syzkaller login: [ 43.029288] sshd (217) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:41174' (ECDSA) to the list of known hosts. 2023/05/17 10:01:02 fuzzer started 2023/05/17 10:01:02 dialing manager at localhost:35573 2023/05/17 10:01:02 checking machine... 2023/05/17 10:01:02 checking revisions... [ 44.889660] kmemleak: Automatic memory scanning thread ended 2023/05/17 10:01:02 testing simple program... [ 44.945353] cgroup: Unknown subsys name 'net' [ 44.994285] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 58.338340] audit: type=1400 audit(1684317676.369:6): 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 [ 59.489803] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 59.491792] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 59.493525] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 59.496965] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 59.499259] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 59.500415] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 executing program [ 59.866414] ------------[ cut here ]------------ [ 59.867137] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 59.869084] WARNING: CPU: 1 PID: 260 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 59.870280] Modules linked in: [ 59.870696] CPU: 1 PID: 260 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 59.875572] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 59.876753] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 59.877570] 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 [ 59.880000] RSP: 0018:ffff8880147b7c00 EFLAGS: 00010282 [ 59.880689] RAX: 0000000000000000 RBX: ffff888015d91840 RCX: 0000000000000000 [ 59.881624] RDX: ffff88801ca63680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 59.882561] RBP: ffff888015d91854 R08: 0000000000000001 R09: 0000000000000000 [ 59.883493] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 59.884441] R13: ffffffff84e223a0 R14: ffff888015d91848 R15: ffffffff84d73340 [ 59.885374] FS: 0000555556827400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 59.886451] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.887252] CR2: 00007f8d4f0f96f4 CR3: 000000001fd94000 CR4: 0000000000350ee0 [ 59.888187] Call Trace: [ 59.888529] [ 59.888834] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 59.889496] ipv4_frags_init_net+0x269/0x440 [ 59.890142] ops_init+0xbb/0x6b0 [ 59.890608] setup_net+0x3d9/0x990 [ 59.891106] ? down_read_killable+0x1d7/0x4e0 [ 59.891702] ? __pfx_setup_net+0x10/0x10 [ 59.892263] ? copy_net_ns+0x17c/0x770 [ 59.892796] copy_net_ns+0x321/0x770 [ 59.893326] create_new_namespaces+0x3f6/0xb30 [ 59.893940] unshare_nsproxy_namespaces+0xc1/0x200 [ 59.894618] ksys_unshare+0x44d/0x8e0 [ 59.895165] ? __pfx_ksys_unshare+0x10/0x10 [ 59.895745] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 59.896522] __x64_sys_unshare+0x31/0x40 [ 59.897087] do_syscall_64+0x3f/0x90 [ 59.897585] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 59.898318] RIP: 0033:0x7fe7629b90d7 [ 59.898807] 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 [ 59.901136] RSP: 002b:00007fffc17b53d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 59.902138] RAX: ffffffffffffffda RBX: 00007fffc17b5a18 RCX: 00007fe7629b90d7 [ 59.903062] RDX: 00007fe762a2341f RSI: 00007fffc17b5370 RDI: 0000000040000000 [ 59.903969] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fffc17b5180 [ 59.904918] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fe762acbbf0 [ 59.905862] R13: 00007fffc17b54b0 R14: 0000000000000000 R15: 00000000000000f8 [ 59.906820] [ 59.907163] irq event stamp: 7825 [ 59.907613] hardirqs last enabled at (7835): [] __up_console_sem+0x78/0x80 [ 59.908729] hardirqs last disabled at (7846): [] __up_console_sem+0x5d/0x80 [ 59.909838] softirqs last enabled at (7732): [] irq_exit_rcu+0x93/0xc0 [ 59.910952] softirqs last disabled at (7727): [] irq_exit_rcu+0x93/0xc0 [ 59.912053] ---[ end trace 0000000000000000 ]--- [ 59.917583] ------------[ cut here ]------------ [ 59.919350] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 59.921438] WARNING: CPU: 0 PID: 260 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 59.922755] Modules linked in: [ 59.923310] CPU: 0 PID: 260 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 59.924652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 59.925883] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 59.926774] 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 [ 59.929172] RSP: 0018:ffff8880147b7c00 EFLAGS: 00010282 [ 59.929851] RAX: 0000000000000000 RBX: ffff8880101fb240 RCX: 0000000000000000 [ 59.930904] RDX: ffff88801ca63680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 59.931956] RBP: ffff8880101fb254 R08: 0000000000000001 R09: 0000000000000000 [ 59.933146] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 59.934209] R13: ffffffff84e223a0 R14: ffff8880101fb248 R15: ffffffff84da62e0 [ 59.935228] FS: 0000555556827400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 59.936421] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.937303] CR2: 00007f5e3f5a8ea0 CR3: 000000001fd94000 CR4: 0000000000350ef0 [ 59.938367] Call Trace: [ 59.938701] [ 59.939178] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 59.939807] ipv6_frags_init_net+0x206/0x3c0 [ 59.940574] ops_init+0xbb/0x6b0 [ 59.941199] setup_net+0x3d9/0x990 [ 59.941669] ? down_read_killable+0x1d7/0x4e0 [ 59.942451] ? __pfx_setup_net+0x10/0x10 [ 59.943137] ? copy_net_ns+0x17c/0x770 [ 59.943661] copy_net_ns+0x321/0x770 [ 59.944301] create_new_namespaces+0x3f6/0xb30 [ 59.944905] unshare_nsproxy_namespaces+0xc1/0x200 [ 59.945676] ksys_unshare+0x44d/0x8e0 [ 59.946418] ? __pfx_ksys_unshare+0x10/0x10 [ 59.947132] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 59.947862] __x64_sys_unshare+0x31/0x40 [ 59.948536] do_syscall_64+0x3f/0x90 [ 59.949183] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 59.949848] RIP: 0033:0x7fe7629b90d7 [ 59.950527] 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 [ 59.952859] RSP: 002b:00007fffc17b53d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 59.954032] RAX: ffffffffffffffda RBX: 00007fffc17b5a18 RCX: 00007fe7629b90d7 [ 59.954912] RDX: 00007fe762a2341f RSI: 00007fffc17b5370 RDI: 0000000040000000 [ 59.955952] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fffc17b5180 [ 59.957090] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fe762acbbf0 [ 59.957967] R13: 00007fffc17b54b0 R14: 0000000000000000 R15: 00000000000000f8 [ 59.958910] [ 59.959246] irq event stamp: 12529 [ 59.959695] hardirqs last enabled at (12539): [] __up_console_sem+0x78/0x80 [ 59.960781] hardirqs last disabled at (12550): [] __up_console_sem+0x5d/0x80 [ 59.961878] softirqs last enabled at (12490): [] irq_exit_rcu+0x93/0xc0 [ 59.962992] softirqs last disabled at (12461): [] irq_exit_rcu+0x93/0xc0 [ 59.964060] ---[ end trace 0000000000000000 ]--- [ 59.965449] ------------[ cut here ]------------ [ 59.966124] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 59.968164] WARNING: CPU: 0 PID: 260 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 59.969229] Modules linked in: [ 59.969643] CPU: 0 PID: 260 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 59.970848] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 59.971913] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 59.972617] 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 [ 59.974881] RSP: 0018:ffff8880147b7bf0 EFLAGS: 00010286 [ 59.975576] RAX: 0000000000000000 RBX: ffff888009873c40 RCX: 0000000000000000 [ 59.976453] RDX: ffff88801ca63680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 59.977332] RBP: ffff888009873c54 R08: 0000000000000001 R09: 0000000000000000 [ 59.978223] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 59.979114] R13: ffffffff84e223a0 R14: ffff888009873c48 R15: ffffffff84daf020 [ 59.980011] FS: 0000555556827400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 59.981035] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.981753] CR2: 00007f5e3f5a8ea0 CR3: 000000001fd94000 CR4: 0000000000350ef0 [ 59.982667] Call Trace: [ 59.983023] [ 59.983349] nf_ct_net_init+0x224/0x3d0 [ 59.983877] ? __pfx_nf_ct_net_init+0x10/0x10 [ 59.984471] ops_init+0xbb/0x6b0 [ 59.984916] setup_net+0x3d9/0x990 [ 59.985386] ? down_read_killable+0x1d7/0x4e0 [ 59.985939] ? __pfx_setup_net+0x10/0x10 [ 59.986500] ? copy_net_ns+0x17c/0x770 [ 59.987048] copy_net_ns+0x321/0x770 [ 59.987524] create_new_namespaces+0x3f6/0xb30 [ 59.988125] unshare_nsproxy_namespaces+0xc1/0x200 [ 59.988744] ksys_unshare+0x44d/0x8e0 [ 59.989262] ? __pfx_ksys_unshare+0x10/0x10 [ 59.989825] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 59.990597] __x64_sys_unshare+0x31/0x40 [ 59.991164] do_syscall_64+0x3f/0x90 [ 59.991655] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 59.992340] RIP: 0033:0x7fe7629b90d7 [ 59.992827] 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 [ 59.995067] RSP: 002b:00007fffc17b53d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 59.996048] RAX: ffffffffffffffda RBX: 00007fffc17b5a18 RCX: 00007fe7629b90d7 [ 59.996933] RDX: 00007fe762a2341f RSI: 00007fffc17b5370 RDI: 0000000040000000 [ 59.997842] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fffc17b5180 [ 59.998773] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fe762acbbf0 [ 59.999684] R13: 00007fffc17b54b0 R14: 0000000000000000 R15: 00000000000000f8 [ 60.000610] [ 60.000920] irq event stamp: 13395 [ 60.001398] hardirqs last enabled at (13407): [] __up_console_sem+0x78/0x80 [ 60.002496] hardirqs last disabled at (13418): [] __up_console_sem+0x5d/0x80 [ 60.003607] softirqs last enabled at (13182): [] irq_exit_rcu+0x93/0xc0 [ 60.004676] softirqs last disabled at (13175): [] irq_exit_rcu+0x93/0xc0 [ 60.005755] ---[ end trace 0000000000000000 ]--- [ 61.563448] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 63.611331] Bluetooth: hci0: command 0x041b tx timeout [ 65.659070] Bluetooth: hci0: command 0x040f tx timeout executing program [ 67.707104] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 10:01:17 Registers: info registers vcpu 0 RAX=000000000002407d 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=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=00007f5e3f6487f0 CR3=000000000cba0000 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=2037313a31303a30312037312079614d XMM01=5d3038323037382e39352020205b203a XMM02=646f4d205d3038323037382e39352020 XMM03=6b7a79732037313a31303a3031203731 XMM04=7379735f74656e5f7265747369676572 XMM05=732f74656e20746120303632203a4449 XMM06=57205d3438303936382e39352020205b XMM07=79732037313a31303a30312037312079 XMM08=7475636578652d7a7973223d6d6d6f63 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000000000020 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507685 RDI=ffffffff87f27c00 RBP=ffffffff87f27bc0 RSP=ffff8880147b75f0 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000020 R11=0000000000000001 R12=0000000000000020 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 0000555556827400 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=00007f8d4f0f96f4 CR3=000000001fd94000 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