syzkaller login: [ 115.202639] sshd (216) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:19950' (ECDSA) to the list of known hosts. 2023/05/17 22:07:38 fuzzer started 2023/05/17 22:07:39 dialing manager at localhost:44319 2023/05/17 22:07:39 checking machine... 2023/05/17 22:07:39 checking revisions... [ 117.469141] kmemleak: Automatic memory scanning thread ended 2023/05/17 22:07:39 testing simple program... [ 117.540100] cgroup: Unknown subsys name 'net' [ 117.657510] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 130.362048] audit: type=1400 audit(1684361272.435:6): avc: denied { execmem } for pid=257 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 131.500242] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 131.501842] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 131.505016] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 131.508555] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 131.510364] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 131.511698] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 131.911269] ------------[ cut here ]------------ [ 131.911921] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 131.913620] WARNING: CPU: 1 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 131.914698] Modules linked in: [ 131.915111] CPU: 1 PID: 258 Comm: syz-executor.0 Tainted: G W L 6.4.0-rc2-next-20230517 #1 [ 131.920082] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 131.921298] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 131.921959] 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 [ 131.924222] RSP: 0018:ffff888016aafc00 EFLAGS: 00010282 [ 131.924873] RAX: 0000000000000000 RBX: ffff88800eb6bc40 RCX: 0000000000000000 [ 131.925762] RDX: ffff88800f5a8000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 131.926651] RBP: ffff88800eb6bc54 R08: 0000000000000001 R09: 0000000000000000 [ 131.927544] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 131.928430] R13: ffffffff84e23fe0 R14: ffff88800eb6bc48 R15: ffffffff84d74dc0 [ 131.929326] FS: 0000555555b5e400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 131.930357] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 131.931066] CR2: 00007f7a261536f4 CR3: 000000000ef6a000 CR4: 0000000000350ee0 [ 131.931956] Call Trace: [ 131.932315] [ 131.932614] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 131.933253] ipv4_frags_init_net+0x269/0x440 [ 131.933818] ops_init+0xbb/0x6b0 [ 131.934317] setup_net+0x3d9/0x990 [ 131.934792] ? down_read_killable+0x1d7/0x4e0 [ 131.935433] ? __pfx_setup_net+0x10/0x10 [ 131.935971] ? copy_net_ns+0x17c/0x770 [ 131.936539] copy_net_ns+0x321/0x770 [ 131.937056] create_new_namespaces+0x3f6/0xb30 [ 131.937714] unshare_nsproxy_namespaces+0xc1/0x200 [ 131.938419] ksys_unshare+0x44d/0x8e0 [ 131.938938] ? __pfx_ksys_unshare+0x10/0x10 [ 131.939544] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 131.940318] __x64_sys_unshare+0x31/0x40 [ 131.940861] do_syscall_64+0x3f/0x90 [ 131.941396] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 131.942109] RIP: 0033:0x7f8474b7e0d7 [ 131.942631] 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 [ 131.944947] RSP: 002b:00007fffedf9d528 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 131.945981] RAX: ffffffffffffffda RBX: 00007fffedf9db68 RCX: 00007f8474b7e0d7 [ 131.946928] RDX: 00007f8474be841f RSI: 00007fffedf9d4c0 RDI: 0000000040000000 [ 131.947895] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fffedf9d2d0 [ 131.948844] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f8474c90bf0 [ 131.949792] R13: 00007fffedf9d600 R14: 0000000000000000 R15: 00000000000000f8 [ 131.950770] [ 131.951092] irq event stamp: 8071 [ 131.951571] hardirqs last enabled at (8083): [] __up_console_sem+0x78/0x80 [ 131.952694] hardirqs last disabled at (8094): [] __up_console_sem+0x5d/0x80 [ 131.953850] softirqs last enabled at (7642): [] irq_exit_rcu+0x93/0xc0 [ 131.954963] softirqs last disabled at (7601): [] irq_exit_rcu+0x93/0xc0 [ 131.956064] ---[ end trace 0000000000000000 ]--- [ 131.967079] ------------[ cut here ]------------ [ 131.967825] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 131.969644] WARNING: CPU: 0 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 131.970946] Modules linked in: [ 131.971512] CPU: 0 PID: 258 Comm: syz-executor.0 Tainted: G W L 6.4.0-rc2-next-20230517 #1 [ 131.972873] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 131.974104] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 131.974936] 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 [ 131.977553] RSP: 0018:ffff888016aafc00 EFLAGS: 00010282 [ 131.978459] RAX: 0000000000000000 RBX: ffff88800ea48040 RCX: 0000000000000000 [ 131.979593] RDX: ffff88800f5a8000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 131.980679] RBP: ffff88800ea48054 R08: 0000000000000001 R09: 0000000000000000 [ 131.981755] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 131.982846] R13: ffffffff84e23fe0 R14: ffff88800ea48048 R15: ffffffff84da7d60 [ 131.983914] FS: 0000555555b5e400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 131.985100] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 131.985930] CR2: 00007f25b07a5000 CR3: 000000000ef6a000 CR4: 0000000000350ef0 [ 131.986944] Call Trace: [ 131.987336] [ 131.987664] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 131.988370] ipv6_frags_init_net+0x206/0x3c0 [ 131.988979] ops_init+0xbb/0x6b0 [ 131.989500] setup_net+0x3d9/0x990 [ 131.990027] ? down_read_killable+0x1d7/0x4e0 [ 131.990695] ? __pfx_setup_net+0x10/0x10 [ 131.991290] ? copy_net_ns+0x17c/0x770 [ 131.991844] copy_net_ns+0x321/0x770 [ 131.992402] create_new_namespaces+0x3f6/0xb30 [ 131.993039] unshare_nsproxy_namespaces+0xc1/0x200 [ 131.993751] ksys_unshare+0x44d/0x8e0 [ 131.994324] ? __pfx_ksys_unshare+0x10/0x10 [ 131.994915] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 131.995729] __x64_sys_unshare+0x31/0x40 [ 131.996326] do_syscall_64+0x3f/0x90 [ 131.996844] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 131.997587] RIP: 0033:0x7f8474b7e0d7 [ 131.998104] 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 [ 132.000461] RSP: 002b:00007fffedf9d528 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 132.001501] RAX: ffffffffffffffda RBX: 00007fffedf9db68 RCX: 00007f8474b7e0d7 [ 132.002498] RDX: 00007f8474be841f RSI: 00007fffedf9d4c0 RDI: 0000000040000000 [ 132.003470] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fffedf9d2d0 [ 132.004439] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f8474c90bf0 [ 132.005394] R13: 00007fffedf9d600 R14: 0000000000000000 R15: 00000000000000f8 [ 132.006405] [ 132.006730] irq event stamp: 12061 [ 132.007232] hardirqs last enabled at (12073): [] __up_console_sem+0x78/0x80 [ 132.008386] hardirqs last disabled at (12084): [] __up_console_sem+0x5d/0x80 [ 132.009542] softirqs last enabled at (11744): [] irq_exit_rcu+0x93/0xc0 [ 132.010684] softirqs last disabled at (11729): [] irq_exit_rcu+0x93/0xc0 [ 132.011806] ---[ end trace 0000000000000000 ]--- [ 132.013235] ------------[ cut here ]------------ [ 132.013873] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 132.015852] WARNING: CPU: 0 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 132.017001] Modules linked in: [ 132.017464] CPU: 0 PID: 258 Comm: syz-executor.0 Tainted: G W L 6.4.0-rc2-next-20230517 #1 [ 132.018713] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 132.019810] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 132.020530] 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 [ 132.022881] RSP: 0018:ffff888016aafbf0 EFLAGS: 00010286 [ 132.023662] RAX: 0000000000000000 RBX: ffff88800ea48640 RCX: 0000000000000000 [ 132.024735] RDX: ffff88800f5a8000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 132.025810] RBP: ffff88800ea48654 R08: 0000000000000001 R09: 0000000000000000 [ 132.026872] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 132.027876] R13: ffffffff84e23fe0 R14: ffff88800ea48648 R15: ffffffff84db0aa0 [ 132.028885] FS: 0000555555b5e400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 132.030008] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 132.030840] CR2: 00007f25b07a5000 CR3: 000000000ef6a000 CR4: 0000000000350ef0 [ 132.031841] Call Trace: [ 132.032241] [ 132.032576] nf_ct_net_init+0x224/0x3d0 [ 132.033188] ? __pfx_nf_ct_net_init+0x10/0x10 [ 132.033855] ops_init+0xbb/0x6b0 [ 132.034399] setup_net+0x3d9/0x990 [ 132.034914] ? down_read_killable+0x1d7/0x4e0 [ 132.035589] ? __pfx_setup_net+0x10/0x10 [ 132.036207] ? copy_net_ns+0x17c/0x770 [ 132.036791] copy_net_ns+0x321/0x770 [ 132.037388] create_new_namespaces+0x3f6/0xb30 [ 132.038070] unshare_nsproxy_namespaces+0xc1/0x200 [ 132.038805] ksys_unshare+0x44d/0x8e0 [ 132.039425] ? __pfx_ksys_unshare+0x10/0x10 [ 132.040070] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 132.040958] __x64_sys_unshare+0x31/0x40 [ 132.041622] do_syscall_64+0x3f/0x90 [ 132.042252] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 132.043015] RIP: 0033:0x7f8474b7e0d7 [ 132.043612] 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 [ 132.046179] RSP: 002b:00007fffedf9d528 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 132.047282] RAX: ffffffffffffffda RBX: 00007fffedf9db68 RCX: 00007f8474b7e0d7 [ 132.048306] RDX: 00007f8474be841f RSI: 00007fffedf9d4c0 RDI: 0000000040000000 [ 132.049340] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fffedf9d2d0 [ 132.050394] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f8474c90bf0 [ 132.051418] R13: 00007fffedf9d600 R14: 0000000000000000 R15: 00000000000000f8 [ 132.052470] [ 132.052816] irq event stamp: 12807 [ 132.053352] hardirqs last enabled at (12819): [] __up_console_sem+0x78/0x80 [ 132.054597] hardirqs last disabled at (12830): [] __up_console_sem+0x5d/0x80 [ 132.055832] softirqs last enabled at (12756): [] irq_exit_rcu+0x93/0xc0 [ 132.057020] softirqs last disabled at (12751): [] irq_exit_rcu+0x93/0xc0 [ 132.058220] ---[ end trace 0000000000000000 ]--- executing program [ 133.586942] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 135.634310] Bluetooth: hci0: command 0x041b tx timeout [ 137.682255] Bluetooth: hci0: command 0x040f tx timeout executing program [ 139.730226] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 22:06:30 Registers: info registers vcpu 0 RAX=0000000080000101 RBX=0000000000000000 RCX=ffffffff8186be7d RDX=ffffffff8542a780 RSI=0000000000000100 RDI=0000000000000001 RBP=ffff88800ef0e000 RSP=ffff88806ce09e40 R8 =0000000000000001 R9 =0000000000000000 R10=0000000000000000 R11=0000000000000001 R12=ffff88800f646700 R13=ffff88806ce09ee8 R14=ffff88806ce34fc0 R15=ffff88800ef0e000 RIP=ffffffff814be64b RFL=00000246 [---Z-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=00007f25b0719f28 CR3=000000000eae6000 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=6d674da4f7a498af6a4dc139086a45b0 XMM02=6b1e99b806172e3b00000000000aea28 XMM03=ac8bc31478ec851100000000000aefa0 XMM04=b2ac6b5baefd654e000000000014a6d8 XMM05=d3fdd5f48436fbd700000000000aead0 XMM06=77f9a52b66e72f7100000000000ae988 XMM07=a1fcdcf819d7e1e500000000000ae728 XMM08=44495f474f4c5359530069253d595449 XMM09=00000000000000000000000000000000 XMM10=00000000000000000020000000000000 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=ffff888016aaf5f0 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 0000555555b5e400 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=00007f7a261536f4 CR3=000000000ef6a000 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