syzkaller login: [ 38.092997] sshd (224) used greatest stack depth: 24160 bytes left Warning: Permanently added '[localhost]:58603' (ECDSA) to the list of known hosts. 2023/05/18 07:53:20 fuzzer started 2023/05/18 07:53:20 dialing manager at localhost:44319 2023/05/18 07:53:20 checking machine... 2023/05/18 07:53:20 checking revisions... [ 39.289185] kmemleak: Automatic memory scanning thread ended 2023/05/18 07:53:20 testing simple program... [ 39.359818] cgroup: Unknown subsys name 'net' [ 39.446902] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program executing program [ 54.168044] audit: type=1400 audit(1684396415.758:6): 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 [ 55.279904] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 55.281589] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 55.283313] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 55.286259] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 55.288331] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 55.290060] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 55.688004] ------------[ cut here ]------------ [ 55.688916] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 55.690774] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 55.691851] Modules linked in: [ 55.692251] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 55.697351] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 55.698527] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 55.699340] 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 60 40 e2 84 e8 fa ff d4 fc <0f> 0b 48 89 e8 48 c1 e8 03 42 0f b6 14 20 48 89 e8 83 e0 07 83 c0 [ 55.701535] RSP: 0018:ffff88801ed0fc00 EFLAGS: 00010282 [ 55.702230] RAX: 0000000000000000 RBX: ffff8880165c4840 RCX: 0000000000000000 [ 55.703139] RDX: ffff888019268000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 55.704046] RBP: ffff8880165c4854 R08: 0000000000000001 R09: 0000000000000000 [ 55.704964] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 55.705867] R13: ffffffff84e23fe0 R14: ffff8880165c4848 R15: ffffffff84d74dc0 [ 55.706770] FS: 0000555555d38400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 55.707772] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.708484] CR2: 00007f0bec99d000 CR3: 000000001bd66000 CR4: 0000000000350ef0 [ 55.709406] Call Trace: [ 55.709772] [ 55.710077] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 55.710719] ipv4_frags_init_net+0x269/0x440 [ 55.711279] ops_init+0xbb/0x6b0 [ 55.711759] setup_net+0x3d9/0x990 [ 55.712217] ? down_read_killable+0x1d7/0x4e0 [ 55.712814] ? __pfx_setup_net+0x10/0x10 [ 55.713332] ? copy_net_ns+0x17c/0x770 [ 55.713870] copy_net_ns+0x321/0x770 [ 55.714356] create_new_namespaces+0x3f6/0xb30 [ 55.714981] unshare_nsproxy_namespaces+0xc1/0x200 [ 55.715598] ksys_unshare+0x44d/0x8e0 [ 55.716117] ? __pfx_ksys_unshare+0x10/0x10 [ 55.716661] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 55.717418] __x64_sys_unshare+0x31/0x40 [ 55.717970] do_syscall_64+0x3f/0x90 [ 55.718453] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 55.719127] RIP: 0033:0x7f6a59f990d7 [ 55.719592] 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 [ 55.721750] RSP: 002b:00007ffca28618f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 55.722659] RAX: ffffffffffffffda RBX: 00007ffca2861f38 RCX: 00007f6a59f990d7 [ 55.723540] RDX: 00007f6a5a00341f RSI: 00007ffca2861890 RDI: 0000000040000000 [ 55.724420] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffca28616a0 [ 55.725320] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f6a5a0abbf0 [ 55.726217] R13: 00007ffca28619d0 R14: 0000000000000000 R15: 00000000000000f8 [ 55.727133] [ 55.727433] irq event stamp: 10149 [ 55.727895] hardirqs last enabled at (10161): [] __up_console_sem+0x78/0x80 [ 55.728981] hardirqs last disabled at (10172): [] __up_console_sem+0x5d/0x80 [ 55.730048] softirqs last enabled at (9754): [] irq_exit_rcu+0x93/0xc0 [ 55.731082] softirqs last disabled at (9745): [] irq_exit_rcu+0x93/0xc0 [ 55.732101] ---[ end trace 0000000000000000 ]--- [ 55.739013] ------------[ cut here ]------------ [ 55.739608] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 55.741348] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 55.742434] Modules linked in: [ 55.742888] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 55.744044] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 55.745092] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 55.745772] 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 60 40 e2 84 e8 fa ff d4 fc <0f> 0b 48 89 e8 48 c1 e8 03 42 0f b6 14 20 48 89 e8 83 e0 07 83 c0 [ 55.747967] RSP: 0018:ffff88801ed0fc00 EFLAGS: 00010282 [ 55.748626] RAX: 0000000000000000 RBX: ffff8880164f3c40 RCX: 0000000000000000 [ 55.749551] RDX: ffff888019268000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 55.750443] RBP: ffff8880164f3c54 R08: 0000000000000001 R09: 0000000000000000 [ 55.751336] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 55.752236] R13: ffffffff84e23fe0 R14: ffff8880164f3c48 R15: ffffffff84da7d60 [ 55.753141] FS: 0000555555d38400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 55.754147] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.754904] CR2: 00007f0bec99d000 CR3: 000000001bd66000 CR4: 0000000000350ef0 [ 55.755801] Call Trace: [ 55.756135] [ 55.756435] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 55.757098] ipv6_frags_init_net+0x206/0x3c0 [ 55.757704] ops_init+0xbb/0x6b0 [ 55.758156] setup_net+0x3d9/0x990 [ 55.758612] ? down_read_killable+0x1d7/0x4e0 [ 55.759218] ? __pfx_setup_net+0x10/0x10 [ 55.759764] ? copy_net_ns+0x17c/0x770 [ 55.760275] copy_net_ns+0x321/0x770 [ 55.760797] create_new_namespaces+0x3f6/0xb30 [ 55.761402] unshare_nsproxy_namespaces+0xc1/0x200 [ 55.762052] ksys_unshare+0x44d/0x8e0 [ 55.762544] ? __pfx_ksys_unshare+0x10/0x10 [ 55.763119] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 55.763864] __x64_sys_unshare+0x31/0x40 [ 55.764392] do_syscall_64+0x3f/0x90 [ 55.764916] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 55.765569] RIP: 0033:0x7f6a59f990d7 [ 55.766058] 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 [ 55.768247] RSP: 002b:00007ffca28618f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 55.769217] RAX: ffffffffffffffda RBX: 00007ffca2861f38 RCX: 00007f6a59f990d7 [ 55.770110] RDX: 00007f6a5a00341f RSI: 00007ffca2861890 RDI: 0000000040000000 [ 55.771006] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffca28616a0 [ 55.771898] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f6a5a0abbf0 [ 55.772806] R13: 00007ffca28619d0 R14: 0000000000000000 R15: 00000000000000f8 [ 55.773747] [ 55.774055] irq event stamp: 13491 [ 55.774490] hardirqs last enabled at (13501): [] __up_console_sem+0x78/0x80 [ 55.775556] hardirqs last disabled at (13512): [] __up_console_sem+0x5d/0x80 [ 55.776631] softirqs last enabled at (13016): [] irq_exit_rcu+0x93/0xc0 [ 55.777695] softirqs last disabled at (13011): [] irq_exit_rcu+0x93/0xc0 [ 55.778729] ---[ end trace 0000000000000000 ]--- [ 55.780081] ------------[ cut here ]------------ [ 55.780658] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 55.782574] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 55.783654] Modules linked in: [ 55.784088] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 55.785274] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 55.786275] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 55.786965] 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 60 40 e2 84 e8 fa ff d4 fc <0f> 0b 48 89 e8 48 c1 e8 03 42 0f b6 14 20 48 89 e8 83 e0 07 83 c0 [ 55.789154] RSP: 0018:ffff88801ed0fbf0 EFLAGS: 00010286 [ 55.789838] RAX: 0000000000000000 RBX: ffff8880164f2040 RCX: 0000000000000000 [ 55.790743] RDX: ffff888019268000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 55.791606] RBP: ffff8880164f2054 R08: 0000000000000001 R09: 0000000000000000 [ 55.792499] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 55.793403] R13: ffffffff84e23fe0 R14: ffff8880164f2048 R15: ffffffff84db0aa0 [ 55.794299] FS: 0000555555d38400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 55.795299] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.796040] CR2: 00007f0bec99d000 CR3: 000000001bd66000 CR4: 0000000000350ef0 [ 55.796987] Call Trace: [ 55.797324] [ 55.797627] nf_ct_net_init+0x224/0x3d0 [ 55.798175] ? __pfx_nf_ct_net_init+0x10/0x10 [ 55.798786] ops_init+0xbb/0x6b0 [ 55.799243] setup_net+0x3d9/0x990 [ 55.799736] ? down_read_killable+0x1d7/0x4e0 [ 55.800306] ? __pfx_setup_net+0x10/0x10 [ 55.800847] ? copy_net_ns+0x17c/0x770 [ 55.801378] copy_net_ns+0x321/0x770 [ 55.801898] create_new_namespaces+0x3f6/0xb30 [ 55.802496] unshare_nsproxy_namespaces+0xc1/0x200 [ 55.803148] ksys_unshare+0x44d/0x8e0 [ 55.803642] ? __pfx_ksys_unshare+0x10/0x10 [ 55.804225] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 55.804987] __x64_sys_unshare+0x31/0x40 [ 55.805507] do_syscall_64+0x3f/0x90 [ 55.806029] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 55.806714] RIP: 0033:0x7f6a59f990d7 [ 55.807179] 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 [ 55.809378] RSP: 002b:00007ffca28618f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 55.810324] RAX: ffffffffffffffda RBX: 00007ffca2861f38 RCX: 00007f6a59f990d7 [ 55.811222] RDX: 00007f6a5a00341f RSI: 00007ffca2861890 RDI: 0000000040000000 [ 55.812124] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffca28616a0 [ 55.813023] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f6a5a0abbf0 [ 55.813901] R13: 00007ffca28619d0 R14: 0000000000000000 R15: 00000000000000f8 [ 55.814828] [ 55.815132] irq event stamp: 14285 [ 55.815563] hardirqs last enabled at (14295): [] __up_console_sem+0x78/0x80 [ 55.816653] hardirqs last disabled at (14306): [] __up_console_sem+0x5d/0x80 [ 55.817758] softirqs last enabled at (14192): [] irq_exit_rcu+0x93/0xc0 [ 55.818794] softirqs last disabled at (14183): [] irq_exit_rcu+0x93/0xc0 [ 55.819839] ---[ end trace 0000000000000000 ]--- executing program [ 57.304098] Bluetooth: hci0: command 0x0409 tx timeout [ 59.351454] Bluetooth: hci0: command 0x041b tx timeout executing program [ 61.398803] Bluetooth: hci0: command 0x040f tx timeout executing program [ 63.446868] Bluetooth: hci0: command 0x0419 tx timeout VM DIAGNOSIS: 07:53:34 Registers: info registers vcpu 0 RAX=0000000000000047 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507f85 RDI=ffffffff87f2dc00 RBP=ffffffff87f2dbc0 RSP=ffff88801ed0f5f0 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000047 R11=0000000000000001 R12=0000000000000047 R13=ffffffff87f2dbc0 R14=0000000000000010 R15=ffffffff82507f70 RIP=ffffffff82507fdd 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 0000555555d38400 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=00007f0bec99d000 CR3=000000001bd66000 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=0000000000037a59 RBX=0000000000000001 RCX=ffffffff844d0a0e RDX=0000000000000000 RSI=0000000000000000 RDI=ffffffff81287415 RBP=dffffc0000000000 RSP=ffff888008dcfe70 R8 =0000000000000001 R9 =ffffed100d9e69f8 R10=ffff88806cf34fc3 R11=0000000000000001 R12=ffffffff85d35a10 R13=1ffff110011b9fd3 R14=0000000000000000 R15=0000000000000000 RIP=ffffffff844d199f 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 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=00007f0bec9060a0 CR3=000000000e95e000 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=2037333a33353a37302038312079614d XMM01=5d3631393838362e35352020205b203a XMM02=657268745f776f6c5f6761726670692f XMM03=6c61626f6c67206c656e72656b206f74 XMM04=6f6c5f676172667069203a6174616420 XMM05=2073746e696f702061746164203a6873 XMM06=347670692f74656e206c746373797320 XMM07=6c656e72656b2072656c6c616b7a7973 XMM08=7475636578652d7a7973223d6d6d6f63 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000