syzkaller login: [ 43.009187] sshd (225) used greatest stack depth: 24160 bytes left Warning: Permanently added '[localhost]:44503' (ECDSA) to the list of known hosts. 2023/05/18 03:48:46 fuzzer started 2023/05/18 03:48:47 dialing manager at localhost:44319 2023/05/18 03:48:47 checking machine... 2023/05/18 03:48:47 checking revisions... [ 44.189962] kmemleak: Automatic memory scanning thread ended 2023/05/18 03:48:47 testing simple program... [ 44.260964] cgroup: Unknown subsys name 'net' [ 44.329794] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 56.535587] audit: type=1400 audit(1684381739.805:6): avc: denied { execmem } for pid=259 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 57.634003] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 57.635755] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 57.637835] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 57.642582] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 57.645315] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 57.646642] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 58.065946] ------------[ cut here ]------------ [ 58.066714] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 58.068675] WARNING: CPU: 1 PID: 260 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 58.070031] Modules linked in: [ 58.070564] CPU: 1 PID: 260 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 58.075638] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 58.076839] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 58.077662] Code: 89 d8 4c 8b 43 08 48 c1 e8 03 42 80 3c 20 00 0f 85 af 00 00 00 48 8b 13 4c 89 e9 4c 89 fe 48 c7 c7 60 40 e2 84 e8 fa ff d4 fc <0f> 0b 48 89 e8 48 c1 e8 03 42 0f b6 14 20 48 89 e8 83 e0 07 83 c0 [ 58.079974] RSP: 0018:ffff888016637c00 EFLAGS: 00010282 [ 58.080683] RAX: 0000000000000000 RBX: ffff88801654e840 RCX: 0000000000000000 [ 58.081618] RDX: ffff888016ab9b40 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 58.082489] RBP: ffff88801654e854 R08: 0000000000000001 R09: 0000000000000000 [ 58.083306] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 58.084160] R13: ffffffff84e23fe0 R14: ffff88801654e848 R15: ffffffff84d74dc0 [ 58.085013] FS: 000055555668d400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 58.085961] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.086667] CR2: 00007fc29bdf7310 CR3: 00000000094a4000 CR4: 0000000000350ee0 [ 58.087545] Call Trace: [ 58.087856] [ 58.088138] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 58.088752] ipv4_frags_init_net+0x269/0x440 [ 58.089293] ops_init+0xbb/0x6b0 [ 58.089790] setup_net+0x3d9/0x990 [ 58.090259] ? down_read_killable+0x1d7/0x4e0 [ 58.090874] ? __pfx_setup_net+0x10/0x10 [ 58.091401] ? copy_net_ns+0x17c/0x770 [ 58.091960] copy_net_ns+0x321/0x770 [ 58.092497] create_new_namespaces+0x3f6/0xb30 [ 58.093108] unshare_nsproxy_namespaces+0xc1/0x200 [ 58.093787] ksys_unshare+0x44d/0x8e0 [ 58.094294] ? __pfx_ksys_unshare+0x10/0x10 [ 58.094879] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 58.095686] __x64_sys_unshare+0x31/0x40 [ 58.096205] do_syscall_64+0x3f/0x90 [ 58.096748] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 58.097404] RIP: 0033:0x7ff05e8190d7 [ 58.097925] Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 58.100209] RSP: 002b:00007ffd13f86298 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 58.101180] RAX: ffffffffffffffda RBX: 00007ffd13f868d8 RCX: 00007ff05e8190d7 [ 58.102088] RDX: 00007ff05e88341f RSI: 00007ffd13f86230 RDI: 0000000040000000 [ 58.103008] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd13f86040 [ 58.103940] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ff05e92bbf0 [ 58.104861] R13: 00007ffd13f86370 R14: 0000000000000000 R15: 00000000000000f8 [ 58.105769] [ 58.106082] irq event stamp: 7883 [ 58.106546] hardirqs last enabled at (7895): [] __up_console_sem+0x78/0x80 [ 58.107650] hardirqs last disabled at (7906): [] __up_console_sem+0x5d/0x80 [ 58.108721] softirqs last enabled at (7454): [] irq_exit_rcu+0x93/0xc0 [ 58.109767] softirqs last disabled at (7437): [] irq_exit_rcu+0x93/0xc0 [ 58.110830] ---[ end trace 0000000000000000 ]--- [ 58.116018] ------------[ cut here ]------------ [ 58.116652] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 58.118297] WARNING: CPU: 1 PID: 260 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 58.119410] Modules linked in: [ 58.119855] CPU: 1 PID: 260 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 58.121061] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 58.122121] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 58.122815] Code: 89 d8 4c 8b 43 08 48 c1 e8 03 42 80 3c 20 00 0f 85 af 00 00 00 48 8b 13 4c 89 e9 4c 89 fe 48 c7 c7 60 40 e2 84 e8 fa ff d4 fc <0f> 0b 48 89 e8 48 c1 e8 03 42 0f b6 14 20 48 89 e8 83 e0 07 83 c0 [ 58.125063] RSP: 0018:ffff888016637c00 EFLAGS: 00010282 [ 58.125759] RAX: 0000000000000000 RBX: ffff88800c49e240 RCX: 0000000000000000 [ 58.126659] RDX: ffff888016ab9b40 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 58.127604] RBP: ffff88800c49e254 R08: 0000000000000001 R09: 0000000000000000 [ 58.128563] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 58.129519] R13: ffffffff84e23fe0 R14: ffff88800c49e248 R15: ffffffff84da7d60 [ 58.130397] FS: 000055555668d400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 58.131440] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.132218] CR2: 00007fc29bdf7310 CR3: 00000000094a4000 CR4: 0000000000350ee0 [ 58.133154] Call Trace: [ 58.133520] [ 58.133844] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 58.134531] ipv6_frags_init_net+0x206/0x3c0 [ 58.135139] ops_init+0xbb/0x6b0 [ 58.135654] setup_net+0x3d9/0x990 [ 58.136137] ? down_read_killable+0x1d7/0x4e0 [ 58.136773] ? __pfx_setup_net+0x10/0x10 [ 58.137321] ? copy_net_ns+0x17c/0x770 [ 58.137893] copy_net_ns+0x321/0x770 [ 58.138416] create_new_namespaces+0x3f6/0xb30 [ 58.139066] unshare_nsproxy_namespaces+0xc1/0x200 [ 58.139766] ksys_unshare+0x44d/0x8e0 [ 58.140289] ? __pfx_ksys_unshare+0x10/0x10 [ 58.140903] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 58.141688] __x64_sys_unshare+0x31/0x40 [ 58.142223] do_syscall_64+0x3f/0x90 [ 58.142743] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 58.143412] RIP: 0033:0x7ff05e8190d7 [ 58.143928] Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 58.146137] RSP: 002b:00007ffd13f86298 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 58.147099] RAX: ffffffffffffffda RBX: 00007ffd13f868d8 RCX: 00007ff05e8190d7 [ 58.148025] RDX: 00007ff05e88341f RSI: 00007ffd13f86230 RDI: 0000000040000000 [ 58.148944] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd13f86040 [ 58.149848] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ff05e92bbf0 [ 58.150797] R13: 00007ffd13f86370 R14: 0000000000000000 R15: 00000000000000f8 [ 58.151776] [ 58.152088] irq event stamp: 9613 [ 58.152579] hardirqs last enabled at (9625): [] __up_console_sem+0x78/0x80 [ 58.153736] hardirqs last disabled at (9636): [] __up_console_sem+0x5d/0x80 [ 58.154881] softirqs last enabled at (8486): [] netlink_insert+0x187/0x1820 [ 58.155971] softirqs last disabled at (8484): [] release_sock+0x1f/0x1b0 [ 58.157004] ---[ end trace 0000000000000000 ]--- [ 58.158326] ------------[ cut here ]------------ [ 58.158956] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 58.160865] WARNING: CPU: 1 PID: 260 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 58.161958] Modules linked in: [ 58.162383] CPU: 1 PID: 260 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 58.163576] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 58.164618] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 58.165267] Code: 89 d8 4c 8b 43 08 48 c1 e8 03 42 80 3c 20 00 0f 85 af 00 00 00 48 8b 13 4c 89 e9 4c 89 fe 48 c7 c7 60 40 e2 84 e8 fa ff d4 fc <0f> 0b 48 89 e8 48 c1 e8 03 42 0f b6 14 20 48 89 e8 83 e0 07 83 c0 [ 58.167484] RSP: 0018:ffff888016637bf0 EFLAGS: 00010286 [ 58.168145] RAX: 0000000000000000 RBX: ffff88800df68240 RCX: 0000000000000000 [ 58.169053] RDX: ffff888016ab9b40 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 58.169971] RBP: ffff88800df68254 R08: 0000000000000001 R09: 0000000000000000 [ 58.170898] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 58.171830] R13: ffffffff84e23fe0 R14: ffff88800df68248 R15: ffffffff84db0aa0 [ 58.172696] FS: 000055555668d400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 58.173726] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.174474] CR2: 00007fc29bdf7310 CR3: 00000000094a4000 CR4: 0000000000350ee0 [ 58.175353] Call Trace: [ 58.175727] [ 58.176031] nf_ct_net_init+0x224/0x3d0 [ 58.176585] ? __pfx_nf_ct_net_init+0x10/0x10 [ 58.177174] ops_init+0xbb/0x6b0 [ 58.177654] setup_net+0x3d9/0x990 [ 58.178121] ? down_read_killable+0x1d7/0x4e0 [ 58.178738] ? __pfx_setup_net+0x10/0x10 [ 58.179251] ? copy_net_ns+0x17c/0x770 [ 58.179826] copy_net_ns+0x321/0x770 [ 58.180312] create_new_namespaces+0x3f6/0xb30 [ 58.180954] unshare_nsproxy_namespaces+0xc1/0x200 [ 58.181602] ksys_unshare+0x44d/0x8e0 [ 58.182109] ? __pfx_ksys_unshare+0x10/0x10 [ 58.182689] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 58.183437] __x64_sys_unshare+0x31/0x40 [ 58.184006] do_syscall_64+0x3f/0x90 [ 58.184521] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 58.185177] RIP: 0033:0x7ff05e8190d7 [ 58.185679] Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 58.187914] RSP: 002b:00007ffd13f86298 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 58.188884] RAX: ffffffffffffffda RBX: 00007ffd13f868d8 RCX: 00007ff05e8190d7 [ 58.189774] RDX: 00007ff05e88341f RSI: 00007ffd13f86230 RDI: 0000000040000000 [ 58.190671] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd13f86040 [ 58.191565] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ff05e92bbf0 [ 58.192434] R13: 00007ffd13f86370 R14: 0000000000000000 R15: 00000000000000f8 [ 58.193368] [ 58.193705] irq event stamp: 10377 [ 58.194139] hardirqs last enabled at (10387): [] __up_console_sem+0x78/0x80 [ 58.195224] hardirqs last disabled at (10398): [] __up_console_sem+0x5d/0x80 [ 58.196319] softirqs last enabled at (10182): [] irq_exit_rcu+0x93/0xc0 [ 58.197365] softirqs last disabled at (10177): [] irq_exit_rcu+0x93/0xc0 [ 58.198401] ---[ end trace 0000000000000000 ]--- executing program [ 59.717163] Bluetooth: hci0: command 0x0409 tx timeout [ 61.764515] Bluetooth: hci0: command 0x041b tx timeout executing program [ 63.812532] Bluetooth: hci0: command 0x040f tx timeout executing program [ 65.860546] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 03:48:54 Registers: info registers vcpu 0 RAX=dffffc0000000000 RBX=ffff888019567668 RCX=0000000000000001 RDX=1ffff110032aceeb RSI=ffffffff844cb0ff RDI=ffff888019567674 RBP=ffff888019567758 RSP=ffff888019567580 R8 =ffffffff86138fb2 R9 =ffffffff86138fb6 R10=0000000000038001 R11=ffff8880195675e0 R12=ffff888019567668 R13=0000000000000000 R14=ffff88800f519b40 R15=0000000000092c40 RIP=ffffffff813aace7 RFL=00000246 [---Z-P-] CPL=0 II=0 A20=1 SMM=0 HLT=0 ES =0000 0000000000000000 00000000 00000000 CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA] SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 00000000 00000000 FS =0000 00007ff603b46700 00000000 00000000 GS =0000 ffff88806ce00000 00000000 00000000 LDT=0000 fffffe0000000000 00000000 00000000 TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000001000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007f6c63ef9ae0 CR3=000000000dc66000 CR4=00350ef0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000ffff0ff0 DR7=0000000000000400 EFER=0000000000000d01 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80 FPR0=0000000000000000 0000 FPR1=0000000000000000 0000 FPR2=0000000000000000 0000 FPR3=0000000000000000 0000 FPR4=0000000000000000 0000 FPR5=0000000000000000 0000 FPR6=0000000000000000 0000 FPR7=0000000000000000 0000 XMM00=2031303a39343a33302038312079614d XMM01=5d3436353037302e38352020205b203a XMM02=75636578652d7a7973203a6d6d6f4320 XMM03=20202020202020572020202020202020 XMM04=6e2d3263722d302e342e362020202020 XMM05=3a6465746e69615420302e726f747563 XMM06=32203a4449502031203a555043205d34 XMM07=6e72656b2072656c6c616b7a79732031 XMM08=7475636578652d7a7973223d6d6d6f63 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000000000020 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507f85 RDI=ffffffff87f2dc00 RBP=ffffffff87f2dbc0 RSP=ffff8880166375f0 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000020 R11=0000000000000001 R12=0000000000000020 R13=ffffffff87f2dbc0 R14=0000000000000010 R15=ffffffff82507f70 RIP=ffffffff82507fdd RFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0 ES =0000 0000000000000000 00000000 00000000 CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA] SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 00000000 00000000 FS =0000 000055555668d400 00000000 00000000 GS =0000 ffff88806cf00000 00000000 00000000 LDT=0000 fffffe0000000000 00000000 00000000 TR =0040 fffffe000004a000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000048000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007fc29bdf7310 CR3=00000000094a4000 CR4=00350ee0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000ffff0ff0 DR7=0000000000000400 EFER=0000000000000d01 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80 FPR0=0000000000000000 0000 FPR1=0000000000000000 0000 FPR2=0000000000000000 0000 FPR3=0000000000000000 0000 FPR4=0000000000000000 0000 FPR5=0000000000000000 0000 FPR6=0000000000000000 0000 FPR7=0000000000000000 0000 XMM00=00000000000000000000000000000000 XMM01=00000000000000000000000000000000 XMM02=00000000000000000000000000000000 XMM03=00000000000000000000000000000000 XMM04=0000000000000000000000000000ff00 XMM05=00000000000000000000000000000000 XMM06=00000000000000000000000000000000 XMM07=00000000000000000000000000000000 XMM08=00000000000000000000000000000000 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000