syzkaller login: [ 39.923492] sshd (219) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:57625' (ECDSA) to the list of known hosts. 2023/05/16 21:12:23 fuzzer started 2023/05/16 21:12:23 dialing manager at localhost:35573 2023/05/16 21:12:23 checking machine... 2023/05/16 21:12:23 checking revisions... [ 41.873841] kmemleak: Automatic memory scanning thread ended 2023/05/16 21:12:23 testing simple program... [ 41.943295] cgroup: Unknown subsys name 'net' [ 42.023517] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 55.028005] audit: type=1400 audit(1684271557.094:6): 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 [ 56.146473] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 56.149268] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 56.150399] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 56.153637] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 56.155720] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 56.156999] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 56.580949] ------------[ cut here ]------------ [ 56.581621] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 56.583501] WARNING: CPU: 0 PID: 260 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 56.584741] Modules linked in: [ 56.585297] CPU: 0 PID: 260 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 56.590431] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 56.591680] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 56.592590] 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 [ 56.595068] RSP: 0018:ffff8880185e7c00 EFLAGS: 00010282 [ 56.595862] RAX: 0000000000000000 RBX: ffff88800f6b4840 RCX: 0000000000000000 [ 56.596828] RDX: ffff888015a3b680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 56.597756] RBP: ffff88800f6b4854 R08: 0000000000000001 R09: 0000000000000000 [ 56.598732] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 56.599708] R13: ffffffff84e223a0 R14: ffff88800f6b4848 R15: ffffffff84d73340 [ 56.600674] FS: 0000555555e4c400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 56.601750] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.602550] CR2: 00007f053c0606f4 CR3: 00000000185a8000 CR4: 0000000000350ef0 [ 56.603517] Call Trace: [ 56.603905] [ 56.604214] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 56.604894] ipv4_frags_init_net+0x269/0x440 [ 56.605487] ops_init+0xbb/0x6b0 [ 56.606000] setup_net+0x3d9/0x990 [ 56.606513] ? down_read_killable+0x1d7/0x4e0 [ 56.607129] ? __pfx_setup_net+0x10/0x10 [ 56.607661] ? copy_net_ns+0x17c/0x770 [ 56.608224] copy_net_ns+0x321/0x770 [ 56.608719] create_new_namespaces+0x3f6/0xb30 [ 56.609363] unshare_nsproxy_namespaces+0xc1/0x200 [ 56.610048] ksys_unshare+0x44d/0x8e0 [ 56.610585] ? __pfx_ksys_unshare+0x10/0x10 [ 56.611219] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 56.612013] __x64_sys_unshare+0x31/0x40 [ 56.612568] do_syscall_64+0x3f/0x90 [ 56.613110] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 56.613826] RIP: 0033:0x7f077b0540d7 [ 56.614316] 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 [ 56.616652] RSP: 002b:00007ffd45419df8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 56.617674] RAX: ffffffffffffffda RBX: 00007ffd4541a438 RCX: 00007f077b0540d7 [ 56.618655] RDX: 00007f077b0be41f RSI: 00007ffd45419d90 RDI: 0000000040000000 [ 56.619617] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd45419ba0 [ 56.620572] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f077b166bf0 [ 56.621517] R13: 00007ffd45419ed0 R14: 0000000000000000 R15: 00000000000000f8 [ 56.622494] [ 56.622844] irq event stamp: 9263 [ 56.623286] hardirqs last enabled at (9273): [] __up_console_sem+0x78/0x80 [ 56.624413] hardirqs last disabled at (9284): [] __up_console_sem+0x5d/0x80 [ 56.625534] softirqs last enabled at (8848): [] irq_exit_rcu+0x93/0xc0 [ 56.626649] softirqs last disabled at (8833): [] irq_exit_rcu+0x93/0xc0 [ 56.627728] ---[ end trace 0000000000000000 ]--- [ 56.633088] ------------[ cut here ]------------ [ 56.633692] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 56.635488] WARNING: CPU: 0 PID: 260 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 56.636625] Modules linked in: [ 56.637077] CPU: 0 PID: 260 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 56.638298] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 56.639368] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 56.640083] 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 [ 56.642369] RSP: 0018:ffff8880185e7c00 EFLAGS: 00010282 [ 56.643108] RAX: 0000000000000000 RBX: ffff88800d772a40 RCX: 0000000000000000 [ 56.644064] RDX: ffff888015a3b680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 56.645017] RBP: ffff88800d772a54 R08: 0000000000000001 R09: 0000000000000000 [ 56.645965] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 56.646939] R13: ffffffff84e223a0 R14: ffff88800d772a48 R15: ffffffff84da62e0 [ 56.647891] FS: 0000555555e4c400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 56.648941] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.649686] CR2: 00007f053c0606f4 CR3: 00000000185a8000 CR4: 0000000000350ef0 [ 56.650612] Call Trace: [ 56.650986] [ 56.651297] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 56.651965] ipv6_frags_init_net+0x206/0x3c0 [ 56.652540] ops_init+0xbb/0x6b0 [ 56.653021] setup_net+0x3d9/0x990 [ 56.653488] ? down_read_killable+0x1d7/0x4e0 [ 56.654112] ? __pfx_setup_net+0x10/0x10 [ 56.654661] ? copy_net_ns+0x17c/0x770 [ 56.655213] copy_net_ns+0x321/0x770 [ 56.655706] create_new_namespaces+0x3f6/0xb30 [ 56.656346] unshare_nsproxy_namespaces+0xc1/0x200 [ 56.657019] ksys_unshare+0x44d/0x8e0 [ 56.657523] ? __pfx_ksys_unshare+0x10/0x10 [ 56.658129] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 56.658910] __x64_sys_unshare+0x31/0x40 [ 56.659448] do_syscall_64+0x3f/0x90 [ 56.659993] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 56.660684] RIP: 0033:0x7f077b0540d7 [ 56.661213] 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 [ 56.663504] RSP: 002b:00007ffd45419df8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 56.664481] RAX: ffffffffffffffda RBX: 00007ffd4541a438 RCX: 00007f077b0540d7 [ 56.665401] RDX: 00007f077b0be41f RSI: 00007ffd45419d90 RDI: 0000000040000000 [ 56.666322] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd45419ba0 [ 56.667280] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f077b166bf0 [ 56.668178] R13: 00007ffd45419ed0 R14: 0000000000000000 R15: 00000000000000f8 [ 56.669095] [ 56.669399] irq event stamp: 11117 [ 56.669882] hardirqs last enabled at (11129): [] __up_console_sem+0x78/0x80 [ 56.670982] hardirqs last disabled at (11140): [] __up_console_sem+0x5d/0x80 [ 56.672065] softirqs last enabled at (10652): [] irq_exit_rcu+0x93/0xc0 [ 56.673120] softirqs last disabled at (10647): [] irq_exit_rcu+0x93/0xc0 [ 56.674163] ---[ end trace 0000000000000000 ]--- [ 56.675554] ------------[ cut here ]------------ [ 56.676205] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 56.678183] WARNING: CPU: 0 PID: 260 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 56.679251] Modules linked in: [ 56.679660] CPU: 0 PID: 260 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 56.680836] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 56.681859] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 56.682543] 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 [ 56.684718] RSP: 0018:ffff8880185e7bf0 EFLAGS: 00010286 [ 56.685443] RAX: 0000000000000000 RBX: ffff88800d772440 RCX: 0000000000000000 [ 56.686335] RDX: ffff888015a3b680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 56.687246] RBP: ffff88800d772454 R08: 0000000000000001 R09: 0000000000000000 [ 56.688132] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 56.689027] R13: ffffffff84e223a0 R14: ffff88800d772448 R15: ffffffff84daf020 [ 56.689919] FS: 0000555555e4c400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 56.690935] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.691642] CR2: 00007f053c0606f4 CR3: 00000000185a8000 CR4: 0000000000350ef0 [ 56.692544] Call Trace: [ 56.692900] [ 56.693200] nf_ct_net_init+0x224/0x3d0 [ 56.693707] ? __pfx_nf_ct_net_init+0x10/0x10 [ 56.694308] ops_init+0xbb/0x6b0 [ 56.694772] setup_net+0x3d9/0x990 [ 56.695254] ? down_read_killable+0x1d7/0x4e0 [ 56.695847] ? __pfx_setup_net+0x10/0x10 [ 56.696358] ? copy_net_ns+0x17c/0x770 [ 56.696894] copy_net_ns+0x321/0x770 [ 56.697375] create_new_namespaces+0x3f6/0xb30 [ 56.697990] unshare_nsproxy_namespaces+0xc1/0x200 [ 56.698619] ksys_unshare+0x44d/0x8e0 [ 56.699139] ? __pfx_ksys_unshare+0x10/0x10 [ 56.699683] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 56.700430] __x64_sys_unshare+0x31/0x40 [ 56.700988] do_syscall_64+0x3f/0x90 [ 56.701487] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 56.702304] RIP: 0033:0x7f077b0540d7 [ 56.702927] 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 [ 56.705570] RSP: 002b:00007ffd45419df8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 56.706739] RAX: ffffffffffffffda RBX: 00007ffd4541a438 RCX: 00007f077b0540d7 [ 56.707829] RDX: 00007f077b0be41f RSI: 00007ffd45419d90 RDI: 0000000040000000 [ 56.708908] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd45419ba0 [ 56.709989] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f077b166bf0 [ 56.711081] R13: 00007ffd45419ed0 R14: 0000000000000000 R15: 00000000000000f8 [ 56.712196] [ 56.712567] irq event stamp: 11885 [ 56.713126] hardirqs last enabled at (11897): [] __up_console_sem+0x78/0x80 [ 56.714429] hardirqs last disabled at (11908): [] __up_console_sem+0x5d/0x80 [ 56.715762] softirqs last enabled at (11746): [] irq_exit_rcu+0x93/0xc0 [ 56.717061] softirqs last disabled at (11741): [] irq_exit_rcu+0x93/0xc0 [ 56.718341] ---[ end trace 0000000000000000 ]--- executing program [ 58.221435] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 60.269042] Bluetooth: hci0: command 0x041b tx timeout [ 62.317019] Bluetooth: hci0: command 0x040f tx timeout executing program [ 64.364870] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 21:12:32 Registers: info registers vcpu 0 RAX=0000000000000020 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507685 RDI=ffffffff87f27c00 RBP=ffffffff87f27bc0 RSP=ffff8880185e75f0 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 0000555555e4c400 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=00007f053c0606f4 CR3=00000000185a8000 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=000000000003c327 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=00007f17e44f8000 CR3=000000000fff6000 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=2038333a32313a31322036312079614d XMM01=5d3739323538352e36352020205b203a XMM02=75636578652d7a7973203a6d6d6f4320 XMM03=20202020202020572020202020202020 XMM04=6e2d3263722d302e342e362020202020 XMM05=3a6465746e69615420302e726f747563 XMM06=32203a4449502030203a555043205d37 XMM07=6e72656b2072656c6c616b7a79732038 XMM08=7475636578652d7a7973223d6d6d6f63 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000