Debian GNU/Linux 11 syzkaller ttyS0 syzkaller login: [ 30.455511] sshd (225) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:20023' (ECDSA) to the list of known hosts. 2023/05/17 19:42:42 fuzzer started 2023/05/17 19:42:42 dialing manager at localhost:44319 2023/05/17 19:42:42 checking machine... 2023/05/17 19:42:42 checking revisions... [ 31.746254] kmemleak: Automatic memory scanning thread ended 2023/05/17 19:42:42 testing simple program... [ 31.814178] cgroup: Unknown subsys name 'net' [ 31.892040] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 44.484282] audit: type=1400 audit(1684352575.441:6): avc: denied { execmem } for pid=259 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 45.633490] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 45.636122] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 45.638743] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 45.642954] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 45.644521] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 45.647471] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 46.049557] ------------[ cut here ]------------ [ 46.051088] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 46.052987] WARNING: CPU: 0 PID: 260 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 46.054268] Modules linked in: [ 46.054824] CPU: 0 PID: 260 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 46.059855] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 46.061080] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 46.061910] 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 [ 46.064434] RSP: 0018:ffff88801a0dfc00 EFLAGS: 00010282 [ 46.065359] RAX: 0000000000000000 RBX: ffff88800d734440 RCX: 0000000000000000 [ 46.066488] RDX: ffff888019f39b40 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 46.067637] RBP: ffff88800d734454 R08: 0000000000000001 R09: 0000000000000000 [ 46.068633] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 46.069626] R13: ffffffff84e23fe0 R14: ffff88800d734448 R15: ffffffff84d74dc0 [ 46.070617] FS: 0000555555db7400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 46.071741] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 46.072526] CR2: 00007fb775f036f4 CR3: 000000000b382000 CR4: 0000000000350ef0 [ 46.073510] Call Trace: [ 46.073907] [ 46.074239] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 46.074955] ipv4_frags_init_net+0x269/0x440 [ 46.075585] ops_init+0xbb/0x6b0 [ 46.076108] setup_net+0x3d9/0x990 [ 46.076611] ? down_read_killable+0x1d7/0x4e0 [ 46.077274] ? __pfx_setup_net+0x10/0x10 [ 46.077874] ? copy_net_ns+0x17c/0x770 [ 46.078432] copy_net_ns+0x321/0x770 [ 46.079001] create_new_namespaces+0x3f6/0xb30 [ 46.079694] unshare_nsproxy_namespaces+0xc1/0x200 [ 46.080371] ksys_unshare+0x44d/0x8e0 [ 46.080945] ? __pfx_ksys_unshare+0x10/0x10 [ 46.081548] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 46.082364] __x64_sys_unshare+0x31/0x40 [ 46.082971] do_syscall_64+0x3f/0x90 [ 46.083526] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 46.084283] RIP: 0033:0x7f454c21a0d7 [ 46.084830] 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 [ 46.087227] RSP: 002b:00007fff4fca8318 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 46.088275] RAX: ffffffffffffffda RBX: 00007fff4fca8958 RCX: 00007f454c21a0d7 [ 46.089267] RDX: 00007f454c28441f RSI: 00007fff4fca82b0 RDI: 0000000040000000 [ 46.090244] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fff4fca80c0 [ 46.091226] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f454c32cbf0 [ 46.092207] R13: 00007fff4fca83f0 R14: 0000000000000000 R15: 00000000000000f8 [ 46.093217] [ 46.093547] irq event stamp: 8773 [ 46.094055] hardirqs last enabled at (8785): [] __up_console_sem+0x78/0x80 [ 46.095225] hardirqs last disabled at (8796): [] __up_console_sem+0x5d/0x80 [ 46.096406] softirqs last enabled at (8394): [] irq_exit_rcu+0x93/0xc0 [ 46.097549] softirqs last disabled at (8385): [] irq_exit_rcu+0x93/0xc0 [ 46.098711] ---[ end trace 0000000000000000 ]--- [ 46.104376] ------------[ cut here ]------------ [ 46.105057] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 46.106817] WARNING: CPU: 0 PID: 260 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 46.107962] Modules linked in: [ 46.108390] CPU: 0 PID: 260 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 46.109616] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 46.110704] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 46.111395] 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 [ 46.113714] RSP: 0018:ffff88801a0dfc00 EFLAGS: 00010282 [ 46.114424] RAX: 0000000000000000 RBX: ffff88800d4e1240 RCX: 0000000000000000 [ 46.115440] RDX: ffff888019f39b40 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 46.116438] RBP: ffff88800d4e1254 R08: 0000000000000001 R09: 0000000000000000 [ 46.117425] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 46.118406] R13: ffffffff84e23fe0 R14: ffff88800d4e1248 R15: ffffffff84da7d60 [ 46.119406] FS: 0000555555db7400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 46.120513] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 46.121328] CR2: 00007fb775f036f4 CR3: 000000000b382000 CR4: 0000000000350ef0 [ 46.122317] Call Trace: [ 46.122712] [ 46.123042] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 46.123802] ipv6_frags_init_net+0x206/0x3c0 [ 46.124424] ops_init+0xbb/0x6b0 [ 46.124955] setup_net+0x3d9/0x990 [ 46.125459] ? down_read_killable+0x1d7/0x4e0 [ 46.126132] ? __pfx_setup_net+0x10/0x10 [ 46.126731] ? copy_net_ns+0x17c/0x770 [ 46.127288] copy_net_ns+0x321/0x770 [ 46.127877] create_new_namespaces+0x3f6/0xb30 [ 46.128523] unshare_nsproxy_namespaces+0xc1/0x200 [ 46.129238] ksys_unshare+0x44d/0x8e0 [ 46.129810] ? __pfx_ksys_unshare+0x10/0x10 [ 46.130407] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 46.131231] __x64_sys_unshare+0x31/0x40 [ 46.131858] do_syscall_64+0x3f/0x90 [ 46.132388] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 46.133142] RIP: 0033:0x7f454c21a0d7 [ 46.133692] 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 [ 46.136102] RSP: 002b:00007fff4fca8318 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 46.137157] RAX: ffffffffffffffda RBX: 00007fff4fca8958 RCX: 00007f454c21a0d7 [ 46.138133] RDX: 00007f454c28441f RSI: 00007fff4fca82b0 RDI: 0000000040000000 [ 46.139124] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fff4fca80c0 [ 46.140119] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f454c32cbf0 [ 46.141113] R13: 00007fff4fca83f0 R14: 0000000000000000 R15: 00000000000000f8 [ 46.142116] [ 46.142450] irq event stamp: 10499 [ 46.142972] hardirqs last enabled at (10511): [] __up_console_sem+0x78/0x80 [ 46.144192] hardirqs last disabled at (10522): [] __up_console_sem+0x5d/0x80 [ 46.145381] softirqs last enabled at (10214): [] irq_exit_rcu+0x93/0xc0 [ 46.146530] softirqs last disabled at (10209): [] irq_exit_rcu+0x93/0xc0 [ 46.147701] ---[ end trace 0000000000000000 ]--- [ 46.149951] ------------[ cut here ]------------ [ 46.150595] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 46.152713] WARNING: CPU: 0 PID: 260 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 46.153895] Modules linked in: [ 46.154346] CPU: 0 PID: 260 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 46.155653] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 46.156801] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 46.157521] 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 [ 46.159959] RSP: 0018:ffff88801a0dfbf0 EFLAGS: 00010286 [ 46.160723] RAX: 0000000000000000 RBX: ffff88800d4e0c40 RCX: 0000000000000000 [ 46.161733] RDX: ffff888019f39b40 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 46.162728] RBP: ffff88800d4e0c54 R08: 0000000000000001 R09: 0000000000000000 [ 46.163727] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 46.164725] R13: ffffffff84e23fe0 R14: ffff88800d4e0c48 R15: ffffffff84db0aa0 [ 46.165716] FS: 0000555555db7400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 46.166837] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 46.167619] CR2: 00007fb775f036f4 CR3: 000000000b382000 CR4: 0000000000350ef0 [ 46.168524] Call Trace: [ 46.168903] [ 46.169214] nf_ct_net_init+0x224/0x3d0 [ 46.169774] ? __pfx_nf_ct_net_init+0x10/0x10 [ 46.170362] ops_init+0xbb/0x6b0 [ 46.170855] setup_net+0x3d9/0x990 [ 46.171316] ? down_read_killable+0x1d7/0x4e0 [ 46.171960] ? __pfx_setup_net+0x10/0x10 [ 46.172479] ? copy_net_ns+0x17c/0x770 [ 46.173032] copy_net_ns+0x321/0x770 [ 46.173524] create_new_namespaces+0x3f6/0xb30 [ 46.174149] unshare_nsproxy_namespaces+0xc1/0x200 [ 46.174807] ksys_unshare+0x44d/0x8e0 [ 46.175299] ? __pfx_ksys_unshare+0x10/0x10 [ 46.175896] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 46.176614] __x64_sys_unshare+0x31/0x40 [ 46.177177] do_syscall_64+0x3f/0x90 [ 46.177694] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 46.178348] RIP: 0033:0x7f454c21a0d7 [ 46.178874] 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 [ 46.181610] RSP: 002b:00007fff4fca8318 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 46.182873] RAX: ffffffffffffffda RBX: 00007fff4fca8958 RCX: 00007f454c21a0d7 [ 46.184061] RDX: 00007f454c28441f RSI: 00007fff4fca82b0 RDI: 0000000040000000 [ 46.185238] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fff4fca80c0 [ 46.186426] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f454c32cbf0 [ 46.187618] R13: 00007fff4fca83f0 R14: 0000000000000000 R15: 00000000000000f8 [ 46.188814] [ 46.189217] irq event stamp: 11273 [ 46.189845] hardirqs last enabled at (11285): [] __up_console_sem+0x78/0x80 [ 46.191265] hardirqs last disabled at (11296): [] __up_console_sem+0x5d/0x80 [ 46.192697] softirqs last enabled at (11034): [] irq_exit_rcu+0x93/0xc0 [ 46.194086] softirqs last disabled at (11025): [] irq_exit_rcu+0x93/0xc0 [ 46.195500] ---[ end trace 0000000000000000 ]--- executing program [ 47.724366] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 49.771750] Bluetooth: hci0: command 0x041b tx timeout [ 51.819731] Bluetooth: hci0: command 0x040f tx timeout executing program [ 53.867735] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 19:42:53 Registers: info registers vcpu 0 RAX=0000000000000073 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507f85 RDI=ffffffff87f2dc00 RBP=ffffffff87f2dbc0 RSP=ffff88801a0df5f0 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000073 R11=0000000000000001 R12=0000000000000073 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 0000555555db7400 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=00007fb775f036f4 CR3=000000000b382000 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=000000000002f5f5 RBX=0000000000000001 RCX=ffffffff844d0a0e RDX=0000000000000000 RSI=0000000000000000 RDI=ffffffff81287415 RBP=dffffc0000000000 RSP=ffff888008dcfe70 R8 =0000000000000001 R9 =ffffed100d9e69f8 R10=ffff88806cf34fc3 R11=0000000000000001 R12=ffffffff85d35a10 R13=1ffff110011b9fd3 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 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=00007f5cca403550 CR3=000000001606e000 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=89d2a6cc9eb165af3c431ff354be9568 XMM02=6b1e99b806172e3b00000000000aea28 XMM03=ac8bc31478ec851100000000000aefa0 XMM04=e1363b6cbae04f2c000000000013c378 XMM05=d3fdd5f48436fbd700000000000aead0 XMM06=edcad57c479aff3800000000000ae988 XMM07=a1fcdcf819d7e1e500000000000ae728 XMM08=44495f474f4c5359530069253d595449 XMM09=00000000000000000000000000000000 XMM10=00000000000000000020002000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000