syzkaller login: [ 41.168591] sshd (217) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:5819' (ECDSA) to the list of known hosts. 2023/05/17 16:05:50 fuzzer started 2023/05/17 16:05:50 dialing manager at localhost:44319 2023/05/17 16:05:50 checking machine... 2023/05/17 16:05:50 checking revisions... [ 43.343753] kmemleak: Automatic memory scanning thread ended 2023/05/17 16:05:51 testing simple program... [ 43.423153] cgroup: Unknown subsys name 'net' [ 43.528353] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 55.566464] audit: type=1400 audit(1684339563.250:6): 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 [ 56.681470] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 56.682581] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 56.684218] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 56.687646] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 56.690279] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 56.691183] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 57.077919] ------------[ cut here ]------------ [ 57.078393] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 57.079806] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 57.080615] Modules linked in: [ 57.080956] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 57.085488] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 57.086395] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 57.087028] 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 [ 57.088736] RSP: 0018:ffff88801a1efc00 EFLAGS: 00010282 [ 57.089249] RAX: 0000000000000000 RBX: ffff88800e18ec40 RCX: 0000000000000000 [ 57.089944] RDX: ffff8880164eb680 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 57.090601] RBP: ffff88800e18ec54 R08: 0000000000000001 R09: 0000000000000000 [ 57.091273] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 57.091957] R13: ffffffff84e23fe0 R14: ffff88800e18ec48 R15: ffffffff84d74dc0 [ 57.092618] FS: 0000555555bb5400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 57.093398] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.093961] CR2: 00007f4c14e356f4 CR3: 000000000ebba000 CR4: 0000000000350ef0 [ 57.094616] Call Trace: [ 57.094889] [ 57.095113] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 57.095576] ipv4_frags_init_net+0x269/0x440 [ 57.096022] ops_init+0xbb/0x6b0 [ 57.096373] setup_net+0x3d9/0x990 [ 57.096742] ? down_read_killable+0x1d7/0x4e0 [ 57.097197] ? __pfx_setup_net+0x10/0x10 [ 57.097582] ? copy_net_ns+0x17c/0x770 [ 57.097930] copy_net_ns+0x321/0x770 [ 57.098204] create_new_namespaces+0x3f6/0xb30 [ 57.098534] unshare_nsproxy_namespaces+0xc1/0x200 [ 57.098900] ksys_unshare+0x44d/0x8e0 [ 57.099181] ? __pfx_ksys_unshare+0x10/0x10 [ 57.099493] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 57.099920] __x64_sys_unshare+0x31/0x40 [ 57.100213] do_syscall_64+0x3f/0x90 [ 57.100486] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 57.100881] RIP: 0033:0x7ffabdaba0d7 [ 57.101141] 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 [ 57.102378] RSP: 002b:00007ffdd0af0ec8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 57.102926] RAX: ffffffffffffffda RBX: 00007ffdd0af1508 RCX: 00007ffabdaba0d7 [ 57.103420] RDX: 00007ffabdb2441f RSI: 00007ffdd0af0e60 RDI: 0000000040000000 [ 57.103922] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffdd0af0c70 [ 57.104408] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffabdbccbf0 [ 57.104909] R13: 00007ffdd0af0fa0 R14: 0000000000000000 R15: 00000000000000f8 [ 57.105403] [ 57.105572] irq event stamp: 8059 [ 57.105837] hardirqs last enabled at (8071): [] __up_console_sem+0x78/0x80 [ 57.106407] hardirqs last disabled at (8080): [] __up_console_sem+0x5d/0x80 [ 57.106984] softirqs last enabled at (7650): [] irq_exit_rcu+0x93/0xc0 [ 57.107531] softirqs last disabled at (7631): [] irq_exit_rcu+0x93/0xc0 [ 57.108095] ---[ end trace 0000000000000000 ]--- [ 57.111263] ------------[ cut here ]------------ [ 57.111587] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 57.112594] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 57.113187] Modules linked in: [ 57.113411] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 57.114038] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 57.114571] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 57.114939] 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 [ 57.116142] RSP: 0018:ffff88801a1efc00 EFLAGS: 00010282 [ 57.116516] RAX: 0000000000000000 RBX: ffff88800d920a40 RCX: 0000000000000000 [ 57.117034] RDX: ffff8880164eb680 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 57.117533] RBP: ffff88800d920a54 R08: 0000000000000001 R09: 0000000000000000 [ 57.118046] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 57.118544] R13: ffffffff84e23fe0 R14: ffff88800d920a48 R15: ffffffff84da7d60 [ 57.119062] FS: 0000555555bb5400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 57.119609] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.120033] CR2: 00007f4c14e356f4 CR3: 000000000ebba000 CR4: 0000000000350ef0 [ 57.120527] Call Trace: [ 57.120734] [ 57.120921] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 57.121271] ipv6_frags_init_net+0x206/0x3c0 [ 57.121588] ops_init+0xbb/0x6b0 [ 57.121862] setup_net+0x3d9/0x990 [ 57.122126] ? down_read_killable+0x1d7/0x4e0 [ 57.122448] ? __pfx_setup_net+0x10/0x10 [ 57.122758] ? copy_net_ns+0x17c/0x770 [ 57.123052] copy_net_ns+0x321/0x770 [ 57.123322] create_new_namespaces+0x3f6/0xb30 [ 57.123649] unshare_nsproxy_namespaces+0xc1/0x200 [ 57.124022] ksys_unshare+0x44d/0x8e0 [ 57.124301] ? __pfx_ksys_unshare+0x10/0x10 [ 57.124617] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 57.125044] __x64_sys_unshare+0x31/0x40 [ 57.125341] do_syscall_64+0x3f/0x90 [ 57.125614] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 57.126002] RIP: 0033:0x7ffabdaba0d7 [ 57.126266] 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 [ 57.127486] RSP: 002b:00007ffdd0af0ec8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 57.128015] RAX: ffffffffffffffda RBX: 00007ffdd0af1508 RCX: 00007ffabdaba0d7 [ 57.128505] RDX: 00007ffabdb2441f RSI: 00007ffdd0af0e60 RDI: 0000000040000000 [ 57.129012] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffdd0af0c70 [ 57.129496] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffabdbccbf0 [ 57.129994] R13: 00007ffdd0af0fa0 R14: 0000000000000000 R15: 00000000000000f8 [ 57.130497] [ 57.130667] irq event stamp: 9789 [ 57.130926] hardirqs last enabled at (9801): [] __up_console_sem+0x78/0x80 [ 57.131499] hardirqs last disabled at (9810): [] __up_console_sem+0x5d/0x80 [ 57.132102] softirqs last enabled at (9310): [] irq_exit_rcu+0x93/0xc0 [ 57.132673] softirqs last disabled at (9251): [] irq_exit_rcu+0x93/0xc0 [ 57.133252] ---[ end trace 0000000000000000 ]--- [ 57.133996] ------------[ cut here ]------------ [ 57.134330] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 57.135386] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 57.135985] Modules linked in: [ 57.136214] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 57.136883] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 57.137438] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 57.137818] 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 [ 57.139036] RSP: 0018:ffff88801a1efbf0 EFLAGS: 00010286 [ 57.139401] RAX: 0000000000000000 RBX: ffff88800d921040 RCX: 0000000000000000 [ 57.139906] RDX: ffff8880164eb680 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 57.140396] RBP: ffff88800d921054 R08: 0000000000000001 R09: 0000000000000000 [ 57.140907] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 57.141388] R13: ffffffff84e23fe0 R14: ffff88800d921048 R15: ffffffff84db0aa0 [ 57.141888] FS: 0000555555bb5400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 57.142432] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.142852] CR2: 00007f4c14e356f4 CR3: 000000000ebba000 CR4: 0000000000350ef0 [ 57.143357] Call Trace: [ 57.143544] [ 57.143728] nf_ct_net_init+0x224/0x3d0 [ 57.144020] ? __pfx_nf_ct_net_init+0x10/0x10 [ 57.144349] ops_init+0xbb/0x6b0 [ 57.144596] setup_net+0x3d9/0x990 [ 57.144881] ? down_read_killable+0x1d7/0x4e0 [ 57.145210] ? __pfx_setup_net+0x10/0x10 [ 57.145504] ? copy_net_ns+0x17c/0x770 [ 57.145810] copy_net_ns+0x321/0x770 [ 57.146086] create_new_namespaces+0x3f6/0xb30 [ 57.146413] unshare_nsproxy_namespaces+0xc1/0x200 [ 57.146779] ksys_unshare+0x44d/0x8e0 [ 57.147065] ? __pfx_ksys_unshare+0x10/0x10 [ 57.147375] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 57.147800] __x64_sys_unshare+0x31/0x40 [ 57.148091] do_syscall_64+0x3f/0x90 [ 57.148359] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 57.148739] RIP: 0033:0x7ffabdaba0d7 [ 57.149026] 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 [ 57.150281] RSP: 002b:00007ffdd0af0ec8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 57.150817] RAX: ffffffffffffffda RBX: 00007ffdd0af1508 RCX: 00007ffabdaba0d7 [ 57.151302] RDX: 00007ffabdb2441f RSI: 00007ffdd0af0e60 RDI: 0000000040000000 [ 57.151799] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffdd0af0c70 [ 57.152281] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffabdbccbf0 [ 57.152781] R13: 00007ffdd0af0fa0 R14: 0000000000000000 R15: 00000000000000f8 [ 57.153289] [ 57.153457] irq event stamp: 10517 [ 57.153697] hardirqs last enabled at (10527): [] __up_console_sem+0x78/0x80 [ 57.154298] hardirqs last disabled at (10538): [] __up_console_sem+0x5d/0x80 [ 57.154894] softirqs last enabled at (10280): [] irq_exit_rcu+0x93/0xc0 [ 57.155457] softirqs last disabled at (10271): [] irq_exit_rcu+0x93/0xc0 [ 57.156038] ---[ end trace 0000000000000000 ]--- executing program [ 58.769370] Bluetooth: hci0: command 0x0409 tx timeout [ 60.816772] Bluetooth: hci0: command 0x041b tx timeout executing program [ 62.864792] Bluetooth: hci0: command 0x040f tx timeout executing program [ 64.912855] Bluetooth: hci0: command 0x0419 tx timeout VM DIAGNOSIS: 16:05:58 Registers: info registers vcpu 0 RAX=000000000000002d RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507f85 RDI=ffffffff87f2dc00 RBP=ffffffff87f2dbc0 RSP=ffff88801a1ef5f0 R8 =0000000000000001 R9 =000000000000000a R10=000000000000002d R11=0000000000000001 R12=000000000000002d 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 0000555555bb5400 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=00007f4c14e356f4 CR3=000000000ebba000 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=0000000000000046 RBX=ffff888008d951c0 RCX=1ffffffff0ba6629 RDX=1ffff110011b2b72 RSI=0000000000000000 RDI=ffffffff844f3b1c RBP=ffffffff844f3b1c RSP=ffff88806cf09e38 R8 =0000000000000001 R9 =0000000000000001 R10=ffffffff85d35a17 R11=0000000000000001 R12=ffffffff856163c0 R13=0000000000000002 R14=0000000000000002 R15=0000000000000000 RIP=ffffffff844cfdee RFL=00000046 [---Z-P-] 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 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=00007f0e481400a0 CR3=000000000db74000 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=000000000000000000000000000000ff XMM02=000000000000000000000000000000ff XMM03=6465746e69615420302e726f74756365 XMM04=636f72703d7373616c63742030733a74 XMM05=3a755f6d65747379733d747865746e6f XMM06=5f6d65747379733a755f6d6574737973 XMM07=00000000000000000000000000000000 XMM08=203f3d72646461203f3d656d616e7400 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000