Debian GNU/Linux 11 syzkaller ttyS0 syzkaller login: [ 32.954535] sshd (218) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:23207' (ECDSA) to the list of known hosts. 2023/05/17 13:03:35 fuzzer started 2023/05/17 13:03:35 dialing manager at localhost:44319 2023/05/17 13:03:35 checking machine... 2023/05/17 13:03:35 checking revisions... [ 35.100206] kmemleak: Automatic memory scanning thread ended 2023/05/17 13:03:35 testing simple program... [ 35.168737] cgroup: Unknown subsys name 'net' [ 35.242987] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 47.589625] audit: type=1400 audit(1684328628.342:6): 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 [ 48.697524] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 48.699632] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 48.701511] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 48.704612] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 48.706122] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 48.708051] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 49.112018] ------------[ cut here ]------------ [ 49.112785] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 49.114760] WARNING: CPU: 1 PID: 260 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 49.116169] Modules linked in: [ 49.116686] CPU: 1 PID: 260 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 49.121587] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 49.122575] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 49.123298] 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 [ 49.125524] RSP: 0018:ffff88801c427c00 EFLAGS: 00010282 [ 49.126160] RAX: 0000000000000000 RBX: ffff88800fbb6c40 RCX: 0000000000000000 [ 49.127021] RDX: ffff888016a58000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 49.127928] RBP: ffff88800fbb6c54 R08: 0000000000000001 R09: 0000000000000000 [ 49.128801] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 49.129677] R13: ffffffff84e23fe0 R14: ffff88800fbb6c48 R15: ffffffff84d74dc0 [ 49.130545] FS: 0000555555cfd400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 49.131523] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 49.132213] CR2: 00007fe07d2472d0 CR3: 000000000c7e2000 CR4: 0000000000350ee0 [ 49.133087] Call Trace: [ 49.133432] [ 49.133727] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 49.134323] ipv4_frags_init_net+0x269/0x440 [ 49.134896] ops_init+0xbb/0x6b0 [ 49.135369] setup_net+0x3d9/0x990 [ 49.135814] ? down_read_killable+0x1d7/0x4e0 [ 49.136397] ? __pfx_setup_net+0x10/0x10 [ 49.136901] ? copy_net_ns+0x17c/0x770 [ 49.137419] copy_net_ns+0x321/0x770 [ 49.137889] create_new_namespaces+0x3f6/0xb30 [ 49.138490] unshare_nsproxy_namespaces+0xc1/0x200 [ 49.139125] ksys_unshare+0x44d/0x8e0 [ 49.139632] ? __pfx_ksys_unshare+0x10/0x10 [ 49.140163] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 49.140884] __x64_sys_unshare+0x31/0x40 [ 49.141415] do_syscall_64+0x3f/0x90 [ 49.141885] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 49.142541] RIP: 0033:0x7ff41eaf10d7 [ 49.142996] 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 [ 49.145116] RSP: 002b:00007ffcb25f5058 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 49.146039] RAX: ffffffffffffffda RBX: 00007ffcb25f5698 RCX: 00007ff41eaf10d7 [ 49.146904] RDX: 00007ff41eb5b41f RSI: 00007ffcb25f4ff0 RDI: 0000000040000000 [ 49.147776] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffcb25f4e00 [ 49.148646] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ff41ec03bf0 [ 49.149505] R13: 00007ffcb25f5130 R14: 0000000000000000 R15: 00000000000000f8 [ 49.150391] [ 49.150687] irq event stamp: 8423 [ 49.151096] hardirqs last enabled at (8433): [] __up_console_sem+0x78/0x80 [ 49.152153] hardirqs last disabled at (8444): [] __up_console_sem+0x5d/0x80 [ 49.153183] softirqs last enabled at (7964): [] irq_exit_rcu+0x93/0xc0 [ 49.154199] softirqs last disabled at (7959): [] irq_exit_rcu+0x93/0xc0 [ 49.155208] ---[ end trace 0000000000000000 ]--- [ 49.160594] ------------[ cut here ]------------ [ 49.161177] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 49.162778] WARNING: CPU: 1 PID: 260 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 49.163944] Modules linked in: [ 49.164368] CPU: 1 PID: 260 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 49.165483] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 49.166472] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 49.167117] 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 [ 49.169246] RSP: 0018:ffff88801c427c00 EFLAGS: 00010282 [ 49.169913] RAX: 0000000000000000 RBX: ffff88800e9dda40 RCX: 0000000000000000 [ 49.170788] RDX: ffff888016a58000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 49.171668] RBP: ffff88800e9dda54 R08: 0000000000000001 R09: 0000000000000000 [ 49.172582] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 49.173487] R13: ffffffff84e23fe0 R14: ffff88800e9dda48 R15: ffffffff84da7d60 [ 49.174323] FS: 0000555555cfd400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 49.175300] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 49.176024] CR2: 00007fe07d2472d0 CR3: 000000000c7e2000 CR4: 0000000000350ee0 [ 49.176975] Call Trace: [ 49.177308] [ 49.177624] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 49.178223] ipv6_frags_init_net+0x206/0x3c0 [ 49.178804] ops_init+0xbb/0x6b0 [ 49.179266] setup_net+0x3d9/0x990 [ 49.179745] ? down_read_killable+0x1d7/0x4e0 [ 49.180304] ? __pfx_setup_net+0x10/0x10 [ 49.180827] ? copy_net_ns+0x17c/0x770 [ 49.181324] copy_net_ns+0x321/0x770 [ 49.181822] create_new_namespaces+0x3f6/0xb30 [ 49.182425] unshare_nsproxy_namespaces+0xc1/0x200 [ 49.183027] ksys_unshare+0x44d/0x8e0 [ 49.183541] ? __pfx_ksys_unshare+0x10/0x10 [ 49.184075] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 49.184797] __x64_sys_unshare+0x31/0x40 [ 49.185299] do_syscall_64+0x3f/0x90 [ 49.185790] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 49.186441] RIP: 0033:0x7ff41eaf10d7 [ 49.186893] 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 [ 49.189010] RSP: 002b:00007ffcb25f5058 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 49.189931] RAX: ffffffffffffffda RBX: 00007ffcb25f5698 RCX: 00007ff41eaf10d7 [ 49.190801] RDX: 00007ff41eb5b41f RSI: 00007ffcb25f4ff0 RDI: 0000000040000000 [ 49.191683] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffcb25f4e00 [ 49.192551] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ff41ec03bf0 [ 49.193425] R13: 00007ffcb25f5130 R14: 0000000000000000 R15: 00000000000000f8 [ 49.194281] [ 49.194608] irq event stamp: 10395 [ 49.195028] hardirqs last enabled at (10405): [] __up_console_sem+0x78/0x80 [ 49.196081] hardirqs last disabled at (10416): [] __up_console_sem+0x5d/0x80 [ 49.197122] softirqs last enabled at (9968): [] irq_exit_rcu+0x93/0xc0 [ 49.198140] softirqs last disabled at (9963): [] irq_exit_rcu+0x93/0xc0 [ 49.199168] ---[ end trace 0000000000000000 ]--- [ 49.200500] ------------[ cut here ]------------ [ 49.201081] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 49.202938] WARNING: CPU: 1 PID: 260 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 49.204003] Modules linked in: [ 49.204430] CPU: 1 PID: 260 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 49.205576] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 49.206580] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 49.207251] 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 [ 49.209408] RSP: 0018:ffff88801c427bf0 EFLAGS: 00010286 [ 49.210056] RAX: 0000000000000000 RBX: ffff88800e9dd440 RCX: 0000000000000000 [ 49.210946] RDX: ffff888016a58000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 49.211848] RBP: ffff88800e9dd454 R08: 0000000000000001 R09: 0000000000000000 [ 49.212729] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 49.213593] R13: ffffffff84e23fe0 R14: ffff88800e9dd448 R15: ffffffff84db0aa0 [ 49.214468] FS: 0000555555cfd400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 49.215517] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 49.216223] CR2: 00007fe07d2472d0 CR3: 000000000c7e2000 CR4: 0000000000350ee0 [ 49.217100] Call Trace: [ 49.217457] [ 49.217759] nf_ct_net_init+0x224/0x3d0 [ 49.218272] ? __pfx_nf_ct_net_init+0x10/0x10 [ 49.218868] ops_init+0xbb/0x6b0 [ 49.219373] setup_net+0x3d9/0x990 [ 49.219826] ? down_read_killable+0x1d7/0x4e0 [ 49.220413] ? __pfx_setup_net+0x10/0x10 [ 49.220925] ? copy_net_ns+0x17c/0x770 [ 49.221456] copy_net_ns+0x321/0x770 [ 49.221934] create_new_namespaces+0x3f6/0xb30 [ 49.222544] unshare_nsproxy_namespaces+0xc1/0x200 [ 49.223200] ksys_unshare+0x44d/0x8e0 [ 49.223725] ? __pfx_ksys_unshare+0x10/0x10 [ 49.224282] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 49.225034] __x64_sys_unshare+0x31/0x40 [ 49.225599] do_syscall_64+0x3f/0x90 [ 49.226079] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 49.226769] RIP: 0033:0x7ff41eaf10d7 [ 49.227266] 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 [ 49.229504] RSP: 002b:00007ffcb25f5058 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 49.230470] RAX: ffffffffffffffda RBX: 00007ffcb25f5698 RCX: 00007ff41eaf10d7 [ 49.231378] RDX: 00007ff41eb5b41f RSI: 00007ffcb25f4ff0 RDI: 0000000040000000 [ 49.232261] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffcb25f4e00 [ 49.233185] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ff41ec03bf0 [ 49.234100] R13: 00007ffcb25f5130 R14: 0000000000000000 R15: 00000000000000f8 [ 49.235043] [ 49.235407] irq event stamp: 11163 [ 49.235850] hardirqs last enabled at (11173): [] __up_console_sem+0x78/0x80 [ 49.236947] hardirqs last disabled at (11184): [] __up_console_sem+0x5d/0x80 [ 49.238046] softirqs last enabled at (11122): [] irq_exit_rcu+0x93/0xc0 [ 49.239118] softirqs last disabled at (11115): [] irq_exit_rcu+0x93/0xc0 [ 49.240179] ---[ end trace 0000000000000000 ]--- executing program [ 50.784777] Bluetooth: hci0: command 0x0409 tx timeout [ 52.832423] Bluetooth: hci0: command 0x041b tx timeout executing program [ 54.880433] Bluetooth: hci0: command 0x040f tx timeout executing program [ 56.928425] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 13:03:44 Registers: info registers vcpu 0 RAX=0000000080000000 RBX=0000000000000801 RCX=0000000000000000 RDX=ffff888010001b40 RSI=ffffffff82024bc4 RDI=0000000000000001 RBP=ffff88800d4e5d00 RSP=ffff888010087a60 R8 =0000000000000001 R9 =0000000000000000 R10=0000000000000000 R11=0000000000000001 R12=ffff888008948000 R13=ffff88800d4e5d10 R14=ffff888008948018 R15=ffff88800f3380a8 RIP=ffffffff814be660 RFL=00000246 [---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=00007fe07d2627f0 CR3=000000000ed1a000 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=c155b3d6302741b2234f73e77418b3e6 XMM02=6b1e99b806172e3b00000000000aea28 XMM03=ac8bc31478ec851100000000000aefa0 XMM04=a536f3ce743a491a000000000013b900 XMM05=d3fdd5f48436fbd700000000000aead0 XMM06=3be759032e05cf0300000000000ae988 XMM07=a1fcdcf819d7e1e500000000000ae728 XMM08=44495f474f4c5359530069253d595449 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000200000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000000000079 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507f85 RDI=ffffffff87f2dc00 RBP=ffffffff87f2dbc0 RSP=ffff88801c4275f0 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000079 R11=0000000000000001 R12=0000000000000079 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 0000555555cfd400 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=00007fe07d2472d0 CR3=000000000c7e2000 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