syzkaller login: [ 32.392131] sshd (210) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:56729' (ECDSA) to the list of known hosts. 2023/05/16 13:05:06 fuzzer started 2023/05/16 13:05:06 dialing manager at localhost:35573 2023/05/16 13:05:07 checking machine... 2023/05/16 13:05:07 checking revisions... [ 37.062681] kmemleak: Automatic memory scanning thread ended 2023/05/16 13:05:07 testing simple program... [ 37.129495] cgroup: Unknown subsys name 'net' [ 37.218190] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 49.805975] audit: type=1400 audit(1684242319.948:6): avc: denied { execmem } for pid=256 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 50.915213] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 50.918475] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 50.920967] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 50.925293] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 50.926914] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 50.928219] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 51.290592] ------------[ cut here ]------------ [ 51.291371] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 51.293293] WARNING: CPU: 0 PID: 257 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 51.294547] Modules linked in: [ 51.295059] CPU: 0 PID: 257 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 51.299834] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 51.300836] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 51.301472] 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 [ 51.303617] RSP: 0018:ffff8880202dfc00 EFLAGS: 00010282 [ 51.304255] RAX: 0000000000000000 RBX: ffff88800dec1c40 RCX: 0000000000000000 [ 51.305130] RDX: ffff8880202d0000 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 51.306008] RBP: ffff88800dec1c54 R08: 0000000000000001 R09: 0000000000000000 [ 51.306908] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 51.307779] R13: ffffffff84e223a0 R14: ffff88800dec1c48 R15: ffffffff84d73340 [ 51.308655] FS: 0000555555911400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 51.309626] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.310330] CR2: 00007ffe66116000 CR3: 000000001808e000 CR4: 0000000000350ef0 [ 51.311207] Call Trace: [ 51.311525] [ 51.311848] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 51.312445] ipv4_frags_init_net+0x269/0x440 [ 51.313015] ops_init+0xbb/0x6b0 [ 51.313449] setup_net+0x3d9/0x990 [ 51.313920] ? down_read_killable+0x1d7/0x4e0 [ 51.314480] ? __pfx_setup_net+0x10/0x10 [ 51.315009] ? copy_net_ns+0x17c/0x770 [ 51.315502] copy_net_ns+0x321/0x770 [ 51.315999] create_new_namespaces+0x3f6/0xb30 [ 51.316579] unshare_nsproxy_namespaces+0xc1/0x200 [ 51.317224] ksys_unshare+0x44d/0x8e0 [ 51.317738] ? __pfx_ksys_unshare+0x10/0x10 [ 51.318285] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 51.319047] __x64_sys_unshare+0x31/0x40 [ 51.319562] do_syscall_64+0x3f/0x90 [ 51.320066] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 51.320728] RIP: 0033:0x7f4f3b82a0d7 [ 51.321186] 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 [ 51.323348] RSP: 002b:00007ffc402ffe98 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 51.324283] RAX: ffffffffffffffda RBX: 00007ffc403004d8 RCX: 00007f4f3b82a0d7 [ 51.325175] RDX: 00007f4f3b89441f RSI: 00007ffc402ffe30 RDI: 0000000040000000 [ 51.326035] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffc402ffc40 [ 51.326916] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f4f3b93cbf0 [ 51.327781] R13: 00007ffc402fff70 R14: 0000000000000000 R15: 00000000000000f8 [ 51.328666] [ 51.328959] irq event stamp: 7711 [ 51.329379] hardirqs last enabled at (7721): [] __up_console_sem+0x78/0x80 [ 51.330444] hardirqs last disabled at (7732): [] __up_console_sem+0x5d/0x80 [ 51.331475] softirqs last enabled at (7648): [] irq_exit_rcu+0x93/0xc0 [ 51.332491] softirqs last disabled at (7643): [] irq_exit_rcu+0x93/0xc0 [ 51.333498] ---[ end trace 0000000000000000 ]--- [ 51.338685] ------------[ cut here ]------------ [ 51.339268] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 51.341030] WARNING: CPU: 0 PID: 257 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 51.342091] Modules linked in: [ 51.342508] CPU: 0 PID: 257 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 51.343638] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 51.344622] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 51.345248] 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 [ 51.347382] RSP: 0018:ffff8880202dfc00 EFLAGS: 00010282 [ 51.348055] RAX: 0000000000000000 RBX: ffff88800c76a240 RCX: 0000000000000000 [ 51.348927] RDX: ffff8880202d0000 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 51.349787] RBP: ffff88800c76a254 R08: 0000000000000001 R09: 0000000000000000 [ 51.350687] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 51.351544] R13: ffffffff84e223a0 R14: ffff88800c76a248 R15: ffffffff84da62e0 [ 51.352413] FS: 0000555555911400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 51.353386] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.354105] CR2: 00007ffe66116000 CR3: 000000001808e000 CR4: 0000000000350ef0 [ 51.354988] Call Trace: [ 51.355306] [ 51.355626] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 51.356233] ipv6_frags_init_net+0x206/0x3c0 [ 51.356806] ops_init+0xbb/0x6b0 [ 51.357245] setup_net+0x3d9/0x990 [ 51.357723] ? down_read_killable+0x1d7/0x4e0 [ 51.358279] ? __pfx_setup_net+0x10/0x10 [ 51.358827] ? copy_net_ns+0x17c/0x770 [ 51.359322] copy_net_ns+0x321/0x770 [ 51.359818] create_new_namespaces+0x3f6/0xb30 [ 51.360392] unshare_nsproxy_namespaces+0xc1/0x200 [ 51.361031] ksys_unshare+0x44d/0x8e0 [ 51.361534] ? __pfx_ksys_unshare+0x10/0x10 [ 51.362099] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 51.362833] __x64_sys_unshare+0x31/0x40 [ 51.363340] do_syscall_64+0x3f/0x90 [ 51.363830] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 51.364461] RIP: 0033:0x7f4f3b82a0d7 [ 51.364944] 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 [ 51.367094] RSP: 002b:00007ffc402ffe98 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 51.368025] RAX: ffffffffffffffda RBX: 00007ffc403004d8 RCX: 00007f4f3b82a0d7 [ 51.368886] RDX: 00007f4f3b89441f RSI: 00007ffc402ffe30 RDI: 0000000040000000 [ 51.369756] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffc402ffc40 [ 51.370629] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f4f3b93cbf0 [ 51.371466] R13: 00007ffc402fff70 R14: 0000000000000000 R15: 00000000000000f8 [ 51.372357] [ 51.372677] irq event stamp: 9283 [ 51.373090] hardirqs last enabled at (9293): [] __up_console_sem+0x78/0x80 [ 51.374122] hardirqs last disabled at (9304): [] __up_console_sem+0x5d/0x80 [ 51.375163] softirqs last enabled at (8780): [] irq_exit_rcu+0x93/0xc0 [ 51.376176] softirqs last disabled at (8753): [] irq_exit_rcu+0x93/0xc0 [ 51.377185] ---[ end trace 0000000000000000 ]--- [ 51.378493] ------------[ cut here ]------------ [ 51.379102] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 51.381022] WARNING: CPU: 0 PID: 257 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 51.382071] Modules linked in: [ 51.382476] CPU: 0 PID: 257 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 51.383623] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 51.384613] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 51.385244] 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 [ 51.387404] RSP: 0018:ffff8880202dfbf0 EFLAGS: 00010286 [ 51.388076] RAX: 0000000000000000 RBX: ffff88800d750e40 RCX: 0000000000000000 [ 51.388946] RDX: ffff8880202d0000 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 51.389814] RBP: ffff88800d750e54 R08: 0000000000000001 R09: 0000000000000000 [ 51.390706] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 51.391540] R13: ffffffff84e223a0 R14: ffff88800d750e48 R15: ffffffff84daf020 [ 51.392413] FS: 0000555555911400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 51.393376] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.394109] CR2: 00007ffe66116000 CR3: 000000001808e000 CR4: 0000000000350ef0 [ 51.394989] Call Trace: [ 51.395312] [ 51.395632] nf_ct_net_init+0x224/0x3d0 [ 51.396137] ? __pfx_nf_ct_net_init+0x10/0x10 [ 51.396723] ops_init+0xbb/0x6b0 [ 51.397158] setup_net+0x3d9/0x990 [ 51.397630] ? down_read_killable+0x1d7/0x4e0 [ 51.398185] ? __pfx_setup_net+0x10/0x10 [ 51.398733] ? copy_net_ns+0x17c/0x770 [ 51.399231] copy_net_ns+0x321/0x770 [ 51.399733] create_new_namespaces+0x3f6/0xb30 [ 51.400306] unshare_nsproxy_namespaces+0xc1/0x200 [ 51.400935] ksys_unshare+0x44d/0x8e0 [ 51.401420] ? __pfx_ksys_unshare+0x10/0x10 [ 51.401983] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 51.402725] __x64_sys_unshare+0x31/0x40 [ 51.403235] do_syscall_64+0x3f/0x90 [ 51.403724] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 51.404356] RIP: 0033:0x7f4f3b82a0d7 [ 51.404836] 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 [ 51.406959] RSP: 002b:00007ffc402ffe98 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 51.407901] RAX: ffffffffffffffda RBX: 00007ffc403004d8 RCX: 00007f4f3b82a0d7 [ 51.408770] RDX: 00007f4f3b89441f RSI: 00007ffc402ffe30 RDI: 0000000040000000 [ 51.409637] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffc402ffc40 [ 51.410503] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f4f3b93cbf0 [ 51.411379] R13: 00007ffc402fff70 R14: 0000000000000000 R15: 00000000000000f8 [ 51.412269] [ 51.412575] irq event stamp: 10021 [ 51.413033] hardirqs last enabled at (10033): [] __up_console_sem+0x78/0x80 [ 51.414075] hardirqs last disabled at (10044): [] __up_console_sem+0x5d/0x80 [ 51.415130] softirqs last enabled at (9614): [] irq_exit_rcu+0x93/0xc0 [ 51.416150] softirqs last disabled at (9609): [] irq_exit_rcu+0x93/0xc0 [ 51.417151] ---[ end trace 0000000000000000 ]--- executing program [ 52.985314] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 55.032664] Bluetooth: hci0: command 0x041b tx timeout [ 57.080817] Bluetooth: hci0: command 0x040f tx timeout executing program [ 59.128765] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 13:05:20 Registers: info registers vcpu 0 RAX=000000000000002e RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507685 RDI=ffffffff87f27c00 RBP=ffffffff87f27bc0 RSP=ffff8880202df5f0 R8 =0000000000000001 R9 =000000000000000a R10=000000000000002e R11=0000000000000001 R12=000000000000002e 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 0000555555911400 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=00007ffe66116000 CR3=000000001808e000 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=000000000003662d 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=00007f55af53d240 CR3=000000000eb64000 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=2031323a35303a33312036312079614d XMM01=5d3935303539322e31352020205b203a XMM02=75636578652d7a7973203a6d6d6f4320 XMM03=20202020202020572020202020202020 XMM04=6e2d3263722d302e342e362020202020 XMM05=3a6465746e69615420302e726f747563 XMM06=32203a4449502030203a555043205d39 XMM07=6e72656b2072656c6c616b7a79732031 XMM08=7475636578652d7a7973223d6d6d6f63 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000