Debian GNU/Linux 11 syzkaller ttyS0 syzkaller login: [ 26.602254] sshd (217) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:61711' (ECDSA) to the list of known hosts. 2023/05/16 16:52:54 fuzzer started 2023/05/16 16:52:55 dialing manager at localhost:35573 2023/05/16 16:52:55 checking machine... 2023/05/16 16:52:55 checking revisions... [ 28.813749] kmemleak: Automatic memory scanning thread ended 2023/05/16 16:52:55 testing simple program... [ 28.890796] cgroup: Unknown subsys name 'net' [ 29.005636] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 41.284596] audit: type=1400 audit(1684255987.643:6): 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 [ 42.404691] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 42.406391] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 42.409471] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 42.412706] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 42.414232] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 42.417258] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 42.804715] ------------[ cut here ]------------ [ 42.805355] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 42.807286] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 42.808536] Modules linked in: [ 42.808953] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 42.813746] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 42.814870] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 42.815618] 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 [ 42.817808] RSP: 0018:ffff888017bf7c00 EFLAGS: 00010282 [ 42.818507] RAX: 0000000000000000 RBX: ffff88800e780c40 RCX: 0000000000000000 [ 42.819362] RDX: ffff88800ee8b680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 42.820268] RBP: ffff88800e780c54 R08: 0000000000000001 R09: 0000000000000000 [ 42.821164] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 42.822057] R13: ffffffff84e223a0 R14: ffff88800e780c48 R15: ffffffff84d73340 [ 42.822944] FS: 000055555630f400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 42.823939] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.824693] CR2: 00007fdb0a3fb6f4 CR3: 0000000020192000 CR4: 0000000000350ef0 [ 42.825574] Call Trace: [ 42.825907] [ 42.826200] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 42.826837] ipv4_frags_init_net+0x269/0x440 [ 42.827390] ops_init+0xbb/0x6b0 [ 42.827866] setup_net+0x3d9/0x990 [ 42.828318] ? down_read_killable+0x1d7/0x4e0 [ 42.828937] ? __pfx_setup_net+0x10/0x10 [ 42.829472] ? copy_net_ns+0x17c/0x770 [ 42.829983] copy_net_ns+0x321/0x770 [ 42.830490] create_new_namespaces+0x3f6/0xb30 [ 42.831075] unshare_nsproxy_namespaces+0xc1/0x200 [ 42.831715] ksys_unshare+0x44d/0x8e0 [ 42.832202] ? __pfx_ksys_unshare+0x10/0x10 [ 42.832784] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 42.833527] __x64_sys_unshare+0x31/0x40 [ 42.834039] do_syscall_64+0x3f/0x90 [ 42.834550] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 42.835189] RIP: 0033:0x7f6949bec0d7 [ 42.835687] 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 [ 42.837852] RSP: 002b:00007ffebf56ef38 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 42.838821] RAX: ffffffffffffffda RBX: 00007ffebf56f578 RCX: 00007f6949bec0d7 [ 42.839708] RDX: 00007f6949c5641f RSI: 00007ffebf56eed0 RDI: 0000000040000000 [ 42.840596] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffebf56ece0 [ 42.841475] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f6949cfebf0 [ 42.842319] R13: 00007ffebf56f010 R14: 0000000000000000 R15: 00000000000000f8 [ 42.843231] [ 42.843559] irq event stamp: 8235 [ 42.843981] hardirqs last enabled at (8245): [] __up_console_sem+0x78/0x80 [ 42.845044] hardirqs last disabled at (8256): [] __up_console_sem+0x5d/0x80 [ 42.846105] softirqs last enabled at (7794): [] irq_exit_rcu+0x93/0xc0 [ 42.847133] softirqs last disabled at (7763): [] irq_exit_rcu+0x93/0xc0 [ 42.848153] ---[ end trace 0000000000000000 ]--- [ 42.854468] ------------[ cut here ]------------ [ 42.855066] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 42.856867] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 42.857921] Modules linked in: [ 42.858335] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 42.859493] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 42.860511] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 42.861163] 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 [ 42.863364] RSP: 0018:ffff888017bf7c00 EFLAGS: 00010282 [ 42.864050] RAX: 0000000000000000 RBX: ffff88800ea47240 RCX: 0000000000000000 [ 42.864960] RDX: ffff88800ee8b680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 42.865863] RBP: ffff88800ea47254 R08: 0000000000000001 R09: 0000000000000000 [ 42.866766] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 42.867670] R13: ffffffff84e223a0 R14: ffff88800ea47248 R15: ffffffff84da62e0 [ 42.868590] FS: 000055555630f400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 42.869590] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.870298] CR2: 00007fdb0a3fb6f4 CR3: 0000000020192000 CR4: 0000000000350ef0 [ 42.871196] Call Trace: [ 42.871561] [ 42.871863] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 42.872512] ipv6_frags_init_net+0x206/0x3c0 [ 42.873073] ops_init+0xbb/0x6b0 [ 42.873554] setup_net+0x3d9/0x990 [ 42.874008] ? down_read_killable+0x1d7/0x4e0 [ 42.874609] ? __pfx_setup_net+0x10/0x10 [ 42.875122] ? copy_net_ns+0x17c/0x770 [ 42.875662] copy_net_ns+0x321/0x770 [ 42.876141] create_new_namespaces+0x3f6/0xb30 [ 42.876777] unshare_nsproxy_namespaces+0xc1/0x200 [ 42.877389] ksys_unshare+0x44d/0x8e0 [ 42.877917] ? __pfx_ksys_unshare+0x10/0x10 [ 42.878495] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 42.879206] __x64_sys_unshare+0x31/0x40 [ 42.879757] do_syscall_64+0x3f/0x90 [ 42.880231] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 42.880912] RIP: 0033:0x7f6949bec0d7 [ 42.881376] 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 [ 42.883520] RSP: 002b:00007ffebf56ef38 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 42.884484] RAX: ffffffffffffffda RBX: 00007ffebf56f578 RCX: 00007f6949bec0d7 [ 42.885352] RDX: 00007f6949c5641f RSI: 00007ffebf56eed0 RDI: 0000000040000000 [ 42.886276] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffebf56ece0 [ 42.887189] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f6949cfebf0 [ 42.888100] R13: 00007ffebf56f010 R14: 0000000000000000 R15: 00000000000000f8 [ 42.889042] [ 42.889346] irq event stamp: 10337 [ 42.889826] hardirqs last enabled at (10349): [] __up_console_sem+0x78/0x80 [ 42.890922] hardirqs last disabled at (10360): [] __up_console_sem+0x5d/0x80 [ 42.892016] softirqs last enabled at (9836): [] irq_exit_rcu+0x93/0xc0 [ 42.893067] softirqs last disabled at (9813): [] irq_exit_rcu+0x93/0xc0 [ 42.894150] ---[ end trace 0000000000000000 ]--- [ 42.895667] ------------[ cut here ]------------ [ 42.896249] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 42.898137] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 42.899209] Modules linked in: [ 42.899663] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 42.900845] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 42.901872] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 42.902561] 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 [ 42.904757] RSP: 0018:ffff888017bf7bf0 EFLAGS: 00010286 [ 42.905412] RAX: 0000000000000000 RBX: ffff88800e28f440 RCX: 0000000000000000 [ 42.906314] RDX: ffff88800ee8b680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 42.907208] RBP: ffff88800e28f454 R08: 0000000000000001 R09: 0000000000000000 [ 42.908104] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 42.909006] R13: ffffffff84e223a0 R14: ffff88800e28f448 R15: ffffffff84daf020 [ 42.909933] FS: 000055555630f400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 42.910957] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.911723] CR2: 00007fdb0a3fb6f4 CR3: 0000000020192000 CR4: 0000000000350ef0 [ 42.912640] Call Trace: [ 42.912976] [ 42.913277] nf_ct_net_init+0x224/0x3d0 [ 42.913839] ? __pfx_nf_ct_net_init+0x10/0x10 [ 42.914412] ops_init+0xbb/0x6b0 [ 42.914895] setup_net+0x3d9/0x990 [ 42.915348] ? down_read_killable+0x1d7/0x4e0 [ 42.915946] ? __pfx_setup_net+0x10/0x10 [ 42.916514] ? copy_net_ns+0x17c/0x770 [ 42.917024] copy_net_ns+0x321/0x770 [ 42.917551] create_new_namespaces+0x3f6/0xb30 [ 42.918147] unshare_nsproxy_namespaces+0xc1/0x200 [ 42.918815] ksys_unshare+0x44d/0x8e0 [ 42.919312] ? __pfx_ksys_unshare+0x10/0x10 [ 42.919906] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 42.920669] __x64_sys_unshare+0x31/0x40 [ 42.921193] do_syscall_64+0x3f/0x90 [ 42.921716] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 42.922357] RIP: 0033:0x7f6949bec0d7 [ 42.922861] 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 [ 42.925050] RSP: 002b:00007ffebf56ef38 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 42.926021] RAX: ffffffffffffffda RBX: 00007ffebf56f578 RCX: 00007f6949bec0d7 [ 42.926920] RDX: 00007f6949c5641f RSI: 00007ffebf56eed0 RDI: 0000000040000000 [ 42.927813] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffebf56ece0 [ 42.928738] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f6949cfebf0 [ 42.929642] R13: 00007ffebf56f010 R14: 0000000000000000 R15: 00000000000000f8 [ 42.930556] [ 42.930857] irq event stamp: 11131 [ 42.931296] hardirqs last enabled at (11141): [] __up_console_sem+0x78/0x80 [ 42.932370] hardirqs last disabled at (11152): [] __up_console_sem+0x5d/0x80 [ 42.933477] softirqs last enabled at (10816): [] irq_exit_rcu+0x93/0xc0 [ 42.934530] softirqs last disabled at (10811): [] irq_exit_rcu+0x93/0xc0 [ 42.935575] ---[ end trace 0000000000000000 ]--- executing program [ 44.493192] Bluetooth: hci0: command 0x0409 tx timeout [ 46.540703] Bluetooth: hci0: command 0x041b tx timeout executing program [ 48.588632] Bluetooth: hci0: command 0x040f tx timeout executing program [ 50.636560] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 16:53:09 Registers: info registers vcpu 0 RAX=000000000000003a RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507685 RDI=ffffffff87f27c00 RBP=ffffffff87f27bc0 RSP=ffff888017bf75f0 R8 =0000000000000001 R9 =000000000000000a R10=000000000000003a R11=0000000000000001 R12=000000000000003a 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 000055555630f400 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=00007fdb0a3fb6f4 CR3=0000000020192000 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=0000000000028e27 RBX=0000000000000001 RCX=ffffffff844c4a0e RDX=0000000000000000 RSI=0000000000000000 RDI=ffffffff81288625 RBP=dffffc0000000000 RSP=ffff888008dcfe68 R8 =0000000000000001 R9 =ffffed100d9e69f8 R10=ffff88806cf34fc3 R11=0000000000000001 R12=ffffffff85d34a10 R13=1ffff110011b9fd2 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 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=00007faea40370f8 CR3=000000000c3f8000 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=2039303a33353a36312036312079614d XMM01=5d3638323730382e32342020205b203a XMM02=74656e20746120393532203a44495020 XMM03=735f74656e5f72657473696765722035 XMM04=7379735f74656e5f7265747369676572 XMM05=732f74656e20746120393532203a4449 XMM06=57205d3638323730382e32342020205b XMM07=79732039303a33353a36312036312079 XMM08=7475636578652d7a7973223d6d6d6f63 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000