syzkaller login: [ 35.657430] sshd (219) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:21046' (ECDSA) to the list of known hosts. 2023/05/16 23:49:50 fuzzer started 2023/05/16 23:49:50 dialing manager at localhost:35573 2023/05/16 23:49:50 checking machine... 2023/05/16 23:49:50 checking revisions... [ 37.545426] kmemleak: Automatic memory scanning thread ended 2023/05/16 23:49:51 testing simple program... [ 37.614074] cgroup: Unknown subsys name 'net' [ 37.690973] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 50.563905] audit: type=1400 audit(1684281004.114:6): 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 [ 51.682890] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 51.684471] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 51.686357] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 51.690872] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 51.692481] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 51.693618] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 52.058288] ------------[ cut here ]------------ [ 52.059095] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 52.061490] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 52.063012] Modules linked in: [ 52.063502] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 52.068369] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 52.069525] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 52.070251] 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 [ 52.072464] RSP: 0018:ffff88801f307c00 EFLAGS: 00010282 [ 52.073162] RAX: 0000000000000000 RBX: ffff8880101ef840 RCX: 0000000000000000 [ 52.074083] RDX: ffff88801f2f8000 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 52.074979] RBP: ffff8880101ef854 R08: 0000000000000001 R09: 0000000000000000 [ 52.075869] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 52.076754] R13: ffffffff84e223a0 R14: ffff8880101ef848 R15: ffffffff84d73340 [ 52.077635] FS: 0000555556b99400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 52.078697] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.079407] CR2: 00007fffae81a000 CR3: 000000000c6a4000 CR4: 0000000000350ef0 [ 52.080301] Call Trace: [ 52.080629] [ 52.080960] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 52.081598] ipv4_frags_init_net+0x269/0x440 [ 52.082181] ops_init+0xbb/0x6b0 [ 52.082642] setup_net+0x3d9/0x990 [ 52.083140] ? down_read_killable+0x1d7/0x4e0 [ 52.083739] ? __pfx_setup_net+0x10/0x10 [ 52.084242] ? copy_net_ns+0x17c/0x770 [ 52.084775] copy_net_ns+0x321/0x770 [ 52.085251] create_new_namespaces+0x3f6/0xb30 [ 52.085884] unshare_nsproxy_namespaces+0xc1/0x200 [ 52.086522] ksys_unshare+0x44d/0x8e0 [ 52.087052] ? __pfx_ksys_unshare+0x10/0x10 [ 52.087606] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 52.088343] __x64_sys_unshare+0x31/0x40 [ 52.088900] do_syscall_64+0x3f/0x90 [ 52.089396] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 52.090087] RIP: 0033:0x7f129246d0d7 [ 52.090576] 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 [ 52.092794] RSP: 002b:00007ffef03dd118 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 52.093764] RAX: ffffffffffffffda RBX: 00007ffef03dd758 RCX: 00007f129246d0d7 [ 52.094617] RDX: 00007f12924d741f RSI: 00007ffef03dd0b0 RDI: 0000000040000000 [ 52.095527] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffef03dcec0 [ 52.096442] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f129257fbf0 [ 52.097339] R13: 00007ffef03dd1f0 R14: 0000000000000000 R15: 00000000000000f8 [ 52.098282] [ 52.098586] irq event stamp: 8649 [ 52.099056] hardirqs last enabled at (8661): [] __up_console_sem+0x78/0x80 [ 52.100139] hardirqs last disabled at (8672): [] __up_console_sem+0x5d/0x80 [ 52.101213] softirqs last enabled at (8238): [] irq_exit_rcu+0x93/0xc0 [ 52.102238] softirqs last disabled at (8229): [] irq_exit_rcu+0x93/0xc0 [ 52.103271] ---[ end trace 0000000000000000 ]--- [ 52.108824] ------------[ cut here ]------------ [ 52.109390] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 52.110890] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 52.111841] Modules linked in: [ 52.112197] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 52.113195] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 52.114075] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 52.114638] 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 [ 52.116571] RSP: 0018:ffff88801f307c00 EFLAGS: 00010282 [ 52.117176] RAX: 0000000000000000 RBX: ffff888013dd4440 RCX: 0000000000000000 [ 52.117978] RDX: ffff88801f2f8000 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 52.118757] RBP: ffff888013dd4454 R08: 0000000000000001 R09: 0000000000000000 [ 52.119494] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 52.120277] R13: ffffffff84e223a0 R14: ffff888013dd4448 R15: ffffffff84da62e0 [ 52.121046] FS: 0000555556b99400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 52.121925] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.122542] CR2: 00007f108853c9b0 CR3: 000000000c6a4000 CR4: 0000000000350ee0 [ 52.123316] Call Trace: [ 52.123609] [ 52.123908] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 52.124441] ipv6_frags_init_net+0x206/0x3c0 [ 52.124949] ops_init+0xbb/0x6b0 [ 52.125330] setup_net+0x3d9/0x990 [ 52.125775] ? down_read_killable+0x1d7/0x4e0 [ 52.126278] ? __pfx_setup_net+0x10/0x10 [ 52.126743] ? copy_net_ns+0x17c/0x770 [ 52.127183] copy_net_ns+0x321/0x770 [ 52.127595] create_new_namespaces+0x3f6/0xb30 [ 52.128141] unshare_nsproxy_namespaces+0xc1/0x200 [ 52.128708] ksys_unshare+0x44d/0x8e0 [ 52.129127] ? __pfx_ksys_unshare+0x10/0x10 [ 52.129602] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 52.130250] __x64_sys_unshare+0x31/0x40 [ 52.130728] do_syscall_64+0x3f/0x90 [ 52.131139] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 52.131719] RIP: 0033:0x7f129246d0d7 [ 52.132123] 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 [ 52.134031] RSP: 002b:00007ffef03dd118 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 52.134860] RAX: ffffffffffffffda RBX: 00007ffef03dd758 RCX: 00007f129246d0d7 [ 52.135601] RDX: 00007f12924d741f RSI: 00007ffef03dd0b0 RDI: 0000000040000000 [ 52.136383] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffef03dcec0 [ 52.137158] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f129257fbf0 [ 52.137972] R13: 00007ffef03dd1f0 R14: 0000000000000000 R15: 00000000000000f8 [ 52.138769] [ 52.139029] irq event stamp: 10755 [ 52.139408] hardirqs last enabled at (10765): [] __up_console_sem+0x78/0x80 [ 52.140344] hardirqs last disabled at (10776): [] __up_console_sem+0x5d/0x80 [ 52.141277] softirqs last enabled at (10682): [] irq_exit_rcu+0x93/0xc0 [ 52.142246] softirqs last disabled at (10675): [] irq_exit_rcu+0x93/0xc0 [ 52.143231] ---[ end trace 0000000000000000 ]--- [ 52.144404] ------------[ cut here ]------------ [ 52.144958] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 52.147812] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 52.148827] Modules linked in: [ 52.149173] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 52.150280] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 52.151238] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 52.151916] 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 [ 52.153920] RSP: 0018:ffff88801f307bf0 EFLAGS: 00010286 [ 52.154485] RAX: 0000000000000000 RBX: ffff888013dd5240 RCX: 0000000000000000 [ 52.155400] RDX: ffff88801f2f8000 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 52.156288] RBP: ffff888013dd5254 R08: 0000000000000001 R09: 0000000000000000 [ 52.157167] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 52.158067] R13: ffffffff84e223a0 R14: ffff888013dd5248 R15: ffffffff84daf020 [ 52.158936] FS: 0000555556b99400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 52.159945] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.160553] CR2: 00007f108853c9b0 CR3: 000000000c6a4000 CR4: 0000000000350ee0 [ 52.161454] Call Trace: [ 52.161895] [ 52.162153] nf_ct_net_init+0x224/0x3d0 [ 52.162596] ? __pfx_nf_ct_net_init+0x10/0x10 [ 52.163234] ops_init+0xbb/0x6b0 [ 52.163620] setup_net+0x3d9/0x990 [ 52.164170] ? down_read_killable+0x1d7/0x4e0 [ 52.164651] ? __pfx_setup_net+0x10/0x10 [ 52.165255] ? copy_net_ns+0x17c/0x770 [ 52.165855] copy_net_ns+0x321/0x770 [ 52.166269] create_new_namespaces+0x3f6/0xb30 [ 52.166933] unshare_nsproxy_namespaces+0xc1/0x200 [ 52.167468] ksys_unshare+0x44d/0x8e0 [ 52.167998] ? __pfx_ksys_unshare+0x10/0x10 [ 52.168471] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 52.169238] __x64_sys_unshare+0x31/0x40 [ 52.169820] do_syscall_64+0x3f/0x90 [ 52.170235] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 52.170950] RIP: 0033:0x7f129246d0d7 [ 52.171347] 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 [ 52.173320] RSP: 002b:00007ffef03dd118 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 52.174307] RAX: ffffffffffffffda RBX: 00007ffef03dd758 RCX: 00007f129246d0d7 [ 52.175192] RDX: 00007f12924d741f RSI: 00007ffef03dd0b0 RDI: 0000000040000000 [ 52.176110] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffef03dcec0 [ 52.176975] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f129257fbf0 [ 52.177854] R13: 00007ffef03dd1f0 R14: 0000000000000000 R15: 00000000000000f8 [ 52.178611] [ 52.179012] irq event stamp: 14391 [ 52.179385] hardirqs last enabled at (14401): [] __up_console_sem+0x78/0x80 [ 52.180358] hardirqs last disabled at (14444): [] __up_console_sem+0x5d/0x80 [ 52.181332] softirqs last enabled at (14478): [] irq_exit_rcu+0x93/0xc0 [ 52.182240] softirqs last disabled at (14453): [] irq_exit_rcu+0x93/0xc0 [ 52.183131] ---[ end trace 0000000000000000 ]--- executing program [ 53.762184] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 55.809732] Bluetooth: hci0: command 0x041b tx timeout [ 57.856748] Bluetooth: hci0: command 0x040f tx timeout executing program [ 59.905946] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 23:50:04 Registers: info registers vcpu 0 RAX=0000000000000055 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507685 RDI=ffffffff87f27c00 RBP=ffffffff87f27bc0 RSP=ffff88801f3075f0 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000055 R11=0000000000000001 R12=0000000000000055 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 0000555556b99400 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=00007fffae81a000 CR3=000000000c6a4000 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=0000000000031c45 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=00007f10885a8c90 CR3=000000000ccaa000 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=2035303a30353a33322036312079614d XMM01=5d3539303935302e32352020205b203a 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