syzkaller login: [ 36.073935] sshd (225) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:45730' (ECDSA) to the list of known hosts. 2023/05/17 19:57:47 fuzzer started 2023/05/17 19:57:47 dialing manager at localhost:44319 2023/05/17 19:57:47 checking machine... 2023/05/17 19:57:47 checking revisions... [ 37.339678] kmemleak: Automatic memory scanning thread ended 2023/05/17 19:57:47 testing simple program... [ 37.413527] cgroup: Unknown subsys name 'net' [ 37.495337] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program [ 48.855794] audit: type=1400 audit(1684353479.410:6): 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 [ 49.987677] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 49.990999] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 49.993244] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 49.996851] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 49.999934] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 50.002018] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 50.395823] ------------[ cut here ]------------ [ 50.396594] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 50.398268] WARNING: CPU: 0 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 50.399392] Modules linked in: [ 50.399812] CPU: 0 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 50.404275] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 50.405330] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 50.406034] 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 [ 50.408292] RSP: 0018:ffff888018237c00 EFLAGS: 00010282 [ 50.409017] RAX: 0000000000000000 RBX: ffff88800ca64040 RCX: 0000000000000000 [ 50.409906] RDX: ffff888018918000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 50.410836] RBP: ffff88800ca64054 R08: 0000000000000001 R09: 0000000000000000 [ 50.411774] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 50.412703] R13: ffffffff84e23fe0 R14: ffff88800ca64048 R15: ffffffff84d74dc0 [ 50.413633] FS: 00005555565e5400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 50.414670] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.415472] CR2: 00007f3f0c5e1000 CR3: 0000000016c60000 CR4: 0000000000350ef0 [ 50.416397] Call Trace: [ 50.416734] [ 50.417082] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 50.417720] ipv4_frags_init_net+0x269/0x440 [ 50.418333] ops_init+0xbb/0x6b0 [ 50.418794] setup_net+0x3d9/0x990 [ 50.419309] ? down_read_killable+0x1d7/0x4e0 [ 50.419913] ? __pfx_setup_net+0x10/0x10 [ 50.420468] ? copy_net_ns+0x17c/0x770 [ 50.421026] copy_net_ns+0x321/0x770 [ 50.421529] create_new_namespaces+0x3f6/0xb30 [ 50.422166] unshare_nsproxy_namespaces+0xc1/0x200 [ 50.422812] ksys_unshare+0x44d/0x8e0 [ 50.423373] ? __pfx_ksys_unshare+0x10/0x10 [ 50.423941] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 50.424705] __x64_sys_unshare+0x31/0x40 [ 50.425276] do_syscall_64+0x3f/0x90 [ 50.425775] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 50.426472] RIP: 0033:0x7fe298c9b0d7 [ 50.426951] 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 [ 50.429238] RSP: 002b:00007fff7dbb7168 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 50.430240] RAX: ffffffffffffffda RBX: 00007fff7dbb77a8 RCX: 00007fe298c9b0d7 [ 50.431167] RDX: 00007fe298d0541f RSI: 00007fff7dbb7100 RDI: 0000000040000000 [ 50.432121] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fff7dbb6f10 [ 50.433040] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fe298dadbf0 [ 50.433917] R13: 00007fff7dbb7240 R14: 0000000000000000 R15: 00000000000000f8 [ 50.434861] [ 50.435202] irq event stamp: 8027 [ 50.435660] hardirqs last enabled at (8037): [] __up_console_sem+0x78/0x80 [ 50.436752] hardirqs last disabled at (8048): [] __up_console_sem+0x5d/0x80 [ 50.437856] softirqs last enabled at (7964): [] irq_exit_rcu+0x93/0xc0 [ 50.438931] softirqs last disabled at (7959): [] irq_exit_rcu+0x93/0xc0 [ 50.440028] ---[ end trace 0000000000000000 ]--- [ 50.445805] ------------[ cut here ]------------ [ 50.446594] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 50.448297] WARNING: CPU: 0 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 50.449394] Modules linked in: [ 50.449815] CPU: 0 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 50.451019] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 50.452099] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 50.452789] 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 [ 50.455062] RSP: 0018:ffff888018237c00 EFLAGS: 00010282 [ 50.455756] RAX: 0000000000000000 RBX: ffff88800da99040 RCX: 0000000000000000 [ 50.456647] RDX: ffff888018918000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 50.457559] RBP: ffff88800da99054 R08: 0000000000000001 R09: 0000000000000000 [ 50.458451] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 50.459349] R13: ffffffff84e23fe0 R14: ffff88800da99048 R15: ffffffff84da7d60 [ 50.460249] FS: 00005555565e5400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 50.461251] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.461959] CR2: 00007f3f0c5e1000 CR3: 0000000016c60000 CR4: 0000000000350ef0 [ 50.462855] Call Trace: [ 50.463218] [ 50.463543] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 50.464206] ipv6_frags_init_net+0x206/0x3c0 [ 50.464771] ops_init+0xbb/0x6b0 [ 50.465259] setup_net+0x3d9/0x990 [ 50.465717] ? down_read_killable+0x1d7/0x4e0 [ 50.466313] ? __pfx_setup_net+0x10/0x10 [ 50.466822] ? copy_net_ns+0x17c/0x770 [ 50.467377] copy_net_ns+0x321/0x770 [ 50.467864] create_new_namespaces+0x3f6/0xb30 [ 50.468489] unshare_nsproxy_namespaces+0xc1/0x200 [ 50.469139] ksys_unshare+0x44d/0x8e0 [ 50.469628] ? __pfx_ksys_unshare+0x10/0x10 [ 50.470212] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 50.470917] __x64_sys_unshare+0x31/0x40 [ 50.471475] do_syscall_64+0x3f/0x90 [ 50.471948] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 50.472628] RIP: 0033:0x7fe298c9b0d7 [ 50.473129] 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 [ 50.475437] RSP: 002b:00007fff7dbb7168 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 50.476497] RAX: ffffffffffffffda RBX: 00007fff7dbb77a8 RCX: 00007fe298c9b0d7 [ 50.477413] RDX: 00007fe298d0541f RSI: 00007fff7dbb7100 RDI: 0000000040000000 [ 50.478312] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fff7dbb6f10 [ 50.479231] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fe298dadbf0 [ 50.480181] R13: 00007fff7dbb7240 R14: 0000000000000000 R15: 00000000000000f8 [ 50.481094] [ 50.481394] irq event stamp: 9887 [ 50.481812] hardirqs last enabled at (9897): [] __up_console_sem+0x78/0x80 [ 50.482873] hardirqs last disabled at (9908): [] __up_console_sem+0x5d/0x80 [ 50.483936] softirqs last enabled at (9812): [] irq_exit_rcu+0x93/0xc0 [ 50.484977] softirqs last disabled at (9805): [] irq_exit_rcu+0x93/0xc0 [ 50.486012] ---[ end trace 0000000000000000 ]--- [ 50.487390] ------------[ cut here ]------------ [ 50.488026] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 50.489880] WARNING: CPU: 0 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 50.490943] Modules linked in: [ 50.491382] CPU: 0 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 50.492537] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 50.493548] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 50.494237] 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 [ 50.496409] RSP: 0018:ffff888018237bf0 EFLAGS: 00010286 [ 50.497096] RAX: 0000000000000000 RBX: ffff88800da98a40 RCX: 0000000000000000 [ 50.497954] RDX: ffff888018918000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 50.498838] RBP: ffff88800da98a54 R08: 0000000000000001 R09: 0000000000000000 [ 50.499754] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 50.500637] R13: ffffffff84e23fe0 R14: ffff88800da98a48 R15: ffffffff84db0aa0 [ 50.501530] FS: 00005555565e5400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 50.502537] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.503286] CR2: 00007f3f0c5e1000 CR3: 0000000016c60000 CR4: 0000000000350ef0 [ 50.504200] Call Trace: [ 50.504530] [ 50.504836] nf_ct_net_init+0x224/0x3d0 [ 50.505396] ? __pfx_nf_ct_net_init+0x10/0x10 [ 50.506003] ops_init+0xbb/0x6b0 [ 50.506456] setup_net+0x3d9/0x990 [ 50.506911] ? down_read_killable+0x1d7/0x4e0 [ 50.507542] ? __pfx_setup_net+0x10/0x10 [ 50.508089] ? copy_net_ns+0x17c/0x770 [ 50.508599] copy_net_ns+0x321/0x770 [ 50.509115] create_new_namespaces+0x3f6/0xb30 [ 50.509700] unshare_nsproxy_namespaces+0xc1/0x200 [ 50.510348] ksys_unshare+0x44d/0x8e0 [ 50.510837] ? __pfx_ksys_unshare+0x10/0x10 [ 50.511423] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 50.512174] __x64_sys_unshare+0x31/0x40 [ 50.512695] do_syscall_64+0x3f/0x90 [ 50.513207] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 50.513854] RIP: 0033:0x7fe298c9b0d7 [ 50.514353] 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 [ 50.516713] RSP: 002b:00007fff7dbb7168 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 50.517730] RAX: ffffffffffffffda RBX: 00007fff7dbb77a8 RCX: 00007fe298c9b0d7 [ 50.518686] RDX: 00007fe298d0541f RSI: 00007fff7dbb7100 RDI: 0000000040000000 [ 50.519658] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fff7dbb6f10 [ 50.520615] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fe298dadbf0 [ 50.521576] R13: 00007fff7dbb7240 R14: 0000000000000000 R15: 00000000000000f8 [ 50.522583] [ 50.522907] irq event stamp: 10685 [ 50.523427] hardirqs last enabled at (10697): [] __up_console_sem+0x78/0x80 [ 50.524590] hardirqs last disabled at (10708): [] __up_console_sem+0x5d/0x80 [ 50.525742] softirqs last enabled at (10246): [] irq_exit_rcu+0x93/0xc0 [ 50.526851] softirqs last disabled at (10241): [] irq_exit_rcu+0x93/0xc0 [ 50.527980] ---[ end trace 0000000000000000 ]--- [ 52.077703] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 54.124033] Bluetooth: hci0: command 0x041b tx timeout executing program [ 56.172118] Bluetooth: hci0: command 0x040f tx timeout executing program [ 58.220029] Bluetooth: hci0: command 0x0419 tx timeout VM DIAGNOSIS: 19:57:59 Registers: info registers vcpu 0 RAX=0000000000000064 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507f85 RDI=ffffffff87f2dc00 RBP=ffffffff87f2dbc0 RSP=ffff8880182375f0 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000064 R11=0000000000000001 R12=0000000000000064 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 00005555565e5400 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=00007f3f0c5e1000 CR3=0000000016c60000 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=000000000003625b 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=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 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=00007f3f0c50edb0 CR3=00000000188f0000 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=2030303a38353a39312037312079614d XMM01=5d3239333939332e30352020205b203a XMM02=646f4d205d3239333939332e30352020 XMM03=6b7a79732030303a38353a3931203731 XMM04=7379735f74656e5f7265747369676572 XMM05=732f74656e20746120383532203a4449 XMM06=57205d3836323839332e30352020205b XMM07=79732030303a38353a39312037312079 XMM08=7475636578652d7a7973223d6d6d6f63 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000