syzkaller login: [ 48.208692] sshd (226) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:53870' (ECDSA) to the list of known hosts. 2023/05/16 11:33:25 fuzzer started 2023/05/16 11:33:25 dialing manager at localhost:35573 2023/05/16 11:33:25 checking machine... 2023/05/16 11:33:25 checking revisions... [ 49.395661] kmemleak: Automatic memory scanning thread ended 2023/05/16 11:33:26 testing simple program... [ 49.468773] cgroup: Unknown subsys name 'net' [ 49.578272] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 63.494962] audit: type=1400 audit(1684236820.169:6): 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 executing program [ 64.591545] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 64.593160] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 64.594682] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 64.599113] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 64.602563] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 64.603881] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 65.020176] ------------[ cut here ]------------ [ 65.020976] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 65.022900] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 65.023964] Modules linked in: [ 65.024386] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 65.026361] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 65.028832] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 65.030337] 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 [ 65.032538] RSP: 0018:ffff88801f2efc00 EFLAGS: 00010282 [ 65.033167] RAX: 0000000000000000 RBX: ffff88800f58a440 RCX: 0000000000000000 [ 65.034026] RDX: ffff888015b31b40 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 65.034887] RBP: ffff88800f58a454 R08: 0000000000000001 R09: 0000000000000000 [ 65.035738] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 65.036653] R13: ffffffff84e223a0 R14: ffff88800f58a448 R15: ffffffff84d73340 [ 65.037543] FS: 0000555555eaa400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 65.038533] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 65.039240] CR2: 00007fb2e26eb1f0 CR3: 000000000fd62000 CR4: 0000000000350ef0 [ 65.040143] Call Trace: [ 65.040504] [ 65.040822] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 65.041454] ipv4_frags_init_net+0x269/0x440 [ 65.042024] ops_init+0xbb/0x6b0 [ 65.042497] setup_net+0x3d9/0x990 [ 65.042950] ? down_read_killable+0x1d7/0x4e0 [ 65.043555] ? __pfx_setup_net+0x10/0x10 [ 65.044077] ? copy_net_ns+0x17c/0x770 [ 65.044609] copy_net_ns+0x321/0x770 [ 65.045068] create_new_namespaces+0x3f6/0xb30 [ 65.045697] unshare_nsproxy_namespaces+0xc1/0x200 [ 65.046352] ksys_unshare+0x44d/0x8e0 [ 65.046848] ? __pfx_ksys_unshare+0x10/0x10 [ 65.047425] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 65.048145] __x64_sys_unshare+0x31/0x40 [ 65.048711] do_syscall_64+0x3f/0x90 [ 65.049200] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 65.049886] RIP: 0033:0x7efd504100d7 [ 65.050394] 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 [ 65.052643] RSP: 002b:00007ffdc5bb9088 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 65.053548] RAX: ffffffffffffffda RBX: 00007ffdc5bb96c8 RCX: 00007efd504100d7 [ 65.054387] RDX: 00007efd5047a41f RSI: 00007ffdc5bb9020 RDI: 0000000040000000 [ 65.055189] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffdc5bb8e30 [ 65.056027] R10: 0000000000000000 R11: 0000000000000206 R12: 00007efd50522bf0 [ 65.056897] R13: 00007ffdc5bb9160 R14: 0000000000000000 R15: 00000000000000f8 [ 65.057814] [ 65.058111] irq event stamp: 8491 [ 65.058571] hardirqs last enabled at (8503): [] __up_console_sem+0x78/0x80 [ 65.059633] hardirqs last disabled at (8514): [] __up_console_sem+0x5d/0x80 [ 65.060707] softirqs last enabled at (8298): [] irq_exit_rcu+0x93/0xc0 [ 65.061682] softirqs last disabled at (8293): [] irq_exit_rcu+0x93/0xc0 [ 65.062670] ---[ end trace 0000000000000000 ]--- [ 65.068628] ------------[ cut here ]------------ [ 65.069206] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 65.070893] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 65.071990] Modules linked in: [ 65.072411] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 65.073550] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 65.074587] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 65.075230] 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 [ 65.077424] RSP: 0018:ffff88801f2efc00 EFLAGS: 00010282 [ 65.078080] RAX: 0000000000000000 RBX: ffff88800d5f4240 RCX: 0000000000000000 [ 65.078966] RDX: ffff888015b31b40 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 65.079861] RBP: ffff88800d5f4254 R08: 0000000000000001 R09: 0000000000000000 [ 65.080776] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 65.081667] R13: ffffffff84e223a0 R14: ffff88800d5f4248 R15: ffffffff84da62e0 [ 65.082571] FS: 0000555555eaa400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 65.083584] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 65.084304] CR2: 00007fb2e26eb1f0 CR3: 000000000fd62000 CR4: 0000000000350ef0 [ 65.085227] Call Trace: [ 65.085589] [ 65.085898] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 65.086541] ipv6_frags_init_net+0x206/0x3c0 [ 65.087111] ops_init+0xbb/0x6b0 [ 65.087598] setup_net+0x3d9/0x990 [ 65.088055] ? down_read_killable+0x1d7/0x4e0 [ 65.088689] ? __pfx_setup_net+0x10/0x10 [ 65.089212] ? copy_net_ns+0x17c/0x770 [ 65.089750] copy_net_ns+0x321/0x770 [ 65.090235] create_new_namespaces+0x3f6/0xb30 [ 65.090901] unshare_nsproxy_namespaces+0xc1/0x200 [ 65.091580] ksys_unshare+0x44d/0x8e0 [ 65.092073] ? __pfx_ksys_unshare+0x10/0x10 [ 65.092656] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 65.093414] __x64_sys_unshare+0x31/0x40 [ 65.093939] do_syscall_64+0x3f/0x90 [ 65.094457] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 65.095105] RIP: 0033:0x7efd504100d7 [ 65.095605] 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 [ 65.097840] RSP: 002b:00007ffdc5bb9088 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 65.098828] RAX: ffffffffffffffda RBX: 00007ffdc5bb96c8 RCX: 00007efd504100d7 [ 65.099739] RDX: 00007efd5047a41f RSI: 00007ffdc5bb9020 RDI: 0000000040000000 [ 65.100648] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffdc5bb8e30 [ 65.101559] R10: 0000000000000000 R11: 0000000000000206 R12: 00007efd50522bf0 [ 65.102464] R13: 00007ffdc5bb9160 R14: 0000000000000000 R15: 00000000000000f8 [ 65.103392] [ 65.103706] irq event stamp: 11047 [ 65.104144] hardirqs last enabled at (11057): [] __up_console_sem+0x78/0x80 [ 65.105261] hardirqs last disabled at (11068): [] __up_console_sem+0x5d/0x80 [ 65.106346] softirqs last enabled at (10850): [] irq_exit_rcu+0x93/0xc0 [ 65.107412] softirqs last disabled at (10845): [] irq_exit_rcu+0x93/0xc0 [ 65.108489] ---[ end trace 0000000000000000 ]--- [ 65.109880] ------------[ cut here ]------------ [ 65.110505] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 65.112432] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 65.113526] Modules linked in: [ 65.113933] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 65.115099] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 65.116115] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 65.116808] 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 [ 65.118994] RSP: 0018:ffff88801f2efbf0 EFLAGS: 00010286 [ 65.119691] RAX: 0000000000000000 RBX: ffff888016661440 RCX: 0000000000000000 [ 65.120592] RDX: ffff888015b31b40 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 65.121487] RBP: ffff888016661454 R08: 0000000000000001 R09: 0000000000000000 [ 65.122377] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 65.123245] R13: ffffffff84e223a0 R14: ffff888016661448 R15: ffffffff84daf020 [ 65.124154] FS: 0000555555eaa400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 65.125178] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 65.125930] CR2: 00007fb2e26eb1f0 CR3: 000000000fd62000 CR4: 0000000000350ef0 [ 65.126851] Call Trace: [ 65.127182] [ 65.127522] nf_ct_net_init+0x224/0x3d0 [ 65.128052] ? __pfx_nf_ct_net_init+0x10/0x10 [ 65.128683] ops_init+0xbb/0x6b0 [ 65.129140] setup_net+0x3d9/0x990 [ 65.129632] ? down_read_killable+0x1d7/0x4e0 [ 65.130210] ? __pfx_setup_net+0x10/0x10 [ 65.130767] ? copy_net_ns+0x17c/0x770 [ 65.131341] copy_net_ns+0x321/0x770 [ 65.131836] create_new_namespaces+0x3f6/0xb30 [ 65.132466] unshare_nsproxy_namespaces+0xc1/0x200 [ 65.133107] ksys_unshare+0x44d/0x8e0 [ 65.133630] ? __pfx_ksys_unshare+0x10/0x10 [ 65.134173] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 65.134910] __x64_sys_unshare+0x31/0x40 [ 65.135460] do_syscall_64+0x3f/0x90 [ 65.135929] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 65.136613] RIP: 0033:0x7efd504100d7 [ 65.137075] 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 [ 65.139244] RSP: 002b:00007ffdc5bb9088 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 65.140175] RAX: ffffffffffffffda RBX: 00007ffdc5bb96c8 RCX: 00007efd504100d7 [ 65.141073] RDX: 00007efd5047a41f RSI: 00007ffdc5bb9020 RDI: 0000000040000000 [ 65.141946] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffdc5bb8e30 [ 65.142825] R10: 0000000000000000 R11: 0000000000000206 R12: 00007efd50522bf0 [ 65.143708] R13: 00007ffdc5bb9160 R14: 0000000000000000 R15: 00000000000000f8 [ 65.144640] [ 65.144939] irq event stamp: 11885 [ 65.145409] hardirqs last enabled at (11897): [] __up_console_sem+0x78/0x80 [ 65.146453] hardirqs last disabled at (11908): [] __up_console_sem+0x5d/0x80 [ 65.147497] softirqs last enabled at (11792): [] irq_exit_rcu+0x93/0xc0 [ 65.148541] softirqs last disabled at (11787): [] irq_exit_rcu+0x93/0xc0 [ 65.149580] ---[ end trace 0000000000000000 ]--- [ 66.675970] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 68.723387] Bluetooth: hci0: command 0x041b tx timeout executing program [ 70.770381] Bluetooth: hci0: command 0x040f tx timeout [ 72.818390] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 11:33:28 Registers: info registers vcpu 0 RAX=0000000000000029 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507685 RDI=ffffffff87f27c00 RBP=ffffffff87f27bc0 RSP=ffff88801f2ef618 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000029 R11=0000000000000001 R12=0000000000000029 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 0000555555eaa400 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=00007fb2e26eb1f0 CR3=000000000fd62000 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=000000000001ea8b 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=00000206 [-----P-] 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=00007f1aa8b942e0 CR3=00000000164d6000 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=1f74c79b5ff33a8a4c4ce1c84309dcd8 XMM02=6b1e99b806172e3b00000000000aea28 XMM03=ac8bc31478ec851100000000000aefa0 XMM04=d35f14e95510c1f60000000000112fc0 XMM05=d3fdd5f48436fbd700000000000aead0 XMM06=cc7590dc31c7ef8f00000000000ae988 XMM07=a1fcdcf819d7e1e500000000000ae728 XMM08=44495f474f4c5359530069253d595449 XMM09=00000000000000000000000000000000 XMM10=00002000000000000000200000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000