syzkaller login: [ 36.272310] sshd (209) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:52899' (ECDSA) to the list of known hosts. 2023/05/17 01:05:40 fuzzer started 2023/05/17 01:05:40 dialing manager at localhost:35573 2023/05/17 01:05:41 checking machine... 2023/05/17 01:05:41 checking revisions... [ 41.128646] kmemleak: Automatic memory scanning thread ended 2023/05/17 01:05:41 testing simple program... [ 41.197257] cgroup: Unknown subsys name 'net' [ 41.279039] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 54.704271] audit: type=1400 audit(1684285554.734:6): 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 [ 55.872315] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 55.875296] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 55.877609] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 55.880597] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 55.887166] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 55.888305] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 executing program [ 56.260935] ------------[ cut here ]------------ [ 56.261682] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 56.263970] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 56.265450] Modules linked in: [ 56.266147] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 56.271516] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 56.272555] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 56.273256] 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 [ 56.275518] RSP: 0018:ffff88801678fc00 EFLAGS: 00010282 [ 56.276234] RAX: 0000000000000000 RBX: ffff88800d10c840 RCX: 0000000000000000 [ 56.277164] RDX: ffff888016d39b40 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 56.278096] RBP: ffff88800d10c854 R08: 0000000000000001 R09: 0000000000000000 [ 56.279001] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 56.279899] R13: ffffffff84e223a0 R14: ffff88800d10c848 R15: ffffffff84d73340 [ 56.280771] FS: 0000555555818400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 56.281817] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.282535] CR2: 00007f3f59b376f4 CR3: 000000000f37a000 CR4: 0000000000350ef0 [ 56.283459] Call Trace: [ 56.283827] [ 56.284141] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 56.284749] ipv4_frags_init_net+0x269/0x440 [ 56.285398] ops_init+0xbb/0x6b0 [ 56.285924] setup_net+0x3d9/0x990 [ 56.286390] ? down_read_killable+0x1d7/0x4e0 [ 56.287017] ? __pfx_setup_net+0x10/0x10 [ 56.287542] ? copy_net_ns+0x17c/0x770 [ 56.288084] copy_net_ns+0x321/0x770 [ 56.288567] create_new_namespaces+0x3f6/0xb30 [ 56.289207] unshare_nsproxy_namespaces+0xc1/0x200 [ 56.289860] ksys_unshare+0x44d/0x8e0 [ 56.290358] ? __pfx_ksys_unshare+0x10/0x10 [ 56.290947] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 56.291682] __x64_sys_unshare+0x31/0x40 [ 56.292239] do_syscall_64+0x3f/0x90 [ 56.292717] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 56.293408] RIP: 0033:0x7f45e4a200d7 [ 56.293904] 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 [ 56.296069] RSP: 002b:00007ffed5d87b28 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 56.297016] RAX: ffffffffffffffda RBX: 00007ffed5d88168 RCX: 00007f45e4a200d7 [ 56.297950] RDX: 00007f45e4a8a41f RSI: 00007ffed5d87ac0 RDI: 0000000040000000 [ 56.298871] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffed5d878d0 [ 56.299757] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f45e4b32bf0 [ 56.300682] R13: 00007ffed5d87c00 R14: 0000000000000000 R15: 00000000000000f8 [ 56.301648] [ 56.301977] irq event stamp: 9387 [ 56.302402] hardirqs last enabled at (9397): [] __up_console_sem+0x78/0x80 [ 56.303484] hardirqs last disabled at (9408): [] __up_console_sem+0x5d/0x80 [ 56.304569] softirqs last enabled at (9124): [] irq_exit_rcu+0x93/0xc0 [ 56.305643] softirqs last disabled at (9117): [] irq_exit_rcu+0x93/0xc0 [ 56.306707] ---[ end trace 0000000000000000 ]--- [ 56.312104] ------------[ cut here ]------------ [ 56.312704] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 56.314569] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 56.315677] Modules linked in: [ 56.316125] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 56.317320] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 56.318342] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 56.319021] 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 [ 56.321236] RSP: 0018:ffff88801678fc00 EFLAGS: 00010282 [ 56.321933] RAX: 0000000000000000 RBX: ffff8880103c1040 RCX: 0000000000000000 [ 56.322833] RDX: ffff888016d39b40 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 56.323720] RBP: ffff8880103c1054 R08: 0000000000000001 R09: 0000000000000000 [ 56.324651] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 56.325556] R13: ffffffff84e223a0 R14: ffff8880103c1048 R15: ffffffff84da62e0 [ 56.326507] FS: 0000555555818400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 56.327526] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.328298] CR2: 00007f3f59b376f4 CR3: 000000000f37a000 CR4: 0000000000350ef0 [ 56.329235] Call Trace: [ 56.329565] [ 56.329893] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 56.330512] ipv6_frags_init_net+0x206/0x3c0 [ 56.331105] ops_init+0xbb/0x6b0 [ 56.331552] setup_net+0x3d9/0x990 [ 56.332041] ? down_read_killable+0x1d7/0x4e0 [ 56.332610] ? __pfx_setup_net+0x10/0x10 [ 56.333152] ? copy_net_ns+0x17c/0x770 [ 56.333659] copy_net_ns+0x321/0x770 [ 56.334169] create_new_namespaces+0x3f6/0xb30 [ 56.334818] unshare_nsproxy_namespaces+0xc1/0x200 [ 56.335481] ksys_unshare+0x44d/0x8e0 [ 56.336007] ? __pfx_ksys_unshare+0x10/0x10 [ 56.336551] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 56.337312] __x64_sys_unshare+0x31/0x40 [ 56.337860] do_syscall_64+0x3f/0x90 [ 56.338339] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 56.339005] RIP: 0033:0x7f45e4a200d7 [ 56.339467] 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 [ 56.341762] RSP: 002b:00007ffed5d87b28 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 56.342715] RAX: ffffffffffffffda RBX: 00007ffed5d88168 RCX: 00007f45e4a200d7 [ 56.343609] RDX: 00007f45e4a8a41f RSI: 00007ffed5d87ac0 RDI: 0000000040000000 [ 56.344495] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffed5d878d0 [ 56.345419] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f45e4b32bf0 [ 56.346296] R13: 00007ffed5d87c00 R14: 0000000000000000 R15: 00000000000000f8 [ 56.347199] [ 56.347503] irq event stamp: 11083 [ 56.347959] hardirqs last enabled at (11095): [] __up_console_sem+0x78/0x80 [ 56.349038] hardirqs last disabled at (11106): [] __up_console_sem+0x5d/0x80 [ 56.350093] softirqs last enabled at (10578): [] irq_exit_rcu+0x93/0xc0 [ 56.351122] softirqs last disabled at (10557): [] irq_exit_rcu+0x93/0xc0 [ 56.352168] ---[ end trace 0000000000000000 ]--- [ 56.353571] ------------[ cut here ]------------ [ 56.354179] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 56.356131] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 56.357228] Modules linked in: [ 56.357645] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 56.358829] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 56.359851] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 56.360507] 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 [ 56.362709] RSP: 0018:ffff88801678fbf0 EFLAGS: 00010286 [ 56.363399] RAX: 0000000000000000 RBX: ffff888010201e40 RCX: 0000000000000000 [ 56.364300] RDX: ffff888016d39b40 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 56.365201] RBP: ffff888010201e54 R08: 0000000000000001 R09: 0000000000000000 [ 56.366095] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 56.367001] R13: ffffffff84e223a0 R14: ffff888010201e48 R15: ffffffff84daf020 [ 56.367896] FS: 0000555555818400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 56.368908] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.369645] CR2: 00007f3f59b376f4 CR3: 000000000f37a000 CR4: 0000000000350ef0 [ 56.370558] Call Trace: [ 56.370930] [ 56.371233] nf_ct_net_init+0x224/0x3d0 [ 56.371762] ? __pfx_nf_ct_net_init+0x10/0x10 [ 56.372365] ops_init+0xbb/0x6b0 [ 56.372837] setup_net+0x3d9/0x990 [ 56.373324] ? down_read_killable+0x1d7/0x4e0 [ 56.373922] ? __pfx_setup_net+0x10/0x10 [ 56.374446] ? copy_net_ns+0x17c/0x770 [ 56.374982] copy_net_ns+0x321/0x770 [ 56.375500] create_new_namespaces+0x3f6/0xb30 [ 56.376161] unshare_nsproxy_namespaces+0xc1/0x200 [ 56.376808] ksys_unshare+0x44d/0x8e0 [ 56.377376] ? __pfx_ksys_unshare+0x10/0x10 [ 56.377979] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 56.378718] __x64_sys_unshare+0x31/0x40 [ 56.379264] do_syscall_64+0x3f/0x90 [ 56.379736] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 56.380406] RIP: 0033:0x7f45e4a200d7 [ 56.380891] 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 [ 56.383078] RSP: 002b:00007ffed5d87b28 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 56.384054] RAX: ffffffffffffffda RBX: 00007ffed5d88168 RCX: 00007f45e4a200d7 [ 56.384964] RDX: 00007f45e4a8a41f RSI: 00007ffed5d87ac0 RDI: 0000000040000000 [ 56.385899] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffed5d878d0 [ 56.386770] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f45e4b32bf0 [ 56.387677] R13: 00007ffed5d87c00 R14: 0000000000000000 R15: 00000000000000f8 [ 56.388598] [ 56.388932] irq event stamp: 11867 [ 56.389390] hardirqs last enabled at (11877): [] __up_console_sem+0x78/0x80 [ 56.390493] hardirqs last disabled at (11888): [] __up_console_sem+0x5d/0x80 [ 56.391608] softirqs last enabled at (11562): [] irq_exit_rcu+0x93/0xc0 [ 56.392714] softirqs last disabled at (11557): [] irq_exit_rcu+0x93/0xc0 [ 56.393764] ---[ end trace 0000000000000000 ]--- [ 57.950479] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 59.997903] Bluetooth: hci0: command 0x041b tx timeout executing program [ 62.045880] Bluetooth: hci0: command 0x040f tx timeout [ 64.093896] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 01:05:56 Registers: info registers vcpu 0 RAX=0000000000000063 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507685 RDI=ffffffff87f27c00 RBP=ffffffff87f27bc0 RSP=ffff88801678f5f0 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000063 R11=0000000000000001 R12=0000000000000063 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 0000555555818400 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=00007f3f59b376f4 CR3=000000000f37a000 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=000000000003fd1f 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=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 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=00007f25cde4a000 CR3=000000000f070000 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=443600a87b229dbf5c400cc92eba24f9 XMM02=6b1e99b806172e3b00000000000aea28 XMM03=ac8bc31478ec851100000000000aefa0 XMM04=a3472f502b3762ce000000000013be78 XMM05=d3fdd5f48436fbd700000000000aead0 XMM06=44550e0c4c8c85a600000000000ae988 XMM07=a1fcdcf819d7e1e500000000000ae728 XMM08=44495f474f4c5359530069253d595449 XMM09=00000000000000000000000000000000 XMM10=00000000000000000020000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000