syzkaller login: [ 35.616203] sshd (219) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:21164' (ECDSA) to the list of known hosts. 2023/05/18 08:45:35 fuzzer started 2023/05/18 08:45:35 dialing manager at localhost:44319 2023/05/18 08:45:35 checking machine... 2023/05/18 08:45:35 checking revisions... [ 37.820784] kmemleak: Automatic memory scanning thread ended 2023/05/18 08:45:36 testing simple program... [ 37.894203] cgroup: Unknown subsys name 'net' [ 37.973619] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 51.223698] audit: type=1400 audit(1684399549.466:6): 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 [ 52.351611] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 52.354350] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 52.355613] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 52.358825] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 52.360616] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 52.362102] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 executing program [ 52.747995] ------------[ cut here ]------------ [ 52.748745] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 52.750929] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 52.752194] Modules linked in: [ 52.752689] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 52.757652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 52.758771] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 52.759512] 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 [ 52.761902] RSP: 0018:ffff88800e807c00 EFLAGS: 00010282 [ 52.762679] RAX: 0000000000000000 RBX: ffff88800d8d2040 RCX: 0000000000000000 [ 52.763657] RDX: ffff888019d39b40 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 52.764638] RBP: ffff88800d8d2054 R08: 0000000000000001 R09: 0000000000000000 [ 52.765604] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 52.766593] R13: ffffffff84e23fe0 R14: ffff88800d8d2048 R15: ffffffff84d74dc0 [ 52.767578] FS: 0000555556989400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 52.768688] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.769501] CR2: 00007ffae83546f4 CR3: 000000000e02a000 CR4: 0000000000350ee0 [ 52.770503] Call Trace: [ 52.770862] [ 52.771218] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 52.771891] ipv4_frags_init_net+0x269/0x440 [ 52.772533] ops_init+0xbb/0x6b0 [ 52.773022] setup_net+0x3d9/0x990 [ 52.773559] ? down_read_killable+0x1d7/0x4e0 [ 52.774225] ? __pfx_setup_net+0x10/0x10 [ 52.774795] ? copy_net_ns+0x17c/0x770 [ 52.775384] copy_net_ns+0x321/0x770 [ 52.775925] create_new_namespaces+0x3f6/0xb30 [ 52.776602] unshare_nsproxy_namespaces+0xc1/0x200 [ 52.777311] ksys_unshare+0x44d/0x8e0 [ 52.777852] ? __pfx_ksys_unshare+0x10/0x10 [ 52.778512] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 52.779326] __x64_sys_unshare+0x31/0x40 [ 52.779891] do_syscall_64+0x3f/0x90 [ 52.780447] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 52.781207] RIP: 0033:0x7f77103540d7 [ 52.781727] 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 [ 52.784166] RSP: 002b:00007ffc8c36f0e8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 52.785222] RAX: ffffffffffffffda RBX: 00007ffc8c36f728 RCX: 00007f77103540d7 [ 52.786223] RDX: 00007f77103be41f RSI: 00007ffc8c36f080 RDI: 0000000040000000 [ 52.787208] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffc8c36ee90 [ 52.788182] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f7710466bf0 [ 52.789158] R13: 00007ffc8c36f1c0 R14: 0000000000000000 R15: 00000000000000f8 [ 52.790177] [ 52.790512] irq event stamp: 7911 [ 52.790978] hardirqs last enabled at (7921): [] __up_console_sem+0x78/0x80 [ 52.792160] hardirqs last disabled at (7932): [] __up_console_sem+0x5d/0x80 [ 52.793340] softirqs last enabled at (7796): [] irq_exit_rcu+0x93/0xc0 [ 52.794497] softirqs last disabled at (7791): [] irq_exit_rcu+0x93/0xc0 [ 52.795636] ---[ end trace 0000000000000000 ]--- [ 52.802236] ------------[ cut here ]------------ [ 52.802882] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 52.804749] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 52.805946] Modules linked in: [ 52.806437] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 52.807734] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 52.808874] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 52.809624] 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 [ 52.812083] RSP: 0018:ffff88800e807c00 EFLAGS: 00010282 [ 52.812811] RAX: 0000000000000000 RBX: ffff88800dcf9640 RCX: 0000000000000000 [ 52.813801] RDX: ffff888019d39b40 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 52.814791] RBP: ffff88800dcf9654 R08: 0000000000000001 R09: 0000000000000000 [ 52.815794] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 52.816775] R13: ffffffff84e23fe0 R14: ffff88800dcf9648 R15: ffffffff84da7d60 [ 52.817766] FS: 0000555556989400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 52.818892] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.819722] CR2: 00007ffae83546f4 CR3: 000000000e02a000 CR4: 0000000000350ee0 [ 52.820724] Call Trace: [ 52.821119] [ 52.821457] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 52.822208] ipv6_frags_init_net+0x206/0x3c0 [ 52.822837] ops_init+0xbb/0x6b0 [ 52.823358] setup_net+0x3d9/0x990 [ 52.823860] ? down_read_killable+0x1d7/0x4e0 [ 52.824509] ? __pfx_setup_net+0x10/0x10 [ 52.825097] ? copy_net_ns+0x17c/0x770 [ 52.825655] copy_net_ns+0x321/0x770 [ 52.826219] create_new_namespaces+0x3f6/0xb30 [ 52.826860] unshare_nsproxy_namespaces+0xc1/0x200 [ 52.827560] ksys_unshare+0x44d/0x8e0 [ 52.828128] ? __pfx_ksys_unshare+0x10/0x10 [ 52.828730] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 52.829557] __x64_sys_unshare+0x31/0x40 [ 52.830168] do_syscall_64+0x3f/0x90 [ 52.830693] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 52.831428] RIP: 0033:0x7f77103540d7 [ 52.831939] 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 [ 52.834338] RSP: 002b:00007ffc8c36f0e8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 52.835358] RAX: ffffffffffffffda RBX: 00007ffc8c36f728 RCX: 00007f77103540d7 [ 52.836309] RDX: 00007f77103be41f RSI: 00007ffc8c36f080 RDI: 0000000040000000 [ 52.837255] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffc8c36ee90 [ 52.838222] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f7710466bf0 [ 52.839183] R13: 00007ffc8c36f1c0 R14: 0000000000000000 R15: 00000000000000f8 [ 52.840148] [ 52.840471] irq event stamp: 10013 [ 52.840928] hardirqs last enabled at (10023): [] __up_console_sem+0x78/0x80 [ 52.842081] hardirqs last disabled at (10034): [] __up_console_sem+0x5d/0x80 [ 52.843267] softirqs last enabled at (9504): [] irq_exit_rcu+0x93/0xc0 [ 52.844412] softirqs last disabled at (10055): [] irq_exit_rcu+0x93/0xc0 [ 52.845539] ---[ end trace 0000000000000000 ]--- [ 52.846935] ------------[ cut here ]------------ [ 52.847598] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 52.849574] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 52.850723] Modules linked in: [ 52.851180] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 52.852440] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 52.853557] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 52.854322] 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 [ 52.856740] RSP: 0018:ffff88800e807bf0 EFLAGS: 00010286 [ 52.857491] RAX: 0000000000000000 RBX: ffff88800dcf9c40 RCX: 0000000000000000 [ 52.858475] RDX: ffff888019d39b40 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 52.859445] RBP: ffff88800dcf9c54 R08: 0000000000000001 R09: 0000000000000000 [ 52.860428] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 52.861396] R13: ffffffff84e23fe0 R14: ffff88800dcf9c48 R15: ffffffff84db0aa0 [ 52.862392] FS: 0000555556989400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 52.863500] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.864311] CR2: 00007ffae83546f4 CR3: 000000000e02a000 CR4: 0000000000350ee0 [ 52.865293] Call Trace: [ 52.865651] [ 52.865982] nf_ct_net_init+0x224/0x3d0 [ 52.866610] ? __pfx_nf_ct_net_init+0x10/0x10 [ 52.867269] ops_init+0xbb/0x6b0 [ 52.867753] setup_net+0x3d9/0x990 [ 52.868293] ? down_read_killable+0x1d7/0x4e0 [ 52.868929] ? __pfx_setup_net+0x10/0x10 [ 52.869524] ? copy_net_ns+0x17c/0x770 [ 52.870112] copy_net_ns+0x321/0x770 [ 52.870663] create_new_namespaces+0x3f6/0xb30 [ 52.871344] unshare_nsproxy_namespaces+0xc1/0x200 [ 52.872023] ksys_unshare+0x44d/0x8e0 [ 52.872590] ? __pfx_ksys_unshare+0x10/0x10 [ 52.873220] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 52.873996] __x64_sys_unshare+0x31/0x40 [ 52.874609] do_syscall_64+0x3f/0x90 [ 52.875160] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 52.875870] RIP: 0033:0x7f77103540d7 [ 52.876412] 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 [ 52.878825] RSP: 002b:00007ffc8c36f0e8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 52.879867] RAX: ffffffffffffffda RBX: 00007ffc8c36f728 RCX: 00007f77103540d7 [ 52.880837] RDX: 00007f77103be41f RSI: 00007ffc8c36f080 RDI: 0000000040000000 [ 52.881806] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffc8c36ee90 [ 52.882796] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f7710466bf0 [ 52.883770] R13: 00007ffc8c36f1c0 R14: 0000000000000000 R15: 00000000000000f8 [ 52.884764] [ 52.885117] irq event stamp: 10747 [ 52.885598] hardirqs last enabled at (10757): [] __up_console_sem+0x78/0x80 [ 52.886775] hardirqs last disabled at (10768): [] __up_console_sem+0x5d/0x80 [ 52.887947] softirqs last enabled at (10060): [] irq_exit_rcu+0x93/0xc0 [ 52.889083] softirqs last disabled at (10055): [] irq_exit_rcu+0x93/0xc0 [ 52.890238] ---[ end trace 0000000000000000 ]--- [ 54.373583] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 56.422661] Bluetooth: hci0: command 0x041b tx timeout [ 58.469166] Bluetooth: hci0: command 0x040f tx timeout executing program [ 60.517722] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 08:45:49 Registers: info registers vcpu 0 RAX=0000000000027917 RBX=0000000000000000 RCX=ffffffff844d0a0e RDX=0000000000000000 RSI=0000000000000000 RDI=ffffffff81287415 RBP=dffffc0000000000 RSP=ffffffff85407e10 R8 =0000000000000001 R9 =ffffed100d9c69f8 R10=ffff88806ce34fc3 R11=0000000000000001 R12=ffffffff85d35a10 R13=1ffffffff0a80fc7 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 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=00007f95a53606f4 CR3=000000000e878000 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=2030353a35343a38302038312079614d XMM01=5d3932393035372e32352020205b203a XMM02=74656e20746120393532203a44495020 XMM03=735f74656e5f72657473696765722035 XMM04=7379735f74656e5f7265747369676572 XMM05=732f74656e20746120393532203a4449 XMM06=57205d3932393035372e32352020205b XMM07=79732030353a35343a38302038312079 XMM08=7475636578652d7a7973223d6d6d6f63 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 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=ffff88800e8075f0 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 0000555556989400 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=00007ffae83546f4 CR3=000000000e02a000 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