Debian GNU/Linux 11 syzkaller ttyS0 syzkaller login: [ 41.435743] sshd (223) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:37678' (ECDSA) to the list of known hosts. 2023/05/17 17:29:18 fuzzer started 2023/05/17 17:29:19 dialing manager at localhost:44319 2023/05/17 17:29:19 checking machine... 2023/05/17 17:29:19 checking revisions... [ 42.587273] kmemleak: Automatic memory scanning thread ended 2023/05/17 17:29:19 testing simple program... [ 42.663990] cgroup: Unknown subsys name 'net' [ 42.757034] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 54.576560] audit: type=1400 audit(1684344571.235:6): avc: denied { execmem } for pid=255 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 55.713245] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 55.716072] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 55.717569] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 55.720914] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 55.722687] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 55.724011] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 56.137282] ------------[ cut here ]------------ [ 56.138077] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 56.139996] WARNING: CPU: 1 PID: 256 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 56.141255] Modules linked in: [ 56.141762] CPU: 1 PID: 256 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 56.147143] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 56.148168] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 56.148846] 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 [ 56.151050] RSP: 0018:ffff888016eefc00 EFLAGS: 00010282 [ 56.151735] RAX: 0000000000000000 RBX: ffff88800e629440 RCX: 0000000000000000 [ 56.152632] RDX: ffff888019600000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 56.153544] RBP: ffff88800e629454 R08: 0000000000000001 R09: 0000000000000000 [ 56.154428] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 56.155365] R13: ffffffff84e23fe0 R14: ffff88800e629448 R15: ffffffff84d74dc0 [ 56.156292] FS: 0000555555ea2400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 56.157336] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.158121] CR2: 000055a396712b30 CR3: 0000000016b6c000 CR4: 0000000000350ee0 [ 56.159039] Call Trace: [ 56.159386] [ 56.159727] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 56.160364] ipv4_frags_init_net+0x269/0x440 [ 56.160980] ops_init+0xbb/0x6b0 [ 56.161473] setup_net+0x3d9/0x990 [ 56.161978] ? down_read_killable+0x1d7/0x4e0 [ 56.162611] ? __pfx_setup_net+0x10/0x10 [ 56.163149] ? copy_net_ns+0x17c/0x770 [ 56.163713] copy_net_ns+0x321/0x770 [ 56.164220] create_new_namespaces+0x3f6/0xb30 [ 56.164872] unshare_nsproxy_namespaces+0xc1/0x200 [ 56.165542] ksys_unshare+0x44d/0x8e0 [ 56.166068] ? __pfx_ksys_unshare+0x10/0x10 [ 56.166658] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 56.167402] __x64_sys_unshare+0x31/0x40 [ 56.167968] do_syscall_64+0x3f/0x90 [ 56.168496] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 56.169169] RIP: 0033:0x7f9d7ee1c0d7 [ 56.169683] 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 [ 56.171957] RSP: 002b:00007ffc6591af08 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 56.172950] RAX: ffffffffffffffda RBX: 00007ffc6591b548 RCX: 00007f9d7ee1c0d7 [ 56.173943] RDX: 00007f9d7ee8641f RSI: 00007ffc6591aea0 RDI: 0000000040000000 [ 56.174881] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffc6591acb0 [ 56.175807] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f9d7ef2ebf0 [ 56.176732] R13: 00007ffc6591afe0 R14: 0000000000000000 R15: 00000000000000f8 [ 56.177678] [ 56.178005] irq event stamp: 8171 [ 56.178482] hardirqs last enabled at (8183): [] __up_console_sem+0x78/0x80 [ 56.179589] hardirqs last disabled at (8194): [] __up_console_sem+0x5d/0x80 [ 56.180706] softirqs last enabled at (7954): [] irq_exit_rcu+0x93/0xc0 [ 56.181806] softirqs last disabled at (7949): [] irq_exit_rcu+0x93/0xc0 [ 56.182912] ---[ end trace 0000000000000000 ]--- [ 56.188903] ------------[ cut here ]------------ [ 56.189544] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 56.191185] WARNING: CPU: 1 PID: 256 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 56.192255] Modules linked in: [ 56.192708] CPU: 1 PID: 256 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 56.193895] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 56.194929] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 56.195616] 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 [ 56.197805] RSP: 0018:ffff888016eefc00 EFLAGS: 00010282 [ 56.198486] RAX: 0000000000000000 RBX: ffff88800e807a40 RCX: 0000000000000000 [ 56.199387] RDX: ffff888019600000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 56.200315] RBP: ffff88800e807a54 R08: 0000000000000001 R09: 0000000000000000 [ 56.201245] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 56.202203] R13: ffffffff84e23fe0 R14: ffff88800e807a48 R15: ffffffff84da7d60 [ 56.203137] FS: 0000555555ea2400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 56.204178] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.204948] CR2: 000055a396712b30 CR3: 0000000016b6c000 CR4: 0000000000350ee0 [ 56.205900] Call Trace: [ 56.206237] [ 56.206574] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 56.207216] ipv6_frags_init_net+0x206/0x3c0 [ 56.207841] ops_init+0xbb/0x6b0 [ 56.208306] setup_net+0x3d9/0x990 [ 56.208803] ? down_read_killable+0x1d7/0x4e0 [ 56.209379] ? __pfx_setup_net+0x10/0x10 [ 56.209947] ? copy_net_ns+0x17c/0x770 [ 56.210486] copy_net_ns+0x321/0x770 [ 56.210976] create_new_namespaces+0x3f6/0xb30 [ 56.211584] unshare_nsproxy_namespaces+0xc1/0x200 [ 56.212206] ksys_unshare+0x44d/0x8e0 [ 56.212726] ? __pfx_ksys_unshare+0x10/0x10 [ 56.213269] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 56.214023] __x64_sys_unshare+0x31/0x40 [ 56.214572] do_syscall_64+0x3f/0x90 [ 56.215053] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 56.215718] RIP: 0033:0x7f9d7ee1c0d7 [ 56.216186] 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 [ 56.218375] RSP: 002b:00007ffc6591af08 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 56.219329] RAX: ffffffffffffffda RBX: 00007ffc6591b548 RCX: 00007f9d7ee1c0d7 [ 56.220223] RDX: 00007f9d7ee8641f RSI: 00007ffc6591aea0 RDI: 0000000040000000 [ 56.221115] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffc6591acb0 [ 56.222018] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f9d7ef2ebf0 [ 56.222922] R13: 00007ffc6591afe0 R14: 0000000000000000 R15: 00000000000000f8 [ 56.223863] [ 56.224170] irq event stamp: 10341 [ 56.224653] hardirqs last enabled at (10353): [] __up_console_sem+0x78/0x80 [ 56.225749] hardirqs last disabled at (10364): [] __up_console_sem+0x5d/0x80 [ 56.226880] softirqs last enabled at (10378): [] irq_exit_rcu+0x93/0xc0 [ 56.227958] softirqs last disabled at (10373): [] irq_exit_rcu+0x93/0xc0 [ 56.229041] ---[ end trace 0000000000000000 ]--- [ 56.230398] ------------[ cut here ]------------ [ 56.231043] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 56.232973] WARNING: CPU: 1 PID: 256 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 56.234105] Modules linked in: [ 56.234555] CPU: 1 PID: 256 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 56.235757] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 56.236802] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 56.237515] 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 [ 56.239837] RSP: 0018:ffff888016eefbf0 EFLAGS: 00010286 [ 56.240540] RAX: 0000000000000000 RBX: ffff88800e807440 RCX: 0000000000000000 [ 56.241432] RDX: ffff888019600000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 56.242344] RBP: ffff88800e807454 R08: 0000000000000001 R09: 0000000000000000 [ 56.243241] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 56.244137] R13: ffffffff84e23fe0 R14: ffff88800e807448 R15: ffffffff84db0aa0 [ 56.245037] FS: 0000555555ea2400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 56.246050] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.246795] CR2: 000055a396712b30 CR3: 0000000016b6c000 CR4: 0000000000350ee0 [ 56.247702] Call Trace: [ 56.248043] [ 56.248339] nf_ct_net_init+0x224/0x3d0 [ 56.248893] ? __pfx_nf_ct_net_init+0x10/0x10 [ 56.249506] ops_init+0xbb/0x6b0 [ 56.249970] setup_net+0x3d9/0x990 [ 56.250484] ? down_read_killable+0x1d7/0x4e0 [ 56.251052] ? __pfx_setup_net+0x10/0x10 [ 56.251601] ? copy_net_ns+0x17c/0x770 [ 56.252114] copy_net_ns+0x321/0x770 [ 56.252634] create_new_namespaces+0x3f6/0xb30 [ 56.253218] unshare_nsproxy_namespaces+0xc1/0x200 [ 56.253890] ksys_unshare+0x44d/0x8e0 [ 56.254380] ? __pfx_ksys_unshare+0x10/0x10 [ 56.254960] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 56.255707] __x64_sys_unshare+0x31/0x40 [ 56.256225] do_syscall_64+0x3f/0x90 [ 56.256732] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 56.257380] RIP: 0033:0x7f9d7ee1c0d7 [ 56.257885] 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 [ 56.260116] RSP: 002b:00007ffc6591af08 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 56.261078] RAX: ffffffffffffffda RBX: 00007ffc6591b548 RCX: 00007f9d7ee1c0d7 [ 56.261984] RDX: 00007f9d7ee8641f RSI: 00007ffc6591aea0 RDI: 0000000040000000 [ 56.262877] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffc6591acb0 [ 56.263779] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f9d7ef2ebf0 [ 56.264639] R13: 00007ffc6591afe0 R14: 0000000000000000 R15: 00000000000000f8 [ 56.265512] [ 56.265806] irq event stamp: 11073 [ 56.266216] hardirqs last enabled at (11083): [] __up_console_sem+0x78/0x80 [ 56.267224] hardirqs last disabled at (11094): [] __up_console_sem+0x5d/0x80 [ 56.268236] softirqs last enabled at (10378): [] irq_exit_rcu+0x93/0xc0 [ 56.269232] softirqs last disabled at (10373): [] irq_exit_rcu+0x93/0xc0 [ 56.270236] ---[ end trace 0000000000000000 ]--- executing program [ 57.795060] Bluetooth: hci0: command 0x0409 tx timeout [ 59.842540] Bluetooth: hci0: command 0x041b tx timeout executing program [ 61.890527] Bluetooth: hci0: command 0x040f tx timeout executing program [ 63.939529] Bluetooth: hci0: command 0x0419 tx timeout VM DIAGNOSIS: 17:29:26 Registers: info registers vcpu 0 RAX=dffffc0000000000 RBX=74249cde0075706e RCX=ffff88800cb075b0 RDX=1ffff11002d7bb74 RSI=0000000000000000 RDI=ffff888016bddba0 RBP=1ffff11001960eae RSP=ffff88800cb07560 R8 =0000000000000001 R9 =ffff888016bddba8 R10=ffffffff85d35a17 R11=0000000000000001 R12=0000000000000001 R13=ffffffff8180b238 R14=0000000000000002 R15=ffff888016bdd1c0 RIP=ffffffff812d6f00 RFL=00000046 [---Z-P-] 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 00007f1222ec1900 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=00007f12223bc080 CR3=000000000e580000 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=ffffffffffffffffffffffffffffffff XMM01=30306234386136303638616663356134 XMM02=38303062343861363036386166633561 XMM03=2f6c616e72756f6a2f676f6c2f6e7572 XMM04=d8f928da5fab84ed0000000000110048 XMM05=d3fdd5f48436fbd700000000000aead0 XMM06=c4abc45bb8f7227200000000000ae988 XMM07=00000000000000000000000000000000 XMM08=44495f474f4c5359530069253d595449 XMM09=00000000000000000000000000000000 XMM10=00000000000000000020000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000000000034 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507f85 RDI=ffffffff87f2dc00 RBP=ffffffff87f2dbc0 RSP=ffff888016eef5f0 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000034 R11=0000000000000001 R12=0000000000000034 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 0000555555ea2400 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=000055a396712b30 CR3=0000000016b6c000 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