syzkaller login: [ 64.182605] sshd (227) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:31150' (ECDSA) to the list of known hosts. 2023/05/16 12:14:44 fuzzer started 2023/05/16 12:14:44 dialing manager at localhost:35573 2023/05/16 12:14:44 checking machine... 2023/05/16 12:14:44 checking revisions... [ 65.444382] kmemleak: Automatic memory scanning thread ended 2023/05/16 12:14:44 testing simple program... [ 65.513866] cgroup: Unknown subsys name 'net' [ 65.586804] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 79.397289] audit: type=1400 audit(1684239298.941:6): avc: denied { execmem } for pid=261 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 [ 80.565896] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 80.572368] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 80.573642] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 80.576166] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 80.577820] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 80.578926] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 80.983248] ------------[ cut here ]------------ [ 80.983936] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 80.985879] WARNING: CPU: 1 PID: 262 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 80.987094] Modules linked in: [ 80.987662] CPU: 1 PID: 262 Comm: syz-executor.0 Tainted: G W L 6.4.0-rc2-next-20230516 #1 [ 80.991805] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 80.992998] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 80.993822] 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 [ 80.996255] RSP: 0018:ffff8880202c7c00 EFLAGS: 00010282 [ 80.996973] RAX: 0000000000000000 RBX: ffff88800dd71840 RCX: 0000000000000000 [ 80.997973] RDX: ffff88800dea1b40 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 80.998917] RBP: ffff88800dd71854 R08: 0000000000000001 R09: 0000000000000000 [ 80.999904] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 81.000858] R13: ffffffff84e223a0 R14: ffff88800dd71848 R15: ffffffff84d73340 [ 81.001817] FS: 0000555556c1b400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 81.002878] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 81.003647] CR2: 00007f25312876f4 CR3: 000000001a09a000 CR4: 0000000000350ee0 [ 81.004579] Call Trace: [ 81.004917] [ 81.005257] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 81.005889] ipv4_frags_init_net+0x269/0x440 [ 81.006505] ops_init+0xbb/0x6b0 [ 81.006966] setup_net+0x3d9/0x990 [ 81.007479] ? down_read_killable+0x1d7/0x4e0 [ 81.008087] ? __pfx_setup_net+0x10/0x10 [ 81.008650] ? copy_net_ns+0x17c/0x770 [ 81.009216] copy_net_ns+0x321/0x770 [ 81.009716] create_new_namespaces+0x3f6/0xb30 [ 81.010361] unshare_nsproxy_namespaces+0xc1/0x200 [ 81.010998] ksys_unshare+0x44d/0x8e0 [ 81.011546] ? __pfx_ksys_unshare+0x10/0x10 [ 81.012129] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 81.012914] __x64_sys_unshare+0x31/0x40 [ 81.013486] do_syscall_64+0x3f/0x90 [ 81.013977] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 81.014684] RIP: 0033:0x7f812f4e90d7 [ 81.015171] 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 [ 81.017448] RSP: 002b:00007ffeced64798 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 81.018448] RAX: ffffffffffffffda RBX: 00007ffeced64dd8 RCX: 00007f812f4e90d7 [ 81.019396] RDX: 00007f812f55341f RSI: 00007ffeced64730 RDI: 0000000040000000 [ 81.020352] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffeced64540 [ 81.021304] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f812f5fbbf0 [ 81.022267] R13: 00007ffeced64870 R14: 0000000000000000 R15: 00000000000000f8 [ 81.023240] [ 81.023561] irq event stamp: 9549 [ 81.024027] hardirqs last enabled at (9559): [] __up_console_sem+0x78/0x80 [ 81.025170] hardirqs last disabled at (9570): [] __up_console_sem+0x5d/0x80 [ 81.026319] softirqs last enabled at (9148): [] irq_exit_rcu+0x93/0xc0 [ 81.027427] softirqs last disabled at (9131): [] irq_exit_rcu+0x93/0xc0 [ 81.028537] ---[ end trace 0000000000000000 ]--- [ 81.035317] ------------[ cut here ]------------ [ 81.035948] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 81.037781] WARNING: CPU: 1 PID: 262 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 81.038878] Modules linked in: [ 81.039329] CPU: 1 PID: 262 Comm: syz-executor.0 Tainted: G W L 6.4.0-rc2-next-20230516 #1 [ 81.040523] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 81.041563] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 81.042245] 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 [ 81.044465] RSP: 0018:ffff8880202c7c00 EFLAGS: 00010282 [ 81.045126] RAX: 0000000000000000 RBX: ffff888014504a40 RCX: 0000000000000000 [ 81.046033] RDX: ffff88800dea1b40 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 81.046930] RBP: ffff888014504a54 R08: 0000000000000001 R09: 0000000000000000 [ 81.047837] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 81.048734] R13: ffffffff84e223a0 R14: ffff888014504a48 R15: ffffffff84da62e0 [ 81.049635] FS: 0000555556c1b400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 81.050641] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 81.051393] CR2: 00007f25312876f4 CR3: 000000001a09a000 CR4: 0000000000350ee0 [ 81.052327] Call Trace: [ 81.052653] [ 81.052953] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 81.053596] ipv6_frags_init_net+0x206/0x3c0 [ 81.054161] ops_init+0xbb/0x6b0 [ 81.054638] setup_net+0x3d9/0x990 [ 81.055094] ? down_read_killable+0x1d7/0x4e0 [ 81.055729] ? __pfx_setup_net+0x10/0x10 [ 81.056274] ? copy_net_ns+0x17c/0x770 [ 81.056787] copy_net_ns+0x321/0x770 [ 81.057304] create_new_namespaces+0x3f6/0xb30 [ 81.057891] unshare_nsproxy_namespaces+0xc1/0x200 [ 81.058550] ksys_unshare+0x44d/0x8e0 [ 81.059047] ? __pfx_ksys_unshare+0x10/0x10 [ 81.059624] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 81.060403] __x64_sys_unshare+0x31/0x40 [ 81.060934] do_syscall_64+0x3f/0x90 [ 81.061452] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 81.062112] RIP: 0033:0x7f812f4e90d7 [ 81.062611] 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 [ 81.065097] RSP: 002b:00007ffeced64798 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 81.066218] RAX: ffffffffffffffda RBX: 00007ffeced64dd8 RCX: 00007f812f4e90d7 [ 81.067254] RDX: 00007f812f55341f RSI: 00007ffeced64730 RDI: 0000000040000000 [ 81.068329] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffeced64540 [ 81.069380] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f812f5fbbf0 [ 81.070430] R13: 00007ffeced64870 R14: 0000000000000000 R15: 00000000000000f8 [ 81.071496] [ 81.071867] irq event stamp: 11697 [ 81.072408] hardirqs last enabled at (11709): [] __up_console_sem+0x78/0x80 [ 81.073662] hardirqs last disabled at (11720): [] __up_console_sem+0x5d/0x80 [ 81.074909] softirqs last enabled at (11646): [] irq_exit_rcu+0x93/0xc0 [ 81.076123] softirqs last disabled at (11637): [] irq_exit_rcu+0x93/0xc0 [ 81.077344] ---[ end trace 0000000000000000 ]--- [ 81.078823] ------------[ cut here ]------------ [ 81.079676] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 81.081823] WARNING: CPU: 1 PID: 262 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 81.083064] Modules linked in: [ 81.083566] CPU: 1 PID: 262 Comm: syz-executor.0 Tainted: G W L 6.4.0-rc2-next-20230516 #1 [ 81.084933] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 81.086106] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 81.086874] 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 [ 81.089390] RSP: 0018:ffff8880202c7bf0 EFLAGS: 00010286 [ 81.090139] RAX: 0000000000000000 RBX: ffff888014505040 RCX: 0000000000000000 [ 81.091160] RDX: ffff88800dea1b40 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 81.092227] RBP: ffff888014505054 R08: 0000000000000001 R09: 0000000000000000 [ 81.093252] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 81.094281] R13: ffffffff84e223a0 R14: ffff888014505048 R15: ffffffff84daf020 [ 81.095301] FS: 0000555556c1b400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 81.096456] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 81.097307] CR2: 00007f25312876f4 CR3: 000000001a09a000 CR4: 0000000000350ee0 [ 81.098327] Call Trace: [ 81.098696] [ 81.099043] nf_ct_net_init+0x224/0x3d0 [ 81.099696] ? __pfx_nf_ct_net_init+0x10/0x10 [ 81.100390] ops_init+0xbb/0x6b0 [ 81.100897] setup_net+0x3d9/0x990 [ 81.101452] ? down_read_killable+0x1d7/0x4e0 [ 81.102099] ? __pfx_setup_net+0x10/0x10 [ 81.102719] ? copy_net_ns+0x17c/0x770 [ 81.103310] copy_net_ns+0x321/0x770 [ 81.103841] create_new_namespaces+0x3f6/0xb30 [ 81.104517] unshare_nsproxy_namespaces+0xc1/0x200 [ 81.105225] ksys_unshare+0x44d/0x8e0 [ 81.105786] ? __pfx_ksys_unshare+0x10/0x10 [ 81.106439] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 81.107275] __x64_sys_unshare+0x31/0x40 [ 81.107867] do_syscall_64+0x3f/0x90 [ 81.108459] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 81.109218] RIP: 0033:0x7f812f4e90d7 [ 81.109745] 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 [ 81.112231] RSP: 002b:00007ffeced64798 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 81.113307] RAX: ffffffffffffffda RBX: 00007ffeced64dd8 RCX: 00007f812f4e90d7 [ 81.114316] RDX: 00007f812f55341f RSI: 00007ffeced64730 RDI: 0000000040000000 [ 81.115319] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffeced64540 [ 81.116341] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f812f5fbbf0 [ 81.117348] R13: 00007ffeced64870 R14: 0000000000000000 R15: 00000000000000f8 [ 81.118376] [ 81.118715] irq event stamp: 12529 [ 81.119229] hardirqs last enabled at (12541): [] __up_console_sem+0x78/0x80 [ 81.120445] hardirqs last disabled at (12552): [] __up_console_sem+0x5d/0x80 [ 81.121648] softirqs last enabled at (12164): [] irq_exit_rcu+0x93/0xc0 [ 81.122827] softirqs last disabled at (12159): [] irq_exit_rcu+0x93/0xc0 [ 81.124013] ---[ end trace 0000000000000000 ]--- [ 82.645001] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 84.692261] Bluetooth: hci0: command 0x041b tx timeout executing program [ 86.740267] Bluetooth: hci0: command 0x040f tx timeout [ 88.789279] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 12:14:31 Registers: info registers vcpu 0 RAX=dffffc0000000000 RBX=0000000000000001 RCX=0000000000000000 RDX=0000000000000008 RSI=ffff888016c8f9a8 RDI=ffff888016c8f9d8 RBP=ffff888016c8fa30 RSP=ffff888016c8f910 R8 =ffffffff8608c75a R9 =ffffffff8608c75e R10=0000000000038001 R11=ffff888016c8fa18 R12=ffff888016c8fa38 R13=ffff888016c8fa20 R14=ffff888016c8f9a8 R15=ffff888016c8f9d8 RIP=ffffffff811310ea RFL=00000283 [--S---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 00007f2c37cb4900 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=00007f2c371698e0 CR3=000000001602e000 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=ffffffffffffffffffffffffffffffff XMM01=30306234386136303638616663356134 XMM02=38303062343861363036386166633561 XMM03=2f6c616e72756f6a2f676f6c2f6e7572 XMM04=d8f928da5fab84ed00000000000ca8a8 XMM05=d3fdd5f48436fbd700000000000aead0 XMM06=d105cf4f472a38ed00000000000ae988 XMM07=00000000000000000000000000000000 XMM08=44495f474f4c5359530069253d595449 XMM09=00000000000000000000000000000000 XMM10=00200000000000000020000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=000000000000002d RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507685 RDI=ffffffff87f27c00 RBP=ffffffff87f27bc0 RSP=ffff8880202c75f0 R8 =0000000000000001 R9 =000000000000000a R10=000000000000002d R11=0000000000000001 R12=000000000000002d 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 0000555556c1b400 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=00007f25312876f4 CR3=000000001a09a000 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