syzkaller login: [ 40.290158] sshd (211) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:9380' (ECDSA) to the list of known hosts. 2023/05/17 10:40:01 fuzzer started 2023/05/17 10:40:01 dialing manager at localhost:35573 2023/05/17 10:40:01 checking machine... 2023/05/17 10:40:01 checking revisions... [ 45.216853] kmemleak: Automatic memory scanning thread ended 2023/05/17 10:40:01 testing simple program... [ 45.293331] cgroup: Unknown subsys name 'net' [ 45.376201] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 58.338110] audit: type=1400 audit(1684320014.778:6): 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 [ 59.458410] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 59.462959] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 59.464771] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 59.467863] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 59.469929] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 59.471596] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 59.815410] ------------[ cut here ]------------ [ 59.816306] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 59.819094] WARNING: CPU: 0 PID: 260 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 59.820483] Modules linked in: [ 59.820964] CPU: 0 PID: 260 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 59.825442] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 59.826636] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 59.827439] 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 [ 59.829996] RSP: 0018:ffff88800f677c00 EFLAGS: 00010282 [ 59.830801] RAX: 0000000000000000 RBX: ffff88800c5d1c40 RCX: 0000000000000000 [ 59.831857] RDX: ffff88801774d1c0 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 59.832895] RBP: ffff88800c5d1c54 R08: 0000000000000001 R09: 0000000000000000 [ 59.833929] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 59.834964] R13: ffffffff84e223a0 R14: ffff88800c5d1c48 R15: ffffffff84d73340 [ 59.836012] FS: 0000555557172400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 59.837176] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.838046] CR2: 00007f2f396676f4 CR3: 0000000016a16000 CR4: 0000000000350ef0 [ 59.839116] Call Trace: [ 59.839537] [ 59.839889] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 59.840650] ipv4_frags_init_net+0x269/0x440 [ 59.841299] ops_init+0xbb/0x6b0 [ 59.841868] setup_net+0x3d9/0x990 [ 59.842434] ? down_read_killable+0x1d7/0x4e0 [ 59.843109] ? __pfx_setup_net+0x10/0x10 [ 59.843733] ? copy_net_ns+0x17c/0x770 [ 59.844321] copy_net_ns+0x321/0x770 [ 59.844912] create_new_namespaces+0x3f6/0xb30 [ 59.845637] unshare_nsproxy_namespaces+0xc1/0x200 [ 59.846397] ksys_unshare+0x44d/0x8e0 [ 59.846993] ? __pfx_ksys_unshare+0x10/0x10 [ 59.847668] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 59.848536] __x64_sys_unshare+0x31/0x40 [ 59.849140] do_syscall_64+0x3f/0x90 [ 59.849746] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 59.850590] RIP: 0033:0x7f22e52b90d7 [ 59.851147] 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 [ 59.853672] RSP: 002b:00007fffc8b137d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 59.854786] RAX: ffffffffffffffda RBX: 00007fffc8b13e18 RCX: 00007f22e52b90d7 [ 59.855848] RDX: 00007f22e532341f RSI: 00007fffc8b13770 RDI: 0000000040000000 [ 59.856881] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fffc8b13580 [ 59.857913] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f22e53cbbf0 [ 59.858939] R13: 00007fffc8b138b0 R14: 0000000000000000 R15: 00000000000000f8 [ 59.860015] [ 59.860392] irq event stamp: 8073 [ 59.860881] hardirqs last enabled at (8083): [] __up_console_sem+0x78/0x80 [ 59.862119] hardirqs last disabled at (8094): [] __up_console_sem+0x5d/0x80 [ 59.863395] softirqs last enabled at (7944): [] irq_exit_rcu+0x93/0xc0 [ 59.864603] softirqs last disabled at (7935): [] irq_exit_rcu+0x93/0xc0 [ 59.865804] ---[ end trace 0000000000000000 ]--- [ 59.871758] ------------[ cut here ]------------ [ 59.872545] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 59.874527] WARNING: CPU: 0 PID: 260 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 59.875769] Modules linked in: [ 59.876246] CPU: 0 PID: 260 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 59.877572] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 59.878734] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 59.879524] 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 [ 59.882087] RSP: 0018:ffff88800f677c00 EFLAGS: 00010282 [ 59.882928] RAX: 0000000000000000 RBX: ffff88800d603840 RCX: 0000000000000000 [ 59.884002] RDX: ffff88801774d1c0 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 59.885072] RBP: ffff88800d603854 R08: 0000000000000001 R09: 0000000000000000 [ 59.886151] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 59.887238] R13: ffffffff84e223a0 R14: ffff88800d603848 R15: ffffffff84da62e0 [ 59.888314] FS: 0000555557172400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 59.889532] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.890408] CR2: 00007f2f396676f4 CR3: 0000000016a16000 CR4: 0000000000350ef0 [ 59.891484] Call Trace: [ 59.891872] [ 59.892230] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 59.892999] ipv6_frags_init_net+0x206/0x3c0 [ 59.893701] ops_init+0xbb/0x6b0 [ 59.894227] setup_net+0x3d9/0x990 [ 59.894808] ? down_read_killable+0x1d7/0x4e0 [ 59.895549] ? __pfx_setup_net+0x10/0x10 [ 59.896156] ? copy_net_ns+0x17c/0x770 [ 59.896798] copy_net_ns+0x321/0x770 [ 59.897404] create_new_namespaces+0x3f6/0xb30 [ 59.898108] unshare_nsproxy_namespaces+0xc1/0x200 [ 59.898871] ksys_unshare+0x44d/0x8e0 [ 59.899506] ? __pfx_ksys_unshare+0x10/0x10 [ 59.900164] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 59.901066] __x64_sys_unshare+0x31/0x40 [ 59.901739] do_syscall_64+0x3f/0x90 [ 59.902310] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 59.903133] RIP: 0033:0x7f22e52b90d7 [ 59.903731] 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 [ 59.906362] RSP: 002b:00007fffc8b137d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 59.907509] RAX: ffffffffffffffda RBX: 00007fffc8b13e18 RCX: 00007f22e52b90d7 [ 59.908575] RDX: 00007f22e532341f RSI: 00007fffc8b13770 RDI: 0000000040000000 [ 59.909637] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fffc8b13580 [ 59.910682] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f22e53cbbf0 [ 59.911745] R13: 00007fffc8b138b0 R14: 0000000000000000 R15: 00000000000000f8 [ 59.912816] [ 59.913173] irq event stamp: 9809 [ 59.913708] hardirqs last enabled at (9821): [] __up_console_sem+0x78/0x80 [ 59.914985] hardirqs last disabled at (9832): [] __up_console_sem+0x5d/0x80 [ 59.916251] softirqs last enabled at (9282): [] irq_exit_rcu+0x93/0xc0 [ 59.917476] softirqs last disabled at (9259): [] irq_exit_rcu+0x93/0xc0 [ 59.918687] ---[ end trace 0000000000000000 ]--- [ 59.920240] ------------[ cut here ]------------ [ 59.920972] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 59.923188] WARNING: CPU: 0 PID: 260 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 59.924454] Modules linked in: [ 59.924934] CPU: 0 PID: 260 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 59.926306] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 59.927531] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 59.928282] 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 [ 59.930832] RSP: 0018:ffff88800f677bf0 EFLAGS: 00010286 [ 59.931642] RAX: 0000000000000000 RBX: ffff88800d603240 RCX: 0000000000000000 [ 59.932714] RDX: ffff88801774d1c0 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 59.933740] RBP: ffff88800d603254 R08: 0000000000000001 R09: 0000000000000000 [ 59.934767] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 59.935830] R13: ffffffff84e223a0 R14: ffff88800d603248 R15: ffffffff84daf020 [ 59.936873] FS: 0000555557172400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 59.938037] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.938912] CR2: 00007f2f396676f4 CR3: 0000000016a16000 CR4: 0000000000350ef0 [ 59.939952] Call Trace: [ 59.940333] [ 59.940716] nf_ct_net_init+0x224/0x3d0 [ 59.941311] ? __pfx_nf_ct_net_init+0x10/0x10 [ 59.942010] ops_init+0xbb/0x6b0 [ 59.942566] setup_net+0x3d9/0x990 [ 59.943116] ? down_read_killable+0x1d7/0x4e0 [ 59.943821] ? __pfx_setup_net+0x10/0x10 [ 59.944453] ? copy_net_ns+0x17c/0x770 [ 59.945051] copy_net_ns+0x321/0x770 [ 59.945648] create_new_namespaces+0x3f6/0xb30 [ 59.946328] unshare_nsproxy_namespaces+0xc1/0x200 [ 59.947092] ksys_unshare+0x44d/0x8e0 [ 59.947702] ? __pfx_ksys_unshare+0x10/0x10 [ 59.948374] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 59.949202] __x64_sys_unshare+0x31/0x40 [ 59.949847] do_syscall_64+0x3f/0x90 [ 59.950438] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 59.951205] RIP: 0033:0x7f22e52b90d7 [ 59.951783] 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 [ 59.954325] RSP: 002b:00007fffc8b137d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 59.955487] RAX: ffffffffffffffda RBX: 00007fffc8b13e18 RCX: 00007f22e52b90d7 [ 59.956536] RDX: 00007f22e532341f RSI: 00007fffc8b13770 RDI: 0000000040000000 [ 59.957564] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fffc8b13580 [ 59.958588] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f22e53cbbf0 [ 59.959624] R13: 00007fffc8b138b0 R14: 0000000000000000 R15: 00000000000000f8 [ 59.960670] [ 59.961016] irq event stamp: 10609 [ 59.961551] hardirqs last enabled at (10621): [] __up_console_sem+0x78/0x80 [ 59.962779] hardirqs last disabled at (10632): [] __up_console_sem+0x5d/0x80 [ 59.964036] softirqs last enabled at (10514): [] irq_exit_rcu+0x93/0xc0 [ 59.965231] softirqs last disabled at (10505): [] irq_exit_rcu+0x93/0xc0 [ 59.966429] ---[ end trace 0000000000000000 ]--- executing program [ 61.538057] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 63.585413] Bluetooth: hci0: command 0x041b tx timeout [ 65.633452] Bluetooth: hci0: command 0x040f tx timeout executing program [ 67.681431] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 10:40:05 Registers: info registers vcpu 0 RAX=0000000000000020 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507685 RDI=ffffffff87f27c00 RBP=ffffffff87f27bc0 RSP=ffff88800f6775f0 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000020 R11=0000000000000001 R12=0000000000000020 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 0000555557172400 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=00007f2f396676f4 CR3=0000000016a16000 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=0000000000025d8d 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=00000206 [-----P-] 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=00007f37a4d0a4e0 CR3=000000000e5ee000 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=2036313a30343a30312037312079614d XMM01=5d3630333631382e39352020205b203a XMM02=657268745f776f6c5f6761726670692f XMM03=6c61626f6c67206c656e72656b206f74 XMM04=6f6c5f676172667069203a6174616420 XMM05=2073746e696f702061746164203a6873 XMM06=347670692f74656e206c746373797320 XMM07=6c656e72656b2072656c6c616b7a7973 XMM08=7475636578652d7a7973223d6d6d6f63 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000