syzkaller login: [ 38.787022] sshd (220) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:17739' (ECDSA) to the list of known hosts. 2023/05/18 09:42:30 fuzzer started 2023/05/18 09:42:31 dialing manager at localhost:44319 2023/05/18 09:42:31 checking machine... 2023/05/18 09:42:31 checking revisions... [ 40.374893] kmemleak: Automatic memory scanning thread ended 2023/05/18 09:42:31 testing simple program... [ 40.422776] cgroup: Unknown subsys name 'net' [ 40.505577] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 53.150687] audit: type=1400 audit(1684402964.145:6): avc: denied { execmem } for pid=260 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 54.272313] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 54.274465] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 54.275441] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 54.278974] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 54.280854] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 54.281794] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 54.602008] ------------[ cut here ]------------ [ 54.602471] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 54.603656] WARNING: CPU: 1 PID: 261 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 54.604407] Modules linked in: [ 54.604728] CPU: 1 PID: 261 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 54.607253] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 54.608724] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 54.609147] 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 [ 54.610737] RSP: 0018:ffff88801eccfc00 EFLAGS: 00010282 [ 54.611169] RAX: 0000000000000000 RBX: ffff88800c814840 RCX: 0000000000000000 [ 54.611887] RDX: ffff88801839d1c0 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 54.612521] RBP: ffff88800c814854 R08: 0000000000000001 R09: 0000000000000000 [ 54.613156] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 54.613788] R13: ffffffff84e23fe0 R14: ffff88800c814848 R15: ffffffff84d74dc0 [ 54.614364] FS: 000055555595f400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 54.615054] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.615585] CR2: 00007f87010496f4 CR3: 000000000f082000 CR4: 0000000000350ee0 [ 54.616241] Call Trace: [ 54.616479] [ 54.616720] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 54.617198] ipv4_frags_init_net+0x269/0x440 [ 54.617591] ops_init+0xbb/0x6b0 [ 54.617953] setup_net+0x3d9/0x990 [ 54.618282] ? down_read_killable+0x1d7/0x4e0 [ 54.618725] ? __pfx_setup_net+0x10/0x10 [ 54.619085] ? copy_net_ns+0x17c/0x770 [ 54.619452] copy_net_ns+0x321/0x770 [ 54.619839] create_new_namespaces+0x3f6/0xb30 [ 54.620299] unshare_nsproxy_namespaces+0xc1/0x200 [ 54.620753] ksys_unshare+0x44d/0x8e0 [ 54.621089] ? __pfx_ksys_unshare+0x10/0x10 [ 54.621550] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 54.622116] __x64_sys_unshare+0x31/0x40 [ 54.622478] do_syscall_64+0x3f/0x90 [ 54.622850] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 54.623300] RIP: 0033:0x7fc7fd0370d7 [ 54.623655] 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 [ 54.625302] RSP: 002b:00007fff7502dd98 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 54.625977] RAX: ffffffffffffffda RBX: 00007fff7502e3d8 RCX: 00007fc7fd0370d7 [ 54.626562] RDX: 00007fc7fd0a141f RSI: 00007fff7502dd30 RDI: 0000000040000000 [ 54.627254] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fff7502db40 [ 54.627894] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fc7fd149bf0 [ 54.628515] R13: 00007fff7502de70 R14: 0000000000000000 R15: 00000000000000f8 [ 54.629159] [ 54.629370] irq event stamp: 7819 [ 54.629696] hardirqs last enabled at (7831): [] __up_console_sem+0x78/0x80 [ 54.630360] hardirqs last disabled at (7840): [] __up_console_sem+0x5d/0x80 [ 54.631068] softirqs last enabled at (7782): [] irq_exit_rcu+0x93/0xc0 [ 54.631790] softirqs last disabled at (7777): [] irq_exit_rcu+0x93/0xc0 [ 54.632528] ---[ end trace 0000000000000000 ]--- [ 54.637913] ------------[ cut here ]------------ [ 54.638422] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 54.639625] WARNING: CPU: 0 PID: 261 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 54.640342] Modules linked in: [ 54.640854] CPU: 0 PID: 261 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 54.641842] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 54.642542] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 54.643128] 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 [ 54.644896] RSP: 0018:ffff88801eccfc00 EFLAGS: 00010282 [ 54.645361] RAX: 0000000000000000 RBX: ffff88800d725240 RCX: 0000000000000000 [ 54.646064] RDX: ffff88801839d1c0 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 54.646875] RBP: ffff88800d725254 R08: 0000000000000001 R09: 0000000000000000 [ 54.647496] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 54.648290] R13: ffffffff84e23fe0 R14: ffff88800d725248 R15: ffffffff84da7d60 [ 54.649162] FS: 000055555595f400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 54.649971] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.650463] CR2: 00007fdf1a5c2340 CR3: 000000000f082000 CR4: 0000000000350ef0 [ 54.651253] Call Trace: [ 54.651486] [ 54.651864] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 54.652331] ipv6_frags_init_net+0x206/0x3c0 [ 54.652885] ops_init+0xbb/0x6b0 [ 54.653201] setup_net+0x3d9/0x990 [ 54.653516] ? down_read_killable+0x1d7/0x4e0 [ 54.654056] ? __pfx_setup_net+0x10/0x10 [ 54.654422] ? copy_net_ns+0x17c/0x770 [ 54.654964] copy_net_ns+0x321/0x770 [ 54.655319] create_new_namespaces+0x3f6/0xb30 [ 54.655872] unshare_nsproxy_namespaces+0xc1/0x200 [ 54.656365] ksys_unshare+0x44d/0x8e0 [ 54.656875] ? __pfx_ksys_unshare+0x10/0x10 [ 54.657309] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 54.657965] __x64_sys_unshare+0x31/0x40 [ 54.658326] do_syscall_64+0x3f/0x90 [ 54.658825] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 54.659269] RIP: 0033:0x7fc7fd0370d7 [ 54.659573] 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 [ 54.661269] RSP: 002b:00007fff7502dd98 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 54.662126] RAX: ffffffffffffffda RBX: 00007fff7502e3d8 RCX: 00007fc7fd0370d7 [ 54.662871] RDX: 00007fc7fd0a141f RSI: 00007fff7502dd30 RDI: 0000000040000000 [ 54.663451] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fff7502db40 [ 54.664290] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fc7fd149bf0 [ 54.665018] R13: 00007fff7502de70 R14: 0000000000000000 R15: 00000000000000f8 [ 54.665795] [ 54.666004] irq event stamp: 11473 [ 54.666282] hardirqs last enabled at (11483): [] __up_console_sem+0x78/0x80 [ 54.667161] hardirqs last disabled at (11540): [] __up_console_sem+0x5d/0x80 [ 54.668038] softirqs last enabled at (11612): [] irq_exit_rcu+0x93/0xc0 [ 54.668958] softirqs last disabled at (11625): [] irq_exit_rcu+0x93/0xc0 [ 54.669766] ---[ end trace 0000000000000000 ]--- [ 54.671185] ------------[ cut here ]------------ [ 54.671938] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 54.673395] WARNING: CPU: 1 PID: 261 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 54.674162] Modules linked in: [ 54.674478] CPU: 1 PID: 261 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 54.675274] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 54.676012] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 54.676509] 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 [ 54.677983] RSP: 0018:ffff88801eccfbf0 EFLAGS: 00010286 [ 54.678433] RAX: 0000000000000000 RBX: ffff88800fffac40 RCX: 0000000000000000 [ 54.679037] RDX: ffff88801839d1c0 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 54.679639] RBP: ffff88800fffac54 R08: 0000000000000001 R09: 0000000000000000 [ 54.680215] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 54.680803] R13: ffffffff84e23fe0 R14: ffff88800fffac48 R15: ffffffff84db0aa0 [ 54.681408] FS: 000055555595f400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 54.682094] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.682569] CR2: 00007fdf1a5b29b0 CR3: 000000000f082000 CR4: 0000000000350ee0 [ 54.683186] Call Trace: [ 54.683401] [ 54.683634] nf_ct_net_init+0x224/0x3d0 [ 54.683985] ? __pfx_nf_ct_net_init+0x10/0x10 [ 54.684391] ops_init+0xbb/0x6b0 [ 54.684720] setup_net+0x3d9/0x990 [ 54.685026] ? down_read_killable+0x1d7/0x4e0 [ 54.685408] ? __pfx_setup_net+0x10/0x10 [ 54.685795] ? copy_net_ns+0x17c/0x770 [ 54.686141] copy_net_ns+0x321/0x770 [ 54.686467] create_new_namespaces+0x3f6/0xb30 [ 54.686901] unshare_nsproxy_namespaces+0xc1/0x200 [ 54.687303] ksys_unshare+0x44d/0x8e0 [ 54.687646] ? __pfx_ksys_unshare+0x10/0x10 [ 54.687995] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 54.688487] __x64_sys_unshare+0x31/0x40 [ 54.688861] do_syscall_64+0x3f/0x90 [ 54.689172] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 54.689590] RIP: 0033:0x7fc7fd0370d7 [ 54.689920] 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 [ 54.691351] RSP: 002b:00007fff7502dd98 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 54.691980] RAX: ffffffffffffffda RBX: 00007fff7502e3d8 RCX: 00007fc7fd0370d7 [ 54.692546] RDX: 00007fc7fd0a141f RSI: 00007fff7502dd30 RDI: 0000000040000000 [ 54.693143] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fff7502db40 [ 54.693731] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fc7fd149bf0 [ 54.694339] R13: 00007fff7502de70 R14: 0000000000000000 R15: 00000000000000f8 [ 54.694987] [ 54.695201] irq event stamp: 12693 [ 54.695497] hardirqs last enabled at (12703): [] __up_console_sem+0x78/0x80 [ 54.696303] hardirqs last disabled at (12714): [] __up_console_sem+0x5d/0x80 [ 54.697191] softirqs last enabled at (12194): [] irq_exit_rcu+0x93/0xc0 [ 54.698006] softirqs last disabled at (12003): [] irq_exit_rcu+0x93/0xc0 [ 54.698670] ---[ end trace 0000000000000000 ]--- executing program [ 56.300385] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 58.348294] Bluetooth: hci0: command 0x041b tx timeout [ 60.395787] Bluetooth: hci0: command 0x040f tx timeout executing program [ 62.443766] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 09:42:40 Registers: info registers vcpu 0 RAX=00000000ffffffff RBX=dffffc0000000000 RCX=0000000000000002 RDX=1ffffffff0ba6afc RSI=ffffea00005a5c00 RDI=ffffffff85d357e0 RBP=ffffea00005a5d00 RSP=ffff888008d9fb20 R8 =0000000000000000 R9 =ffff88807ffdc690 R10=ffffea00005a5d30 R11=0000000000016974 R12=0000000000000002 R13=ffffea00005a5c00 R14=0000000000016970 R15=ffff88807ffdc500 RIP=ffffffff81784be4 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 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=00007fdf1a6a62c0 CR3=000000001604c000 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=5837fe9dc1c91f3200000000000ae618 XMM01=4efd25dc030bd0af2c4f3555c34a59a5 XMM02=6b1e99b806172e3b00000000000aea28 XMM03=ac8bc31478ec851100000000000aefa0 XMM04=d8f928da5fab84ed0000000000113c78 XMM05=d3fdd5f48436fbd700000000000aead0 XMM06=72ee0a4b7de7619d00000000000ae988 XMM07=a1fcdcf819d7e1e500000000000ae728 XMM08=44495f474f4c5359530069253d595449 XMM09=00000000000000000000000000000000 XMM10=00200000000000000020000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=dffffc0000000060 RBX=00000000000003fd RCX=0000000000000000 RDX=00000000000003fd RSI=ffffffff82507ef0 RDI=ffffffff87f2dc00 RBP=ffffffff87f2dbc0 RSP=ffff88801eccf5c0 R8 =0000000000000007 R9 =0000000000000000 R10=0000000000000000 R11=0000000000000001 R12=0000000000002710 R13=0000000000000020 R14=fffffbfff0fe5bd1 R15=dffffc0000000000 RIP=ffffffff82507f45 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 000055555595f400 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=00007f87010496f4 CR3=000000000f082000 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