syzkaller login: [ 57.752264] sshd (225) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:31836' (ECDSA) to the list of known hosts. 2023/05/18 00:12:38 fuzzer started 2023/05/18 00:12:39 dialing manager at localhost:44319 2023/05/18 00:12:39 checking machine... 2023/05/18 00:12:39 checking revisions... [ 58.959332] kmemleak: Automatic memory scanning thread ended 2023/05/18 00:12:39 testing simple program... [ 59.025994] cgroup: Unknown subsys name 'net' [ 59.107813] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 72.541899] audit: type=1400 audit(1684368772.794:6): 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 [ 73.671736] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 73.673247] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 73.674940] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 73.678028] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 73.679462] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 73.680787] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 executing program [ 74.070306] ------------[ cut here ]------------ [ 74.071232] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 74.073345] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 74.074705] Modules linked in: [ 74.075177] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 74.079833] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 74.080915] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 74.081632] 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 [ 74.083980] RSP: 0018:ffff888013dcfc00 EFLAGS: 00010282 [ 74.084718] RAX: 0000000000000000 RBX: ffff888015a58440 RCX: 0000000000000000 [ 74.085651] RDX: ffff88800b82b680 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 74.086576] RBP: ffff888015a58454 R08: 0000000000000001 R09: 0000000000000000 [ 74.087516] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 74.088452] R13: ffffffff84e23fe0 R14: ffff888015a58448 R15: ffffffff84d74dc0 [ 74.089405] FS: 0000555555e65400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 74.090489] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.091237] CR2: 00007f9eb8ef76f4 CR3: 00000000095fc000 CR4: 0000000000350ef0 [ 74.092208] Call Trace: [ 74.092580] [ 74.092899] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 74.093572] ipv4_frags_init_net+0x269/0x440 [ 74.094160] ops_init+0xbb/0x6b0 [ 74.094654] setup_net+0x3d9/0x990 [ 74.095138] ? down_read_killable+0x1d7/0x4e0 [ 74.095768] ? __pfx_setup_net+0x10/0x10 [ 74.096317] ? copy_net_ns+0x17c/0x770 [ 74.096882] copy_net_ns+0x321/0x770 [ 74.097393] create_new_namespaces+0x3f6/0xb30 [ 74.098046] unshare_nsproxy_namespaces+0xc1/0x200 [ 74.098722] ksys_unshare+0x44d/0x8e0 [ 74.099237] ? __pfx_ksys_unshare+0x10/0x10 [ 74.099869] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 74.100652] __x64_sys_unshare+0x31/0x40 [ 74.101188] do_syscall_64+0x3f/0x90 [ 74.101737] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 74.102428] RIP: 0033:0x7f76c19600d7 [ 74.102946] 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 [ 74.105290] RSP: 002b:00007fffe3272a08 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 74.106290] RAX: ffffffffffffffda RBX: 00007fffe3273048 RCX: 00007f76c19600d7 [ 74.107236] RDX: 00007f76c19ca41f RSI: 00007fffe32729a0 RDI: 0000000040000000 [ 74.108194] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fffe32727b0 [ 74.109045] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f76c1a72bf0 [ 74.109895] R13: 00007fffe3272ae0 R14: 0000000000000000 R15: 00000000000000f8 [ 74.110759] [ 74.111051] irq event stamp: 7977 [ 74.111451] hardirqs last enabled at (7987): [] __up_console_sem+0x78/0x80 [ 74.112529] hardirqs last disabled at (8000): [] __up_console_sem+0x5d/0x80 [ 74.113602] softirqs last enabled at (7458): [] irq_exit_rcu+0x93/0xc0 [ 74.114640] softirqs last disabled at (7425): [] irq_exit_rcu+0x93/0xc0 [ 74.115683] ---[ end trace 0000000000000000 ]--- [ 74.120667] ------------[ cut here ]------------ [ 74.121265] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 74.122908] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 74.123915] Modules linked in: [ 74.124303] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 74.125394] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 74.126345] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 74.126986] 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 [ 74.129339] RSP: 0018:ffff888013dcfc00 EFLAGS: 00010282 [ 74.130007] RAX: 0000000000000000 RBX: ffff88800909a840 RCX: 0000000000000000 [ 74.130842] RDX: ffff88800b82b680 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 74.131704] RBP: ffff88800909a854 R08: 0000000000000001 R09: 0000000000000000 [ 74.132539] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 74.133339] R13: ffffffff84e23fe0 R14: ffff88800909a848 R15: ffffffff84da7d60 [ 74.134189] FS: 0000555555e65400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 74.135125] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.135843] CR2: 00007f9eb8ef76f4 CR3: 00000000095fc000 CR4: 0000000000350ef0 [ 74.136693] Call Trace: [ 74.137004] [ 74.137289] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 74.137905] ipv6_frags_init_net+0x206/0x3c0 [ 74.138438] ops_init+0xbb/0x6b0 [ 74.138893] setup_net+0x3d9/0x990 [ 74.139330] ? down_read_killable+0x1d7/0x4e0 [ 74.139912] ? __pfx_setup_net+0x10/0x10 [ 74.140406] ? copy_net_ns+0x17c/0x770 [ 74.140922] copy_net_ns+0x321/0x770 [ 74.141403] create_new_namespaces+0x3f6/0xb30 [ 74.142022] unshare_nsproxy_namespaces+0xc1/0x200 [ 74.142659] ksys_unshare+0x44d/0x8e0 [ 74.143156] ? __pfx_ksys_unshare+0x10/0x10 [ 74.143758] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 74.144510] __x64_sys_unshare+0x31/0x40 [ 74.145030] do_syscall_64+0x3f/0x90 [ 74.145532] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 74.146183] RIP: 0033:0x7f76c19600d7 [ 74.146683] 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 [ 74.148855] RSP: 002b:00007fffe3272a08 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 74.149808] RAX: ffffffffffffffda RBX: 00007fffe3273048 RCX: 00007f76c19600d7 [ 74.150704] RDX: 00007f76c19ca41f RSI: 00007fffe32729a0 RDI: 0000000040000000 [ 74.151598] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fffe32727b0 [ 74.152588] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f76c1a72bf0 [ 74.153454] R13: 00007fffe3272ae0 R14: 0000000000000000 R15: 00000000000000f8 [ 74.154370] [ 74.154692] irq event stamp: 9771 [ 74.155119] hardirqs last enabled at (9781): [] __up_console_sem+0x78/0x80 [ 74.156191] hardirqs last disabled at (9792): [] __up_console_sem+0x5d/0x80 [ 74.157247] softirqs last enabled at (8932): [] irq_exit_rcu+0x93/0xc0 [ 74.158279] softirqs last disabled at (8919): [] irq_exit_rcu+0x93/0xc0 [ 74.159303] ---[ end trace 0000000000000000 ]--- [ 74.160724] ------------[ cut here ]------------ [ 74.161309] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 74.163165] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 74.164398] Modules linked in: [ 74.164907] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 74.166208] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 74.167308] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 74.168082] 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 [ 74.170452] RSP: 0018:ffff888013dcfbf0 EFLAGS: 00010286 [ 74.171142] RAX: 0000000000000000 RBX: ffff88800909b240 RCX: 0000000000000000 [ 74.172053] RDX: ffff88800b82b680 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 74.172946] RBP: ffff88800909b254 R08: 0000000000000001 R09: 0000000000000000 [ 74.173940] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 74.174953] R13: ffffffff84e23fe0 R14: ffff88800909b248 R15: ffffffff84db0aa0 [ 74.175946] FS: 0000555555e65400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 74.177026] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.177837] CR2: 00007f9eb8ef76f4 CR3: 00000000095fc000 CR4: 0000000000350ef0 [ 74.178821] Call Trace: [ 74.179183] [ 74.179549] nf_ct_net_init+0x224/0x3d0 [ 74.180131] ? __pfx_nf_ct_net_init+0x10/0x10 [ 74.180786] ops_init+0xbb/0x6b0 [ 74.181268] setup_net+0x3d9/0x990 [ 74.181796] ? down_read_killable+0x1d7/0x4e0 [ 74.182410] ? __pfx_setup_net+0x10/0x10 [ 74.183021] ? copy_net_ns+0x17c/0x770 [ 74.183616] copy_net_ns+0x321/0x770 [ 74.184173] create_new_namespaces+0x3f6/0xb30 [ 74.184849] unshare_nsproxy_namespaces+0xc1/0x200 [ 74.185549] ksys_unshare+0x44d/0x8e0 [ 74.186081] ? __pfx_ksys_unshare+0x10/0x10 [ 74.186728] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 74.187533] __x64_sys_unshare+0x31/0x40 [ 74.188102] do_syscall_64+0x3f/0x90 [ 74.188674] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 74.189389] RIP: 0033:0x7f76c19600d7 [ 74.189929] 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 [ 74.192338] RSP: 002b:00007fffe3272a08 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 74.193405] RAX: ffffffffffffffda RBX: 00007fffe3273048 RCX: 00007f76c19600d7 [ 74.194394] RDX: 00007f76c19ca41f RSI: 00007fffe32729a0 RDI: 0000000040000000 [ 74.195371] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fffe32727b0 [ 74.196390] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f76c1a72bf0 [ 74.197393] R13: 00007fffe3272ae0 R14: 0000000000000000 R15: 00000000000000f8 [ 74.198397] [ 74.198759] irq event stamp: 10593 [ 74.199238] hardirqs last enabled at (10603): [] __up_console_sem+0x78/0x80 [ 74.200422] hardirqs last disabled at (10614): [] __up_console_sem+0x5d/0x80 [ 74.201619] softirqs last enabled at (10362): [] irq_exit_rcu+0x93/0xc0 [ 74.202756] softirqs last disabled at (10357): [] irq_exit_rcu+0x93/0xc0 [ 74.203906] ---[ end trace 0000000000000000 ]--- [ 75.752953] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 77.799804] Bluetooth: hci0: command 0x041b tx timeout executing program [ 79.847812] Bluetooth: hci0: command 0x040f tx timeout [ 81.895562] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 00:12:31 Registers: info registers vcpu 0 RAX=0000000000000020 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507f85 RDI=ffffffff87f2dc00 RBP=ffffffff87f2dbc0 RSP=ffff888013dcf5f0 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 0000555555e65400 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=00007f9eb8ef76f4 CR3=00000000095fc000 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=00000000000576c7 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=00007f750b7a4000 CR3=000000000ef84000 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=e19120ce9f941fa32144766eb267c81b XMM02=6b1e99b806172e3b00000000000aea28 XMM03=ac8bc31478ec851100000000000aefa0 XMM04=208388a8625a4c2f000000000013cea8 XMM05=d3fdd5f48436fbd700000000000aead0 XMM06=97ae8788bbe272aa00000000000ae988 XMM07=a1fcdcf819d7e1e500000000000ae728 XMM08=44495f474f4c5359530069253d595449 XMM09=00000000000000000000000000000000 XMM10=00200000000000000020000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000