syzkaller login: [ 43.875858] sshd (237) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:62405' (ECDSA) to the list of known hosts. 2023/05/17 09:50:32 fuzzer started 2023/05/17 09:50:32 dialing manager at localhost:35573 2023/05/17 09:50:32 checking machine... 2023/05/17 09:50:32 checking revisions... [ 44.722711] kmemleak: Automatic memory scanning thread ended 2023/05/17 09:50:32 testing simple program... [ 44.785083] cgroup: Unknown subsys name 'net' [ 44.851144] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 57.321427] audit: type=1400 audit(1684317045.535:6): avc: denied { execmem } for pid=265 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 58.434104] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 58.436313] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 58.437700] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 58.445609] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 58.447696] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 58.448530] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 58.753604] ------------[ cut here ]------------ [ 58.754146] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 58.755388] WARNING: CPU: 1 PID: 266 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 58.756108] Modules linked in: [ 58.756393] CPU: 1 PID: 266 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 58.757695] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 58.760616] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 58.761230] 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 [ 58.762943] RSP: 0018:ffff88801f7dfc00 EFLAGS: 00010282 [ 58.763439] RAX: 0000000000000000 RBX: ffff88800debc840 RCX: 0000000000000000 [ 58.764068] RDX: ffff88800ddc9b40 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 58.764652] RBP: ffff88800debc854 R08: 0000000000000001 R09: 0000000000000000 [ 58.765265] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 58.765907] R13: ffffffff84e223a0 R14: ffff88800debc848 R15: ffffffff84d73340 [ 58.766526] FS: 000055555599f400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 58.767180] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.767654] CR2: 00007f35feab16f4 CR3: 000000000db06000 CR4: 0000000000350ee0 [ 58.768250] Call Trace: [ 58.768487] [ 58.768687] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 58.769120] ipv4_frags_init_net+0x269/0x440 [ 58.769496] ops_init+0xbb/0x6b0 [ 58.769786] setup_net+0x3d9/0x990 [ 58.770124] ? down_read_killable+0x1d7/0x4e0 [ 58.770531] ? __pfx_setup_net+0x10/0x10 [ 58.770878] ? copy_net_ns+0x17c/0x770 [ 58.771227] copy_net_ns+0x321/0x770 [ 58.771538] create_new_namespaces+0x3f6/0xb30 [ 58.771922] unshare_nsproxy_namespaces+0xc1/0x200 [ 58.772374] ksys_unshare+0x44d/0x8e0 [ 58.772745] ? __pfx_ksys_unshare+0x10/0x10 [ 58.773135] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 58.773642] __x64_sys_unshare+0x31/0x40 [ 58.774048] do_syscall_64+0x3f/0x90 [ 58.774356] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 58.774776] RIP: 0033:0x7fc445ecd0d7 [ 58.775102] 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 [ 58.776533] RSP: 002b:00007fffadf42918 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 58.777165] RAX: ffffffffffffffda RBX: 00007fffadf42f58 RCX: 00007fc445ecd0d7 [ 58.777734] RDX: 00007fc445f3741f RSI: 00007fffadf428b0 RDI: 0000000040000000 [ 58.778349] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fffadf426c0 [ 58.778914] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fc445fdfbf0 [ 58.779506] R13: 00007fffadf429f0 R14: 0000000000000000 R15: 00000000000000f8 [ 58.780127] [ 58.780328] irq event stamp: 8165 [ 58.780634] hardirqs last enabled at (8175): [] __up_console_sem+0x78/0x80 [ 58.781359] hardirqs last disabled at (8186): [] __up_console_sem+0x5d/0x80 [ 58.782115] softirqs last enabled at (7770): [] irq_exit_rcu+0x93/0xc0 [ 58.782826] softirqs last disabled at (7755): [] irq_exit_rcu+0x93/0xc0 [ 58.783546] ---[ end trace 0000000000000000 ]--- [ 58.787980] ------------[ cut here ]------------ [ 58.788439] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 58.789635] WARNING: CPU: 1 PID: 266 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 58.790414] Modules linked in: [ 58.790689] CPU: 1 PID: 266 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 58.791454] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 58.792163] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 58.792598] 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 [ 58.794069] RSP: 0018:ffff88801f7dfc00 EFLAGS: 00010282 [ 58.794509] RAX: 0000000000000000 RBX: ffff8880145f0640 RCX: 0000000000000000 [ 58.795110] RDX: ffff88800ddc9b40 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 58.795680] RBP: ffff8880145f0654 R08: 0000000000000001 R09: 0000000000000000 [ 58.796269] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 58.796852] R13: ffffffff84e223a0 R14: ffff8880145f0648 R15: ffffffff84da62e0 [ 58.797454] FS: 000055555599f400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 58.798166] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.798637] CR2: 00007f35feab16f4 CR3: 000000000db06000 CR4: 0000000000350ee0 [ 58.799246] Call Trace: [ 58.799467] [ 58.799667] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 58.800092] ipv6_frags_init_net+0x206/0x3c0 [ 58.800458] ops_init+0xbb/0x6b0 [ 58.800748] setup_net+0x3d9/0x990 [ 58.801067] ? down_read_killable+0x1d7/0x4e0 [ 58.801435] ? __pfx_setup_net+0x10/0x10 [ 58.801778] ? copy_net_ns+0x17c/0x770 [ 58.802154] copy_net_ns+0x321/0x770 [ 58.802476] create_new_namespaces+0x3f6/0xb30 [ 58.802869] unshare_nsproxy_namespaces+0xc1/0x200 [ 58.803300] ksys_unshare+0x44d/0x8e0 [ 58.803644] ? __pfx_ksys_unshare+0x10/0x10 [ 58.804006] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 58.804519] __x64_sys_unshare+0x31/0x40 [ 58.804865] do_syscall_64+0x3f/0x90 [ 58.805201] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 58.805638] RIP: 0033:0x7fc445ecd0d7 [ 58.805976] 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 [ 58.807440] RSP: 002b:00007fffadf42918 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 58.808059] RAX: ffffffffffffffda RBX: 00007fffadf42f58 RCX: 00007fc445ecd0d7 [ 58.808634] RDX: 00007fc445f3741f RSI: 00007fffadf428b0 RDI: 0000000040000000 [ 58.809229] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fffadf426c0 [ 58.809787] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fc445fdfbf0 [ 58.810410] R13: 00007fffadf429f0 R14: 0000000000000000 R15: 00000000000000f8 [ 58.810970] [ 58.811209] irq event stamp: 10049 [ 58.811502] hardirqs last enabled at (10059): [] __up_console_sem+0x78/0x80 [ 58.812215] hardirqs last disabled at (10070): [] __up_console_sem+0x5d/0x80 [ 58.812929] softirqs last enabled at (10044): [] irq_exit_rcu+0x93/0xc0 [ 58.813663] softirqs last disabled at (10039): [] irq_exit_rcu+0x93/0xc0 [ 58.814397] ---[ end trace 0000000000000000 ]--- [ 58.815515] ------------[ cut here ]------------ [ 58.815888] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 58.817240] WARNING: CPU: 1 PID: 266 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 58.817976] Modules linked in: [ 58.818271] CPU: 1 PID: 266 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 58.819007] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 58.819690] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 58.820150] 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 [ 58.821573] RSP: 0018:ffff88801f7dfbf0 EFLAGS: 00010286 [ 58.822006] RAX: 0000000000000000 RBX: ffff8880145f0c40 RCX: 0000000000000000 [ 58.822582] RDX: ffff88800ddc9b40 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 58.823153] RBP: ffff8880145f0c54 R08: 0000000000000001 R09: 0000000000000000 [ 58.823757] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 58.824363] R13: ffffffff84e223a0 R14: ffff8880145f0c48 R15: ffffffff84daf020 [ 58.824922] FS: 000055555599f400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 58.825559] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.826065] CR2: 00007f35feab16f4 CR3: 000000000db06000 CR4: 0000000000350ee0 [ 58.826638] Call Trace: [ 58.826867] [ 58.827101] nf_ct_net_init+0x224/0x3d0 [ 58.827484] ? __pfx_nf_ct_net_init+0x10/0x10 [ 58.827882] ops_init+0xbb/0x6b0 [ 58.828200] setup_net+0x3d9/0x990 [ 58.828499] ? down_read_killable+0x1d7/0x4e0 [ 58.828943] ? __pfx_setup_net+0x10/0x10 [ 58.829326] ? copy_net_ns+0x17c/0x770 [ 58.829720] copy_net_ns+0x321/0x770 [ 58.830124] create_new_namespaces+0x3f6/0xb30 [ 58.830559] unshare_nsproxy_namespaces+0xc1/0x200 [ 58.831011] ksys_unshare+0x44d/0x8e0 [ 58.831375] ? __pfx_ksys_unshare+0x10/0x10 [ 58.831779] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 58.832312] __x64_sys_unshare+0x31/0x40 [ 58.832712] do_syscall_64+0x3f/0x90 [ 58.833130] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 58.833653] RIP: 0033:0x7fc445ecd0d7 [ 58.834102] 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 [ 58.835628] RSP: 002b:00007fffadf42918 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 58.836314] RAX: ffffffffffffffda RBX: 00007fffadf42f58 RCX: 00007fc445ecd0d7 [ 58.836995] RDX: 00007fc445f3741f RSI: 00007fffadf428b0 RDI: 0000000040000000 [ 58.837688] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fffadf426c0 [ 58.838466] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fc445fdfbf0 [ 58.839099] R13: 00007fffadf429f0 R14: 0000000000000000 R15: 00000000000000f8 [ 58.839689] [ 58.839887] irq event stamp: 10839 [ 58.840206] hardirqs last enabled at (10851): [] __up_console_sem+0x78/0x80 [ 58.840952] hardirqs last disabled at (10860): [] __up_console_sem+0x5d/0x80 [ 58.841723] softirqs last enabled at (10350): [] irq_exit_rcu+0x93/0xc0 [ 58.842464] softirqs last disabled at (10329): [] irq_exit_rcu+0x93/0xc0 [ 58.843213] ---[ end trace 0000000000000000 ]--- executing program [ 60.456645] Bluetooth: hci0: command 0x0409 tx timeout [ 62.504550] Bluetooth: hci0: command 0x041b tx timeout executing program [ 64.552181] Bluetooth: hci0: command 0x040f tx timeout executing program [ 66.601095] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 09:50:45 Registers: info registers vcpu 0 RAX=dffffc0000000000 RBX=0000000000000002 RCX=0000000000000000 RDX=0000000000000000 RSI=ffffffff81f1dde5 RDI=0000000000000001 RBP=ffff88800e523400 RSP=ffff888016f87cc8 R8 =0000000000000001 R9 =0000000000000001 R10=0000000000000001 R11=0000000000000001 R12=ffff88800e9a1540 R13=ffff88800e523420 R14=0000000000000001 R15=ffff88800da3fa20 RIP=ffffffff81f1fbfa RFL=00000212 [----A--] 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 00007f1586408700 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=00007f7b1b4c70f8 CR3=0000000015bfe000 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=2036343a30353a39302037312079614d XMM01=5d3539363735372e38352020205b203a XMM02=435020647261646e61745320554d4551 XMM03=312e3120534f4942202c293639393120 XMM04=32312e3120534f4942202c2936393931 XMM05=20435020647261646e61745320554d45 XMM06=205d3539363735372e38352020205b20 XMM07=732036343a30353a3930203731207961 XMM08=7475636578652d7a7973223d6d6d6f63 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000000000065 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507685 RDI=ffffffff87f27c00 RBP=ffffffff87f27bc0 RSP=ffff88801f7df618 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000065 R11=0000000000000001 R12=0000000000000065 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 000055555599f400 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=00007f35feab16f4 CR3=000000000db06000 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