syzkaller login: [ 55.781021] sshd (210) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:48495' (ECDSA) to the list of known hosts. 2023/05/17 11:15:52 fuzzer started 2023/05/17 11:15:53 dialing manager at localhost:44319 2023/05/17 11:15:53 checking machine... 2023/05/17 11:15:53 checking revisions... [ 60.585882] kmemleak: Automatic memory scanning thread ended 2023/05/17 11:15:53 testing simple program... [ 60.649761] cgroup: Unknown subsys name 'net' [ 60.747445] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 72.567107] audit: type=1400 audit(1684322165.264:6): 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 [ 73.707562] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 73.710327] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 73.712208] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 73.716906] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 73.724590] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 73.726258] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 74.135371] ------------[ cut here ]------------ [ 74.136136] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 74.138256] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 74.139522] Modules linked in: [ 74.140011] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 74.145033] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 74.146253] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 74.147051] 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 [ 74.149628] RSP: 0018:ffff88801cdf7c00 EFLAGS: 00010282 [ 74.150457] RAX: 0000000000000000 RBX: ffff88800ef0a840 RCX: 0000000000000000 [ 74.151536] RDX: ffff88801a209b40 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 74.152630] RBP: ffff88800ef0a854 R08: 0000000000000001 R09: 0000000000000000 [ 74.153729] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 74.154805] R13: ffffffff84e23fe0 R14: ffff88800ef0a848 R15: ffffffff84d74dc0 [ 74.155870] FS: 0000555556998400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 74.157084] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.158017] CR2: 00007f84d7e886f4 CR3: 0000000019ee4000 CR4: 0000000000350ee0 [ 74.159089] Call Trace: [ 74.159521] [ 74.159883] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 74.160659] ipv4_frags_init_net+0x269/0x440 [ 74.161384] ops_init+0xbb/0x6b0 [ 74.161921] setup_net+0x3d9/0x990 [ 74.162511] ? down_read_killable+0x1d7/0x4e0 [ 74.163196] ? __pfx_setup_net+0x10/0x10 [ 74.163850] ? copy_net_ns+0x17c/0x770 [ 74.164491] copy_net_ns+0x321/0x770 [ 74.165071] create_new_namespaces+0x3f6/0xb30 [ 74.165832] unshare_nsproxy_namespaces+0xc1/0x200 [ 74.166611] ksys_unshare+0x44d/0x8e0 [ 74.167199] ? __pfx_ksys_unshare+0x10/0x10 [ 74.167898] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 74.168777] __x64_sys_unshare+0x31/0x40 [ 74.169442] do_syscall_64+0x3f/0x90 [ 74.170008] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 74.170805] RIP: 0033:0x7f14798b60d7 [ 74.171380] 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 [ 74.173998] RSP: 002b:00007ffc505bfae8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 74.175123] RAX: ffffffffffffffda RBX: 00007ffc505c0128 RCX: 00007f14798b60d7 [ 74.176177] RDX: 00007f147992041f RSI: 00007ffc505bfa80 RDI: 0000000040000000 [ 74.177238] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffc505bf890 [ 74.178298] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f14799c8bf0 [ 74.179370] R13: 00007ffc505bfbc0 R14: 0000000000000000 R15: 00000000000000f8 [ 74.180460] [ 74.180817] irq event stamp: 9161 [ 74.181336] hardirqs last enabled at (9171): [] __up_console_sem+0x78/0x80 [ 74.182635] hardirqs last disabled at (9184): [] __up_console_sem+0x5d/0x80 [ 74.183913] softirqs last enabled at (8386): [] netlink_insert+0x187/0x1820 [ 74.185210] softirqs last disabled at (8384): [] release_sock+0x1f/0x1b0 [ 74.186451] ---[ end trace 0000000000000000 ]--- [ 74.193251] ------------[ cut here ]------------ [ 74.194060] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 74.195934] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 74.197160] Modules linked in: [ 74.197680] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 74.198984] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 74.200129] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 74.200889] 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 [ 74.203392] RSP: 0018:ffff88801cdf7c00 EFLAGS: 00010282 [ 74.204154] RAX: 0000000000000000 RBX: ffff88800d714240 RCX: 0000000000000000 [ 74.205214] RDX: ffff88801a209b40 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 74.206276] RBP: ffff88800d714254 R08: 0000000000000001 R09: 0000000000000000 [ 74.207318] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 74.208375] R13: ffffffff84e23fe0 R14: ffff88800d714248 R15: ffffffff84da7d60 [ 74.209438] FS: 0000555556998400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 74.210622] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.211492] CR2: 00007f84d7e886f4 CR3: 0000000019ee4000 CR4: 0000000000350ee0 [ 74.212543] Call Trace: [ 74.212928] [ 74.213274] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 74.214057] ipv6_frags_init_net+0x206/0x3c0 [ 74.214741] ops_init+0xbb/0x6b0 [ 74.215265] setup_net+0x3d9/0x990 [ 74.215822] ? down_read_killable+0x1d7/0x4e0 [ 74.216526] ? __pfx_setup_net+0x10/0x10 [ 74.217117] ? copy_net_ns+0x17c/0x770 [ 74.217755] copy_net_ns+0x321/0x770 [ 74.218321] create_new_namespaces+0x3f6/0xb30 [ 74.219039] unshare_nsproxy_namespaces+0xc1/0x200 [ 74.219791] ksys_unshare+0x44d/0x8e0 [ 74.220394] ? __pfx_ksys_unshare+0x10/0x10 [ 74.221033] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 74.221908] __x64_sys_unshare+0x31/0x40 [ 74.222544] do_syscall_64+0x3f/0x90 [ 74.223106] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 74.223903] RIP: 0033:0x7f14798b60d7 [ 74.224473] 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 [ 74.227032] RSP: 002b:00007ffc505bfae8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 74.228123] RAX: ffffffffffffffda RBX: 00007ffc505c0128 RCX: 00007f14798b60d7 [ 74.229145] RDX: 00007f147992041f RSI: 00007ffc505bfa80 RDI: 0000000040000000 [ 74.230168] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffc505bf890 [ 74.231196] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f14799c8bf0 [ 74.232217] R13: 00007ffc505bfbc0 R14: 0000000000000000 R15: 00000000000000f8 [ 74.233260] [ 74.233638] irq event stamp: 11177 [ 74.234148] hardirqs last enabled at (11187): [] __up_console_sem+0x78/0x80 [ 74.235386] hardirqs last disabled at (11198): [] __up_console_sem+0x5d/0x80 [ 74.236619] softirqs last enabled at (10652): [] irq_exit_rcu+0x93/0xc0 [ 74.237846] softirqs last disabled at (10625): [] irq_exit_rcu+0x93/0xc0 [ 74.239052] ---[ end trace 0000000000000000 ]--- [ 74.240702] ------------[ cut here ]------------ [ 74.241419] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 74.243613] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 74.244807] Modules linked in: [ 74.245269] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 74.246618] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 74.247782] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 74.248558] 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 [ 74.251125] RSP: 0018:ffff88801cdf7bf0 EFLAGS: 00010286 [ 74.251908] RAX: 0000000000000000 RBX: ffff88800f389040 RCX: 0000000000000000 [ 74.252926] RDX: ffff88801a209b40 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 74.253979] RBP: ffff88800f389054 R08: 0000000000000001 R09: 0000000000000000 [ 74.255007] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 74.256031] R13: ffffffff84e23fe0 R14: ffff88800f389048 R15: ffffffff84db0aa0 [ 74.257041] FS: 0000555556998400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 74.258185] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.259017] CR2: 00007f84d7e886f4 CR3: 0000000019ee4000 CR4: 0000000000350ee0 [ 74.260024] Call Trace: [ 74.260423] [ 74.260749] nf_ct_net_init+0x224/0x3d0 [ 74.261328] ? __pfx_nf_ct_net_init+0x10/0x10 [ 74.261991] ops_init+0xbb/0x6b0 [ 74.262506] setup_net+0x3d9/0x990 [ 74.263003] ? down_read_killable+0x1d7/0x4e0 [ 74.263662] ? __pfx_setup_net+0x10/0x10 [ 74.264224] ? copy_net_ns+0x17c/0x770 [ 74.264811] copy_net_ns+0x321/0x770 [ 74.265386] create_new_namespaces+0x3f6/0xb30 [ 74.266028] unshare_nsproxy_namespaces+0xc1/0x200 [ 74.266733] ksys_unshare+0x44d/0x8e0 [ 74.267272] ? __pfx_ksys_unshare+0x10/0x10 [ 74.267899] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 74.268699] __x64_sys_unshare+0x31/0x40 [ 74.269250] do_syscall_64+0x3f/0x90 [ 74.269813] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 74.270543] RIP: 0033:0x7f14798b60d7 [ 74.271045] 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 [ 74.273413] RSP: 002b:00007ffc505bfae8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 74.274433] RAX: ffffffffffffffda RBX: 00007ffc505c0128 RCX: 00007f14798b60d7 [ 74.275395] RDX: 00007f147992041f RSI: 00007ffc505bfa80 RDI: 0000000040000000 [ 74.276314] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffc505bf890 [ 74.277271] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f14799c8bf0 [ 74.278281] R13: 00007ffc505bfbc0 R14: 0000000000000000 R15: 00000000000000f8 [ 74.279298] [ 74.279661] irq event stamp: 11941 [ 74.280154] hardirqs last enabled at (11951): [] __up_console_sem+0x78/0x80 [ 74.281387] hardirqs last disabled at (11962): [] __up_console_sem+0x5d/0x80 [ 74.282583] softirqs last enabled at (11552): [] irq_exit_rcu+0x93/0xc0 [ 74.283738] softirqs last disabled at (11547): [] irq_exit_rcu+0x93/0xc0 [ 74.284868] ---[ end trace 0000000000000000 ]--- executing program [ 75.784092] Bluetooth: hci0: command 0x0409 tx timeout [ 77.831631] Bluetooth: hci0: command 0x041b tx timeout executing program [ 79.879428] Bluetooth: hci0: command 0x040f tx timeout executing program [ 81.927424] Bluetooth: hci0: command 0x0419 tx timeout VM DIAGNOSIS: 11:15:42 Registers: info registers vcpu 0 RAX=000000000001fe89 RBX=0000000000000000 RCX=ffffffff844d0a0e RDX=0000000000000000 RSI=0000000000000000 RDI=ffffffff81287415 RBP=dffffc0000000000 RSP=ffffffff85407e10 R8 =0000000000000001 R9 =ffffed100d9c69f8 R10=ffff88806ce34fc3 R11=0000000000000001 R12=ffffffff85d35a10 R13=1ffffffff0a80fc7 R14=0000000000000000 R15=0000000000000000 RIP=ffffffff844d199f 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=00007fdcbe9a2a50 CR3=0000000009b76000 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=2036303a36313a31312037312079614d XMM01=5d3131303034312e34372020205b203a XMM02=75636578652d7a7973203a6d6d6f4320 XMM03=20202020202020572020202020202020 XMM04=6e2d3263722d302e342e362020202020 XMM05=3a6465746e69615420302e726f747563 XMM06=32203a4449502031203a555043205d31 XMM07=6e72656b2072656c6c616b7a79732036 XMM08=7475636578652d7a7973223d6d6d6f63 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000000000020 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507f85 RDI=ffffffff87f2dc00 RBP=ffffffff87f2dbc0 RSP=ffff88801cdf75f0 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000020 R11=0000000000000001 R12=0000000000000020 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 0000555556998400 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=00007f84d7e886f4 CR3=0000000019ee4000 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