syzkaller login: [ 40.792430] sshd (225) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:49659' (ECDSA) to the list of known hosts. 2023/05/16 19:37:43 fuzzer started 2023/05/16 19:37:43 dialing manager at localhost:35573 2023/05/16 19:37:43 checking machine... 2023/05/16 19:37:43 checking revisions... [ 42.003334] kmemleak: Automatic memory scanning thread ended 2023/05/16 19:37:44 testing simple program... [ 42.086445] cgroup: Unknown subsys name 'net' [ 42.163019] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 55.617234] audit: type=1400 audit(1684265877.758:6): 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 [ 56.801833] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 56.803348] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 56.805418] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 56.808888] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 56.810320] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 56.812305] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 executing program [ 57.204392] ------------[ cut here ]------------ [ 57.205065] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 57.207149] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 57.208252] Modules linked in: [ 57.208695] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 57.210688] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 57.214637] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 57.215297] 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 [ 57.217626] RSP: 0018:ffff88801ed87c00 EFLAGS: 00010282 [ 57.218275] RAX: 0000000000000000 RBX: ffff888016706c40 RCX: 0000000000000000 [ 57.219263] RDX: ffff88801453b680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 57.220235] RBP: ffff888016706c54 R08: 0000000000000001 R09: 0000000000000000 [ 57.221230] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 57.222215] R13: ffffffff84e223a0 R14: ffff888016706c48 R15: ffffffff84d73340 [ 57.223221] FS: 0000555555805400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 57.224319] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.225139] CR2: 00007f7effe346f4 CR3: 000000000e73a000 CR4: 0000000000350ee0 [ 57.226120] Call Trace: [ 57.226447] [ 57.226864] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 57.227482] ipv4_frags_init_net+0x269/0x440 [ 57.228147] ops_init+0xbb/0x6b0 [ 57.228717] setup_net+0x3d9/0x990 [ 57.229174] ? down_read_killable+0x1d7/0x4e0 [ 57.229853] ? __pfx_setup_net+0x10/0x10 [ 57.230359] ? copy_net_ns+0x17c/0x770 [ 57.230996] copy_net_ns+0x321/0x770 [ 57.231482] create_new_namespaces+0x3f6/0xb30 [ 57.232252] unshare_nsproxy_namespaces+0xc1/0x200 [ 57.233048] ksys_unshare+0x44d/0x8e0 [ 57.233579] ? __pfx_ksys_unshare+0x10/0x10 [ 57.234123] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 57.234867] __x64_sys_unshare+0x31/0x40 [ 57.235393] do_syscall_64+0x3f/0x90 [ 57.235900] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 57.236575] RIP: 0033:0x7fb87ea3f0d7 [ 57.237041] 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 [ 57.239211] RSP: 002b:00007fffd8f17658 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 57.240172] RAX: ffffffffffffffda RBX: 00007fffd8f17c98 RCX: 00007fb87ea3f0d7 [ 57.241081] RDX: 00007fb87eaa941f RSI: 00007fffd8f175f0 RDI: 0000000040000000 [ 57.241966] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fffd8f17400 [ 57.242863] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fb87eb51bf0 [ 57.243772] R13: 00007fffd8f17730 R14: 0000000000000000 R15: 00000000000000f8 [ 57.244698] [ 57.244998] irq event stamp: 8941 [ 57.245418] hardirqs last enabled at (8951): [] __up_console_sem+0x78/0x80 [ 57.246472] hardirqs last disabled at (8962): [] __up_console_sem+0x5d/0x80 [ 57.247550] softirqs last enabled at (8758): [] irq_exit_rcu+0x93/0xc0 [ 57.248596] softirqs last disabled at (8701): [] irq_exit_rcu+0x93/0xc0 [ 57.249643] ---[ end trace 0000000000000000 ]--- [ 57.255570] ------------[ cut here ]------------ [ 57.256167] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 57.257869] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 57.258931] Modules linked in: [ 57.259336] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 57.260528] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 57.261552] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 57.262197] 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 [ 57.264480] RSP: 0018:ffff88801ed87c00 EFLAGS: 00010282 [ 57.265181] RAX: 0000000000000000 RBX: ffff88800df12040 RCX: 0000000000000000 [ 57.266098] RDX: ffff88801453b680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 57.267031] RBP: ffff88800df12054 R08: 0000000000000001 R09: 0000000000000000 [ 57.267945] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 57.268839] R13: ffffffff84e223a0 R14: ffff88800df12048 R15: ffffffff84da62e0 [ 57.269740] FS: 0000555555805400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 57.270747] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.271484] CR2: 00007f7effe346f4 CR3: 000000000e73a000 CR4: 0000000000350ee0 [ 57.272381] Call Trace: [ 57.272740] [ 57.273040] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 57.273686] ipv6_frags_init_net+0x206/0x3c0 [ 57.274241] ops_init+0xbb/0x6b0 [ 57.274725] setup_net+0x3d9/0x990 [ 57.275192] ? down_read_killable+0x1d7/0x4e0 [ 57.275803] ? __pfx_setup_net+0x10/0x10 [ 57.276311] ? copy_net_ns+0x17c/0x770 [ 57.276854] copy_net_ns+0x321/0x770 [ 57.277345] create_new_namespaces+0x3f6/0xb30 [ 57.277967] unshare_nsproxy_namespaces+0xc1/0x200 [ 57.278618] ksys_unshare+0x44d/0x8e0 [ 57.279138] ? __pfx_ksys_unshare+0x10/0x10 [ 57.279734] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 57.280452] __x64_sys_unshare+0x31/0x40 [ 57.281014] do_syscall_64+0x3f/0x90 [ 57.281503] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 57.282180] RIP: 0033:0x7fb87ea3f0d7 [ 57.282682] 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 [ 57.284916] RSP: 002b:00007fffd8f17658 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 57.285882] RAX: ffffffffffffffda RBX: 00007fffd8f17c98 RCX: 00007fb87ea3f0d7 [ 57.286794] RDX: 00007fb87eaa941f RSI: 00007fffd8f175f0 RDI: 0000000040000000 [ 57.287723] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fffd8f17400 [ 57.288628] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fb87eb51bf0 [ 57.289497] R13: 00007fffd8f17730 R14: 0000000000000000 R15: 00000000000000f8 [ 57.290430] [ 57.290773] irq event stamp: 10995 [ 57.291217] hardirqs last enabled at (11005): [] __up_console_sem+0x78/0x80 [ 57.292286] hardirqs last disabled at (11016): [] __up_console_sem+0x5d/0x80 [ 57.293349] softirqs last enabled at (10902): [] irq_exit_rcu+0x93/0xc0 [ 57.294403] softirqs last disabled at (10893): [] irq_exit_rcu+0x93/0xc0 [ 57.295470] ---[ end trace 0000000000000000 ]--- [ 57.296892] ------------[ cut here ]------------ [ 57.297480] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 57.299385] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 57.300452] Modules linked in: [ 57.300892] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 57.302045] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 57.303093] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 57.303776] 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 [ 57.306052] RSP: 0018:ffff88801ed87bf0 EFLAGS: 00010286 [ 57.306772] RAX: 0000000000000000 RBX: ffff88800df12640 RCX: 0000000000000000 [ 57.307728] RDX: ffff88801453b680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 57.308667] RBP: ffff88800df12654 R08: 0000000000000001 R09: 0000000000000000 [ 57.309602] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 57.310570] R13: ffffffff84e223a0 R14: ffff88800df12648 R15: ffffffff84daf020 [ 57.311571] FS: 0000555555805400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 57.312622] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.313372] CR2: 00007f7effe346f4 CR3: 000000000e73a000 CR4: 0000000000350ee0 [ 57.314330] Call Trace: [ 57.314714] [ 57.315043] nf_ct_net_init+0x224/0x3d0 [ 57.315617] ? __pfx_nf_ct_net_init+0x10/0x10 [ 57.316225] ops_init+0xbb/0x6b0 [ 57.316720] setup_net+0x3d9/0x990 [ 57.317196] ? down_read_killable+0x1d7/0x4e0 [ 57.317821] ? __pfx_setup_net+0x10/0x10 [ 57.318358] ? copy_net_ns+0x17c/0x770 [ 57.318943] copy_net_ns+0x321/0x770 [ 57.319447] create_new_namespaces+0x3f6/0xb30 [ 57.320103] unshare_nsproxy_namespaces+0xc1/0x200 [ 57.320781] ksys_unshare+0x44d/0x8e0 [ 57.321271] ? __pfx_ksys_unshare+0x10/0x10 [ 57.321846] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 57.322585] __x64_sys_unshare+0x31/0x40 [ 57.323109] do_syscall_64+0x3f/0x90 [ 57.323613] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 57.324253] RIP: 0033:0x7fb87ea3f0d7 [ 57.324744] 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 [ 57.326917] RSP: 002b:00007fffd8f17658 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 57.327868] RAX: ffffffffffffffda RBX: 00007fffd8f17c98 RCX: 00007fb87ea3f0d7 [ 57.328776] RDX: 00007fb87eaa941f RSI: 00007fffd8f175f0 RDI: 0000000040000000 [ 57.329699] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fffd8f17400 [ 57.330609] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fb87eb51bf0 [ 57.331502] R13: 00007fffd8f17730 R14: 0000000000000000 R15: 00000000000000f8 [ 57.332428] [ 57.332771] irq event stamp: 11803 [ 57.333201] hardirqs last enabled at (11813): [] __up_console_sem+0x78/0x80 [ 57.334285] hardirqs last disabled at (11824): [] __up_console_sem+0x5d/0x80 [ 57.335416] softirqs last enabled at (11498): [] irq_exit_rcu+0x93/0xc0 [ 57.336467] softirqs last disabled at (11493): [] irq_exit_rcu+0x93/0xc0 [ 57.337549] ---[ end trace 0000000000000000 ]--- [ 58.876057] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 60.923616] Bluetooth: hci0: command 0x041b tx timeout executing program [ 62.971665] Bluetooth: hci0: command 0x040f tx timeout [ 65.019577] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 19:37:58 Registers: info registers vcpu 0 RAX=0000000000024c7b 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=00007fa1daf26070 CR3=000000000ebca000 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=2039353a37333a39312036312079614d XMM01=5d3539363830322e37352020205b203a XMM02=75636578652d7a7973203a6d6d6f4320 XMM03=20202020202020572020202020202020 XMM04=6e2d3263722d302e342e362020202020 XMM05=3a6465746e69615420302e726f747563 XMM06=32203a4449502031203a555043205d35 XMM07=6e72656b2072656c6c616b7a79732039 XMM08=7475636578652d7a7973223d6d6d6f63 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000000000038 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507685 RDI=ffffffff87f27c00 RBP=ffffffff87f27bc0 RSP=ffff88801ed87618 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000038 R11=0000000000000001 R12=0000000000000038 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 0000555555805400 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=00007f7effe346f4 CR3=000000000e73a000 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