syzkaller login: [ 39.456824] sshd (218) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:59102' (ECDSA) to the list of known hosts. 2023/05/17 09:51:37 fuzzer started 2023/05/17 09:51:37 dialing manager at localhost:35573 2023/05/17 09:51:37 checking machine... 2023/05/17 09:51:37 checking revisions... [ 41.030785] kmemleak: Automatic memory scanning thread ended 2023/05/17 09:51:37 testing simple program... [ 41.087278] cgroup: Unknown subsys name 'net' [ 41.173768] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 53.648794] audit: type=1400 audit(1684317110.529:6): 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 [ 54.794787] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 54.795852] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 54.796723] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 54.798684] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 54.799706] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 54.801034] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 55.094013] ------------[ cut here ]------------ [ 55.094546] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 55.095670] WARNING: CPU: 1 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 55.096491] Modules linked in: [ 55.096777] CPU: 1 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 55.098138] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 55.100977] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 55.101594] 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 [ 55.103182] RSP: 0018:ffff888020097c00 EFLAGS: 00010282 [ 55.103730] RAX: 0000000000000000 RBX: ffff88800e144c40 RCX: 0000000000000000 [ 55.104511] RDX: ffff888015930000 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 55.105108] RBP: ffff88800e144c54 R08: 0000000000000001 R09: 0000000000000000 [ 55.105882] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 55.106590] R13: ffffffff84e223a0 R14: ffff88800e144c48 R15: ffffffff84d73340 [ 55.107325] FS: 000055555710d400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 55.107991] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.108694] CR2: 00007fcbdcb106f4 CR3: 00000000206a2000 CR4: 0000000000350ee0 [ 55.109345] Call Trace: [ 55.109579] [ 55.109780] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 55.110238] ipv4_frags_init_net+0x269/0x440 [ 55.110629] ops_init+0xbb/0x6b0 [ 55.110935] setup_net+0x3d9/0x990 [ 55.111299] ? down_read_killable+0x1d7/0x4e0 [ 55.111697] ? __pfx_setup_net+0x10/0x10 [ 55.112043] ? copy_net_ns+0x17c/0x770 [ 55.112478] copy_net_ns+0x321/0x770 [ 55.112806] create_new_namespaces+0x3f6/0xb30 [ 55.113252] unshare_nsproxy_namespaces+0xc1/0x200 [ 55.113705] ksys_unshare+0x44d/0x8e0 [ 55.114046] ? __pfx_ksys_unshare+0x10/0x10 [ 55.114463] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 55.114982] __x64_sys_unshare+0x31/0x40 [ 55.115408] do_syscall_64+0x3f/0x90 [ 55.115752] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 55.116237] RIP: 0033:0x7f0ab1e920d7 [ 55.116610] 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 [ 55.118181] RSP: 002b:00007fffe1a70308 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 55.118882] RAX: ffffffffffffffda RBX: 00007fffe1a70948 RCX: 00007f0ab1e920d7 [ 55.119539] RDX: 00007f0ab1efc41f RSI: 00007fffe1a702a0 RDI: 0000000040000000 [ 55.120161] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fffe1a700b0 [ 55.120857] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f0ab1fa4bf0 [ 55.121437] R13: 00007fffe1a703e0 R14: 0000000000000000 R15: 00000000000000f8 [ 55.122017] [ 55.122275] irq event stamp: 8039 [ 55.122580] hardirqs last enabled at (8049): [] __up_console_sem+0x78/0x80 [ 55.123337] hardirqs last disabled at (8060): [] __up_console_sem+0x5d/0x80 [ 55.124000] softirqs last enabled at (7732): [] irq_exit_rcu+0x93/0xc0 [ 55.124713] softirqs last disabled at (7721): [] irq_exit_rcu+0x93/0xc0 [ 55.125396] ---[ end trace 0000000000000000 ]--- [ 55.130775] ------------[ cut here ]------------ [ 55.131290] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 55.132490] WARNING: CPU: 1 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 55.133140] Modules linked in: [ 55.133442] CPU: 1 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 55.134155] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 55.134839] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 55.135295] 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 [ 55.136758] RSP: 0018:ffff888020097c00 EFLAGS: 00010282 [ 55.137169] RAX: 0000000000000000 RBX: ffff88800d79f840 RCX: 0000000000000000 [ 55.137738] RDX: ffff888015930000 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 55.138304] RBP: ffff88800d79f854 R08: 0000000000000001 R09: 0000000000000000 [ 55.138876] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 55.139461] R13: ffffffff84e223a0 R14: ffff88800d79f848 R15: ffffffff84da62e0 [ 55.139992] FS: 000055555710d400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 55.140678] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.141124] CR2: 00007fcbdcb106f4 CR3: 00000000206a2000 CR4: 0000000000350ee0 [ 55.141708] Call Trace: [ 55.141925] [ 55.142128] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 55.142554] ipv6_frags_init_net+0x206/0x3c0 [ 55.142913] ops_init+0xbb/0x6b0 [ 55.143234] setup_net+0x3d9/0x990 [ 55.143536] ? down_read_killable+0x1d7/0x4e0 [ 55.143893] ? __pfx_setup_net+0x10/0x10 [ 55.144250] ? copy_net_ns+0x17c/0x770 [ 55.145902] copy_net_ns+0x321/0x770 [ 55.146302] create_new_namespaces+0x3f6/0xb30 [ 55.146719] unshare_nsproxy_namespaces+0xc1/0x200 [ 55.147156] ksys_unshare+0x44d/0x8e0 [ 55.147542] ? __pfx_ksys_unshare+0x10/0x10 [ 55.147922] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 55.148509] __x64_sys_unshare+0x31/0x40 [ 55.148859] do_syscall_64+0x3f/0x90 [ 55.149227] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 55.149729] RIP: 0033:0x7f0ab1e920d7 [ 55.150047] 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 [ 55.151601] RSP: 002b:00007fffe1a70308 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 55.152296] RAX: ffffffffffffffda RBX: 00007fffe1a70948 RCX: 00007f0ab1e920d7 [ 55.152919] RDX: 00007f0ab1efc41f RSI: 00007fffe1a702a0 RDI: 0000000040000000 [ 55.153548] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fffe1a700b0 [ 55.154174] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f0ab1fa4bf0 [ 55.154814] R13: 00007fffe1a703e0 R14: 0000000000000000 R15: 00000000000000f8 [ 55.155437] [ 55.155659] irq event stamp: 10039 [ 55.155969] hardirqs last enabled at (10049): [] __up_console_sem+0x78/0x80 [ 55.156825] hardirqs last disabled at (10060): [] __up_console_sem+0x5d/0x80 [ 55.157593] softirqs last enabled at (9556): [] irq_exit_rcu+0x93/0xc0 [ 55.158295] softirqs last disabled at (10081): [] irq_exit_rcu+0x93/0xc0 [ 55.158976] ---[ end trace 0000000000000000 ]--- [ 55.160112] ------------[ cut here ]------------ [ 55.160650] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 55.162052] WARNING: CPU: 1 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 55.162763] Modules linked in: [ 55.163025] CPU: 1 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 55.163793] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 55.164546] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 55.165005] 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 [ 55.166586] RSP: 0018:ffff888020097bf0 EFLAGS: 00010286 [ 55.167056] RAX: 0000000000000000 RBX: ffff88800d79fe40 RCX: 0000000000000000 [ 55.167687] RDX: ffff888015930000 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 55.168345] RBP: ffff88800d79fe54 R08: 0000000000000001 R09: 0000000000000000 [ 55.168921] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 55.169518] R13: ffffffff84e223a0 R14: ffff88800d79fe48 R15: ffffffff84daf020 [ 55.170114] FS: 000055555710d400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 55.170815] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.171290] CR2: 00007fcbdcb106f4 CR3: 00000000206a2000 CR4: 0000000000350ee0 [ 55.171871] Call Trace: [ 55.172094] [ 55.172357] nf_ct_net_init+0x224/0x3d0 [ 55.172719] ? __pfx_nf_ct_net_init+0x10/0x10 [ 55.173102] ops_init+0xbb/0x6b0 [ 55.173476] setup_net+0x3d9/0x990 [ 55.173781] ? down_read_killable+0x1d7/0x4e0 [ 55.174139] ? __pfx_setup_net+0x10/0x10 [ 55.174534] ? copy_net_ns+0x17c/0x770 [ 55.174867] copy_net_ns+0x321/0x770 [ 55.175214] create_new_namespaces+0x3f6/0xb30 [ 55.175611] unshare_nsproxy_namespaces+0xc1/0x200 [ 55.176016] ksys_unshare+0x44d/0x8e0 [ 55.176418] ? __pfx_ksys_unshare+0x10/0x10 [ 55.176767] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 55.177256] __x64_sys_unshare+0x31/0x40 [ 55.177602] do_syscall_64+0x3f/0x90 [ 55.177919] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 55.178384] RIP: 0033:0x7f0ab1e920d7 [ 55.178699] 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 [ 55.180164] RSP: 002b:00007fffe1a70308 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 55.180856] RAX: ffffffffffffffda RBX: 00007fffe1a70948 RCX: 00007f0ab1e920d7 [ 55.181446] RDX: 00007f0ab1efc41f RSI: 00007fffe1a702a0 RDI: 0000000040000000 [ 55.182017] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fffe1a700b0 [ 55.182638] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f0ab1fa4bf0 [ 55.183216] R13: 00007fffe1a703e0 R14: 0000000000000000 R15: 00000000000000f8 [ 55.183836] [ 55.184034] irq event stamp: 10789 [ 55.184386] hardirqs last enabled at (10801): [] __up_console_sem+0x78/0x80 [ 55.185101] hardirqs last disabled at (10810): [] __up_console_sem+0x5d/0x80 [ 55.185829] softirqs last enabled at (10086): [] irq_exit_rcu+0x93/0xc0 [ 55.186533] softirqs last disabled at (10081): [] irq_exit_rcu+0x93/0xc0 [ 55.187212] ---[ end trace 0000000000000000 ]--- executing program [ 56.821948] Bluetooth: hci0: command 0x0409 tx timeout [ 58.869962] Bluetooth: hci0: command 0x041b tx timeout executing program [ 60.918670] Bluetooth: hci0: command 0x040f tx timeout executing program [ 62.965321] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 09:51:47 Registers: info registers vcpu 0 RAX=0000000000000000 RBX=0000000000000000 RCX=ffffffff81379023 RDX=0000000000000000 RSI=0000000000000001 RDI=ffff88800e190000 RBP=ffff88800e190000 RSP=ffff888016dd77d8 R8 =0000000000000000 R9 =fffffbfff0ba6942 R10=ffffffff85d35b70 R11=0000000000000001 R12=ffff88806ce3a491 R13=ffff88806ce3a480 R14=ffff88800e190000 R15=ffff888016dd7a58 RIP=ffffffff81375740 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 00007fbb34e4b700 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=00007fb4b99088b0 CR3=000000000bebc000 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=0000000000000000000000000000ffff XMM02=0000000000000000000000000000ffff XMM03=435020647261646e61745320554d4551 XMM04=636f72703d7373616c63742030733a74 XMM05=3a755f6d65747379733d747865746e6f XMM06=5f6d65747379733a755f6d6574737973 XMM07=00000000000000000000000000000000 XMM08=333734352e30332020205b3e343c0000 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000000000064 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507685 RDI=ffffffff87f27c00 RBP=ffffffff87f27bc0 RSP=ffff888020097618 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000064 R11=0000000000000001 R12=0000000000000064 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 000055555710d400 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=00007fcbdcb106f4 CR3=00000000206a2000 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