syzkaller login: [ 39.854422] sshd (209) used greatest stack depth: 24016 bytes left Warning: Permanently added '[localhost]:27407' (ECDSA) to the list of known hosts. 2023/05/18 10:02:43 fuzzer started 2023/05/18 10:02:43 dialing manager at localhost:44319 2023/05/18 10:02:43 checking machine... 2023/05/18 10:02:43 checking revisions... [ 44.716678] kmemleak: Automatic memory scanning thread ended 2023/05/18 10:02:43 testing simple program... [ 44.785635] cgroup: Unknown subsys name 'net' [ 44.871441] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 57.218567] audit: type=1400 audit(1684404176.030:6): 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 [ 58.293176] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 58.294851] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 58.297116] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 58.300157] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 58.301974] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 58.303284] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 58.684038] ------------[ cut here ]------------ [ 58.685020] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 58.687152] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 58.688614] Modules linked in: [ 58.689440] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 58.692069] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 58.694635] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 58.695480] 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 [ 58.697684] RSP: 0018:ffff88801a207c00 EFLAGS: 00010282 [ 58.698372] RAX: 0000000000000000 RBX: ffff88800f05ac40 RCX: 0000000000000000 [ 58.699262] RDX: ffff88801807d1c0 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 58.700169] RBP: ffff88800f05ac54 R08: 0000000000000001 R09: 0000000000000000 [ 58.701074] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 58.701973] R13: ffffffff84e23fe0 R14: ffff88800f05ac48 R15: ffffffff84d74dc0 [ 58.702826] FS: 00005555570f6400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 58.703842] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.704627] CR2: 00007f4580d7c6f4 CR3: 000000000f158000 CR4: 0000000000350ef0 [ 58.705610] Call Trace: [ 58.705999] [ 58.706323] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 58.707032] ipv4_frags_init_net+0x269/0x440 [ 58.707655] ops_init+0xbb/0x6b0 [ 58.708152] setup_net+0x3d9/0x990 [ 58.708619] ? down_read_killable+0x1d7/0x4e0 [ 58.709238] ? __pfx_setup_net+0x10/0x10 [ 58.709761] ? copy_net_ns+0x17c/0x770 [ 58.710305] copy_net_ns+0x321/0x770 [ 58.710800] create_new_namespaces+0x3f6/0xb30 [ 58.711409] unshare_nsproxy_namespaces+0xc1/0x200 [ 58.712085] ksys_unshare+0x44d/0x8e0 [ 58.712573] ? __pfx_ksys_unshare+0x10/0x10 [ 58.713147] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 58.713878] __x64_sys_unshare+0x31/0x40 [ 58.714423] do_syscall_64+0x3f/0x90 [ 58.714931] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 58.715609] RIP: 0033:0x7f1b451a80d7 [ 58.716109] 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 [ 58.718264] RSP: 002b:00007fffc087ac48 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 58.719266] RAX: ffffffffffffffda RBX: 00007fffc087b288 RCX: 00007f1b451a80d7 [ 58.720262] RDX: 00007f1b4521241f RSI: 00007fffc087abe0 RDI: 0000000040000000 [ 58.721260] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fffc087a9f0 [ 58.722231] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f1b452babf0 [ 58.723243] R13: 00007fffc087ad20 R14: 0000000000000000 R15: 00000000000000f8 [ 58.724274] [ 58.724609] irq event stamp: 9537 [ 58.725115] hardirqs last enabled at (9549): [] __up_console_sem+0x78/0x80 [ 58.726286] hardirqs last disabled at (9560): [] __up_console_sem+0x5d/0x80 [ 58.727460] softirqs last enabled at (9094): [] irq_exit_rcu+0x93/0xc0 [ 58.728605] softirqs last disabled at (9079): [] irq_exit_rcu+0x93/0xc0 [ 58.729729] ---[ end trace 0000000000000000 ]--- [ 58.735182] ------------[ cut here ]------------ [ 58.735829] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 58.737663] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 58.738843] Modules linked in: [ 58.739296] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 58.740484] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 58.741518] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 58.742191] 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 [ 58.744425] RSP: 0018:ffff88801a207c00 EFLAGS: 00010282 [ 58.745122] RAX: 0000000000000000 RBX: ffff88800f689040 RCX: 0000000000000000 [ 58.746034] RDX: ffff88801807d1c0 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 58.746941] RBP: ffff88800f689054 R08: 0000000000000001 R09: 0000000000000000 [ 58.747818] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 58.748729] R13: ffffffff84e23fe0 R14: ffff88800f689048 R15: ffffffff84da7d60 [ 58.749632] FS: 00005555570f6400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 58.750648] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.751398] CR2: 00007f4580d7c6f4 CR3: 000000000f158000 CR4: 0000000000350ef0 [ 58.752300] Call Trace: [ 58.752637] [ 58.752973] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 58.753596] ipv6_frags_init_net+0x206/0x3c0 [ 58.754190] ops_init+0xbb/0x6b0 [ 58.754644] setup_net+0x3d9/0x990 [ 58.755130] ? down_read_killable+0x1d7/0x4e0 [ 58.755727] ? __pfx_setup_net+0x10/0x10 [ 58.756288] ? copy_net_ns+0x17c/0x770 [ 58.756808] copy_net_ns+0x321/0x770 [ 58.757327] create_new_namespaces+0x3f6/0xb30 [ 58.757946] unshare_nsproxy_namespaces+0xc1/0x200 [ 58.758552] ksys_unshare+0x44d/0x8e0 [ 58.759074] ? __pfx_ksys_unshare+0x10/0x10 [ 58.759632] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 58.760380] __x64_sys_unshare+0x31/0x40 [ 58.760929] do_syscall_64+0x3f/0x90 [ 58.761417] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 58.762089] RIP: 0033:0x7f1b451a80d7 [ 58.762564] 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 [ 58.764818] RSP: 002b:00007fffc087ac48 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 58.765797] RAX: ffffffffffffffda RBX: 00007fffc087b288 RCX: 00007f1b451a80d7 [ 58.766699] RDX: 00007f1b4521241f RSI: 00007fffc087abe0 RDI: 0000000040000000 [ 58.767601] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fffc087a9f0 [ 58.768505] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f1b452babf0 [ 58.769406] R13: 00007fffc087ad20 R14: 0000000000000000 R15: 00000000000000f8 [ 58.770318] [ 58.770624] irq event stamp: 11309 [ 58.771094] hardirqs last enabled at (11321): [] __up_console_sem+0x78/0x80 [ 58.772199] hardirqs last disabled at (11332): [] __up_console_sem+0x5d/0x80 [ 58.773287] softirqs last enabled at (10804): [] irq_exit_rcu+0x93/0xc0 [ 58.774340] softirqs last disabled at (10781): [] irq_exit_rcu+0x93/0xc0 [ 58.775397] ---[ end trace 0000000000000000 ]--- [ 58.776752] ------------[ cut here ]------------ [ 58.777386] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 58.779465] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 58.780536] Modules linked in: [ 58.780976] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 58.782124] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 58.783158] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 58.783826] 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 [ 58.786048] RSP: 0018:ffff88801a207bf0 EFLAGS: 00010286 [ 58.786712] RAX: 0000000000000000 RBX: ffff88800f688a40 RCX: 0000000000000000 [ 58.787640] RDX: ffff88801807d1c0 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 58.788547] RBP: ffff88800f688a54 R08: 0000000000000001 R09: 0000000000000000 [ 58.789456] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 58.790370] R13: ffffffff84e23fe0 R14: ffff88800f688a48 R15: ffffffff84db0aa0 [ 58.791279] FS: 00005555570f6400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 58.792308] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.793065] CR2: 00007f4580d7c6f4 CR3: 000000000f158000 CR4: 0000000000350ef0 [ 58.793977] Call Trace: [ 58.794306] [ 58.794606] nf_ct_net_init+0x224/0x3d0 [ 58.795166] ? __pfx_nf_ct_net_init+0x10/0x10 [ 58.795769] ops_init+0xbb/0x6b0 [ 58.796258] setup_net+0x3d9/0x990 [ 58.796714] ? down_read_killable+0x1d7/0x4e0 [ 58.797315] ? __pfx_setup_net+0x10/0x10 [ 58.797833] ? copy_net_ns+0x17c/0x770 [ 58.798379] copy_net_ns+0x321/0x770 [ 58.798872] create_new_namespaces+0x3f6/0xb30 [ 58.799505] unshare_nsproxy_namespaces+0xc1/0x200 [ 58.800160] ksys_unshare+0x44d/0x8e0 [ 58.800641] ? __pfx_ksys_unshare+0x10/0x10 [ 58.801226] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 58.801960] __x64_sys_unshare+0x31/0x40 [ 58.802466] do_syscall_64+0x3f/0x90 [ 58.802987] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 58.803663] RIP: 0033:0x7f1b451a80d7 [ 58.804166] 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 [ 58.806410] RSP: 002b:00007fffc087ac48 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 58.807375] RAX: ffffffffffffffda RBX: 00007fffc087b288 RCX: 00007f1b451a80d7 [ 58.808282] RDX: 00007f1b4521241f RSI: 00007fffc087abe0 RDI: 0000000040000000 [ 58.809196] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fffc087a9f0 [ 58.810076] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f1b452babf0 [ 58.810987] R13: 00007fffc087ad20 R14: 0000000000000000 R15: 00000000000000f8 [ 58.811930] [ 58.812234] irq event stamp: 12069 [ 58.812673] hardirqs last enabled at (12079): [] __up_console_sem+0x78/0x80 [ 58.813763] hardirqs last disabled at (12090): [] __up_console_sem+0x5d/0x80 [ 58.814859] softirqs last enabled at (11754): [] irq_exit_rcu+0x93/0xc0 [ 58.815964] softirqs last disabled at (11749): [] irq_exit_rcu+0x93/0xc0 [ 58.817014] ---[ end trace 0000000000000000 ]--- executing program [ 60.377607] Bluetooth: hci0: command 0x0409 tx timeout [ 62.425716] Bluetooth: hci0: command 0x041b tx timeout executing program [ 64.473134] Bluetooth: hci0: command 0x040f tx timeout executing program [ 66.521084] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 10:02:56 Registers: info registers vcpu 0 RAX=dffffc0000000005 RBX=00000000000003f9 RCX=0000000000000000 RDX=00000000000003f9 RSI=ffffffff82507ef0 RDI=ffffffff87f2dc00 RBP=ffffffff87f2dbc0 RSP=ffff88801a207620 R8 =0000000000000001 R9 =ffffed1003440eb5 R10=0000000000000003 R11=0000000000000001 R12=000000000000005f R13=ffffffff87f2dbc0 R14=ffffffff87f2dc10 R15=ffffffff87f2de78 RIP=ffffffff82507f45 RFL=00000006 [-----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 00005555570f6400 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=00007f4580d7c6f4 CR3=000000000f158000 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=00000000000c4031 RBX=0000000000000004 RCX=0000000000044000 RDX=1ffff110011b2b7a RSI=0000000000000000 RDI=ffff888008d95bd4 RBP=0000000000000001 RSP=ffff88806cf09c58 R8 =0000000000000001 R9 =00000000000c4000 R10=0000000000000000 R11=0000000000000001 R12=ffff888008d95bb0 R13=ffff888008d951c0 R14=ffff88806cf396d8 R15=0000000000000000 RIP=ffffffff812cfed5 RFL=00000006 [-----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 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=00007fe878b37288 CR3=000000000ec7e000 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=73625577ab71e686dd497b715d6599e5 XMM02=6b1e99b806172e3b00000000000aea28 XMM03=ac8bc31478ec851100000000000aefa0 XMM04=d35f14e95510c1f6000000000010e250 XMM05=d3fdd5f48436fbd700000000000aead0 XMM06=034bd1c0de0a2d3c00000000000ae988 XMM07=a1fcdcf819d7e1e500000000000ae728 XMM08=44495f474f4c5359530069253d595449 XMM09=00000000000000000000000000000000 XMM10=00000000000000000020000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000