syzkaller login: [ 50.548343] sshd (220) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:38780' (ECDSA) to the list of known hosts. 2023/05/16 19:20:22 fuzzer started 2023/05/16 19:20:23 dialing manager at localhost:35573 2023/05/16 19:20:23 checking machine... 2023/05/16 19:20:23 checking revisions... [ 52.676067] kmemleak: Automatic memory scanning thread ended 2023/05/16 19:20:23 testing simple program... [ 52.755863] cgroup: Unknown subsys name 'net' [ 52.845574] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 64.724167] audit: type=1400 audit(1684264835.268:6): avc: denied { execmem } for pid=259 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 65.843910] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 65.846081] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 65.849068] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 65.852605] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 65.855088] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 65.857374] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 66.248250] ------------[ cut here ]------------ [ 66.248889] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 66.250896] WARNING: CPU: 1 PID: 260 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 66.252085] Modules linked in: [ 66.252504] CPU: 1 PID: 260 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 66.255869] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 66.258416] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 66.259270] 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 [ 66.261593] RSP: 0018:ffff888019687c00 EFLAGS: 00010282 [ 66.262386] RAX: 0000000000000000 RBX: ffff88800dc66040 RCX: 0000000000000000 [ 66.263297] RDX: ffff888019499b40 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 66.264185] RBP: ffff88800dc66054 R08: 0000000000000001 R09: 0000000000000000 [ 66.265072] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 66.265924] R13: ffffffff84e223a0 R14: ffff88800dc66048 R15: ffffffff84d73340 [ 66.266850] FS: 0000555555762400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 66.267850] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 66.268623] CR2: 00007f29bfd5d6f4 CR3: 000000001a4ac000 CR4: 0000000000350ee0 [ 66.269509] Call Trace: [ 66.269832] [ 66.270164] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 66.270768] ipv4_frags_init_net+0x269/0x440 [ 66.271361] ops_init+0xbb/0x6b0 [ 66.271809] setup_net+0x3d9/0x990 [ 66.272288] ? down_read_killable+0x1d7/0x4e0 [ 66.272855] ? __pfx_setup_net+0x10/0x10 [ 66.273392] ? copy_net_ns+0x17c/0x770 [ 66.273892] copy_net_ns+0x321/0x770 [ 66.274398] create_new_namespaces+0x3f6/0xb30 [ 66.275029] unshare_nsproxy_namespaces+0xc1/0x200 [ 66.275636] ksys_unshare+0x44d/0x8e0 [ 66.276157] ? __pfx_ksys_unshare+0x10/0x10 [ 66.276722] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 66.277463] __x64_sys_unshare+0x31/0x40 [ 66.278021] do_syscall_64+0x3f/0x90 [ 66.278520] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 66.279311] RIP: 0033:0x7f579ea290d7 [ 66.279771] 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 [ 66.281958] RSP: 002b:00007ffcf6c32538 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 66.282913] RAX: ffffffffffffffda RBX: 00007ffcf6c32b78 RCX: 00007f579ea290d7 [ 66.283817] RDX: 00007f579ea9341f RSI: 00007ffcf6c324d0 RDI: 0000000040000000 [ 66.284712] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffcf6c322e0 [ 66.285608] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f579eb3bbf0 [ 66.286502] R13: 00007ffcf6c32610 R14: 0000000000000000 R15: 00000000000000f8 [ 66.287456] [ 66.287767] irq event stamp: 7679 [ 66.288232] hardirqs last enabled at (7691): [] __up_console_sem+0x78/0x80 [ 66.289296] hardirqs last disabled at (7702): [] __up_console_sem+0x5d/0x80 [ 66.290363] softirqs last enabled at (7270): [] irq_exit_rcu+0x93/0xc0 [ 66.291424] softirqs last disabled at (7235): [] irq_exit_rcu+0x93/0xc0 [ 66.292489] ---[ end trace 0000000000000000 ]--- [ 66.297424] ------------[ cut here ]------------ [ 66.298079] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 66.299825] WARNING: CPU: 1 PID: 260 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 66.300997] Modules linked in: [ 66.301438] CPU: 1 PID: 260 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 66.302693] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 66.303805] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 66.304536] 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 [ 66.306899] RSP: 0018:ffff888019687c00 EFLAGS: 00010282 [ 66.307637] RAX: 0000000000000000 RBX: ffff888008eda240 RCX: 0000000000000000 [ 66.308600] RDX: ffff888019499b40 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 66.309574] RBP: ffff888008eda254 R08: 0000000000000001 R09: 0000000000000000 [ 66.310531] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 66.311496] R13: ffffffff84e223a0 R14: ffff888008eda248 R15: ffffffff84da62e0 [ 66.312462] FS: 0000555555762400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 66.313543] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 66.314343] CR2: 00007f29bfd5d6f4 CR3: 000000001a4ac000 CR4: 0000000000350ee0 [ 66.315330] Call Trace: [ 66.315683] [ 66.316034] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 66.316684] ipv6_frags_init_net+0x206/0x3c0 [ 66.317313] ops_init+0xbb/0x6b0 [ 66.317801] setup_net+0x3d9/0x990 [ 66.318318] ? down_read_killable+0x1d7/0x4e0 [ 66.318947] ? __pfx_setup_net+0x10/0x10 [ 66.319531] ? copy_net_ns+0x17c/0x770 [ 66.320107] copy_net_ns+0x321/0x770 [ 66.320619] create_new_namespaces+0x3f6/0xb30 [ 66.321273] unshare_nsproxy_namespaces+0xc1/0x200 [ 66.321932] ksys_unshare+0x44d/0x8e0 [ 66.322492] ? __pfx_ksys_unshare+0x10/0x10 [ 66.323141] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 66.323907] __x64_sys_unshare+0x31/0x40 [ 66.324561] do_syscall_64+0x3f/0x90 [ 66.325110] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 66.325805] RIP: 0033:0x7f579ea290d7 [ 66.326335] 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 [ 66.328584] RSP: 002b:00007ffcf6c32538 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 66.329545] RAX: ffffffffffffffda RBX: 00007ffcf6c32b78 RCX: 00007f579ea290d7 [ 66.330443] RDX: 00007f579ea9341f RSI: 00007ffcf6c324d0 RDI: 0000000040000000 [ 66.331352] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffcf6c322e0 [ 66.332255] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f579eb3bbf0 [ 66.333150] R13: 00007ffcf6c32610 R14: 0000000000000000 R15: 00000000000000f8 [ 66.334073] [ 66.334382] irq event stamp: 9417 [ 66.334828] hardirqs last enabled at (9427): [] __up_console_sem+0x78/0x80 [ 66.335899] hardirqs last disabled at (9438): [] __up_console_sem+0x5d/0x80 [ 66.336984] softirqs last enabled at (9278): [] irq_exit_rcu+0x93/0xc0 [ 66.338027] softirqs last disabled at (9273): [] irq_exit_rcu+0x93/0xc0 [ 66.339091] ---[ end trace 0000000000000000 ]--- [ 66.340436] ------------[ cut here ]------------ [ 66.341143] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 66.343241] WARNING: CPU: 1 PID: 260 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 66.344338] Modules linked in: [ 66.344746] CPU: 1 PID: 260 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 66.345889] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 66.346908] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 66.347574] 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 [ 66.349737] RSP: 0018:ffff888019687bf0 EFLAGS: 00010286 [ 66.350424] RAX: 0000000000000000 RBX: ffff88800d874240 RCX: 0000000000000000 [ 66.351328] RDX: ffff888019499b40 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 66.352207] RBP: ffff88800d874254 R08: 0000000000000001 R09: 0000000000000000 [ 66.353083] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 66.353935] R13: ffffffff84e223a0 R14: ffff88800d874248 R15: ffffffff84daf020 [ 66.354851] FS: 0000555555762400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 66.355833] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 66.356576] CR2: 00007f29bfd5d6f4 CR3: 000000001a4ac000 CR4: 0000000000350ee0 [ 66.357461] Call Trace: [ 66.357788] [ 66.358119] nf_ct_net_init+0x224/0x3d0 [ 66.358629] ? __pfx_nf_ct_net_init+0x10/0x10 [ 66.359242] ops_init+0xbb/0x6b0 [ 66.359690] setup_net+0x3d9/0x990 [ 66.360169] ? down_read_killable+0x1d7/0x4e0 [ 66.360741] ? __pfx_setup_net+0x10/0x10 [ 66.361280] ? copy_net_ns+0x17c/0x770 [ 66.361784] copy_net_ns+0x321/0x770 [ 66.362293] create_new_namespaces+0x3f6/0xb30 [ 66.362889] unshare_nsproxy_namespaces+0xc1/0x200 [ 66.363540] ksys_unshare+0x44d/0x8e0 [ 66.364059] ? __pfx_ksys_unshare+0x10/0x10 [ 66.364604] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 66.365339] __x64_sys_unshare+0x31/0x40 [ 66.365860] do_syscall_64+0x3f/0x90 [ 66.366365] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 66.367061] RIP: 0033:0x7f579ea290d7 [ 66.367526] 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 [ 66.369699] RSP: 002b:00007ffcf6c32538 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 66.370655] RAX: ffffffffffffffda RBX: 00007ffcf6c32b78 RCX: 00007f579ea290d7 [ 66.371552] RDX: 00007f579ea9341f RSI: 00007ffcf6c324d0 RDI: 0000000040000000 [ 66.372444] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffcf6c322e0 [ 66.373331] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f579eb3bbf0 [ 66.374215] R13: 00007ffcf6c32610 R14: 0000000000000000 R15: 00000000000000f8 [ 66.375145] [ 66.375448] irq event stamp: 10231 [ 66.375877] hardirqs last enabled at (10241): [] __up_console_sem+0x78/0x80 [ 66.376955] hardirqs last disabled at (10252): [] __up_console_sem+0x5d/0x80 [ 66.378022] softirqs last enabled at (10116): [] irq_exit_rcu+0x93/0xc0 [ 66.379075] softirqs last disabled at (10111): [] irq_exit_rcu+0x93/0xc0 [ 66.380105] ---[ end trace 0000000000000000 ]--- executing program [ 67.924753] Bluetooth: hci0: command 0x0409 tx timeout [ 69.972063] Bluetooth: hci0: command 0x041b tx timeout executing program [ 72.020195] Bluetooth: hci0: command 0x040f tx timeout executing program [ 74.068071] Bluetooth: hci0: command 0x0419 tx timeout VM DIAGNOSIS: 19:20:20 Registers: info registers vcpu 0 RAX=0000000000000100 RBX=1ffff11001feceb9 RCX=ffffffff812cd9ff RDX=1ffffffff0ef2f46 RSI=0000000000000008 RDI=ffffffff87797a30 RBP=ffff88800ff58a18 RSP=ffff88800ff67590 R8 =0000000000000000 R9 =fffffbfff0ef2d38 R10=ffffffff877969c7 R11=0000000000000001 R12=0000000000000008 R13=ffff88800ff58a38 R14=ffffffff877979e0 R15=0000000000000100 RIP=ffffffff812cda42 RFL=00000006 [-----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 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=00007f8513719000 CR3=00000000101a0000 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=2036333a30323a39312036312079614d XMM01=5d3430353235322e36362020205b203a XMM02=75636578652d7a7973203a6d6d6f4320 XMM03=20202020202020572020202020202020 XMM04=6e2d3263722d302e342e362020202020 XMM05=3a6465746e69615420302e726f747563 XMM06=32203a4449502031203a555043205d34 XMM07=6e72656b2072656c6c616b7a79732036 XMM08=7475636578652d7a7973223d6d6d6f63 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=dffffc0000000005 RBX=00000000000003f9 RCX=0000000000000000 RDX=00000000000003f9 RSI=ffffffff825075f0 RDI=ffffffff87f27c00 RBP=ffffffff87f27bc0 RSP=ffff888019687620 R8 =0000000000000001 R9 =ffffed10032d0eb5 R10=0000000000000003 R11=0000000000000001 R12=000000000000005f R13=ffffffff87f27bc0 R14=ffffffff87f27c10 R15=ffffffff87f27e78 RIP=ffffffff82507645 RFL=00000006 [-----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 0000555555762400 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=00007f29bfd5d6f4 CR3=000000001a4ac000 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