syzkaller login: [ 64.807635] sshd (225) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:49708' (ECDSA) to the list of known hosts. 2023/05/18 03:35:12 fuzzer started 2023/05/18 03:35:12 dialing manager at localhost:44319 2023/05/18 03:35:12 checking machine... 2023/05/18 03:35:12 checking revisions... [ 65.980469] kmemleak: Automatic memory scanning thread ended 2023/05/18 03:35:12 testing simple program... [ 66.048587] cgroup: Unknown subsys name 'net' [ 66.117970] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 78.178076] audit: type=1400 audit(1684380925.006:6): 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 [ 79.315644] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 79.318049] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 79.319326] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 79.322301] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 79.324393] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 79.325486] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 79.717577] ------------[ cut here ]------------ [ 79.718795] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 79.721080] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 79.722388] Modules linked in: [ 79.722920] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W L 6.4.0-rc2-next-20230517 #1 [ 79.727849] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 79.728863] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 79.729544] 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 [ 79.731751] RSP: 0018:ffff88800fd87c00 EFLAGS: 00010282 [ 79.732439] RAX: 0000000000000000 RBX: ffff888015e5a040 RCX: 0000000000000000 [ 79.733329] RDX: ffff888015bab680 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 79.734225] RBP: ffff888015e5a054 R08: 0000000000000001 R09: 0000000000000000 [ 79.735151] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 79.736040] R13: ffffffff84e23fe0 R14: ffff888015e5a048 R15: ffffffff84d74dc0 [ 79.736964] FS: 000055555748a400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 79.738018] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 79.738768] CR2: 00007fe7dfd7d6f4 CR3: 000000000ec86000 CR4: 0000000000350ef0 [ 79.739672] Call Trace: [ 79.740003] [ 79.740330] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 79.740957] ipv4_frags_init_net+0x269/0x440 [ 79.741554] ops_init+0xbb/0x6b0 [ 79.742002] setup_net+0x3d9/0x990 [ 79.742485] ? down_read_killable+0x1d7/0x4e0 [ 79.743097] ? __pfx_setup_net+0x10/0x10 [ 79.743646] ? copy_net_ns+0x17c/0x770 [ 79.744177] copy_net_ns+0x321/0x770 [ 79.744663] create_new_namespaces+0x3f6/0xb30 [ 79.745275] unshare_nsproxy_namespaces+0xc1/0x200 [ 79.745894] ksys_unshare+0x44d/0x8e0 [ 79.746419] ? __pfx_ksys_unshare+0x10/0x10 [ 79.746969] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 79.747716] __x64_sys_unshare+0x31/0x40 [ 79.748271] do_syscall_64+0x3f/0x90 [ 79.748747] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 79.749432] RIP: 0033:0x7f5755a310d7 [ 79.749894] 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 [ 79.752086] RSP: 002b:00007fff76ad93d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 79.753017] RAX: ffffffffffffffda RBX: 00007fff76ad9a18 RCX: 00007f5755a310d7 [ 79.753909] RDX: 00007f5755a9b41f RSI: 00007fff76ad9370 RDI: 0000000040000000 [ 79.754812] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fff76ad9180 [ 79.755722] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f5755b43bf0 [ 79.756651] R13: 00007fff76ad94b0 R14: 0000000000000000 R15: 00000000000000f8 [ 79.757561] [ 79.757867] irq event stamp: 8469 [ 79.758316] hardirqs last enabled at (8481): [] __up_console_sem+0x78/0x80 [ 79.759430] hardirqs last disabled at (8492): [] __up_console_sem+0x5d/0x80 [ 79.760512] softirqs last enabled at (8320): [] irq_exit_rcu+0x93/0xc0 [ 79.761572] softirqs last disabled at (8315): [] irq_exit_rcu+0x93/0xc0 [ 79.762628] ---[ end trace 0000000000000000 ]--- [ 79.768212] ------------[ cut here ]------------ [ 79.768836] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 79.770482] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 79.771589] Modules linked in: [ 79.771998] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W L 6.4.0-rc2-next-20230517 #1 [ 79.773160] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 79.774183] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 79.774837] 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 [ 79.777037] RSP: 0018:ffff88800fd87c00 EFLAGS: 00010282 [ 79.777720] RAX: 0000000000000000 RBX: ffff8880094cee40 RCX: 0000000000000000 [ 79.778610] RDX: ffff888015bab680 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 79.779504] RBP: ffff8880094cee54 R08: 0000000000000001 R09: 0000000000000000 [ 79.780393] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 79.781281] R13: ffffffff84e23fe0 R14: ffff8880094cee48 R15: ffffffff84da7d60 [ 79.782170] FS: 000055555748a400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 79.783191] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 79.783898] CR2: 00007fe7dfd7d6f4 CR3: 000000000ec86000 CR4: 0000000000350ef0 [ 79.784783] Call Trace: [ 79.785140] [ 79.785438] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 79.786048] ipv6_frags_init_net+0x206/0x3c0 [ 79.786645] ops_init+0xbb/0x6b0 [ 79.787159] setup_net+0x3d9/0x990 [ 79.787638] ? down_read_killable+0x1d7/0x4e0 [ 79.788261] ? __pfx_setup_net+0x10/0x10 [ 79.788802] ? copy_net_ns+0x17c/0x770 [ 79.789363] copy_net_ns+0x321/0x770 [ 79.789855] create_new_namespaces+0x3f6/0xb30 [ 79.790477] unshare_nsproxy_namespaces+0xc1/0x200 [ 79.791174] ksys_unshare+0x44d/0x8e0 [ 79.791667] ? __pfx_ksys_unshare+0x10/0x10 [ 79.792239] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 79.792964] __x64_sys_unshare+0x31/0x40 [ 79.793510] do_syscall_64+0x3f/0x90 [ 79.793987] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 79.794676] RIP: 0033:0x7f5755a310d7 [ 79.795182] 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 [ 79.797375] RSP: 002b:00007fff76ad93d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 79.798320] RAX: ffffffffffffffda RBX: 00007fff76ad9a18 RCX: 00007f5755a310d7 [ 79.799326] RDX: 00007f5755a9b41f RSI: 00007fff76ad9370 RDI: 0000000040000000 [ 79.800210] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fff76ad9180 [ 79.801068] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f5755b43bf0 [ 79.801975] R13: 00007fff76ad94b0 R14: 0000000000000000 R15: 00000000000000f8 [ 79.802927] [ 79.803257] irq event stamp: 10231 [ 79.803697] hardirqs last enabled at (10241): [] __up_console_sem+0x78/0x80 [ 79.804780] hardirqs last disabled at (10252): [] __up_console_sem+0x5d/0x80 [ 79.805891] softirqs last enabled at (9440): [] irq_exit_rcu+0x93/0xc0 [ 79.806928] softirqs last disabled at (9381): [] irq_exit_rcu+0x93/0xc0 [ 79.807949] ---[ end trace 0000000000000000 ]--- [ 79.809339] ------------[ cut here ]------------ [ 79.809915] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 79.811814] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 79.812911] Modules linked in: [ 79.813361] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W L 6.4.0-rc2-next-20230517 #1 [ 79.814520] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 79.815550] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 79.816233] 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 [ 79.818425] RSP: 0018:ffff88800fd87bf0 EFLAGS: 00010286 [ 79.819097] RAX: 0000000000000000 RBX: ffff8880094ce840 RCX: 0000000000000000 [ 79.819988] RDX: ffff888015bab680 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 79.820874] RBP: ffff8880094ce854 R08: 0000000000000001 R09: 0000000000000000 [ 79.821767] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 79.822671] R13: ffffffff84e23fe0 R14: ffff8880094ce848 R15: ffffffff84db0aa0 [ 79.823567] FS: 000055555748a400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 79.824571] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 79.825311] CR2: 00007fe7dfd7d6f4 CR3: 000000000ec86000 CR4: 0000000000350ef0 [ 79.826202] Call Trace: [ 79.826529] [ 79.826845] nf_ct_net_init+0x224/0x3d0 [ 79.827410] ? __pfx_nf_ct_net_init+0x10/0x10 [ 79.828014] ops_init+0xbb/0x6b0 [ 79.828498] setup_net+0x3d9/0x990 [ 79.828975] ? down_read_killable+0x1d7/0x4e0 [ 79.829588] ? __pfx_setup_net+0x10/0x10 [ 79.830144] ? copy_net_ns+0x17c/0x770 [ 79.830688] copy_net_ns+0x321/0x770 [ 79.831242] create_new_namespaces+0x3f6/0xb30 [ 79.831845] unshare_nsproxy_namespaces+0xc1/0x200 [ 79.832508] ksys_unshare+0x44d/0x8e0 [ 79.833017] ? __pfx_ksys_unshare+0x10/0x10 [ 79.833612] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 79.834372] __x64_sys_unshare+0x31/0x40 [ 79.834914] do_syscall_64+0x3f/0x90 [ 79.835436] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 79.836102] RIP: 0033:0x7f5755a310d7 [ 79.836610] 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 [ 79.838884] RSP: 002b:00007fff76ad93d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 79.839873] RAX: ffffffffffffffda RBX: 00007fff76ad9a18 RCX: 00007f5755a310d7 [ 79.840800] RDX: 00007f5755a9b41f RSI: 00007fff76ad9370 RDI: 0000000040000000 [ 79.841717] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fff76ad9180 [ 79.842645] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f5755b43bf0 [ 79.843562] R13: 00007fff76ad94b0 R14: 0000000000000000 R15: 00000000000000f8 [ 79.844504] [ 79.844805] irq event stamp: 11047 [ 79.845271] hardirqs last enabled at (11059): [] __up_console_sem+0x78/0x80 [ 79.846339] hardirqs last disabled at (11070): [] __up_console_sem+0x5d/0x80 [ 79.847403] softirqs last enabled at (10842): [] irq_exit_rcu+0x93/0xc0 [ 79.848436] softirqs last disabled at (10833): [] irq_exit_rcu+0x93/0xc0 [ 79.849480] ---[ end trace 0000000000000000 ]--- executing program [ 81.335827] Bluetooth: hci0: command 0x0409 tx timeout [ 83.383770] Bluetooth: hci0: command 0x041b tx timeout executing program [ 85.431198] Bluetooth: hci0: command 0x040f tx timeout executing program [ 87.480199] Bluetooth: hci0: command 0x0419 tx timeout VM DIAGNOSIS: 03:34:56 Registers: info registers vcpu 0 RAX=0000000000000020 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507f85 RDI=ffffffff87f2dc00 RBP=ffffffff87f2dbc0 RSP=ffff88800fd875f0 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 000055555748a400 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=00007fe7dfd7d6f4 CR3=000000000ec86000 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=0000000000065af5 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=00007f12d0af5970 CR3=000000000d51a000 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=2036323a35333a33302038312079614d XMM01=5d3038303132372e39372020205b203a XMM02=74656e20746120393532203a44495020 XMM03=735f74656e5f72657473696765722035 XMM04=7379735f74656e5f7265747369676572 XMM05=732f74656e20746120393532203a4449 XMM06=57205d3038303132372e39372020205b XMM07=79732036323a35333a33302038312079 XMM08=7475636578652d7a7973223d6d6d6f63 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000