syzkaller login: [ 34.815104] sshd (216) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:46133' (ECDSA) to the list of known hosts. 2023/05/16 17:53:54 fuzzer started 2023/05/16 17:53:54 dialing manager at localhost:35573 2023/05/16 17:53:54 checking machine... 2023/05/16 17:53:54 checking revisions... [ 36.924688] kmemleak: Automatic memory scanning thread ended 2023/05/16 17:53:54 testing simple program... [ 36.987588] cgroup: Unknown subsys name 'net' [ 37.080995] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 49.654227] audit: type=1400 audit(1684259647.515:6): avc: denied { execmem } for pid=256 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 50.791570] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 50.794083] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 50.795213] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 50.798228] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 50.799592] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 50.801826] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 51.208654] ------------[ cut here ]------------ [ 51.209520] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 51.211724] WARNING: CPU: 1 PID: 257 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 51.212909] Modules linked in: [ 51.213358] CPU: 1 PID: 257 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 51.218826] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 51.219973] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 51.220691] 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 [ 51.223105] RSP: 0018:ffff88800dbe7c00 EFLAGS: 00010282 [ 51.223819] RAX: 0000000000000000 RBX: ffff88800e182040 RCX: 0000000000000000 [ 51.224803] RDX: ffff88801cd7b680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 51.225783] RBP: ffff88800e182054 R08: 0000000000000001 R09: 0000000000000000 [ 51.226783] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 51.227763] R13: ffffffff84e223a0 R14: ffff88800e182048 R15: ffffffff84d73340 [ 51.228743] FS: 0000555557054400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 51.229841] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.230658] CR2: 00007fa80022f6f4 CR3: 0000000015846000 CR4: 0000000000350ee0 [ 51.231664] Call Trace: [ 51.232055] [ 51.232388] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 51.233088] ipv4_frags_init_net+0x269/0x440 [ 51.233703] ops_init+0xbb/0x6b0 [ 51.234216] setup_net+0x3d9/0x990 [ 51.234723] ? down_read_killable+0x1d7/0x4e0 [ 51.235381] ? __pfx_setup_net+0x10/0x10 [ 51.235970] ? copy_net_ns+0x17c/0x770 [ 51.236528] copy_net_ns+0x321/0x770 [ 51.237086] create_new_namespaces+0x3f6/0xb30 [ 51.237737] unshare_nsproxy_namespaces+0xc1/0x200 [ 51.238438] ksys_unshare+0x44d/0x8e0 [ 51.239046] ? __pfx_ksys_unshare+0x10/0x10 [ 51.239658] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 51.240477] __x64_sys_unshare+0x31/0x40 [ 51.241084] do_syscall_64+0x3f/0x90 [ 51.241606] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 51.242332] RIP: 0033:0x7fe81d6380d7 [ 51.242848] 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 [ 51.245220] RSP: 002b:00007fffaa84d8d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 51.246259] RAX: ffffffffffffffda RBX: 00007fffaa84df18 RCX: 00007fe81d6380d7 [ 51.247214] RDX: 00007fe81d6a241f RSI: 00007fffaa84d870 RDI: 0000000040000000 [ 51.248171] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fffaa84d680 [ 51.249130] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fe81d74abf0 [ 51.250069] R13: 00007fffaa84d9b0 R14: 0000000000000000 R15: 00000000000000f8 [ 51.251083] [ 51.251414] irq event stamp: 9191 [ 51.251922] hardirqs last enabled at (9203): [] __up_console_sem+0x78/0x80 [ 51.253080] hardirqs last disabled at (9214): [] __up_console_sem+0x5d/0x80 [ 51.254234] softirqs last enabled at (9018): [] irq_exit_rcu+0x93/0xc0 [ 51.255360] softirqs last disabled at (9013): [] irq_exit_rcu+0x93/0xc0 [ 51.256476] ---[ end trace 0000000000000000 ]--- [ 51.261770] ------------[ cut here ]------------ [ 51.262533] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 51.264302] WARNING: CPU: 1 PID: 257 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 51.265431] Modules linked in: [ 51.265865] CPU: 1 PID: 257 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 51.267119] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 51.268204] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 51.268918] 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 [ 51.271299] RSP: 0018:ffff88800dbe7c00 EFLAGS: 00010282 [ 51.272016] RAX: 0000000000000000 RBX: ffff88800eb16240 RCX: 0000000000000000 [ 51.272956] RDX: ffff88801cd7b680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 51.273855] RBP: ffff88800eb16254 R08: 0000000000000001 R09: 0000000000000000 [ 51.274798] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 51.275727] R13: ffffffff84e223a0 R14: ffff88800eb16248 R15: ffffffff84da62e0 [ 51.276658] FS: 0000555557054400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 51.277713] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.278487] CR2: 00007fa80022f6f4 CR3: 0000000015846000 CR4: 0000000000350ee0 [ 51.279474] Call Trace: [ 51.279930] [ 51.280243] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 51.280906] ipv6_frags_init_net+0x206/0x3c0 [ 51.281481] ops_init+0xbb/0x6b0 [ 51.281976] setup_net+0x3d9/0x990 [ 51.282452] ? down_read_killable+0x1d7/0x4e0 [ 51.283088] ? __pfx_setup_net+0x10/0x10 [ 51.283617] ? copy_net_ns+0x17c/0x770 [ 51.284174] copy_net_ns+0x321/0x770 [ 51.284676] create_new_namespaces+0x3f6/0xb30 [ 51.285311] unshare_nsproxy_namespaces+0xc1/0x200 [ 51.285981] ksys_unshare+0x44d/0x8e0 [ 51.286497] ? __pfx_ksys_unshare+0x10/0x10 [ 51.287103] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 51.287843] __x64_sys_unshare+0x31/0x40 [ 51.288413] do_syscall_64+0x3f/0x90 [ 51.288936] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 51.289605] RIP: 0033:0x7fe81d6380d7 [ 51.290118] 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 [ 51.292388] RSP: 002b:00007fffaa84d8d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 51.293368] RAX: ffffffffffffffda RBX: 00007fffaa84df18 RCX: 00007fe81d6380d7 [ 51.294281] RDX: 00007fe81d6a241f RSI: 00007fffaa84d870 RDI: 0000000040000000 [ 51.295209] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fffaa84d680 [ 51.296140] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fe81d74abf0 [ 51.297056] R13: 00007fffaa84d9b0 R14: 0000000000000000 R15: 00000000000000f8 [ 51.297994] [ 51.298304] irq event stamp: 10945 [ 51.298769] hardirqs last enabled at (10955): [] __up_console_sem+0x78/0x80 [ 51.299892] hardirqs last disabled at (10968): [] __up_console_sem+0x5d/0x80 [ 51.300993] softirqs last enabled at (10424): [] irq_exit_rcu+0x93/0xc0 [ 51.302079] softirqs last disabled at (10989): [] irq_exit_rcu+0x93/0xc0 [ 51.303173] ---[ end trace 0000000000000000 ]--- [ 51.304590] ------------[ cut here ]------------ [ 51.305222] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 51.307276] WARNING: CPU: 1 PID: 257 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 51.308372] Modules linked in: [ 51.308793] CPU: 1 PID: 257 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 51.309998] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 51.311085] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 51.311760] 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 [ 51.314020] RSP: 0018:ffff88800dbe7bf0 EFLAGS: 00010286 [ 51.314699] RAX: 0000000000000000 RBX: ffff88800eb17a40 RCX: 0000000000000000 [ 51.315643] RDX: ffff88801cd7b680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 51.316562] RBP: ffff88800eb17a54 R08: 0000000000000001 R09: 0000000000000000 [ 51.317470] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 51.318382] R13: ffffffff84e223a0 R14: ffff88800eb17a48 R15: ffffffff84daf020 [ 51.319305] FS: 0000555557054400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 51.320326] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.321095] CR2: 00007fa80022f6f4 CR3: 0000000015846000 CR4: 0000000000350ee0 [ 51.322019] Call Trace: [ 51.322347] [ 51.322659] nf_ct_net_init+0x224/0x3d0 [ 51.323225] ? __pfx_nf_ct_net_init+0x10/0x10 [ 51.323812] ops_init+0xbb/0x6b0 [ 51.324297] setup_net+0x3d9/0x990 [ 51.324768] ? down_read_killable+0x1d7/0x4e0 [ 51.325381] ? __pfx_setup_net+0x10/0x10 [ 51.325937] ? copy_net_ns+0x17c/0x770 [ 51.326457] copy_net_ns+0x321/0x770 [ 51.327004] create_new_namespaces+0x3f6/0xb30 [ 51.327603] unshare_nsproxy_namespaces+0xc1/0x200 [ 51.328278] ksys_unshare+0x44d/0x8e0 [ 51.328784] ? __pfx_ksys_unshare+0x10/0x10 [ 51.329378] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 51.330143] __x64_sys_unshare+0x31/0x40 [ 51.330673] do_syscall_64+0x3f/0x90 [ 51.331202] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 51.331848] RIP: 0033:0x7fe81d6380d7 [ 51.332348] 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 [ 51.334537] RSP: 002b:00007fffaa84d8d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 51.335516] RAX: ffffffffffffffda RBX: 00007fffaa84df18 RCX: 00007fe81d6380d7 [ 51.336420] RDX: 00007fe81d6a241f RSI: 00007fffaa84d870 RDI: 0000000040000000 [ 51.337312] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fffaa84d680 [ 51.338209] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fe81d74abf0 [ 51.339105] R13: 00007fffaa84d9b0 R14: 0000000000000000 R15: 00000000000000f8 [ 51.340017] [ 51.340321] irq event stamp: 11817 [ 51.340754] hardirqs last enabled at (11827): [] __up_console_sem+0x78/0x80 [ 51.341834] hardirqs last disabled at (11838): [] __up_console_sem+0x5d/0x80 [ 51.342931] softirqs last enabled at (11368): [] irq_exit_rcu+0x93/0xc0 [ 51.343972] softirqs last disabled at (11359): [] irq_exit_rcu+0x93/0xc0 [ 51.345013] ---[ end trace 0000000000000000 ]--- executing program [ 52.815583] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 54.863512] Bluetooth: hci0: command 0x041b tx timeout [ 56.910959] Bluetooth: hci0: command 0x040f tx timeout executing program [ 58.958974] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 17:54:08 Registers: info registers vcpu 0 RAX=000000000002f175 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=00007fc1707fd368 CR3=000000000eaec000 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=b2234ab724069fa76143fb6f512f6848 XMM02=6b1e99b806172e3b00000000000aea28 XMM03=ac8bc31478ec851100000000000aefa0 XMM04=3674cd4f4a318de9000000000013c2f0 XMM05=d3fdd5f48436fbd700000000000aead0 XMM06=4504bd62848da0d900000000000ae988 XMM07=a1fcdcf819d7e1e500000000000ae728 XMM08=44495f474f4c5359530069253d595449 XMM09=00000000000000000000000000000000 XMM10=00200000000000000020000000000000 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=ffff88800dbe75f0 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 0000555557054400 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=00007fa80022f6f4 CR3=0000000015846000 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