syzkaller login: [ 31.346800] sshd (210) used greatest stack depth: 24168 bytes left Warning: Permanently added '[localhost]:32621' (ECDSA) to the list of known hosts. 2023/05/18 04:44:53 fuzzer started 2023/05/18 04:44:53 dialing manager at localhost:44319 2023/05/18 04:44:53 checking machine... 2023/05/18 04:44:53 checking revisions... [ 36.221426] kmemleak: Automatic memory scanning thread ended 2023/05/18 04:44:53 testing simple program... [ 36.291020] cgroup: Unknown subsys name 'net' [ 36.394987] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 48.816332] audit: type=1400 audit(1684385106.272:6): 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 [ 49.955367] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 49.957060] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 49.959746] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 49.962297] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 49.964079] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 49.965512] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 50.351505] ------------[ cut here ]------------ [ 50.352335] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 50.354259] WARNING: CPU: 0 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 50.355569] Modules linked in: [ 50.356103] CPU: 0 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 50.360706] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 50.361876] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 50.362681] 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 [ 50.364897] RSP: 0018:ffff888016d6fc00 EFLAGS: 00010282 [ 50.365602] RAX: 0000000000000000 RBX: ffff888015b1f040 RCX: 0000000000000000 [ 50.366504] RDX: ffff88800f5a8000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 50.367397] RBP: ffff888015b1f054 R08: 0000000000000001 R09: 0000000000000000 [ 50.368311] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 50.369207] R13: ffffffff84e23fe0 R14: ffff888015b1f048 R15: ffffffff84d74dc0 [ 50.370075] FS: 0000555556d63400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 50.371077] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.371828] CR2: 00007ffb041b66f4 CR3: 000000000ea64000 CR4: 0000000000350ef0 [ 50.372725] Call Trace: [ 50.373050] [ 50.373375] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 50.373988] ipv4_frags_init_net+0x269/0x440 [ 50.374576] ops_init+0xbb/0x6b0 [ 50.375033] setup_net+0x3d9/0x990 [ 50.375515] ? down_read_killable+0x1d7/0x4e0 [ 50.376118] ? __pfx_setup_net+0x10/0x10 [ 50.376663] ? copy_net_ns+0x17c/0x770 [ 50.377204] copy_net_ns+0x321/0x770 [ 50.377693] create_new_namespaces+0x3f6/0xb30 [ 50.378305] unshare_nsproxy_namespaces+0xc1/0x200 [ 50.378921] ksys_unshare+0x44d/0x8e0 [ 50.379447] ? __pfx_ksys_unshare+0x10/0x10 [ 50.379999] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 50.380755] __x64_sys_unshare+0x31/0x40 [ 50.381306] do_syscall_64+0x3f/0x90 [ 50.381790] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 50.382467] RIP: 0033:0x7f0f875ca0d7 [ 50.382934] 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 [ 50.385104] RSP: 002b:00007ffef608fea8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 50.386069] RAX: ffffffffffffffda RBX: 00007ffef60904e8 RCX: 00007f0f875ca0d7 [ 50.386964] RDX: 00007f0f8763441f RSI: 00007ffef608fe40 RDI: 0000000040000000 [ 50.387870] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffef608fc50 [ 50.388774] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f0f876dcbf0 [ 50.389666] R13: 00007ffef608ff80 R14: 0000000000000000 R15: 00000000000000f8 [ 50.390625] [ 50.390937] irq event stamp: 8191 [ 50.391410] hardirqs last enabled at (8203): [] __up_console_sem+0x78/0x80 [ 50.392528] hardirqs last disabled at (8214): [] __up_console_sem+0x5d/0x80 [ 50.393639] softirqs last enabled at (7752): [] irq_exit_rcu+0x93/0xc0 [ 50.394719] softirqs last disabled at (7697): [] irq_exit_rcu+0x93/0xc0 [ 50.395812] ---[ end trace 0000000000000000 ]--- [ 50.401529] ------------[ cut here ]------------ [ 50.402150] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 50.403949] WARNING: CPU: 0 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 50.405082] Modules linked in: [ 50.405532] CPU: 0 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 50.406714] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 50.407755] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 50.408438] 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 [ 50.410617] RSP: 0018:ffff888016d6fc00 EFLAGS: 00010282 [ 50.411299] RAX: 0000000000000000 RBX: ffff88800963b240 RCX: 0000000000000000 [ 50.412210] RDX: ffff88800f5a8000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 50.413059] RBP: ffff88800963b254 R08: 0000000000000001 R09: 0000000000000000 [ 50.413952] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 50.414833] R13: ffffffff84e23fe0 R14: ffff88800963b248 R15: ffffffff84da7d60 [ 50.415731] FS: 0000555556d63400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 50.416718] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.417445] CR2: 00007ffb041b66f4 CR3: 000000000ea64000 CR4: 0000000000350ef0 [ 50.418346] Call Trace: [ 50.418671] [ 50.418975] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 50.419615] ipv6_frags_init_net+0x206/0x3c0 [ 50.420222] ops_init+0xbb/0x6b0 [ 50.420672] setup_net+0x3d9/0x990 [ 50.421121] ? down_read_killable+0x1d7/0x4e0 [ 50.421728] ? __pfx_setup_net+0x10/0x10 [ 50.422264] ? copy_net_ns+0x17c/0x770 [ 50.422783] copy_net_ns+0x321/0x770 [ 50.423289] create_new_namespaces+0x3f6/0xb30 [ 50.423895] unshare_nsproxy_namespaces+0xc1/0x200 [ 50.424539] ksys_unshare+0x44d/0x8e0 [ 50.425023] ? __pfx_ksys_unshare+0x10/0x10 [ 50.425602] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 50.426350] __x64_sys_unshare+0x31/0x40 [ 50.426869] do_syscall_64+0x3f/0x90 [ 50.427376] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 50.428025] RIP: 0033:0x7f0f875ca0d7 [ 50.428521] 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 [ 50.430682] RSP: 002b:00007ffef608fea8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 50.431648] RAX: ffffffffffffffda RBX: 00007ffef60904e8 RCX: 00007f0f875ca0d7 [ 50.432562] RDX: 00007f0f8763441f RSI: 00007ffef608fe40 RDI: 0000000040000000 [ 50.433455] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffef608fc50 [ 50.434340] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f0f876dcbf0 [ 50.435251] R13: 00007ffef608ff80 R14: 0000000000000000 R15: 00000000000000f8 [ 50.436149] [ 50.436487] irq event stamp: 10165 [ 50.436914] hardirqs last enabled at (10175): [] __up_console_sem+0x78/0x80 [ 50.437990] hardirqs last disabled at (10186): [] __up_console_sem+0x5d/0x80 [ 50.439066] softirqs last enabled at (9714): [] irq_exit_rcu+0x93/0xc0 [ 50.440097] softirqs last disabled at (9709): [] irq_exit_rcu+0x93/0xc0 [ 50.441123] ---[ end trace 0000000000000000 ]--- [ 50.442515] ------------[ cut here ]------------ [ 50.443121] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 50.445027] WARNING: CPU: 0 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 50.446116] Modules linked in: [ 50.446554] CPU: 0 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 50.447725] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 50.448724] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 50.449398] 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 [ 50.451555] RSP: 0018:ffff888016d6fbf0 EFLAGS: 00010286 [ 50.452249] RAX: 0000000000000000 RBX: ffff888008d52a40 RCX: 0000000000000000 [ 50.453102] RDX: ffff88800f5a8000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 50.453996] RBP: ffff888008d52a54 R08: 0000000000000001 R09: 0000000000000000 [ 50.454899] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 50.455811] R13: ffffffff84e23fe0 R14: ffff888008d52a48 R15: ffffffff84db0aa0 [ 50.456705] FS: 0000555556d63400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 50.457716] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.458459] CR2: 00007ffb041b66f4 CR3: 000000000ea64000 CR4: 0000000000350ef0 [ 50.459343] Call Trace: [ 50.459682] [ 50.459989] nf_ct_net_init+0x224/0x3d0 [ 50.460547] ? __pfx_nf_ct_net_init+0x10/0x10 [ 50.461142] ops_init+0xbb/0x6b0 [ 50.461633] setup_net+0x3d9/0x990 [ 50.462108] ? down_read_killable+0x1d7/0x4e0 [ 50.462721] ? __pfx_setup_net+0x10/0x10 [ 50.463274] ? copy_net_ns+0x17c/0x770 [ 50.463804] copy_net_ns+0x321/0x770 [ 50.464339] create_new_namespaces+0x3f6/0xb30 [ 50.464923] unshare_nsproxy_namespaces+0xc1/0x200 [ 50.465569] ksys_unshare+0x44d/0x8e0 [ 50.466063] ? __pfx_ksys_unshare+0x10/0x10 [ 50.466638] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 50.467381] __x64_sys_unshare+0x31/0x40 [ 50.467912] do_syscall_64+0x3f/0x90 [ 50.468431] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 50.469077] RIP: 0033:0x7f0f875ca0d7 [ 50.469580] 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 [ 50.471808] RSP: 002b:00007ffef608fea8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 50.472767] RAX: ffffffffffffffda RBX: 00007ffef60904e8 RCX: 00007f0f875ca0d7 [ 50.473649] RDX: 00007f0f8763441f RSI: 00007ffef608fe40 RDI: 0000000040000000 [ 50.474525] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffef608fc50 [ 50.475400] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f0f876dcbf0 [ 50.476303] R13: 00007ffef608ff80 R14: 0000000000000000 R15: 00000000000000f8 [ 50.477195] [ 50.477492] irq event stamp: 11029 [ 50.477924] hardirqs last enabled at (11039): [] __up_console_sem+0x78/0x80 [ 50.478969] hardirqs last disabled at (11050): [] __up_console_sem+0x5d/0x80 [ 50.480054] softirqs last enabled at (10954): [] irq_exit_rcu+0x93/0xc0 [ 50.481075] softirqs last disabled at (10945): [] irq_exit_rcu+0x93/0xc0 [ 50.482086] ---[ end trace 0000000000000000 ]--- executing program [ 52.042980] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 54.089277] Bluetooth: hci0: command 0x041b tx timeout [ 56.136336] Bluetooth: hci0: command 0x040f tx timeout executing program [ 58.184265] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 04:45:07 Registers: info registers vcpu 0 RAX=dffffc0000000060 RBX=00000000000003fd RCX=0000000000000000 RDX=00000000000003fd RSI=ffffffff82507ef0 RDI=ffffffff87f2dc00 RBP=ffffffff87f2dbc0 RSP=ffff888016d6f598 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 0000555556d63400 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=00007ffb041b66f4 CR3=000000000ea64000 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=dffffc0000000000 RBX=ffff88806cf34fc0 RCX=0000000000000000 RDX=0000000000000000 RSI=ffffffff81c6889c RDI=ffff88800c35c640 RBP=ffff88800c35c640 RSP=ffff888018447968 R8 =0000000000000001 R9 =ffff888016a0dba8 R10=ffffffff85d35a17 R11=0000000000000001 R12=ffff8880995d9108 R13=ffffffff87efcd40 R14=ffff88800c35c640 R15=0000000000000000 RIP=ffffffff81358ba0 RFL=00000212 [----A--] 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 00007f98596bb700 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=00007fc8f705fdb0 CR3=000000000ec34000 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=2037303a35343a34302038312079614d XMM01=5d3936353535332e30352020205b203a XMM02=646f4d205d3936353535332e30352020 XMM03=6b7a79732037303a35343a3430203831 XMM04=7379735f74656e5f7265747369676572 XMM05=732f74656e20746120383532203a4449 XMM06=57205d3935323435332e30352020205b XMM07=79732037303a35343a34302038312079 XMM08=7475636578652d7a7973223d6d6d6f63 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000