syzkaller login: [ 36.845852] sshd (227) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:13827' (ECDSA) to the list of known hosts. 2023/05/16 11:32:58 fuzzer started 2023/05/16 11:32:59 dialing manager at localhost:35573 2023/05/16 11:32:59 checking machine... 2023/05/16 11:32:59 checking revisions... [ 38.153389] kmemleak: Automatic memory scanning thread ended 2023/05/16 11:32:59 testing simple program... [ 38.228102] cgroup: Unknown subsys name 'net' [ 38.320973] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 52.140400] audit: type=1400 audit(1684236793.425:6): 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 executing program [ 53.222420] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 53.224029] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 53.226983] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 53.230748] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 53.233555] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 53.234709] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 53.648031] ------------[ cut here ]------------ [ 53.648722] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 53.650983] WARNING: CPU: 1 PID: 260 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 53.652246] Modules linked in: [ 53.652684] CPU: 1 PID: 260 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 53.657749] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 53.658938] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 53.659743] 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 [ 53.662185] RSP: 0018:ffff88801e91fc00 EFLAGS: 00010282 [ 53.662909] RAX: 0000000000000000 RBX: ffff88800ea1d040 RCX: 0000000000000000 [ 53.663950] RDX: ffff888016003680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 53.664983] RBP: ffff88800ea1d054 R08: 0000000000000001 R09: 0000000000000000 [ 53.666015] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 53.667181] R13: ffffffff84e223a0 R14: ffff88800ea1d048 R15: ffffffff84d73340 [ 53.668237] FS: 0000555557061400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 53.669400] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.670294] CR2: 00007f233f1546f4 CR3: 000000001f544000 CR4: 0000000000350ee0 [ 53.671349] Call Trace: [ 53.671694] [ 53.672011] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 53.672720] ipv4_frags_init_net+0x269/0x440 [ 53.673343] ops_init+0xbb/0x6b0 [ 53.673816] setup_net+0x3d9/0x990 [ 53.674356] ? down_read_killable+0x1d7/0x4e0 [ 53.674960] ? __pfx_setup_net+0x10/0x10 [ 53.675529] ? copy_net_ns+0x17c/0x770 [ 53.676096] copy_net_ns+0x321/0x770 [ 53.676604] create_new_namespaces+0x3f6/0xb30 [ 53.677263] unshare_nsproxy_namespaces+0xc1/0x200 [ 53.677922] ksys_unshare+0x44d/0x8e0 [ 53.678489] ? __pfx_ksys_unshare+0x10/0x10 [ 53.679107] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 53.679866] __x64_sys_unshare+0x31/0x40 [ 53.680461] do_syscall_64+0x3f/0x90 [ 53.680964] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 53.681697] RIP: 0033:0x7f7a52afc0d7 [ 53.682262] 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 [ 53.684642] RSP: 002b:00007ffde41a3108 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 53.685676] RAX: ffffffffffffffda RBX: 00007ffde41a3748 RCX: 00007f7a52afc0d7 [ 53.686645] RDX: 00007f7a52b6641f RSI: 00007ffde41a30a0 RDI: 0000000040000000 [ 53.687610] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffde41a2eb0 [ 53.688573] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f7a52c0ebf0 [ 53.689535] R13: 00007ffde41a31e0 R14: 0000000000000000 R15: 00000000000000f8 [ 53.690525] [ 53.690848] irq event stamp: 9379 [ 53.691334] hardirqs last enabled at (9391): [] __up_console_sem+0x78/0x80 [ 53.692486] hardirqs last disabled at (9408): [] __up_console_sem+0x5d/0x80 [ 53.693674] softirqs last enabled at (9404): [] irq_exit_rcu+0x93/0xc0 [ 53.694840] softirqs last disabled at (9399): [] irq_exit_rcu+0x93/0xc0 [ 53.695983] ---[ end trace 0000000000000000 ]--- [ 53.702413] ------------[ cut here ]------------ [ 53.703235] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 53.705246] WARNING: CPU: 1 PID: 260 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 53.706438] Modules linked in: [ 53.706887] CPU: 1 PID: 260 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 53.708183] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 53.709312] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 53.710018] 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 [ 53.712460] RSP: 0018:ffff88801e91fc00 EFLAGS: 00010282 [ 53.713222] RAX: 0000000000000000 RBX: ffff888009984840 RCX: 0000000000000000 [ 53.714241] RDX: ffff888016003680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 53.715245] RBP: ffff888009984854 R08: 0000000000000001 R09: 0000000000000000 [ 53.716235] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 53.717222] R13: ffffffff84e223a0 R14: ffff888009984848 R15: ffffffff84da62e0 [ 53.718230] FS: 0000555557061400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 53.719346] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.720172] CR2: 00007f233f1546f4 CR3: 000000001f544000 CR4: 0000000000350ee0 [ 53.721150] Call Trace: [ 53.721508] [ 53.721833] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 53.722567] ipv6_frags_init_net+0x206/0x3c0 [ 53.723225] ops_init+0xbb/0x6b0 [ 53.723713] setup_net+0x3d9/0x990 [ 53.724263] ? down_read_killable+0x1d7/0x4e0 [ 53.724887] ? __pfx_setup_net+0x10/0x10 [ 53.725488] ? copy_net_ns+0x17c/0x770 [ 53.726049] copy_net_ns+0x321/0x770 [ 53.726638] create_new_namespaces+0x3f6/0xb30 [ 53.727328] unshare_nsproxy_namespaces+0xc1/0x200 [ 53.728013] ksys_unshare+0x44d/0x8e0 [ 53.728598] ? __pfx_ksys_unshare+0x10/0x10 [ 53.729253] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 53.730085] __x64_sys_unshare+0x31/0x40 [ 53.730673] do_syscall_64+0x3f/0x90 [ 53.731230] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 53.731942] RIP: 0033:0x7f7a52afc0d7 [ 53.732502] 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 [ 53.734925] RSP: 002b:00007ffde41a3108 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 53.735990] RAX: ffffffffffffffda RBX: 00007ffde41a3748 RCX: 00007f7a52afc0d7 [ 53.736976] RDX: 00007f7a52b6641f RSI: 00007ffde41a30a0 RDI: 0000000040000000 [ 53.737973] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffde41a2eb0 [ 53.738984] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f7a52c0ebf0 [ 53.739966] R13: 00007ffde41a31e0 R14: 0000000000000000 R15: 00000000000000f8 [ 53.740969] [ 53.741334] irq event stamp: 11353 [ 53.741809] hardirqs last enabled at (11363): [] __up_console_sem+0x78/0x80 [ 53.743007] hardirqs last disabled at (11374): [] __up_console_sem+0x5d/0x80 [ 53.744198] softirqs last enabled at (11078): [] irq_exit_rcu+0x93/0xc0 [ 53.745345] softirqs last disabled at (11073): [] irq_exit_rcu+0x93/0xc0 [ 53.746510] ---[ end trace 0000000000000000 ]--- [ 53.747948] ------------[ cut here ]------------ [ 53.748640] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 53.750750] WARNING: CPU: 1 PID: 260 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 53.751927] Modules linked in: [ 53.752412] CPU: 1 PID: 260 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 53.753688] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 53.754820] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 53.755560] 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 [ 53.757973] RSP: 0018:ffff88801e91fbf0 EFLAGS: 00010286 [ 53.758739] RAX: 0000000000000000 RBX: ffff888009a30840 RCX: 0000000000000000 [ 53.759732] RDX: ffff888016003680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 53.760722] RBP: ffff888009a30854 R08: 0000000000000001 R09: 0000000000000000 [ 53.761702] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 53.762708] R13: ffffffff84e223a0 R14: ffff888009a30848 R15: ffffffff84daf020 [ 53.763700] FS: 0000555557061400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 53.764805] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.765630] CR2: 00007f233f1546f4 CR3: 000000001f544000 CR4: 0000000000350ee0 [ 53.766623] Call Trace: [ 53.766983] [ 53.767343] nf_ct_net_init+0x224/0x3d0 [ 53.767910] ? __pfx_nf_ct_net_init+0x10/0x10 [ 53.768585] ops_init+0xbb/0x6b0 [ 53.769110] setup_net+0x3d9/0x990 [ 53.769605] ? down_read_killable+0x1d7/0x4e0 [ 53.770279] ? __pfx_setup_net+0x10/0x10 [ 53.770843] ? copy_net_ns+0x17c/0x770 [ 53.771445] copy_net_ns+0x321/0x770 [ 53.771979] create_new_namespaces+0x3f6/0xb30 [ 53.772668] unshare_nsproxy_namespaces+0xc1/0x200 [ 53.773377] ksys_unshare+0x44d/0x8e0 [ 53.773918] ? __pfx_ksys_unshare+0x10/0x10 [ 53.774595] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 53.775416] __x64_sys_unshare+0x31/0x40 [ 53.775987] do_syscall_64+0x3f/0x90 [ 53.776552] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 53.777293] RIP: 0033:0x7f7a52afc0d7 [ 53.777804] 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 [ 53.780213] RSP: 002b:00007ffde41a3108 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 53.781258] RAX: ffffffffffffffda RBX: 00007ffde41a3748 RCX: 00007f7a52afc0d7 [ 53.782278] RDX: 00007f7a52b6641f RSI: 00007ffde41a30a0 RDI: 0000000040000000 [ 53.783269] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffde41a2eb0 [ 53.784255] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f7a52c0ebf0 [ 53.785232] R13: 00007ffde41a31e0 R14: 0000000000000000 R15: 00000000000000f8 [ 53.786264] [ 53.786597] irq event stamp: 12107 [ 53.787113] hardirqs last enabled at (12119): [] __up_console_sem+0x78/0x80 [ 53.788298] hardirqs last disabled at (12130): [] __up_console_sem+0x5d/0x80 [ 53.789483] softirqs last enabled at (12092): [] irq_exit_rcu+0x93/0xc0 [ 53.790628] softirqs last disabled at (12087): [] irq_exit_rcu+0x93/0xc0 [ 53.791772] ---[ end trace 0000000000000000 ]--- [ 55.308712] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 57.356162] Bluetooth: hci0: command 0x041b tx timeout executing program [ 59.405133] Bluetooth: hci0: command 0x040f tx timeout [ 61.452136] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 11:33:13 Registers: info registers vcpu 0 RAX=000000000001d813 RBX=0000000000000000 RCX=ffffffff844c4a0e RDX=0000000000000000 RSI=0000000000000000 RDI=ffffffff81288625 RBP=dffffc0000000000 RSP=ffffffff85407e10 R8 =0000000000000001 R9 =ffffed100d9c69f8 R10=ffff88806ce34fc3 R11=0000000000000001 R12=ffffffff85d34a10 R13=1ffffffff0a80fc7 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 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=00007f2568f25ad0 CR3=000000000e83c000 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=2034313a33333a31312036312079614d XMM01=5d3438363235362e33352020205b203a XMM02=75636578652d7a7973203a6d6d6f4320 XMM03=20202020202020572020202020202020 XMM04=6e2d3263722d302e342e362020202020 XMM05=3a6465746e69615420302e726f747563 XMM06=32203a4449502031203a555043205d34 XMM07=6e72656b2072656c6c616b7a79732034 XMM08=65636f72703d7373616c63742030733a XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000000000034 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507685 RDI=ffffffff87f27c00 RBP=ffffffff87f27bc0 RSP=ffff88801e91f5f0 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000034 R11=0000000000000001 R12=0000000000000034 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 0000555557061400 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=00007f233f1546f4 CR3=000000001f544000 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