Debian GNU/Linux 11 syzkaller ttyS0 syzkaller login: [ 35.354499] sshd (224) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:32477' (ECDSA) to the list of known hosts. 2023/05/16 22:07:34 fuzzer started 2023/05/16 22:07:34 dialing manager at localhost:35573 2023/05/16 22:07:34 checking machine... 2023/05/16 22:07:34 checking revisions... [ 36.642571] kmemleak: Automatic memory scanning thread ended 2023/05/16 22:07:34 testing simple program... [ 36.714495] cgroup: Unknown subsys name 'net' [ 36.807297] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 49.236981] audit: type=1400 audit(1684274867.577:6): 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 [ 50.393195] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 50.395906] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 50.397036] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 50.400411] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 50.401824] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 50.403730] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 50.794938] ------------[ cut here ]------------ [ 50.796117] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 50.798408] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 50.799691] Modules linked in: [ 50.800104] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 50.805194] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 50.806209] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 50.806851] 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 [ 50.809057] RSP: 0018:ffff888008f0fc00 EFLAGS: 00010282 [ 50.809741] RAX: 0000000000000000 RBX: ffff88800c50ac40 RCX: 0000000000000000 [ 50.810633] RDX: ffff888016563680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 50.811525] RBP: ffff88800c50ac54 R08: 0000000000000001 R09: 0000000000000000 [ 50.812419] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 50.813301] R13: ffffffff84e223a0 R14: ffff88800c50ac48 R15: ffffffff84d73340 [ 50.814190] FS: 0000555557335400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 50.815155] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.815910] CR2: 00007f26a2aaf6f4 CR3: 000000001eb0c000 CR4: 0000000000350ee0 [ 50.816799] Call Trace: [ 50.817122] [ 50.817463] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 50.818249] ipv4_frags_init_net+0x269/0x440 [ 50.818806] ops_init+0xbb/0x6b0 [ 50.819285] setup_net+0x3d9/0x990 [ 50.819741] ? down_read_killable+0x1d7/0x4e0 [ 50.820338] ? __pfx_setup_net+0x10/0x10 [ 50.820842] ? copy_net_ns+0x17c/0x770 [ 50.821379] copy_net_ns+0x321/0x770 [ 50.821860] create_new_namespaces+0x3f6/0xb30 [ 50.822473] unshare_nsproxy_namespaces+0xc1/0x200 [ 50.823084] ksys_unshare+0x44d/0x8e0 [ 50.823606] ? __pfx_ksys_unshare+0x10/0x10 [ 50.824152] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 50.824894] __x64_sys_unshare+0x31/0x40 [ 50.825434] do_syscall_64+0x3f/0x90 [ 50.825906] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 50.826578] RIP: 0033:0x7f8f6ba0d0d7 [ 50.827043] 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 [ 50.829228] RSP: 002b:00007fff5eed7128 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 50.830150] RAX: ffffffffffffffda RBX: 00007fff5eed7768 RCX: 00007f8f6ba0d0d7 [ 50.831043] RDX: 00007f8f6ba7741f RSI: 00007fff5eed70c0 RDI: 0000000040000000 [ 50.831933] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fff5eed6ed0 [ 50.832805] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f8f6bb1fbf0 [ 50.833683] R13: 00007fff5eed7200 R14: 0000000000000000 R15: 00000000000000f8 [ 50.834583] [ 50.834880] irq event stamp: 10155 [ 50.835345] hardirqs last enabled at (10167): [] __up_console_sem+0x78/0x80 [ 50.836412] hardirqs last disabled at (10178): [] __up_console_sem+0x5d/0x80 [ 50.837482] softirqs last enabled at (10088): [] irq_exit_rcu+0x93/0xc0 [ 50.838524] softirqs last disabled at (10083): [] irq_exit_rcu+0x93/0xc0 [ 50.839586] ---[ end trace 0000000000000000 ]--- [ 50.844630] ------------[ cut here ]------------ [ 50.845244] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 50.846874] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 50.847951] Modules linked in: [ 50.848383] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 50.849528] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 50.850545] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 50.851215] 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 [ 50.853391] RSP: 0018:ffff888008f0fc00 EFLAGS: 00010282 [ 50.854043] RAX: 0000000000000000 RBX: ffff88800d62aa40 RCX: 0000000000000000 [ 50.854925] RDX: ffff888016563680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 50.855816] RBP: ffff88800d62aa54 R08: 0000000000000001 R09: 0000000000000000 [ 50.856698] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 50.857588] R13: ffffffff84e223a0 R14: ffff88800d62aa48 R15: ffffffff84da62e0 [ 50.858488] FS: 0000555557335400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 50.859506] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.860246] CR2: 00007f26a2aaf6f4 CR3: 000000001eb0c000 CR4: 0000000000350ee0 [ 50.861102] Call Trace: [ 50.861453] [ 50.861754] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 50.862396] ipv6_frags_init_net+0x206/0x3c0 [ 50.862958] ops_init+0xbb/0x6b0 [ 50.863442] setup_net+0x3d9/0x990 [ 50.863895] ? down_read_killable+0x1d7/0x4e0 [ 50.864490] ? __pfx_setup_net+0x10/0x10 [ 50.864999] ? copy_net_ns+0x17c/0x770 [ 50.865528] copy_net_ns+0x321/0x770 [ 50.866011] create_new_namespaces+0x3f6/0xb30 [ 50.866622] unshare_nsproxy_namespaces+0xc1/0x200 [ 50.867295] ksys_unshare+0x44d/0x8e0 [ 50.867781] ? __pfx_ksys_unshare+0x10/0x10 [ 50.868360] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 50.869076] __x64_sys_unshare+0x31/0x40 [ 50.869623] do_syscall_64+0x3f/0x90 [ 50.870103] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 50.870770] RIP: 0033:0x7f8f6ba0d0d7 [ 50.871275] 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 [ 50.873432] RSP: 002b:00007fff5eed7128 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 50.874381] RAX: ffffffffffffffda RBX: 00007fff5eed7768 RCX: 00007f8f6ba0d0d7 [ 50.875297] RDX: 00007f8f6ba7741f RSI: 00007fff5eed70c0 RDI: 0000000040000000 [ 50.876151] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fff5eed6ed0 [ 50.877038] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f8f6bb1fbf0 [ 50.877922] R13: 00007fff5eed7200 R14: 0000000000000000 R15: 00000000000000f8 [ 50.878826] [ 50.879123] irq event stamp: 11795 [ 50.879589] hardirqs last enabled at (11807): [] __up_console_sem+0x78/0x80 [ 50.880646] hardirqs last disabled at (11818): [] __up_console_sem+0x5d/0x80 [ 50.881709] softirqs last enabled at (11168): [] irq_exit_rcu+0x93/0xc0 [ 50.882737] softirqs last disabled at (11119): [] irq_exit_rcu+0x93/0xc0 [ 50.883791] ---[ end trace 0000000000000000 ]--- [ 50.885138] ------------[ cut here ]------------ [ 50.885752] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 50.887717] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 50.888777] Modules linked in: [ 50.889227] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 50.890371] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 50.891415] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 50.892054] 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 [ 50.894221] RSP: 0018:ffff888008f0fbf0 EFLAGS: 00010286 [ 50.894869] RAX: 0000000000000000 RBX: ffff88801652b040 RCX: 0000000000000000 [ 50.895774] RDX: ffff888016563680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 50.896664] RBP: ffff88801652b054 R08: 0000000000000001 R09: 0000000000000000 [ 50.897554] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 50.898431] R13: ffffffff84e223a0 R14: ffff88801652b048 R15: ffffffff84daf020 [ 50.899357] FS: 0000555557335400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 50.900357] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.901062] CR2: 00007f26a2aaf6f4 CR3: 000000001eb0c000 CR4: 0000000000350ee0 [ 50.901954] Call Trace: [ 50.902309] [ 50.902611] nf_ct_net_init+0x224/0x3d0 [ 50.903125] ? __pfx_nf_ct_net_init+0x10/0x10 [ 50.903732] ops_init+0xbb/0x6b0 [ 50.904208] setup_net+0x3d9/0x990 [ 50.904660] ? down_read_killable+0x1d7/0x4e0 [ 50.905246] ? __pfx_setup_net+0x10/0x10 [ 50.905753] ? copy_net_ns+0x17c/0x770 [ 50.906291] copy_net_ns+0x321/0x770 [ 50.906770] create_new_namespaces+0x3f6/0xb30 [ 50.907389] unshare_nsproxy_namespaces+0xc1/0x200 [ 50.908007] ksys_unshare+0x44d/0x8e0 [ 50.908524] ? __pfx_ksys_unshare+0x10/0x10 [ 50.909073] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 50.909806] __x64_sys_unshare+0x31/0x40 [ 50.910352] do_syscall_64+0x3f/0x90 [ 50.910829] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 50.911511] RIP: 0033:0x7f8f6ba0d0d7 [ 50.911975] 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 [ 50.914147] RSP: 002b:00007fff5eed7128 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 50.915085] RAX: ffffffffffffffda RBX: 00007fff5eed7768 RCX: 00007f8f6ba0d0d7 [ 50.915985] RDX: 00007f8f6ba7741f RSI: 00007fff5eed70c0 RDI: 0000000040000000 [ 50.916871] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fff5eed6ed0 [ 50.917801] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f8f6bb1fbf0 [ 50.918700] R13: 00007fff5eed7200 R14: 0000000000000000 R15: 00000000000000f8 [ 50.919622] [ 50.919923] irq event stamp: 12613 [ 50.920384] hardirqs last enabled at (12625): [] __up_console_sem+0x78/0x80 [ 50.921451] hardirqs last disabled at (12636): [] __up_console_sem+0x5d/0x80 [ 50.922519] softirqs last enabled at (12188): [] irq_exit_rcu+0x93/0xc0 [ 50.923557] softirqs last disabled at (12183): [] irq_exit_rcu+0x93/0xc0 [ 50.924580] ---[ end trace 0000000000000000 ]--- executing program [ 52.417728] Bluetooth: hci0: command 0x0409 tx timeout [ 54.465639] Bluetooth: hci0: command 0x041b tx timeout executing program [ 56.513245] Bluetooth: hci0: command 0x040f tx timeout executing program [ 58.561257] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 22:07:41 Registers: info registers vcpu 0 RAX=000000000001ba8f RBX=0000000000000000 RCX=ffffffff844c4a0e RDX=0000000000000000 RSI=0000000000000000 RDI=ffffffff81288625 RBP=dffffc0000000000 RSP=ffffffff85407e10 R8 =0000000000000001 R9 =ffffed100d9c69f8 R10=ffff88806ce34fc3 R11=0000000000000001 R12=ffffffff85d34a10 R13=1ffffffff0a80fc7 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 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=00007fc7dabfb8a8 CR3=000000000e7a6000 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=2039343a37303a32322036312079614d XMM01=5d3731313639372e30352020205b203a XMM02=657268745f776f6c5f6761726670692f XMM03=6c61626f6c67206c656e72656b206f74 XMM04=6f6c5f676172667069203a6174616420 XMM05=2073746e696f702061746164203a6873 XMM06=347670692f74656e206c746373797320 XMM07=6c656e72656b2072656c6c616b7a7973 XMM08=7475636578652d7a7973223d6d6d6f63 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000000000035 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507685 RDI=ffffffff87f27c00 RBP=ffffffff87f27bc0 RSP=ffff888008f0f5f0 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000035 R11=0000000000000001 R12=0000000000000035 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 0000555557335400 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=00007f26a2aaf6f4 CR3=000000001eb0c000 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