Debian GNU/Linux 11 syzkaller ttyS0 syzkaller login: [ 36.607772] sshd (230) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:52296' (ECDSA) to the list of known hosts. 2023/05/17 17:04:23 fuzzer started 2023/05/17 17:04:24 dialing manager at localhost:44319 2023/05/17 17:04:24 checking machine... 2023/05/17 17:04:24 checking revisions... [ 37.821191] kmemleak: Automatic memory scanning thread ended 2023/05/17 17:04:24 testing simple program... [ 37.896582] cgroup: Unknown subsys name 'net' [ 37.973040] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 50.928495] audit: type=1400 audit(1684343077.363:6): avc: denied { execmem } for pid=263 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 52.099200] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 52.100890] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 52.103155] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 52.107190] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 52.108934] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 52.110292] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 52.537196] ------------[ cut here ]------------ [ 52.538026] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 52.540093] WARNING: CPU: 1 PID: 264 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 52.541278] Modules linked in: [ 52.541750] CPU: 1 PID: 264 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 52.543942] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 52.546126] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 52.547466] 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 [ 52.549765] RSP: 0018:ffff888017a9fc00 EFLAGS: 00010282 [ 52.550462] RAX: 0000000000000000 RBX: ffff88800f37bc40 RCX: 0000000000000000 [ 52.551439] RDX: ffff88801928d1c0 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 52.552448] RBP: ffff88800f37bc54 R08: 0000000000000001 R09: 0000000000000000 [ 52.553515] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 52.554575] R13: ffffffff84e23fe0 R14: ffff88800f37bc48 R15: ffffffff84d74dc0 [ 52.555659] FS: 00005555574ea400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 52.556852] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.557696] CR2: 00007f3ed86676f4 CR3: 0000000016966000 CR4: 0000000000350ee0 [ 52.558794] Call Trace: [ 52.559206] [ 52.559561] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 52.560348] ipv4_frags_init_net+0x269/0x440 [ 52.561052] ops_init+0xbb/0x6b0 [ 52.561589] setup_net+0x3d9/0x990 [ 52.562177] ? down_read_killable+0x1d7/0x4e0 [ 52.562890] ? __pfx_setup_net+0x10/0x10 [ 52.563513] ? copy_net_ns+0x17c/0x770 [ 52.564166] copy_net_ns+0x321/0x770 [ 52.564781] create_new_namespaces+0x3f6/0xb30 [ 52.565476] unshare_nsproxy_namespaces+0xc1/0x200 [ 52.566270] ksys_unshare+0x44d/0x8e0 [ 52.566894] ? __pfx_ksys_unshare+0x10/0x10 [ 52.567574] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 52.568470] __x64_sys_unshare+0x31/0x40 [ 52.569117] do_syscall_64+0x3f/0x90 [ 52.569689] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 52.570479] RIP: 0033:0x7fa3b38720d7 [ 52.571053] 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 [ 52.573560] RSP: 002b:00007fffbea78f08 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 52.574685] RAX: ffffffffffffffda RBX: 00007fffbea79548 RCX: 00007fa3b38720d7 [ 52.575759] RDX: 00007fa3b38dc41f RSI: 00007fffbea78ea0 RDI: 0000000040000000 [ 52.576781] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fffbea78cb0 [ 52.577804] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fa3b3984bf0 [ 52.578853] R13: 00007fffbea78fe0 R14: 0000000000000000 R15: 00000000000000f8 [ 52.579942] [ 52.580297] irq event stamp: 10609 [ 52.580867] hardirqs last enabled at (10621): [] __up_console_sem+0x78/0x80 [ 52.582191] hardirqs last disabled at (10632): [] __up_console_sem+0x5d/0x80 [ 52.583510] softirqs last enabled at (10420): [] irq_exit_rcu+0x93/0xc0 [ 52.584733] softirqs last disabled at (10415): [] irq_exit_rcu+0x93/0xc0 [ 52.585906] ---[ end trace 0000000000000000 ]--- [ 52.591674] ------------[ cut here ]------------ [ 52.592412] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 52.594367] WARNING: CPU: 1 PID: 264 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 52.595669] Modules linked in: [ 52.596199] CPU: 1 PID: 264 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 52.597616] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 52.598846] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 52.599637] 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 [ 52.602289] RSP: 0018:ffff888017a9fc00 EFLAGS: 00010282 [ 52.603104] RAX: 0000000000000000 RBX: ffff888016555c40 RCX: 0000000000000000 [ 52.604218] RDX: ffff88801928d1c0 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 52.605296] RBP: ffff888016555c54 R08: 0000000000000001 R09: 0000000000000000 [ 52.606366] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 52.607480] R13: ffffffff84e23fe0 R14: ffff888016555c48 R15: ffffffff84da7d60 [ 52.608566] FS: 00005555574ea400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 52.609780] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.610645] CR2: 00007f3ed86676f4 CR3: 0000000016966000 CR4: 0000000000350ee0 [ 52.611749] Call Trace: [ 52.612149] [ 52.612500] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 52.613277] ipv6_frags_init_net+0x206/0x3c0 [ 52.613987] ops_init+0xbb/0x6b0 [ 52.614529] setup_net+0x3d9/0x990 [ 52.615103] ? down_read_killable+0x1d7/0x4e0 [ 52.615845] ? __pfx_setup_net+0x10/0x10 [ 52.616456] ? copy_net_ns+0x17c/0x770 [ 52.617095] copy_net_ns+0x321/0x770 [ 52.617662] create_new_namespaces+0x3f6/0xb30 [ 52.618351] unshare_nsproxy_namespaces+0xc1/0x200 [ 52.619077] ksys_unshare+0x44d/0x8e0 [ 52.619639] ? __pfx_ksys_unshare+0x10/0x10 [ 52.620280] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 52.621106] __x64_sys_unshare+0x31/0x40 [ 52.621677] do_syscall_64+0x3f/0x90 [ 52.622241] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 52.622991] RIP: 0033:0x7fa3b38720d7 [ 52.623512] 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 [ 52.625910] RSP: 002b:00007fffbea78f08 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 52.626963] RAX: ffffffffffffffda RBX: 00007fffbea79548 RCX: 00007fa3b38720d7 [ 52.627978] RDX: 00007fa3b38dc41f RSI: 00007fffbea78ea0 RDI: 0000000040000000 [ 52.628984] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fffbea78cb0 [ 52.629976] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fa3b3984bf0 [ 52.630967] R13: 00007fffbea78fe0 R14: 0000000000000000 R15: 00000000000000f8 [ 52.632015] [ 52.632349] irq event stamp: 12283 [ 52.632860] hardirqs last enabled at (12295): [] __up_console_sem+0x78/0x80 [ 52.634039] hardirqs last disabled at (12306): [] __up_console_sem+0x5d/0x80 [ 52.635244] softirqs last enabled at (12232): [] irq_exit_rcu+0x93/0xc0 [ 52.636390] softirqs last disabled at (12227): [] irq_exit_rcu+0x93/0xc0 [ 52.637538] ---[ end trace 0000000000000000 ]--- [ 52.639114] ------------[ cut here ]------------ [ 52.639882] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 52.642008] WARNING: CPU: 1 PID: 264 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 52.643188] Modules linked in: [ 52.643637] CPU: 1 PID: 264 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 52.644906] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 52.646023] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 52.646778] 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 [ 52.649193] RSP: 0018:ffff888017a9fbf0 EFLAGS: 00010286 [ 52.649951] RAX: 0000000000000000 RBX: ffff888016554440 RCX: 0000000000000000 [ 52.650932] RDX: ffff88801928d1c0 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 52.651945] RBP: ffff888016554454 R08: 0000000000000001 R09: 0000000000000000 [ 52.652936] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 52.653925] R13: ffffffff84e23fe0 R14: ffff888016554448 R15: ffffffff84db0aa0 [ 52.654910] FS: 00005555574ea400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 52.656032] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.656851] CR2: 00007f3ed86676f4 CR3: 0000000016966000 CR4: 0000000000350ee0 [ 52.657840] Call Trace: [ 52.658202] [ 52.658535] nf_ct_net_init+0x224/0x3d0 [ 52.659164] ? __pfx_nf_ct_net_init+0x10/0x10 [ 52.659840] ops_init+0xbb/0x6b0 [ 52.660341] setup_net+0x3d9/0x990 [ 52.660892] ? down_read_killable+0x1d7/0x4e0 [ 52.661522] ? __pfx_setup_net+0x10/0x10 [ 52.662125] ? copy_net_ns+0x17c/0x770 [ 52.662688] copy_net_ns+0x321/0x770 [ 52.663269] create_new_namespaces+0x3f6/0xb30 [ 52.663950] unshare_nsproxy_namespaces+0xc1/0x200 [ 52.664633] ksys_unshare+0x44d/0x8e0 [ 52.665204] ? __pfx_ksys_unshare+0x10/0x10 [ 52.665834] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 52.666619] __x64_sys_unshare+0x31/0x40 [ 52.667236] do_syscall_64+0x3f/0x90 [ 52.667798] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 52.668516] RIP: 0033:0x7fa3b38720d7 executing program [ 52.669070] 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 [ 52.671682] RSP: 002b:00007fffbea78f08 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 52.672687] RAX: ffffffffffffffda RBX: 00007fffbea79548 RCX: 00007fa3b38720d7 [ 52.673631] RDX: 00007fa3b38dc41f RSI: 00007fffbea78ea0 RDI: 0000000040000000 [ 52.674590] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fffbea78cb0 [ 52.675561] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fa3b3984bf0 [ 52.676543] R13: 00007fffbea78fe0 R14: 0000000000000000 R15: 00000000000000f8 [ 52.677526] [ 52.677897] irq event stamp: 13097 [ 52.678373] hardirqs last enabled at (13107): [] __up_console_sem+0x78/0x80 [ 52.679546] hardirqs last disabled at (13118): [] __up_console_sem+0x5d/0x80 [ 52.680718] softirqs last enabled at (12572): [] irq_exit_rcu+0x93/0xc0 [ 52.681837] softirqs last disabled at (12549): [] irq_exit_rcu+0x93/0xc0 [ 52.682941] ---[ end trace 0000000000000000 ]--- [ 54.179437] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 56.226830] Bluetooth: hci0: command 0x041b tx timeout [ 58.274784] Bluetooth: hci0: command 0x040f tx timeout executing program [ 60.322792] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 17:04:36 Registers: info registers vcpu 0 RAX=000000000002d1dd 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=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 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=00007f62380370c8 CR3=000000000e99c000 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=2038333a34303a37312037312079614d XMM01=5d3035373134352e32352020205b203a XMM02=75636578652d7a7973203a6d6d6f4320 XMM03=20202020202020572020202020202020 XMM04=6e2d3263722d302e342e362020202020 XMM05=3a6465746e69615420302e726f747563 XMM06=32203a4449502031203a555043205d30 XMM07=6e72656b2072656c6c616b7a79732038 XMM08=7475636578652d7a7973223d6d6d6f63 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000000000052 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507f85 RDI=ffffffff87f2dc00 RBP=ffffffff87f2dbc0 RSP=ffff888017a9f5e0 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000052 R11=0000000000000001 R12=0000000000000052 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 00005555574ea400 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=00007f3ed86676f4 CR3=0000000016966000 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