syzkaller login: [ 41.126749] sshd (226) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:4910' (ECDSA) to the list of known hosts. 2023/05/17 14:47:39 fuzzer started 2023/05/17 14:47:40 dialing manager at localhost:44319 2023/05/17 14:47:40 checking machine... 2023/05/17 14:47:40 checking revisions... [ 42.038120] kmemleak: Automatic memory scanning thread ended 2023/05/17 14:47:40 testing simple program... [ 42.091494] cgroup: Unknown subsys name 'net' [ 42.166518] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 54.980617] audit: type=1400 audit(1684334873.094:6): 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 [ 56.062100] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 56.065332] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 56.066555] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 56.071356] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 56.074037] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 56.075182] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 56.478400] ------------[ cut here ]------------ [ 56.479511] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 56.481770] WARNING: CPU: 1 PID: 260 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 56.482997] Modules linked in: [ 56.483438] CPU: 1 PID: 260 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 56.487769] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 56.488930] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 56.489621] 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 [ 56.491982] RSP: 0018:ffff8880145afc00 EFLAGS: 00010282 [ 56.492672] RAX: 0000000000000000 RBX: ffff88800e22d040 RCX: 0000000000000000 [ 56.493641] RDX: ffff8880187f8000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 56.494624] RBP: ffff88800e22d054 R08: 0000000000000001 R09: 0000000000000000 [ 56.495601] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 56.496582] R13: ffffffff84e23fe0 R14: ffff88800e22d048 R15: ffffffff84d74dc0 [ 56.497584] FS: 0000555555880400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 56.498653] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.499443] CR2: 00007f5d16fc06f4 CR3: 000000000e06e000 CR4: 0000000000350ee0 [ 56.500374] Call Trace: [ 56.500725] [ 56.501124] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 56.501779] ipv4_frags_init_net+0x269/0x440 [ 56.502422] ops_init+0xbb/0x6b0 [ 56.502946] setup_net+0x3d9/0x990 [ 56.503461] ? down_read_killable+0x1d7/0x4e0 [ 56.504120] ? __pfx_setup_net+0x10/0x10 [ 56.504679] ? copy_net_ns+0x17c/0x770 [ 56.505263] copy_net_ns+0x321/0x770 [ 56.505781] create_new_namespaces+0x3f6/0xb30 [ 56.506427] unshare_nsproxy_namespaces+0xc1/0x200 [ 56.507102] ksys_unshare+0x44d/0x8e0 [ 56.507616] ? __pfx_ksys_unshare+0x10/0x10 [ 56.508223] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 56.509026] __x64_sys_unshare+0x31/0x40 [ 56.509572] do_syscall_64+0x3f/0x90 [ 56.510118] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 56.510810] RIP: 0033:0x7f790ffd20d7 [ 56.511355] 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 [ 56.513718] RSP: 002b:00007ffe98ca3d18 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 56.514735] RAX: ffffffffffffffda RBX: 00007ffe98ca4358 RCX: 00007f790ffd20d7 [ 56.515695] RDX: 00007f791003c41f RSI: 00007ffe98ca3cb0 RDI: 0000000040000000 [ 56.516645] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffe98ca3ac0 [ 56.517612] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f79100e4bf0 [ 56.518552] R13: 00007ffe98ca3df0 R14: 0000000000000000 R15: 00000000000000f8 [ 56.519530] [ 56.519875] irq event stamp: 8835 [ 56.520332] hardirqs last enabled at (8845): [] __up_console_sem+0x78/0x80 [ 56.521468] hardirqs last disabled at (8856): [] __up_console_sem+0x5d/0x80 [ 56.522604] softirqs last enabled at (8314): [] irq_exit_rcu+0x93/0xc0 [ 56.523704] softirqs last disabled at (8183): [] irq_exit_rcu+0x93/0xc0 [ 56.524810] ---[ end trace 0000000000000000 ]--- [ 56.530395] ------------[ cut here ]------------ [ 56.531056] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 56.532962] WARNING: CPU: 1 PID: 260 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 56.534108] Modules linked in: [ 56.534546] CPU: 1 PID: 260 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 56.535791] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 56.536883] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 56.537573] 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 [ 56.539987] RSP: 0018:ffff8880145afc00 EFLAGS: 00010282 [ 56.540684] RAX: 0000000000000000 RBX: ffff88800ed45840 RCX: 0000000000000000 [ 56.541692] RDX: ffff8880187f8000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 56.542674] RBP: ffff88800ed45854 R08: 0000000000000001 R09: 0000000000000000 [ 56.543655] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 56.544634] R13: ffffffff84e23fe0 R14: ffff88800ed45848 R15: ffffffff84da7d60 [ 56.545636] FS: 0000555555880400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 56.546739] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.547552] CR2: 00007f5d16fc06f4 CR3: 000000000e06e000 CR4: 0000000000350ee0 [ 56.548546] Call Trace: [ 56.548948] [ 56.549280] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 56.550004] ipv6_frags_init_net+0x206/0x3c0 [ 56.550621] ops_init+0xbb/0x6b0 [ 56.551150] setup_net+0x3d9/0x990 [ 56.551652] ? down_read_killable+0x1d7/0x4e0 [ 56.552313] ? __pfx_setup_net+0x10/0x10 [ 56.552911] ? copy_net_ns+0x17c/0x770 [ 56.553462] copy_net_ns+0x321/0x770 [ 56.554039] create_new_namespaces+0x3f6/0xb30 [ 56.554680] unshare_nsproxy_namespaces+0xc1/0x200 [ 56.555418] ksys_unshare+0x44d/0x8e0 [ 56.555997] ? __pfx_ksys_unshare+0x10/0x10 [ 56.556584] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 56.557422] __x64_sys_unshare+0x31/0x40 [ 56.558021] do_syscall_64+0x3f/0x90 [ 56.558550] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 56.559292] RIP: 0033:0x7f790ffd20d7 [ 56.559809] 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 [ 56.562244] RSP: 002b:00007ffe98ca3d18 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 56.563304] RAX: ffffffffffffffda RBX: 00007ffe98ca4358 RCX: 00007f790ffd20d7 [ 56.564274] RDX: 00007f791003c41f RSI: 00007ffe98ca3cb0 RDI: 0000000040000000 [ 56.565251] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffe98ca3ac0 [ 56.566216] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f79100e4bf0 [ 56.567197] R13: 00007ffe98ca3df0 R14: 0000000000000000 R15: 00000000000000f8 [ 56.568196] [ 56.568526] irq event stamp: 10831 [ 56.569057] hardirqs last enabled at (10843): [] __up_console_sem+0x78/0x80 [ 56.570252] hardirqs last disabled at (10854): [] __up_console_sem+0x5d/0x80 [ 56.571429] softirqs last enabled at (10646): [] irq_exit_rcu+0x93/0xc0 [ 56.572577] softirqs last disabled at (10637): [] irq_exit_rcu+0x93/0xc0 [ 56.573722] ---[ end trace 0000000000000000 ]--- [ 56.575288] ------------[ cut here ]------------ [ 56.575991] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 56.578266] WARNING: CPU: 1 PID: 260 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 56.579429] Modules linked in: [ 56.579905] CPU: 1 PID: 260 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 56.581159] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 56.582239] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 56.582959] 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 [ 56.585281] RSP: 0018:ffff8880145afbf0 EFLAGS: 00010286 [ 56.585997] RAX: 0000000000000000 RBX: ffff88800ed45040 RCX: 0000000000000000 [ 56.586928] RDX: ffff8880187f8000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 56.587865] RBP: ffff88800ed45054 R08: 0000000000000001 R09: 0000000000000000 [ 56.588778] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 56.589719] R13: ffffffff84e23fe0 R14: ffff88800ed45048 R15: ffffffff84db0aa0 [ 56.590677] FS: 0000555555880400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 56.591773] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.592578] CR2: 00007f5d16fc06f4 CR3: 000000000e06e000 CR4: 0000000000350ee0 [ 56.593575] Call Trace: [ 56.593965] [ 56.594297] nf_ct_net_init+0x224/0x3d0 [ 56.594910] ? __pfx_nf_ct_net_init+0x10/0x10 [ 56.595541] ops_init+0xbb/0x6b0 [ 56.596089] setup_net+0x3d9/0x990 [ 56.596592] ? down_read_killable+0x1d7/0x4e0 [ 56.597261] ? __pfx_setup_net+0x10/0x10 [ 56.597826] ? copy_net_ns+0x17c/0x770 [ 56.598417] copy_net_ns+0x321/0x770 [ 56.598978] create_new_namespaces+0x3f6/0xb30 [ 56.599625] unshare_nsproxy_namespaces+0xc1/0x200 [ 56.600332] ksys_unshare+0x44d/0x8e0 [ 56.600914] ? __pfx_ksys_unshare+0x10/0x10 [ 56.601502] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 56.602289] __x64_sys_unshare+0x31/0x40 [ 56.602865] do_syscall_64+0x3f/0x90 [ 56.603376] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 56.604091] RIP: 0033:0x7f790ffd20d7 [ 56.604603] 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 [ 56.607013] RSP: 002b:00007ffe98ca3d18 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 56.608086] RAX: ffffffffffffffda RBX: 00007ffe98ca4358 RCX: 00007f790ffd20d7 [ 56.609082] RDX: 00007f791003c41f RSI: 00007ffe98ca3cb0 RDI: 0000000040000000 [ 56.610051] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffe98ca3ac0 [ 56.611016] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f79100e4bf0 [ 56.611982] R13: 00007ffe98ca3df0 R14: 0000000000000000 R15: 00000000000000f8 [ 56.612996] [ 56.613327] irq event stamp: 11653 [ 56.613799] hardirqs last enabled at (11663): [] __up_console_sem+0x78/0x80 [ 56.615011] hardirqs last disabled at (11676): [] __up_console_sem+0x5d/0x80 [ 56.616192] softirqs last enabled at (11370): [] irq_exit_rcu+0x93/0xc0 [ 56.617382] softirqs last disabled at (11365): [] irq_exit_rcu+0x93/0xc0 [ 56.618524] ---[ end trace 0000000000000000 ]--- executing program [ 58.083484] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 60.131477] Bluetooth: hci0: command 0x041b tx timeout [ 62.179938] Bluetooth: hci0: command 0x040f tx timeout executing program [ 64.226929] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 14:47:47 Registers: info registers vcpu 0 RAX=000000000002a6eb RBX=0000000000000000 RCX=ffffffff844d0a0e RDX=0000000000000000 RSI=0000000000000000 RDI=ffffffff81287415 RBP=dffffc0000000000 RSP=ffffffff85407e10 R8 =0000000000000001 R9 =ffffed100d9c69f8 R10=ffff88806ce34fc3 R11=0000000000000001 R12=ffffffff85d35a10 R13=1ffffffff0a80fc7 R14=0000000000000000 R15=0000000000000000 RIP=ffffffff844d199f 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 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=00007f716e0867f0 CR3=0000000016af0000 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=2034353a37343a34312037312079614d XMM01=5d3037373138342e36352020205b203a XMM02=74656e20746120303632203a44495020 XMM03=735f74656e5f72657473696765722035 XMM04=7379735f74656e5f7265747369676572 XMM05=732f74656e20746120303632203a4449 XMM06=57205d3037373138342e36352020205b XMM07=79732034353a37343a34312037312079 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=ffff8880145af5f0 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 0000555555880400 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=00007f5d16fc06f4 CR3=000000000e06e000 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