syzkaller login: [ 56.785633] sshd (212) used greatest stack depth: 24160 bytes left Warning: Permanently added '[localhost]:9337' (ECDSA) to the list of known hosts. 2023/05/17 08:55:21 fuzzer started 2023/05/17 08:55:21 dialing manager at localhost:35573 2023/05/17 08:55:21 checking machine... 2023/05/17 08:55:21 checking revisions... [ 60.356710] kmemleak: Automatic memory scanning thread ended 2023/05/17 08:55:21 testing simple program... [ 60.412637] cgroup: Unknown subsys name 'net' [ 60.475862] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 72.837935] audit: type=1400 audit(1684313734.358:6): 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 [ 73.983357] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 73.985591] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 73.987024] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 73.989340] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 73.990765] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 73.991629] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 74.294032] ------------[ cut here ]------------ [ 74.294552] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 74.295663] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 74.296443] Modules linked in: [ 74.296745] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 74.298052] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 74.299597] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 74.300370] 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 [ 74.302104] RSP: 0018:ffff88801f17fc00 EFLAGS: 00010282 [ 74.302575] RAX: 0000000000000000 RBX: ffff888009c97040 RCX: 0000000000000000 [ 74.303133] RDX: ffff88800d098000 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 74.303711] RBP: ffff888009c97054 R08: 0000000000000001 R09: 0000000000000000 [ 74.304322] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 74.304917] R13: ffffffff84e223a0 R14: ffff888009c97048 R15: ffffffff84d73340 [ 74.305546] FS: 0000555557095400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 74.306210] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.306714] CR2: 00007fa81f0a36f4 CR3: 000000000fd8a000 CR4: 0000000000350ef0 [ 74.307295] Call Trace: [ 74.307513] [ 74.307708] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 74.308115] ipv4_frags_init_net+0x269/0x440 [ 74.308504] ops_init+0xbb/0x6b0 [ 74.308803] setup_net+0x3d9/0x990 [ 74.309106] ? down_read_killable+0x1d7/0x4e0 [ 74.309565] ? __pfx_setup_net+0x10/0x10 [ 74.309901] ? copy_net_ns+0x17c/0x770 [ 74.310255] copy_net_ns+0x321/0x770 [ 74.310574] create_new_namespaces+0x3f6/0xb30 [ 74.310958] unshare_nsproxy_namespaces+0xc1/0x200 [ 74.311381] ksys_unshare+0x44d/0x8e0 [ 74.311716] ? __pfx_ksys_unshare+0x10/0x10 [ 74.312089] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 74.312592] __x64_sys_unshare+0x31/0x40 [ 74.312927] do_syscall_64+0x3f/0x90 [ 74.313255] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 74.313696] RIP: 0033:0x7feae63100d7 [ 74.313991] 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 [ 74.315420] RSP: 002b:00007ffd1cf266d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 74.316055] RAX: ffffffffffffffda RBX: 00007ffd1cf26d18 RCX: 00007feae63100d7 [ 74.316668] RDX: 00007feae637a41f RSI: 00007ffd1cf26670 RDI: 0000000040000000 [ 74.317316] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd1cf26480 [ 74.317968] R10: 0000000000000000 R11: 0000000000000206 R12: 00007feae6422bf0 [ 74.318559] R13: 00007ffd1cf267b0 R14: 0000000000000000 R15: 00000000000000f8 [ 74.319123] [ 74.319342] irq event stamp: 8009 [ 74.319629] hardirqs last enabled at (8019): [] __up_console_sem+0x78/0x80 [ 74.320374] hardirqs last disabled at (8036): [] __up_console_sem+0x5d/0x80 [ 74.321075] softirqs last enabled at (8032): [] irq_exit_rcu+0x93/0xc0 [ 74.321818] softirqs last disabled at (8027): [] irq_exit_rcu+0x93/0xc0 [ 74.322576] ---[ end trace 0000000000000000 ]--- [ 74.327326] ------------[ cut here ]------------ [ 74.327809] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 74.328934] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 74.329668] Modules linked in: [ 74.329924] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 74.330641] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 74.331285] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 74.331711] 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 [ 74.333191] RSP: 0018:ffff88801f17fc00 EFLAGS: 00010282 [ 74.333672] RAX: 0000000000000000 RBX: ffff888014028240 RCX: 0000000000000000 [ 74.334286] RDX: ffff88800d098000 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 74.334835] RBP: ffff888014028254 R08: 0000000000000001 R09: 0000000000000000 [ 74.335435] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 74.336007] R13: ffffffff84e223a0 R14: ffff888014028248 R15: ffffffff84da62e0 [ 74.336741] FS: 0000555557095400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 74.337544] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.338024] CR2: 00007fa81f0a36f4 CR3: 000000000fd8a000 CR4: 0000000000350ef0 [ 74.338596] Call Trace: [ 74.338813] [ 74.339008] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 74.339430] ipv6_frags_init_net+0x206/0x3c0 [ 74.339801] ops_init+0xbb/0x6b0 [ 74.340096] setup_net+0x3d9/0x990 [ 74.340410] ? down_read_killable+0x1d7/0x4e0 [ 74.340776] ? __pfx_setup_net+0x10/0x10 [ 74.341107] ? copy_net_ns+0x17c/0x770 [ 74.341504] copy_net_ns+0x321/0x770 [ 74.341819] create_new_namespaces+0x3f6/0xb30 [ 74.342215] unshare_nsproxy_namespaces+0xc1/0x200 [ 74.342633] ksys_unshare+0x44d/0x8e0 [ 74.342979] ? __pfx_ksys_unshare+0x10/0x10 [ 74.343356] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 74.343820] __x64_sys_unshare+0x31/0x40 [ 74.344174] do_syscall_64+0x3f/0x90 [ 74.344485] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 74.344898] RIP: 0033:0x7feae63100d7 [ 74.345226] 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 [ 74.346668] RSP: 002b:00007ffd1cf266d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 74.347280] RAX: ffffffffffffffda RBX: 00007ffd1cf26d18 RCX: 00007feae63100d7 [ 74.347826] RDX: 00007feae637a41f RSI: 00007ffd1cf26670 RDI: 0000000040000000 [ 74.348430] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd1cf26480 [ 74.349026] R10: 0000000000000000 R11: 0000000000000206 R12: 00007feae6422bf0 [ 74.349662] R13: 00007ffd1cf267b0 R14: 0000000000000000 R15: 00000000000000f8 [ 74.350255] [ 74.350456] irq event stamp: 9929 [ 74.350745] hardirqs last enabled at (9939): [] __up_console_sem+0x78/0x80 [ 74.351477] hardirqs last disabled at (9950): [] __up_console_sem+0x5d/0x80 [ 74.352191] softirqs last enabled at (9518): [] irq_exit_rcu+0x93/0xc0 [ 74.352854] softirqs last disabled at (9509): [] irq_exit_rcu+0x93/0xc0 [ 74.353599] ---[ end trace 0000000000000000 ]--- [ 74.354689] ------------[ cut here ]------------ [ 74.355089] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 74.356490] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 74.357253] Modules linked in: [ 74.357540] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 74.358302] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 74.358959] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 74.359387] 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 [ 74.360752] RSP: 0018:ffff88801f17fbf0 EFLAGS: 00010286 [ 74.361206] RAX: 0000000000000000 RBX: ffff888014029040 RCX: 0000000000000000 [ 74.361767] RDX: ffff88800d098000 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 74.362337] RBP: ffff888014029054 R08: 0000000000000001 R09: 0000000000000000 [ 74.362877] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 74.363442] R13: ffffffff84e223a0 R14: ffff888014029048 R15: ffffffff84daf020 [ 74.364008] FS: 0000555557095400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 74.364696] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.365193] CR2: 00007fa81f0a36f4 CR3: 000000000fd8a000 CR4: 0000000000350ef0 [ 74.365818] Call Trace: [ 74.366065] [ 74.366311] nf_ct_net_init+0x224/0x3d0 [ 74.366682] ? __pfx_nf_ct_net_init+0x10/0x10 [ 74.367083] ops_init+0xbb/0x6b0 [ 74.367418] setup_net+0x3d9/0x990 [ 74.367708] ? down_read_killable+0x1d7/0x4e0 [ 74.368076] ? __pfx_setup_net+0x10/0x10 [ 74.368414] ? copy_net_ns+0x17c/0x770 [ 74.368735] copy_net_ns+0x321/0x770 [ 74.369048] create_new_namespaces+0x3f6/0xb30 [ 74.369512] unshare_nsproxy_namespaces+0xc1/0x200 [ 74.369934] ksys_unshare+0x44d/0x8e0 [ 74.370298] ? __pfx_ksys_unshare+0x10/0x10 [ 74.370670] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 74.371139] __x64_sys_unshare+0x31/0x40 [ 74.371477] do_syscall_64+0x3f/0x90 [ 74.371770] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 74.372199] RIP: 0033:0x7feae63100d7 [ 74.372496] 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 [ 74.373936] RSP: 002b:00007ffd1cf266d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 74.374615] RAX: ffffffffffffffda RBX: 00007ffd1cf26d18 RCX: 00007feae63100d7 [ 74.375252] RDX: 00007feae637a41f RSI: 00007ffd1cf26670 RDI: 0000000040000000 [ 74.375808] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd1cf26480 [ 74.376419] R10: 0000000000000000 R11: 0000000000000206 R12: 00007feae6422bf0 [ 74.376985] R13: 00007ffd1cf267b0 R14: 0000000000000000 R15: 00000000000000f8 [ 74.377577] [ 74.377814] irq event stamp: 10739 [ 74.378140] hardirqs last enabled at (10749): [] __up_console_sem+0x78/0x80 [ 74.378904] hardirqs last disabled at (10760): [] __up_console_sem+0x5d/0x80 [ 74.379616] softirqs last enabled at (10252): [] irq_exit_rcu+0x93/0xc0 [ 74.380269] softirqs last disabled at (10197): [] irq_exit_rcu+0x93/0xc0 [ 74.380909] ---[ end trace 0000000000000000 ]--- executing program [ 76.013856] Bluetooth: hci0: command 0x0409 tx timeout [ 78.062058] Bluetooth: hci0: command 0x041b tx timeout executing program [ 80.110358] Bluetooth: hci0: command 0x040f tx timeout executing program [ 82.157228] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 08:55:11 Registers: info registers vcpu 0 RAX=0000000000000030 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507685 RDI=ffffffff87f27c00 RBP=ffffffff87f27bc0 RSP=ffff88801f17f618 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000030 R11=0000000000000001 R12=0000000000000030 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 0000555557095400 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=00007fa81f0a36f4 CR3=000000000fd8a000 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=000000002f169e88 RBX=1ffff11002d53fd1 RCX=0000000000000000 RDX=0000000000000001 RSI=0000000000000081 RDI=000055952f169e90 RBP=0000000000000000 RSP=ffff888016a9fe50 R8 =000055952f169e68 R9 =0000000000000000 R10=0000000000000000 R11=0000000000000000 R12=0000000000000001 R13=0000000000000081 R14=000055952f169e90 R15=000055952f169e68 RIP=ffffffff81405124 RFL=00000293 [--S-A-C] 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 00007f484cda2700 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=00007fb720e14150 CR3=000000000f40e000 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=ffffffffffffff00ffffffffffffffff XMM02=00000000000000000000000000000000 XMM03=435020647261646e61745320554d4551 XMM04=636f72703d7373616c63742030733a74 XMM05=3a755f6d65747379733d747865746e6f XMM06=5f6d65747379733a755f6d6574737973 XMM07=00000000000000000000000000000000 XMM08=2b6c74637379735f74656e5f72657473 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000