Debian GNU/Linux 11 syzkaller ttyS0 syzkaller login: [ 37.164910] sshd (217) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:2157' (ECDSA) to the list of known hosts. 2023/05/17 03:54:10 fuzzer started 2023/05/17 03:54:10 dialing manager at localhost:35573 2023/05/17 03:54:10 checking machine... 2023/05/17 03:54:10 checking revisions... [ 39.253630] kmemleak: Automatic memory scanning thread ended 2023/05/17 03:54:11 testing simple program... [ 39.331629] cgroup: Unknown subsys name 'net' [ 39.405162] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 52.605861] audit: type=1400 audit(1684295664.432:6): 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 [ 53.782452] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 53.784167] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 53.785458] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 53.788618] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 53.790453] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 53.791631] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 executing program [ 54.174694] ------------[ cut here ]------------ [ 54.175353] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 54.177007] WARNING: CPU: 0 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 54.178190] Modules linked in: [ 54.178599] CPU: 0 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 54.183394] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 54.184597] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 54.185411] 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 20 24 e2 84 e8 6a cd d5 fc <0f> 0b 48 89 e8 48 c1 e8 03 42 0f b6 14 20 48 89 e8 83 e0 07 83 c0 [ 54.188013] RSP: 0018:ffff88801bf9fc00 EFLAGS: 00010282 [ 54.188834] RAX: 0000000000000000 RBX: ffff88800db13840 RCX: 0000000000000000 [ 54.189951] RDX: ffff8880132f0000 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 54.191086] RBP: ffff88800db13854 R08: 0000000000000001 R09: 0000000000000000 [ 54.192199] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 54.193301] R13: ffffffff84e223a0 R14: ffff88800db13848 R15: ffffffff84d73340 [ 54.194346] FS: 00005555555b3400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 54.195358] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.196112] CR2: 00007f63752b66f4 CR3: 000000001cbae000 CR4: 0000000000350ef0 [ 54.197011] Call Trace: [ 54.197342] [ 54.197650] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 54.198334] ipv4_frags_init_net+0x269/0x440 [ 54.198907] ops_init+0xbb/0x6b0 [ 54.199397] setup_net+0x3d9/0x990 [ 54.199856] ? down_read_killable+0x1d7/0x4e0 [ 54.200466] ? __pfx_setup_net+0x10/0x10 [ 54.200997] ? copy_net_ns+0x17c/0x770 [ 54.201503] copy_net_ns+0x321/0x770 [ 54.202028] create_new_namespaces+0x3f6/0xb30 [ 54.202625] unshare_nsproxy_namespaces+0xc1/0x200 [ 54.203277] ksys_unshare+0x44d/0x8e0 [ 54.203777] ? __pfx_ksys_unshare+0x10/0x10 [ 54.204364] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 54.205117] __x64_sys_unshare+0x31/0x40 [ 54.205642] do_syscall_64+0x3f/0x90 [ 54.206164] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 54.206805] RIP: 0033:0x7f4c383b20d7 [ 54.207307] 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 [ 54.209538] RSP: 002b:00007fff3de0dc68 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 54.210501] RAX: ffffffffffffffda RBX: 00007fff3de0e2a8 RCX: 00007f4c383b20d7 [ 54.211406] RDX: 00007f4c3841c41f RSI: 00007fff3de0dc00 RDI: 0000000040000000 [ 54.212297] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fff3de0da10 [ 54.213193] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f4c384c4bf0 [ 54.214128] R13: 00007fff3de0dd40 R14: 0000000000000000 R15: 00000000000000f8 [ 54.215054] [ 54.215360] irq event stamp: 7593 [ 54.215789] hardirqs last enabled at (7603): [] __up_console_sem+0x78/0x80 [ 54.216861] hardirqs last disabled at (7614): [] __up_console_sem+0x5d/0x80 [ 54.217941] softirqs last enabled at (7310): [] irq_exit_rcu+0x93/0xc0 [ 54.218973] softirqs last disabled at (7301): [] irq_exit_rcu+0x93/0xc0 [ 54.220072] ---[ end trace 0000000000000000 ]--- [ 54.225458] ------------[ cut here ]------------ [ 54.226092] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 54.227720] WARNING: CPU: 0 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 54.228799] Modules linked in: [ 54.229239] CPU: 0 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 54.230403] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 54.231436] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 54.232110] 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 20 24 e2 84 e8 6a cd d5 fc <0f> 0b 48 89 e8 48 c1 e8 03 42 0f b6 14 20 48 89 e8 83 e0 07 83 c0 [ 54.234325] RSP: 0018:ffff88801bf9fc00 EFLAGS: 00010282 [ 54.235008] RAX: 0000000000000000 RBX: ffff88800d649840 RCX: 0000000000000000 [ 54.235870] RDX: ffff8880132f0000 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 54.236762] RBP: ffff88800d649854 R08: 0000000000000001 R09: 0000000000000000 [ 54.237672] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 54.238575] R13: ffffffff84e223a0 R14: ffff88800d649848 R15: ffffffff84da62e0 [ 54.239458] FS: 00005555555b3400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 54.240438] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.241166] CR2: 00007f63752b66f4 CR3: 000000001cbae000 CR4: 0000000000350ef0 [ 54.242071] Call Trace: [ 54.242391] [ 54.242687] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 54.243319] ipv6_frags_init_net+0x206/0x3c0 [ 54.243873] ops_init+0xbb/0x6b0 [ 54.244346] setup_net+0x3d9/0x990 [ 54.244800] ? down_read_killable+0x1d7/0x4e0 [ 54.245392] ? __pfx_setup_net+0x10/0x10 [ 54.245904] ? copy_net_ns+0x17c/0x770 [ 54.246434] copy_net_ns+0x321/0x770 [ 54.246911] create_new_namespaces+0x3f6/0xb30 [ 54.247515] unshare_nsproxy_namespaces+0xc1/0x200 [ 54.248155] ksys_unshare+0x44d/0x8e0 [ 54.248640] ? __pfx_ksys_unshare+0x10/0x10 [ 54.249206] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 54.249922] __x64_sys_unshare+0x31/0x40 [ 54.250469] do_syscall_64+0x3f/0x90 [ 54.250939] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 54.251597] RIP: 0033:0x7f4c383b20d7 [ 54.252087] 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 [ 54.254248] RSP: 002b:00007fff3de0dc68 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 54.255192] RAX: ffffffffffffffda RBX: 00007fff3de0e2a8 RCX: 00007f4c383b20d7 [ 54.256062] RDX: 00007f4c3841c41f RSI: 00007fff3de0dc00 RDI: 0000000040000000 [ 54.256903] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fff3de0da10 [ 54.257784] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f4c384c4bf0 [ 54.258663] R13: 00007fff3de0dd40 R14: 0000000000000000 R15: 00000000000000f8 [ 54.259565] [ 54.259863] irq event stamp: 9567 [ 54.260317] hardirqs last enabled at (9579): [] __up_console_sem+0x78/0x80 [ 54.261425] hardirqs last disabled at (9596): [] __up_console_sem+0x5d/0x80 [ 54.262526] softirqs last enabled at (9592): [] irq_exit_rcu+0x93/0xc0 [ 54.263553] softirqs last disabled at (9587): [] irq_exit_rcu+0x93/0xc0 [ 54.264582] ---[ end trace 0000000000000000 ]--- [ 54.265920] ------------[ cut here ]------------ [ 54.266553] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 54.268514] WARNING: CPU: 0 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 54.269572] Modules linked in: [ 54.270042] CPU: 0 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 54.271232] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 54.272280] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 54.272944] 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 20 24 e2 84 e8 6a cd d5 fc <0f> 0b 48 89 e8 48 c1 e8 03 42 0f b6 14 20 48 89 e8 83 e0 07 83 c0 [ 54.275200] RSP: 0018:ffff88801bf9fbf0 EFLAGS: 00010286 [ 54.275869] RAX: 0000000000000000 RBX: ffff88800d649040 RCX: 0000000000000000 [ 54.276779] RDX: ffff8880132f0000 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 54.277707] RBP: ffff88800d649054 R08: 0000000000000001 R09: 0000000000000000 [ 54.278630] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 54.279549] R13: ffffffff84e223a0 R14: ffff88800d649048 R15: ffffffff84daf020 [ 54.280481] FS: 00005555555b3400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 54.281492] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.282273] CR2: 00007f63752b66f4 CR3: 000000001cbae000 CR4: 0000000000350ef0 [ 54.283176] Call Trace: [ 54.283504] [ 54.283810] nf_ct_net_init+0x224/0x3d0 [ 54.284374] ? __pfx_nf_ct_net_init+0x10/0x10 [ 54.284957] ops_init+0xbb/0x6b0 [ 54.285436] setup_net+0x3d9/0x990 [ 54.285911] ? down_read_killable+0x1d7/0x4e0 [ 54.286527] ? __pfx_setup_net+0x10/0x10 [ 54.287072] ? copy_net_ns+0x17c/0x770 [ 54.287585] copy_net_ns+0x321/0x770 [ 54.288093] create_new_namespaces+0x3f6/0xb30 [ 54.288687] unshare_nsproxy_namespaces+0xc1/0x200 [ 54.289334] ksys_unshare+0x44d/0x8e0 [ 54.289852] ? __pfx_ksys_unshare+0x10/0x10 [ 54.290442] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 54.291193] __x64_sys_unshare+0x31/0x40 [ 54.291720] do_syscall_64+0x3f/0x90 [ 54.292237] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 54.292883] RIP: 0033:0x7f4c383b20d7 [ 54.293381] 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 [ 54.295592] RSP: 002b:00007fff3de0dc68 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 54.296559] RAX: ffffffffffffffda RBX: 00007fff3de0e2a8 RCX: 00007f4c383b20d7 [ 54.297466] RDX: 00007f4c3841c41f RSI: 00007fff3de0dc00 RDI: 0000000040000000 [ 54.298380] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fff3de0da10 [ 54.299291] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f4c384c4bf0 [ 54.300191] R13: 00007fff3de0dd40 R14: 0000000000000000 R15: 00000000000000f8 [ 54.301136] [ 54.301442] irq event stamp: 10429 [ 54.301906] hardirqs last enabled at (10439): [] __up_console_sem+0x78/0x80 [ 54.303004] hardirqs last disabled at (10452): [] __up_console_sem+0x5d/0x80 [ 54.304071] softirqs last enabled at (10336): [] irq_exit_rcu+0x93/0xc0 [ 54.305128] softirqs last disabled at (10331): [] irq_exit_rcu+0x93/0xc0 [ 54.306228] ---[ end trace 0000000000000000 ]--- [ 55.862414] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 57.909098] Bluetooth: hci0: command 0x041b tx timeout [ 59.957106] Bluetooth: hci0: command 0x040f tx timeout executing program [ 62.005057] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 03:54:23 Registers: info registers vcpu 0 RAX=0000000000000034 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507685 RDI=ffffffff87f27c00 RBP=ffffffff87f27bc0 RSP=ffff88801bf9f5f0 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000034 R11=0000000000000001 R12=0000000000000034 R13=ffffffff87f27bc0 R14=0000000000000010 R15=ffffffff82507670 RIP=ffffffff825076dd 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 00005555555b3400 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=00007f63752b66f4 CR3=000000001cbae000 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=000000000003bc37 RBX=0000000000000001 RCX=ffffffff844c4a0e RDX=0000000000000000 RSI=0000000000000000 RDI=ffffffff81288625 RBP=dffffc0000000000 RSP=ffff888008dcfe68 R8 =0000000000000001 R9 =ffffed100d9e69f8 R10=ffff88806cf34fc3 R11=0000000000000001 R12=ffffffff85d34a10 R13=1ffff110011b9fd2 R14=0000000000000000 R15=0000000000000000 RIP=ffffffff844c599f 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=00007f8a92cc7db0 CR3=0000000019c44000 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=2036323a34353a33302037312079614d XMM01=5d3730303737312e34352020205b203a XMM02=74656e20746120383532203a44495020 XMM03=735f74656e5f72657473696765722035 XMM04=7379735f74656e5f7265747369676572 XMM05=732f74656e20746120383532203a4449 XMM06=57205d3730303737312e34352020205b XMM07=79732036323a34353a33302037312079 XMM08=7475636578652d7a7973223d6d6d6f63 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000