syzkaller login: [ 40.948281] sshd (218) used greatest stack depth: 24032 bytes left Warning: Permanently added '[localhost]:37300' (ECDSA) to the list of known hosts. 2023/05/17 12:57:27 fuzzer started 2023/05/17 12:57:28 dialing manager at localhost:44319 2023/05/17 12:57:28 checking machine... 2023/05/17 12:57:28 checking revisions... [ 42.870854] kmemleak: Automatic memory scanning thread ended 2023/05/17 12:57:28 testing simple program... [ 42.938084] cgroup: Unknown subsys name 'net' [ 43.014232] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 55.650738] audit: type=1400 audit(1684328260.995:6): 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 [ 56.776016] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 56.778032] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 56.782164] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 56.784919] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 56.786799] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 56.788050] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 57.170747] ------------[ cut here ]------------ [ 57.171439] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 57.173079] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 57.174297] Modules linked in: [ 57.174936] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 57.179853] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 57.181034] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 57.181856] 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 [ 57.184135] RSP: 0018:ffff88801efa7c00 EFLAGS: 00010282 [ 57.184847] RAX: 0000000000000000 RBX: ffff88800f5ed840 RCX: 0000000000000000 [ 57.185764] RDX: ffff88800e8e9b40 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 57.186666] RBP: ffff88800f5ed854 R08: 0000000000000001 R09: 0000000000000000 [ 57.187569] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 57.188499] R13: ffffffff84e23fe0 R14: ffff88800f5ed848 R15: ffffffff84d74dc0 [ 57.189369] FS: 0000555556505400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 57.190423] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.191147] CR2: 00007f5f238036f4 CR3: 00000000097d4000 CR4: 0000000000350ef0 [ 57.192054] Call Trace: [ 57.192518] [ 57.192905] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 57.193735] ipv4_frags_init_net+0x269/0x440 [ 57.194491] ops_init+0xbb/0x6b0 [ 57.195060] setup_net+0x3d9/0x990 [ 57.195671] ? down_read_killable+0x1d7/0x4e0 [ 57.196441] ? __pfx_setup_net+0x10/0x10 [ 57.197101] ? copy_net_ns+0x17c/0x770 [ 57.197793] copy_net_ns+0x321/0x770 [ 57.198446] create_new_namespaces+0x3f6/0xb30 [ 57.199192] unshare_nsproxy_namespaces+0xc1/0x200 [ 57.200020] ksys_unshare+0x44d/0x8e0 [ 57.200683] ? __pfx_ksys_unshare+0x10/0x10 [ 57.201361] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 57.202300] __x64_sys_unshare+0x31/0x40 [ 57.202988] do_syscall_64+0x3f/0x90 [ 57.203635] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 57.204500] RIP: 0033:0x7f741ecf20d7 [ 57.205096] 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 [ 57.207327] RSP: 002b:00007fffa5b78248 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 57.208228] RAX: ffffffffffffffda RBX: 00007fffa5b78888 RCX: 00007f741ecf20d7 [ 57.209097] RDX: 00007f741ed5c41f RSI: 00007fffa5b781e0 RDI: 0000000040000000 [ 57.209939] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fffa5b77ff0 [ 57.210785] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f741ee04bf0 [ 57.211622] R13: 00007fffa5b78320 R14: 0000000000000000 R15: 00000000000000f8 [ 57.212489] [ 57.212774] irq event stamp: 10637 [ 57.213204] hardirqs last enabled at (10647): [] __up_console_sem+0x78/0x80 [ 57.214213] hardirqs last disabled at (10658): [] __up_console_sem+0x5d/0x80 [ 57.215240] softirqs last enabled at (10202): [] irq_exit_rcu+0x93/0xc0 [ 57.216305] softirqs last disabled at (10171): [] irq_exit_rcu+0x93/0xc0 [ 57.217402] ---[ end trace 0000000000000000 ]--- [ 57.222766] ------------[ cut here ]------------ [ 57.223356] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 57.225040] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 57.226142] Modules linked in: [ 57.226606] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 57.227765] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 57.228779] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 57.229477] 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 [ 57.231677] RSP: 0018:ffff88801efa7c00 EFLAGS: 00010282 [ 57.232329] RAX: 0000000000000000 RBX: ffff88800c6fde40 RCX: 0000000000000000 [ 57.233255] RDX: ffff88800e8e9b40 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 57.234144] RBP: ffff88800c6fde54 R08: 0000000000000001 R09: 0000000000000000 [ 57.235052] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 57.235934] R13: ffffffff84e23fe0 R14: ffff88800c6fde48 R15: ffffffff84da7d60 [ 57.236849] FS: 0000555556505400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 57.237894] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.238668] CR2: 00007f5f238036f4 CR3: 00000000097d4000 CR4: 0000000000350ef0 [ 57.239577] Call Trace: [ 57.239903] [ 57.240199] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 57.240867] ipv6_frags_init_net+0x206/0x3c0 [ 57.241491] ops_init+0xbb/0x6b0 [ 57.241948] setup_net+0x3d9/0x990 [ 57.242455] ? down_read_killable+0x1d7/0x4e0 [ 57.243023] ? __pfx_setup_net+0x10/0x10 [ 57.243573] ? copy_net_ns+0x17c/0x770 [ 57.244092] copy_net_ns+0x321/0x770 [ 57.244610] create_new_namespaces+0x3f6/0xb30 [ 57.245214] unshare_nsproxy_namespaces+0xc1/0x200 [ 57.245878] ksys_unshare+0x44d/0x8e0 [ 57.246423] ? __pfx_ksys_unshare+0x10/0x10 [ 57.246979] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 57.247729] __x64_sys_unshare+0x31/0x40 [ 57.248252] do_syscall_64+0x3f/0x90 [ 57.248767] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 57.249554] RIP: 0033:0x7f741ecf20d7 [ 57.250055] 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 [ 57.252265] RSP: 002b:00007fffa5b78248 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 57.253268] RAX: ffffffffffffffda RBX: 00007fffa5b78888 RCX: 00007f741ecf20d7 [ 57.254166] RDX: 00007f741ed5c41f RSI: 00007fffa5b781e0 RDI: 0000000040000000 [ 57.255055] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fffa5b77ff0 [ 57.255948] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f741ee04bf0 [ 57.256857] R13: 00007fffa5b78320 R14: 0000000000000000 R15: 00000000000000f8 [ 57.257789] [ 57.258088] irq event stamp: 12411 [ 57.258559] hardirqs last enabled at (12423): [] __up_console_sem+0x78/0x80 [ 57.259619] hardirqs last disabled at (12434): [] __up_console_sem+0x5d/0x80 [ 57.260689] softirqs last enabled at (12384): [] irq_exit_rcu+0x93/0xc0 [ 57.261756] softirqs last disabled at (12371): [] irq_exit_rcu+0x93/0xc0 [ 57.262797] ---[ end trace 0000000000000000 ]--- [ 57.264153] ------------[ cut here ]------------ [ 57.264776] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 57.266748] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 57.267812] Modules linked in: [ 57.268217] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 57.269421] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 57.270472] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 57.271123] 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 [ 57.273326] RSP: 0018:ffff88801efa7bf0 EFLAGS: 00010286 [ 57.274012] RAX: 0000000000000000 RBX: ffff88801450e240 RCX: 0000000000000000 [ 57.274917] RDX: ffff88800e8e9b40 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 57.275814] RBP: ffff88801450e254 R08: 0000000000000001 R09: 0000000000000000 [ 57.276706] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 57.277615] R13: ffffffff84e23fe0 R14: ffff88801450e248 R15: ffffffff84db0aa0 [ 57.278508] FS: 0000555556505400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 57.279525] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.280247] CR2: 00007f5f238036f4 CR3: 00000000097d4000 CR4: 0000000000350ef0 [ 57.281170] Call Trace: [ 57.281530] [ 57.281839] nf_ct_net_init+0x224/0x3d0 [ 57.282362] ? __pfx_nf_ct_net_init+0x10/0x10 [ 57.282996] ops_init+0xbb/0x6b0 [ 57.283486] setup_net+0x3d9/0x990 [ 57.283955] ? down_read_killable+0x1d7/0x4e0 [ 57.284562] ? __pfx_setup_net+0x10/0x10 [ 57.285099] ? copy_net_ns+0x17c/0x770 [ 57.285644] copy_net_ns+0x321/0x770 [ 57.286125] create_new_namespaces+0x3f6/0xb30 [ 57.286743] unshare_nsproxy_namespaces+0xc1/0x200 [ 57.287359] ksys_unshare+0x44d/0x8e0 [ 57.287885] ? __pfx_ksys_unshare+0x10/0x10 [ 57.288475] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 57.289213] __x64_sys_unshare+0x31/0x40 [ 57.289775] do_syscall_64+0x3f/0x90 [ 57.290264] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 57.290948] RIP: 0033:0x7f741ecf20d7 [ 57.291451] 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 [ 57.293652] RSP: 002b:00007fffa5b78248 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 57.294609] RAX: ffffffffffffffda RBX: 00007fffa5b78888 RCX: 00007f741ecf20d7 [ 57.295514] RDX: 00007f741ed5c41f RSI: 00007fffa5b781e0 RDI: 0000000040000000 [ 57.296411] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fffa5b77ff0 [ 57.297295] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f741ee04bf0 [ 57.298207] R13: 00007fffa5b78320 R14: 0000000000000000 R15: 00000000000000f8 [ 57.299131] [ 57.299472] irq event stamp: 13197 [ 57.299904] hardirqs last enabled at (13207): [] __up_console_sem+0x78/0x80 [ 57.300983] hardirqs last disabled at (13218): [] __up_console_sem+0x5d/0x80 [ 57.302050] softirqs last enabled at (12920): [] irq_exit_rcu+0x93/0xc0 [ 57.303096] softirqs last disabled at (12915): [] irq_exit_rcu+0x93/0xc0 [ 57.304128] ---[ end trace 0000000000000000 ]--- executing program [ 58.857049] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 60.904524] Bluetooth: hci0: command 0x041b tx timeout [ 62.952458] Bluetooth: hci0: command 0x040f tx timeout executing program [ 65.000458] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 12:57:39 Registers: info registers vcpu 0 RAX=0000000000000035 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507f85 RDI=ffffffff87f2dc00 RBP=ffffffff87f2dbc0 RSP=ffff88801efa75f0 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000035 R11=0000000000000001 R12=0000000000000035 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 0000555556505400 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=00007f5f238036f4 CR3=00000000097d4000 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=0000000000028db1 RBX=0000000000000001 RCX=ffffffff844d0a0e RDX=0000000000000000 RSI=0000000000000000 RDI=ffffffff81287415 RBP=dffffc0000000000 RSP=ffff888008dcfe70 R8 =0000000000000001 R9 =ffffed100d9e69f8 R10=ffff88806cf34fc3 R11=0000000000000001 R12=ffffffff85d35a10 R13=1ffff110011b9fd3 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 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=00007f377ca650a0 CR3=0000000015b9c000 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=2032343a37353a32312037312079614d XMM01=5d3633393437312e37352020205b203a XMM02=75636578652d7a7973203a6d6d6f4320 XMM03=20202020202020572020202020202020 XMM04=6e2d3263722d302e342e362020202020 XMM05=3a6465746e69615420302e726f747563 XMM06=32203a4449502030203a555043205d36 XMM07=6e72656b2072656c6c616b7a79732032 XMM08=7475636578652d7a7973223d6d6d6f63 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000