[ 32.428738] sshd (209) used greatest stack depth: 24016 bytes left Debian GNU/Linux 11 syzkaller ttyS0 Warning: Permanently added '[localhost]:46765' (ECDSA) to the list of known hosts. 2023/05/18 10:44:10 fuzzer started 2023/05/18 10:44:10 dialing manager at localhost:44319 2023/05/18 10:44:10 checking machine... 2023/05/18 10:44:10 checking revisions... syzkaller login: [ 37.069772] kmemleak: Automatic memory scanning thread ended 2023/05/18 10:44:10 testing simple program... [ 37.134458] cgroup: Unknown subsys name 'net' [ 37.222409] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 50.313832] audit: type=1400 audit(1684406663.785:6): 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 [ 51.430581] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 51.431891] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 51.434294] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 51.437135] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 51.438718] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 51.439789] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 51.835445] ------------[ cut here ]------------ [ 51.836760] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 51.838793] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 51.840154] Modules linked in: [ 51.840676] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 51.845645] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 51.846784] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 51.847567] 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 [ 51.850016] RSP: 0018:ffff88800cf6fc00 EFLAGS: 00010282 [ 51.850781] RAX: 0000000000000000 RBX: ffff88800e11fc40 RCX: 0000000000000000 [ 51.851791] RDX: ffff88801a030000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 51.852764] RBP: ffff88800e11fc54 R08: 0000000000000001 R09: 0000000000000000 [ 51.853730] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 51.854695] R13: ffffffff84e23fe0 R14: ffff88800e11fc48 R15: ffffffff84d74dc0 [ 51.855679] FS: 0000555555ff9400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 51.856773] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.857584] CR2: 00007f27f71866f4 CR3: 000000000fbc8000 CR4: 0000000000350ee0 [ 51.858549] Call Trace: [ 51.858906] [ 51.859261] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 51.859943] ipv4_frags_init_net+0x269/0x440 [ 51.860586] ops_init+0xbb/0x6b0 [ 51.861109] setup_net+0x3d9/0x990 [ 51.861609] ? down_read_killable+0x1d7/0x4e0 [ 51.862260] ? __pfx_setup_net+0x10/0x10 [ 51.862818] ? copy_net_ns+0x17c/0x770 [ 51.863405] copy_net_ns+0x321/0x770 [ 51.863960] create_new_namespaces+0x3f6/0xb30 [ 51.864633] unshare_nsproxy_namespaces+0xc1/0x200 [ 51.865337] ksys_unshare+0x44d/0x8e0 [ 51.865875] ? __pfx_ksys_unshare+0x10/0x10 [ 51.866508] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 51.867319] __x64_sys_unshare+0x31/0x40 [ 51.867895] do_syscall_64+0x3f/0x90 [ 51.868457] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 51.869192] RIP: 0033:0x7f34610360d7 [ 51.869699] 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 [ 51.872093] RSP: 002b:00007ffc0f427c68 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 51.873136] RAX: ffffffffffffffda RBX: 00007ffc0f4282a8 RCX: 00007f34610360d7 [ 51.874106] RDX: 00007f34610a041f RSI: 00007ffc0f427c00 RDI: 0000000040000000 [ 51.875039] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffc0f427a10 [ 51.876025] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f3461148bf0 [ 51.876990] R13: 00007ffc0f427d40 R14: 0000000000000000 R15: 00000000000000f8 [ 51.877986] [ 51.878339] irq event stamp: 9135 [ 51.878799] hardirqs last enabled at (9145): [] __up_console_sem+0x78/0x80 [ 51.879960] hardirqs last disabled at (9156): [] __up_console_sem+0x5d/0x80 [ 51.881121] softirqs last enabled at (8668): [] irq_exit_rcu+0x93/0xc0 [ 51.882244] softirqs last disabled at (8641): [] irq_exit_rcu+0x93/0xc0 [ 51.883359] ---[ end trace 0000000000000000 ]--- [ 51.889250] ------------[ cut here ]------------ [ 51.889903] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 51.891786] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 51.892955] Modules linked in: [ 51.893424] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 51.894691] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 51.895820] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 51.896559] 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 [ 51.898944] RSP: 0018:ffff88800cf6fc00 EFLAGS: 00010282 [ 51.899695] RAX: 0000000000000000 RBX: ffff88800df29c40 RCX: 0000000000000000 [ 51.900667] RDX: ffff88801a030000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 51.901631] RBP: ffff88800df29c54 R08: 0000000000000001 R09: 0000000000000000 [ 51.902609] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 51.903604] R13: ffffffff84e23fe0 R14: ffff88800df29c48 R15: ffffffff84da7d60 [ 51.904579] FS: 0000555555ff9400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 51.905671] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.906476] CR2: 00007f27f71866f4 CR3: 000000000fbc8000 CR4: 0000000000350ee0 [ 51.907450] Call Trace: [ 51.907826] [ 51.908180] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 51.908848] ipv6_frags_init_net+0x206/0x3c0 [ 51.909492] ops_init+0xbb/0x6b0 [ 51.909982] setup_net+0x3d9/0x990 [ 51.910514] ? down_read_killable+0x1d7/0x4e0 [ 51.911174] ? __pfx_setup_net+0x10/0x10 [ 51.911751] ? copy_net_ns+0x17c/0x770 [ 51.912341] copy_net_ns+0x321/0x770 [ 51.912870] create_new_namespaces+0x3f6/0xb30 [ 51.913539] unshare_nsproxy_namespaces+0xc1/0x200 [ 51.914247] ksys_unshare+0x44d/0x8e0 [ 51.914788] ? __pfx_ksys_unshare+0x10/0x10 [ 51.915418] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 51.916236] __x64_sys_unshare+0x31/0x40 [ 51.916804] do_syscall_64+0x3f/0x90 [ 51.917371] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 51.918107] RIP: 0033:0x7f34610360d7 [ 51.918619] 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 [ 51.921031] RSP: 002b:00007ffc0f427c68 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 51.922093] RAX: ffffffffffffffda RBX: 00007ffc0f4282a8 RCX: 00007f34610360d7 [ 51.923027] RDX: 00007f34610a041f RSI: 00007ffc0f427c00 RDI: 0000000040000000 [ 51.924028] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffc0f427a10 [ 51.925003] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f3461148bf0 [ 51.925969] R13: 00007ffc0f427d40 R14: 0000000000000000 R15: 00000000000000f8 [ 51.926966] [ 51.927327] irq event stamp: 11027 [ 51.927818] hardirqs last enabled at (11037): [] __up_console_sem+0x78/0x80 [ 51.929006] hardirqs last disabled at (11048): [] __up_console_sem+0x5d/0x80 executing program [ 51.930189] softirqs last enabled at (10932): [] irq_exit_rcu+0x93/0xc0 [ 51.931546] softirqs last disabled at (10927): [] irq_exit_rcu+0x93/0xc0 [ 51.932680] ---[ end trace 0000000000000000 ]--- [ 51.934390] ------------[ cut here ]------------ [ 51.935028] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 51.937184] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 51.938343] Modules linked in: [ 51.938788] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 51.940081] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 51.941186] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 51.941889] 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 [ 51.944283] RSP: 0018:ffff88800cf6fbf0 EFLAGS: 00010286 [ 51.944992] RAX: 0000000000000000 RBX: ffff8880164f7c40 RCX: 0000000000000000 [ 51.945972] RDX: ffff88801a030000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 51.946940] RBP: ffff8880164f7c54 R08: 0000000000000001 R09: 0000000000000000 [ 51.947922] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 51.948905] R13: ffffffff84e23fe0 R14: ffff8880164f7c48 R15: ffffffff84db0aa0 [ 51.949875] FS: 0000555555ff9400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 51.950964] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.951801] CR2: 00007f27f71866f4 CR3: 000000000fbc8000 CR4: 0000000000350ee0 [ 51.952760] Call Trace: [ 51.953147] [ 51.953478] nf_ct_net_init+0x224/0x3d0 [ 51.954042] ? __pfx_nf_ct_net_init+0x10/0x10 [ 51.954719] ops_init+0xbb/0x6b0 [ 51.955237] setup_net+0x3d9/0x990 [ 51.955745] ? down_read_killable+0x1d7/0x4e0 [ 51.956397] ? __pfx_setup_net+0x10/0x10 [ 51.956962] ? copy_net_ns+0x17c/0x770 [ 51.957550] copy_net_ns+0x321/0x770 [ 51.958112] create_new_namespaces+0x3f6/0xb30 [ 51.958755] unshare_nsproxy_namespaces+0xc1/0x200 [ 51.959456] ksys_unshare+0x44d/0x8e0 [ 51.960019] ? __pfx_ksys_unshare+0x10/0x10 [ 51.960648] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 51.961453] __x64_sys_unshare+0x31/0x40 [ 51.962016] do_syscall_64+0x3f/0x90 [ 51.962571] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 51.963310] RIP: 0033:0x7f34610360d7 [ 51.963829] 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 [ 51.966202] RSP: 002b:00007ffc0f427c68 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 51.967233] RAX: ffffffffffffffda RBX: 00007ffc0f4282a8 RCX: 00007f34610360d7 [ 51.968234] RDX: 00007f34610a041f RSI: 00007ffc0f427c00 RDI: 0000000040000000 [ 51.969199] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffc0f427a10 [ 51.970153] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f3461148bf0 [ 51.971117] R13: 00007ffc0f427d40 R14: 0000000000000000 R15: 00000000000000f8 [ 51.972128] [ 51.972453] irq event stamp: 11807 [ 51.972927] hardirqs last enabled at (11817): [] __up_console_sem+0x78/0x80 [ 51.974109] hardirqs last disabled at (11828): [] __up_console_sem+0x5d/0x80 [ 51.975269] softirqs last enabled at (11530): [] irq_exit_rcu+0x93/0xc0 [ 51.976411] softirqs last disabled at (11525): [] irq_exit_rcu+0x93/0xc0 [ 51.977537] ---[ end trace 0000000000000000 ]--- [ 53.456781] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 55.504143] Bluetooth: hci0: command 0x041b tx timeout [ 57.552136] Bluetooth: hci0: command 0x040f tx timeout executing program [ 59.600120] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 10:44:24 Registers: info registers vcpu 0 RAX=0000000080000101 RBX=ffffffff85652520 RCX=0000000080000101 RDX=ffffffff8542a780 RSI=ffffffff814c628f RDI=0000000000000001 RBP=0000000000000001 RSP=ffff88806ce09a28 R8 =0000000000000001 R9 =0000000000000000 R10=0000000000000001 R11=0000000000000001 R12=ffffffff86613f9f R13=0000000000000000 R14=ffffffff8542a780 R15=ffff88801693c1b0 RIP=ffffffff814be651 RFL=00000202 [-------] 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=00007fba8c0d6a50 CR3=000000000f262000 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=2035323a34343a30312038312079614d XMM01=5d3637363034382e31352020205b203a XMM02=75636578652d7a7973203a6d6d6f4320 XMM03=20202020202020572020202020202020 XMM04=6e2d3263722d302e342e362020202020 XMM05=3a6465746e69615420302e726f747563 XMM06=32203a4449502031203a555043205d36 XMM07=6e72656b2072656c6c616b7a79732035 XMM08=7475636578652d7a7973223d6d6d6f63 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=dffffc0000000060 RBX=00000000000003fd RCX=0000000000000000 RDX=00000000000003fd RSI=ffffffff82507ef0 RDI=ffffffff87f2dc00 RBP=ffffffff87f2dbc0 RSP=ffff88800cf6f598 R8 =0000000000000004 R9 =0000000000000010 R10=0000000000000010 R11=0000000000000001 R12=0000000000002710 R13=0000000000000020 R14=fffffbfff0fe5bd1 R15=dffffc0000000000 RIP=ffffffff82507f45 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 0000555555ff9400 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=00007f27f71866f4 CR3=000000000fbc8000 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