[ 24.247522] sshd (203) used greatest stack depth: 24016 bytes left Debian GNU/Linux 11 syzkaller ttyS0 Warning: Permanently added '[localhost]:17747' (ECDSA) to the list of known hosts. 2023/05/16 23:35:48 fuzzer started 2023/05/16 23:35:49 dialing manager at localhost:35573 2023/05/16 23:35:49 checking machine... 2023/05/16 23:35:49 checking revisions... syzkaller login: [ 29.438560] kmemleak: Automatic memory scanning thread ended 2023/05/16 23:35:49 testing simple program... [ 29.510390] cgroup: Unknown subsys name 'net' [ 29.611248] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 42.344231] audit: type=1400 audit(1684280162.317:6): 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 [ 43.461420] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 43.463716] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 43.465559] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 43.468478] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 43.470746] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 43.472204] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 43.864932] ------------[ cut here ]------------ [ 43.865706] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 43.868065] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 43.869430] Modules linked in: [ 43.869947] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 43.874511] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 43.875535] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 43.876205] 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 20 24 e2 84 e8 6a cd d5 fc <0f> 0b 48 89 e8 48 c1 e8 03 42 0f b6 14 20 48 89 e8 83 e0 07 83 c0 [ 43.878428] RSP: 0018:ffff88801e8b7c00 EFLAGS: 00010282 [ 43.879118] RAX: 0000000000000000 RBX: ffff88800c54d440 RCX: 0000000000000000 [ 43.880011] RDX: ffff888010148000 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 43.880903] RBP: ffff88800c54d454 R08: 0000000000000001 R09: 0000000000000000 [ 43.881817] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 43.882681] R13: ffffffff84e223a0 R14: ffff88800c54d448 R15: ffffffff84d73340 [ 43.883584] FS: 0000555555bca400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 43.884585] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 43.885329] CR2: 00007ffe4d0cefc8 CR3: 000000000e7e4000 CR4: 0000000000350ef0 [ 43.886226] Call Trace: [ 43.886553] [ 43.886884] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 43.887498] ipv4_frags_init_net+0x269/0x440 [ 43.888089] ops_init+0xbb/0x6b0 [ 43.888535] setup_net+0x3d9/0x990 [ 43.889016] ? down_read_killable+0x1d7/0x4e0 [ 43.889609] ? __pfx_setup_net+0x10/0x10 [ 43.890151] ? copy_net_ns+0x17c/0x770 [ 43.890669] copy_net_ns+0x321/0x770 [ 43.891181] create_new_namespaces+0x3f6/0xb30 [ 43.891768] unshare_nsproxy_namespaces+0xc1/0x200 [ 43.892440] ksys_unshare+0x44d/0x8e0 [ 43.892958] ? __pfx_ksys_unshare+0x10/0x10 [ 43.893528] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 43.894279] __x64_sys_unshare+0x31/0x40 [ 43.894831] do_syscall_64+0x3f/0x90 [ 43.895440] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 43.896134] RIP: 0033:0x7f0c9a81d0d7 [ 43.896617] 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 [ 43.898895] RSP: 002b:00007ffca0247d78 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 43.899876] RAX: ffffffffffffffda RBX: 00007ffca02483b8 RCX: 00007f0c9a81d0d7 [ 43.900763] RDX: 00007f0c9a88741f RSI: 00007ffca0247d10 RDI: 0000000040000000 [ 43.901704] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffca0247b20 [ 43.902632] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f0c9a92fbf0 [ 43.903545] R13: 00007ffca0247e50 R14: 0000000000000000 R15: 00000000000000f8 [ 43.904482] [ 43.904823] irq event stamp: 8675 [ 43.905270] hardirqs last enabled at (8685): [] __up_console_sem+0x78/0x80 [ 43.906395] hardirqs last disabled at (8696): [] __up_console_sem+0x5d/0x80 [ 43.907495] softirqs last enabled at (8582): [] irq_exit_rcu+0x93/0xc0 [ 43.908566] softirqs last disabled at (8577): [] irq_exit_rcu+0x93/0xc0 [ 43.909655] ---[ end trace 0000000000000000 ]--- [ 43.915274] ------------[ cut here ]------------ [ 43.915917] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 43.917654] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 43.918761] Modules linked in: [ 43.919206] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 43.920411] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 43.921477] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 43.922178] 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 20 24 e2 84 e8 6a cd d5 fc <0f> 0b 48 89 e8 48 c1 e8 03 42 0f b6 14 20 48 89 e8 83 e0 07 83 c0 [ 43.924454] RSP: 0018:ffff88801e8b7c00 EFLAGS: 00010282 [ 43.925169] RAX: 0000000000000000 RBX: ffff88800ee79c40 RCX: 0000000000000000 [ 43.926090] RDX: ffff888010148000 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 43.927009] RBP: ffff88800ee79c54 R08: 0000000000000001 R09: 0000000000000000 [ 43.927939] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 43.928863] R13: ffffffff84e223a0 R14: ffff88800ee79c48 R15: ffffffff84da62e0 [ 43.929810] FS: 0000555555bca400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 43.930842] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 43.931599] CR2: 00007ffe4d0cefc8 CR3: 000000000e7e4000 CR4: 0000000000350ef0 [ 43.932570] Call Trace: [ 43.932954] [ 43.933271] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 43.933976] ipv6_frags_init_net+0x206/0x3c0 [ 43.934575] ops_init+0xbb/0x6b0 [ 43.935076] setup_net+0x3d9/0x990 [ 43.935564] ? down_read_killable+0x1d7/0x4e0 [ 43.936200] ? __pfx_setup_net+0x10/0x10 [ 43.936749] ? copy_net_ns+0x17c/0x770 [ 43.937319] copy_net_ns+0x321/0x770 [ 43.937874] create_new_namespaces+0x3f6/0xb30 [ 43.938501] unshare_nsproxy_namespaces+0xc1/0x200 [ 43.939180] ksys_unshare+0x44d/0x8e0 [ 43.939701] ? __pfx_ksys_unshare+0x10/0x10 [ 43.940303] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 43.941169] __x64_sys_unshare+0x31/0x40 [ 43.941713] do_syscall_64+0x3f/0x90 [ 43.942216] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 43.942892] RIP: 0033:0x7f0c9a81d0d7 [ 43.943365] 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 [ 43.945542] RSP: 002b:00007ffca0247d78 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 43.946490] RAX: ffffffffffffffda RBX: 00007ffca02483b8 RCX: 00007f0c9a81d0d7 [ 43.947375] RDX: 00007f0c9a88741f RSI: 00007ffca0247d10 RDI: 0000000040000000 [ 43.948258] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffca0247b20 [ 43.949148] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f0c9a92fbf0 [ 43.950049] R13: 00007ffca0247e50 R14: 0000000000000000 R15: 00000000000000f8 [ 43.950952] [ 43.951254] irq event stamp: 10617 [ 43.951684] hardirqs last enabled at (10627): [] __up_console_sem+0x78/0x80 [ 43.952771] hardirqs last disabled at (10638): [] __up_console_sem+0x5d/0x80 [ 43.953871] softirqs last enabled at (9694): [] irq_exit_rcu+0x93/0xc0 [ 43.954895] softirqs last disabled at (9679): [] irq_exit_rcu+0x93/0xc0 [ 43.955922] ---[ end trace 0000000000000000 ]--- [ 43.957288] ------------[ cut here ]------------ [ 43.958023] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 43.959937] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 43.960998] Modules linked in: [ 43.961436] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 43.962610] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 43.963618] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 43.964295] 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 20 24 e2 84 e8 6a cd d5 fc <0f> 0b 48 89 e8 48 c1 e8 03 42 0f b6 14 20 48 89 e8 83 e0 07 83 c0 [ 43.966478] RSP: 0018:ffff88801e8b7bf0 EFLAGS: 00010286 [ 43.967167] RAX: 0000000000000000 RBX: ffff88800ee79640 RCX: 0000000000000000 [ 43.968048] RDX: ffff888010148000 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 43.968939] RBP: ffff88800ee79654 R08: 0000000000000001 R09: 0000000000000000 [ 43.969840] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 43.970693] R13: ffffffff84e223a0 R14: ffff88800ee79648 R15: ffffffff84daf020 [ 43.971587] FS: 0000555555bca400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 43.972580] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 43.973322] CR2: 00007ffe4d0cefc8 CR3: 000000000e7e4000 CR4: 0000000000350ef0 [ 43.974222] Call Trace: [ 43.974553] [ 43.974887] nf_ct_net_init+0x224/0x3d0 [ 43.975408] ? __pfx_nf_ct_net_init+0x10/0x10 [ 43.976006] ops_init+0xbb/0x6b0 [ 43.976454] setup_net+0x3d9/0x990 [ 43.976936] ? down_read_killable+0x1d7/0x4e0 [ 43.977528] ? __pfx_setup_net+0x10/0x10 [ 43.978068] ? copy_net_ns+0x17c/0x770 [ 43.978574] copy_net_ns+0x321/0x770 [ 43.979083] create_new_namespaces+0x3f6/0xb30 [ 43.979675] unshare_nsproxy_namespaces+0xc1/0x200 [ 43.980319] ksys_unshare+0x44d/0x8e0 [ 43.980843] ? __pfx_ksys_unshare+0x10/0x10 [ 43.981403] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 43.982149] __x64_sys_unshare+0x31/0x40 [ 43.982668] do_syscall_64+0x3f/0x90 [ 43.983167] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 43.983840] RIP: 0033:0x7f0c9a81d0d7 [ 43.984303] 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 [ 43.986498] RSP: 002b:00007ffca0247d78 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 43.987446] RAX: ffffffffffffffda RBX: 00007ffca02483b8 RCX: 00007f0c9a81d0d7 [ 43.988334] RDX: 00007f0c9a88741f RSI: 00007ffca0247d10 RDI: 0000000040000000 [ 43.989229] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffca0247b20 [ 43.990120] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f0c9a92fbf0 [ 43.991018] R13: 00007ffca0247e50 R14: 0000000000000000 R15: 00000000000000f8 [ 43.991927] [ 43.992231] irq event stamp: 11441 [ 43.992664] hardirqs last enabled at (11451): [] __up_console_sem+0x78/0x80 [ 43.993755] hardirqs last disabled at (11462): [] __up_console_sem+0x5d/0x80 [ 43.994836] softirqs last enabled at (10978): [] irq_exit_rcu+0x93/0xc0 [ 43.995863] softirqs last disabled at (10973): [] irq_exit_rcu+0x93/0xc0 [ 43.996866] ---[ end trace 0000000000000000 ]--- executing program [ 45.484410] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 47.532391] Bluetooth: hci0: command 0x041b tx timeout [ 49.580892] Bluetooth: hci0: command 0x040f tx timeout executing program [ 51.628952] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 23:36:03 Registers: info registers vcpu 0 RAX=0000000000000036 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507685 RDI=ffffffff87f27c00 RBP=ffffffff87f27bc0 RSP=ffff88801e8b75f0 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000036 R11=0000000000000001 R12=0000000000000036 R13=ffffffff87f27bc0 R14=0000000000000010 R15=ffffffff82507670 RIP=ffffffff825076dd 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 0000555555bca400 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=00007ffe4d0cefc8 CR3=000000000e7e4000 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=0000000000023cb3 RBX=0000000000000001 RCX=ffffffff844c4a0e RDX=0000000000000000 RSI=0000000000000000 RDI=ffffffff81288625 RBP=dffffc0000000000 RSP=ffff888008dcfe68 R8 =0000000000000001 R9 =ffffed100d9e69f8 R10=ffff88806cf34fc3 R11=0000000000000001 R12=ffffffff85d34a10 R13=1ffff110011b9fd2 R14=0000000000000000 R15=0000000000000000 RIP=ffffffff844c599f 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=00007fd41ffbb290 CR3=000000000df60000 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=2033303a36333a33322036312079614d XMM01=5d3033343936382e33342020205b203a XMM02=646f4d205d3033343936382e33342020 XMM03=6b7a79732033303a36333a3332203631 XMM04=7379735f74656e5f7265747369676572 XMM05=732f74656e20746120393532203a4449 XMM06=57205d3536303836382e33342020205b XMM07=79732033303a36333a33322036312079 XMM08=7475636578652d7a7973223d6d6d6f63 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000