Debian GNU/Linux 11 syzkaller ttyS0 syzkaller login: [ 36.182182] sshd (217) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:18215' (ECDSA) to the list of known hosts. 2023/05/17 12:16:22 fuzzer started 2023/05/17 12:16:22 dialing manager at localhost:44319 2023/05/17 12:16:22 checking machine... 2023/05/17 12:16:22 checking revisions... [ 38.294317] kmemleak: Automatic memory scanning thread ended 2023/05/17 12:16:22 testing simple program... [ 38.363200] cgroup: Unknown subsys name 'net' [ 38.461464] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 51.660778] audit: type=1400 audit(1684325796.203:6): 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 [ 52.830980] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 52.832707] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 52.835100] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 52.839710] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 52.842393] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 52.845049] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 executing program [ 53.259518] ------------[ cut here ]------------ [ 53.260447] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 53.262362] WARNING: CPU: 1 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 53.263922] Modules linked in: [ 53.264428] CPU: 1 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 53.266481] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 53.269770] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 53.270423] 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 [ 53.272627] RSP: 0018:ffff88800fcf7c00 EFLAGS: 00010282 [ 53.273273] RAX: 0000000000000000 RBX: ffff88800fc82c40 RCX: 0000000000000000 [ 53.274148] RDX: ffff888009afd1c0 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 53.275024] RBP: ffff88800fc82c54 R08: 0000000000000001 R09: 0000000000000000 [ 53.275884] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 53.276757] R13: ffffffff84e23fe0 R14: ffff88800fc82c48 R15: ffffffff84d74dc0 [ 53.277634] FS: 0000555555ac0400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 53.278602] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.279300] CR2: 00007f11c18d26f4 CR3: 00000000200ee000 CR4: 0000000000350ee0 [ 53.280181] Call Trace: [ 53.280501] [ 53.280826] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 53.281429] ipv4_frags_init_net+0x269/0x440 [ 53.281999] ops_init+0xbb/0x6b0 [ 53.282442] setup_net+0x3d9/0x990 [ 53.282919] ? down_read_killable+0x1d7/0x4e0 [ 53.283513] ? __pfx_setup_net+0x10/0x10 [ 53.284054] ? copy_net_ns+0x17c/0x770 [ 53.284574] copy_net_ns+0x321/0x770 [ 53.285066] create_new_namespaces+0x3f6/0xb30 [ 53.285688] unshare_nsproxy_namespaces+0xc1/0x200 [ 53.286292] ksys_unshare+0x44d/0x8e0 [ 53.286798] ? __pfx_ksys_unshare+0x10/0x10 [ 53.287345] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 53.288113] __x64_sys_unshare+0x31/0x40 [ 53.288661] do_syscall_64+0x3f/0x90 [ 53.289245] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 53.290087] RIP: 0033:0x7f5a2f37a0d7 [ 53.290682] 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 [ 53.293093] RSP: 002b:00007ffcf1046398 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 53.294237] RAX: ffffffffffffffda RBX: 00007ffcf10469d8 RCX: 00007f5a2f37a0d7 [ 53.295164] RDX: 00007f5a2f3e441f RSI: 00007ffcf1046330 RDI: 0000000040000000 [ 53.296059] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffcf1046140 [ 53.296952] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f5a2f48cbf0 [ 53.298024] R13: 00007ffcf1046470 R14: 0000000000000000 R15: 00000000000000f8 [ 53.299175] [ 53.299584] irq event stamp: 8755 [ 53.300122] hardirqs last enabled at (8765): [] __up_console_sem+0x78/0x80 [ 53.301358] hardirqs last disabled at (8776): [] __up_console_sem+0x5d/0x80 [ 53.302512] softirqs last enabled at (7918): [] netlink_insert+0x187/0x1820 [ 53.303669] softirqs last disabled at (7916): [] release_sock+0x1f/0x1b0 [ 53.304764] ---[ end trace 0000000000000000 ]--- [ 53.310896] ------------[ cut here ]------------ [ 53.311578] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 53.313638] WARNING: CPU: 1 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 53.314746] Modules linked in: [ 53.315174] CPU: 1 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 53.316370] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 53.317423] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 53.318140] 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 [ 53.320430] RSP: 0018:ffff88800fcf7c00 EFLAGS: 00010282 [ 53.321141] RAX: 0000000000000000 RBX: ffff88800d69de40 RCX: 0000000000000000 [ 53.322043] RDX: ffff888009afd1c0 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 53.322961] RBP: ffff88800d69de54 R08: 0000000000000001 R09: 0000000000000000 [ 53.323872] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 53.324785] R13: ffffffff84e23fe0 R14: ffff88800d69de48 R15: ffffffff84da7d60 [ 53.325696] FS: 0000555555ac0400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 53.326714] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.327471] CR2: 00007f11c18d26f4 CR3: 00000000200ee000 CR4: 0000000000350ee0 [ 53.328387] Call Trace: [ 53.328761] [ 53.329072] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 53.329726] ipv6_frags_init_net+0x206/0x3c0 [ 53.330296] ops_init+0xbb/0x6b0 [ 53.330790] setup_net+0x3d9/0x990 [ 53.331267] ? down_read_killable+0x1d7/0x4e0 [ 53.331886] ? __pfx_setup_net+0x10/0x10 [ 53.332405] ? copy_net_ns+0x17c/0x770 [ 53.332968] copy_net_ns+0x321/0x770 [ 53.333463] create_new_namespaces+0x3f6/0xb30 [ 53.334101] unshare_nsproxy_namespaces+0xc1/0x200 [ 53.334759] ksys_unshare+0x44d/0x8e0 [ 53.335280] ? __pfx_ksys_unshare+0x10/0x10 [ 53.335888] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 53.336650] __x64_sys_unshare+0x31/0x40 [ 53.337190] do_syscall_64+0x3f/0x90 [ 53.337715] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 53.338366] RIP: 0033:0x7f5a2f37a0d7 [ 53.338879] 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 [ 53.341087] RSP: 002b:00007ffcf1046398 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 53.342069] RAX: ffffffffffffffda RBX: 00007ffcf10469d8 RCX: 00007f5a2f37a0d7 [ 53.342983] RDX: 00007f5a2f3e441f RSI: 00007ffcf1046330 RDI: 0000000040000000 [ 53.343927] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffcf1046140 [ 53.344830] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f5a2f48cbf0 [ 53.345738] R13: 00007ffcf1046470 R14: 0000000000000000 R15: 00000000000000f8 [ 53.346657] [ 53.346970] irq event stamp: 10403 [ 53.347430] hardirqs last enabled at (10413): [] __up_console_sem+0x78/0x80 [ 53.348515] hardirqs last disabled at (10424): [] __up_console_sem+0x5d/0x80 [ 53.349632] softirqs last enabled at (9500): [] irq_exit_rcu+0x93/0xc0 [ 53.350671] softirqs last disabled at (9481): [] irq_exit_rcu+0x93/0xc0 [ 53.351725] ---[ end trace 0000000000000000 ]--- [ 53.353144] ------------[ cut here ]------------ [ 53.353905] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 53.355901] WARNING: CPU: 1 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 53.356979] Modules linked in: [ 53.357398] CPU: 1 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 53.358582] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 53.359637] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 53.360297] 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 [ 53.362497] RSP: 0018:ffff88800fcf7bf0 EFLAGS: 00010286 [ 53.363222] RAX: 0000000000000000 RBX: ffff88800d69c440 RCX: 0000000000000000 [ 53.364142] RDX: ffff888009afd1c0 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 53.365057] RBP: ffff88800d69c454 R08: 0000000000000001 R09: 0000000000000000 [ 53.365966] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 53.366872] R13: ffffffff84e23fe0 R14: ffff88800d69c448 R15: ffffffff84db0aa0 [ 53.367795] FS: 0000555555ac0400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 53.368821] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.369539] CR2: 00007f11c18d26f4 CR3: 00000000200ee000 CR4: 0000000000350ee0 [ 53.370461] Call Trace: [ 53.370838] [ 53.371165] nf_ct_net_init+0x224/0x3d0 [ 53.371726] ? __pfx_nf_ct_net_init+0x10/0x10 [ 53.372316] ops_init+0xbb/0x6b0 [ 53.372810] setup_net+0x3d9/0x990 [ 53.373293] ? down_read_killable+0x1d7/0x4e0 [ 53.373917] ? __pfx_setup_net+0x10/0x10 [ 53.374447] ? copy_net_ns+0x17c/0x770 [ 53.375030] copy_net_ns+0x321/0x770 [ 53.375537] create_new_namespaces+0x3f6/0xb30 [ 53.376184] unshare_nsproxy_namespaces+0xc1/0x200 [ 53.376846] ksys_unshare+0x44d/0x8e0 [ 53.377351] ? __pfx_ksys_unshare+0x10/0x10 [ 53.377952] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 53.378727] __x64_sys_unshare+0x31/0x40 [ 53.379276] do_syscall_64+0x3f/0x90 [ 53.379813] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 53.380485] RIP: 0033:0x7f5a2f37a0d7 [ 53.380989] 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 [ 53.383230] RSP: 002b:00007ffcf1046398 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 53.384209] RAX: ffffffffffffffda RBX: 00007ffcf10469d8 RCX: 00007f5a2f37a0d7 [ 53.385117] RDX: 00007f5a2f3e441f RSI: 00007ffcf1046330 RDI: 0000000040000000 [ 53.386035] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffcf1046140 [ 53.386939] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f5a2f48cbf0 [ 53.387886] R13: 00007ffcf1046470 R14: 0000000000000000 R15: 00000000000000f8 [ 53.388820] [ 53.389135] irq event stamp: 11313 [ 53.389610] hardirqs last enabled at (11325): [] __up_console_sem+0x78/0x80 [ 53.390706] hardirqs last disabled at (11336): [] __up_console_sem+0x5d/0x80 [ 53.391811] softirqs last enabled at (11008): [] irq_exit_rcu+0x93/0xc0 [ 53.392876] softirqs last disabled at (11003): [] irq_exit_rcu+0x93/0xc0 [ 53.393920] ---[ end trace 0000000000000000 ]--- [ 54.916097] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 56.965122] Bluetooth: hci0: command 0x041b tx timeout [ 59.011658] Bluetooth: hci0: command 0x040f tx timeout executing program [ 61.059727] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 12:16:37 Registers: info registers vcpu 0 RAX=0000000000000000 RBX=dffffc0000000000 RCX=0000000000000001 RDX=0000000000000000 RSI=00000000ffffffff RDI=ffff888016bedb40 RBP=ffff888019612a48 RSP=ffff888016cbf858 R8 =0000000000000000 R9 =0000000000000000 R10=0000000000000000 R11=0000000000000001 R12=ffff888019612a48 R13=ffffffff818cfcd9 R14=ffff888016bed1c0 R15=ffff8880102727a0 RIP=ffffffff8122d696 RFL=00000282 [--S----] 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 00007f9a3e1da900 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=00007f9a3d63ade0 CR3=000000000ef50000 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=ffffffffffffffffffffffffffffffff XMM01=30306234386136303638616663356134 XMM02=38303062343861363036386166633561 XMM03=2f6c616e72756f6a2f676f6c2f6e7572 XMM04=1ed22a553b64f1b8000000000013c760 XMM05=d3fdd5f48436fbd700000000000aead0 XMM06=60c863dbbb63d86100000000000ae988 XMM07=00000000000000000000000000000000 XMM08=44495f474f4c5359530069253d595449 XMM09=00000000000000000000000000000000 XMM10=00002020202020200020202020200000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000000000020 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507f85 RDI=ffffffff87f2dc00 RBP=ffffffff87f2dbc0 RSP=ffff88800fcf7618 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000020 R11=0000000000000001 R12=0000000000000020 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 0000555555ac0400 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=00007f11c18d26f4 CR3=00000000200ee000 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