[ 39.849711] sshd (210) used greatest stack depth: 24016 bytes left Debian GNU/Linux 11 syzkaller ttyS0 Warning: Permanently added '[localhost]:20334' (ECDSA) to the list of known hosts. 2023/05/17 06:34:32 fuzzer started 2023/05/17 06:34:33 dialing manager at localhost:35573 2023/05/17 06:34:33 checking machine... 2023/05/17 06:34:33 checking revisions... syzkaller login: [ 45.098397] kmemleak: Automatic memory scanning thread ended 2023/05/17 06:34:33 testing simple program... [ 45.165197] cgroup: Unknown subsys name 'net' [ 45.229575] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 58.421623] audit: type=1400 audit(1684305286.562:6): 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 [ 59.554153] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 59.555957] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 59.558562] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 59.561304] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 59.563391] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 59.564473] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 59.886477] ------------[ cut here ]------------ [ 59.887372] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 59.889407] WARNING: CPU: 1 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 59.890514] Modules linked in: [ 59.890947] CPU: 1 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 59.895753] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 59.896844] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 59.897514] 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 [ 59.899836] RSP: 0018:ffff88801a357c00 EFLAGS: 00010282 [ 59.900511] RAX: 0000000000000000 RBX: ffff88800eec2840 RCX: 0000000000000000 [ 59.901454] RDX: ffff88800dc39b40 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 59.902417] RBP: ffff88800eec2854 R08: 0000000000000001 R09: 0000000000000000 [ 59.903365] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 59.904277] R13: ffffffff84e223a0 R14: ffff88800eec2848 R15: ffffffff84d73340 [ 59.905194] FS: 000055555685b400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 59.906239] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.906991] CR2: 00007f6b4e19f6f4 CR3: 000000000e4ec000 CR4: 0000000000350ee0 [ 59.907904] Call Trace: [ 59.908233] [ 59.908529] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 59.909168] ipv4_frags_init_net+0x269/0x440 [ 59.909736] ops_init+0xbb/0x6b0 [ 59.910204] setup_net+0x3d9/0x990 [ 59.910662] ? down_read_killable+0x1d7/0x4e0 [ 59.911247] ? __pfx_setup_net+0x10/0x10 [ 59.911752] ? copy_net_ns+0x17c/0x770 [ 59.912276] copy_net_ns+0x321/0x770 [ 59.912751] create_new_namespaces+0x3f6/0xb30 [ 59.913363] unshare_nsproxy_namespaces+0xc1/0x200 [ 59.914016] ksys_unshare+0x44d/0x8e0 [ 59.914503] ? __pfx_ksys_unshare+0x10/0x10 [ 59.915090] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 59.915796] __x64_sys_unshare+0x31/0x40 [ 59.916354] do_syscall_64+0x3f/0x90 [ 59.916858] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 59.917497] RIP: 0033:0x7fc844caa0d7 [ 59.918020] 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 [ 59.920167] RSP: 002b:00007fff7920fa18 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 59.921100] RAX: ffffffffffffffda RBX: 00007fff79210058 RCX: 00007fc844caa0d7 [ 59.922000] RDX: 00007fc844d1441f RSI: 00007fff7920f9b0 RDI: 0000000040000000 [ 59.922930] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fff7920f7c0 [ 59.923783] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fc844dbcbf0 [ 59.924667] R13: 00007fff7920faf0 R14: 0000000000000000 R15: 00000000000000f8 [ 59.925564] [ 59.925896] irq event stamp: 8305 [ 59.926316] hardirqs last enabled at (8315): [] __up_console_sem+0x78/0x80 [ 59.927351] hardirqs last disabled at (8326): [] __up_console_sem+0x5d/0x80 [ 59.928401] softirqs last enabled at (7916): [] irq_exit_rcu+0x93/0xc0 [ 59.929422] softirqs last disabled at (7911): [] irq_exit_rcu+0x93/0xc0 [ 59.930462] ---[ end trace 0000000000000000 ]--- [ 59.935486] ------------[ cut here ]------------ [ 59.935994] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 59.937331] WARNING: CPU: 0 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 59.938127] Modules linked in: [ 59.938432] CPU: 0 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 59.939292] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 59.940041] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 59.940517] 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 [ 59.942132] RSP: 0018:ffff88801a357c00 EFLAGS: 00010282 [ 59.942559] RAX: 0000000000000000 RBX: ffff88800ed27240 RCX: 0000000000000000 [ 59.943086] RDX: ffff88800dc39b40 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 59.943590] RBP: ffff88800ed27254 R08: 0000000000000001 R09: 0000000000000000 [ 59.944112] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 59.944616] R13: ffffffff84e223a0 R14: ffff88800ed27248 R15: ffffffff84da62e0 [ 59.945138] FS: 000055555685b400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 59.945708] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.946141] CR2: 00007f731a9590a8 CR3: 000000000e4ec000 CR4: 0000000000350ef0 [ 59.946645] Call Trace: [ 59.946856] [ 59.947031] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 59.947390] ipv6_frags_init_net+0x206/0x3c0 [ 59.947709] ops_init+0xbb/0x6b0 [ 59.947988] setup_net+0x3d9/0x990 [ 59.948246] ? down_read_killable+0x1d7/0x4e0 [ 59.948573] ? __pfx_setup_net+0x10/0x10 [ 59.948886] ? copy_net_ns+0x17c/0x770 [ 59.949184] copy_net_ns+0x321/0x770 [ 59.949462] create_new_namespaces+0x3f6/0xb30 [ 59.949809] unshare_nsproxy_namespaces+0xc1/0x200 [ 59.950189] ksys_unshare+0x44d/0x8e0 [ 59.950468] ? __pfx_ksys_unshare+0x10/0x10 [ 59.950779] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 59.951222] __x64_sys_unshare+0x31/0x40 [ 59.951522] do_syscall_64+0x3f/0x90 [ 59.951791] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 59.952179] RIP: 0033:0x7fc844caa0d7 [ 59.952445] 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 [ 59.953698] RSP: 002b:00007fff7920fa18 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 59.954247] RAX: ffffffffffffffda RBX: 00007fff79210058 RCX: 00007fc844caa0d7 [ 59.954734] RDX: 00007fc844d1441f RSI: 00007fff7920f9b0 RDI: 0000000040000000 [ 59.955242] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fff7920f7c0 [ 59.955734] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fc844dbcbf0 [ 59.956248] R13: 00007fff7920faf0 R14: 0000000000000000 R15: 00000000000000f8 [ 59.956750] [ 59.956944] irq event stamp: 10209 [ 59.957194] hardirqs last enabled at (10219): [] __up_console_sem+0x78/0x80 [ 59.957791] hardirqs last disabled at (10228): [] __up_console_sem+0x5d/0x80 [ 59.958406] softirqs last enabled at (9726): [] irq_exit_rcu+0x93/0xc0 [ 59.959005] softirqs last disabled at (9717): [] irq_exit_rcu+0x93/0xc0 [ 59.959586] ---[ end trace 0000000000000000 ]--- executing program [ 59.961151] ------------[ cut here ]------------ [ 59.961511] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 59.963326] WARNING: CPU: 0 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 59.964022] Modules linked in: [ 59.964269] CPU: 0 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 59.965064] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 59.965660] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 59.966140] 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 [ 59.967536] RSP: 0018:ffff88801a357bf0 EFLAGS: 00010286 [ 59.968012] RAX: 0000000000000000 RBX: ffff88800ed27640 RCX: 0000000000000000 [ 59.968537] RDX: ffff88800dc39b40 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 59.969135] RBP: ffff88800ed27654 R08: 0000000000000001 R09: 0000000000000000 [ 59.969643] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 59.970248] R13: ffffffff84e223a0 R14: ffff88800ed27648 R15: ffffffff84daf020 [ 59.970755] FS: 000055555685b400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 59.971418] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.971794] CR2: 00007f731a9590a8 CR3: 000000000e4ec000 CR4: 0000000000350ef0 [ 59.972400] Call Trace: [ 59.972574] [ 59.972731] nf_ct_net_init+0x224/0x3d0 [ 59.973093] ? __pfx_nf_ct_net_init+0x10/0x10 [ 59.973397] ops_init+0xbb/0x6b0 [ 59.973630] setup_net+0x3d9/0x990 [ 59.974000] ? down_read_killable+0x1d7/0x4e0 [ 59.974300] ? __pfx_setup_net+0x10/0x10 [ 59.974566] ? copy_net_ns+0x17c/0x770 [ 59.974929] copy_net_ns+0x321/0x770 [ 59.975185] create_new_namespaces+0x3f6/0xb30 [ 59.975491] unshare_nsproxy_namespaces+0xc1/0x200 [ 59.975813] ksys_unshare+0x44d/0x8e0 [ 59.976173] ? __pfx_ksys_unshare+0x10/0x10 [ 59.976460] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 59.976934] __x64_sys_unshare+0x31/0x40 [ 59.977210] do_syscall_64+0x3f/0x90 [ 59.977458] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 59.977802] RIP: 0033:0x7fc844caa0d7 [ 59.978185] 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 [ 59.979363] RSP: 002b:00007fff7920fa18 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 59.979935] RAX: ffffffffffffffda RBX: 00007fff79210058 RCX: 00007fc844caa0d7 [ 59.980380] RDX: 00007fc844d1441f RSI: 00007fff7920f9b0 RDI: 0000000040000000 [ 59.980944] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fff7920f7c0 [ 59.981397] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fc844dbcbf0 [ 59.981965] R13: 00007fff7920faf0 R14: 0000000000000000 R15: 00000000000000f8 [ 59.982427] [ 59.982584] irq event stamp: 12979 [ 59.982816] hardirqs last enabled at (12989): [] __up_console_sem+0x78/0x80 [ 59.983454] hardirqs last disabled at (13064): [] __up_console_sem+0x5d/0x80 [ 59.984087] softirqs last enabled at (13130): [] irq_exit_rcu+0x93/0xc0 [ 59.984618] softirqs last disabled at (13073): [] irq_exit_rcu+0x93/0xc0 [ 59.985244] ---[ end trace 0000000000000000 ]--- [ 61.634482] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 63.680919] Bluetooth: hci0: command 0x041b tx timeout [ 65.728908] Bluetooth: hci0: command 0x040f tx timeout executing program [ 67.776890] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 06:34:41 Registers: info registers vcpu 0 RAX=0000000000020a91 RBX=0000000000000000 RCX=ffffffff844c4a0e RDX=0000000000000000 RSI=0000000000000000 RDI=ffffffff81288625 RBP=dffffc0000000000 RSP=ffffffff85407e10 R8 =0000000000000001 R9 =ffffed100d9c69f8 R10=ffff88806ce34fc3 R11=0000000000000001 R12=ffffffff85d34a10 R13=1ffffffff0a80fc7 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 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=00007f731a8caa80 CR3=000000000e902000 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=2038343a34333a36302037312079614d XMM01=5d3734393039382e39352020205b203a XMM02=75636578652d7a7973203a6d6d6f4320 XMM03=20202020202020572020202020202020 XMM04=6e2d3263722d302e342e362020202020 XMM05=3a6465746e69615420302e726f747563 XMM06=32203a4449502031203a555043205d37 XMM07=6e72656b2072656c6c616b7a79732038 XMM08=7475636578652d7a7973223d6d6d6f63 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=000000000000002d RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507685 RDI=ffffffff87f27c00 RBP=ffffffff87f27bc0 RSP=ffff88801a3575f0 R8 =0000000000000001 R9 =000000000000000a R10=000000000000002d R11=0000000000000001 R12=000000000000002d 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 000055555685b400 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=00007f6b4e19f6f4 CR3=000000000e4ec000 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