syzkaller login: [ 31.737843] sshd (211) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:18308' (ECDSA) to the list of known hosts. 2023/05/16 18:48:11 fuzzer started 2023/05/16 18:48:11 dialing manager at localhost:35573 2023/05/16 18:48:12 checking machine... 2023/05/16 18:48:12 checking revisions... [ 36.539549] kmemleak: Automatic memory scanning thread ended 2023/05/16 18:48:12 testing simple program... [ 36.606467] cgroup: Unknown subsys name 'net' [ 36.674036] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 49.699556] audit: type=1400 audit(1684262905.317:6): avc: denied { execmem } for pid=257 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 50.816906] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 50.818997] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 50.821570] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 50.825205] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 50.827607] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 50.828728] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 51.237904] ------------[ cut here ]------------ [ 51.238595] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 51.240609] WARNING: CPU: 1 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 51.241660] Modules linked in: [ 51.242100] CPU: 1 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 51.246908] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 51.247929] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 51.248601] 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 [ 51.250781] RSP: 0018:ffff888015927c00 EFLAGS: 00010282 [ 51.251480] RAX: 0000000000000000 RBX: ffff88800ff2fc40 RCX: 0000000000000000 [ 51.252399] RDX: ffff88800d6e9b40 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 51.253298] RBP: ffff88800ff2fc54 R08: 0000000000000001 R09: 0000000000000000 [ 51.254191] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 51.255047] R13: ffffffff84e223a0 R14: ffff88800ff2fc48 R15: ffffffff84d73340 [ 51.255926] FS: 00005555563c9400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 51.256919] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.257657] CR2: 00007f4cbde776f4 CR3: 000000001814c000 CR4: 0000000000350ee0 [ 51.258596] Call Trace: [ 51.258922] [ 51.259254] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 51.259860] ipv4_frags_init_net+0x269/0x440 [ 51.260435] ops_init+0xbb/0x6b0 [ 51.260888] setup_net+0x3d9/0x990 [ 51.261388] ? down_read_killable+0x1d7/0x4e0 [ 51.261966] ? __pfx_setup_net+0x10/0x10 [ 51.262534] ? copy_net_ns+0x17c/0x770 [ 51.263052] copy_net_ns+0x321/0x770 [ 51.263577] create_new_namespaces+0x3f6/0xb30 [ 51.264199] unshare_nsproxy_namespaces+0xc1/0x200 [ 51.264838] ksys_unshare+0x44d/0x8e0 [ 51.265383] ? __pfx_ksys_unshare+0x10/0x10 [ 51.265940] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 51.266701] __x64_sys_unshare+0x31/0x40 [ 51.267267] do_syscall_64+0x3f/0x90 [ 51.267738] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 51.268415] RIP: 0033:0x7f0c2d1f30d7 [ 51.268883] 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 [ 51.271137] RSP: 002b:00007ffdbd706048 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 51.272099] RAX: ffffffffffffffda RBX: 00007ffdbd706688 RCX: 00007f0c2d1f30d7 [ 51.272998] RDX: 00007f0c2d25d41f RSI: 00007ffdbd705fe0 RDI: 0000000040000000 [ 51.273881] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffdbd705df0 [ 51.274783] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f0c2d305bf0 [ 51.275657] R13: 00007ffdbd706120 R14: 0000000000000000 R15: 00000000000000f8 [ 51.276551] [ 51.276853] irq event stamp: 7753 [ 51.277296] hardirqs last enabled at (7765): [] __up_console_sem+0x78/0x80 [ 51.278379] hardirqs last disabled at (7776): [] __up_console_sem+0x5d/0x80 [ 51.279416] softirqs last enabled at (7662): [] irq_exit_rcu+0x93/0xc0 [ 51.280443] softirqs last disabled at (7657): [] irq_exit_rcu+0x93/0xc0 [ 51.281491] ---[ end trace 0000000000000000 ]--- [ 51.286769] ------------[ cut here ]------------ [ 51.287387] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 51.289174] WARNING: CPU: 1 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 51.290287] Modules linked in: [ 51.290693] CPU: 1 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 51.291844] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 51.292855] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 51.293523] 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 [ 51.295716] RSP: 0018:ffff888015927c00 EFLAGS: 00010282 [ 51.296398] RAX: 0000000000000000 RBX: ffff88800957fc40 RCX: 0000000000000000 [ 51.297298] RDX: ffff88800d6e9b40 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 51.298192] RBP: ffff88800957fc54 R08: 0000000000000001 R09: 0000000000000000 [ 51.299118] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 51.300003] R13: ffffffff84e223a0 R14: ffff88800957fc48 R15: ffffffff84da62e0 [ 51.300895] FS: 00005555563c9400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 51.301886] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.302653] CR2: 00007f4cbde776f4 CR3: 000000001814c000 CR4: 0000000000350ee0 [ 51.303531] Call Trace: [ 51.303853] [ 51.304185] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 51.304787] ipv6_frags_init_net+0x206/0x3c0 [ 51.305362] ops_init+0xbb/0x6b0 [ 51.305810] setup_net+0x3d9/0x990 [ 51.306297] ? down_read_killable+0x1d7/0x4e0 [ 51.306871] ? __pfx_setup_net+0x10/0x10 [ 51.307418] ? copy_net_ns+0x17c/0x770 [ 51.307947] copy_net_ns+0x321/0x770 [ 51.308483] create_new_namespaces+0x3f6/0xb30 [ 51.309116] unshare_nsproxy_namespaces+0xc1/0x200 [ 51.309760] ksys_unshare+0x44d/0x8e0 [ 51.310305] ? __pfx_ksys_unshare+0x10/0x10 [ 51.310878] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 51.311611] __x64_sys_unshare+0x31/0x40 [ 51.312153] do_syscall_64+0x3f/0x90 [ 51.312626] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 51.313291] RIP: 0033:0x7f0c2d1f30d7 [ 51.313748] 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 [ 51.315931] RSP: 002b:00007ffdbd706048 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 51.316903] RAX: ffffffffffffffda RBX: 00007ffdbd706688 RCX: 00007f0c2d1f30d7 [ 51.317787] RDX: 00007f0c2d25d41f RSI: 00007ffdbd705fe0 RDI: 0000000040000000 [ 51.318691] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffdbd705df0 [ 51.319570] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f0c2d305bf0 [ 51.320459] R13: 00007ffdbd706120 R14: 0000000000000000 R15: 00000000000000f8 [ 51.321363] [ 51.321662] irq event stamp: 9709 [ 51.322116] hardirqs last enabled at (9721): [] __up_console_sem+0x78/0x80 [ 51.323189] hardirqs last disabled at (9732): [] __up_console_sem+0x5d/0x80 [ 51.324257] softirqs last enabled at (9382): [] irq_exit_rcu+0x93/0xc0 [ 51.325355] softirqs last disabled at (9373): [] irq_exit_rcu+0x93/0xc0 [ 51.326398] ---[ end trace 0000000000000000 ]--- [ 51.328098] ------------[ cut here ]------------ [ 51.328687] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 51.330686] WARNING: CPU: 1 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 51.331771] Modules linked in: [ 51.332205] CPU: 1 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 51.333364] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 51.334402] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 51.335040] 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 [ 51.337267] RSP: 0018:ffff888015927bf0 EFLAGS: 00010286 [ 51.337940] RAX: 0000000000000000 RBX: ffff888013a34a40 RCX: 0000000000000000 [ 51.338865] RDX: ffff88800d6e9b40 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 51.339804] RBP: ffff888013a34a54 R08: 0000000000000001 R09: 0000000000000000 [ 51.340723] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 51.341637] R13: ffffffff84e223a0 R14: ffff888013a34a48 R15: ffffffff84daf020 [ 51.342591] FS: 00005555563c9400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 51.343641] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.344418] CR2: 00007f4cbde776f4 CR3: 000000001814c000 CR4: 0000000000350ee0 [ 51.345328] Call Trace: [ 51.345672] [ 51.345979] nf_ct_net_init+0x224/0x3d0 [ 51.346558] ? __pfx_nf_ct_net_init+0x10/0x10 [ 51.347182] ops_init+0xbb/0x6b0 [ 51.347636] setup_net+0x3d9/0x990 [ 51.348132] ? down_read_killable+0x1d7/0x4e0 [ 51.348723] ? __pfx_setup_net+0x10/0x10 [ 51.349292] ? copy_net_ns+0x17c/0x770 [ 51.349830] copy_net_ns+0x321/0x770 [ 51.350374] create_new_namespaces+0x3f6/0xb30 [ 51.350983] unshare_nsproxy_namespaces+0xc1/0x200 [ 51.351642] ksys_unshare+0x44d/0x8e0 [ 51.352196] ? __pfx_ksys_unshare+0x10/0x10 [ 51.352786] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 51.353553] __x64_sys_unshare+0x31/0x40 [ 51.354128] do_syscall_64+0x3f/0x90 [ 51.354640] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 51.355342] RIP: 0033:0x7f0c2d1f30d7 [ 51.355833] 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 [ 51.358105] RSP: 002b:00007ffdbd706048 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 51.359109] RAX: ffffffffffffffda RBX: 00007ffdbd706688 RCX: 00007f0c2d1f30d7 [ 51.359993] RDX: 00007f0c2d25d41f RSI: 00007ffdbd705fe0 RDI: 0000000040000000 [ 51.360919] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffdbd705df0 [ 51.361843] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f0c2d305bf0 [ 51.362770] R13: 00007ffdbd706120 R14: 0000000000000000 R15: 00000000000000f8 [ 51.363705] [ 51.364017] irq event stamp: 10547 [ 51.364501] hardirqs last enabled at (10559): [] __up_console_sem+0x78/0x80 [ 51.365620] hardirqs last disabled at (10576): [] __up_console_sem+0x5d/0x80 [ 51.366738] softirqs last enabled at (10572): [] irq_exit_rcu+0x93/0xc0 [ 51.367779] softirqs last disabled at (10567): [] irq_exit_rcu+0x93/0xc0 [ 51.368812] ---[ end trace 0000000000000000 ]--- executing program [ 52.903560] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 54.950267] Bluetooth: hci0: command 0x041b tx timeout [ 56.999130] Bluetooth: hci0: command 0x040f tx timeout executing program [ 59.046233] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 18:48:26 Registers: info registers vcpu 0 RAX=1ffff11002dccf08 RBX=ffff888016e67540 RCX=0000000000000000 RDX=0000000000000000 RSI=0000000000000000 RDI=ffff888016e67588 RBP=ffff888008e041a0 RSP=ffff888016e67458 R8 =dffffc0000000000 R9 =0000000000000000 R10=ffff888008e04180 R11=000000000002b200 R12=00000000000000b2 R13=ffff888016e67660 R14=0000000000000000 R15=0000000000000075 RIP=ffffffff81269323 RFL=00000046 [---Z-P-] 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 00007f6538b43700 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=00007f8b4d61aa80 CR3=000000000e212000 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=2036323a38343a38312036312079614d XMM01=5d3030313234322e31352020205b203a XMM02=75636578652d7a7973203a6d6d6f4320 XMM03=20202020202020572020202020202020 XMM04=6e2d3263722d302e342e362020202020 XMM05=3a6465746e69615420302e726f747563 XMM06=32203a4449502031203a555043205d30 XMM07=6e72656b2072656c6c616b7a79732036 XMM08=7475636578652d7a7973223d6d6d6f63 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000000000034 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507685 RDI=ffffffff87f27c00 RBP=ffffffff87f27bc0 RSP=ffff8880159275f0 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000034 R11=0000000000000001 R12=0000000000000034 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 00005555563c9400 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=00007f4cbde776f4 CR3=000000001814c000 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