syzkaller login: [ 31.480624] sshd (210) used greatest stack depth: 24016 bytes left Warning: Permanently added '[localhost]:38182' (ECDSA) to the list of known hosts. 2023/05/17 11:29:38 fuzzer started 2023/05/17 11:29:38 dialing manager at localhost:44319 2023/05/17 11:29:39 checking machine... 2023/05/17 11:29:39 checking revisions... [ 36.425976] kmemleak: Automatic memory scanning thread ended 2023/05/17 11:29:39 testing simple program... [ 36.502562] cgroup: Unknown subsys name 'net' [ 36.582890] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 51.200584] audit: type=1400 audit(1684322993.926:6): 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 executing program [ 52.308570] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 52.310366] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 52.311490] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 52.313728] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 52.315073] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 52.316279] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 52.701973] ------------[ cut here ]------------ [ 52.703199] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 52.705257] WARNING: CPU: 1 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 52.706377] Modules linked in: [ 52.706786] CPU: 1 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 52.711776] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 52.712848] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 52.713551] 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 [ 52.715830] RSP: 0018:ffff88801efefc00 EFLAGS: 00010282 [ 52.716538] RAX: 0000000000000000 RBX: ffff88800d5c0040 RCX: 0000000000000000 [ 52.717467] RDX: ffff88801efe0000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 52.718394] RBP: ffff88800d5c0054 R08: 0000000000000001 R09: 0000000000000000 [ 52.719328] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 52.720248] R13: ffffffff84e23fe0 R14: ffff88800d5c0048 R15: ffffffff84d74dc0 [ 52.721171] FS: 0000555555e46400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 52.722202] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.722966] CR2: 00007fe00f04c6f4 CR3: 000000000dc3e000 CR4: 0000000000350ee0 [ 52.723889] Call Trace: [ 52.724257] [ 52.724564] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 52.725236] ipv4_frags_init_net+0x269/0x440 [ 52.725817] ops_init+0xbb/0x6b0 [ 52.726318] setup_net+0x3d9/0x990 [ 52.726792] ? down_read_killable+0x1d7/0x4e0 [ 52.727411] ? __pfx_setup_net+0x10/0x10 [ 52.727939] ? copy_net_ns+0x17c/0x770 [ 52.728492] copy_net_ns+0x321/0x770 [ 52.728995] create_new_namespaces+0x3f6/0xb30 [ 52.729626] unshare_nsproxy_namespaces+0xc1/0x200 [ 52.730303] ksys_unshare+0x44d/0x8e0 [ 52.730812] ? __pfx_ksys_unshare+0x10/0x10 [ 52.731406] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 52.732167] __x64_sys_unshare+0x31/0x40 [ 52.732703] do_syscall_64+0x3f/0x90 [ 52.733224] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 52.733891] RIP: 0033:0x7f4621f2b0d7 [ 52.734423] 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 [ 52.736675] RSP: 002b:00007ffd34eed2b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 52.737646] RAX: ffffffffffffffda RBX: 00007ffd34eed8f8 RCX: 00007f4621f2b0d7 [ 52.738583] RDX: 00007f4621f9541f RSI: 00007ffd34eed250 RDI: 0000000040000000 [ 52.739501] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd34eed060 [ 52.740409] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f462203dbf0 [ 52.741321] R13: 00007ffd34eed390 R14: 0000000000000000 R15: 00000000000000f8 [ 52.742280] [ 52.742593] irq event stamp: 8983 [ 52.743030] hardirqs last enabled at (8993): [] __up_console_sem+0x78/0x80 [ 52.744141] hardirqs last disabled at (9006): [] __up_console_sem+0x5d/0x80 [ 52.745239] softirqs last enabled at (8530): [] irq_exit_rcu+0x93/0xc0 [ 52.746325] softirqs last disabled at (8519): [] irq_exit_rcu+0x93/0xc0 [ 52.747395] ---[ end trace 0000000000000000 ]--- [ 52.752627] ------------[ cut here ]------------ [ 52.753282] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 52.755002] WARNING: CPU: 1 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 52.756103] Modules linked in: [ 52.756541] CPU: 1 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 52.757745] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 52.758803] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 52.759497] 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 [ 52.761774] RSP: 0018:ffff88801efefc00 EFLAGS: 00010282 [ 52.762496] RAX: 0000000000000000 RBX: ffff8880097ad040 RCX: 0000000000000000 [ 52.763418] RDX: ffff88801efe0000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 52.764340] RBP: ffff8880097ad054 R08: 0000000000000001 R09: 0000000000000000 [ 52.765261] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 52.766189] R13: ffffffff84e23fe0 R14: ffff8880097ad048 R15: ffffffff84da7d60 [ 52.767100] FS: 0000555555e46400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 52.768154] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.768888] CR2: 00007fe00f04c6f4 CR3: 000000000dc3e000 CR4: 0000000000350ee0 [ 52.769815] Call Trace: [ 52.770178] [ 52.770496] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 52.771163] ipv6_frags_init_net+0x206/0x3c0 [ 52.771746] ops_init+0xbb/0x6b0 [ 52.772230] setup_net+0x3d9/0x990 [ 52.772701] ? down_read_killable+0x1d7/0x4e0 [ 52.773320] ? __pfx_setup_net+0x10/0x10 [ 52.773852] ? copy_net_ns+0x17c/0x770 [ 52.774425] copy_net_ns+0x321/0x770 [ 52.774925] create_new_namespaces+0x3f6/0xb30 [ 52.775559] unshare_nsproxy_namespaces+0xc1/0x200 [ 52.776231] ksys_unshare+0x44d/0x8e0 [ 52.776733] ? __pfx_ksys_unshare+0x10/0x10 [ 52.777322] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 52.778056] __x64_sys_unshare+0x31/0x40 [ 52.778624] do_syscall_64+0x3f/0x90 [ 52.779150] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 52.779815] RIP: 0033:0x7f4621f2b0d7 [ 52.780320] 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 [ 52.782588] RSP: 002b:00007ffd34eed2b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 52.783571] RAX: ffffffffffffffda RBX: 00007ffd34eed8f8 RCX: 00007f4621f2b0d7 [ 52.784487] RDX: 00007f4621f9541f RSI: 00007ffd34eed250 RDI: 0000000040000000 [ 52.785412] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd34eed060 [ 52.786342] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f462203dbf0 [ 52.787258] R13: 00007ffd34eed390 R14: 0000000000000000 R15: 00000000000000f8 [ 52.788196] [ 52.788512] irq event stamp: 10859 [ 52.788961] hardirqs last enabled at (10869): [] __up_console_sem+0x78/0x80 [ 52.790059] hardirqs last disabled at (10880): [] __up_console_sem+0x5d/0x80 [ 52.791168] softirqs last enabled at (10394): [] irq_exit_rcu+0x93/0xc0 [ 52.792244] softirqs last disabled at (10389): [] irq_exit_rcu+0x93/0xc0 [ 52.793322] ---[ end trace 0000000000000000 ]--- [ 52.794750] ------------[ cut here ]------------ [ 52.795439] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 52.797449] WARNING: CPU: 1 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 52.798552] Modules linked in: [ 52.798969] CPU: 1 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 52.800171] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 52.801220] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 52.801884] 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 [ 52.804157] RSP: 0018:ffff88801efefbf0 EFLAGS: 00010286 [ 52.804836] RAX: 0000000000000000 RBX: ffff8880097aca40 RCX: 0000000000000000 [ 52.805770] RDX: ffff88801efe0000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 52.806711] RBP: ffff8880097aca54 R08: 0000000000000001 R09: 0000000000000000 [ 52.807637] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 52.808553] R13: ffffffff84e23fe0 R14: ffff8880097aca48 R15: ffffffff84db0aa0 [ 52.809478] FS: 0000555555e46400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 52.810527] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.811292] CR2: 00007fe00f04c6f4 CR3: 000000000dc3e000 CR4: 0000000000350ee0 [ 52.812214] Call Trace: [ 52.812550] [ 52.812859] nf_ct_net_init+0x224/0x3d0 [ 52.813424] ? __pfx_nf_ct_net_init+0x10/0x10 [ 52.814021] ops_init+0xbb/0x6b0 [ 52.814523] setup_net+0x3d9/0x990 [ 52.815000] ? down_read_killable+0x1d7/0x4e0 [ 52.815613] ? __pfx_setup_net+0x10/0x10 [ 52.816174] ? copy_net_ns+0x17c/0x770 [ 52.816706] copy_net_ns+0x321/0x770 [ 52.817246] create_new_namespaces+0x3f6/0xb30 [ 52.817853] unshare_nsproxy_namespaces+0xc1/0x200 [ 52.818546] ksys_unshare+0x44d/0x8e0 [ 52.819052] ? __pfx_ksys_unshare+0x10/0x10 [ 52.819647] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 52.820424] __x64_sys_unshare+0x31/0x40 [ 52.820963] do_syscall_64+0x3f/0x90 [ 52.821488] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 52.822179] RIP: 0033:0x7f4621f2b0d7 [ 52.822672] 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 [ 52.824917] RSP: 002b:00007ffd34eed2b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 52.825890] RAX: ffffffffffffffda RBX: 00007ffd34eed8f8 RCX: 00007f4621f2b0d7 [ 52.826835] RDX: 00007f4621f9541f RSI: 00007ffd34eed250 RDI: 0000000040000000 [ 52.827750] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd34eed060 [ 52.828663] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f462203dbf0 [ 52.829582] R13: 00007ffd34eed390 R14: 0000000000000000 R15: 00000000000000f8 [ 52.830533] [ 52.830844] irq event stamp: 11761 [ 52.831325] hardirqs last enabled at (11773): [] __up_console_sem+0x78/0x80 [ 52.832425] hardirqs last disabled at (11784): [] __up_console_sem+0x5d/0x80 [ 52.833528] softirqs last enabled at (11612): [] irq_exit_rcu+0x93/0xc0 [ 52.834593] softirqs last disabled at (11607): [] irq_exit_rcu+0x93/0xc0 [ 52.835611] ---[ end trace 0000000000000000 ]--- executing program [ 54.333544] Bluetooth: hci0: command 0x0409 tx timeout [ 56.381689] Bluetooth: hci0: command 0x041b tx timeout executing program [ 58.429188] Bluetooth: hci0: command 0x040f tx timeout executing program [ 60.477197] Bluetooth: hci0: command 0x0419 tx timeout VM DIAGNOSIS: 11:29:55 Registers: info registers vcpu 0 RAX=00000000000338a1 RBX=0000000000000000 RCX=ffffffff844d0a0e RDX=0000000000000000 RSI=0000000000000000 RDI=ffffffff81287415 RBP=dffffc0000000000 RSP=ffffffff85407e10 R8 =0000000000000001 R9 =ffffed100d9c69f8 R10=ffff88806ce34fc3 R11=0000000000000001 R12=ffffffff85d35a10 R13=1ffffffff0a80fc7 R14=0000000000000000 R15=0000000000000000 RIP=ffffffff844d199f RFL=00000202 [-------] 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=00007f0d07ebdde0 CR3=0000000006964000 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=2035353a39323a31312037312079614d XMM01=5d3735323530372e32352020205b203a XMM02=74656e20746120383532203a44495020 XMM03=735f74656e5f72657473696765722035 XMM04=7379735f74656e5f7265747369676572 XMM05=732f74656e20746120383532203a4449 XMM06=57205d3735323530372e32352020205b XMM07=79732035353a39323a31312037312079 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=ffffffff82507f85 RDI=ffffffff87f2dc00 RBP=ffffffff87f2dbc0 RSP=ffff88801efef5f0 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 0000555555e46400 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=00007fe00f04c6f4 CR3=000000000dc3e000 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