syzkaller login: [ 42.920382] sshd (225) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:53463' (ECDSA) to the list of known hosts. 2023/05/17 12:13:14 fuzzer started 2023/05/17 12:13:14 dialing manager at localhost:44319 2023/05/17 12:13:14 checking machine... 2023/05/17 12:13:14 checking revisions... [ 44.127769] kmemleak: Automatic memory scanning thread ended 2023/05/17 12:13:14 testing simple program... [ 44.199624] cgroup: Unknown subsys name 'net' [ 44.273506] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 57.583279] audit: type=1400 audit(1684325608.159:6): 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 [ 58.724370] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 58.726051] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 58.727427] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 58.730593] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 58.732431] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 58.733798] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 executing program [ 59.140944] ------------[ cut here ]------------ [ 59.142167] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 59.144214] WARNING: CPU: 0 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 59.145569] Modules linked in: [ 59.146133] CPU: 0 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 59.150770] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 59.151801] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 59.152487] 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 [ 59.154712] RSP: 0018:ffff88801e83fc00 EFLAGS: 00010282 [ 59.155400] RAX: 0000000000000000 RBX: ffff88800f324440 RCX: 0000000000000000 [ 59.156323] RDX: ffff88801e830000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 59.157219] RBP: ffff88800f324454 R08: 0000000000000001 R09: 0000000000000000 [ 59.158121] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 59.158996] R13: ffffffff84e23fe0 R14: ffff88800f324448 R15: ffffffff84d74dc0 [ 59.159898] FS: 0000555557417400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 59.160902] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.161665] CR2: 00007f3b21c296f4 CR3: 000000000df68000 CR4: 0000000000350ef0 [ 59.162585] Call Trace: [ 59.162917] [ 59.163253] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 59.163866] ipv4_frags_init_net+0x269/0x440 [ 59.164472] ops_init+0xbb/0x6b0 [ 59.164922] setup_net+0x3d9/0x990 [ 59.165419] ? down_read_killable+0x1d7/0x4e0 [ 59.166020] ? __pfx_setup_net+0x10/0x10 [ 59.166581] ? copy_net_ns+0x17c/0x770 [ 59.167133] copy_net_ns+0x321/0x770 [ 59.167621] create_new_namespaces+0x3f6/0xb30 [ 59.168250] unshare_nsproxy_namespaces+0xc1/0x200 [ 59.168876] ksys_unshare+0x44d/0x8e0 [ 59.169417] ? __pfx_ksys_unshare+0x10/0x10 [ 59.169993] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 59.170768] __x64_sys_unshare+0x31/0x40 [ 59.171330] do_syscall_64+0x3f/0x90 [ 59.171819] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 59.172508] RIP: 0033:0x7f784feb20d7 [ 59.172977] 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 [ 59.175183] RSP: 002b:00007fff95b5f638 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 59.176143] RAX: ffffffffffffffda RBX: 00007fff95b5fc78 RCX: 00007f784feb20d7 [ 59.177019] RDX: 00007f784ff1c41f RSI: 00007fff95b5f5d0 RDI: 0000000040000000 [ 59.177923] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fff95b5f3e0 [ 59.178828] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f784ffc4bf0 [ 59.179733] R13: 00007fff95b5f710 R14: 0000000000000000 R15: 00000000000000f8 [ 59.180653] [ 59.180957] irq event stamp: 8213 [ 59.181422] hardirqs last enabled at (8225): [] __up_console_sem+0x78/0x80 [ 59.182509] hardirqs last disabled at (8236): [] __up_console_sem+0x5d/0x80 [ 59.183597] softirqs last enabled at (8122): [] irq_exit_rcu+0x93/0xc0 [ 59.184645] softirqs last disabled at (8117): [] irq_exit_rcu+0x93/0xc0 [ 59.185701] ---[ end trace 0000000000000000 ]--- [ 59.191546] ------------[ cut here ]------------ [ 59.192174] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 59.193896] WARNING: CPU: 0 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 59.194982] Modules linked in: [ 59.195432] CPU: 0 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 59.196624] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 59.197658] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 59.198360] 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 [ 59.200583] RSP: 0018:ffff88801e83fc00 EFLAGS: 00010282 [ 59.201276] RAX: 0000000000000000 RBX: ffff88800c5bd640 RCX: 0000000000000000 [ 59.202201] RDX: ffff88801e830000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 59.203064] RBP: ffff88800c5bd654 R08: 0000000000000001 R09: 0000000000000000 [ 59.203962] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 59.204873] R13: ffffffff84e23fe0 R14: ffff88800c5bd648 R15: ffffffff84da7d60 [ 59.205784] FS: 0000555557417400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 59.206803] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.207548] CR2: 00007f3b21c296f4 CR3: 000000000df68000 CR4: 0000000000350ef0 [ 59.208456] Call Trace: [ 59.208789] [ 59.209121] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 59.209760] ipv6_frags_init_net+0x206/0x3c0 [ 59.210361] ops_init+0xbb/0x6b0 [ 59.210818] setup_net+0x3d9/0x990 [ 59.211308] ? down_read_killable+0x1d7/0x4e0 [ 59.211886] ? __pfx_setup_net+0x10/0x10 [ 59.212436] ? copy_net_ns+0x17c/0x770 [ 59.212955] copy_net_ns+0x321/0x770 [ 59.213477] create_new_namespaces+0x3f6/0xb30 [ 59.214114] unshare_nsproxy_namespaces+0xc1/0x200 [ 59.214747] ksys_unshare+0x44d/0x8e0 [ 59.215278] ? __pfx_ksys_unshare+0x10/0x10 [ 59.215833] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 59.216586] __x64_sys_unshare+0x31/0x40 [ 59.217138] do_syscall_64+0x3f/0x90 [ 59.217620] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 59.218317] RIP: 0033:0x7f784feb20d7 [ 59.218789] 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 [ 59.220997] RSP: 002b:00007fff95b5f638 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 59.221988] RAX: ffffffffffffffda RBX: 00007fff95b5fc78 RCX: 00007f784feb20d7 [ 59.222879] RDX: 00007f784ff1c41f RSI: 00007fff95b5f5d0 RDI: 0000000040000000 [ 59.223778] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fff95b5f3e0 [ 59.224684] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f784ffc4bf0 [ 59.225597] R13: 00007fff95b5f710 R14: 0000000000000000 R15: 00000000000000f8 [ 59.226522] [ 59.226825] irq event stamp: 9917 [ 59.227280] hardirqs last enabled at (9929): [] __up_console_sem+0x78/0x80 [ 59.228329] hardirqs last disabled at (9940): [] __up_console_sem+0x5d/0x80 [ 59.229390] softirqs last enabled at (9412): [] irq_exit_rcu+0x93/0xc0 [ 59.230421] softirqs last disabled at (9383): [] irq_exit_rcu+0x93/0xc0 [ 59.231455] ---[ end trace 0000000000000000 ]--- [ 59.232808] ------------[ cut here ]------------ [ 59.233449] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 59.235423] WARNING: CPU: 0 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 59.236495] Modules linked in: [ 59.236905] CPU: 0 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 59.238081] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 59.239121] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 59.239761] 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 [ 59.241945] RSP: 0018:ffff88801e83fbf0 EFLAGS: 00010286 [ 59.242628] RAX: 0000000000000000 RBX: ffff88800c5bc040 RCX: 0000000000000000 [ 59.243513] RDX: ffff88801e830000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 59.244416] RBP: ffff88800c5bc054 R08: 0000000000000001 R09: 0000000000000000 [ 59.245306] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 59.246216] R13: ffffffff84e23fe0 R14: ffff88800c5bc048 R15: ffffffff84db0aa0 [ 59.247077] FS: 0000555557417400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 59.248078] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.248820] CR2: 00007f3b21c296f4 CR3: 000000000df68000 CR4: 0000000000350ef0 [ 59.249735] Call Trace: [ 59.250064] [ 59.250402] nf_ct_net_init+0x224/0x3d0 [ 59.250923] ? __pfx_nf_ct_net_init+0x10/0x10 [ 59.251524] ops_init+0xbb/0x6b0 [ 59.251980] setup_net+0x3d9/0x990 [ 59.252473] ? down_read_killable+0x1d7/0x4e0 [ 59.253061] ? __pfx_setup_net+0x10/0x10 [ 59.253606] ? copy_net_ns+0x17c/0x770 [ 59.254147] copy_net_ns+0x321/0x770 [ 59.254638] create_new_namespaces+0x3f6/0xb30 [ 59.255255] unshare_nsproxy_namespaces+0xc1/0x200 [ 59.255883] ksys_unshare+0x44d/0x8e0 [ 59.256403] ? __pfx_ksys_unshare+0x10/0x10 [ 59.256952] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 59.257695] __x64_sys_unshare+0x31/0x40 [ 59.258267] do_syscall_64+0x3f/0x90 [ 59.258747] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 59.259438] RIP: 0033:0x7f784feb20d7 [ 59.259915] 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 [ 59.262122] RSP: 002b:00007fff95b5f638 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 59.263045] RAX: ffffffffffffffda RBX: 00007fff95b5fc78 RCX: 00007f784feb20d7 [ 59.263944] RDX: 00007f784ff1c41f RSI: 00007fff95b5f5d0 RDI: 0000000040000000 [ 59.264834] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fff95b5f3e0 [ 59.265755] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f784ffc4bf0 [ 59.266648] R13: 00007fff95b5f710 R14: 0000000000000000 R15: 00000000000000f8 [ 59.267574] [ 59.267881] irq event stamp: 10729 [ 59.268359] hardirqs last enabled at (10741): [] __up_console_sem+0x78/0x80 [ 59.269441] hardirqs last disabled at (10752): [] __up_console_sem+0x5d/0x80 [ 59.270554] softirqs last enabled at (10276): [] irq_exit_rcu+0x93/0xc0 [ 59.271611] softirqs last disabled at (10271): [] irq_exit_rcu+0x93/0xc0 [ 59.272670] ---[ end trace 0000000000000000 ]--- [ 60.809519] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 62.857153] Bluetooth: hci0: command 0x041b tx timeout [ 64.905165] Bluetooth: hci0: command 0x040f tx timeout executing program [ 66.953929] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 12:13:22 Registers: info registers vcpu 0 RAX=0000000000000043 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507f85 RDI=ffffffff87f2dc00 RBP=ffffffff87f2dbc0 RSP=ffff88801e83f5f0 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000043 R11=0000000000000001 R12=0000000000000043 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 0000555557417400 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=00007f3b21c296f4 CR3=000000000df68000 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=0000000000034b4b 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=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=00007fd194b1afc0 CR3=000000000ed1e000 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=28c2eacf2c4d0c990d41451cd6ec8f36 XMM02=6b1e99b806172e3b00000000000aea28 XMM03=ac8bc31478ec851100000000000aefa0 XMM04=d1d82a18fb7a8d15000000000013c700 XMM05=d3fdd5f48436fbd700000000000aead0 XMM06=d2931c0c45b2165700000000000ae988 XMM07=a1fcdcf819d7e1e500000000000ae728 XMM08=44495f474f4c5359530069253d595449 XMM09=00000000000000000000000000000000 XMM10=00200000000000000020000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000