[ 36.253373] sshd (209) used greatest stack depth: 24024 bytes left Debian GNU/Linux 11 syzkaller ttyS0 Warning: Permanently added '[localhost]:33490' (ECDSA) to the list of known hosts. 2023/05/18 03:59:15 fuzzer started 2023/05/18 03:59:15 dialing manager at localhost:44319 2023/05/18 03:59:15 checking machine... 2023/05/18 03:59:15 checking revisions... syzkaller login: [ 40.900723] kmemleak: Automatic memory scanning thread ended 2023/05/18 03:59:15 testing simple program... [ 40.967114] cgroup: Unknown subsys name 'net' [ 41.060568] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 53.400125] audit: type=1400 audit(1684382368.461:6): 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 [ 54.527737] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 54.529202] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 54.533337] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 54.536175] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 54.538174] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 54.539827] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 54.913328] ------------[ cut here ]------------ [ 54.914104] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 54.916044] WARNING: CPU: 1 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 54.917543] Modules linked in: [ 54.918088] CPU: 1 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 54.923059] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 54.924204] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 54.924923] 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 [ 54.927112] RSP: 0018:ffff888008d6fc00 EFLAGS: 00010282 [ 54.927802] RAX: 0000000000000000 RBX: ffff888010212c40 RCX: 0000000000000000 [ 54.928691] RDX: ffff8880158f0000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 54.929601] RBP: ffff888010212c54 R08: 0000000000000001 R09: 0000000000000000 [ 54.930497] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 54.931393] R13: ffffffff84e23fe0 R14: ffff888010212c48 R15: ffffffff84d74dc0 [ 54.932255] FS: 00005555572ee400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 54.933261] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.934018] CR2: 00007f3a0ed2e620 CR3: 000000000e54c000 CR4: 0000000000350ee0 [ 54.934915] Call Trace: [ 54.935244] [ 54.935578] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 54.936197] ipv4_frags_init_net+0x269/0x440 [ 54.936787] ops_init+0xbb/0x6b0 [ 54.937246] setup_net+0x3d9/0x990 [ 54.937737] ? down_read_killable+0x1d7/0x4e0 [ 54.938364] ? __pfx_setup_net+0x10/0x10 [ 54.938878] ? copy_net_ns+0x17c/0x770 [ 54.939423] copy_net_ns+0x321/0x770 [ 54.939907] create_new_namespaces+0x3f6/0xb30 [ 54.940525] unshare_nsproxy_namespaces+0xc1/0x200 [ 54.941149] ksys_unshare+0x44d/0x8e0 [ 54.941680] ? __pfx_ksys_unshare+0x10/0x10 [ 54.942235] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 54.942981] __x64_sys_unshare+0x31/0x40 [ 54.943528] do_syscall_64+0x3f/0x90 [ 54.944014] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 54.944696] RIP: 0033:0x7f20c71520d7 [ 54.945158] 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 [ 54.947331] RSP: 002b:00007ffd620099a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 54.948249] RAX: ffffffffffffffda RBX: 00007ffd62009fe8 RCX: 00007f20c71520d7 [ 54.949144] RDX: 00007f20c71bc41f RSI: 00007ffd62009940 RDI: 0000000040000000 [ 54.950062] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd62009750 [ 54.950950] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f20c7264bf0 [ 54.951838] R13: 00007ffd62009a80 R14: 0000000000000000 R15: 00000000000000f8 [ 54.952748] [ 54.953055] irq event stamp: 10917 [ 54.953526] hardirqs last enabled at (10929): [] __up_console_sem+0x78/0x80 [ 54.954610] hardirqs last disabled at (10940): [] __up_console_sem+0x5d/0x80 [ 54.955687] softirqs last enabled at (10480): [] irq_exit_rcu+0x93/0xc0 [ 54.956737] softirqs last disabled at (10467): [] irq_exit_rcu+0x93/0xc0 [ 54.957780] ---[ end trace 0000000000000000 ]--- [ 54.963403] ------------[ cut here ]------------ [ 54.964005] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 54.965732] WARNING: CPU: 1 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 54.966817] Modules linked in: [ 54.967226] CPU: 1 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 54.968393] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 54.969437] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 54.970101] 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 [ 54.972300] RSP: 0018:ffff888008d6fc00 EFLAGS: 00010282 [ 54.972960] RAX: 0000000000000000 RBX: ffff88800db2c840 RCX: 0000000000000000 [ 54.973860] RDX: ffff8880158f0000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 54.974774] RBP: ffff88800db2c854 R08: 0000000000000001 R09: 0000000000000000 [ 54.975675] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 54.976577] R13: ffffffff84e23fe0 R14: ffff88800db2c848 R15: ffffffff84da7d60 [ 54.977487] FS: 00005555572ee400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 54.978490] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.979205] CR2: 00007f3a0ed2e620 CR3: 000000000e54c000 CR4: 0000000000350ee0 [ 54.980103] Call Trace: [ 54.980464] [ 54.980768] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 54.981417] ipv6_frags_init_net+0x206/0x3c0 [ 54.982002] ops_init+0xbb/0x6b0 [ 54.982481] setup_net+0x3d9/0x990 [ 54.982942] ? down_read_killable+0x1d7/0x4e0 [ 54.983542] ? __pfx_setup_net+0x10/0x10 [ 54.984055] ? copy_net_ns+0x17c/0x770 [ 54.984596] copy_net_ns+0x321/0x770 [ 54.985087] create_new_namespaces+0x3f6/0xb30 [ 54.985712] unshare_nsproxy_namespaces+0xc1/0x200 [ 54.986380] ksys_unshare+0x44d/0x8e0 [ 54.986883] ? __pfx_ksys_unshare+0x10/0x10 [ 54.987463] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 54.988183] __x64_sys_unshare+0x31/0x40 [ 54.988730] do_syscall_64+0x3f/0x90 [ 54.989222] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 54.989902] RIP: 0033:0x7f20c71520d7 [ 54.990412] 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 [ 54.992591] RSP: 002b:00007ffd620099a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 54.993545] RAX: ffffffffffffffda RBX: 00007ffd62009fe8 RCX: 00007f20c71520d7 [ 54.994459] RDX: 00007f20c71bc41f RSI: 00007ffd62009940 RDI: 0000000040000000 [ 54.995351] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd62009750 [ 54.996207] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f20c7264bf0 [ 54.997091] R13: 00007ffd62009a80 R14: 0000000000000000 R15: 00000000000000f8 [ 54.998013] [ 54.998349] irq event stamp: 12611 [ 54.998793] hardirqs last enabled at (12621): [] __up_console_sem+0x78/0x80 [ 54.999859] hardirqs last disabled at (12632): [] __up_console_sem+0x5d/0x80 [ 55.000911] softirqs last enabled at (12162): [] irq_exit_rcu+0x93/0xc0 [ 55.001961] softirqs last disabled at (12157): [] irq_exit_rcu+0x93/0xc0 [ 55.002990] ---[ end trace 0000000000000000 ]--- [ 55.004449] ------------[ cut here ]------------ [ 55.005037] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 55.006925] WARNING: CPU: 1 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 55.007999] Modules linked in: [ 55.008438] CPU: 1 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 55.009599] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 55.010634] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 55.011303] 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 [ 55.013480] RSP: 0018:ffff888008d6fbf0 EFLAGS: 00010286 [ 55.014143] RAX: 0000000000000000 RBX: ffff88800db2ce40 RCX: 0000000000000000 [ 55.015033] RDX: ffff8880158f0000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 55.015917] RBP: ffff88800db2ce54 R08: 0000000000000001 R09: 0000000000000000 [ 55.016793] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 55.017681] R13: ffffffff84e23fe0 R14: ffff88800db2ce48 R15: ffffffff84db0aa0 [ 55.018575] FS: 00005555572ee400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 55.019567] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.020267] CR2: 00007f3a0ed2e620 CR3: 000000000e54c000 CR4: 0000000000350ee0 [ 55.021150] Call Trace: [ 55.021503] [ 55.021800] nf_ct_net_init+0x224/0x3d0 [ 55.022353] ? __pfx_nf_ct_net_init+0x10/0x10 [ 55.022925] ops_init+0xbb/0x6b0 [ 55.023401] setup_net+0x3d9/0x990 [ 55.023861] ? down_read_killable+0x1d7/0x4e0 [ 55.024460] ? __pfx_setup_net+0x10/0x10 [ 55.024970] ? copy_net_ns+0x17c/0x770 [ 55.025503] copy_net_ns+0x321/0x770 [ 55.026141] create_new_namespaces+0x3f6/0xb30 [ 55.026973] unshare_nsproxy_namespaces+0xc1/0x200 [ 55.027748] ksys_unshare+0x44d/0x8e0 [ 55.028379] ? __pfx_ksys_unshare+0x10/0x10 [ 55.029030] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 55.029969] __x64_sys_unshare+0x31/0x40 [ 55.030639] do_syscall_64+0x3f/0x90 [ 55.031225] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 55.032045] RIP: 0033:0x7f20c71520d7 [ 55.032658] 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 [ 55.035320] RSP: 002b:00007ffd620099a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 55.036465] RAX: ffffffffffffffda RBX: 00007ffd62009fe8 RCX: 00007f20c71520d7 [ 55.037546] RDX: 00007f20c71bc41f RSI: 00007ffd62009940 RDI: 0000000040000000 [ 55.038634] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd62009750 [ 55.039712] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f20c7264bf0 [ 55.040786] R13: 00007ffd62009a80 R14: 0000000000000000 R15: 00000000000000f8 [ 55.041890] [ 55.042323] irq event stamp: 13395 [ 55.042841] hardirqs last enabled at (13405): [] __up_console_sem+0x78/0x80 [ 55.043899] hardirqs last disabled at (13416): [] __up_console_sem+0x5d/0x80 [ 55.044958] softirqs last enabled at (13288): [] irq_exit_rcu+0x93/0xc0 [ 55.046020] softirqs last disabled at (13283): [] irq_exit_rcu+0x93/0xc0 [ 55.047065] ---[ end trace 0000000000000000 ]--- executing program [ 56.609998] Bluetooth: hci0: command 0x0409 tx timeout [ 58.656330] Bluetooth: hci0: command 0x041b tx timeout executing program [ 60.704366] Bluetooth: hci0: command 0x040f tx timeout executing program [ 62.753243] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 03:59:17 Registers: info registers vcpu 0 RAX=000000000001c4a1 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=00007fcbc1af2438 CR3=000000000f70e000 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=2039323a39353a33302038312079614d XMM01=5d3334353731392e34352020205b203a XMM02=646f4d205d3334353731392e34352020 XMM03=6b7a79732039323a39353a3330203831 XMM04=7379735f74656e5f7265747369676572 XMM05=732f74656e20746120383532203a4449 XMM06=57205d3434303631392e34352020205b XMM07=79732039323a39353a33302038312079 XMM08=7475636578652d7a7973223d6d6d6f63 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000000000065 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507f85 RDI=ffffffff87f2dc00 RBP=ffffffff87f2dbc0 RSP=ffff888008d6f5f0 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000065 R11=0000000000000001 R12=0000000000000065 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 00005555572ee400 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=00007f3a0ed2e620 CR3=000000000e54c000 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