Debian GNU/Linux 11 syzkaller ttyS0 syzkaller login: [ 34.941515] sshd (223) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:59267' (ECDSA) to the list of known hosts. 2023/05/17 21:23:54 fuzzer started 2023/05/17 21:23:54 dialing manager at localhost:44319 2023/05/17 21:23:54 checking machine... 2023/05/17 21:23:54 checking revisions... [ 36.130172] kmemleak: Automatic memory scanning thread ended 2023/05/17 21:23:54 testing simple program... [ 36.201200] cgroup: Unknown subsys name 'net' [ 36.271793] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 49.334395] audit: type=1400 audit(1684358648.167:6): 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 [ 50.476457] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 50.479082] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 50.480340] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 50.483074] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 50.484703] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 50.486695] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 50.866982] ------------[ cut here ]------------ [ 50.867777] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 50.869750] WARNING: CPU: 0 PID: 257 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 50.870870] Modules linked in: [ 50.871288] CPU: 0 PID: 257 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 50.875985] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 50.877089] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 50.877774] 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 [ 50.880075] RSP: 0018:ffff8880198d7c00 EFLAGS: 00010282 [ 50.880777] RAX: 0000000000000000 RBX: ffff88800eebc040 RCX: 0000000000000000 [ 50.881740] RDX: ffff888015c13680 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 50.882683] RBP: ffff88800eebc054 R08: 0000000000000001 R09: 0000000000000000 [ 50.883632] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 50.884561] R13: ffffffff84e23fe0 R14: ffff88800eebc048 R15: ffffffff84d74dc0 [ 50.885519] FS: 0000555556877400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 50.886580] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.887359] CR2: 00007fac409786f4 CR3: 000000000fe2a000 CR4: 0000000000350ef0 [ 50.888312] Call Trace: [ 50.888685] [ 50.889022] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 50.889659] ipv4_frags_init_net+0x269/0x440 [ 50.890286] ops_init+0xbb/0x6b0 [ 50.890760] setup_net+0x3d9/0x990 [ 50.891261] ? down_read_killable+0x1d7/0x4e0 [ 50.891887] ? __pfx_setup_net+0x10/0x10 [ 50.892431] ? copy_net_ns+0x17c/0x770 [ 50.892992] copy_net_ns+0x321/0x770 [ 50.893507] create_new_namespaces+0x3f6/0xb30 [ 50.894151] unshare_nsproxy_namespaces+0xc1/0x200 [ 50.894804] ksys_unshare+0x44d/0x8e0 [ 50.895351] ? __pfx_ksys_unshare+0x10/0x10 [ 50.895957] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 50.896721] __x64_sys_unshare+0x31/0x40 [ 50.897287] do_syscall_64+0x3f/0x90 [ 50.897792] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 50.898510] RIP: 0033:0x7fd5033ee0d7 [ 50.899024] 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 [ 50.901364] RSP: 002b:00007ffeeed34f58 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 50.902353] RAX: ffffffffffffffda RBX: 00007ffeeed35598 RCX: 00007fd5033ee0d7 [ 50.903280] RDX: 00007fd50345841f RSI: 00007ffeeed34ef0 RDI: 0000000040000000 [ 50.904204] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffeeed34d00 [ 50.905151] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fd503500bf0 [ 50.906101] R13: 00007ffeeed35030 R14: 0000000000000000 R15: 00000000000000f8 [ 50.907075] [ 50.907390] irq event stamp: 8261 [ 50.907872] hardirqs last enabled at (8273): [] __up_console_sem+0x78/0x80 [ 50.909011] hardirqs last disabled at (8284): [] __up_console_sem+0x5d/0x80 [ 50.910134] softirqs last enabled at (7750): [] irq_exit_rcu+0x93/0xc0 [ 50.911218] softirqs last disabled at (7745): [] irq_exit_rcu+0x93/0xc0 [ 50.912292] ---[ end trace 0000000000000000 ]--- [ 50.917509] ------------[ cut here ]------------ [ 50.918259] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 50.919995] WARNING: CPU: 0 PID: 257 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 50.921110] Modules linked in: [ 50.921533] CPU: 0 PID: 257 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 50.922766] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 50.923855] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 50.924542] 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 [ 50.926868] RSP: 0018:ffff8880198d7c00 EFLAGS: 00010282 [ 50.927562] RAX: 0000000000000000 RBX: ffff88800d701e40 RCX: 0000000000000000 [ 50.928532] RDX: ffff888015c13680 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 50.929490] RBP: ffff88800d701e54 R08: 0000000000000001 R09: 0000000000000000 [ 50.930434] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 50.931367] R13: ffffffff84e23fe0 R14: ffff88800d701e48 R15: ffffffff84da7d60 [ 50.932313] FS: 0000555556877400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 50.933378] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.934165] CR2: 00007fac409786f4 CR3: 000000000fe2a000 CR4: 0000000000350ef0 [ 50.935125] Call Trace: [ 50.935474] [ 50.935784] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 50.936489] ipv6_frags_init_net+0x206/0x3c0 [ 50.937107] ops_init+0xbb/0x6b0 [ 50.937580] setup_net+0x3d9/0x990 [ 50.938098] ? down_read_killable+0x1d7/0x4e0 [ 50.938699] ? __pfx_setup_net+0x10/0x10 [ 50.939262] ? copy_net_ns+0x17c/0x770 [ 50.939800] copy_net_ns+0x321/0x770 [ 50.940348] create_new_namespaces+0x3f6/0xb30 [ 50.941011] unshare_nsproxy_namespaces+0xc1/0x200 [ 50.941654] ksys_unshare+0x44d/0x8e0 [ 50.942204] ? __pfx_ksys_unshare+0x10/0x10 [ 50.942782] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 50.943561] __x64_sys_unshare+0x31/0x40 [ 50.944137] do_syscall_64+0x3f/0x90 [ 50.944654] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 50.945366] RIP: 0033:0x7fd5033ee0d7 [ 50.945891] 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 [ 50.948197] RSP: 002b:00007ffeeed34f58 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 50.949207] RAX: ffffffffffffffda RBX: 00007ffeeed35598 RCX: 00007fd5033ee0d7 [ 50.950155] RDX: 00007fd50345841f RSI: 00007ffeeed34ef0 RDI: 0000000040000000 [ 50.951097] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffeeed34d00 [ 50.952047] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fd503500bf0 [ 50.952968] R13: 00007ffeeed35030 R14: 0000000000000000 R15: 00000000000000f8 [ 50.953878] [ 50.954180] irq event stamp: 10119 [ 50.954608] hardirqs last enabled at (10129): [] __up_console_sem+0x78/0x80 [ 50.955666] hardirqs last disabled at (10140): [] __up_console_sem+0x5d/0x80 [ 50.956749] softirqs last enabled at (9656): [] irq_exit_rcu+0x93/0xc0 [ 50.957767] softirqs last disabled at (9651): [] irq_exit_rcu+0x93/0xc0 [ 50.958784] ---[ end trace 0000000000000000 ]--- [ 50.960139] ------------[ cut here ]------------ [ 50.960731] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 50.962578] WARNING: CPU: 0 PID: 257 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 50.963639] Modules linked in: [ 50.964075] CPU: 0 PID: 257 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 50.965253] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 50.966272] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 50.966943] 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 [ 50.969121] RSP: 0018:ffff8880198d7bf0 EFLAGS: 00010286 [ 50.969772] RAX: 0000000000000000 RBX: ffff88800d700640 RCX: 0000000000000000 [ 50.970656] RDX: ffff888015c13680 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 50.971533] RBP: ffff88800d700654 R08: 0000000000000001 R09: 0000000000000000 [ 50.972435] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 50.973318] R13: ffffffff84e23fe0 R14: ffff88800d700648 R15: ffffffff84db0aa0 [ 50.974201] FS: 0000555556877400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 50.975176] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.975930] CR2: 00007fac409786f4 CR3: 000000000fe2a000 CR4: 0000000000350ef0 [ 50.976787] Call Trace: [ 50.977145] [ 50.977443] nf_ct_net_init+0x224/0x3d0 [ 50.977984] ? __pfx_nf_ct_net_init+0x10/0x10 [ 50.978567] ops_init+0xbb/0x6b0 [ 50.979040] setup_net+0x3d9/0x990 [ 50.979491] ? down_read_killable+0x1d7/0x4e0 [ 50.980087] ? __pfx_setup_net+0x10/0x10 [ 50.980608] ? copy_net_ns+0x17c/0x770 [ 50.981146] copy_net_ns+0x321/0x770 [ 50.981636] create_new_namespaces+0x3f6/0xb30 [ 50.982250] unshare_nsproxy_namespaces+0xc1/0x200 [ 50.982897] ksys_unshare+0x44d/0x8e0 [ 50.983390] ? __pfx_ksys_unshare+0x10/0x10 [ 50.983957] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 50.984688] __x64_sys_unshare+0x31/0x40 [ 50.985239] do_syscall_64+0x3f/0x90 [ 50.985716] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 50.986393] RIP: 0033:0x7fd5033ee0d7 [ 50.986887] 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 [ 50.989041] RSP: 002b:00007ffeeed34f58 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 50.989977] RAX: ffffffffffffffda RBX: 00007ffeeed35598 RCX: 00007fd5033ee0d7 [ 50.990858] RDX: 00007fd50345841f RSI: 00007ffeeed34ef0 RDI: 0000000040000000 [ 50.991713] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffeeed34d00 [ 50.992619] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fd503500bf0 [ 50.993528] R13: 00007ffeeed35030 R14: 0000000000000000 R15: 00000000000000f8 [ 50.994433] [ 50.994731] irq event stamp: 10889 [ 50.995199] hardirqs last enabled at (10901): [] __up_console_sem+0x78/0x80 [ 50.996251] hardirqs last disabled at (10912): [] __up_console_sem+0x5d/0x80 executing program [ 50.997325] softirqs last enabled at (10750): [] irq_exit_rcu+0x93/0xc0 [ 50.999178] softirqs last disabled at (10935): [] irq_exit_rcu+0x93/0xc0 [ 51.000232] ---[ end trace 0000000000000000 ]--- [ 52.565502] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 54.612970] Bluetooth: hci0: command 0x041b tx timeout [ 56.660972] Bluetooth: hci0: command 0x040f tx timeout executing program [ 58.708919] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 21:24:09 Registers: info registers vcpu 0 RAX=000000000000006f RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507f85 RDI=ffffffff87f2dc00 RBP=ffffffff87f2dbc0 RSP=ffff8880198d75f0 R8 =0000000000000001 R9 =000000000000000a R10=000000000000006f R11=0000000000000001 R12=000000000000006f 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 0000555556877400 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=00007fac409786f4 CR3=000000000fe2a000 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=000000000002e4f5 RBX=0000000000000001 RCX=ffffffff844d0a0e RDX=0000000000000000 RSI=0000000000000000 RDI=ffffffff81287415 RBP=dffffc0000000000 RSP=ffff888008dcfe70 R8 =0000000000000001 R9 =ffffed100d9e69f8 R10=ffff88806cf34fc3 R11=0000000000000001 R12=ffffffff85d35a10 R13=1ffff110011b9fd3 R14=0000000000000000 R15=0000000000000000 RIP=ffffffff844d199f 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=00007f536c0b90d0 CR3=000000000f500000 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=dd82fb3495b37496c44435817f1636af XMM02=6b1e99b806172e3b00000000000aea28 XMM03=ac8bc31478ec851100000000000aefa0 XMM04=ccc119146651929e000000000013c478 XMM05=d3fdd5f48436fbd700000000000aead0 XMM06=eff3a1ea9115002600000000000ae988 XMM07=a1fcdcf819d7e1e500000000000ae728 XMM08=44495f474f4c5359530069253d595449 XMM09=00000000000000000000000000000000 XMM10=00200000000000000020000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000