syzkaller login: [ 37.495863] sshd (209) used greatest stack depth: 24160 bytes left Warning: Permanently added '[localhost]:40084' (ECDSA) to the list of known hosts. 2023/05/17 03:43:34 fuzzer started 2023/05/17 03:43:35 dialing manager at localhost:35573 2023/05/17 03:43:35 checking machine... 2023/05/17 03:43:35 checking revisions... [ 42.472282] kmemleak: Automatic memory scanning thread ended 2023/05/17 03:43:35 testing simple program... [ 42.537153] cgroup: Unknown subsys name 'net' [ 42.605645] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program [ 54.241192] audit: type=1400 audit(1684295027.010:6): 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 executing program [ 55.320210] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 55.322730] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 55.324037] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 55.327681] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 55.329428] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 55.330729] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 55.713783] ------------[ cut here ]------------ [ 55.714479] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 55.716469] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 55.717555] Modules linked in: [ 55.717962] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 55.722963] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 55.724127] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 55.724927] 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 [ 55.727330] RSP: 0018:ffff88801f557c00 EFLAGS: 00010282 [ 55.728121] RAX: 0000000000000000 RBX: ffff888016494440 RCX: 0000000000000000 [ 55.729175] RDX: ffff88801659b680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 55.730207] RBP: ffff888016494454 R08: 0000000000000001 R09: 0000000000000000 [ 55.731243] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 55.732295] R13: ffffffff84e223a0 R14: ffff888016494448 R15: ffffffff84d73340 [ 55.733345] FS: 00005555558b6400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 55.734610] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.735361] CR2: 00007ff224f4c6f4 CR3: 000000000f60c000 CR4: 0000000000350ee0 [ 55.736552] Call Trace: [ 55.736914] [ 55.737221] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 55.738017] ipv4_frags_init_net+0x269/0x440 [ 55.738798] ops_init+0xbb/0x6b0 [ 55.739270] setup_net+0x3d9/0x990 [ 55.739846] ? down_read_killable+0x1d7/0x4e0 [ 55.740481] ? __pfx_setup_net+0x10/0x10 [ 55.741040] ? copy_net_ns+0x17c/0x770 [ 55.741606] copy_net_ns+0x321/0x770 [ 55.742112] create_new_namespaces+0x3f6/0xb30 [ 55.742748] unshare_nsproxy_namespaces+0xc1/0x200 [ 55.743428] ksys_unshare+0x44d/0x8e0 [ 55.743942] ? __pfx_ksys_unshare+0x10/0x10 [ 55.744546] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 55.745308] __x64_sys_unshare+0x31/0x40 [ 55.745889] do_syscall_64+0x3f/0x90 [ 55.746410] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 55.747106] RIP: 0033:0x7f4e38af70d7 [ 55.747627] 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 [ 55.749946] RSP: 002b:00007ffec68432a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 55.750972] RAX: ffffffffffffffda RBX: 00007ffec68438e8 RCX: 00007f4e38af70d7 [ 55.751900] RDX: 00007f4e38b6141f RSI: 00007ffec6843240 RDI: 0000000040000000 [ 55.752850] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffec6843050 [ 55.753790] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f4e38c09bf0 [ 55.754727] R13: 00007ffec6843380 R14: 0000000000000000 R15: 00000000000000f8 [ 55.755687] [ 55.756007] irq event stamp: 8903 [ 55.756484] hardirqs last enabled at (8915): [] __up_console_sem+0x78/0x80 [ 55.757643] hardirqs last disabled at (8926): [] __up_console_sem+0x5d/0x80 [ 55.758760] softirqs last enabled at (8650): [] irq_exit_rcu+0x93/0xc0 [ 55.759850] softirqs last disabled at (8617): [] irq_exit_rcu+0x93/0xc0 [ 55.760962] ---[ end trace 0000000000000000 ]--- [ 55.766688] ------------[ cut here ]------------ [ 55.767334] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 55.769194] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 55.770388] Modules linked in: [ 55.770826] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 55.772110] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 55.773261] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 55.774005] 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 [ 55.776272] RSP: 0018:ffff88801f557c00 EFLAGS: 00010282 [ 55.776966] RAX: 0000000000000000 RBX: ffff88800ebbb040 RCX: 0000000000000000 [ 55.777846] RDX: ffff88801659b680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 55.778739] RBP: ffff88800ebbb054 R08: 0000000000000001 R09: 0000000000000000 [ 55.779626] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 55.780516] R13: ffffffff84e223a0 R14: ffff88800ebbb048 R15: ffffffff84da62e0 [ 55.781452] FS: 00005555558b6400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 55.782449] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.783162] CR2: 00007ff224f4c6f4 CR3: 000000000f60c000 CR4: 0000000000350ee0 [ 55.784054] Call Trace: [ 55.784405] [ 55.784700] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 55.785325] ipv6_frags_init_net+0x206/0x3c0 [ 55.785916] ops_init+0xbb/0x6b0 [ 55.786358] setup_net+0x3d9/0x990 [ 55.786838] ? down_read_killable+0x1d7/0x4e0 [ 55.787432] ? __pfx_setup_net+0x10/0x10 [ 55.787940] ? copy_net_ns+0x17c/0x770 [ 55.788470] copy_net_ns+0x321/0x770 [ 55.788954] create_new_namespaces+0x3f6/0xb30 [ 55.789571] unshare_nsproxy_namespaces+0xc1/0x200 [ 55.790185] ksys_unshare+0x44d/0x8e0 [ 55.790703] ? __pfx_ksys_unshare+0x10/0x10 [ 55.791246] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 55.791980] __x64_sys_unshare+0x31/0x40 [ 55.792520] do_syscall_64+0x3f/0x90 [ 55.793003] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 55.793676] RIP: 0033:0x7f4e38af70d7 [ 55.794143] 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 [ 55.796297] RSP: 002b:00007ffec68432a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 55.797264] RAX: ffffffffffffffda RBX: 00007ffec68438e8 RCX: 00007f4e38af70d7 [ 55.798163] RDX: 00007f4e38b6141f RSI: 00007ffec6843240 RDI: 0000000040000000 [ 55.799039] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffec6843050 [ 55.799917] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f4e38c09bf0 [ 55.800799] R13: 00007ffec6843380 R14: 0000000000000000 R15: 00000000000000f8 [ 55.801711] [ 55.802010] irq event stamp: 10735 [ 55.802481] hardirqs last enabled at (10747): [] __up_console_sem+0x78/0x80 [ 55.803609] hardirqs last disabled at (10758): [] __up_console_sem+0x5d/0x80 [ 55.804734] softirqs last enabled at (10230): [] irq_exit_rcu+0x93/0xc0 [ 55.805841] softirqs last disabled at (10205): [] irq_exit_rcu+0x93/0xc0 [ 55.806943] ---[ end trace 0000000000000000 ]--- [ 55.808325] ------------[ cut here ]------------ [ 55.808993] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 55.810945] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 55.812054] Modules linked in: [ 55.812501] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 55.813728] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 55.814796] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 55.815490] 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 [ 55.817793] RSP: 0018:ffff88801f557bf0 EFLAGS: 00010286 [ 55.818501] RAX: 0000000000000000 RBX: ffff88800ebbaa40 RCX: 0000000000000000 [ 55.819445] RDX: ffff88801659b680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 55.820339] RBP: ffff88800ebbaa54 R08: 0000000000000001 R09: 0000000000000000 [ 55.821283] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 55.822212] R13: ffffffff84e223a0 R14: ffff88800ebbaa48 R15: ffffffff84daf020 [ 55.823141] FS: 00005555558b6400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 55.824197] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.824993] CR2: 00007ff224f4c6f4 CR3: 000000000f60c000 CR4: 0000000000350ee0 [ 55.825943] Call Trace: [ 55.826283] [ 55.826624] nf_ct_net_init+0x224/0x3d0 [ 55.827161] ? __pfx_nf_ct_net_init+0x10/0x10 [ 55.827792] ops_init+0xbb/0x6b0 [ 55.828261] setup_net+0x3d9/0x990 [ 55.828758] ? down_read_killable+0x1d7/0x4e0 [ 55.829358] ? __pfx_setup_net+0x10/0x10 [ 55.829914] ? copy_net_ns+0x17c/0x770 [ 55.830474] copy_net_ns+0x321/0x770 [ 55.830972] create_new_namespaces+0x3f6/0xb30 [ 55.831615] unshare_nsproxy_namespaces+0xc1/0x200 [ 55.832253] ksys_unshare+0x44d/0x8e0 [ 55.832792] ? __pfx_ksys_unshare+0x10/0x10 [ 55.833441] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 55.834207] __x64_sys_unshare+0x31/0x40 [ 55.834788] do_syscall_64+0x3f/0x90 [ 55.835301] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 55.836019] RIP: 0033:0x7f4e38af70d7 [ 55.836531] 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 [ 55.838827] RSP: 002b:00007ffec68432a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 55.839833] RAX: ffffffffffffffda RBX: 00007ffec68438e8 RCX: 00007f4e38af70d7 [ 55.840759] RDX: 00007f4e38b6141f RSI: 00007ffec6843240 RDI: 0000000040000000 [ 55.841711] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffec6843050 [ 55.842642] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f4e38c09bf0 [ 55.843574] R13: 00007ffec6843380 R14: 0000000000000000 R15: 00000000000000f8 [ 55.844544] [ 55.844879] irq event stamp: 11581 [ 55.845336] hardirqs last enabled at (11591): [] __up_console_sem+0x78/0x80 [ 55.846502] hardirqs last disabled at (11604): [] __up_console_sem+0x5d/0x80 [ 55.847639] softirqs last enabled at (11264): [] irq_exit_rcu+0x93/0xc0 [ 55.848721] softirqs last disabled at (11259): [] irq_exit_rcu+0x93/0xc0 [ 55.849829] ---[ end trace 0000000000000000 ]--- executing program [ 57.401056] Bluetooth: hci0: command 0x0409 tx timeout [ 59.448428] Bluetooth: hci0: command 0x041b tx timeout executing program [ 61.496506] Bluetooth: hci0: command 0x040f tx timeout executing program [ 63.544430] Bluetooth: hci0: command 0x0419 tx timeout VM DIAGNOSIS: 03:43:47 Registers: info registers vcpu 0 RAX=0000000000029b33 RBX=0000000000000000 RCX=ffffffff844c4a0e RDX=0000000000000000 RSI=0000000000000000 RDI=ffffffff81288625 RBP=dffffc0000000000 RSP=ffffffff85407e10 R8 =0000000000000001 R9 =ffffed100d9c69f8 R10=ffff88806ce34fc3 R11=0000000000000001 R12=ffffffff85d34a10 R13=1ffffffff0a80fc7 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 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=00007f7bc0c6f070 CR3=000000000951c000 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=2038343a33343a33302037312079614d XMM01=5d3936343631372e35352020205b203a XMM02=74656e20746120393532203a44495020 XMM03=735f74656e5f72657473696765722035 XMM04=7379735f74656e5f7265747369676572 XMM05=732f74656e20746120393532203a4449 XMM06=57205d3936343631372e35352020205b XMM07=79732038343a33343a33302037312079 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=ffffffff82507685 RDI=ffffffff87f27c00 RBP=ffffffff87f27bc0 RSP=ffff88801f5575f0 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000020 R11=0000000000000001 R12=0000000000000020 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 00005555558b6400 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=00007ff224f4c6f4 CR3=000000000f60c000 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