syzkaller login: [ 52.855689] sshd (226) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:45475' (ECDSA) to the list of known hosts. 2023/05/17 09:01:36 fuzzer started 2023/05/17 09:01:36 dialing manager at localhost:35573 2023/05/17 09:01:36 checking machine... 2023/05/17 09:01:36 checking revisions... [ 54.541670] kmemleak: Automatic memory scanning thread ended 2023/05/17 09:01:36 testing simple program... [ 54.597938] cgroup: Unknown subsys name 'net' [ 54.668209] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 66.948422] audit: type=1400 audit(1684314109.109:6): avc: denied { execmem } for pid=268 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 68.049132] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 68.051628] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 68.052651] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 68.055479] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 68.057438] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 68.058902] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 68.362984] ------------[ cut here ]------------ [ 68.363463] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 68.364666] WARNING: CPU: 0 PID: 269 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 68.365408] Modules linked in: [ 68.365704] CPU: 0 PID: 269 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 68.368630] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 68.369476] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 68.369940] 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 [ 68.371540] RSP: 0018:ffff88801f2cfc00 EFLAGS: 00010282 [ 68.372049] RAX: 0000000000000000 RBX: ffff88800fa9ec40 RCX: 0000000000000000 [ 68.372693] RDX: ffff88800f8d3680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 68.373332] RBP: ffff88800fa9ec54 R08: 0000000000000001 R09: 0000000000000000 [ 68.373953] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 68.374614] R13: ffffffff84e223a0 R14: ffff88800fa9ec48 R15: ffffffff84d73340 [ 68.375282] FS: 0000555555ad8400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 68.376016] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 68.376563] CR2: 00007fed00edc6f4 CR3: 000000000edaa000 CR4: 0000000000350ef0 [ 68.377238] Call Trace: [ 68.377482] [ 68.377718] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 68.378156] ipv4_frags_init_net+0x269/0x440 [ 68.378630] ops_init+0xbb/0x6b0 [ 68.378966] setup_net+0x3d9/0x990 [ 68.379314] ? down_read_killable+0x1d7/0x4e0 [ 68.379752] ? __pfx_setup_net+0x10/0x10 [ 68.380155] ? copy_net_ns+0x17c/0x770 [ 68.380536] copy_net_ns+0x321/0x770 [ 68.380885] create_new_namespaces+0x3f6/0xb30 [ 68.381350] unshare_nsproxy_namespaces+0xc1/0x200 [ 68.381804] ksys_unshare+0x44d/0x8e0 [ 68.382186] ? __pfx_ksys_unshare+0x10/0x10 [ 68.382580] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 68.383108] __x64_sys_unshare+0x31/0x40 [ 68.383575] do_syscall_64+0x3f/0x90 [ 68.383933] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 68.384447] RIP: 0033:0x7f38005400d7 [ 68.384820] 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 [ 68.386424] RSP: 002b:00007ffeefd9c408 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 68.387127] RAX: ffffffffffffffda RBX: 00007ffeefd9ca48 RCX: 00007f38005400d7 [ 68.387828] RDX: 00007f38005aa41f RSI: 00007ffeefd9c3a0 RDI: 0000000040000000 [ 68.388483] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffeefd9c1b0 [ 68.389129] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f3800652bf0 [ 68.389826] R13: 00007ffeefd9c4e0 R14: 0000000000000000 R15: 00000000000000f8 [ 68.390476] [ 68.390735] irq event stamp: 8087 [ 68.391046] hardirqs last enabled at (8097): [] __up_console_sem+0x78/0x80 [ 68.391817] hardirqs last disabled at (8108): [] __up_console_sem+0x5d/0x80 [ 68.392612] softirqs last enabled at (7640): [] irq_exit_rcu+0x93/0xc0 [ 68.393345] softirqs last disabled at (7629): [] irq_exit_rcu+0x93/0xc0 [ 68.394081] ---[ end trace 0000000000000000 ]--- [ 68.399619] ------------[ cut here ]------------ [ 68.400124] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 68.401353] WARNING: CPU: 0 PID: 269 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 68.402106] Modules linked in: [ 68.402433] CPU: 0 PID: 269 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 68.403236] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 68.403921] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 68.404428] 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 [ 68.405969] RSP: 0018:ffff88801f2cfc00 EFLAGS: 00010282 [ 68.406467] RAX: 0000000000000000 RBX: ffff88801465d040 RCX: 0000000000000000 [ 68.407084] RDX: ffff88800f8d3680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 68.407692] RBP: ffff88801465d054 R08: 0000000000000001 R09: 0000000000000000 [ 68.408396] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 68.409063] R13: ffffffff84e223a0 R14: ffff88801465d048 R15: ffffffff84da62e0 [ 68.409706] FS: 0000555555ad8400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 68.410349] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 68.410818] CR2: 00007fed00edc6f4 CR3: 000000000edaa000 CR4: 0000000000350ef0 [ 68.411422] Call Trace: [ 68.411651] [ 68.411858] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 68.412377] ipv6_frags_init_net+0x206/0x3c0 [ 68.412752] ops_init+0xbb/0x6b0 [ 68.413050] setup_net+0x3d9/0x990 [ 68.413381] ? down_read_killable+0x1d7/0x4e0 [ 68.413799] ? __pfx_setup_net+0x10/0x10 [ 68.414153] ? copy_net_ns+0x17c/0x770 [ 68.414506] copy_net_ns+0x321/0x770 [ 68.414829] create_new_namespaces+0x3f6/0xb30 [ 68.415261] unshare_nsproxy_namespaces+0xc1/0x200 [ 68.415674] ksys_unshare+0x44d/0x8e0 [ 68.416041] ? __pfx_ksys_unshare+0x10/0x10 [ 68.416443] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 68.416956] __x64_sys_unshare+0x31/0x40 [ 68.417313] do_syscall_64+0x3f/0x90 [ 68.417637] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 68.418060] RIP: 0033:0x7f38005400d7 [ 68.418426] 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 [ 68.419914] RSP: 002b:00007ffeefd9c408 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 68.420574] RAX: ffffffffffffffda RBX: 00007ffeefd9ca48 RCX: 00007f38005400d7 [ 68.421189] RDX: 00007f38005aa41f RSI: 00007ffeefd9c3a0 RDI: 0000000040000000 [ 68.421758] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffeefd9c1b0 [ 68.422320] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f3800652bf0 [ 68.422909] R13: 00007ffeefd9c4e0 R14: 0000000000000000 R15: 00000000000000f8 [ 68.423509] [ 68.423714] irq event stamp: 11147 [ 68.424029] hardirqs last enabled at (11157): [] __up_console_sem+0x78/0x80 [ 68.424804] hardirqs last disabled at (11168): [] __up_console_sem+0x5d/0x80 [ 68.425506] softirqs last enabled at (11046): [] irq_exit_rcu+0x93/0xc0 [ 68.426206] softirqs last disabled at (11041): [] irq_exit_rcu+0x93/0xc0 [ 68.426940] ---[ end trace 0000000000000000 ]--- [ 68.428098] ------------[ cut here ]------------ [ 68.428512] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 68.429809] WARNING: CPU: 0 PID: 269 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 68.430576] Modules linked in: [ 68.430889] CPU: 0 PID: 269 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 68.431724] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 68.432512] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 68.432929] 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 [ 68.434573] RSP: 0018:ffff88801f2cfbf0 EFLAGS: 00010286 [ 68.435026] RAX: 0000000000000000 RBX: ffff88800e1e4440 RCX: 0000000000000000 [ 68.435624] RDX: ffff88800f8d3680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 68.436318] RBP: ffff88800e1e4454 R08: 0000000000000001 R09: 0000000000000000 [ 68.436981] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 68.437641] R13: ffffffff84e223a0 R14: ffff88800e1e4448 R15: ffffffff84daf020 [ 68.438274] FS: 0000555555ad8400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 68.438947] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 68.439455] CR2: 00007fed00edc6f4 CR3: 000000000edaa000 CR4: 0000000000350ef0 [ 68.440096] Call Trace: [ 68.440356] [ 68.440563] nf_ct_net_init+0x224/0x3d0 [ 68.440964] ? __pfx_nf_ct_net_init+0x10/0x10 [ 68.441354] ops_init+0xbb/0x6b0 [ 68.441650] setup_net+0x3d9/0x990 [ 68.441938] ? down_read_killable+0x1d7/0x4e0 [ 68.442342] ? __pfx_setup_net+0x10/0x10 [ 68.442707] ? copy_net_ns+0x17c/0x770 [ 68.443094] copy_net_ns+0x321/0x770 [ 68.443490] create_new_namespaces+0x3f6/0xb30 [ 68.443943] unshare_nsproxy_namespaces+0xc1/0x200 [ 68.444404] ksys_unshare+0x44d/0x8e0 [ 68.444715] ? __pfx_ksys_unshare+0x10/0x10 [ 68.445091] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 68.445605] __x64_sys_unshare+0x31/0x40 [ 68.445956] do_syscall_64+0x3f/0x90 [ 68.446308] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 68.446752] RIP: 0033:0x7f38005400d7 [ 68.447064] 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 [ 68.448586] RSP: 002b:00007ffeefd9c408 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 68.449247] RAX: ffffffffffffffda RBX: 00007ffeefd9ca48 RCX: 00007f38005400d7 [ 68.449835] RDX: 00007f38005aa41f RSI: 00007ffeefd9c3a0 RDI: 0000000040000000 [ 68.450410] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffeefd9c1b0 [ 68.450988] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f3800652bf0 [ 68.451597] R13: 00007ffeefd9c4e0 R14: 0000000000000000 R15: 00000000000000f8 [ 68.452244] [ 68.452455] irq event stamp: 11855 [ 68.452794] hardirqs last enabled at (11865): [] __up_console_sem+0x78/0x80 [ 68.453541] hardirqs last disabled at (11876): [] __up_console_sem+0x5d/0x80 [ 68.454301] softirqs last enabled at (11046): [] irq_exit_rcu+0x93/0xc0 [ 68.455027] softirqs last disabled at (11041): [] irq_exit_rcu+0x93/0xc0 [ 68.455814] ---[ end trace 0000000000000000 ]--- executing program [ 70.126812] Bluetooth: hci0: command 0x0409 tx timeout [ 72.174252] Bluetooth: hci0: command 0x041b tx timeout executing program [ 74.222239] Bluetooth: hci0: command 0x040f tx timeout executing program [ 76.271207] Bluetooth: hci0: command 0x0419 tx timeout VM DIAGNOSIS: 09:01:38 Registers: info registers vcpu 0 RAX=0000000000000032 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507685 RDI=ffffffff87f27c00 RBP=ffffffff87f27bc0 RSP=ffff88801f2cf5f0 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000032 R11=0000000000000001 R12=0000000000000032 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 0000555555ad8400 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=00007fed00edc6f4 CR3=000000000edaa000 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=0000000000051415 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=00007fdc0d4f81f0 CR3=000000000ef56000 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=2030353a31303a39302037312079614d XMM01=5d3430373536332e38362020205b203a XMM02=75636578652d7a7973203a6d6d6f4320 XMM03=20202020202020572020202020202020 XMM04=6e2d3263722d302e342e362020202020 XMM05=3a6465746e69615420302e726f747563 XMM06=32203a4449502030203a555043205d34 XMM07=6e72656b2072656c6c616b7a79732030 XMM08=7475636578652d7a7973223d6d6d6f63 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000