syzkaller login: [ 41.835637] sshd (217) used greatest stack depth: 24160 bytes left Warning: Permanently added '[localhost]:8208' (ECDSA) to the list of known hosts. 2023/05/16 15:46:09 fuzzer started 2023/05/16 15:46:10 dialing manager at localhost:35573 2023/05/16 15:46:10 checking machine... 2023/05/16 15:46:10 checking revisions... [ 43.905154] kmemleak: Automatic memory scanning thread ended 2023/05/16 15:46:10 testing simple program... [ 43.968306] cgroup: Unknown subsys name 'net' [ 44.029412] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 56.257254] audit: type=1400 audit(1684251982.577:6): 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 [ 57.369976] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 57.373096] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 57.374790] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 57.379528] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 57.383457] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 57.389549] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 57.781226] ------------[ cut here ]------------ [ 57.781884] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 57.783575] WARNING: CPU: 1 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 57.784693] Modules linked in: [ 57.785150] CPU: 1 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 57.790234] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 57.791633] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 57.792630] 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 [ 57.795304] RSP: 0018:ffff8880181c7c00 EFLAGS: 00010282 [ 57.796131] RAX: 0000000000000000 RBX: ffff88800cb24440 RCX: 0000000000000000 [ 57.797226] RDX: ffff8880101ab680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 57.798313] RBP: ffff88800cb24454 R08: 0000000000000001 R09: 0000000000000000 [ 57.799390] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 57.800494] R13: ffffffff84e223a0 R14: ffff88800cb24448 R15: ffffffff84d73340 [ 57.801442] FS: 000055555617f400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 57.802438] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.803177] CR2: 00007fc0e4d316f4 CR3: 000000000ebb8000 CR4: 0000000000350ee0 [ 57.804091] Call Trace: [ 57.804434] [ 57.804733] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 57.805373] ipv4_frags_init_net+0x269/0x440 [ 57.805968] ops_init+0xbb/0x6b0 [ 57.806411] setup_net+0x3d9/0x990 [ 57.806860] ? down_read_killable+0x1d7/0x4e0 [ 57.807452] ? __pfx_setup_net+0x10/0x10 [ 57.807985] ? copy_net_ns+0x17c/0x770 [ 57.808496] copy_net_ns+0x321/0x770 [ 57.809007] create_new_namespaces+0x3f6/0xb30 [ 57.809601] unshare_nsproxy_namespaces+0xc1/0x200 [ 57.810245] ksys_unshare+0x44d/0x8e0 [ 57.810740] ? __pfx_ksys_unshare+0x10/0x10 [ 57.811320] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 57.812063] __x64_sys_unshare+0x31/0x40 [ 57.812598] do_syscall_64+0x3f/0x90 [ 57.813108] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 57.813748] RIP: 0033:0x7f2e22a9e0d7 [ 57.814240] 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 [ 57.816457] RSP: 002b:00007ffc9eb5b3a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 57.817414] RAX: ffffffffffffffda RBX: 00007ffc9eb5b9e8 RCX: 00007f2e22a9e0d7 [ 57.818316] RDX: 00007f2e22b0841f RSI: 00007ffc9eb5b340 RDI: 0000000040000000 [ 57.819202] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffc9eb5b150 [ 57.820095] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f2e22bb0bf0 [ 57.821017] R13: 00007ffc9eb5b480 R14: 0000000000000000 R15: 00000000000000f8 [ 57.821904] [ 57.822244] irq event stamp: 8707 [ 57.822672] hardirqs last enabled at (8717): [] __up_console_sem+0x78/0x80 [ 57.823746] hardirqs last disabled at (8728): [] __up_console_sem+0x5d/0x80 [ 57.824813] softirqs last enabled at (8276): [] irq_exit_rcu+0x93/0xc0 [ 57.825835] softirqs last disabled at (8261): [] irq_exit_rcu+0x93/0xc0 [ 57.826868] ---[ end trace 0000000000000000 ]--- [ 57.832187] ------------[ cut here ]------------ [ 57.832819] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 57.834452] WARNING: CPU: 1 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 57.835510] Modules linked in: [ 57.835956] CPU: 1 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 57.837139] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 57.838159] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 57.838805] 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 [ 57.840985] RSP: 0018:ffff8880181c7c00 EFLAGS: 00010282 [ 57.841641] RAX: 0000000000000000 RBX: ffff88800d934a40 RCX: 0000000000000000 [ 57.842534] RDX: ffff8880101ab680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 57.843416] RBP: ffff88800d934a54 R08: 0000000000000001 R09: 0000000000000000 [ 57.844312] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 57.845208] R13: ffffffff84e223a0 R14: ffff88800d934a48 R15: ffffffff84da62e0 [ 57.846107] FS: 000055555617f400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 57.847097] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.847798] CR2: 00007fc0e4d316f4 CR3: 000000000ebb8000 CR4: 0000000000350ee0 [ 57.848725] Call Trace: [ 57.849079] [ 57.849379] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 57.850031] ipv6_frags_init_net+0x206/0x3c0 [ 57.850590] ops_init+0xbb/0x6b0 [ 57.851075] setup_net+0x3d9/0x990 [ 57.851535] ? down_read_killable+0x1d7/0x4e0 [ 57.852137] ? __pfx_setup_net+0x10/0x10 [ 57.852651] ? copy_net_ns+0x17c/0x770 [ 57.853187] copy_net_ns+0x321/0x770 [ 57.853676] create_new_namespaces+0x3f6/0xb30 [ 57.854291] unshare_nsproxy_namespaces+0xc1/0x200 [ 57.854908] ksys_unshare+0x44d/0x8e0 [ 57.855434] ? __pfx_ksys_unshare+0x10/0x10 [ 57.856017] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 57.856749] __x64_sys_unshare+0x31/0x40 [ 57.857309] do_syscall_64+0x3f/0x90 [ 57.857785] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 57.858459] RIP: 0033:0x7f2e22a9e0d7 [ 57.858959] 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 [ 57.861139] RSP: 002b:00007ffc9eb5b3a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 57.862098] RAX: ffffffffffffffda RBX: 00007ffc9eb5b9e8 RCX: 00007f2e22a9e0d7 [ 57.862988] RDX: 00007f2e22b0841f RSI: 00007ffc9eb5b340 RDI: 0000000040000000 [ 57.863853] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffc9eb5b150 [ 57.864748] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f2e22bb0bf0 [ 57.865642] R13: 00007ffc9eb5b480 R14: 0000000000000000 R15: 00000000000000f8 [ 57.866553] [ 57.866858] irq event stamp: 10561 [ 57.867322] hardirqs last enabled at (10573): [] __up_console_sem+0x78/0x80 [ 57.868425] hardirqs last disabled at (10584): [] __up_console_sem+0x5d/0x80 [ 57.869492] softirqs last enabled at (9992): [] irq_exit_rcu+0x93/0xc0 [ 57.870519] softirqs last disabled at (9935): [] irq_exit_rcu+0x93/0xc0 [ 57.871548] ---[ end trace 0000000000000000 ]--- [ 57.872875] ------------[ cut here ]------------ [ 57.873495] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 57.875361] WARNING: CPU: 1 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 57.876501] Modules linked in: [ 57.877036] CPU: 1 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 57.878193] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 57.879210] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 57.879848] 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 [ 57.882035] RSP: 0018:ffff8880181c7bf0 EFLAGS: 00010286 [ 57.882697] RAX: 0000000000000000 RBX: ffff88800d935640 RCX: 0000000000000000 [ 57.883587] RDX: ffff8880101ab680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 57.884479] RBP: ffff88800d935654 R08: 0000000000000001 R09: 0000000000000000 [ 57.885369] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 57.886254] R13: ffffffff84e223a0 R14: ffff88800d935648 R15: ffffffff84daf020 [ 57.887150] FS: 000055555617f400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 57.888144] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.888887] CR2: 00007fc0e4d316f4 CR3: 000000000ebb8000 CR4: 0000000000350ee0 [ 57.889769] Call Trace: [ 57.890129] [ 57.890435] nf_ct_net_init+0x224/0x3d0 [ 57.890988] ? __pfx_nf_ct_net_init+0x10/0x10 [ 57.891563] ops_init+0xbb/0x6b0 [ 57.892042] setup_net+0x3d9/0x990 [ 57.892511] ? down_read_killable+0x1d7/0x4e0 [ 57.893105] ? __pfx_setup_net+0x10/0x10 [ 57.893628] ? copy_net_ns+0x17c/0x770 [ 57.894168] copy_net_ns+0x321/0x770 [ 57.894652] create_new_namespaces+0x3f6/0xb30 [ 57.895261] unshare_nsproxy_namespaces+0xc1/0x200 [ 57.895882] ksys_unshare+0x44d/0x8e0 [ 57.896420] ? __pfx_ksys_unshare+0x10/0x10 [ 57.897014] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 57.897734] __x64_sys_unshare+0x31/0x40 [ 57.898295] do_syscall_64+0x3f/0x90 [ 57.898773] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 57.899455] RIP: 0033:0x7f2e22a9e0d7 [ 57.899947] 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 [ 57.902159] RSP: 002b:00007ffc9eb5b3a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 57.903118] RAX: ffffffffffffffda RBX: 00007ffc9eb5b9e8 RCX: 00007f2e22a9e0d7 [ 57.904018] RDX: 00007f2e22b0841f RSI: 00007ffc9eb5b340 RDI: 0000000040000000 [ 57.904887] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffc9eb5b150 [ 57.905786] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f2e22bb0bf0 [ 57.906670] R13: 00007ffc9eb5b480 R14: 0000000000000000 R15: 00000000000000f8 [ 57.907587] [ 57.907898] irq event stamp: 11379 [ 57.908368] hardirqs last enabled at (11391): [] __up_console_sem+0x78/0x80 [ 57.909439] hardirqs last disabled at (11402): [] __up_console_sem+0x5d/0x80 [ 57.910520] softirqs last enabled at (11098): [] irq_exit_rcu+0x93/0xc0 [ 57.911554] softirqs last disabled at (11093): [] irq_exit_rcu+0x93/0xc0 [ 57.912602] ---[ end trace 0000000000000000 ]--- executing program [ 59.456478] Bluetooth: hci0: command 0x0409 tx timeout [ 61.504017] Bluetooth: hci0: command 0x041b tx timeout executing program [ 63.551987] Bluetooth: hci0: command 0x040f tx timeout executing program [ 65.600190] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 15:46:13 Registers: info registers vcpu 0 RAX=000000000001a177 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=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 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=00007fe96ceb2a80 CR3=0000000009b14000 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=000000000000000000000000000000ff XMM02=000000000000000000000000000000ff XMM03=6465746e69615420302e726f74756365 XMM04=636f72703d7373616c63742030733a74 XMM05=3a755f6d65747379733d747865746e6f XMM06=5f6d65747379733a755f6d6574737973 XMM07=00000000000000000000000000000000 XMM08=203a4944522032666132373131386600 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000000000020 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507685 RDI=ffffffff87f27c00 RBP=ffffffff87f27bc0 RSP=ffff8880181c75f0 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000020 R11=0000000000000001 R12=0000000000000020 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 000055555617f400 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=00007fc0e4d316f4 CR3=000000000ebb8000 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