[ 35.039859] sshd (210) used greatest stack depth: 24016 bytes left Debian GNU/Linux 11 syzkaller ttyS0 Warning: Permanently added '[localhost]:20689' (ECDSA) to the list of known hosts. 2023/05/17 00:17:42 fuzzer started 2023/05/17 00:17:43 dialing manager at localhost:35573 2023/05/17 00:17:43 checking machine... 2023/05/17 00:17:43 checking revisions... syzkaller login: [ 40.035525] kmemleak: Automatic memory scanning thread ended 2023/05/17 00:17:43 testing simple program... [ 40.107773] cgroup: Unknown subsys name 'net' [ 40.193847] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 53.795813] audit: type=1400 audit(1684282677.041:6): 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 executing program [ 54.896745] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 54.898172] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 54.900144] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 54.904259] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 54.905884] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 54.906976] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 55.313919] ------------[ cut here ]------------ [ 55.314609] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 55.316618] WARNING: CPU: 1 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 55.317833] Modules linked in: [ 55.318252] CPU: 1 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 55.323426] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 55.324823] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 55.325650] 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 20 24 e2 84 e8 6a cd d5 fc <0f> 0b 48 89 e8 48 c1 e8 03 42 0f b6 14 20 48 89 e8 83 e0 07 83 c0 [ 55.328323] RSP: 0018:ffff88801f11fc00 EFLAGS: 00010282 [ 55.329162] RAX: 0000000000000000 RBX: ffff88800ccb7040 RCX: 0000000000000000 [ 55.330245] RDX: ffff88801851d1c0 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 55.331350] RBP: ffff88800ccb7054 R08: 0000000000000001 R09: 0000000000000000 [ 55.332454] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 55.333297] R13: ffffffff84e223a0 R14: ffff88800ccb7048 R15: ffffffff84d73340 [ 55.334194] FS: 00005555569a8400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 55.335186] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.335938] CR2: 00007f8cc5b2b6f4 CR3: 000000000c56e000 CR4: 0000000000350ee0 [ 55.336819] Call Trace: [ 55.337146] [ 55.337469] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 55.338074] ipv4_frags_init_net+0x269/0x440 [ 55.338652] ops_init+0xbb/0x6b0 [ 55.339102] setup_net+0x3d9/0x990 [ 55.339580] ? down_read_killable+0x1d7/0x4e0 [ 55.340166] ? __pfx_setup_net+0x10/0x10 [ 55.340701] ? copy_net_ns+0x17c/0x770 [ 55.341199] copy_net_ns+0x321/0x770 [ 55.341704] create_new_namespaces+0x3f6/0xb30 [ 55.342282] unshare_nsproxy_namespaces+0xc1/0x200 [ 55.342922] ksys_unshare+0x44d/0x8e0 [ 55.343438] ? __pfx_ksys_unshare+0x10/0x10 [ 55.343987] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 55.344716] __x64_sys_unshare+0x31/0x40 [ 55.345234] do_syscall_64+0x3f/0x90 [ 55.345737] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 55.346402] RIP: 0033:0x7f36b9d130d7 [ 55.346865] 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 [ 55.349029] RSP: 002b:00007ffd01aa2f08 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 55.349956] RAX: ffffffffffffffda RBX: 00007ffd01aa3548 RCX: 00007f36b9d130d7 [ 55.350846] RDX: 00007f36b9d7d41f RSI: 00007ffd01aa2ea0 RDI: 0000000040000000 [ 55.351718] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd01aa2cb0 [ 55.352623] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f36b9e25bf0 [ 55.353526] R13: 00007ffd01aa2fe0 R14: 0000000000000000 R15: 00000000000000f8 [ 55.354459] [ 55.354763] irq event stamp: 8037 [ 55.355204] hardirqs last enabled at (8047): [] __up_console_sem+0x78/0x80 [ 55.356281] hardirqs last disabled at (8058): [] __up_console_sem+0x5d/0x80 [ 55.357361] softirqs last enabled at (7584): [] irq_exit_rcu+0x93/0xc0 [ 55.358415] softirqs last disabled at (7545): [] irq_exit_rcu+0x93/0xc0 [ 55.359433] ---[ end trace 0000000000000000 ]--- [ 55.364894] ------------[ cut here ]------------ [ 55.365532] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 55.367235] WARNING: CPU: 1 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 55.368507] Modules linked in: [ 55.368986] CPU: 1 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 55.370381] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 55.371581] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 55.372398] 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 20 24 e2 84 e8 6a cd d5 fc <0f> 0b 48 89 e8 48 c1 e8 03 42 0f b6 14 20 48 89 e8 83 e0 07 83 c0 [ 55.374945] RSP: 0018:ffff88801f11fc00 EFLAGS: 00010282 [ 55.375768] RAX: 0000000000000000 RBX: ffff88800dd33040 RCX: 0000000000000000 [ 55.376853] RDX: ffff88801851d1c0 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 55.377951] RBP: ffff88800dd33054 R08: 0000000000000001 R09: 0000000000000000 [ 55.379038] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 55.380139] R13: ffffffff84e223a0 R14: ffff88800dd33048 R15: ffffffff84da62e0 [ 55.381233] FS: 00005555569a8400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 55.382464] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.383371] CR2: 00007f8cc5b2b6f4 CR3: 000000000c56e000 CR4: 0000000000350ee0 [ 55.384497] Call Trace: [ 55.384903] [ 55.385270] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 55.386058] ipv6_frags_init_net+0x206/0x3c0 [ 55.386771] ops_init+0xbb/0x6b0 [ 55.387310] setup_net+0x3d9/0x990 [ 55.387923] ? down_read_killable+0x1d7/0x4e0 [ 55.388648] ? __pfx_setup_net+0x10/0x10 [ 55.389274] ? copy_net_ns+0x17c/0x770 [ 55.389934] copy_net_ns+0x321/0x770 [ 55.390554] create_new_namespaces+0x3f6/0xb30 [ 55.391268] unshare_nsproxy_namespaces+0xc1/0x200 [ 55.392074] ksys_unshare+0x44d/0x8e0 [ 55.392717] ? __pfx_ksys_unshare+0x10/0x10 [ 55.393411] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 55.394300] __x64_sys_unshare+0x31/0x40 [ 55.394972] do_syscall_64+0x3f/0x90 [ 55.395575] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 55.396413] RIP: 0033:0x7f36b9d130d7 [ 55.396981] 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 [ 55.399666] RSP: 002b:00007ffd01aa2f08 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 55.400847] RAX: ffffffffffffffda RBX: 00007ffd01aa3548 RCX: 00007f36b9d130d7 [ 55.401936] RDX: 00007f36b9d7d41f RSI: 00007ffd01aa2ea0 RDI: 0000000040000000 [ 55.403043] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd01aa2cb0 [ 55.404127] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f36b9e25bf0 [ 55.405212] R13: 00007ffd01aa2fe0 R14: 0000000000000000 R15: 00000000000000f8 [ 55.406353] [ 55.406729] irq event stamp: 9869 [ 55.407242] hardirqs last enabled at (9879): [] __up_console_sem+0x78/0x80 [ 55.408592] hardirqs last disabled at (9890): [] __up_console_sem+0x5d/0x80 [ 55.409893] softirqs last enabled at (9398): [] irq_exit_rcu+0x93/0xc0 [ 55.411152] softirqs last disabled at (9387): [] irq_exit_rcu+0x93/0xc0 [ 55.412411] ---[ end trace 0000000000000000 ]--- [ 55.413973] ------------[ cut here ]------------ [ 55.414707] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 55.416982] WARNING: CPU: 1 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 55.418261] Modules linked in: [ 55.418781] CPU: 1 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 55.420192] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 55.421424] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 55.422203] 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 20 24 e2 84 e8 6a cd d5 fc <0f> 0b 48 89 e8 48 c1 e8 03 42 0f b6 14 20 48 89 e8 83 e0 07 83 c0 [ 55.424867] RSP: 0018:ffff88801f11fbf0 EFLAGS: 00010286 [ 55.425694] RAX: 0000000000000000 RBX: ffff88800dd33640 RCX: 0000000000000000 [ 55.426761] RDX: ffff88801851d1c0 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 55.427840] RBP: ffff88800dd33654 R08: 0000000000000001 R09: 0000000000000000 [ 55.428924] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 55.429993] R13: ffffffff84e223a0 R14: ffff88800dd33648 R15: ffffffff84daf020 [ 55.431055] FS: 00005555569a8400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 55.432242] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.433124] CR2: 00007f8cc5b2b6f4 CR3: 000000000c56e000 CR4: 0000000000350ee0 [ 55.434176] Call Trace: [ 55.434588] [ 55.434945] nf_ct_net_init+0x224/0x3d0 [ 55.435579] ? __pfx_nf_ct_net_init+0x10/0x10 [ 55.436274] ops_init+0xbb/0x6b0 [ 55.436836] setup_net+0x3d9/0x990 [ 55.437414] ? down_read_killable+0x1d7/0x4e0 [ 55.438080] ? __pfx_setup_net+0x10/0x10 [ 55.438702] ? copy_net_ns+0x17c/0x770 [ 55.439291] copy_net_ns+0x321/0x770 [ 55.439895] create_new_namespaces+0x3f6/0xb30 [ 55.440649] unshare_nsproxy_namespaces+0xc1/0x200 [ 55.441421] ksys_unshare+0x44d/0x8e0 [ 55.442007] ? __pfx_ksys_unshare+0x10/0x10 [ 55.442706] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 55.443598] __x64_sys_unshare+0x31/0x40 [ 55.444216] do_syscall_64+0x3f/0x90 [ 55.444815] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 55.445592] RIP: 0033:0x7f36b9d130d7 [ 55.446128] 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 [ 55.448620] RSP: 002b:00007ffd01aa2f08 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 55.449741] RAX: ffffffffffffffda RBX: 00007ffd01aa3548 RCX: 00007f36b9d130d7 [ 55.450795] RDX: 00007f36b9d7d41f RSI: 00007ffd01aa2ea0 RDI: 0000000040000000 [ 55.451837] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd01aa2cb0 [ 55.452893] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f36b9e25bf0 [ 55.453952] R13: 00007ffd01aa2fe0 R14: 0000000000000000 R15: 00000000000000f8 [ 55.455030] [ 55.455413] irq event stamp: 10615 [ 55.455935] hardirqs last enabled at (10625): [] __up_console_sem+0x78/0x80 [ 55.457197] hardirqs last disabled at (10636): [] __up_console_sem+0x5d/0x80 [ 55.458461] softirqs last enabled at (10294): [] irq_exit_rcu+0x93/0xc0 [ 55.459684] softirqs last disabled at (10289): [] irq_exit_rcu+0x93/0xc0 [ 55.460924] ---[ end trace 0000000000000000 ]--- [ 56.919162] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 58.966805] Bluetooth: hci0: command 0x041b tx timeout executing program [ 61.014470] Bluetooth: hci0: command 0x040f tx timeout [ 63.063506] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 00:17:55 Registers: info registers vcpu 0 RAX=0000000000021ef5 RBX=0000000000000000 RCX=ffffffff844c4a0e RDX=0000000000000000 RSI=0000000000000000 RDI=ffffffff81288625 RBP=dffffc0000000000 RSP=ffffffff85407e10 R8 =0000000000000001 R9 =ffffed100d9c69f8 R10=ffff88806ce34fc3 R11=0000000000000001 R12=ffffffff85d34a10 R13=1ffffffff0a80fc7 R14=0000000000000000 R15=0000000000000000 RIP=ffffffff844c599f 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=00007f2fb1a3c028 CR3=000000000ea2c000 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=2038353a37313a30302037312079614d XMM01=5d3831363631332e35352020205b203a XMM02=74656e20746120383532203a44495020 XMM03=735f74656e5f72657473696765722035 XMM04=7379735f74656e5f7265747369676572 XMM05=732f74656e20746120383532203a4449 XMM06=57205d3831363631332e35352020205b XMM07=79732038353a37313a30302037312079 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=ffffffff82507685 RDI=ffffffff87f27c00 RBP=ffffffff87f27bc0 RSP=ffff88801f11f5f0 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000020 R11=0000000000000001 R12=0000000000000020 R13=ffffffff87f27bc0 R14=0000000000000010 R15=ffffffff82507670 RIP=ffffffff825076dd 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 00005555569a8400 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=00007f8cc5b2b6f4 CR3=000000000c56e000 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