Debian GNU/Linux 11 syzkaller ttyS0 syzkaller login: [ 130.353076] sshd (231) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:31094' (ECDSA) to the list of known hosts. 2023/05/16 20:55:19 fuzzer started 2023/05/16 20:55:19 dialing manager at localhost:35573 2023/05/16 20:55:19 checking machine... 2023/05/16 20:55:19 checking revisions... [ 131.614862] kmemleak: Automatic memory scanning thread ended 2023/05/16 20:55:20 testing simple program... [ 131.682323] cgroup: Unknown subsys name 'net' [ 131.761577] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 144.591916] audit: type=1400 audit(1684270533.087:6): avc: denied { execmem } for pid=265 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 145.731407] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 145.733387] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 145.736944] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 145.740705] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 145.742696] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 145.744509] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 146.121300] ------------[ cut here ]------------ [ 146.122092] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 146.124093] WARNING: CPU: 0 PID: 266 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 146.125372] Modules linked in: [ 146.125892] CPU: 0 PID: 266 Comm: syz-executor.0 Tainted: G W L 6.4.0-rc2-next-20230516 #1 [ 146.130805] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 146.131977] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 146.132772] 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 [ 146.134924] RSP: 0018:ffff888016567c00 EFLAGS: 00010282 [ 146.135574] RAX: 0000000000000000 RBX: ffff888014321040 RCX: 0000000000000000 [ 146.136488] RDX: ffff88800efdb680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 146.137363] RBP: ffff888014321054 R08: 0000000000000001 R09: 0000000000000000 [ 146.138341] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 146.139350] R13: ffffffff84e223a0 R14: ffff888014321048 R15: ffffffff84d73340 [ 146.140251] FS: 000055555705d400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 146.141247] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 146.141994] CR2: 00007f91594856f4 CR3: 0000000015cee000 CR4: 0000000000350ef0 [ 146.142872] Call Trace: [ 146.143198] [ 146.143497] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 146.144145] ipv4_frags_init_net+0x269/0x440 [ 146.144730] ops_init+0xbb/0x6b0 [ 146.145179] setup_net+0x3d9/0x990 [ 146.145658] ? down_read_killable+0x1d7/0x4e0 [ 146.146226] ? __pfx_setup_net+0x10/0x10 [ 146.146762] ? copy_net_ns+0x17c/0x770 [ 146.147270] copy_net_ns+0x321/0x770 [ 146.147783] create_new_namespaces+0x3f6/0xb30 [ 146.148391] unshare_nsproxy_namespaces+0xc1/0x200 [ 146.149032] ksys_unshare+0x44d/0x8e0 [ 146.149522] ? __pfx_ksys_unshare+0x10/0x10 [ 146.150094] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 146.150830] __x64_sys_unshare+0x31/0x40 [ 146.151350] do_syscall_64+0x3f/0x90 [ 146.151856] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 146.152498] RIP: 0033:0x7fbecd2450d7 [ 146.152990] 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 [ 146.155137] RSP: 002b:00007ffca18262b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 146.156097] RAX: ffffffffffffffda RBX: 00007ffca18268f8 RCX: 00007fbecd2450d7 [ 146.156981] RDX: 00007fbecd2af41f RSI: 00007ffca1826250 RDI: 0000000040000000 [ 146.157866] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffca1826060 [ 146.158758] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fbecd357bf0 [ 146.159608] R13: 00007ffca1826390 R14: 0000000000000000 R15: 00000000000000f8 [ 146.160529] [ 146.160857] irq event stamp: 7933 [ 146.161283] hardirqs last enabled at (7943): [] __up_console_sem+0x78/0x80 [ 146.162333] hardirqs last disabled at (7954): [] __up_console_sem+0x5d/0x80 [ 146.163381] softirqs last enabled at (7570): [] irq_exit_rcu+0x93/0xc0 [ 146.164415] softirqs last disabled at (7565): [] irq_exit_rcu+0x93/0xc0 [ 146.165442] ---[ end trace 0000000000000000 ]--- [ 146.170766] ------------[ cut here ]------------ [ 146.171354] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 146.173126] WARNING: CPU: 0 PID: 266 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 146.174169] Modules linked in: [ 146.174571] CPU: 0 PID: 266 Comm: syz-executor.0 Tainted: G W L 6.4.0-rc2-next-20230516 #1 [ 146.175719] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 146.176733] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 146.177370] 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 [ 146.179519] RSP: 0018:ffff888016567c00 EFLAGS: 00010282 [ 146.180228] RAX: 0000000000000000 RBX: ffff88800f684c40 RCX: 0000000000000000 [ 146.181101] RDX: ffff88800efdb680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 146.181982] RBP: ffff88800f684c54 R08: 0000000000000001 R09: 0000000000000000 [ 146.182856] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 146.183725] R13: ffffffff84e223a0 R14: ffff88800f684c48 R15: ffffffff84da62e0 [ 146.184579] FS: 000055555705d400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 146.185548] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 146.186278] CR2: 00007f91594856f4 CR3: 0000000015cee000 CR4: 0000000000350ef0 [ 146.187164] Call Trace: [ 146.187486] [ 146.187809] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 146.188436] ipv6_frags_init_net+0x206/0x3c0 [ 146.189018] ops_init+0xbb/0x6b0 [ 146.189453] setup_net+0x3d9/0x990 [ 146.189927] ? down_read_killable+0x1d7/0x4e0 [ 146.190484] ? __pfx_setup_net+0x10/0x10 [ 146.191010] ? copy_net_ns+0x17c/0x770 [ 146.191509] copy_net_ns+0x321/0x770 [ 146.192019] create_new_namespaces+0x3f6/0xb30 [ 146.192596] unshare_nsproxy_namespaces+0xc1/0x200 [ 146.193235] ksys_unshare+0x44d/0x8e0 [ 146.193744] ? __pfx_ksys_unshare+0x10/0x10 [ 146.194283] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 146.195012] __x64_sys_unshare+0x31/0x40 [ 146.195524] do_syscall_64+0x3f/0x90 [ 146.196028] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 146.196680] RIP: 0033:0x7fbecd2450d7 [ 146.197132] 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 [ 146.199266] RSP: 002b:00007ffca18262b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 146.200232] RAX: ffffffffffffffda RBX: 00007ffca18268f8 RCX: 00007fbecd2450d7 [ 146.201126] RDX: 00007fbecd2af41f RSI: 00007ffca1826250 RDI: 0000000040000000 [ 146.202059] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffca1826060 [ 146.202936] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fbecd357bf0 [ 146.203807] R13: 00007ffca1826390 R14: 0000000000000000 R15: 00000000000000f8 [ 146.204717] [ 146.205016] irq event stamp: 9597 [ 146.205434] hardirqs last enabled at (9607): [] __up_console_sem+0x78/0x80 [ 146.206492] hardirqs last disabled at (9618): [] __up_console_sem+0x5d/0x80 [ 146.207530] softirqs last enabled at (9546): [] irq_exit_rcu+0x93/0xc0 [ 146.208546] softirqs last disabled at (9537): [] irq_exit_rcu+0x93/0xc0 [ 146.209552] ---[ end trace 0000000000000000 ]--- [ 146.210919] ------------[ cut here ]------------ [ 146.211498] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 146.213498] WARNING: CPU: 0 PID: 266 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 146.214552] Modules linked in: [ 146.214981] CPU: 0 PID: 266 Comm: syz-executor.0 Tainted: G W L 6.4.0-rc2-next-20230516 #1 [ 146.216126] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 146.217140] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 146.217804] 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 [ 146.219948] RSP: 0018:ffff888016567bf0 EFLAGS: 00010286 [ 146.220588] RAX: 0000000000000000 RBX: ffff88800d725840 RCX: 0000000000000000 [ 146.221459] RDX: ffff88800efdb680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 146.222336] RBP: ffff88800d725854 R08: 0000000000000001 R09: 0000000000000000 [ 146.223213] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 146.224113] R13: ffffffff84e223a0 R14: ffff88800d725848 R15: ffffffff84daf020 [ 146.224993] FS: 000055555705d400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 146.226021] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 146.226754] CR2: 00007f91594856f4 CR3: 0000000015cee000 CR4: 0000000000350ef0 [ 146.227604] Call Trace: [ 146.227960] [ 146.228257] nf_ct_net_init+0x224/0x3d0 [ 146.228802] ? __pfx_nf_ct_net_init+0x10/0x10 [ 146.229368] ops_init+0xbb/0x6b0 [ 146.229837] setup_net+0x3d9/0x990 [ 146.230285] ? down_read_killable+0x1d7/0x4e0 [ 146.230875] ? __pfx_setup_net+0x10/0x10 [ 146.231381] ? copy_net_ns+0x17c/0x770 [ 146.231926] copy_net_ns+0x321/0x770 [ 146.232406] create_new_namespaces+0x3f6/0xb30 [ 146.233018] unshare_nsproxy_namespaces+0xc1/0x200 [ 146.233659] ksys_unshare+0x44d/0x8e0 [ 146.234152] ? __pfx_ksys_unshare+0x10/0x10 [ 146.234723] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 146.235436] __x64_sys_unshare+0x31/0x40 [ 146.235981] do_syscall_64+0x3f/0x90 [ 146.236454] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 146.237119] RIP: 0033:0x7fbecd2450d7 [ 146.237586] 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 [ 146.239768] RSP: 002b:00007ffca18262b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 146.240738] RAX: ffffffffffffffda RBX: 00007ffca18268f8 RCX: 00007fbecd2450d7 [ 146.241606] RDX: 00007fbecd2af41f RSI: 00007ffca1826250 RDI: 0000000040000000 [ 146.242491] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffca1826060 [ 146.243386] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fbecd357bf0 [ 146.244310] R13: 00007ffca1826390 R14: 0000000000000000 R15: 00000000000000f8 [ 146.245225] [ 146.245530] irq event stamp: 10401 [ 146.245992] hardirqs last enabled at (10413): [] __up_console_sem+0x78/0x80 [ 146.247057] hardirqs last disabled at (10424): [] __up_console_sem+0x5d/0x80 [ 146.248134] softirqs last enabled at (10346): [] irq_exit_rcu+0x93/0xc0 [ 146.249164] softirqs last disabled at (10341): [] irq_exit_rcu+0x93/0xc0 [ 146.250204] ---[ end trace 0000000000000000 ]--- executing program [ 147.802229] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 149.849683] Bluetooth: hci0: command 0x041b tx timeout [ 151.897679] Bluetooth: hci0: command 0x040f tx timeout executing program [ 153.945780] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 20:53:59 Registers: info registers vcpu 0 RAX=dffffc0000000060 RBX=00000000000003fd RCX=0000000000000000 RDX=00000000000003fd RSI=ffffffff825075f0 RDI=ffffffff87f27c00 RBP=ffffffff87f27bc0 RSP=ffff888016567598 R8 =0000000000000004 R9 =0000000000000010 R10=0000000000000010 R11=0000000000000001 R12=0000000000002710 R13=0000000000000020 R14=fffffbfff0fe4fd1 R15=dffffc0000000000 RIP=ffffffff82507645 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 000055555705d400 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=00007f91594856f4 CR3=0000000015cee000 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=00000000000c8041 RBX=0000000000000001 RCX=ffffffff844c4a0e RDX=0000000000000000 RSI=0000000000000000 RDI=ffffffff81288625 RBP=dffffc0000000000 RSP=ffff888008dcfe68 R8 =0000000000000001 R9 =ffffed100d9e69f8 R10=ffff88806cf34fc3 R11=0000000000000001 R12=ffffffff85d34a10 R13=1ffff110011b9fd2 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 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=00007fd25b6548f0 CR3=000000000e88e000 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=2034333a35353a30322036312079614d XMM01=5d3239383532312e36343120205b203a XMM02=75636578652d7a7973203a6d6d6f4320 XMM03=20204c20202020572020202020202020 XMM04=6e2d3263722d302e342e362020202020 XMM05=3a6465746e69615420302e726f747563 XMM06=32203a4449502030203a555043205d32 XMM07=6e72656b2072656c6c616b7a79732034 XMM08=7475636578652d7a7973223d6d6d6f63 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000