syzkaller login: [ 38.204210] sshd (225) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:8158' (ECDSA) to the list of known hosts. 2023/05/17 05:11:11 fuzzer started 2023/05/17 05:11:12 dialing manager at localhost:35573 2023/05/17 05:11:12 checking machine... 2023/05/17 05:11:12 checking revisions... [ 39.336061] kmemleak: Automatic memory scanning thread ended 2023/05/17 05:11:12 testing simple program... [ 39.394554] cgroup: Unknown subsys name 'net' [ 39.442397] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 52.071005] audit: type=1400 audit(1684300284.965:6): 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 [ 53.210642] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 53.213340] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 53.214764] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 53.218238] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 53.219711] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 53.221159] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 53.607793] ------------[ cut here ]------------ [ 53.608492] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 53.610284] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 53.611412] Modules linked in: [ 53.611864] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 53.616776] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 53.617845] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 53.618502] 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 [ 53.620812] RSP: 0018:ffff888016bdfc00 EFLAGS: 00010282 [ 53.621484] RAX: 0000000000000000 RBX: ffff88800dcd0440 RCX: 0000000000000000 [ 53.622394] RDX: ffff88800fde8000 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 53.623320] RBP: ffff88800dcd0454 R08: 0000000000000001 R09: 0000000000000000 [ 53.624241] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 53.625163] R13: ffffffff84e223a0 R14: ffff88800dcd0448 R15: ffffffff84d73340 [ 53.626078] FS: 0000555555b4c400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 53.627140] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.627900] CR2: 000055e1991e54c8 CR3: 0000000009570000 CR4: 0000000000350ef0 [ 53.628781] Call Trace: [ 53.629149] [ 53.629456] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 53.630115] ipv4_frags_init_net+0x269/0x440 [ 53.630701] ops_init+0xbb/0x6b0 [ 53.631190] setup_net+0x3d9/0x990 [ 53.631661] ? down_read_killable+0x1d7/0x4e0 [ 53.632267] ? __pfx_setup_net+0x10/0x10 [ 53.632821] ? copy_net_ns+0x17c/0x770 [ 53.633343] copy_net_ns+0x321/0x770 [ 53.633868] create_new_namespaces+0x3f6/0xb30 [ 53.634471] unshare_nsproxy_namespaces+0xc1/0x200 [ 53.635131] ksys_unshare+0x44d/0x8e0 [ 53.635629] ? __pfx_ksys_unshare+0x10/0x10 [ 53.636217] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 53.636964] __x64_sys_unshare+0x31/0x40 [ 53.637478] do_syscall_64+0x3f/0x90 [ 53.637984] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 53.638646] RIP: 0033:0x7fef13ac10d7 [ 53.639145] 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 [ 53.641331] RSP: 002b:00007ffc23041528 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 53.642288] RAX: ffffffffffffffda RBX: 00007ffc23041b68 RCX: 00007fef13ac10d7 [ 53.643200] RDX: 00007fef13b2b41f RSI: 00007ffc230414c0 RDI: 0000000040000000 [ 53.644085] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffc230412d0 [ 53.644975] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fef13bd3bf0 [ 53.645875] R13: 00007ffc23041600 R14: 0000000000000000 R15: 00000000000000f8 [ 53.646783] [ 53.647125] irq event stamp: 8127 [ 53.647549] hardirqs last enabled at (8137): [] __up_console_sem+0x78/0x80 [ 53.648648] hardirqs last disabled at (8148): [] __up_console_sem+0x5d/0x80 [ 53.649715] softirqs last enabled at (7602): [] irq_exit_rcu+0x93/0xc0 [ 53.650782] softirqs last disabled at (7597): [] irq_exit_rcu+0x93/0xc0 [ 53.651838] ---[ end trace 0000000000000000 ]--- [ 53.657159] ------------[ cut here ]------------ [ 53.657750] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 53.659422] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 53.660497] Modules linked in: [ 53.660943] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 53.662126] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 53.663151] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 53.663818] 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 [ 53.665999] RSP: 0018:ffff888016bdfc00 EFLAGS: 00010282 [ 53.666672] RAX: 0000000000000000 RBX: ffff88800f59fe40 RCX: 0000000000000000 [ 53.667563] RDX: ffff88800fde8000 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 53.668444] RBP: ffff88800f59fe54 R08: 0000000000000001 R09: 0000000000000000 [ 53.669345] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 53.670240] R13: ffffffff84e223a0 R14: ffff88800f59fe48 R15: ffffffff84da62e0 [ 53.671163] FS: 0000555555b4c400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 53.672173] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.672910] CR2: 000055e1991e54c8 CR3: 0000000009570000 CR4: 0000000000350ef0 [ 53.673780] Call Trace: [ 53.674140] [ 53.674438] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 53.675098] ipv6_frags_init_net+0x206/0x3c0 [ 53.675665] ops_init+0xbb/0x6b0 [ 53.676140] setup_net+0x3d9/0x990 [ 53.676600] ? down_read_killable+0x1d7/0x4e0 [ 53.677206] ? __pfx_setup_net+0x10/0x10 [ 53.677712] ? copy_net_ns+0x17c/0x770 [ 53.678247] copy_net_ns+0x321/0x770 [ 53.678749] create_new_namespaces+0x3f6/0xb30 [ 53.679360] unshare_nsproxy_namespaces+0xc1/0x200 [ 53.680010] ksys_unshare+0x44d/0x8e0 [ 53.680505] ? __pfx_ksys_unshare+0x10/0x10 [ 53.681081] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 53.681817] __x64_sys_unshare+0x31/0x40 [ 53.682343] do_syscall_64+0x3f/0x90 [ 53.682892] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 53.683528] RIP: 0033:0x7fef13ac10d7 [ 53.684031] 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 [ 53.686220] RSP: 002b:00007ffc23041528 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 53.687197] RAX: ffffffffffffffda RBX: 00007ffc23041b68 RCX: 00007fef13ac10d7 [ 53.688086] RDX: 00007fef13b2b41f RSI: 00007ffc230414c0 RDI: 0000000040000000 [ 53.688983] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffc230412d0 [ 53.689872] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fef13bd3bf0 [ 53.690734] R13: 00007ffc23041600 R14: 0000000000000000 R15: 00000000000000f8 [ 53.691670] [ 53.692002] irq event stamp: 9989 [ 53.692432] hardirqs last enabled at (9999): [] __up_console_sem+0x78/0x80 [ 53.693491] hardirqs last disabled at (10010): [] __up_console_sem+0x5d/0x80 [ 53.694594] softirqs last enabled at (9972): [] irq_exit_rcu+0x93/0xc0 [ 53.695639] softirqs last disabled at (9963): [] irq_exit_rcu+0x93/0xc0 [ 53.696676] ---[ end trace 0000000000000000 ]--- [ 53.698028] ------------[ cut here ]------------ [ 53.698616] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 53.700584] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 53.701657] Modules linked in: [ 53.702095] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 53.703273] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 53.704303] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 53.704979] 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 [ 53.707198] RSP: 0018:ffff888016bdfbf0 EFLAGS: 00010286 [ 53.707875] RAX: 0000000000000000 RBX: ffff88800f59f840 RCX: 0000000000000000 [ 53.708732] RDX: ffff88800fde8000 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 53.709631] RBP: ffff88800f59f854 R08: 0000000000000001 R09: 0000000000000000 [ 53.710520] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 53.711420] R13: ffffffff84e223a0 R14: ffff88800f59f848 R15: ffffffff84daf020 [ 53.712303] FS: 0000555555b4c400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 53.713299] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.714043] CR2: 000055e1991e54c8 CR3: 0000000009570000 CR4: 0000000000350ef0 [ 53.714951] Call Trace: [ 53.715277] [ 53.715578] nf_ct_net_init+0x224/0x3d0 [ 53.716117] ? __pfx_nf_ct_net_init+0x10/0x10 [ 53.716689] ops_init+0xbb/0x6b0 [ 53.717163] setup_net+0x3d9/0x990 [ 53.717631] ? down_read_killable+0x1d7/0x4e0 [ 53.718230] ? __pfx_setup_net+0x10/0x10 [ 53.718754] ? copy_net_ns+0x17c/0x770 [ 53.719289] copy_net_ns+0x321/0x770 [ 53.719768] create_new_namespaces+0x3f6/0xb30 [ 53.720392] unshare_nsproxy_namespaces+0xc1/0x200 [ 53.721037] ksys_unshare+0x44d/0x8e0 [ 53.721528] ? __pfx_ksys_unshare+0x10/0x10 [ 53.722109] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 53.722872] __x64_sys_unshare+0x31/0x40 [ 53.723389] do_syscall_64+0x3f/0x90 [ 53.723893] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 53.724531] RIP: 0033:0x7fef13ac10d7 [ 53.725032] 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 [ 53.727238] RSP: 002b:00007ffc23041528 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 53.728188] RAX: ffffffffffffffda RBX: 00007ffc23041b68 RCX: 00007fef13ac10d7 [ 53.729079] RDX: 00007fef13b2b41f RSI: 00007ffc230414c0 RDI: 0000000040000000 [ 53.729969] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffc230412d0 [ 53.730884] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fef13bd3bf0 [ 53.731747] R13: 00007ffc23041600 R14: 0000000000000000 R15: 00000000000000f8 [ 53.732663] [ 53.732992] irq event stamp: 10769 [ 53.733425] hardirqs last enabled at (10779): [] __up_console_sem+0x78/0x80 [ 53.734492] hardirqs last disabled at (10790): [] __up_console_sem+0x5d/0x80 [ 53.735577] softirqs last enabled at (10664): [] irq_exit_rcu+0x93/0xc0 [ 53.736627] softirqs last disabled at (10659): [] irq_exit_rcu+0x93/0xc0 [ 53.737660] ---[ end trace 0000000000000000 ]--- executing program [ 55.283518] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 57.331027] Bluetooth: hci0: command 0x041b tx timeout [ 59.378883] Bluetooth: hci0: command 0x040f tx timeout executing program [ 61.426984] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 05:11:23 Registers: info registers vcpu 0 RAX=0000000000000065 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507685 RDI=ffffffff87f27c00 RBP=ffffffff87f27bc0 RSP=ffff888016bdf5f0 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000065 R11=0000000000000001 R12=0000000000000065 R13=ffffffff87f27bc0 R14=0000000000000010 R15=ffffffff82507670 RIP=ffffffff825076dd 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 0000555555b4c400 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=000055e1991e54c8 CR3=0000000009570000 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=000000000002b219 RBX=0000000000000001 RCX=ffffffff844c4a0e RDX=0000000000000000 RSI=0000000000000000 RDI=ffffffff81288625 RBP=dffffc0000000000 RSP=ffff888008dcfe68 R8 =0000000000000001 R9 =ffffed100d9e69f8 R10=ffff88806cf34fc3 R11=0000000000000001 R12=ffffffff85d34a10 R13=1ffff110011b9fd2 R14=0000000000000000 R15=0000000000000000 RIP=ffffffff844c599f 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=00007fce07056100 CR3=000000000c692000 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=2036323a31313a35302037312079614d XMM01=5d3436383131362e33352020205b203a XMM02=75636578652d7a7973203a6d6d6f4320 XMM03=20202020202020572020202020202020 XMM04=6e2d3263722d302e342e362020202020 XMM05=3a6465746e69615420302e726f747563 XMM06=32203a4449502030203a555043205d34 XMM07=6e72656b2072656c6c616b7a79732036 XMM08=7475636578652d7a7973223d6d6d6f63 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000