syzkaller login: [ 40.728850] sshd (216) used greatest stack depth: 24160 bytes left Warning: Permanently added '[localhost]:38535' (ECDSA) to the list of known hosts. 2023/05/16 11:11:48 fuzzer started 2023/05/16 11:11:49 dialing manager at localhost:35573 2023/05/16 11:11:49 checking machine... 2023/05/16 11:11:49 checking revisions... [ 42.832349] kmemleak: Automatic memory scanning thread ended 2023/05/16 11:11:49 testing simple program... [ 42.904598] cgroup: Unknown subsys name 'net' [ 43.003429] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 55.535797] audit: type=1400 audit(1684235522.054:6): avc: denied { execmem } for pid=257 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 56.642866] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 56.644414] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 56.646594] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 56.650333] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 56.652653] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 56.654113] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 57.067605] ------------[ cut here ]------------ [ 57.068390] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 57.070519] WARNING: CPU: 0 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 57.071997] Modules linked in: [ 57.072744] CPU: 0 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 57.077697] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 57.078731] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 57.079367] 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 20 24 e2 84 e8 6a cd d5 fc <0f> 0b 48 89 e8 48 c1 e8 03 42 0f b6 14 20 48 89 e8 83 e0 07 83 c0 [ 57.081517] RSP: 0018:ffff8880167dfc00 EFLAGS: 00010282 [ 57.082169] RAX: 0000000000000000 RBX: ffff88800db9fc40 RCX: 0000000000000000 [ 57.083087] RDX: ffff888017d98000 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 57.083959] RBP: ffff88800db9fc54 R08: 0000000000000001 R09: 0000000000000000 [ 57.084840] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 57.085715] R13: ffffffff84e223a0 R14: ffff88800db9fc48 R15: ffffffff84d73340 [ 57.086610] FS: 0000555556b05400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 57.087606] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.088309] CR2: 00007f83c7cd16f4 CR3: 00000000164b4000 CR4: 0000000000350ef0 [ 57.089205] Call Trace: [ 57.089558] [ 57.089853] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 57.090514] ipv4_frags_init_net+0x269/0x440 [ 57.091071] ops_init+0xbb/0x6b0 [ 57.091545] setup_net+0x3d9/0x990 [ 57.091994] ? down_read_killable+0x1d7/0x4e0 [ 57.092585] ? __pfx_setup_net+0x10/0x10 [ 57.093086] ? copy_net_ns+0x17c/0x770 [ 57.093619] copy_net_ns+0x321/0x770 [ 57.094094] create_new_namespaces+0x3f6/0xb30 [ 57.094724] unshare_nsproxy_namespaces+0xc1/0x200 [ 57.095332] ksys_unshare+0x44d/0x8e0 [ 57.095859] ? __pfx_ksys_unshare+0x10/0x10 [ 57.096400] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 57.097133] __x64_sys_unshare+0x31/0x40 [ 57.097673] do_syscall_64+0x3f/0x90 [ 57.098141] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 57.098823] RIP: 0033:0x7f0a25b5d0d7 [ 57.099285] 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 [ 57.101432] RSP: 002b:00007ffff6744568 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 57.102365] RAX: ffffffffffffffda RBX: 00007ffff6744ba8 RCX: 00007f0a25b5d0d7 [ 57.103265] RDX: 00007f0a25bc741f RSI: 00007ffff6744500 RDI: 0000000040000000 [ 57.104144] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffff6744310 [ 57.105015] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f0a25c6fbf0 [ 57.105886] R13: 00007ffff6744640 R14: 0000000000000000 R15: 00000000000000f8 [ 57.106798] [ 57.107098] irq event stamp: 8153 [ 57.107548] hardirqs last enabled at (8165): [] __up_console_sem+0x78/0x80 [ 57.108590] hardirqs last disabled at (8176): [] __up_console_sem+0x5d/0x80 [ 57.109652] softirqs last enabled at (7694): [] irq_exit_rcu+0x93/0xc0 [ 57.110700] softirqs last disabled at (7639): [] irq_exit_rcu+0x93/0xc0 [ 57.111735] ---[ end trace 0000000000000000 ]--- [ 57.116963] ------------[ cut here ]------------ [ 57.117568] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 57.119223] WARNING: CPU: 0 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 57.120303] Modules linked in: [ 57.120746] CPU: 0 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 57.121893] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 57.122943] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 57.123612] 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 20 24 e2 84 e8 6a cd d5 fc <0f> 0b 48 89 e8 48 c1 e8 03 42 0f b6 14 20 48 89 e8 83 e0 07 83 c0 [ 57.125769] RSP: 0018:ffff8880167dfc00 EFLAGS: 00010282 [ 57.126418] RAX: 0000000000000000 RBX: ffff88800c696a40 RCX: 0000000000000000 [ 57.127306] RDX: ffff888017d98000 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 57.128204] RBP: ffff88800c696a54 R08: 0000000000000001 R09: 0000000000000000 [ 57.129132] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 57.130068] R13: ffffffff84e223a0 R14: ffff88800c696a48 R15: ffffffff84da62e0 [ 57.130994] FS: 0000555556b05400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 57.132043] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.132796] CR2: 00007f83c7cd16f4 CR3: 00000000164b4000 CR4: 0000000000350ef0 [ 57.133718] Call Trace: [ 57.134053] [ 57.134362] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 57.135041] ipv6_frags_init_net+0x206/0x3c0 [ 57.135651] ops_init+0xbb/0x6b0 [ 57.136102] setup_net+0x3d9/0x990 [ 57.136600] ? down_read_killable+0x1d7/0x4e0 [ 57.137193] ? __pfx_setup_net+0x10/0x10 [ 57.137742] ? copy_net_ns+0x17c/0x770 [ 57.138258] copy_net_ns+0x321/0x770 [ 57.138788] create_new_namespaces+0x3f6/0xb30 [ 57.139398] unshare_nsproxy_namespaces+0xc1/0x200 [ 57.140070] ksys_unshare+0x44d/0x8e0 [ 57.140611] ? __pfx_ksys_unshare+0x10/0x10 [ 57.141177] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 57.141947] __x64_sys_unshare+0x31/0x40 [ 57.142550] do_syscall_64+0x3f/0x90 [ 57.143036] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 57.143743] RIP: 0033:0x7f0a25b5d0d7 [ 57.144228] 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 [ 57.146519] RSP: 002b:00007ffff6744568 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 57.147516] RAX: ffffffffffffffda RBX: 00007ffff6744ba8 RCX: 00007f0a25b5d0d7 [ 57.148424] RDX: 00007f0a25bc741f RSI: 00007ffff6744500 RDI: 0000000040000000 [ 57.149347] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffff6744310 [ 57.150272] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f0a25c6fbf0 [ 57.151220] R13: 00007ffff6744640 R14: 0000000000000000 R15: 00000000000000f8 [ 57.152172] [ 57.152517] irq event stamp: 9775 [ 57.152972] hardirqs last enabled at (9785): [] __up_console_sem+0x78/0x80 [ 57.154078] hardirqs last disabled at (9796): [] __up_console_sem+0x5d/0x80 [ 57.155181] softirqs last enabled at (9324): [] irq_exit_rcu+0x93/0xc0 [ 57.156269] softirqs last disabled at (9319): [] irq_exit_rcu+0x93/0xc0 [ 57.157346] ---[ end trace 0000000000000000 ]--- [ 57.158755] ------------[ cut here ]------------ [ 57.159363] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 57.161333] WARNING: CPU: 0 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 57.162470] Modules linked in: [ 57.162905] CPU: 0 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 57.164097] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 57.165160] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 57.165862] 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 20 24 e2 84 e8 6a cd d5 fc <0f> 0b 48 89 e8 48 c1 e8 03 42 0f b6 14 20 48 89 e8 83 e0 07 83 c0 [ 57.168128] RSP: 0018:ffff8880167dfbf0 EFLAGS: 00010286 [ 57.168857] RAX: 0000000000000000 RBX: ffff88800c697040 RCX: 0000000000000000 [ 57.169786] RDX: ffff888017d98000 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 57.170783] RBP: ffff88800c697054 R08: 0000000000000001 R09: 0000000000000000 [ 57.171675] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 57.172585] R13: ffffffff84e223a0 R14: ffff88800c697048 R15: ffffffff84daf020 [ 57.173485] FS: 0000555556b05400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 57.174498] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.175222] CR2: 00007f83c7cd16f4 CR3: 00000000164b4000 CR4: 0000000000350ef0 [ 57.176130] Call Trace: [ 57.176496] [ 57.176809] nf_ct_net_init+0x224/0x3d0 [ 57.177332] ? __pfx_nf_ct_net_init+0x10/0x10 [ 57.177940] ops_init+0xbb/0x6b0 [ 57.178396] setup_net+0x3d9/0x990 [ 57.178897] ? down_read_killable+0x1d7/0x4e0 [ 57.179511] ? __pfx_setup_net+0x10/0x10 [ 57.180019] ? copy_net_ns+0x17c/0x770 [ 57.180569] copy_net_ns+0x321/0x770 [ 57.181060] create_new_namespaces+0x3f6/0xb30 [ 57.181681] unshare_nsproxy_namespaces+0xc1/0x200 [ 57.182300] ksys_unshare+0x44d/0x8e0 [ 57.182841] ? __pfx_ksys_unshare+0x10/0x10 [ 57.183394] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 57.184138] __x64_sys_unshare+0x31/0x40 [ 57.184684] do_syscall_64+0x3f/0x90 [ 57.185156] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 57.185835] RIP: 0033:0x7f0a25b5d0d7 [ 57.186304] 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 [ 57.188490] RSP: 002b:00007ffff6744568 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 57.189398] RAX: ffffffffffffffda RBX: 00007ffff6744ba8 RCX: 00007f0a25b5d0d7 [ 57.190285] RDX: 00007f0a25bc741f RSI: 00007ffff6744500 RDI: 0000000040000000 [ 57.191200] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffff6744310 [ 57.192093] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f0a25c6fbf0 [ 57.192982] R13: 00007ffff6744640 R14: 0000000000000000 R15: 00000000000000f8 [ 57.193885] [ 57.194185] irq event stamp: 10545 [ 57.194655] hardirqs last enabled at (10557): [] __up_console_sem+0x78/0x80 [ 57.195773] hardirqs last disabled at (10568): [] __up_console_sem+0x5d/0x80 [ 57.196889] softirqs last enabled at (10432): [] irq_exit_rcu+0x93/0xc0 [ 57.197984] softirqs last disabled at (10427): [] irq_exit_rcu+0x93/0xc0 [ 57.199090] ---[ end trace 0000000000000000 ]--- executing program [ 58.720223] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 60.767539] Bluetooth: hci0: command 0x041b tx timeout [ 62.815601] Bluetooth: hci0: command 0x040f tx timeout executing program [ 64.863504] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 11:12:01 Registers: info registers vcpu 0 RAX=0000000000000037 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507685 RDI=ffffffff87f27c00 RBP=ffffffff87f27bc0 RSP=ffff8880167df5f0 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000037 R11=0000000000000001 R12=0000000000000037 R13=ffffffff87f27bc0 R14=0000000000000010 R15=ffffffff82507670 RIP=ffffffff825076dd 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 0000555556b05400 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=00007f83c7cd16f4 CR3=00000000164b4000 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=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 info registers vcpu 1 RAX=0000000000036a29 RBX=0000000000000001 RCX=ffffffff844c4a0e RDX=0000000000000000 RSI=0000000000000000 RDI=ffffffff81288625 RBP=dffffc0000000000 RSP=ffff888008dcfe68 R8 =0000000000000001 R9 =ffffed100d9e69f8 R10=ffff88806cf34fc3 R11=0000000000000001 R12=ffffffff85d34a10 R13=1ffff110011b9fd2 R14=0000000000000000 R15=0000000000000000 RIP=ffffffff844c599f RFL=00000202 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=1 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 0000000000000000 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=00007f1b44039108 CR3=0000000009714000 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=2033303a32313a31312036312079614d XMM01=5d3739393137302e37352020205b203a XMM02=646f4d205d3739393137302e37352020 XMM03=6b7a79732033303a32313a3131203631 XMM04=7379735f74656e5f7265747369676572 XMM05=732f74656e20746120383532203a4449 XMM06=57205d3931353037302e37352020205b XMM07=79732033303a32313a31312036312079 XMM08=7475636578652d7a7973223d6d6d6f63 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000