syzkaller login: [ 37.512093] sshd (226) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:35293' (ECDSA) to the list of known hosts. 2023/05/16 17:12:57 fuzzer started 2023/05/16 17:12:57 dialing manager at localhost:35573 2023/05/16 17:12:57 checking machine... 2023/05/16 17:12:57 checking revisions... [ 38.672612] kmemleak: Automatic memory scanning thread ended 2023/05/16 17:12:57 testing simple program... [ 38.733969] cgroup: Unknown subsys name 'net' [ 38.805144] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 51.535066] audit: type=1400 audit(1684257190.490:6): 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 [ 52.675681] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 52.678201] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 52.679902] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 52.683080] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 52.685860] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 52.687590] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 53.107544] ------------[ cut here ]------------ [ 53.108209] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 53.110259] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 53.111310] Modules linked in: [ 53.111717] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 53.116972] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 53.118004] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 53.118676] 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 [ 53.120851] RSP: 0018:ffff888020557c00 EFLAGS: 00010282 [ 53.121533] RAX: 0000000000000000 RBX: ffff8880145a3040 RCX: 0000000000000000 [ 53.122426] RDX: ffff888016b1d1c0 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 53.123321] RBP: ffff8880145a3054 R08: 0000000000000001 R09: 0000000000000000 [ 53.124183] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 53.125068] R13: ffffffff84e223a0 R14: ffff8880145a3048 R15: ffffffff84d73340 [ 53.125974] FS: 00005555559d0400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 53.126986] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.127733] CR2: 00007ffbe07186f4 CR3: 0000000020588000 CR4: 0000000000350ee0 [ 53.128671] Call Trace: [ 53.128999] [ 53.129338] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 53.129946] ipv4_frags_init_net+0x269/0x440 [ 53.130554] ops_init+0xbb/0x6b0 [ 53.131001] setup_net+0x3d9/0x990 [ 53.131491] ? down_read_killable+0x1d7/0x4e0 [ 53.132069] ? __pfx_setup_net+0x10/0x10 [ 53.132608] ? copy_net_ns+0x17c/0x770 [ 53.133108] copy_net_ns+0x321/0x770 [ 53.133615] create_new_namespaces+0x3f6/0xb30 [ 53.134196] unshare_nsproxy_namespaces+0xc1/0x200 [ 53.134847] ksys_unshare+0x44d/0x8e0 [ 53.135374] ? __pfx_ksys_unshare+0x10/0x10 [ 53.135922] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 53.136682] __x64_sys_unshare+0x31/0x40 [ 53.137201] do_syscall_64+0x3f/0x90 [ 53.137712] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 53.138389] RIP: 0033:0x7f36059a70d7 [ 53.138855] 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 [ 53.141035] RSP: 002b:00007ffe4f6d9d88 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 53.141998] RAX: ffffffffffffffda RBX: 00007ffe4f6da3c8 RCX: 00007f36059a70d7 [ 53.142893] RDX: 00007f3605a1141f RSI: 00007ffe4f6d9d20 RDI: 0000000040000000 [ 53.143785] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffe4f6d9b30 [ 53.144695] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f3605ab9bf0 [ 53.145601] R13: 00007ffe4f6d9e60 R14: 0000000000000000 R15: 00000000000000f8 [ 53.146526] [ 53.146830] irq event stamp: 10379 [ 53.147300] hardirqs last enabled at (10391): [] __up_console_sem+0x78/0x80 [ 53.148386] hardirqs last disabled at (10402): [] __up_console_sem+0x5d/0x80 [ 53.149459] softirqs last enabled at (9914): [] irq_exit_rcu+0x93/0xc0 [ 53.150504] softirqs last disabled at (9909): [] irq_exit_rcu+0x93/0xc0 [ 53.151543] ---[ end trace 0000000000000000 ]--- [ 53.158946] ------------[ cut here ]------------ [ 53.159702] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 53.161654] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 53.162725] Modules linked in: [ 53.163136] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 53.164334] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 53.165367] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 53.166006] 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 [ 53.168244] RSP: 0018:ffff888020557c00 EFLAGS: 00010282 [ 53.168890] RAX: 0000000000000000 RBX: ffff888015ceb440 RCX: 0000000000000000 [ 53.169781] RDX: ffff888016b1d1c0 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 53.170667] RBP: ffff888015ceb454 R08: 0000000000000001 R09: 0000000000000000 [ 53.171565] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 53.172474] R13: ffffffff84e223a0 R14: ffff888015ceb448 R15: ffffffff84da62e0 [ 53.173378] FS: 00005555559d0400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 53.174369] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.175076] CR2: 00007ffbe07186f4 CR3: 0000000020588000 CR4: 0000000000350ee0 [ 53.175975] Call Trace: [ 53.176380] [ 53.176685] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 53.177347] ipv6_frags_init_net+0x206/0x3c0 [ 53.177909] ops_init+0xbb/0x6b0 [ 53.178391] setup_net+0x3d9/0x990 [ 53.178842] ? down_read_killable+0x1d7/0x4e0 [ 53.179439] ? __pfx_setup_net+0x10/0x10 [ 53.179947] ? copy_net_ns+0x17c/0x770 [ 53.180506] copy_net_ns+0x321/0x770 [ 53.180989] create_new_namespaces+0x3f6/0xb30 [ 53.181611] unshare_nsproxy_namespaces+0xc1/0x200 [ 53.182270] ksys_unshare+0x44d/0x8e0 [ 53.182767] ? __pfx_ksys_unshare+0x10/0x10 [ 53.183356] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 53.184076] __x64_sys_unshare+0x31/0x40 [ 53.184631] do_syscall_64+0x3f/0x90 [ 53.185105] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 53.185796] RIP: 0033:0x7f36059a70d7 [ 53.186294] 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 [ 53.188523] RSP: 002b:00007ffe4f6d9d88 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 53.189487] RAX: ffffffffffffffda RBX: 00007ffe4f6da3c8 RCX: 00007f36059a70d7 [ 53.190382] RDX: 00007f3605a1141f RSI: 00007ffe4f6d9d20 RDI: 0000000040000000 [ 53.191297] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffe4f6d9b30 [ 53.192178] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f3605ab9bf0 [ 53.193081] R13: 00007ffe4f6d9e60 R14: 0000000000000000 R15: 00000000000000f8 [ 53.194007] [ 53.194342] irq event stamp: 12257 [ 53.194780] hardirqs last enabled at (12267): [] __up_console_sem+0x78/0x80 [ 53.195858] hardirqs last disabled at (12278): [] __up_console_sem+0x5d/0x80 [ 53.196966] softirqs last enabled at (12140): [] irq_exit_rcu+0x93/0xc0 [ 53.198020] softirqs last disabled at (12135): [] irq_exit_rcu+0x93/0xc0 [ 53.199057] ---[ end trace 0000000000000000 ]--- [ 53.200581] ------------[ cut here ]------------ [ 53.201174] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 53.203131] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 53.204207] Modules linked in: [ 53.204640] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 53.205807] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 53.206832] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 53.207505] 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 [ 53.209723] RSP: 0018:ffff888020557bf0 EFLAGS: 00010286 [ 53.210420] RAX: 0000000000000000 RBX: ffff888015cea240 RCX: 0000000000000000 [ 53.211307] RDX: ffff888016b1d1c0 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 53.212172] RBP: ffff888015cea254 R08: 0000000000000001 R09: 0000000000000000 [ 53.213084] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 53.214084] R13: ffffffff84e223a0 R14: ffff888015cea248 R15: ffffffff84daf020 [ 53.215171] FS: 00005555559d0400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 53.216437] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.217375] CR2: 00007ffbe07186f4 CR3: 0000000020588000 CR4: 0000000000350ee0 [ 53.218482] Call Trace: [ 53.218894] [ 53.219315] nf_ct_net_init+0x224/0x3d0 [ 53.219946] ? __pfx_nf_ct_net_init+0x10/0x10 [ 53.220703] ops_init+0xbb/0x6b0 [ 53.221286] setup_net+0x3d9/0x990 [ 53.221839] ? down_read_killable+0x1d7/0x4e0 [ 53.222595] ? __pfx_setup_net+0x10/0x10 [ 53.223209] ? copy_net_ns+0x17c/0x770 [ 53.223866] copy_net_ns+0x321/0x770 [ 53.224538] create_new_namespaces+0x3f6/0xb30 [ 53.225300] unshare_nsproxy_namespaces+0xc1/0x200 [ 53.226037] ksys_unshare+0x44d/0x8e0 [ 53.226685] ? __pfx_ksys_unshare+0x10/0x10 [ 53.227394] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 53.228319] __x64_sys_unshare+0x31/0x40 [ 53.228939] do_syscall_64+0x3f/0x90 [ 53.229576] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 53.230394] RIP: 0033:0x7f36059a70d7 [ 53.230958] 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 [ 53.233590] RSP: 002b:00007ffe4f6d9d88 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 53.234744] RAX: ffffffffffffffda RBX: 00007ffe4f6da3c8 RCX: 00007f36059a70d7 [ 53.235845] RDX: 00007f3605a1141f RSI: 00007ffe4f6d9d20 RDI: 0000000040000000 [ 53.236965] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffe4f6d9b30 [ 53.238062] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f3605ab9bf0 [ 53.239163] R13: 00007ffe4f6d9e60 R14: 0000000000000000 R15: 00000000000000f8 [ 53.240283] [ 53.240645] irq event stamp: 13049 [ 53.241173] hardirqs last enabled at (13059): [] __up_console_sem+0x78/0x80 [ 53.242525] hardirqs last disabled at (13072): [] __up_console_sem+0x5d/0x80 [ 53.243828] softirqs last enabled at (12540): [] irq_exit_rcu+0x93/0xc0 [ 53.245116] softirqs last disabled at (12529): [] irq_exit_rcu+0x93/0xc0 [ 53.246377] ---[ end trace 0000000000000000 ]--- executing program [ 54.754888] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 56.803360] Bluetooth: hci0: command 0x041b tx timeout [ 58.850316] Bluetooth: hci0: command 0x040f tx timeout executing program [ 60.898374] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 17:13:09 Registers: info registers vcpu 0 RAX=0000000000022299 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=00000206 [-----P-] 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=00007f650e4a7000 CR3=000000000e38c000 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=00000000000000ff00000000000000ff XMM02=00000000000000ff00000000000000ff XMM03=6465746e69615420302e726f74756365 XMM04=636f72703d7373616c63742030733a74 XMM05=3a755f6d65747379733d747865746e6f XMM06=5f6d65747379733a755f6d6574737973 XMM07=00000000000000000000000000000000 XMM08=2020205b3e343c003030303030303000 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000000000072 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507685 RDI=ffffffff87f27c00 RBP=ffffffff87f27bc0 RSP=ffff8880205575f0 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000072 R11=0000000000000001 R12=0000000000000072 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 00005555559d0400 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=00007ffbe07186f4 CR3=0000000020588000 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