syzkaller login: [ 44.374608] sshd (216) used greatest stack depth: 24168 bytes left Warning: Permanently added '[localhost]:44444' (ECDSA) to the list of known hosts. 2023/05/17 06:12:41 fuzzer started 2023/05/17 06:12:42 dialing manager at localhost:35573 2023/05/17 06:12:42 checking machine... 2023/05/17 06:12:42 checking revisions... [ 46.541611] kmemleak: Automatic memory scanning thread ended 2023/05/17 06:12:42 testing simple program... [ 46.631702] cgroup: Unknown subsys name 'net' [ 46.712688] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 58.790283] audit: type=1400 audit(1684303974.716:6): 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 [ 59.903548] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 59.905445] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 59.907524] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 59.910819] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 59.912815] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 59.914241] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 60.322098] ------------[ cut here ]------------ [ 60.322893] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 60.325196] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 60.326549] Modules linked in: [ 60.327109] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 60.332173] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 60.333308] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 60.334004] 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 [ 60.336412] RSP: 0018:ffff88801f1b7c00 EFLAGS: 00010282 [ 60.337166] RAX: 0000000000000000 RBX: ffff88800f67d040 RCX: 0000000000000000 [ 60.338153] RDX: ffff88801f1a8000 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 60.339152] RBP: ffff88800f67d054 R08: 0000000000000001 R09: 0000000000000000 [ 60.340142] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 60.341128] R13: ffffffff84e223a0 R14: ffff88800f67d048 R15: ffffffff84d73340 [ 60.342126] FS: 0000555555d60400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 60.343234] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 60.344020] CR2: 00007fe32900c6f4 CR3: 000000001649c000 CR4: 0000000000350ee0 [ 60.345009] Call Trace: [ 60.345399] [ 60.345719] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 60.346402] ipv4_frags_init_net+0x269/0x440 [ 60.346993] ops_init+0xbb/0x6b0 [ 60.347524] setup_net+0x3d9/0x990 [ 60.348012] ? down_read_killable+0x1d7/0x4e0 [ 60.348659] ? __pfx_setup_net+0x10/0x10 [ 60.349232] ? copy_net_ns+0x17c/0x770 [ 60.349778] copy_net_ns+0x321/0x770 [ 60.350324] create_new_namespaces+0x3f6/0xb30 [ 60.350954] unshare_nsproxy_namespaces+0xc1/0x200 [ 60.351669] ksys_unshare+0x44d/0x8e0 [ 60.352235] ? __pfx_ksys_unshare+0x10/0x10 [ 60.352837] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 60.353654] __x64_sys_unshare+0x31/0x40 [ 60.354253] do_syscall_64+0x3f/0x90 [ 60.354776] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 60.355534] RIP: 0033:0x7fbef7ca90d7 [ 60.356078] 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 [ 60.358452] RSP: 002b:00007ffd00648278 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 60.359475] RAX: ffffffffffffffda RBX: 00007ffd006488b8 RCX: 00007fbef7ca90d7 [ 60.360429] RDX: 00007fbef7d1341f RSI: 00007ffd00648210 RDI: 0000000040000000 [ 60.361371] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd00648020 [ 60.362329] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fbef7dbbbf0 [ 60.363325] R13: 00007ffd00648350 R14: 0000000000000000 R15: 00000000000000f8 [ 60.364299] [ 60.364618] irq event stamp: 10617 [ 60.365123] hardirqs last enabled at (10629): [] __up_console_sem+0x78/0x80 [ 60.366273] hardirqs last disabled at (10640): [] __up_console_sem+0x5d/0x80 [ 60.367417] softirqs last enabled at (10150): [] irq_exit_rcu+0x93/0xc0 [ 60.368525] softirqs last disabled at (10141): [] irq_exit_rcu+0x93/0xc0 [ 60.369630] ---[ end trace 0000000000000000 ]--- [ 60.375502] ------------[ cut here ]------------ [ 60.376179] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 60.378020] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 60.379226] Modules linked in: [ 60.379675] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 60.380922] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 60.382013] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 60.382732] 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 [ 60.385082] RSP: 0018:ffff88801f1b7c00 EFLAGS: 00010282 [ 60.385802] RAX: 0000000000000000 RBX: ffff888016473840 RCX: 0000000000000000 [ 60.386782] RDX: ffff88801f1a8000 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 60.387783] RBP: ffff888016473854 R08: 0000000000000001 R09: 0000000000000000 [ 60.388759] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 60.389726] R13: ffffffff84e223a0 R14: ffff888016473848 R15: ffffffff84da62e0 [ 60.390697] FS: 0000555555d60400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 60.391824] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 60.392638] CR2: 00007fe32900c6f4 CR3: 000000001649c000 CR4: 0000000000350ee0 [ 60.393610] Call Trace: [ 60.393968] [ 60.394325] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 60.394994] ipv6_frags_init_net+0x206/0x3c0 [ 60.395655] ops_init+0xbb/0x6b0 [ 60.396170] setup_net+0x3d9/0x990 [ 60.396664] ? down_read_killable+0x1d7/0x4e0 [ 60.397316] ? __pfx_setup_net+0x10/0x10 [ 60.397875] ? copy_net_ns+0x17c/0x770 [ 60.398450] copy_net_ns+0x321/0x770 [ 60.398978] create_new_namespaces+0x3f6/0xb30 [ 60.399661] unshare_nsproxy_namespaces+0xc1/0x200 [ 60.400365] ksys_unshare+0x44d/0x8e0 [ 60.400906] ? __pfx_ksys_unshare+0x10/0x10 [ 60.401537] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 60.402344] __x64_sys_unshare+0x31/0x40 [ 60.402911] do_syscall_64+0x3f/0x90 [ 60.403482] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 60.404212] RIP: 0033:0x7fbef7ca90d7 [ 60.404720] 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 [ 60.407105] RSP: 002b:00007ffd00648278 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 60.408153] RAX: ffffffffffffffda RBX: 00007ffd006488b8 RCX: 00007fbef7ca90d7 [ 60.409147] RDX: 00007fbef7d1341f RSI: 00007ffd00648210 RDI: 0000000040000000 [ 60.410119] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd00648020 [ 60.411119] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fbef7dbbbf0 [ 60.412100] R13: 00007ffd00648350 R14: 0000000000000000 R15: 00000000000000f8 [ 60.413107] [ 60.413440] irq event stamp: 12283 [ 60.413916] hardirqs last enabled at (12293): [] __up_console_sem+0x78/0x80 [ 60.415104] hardirqs last disabled at (12304): [] __up_console_sem+0x5d/0x80 [ 60.416282] softirqs last enabled at (11790): [] irq_exit_rcu+0x93/0xc0 [ 60.417434] softirqs last disabled at (11785): [] irq_exit_rcu+0x93/0xc0 [ 60.418586] ---[ end trace 0000000000000000 ]--- [ 60.420238] ------------[ cut here ]------------ [ 60.420884] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 60.422943] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 60.424138] Modules linked in: [ 60.424587] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 60.425866] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 60.426994] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 60.427749] 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 [ 60.430137] RSP: 0018:ffff88801f1b7bf0 EFLAGS: 00010286 [ 60.430862] RAX: 0000000000000000 RBX: ffff88800f094240 RCX: 0000000000000000 [ 60.431851] RDX: ffff88801f1a8000 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 60.432825] RBP: ffff88800f094254 R08: 0000000000000001 R09: 0000000000000000 [ 60.433815] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 60.434798] R13: ffffffff84e223a0 R14: ffff88800f094248 R15: ffffffff84daf020 [ 60.435806] FS: 0000555555d60400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 60.436931] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 60.437754] CR2: 00007fe32900c6f4 CR3: 000000001649c000 CR4: 0000000000350ee0 [ 60.438751] Call Trace: [ 60.439167] [ 60.439500] nf_ct_net_init+0x224/0x3d0 [ 60.440099] ? __pfx_nf_ct_net_init+0x10/0x10 [ 60.440735] ops_init+0xbb/0x6b0 [ 60.441254] setup_net+0x3d9/0x990 [ 60.441759] ? down_read_killable+0x1d7/0x4e0 [ 60.442428] ? __pfx_setup_net+0x10/0x10 [ 60.443002] ? copy_net_ns+0x17c/0x770 [ 60.443610] copy_net_ns+0x321/0x770 [ 60.444171] create_new_namespaces+0x3f6/0xb30 [ 60.444823] unshare_nsproxy_namespaces+0xc1/0x200 [ 60.445545] ksys_unshare+0x44d/0x8e0 [ 60.446115] ? __pfx_ksys_unshare+0x10/0x10 [ 60.446722] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 60.447565] __x64_sys_unshare+0x31/0x40 [ 60.448180] do_syscall_64+0x3f/0x90 [ 60.448711] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 60.449465] RIP: 0033:0x7fbef7ca90d7 [ 60.449979] 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 [ 60.452416] RSP: 002b:00007ffd00648278 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 60.453465] RAX: ffffffffffffffda RBX: 00007ffd006488b8 RCX: 00007fbef7ca90d7 [ 60.454454] RDX: 00007fbef7d1341f RSI: 00007ffd00648210 RDI: 0000000040000000 [ 60.455437] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd00648020 [ 60.456416] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fbef7dbbbf0 [ 60.457409] R13: 00007ffd00648350 R14: 0000000000000000 R15: 00000000000000f8 [ 60.458414] [ 60.458745] irq event stamp: 13133 [ 60.459281] hardirqs last enabled at (13145): [] __up_console_sem+0x78/0x80 [ 60.460467] hardirqs last disabled at (13156): [] __up_console_sem+0x5d/0x80 [ 60.461657] softirqs last enabled at (12894): [] irq_exit_rcu+0x93/0xc0 [ 60.462821] softirqs last disabled at (12889): [] irq_exit_rcu+0x93/0xc0 [ 60.463975] ---[ end trace 0000000000000000 ]--- executing program [ 61.980795] Bluetooth: hci0: command 0x0409 tx timeout [ 64.028118] Bluetooth: hci0: command 0x041b tx timeout executing program [ 66.076130] Bluetooth: hci0: command 0x040f tx timeout executing program [ 68.124164] Bluetooth: hci0: command 0x0419 tx timeout VM DIAGNOSIS: 06:12:49 Registers: info registers vcpu 0 RAX=0000000000021aef 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=00007f5c59fe1240 CR3=000000000ea60000 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=092479918b72e19c224c0a0d262c2723 XMM02=6b1e99b806172e3b00000000000aea28 XMM03=ac8bc31478ec851100000000000aefa0 XMM04=3aa309cad2e5ff85000000000013c140 XMM05=d3fdd5f48436fbd700000000000aead0 XMM06=c1855a47f35952cf00000000000ae988 XMM07=a1fcdcf819d7e1e500000000000ae728 XMM08=44495f474f4c5359530069253d595449 XMM09=00000000000000000000000000000000 XMM10=00000000000000000020000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=dffffc0000000060 RBX=00000000000003fd RCX=0000000000000000 RDX=00000000000003fd RSI=ffffffff825075f0 RDI=ffffffff87f27c00 RBP=ffffffff87f27bc0 RSP=ffff88801f1b7598 R8 =0000000000000004 R9 =0000000000000010 R10=0000000000000010 R11=0000000000000001 R12=0000000000002710 R13=0000000000000020 R14=fffffbfff0fe4fd1 R15=dffffc0000000000 RIP=ffffffff82507645 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 0000555555d60400 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=00007fe32900c6f4 CR3=000000001649c000 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