syzkaller login: [ 35.718061] sshd (217) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:2236' (ECDSA) to the list of known hosts. 2023/05/18 09:19:56 fuzzer started 2023/05/18 09:19:56 dialing manager at localhost:44319 2023/05/18 09:19:56 checking machine... 2023/05/18 09:19:56 checking revisions... [ 37.267433] kmemleak: Automatic memory scanning thread ended 2023/05/18 09:19:56 testing simple program... [ 37.356749] cgroup: Unknown subsys name 'net' [ 37.439377] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program [ 48.940344] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) [ 49.155094] audit: type=1400 audit(1684401608.499:6): 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 executing program [ 50.244807] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 50.247168] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 50.248656] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 50.251090] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 50.252563] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 50.253725] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 50.642051] ------------[ cut here ]------------ [ 50.642729] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 50.644354] WARNING: CPU: 0 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 50.645427] Modules linked in: [ 50.645849] CPU: 0 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 50.650740] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 50.651812] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 50.652539] 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 [ 50.654699] RSP: 0018:ffff88801fc47c00 EFLAGS: 00010282 [ 50.655354] RAX: 0000000000000000 RBX: ffff888015bb7440 RCX: 0000000000000000 [ 50.656262] RDX: ffff88801fc38000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 50.657150] RBP: ffff888015bb7454 R08: 0000000000000001 R09: 0000000000000000 [ 50.658039] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 50.658921] R13: ffffffff84e23fe0 R14: ffff888015bb7448 R15: ffffffff84d74dc0 [ 50.659822] FS: 0000555556af4400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 50.660832] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.661585] CR2: 00007f108dc876f4 CR3: 000000002024e000 CR4: 0000000000350ef0 [ 50.662446] Call Trace: [ 50.662800] [ 50.663100] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 50.663746] ipv4_frags_init_net+0x269/0x440 [ 50.664318] ops_init+0xbb/0x6b0 [ 50.664800] setup_net+0x3d9/0x990 [ 50.665266] ? down_read_killable+0x1d7/0x4e0 [ 50.665872] ? __pfx_setup_net+0x10/0x10 [ 50.666380] ? copy_net_ns+0x17c/0x770 [ 50.666916] copy_net_ns+0x321/0x770 [ 50.667396] create_new_namespaces+0x3f6/0xb30 [ 50.668023] unshare_nsproxy_namespaces+0xc1/0x200 [ 50.668664] ksys_unshare+0x44d/0x8e0 [ 50.669156] ? __pfx_ksys_unshare+0x10/0x10 [ 50.669729] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 50.670439] __x64_sys_unshare+0x31/0x40 [ 50.671013] do_syscall_64+0x3f/0x90 [ 50.671535] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 50.672231] RIP: 0033:0x7f50be19b0d7 [ 50.672748] 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 [ 50.674944] RSP: 002b:00007ffde0fbef28 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 50.675887] RAX: ffffffffffffffda RBX: 00007ffde0fbf568 RCX: 00007f50be19b0d7 [ 50.676789] RDX: 00007f50be20541f RSI: 00007ffde0fbeec0 RDI: 0000000040000000 [ 50.677671] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffde0fbecd0 [ 50.678554] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f50be2adbf0 [ 50.679415] R13: 00007ffde0fbf000 R14: 0000000000000000 R15: 00000000000000f8 [ 50.680347] [ 50.680681] irq event stamp: 11469 [ 50.681133] hardirqs last enabled at (11479): [] __up_console_sem+0x78/0x80 [ 50.682260] hardirqs last disabled at (11490): [] __up_console_sem+0x5d/0x80 [ 50.683394] softirqs last enabled at (11018): [] irq_exit_rcu+0x93/0xc0 [ 50.684516] softirqs last disabled at (10993): [] irq_exit_rcu+0x93/0xc0 [ 50.685619] ---[ end trace 0000000000000000 ]--- [ 50.690934] ------------[ cut here ]------------ [ 50.691746] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 50.693415] WARNING: CPU: 0 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 50.694480] Modules linked in: [ 50.694917] CPU: 0 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 50.696074] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 50.697100] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 50.697805] 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 [ 50.700087] RSP: 0018:ffff88801fc47c00 EFLAGS: 00010282 [ 50.700792] RAX: 0000000000000000 RBX: ffff88800e878040 RCX: 0000000000000000 [ 50.701684] RDX: ffff88801fc38000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 50.702602] RBP: ffff88800e878054 R08: 0000000000000001 R09: 0000000000000000 [ 50.703476] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 50.704394] R13: ffffffff84e23fe0 R14: ffff88800e878048 R15: ffffffff84da7d60 [ 50.705309] FS: 0000555556af4400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 50.706319] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.707081] CR2: 00007f108dc876f4 CR3: 000000002024e000 CR4: 0000000000350ef0 [ 50.708018] Call Trace: [ 50.708363] [ 50.708707] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 50.709333] ipv6_frags_init_net+0x206/0x3c0 [ 50.709938] ops_init+0xbb/0x6b0 [ 50.710415] setup_net+0x3d9/0x990 [ 50.710914] ? down_read_killable+0x1d7/0x4e0 [ 50.711527] ? __pfx_setup_net+0x10/0x10 [ 50.712069] ? copy_net_ns+0x17c/0x770 [ 50.712618] copy_net_ns+0x321/0x770 [ 50.713117] create_new_namespaces+0x3f6/0xb30 [ 50.713740] unshare_nsproxy_namespaces+0xc1/0x200 [ 50.714373] ksys_unshare+0x44d/0x8e0 [ 50.714902] ? __pfx_ksys_unshare+0x10/0x10 [ 50.715454] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 50.716217] __x64_sys_unshare+0x31/0x40 [ 50.716772] do_syscall_64+0x3f/0x90 [ 50.717263] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 50.717952] RIP: 0033:0x7f50be19b0d7 [ 50.718428] 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 [ 50.720638] RSP: 002b:00007ffde0fbef28 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 50.721601] RAX: ffffffffffffffda RBX: 00007ffde0fbf568 RCX: 00007f50be19b0d7 [ 50.722475] RDX: 00007f50be20541f RSI: 00007ffde0fbeec0 RDI: 0000000040000000 [ 50.723376] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffde0fbecd0 [ 50.724290] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f50be2adbf0 [ 50.725186] R13: 00007ffde0fbf000 R14: 0000000000000000 R15: 00000000000000f8 [ 50.726122] [ 50.726429] irq event stamp: 13285 [ 50.726907] hardirqs last enabled at (13297): [] __up_console_sem+0x78/0x80 [ 50.728009] hardirqs last disabled at (13308): [] __up_console_sem+0x5d/0x80 [ 50.729087] softirqs last enabled at (12860): [] irq_exit_rcu+0x93/0xc0 [ 50.730127] softirqs last disabled at (12855): [] irq_exit_rcu+0x93/0xc0 [ 50.731178] ---[ end trace 0000000000000000 ]--- [ 50.732615] ------------[ cut here ]------------ [ 50.733230] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 50.735127] WARNING: CPU: 0 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 50.736281] Modules linked in: [ 50.736812] CPU: 0 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 50.738267] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 50.739526] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 50.740280] 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 [ 50.742544] RSP: 0018:ffff88801fc47bf0 EFLAGS: 00010286 [ 50.743214] RAX: 0000000000000000 RBX: ffff88800e878840 RCX: 0000000000000000 [ 50.744187] RDX: ffff88801fc38000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 50.745121] RBP: ffff88800e878854 R08: 0000000000000001 R09: 0000000000000000 [ 50.746034] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 50.746940] R13: ffffffff84e23fe0 R14: ffff88800e878848 R15: ffffffff84db0aa0 [ 50.747848] FS: 0000555556af4400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 50.748855] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.749609] CR2: 00007f108dc876f4 CR3: 000000002024e000 CR4: 0000000000350ef0 [ 50.750635] Call Trace: [ 50.751033] [ 50.751381] nf_ct_net_init+0x224/0x3d0 [ 50.752005] ? __pfx_nf_ct_net_init+0x10/0x10 [ 50.752631] ops_init+0xbb/0x6b0 [ 50.753095] setup_net+0x3d9/0x990 [ 50.753600] ? down_read_killable+0x1d7/0x4e0 [ 50.754178] ? __pfx_setup_net+0x10/0x10 [ 50.754728] ? copy_net_ns+0x17c/0x770 [ 50.755249] copy_net_ns+0x321/0x770 [ 50.755779] create_new_namespaces+0x3f6/0xb30 [ 50.756549] unshare_nsproxy_namespaces+0xc1/0x200 [ 50.757322] ksys_unshare+0x44d/0x8e0 [ 50.757960] ? __pfx_ksys_unshare+0x10/0x10 [ 50.758678] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 50.759593] __x64_sys_unshare+0x31/0x40 [ 50.760232] do_syscall_64+0x3f/0x90 [ 50.760861] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 50.761619] RIP: 0033:0x7f50be19b0d7 [ 50.762104] 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 [ 50.764533] RSP: 002b:00007ffde0fbef28 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 50.765576] RAX: ffffffffffffffda RBX: 00007ffde0fbf568 RCX: 00007f50be19b0d7 [ 50.766565] RDX: 00007f50be20541f RSI: 00007ffde0fbeec0 RDI: 0000000040000000 [ 50.767521] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffde0fbecd0 [ 50.768516] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f50be2adbf0 [ 50.769553] R13: 00007ffde0fbf000 R14: 0000000000000000 R15: 00000000000000f8 [ 50.770545] [ 50.770889] irq event stamp: 14099 [ 50.771344] hardirqs last enabled at (14109): [] __up_console_sem+0x78/0x80 [ 50.772514] hardirqs last disabled at (14120): [] __up_console_sem+0x5d/0x80 [ 50.773597] softirqs last enabled at (14006): [] irq_exit_rcu+0x93/0xc0 [ 50.774644] softirqs last disabled at (13995): [] irq_exit_rcu+0x93/0xc0 [ 50.775696] ---[ end trace 0000000000000000 ]--- executing program [ 52.326176] Bluetooth: hci0: command 0x0409 tx timeout [ 54.372650] Bluetooth: hci0: command 0x041b tx timeout executing program [ 56.420556] Bluetooth: hci0: command 0x040f tx timeout executing program [ 58.468560] Bluetooth: hci0: command 0x0419 tx timeout VM DIAGNOSIS: 09:20:08 Registers: info registers vcpu 0 RAX=0000000000000020 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507f85 RDI=ffffffff87f2dc00 RBP=ffffffff87f2dbc0 RSP=ffff88801fc475f0 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 0000555556af4400 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=00007f108dc876f4 CR3=000000002024e000 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=0000000000034985 RBX=0000000000000001 RCX=ffffffff844d0a0e RDX=0000000000000000 RSI=0000000000000000 RDI=ffffffff81287415 RBP=dffffc0000000000 RSP=ffff888008dcfe70 R8 =0000000000000001 R9 =ffffed100d9e69f8 R10=ffff88806cf34fc3 R11=0000000000000001 R12=ffffffff85d35a10 R13=1ffff110011b9fd3 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 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=00007f82f931a410 CR3=000000000cad4000 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=2039303a30323a39302038312079614d XMM01=5d3934383534362e30352020205b203a XMM02=75636578652d7a7973203a6d6d6f4320 XMM03=20202020202020572020202020202020 XMM04=6e2d3263722d302e342e362020202020 XMM05=3a6465746e69615420302e726f747563 XMM06=32203a4449502030203a555043205d39 XMM07=6e72656b2072656c6c616b7a79732039 XMM08=7475636578652d7a7973223d6d6d6f63 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000