syzkaller login: [ 34.603315] sshd (217) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:41137' (ECDSA) to the list of known hosts. 2023/05/17 15:58:18 fuzzer started 2023/05/17 15:58:18 dialing manager at localhost:44319 2023/05/17 15:58:18 checking machine... 2023/05/17 15:58:18 checking revisions... [ 36.722428] kmemleak: Automatic memory scanning thread ended 2023/05/17 15:58:18 testing simple program... [ 36.794408] cgroup: Unknown subsys name 'net' [ 36.881032] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 49.314756] audit: type=1400 audit(1684339111.301:6): avc: denied { execmem } for pid=257 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 50.428982] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 50.431721] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 50.433493] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 50.436365] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 50.438026] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 50.439690] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 50.910165] ------------[ cut here ]------------ [ 50.910925] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 50.912833] WARNING: CPU: 0 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 50.914124] Modules linked in: [ 50.914629] CPU: 0 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 50.919415] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 50.920596] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 50.921396] 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 [ 50.923966] RSP: 0018:ffff888016bffc00 EFLAGS: 00010282 [ 50.924771] RAX: 0000000000000000 RBX: ffff88801309bc40 RCX: 0000000000000000 [ 50.925796] RDX: ffff88801792d1c0 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 50.926836] RBP: ffff88801309bc54 R08: 0000000000000001 R09: 0000000000000000 [ 50.927817] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 50.928815] R13: ffffffff84e23fe0 R14: ffff88801309bc48 R15: ffffffff84d74dc0 [ 50.929806] FS: 0000555556074400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 50.930926] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.931761] CR2: 00007f49834536f4 CR3: 000000000fce4000 CR4: 0000000000350ef0 [ 50.932754] Call Trace: [ 50.933146] [ 50.933477] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 50.934210] ipv4_frags_init_net+0x269/0x440 [ 50.934832] ops_init+0xbb/0x6b0 [ 50.935365] setup_net+0x3d9/0x990 [ 50.935877] ? down_read_killable+0x1d7/0x4e0 [ 50.936571] ? __pfx_setup_net+0x10/0x10 [ 50.937205] ? copy_net_ns+0x17c/0x770 [ 50.937797] copy_net_ns+0x321/0x770 [ 50.938397] create_new_namespaces+0x3f6/0xb30 [ 50.939072] unshare_nsproxy_namespaces+0xc1/0x200 [ 50.939813] ksys_unshare+0x44d/0x8e0 [ 50.940407] ? __pfx_ksys_unshare+0x10/0x10 [ 50.941034] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 50.941892] __x64_sys_unshare+0x31/0x40 [ 50.942538] do_syscall_64+0x3f/0x90 [ 50.943094] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 50.943885] RIP: 0033:0x7f0aea04f0d7 [ 50.944457] 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 [ 50.946994] RSP: 002b:00007ffd56006be8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 50.948090] RAX: ffffffffffffffda RBX: 00007ffd56007228 RCX: 00007f0aea04f0d7 [ 50.949135] RDX: 00007f0aea0b941f RSI: 00007ffd56006b80 RDI: 0000000040000000 [ 50.950100] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd56006990 [ 50.951143] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f0aea161bf0 [ 50.952164] R13: 00007ffd56006cc0 R14: 0000000000000000 R15: 00000000000000f8 [ 50.953190] [ 50.953527] irq event stamp: 8543 [ 50.954008] hardirqs last enabled at (8553): [] __up_console_sem+0x78/0x80 [ 50.955237] hardirqs last disabled at (8564): [] __up_console_sem+0x5d/0x80 [ 50.956460] softirqs last enabled at (8300): [] irq_exit_rcu+0x93/0xc0 [ 50.957652] softirqs last disabled at (8295): [] irq_exit_rcu+0x93/0xc0 [ 50.958855] ---[ end trace 0000000000000000 ]--- [ 50.966646] ------------[ cut here ]------------ [ 50.967334] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 50.969233] WARNING: CPU: 0 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 50.970459] Modules linked in: [ 50.970912] CPU: 0 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 50.972158] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 50.973239] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 50.973932] 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 [ 50.976263] RSP: 0018:ffff888016bffc00 EFLAGS: 00010282 [ 50.976969] RAX: 0000000000000000 RBX: ffff888013a27c40 RCX: 0000000000000000 [ 50.977936] RDX: ffff88801792d1c0 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 50.978923] RBP: ffff888013a27c54 R08: 0000000000000001 R09: 0000000000000000 [ 50.980011] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 50.981021] R13: ffffffff84e23fe0 R14: ffff888013a27c48 R15: ffffffff84da7d60 [ 50.982048] FS: 0000555556074400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 50.983180] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.983984] CR2: 00007f49834536f4 CR3: 000000000fce4000 CR4: 0000000000350ef0 [ 50.984965] Call Trace: [ 50.985356] [ 50.985689] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 50.986433] ipv6_frags_init_net+0x206/0x3c0 [ 50.987071] ops_init+0xbb/0x6b0 [ 50.987614] setup_net+0x3d9/0x990 [ 50.988159] ? down_read_killable+0x1d7/0x4e0 [ 50.988794] ? __pfx_setup_net+0x10/0x10 [ 50.989410] ? copy_net_ns+0x17c/0x770 [ 50.989975] copy_net_ns+0x321/0x770 [ 50.990568] create_new_namespaces+0x3f6/0xb30 [ 50.991271] unshare_nsproxy_namespaces+0xc1/0x200 [ 50.991970] ksys_unshare+0x44d/0x8e0 [ 50.992557] ? __pfx_ksys_unshare+0x10/0x10 [ 50.993205] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 50.994002] __x64_sys_unshare+0x31/0x40 [ 50.994619] do_syscall_64+0x3f/0x90 [ 50.995185] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 50.995904] RIP: 0033:0x7f0aea04f0d7 [ 50.996469] 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 [ 50.998878] RSP: 002b:00007ffd56006be8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 50.999934] RAX: ffffffffffffffda RBX: 00007ffd56007228 RCX: 00007f0aea04f0d7 [ 51.000926] RDX: 00007f0aea0b941f RSI: 00007ffd56006b80 RDI: 0000000040000000 [ 51.001917] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd56006990 [ 51.002899] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f0aea161bf0 [ 51.003884] R13: 00007ffd56006cc0 R14: 0000000000000000 R15: 00000000000000f8 [ 51.004891] [ 51.005265] irq event stamp: 12387 [ 51.005753] hardirqs last enabled at (12397): [] __up_console_sem+0x78/0x80 [ 51.006938] hardirqs last disabled at (12408): [] __up_console_sem+0x5d/0x80 [ 51.008139] softirqs last enabled at (12310): [] irq_exit_rcu+0x93/0xc0 [ 51.009284] softirqs last disabled at (12305): [] irq_exit_rcu+0x93/0xc0 [ 51.010461] ---[ end trace 0000000000000000 ]--- [ 51.011963] ------------[ cut here ]------------ [ 51.012657] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 51.014711] WARNING: CPU: 0 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 51.015877] Modules linked in: [ 51.016367] CPU: 0 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 51.017707] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 51.018940] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 51.019735] 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 [ 51.022335] RSP: 0018:ffff888016bffbf0 EFLAGS: 00010286 [ 51.023091] RAX: 0000000000000000 RBX: ffff8880144f2240 RCX: 0000000000000000 [ 51.024157] RDX: ffff88801792d1c0 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 51.025183] RBP: ffff8880144f2254 R08: 0000000000000001 R09: 0000000000000000 [ 51.026224] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 51.027261] R13: ffffffff84e23fe0 R14: ffff8880144f2248 R15: ffffffff84db0aa0 [ 51.028282] FS: 0000555556074400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 51.029459] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.030321] CR2: 00007f49834536f4 CR3: 000000000fce4000 CR4: 0000000000350ef0 [ 51.031364] Call Trace: [ 51.031762] [ 51.032175] nf_ct_net_init+0x224/0x3d0 [ 51.032793] ? __pfx_nf_ct_net_init+0x10/0x10 [ 51.033506] ops_init+0xbb/0x6b0 [ 51.034023] setup_net+0x3d9/0x990 [ 51.034593] ? down_read_killable+0x1d7/0x4e0 [ 51.035304] ? __pfx_setup_net+0x10/0x10 [ 51.035888] ? copy_net_ns+0x17c/0x770 [ 51.036511] copy_net_ns+0x321/0x770 [ 51.037078] create_new_namespaces+0x3f6/0xb30 [ 51.037768] unshare_nsproxy_namespaces+0xc1/0x200 [ 51.038566] ksys_unshare+0x44d/0x8e0 [ 51.039260] ? __pfx_ksys_unshare+0x10/0x10 [ 51.039965] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 51.040986] __x64_sys_unshare+0x31/0x40 [ 51.041754] do_syscall_64+0x3f/0x90 [ 51.042396] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 51.043168] RIP: 0033:0x7f0aea04f0d7 [ 51.043689] 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 [ 51.046242] RSP: 002b:00007ffd56006be8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 51.047425] RAX: ffffffffffffffda RBX: 00007ffd56007228 RCX: 00007f0aea04f0d7 [ 51.048582] RDX: 00007f0aea0b941f RSI: 00007ffd56006b80 RDI: 0000000040000000 [ 51.049707] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd56006990 [ 51.050894] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f0aea161bf0 [ 51.052010] R13: 00007ffd56006cc0 R14: 0000000000000000 R15: 00000000000000f8 [ 51.053189] [ 51.053575] irq event stamp: 13225 [ 51.054174] hardirqs last enabled at (13237): [] __up_console_sem+0x78/0x80 [ 51.055553] hardirqs last disabled at (13248): [] __up_console_sem+0x5d/0x80 [ 51.056843] softirqs last enabled at (12984): [] irq_exit_rcu+0x93/0xc0 [ 51.058056] softirqs last disabled at (12975): [] irq_exit_rcu+0x93/0xc0 [ 51.059438] ---[ end trace 0000000000000000 ]--- executing program [ 52.518312] Bluetooth: hci0: command 0x0409 tx timeout [ 54.563285] Bluetooth: hci0: command 0x041b tx timeout executing program [ 56.611242] Bluetooth: hci0: command 0x040f tx timeout executing program [ 58.659201] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 15:58:32 Registers: info registers vcpu 0 RAX=0000000000000020 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507f85 RDI=ffffffff87f2dc00 RBP=ffffffff87f2dbc0 RSP=ffff888016bff5f0 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000020 R11=0000000000000001 R12=0000000000000020 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 0000555556074400 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=00007f49834536f4 CR3=000000000fce4000 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=0000000000000515 RBX=0000000000000620 RCX=00007f652ed9fb80 RDX=0000000000000001 RSI=00007f6528007f50 RDI=00007f6528000020 RBP=00007f6528007e40 RSP=00007f652e04d620 R8 =00007f6524001368 R9 =0000000000000000 R10=0000000000000009 R11=0000000000000000 R12=00007f6528000020 R13=0000000000000001 R14=00007f6528008460 R15=0000000000000004 RIP=00007f652ec67943 RFL=00000202 [-------] CPL=3 II=0 A20=1 SMM=0 HLT=0 ES =0000 0000000000000000 00000000 00000000 CS =0033 0000000000000000 ffffffff 00a0fb00 DPL=3 CS64 [-RA] SS =002b 0000000000000000 ffffffff 00c0f300 DPL=3 DS [-WA] DS =0000 0000000000000000 00000000 00000000 FS =0000 00007f652e04e700 00000000 00000000 GS =0000 0000000000000000 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=00007fcfc7ad1058 CR3=000000000ebf2000 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=57205d3333383231392e30352020205b XMM01=732f74656e20746120383532203a4449 XMM02=79735f74656e5f726574736967657220 XMM03=2f74656e20746120383532203a444950 XMM04=61656e696c202c73657479000a5d3666 XMM05=676572203a6b72697571204544000a37 XMM06=3030203a504952205d3630333234352e XMM07=656c6c616b7a79732035303a38353a35 XMM08=7475636578652d7a7973223d6d6d6f63 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000