syzkaller login: [ 36.721648] sshd (218) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:8470' (ECDSA) to the list of known hosts. 2023/05/18 08:59:44 fuzzer started 2023/05/18 08:59:44 dialing manager at localhost:44319 2023/05/18 08:59:44 checking machine... 2023/05/18 08:59:44 checking revisions... [ 38.328559] kmemleak: Automatic memory scanning thread ended 2023/05/18 08:59:44 testing simple program... [ 38.383683] cgroup: Unknown subsys name 'net' [ 38.442127] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 51.206304] audit: type=1400 audit(1684400397.407:6): 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 [ 52.358888] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 52.360984] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 52.361849] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 52.364654] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 52.365652] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 52.367224] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 52.658313] ------------[ cut here ]------------ [ 52.658790] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 52.660010] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 52.660731] Modules linked in: [ 52.661031] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 52.662007] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 52.665171] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 52.665626] 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 [ 52.667351] RSP: 0018:ffff888016ee7c00 EFLAGS: 00010282 [ 52.667806] RAX: 0000000000000000 RBX: ffff88800f016840 RCX: 0000000000000000 [ 52.668478] RDX: ffff8880141bd1c0 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 52.669133] RBP: ffff88800f016854 R08: 0000000000000001 R09: 0000000000000000 [ 52.669715] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 52.670422] R13: ffffffff84e23fe0 R14: ffff88800f016848 R15: ffffffff84d74dc0 [ 52.671072] FS: 000055555564d400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 52.671743] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.672267] CR2: 00007f1dca544620 CR3: 000000000f6f4000 CR4: 0000000000350ee0 [ 52.672849] Call Trace: [ 52.673113] [ 52.673323] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 52.673757] ipv4_frags_init_net+0x269/0x440 [ 52.674226] ops_init+0xbb/0x6b0 [ 52.674540] setup_net+0x3d9/0x990 [ 52.674853] ? down_read_killable+0x1d7/0x4e0 [ 52.675279] ? __pfx_setup_net+0x10/0x10 [ 52.675630] ? copy_net_ns+0x17c/0x770 [ 52.676047] copy_net_ns+0x321/0x770 [ 52.676403] create_new_namespaces+0x3f6/0xb30 [ 52.676828] unshare_nsproxy_namespaces+0xc1/0x200 [ 52.677320] ksys_unshare+0x44d/0x8e0 [ 52.677659] ? __pfx_ksys_unshare+0x10/0x10 [ 52.678105] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 52.678592] __x64_sys_unshare+0x31/0x40 [ 52.678977] do_syscall_64+0x3f/0x90 [ 52.679304] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 52.679743] RIP: 0033:0x7ff2559e60d7 [ 52.680098] 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 [ 52.681630] RSP: 002b:00007ffc08351f08 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 52.682321] RAX: ffffffffffffffda RBX: 00007ffc08352548 RCX: 00007ff2559e60d7 [ 52.682917] RDX: 00007ff255a5041f RSI: 00007ffc08351ea0 RDI: 0000000040000000 [ 52.683538] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffc08351cb0 [ 52.684157] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ff255af8bf0 [ 52.684740] R13: 00007ffc08351fe0 R14: 0000000000000000 R15: 00000000000000f8 [ 52.685380] [ 52.685582] irq event stamp: 8523 [ 52.685894] hardirqs last enabled at (8533): [] __up_console_sem+0x78/0x80 [ 52.686712] hardirqs last disabled at (8554): [] __up_console_sem+0x5d/0x80 [ 52.687462] softirqs last enabled at (8546): [] irq_exit_rcu+0x93/0xc0 [ 52.688130] softirqs last disabled at (8537): [] irq_exit_rcu+0x93/0xc0 [ 52.688773] ---[ end trace 0000000000000000 ]--- [ 52.692903] ------------[ cut here ]------------ [ 52.693429] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 52.694556] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 52.695299] Modules linked in: [ 52.695575] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 52.696330] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 52.696978] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 52.697393] 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 [ 52.698857] RSP: 0018:ffff888016ee7c00 EFLAGS: 00010282 [ 52.699352] RAX: 0000000000000000 RBX: ffff88800d752c40 RCX: 0000000000000000 [ 52.699961] RDX: ffff8880141bd1c0 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 52.700522] RBP: ffff88800d752c54 R08: 0000000000000001 R09: 0000000000000000 [ 52.701101] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 52.701675] R13: ffffffff84e23fe0 R14: ffff88800d752c48 R15: ffffffff84da7d60 [ 52.702323] FS: 000055555564d400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 52.702985] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.703446] CR2: 00007f1dca544620 CR3: 000000000f6f4000 CR4: 0000000000350ee0 [ 52.704034] Call Trace: [ 52.704242] [ 52.704432] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 52.704828] ipv6_frags_init_net+0x206/0x3c0 [ 52.705234] ops_init+0xbb/0x6b0 [ 52.705514] setup_net+0x3d9/0x990 [ 52.705817] ? down_read_killable+0x1d7/0x4e0 [ 52.706245] ? __pfx_setup_net+0x10/0x10 [ 52.706562] ? copy_net_ns+0x17c/0x770 [ 52.706882] copy_net_ns+0x321/0x770 [ 52.707229] create_new_namespaces+0x3f6/0xb30 [ 52.707617] unshare_nsproxy_namespaces+0xc1/0x200 [ 52.708036] ksys_unshare+0x44d/0x8e0 [ 52.708368] ? __pfx_ksys_unshare+0x10/0x10 [ 52.708710] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 52.709190] __x64_sys_unshare+0x31/0x40 [ 52.709525] do_syscall_64+0x3f/0x90 [ 52.709846] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 52.710333] RIP: 0033:0x7ff2559e60d7 [ 52.710629] 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 [ 52.712088] RSP: 002b:00007ffc08351f08 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 52.712667] RAX: ffffffffffffffda RBX: 00007ffc08352548 RCX: 00007ff2559e60d7 [ 52.713247] RDX: 00007ff255a5041f RSI: 00007ffc08351ea0 RDI: 0000000040000000 [ 52.713816] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffc08351cb0 [ 52.714429] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ff255af8bf0 [ 52.715001] R13: 00007ffc08351fe0 R14: 0000000000000000 R15: 00000000000000f8 [ 52.715565] [ 52.715753] irq event stamp: 10323 [ 52.716056] hardirqs last enabled at (10335): [] __up_console_sem+0x78/0x80 [ 52.716764] hardirqs last disabled at (10344): [] __up_console_sem+0x5d/0x80 [ 52.717478] softirqs last enabled at (10286): [] irq_exit_rcu+0x93/0xc0 [ 52.718213] softirqs last disabled at (10281): [] irq_exit_rcu+0x93/0xc0 [ 52.718862] ---[ end trace 0000000000000000 ]--- [ 52.719893] ------------[ cut here ]------------ [ 52.720293] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 52.721472] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 52.722193] Modules linked in: [ 52.722449] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 52.723224] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 52.723852] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 52.724297] 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 [ 52.725693] RSP: 0018:ffff888016ee7bf0 EFLAGS: 00010286 [ 52.726169] RAX: 0000000000000000 RBX: ffff88800d753e40 RCX: 0000000000000000 [ 52.726716] RDX: ffff8880141bd1c0 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 52.727293] RBP: ffff88800d753e54 R08: 0000000000000001 R09: 0000000000000000 [ 52.727838] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 52.728412] R13: ffffffff84e23fe0 R14: ffff88800d753e48 R15: ffffffff84db0aa0 [ 52.728986] FS: 000055555564d400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 52.729606] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.730134] CR2: 00007f1dca544620 CR3: 000000000f6f4000 CR4: 0000000000350ee0 [ 52.730689] Call Trace: [ 52.730901] [ 52.731124] nf_ct_net_init+0x224/0x3d0 [ 52.731475] ? __pfx_nf_ct_net_init+0x10/0x10 [ 52.731863] ops_init+0xbb/0x6b0 [ 52.732236] setup_net+0x3d9/0x990 [ 52.732553] ? down_read_killable+0x1d7/0x4e0 [ 52.732974] ? __pfx_setup_net+0x10/0x10 [ 52.733332] ? copy_net_ns+0x17c/0x770 [ 52.733692] copy_net_ns+0x321/0x770 [ 52.734076] create_new_namespaces+0x3f6/0xb30 [ 52.734489] unshare_nsproxy_namespaces+0xc1/0x200 [ 52.734891] ksys_unshare+0x44d/0x8e0 [ 52.735241] ? __pfx_ksys_unshare+0x10/0x10 [ 52.735583] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 52.736044] __x64_sys_unshare+0x31/0x40 [ 52.736366] do_syscall_64+0x3f/0x90 [ 52.736677] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 52.737178] RIP: 0033:0x7ff2559e60d7 [ 52.737496] 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 [ 52.738991] RSP: 002b:00007ffc08351f08 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 52.739579] RAX: ffffffffffffffda RBX: 00007ffc08352548 RCX: 00007ff2559e60d7 [ 52.740142] RDX: 00007ff255a5041f RSI: 00007ffc08351ea0 RDI: 0000000040000000 [ 52.740683] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffc08351cb0 [ 52.741259] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ff255af8bf0 [ 52.741795] R13: 00007ffc08351fe0 R14: 0000000000000000 R15: 00000000000000f8 [ 52.742406] [ 52.742596] irq event stamp: 11035 [ 52.742866] hardirqs last enabled at (11045): [] __up_console_sem+0x78/0x80 [ 52.743539] hardirqs last disabled at (11056): [] __up_console_sem+0x5d/0x80 [ 52.744223] softirqs last enabled at (10286): [] irq_exit_rcu+0x93/0xc0 [ 52.744859] softirqs last disabled at (10281): [] irq_exit_rcu+0x93/0xc0 [ 52.745521] ---[ end trace 0000000000000000 ]--- executing program [ 54.382608] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 56.430092] Bluetooth: hci0: command 0x041b tx timeout [ 58.478027] Bluetooth: hci0: command 0x040f tx timeout executing program [ 60.526032] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 08:59:55 Registers: info registers vcpu 0 RAX=0000000000027563 RBX=0000000000000000 RCX=ffffffff844d0a0e RDX=0000000000000000 RSI=0000000000000000 RDI=ffffffff81287415 RBP=dffffc0000000000 RSP=ffffffff85407e10 R8 =0000000000000001 R9 =ffffed100d9c69f8 R10=ffff88806ce34fc3 R11=0000000000000001 R12=ffffffff85d35a10 R13=1ffffffff0a80fc7 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 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=00007fd2deef56f4 CR3=0000000005482000 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=00007fd2def0447000007fd2def03f20 XMM02=00000000000000000000000000000000 XMM03=756e20796d6d756420736e6f6974706f XMM04=2f2f2f2f2f2f2f2f2f2f2f2f2f2f2f2f XMM05=00000000000000000000000000000000 XMM06=00000000000000000000000000000000 XMM07=00000000000000000000000000000000 XMM08=73253d656d616e6c6165722073253d73 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000000000036 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507f85 RDI=ffffffff87f2dc00 RBP=ffffffff87f2dbc0 RSP=ffff888016ee7618 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000036 R11=0000000000000001 R12=0000000000000036 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 000055555564d400 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=00007f1dca544620 CR3=000000000f6f4000 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