0x2000000045d4 = 4; *(uint32_t*)0x2000000045d8 = 6; *(uint32_t*)0x2000000045dc = 0; *(uint64_t*)0x2000000045e0 = 0; *(uint64_t*)0x2000000045e8 = 3; *(uint32_t*)0x2000000045f0 = 6; *(uint32_t*)0x2000000045f4 = 0xfffffffd; memcpy((void*)0x2000000045f8, "wlan0\000", 6); *(uint64_t*)0x200000005bf0 = 0x200000004740; *(uint32_t*)0x200000004740 = 0xa0; *(uint32_t*)0x200000004744 = 0xfffffffe; *(uint64_t*)0x200000004748 = 0x7fff; *(uint64_t*)0x200000004750 = 1; *(uint64_t*)0x200000004758 = 2; *(uint64_t*)0x200000004760 = 8; *(uint64_t*)0x200000004768 = 0x8001; *(uint32_t*)0x200000004770 = 0x9000; *(uint32_t*)0x200000004774 = 0; *(uint64_t*)0x200000004778 = 3; *(uint64_t*)0x200000004780 = 4; *(uint64_t*)0x200000004788 = 0x4283; *(uint64_t*)0x200000004790 = 6; *(uint64_t*)0x200000004798 = 7; *(uint64_t*)0x2000000047a0 = 1; *(uint32_t*)0x2000000047a8 = 4; *(uint32_t*)0x2000000047ac = 0x8000; *(uint32_t*)0x2000000047b0 = 0x7f; *(uint32_t*)0x2000000047b4 = 0x2000; *(uint32_t*)0x2000000047b8 = 0xa; *(uint32_t*)0x2000000047bc = r[22]; *(uint32_t*)0x2000000047c0 = r[24]; *(uint32_t*)0x2000000047c4 = 2; *(uint32_t*)0x2000000047c8 = 9; *(uint32_t*)0x2000000047cc = 0; *(uint64_t*)0x2000000047d0 = 0; *(uint32_t*)0x2000000047d8 = 0; *(uint32_t*)0x2000000047dc = 0; *(uint64_t*)0x200000005bf8 = 0x200000004800; *(uint32_t*)0x200000004800 = 0x20; *(uint32_t*)0x200000004804 = 0; *(uint64_t*)0x200000004808 = 0xa; *(uint32_t*)0x200000004810 = 8; *(uint32_t*)0x200000004814 = 0; *(uint32_t*)0x200000004818 = 0; *(uint32_t*)0x20000000481c = 0; *(uint64_t*)0x200000005c00 = 0x200000005a40; *(uint32_t*)0x200000005a40 = 0x130; *(uint32_t*)0x200000005a44 = 0; *(uint64_t*)0x200000005a48 = 0x800; *(uint64_t*)0x200000005a50 = 0x10000000; *(uint32_t*)0x200000005a58 = 9; *(uint32_t*)0x200000005a5c = 0; memset((void*)0x200000005a60, 0, 16); *(uint32_t*)0x200000005a70 = 4; *(uint32_t*)0x200000005a74 = 0xfffffff9; *(uint64_t*)0x200000005a78 = 8; *(uint32_t*)0x200000005a80 = 0xd; *(uint32_t*)0x200000005a84 = r[25]; *(uint32_t*)0x200000005a88 = r[27]; *(uint16_t*)0x200000005a8c = 0x4000; memset((void*)0x200000005a8e, 0, 2); *(uint64_t*)0x200000005a90 = 0xe; *(uint64_t*)0x200000005a98 = 1; *(uint64_t*)0x200000005aa0 = 9; *(uint64_t*)0x200000005aa8 = 4; *(uint64_t*)0x200000005ab0 = 0x75; *(uint32_t*)0x200000005ab8 = 0x10; *(uint32_t*)0x200000005abc = 0; *(uint64_t*)0x200000005ac0 = 0; *(uint32_t*)0x200000005ac8 = 0x2a; *(uint32_t*)0x200000005acc = 0; *(uint64_t*)0x200000005ad0 = 4; *(uint32_t*)0x200000005ad8 = 0x647; *(uint32_t*)0x200000005adc = 0; *(uint64_t*)0x200000005ae0 = 8; *(uint32_t*)0x200000005ae8 = 0xfffffffa; *(uint32_t*)0x200000005aec = 0; *(uint32_t*)0x200000005af0 = 4; *(uint32_t*)0x200000005af4 = 9; *(uint32_t*)0x200000005af8 = 0xf1; *(uint32_t*)0x200000005afc = 7; memset((void*)0x200000005b00, 0, 112); syz_fuse_handle_req(/*fd=*/r[6], /*buf=*/0x200000000780, /*len=*/0x2000, /*res=*/0x200000005b80); break; case 33: res = syscall(__NR_socket, /*domain=*/0x10ul, /*type=*/3ul, /*proto=*/0x10); if (res != -1) r[28] = res; break; case 34: memcpy((void*)0x200000005c40, "SEG6\000", 5); syz_genetlink_get_family_id(/*name=*/0x200000005c40, /*fd=*/r[28]); break; case 35: syz_init_net_socket(/*domain=*/0x24, /*type=*/2, /*proto=*/0); break; case 36: res = -1; res = syz_io_uring_complete(/*ring_ptr=*/0); if (res != -1) r[29] = res; break; case 37: *(uint32_t*)0x200000005c84 = 0x9c5d; *(uint32_t*)0x200000005c88 = 2; *(uint32_t*)0x200000005c8c = 1; *(uint32_t*)0x200000005c90 = 0x253; *(uint32_t*)0x200000005c98 = r[15]; memset((void*)0x200000005c9c, 0, 12); res = -1; res = syz_io_uring_setup(/*entries=*/0x19f7, /*params=*/0x200000005c80, /*ring_ptr=*/0x200000005d00, /*sqes_ptr=*/0x200000005d40); if (res != -1) { r[30] = *(uint64_t*)0x200000005d00; r[31] = *(uint64_t*)0x200000005d40; } break; case 38: *(uint8_t*)0x200000005dc0 = 0xb; *(uint8_t*)0x200000005dc1 = 0x28; *(uint16_t*)0x200000005dc2 = 0; *(uint32_t*)0x200000005dc4 = 0; *(uint64_t*)0x200000005dc8 = 3; *(uint64_t*)0x200000005dd0 = 0x200000005d80; *(uint64_t*)0x200000005d80 = 0; *(uint64_t*)0x200000005d88 = 0; *(uint32_t*)0x200000005dd8 = 1; *(uint32_t*)0x200000005ddc = 0x10; *(uint64_t*)0x200000005de0 = 1; *(uint16_t*)0x200000005de8 = 0; *(uint16_t*)0x200000005dea = 0; memset((void*)0x200000005dec, 0, 20); syz_io_uring_submit(/*ring_ptr=*/r[30], /*sqes_ptr=*/r[31], /*sqe=*/0x200000005dc0); break; case 39: res = -1; res = syz_kvm_setup_syzos_vm(/*fd=*/r[15], /*usermem=*/0x200000bff000); if (res != -1) r[32] = res; break; case 40: *(uint64_t*)0x200000005e80 = 0; *(uint64_t*)0x200000005e88 = 0x200000005e00; *(uint64_t*)0x200000005e00 = 0x12c; *(uint64_t*)0x200000005e08 = 0x18; *(uint64_t*)0x200000005e10 = 0; *(uint64_t*)0x200000005e18 = 0; *(uint64_t*)0x200000005e20 = 0x18; *(uint64_t*)0x200000005e28 = 4; *(uint64_t*)0x200000005e30 = 0x12d; *(uint64_t*)0x200000005e38 = 0x18; *(uint64_t*)0x200000005e40 = 2; *(uint64_t*)0x200000005e90 = 0x48; syz_kvm_add_vcpu(/*vm=*/r[32], /*text=*/0x200000005e80); break; case 41: *(uint64_t*)0x200000006100 = 0; *(uint64_t*)0x200000006108 = 0x200000005ec0; memcpy((void*)0x200000005ec0, 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560); *(uint64_t*)0x200000006110 = 0x230; *(uint64_t*)0x200000006140 = 1; *(uint64_t*)0x200000006148 = 7; syz_kvm_setup_cpu(/*fd=*/r[14], /*cpufd=*/r[29], /*usermem=*/0x200000c37000, /*text=*/0x200000006100, /*ntext=*/1, /*flags=KVM_SETUP_PPC64_LE*/1, /*opts=*/0x200000006140, /*nopt=*/1); break; case 42: syz_kvm_setup_syzos_vm(/*fd=*/r[29], /*usermem=*/0x200000c00000); break; case 43: *(uint32_t*)0x200000006180 = 0; syz_memcpy_off(/*ring_ptr=*/r[30], /*flag_off=SQ_FLAGS_OFFSET*/0x114, /*src=*/0x200000006180, /*src_off=*/0, /*nbytes=*/4); break; case 44: *(uint64_t*)0x200000006240 = 5; res = syscall(__NR_socketcall, /*call=*/1ul, /*args=*/0x200000006240ul); if (res != -1) r[33] = res; break; case 45: *(uint32_t*)0x200000006340 = 0xfffffffa; *(uint32_t*)0x200000006344 = r[11]; *(uint32_t*)0x200000006348 = r[27]; *(uint32_t*)0x20000000634c = 3; *(uint32_t*)0x200000006350 = 0xffff; *(uint32_t*)0x200000006354 = 0xe6b; *(uint16_t*)0x200000006358 = 7; *(uint32_t*)0x20000000635c = 0; *(uint64_t*)0x200000006360 = 0x357b; *(uint64_t*)0x200000006368 = 3; *(uint64_t*)0x200000006370 = 0x8000000000000000; *(uint32_t*)0x200000006378 = 0x74; *(uint32_t*)0x20000000637c = r[21]; *(uint16_t*)0x200000006380 = 0xc0b; *(uint16_t*)0x200000006382 = 0; *(uint64_t*)0x200000006388 = 0x200000006280; memcpy((void*)0x200000006280, "\x70\x10\x15\x9f\x68\xd5\xae\x90\x71\x37\xfa\x70\xd2\x86\xa1\x8b\xa4\x83\x48\xf8\x8d\x1f\xa0\x97\xcf\xe8\x2b\xb9\x55\x9e\x66\xc9\x7b\x4c\xcf\x3a\xcd\x9c\xe2\x40\x54\x49\x07\xf4\x53\x81\x70\xe4\x5e\x0c\x6d\xe8\xad\xfb\x6a\xe9\x4e\xd4\x4b\x61\x6a\x63\x73\x78\x14\xf1\x89\x44\x73\xd9\x51\x9f\x21\x30\xe8\xa0\xe0\x61\xc9\x6e\x46\xa9\x9a\x53\x16\xe4\x6b\x6b\x46\x13\x48\xbb\x03\xdd\xda\xd7\x06\x75\xbc\xda\x59\x21\xbd\xb5\x03\x8c\xc7\xdc\xad\xe7\xba\x3e\x10\x6c\xf3\x15\xe2\xad\x48\x81\x8a\x62\xc7", 123); *(uint64_t*)0x200000006390 = 0x200000006300; memcpy((void*)0x200000006300, "\x13\x68\x24\x8a\xd9\x08\xeb\x42\x50\x81\x23\x9c\x0a\x10\xa5\x14\xef\x06\xf1\x6f\xa3\x8b\xc5\x2b\x0f\x03\xb0\x4d\x36\xf5\x44\x26\x3c\xb4\xa0\xa3\xff\xbb\xaf\xa8\x00\x89\xcf\x8b\x02\x84\x1d\xf4\x33\xc6\xb9\x7d\xa8\xfb\xfe\x28\x5f\xcc\xd0\x5a\xd4", 61); res = syscall(__NR_shmctl, /*shmid=*/0x80000000, /*cmd=*/0xeul, /*buf=*/0x200000006340ul); if (res != -1) { r[34] = *(uint32_t*)0x200000006348; r[35] = *(uint32_t*)0x20000000637c; } break; case 46: memcpy((void*)0x2000000061c0, "fuse\000", 5); memcpy((void*)0x200000006200, "./file0\000", 8); memcpy((void*)0x2000000063c0, "fd", 2); *(uint8_t*)0x2000000063c2 = 0x3d; sprintf((char*)0x2000000063c3, "0x%016llx", (long long)r[33]); *(uint8_t*)0x2000000063d5 = 0x2c; memcpy((void*)0x2000000063d6, "rootmode", 8); *(uint8_t*)0x2000000063de = 0x3d; sprintf((char*)0x2000000063df, "%023llo", (long long)0x1000); *(uint8_t*)0x2000000063f6 = 0x2c; memcpy((void*)0x2000000063f7, "user_id", 7); *(uint8_t*)0x2000000063fe = 0x3d; sprintf((char*)0x2000000063ff, "%020llu", (long long)r[23]); *(uint8_t*)0x200000006413 = 0x2c; memcpy((void*)0x200000006414, "group_id", 8); *(uint8_t*)0x20000000641c = 0x3d; sprintf((char*)0x20000000641d, "%020llu", (long long)r[34]); *(uint8_t*)0x200000006431 = 0x2c; memcpy((void*)0x200000006432, "blksize", 7); *(uint8_t*)0x200000006439 = 0x3d; sprintf((char*)0x20000000643a, "0x%016llx", (long long)0x600); *(uint8_t*)0x20000000644c = 0x2c; memcpy((void*)0x20000000644d, "max_read", 8); *(uint8_t*)0x200000006455 = 0x3d; sprintf((char*)0x200000006456, "0x%016llx", (long long)0); *(uint8_t*)0x200000006468 = 0x2c; memcpy((void*)0x200000006469, "blksize", 7); *(uint8_t*)0x200000006470 = 0x3d; sprintf((char*)0x200000006471, "0x%016llx", (long long)0x1e00); *(uint8_t*)0x200000006483 = 0x2c; memcpy((void*)0x200000006484, "max_read", 8); *(uint8_t*)0x20000000648c = 0x3d; sprintf((char*)0x20000000648d, "0x%016llx", (long long)0x100000001); *(uint8_t*)0x20000000649f = 0x2c; memcpy((void*)0x2000000064a0, "default_permissions", 19); *(uint8_t*)0x2000000064b3 = 0x2c; memcpy((void*)0x2000000064b4, "default_permissions", 19); *(uint8_t*)0x2000000064c7 = 0x2c; memcpy((void*)0x2000000064c8, "euid<", 5); sprintf((char*)0x2000000064cd, "%020llu", (long long)r[13]); *(uint8_t*)0x2000000064e1 = 0x2c; memcpy((void*)0x2000000064e2, "subj_user", 9); *(uint8_t*)0x2000000064eb = 0x3d; memset((void*)0x2000000064ec, 44, 1); *(uint8_t*)0x2000000064ed = 0x2c; memcpy((void*)0x2000000064ee, "uid<", 4); sprintf((char*)0x2000000064f2, "%020llu", (long long)r[26]); *(uint8_t*)0x200000006506 = 0x2c; memcpy((void*)0x200000006507, "audit", 5); *(uint8_t*)0x20000000650c = 0x2c; memcpy((void*)0x20000000650d, "dont_measure", 12); *(uint8_t*)0x200000006519 = 0x2c; *(uint8_t*)0x20000000651a = 0; memcpy((void*)0x200000006540, "\xd3\xaa\x92", 3); syz_mount_image(/*fs=*/0x2000000061c0, /*dir=*/0x200000006200, /*flags=MS_NOATIME*/0x400, /*opts=*/0x2000000063c0, /*chdir=*/0, /*size=*/0, /*img=*/0x200000006540); break; case 47: memcpy((void*)0x200000006580, "/dev/i2c-#\000", 11); syz_open_dev(/*dev=*/0x200000006580, /*id=*/0x800, /*flags=O_NOATIME*/0x40000); break; case 48: memcpy((void*)0x2000000065c0, "cgroup\000", 7); syz_open_procfs(/*pid=*/r[5], /*file=*/0x2000000065c0); break; case 49: syz_open_pts(/*fd=*/r[14], /*flags=O_TRUNC|O_WRONLY*/0x201); break; case 50: syz_pidfd_open(/*pid=*/r[35], /*flags=*/0); break; case 51: res = syscall(__NR_pkey_alloc, /*flags=*/0ul, /*val=PKEY_DISABLE_WRITE*/2ul); if (res != -1) r[36] = res; break; case 52: syz_pkey_set(/*key=*/r[36], /*val=*/0); break; case 53: syz_socket_connect_nvme_tcp(); break; case 54: *(uint8_t*)0x200000006600 = 0x12; *(uint8_t*)0x200000006601 = 1; *(uint16_t*)0x200000006602 = 0x310; *(uint8_t*)0x200000006604 = 0xf; *(uint8_t*)0x200000006605 = 0x36; *(uint8_t*)0x200000006606 = 0x49; *(uint8_t*)0x200000006607 = 8; *(uint16_t*)0x200000006608 = 0x7d0; *(uint16_t*)0x20000000660a = 0x4101; *(uint16_t*)0x20000000660c = 0x4624; *(uint8_t*)0x20000000660e = 1; *(uint8_t*)0x20000000660f = 2; *(uint8_t*)0x200000006610 = 3; *(uint8_t*)0x200000006611 = 1; *(uint8_t*)0x200000006612 = 9; *(uint8_t*)0x200000006613 = 2; *(uint16_t*)0x200000006614 = 0x4f2; *(uint8_t*)0x200000006616 = 3; *(uint8_t*)0x200000006617 = 1; *(uint8_t*)0x200000006618 = 0xa2; *(uint8_t*)0x200000006619 = 0x40; *(uint8_t*)0x20000000661a = 0x64; *(uint8_t*)0x20000000661b = 9; *(uint8_t*)0x20000000661c = 4; *(uint8_t*)0x20000000661d = 0xc2; *(uint8_t*)0x20000000661e = 7; *(uint8_t*)0x20000000661f = 0xa; *(uint8_t*)0x200000006620 = 0x50; *(uint8_t*)0x200000006621 = 0xb3; *(uint8_t*)0x200000006622 = 0x17; *(uint8_t*)0x200000006623 = 7; *(uint8_t*)0x200000006624 = 9; *(uint8_t*)0x200000006625 = 0x21; *(uint16_t*)0x200000006626 = 3; *(uint8_t*)0x200000006628 = 0xdf; *(uint8_t*)0x200000006629 = 1; *(uint8_t*)0x20000000662a = 0x22; *(uint16_t*)0x20000000662b = 0x238; *(uint8_t*)0x20000000662d = 7; *(uint8_t*)0x20000000662e = 0x24; *(uint8_t*)0x20000000662f = 1; *(uint8_t*)0x200000006630 = 2; *(uint8_t*)0x200000006631 = 2; *(uint16_t*)0x200000006632 = 2; *(uint8_t*)0x200000006634 = 0xb; *(uint8_t*)0x200000006635 = 0x24; *(uint8_t*)0x200000006636 = 2; *(uint8_t*)0x200000006637 = 1; *(uint8_t*)0x200000006638 = 0xde; *(uint8_t*)0x200000006639 = 2; *(uint8_t*)0x20000000663a = 0; *(uint8_t*)0x20000000663b = 5; memcpy((void*)0x20000000663c, "\x11\x6d\xf7", 3); *(uint8_t*)0x20000000663f = 0xa; *(uint8_t*)0x200000006640 = 0x24; *(uint8_t*)0x200000006641 = 2; *(uint8_t*)0x200000006642 = 2; *(uint16_t*)0x200000006643 = 8; *(uint16_t*)0x200000006645 = 3; *(uint8_t*)0x200000006647 = 7; memset((void*)0x200000006648, 59, 1); *(uint8_t*)0x200000006649 = 0xa; *(uint8_t*)0x20000000664a = 0x24; *(uint8_t*)0x20000000664b = 2; *(uint8_t*)0x20000000664c = 1; *(uint8_t*)0x20000000664d = 4; *(uint8_t*)0x20000000664e = 3; *(uint8_t*)0x20000000664f = 0x1a; *(uint8_t*)0x200000006650 = 9; memcpy((void*)0x200000006651, "\x0f\x58", 2); *(uint8_t*)0x200000006653 = 0xc; *(uint8_t*)0x200000006654 = 0x24; *(uint8_t*)0x200000006655 = 2; *(uint8_t*)0x200000006656 = 2; *(uint16_t*)0x200000006657 = 0xf270; *(uint16_t*)0x200000006659 = 0x100; *(uint8_t*)0x20000000665b = 7; memcpy((void*)0x20000000665c, "\x31\x29\xf9", 3); *(uint8_t*)0x20000000665f = 0xb; *(uint8_t*)0x200000006660 = 0x24; *(uint8_t*)0x200000006661 = 2; *(uint8_t*)0x200000006662 = 1; *(uint8_t*)0x200000006663 = 1; *(uint8_t*)0x200000006664 = 3; *(uint8_t*)0x200000006665 = 0xf9; *(uint8_t*)0x200000006666 = 0xa3; memcpy((void*)0x200000006667, "\x54\x06\x13", 3); *(uint8_t*)0x20000000666a = 9; *(uint8_t*)0x20000000666b = 5; *(uint8_t*)0x20000000666c = 3; *(uint8_t*)0x20000000666d = 0x38; *(uint16_t*)0x20000000666e = 8; *(uint8_t*)0x200000006670 = 1; *(uint8_t*)0x200000006671 = 0xf9; *(uint8_t*)0x200000006672 = 0; *(uint8_t*)0x200000006673 = 7; *(uint8_t*)0x200000006674 = 0x25; *(uint8_t*)0x200000006675 = 1; *(uint8_t*)0x200000006676 = 1; *(uint8_t*)0x200000006677 = 0x80; *(uint16_t*)0x200000006678 = 0xffb0; *(uint8_t*)0x20000000667a = 0x62; *(uint8_t*)0x20000000667b = 0xe; memcpy((void*)0x20000000667c, "\x0b\xef\x67\x9d\x63\x59\xd7\x1a\x14\x4a\x38\xa2\x28\x34\xd1\x2b\xd1\x9c\x60\xb6\x58\x29\xf4\x4e\xbe\x6b\x12\x58\xa3\xa7\xa0\xcc\x60\xf3\x00\x07\xc2\xc4\xd2\xa3\xcb\x88\xfb\x6b\xeb\x58\x0e\x62\x81\x47\x11\x4f\xfc\x6a\x4e\x39\xb1\x9e\x71\x8f\xc2\xcd\x0f\xa5\xaf\x68\x86\x49\xab\xe3\xdb\x58\xd0\x70\x72\x03\x28\x3b\x6b\xdc\xa0\x5f\x49\xfb\x16\xb3\x61\x8f\xcf\x4d\xd0\x1c\xb2\xef\x35\x09", 96); *(uint8_t*)0x2000000066dc = 9; *(uint8_t*)0x2000000066dd = 5; *(uint8_t*)0x2000000066de = 4; *(uint8_t*)0x2000000066df = 0; *(uint16_t*)0x2000000066e0 = 0x20; *(uint8_t*)0x2000000066e2 = 1; *(uint8_t*)0x2000000066e3 = 2; *(uint8_t*)0x2000000066e4 = 5; *(uint8_t*)0x2000000066e5 = 0x4e; *(uint8_t*)0x2000000066e6 = 0xa; memcpy((void*)0x2000000066e7, "\xaa\xde\x99\xcc\xf3\x48\x06\x1a\xd9\x22\x25\xe0\x5a\x39\x6a\x2e\xbe\x89\x2c\xa6\x5d\xe9\xef\xa6\x65\x82\x1e\x34\x20\x0c\x5c\xaa\x94\x3c\x9b\x1a\x3e\xb1\x08\x28\xe1\x38\x15\xe6\x12\x0c\x47\x87\xa4\xd3\x95\xb1\xe3\x2a\x8b\xa1\xff\xb9\x91\x37\x58\x79\xd5\x17\x86\x2d\xe6\xe9\xcb\x6f\x72\x33\x35\xdd\x15\x6a", 76); *(uint8_t*)0x200000006733 = 9; *(uint8_t*)0x200000006734 = 5; *(uint8_t*)0x200000006735 = 3; *(uint8_t*)0x200000006736 = 0xc; *(uint16_t*)0x200000006737 = 0x3ff; *(uint8_t*)0x200000006739 = 7; *(uint8_t*)0x20000000673a = 0; *(uint8_t*)0x20000000673b = 0x7f; *(uint8_t*)0x20000000673c = 0x33; *(uint8_t*)0x20000000673d = 0xe; memcpy((void*)0x20000000673e, "\x08\xb9\x28\xc5\x63\xb3\xfb\xc1\x36\xbe\xaf\x22\xbf\x46\xe0\xcf\x55\xe3\xf2\x62\x48\x5f\x30\xb2\x8a\x3f\x9a\x3e\xc9\x01\xce\x80\x66\xc6\x78\x8d\x46\x95\x26\xc5\x5b\xf0\xc2\xb3\xca\x50\x05\x53\x9a", 49); *(uint8_t*)0x20000000676f = 9; *(uint8_t*)0x200000006770 = 5; *(uint8_t*)0x200000006771 = 0xb; *(uint8_t*)0x200000006772 = 4; *(uint16_t*)0x200000006773 = 0x3ff; *(uint8_t*)0x200000006775 = 3; *(uint8_t*)0x200000006776 = 0x40; *(uint8_t*)0x200000006777 = 0x7f; *(uint8_t*)0x200000006778 = 7; *(uint8_t*)0x200000006779 = 0x25; *(uint8_t*)0x20000000677a = 1; *(uint8_t*)0x20000000677b = 0x87; *(uint8_t*)0x20000000677c = 9; *(uint16_t*)0x20000000677d = 0x4e; *(uint8_t*)0x20000000677f = 0xcb; *(uint8_t*)0x200000006780 = 0x11; memcpy((void*)0x200000006781, "\x3b\x9d\xca\xcc\x67\x90\x86\xd7\x8f\x92\x7a\xb6\x34\x93\x5a\x18\x81\x3b\x23\xcc\xef\xfe\xa6\x9b\x63\x0a\xa9\x7c\xc4\x69\x90\x7a\xfa\xc2\xa3\x03\x27\xad\xeb\x90\x1d\x9f\xb9\x00\xad\x82\x13\x80\x98\xcb\xff\x5f\xed\x7f\xee\x2c\x7d\x70\x12\x90\xce\x4a\xd0\x20\xa9\xda\x29\x67\x5f\x8f\x05\x13\x99\x87\x9d\xb5\x70\x22\xb8\x9c\x99\x01\x20\x51\x3a\xaa\x70\xc5\x18\x47\xb1\x28\xdd\x73\xbd\xea\x25\xcb\xb5\x45\xc1\xae\x83\x52\x02\x4c\xa9\x3c\xd7\xea\x88\x1c\xbb\x09\x20\xee\xde\xf0\x72\xef\xe9\xda\x61\xb7\xbd\x77\xa3\xc0\x85\xd7\x12\xc1\x42\xca\x88\xc3\x9f\x8e\xdd\x17\xd6\xfb\x9a\x7e\xf8\xd0\xfa\xd5\xa1\x5a\x33\x3e\x7e\xd0\x5e\x7e\x9a\xe6\xe2\xa4\x64\xc3\x15\x9a\xb1\xa6\x0e\x33\xaf\xbf\x29\xa2\xf6\x78\xc8\xc9\xe2\xf8\xf7\xa8\xd0\x3d\x55\x82\x52\x9b\x27\x7b\x4b\xe8\x55\x83\xe5\xd8\x1b\xc9\x57\x49\x77\x30\x42", 201); *(uint8_t*)0x20000000684a = 9; *(uint8_t*)0x20000000684b = 5; *(uint8_t*)0x20000000684c = 1; *(uint8_t*)0x20000000684d = 3; *(uint16_t*)0x20000000684e = 8; *(uint8_t*)0x200000006850 = 0xe; *(uint8_t*)0x200000006851 = 8; *(uint8_t*)0x200000006852 = 0x7f; *(uint8_t*)0x200000006853 = 0x72; *(uint8_t*)0x200000006854 = 6; memcpy((void*)0x200000006855, "\x6e\xe2\x41\x04\x69\xb7\xa8\xb2\x3e\x32\x55\xa5\x54\xb6\x3d\x5b\xeb\x1b\x34\xb4\x87\x18\x94\xe3\xdf\x69\xe7\x55\x8c\xe5\x6c\xc8\x3b\x83\xae\x1a\xc9\xd1\xde\xc0\x88\x2d\x04\x0a\x78\x01\xa3\x00\xc7\xea\xc2\x6d\x78\xd2\xda\xff\x6b\xd4\x7c\xac\xa5\x00\xd4\x6c\x1b\x5a\x0b\x9e\x1a\xda\x0e\x7b\x60\x6b\x6f\xd6\xb3\x9d\xb8\x1c\x7c\x95\x4c\x04\xd4\xed\xe9\x80\xea\x2c\xa8\x0b\x11\x3b\xdb\x4b\xe7\x47\xe1\xb6\xdc\x92\x81\xd7\x7e\x85\x68\x3a\xaa\xc6\x53\x4c", 112); *(uint8_t*)0x2000000068c5 = 9; *(uint8_t*)0x2000000068c6 = 5; *(uint8_t*)0x2000000068c7 = 0xb; *(uint8_t*)0x2000000068c8 = 0xc; *(uint16_t*)0x2000000068c9 = 0x60e1; *(uint8_t*)0x2000000068cb = 0; *(uint8_t*)0x2000000068cc = 1; *(uint8_t*)0x2000000068cd = 7; *(uint8_t*)0x2000000068ce = 9; *(uint8_t*)0x2000000068cf = 5; *(uint8_t*)0x2000000068d0 = 0; *(uint8_t*)0x2000000068d1 = 0; *(uint16_t*)0x2000000068d2 = 0x10; *(uint8_t*)0x2000000068d4 = 5; *(uint8_t*)0x2000000068d5 = 1; *(uint8_t*)0x2000000068d6 = 0x77; *(uint8_t*)0x2000000068d7 = 9; *(uint8_t*)0x2000000068d8 = 5; *(uint8_t*)0x2000000068d9 = 5; *(uint8_t*)0x2000000068da = 0; *(uint16_t*)0x2000000068db = 0x208; *(uint8_t*)0x2000000068dd = 0x1b; *(uint8_t*)0x2000000068de = 9; *(uint8_t*)0x2000000068df = 7; *(uint8_t*)0x2000000068e0 = 9; *(uint8_t*)0x2000000068e1 = 5; *(uint8_t*)0x2000000068e2 = 0xf; *(uint8_t*)0x2000000068e3 = 0; *(uint16_t*)0x2000000068e4 = 0x40; *(uint8_t*)0x2000000068e6 = 0x30; *(uint8_t*)0x2000000068e7 = 5; *(uint8_t*)0x2000000068e8 = 7; *(uint8_t*)0x2000000068e9 = 0x50; *(uint8_t*)0x2000000068ea = 6; memcpy((void*)0x2000000068eb, "\x01\x1d\xaf\x9a\xd3\xae\xa9\x56\xd0\x18\x4e\x89\x07\xd7\xb0\xb0\xa6\xaa\x9e\x92\x1a\xc6\x4d\x7a\x9e\x5a\x0c\xe5\xb5\xe0\xaf\xb4\x78\x68\xc9\xc4\xa7\x6b\x65\x09\x83\x5b\xf9\xee\x45\xa7\x89\x1e\xaa\xd1\x72\xa8\x75\x63\x4f\x7f\x36\x26\x01\x24\x66\x9b\x2d\x1b\x04\xc2\xfd\xa3\x8c\xc9\x36\x92\x1c\xb5\x61\x24\x5e\xfa", 78); *(uint8_t*)0x200000006939 = 0xb7; *(uint8_t*)0x20000000693a = 0x21; memcpy((void*)0x20000000693b, "\x53\x54\x2a\x37\x44\x9c\x9d\x1a\x4e\x69\x6a\x99\x52\x7d\x5a\xd5\xbd\xad\x1c\x7e\x72\x41\x28\xdf\x50\x29\x5a\xa0\xc6\x14\x01\xca\x6c\xd5\xcd\x35\x69\x77\xf6\x17\xe8\xb1\x14\x48\x46\x62\x69\x11\x6a\xf9\x3b\x9d\xce\x05\xde\xd4\x87\x92\x71\x9f\x65\xbf\xa9\x1d\xa1\x6b\x85\xee\x1d\x62\x36\x08\x4d\x81\x70\xf9\x7c\x0a\x74\xf1\x02\x66\x3c\x64\x5b\x0e\xe1\xb0\xfa\x79\x04\xe6\x46\x43\x8d\x8b\x16\x21\x86\x04\x56\x1c\x1a\xbb\x98\x28\x9e\x3e\xcb\xa8\x8e\x78\xf6\x73\x61\x47\x87\x74\x46\x2a\x4d\x82\x74\x96\x46\x45\x20\x04\xb2\x48\x20\x82\xe9\xc1\xb2\xf2\x97\x24\x19\xf6\xf7\x52\xe1\xbe\xc5\xe1\x92\x5f\xce\x21\x5e\xdb\x82\x65\x34\x4d\xa8\x5b\x85\x16\x4d\xb3\xc6\x33\xe4\xe4\x31\xfe\xc4\xc6\x09\x66\x4e\xac\x2b\x6b\x1f\x5f\x7b\xdc\x10", 181); *(uint8_t*)0x2000000069f0 = 9; *(uint8_t*)0x2000000069f1 = 5; *(uint8_t*)0x2000000069f2 = 0xc; *(uint8_t*)0x2000000069f3 = 0x10; *(uint16_t*)0x2000000069f4 = 0x10; *(uint8_t*)0x2000000069f6 = 3; *(uint8_t*)0x2000000069f7 = 0xf9; *(uint8_t*)0x2000000069f8 = -1; *(uint8_t*)0x2000000069f9 = 0xba; *(uint8_t*)0x2000000069fa = 0x23; memcpy((void*)0x2000000069fb, "\x5c\x48\xa5\x1f\x46\xfa\x07\x8d\x84\xce\x43\x4e\x72\x2a\x7f\xa4\xe7\x02\x1a\xe9\xd9\xb7\x66\x77\x36\x6d\xe6\xa1\x0a\xb3\xe9\x4e\x09\x69\xd7\xfc\x2a\x24\x53\x6e\x11\x50\xd9\x46\x72\xc5\x41\x8b\x02\x95\x1d\xef\x7e\x20\xc7\xdf\xe0\xaa\x26\xad\xbf\x0b\xfd\x8f\x6d\xd3\x51\xfa\x30\x99\x07\x13\x53\x71\x34\xaf\x9c\x14\xfa\x84\xde\xe2\xb9\x5a\xf8\xe1\x34\x54\x2b\x5a\x1a\xd5\x40\x32\x9a\x97\xcb\xdd\x1a\x24\x22\xf1\x3e\x6e\x03\xb4\x9f\x71\x05\xa6\xbf\x49\x00\xea\x72\x3f\xbe\x14\xf2\x1d\x18\x2a\xee\xf2\xcf\x51\x62\x59\x1f\x8b\xd3\x8b\x85\xd4\x5d\x72\x3c\xef\x02\x13\x2b\x5e\x45\x46\x7d\xd8\xd4\x30\xc3\x78\xb8\xbf\x2d\x98\x40\x32\x67\x01\x03\x79\xde\x7b\xd0\x4c\x80\x0d\xfd\x5f\xae\x0c\x0d\xda\xc0\xb5\xcf\xfd\xe9\x8c\xa4\x00\xdc\xe3\x0d\xdd", 184); *(uint8_t*)0x200000006ab3 = 9; *(uint8_t*)0x200000006ab4 = 4; *(uint8_t*)0x200000006ab5 = 0xfc; *(uint8_t*)0x200000006ab6 = 4; *(uint8_t*)0x200000006ab7 = 1; *(uint8_t*)0x200000006ab8 = -1; *(uint8_t*)0x200000006ab9 = 6; *(uint8_t*)0x200000006aba = 0x39; *(uint8_t*)0x200000006abb = 0xc; *(uint8_t*)0x200000006abc = 9; *(uint8_t*)0x200000006abd = 5; *(uint8_t*)0x200000006abe = 0; *(uint8_t*)0x200000006abf = 2; *(uint16_t*)0x200000006ac0 = 0x400; *(uint8_t*)0x200000006ac2 = 9; *(uint8_t*)0x200000006ac3 = 0xdf; *(uint8_t*)0x200000006ac4 = 2; *(uint8_t*)0x200000006ac5 = 7; *(uint8_t*)0x200000006ac6 = 0x25; *(uint8_t*)0x200000006ac7 = 1; *(uint8_t*)0x200000006ac8 = 3; *(uint8_t*)0x200000006ac9 = 8; *(uint16_t*)0x200000006aca = 0x8000; *(uint8_t*)0x200000006acc = 9; *(uint8_t*)0x200000006acd = 4; *(uint8_t*)0x200000006ace = 0x9d; *(uint8_t*)0x200000006acf = 1; *(uint8_t*)0x200000006ad0 = 3; *(uint8_t*)0x200000006ad1 = 0x48; *(uint8_t*)0x200000006ad2 = 0x48; *(uint8_t*)0x200000006ad3 = 0x40; *(uint8_t*)0x200000006ad4 = 0xa; *(uint8_t*)0x200000006ad5 = 9; *(uint8_t*)0x200000006ad6 = 5; *(uint8_t*)0x200000006ad7 = 1; *(uint8_t*)0x200000006ad8 = 0x10; *(uint16_t*)0x200000006ad9 = 0x40; *(uint8_t*)0x200000006adb = 2; *(uint8_t*)0x200000006adc = 0xf1; *(uint8_t*)0x200000006add = 0xc; *(uint8_t*)0x200000006ade = 7; *(uint8_t*)0x200000006adf = 0x25; *(uint8_t*)0x200000006ae0 = 1; *(uint8_t*)0x200000006ae1 = 0x81; *(uint8_t*)0x200000006ae2 = 0x81; *(uint16_t*)0x200000006ae3 = 5; *(uint8_t*)0x200000006ae5 = 9; *(uint8_t*)0x200000006ae6 = 5; *(uint8_t*)0x200000006ae7 = 7; *(uint8_t*)0x200000006ae8 = 8; *(uint16_t*)0x200000006ae9 = 0x40; *(uint8_t*)0x200000006aeb = 6; *(uint8_t*)0x200000006aec = 0; *(uint8_t*)0x200000006aed = 1; *(uint8_t*)0x200000006aee = 7; *(uint8_t*)0x200000006aef = 0x25; *(uint8_t*)0x200000006af0 = 1; *(uint8_t*)0x200000006af1 = 2; *(uint8_t*)0x200000006af2 = 0; *(uint16_t*)0x200000006af3 = 0x10; *(uint8_t*)0x200000006af5 = 6; *(uint8_t*)0x200000006af6 = 0xe; memcpy((void*)0x200000006af7, "\x55\x5d\xc7\x8c", 4); *(uint8_t*)0x200000006afb = 9; *(uint8_t*)0x200000006afc = 5; *(uint8_t*)0x200000006afd = 5; *(uint8_t*)0x200000006afe = 4; *(uint16_t*)0x200000006aff = 0x200; *(uint8_t*)0x200000006b01 = 9; *(uint8_t*)0x200000006b02 = 0x40; *(uint8_t*)0x200000006b03 = 3; *(uint32_t*)0x200000006c00 = 0xa; *(uint64_t*)0x200000006c04 = 0x200000006b40; *(uint8_t*)0x200000006b40 = 0xa; *(uint8_t*)0x200000006b41 = 6; *(uint16_t*)0x200000006b42 = 0x200; *(uint8_t*)0x200000006b44 = 0x3b; *(uint8_t*)0x200000006b45 = 5; *(uint8_t*)0x200000006b46 = 9; *(uint8_t*)0x200000006b47 = 0x40; *(uint8_t*)0x200000006b48 = 0xa4; *(uint8_t*)0x200000006b49 = 0; *(uint32_t*)0x200000006c0c = 0x30; *(uint64_t*)0x200000006c10 = 0x200000006b80; *(uint8_t*)0x200000006b80 = 5; *(uint8_t*)0x200000006b81 = 0xf; *(uint16_t*)0x200000006b82 = 0x30; *(uint8_t*)0x200000006b84 = 3; *(uint8_t*)0x200000006b85 = 3; *(uint8_t*)0x200000006b86 = 0x10; *(uint8_t*)0x200000006b87 = 0xb; *(uint8_t*)0x200000006b88 = 0x10; *(uint8_t*)0x200000006b89 = 0x10; *(uint8_t*)0x200000006b8a = 0xa; *(uint8_t*)0x200000006b8b = 0x1c; STORE_BY_BITMASK(uint32_t, , 0x200000006b8c, 1, 0, 5); STORE_BY_BITMASK(uint32_t, , 0x200000006b8c, 0x7ffffd3, 5, 27); *(uint16_t*)0x200000006b90 = 0xff00; *(uint16_t*)0x200000006b92 = 0x1fb; *(uint32_t*)0x200000006b94 = 0; *(uint8_t*)0x200000006b98 = 0x18; *(uint8_t*)0x200000006b99 = 0x10; *(uint8_t*)0x200000006b9a = 0xa; *(uint8_t*)0x200000006b9b = 0xf; STORE_BY_BITMASK(uint32_t, , 0x200000006b9c, 3, 0, 5); STORE_BY_BITMASK(uint32_t, , 0x200000006b9c, 8, 5, 27); *(uint16_t*)0x200000006ba0 = 0xff00; *(uint16_t*)0x200000006ba2 = 0xd00; *(uint32_t*)0x200000006ba4 = 0; *(uint32_t*)0x200000006ba8 = 0xffc0cf; *(uint32_t*)0x200000006bac = 0xff0000; *(uint32_t*)0x200000006c18 = 1; *(uint32_t*)0x200000006c1c = 4; *(uint64_t*)0x200000006c20 = 0x200000006bc0; *(uint8_t*)0x200000006bc0 = 4; *(uint8_t*)0x200000006bc1 = 3; *(uint16_t*)0x200000006bc2 = 0x42f; res = -1; res = syz_usb_connect(/*speed=USB_SPEED_HIGH*/3, /*dev_len=*/0x504, /*dev=*/0x200000006600, /*conn_descs=*/0x200000006c00); if (res != -1) r[37] = res; break; case 55: *(uint8_t*)0x200000006c40 = 0x12; *(uint8_t*)0x200000006c41 = 1; *(uint16_t*)0x200000006c42 = 0x200; *(uint8_t*)0x200000006c44 = -1; *(uint8_t*)0x200000006c45 = -1; *(uint8_t*)0x200000006c46 = -1; *(uint8_t*)0x200000006c47 = 0x40; *(uint16_t*)0x200000006c48 = 0xcf3; *(uint16_t*)0x200000006c4a = 0x9271; *(uint16_t*)0x200000006c4c = 0x108; *(uint8_t*)0x200000006c4e = 1; *(uint8_t*)0x200000006c4f = 2; *(uint8_t*)0x200000006c50 = 3; *(uint8_t*)0x200000006c51 = 1; *(uint8_t*)0x200000006c52 = 9; *(uint8_t*)0x200000006c53 = 2; *(uint16_t*)0x200000006c54 = 0x48; *(uint8_t*)0x200000006c56 = 1; *(uint8_t*)0x200000006c57 = 1; *(uint8_t*)0x200000006c58 = 0; *(uint8_t*)0x200000006c59 = 0x80; *(uint8_t*)0x200000006c5a = 0xfa; *(uint8_t*)0x200000006c5b = 9; *(uint8_t*)0x200000006c5c = 4; *(uint8_t*)0x200000006c5d = 0; *(uint8_t*)0x200000006c5e = 0; *(uint8_t*)0x200000006c5f = 6; *(uint8_t*)0x200000006c60 = -1; *(uint8_t*)0x200000006c61 = 0; *(uint8_t*)0x200000006c62 = 0; *(uint8_t*)0x200000006c63 = 0; *(uint8_t*)0x200000006c64 = 9; *(uint8_t*)0x200000006c65 = 5; *(uint8_t*)0x200000006c66 = 1; *(uint8_t*)0x200000006c67 = 2; *(uint16_t*)0x200000006c68 = 0x200; *(uint8_t*)0x200000006c6a = 0; *(uint8_t*)0x200000006c6b = 0; *(uint8_t*)0x200000006c6c = 0; *(uint8_t*)0x200000006c6d = 9; *(uint8_t*)0x200000006c6e = 5; *(uint8_t*)0x200000006c6f = 0x82; *(uint8_t*)0x200000006c70 = 2; *(uint16_t*)0x200000006c71 = 0x200; *(uint8_t*)0x200000006c73 = 0; *(uint8_t*)0x200000006c74 = 0; *(uint8_t*)0x200000006c75 = 0; *(uint8_t*)0x200000006c76 = 9; *(uint8_t*)0x200000006c77 = 5; *(uint8_t*)0x200000006c78 = 0x83; *(uint8_t*)0x200000006c79 = 3; *(uint16_t*)0x200000006c7a = 0x40; *(uint8_t*)0x200000006c7c = 1; *(uint8_t*)0x200000006c7d = 0; *(uint8_t*)0x200000006c7e = 0; *(uint8_t*)0x200000006c7f = 9; *(uint8_t*)0x200000006c80 = 5; *(uint8_t*)0x200000006c81 = 4; *(uint8_t*)0x200000006c82 = 3; *(uint16_t*)0x200000006c83 = 0x40; *(uint8_t*)0x200000006c85 = 1; *(uint8_t*)0x200000006c86 = 0; *(uint8_t*)0x200000006c87 = 0; *(uint8_t*)0x200000006c88 = 9; *(uint8_t*)0x200000006c89 = 5; *(uint8_t*)0x200000006c8a = 5; *(uint8_t*)0x200000006c8b = 2; *(uint16_t*)0x200000006c8c = 0x200; *(uint8_t*)0x200000006c8e = 0; *(uint8_t*)0x200000006c8f = 0; *(uint8_t*)0x200000006c90 = 0; *(uint8_t*)0x200000006c91 = 9; *(uint8_t*)0x200000006c92 = 5; *(uint8_t*)0x200000006c93 = 6; *(uint8_t*)0x200000006c94 = 2; *(uint16_t*)0x200000006c95 = 0x200; *(uint8_t*)0x200000006c97 = 0; *(uint8_t*)0x200000006c98 = 0; *(uint8_t*)0x200000006c99 = 0; res = -1; res = syz_usb_connect_ath9k(/*speed=*/3, /*dev_len=*/0x5a, /*dev=*/0x200000006c40, /*conn_descs=*/0); if (res != -1) r[38] = res; break; case 56: *(uint8_t*)0x200000006cc0 = 0x12; *(uint8_t*)0x200000006cc1 = 1; *(uint16_t*)0x200000006cc2 = 0x310; *(uint8_t*)0x200000006cc4 = 2; *(uint8_t*)0x200000006cc5 = 0; *(uint8_t*)0x200000006cc6 = 0; *(uint8_t*)0x200000006cc7 = 8; *(uint16_t*)0x200000006cc8 = 0x525; *(uint16_t*)0x200000006cca = 0xa4a1; *(uint16_t*)0x200000006ccc = 0x40; *(uint8_t*)0x200000006cce = 1; *(uint8_t*)0x200000006ccf = 2; *(uint8_t*)0x200000006cd0 = 3; *(uint8_t*)0x200000006cd1 = 1; *(uint8_t*)0x200000006cd2 = 9; *(uint8_t*)0x200000006cd3 = 2; *(uint16_t*)0x200000006cd4 = 0x7d; *(uint8_t*)0x200000006cd6 = 1; *(uint8_t*)0x200000006cd7 = 1; *(uint8_t*)0x200000006cd8 = 6; *(uint8_t*)0x200000006cd9 = 0x10; *(uint8_t*)0x200000006cda = 0xb; *(uint8_t*)0x200000006cdb = 9; *(uint8_t*)0x200000006cdc = 4; *(uint8_t*)0x200000006cdd = 0; *(uint8_t*)0x200000006cde = 4; *(uint8_t*)0x200000006cdf = 3; *(uint8_t*)0x200000006ce0 = 2; *(uint8_t*)0x200000006ce1 = 6; *(uint8_t*)0x200000006ce2 = 0; *(uint8_t*)0x200000006ce3 = 0xe; *(uint8_t*)0x200000006ce4 = 0xb; *(uint8_t*)0x200000006ce5 = 0x24; *(uint8_t*)0x200000006ce6 = 6; *(uint8_t*)0x200000006ce7 = 0; *(uint8_t*)0x200000006ce8 = 0; memcpy((void*)0x200000006ce9, "\xd6\x01\x32\xf1\x49\xc6", 6); *(uint8_t*)0x200000006cef = 5; *(uint8_t*)0x200000006cf0 = 0x24; *(uint8_t*)0x200000006cf1 = 0; *(uint16_t*)0x200000006cf2 = 0xbb8; *(uint8_t*)0x200000006cf4 = 0xd; *(uint8_t*)0x200000006cf5 = 0x24; *(uint8_t*)0x200000006cf6 = 0xf; *(uint8_t*)0x200000006cf7 = 1; *(uint32_t*)0x200000006cf8 = 7; *(uint16_t*)0x200000006cfc = 0x32a; *(uint16_t*)0x200000006cfe = 8; *(uint8_t*)0x200000006d00 = 0x1f; *(uint8_t*)0x200000006d01 = 5; *(uint8_t*)0x200000006d02 = 0x24; *(uint8_t*)0x200000006d03 = 0x15; *(uint16_t*)0x200000006d04 = 0x101; *(uint8_t*)0x200000006d06 = 0x15; *(uint8_t*)0x200000006d07 = 0x24; *(uint8_t*)0x200000006d08 = 0x12; *(uint16_t*)0x200000006d09 = 0xfffc; *(uint64_t*)0x200000006d0b = 0x14f5e048ba817a3; *(uint64_t*)0x200000006d13 = 0x2a397ecbffc007a6; *(uint8_t*)0x200000006d1b = 7; *(uint8_t*)0x200000006d1c = 0x24; *(uint8_t*)0x200000006d1d = 0xa; *(uint8_t*)0x200000006d1e = 0xb; *(uint8_t*)0x200000006d1f = 9; *(uint8_t*)0x200000006d20 = 0xf; *(uint8_t*)0x200000006d21 = 2; *(uint8_t*)0x200000006d22 = 5; *(uint8_t*)0x200000006d23 = 0x24; *(uint8_t*)0x200000006d24 = 1; *(uint8_t*)0x200000006d25 = 1; *(uint8_t*)0x200000006d26 = -1; *(uint8_t*)0x200000006d27 = 5; *(uint8_t*)0x200000006d28 = 0x24; *(uint8_t*)0x200000006d29 = 0x15; *(uint16_t*)0x200000006d2a = 0x7ff; *(uint8_t*)0x200000006d2c = 8; *(uint8_t*)0x200000006d2d = 0x24; *(uint8_t*)0x200000006d2e = 0x1c; *(uint16_t*)0x200000006d2f = 5; *(uint8_t*)0x200000006d31 = 0x32; *(uint16_t*)0x200000006d32 = 0xa; *(uint8_t*)0x200000006d34 = 9; *(uint8_t*)0x200000006d35 = 5; *(uint8_t*)0x200000006d36 = 0x81; *(uint8_t*)0x200000006d37 = 3; *(uint16_t*)0x200000006d38 = 0x10; *(uint8_t*)0x200000006d3a = 7; *(uint8_t*)0x200000006d3b = 0x99; *(uint8_t*)0x200000006d3c = 0xb2; *(uint8_t*)0x200000006d3d = 9; *(uint8_t*)0x200000006d3e = 5; *(uint8_t*)0x200000006d3f = 0x82; *(uint8_t*)0x200000006d40 = 2; *(uint16_t*)0x200000006d41 = 8; *(uint8_t*)0x200000006d43 = 0x1a; *(uint8_t*)0x200000006d44 = 7; *(uint8_t*)0x200000006d45 = 0xc4; *(uint8_t*)0x200000006d46 = 9; *(uint8_t*)0x200000006d47 = 5; *(uint8_t*)0x200000006d48 = 3; *(uint8_t*)0x200000006d49 = 2; *(uint16_t*)0x200000006d4a = 0x3ff; *(uint8_t*)0x200000006d4c = 0xa6; *(uint8_t*)0x200000006d4d = 3; *(uint8_t*)0x200000006d4e = 0xa7; *(uint32_t*)0x200000007240 = 0xa; *(uint64_t*)0x200000007244 = 0x200000006d80; *(uint8_t*)0x200000006d80 = 0xa; *(uint8_t*)0x200000006d81 = 6; *(uint16_t*)0x200000006d82 = 0x300; *(uint8_t*)0x200000006d84 = 0xfb; *(uint8_t*)0x200000006d85 = 3; *(uint8_t*)0x200000006d86 = 0xc; *(uint8_t*)0x200000006d87 = -1; *(uint8_t*)0x200000006d88 = 1; *(uint8_t*)0x200000006d89 = 0; *(uint32_t*)0x20000000724c = 0x3c; *(uint64_t*)0x200000007250 = 0x200000006dc0; *(uint8_t*)0x200000006dc0 = 5; *(uint8_t*)0x200000006dc1 = 0xf; *(uint16_t*)0x200000006dc2 = 0x3c; *(uint8_t*)0x200000006dc4 = 6; *(uint8_t*)0x200000006dc5 = 7; *(uint8_t*)0x200000006dc6 = 0x10; *(uint8_t*)0x200000006dc7 = 2; STORE_BY_BITMASK(uint32_t, , 0x200000006dc8, 4, 0, 8); STORE_BY_BITMASK(uint32_t, , 0x200000006dc9, 7, 0, 4); STORE_BY_BITMASK(uint32_t, , 0x200000006dc9, 7, 4, 4); STORE_BY_BITMASK(uint32_t, , 0x200000006dca, 0x56a9, 0, 16); *(uint8_t*)0x200000006dcc = 0xb; *(uint8_t*)0x200000006dcd = 0x10; *(uint8_t*)0x200000006dce = 1; *(uint8_t*)0x200000006dcf = 4; *(uint16_t*)0x200000006dd0 = 0x42; *(uint8_t*)0x200000006dd2 = 2; *(uint8_t*)0x200000006dd3 = 3; *(uint16_t*)0x200000006dd4 = 0x63ac; *(uint8_t*)0x200000006dd6 = 9; *(uint8_t*)0x200000006dd7 = 3; *(uint8_t*)0x200000006dd8 = 0x10; *(uint8_t*)0x200000006dd9 = 0xb; *(uint8_t*)0x200000006dda = 7; *(uint8_t*)0x200000006ddb = 0x10; *(uint8_t*)0x200000006ddc = 2; STORE_BY_BITMASK(uint32_t, , 0x200000006ddd, 0x1a, 0, 8); STORE_BY_BITMASK(uint32_t, , 0x200000006dde, 7, 0, 4); STORE_BY_BITMASK(uint32_t, , 0x200000006dde, 0xb, 4, 4); STORE_BY_BITMASK(uint32_t, , 0x200000006ddf, 0xd5, 0, 16); *(uint8_t*)0x200000006de1 = 0x10; *(uint8_t*)0x200000006de2 = 0x10; *(uint8_t*)0x200000006de3 = 0xa; *(uint8_t*)0x200000006de4 = 0x7f; STORE_BY_BITMASK(uint32_t, , 0x200000006de5, 1, 0, 5); STORE_BY_BITMASK(uint32_t, , 0x200000006de5, 0x12f, 5, 27); *(uint16_t*)0x200000006de9 = 0xf00; *(uint16_t*)0x200000006deb = 1; *(uint32_t*)0x200000006ded = 0x3fc0; *(uint8_t*)0x200000006df1 = 0xb; *(uint8_t*)0x200000006df2 = 0x10; *(uint8_t*)0x200000006df3 = 1; *(uint8_t*)0x200000006df4 = 8; *(uint16_t*)0x200000006df5 = 0x40; *(uint8_t*)0x200000006df7 = 7; *(uint8_t*)0x200000006df8 = 5; *(uint16_t*)0x200000006df9 = 2; *(uint8_t*)0x200000006dfb = 4; *(uint32_t*)0x200000007258 = 8; *(uint32_t*)0x20000000725c = 0x78; *(uint64_t*)0x200000007260 = 0x200000006e00; *(uint8_t*)0x200000006e00 = 0x78; *(uint8_t*)0x200000006e01 = 3; memcpy((void*)0x200000006e02, "\xd7\xb4\xca\xdb\x72\xdc\xe2\x7c\xa7\xfb\x52\x09\xaa\xd1\xb3\x58\x5c\x81\x88\xf0\x61\x26\xd3\xf1\x8e\xdd\x4c\xfa\x47\xad\xdb\xd2\xa6\x71\x5d\xd4\xad\xfa\x69\x7f\x02\xbc\xb0\x89\xed\x20\x13\x26\x88\x85\xf9\xc7\x85\xbd\x7c\x5d\x4e\xe5\x0d\xe3\xce\xcd\x7a\x9d\x0b\x7b\x2e\x70\x82\x26\xe8\xac\xb1\xe9\x08\xb1\xf5\xc0\xc2\xa8\x13\x24\x65\xe4\x51\xfe\x49\xf1\x5e\x60\xc8\xd3\xb9\xc8\x43\x05\xd0\xdd\x8f\x63\x44\x80\x05\x02\x59\xca\xc3\xce\x9c\xfc\x95\x09\x2b\xd7\xe4\x91\x86\x6d", 118); *(uint32_t*)0x200000007268 = 0x13; *(uint64_t*)0x20000000726c = 0x200000006e80; *(uint8_t*)0x200000006e80 = 0x13; *(uint8_t*)0x200000006e81 = 3; memcpy((void*)0x200000006e82, "\x7d\x97\xd9\xeb\x8a\xf2\x94\x3b\x99\x85\xd3\x0c\xaa\xea\xd8\x9b\x5a", 17); *(uint32_t*)0x200000007274 = 4; *(uint64_t*)0x200000007278 = 0x200000006ec0; *(uint8_t*)0x200000006ec0 = 4; *(uint8_t*)0x200000006ec1 = 3; *(uint16_t*)0x200000006ec2 = 0x44a; *(uint32_t*)0x200000007280 = 4; *(uint64_t*)0x200000007284 = 0x200000006f00; *(uint8_t*)0x200000006f00 = 4; *(uint8_t*)0x200000006f01 = 3; *(uint16_t*)0x200000006f02 = 0x1c09; *(uint32_t*)0x20000000728c = 0x93; *(uint64_t*)0x200000007290 = 0x200000006f40; *(uint8_t*)0x200000006f40 = 0x93; *(uint8_t*)0x200000006f41 = 3; memcpy((void*)0x200000006f42, "\xa7\xe5\x52\x92\x38\xf7\x96\xc9\x00\x0c\x75\x3f\x41\xb8\x18\x31\x40\xf3\x91\x4b\x76\xbf\x1c\x42\x8e\xbe\x8d\x39\xc6\xf0\x72\xb4\x81\xec\xad\x74\x62\x74\xe7\xc5\x38\x79\x0d\x8c\x73\x0d\x20\x51\x7a\x22\x44\xa3\x78\x1b\x11\x5c\x07\xd4\x0e\x9e\xc9\xc0\x59\xf1\x2d\x0d\x15\xf4\x6c\xcf\x0c\xde\x26\xef\xa9\xd0\x2a\x11\x9e\x2c\xc5\x62\x7c\x7f\x42\x41\x24\x4d\x08\x43\xef\x00\x18\xb1\x2f\xc3\xcd\x46\x7b\x5f\xdc\xe5\x8a\x69\x75\xd0\x7a\xc3\x52\xa4\x2f\x16\x15\x17\x8d\xcb\x09\x90\xae\xca\x46\x46\x13\x06\x81\x6b\xec\xde\xb8\x96\xba\xc7\x65\xde\xd8\x1e\xbd\x75\xba\x4d\x97\x22\x9b\x15\xa9", 145); *(uint32_t*)0x200000007298 = 0xc2; *(uint64_t*)0x20000000729c = 0x200000007000; *(uint8_t*)0x200000007000 = 0xc2; *(uint8_t*)0x200000007001 = 3; memcpy((void*)0x200000007002, "\xd5\xa3\xd4\x83\x01\x2b\x31\xe4\x9d\xfa\x33\xfd\x95\x93\xb4\xb6\x68\xaa\x6f\x3f\x39\x30\x18\x37\xd9\x51\xda\xf2\x56\x31\x68\x19\xf5\xe7\x1f\xa6\x51\xbb\x06\xb2\xaf\x65\xaf\x27\xc7\xbf\x0f\xda\x1e\xaa\x1e\x32\x23\x1b\x75\xf4\xd0\x6d\x49\x23\xc7\x60\x13\xe9\xd7\x6a\x12\x20\x28\x16\xff\x87\x40\xa9\xfb\x4f\x2e\xce\xb2\x7b\xd2\xe1\xab\x1e\x7b\xd4\xba\x73\x14\xb3\x3d\x15\xe0\xfe\x65\xaa\x2b\x2e\x7f\xfb\x32\x36\xcb\x61\x54\x93\x39\x1f\xea\xb3\xbf\xb8\x28\x18\x2f\xb6\x0c\x4f\xd6\xfe\xf4\x22\xe1\x06\xf3\x84\xbe\x63\x39\x05\xca\x1a\xaf\x83\xd9\xdd\xb2\xa2\x90\x2e\x2a\x11\x7d\xe4\xe5\x96\x14\x58\x09\xb3\xb3\x4b\x1e\xa4\x32\xb4\x12\x39\x1f\xfb\x25\xac\x25\x5e\x7d\xa1\x1d\x99\x4e\x7e\x9e\x98\xe0\x72\x3a\x27\x57\xe5\x80\x95\x9d\xae\x6f\xa7\xac\x2a\xfb\x8d\xc5\x38\x4b\x4a", 192); *(uint32_t*)0x2000000072a4 = 0x5b; *(uint64_t*)0x2000000072a8 = 0x200000007100; *(uint8_t*)0x200000007100 = 0x5b; *(uint8_t*)0x200000007101 = 3; memcpy((void*)0x200000007102, "\xa7\x94\x09\x09\x68\xe4\x6e\x97\xb7\x26\x9f\xca\xe0\xf8\x18\xbf\x9a\x99\xa5\x0d\xe6\x0e\x5c\xda\x68\x47\x21\xbe\x6d\xc3\x48\x20\xf9\x12\xc3\x38\xd7\xdc\x8a\xc5\x0d\x93\xfc\x92\xa2\xeb\xde\x1a\x02\x65\x20\x89\x72\x66\x08\xa9\xe5\x87\x7f\x4c\xac\xf9\x1b\x9e\xec\x5b\x5e\xb2\xfc\x7f\xa7\xbb\x3d\x26\x60\x75\x37\xf0\xe5\x5d\x00\x79\x3e\x7c\xf1\x3b\xbb\x36\x7e", 89); *(uint32_t*)0x2000000072b0 = 0x90; *(uint64_t*)0x2000000072b4 = 0x200000007180; *(uint8_t*)0x200000007180 = 0x90; *(uint8_t*)0x200000007181 = 3; memcpy((void*)0x200000007182, "\xf9\x92\x6b\x0d\xae\x8c\x46\x23\x52\x10\x5e\xd1\xc4\xd3\xff\x50\xcc\x9c\xe9\x82\xc3\x97\xe9\x2e\x57\x61\x01\x31\x71\x90\xc2\x32\x7a\x2b\xa7\x23\x84\x41\x49\xe5\x5f\x4b\x96\x1d\x0f\x0d\xef\xbc\x7e\xdb\x70\xf5\xd6\x11\x69\x07\x42\x65\xac\xd8\x1c\xee\xc5\xa1\x5b\x66\xa5\xe5\x00\x92\x36\xd0\x62\x99\x4a\xf9\xaf\xcb\xe0\x47\x36\xaa\xad\x6b\xb5\x5c\xb3\x0e\x05\x7c\x42\xd0\xdf\x74\x81\x60\x3c\x3c\x95\x9b\x5e\x4e\x20\xf0\x53\x82\xa9\xd9\xad\x4c\x01\x68\x0a\xe3\x59\x7e\xf4\x03\xde\xdf\x0b\x6c\x53\xfd\xc7\x0d\x13\xed\x11\x6e\xf9\xea\x90\x20\x93\xf1\xc9\xf4\xaf\x4c\xec\x25", 142); res = -1; res = syz_usb_connect(/*speed=USB_SPEED_SUPER_PLUS*/6, /*dev_len=*/0x8f, /*dev=*/0x200000006cc0, /*conn_descs=*/0x200000007240); if (res != -1) r[39] = res; break; case 57: *(uint32_t*)0x200000007480 = 0x2c; *(uint64_t*)0x200000007484 = 0x2000000072c0; *(uint8_t*)0x2000000072c0 = 0x40; *(uint8_t*)0x2000000072c1 = 7; *(uint32_t*)0x2000000072c2 = 0x1b; *(uint8_t*)0x2000000072c6 = 0x1b; *(uint8_t*)0x2000000072c7 = 0xa; memcpy((void*)0x2000000072c8, "\x90\x73\x0f\x1d\x9e\x91\xd2\xe1\xdf\x57\x71\x43\xe1\x8c\x68\x0e\xac\xe6\xd6\xc1\x22\x99\x24\x61\x28", 25); *(uint64_t*)0x20000000748c = 0x200000007300; *(uint8_t*)0x200000007300 = 0; *(uint8_t*)0x200000007301 = 3; *(uint32_t*)0x200000007302 = 0x44; *(uint8_t*)0x200000007306 = 0x44; *(uint8_t*)0x200000007307 = 3; memcpy((void*)0x200000007308, "\x87\xd7\x4d\xd4\x60\x96\x80\x9a\x8f\x49\x88\xdd\xaa\x95\xa5\x32\xfb\xc2\x2d\x85\x85\xd1\x59\x28\x57\xad\x0a\xb0\x0c\x17\xa4\xfe\xf3\xb2\x29\xa0\x2f\xe0\xe3\x64\x93\x16\xbe\xd9\xf4\x4f\x58\x8b\x1f\x0b\x47\xbc\x86\x70\x51\x29\x44\x09\x38\xbd\x68\xa2\x9a\x84\xf8\x29", 66); *(uint64_t*)0x200000007494 = 0x200000007380; *(uint8_t*)0x200000007380 = 0; *(uint8_t*)0x200000007381 = 0xf; *(uint32_t*)0x200000007382 = 0x41; *(uint8_t*)0x200000007386 = 5; *(uint8_t*)0x200000007387 = 0xf; *(uint16_t*)0x200000007388 = 0x41; *(uint8_t*)0x20000000738a = 4; *(uint8_t*)0x20000000738b = 0x20; *(uint8_t*)0x20000000738c = 0x10; *(uint8_t*)0x20000000738d = 0xa; *(uint8_t*)0x20000000738e = 0; STORE_BY_BITMASK(uint32_t, , 0x20000000738f, 5, 0, 5); STORE_BY_BITMASK(uint32_t, , 0x20000000738f, 0xe85, 5, 27); *(uint16_t*)0x200000007393 = 0xf00; *(uint16_t*)0x200000007395 = 3; *(uint32_t*)0x200000007397 = 0xff00a0; *(uint32_t*)0x20000000739b = 0xff00f0; *(uint32_t*)0x20000000739f = 0x30; *(uint32_t*)0x2000000073a3 = 0xf; *(uint32_t*)0x2000000073a7 = 0xdfbf; *(uint8_t*)0x2000000073ab = 7; *(uint8_t*)0x2000000073ac = 0x10; *(uint8_t*)0x2000000073ad = 2; STORE_BY_BITMASK(uint32_t, , 0x2000000073ae, 4, 0, 8); STORE_BY_BITMASK(uint32_t, , 0x2000000073af, 4, 0, 4); STORE_BY_BITMASK(uint32_t, , 0x2000000073af, 1, 4, 4); STORE_BY_BITMASK(uint32_t, , 0x2000000073b0, 0xff, 0, 16); *(uint8_t*)0x2000000073b2 = 0xb; *(uint8_t*)0x2000000073b3 = 0x10; *(uint8_t*)0x2000000073b4 = 1; *(uint8_t*)0x2000000073b5 = 2; *(uint16_t*)0x2000000073b6 = 1; *(uint8_t*)0x2000000073b8 = 1; *(uint8_t*)0x2000000073b9 = 3; *(uint16_t*)0x2000000073ba = 9; *(uint8_t*)0x2000000073bc = 8; *(uint8_t*)0x2000000073bd = 0xa; *(uint8_t*)0x2000000073be = 0x10; *(uint8_t*)0x2000000073bf = 3; *(uint8_t*)0x2000000073c0 = 2; *(uint16_t*)0x2000000073c1 = 4; *(uint8_t*)0x2000000073c3 = 3; *(uint8_t*)0x2000000073c4 = 0xb6; *(uint16_t*)0x2000000073c5 = 5; *(uint64_t*)0x20000000749c = 0x200000007400; *(uint8_t*)0x200000007400 = 0x20; *(uint8_t*)0x200000007401 = 0x29; *(uint32_t*)0x200000007402 = 0xf; *(uint8_t*)0x200000007406 = 0xf; *(uint8_t*)0x200000007407 = 0x29; *(uint8_t*)0x200000007408 = 0xf; *(uint16_t*)0x200000007409 = 4; *(uint8_t*)0x20000000740b = 6; *(uint8_t*)0x20000000740c = 0x32; memcpy((void*)0x20000000740d, "\xb2\xc8\x4f\x72", 4); memcpy((void*)0x200000007411, "\xf5\xfb\x7b\x90", 4); *(uint64_t*)0x2000000074a4 = 0x200000007440; *(uint8_t*)0x200000007440 = 0x20; *(uint8_t*)0x200000007441 = 0x2a; *(uint32_t*)0x200000007442 = 0xc; *(uint8_t*)0x200000007446 = 0xc; *(uint8_t*)0x200000007447 = 0x2a; *(uint8_t*)0x200000007448 = 0x3a; *(uint16_t*)0x200000007449 = 0x60; *(uint8_t*)0x20000000744b = 4; *(uint8_t*)0x20000000744c = 4; *(uint8_t*)0x20000000744d = 7; *(uint16_t*)0x20000000744e = 0x8001; *(uint16_t*)0x200000007450 = 8; *(uint32_t*)0x200000007980 = 0x84; *(uint64_t*)0x200000007984 = 0x2000000074c0; *(uint8_t*)0x2000000074c0 = 0; *(uint8_t*)0x2000000074c1 = 0; *(uint32_t*)0x2000000074c2 = 0xcf; memcpy((void*)0x2000000074c6, "\x9f\x51\xc6\xee\x54\xbf\xc1\xfc\x30\xd7\x87\x49\x9a\xb2\x44\x93\xc2\xf3\x0f\x78\xfe\x08\x8e\x72\x4a\xd2\x9b\xad\xb6\xc2\x40\x68\x74\xa9\x09\xd8\x0e\x00\x00\x75\xbb\xe9\x2f\x6f\x4e\x8b\x35\x14\x48\x1d\x12\xb8\x69\xde\xb6\xf4\x7f\x3b\x45\x83\x69\xb7\xf0\x24\xfc\xc0\x23\x19\xe3\x8c\xb7\x46\x7c\x76\xb3\x70\xd3\x78\xee\x02\x56\xda\xa3\xac\xea\x1f\x71\xbe\x5e\x4c\x7d\x8a\x50\x03\x7b\xa8\x4e\x62\x44\x5b\xbd\x99\x0a\x26\xb4\x4f\x60\x19\x8d\x63\x50\x5f\xbf\x00\x5b\x96\x63\x7a\xbf\x5e\xb6\x92\xa2\xed\x0d\x58\x26\x92\xe3\xf2\x59\x38\x7e\xd9\xd1\x95\x59\x17\xdc\x53\xa2\x46\xeb\x20\xe2\x81\xe7\x83\x86\xed\x87\x34\xb8\x10\x75\xe4\x3b\x5b\x3e\x15\xea\x60\xdb\xd4\x97\xe0\x7a\xd8\x84\x79\x92\xdd\x87\x83\x1b\x20\xd0\x52\x63\xc1\x08\xd7\x01\x17\xe5\x21\x70\xef\xac\x17\x77\xd3\xd3\x76\x87\x63\x58\xc2\x29\x71\x72\xb2\xa0\x23\xb5\x2c\x05", 207); *(uint64_t*)0x20000000798c = 0x2000000075c0; *(uint8_t*)0x2000000075c0 = 0; *(uint8_t*)0x2000000075c1 = 0xa; *(uint32_t*)0x2000000075c2 = 1; *(uint8_t*)0x2000000075c6 = 2; *(uint64_t*)0x200000007994 = 0x200000007600; *(uint8_t*)0x200000007600 = 0; *(uint8_t*)0x200000007601 = 8; *(uint32_t*)0x200000007602 = 1; *(uint8_t*)0x200000007606 = 0xfc; *(uint64_t*)0x20000000799c = 0x200000007640; *(uint8_t*)0x200000007640 = 0x20; *(uint8_t*)0x200000007641 = 0; *(uint32_t*)0x200000007642 = 4; *(uint16_t*)0x200000007646 = 3; *(uint16_t*)0x200000007648 = 1; *(uint64_t*)0x2000000079a4 = 0x200000007680; *(uint8_t*)0x200000007680 = 0x20; *(uint8_t*)0x200000007681 = 0; *(uint32_t*)0x200000007682 = 4; *(uint16_t*)0x200000007686 = 0x1d20; *(uint16_t*)0x200000007688 = 0x20; *(uint64_t*)0x2000000079ac = 0x2000000076c0; *(uint8_t*)0x2000000076c0 = 0x40; *(uint8_t*)0x2000000076c1 = 7; *(uint32_t*)0x2000000076c2 = 2; *(uint16_t*)0x2000000076c6 = 0xfff8; *(uint64_t*)0x2000000079b4 = 0x200000007700; *(uint8_t*)0x200000007700 = 0x40; *(uint8_t*)0x200000007701 = 9; *(uint32_t*)0x200000007702 = 1; *(uint8_t*)0x200000007706 = 0xd; *(uint64_t*)0x2000000079bc = 0x200000007740; *(uint8_t*)0x200000007740 = 0x40; *(uint8_t*)0x200000007741 = 0xb; *(uint32_t*)0x200000007742 = 2; memcpy((void*)0x200000007746, "\x22\x89", 2); *(uint64_t*)0x2000000079c4 = 0x200000007780; *(uint8_t*)0x200000007780 = 0x40; *(uint8_t*)0x200000007781 = 0xf; *(uint32_t*)0x200000007782 = 2; *(uint16_t*)0x200000007786 = 2; *(uint64_t*)0x2000000079cc = 0x2000000077c0; *(uint8_t*)0x2000000077c0 = 0x40; *(uint8_t*)0x2000000077c1 = 0x13; *(uint32_t*)0x2000000077c2 = 6; memset((void*)0x2000000077c6, 255, 6); *(uint64_t*)0x2000000079d4 = 0x200000007800; *(uint8_t*)0x200000007800 = 0x40; *(uint8_t*)0x200000007801 = 0x17; *(uint32_t*)0x200000007802 = 6; memcpy((void*)0x200000007806, "\xee\xfa\x7a\x62\x01\x65", 6); *(uint64_t*)0x2000000079dc = 0x200000007840; *(uint8_t*)0x200000007840 = 0x40; *(uint8_t*)0x200000007841 = 0x19; *(uint32_t*)0x200000007842 = 2; memcpy((void*)0x200000007846, "\x01\xd3", 2); *(uint64_t*)0x2000000079e4 = 0x200000007880; *(uint8_t*)0x200000007880 = 0x40; *(uint8_t*)0x200000007881 = 0x1a; *(uint32_t*)0x200000007882 = 2; *(uint16_t*)0x200000007886 = 5; *(uint64_t*)0x2000000079ec = 0x2000000078c0; *(uint8_t*)0x2000000078c0 = 0x40; *(uint8_t*)0x2000000078c1 = 0x1c; *(uint32_t*)0x2000000078c2 = 1; *(uint8_t*)0x2000000078c6 = -1; *(uint64_t*)0x2000000079f4 = 0x200000007900; *(uint8_t*)0x200000007900 = 0x40; *(uint8_t*)0x200000007901 = 0x1e; *(uint32_t*)0x200000007902 = 1; *(uint8_t*)0x200000007906 = 0xf7; *(uint64_t*)0x2000000079fc = 0x200000007940; *(uint8_t*)0x200000007940 = 0x40; *(uint8_t*)0x200000007941 = 0x21; *(uint32_t*)0x200000007942 = 1; *(uint8_t*)0x200000007946 = 0xb; syz_usb_control_io(/*fd=*/r[39], /*descs=*/0x200000007480, /*resps=*/0x200000007980); break; case 58: syz_usb_disconnect(/*fd=*/r[38]); break; case 59: *(uint8_t*)0x200000007a40 = 0x12; *(uint8_t*)0x200000007a41 = 1; *(uint16_t*)0x200000007a42 = 0x110; *(uint8_t*)0x200000007a44 = 0; *(uint8_t*)0x200000007a45 = 0; *(uint8_t*)0x200000007a46 = 0; *(uint8_t*)0x200000007a47 = -1; *(uint16_t*)0x200000007a48 = 0x46d; *(uint16_t*)0x200000007a4a = 0xc08d; *(uint16_t*)0x200000007a4c = 0x40; *(uint8_t*)0x200000007a4e = 1; *(uint8_t*)0x200000007a4f = 2; *(uint8_t*)0x200000007a50 = 3; *(uint8_t*)0x200000007a51 = 1; *(uint8_t*)0x200000007a52 = 9; *(uint8_t*)0x200000007a53 = 2; *(uint16_t*)0x200000007a54 = 0x2d; *(uint8_t*)0x200000007a56 = 1; *(uint8_t*)0x200000007a57 = 1; *(uint8_t*)0x200000007a58 = 4; *(uint8_t*)0x200000007a59 = 0x50; *(uint8_t*)0x200000007a5a = 0x10; *(uint8_t*)0x200000007a5b = 9; *(uint8_t*)0x200000007a5c = 4; *(uint8_t*)0x200000007a5d = 0; *(uint8_t*)0x200000007a5e = 0xf9; *(uint8_t*)0x200000007a5f = 2; *(uint8_t*)0x200000007a60 = 3; *(uint8_t*)0x200000007a61 = 1; *(uint8_t*)0x200000007a62 = 2; *(uint8_t*)0x200000007a63 = 5; *(uint8_t*)0x200000007a64 = 9; *(uint8_t*)0x200000007a65 = 0x21; *(uint16_t*)0x200000007a66 = 0x81; *(uint8_t*)0x200000007a68 = 8; *(uint8_t*)0x200000007a69 = 1; *(uint8_t*)0x200000007a6a = 0x22; *(uint16_t*)0x200000007a6b = 0x6e7; *(uint8_t*)0x200000007a6d = 9; *(uint8_t*)0x200000007a6e = 5; *(uint8_t*)0x200000007a6f = 0x81; *(uint8_t*)0x200000007a70 = 3; *(uint16_t*)0x200000007a71 = 0x10; *(uint8_t*)0x200000007a73 = 8; *(uint8_t*)0x200000007a74 = 0xc; *(uint8_t*)0x200000007a75 = 0x6e; *(uint8_t*)0x200000007a76 = 9; *(uint8_t*)0x200000007a77 = 5; *(uint8_t*)0x200000007a78 = 2; *(uint8_t*)0x200000007a79 = 3; *(uint16_t*)0x200000007a7a = 0x200; *(uint8_t*)0x200000007a7c = 8; *(uint8_t*)0x200000007a7d = 1; *(uint8_t*)0x200000007a7e = 0x50; *(uint32_t*)0x200000007f40 = 0xa; *(uint64_t*)0x200000007f44 = 0x200000007a80; *(uint8_t*)0x200000007a80 = 0xa; *(uint8_t*)0x200000007a81 = 6; *(uint16_t*)0x200000007a82 = 0x310; *(uint8_t*)0x200000007a84 = 0x48; *(uint8_t*)0x200000007a85 = 0xa5; *(uint8_t*)0x200000007a86 = 0xca; *(uint8_t*)0x200000007a87 = 8; *(uint8_t*)0x200000007a88 = 0x10; *(uint8_t*)0x200000007a89 = 0; *(uint32_t*)0x200000007f4c = 0x30; *(uint64_t*)0x200000007f50 = 0x200000007ac0; *(uint8_t*)0x200000007ac0 = 5; *(uint8_t*)0x200000007ac1 = 0xf; *(uint16_t*)0x200000007ac2 = 0x30; *(uint8_t*)0x200000007ac4 = 4; *(uint8_t*)0x200000007ac5 = 0xa; *(uint8_t*)0x200000007ac6 = 0x10; *(uint8_t*)0x200000007ac7 = 3; *(uint8_t*)0x200000007ac8 = 0; *(uint16_t*)0x200000007ac9 = 5; *(uint8_t*)0x200000007acb = 0; *(uint8_t*)0x200000007acc = 1; *(uint16_t*)0x200000007acd = 0x8a; *(uint8_t*)0x200000007acf = 0x10; *(uint8_t*)0x200000007ad0 = 0x10; *(uint8_t*)0x200000007ad1 = 0xa; *(uint8_t*)0x200000007ad2 = 0xa; STORE_BY_BITMASK(uint32_t, , 0x200000007ad3, 1, 0, 5); STORE_BY_BITMASK(uint32_t, , 0x200000007ad3, 0, 5, 27); *(uint16_t*)0x200000007ad7 = 0xf00f; *(uint16_t*)0x200000007ad9 = 7; *(uint32_t*)0x200000007adb = 0x3f00; *(uint8_t*)0x200000007adf = 0xa; *(uint8_t*)0x200000007ae0 = 0x10; *(uint8_t*)0x200000007ae1 = 3; *(uint8_t*)0x200000007ae2 = 0; *(uint16_t*)0x200000007ae3 = 4; *(uint8_t*)0x200000007ae5 = 4; *(uint8_t*)0x200000007ae6 = 8; *(uint16_t*)0x200000007ae7 = 0xfff8; *(uint8_t*)0x200000007ae9 = 7; *(uint8_t*)0x200000007aea = 0x10; *(uint8_t*)0x200000007aeb = 2; STORE_BY_BITMASK(uint32_t, , 0x200000007aec, 4, 0, 8); STORE_BY_BITMASK(uint32_t, , 0x200000007aed, 0, 0, 4); STORE_BY_BITMASK(uint32_t, , 0x200000007aed, 5, 4, 4); STORE_BY_BITMASK(uint32_t, , 0x200000007aee, 0x8001, 0, 16); *(uint32_t*)0x200000007f58 = 0xa; *(uint32_t*)0x200000007f5c = 4; *(uint64_t*)0x200000007f60 = 0x200000007b00; *(uint8_t*)0x200000007b00 = 4; *(uint8_t*)0x200000007b01 = 3; *(uint16_t*)0x200000007b02 = 0x437; *(uint32_t*)0x200000007f68 = 0xf2; *(uint64_t*)0x200000007f6c = 0x200000007b40; *(uint8_t*)0x200000007b40 = 0xf2; *(uint8_t*)0x200000007b41 = 3; memcpy((void*)0x200000007b42, "\xf0\x01\x99\x69\xb3\x8f\x6a\xfa\xbd\x6c\x10\x59\x67\xf2\xb7\x9c\x11\x6b\xf5\x2e\x6a\xf5\x49\x27\x19\x39\xcb\xea\xcd\xab\x5c\x85\x03\xce\xe7\xd1\xa6\x7a\x62\xea\x49\x1b\x6b\x2f\x86\x47\x13\x3f\x15\xb8\xe9\x70\x7e\x4a\x77\x57\x7e\x8a\xfd\x8a\x12\x84\x45\x9b\x66\xc7\xbe\x93\xc4\x3e\x84\xef\xcf\xc2\xf7\x3e\x93\xd2\x95\x99\x8c\xc2\xf4\x95\xae\x5b\x1a\x3d\x5e\x12\xef\x6e\x64\x66\x4a\x3b\x5c\x79\x52\x8b\x01\x19\xf7\x8b\x0a\x61\xd8\x07\x23\x25\x37\xeb\x3d\x9c\x09\xad\xd9\x38\x23\xe6\xf8\x78\xbb\xba\x00\x89\x8b\xe1\x01\x7f\xaf\x4e\x5f\x14\xd3\x87\x40\x1c\x45\x64\x59\x54\xc0\x4f\x8c\x83\xf9\xe5\xf0\xae\x99\x13\xd9\xcc\xb8\x8e\x75\x16\xd8\x0f\x8e\x21\xc3\xb6\x10\x42\x92\x58\x16\x92\x48\xa0\x16\xde\x14\x4a\xbc\xe7\x90\x5f\x4d\xd3\xbf\x26\x98\xe9\xf3\xa5\xfe\xbc\x7c\x10\xef\x4e\xd2\x98\xe5\xf8\xfa\xcb\xb3\xc9\x34\x4b\xb3\xab\x33\x56\x8a\x0f\x64\xf4\x28\xd6\x0d\xab\xe2\xbf\xe7\x95\xdf\x06\x03\xcd\xf7\x6f\x60\x62\x41\xfd\xd8\x9c\x8f\xf9\xfe\x55\xee\x23\x95\xfd", 240); *(uint32_t*)0x200000007f74 = 4; *(uint64_t*)0x200000007f78 = 0x200000007c40; *(uint8_t*)0x200000007c40 = 4; *(uint8_t*)0x200000007c41 = 3; *(uint16_t*)0x200000007c42 = 0x2c0a; *(uint32_t*)0x200000007f80 = 0x89; *(uint64_t*)0x200000007f84 = 0x200000007c80; *(uint8_t*)0x200000007c80 = 0x89; *(uint8_t*)0x200000007c81 = 3; memcpy((void*)0x200000007c82, "\x05\xb7\x61\x5d\x7a\x2b\xa8\x3f\x59\x16\xd5\x85\xe5\x29\x06\x69\xa0\xc2\x43\xe1\xc6\x5f\x43\xd6\xc7\x68\x07\x67\xf0\xda\x68\x05\xce\x35\x66\x41\x3a\x20\xf4\xb8\x66\x4b\x77\x79\x9c\x5c\x60\x61\xd9\xd1\x90\x75\xd2\xf8\x9b\x88\x0c\xaa\x62\x2d\x3a\xa9\x10\x8e\x52\x22\xe5\x53\x36\xbf\x78\x50\xd2\xf7\x99\x0a\x13\x14\xb0\xbe\x81\xd6\x06\xf8\xa9\x9a\x67\x05\xe0\xac\x44\x87\x20\x72\x36\x6a\xba\xea\x5f\x97\xd7\xca\x08\xed\x1e\xb2\x5b\x70\x7c\x92\x99\x1e\x55\x37\xf9\x45\xaa\x40\x1d\x76\x13\x49\xb6\x28\xd6\xc9\x28\xc1\xcf\xe5\xb0\x9f\xd1\x32\x72", 135); *(uint32_t*)0x200000007f8c = 0xb8; *(uint64_t*)0x200000007f90 = 0x200000007d40; *(uint8_t*)0x200000007d40 = 0xb8; *(uint8_t*)0x200000007d41 = 3; memcpy((void*)0x200000007d42, "\xf0\x4a\x78\x64\x8b\xb1\x3a\xd6\xc5\x3b\x44\xe4\x2e\xd2\xf2\x4d\x32\x05\xbf\x51\x61\x67\x4f\xf3\x75\xec\xfa\x9f\x71\x0d\xd4\xd5\x2e\x29\x77\x9b\xc4\xc1\xd4\x1f\xaf\x1b\x2e\x02\xfa\x2c\xb4\xca\x6c\x44\x96\x81\xb5\xc8\x8b\x37\x75\xf8\x2b\xab\xde\x22\x58\xf8\xa0\x01\xd8\x11\xf8\xb6\x4c\xe0\x75\x3b\x22\x8c\x16\x18\x09\x77\x0f\x39\x16\x0b\xa4\xea\x92\x49\x0a\x38\xf8\x2c\x3f\x18\xb4\x4c\x81\xa1\x48\xc4\x8b\xbc\x4f\x71\x6e\x64\xa8\x5a\x98\x5f\x35\x70\xd6\x13\x2a\x4a\xc6\xe9\x7f\x0a\xe7\x29\x65\x82\x87\x9c\x5d\x4e\x27\x7b\xe3\xd5\x86\x7d\xc3\xdf\x26\x06\x87\x9b\xd5\x28\x12\x25\xa3\x4f\x3f\xeb\xa4\x36\xee\xc1\x6d\xdf\xbe\x61\x15\x74\xbe\x64\x5a\x71\xc5\xe8\xbe\x49\x4e\x27\x91\x83\x33\xf2\x43\x1a\xef\xf2\xe9\xfe\xd0\x60\x84\x28", 182); *(uint32_t*)0x200000007f98 = 4; *(uint64_t*)0x200000007f9c = 0x200000007e00; *(uint8_t*)0x200000007e00 = 4; *(uint8_t*)0x200000007e01 = 3; *(uint16_t*)0x200000007e02 = 0x40f; *(uint32_t*)0x200000007fa4 = 4; *(uint64_t*)0x200000007fa8 = 0x200000007e40; *(uint8_t*)0x200000007e40 = 4; *(uint8_t*)0x200000007e41 = 3; *(uint16_t*)0x200000007e42 = 0x860; *(uint32_t*)0x200000007fb0 = 4; *(uint64_t*)0x200000007fb4 = 0x200000007e80; *(uint8_t*)0x200000007e80 = 4; *(uint8_t*)0x200000007e81 = 3; *(uint16_t*)0x200000007e82 = 0xf4ef; *(uint32_t*)0x200000007fbc = 4; *(uint64_t*)0x200000007fc0 = 0x200000007ec0; *(uint8_t*)0x200000007ec0 = 4; *(uint8_t*)0x200000007ec1 = 3; *(uint16_t*)0x200000007ec2 = 0x3001; *(uint32_t*)0x200000007fc8 = 4; *(uint64_t*)0x200000007fcc = 0x200000007f00; *(uint8_t*)0x200000007f00 = 4; *(uint8_t*)0x200000007f01 = 3; *(uint16_t*)0x200000007f02 = 0x2009; res = -1; res = syz_usb_connect(/*speed=*/0, /*dev_len=*/0x3f, /*dev=*/0x200000007a40, /*conn_descs=*/0x200000007f40); if (res != -1) r[40] = res; break; case 60: syz_usb_ep_read(/*fd=*/r[40], /*ep=*/0, /*len=*/0x1000, /*data=*/0x200000008000); break; case 61: memcpy((void*)0x200000009000, "\x57\xbb\xa2\xf0\x4f\x39\x45\xda\x7a\x47\x03\x77\x10\xf6\xd5\x3d\x8d\xfa\xd8\xa9\x6c\x57\xe1\x1c\xf5\xfc\xfe\xe4\x34\xfc\xe8\x80\x38\xe1\x90\x4e\xcc\x27\x12\x33\x41\x18\xe5\x00\x2b\x0c\x10\x7c\x28\x6e\xb9\x03\x14\x23\x3f\xd5\xce\x1d\x9e\xa5\xda\x00\x76\x74\x11\x02\xd8\x85\x17\x46\x3f\xf1\x18\xbd\x93\x12\x82\x41\x2d\xe1\xf5\xea\x71\xeb\x2b\xec\x91\xb8\x2b\x7f\x7b\x64\xf8\xaa\xe1\xd5\x8e\x32\xde\x1d\xee\xb1\xc8\x26\x4d\x59\xd6\x39\xa1\x94\x5f\x00\x90\x27\x5e\x6b\xdb\xf1\x8e\x86\x68\x5c\xcb\x60\xa5\xfe\xc9\xc7\xce\xba\xc5\xd0\x5b\x5c\x84\xe6\x11\x6f\x89\xd4\x43\xfa\xd3\xce\x74\xd8\x20\x80", 148); syz_usb_ep_write(/*fd=*/r[37], /*ep=*/6, /*len=*/0x94, /*data=*/0x200000009000); break; case 62: syz_usbip_server_init(/*speed=USB_SPEED_SUPER*/5); break; } } int main(void) { syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000ul, /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/7ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x200001000000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); const char* reason; (void)reason; if ((reason = setup_fault())) printf("the reproducer may not work as expected: fault injection setup failed: %s\n", reason); if ((reason = setup_kcsan())) printf("the reproducer may not work as expected: KCSAN setup failed: %s\n", reason); use_temporary_dir(); do_sandbox_none(); return 0; } : In function 'execute_call': :6418:17: error: '__NR_socketcall' undeclared (first use in this function) :6418:17: note: each undeclared identifier is reported only once for each function it appears in At top level: cc1: note: unrecognized command-line option '-Wno-unused-command-line-argument' may have been intended to silence earlier diagnostics compiler invocation: x86_64-linux-gnu-gcc [-o /tmp/syz-executor2960803880 -DGOOS_linux=1 -DGOARCH_amd64=1 -DHOSTGOOS_linux=1 -x c - -m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -static-pie] --- FAIL: TestGenerate/linux/amd64/26 (1.39s) csource_test.go:155: --- FAIL: TestGenerate/linux/amd64/7 (1.37s) csource_test.go:155: --- FAIL: TestGenerate/linux/amd64/2 (1.41s) csource_test.go:155: --- FAIL: TestGenerate/linux/amd64/29 (1.41s) csource_test.go:155: --- FAIL: TestGenerate/linux/amd64/17 (1.43s) csource_test.go:155: --- FAIL: TestGenerate/linux/amd64/13 (1.12s) csource_test.go:155: --- FAIL: TestGenerate/linux/amd64/8 (1.46s) csource_test.go:155: --- FAIL: TestGenerate/linux/amd64/4 (1.48s) csource_test.go:155: --- FAIL: TestGenerate/linux/amd64/18 (1.49s) csource_test.go:155: --- FAIL: TestGenerate/linux/amd64/33 (0.92s) csource_test.go:155: --- FAIL: TestGenerate/linux/amd64/23 (1.50s) csource_test.go:155: --- FAIL: TestGenerate/linux/amd64/25 (1.55s) csource_test.go:155: --- FAIL: TestGenerate/linux/amd64/5 (1.22s) csource_test.go:155: --- FAIL: TestGenerate/linux/amd64/9 (1.54s) csource_test.go:155: --- FAIL: TestGenerate/linux/amd64/16 (1.57s) csource_test.go:155: --- FAIL: TestGenerate/linux/amd64/1 (1.55s) csource_test.go:155: --- FAIL: TestGenerate/linux/amd64/11 (1.57s) csource_test.go:155: --- FAIL: TestGenerate/linux/amd64/12 (1.59s) csource_test.go:155: --- FAIL: TestGenerate/linux/amd64/32 (1.60s) csource_test.go:155: --- FAIL: TestGenerate/linux/amd64/28 (1.59s) csource_test.go:155: --- FAIL: TestGenerate/linux/amd64/15 (1.59s) csource_test.go:155: --- FAIL: TestGenerate/linux/amd64/31 (1.62s) csource_test.go:155: --- FAIL: TestGenerate/linux/amd64/6 (1.66s) csource_test.go:155: FAIL FAIL github.com/google/syzkaller/pkg/csource 56.005s ok github.com/google/syzkaller/pkg/db (cached) ? github.com/google/syzkaller/pkg/debugtracer [no test files] ? github.com/google/syzkaller/pkg/declextract [no test files] ok github.com/google/syzkaller/pkg/email (cached) ok github.com/google/syzkaller/pkg/email/lore (cached) ok github.com/google/syzkaller/pkg/flatrpc (cached) ok github.com/google/syzkaller/pkg/fuzzer 28.557s ok github.com/google/syzkaller/pkg/fuzzer/queue (cached) ok github.com/google/syzkaller/pkg/gce (cached) ? github.com/google/syzkaller/pkg/gcpsecret [no test files] ? github.com/google/syzkaller/pkg/gcs [no test files] ? github.com/google/syzkaller/pkg/gcs/mocks [no test files] ? github.com/google/syzkaller/pkg/hash [no test files] ? github.com/google/syzkaller/pkg/html [no test files] ok github.com/google/syzkaller/pkg/html/pages (cached) ok github.com/google/syzkaller/pkg/html/urlutil (cached) ? github.com/google/syzkaller/pkg/ifaceprobe [no test files] ok github.com/google/syzkaller/pkg/ifuzz (cached) ok github.com/google/syzkaller/pkg/ifuzz/arm64 (cached) ? github.com/google/syzkaller/pkg/ifuzz/arm64/gen [no test files] ? github.com/google/syzkaller/pkg/ifuzz/arm64/generated [no test files] ? github.com/google/syzkaller/pkg/ifuzz/iset [no test files] ? github.com/google/syzkaller/pkg/ifuzz/powerpc [no test files] ? github.com/google/syzkaller/pkg/ifuzz/powerpc/generated [no test files] ? github.com/google/syzkaller/pkg/ifuzz/x86 [no test files] ? github.com/google/syzkaller/pkg/ifuzz/x86/gen [no test files] ? github.com/google/syzkaller/pkg/ifuzz/x86/generated [no test files] ok github.com/google/syzkaller/pkg/image 7.432s ok github.com/google/syzkaller/pkg/instance 2.363s ? github.com/google/syzkaller/pkg/kcidb [no test files] ok github.com/google/syzkaller/pkg/kconfig (cached) ? github.com/google/syzkaller/pkg/kcov [no test files] ok github.com/google/syzkaller/pkg/kd (cached) ok github.com/google/syzkaller/pkg/kfuzztest 3.078s ? github.com/google/syzkaller/pkg/kfuzztest-executor [no test files] ? github.com/google/syzkaller/pkg/kfuzztest-manager [no test files] ok github.com/google/syzkaller/pkg/log (cached) ok github.com/google/syzkaller/pkg/manager 2.375s ok github.com/google/syzkaller/pkg/mgrconfig 4.609s ok github.com/google/syzkaller/pkg/osutil (cached) ok github.com/google/syzkaller/pkg/report 11.599s ok github.com/google/syzkaller/pkg/report/crash (cached) ok github.com/google/syzkaller/pkg/repro 6.357s ok github.com/google/syzkaller/pkg/rpcserver 18.228s ? github.com/google/syzkaller/pkg/rpcserver/mocks [no test files] ? github.com/google/syzkaller/pkg/rpctype [no test files] ok github.com/google/syzkaller/pkg/runtest 41.241s ok github.com/google/syzkaller/pkg/serializer (cached) ok github.com/google/syzkaller/pkg/signal (cached) ok github.com/google/syzkaller/pkg/stat (cached) ok github.com/google/syzkaller/pkg/stat/sample (cached) ? github.com/google/syzkaller/pkg/stat/syzbotstats [no test files] ok github.com/google/syzkaller/pkg/subsystem (cached) ok github.com/google/syzkaller/pkg/subsystem/linux (cached) ok github.com/google/syzkaller/pkg/subsystem/lists (cached) ok github.com/google/syzkaller/pkg/symbolizer (cached) ? github.com/google/syzkaller/pkg/testutil [no test files] ok github.com/google/syzkaller/pkg/tool (cached) ? github.com/google/syzkaller/pkg/updater [no test files] ok github.com/google/syzkaller/pkg/validator (cached) ok github.com/google/syzkaller/pkg/vcs (cached) ok github.com/google/syzkaller/pkg/vminfo 11.321s ok github.com/google/syzkaller/prog 44.304s ok github.com/google/syzkaller/prog/test 0.827s ? github.com/google/syzkaller/sys [no test files] ? github.com/google/syzkaller/sys/darwin [no test files] ? github.com/google/syzkaller/sys/freebsd [no test files] ? github.com/google/syzkaller/sys/fuchsia [no test files] ? github.com/google/syzkaller/sys/fuchsia/fidlgen [no test files] ? github.com/google/syzkaller/sys/fuchsia/layout [no test files] ? github.com/google/syzkaller/sys/generated [no test files] ok github.com/google/syzkaller/sys/linux 1.650s ok github.com/google/syzkaller/sys/netbsd 0.165s ok github.com/google/syzkaller/sys/openbsd 0.088s ? github.com/google/syzkaller/sys/syz-extract [no test files] ? github.com/google/syzkaller/sys/syz-sysgen [no test files] ? github.com/google/syzkaller/sys/targets [no test files] ? github.com/google/syzkaller/sys/test [no test files] ? github.com/google/syzkaller/sys/trusty [no test files] ? github.com/google/syzkaller/sys/windows [no test files] ? github.com/google/syzkaller/syz-agent [no test files] ok github.com/google/syzkaller/syz-ci 6.835s ok github.com/google/syzkaller/syz-cluster/controller (cached) ok github.com/google/syzkaller/syz-cluster/dashboard (cached) ok github.com/google/syzkaller/syz-cluster/email-reporter (cached) ? github.com/google/syzkaller/syz-cluster/pkg/api [no test files] ? github.com/google/syzkaller/syz-cluster/pkg/app [no test files] ok github.com/google/syzkaller/syz-cluster/pkg/blob (cached) ok github.com/google/syzkaller/syz-cluster/pkg/controller (cached) ok github.com/google/syzkaller/syz-cluster/pkg/db (cached) ok github.com/google/syzkaller/syz-cluster/pkg/emailclient (cached) ok github.com/google/syzkaller/syz-cluster/pkg/fuzzconfig 4.432s ok github.com/google/syzkaller/syz-cluster/pkg/report (cached) ok github.com/google/syzkaller/syz-cluster/pkg/reporter (cached) ? github.com/google/syzkaller/syz-cluster/pkg/service [no test files] ok github.com/google/syzkaller/syz-cluster/pkg/triage (cached) ? github.com/google/syzkaller/syz-cluster/pkg/workflow [no test files] ? github.com/google/syzkaller/syz-cluster/reporter-server [no test files] ok github.com/google/syzkaller/syz-cluster/series-tracker (cached) ? github.com/google/syzkaller/syz-cluster/tools/db-mgmt [no test files] ? github.com/google/syzkaller/syz-cluster/tools/send-test-email [no test files] ? github.com/google/syzkaller/syz-cluster/workflow/boot-step [no test files] ? github.com/google/syzkaller/syz-cluster/workflow/build-step [no test files] ok github.com/google/syzkaller/syz-cluster/workflow/fuzz-step 2.181s ? github.com/google/syzkaller/syz-cluster/workflow/triage-step [no test files] ok github.com/google/syzkaller/syz-hub (cached) ok github.com/google/syzkaller/syz-hub/state (cached) ? github.com/google/syzkaller/syz-kfuzztest [no test files] ok github.com/google/syzkaller/syz-manager 3.262s ? github.com/google/syzkaller/tools/arm64 [no test files] ? github.com/google/syzkaller/tools/kfuzztest-gen [no test files] ? github.com/google/syzkaller/tools/syz-aflow [no test files] ? github.com/google/syzkaller/tools/syz-benchcmp [no test files] ? github.com/google/syzkaller/tools/syz-bisect [no test files] ? github.com/google/syzkaller/tools/syz-build [no test files] ? github.com/google/syzkaller/tools/syz-check [no test files] ? github.com/google/syzkaller/tools/syz-codesearch [no test files] ? github.com/google/syzkaller/tools/syz-cover [no test files] ? github.com/google/syzkaller/tools/syz-covermerger [no test files] ? github.com/google/syzkaller/tools/syz-crush [no test files] ok github.com/google/syzkaller/tools/syz-db 1.934s ? github.com/google/syzkaller/tools/syz-db-export [no test files] ok github.com/google/syzkaller/tools/syz-declextract 4.550s ? github.com/google/syzkaller/tools/syz-diff [no test files] ? github.com/google/syzkaller/tools/syz-execprog [no test files] ? github.com/google/syzkaller/tools/syz-expand [no test files] ? github.com/google/syzkaller/tools/syz-fillreports [no test files] ? github.com/google/syzkaller/tools/syz-fix-analyzer [no test files] ? github.com/google/syzkaller/tools/syz-fmt [no test files] ? github.com/google/syzkaller/tools/syz-gemini-seed [no test files] ? github.com/google/syzkaller/tools/syz-hubtool [no test files] ok github.com/google/syzkaller/tools/syz-imagegen 0.044s ? github.com/google/syzkaller/tools/syz-kcidb [no test files] ok github.com/google/syzkaller/tools/syz-kconf 1.607s ok github.com/google/syzkaller/tools/syz-linter (cached) ? github.com/google/syzkaller/tools/syz-lore [no test files] ? github.com/google/syzkaller/tools/syz-make [no test files] ? github.com/google/syzkaller/tools/syz-minconfig [no test files] ? github.com/google/syzkaller/tools/syz-mutate [no test files] ? github.com/google/syzkaller/tools/syz-prog2c [no test files] ? github.com/google/syzkaller/tools/syz-query-subsystems [no test files] ? github.com/google/syzkaller/tools/syz-reporter [no test files] ? github.com/google/syzkaller/tools/syz-repro [no test files] ? github.com/google/syzkaller/tools/syz-showprio [no test files] ? github.com/google/syzkaller/tools/syz-symbolize [no test files] ok github.com/google/syzkaller/tools/syz-testbed 1.881s ? github.com/google/syzkaller/tools/syz-testbuild [no test files] ? github.com/google/syzkaller/tools/syz-trace2syz [no test files] ok github.com/google/syzkaller/tools/syz-trace2syz/parser 0.032s ok github.com/google/syzkaller/tools/syz-trace2syz/proggen 2.256s ? github.com/google/syzkaller/tools/syz-tty [no test files] ? github.com/google/syzkaller/tools/syz-upgrade [no test files] ? github.com/google/syzkaller/tools/syz-usbgen [no test files] ok github.com/google/syzkaller/vm 14.367s ? github.com/google/syzkaller/vm/adb [no test files] ? github.com/google/syzkaller/vm/bhyve [no test files] ? github.com/google/syzkaller/vm/cuttlefish [no test files] ok github.com/google/syzkaller/vm/dispatcher (cached) ? github.com/google/syzkaller/vm/gce [no test files] ? github.com/google/syzkaller/vm/gvisor [no test files] ok github.com/google/syzkaller/vm/isolated 1.184s ok github.com/google/syzkaller/vm/proxyapp 4.763s ? github.com/google/syzkaller/vm/proxyapp/mocks [no test files] ? github.com/google/syzkaller/vm/proxyapp/proxyrpc [no test files] ? github.com/google/syzkaller/vm/qemu [no test files] ? github.com/google/syzkaller/vm/starnix [no test files] ? github.com/google/syzkaller/vm/virtualbox [no test files] ok github.com/google/syzkaller/vm/vmimpl 1.398s ? github.com/google/syzkaller/vm/vmm [no test files] ? github.com/google/syzkaller/vm/vmware [no test files] FAIL