syzkaller login: [ 43.304288] sshd (225) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:28326' (ECDSA) to the list of known hosts. 2023/05/17 14:18:38 fuzzer started 2023/05/17 14:18:39 dialing manager at localhost:44319 2023/05/17 14:18:39 checking machine... 2023/05/17 14:18:39 checking revisions... [ 44.529718] kmemleak: Automatic memory scanning thread ended 2023/05/17 14:18:39 testing simple program... [ 44.597347] cgroup: Unknown subsys name 'net' [ 44.675988] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 56.630361] audit: type=1400 audit(1684333131.451:6): avc: denied { execmem } for pid=258 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 57.741752] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 57.743647] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 57.750998] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 57.754406] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 57.760287] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 57.761510] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 58.151686] ------------[ cut here ]------------ [ 58.152505] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 58.154433] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 58.155777] Modules linked in: [ 58.156309] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 58.161085] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 58.162111] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 58.162764] 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 [ 58.164958] RSP: 0018:ffff88801ff57c00 EFLAGS: 00010282 [ 58.165609] RAX: 0000000000000000 RBX: ffff8880166a6c40 RCX: 0000000000000000 [ 58.166516] RDX: ffff888018541b40 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 58.167425] RBP: ffff8880166a6c54 R08: 0000000000000001 R09: 0000000000000000 [ 58.168314] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 58.169199] R13: ffffffff84e23fe0 R14: ffff8880166a6c48 R15: ffffffff84d74dc0 [ 58.170124] FS: 00005555565c0400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 58.171121] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.171871] CR2: 00007f76601726f4 CR3: 00000000147a8000 CR4: 0000000000350ef0 [ 58.172735] Call Trace: [ 58.173098] [ 58.173398] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 58.174052] ipv4_frags_init_net+0x269/0x440 [ 58.174622] ops_init+0xbb/0x6b0 [ 58.175110] setup_net+0x3d9/0x990 [ 58.175569] ? down_read_killable+0x1d7/0x4e0 [ 58.176170] ? __pfx_setup_net+0x10/0x10 [ 58.176689] ? copy_net_ns+0x17c/0x770 [ 58.177241] copy_net_ns+0x321/0x770 [ 58.177731] create_new_namespaces+0x3f6/0xb30 [ 58.178373] unshare_nsproxy_namespaces+0xc1/0x200 [ 58.179025] ksys_unshare+0x44d/0x8e0 [ 58.179531] ? __pfx_ksys_unshare+0x10/0x10 [ 58.180121] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 58.180859] __x64_sys_unshare+0x31/0x40 [ 58.181376] do_syscall_64+0x3f/0x90 [ 58.181917] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 58.182571] RIP: 0033:0x7fdccf12e0d7 [ 58.183075] 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 [ 58.185353] RSP: 002b:00007ffc4dc852a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 58.186536] RAX: ffffffffffffffda RBX: 00007ffc4dc858e8 RCX: 00007fdccf12e0d7 [ 58.187622] RDX: 00007fdccf19841f RSI: 00007ffc4dc85240 RDI: 0000000040000000 [ 58.188707] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffc4dc85050 [ 58.189849] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fdccf240bf0 [ 58.190937] R13: 00007ffc4dc85380 R14: 0000000000000000 R15: 00000000000000f8 [ 58.192066] [ 58.192442] irq event stamp: 8289 [ 58.192995] hardirqs last enabled at (8301): [] __up_console_sem+0x78/0x80 [ 58.194325] hardirqs last disabled at (8312): [] __up_console_sem+0x5d/0x80 [ 58.195626] softirqs last enabled at (7824): [] irq_exit_rcu+0x93/0xc0 [ 58.196910] softirqs last disabled at (7815): [] irq_exit_rcu+0x93/0xc0 [ 58.198201] ---[ end trace 0000000000000000 ]--- [ 58.204231] ------------[ cut here ]------------ [ 58.205047] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 58.207115] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 58.208404] Modules linked in: [ 58.208944] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 58.210382] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 58.211620] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 58.212440] 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 [ 58.215138] RSP: 0018:ffff88801ff57c00 EFLAGS: 00010282 [ 58.215966] RAX: 0000000000000000 RBX: ffff8880165d4640 RCX: 0000000000000000 [ 58.217049] RDX: ffff888018541b40 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 58.218131] RBP: ffff8880165d4654 R08: 0000000000000001 R09: 0000000000000000 [ 58.219219] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 58.220303] R13: ffffffff84e23fe0 R14: ffff8880165d4648 R15: ffffffff84da7d60 [ 58.221413] FS: 00005555565c0400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 58.222646] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.223546] CR2: 00007f76601726f4 CR3: 00000000147a8000 CR4: 0000000000350ef0 [ 58.224645] Call Trace: [ 58.225081] [ 58.225446] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 58.226235] ipv6_frags_init_net+0x206/0x3c0 [ 58.226949] ops_init+0xbb/0x6b0 [ 58.227491] setup_net+0x3d9/0x990 [ 58.228081] ? down_read_killable+0x1d7/0x4e0 [ 58.228783] ? __pfx_setup_net+0x10/0x10 [ 58.229449] ? copy_net_ns+0x17c/0x770 [ 58.230110] copy_net_ns+0x321/0x770 [ 58.230695] create_new_namespaces+0x3f6/0xb30 [ 58.231429] unshare_nsproxy_namespaces+0xc1/0x200 [ 58.232216] ksys_unshare+0x44d/0x8e0 [ 58.232839] ? __pfx_ksys_unshare+0x10/0x10 [ 58.233506] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 58.234435] __x64_sys_unshare+0x31/0x40 [ 58.235094] do_syscall_64+0x3f/0x90 [ 58.235675] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 58.236505] RIP: 0033:0x7fdccf12e0d7 [ 58.237106] 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 [ 58.239765] RSP: 002b:00007ffc4dc852a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 58.240933] RAX: ffffffffffffffda RBX: 00007ffc4dc858e8 RCX: 00007fdccf12e0d7 [ 58.242040] RDX: 00007fdccf19841f RSI: 00007ffc4dc85240 RDI: 0000000040000000 [ 58.243111] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffc4dc85050 [ 58.244193] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fdccf240bf0 [ 58.245269] R13: 00007ffc4dc85380 R14: 0000000000000000 R15: 00000000000000f8 [ 58.246397] [ 58.246765] irq event stamp: 10043 [ 58.247323] hardirqs last enabled at (10055): [] __up_console_sem+0x78/0x80 [ 58.248612] hardirqs last disabled at (10066): [] __up_console_sem+0x5d/0x80 [ 58.249925] softirqs last enabled at (9532): [] irq_exit_rcu+0x93/0xc0 [ 58.251176] softirqs last disabled at (9527): [] irq_exit_rcu+0x93/0xc0 [ 58.252422] ---[ end trace 0000000000000000 ]--- [ 58.254090] ------------[ cut here ]------------ [ 58.254795] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 58.257146] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 58.258432] Modules linked in: [ 58.258959] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 58.260368] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 58.261595] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 58.262426] 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 [ 58.265061] RSP: 0018:ffff88801ff57bf0 EFLAGS: 00010286 [ 58.265891] RAX: 0000000000000000 RBX: ffff8880165d4240 RCX: 0000000000000000 [ 58.266954] RDX: ffff888018541b40 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 58.268032] RBP: ffff8880165d4254 R08: 0000000000000001 R09: 0000000000000000 [ 58.269094] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 58.270187] R13: ffffffff84e23fe0 R14: ffff8880165d4248 R15: ffffffff84db0aa0 [ 58.271274] FS: 00005555565c0400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 58.272463] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.273347] CR2: 00007f76601726f4 CR3: 00000000147a8000 CR4: 0000000000350ef0 [ 58.274445] Call Trace: [ 58.274878] [ 58.275233] nf_ct_net_init+0x224/0x3d0 [ 58.275884] ? __pfx_nf_ct_net_init+0x10/0x10 [ 58.276571] ops_init+0xbb/0x6b0 [ 58.277139] setup_net+0x3d9/0x990 [ 58.277696] ? down_read_killable+0x1d7/0x4e0 [ 58.278415] ? __pfx_setup_net+0x10/0x10 [ 58.279052] ? copy_net_ns+0x17c/0x770 [ 58.279675] copy_net_ns+0x321/0x770 [ 58.280290] create_new_namespaces+0x3f6/0xb30 [ 58.281029] unshare_nsproxy_namespaces+0xc1/0x200 [ 58.281757] ksys_unshare+0x44d/0x8e0 [ 58.282387] ? __pfx_ksys_unshare+0x10/0x10 [ 58.283073] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 58.283961] __x64_sys_unshare+0x31/0x40 [ 58.284579] do_syscall_64+0x3f/0x90 [ 58.285195] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 58.286023] RIP: 0033:0x7fdccf12e0d7 [ 58.286581] 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 [ 58.289169] RSP: 002b:00007ffc4dc852a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 58.290301] RAX: ffffffffffffffda RBX: 00007ffc4dc858e8 RCX: 00007fdccf12e0d7 [ 58.291371] RDX: 00007fdccf19841f RSI: 00007ffc4dc85240 RDI: 0000000040000000 [ 58.292504] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffc4dc85050 [ 58.293572] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fdccf240bf0 [ 58.294960] R13: 00007ffc4dc85380 R14: 0000000000000000 R15: 00000000000000f8 [ 58.296176] [ 58.296572] irq event stamp: 10879 [ 58.297182] hardirqs last enabled at (10891): [] __up_console_sem+0x78/0x80 [ 58.298620] hardirqs last disabled at (10902): [] __up_console_sem+0x5d/0x80 [ 58.300016] softirqs last enabled at (10828): [] irq_exit_rcu+0x93/0xc0 [ 58.301373] softirqs last disabled at (10819): [] irq_exit_rcu+0x93/0xc0 [ 58.302693] ---[ end trace 0000000000000000 ]--- executing program [ 59.828498] Bluetooth: hci0: command 0x0409 tx timeout [ 61.875937] Bluetooth: hci0: command 0x041b tx timeout executing program [ 63.924255] Bluetooth: hci0: command 0x040f tx timeout executing program [ 65.971872] Bluetooth: hci0: command 0x0419 tx timeout VM DIAGNOSIS: 14:18:52 Registers: info registers vcpu 0 RAX=000000000000007a RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507f85 RDI=ffffffff87f2dc00 RBP=ffffffff87f2dbc0 RSP=ffff88801ff575f0 R8 =0000000000000001 R9 =000000000000000a R10=000000000000007a R11=0000000000000001 R12=000000000000007a 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 00005555565c0400 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=00007f76601726f4 CR3=00000000147a8000 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=0000000000032631 RBX=0000000000000001 RCX=ffffffff844d0a0e RDX=0000000000000000 RSI=0000000000000000 RDI=ffffffff81287415 RBP=dffffc0000000000 RSP=ffff888008dcfe70 R8 =0000000000000001 R9 =ffffed100d9e69f8 R10=ffff88806cf34fc3 R11=0000000000000001 R12=ffffffff85d35a10 R13=1ffff110011b9fd3 R14=0000000000000000 R15=0000000000000000 RIP=ffffffff844d199f 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=00007f07aa3d20a0 CR3=000000000e8fa000 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=13d470cf1f2037aff64c0e2865ab4c2b XMM02=6b1e99b806172e3b00000000000aea28 XMM03=ac8bc31478ec851100000000000aefa0 XMM04=7c5341df1a384bdb000000000013c4c0 XMM05=d3fdd5f48436fbd700000000000aead0 XMM06=4c73fa47141683cf00000000000ae988 XMM07=a1fcdcf819d7e1e500000000000ae728 XMM08=44495f474f4c5359530069253d595449 XMM09=00000000000000000000000000000000 XMM10=00000000000000000020000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000