syzkaller login: [ 34.290325] sshd (225) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:15747' (ECDSA) to the list of known hosts. 2023/05/17 09:25:39 fuzzer started 2023/05/17 09:25:40 dialing manager at localhost:35573 2023/05/17 09:25:40 checking machine... 2023/05/17 09:25:40 checking revisions... [ 35.209705] kmemleak: Automatic memory scanning thread ended 2023/05/17 09:25:40 testing simple program... [ 35.258162] cgroup: Unknown subsys name 'net' [ 35.333991] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 47.733950] audit: type=1400 audit(1684315552.770:6): 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 [ 48.827050] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 48.834223] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 48.835173] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 48.838434] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 48.840025] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 48.840962] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 49.136520] ------------[ cut here ]------------ [ 49.136954] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 49.137951] WARNING: CPU: 0 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 49.138605] Modules linked in: [ 49.138872] CPU: 0 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 49.139901] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 49.141101] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 49.142045] 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 20 24 e2 84 e8 6a cd d5 fc <0f> 0b 48 89 e8 48 c1 e8 03 42 0f b6 14 20 48 89 e8 83 e0 07 83 c0 [ 49.143683] RSP: 0018:ffff888020677c00 EFLAGS: 00010282 [ 49.144084] RAX: 0000000000000000 RBX: ffff88800968c440 RCX: 0000000000000000 [ 49.144625] RDX: ffff888015a251c0 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 49.145142] RBP: ffff88800968c454 R08: 0000000000000001 R09: 0000000000000000 [ 49.145679] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 49.146215] R13: ffffffff84e223a0 R14: ffff88800968c448 R15: ffffffff84d73340 [ 49.146757] FS: 0000555556191400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 49.147423] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 49.147860] CR2: 00007f07bba996f4 CR3: 0000000016072000 CR4: 0000000000350ef0 [ 49.148431] Call Trace: [ 49.148643] [ 49.148831] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 49.149222] ipv4_frags_init_net+0x269/0x440 [ 49.149581] ops_init+0xbb/0x6b0 [ 49.149900] setup_net+0x3d9/0x990 [ 49.150181] ? down_read_killable+0x1d7/0x4e0 [ 49.150559] ? __pfx_setup_net+0x10/0x10 [ 49.150867] ? copy_net_ns+0x17c/0x770 [ 49.151182] copy_net_ns+0x321/0x770 [ 49.151504] create_new_namespaces+0x3f6/0xb30 [ 49.151881] unshare_nsproxy_namespaces+0xc1/0x200 [ 49.152293] ksys_unshare+0x44d/0x8e0 [ 49.152605] ? __pfx_ksys_unshare+0x10/0x10 [ 49.152952] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 49.153426] __x64_sys_unshare+0x31/0x40 [ 49.153752] do_syscall_64+0x3f/0x90 [ 49.154070] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 49.154507] RIP: 0033:0x7f65826f00d7 [ 49.154810] 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 [ 49.156193] RSP: 002b:00007ffceb2ceff8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 49.156793] RAX: ffffffffffffffda RBX: 00007ffceb2cf638 RCX: 00007f65826f00d7 [ 49.157365] RDX: 00007f658275a41f RSI: 00007ffceb2cef90 RDI: 0000000040000000 [ 49.157913] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffceb2ceda0 [ 49.158487] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f6582802bf0 [ 49.159052] R13: 00007ffceb2cf0d0 R14: 0000000000000000 R15: 00000000000000f8 [ 49.159618] [ 49.159803] irq event stamp: 8255 [ 49.160056] hardirqs last enabled at (8265): [] __up_console_sem+0x78/0x80 [ 49.160709] hardirqs last disabled at (8276): [] __up_console_sem+0x5d/0x80 [ 49.161355] softirqs last enabled at (7678): [] irq_exit_rcu+0x93/0xc0 [ 49.161986] softirqs last disabled at (7659): [] irq_exit_rcu+0x93/0xc0 [ 49.162618] ---[ end trace 0000000000000000 ]--- [ 49.167333] ------------[ cut here ]------------ [ 49.167753] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 49.168801] WARNING: CPU: 0 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 49.169488] Modules linked in: [ 49.169768] CPU: 0 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 49.170510] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 49.171145] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 49.171586] 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 20 24 e2 84 e8 6a cd d5 fc <0f> 0b 48 89 e8 48 c1 e8 03 42 0f b6 14 20 48 89 e8 83 e0 07 83 c0 [ 49.172900] RSP: 0018:ffff888020677c00 EFLAGS: 00010282 [ 49.173324] RAX: 0000000000000000 RBX: ffff888008f01640 RCX: 0000000000000000 [ 49.173846] RDX: ffff888015a251c0 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 49.174389] RBP: ffff888008f01654 R08: 0000000000000001 R09: 0000000000000000 [ 49.174941] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 49.175530] R13: ffffffff84e223a0 R14: ffff888008f01648 R15: ffffffff84da62e0 [ 49.176075] FS: 0000555556191400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 49.176744] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 49.177178] CR2: 00007f07bba996f4 CR3: 0000000016072000 CR4: 0000000000350ef0 [ 49.177724] Call Trace: [ 49.177959] [ 49.178142] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 49.178539] ipv6_frags_init_net+0x206/0x3c0 [ 49.178875] ops_init+0xbb/0x6b0 [ 49.179153] setup_net+0x3d9/0x990 [ 49.179451] ? down_read_killable+0x1d7/0x4e0 [ 49.179799] ? __pfx_setup_net+0x10/0x10 [ 49.180106] ? copy_net_ns+0x17c/0x770 [ 49.180450] copy_net_ns+0x321/0x770 [ 49.180779] create_new_namespaces+0x3f6/0xb30 [ 49.181164] unshare_nsproxy_namespaces+0xc1/0x200 [ 49.181575] ksys_unshare+0x44d/0x8e0 [ 49.181901] ? __pfx_ksys_unshare+0x10/0x10 [ 49.182289] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 49.182752] __x64_sys_unshare+0x31/0x40 [ 49.183066] do_syscall_64+0x3f/0x90 [ 49.183380] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 49.183770] RIP: 0033:0x7f65826f00d7 [ 49.184052] 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 [ 49.185367] RSP: 002b:00007ffceb2ceff8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 49.185959] RAX: ffffffffffffffda RBX: 00007ffceb2cf638 RCX: 00007f65826f00d7 [ 49.186505] RDX: 00007f658275a41f RSI: 00007ffceb2cef90 RDI: 0000000040000000 [ 49.187059] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffceb2ceda0 [ 49.187639] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f6582802bf0 [ 49.188157] R13: 00007ffceb2cf0d0 R14: 0000000000000000 R15: 00000000000000f8 [ 49.188756] [ 49.188961] irq event stamp: 9899 [ 49.189223] hardirqs last enabled at (9909): [] __up_console_sem+0x78/0x80 [ 49.189892] hardirqs last disabled at (9920): [] __up_console_sem+0x5d/0x80 [ 49.190549] softirqs last enabled at (9418): [] irq_exit_rcu+0x93/0xc0 [ 49.191151] softirqs last disabled at (9395): [] irq_exit_rcu+0x93/0xc0 [ 49.191777] ---[ end trace 0000000000000000 ]--- [ 49.192907] ------------[ cut here ]------------ [ 49.193315] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 49.194611] WARNING: CPU: 0 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 49.195309] Modules linked in: [ 49.195570] CPU: 0 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 49.196315] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 49.196944] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 49.197385] 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 20 24 e2 84 e8 6a cd d5 fc <0f> 0b 48 89 e8 48 c1 e8 03 42 0f b6 14 20 48 89 e8 83 e0 07 83 c0 [ 49.198841] RSP: 0018:ffff888020677bf0 EFLAGS: 00010286 [ 49.199317] RAX: 0000000000000000 RBX: ffff88800e9b4040 RCX: 0000000000000000 [ 49.199861] RDX: ffff888015a251c0 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 49.200438] RBP: ffff88800e9b4054 R08: 0000000000000001 R09: 0000000000000000 [ 49.201015] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 49.201622] R13: ffffffff84e223a0 R14: ffff88800e9b4048 R15: ffffffff84daf020 [ 49.202200] FS: 0000555556191400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 49.202841] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 49.203321] CR2: 00007f07bba996f4 CR3: 0000000016072000 CR4: 0000000000350ef0 [ 49.203868] Call Trace: [ 49.204079] [ 49.204299] nf_ct_net_init+0x224/0x3d0 [ 49.204640] ? __pfx_nf_ct_net_init+0x10/0x10 [ 49.205001] ops_init+0xbb/0x6b0 [ 49.205319] setup_net+0x3d9/0x990 [ 49.205639] ? down_read_killable+0x1d7/0x4e0 [ 49.206103] ? __pfx_setup_net+0x10/0x10 [ 49.206513] ? copy_net_ns+0x17c/0x770 [ 49.206861] copy_net_ns+0x321/0x770 [ 49.207196] create_new_namespaces+0x3f6/0xb30 [ 49.207596] unshare_nsproxy_namespaces+0xc1/0x200 [ 49.207986] ksys_unshare+0x44d/0x8e0 [ 49.208322] ? __pfx_ksys_unshare+0x10/0x10 [ 49.208683] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 49.209140] __x64_sys_unshare+0x31/0x40 [ 49.209490] do_syscall_64+0x3f/0x90 [ 49.209780] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 49.210212] RIP: 0033:0x7f65826f00d7 [ 49.210525] 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 [ 49.211843] RSP: 002b:00007ffceb2ceff8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 49.212420] RAX: ffffffffffffffda RBX: 00007ffceb2cf638 RCX: 00007f65826f00d7 [ 49.212968] RDX: 00007f658275a41f RSI: 00007ffceb2cef90 RDI: 0000000040000000 [ 49.213551] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffceb2ceda0 [ 49.214078] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f6582802bf0 [ 49.214680] R13: 00007ffceb2cf0d0 R14: 0000000000000000 R15: 00000000000000f8 [ 49.215249] [ 49.215464] irq event stamp: 10613 [ 49.215727] hardirqs last enabled at (10623): [] __up_console_sem+0x78/0x80 [ 49.216383] hardirqs last disabled at (10634): [] __up_console_sem+0x5d/0x80 [ 49.217001] softirqs last enabled at (9418): [] irq_exit_rcu+0x93/0xc0 [ 49.217634] softirqs last disabled at (9395): [] irq_exit_rcu+0x93/0xc0 [ 49.218293] ---[ end trace 0000000000000000 ]--- executing program [ 50.861149] Bluetooth: hci0: command 0x0409 tx timeout [ 52.909118] Bluetooth: hci0: command 0x041b tx timeout executing program [ 54.956326] Bluetooth: hci0: command 0x040f tx timeout executing program [ 57.004456] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 09:25:53 Registers: info registers vcpu 0 RAX=0000000000000000 RBX=dffffc0000000000 RCX=0000000000000000 RDX=0000000000000000 RSI=ffffffff84e31360 RDI=0000000000000009 RBP=ffff8880206774f9 RSP=ffff8880206772a0 R8 =0000000000000009 R9 =0000000000000007 R10=0000000000000009 R11=fffffffffffcb480 R12=0000000000000010 R13=ffffffff8487a545 R14=0000000000000009 R15=ffff8880206773a8 RIP=ffffffff814bf470 RFL=00000246 [---Z-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 0000555556191400 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=00007f07bba996f4 CR3=0000000016072000 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=dffffc0000000000 RBX=ffff88800fd5b700 RCX=0000000000000001 RDX=1ffff11001fab6e0 RSI=ffff88806cf396d8 RDI=ffff88800fd5b748 RBP=ffff88800c469400 RSP=ffff88806cf09cf8 R8 =0000000000000001 R9 =ffffed100d9e13a3 R10=0000000000000003 R11=0000000000000001 R12=000000000001de65 R13=ffff88800fd5b780 R14=ffff88800fd5b680 R15=ffff88800c469400 RIP=ffffffff81254af4 RFL=00000046 [---Z-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 00007fb4e3420700 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=00007fc4d3c15000 CR3=0000000014790000 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=2034353a35323a39302037312079614d XMM01=5d3534303234312e39342020205b203a XMM02=65203163203834203830203334206238 XMM03=20303020666120353820663020303020 XMM04=38652039382038342030322034312036 XMM05=20383420386520393820383420623020 XMM06=20386520343820326520343220303220 XMM07=34203965203938206334203331206238 XMM08=7475636578652d7a7973223d6d6d6f63 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000