syzkaller login: [ 52.882155] sshd (226) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:61086' (ECDSA) to the list of known hosts. 2023/05/17 16:12:16 fuzzer started 2023/05/17 16:12:16 dialing manager at localhost:44319 2023/05/17 16:12:16 checking machine... 2023/05/17 16:12:16 checking revisions... [ 54.037257] kmemleak: Automatic memory scanning thread ended 2023/05/17 16:12:17 testing simple program... [ 54.115892] cgroup: Unknown subsys name 'net' [ 54.197305] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 66.439157] audit: type=1400 audit(1684339949.521:6): 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 [ 67.545167] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 67.547557] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 67.549123] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 67.555586] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 67.557291] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 67.559822] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 67.929861] ------------[ cut here ]------------ [ 67.930652] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 67.932605] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 67.933898] Modules linked in: [ 67.934325] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 67.939715] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 67.940740] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 67.941417] 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 [ 67.943619] RSP: 0018:ffff8880147f7c00 EFLAGS: 00010282 [ 67.944284] RAX: 0000000000000000 RBX: ffff88800c488840 RCX: 0000000000000000 [ 67.945201] RDX: ffff8880158f1b40 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 67.946102] RBP: ffff88800c488854 R08: 0000000000000001 R09: 0000000000000000 [ 67.947005] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 67.947887] R13: ffffffff84e23fe0 R14: ffff88800c488848 R15: ffffffff84d74dc0 [ 67.948781] FS: 0000555555b1b400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 67.949793] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.950543] CR2: 00007f02b99526f4 CR3: 000000000eae4000 CR4: 0000000000350ee0 [ 67.951434] Call Trace: [ 67.951763] [ 67.952060] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 67.952699] ipv4_frags_init_net+0x269/0x440 [ 67.953269] ops_init+0xbb/0x6b0 [ 67.953751] setup_net+0x3d9/0x990 [ 67.954236] ? down_read_killable+0x1d7/0x4e0 [ 67.954845] ? __pfx_setup_net+0x10/0x10 [ 67.955384] ? copy_net_ns+0x17c/0x770 [ 67.955888] copy_net_ns+0x321/0x770 [ 67.956403] create_new_namespaces+0x3f6/0xb30 [ 67.956989] unshare_nsproxy_namespaces+0xc1/0x200 [ 67.957639] ksys_unshare+0x44d/0x8e0 [ 67.958145] ? __pfx_ksys_unshare+0x10/0x10 [ 67.958725] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 67.959462] __x64_sys_unshare+0x31/0x40 [ 67.959974] do_syscall_64+0x3f/0x90 [ 67.960481] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 67.961122] RIP: 0033:0x7f6e21f2f0d7 [ 67.961621] 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 [ 67.963793] RSP: 002b:00007fff26017668 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 67.964749] RAX: ffffffffffffffda RBX: 00007fff26017ca8 RCX: 00007f6e21f2f0d7 [ 67.965638] RDX: 00007f6e21f9941f RSI: 00007fff26017600 RDI: 0000000040000000 [ 67.966548] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fff26017410 [ 67.967429] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f6e22041bf0 [ 67.968280] R13: 00007fff26017740 R14: 0000000000000000 R15: 00000000000000f8 [ 67.969186] [ 67.969520] irq event stamp: 8213 [ 67.969955] hardirqs last enabled at (8223): [] __up_console_sem+0x78/0x80 [ 67.971005] hardirqs last disabled at (8234): [] __up_console_sem+0x5d/0x80 [ 67.972045] softirqs last enabled at (8138): [] irq_exit_rcu+0x93/0xc0 [ 67.973076] softirqs last disabled at (8133): [] irq_exit_rcu+0x93/0xc0 [ 67.974169] ---[ end trace 0000000000000000 ]--- [ 67.979393] ------------[ cut here ]------------ [ 67.979991] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 67.981699] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 67.982762] Modules linked in: [ 67.983170] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 67.984341] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 67.985389] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 67.986070] 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 [ 67.988265] RSP: 0018:ffff8880147f7c00 EFLAGS: 00010282 [ 67.988954] RAX: 0000000000000000 RBX: ffff88800eaea040 RCX: 0000000000000000 [ 67.989861] RDX: ffff8880158f1b40 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 67.990751] RBP: ffff88800eaea054 R08: 0000000000000001 R09: 0000000000000000 [ 67.991646] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 67.992555] R13: ffffffff84e23fe0 R14: ffff88800eaea048 R15: ffffffff84da7d60 [ 67.993468] FS: 0000555555b1b400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 67.994491] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.995213] CR2: 00007f02b99526f4 CR3: 000000000eae4000 CR4: 0000000000350ee0 [ 67.996106] Call Trace: [ 67.996466] [ 67.996769] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 67.997412] ipv6_frags_init_net+0x206/0x3c0 [ 67.997979] ops_init+0xbb/0x6b0 [ 67.998461] setup_net+0x3d9/0x990 [ 67.998932] ? down_read_killable+0x1d7/0x4e0 [ 67.999531] ? __pfx_setup_net+0x10/0x10 [ 68.000064] ? copy_net_ns+0x17c/0x770 [ 68.000601] copy_net_ns+0x321/0x770 [ 68.001095] create_new_namespaces+0x3f6/0xb30 [ 68.001720] unshare_nsproxy_namespaces+0xc1/0x200 [ 68.002378] ksys_unshare+0x44d/0x8e0 [ 68.002871] ? __pfx_ksys_unshare+0x10/0x10 [ 68.003455] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 68.004177] __x64_sys_unshare+0x31/0x40 [ 68.004733] do_syscall_64+0x3f/0x90 [ 68.005216] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 68.005904] RIP: 0033:0x7f6e21f2f0d7 [ 68.006411] 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 [ 68.008602] RSP: 002b:00007fff26017668 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 68.009566] RAX: ffffffffffffffda RBX: 00007fff26017ca8 RCX: 00007f6e21f2f0d7 [ 68.010496] RDX: 00007f6e21f9941f RSI: 00007fff26017600 RDI: 0000000040000000 [ 68.011388] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fff26017410 [ 68.012261] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f6e22041bf0 [ 68.013161] R13: 00007fff26017740 R14: 0000000000000000 R15: 00000000000000f8 [ 68.014094] [ 68.014440] irq event stamp: 9963 [ 68.014876] hardirqs last enabled at (9973): [] __up_console_sem+0x78/0x80 [ 68.015933] hardirqs last disabled at (9984): [] __up_console_sem+0x5d/0x80 [ 68.017010] softirqs last enabled at (9198): [] irq_exit_rcu+0x93/0xc0 [ 68.018082] softirqs last disabled at (9193): [] irq_exit_rcu+0x93/0xc0 [ 68.019110] ---[ end trace 0000000000000000 ]--- [ 68.020491] ------------[ cut here ]------------ [ 68.021076] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 68.023090] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 68.024174] Modules linked in: [ 68.024613] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 68.025795] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 68.026818] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 68.027508] 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 [ 68.029718] RSP: 0018:ffff8880147f7bf0 EFLAGS: 00010286 [ 68.030426] RAX: 0000000000000000 RBX: ffff88800d402040 RCX: 0000000000000000 [ 68.031290] RDX: ffff8880158f1b40 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 68.032178] RBP: ffff88800d402054 R08: 0000000000000001 R09: 0000000000000000 [ 68.033068] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 68.033973] R13: ffffffff84e23fe0 R14: ffff88800d402048 R15: ffffffff84db0aa0 [ 68.034885] FS: 0000555555b1b400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 68.035891] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 68.036638] CR2: 00007f02b99526f4 CR3: 000000000eae4000 CR4: 0000000000350ee0 [ 68.037538] Call Trace: [ 68.037895] [ 68.038198] nf_ct_net_init+0x224/0x3d0 [ 68.038767] ? __pfx_nf_ct_net_init+0x10/0x10 [ 68.039383] ops_init+0xbb/0x6b0 [ 68.039839] setup_net+0x3d9/0x990 [ 68.040310] ? down_read_killable+0x1d7/0x4e0 [ 68.040926] ? __pfx_setup_net+0x10/0x10 [ 68.041481] ? copy_net_ns+0x17c/0x770 [ 68.042006] copy_net_ns+0x321/0x770 [ 68.042527] create_new_namespaces+0x3f6/0xb30 [ 68.043111] unshare_nsproxy_namespaces+0xc1/0x200 [ 68.043756] ksys_unshare+0x44d/0x8e0 [ 68.044253] ? __pfx_ksys_unshare+0x10/0x10 [ 68.044835] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 68.045580] __x64_sys_unshare+0x31/0x40 [ 68.046109] do_syscall_64+0x3f/0x90 [ 68.046624] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 68.047269] RIP: 0033:0x7f6e21f2f0d7 [ 68.047762] 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 [ 68.049967] RSP: 002b:00007fff26017668 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 68.050915] RAX: ffffffffffffffda RBX: 00007fff26017ca8 RCX: 00007f6e21f2f0d7 [ 68.051797] RDX: 00007f6e21f9941f RSI: 00007fff26017600 RDI: 0000000040000000 [ 68.052698] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fff26017410 [ 68.053600] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f6e22041bf0 [ 68.054501] R13: 00007fff26017740 R14: 0000000000000000 R15: 00000000000000f8 [ 68.055422] [ 68.055725] irq event stamp: 10777 [ 68.056159] hardirqs last enabled at (10787): [] __up_console_sem+0x78/0x80 [ 68.057224] hardirqs last disabled at (10798): [] __up_console_sem+0x5d/0x80 [ 68.058315] softirqs last enabled at (10338): [] irq_exit_rcu+0x93/0xc0 [ 68.059340] softirqs last disabled at (10333): [] irq_exit_rcu+0x93/0xc0 [ 68.060398] ---[ end trace 0000000000000000 ]--- executing program [ 69.621120] Bluetooth: hci0: command 0x0409 tx timeout [ 71.668435] Bluetooth: hci0: command 0x041b tx timeout executing program [ 73.717517] Bluetooth: hci0: command 0x040f tx timeout executing program [ 75.764433] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 16:12:12 Registers: info registers vcpu 0 RAX=000000000002222f 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=00000202 [-------] 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=00007f109c0d5a50 CR3=000000000ea92000 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=2031333a32313a36312037312079614d XMM01=5d3532333433392e37362020205b203a XMM02=75636578652d7a7973203a6d6d6f4320 XMM03=20202020202020572020202020202020 XMM04=6e2d3263722d302e342e362020202020 XMM05=3a6465746e69615420302e726f747563 XMM06=32203a4449502031203a555043205d35 XMM07=6e72656b2072656c6c616b7a79732031 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=ffff8880147f75f0 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 0000555555b1b400 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=00007f02b99526f4 CR3=000000000eae4000 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