syzkaller login: [ 36.152430] sshd (226) used greatest stack depth: 24160 bytes left Warning: Permanently added '[localhost]:19972' (ECDSA) to the list of known hosts. 2023/05/18 03:06:22 fuzzer started 2023/05/18 03:06:22 dialing manager at localhost:44319 2023/05/18 03:06:22 checking machine... 2023/05/18 03:06:22 checking revisions... [ 37.233039] kmemleak: Automatic memory scanning thread ended 2023/05/18 03:06:22 testing simple program... [ 37.308591] cgroup: Unknown subsys name 'net' [ 37.404444] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program executing program [ 52.082035] audit: type=1400 audit(1684379197.538:6): avc: denied { execmem } for pid=259 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 53.185389] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 53.193831] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 53.196555] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 53.205103] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 53.206691] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 53.208860] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 53.591062] ------------[ cut here ]------------ [ 53.591789] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 53.594101] WARNING: CPU: 0 PID: 260 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 53.595249] Modules linked in: [ 53.595697] CPU: 0 PID: 260 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 53.597049] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 53.601763] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 53.602569] 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 [ 53.604875] RSP: 0018:ffff88801e1f7c00 EFLAGS: 00010282 [ 53.605571] RAX: 0000000000000000 RBX: ffff88800d09f440 RCX: 0000000000000000 [ 53.606421] RDX: ffff88801e1e8000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 53.607253] RBP: ffff88800d09f454 R08: 0000000000000001 R09: 0000000000000000 [ 53.608101] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 53.608907] R13: ffffffff84e23fe0 R14: ffff88800d09f448 R15: ffffffff84d74dc0 [ 53.609739] FS: 0000555557476400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 53.610769] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.611562] CR2: 00007f887ef806f4 CR3: 0000000019534000 CR4: 0000000000350ef0 [ 53.612449] Call Trace: [ 53.612777] [ 53.613109] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 53.613739] ipv4_frags_init_net+0x269/0x440 [ 53.614356] ops_init+0xbb/0x6b0 [ 53.614813] setup_net+0x3d9/0x990 [ 53.615318] ? down_read_killable+0x1d7/0x4e0 [ 53.615919] ? __pfx_setup_net+0x10/0x10 [ 53.616482] ? copy_net_ns+0x17c/0x770 [ 53.617028] copy_net_ns+0x321/0x770 [ 53.617518] create_new_namespaces+0x3f6/0xb30 [ 53.618133] unshare_nsproxy_namespaces+0xc1/0x200 [ 53.618741] ksys_unshare+0x44d/0x8e0 [ 53.619290] ? __pfx_ksys_unshare+0x10/0x10 [ 53.619872] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 53.620649] __x64_sys_unshare+0x31/0x40 [ 53.621208] do_syscall_64+0x3f/0x90 [ 53.621698] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 53.622373] RIP: 0033:0x7f03aae500d7 [ 53.622845] 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 [ 53.625075] RSP: 002b:00007fff37f0dff8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 53.626037] RAX: ffffffffffffffda RBX: 00007fff37f0e638 RCX: 00007f03aae500d7 [ 53.626911] RDX: 00007f03aaeba41f RSI: 00007fff37f0df90 RDI: 0000000040000000 [ 53.627807] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fff37f0dda0 [ 53.628686] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f03aaf62bf0 [ 53.629575] R13: 00007fff37f0e0d0 R14: 0000000000000000 R15: 00000000000000f8 [ 53.630495] [ 53.630794] irq event stamp: 8319 [ 53.631248] hardirqs last enabled at (8331): [] __up_console_sem+0x78/0x80 [ 53.632340] hardirqs last disabled at (8342): [] __up_console_sem+0x5d/0x80 [ 53.633427] softirqs last enabled at (7982): [] irq_exit_rcu+0x93/0xc0 [ 53.634443] softirqs last disabled at (7977): [] irq_exit_rcu+0x93/0xc0 [ 53.635481] ---[ end trace 0000000000000000 ]--- [ 53.640813] ------------[ cut here ]------------ [ 53.642155] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 53.643869] WARNING: CPU: 0 PID: 260 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 53.645023] Modules linked in: [ 53.645427] CPU: 0 PID: 260 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 53.646659] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 53.647762] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 53.648528] 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 [ 53.650836] RSP: 0018:ffff88801e1f7c00 EFLAGS: 00010282 [ 53.651699] RAX: 0000000000000000 RBX: ffff88800c77de40 RCX: 0000000000000000 [ 53.652688] RDX: ffff88801e1e8000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 53.653690] RBP: ffff88800c77de54 R08: 0000000000000001 R09: 0000000000000000 [ 53.654738] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 53.655741] R13: ffffffff84e23fe0 R14: ffff88800c77de48 R15: ffffffff84da7d60 [ 53.656725] FS: 0000555557476400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 53.657786] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.658527] CR2: 00007f887ef806f4 CR3: 0000000019534000 CR4: 0000000000350ef0 [ 53.659408] Call Trace: [ 53.659756] [ 53.660090] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 53.660698] ipv6_frags_init_net+0x206/0x3c0 [ 53.661300] ops_init+0xbb/0x6b0 [ 53.661752] setup_net+0x3d9/0x990 [ 53.662242] ? down_read_killable+0x1d7/0x4e0 [ 53.662809] ? __pfx_setup_net+0x10/0x10 [ 53.663345] ? copy_net_ns+0x17c/0x770 [ 53.663864] copy_net_ns+0x321/0x770 [ 53.664381] create_new_namespaces+0x3f6/0xb30 [ 53.664994] unshare_nsproxy_namespaces+0xc1/0x200 [ 53.665603] ksys_unshare+0x44d/0x8e0 [ 53.666122] ? __pfx_ksys_unshare+0x10/0x10 [ 53.666663] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 53.667405] __x64_sys_unshare+0x31/0x40 [ 53.667970] do_syscall_64+0x3f/0x90 [ 53.668450] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 53.669137] RIP: 0033:0x7f03aae500d7 [ 53.669597] 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 [ 53.671771] RSP: 002b:00007fff37f0dff8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 53.672721] RAX: ffffffffffffffda RBX: 00007fff37f0e638 RCX: 00007f03aae500d7 [ 53.673609] RDX: 00007f03aaeba41f RSI: 00007fff37f0df90 RDI: 0000000040000000 [ 53.674492] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fff37f0dda0 [ 53.675391] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f03aaf62bf0 [ 53.676273] R13: 00007fff37f0e0d0 R14: 0000000000000000 R15: 00000000000000f8 [ 53.677186] [ 53.677486] irq event stamp: 10989 [ 53.677926] hardirqs last enabled at (10999): [] __up_console_sem+0x78/0x80 [ 53.679014] hardirqs last disabled at (11012): [] __up_console_sem+0x5d/0x80 [ 53.680100] softirqs last enabled at (10926): [] irq_exit_rcu+0x93/0xc0 [ 53.681148] softirqs last disabled at (10921): [] irq_exit_rcu+0x93/0xc0 [ 53.682181] ---[ end trace 0000000000000000 ]--- [ 53.683522] ------------[ cut here ]------------ [ 53.684240] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 53.686256] WARNING: CPU: 0 PID: 260 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 53.687371] Modules linked in: [ 53.687813] CPU: 0 PID: 260 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 53.689029] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 53.690088] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 53.690757] 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 [ 53.693040] RSP: 0018:ffff88801e1f7bf0 EFLAGS: 00010286 [ 53.693722] RAX: 0000000000000000 RBX: ffff88800c77d840 RCX: 0000000000000000 [ 53.694641] RDX: ffff88801e1e8000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 53.695587] RBP: ffff88800c77d854 R08: 0000000000000001 R09: 0000000000000000 [ 53.696516] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 53.697438] R13: ffffffff84e23fe0 R14: ffff88800c77d848 R15: ffffffff84db0aa0 [ 53.698357] FS: 0000555557476400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 53.699381] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.700161] CR2: 00007f887ef806f4 CR3: 0000000019534000 CR4: 0000000000350ef0 [ 53.701091] Call Trace: [ 53.701426] [ 53.701735] nf_ct_net_init+0x224/0x3d0 [ 53.702304] ? __pfx_nf_ct_net_init+0x10/0x10 [ 53.702902] ops_init+0xbb/0x6b0 [ 53.703395] setup_net+0x3d9/0x990 [ 53.703899] ? down_read_killable+0x1d7/0x4e0 [ 53.704522] ? __pfx_setup_net+0x10/0x10 [ 53.705076] ? copy_net_ns+0x17c/0x770 [ 53.705606] copy_net_ns+0x321/0x770 [ 53.706140] create_new_namespaces+0x3f6/0xb30 [ 53.706744] unshare_nsproxy_namespaces+0xc1/0x200 [ 53.707415] ksys_unshare+0x44d/0x8e0 [ 53.707962] ? __pfx_ksys_unshare+0x10/0x10 [ 53.708528] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 53.709300] __x64_sys_unshare+0x31/0x40 [ 53.709840] do_syscall_64+0x3f/0x90 [ 53.710358] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 53.711050] RIP: 0033:0x7f03aae500d7 [ 53.711529] 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 [ 53.713809] RSP: 002b:00007fff37f0dff8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 53.714769] RAX: ffffffffffffffda RBX: 00007fff37f0e638 RCX: 00007f03aae500d7 [ 53.715695] RDX: 00007f03aaeba41f RSI: 00007fff37f0df90 RDI: 0000000040000000 [ 53.716580] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fff37f0dda0 [ 53.717470] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f03aaf62bf0 [ 53.718356] R13: 00007fff37f0e0d0 R14: 0000000000000000 R15: 00000000000000f8 [ 53.719267] [ 53.719574] irq event stamp: 11773 [ 53.720041] hardirqs last enabled at (11785): [] __up_console_sem+0x78/0x80 [ 53.721111] hardirqs last disabled at (11796): [] __up_console_sem+0x5d/0x80 [ 53.722197] softirqs last enabled at (11258): [] irq_exit_rcu+0x93/0xc0 [ 53.723247] softirqs last disabled at (11217): [] irq_exit_rcu+0x93/0xc0 [ 53.724331] ---[ end trace 0000000000000000 ]--- executing program [ 55.266425] Bluetooth: hci0: command 0x0409 tx timeout [ 57.315178] Bluetooth: hci0: command 0x041b tx timeout executing program [ 59.362405] Bluetooth: hci0: command 0x040f tx timeout executing program [ 61.410072] Bluetooth: hci0: command 0x0419 tx timeout VM DIAGNOSIS: 03:06:37 Registers: info registers vcpu 0 RAX=000000000000005d RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507f85 RDI=ffffffff87f2dc00 RBP=ffffffff87f2dbc0 RSP=ffff88801e1f7618 R8 =0000000000000001 R9 =000000000000000a R10=000000000000005d R11=0000000000000001 R12=000000000000005d 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 0000555557476400 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=00007f887ef806f4 CR3=0000000019534000 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=000000000002e805 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=00000206 [-----P-] 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=00007f53c94ebb40 CR3=00000000164e0000 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=8ec97ff776bcc1b3a845b7c28c1a2fcf XMM02=6b1e99b806172e3b00000000000aea28 XMM03=ac8bc31478ec851100000000000aefa0 XMM04=d35f14e95510c1f600000000001123d8 XMM05=d3fdd5f48436fbd700000000000aead0 XMM06=784d45c79313944100000000000ae988 XMM07=a1fcdcf819d7e1e500000000000ae728 XMM08=44495f474f4c5359530069253d595449 XMM09=00000000000000000000000000000000 XMM10=00000000000000000020202000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000