syzkaller login: [ 40.575425] sshd (209) used greatest stack depth: 24024 bytes left Warning: Permanently added '[localhost]:32537' (ECDSA) to the list of known hosts. 2023/05/17 08:34:54 fuzzer started 2023/05/17 08:34:54 dialing manager at localhost:35573 2023/05/17 08:34:54 checking machine... 2023/05/17 08:34:54 checking revisions... [ 46.268041] kmemleak: Automatic memory scanning thread ended 2023/05/17 08:34:55 testing simple program... [ 46.330912] cgroup: Unknown subsys name 'net' [ 46.402511] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 59.612738] audit: type=1400 audit(1684312508.385:6): 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 [ 60.744433] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 60.746957] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 60.748376] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 60.751894] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 60.753400] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 60.754777] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 executing program [ 61.174720] ------------[ cut here ]------------ [ 61.175694] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 61.177776] WARNING: CPU: 1 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 61.179120] Modules linked in: [ 61.179938] CPU: 1 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 61.182337] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 61.184689] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 61.185581] 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 [ 61.188304] RSP: 0018:ffff88801f56fc00 EFLAGS: 00010282 [ 61.189175] RAX: 0000000000000000 RBX: ffff88800cec9c40 RCX: 0000000000000000 [ 61.190297] RDX: ffff88801f560000 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 61.191419] RBP: ffff88800cec9c54 R08: 0000000000000001 R09: 0000000000000000 [ 61.192535] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 61.193669] R13: ffffffff84e223a0 R14: ffff88800cec9c48 R15: ffffffff84d73340 [ 61.194780] FS: 00005555562e8400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 61.196030] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 61.196973] CR2: 0000557e68fc42e0 CR3: 000000000e70c000 CR4: 0000000000350ee0 [ 61.198102] Call Trace: [ 61.198553] [ 61.198926] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 61.199716] ipv4_frags_init_net+0x269/0x440 [ 61.200412] ops_init+0xbb/0x6b0 [ 61.201018] setup_net+0x3d9/0x990 [ 61.201450] ? down_read_killable+0x1d7/0x4e0 [ 61.202029] ? __pfx_setup_net+0x10/0x10 [ 61.202540] ? copy_net_ns+0x17c/0x770 [ 61.203019] copy_net_ns+0x321/0x770 [ 61.203478] create_new_namespaces+0x3f6/0xb30 [ 61.204065] unshare_nsproxy_namespaces+0xc1/0x200 [ 61.204680] ksys_unshare+0x44d/0x8e0 [ 61.205176] ? __pfx_ksys_unshare+0x10/0x10 [ 61.205724] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 61.206398] __x64_sys_unshare+0x31/0x40 [ 61.206921] do_syscall_64+0x3f/0x90 [ 61.207371] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 61.208007] RIP: 0033:0x7f05300140d7 [ 61.208453] 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 [ 61.210521] RSP: 002b:00007ffd35d47c78 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 61.211382] RAX: ffffffffffffffda RBX: 00007ffd35d482b8 RCX: 00007f05300140d7 [ 61.212226] RDX: 00007f053007e41f RSI: 00007ffd35d47c10 RDI: 0000000040000000 [ 61.213130] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd35d47a20 [ 61.214030] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f0530126bf0 [ 61.214909] R13: 00007ffd35d47d50 R14: 0000000000000000 R15: 00000000000000f8 [ 61.215841] [ 61.216140] irq event stamp: 8283 [ 61.216595] hardirqs last enabled at (8295): [] __up_console_sem+0x78/0x80 [ 61.217673] hardirqs last disabled at (8306): [] __up_console_sem+0x5d/0x80 [ 61.218746] softirqs last enabled at (7830): [] irq_exit_rcu+0x93/0xc0 [ 61.219773] softirqs last disabled at (7813): [] irq_exit_rcu+0x93/0xc0 [ 61.220793] ---[ end trace 0000000000000000 ]--- [ 61.225950] ------------[ cut here ]------------ [ 61.226629] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 61.228370] WARNING: CPU: 1 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 61.229470] Modules linked in: [ 61.229918] CPU: 1 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 61.231084] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 61.232099] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 61.232775] 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 [ 61.234976] RSP: 0018:ffff88801f56fc00 EFLAGS: 00010282 [ 61.235667] RAX: 0000000000000000 RBX: ffff88800d68c840 RCX: 0000000000000000 [ 61.236556] RDX: ffff88801f560000 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 61.237431] RBP: ffff88800d68c854 R08: 0000000000000001 R09: 0000000000000000 [ 61.238315] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 61.239211] R13: ffffffff84e223a0 R14: ffff88800d68c848 R15: ffffffff84da62e0 [ 61.240105] FS: 00005555562e8400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 61.241127] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 61.241872] CR2: 0000557e68fc42e0 CR3: 000000000e70c000 CR4: 0000000000350ee0 [ 61.242766] Call Trace: [ 61.243095] [ 61.243395] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 61.244054] ipv6_frags_init_net+0x206/0x3c0 [ 61.244644] ops_init+0xbb/0x6b0 [ 61.245108] setup_net+0x3d9/0x990 [ 61.245605] ? down_read_killable+0x1d7/0x4e0 [ 61.246179] ? __pfx_setup_net+0x10/0x10 [ 61.246724] ? copy_net_ns+0x17c/0x770 [ 61.247240] copy_net_ns+0x321/0x770 [ 61.247751] create_new_namespaces+0x3f6/0xb30 [ 61.248339] unshare_nsproxy_namespaces+0xc1/0x200 [ 61.248995] ksys_unshare+0x44d/0x8e0 [ 61.249512] ? __pfx_ksys_unshare+0x10/0x10 [ 61.250053] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 61.250798] __x64_sys_unshare+0x31/0x40 [ 61.251319] do_syscall_64+0x3f/0x90 [ 61.251825] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 61.252474] RIP: 0033:0x7f05300140d7 [ 61.252982] 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 [ 61.255163] RSP: 002b:00007ffd35d47c78 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 61.256104] RAX: ffffffffffffffda RBX: 00007ffd35d482b8 RCX: 00007f05300140d7 [ 61.257025] RDX: 00007f053007e41f RSI: 00007ffd35d47c10 RDI: 0000000040000000 [ 61.257909] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd35d47a20 [ 61.258799] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f0530126bf0 [ 61.259698] R13: 00007ffd35d47d50 R14: 0000000000000000 R15: 00000000000000f8 [ 61.260611] [ 61.260929] irq event stamp: 9989 [ 61.261352] hardirqs last enabled at (9999): [] __up_console_sem+0x78/0x80 [ 61.262411] hardirqs last disabled at (10010): [] __up_console_sem+0x5d/0x80 [ 61.263504] softirqs last enabled at (9506): [] irq_exit_rcu+0x93/0xc0 [ 61.264542] softirqs last disabled at (9501): [] irq_exit_rcu+0x93/0xc0 [ 61.265592] ---[ end trace 0000000000000000 ]--- [ 61.266948] ------------[ cut here ]------------ [ 61.267570] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 61.269574] WARNING: CPU: 1 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 61.270628] Modules linked in: [ 61.271028] CPU: 1 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 61.272193] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 61.273218] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 61.273879] 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 [ 61.276053] RSP: 0018:ffff88801f56fbf0 EFLAGS: 00010286 [ 61.276739] RAX: 0000000000000000 RBX: ffff88800d68c240 RCX: 0000000000000000 [ 61.277651] RDX: ffff88801f560000 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 61.278553] RBP: ffff88800d68c254 R08: 0000000000000001 R09: 0000000000000000 [ 61.279411] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 61.280304] R13: ffffffff84e223a0 R14: ffff88800d68c248 R15: ffffffff84daf020 [ 61.281186] FS: 00005555562e8400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 61.282180] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 61.282926] CR2: 0000557e68fc42e0 CR3: 000000000e70c000 CR4: 0000000000350ee0 [ 61.283820] Call Trace: [ 61.284150] [ 61.284455] nf_ct_net_init+0x224/0x3d0 [ 61.285025] ? __pfx_nf_ct_net_init+0x10/0x10 [ 61.285691] ops_init+0xbb/0x6b0 [ 61.286142] setup_net+0x3d9/0x990 [ 61.286628] ? down_read_killable+0x1d7/0x4e0 [ 61.287205] ? __pfx_setup_net+0x10/0x10 [ 61.287742] ? copy_net_ns+0x17c/0x770 [ 61.288251] copy_net_ns+0x321/0x770 [ 61.288761] create_new_namespaces+0x3f6/0xb30 [ 61.289354] unshare_nsproxy_namespaces+0xc1/0x200 [ 61.289997] ksys_unshare+0x44d/0x8e0 [ 61.290513] ? __pfx_ksys_unshare+0x10/0x10 [ 61.291052] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 61.291800] __x64_sys_unshare+0x31/0x40 [ 61.292327] do_syscall_64+0x3f/0x90 [ 61.292839] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 61.293541] RIP: 0033:0x7f05300140d7 [ 61.294005] 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 [ 61.296210] RSP: 002b:00007ffd35d47c78 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 61.297166] RAX: ffffffffffffffda RBX: 00007ffd35d482b8 RCX: 00007f05300140d7 [ 61.298059] RDX: 00007f053007e41f RSI: 00007ffd35d47c10 RDI: 0000000040000000 [ 61.298956] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd35d47a20 [ 61.299847] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f0530126bf0 [ 61.300731] R13: 00007ffd35d47d50 R14: 0000000000000000 R15: 00000000000000f8 [ 61.301647] [ 61.301946] irq event stamp: 10803 [ 61.302370] hardirqs last enabled at (10813): [] __up_console_sem+0x78/0x80 [ 61.303451] hardirqs last disabled at (10824): [] __up_console_sem+0x5d/0x80 [ 61.304538] softirqs last enabled at (10676): [] irq_exit_rcu+0x93/0xc0 [ 61.305595] softirqs last disabled at (10671): [] irq_exit_rcu+0x93/0xc0 [ 61.306622] ---[ end trace 0000000000000000 ]--- [ 62.822311] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 64.869767] Bluetooth: hci0: command 0x041b tx timeout [ 66.917568] Bluetooth: hci0: command 0x040f tx timeout executing program [ 68.966630] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 08:35:08 Registers: info registers vcpu 0 RAX=000000000002475b 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=00000202 [-------] 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=00007f51ab9f6a80 CR3=000000000ecfa000 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=7e813f9d1081e7b03b42c8fadc8a5b71 XMM02=6b1e99b806172e3b00000000000aea28 XMM03=ac8bc31478ec851100000000000aefa0 XMM04=acf7b199d8444f47000000000013c560 XMM05=d3fdd5f48436fbd700000000000aead0 XMM06=8dfd6f1640b54e1300000000000ae988 XMM07=a1fcdcf819d7e1e500000000000ae728 XMM08=44495f474f4c5359530069253d595449 XMM09=00000000000000000000000000000000 XMM10=00000000000000000020002000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000000000000 RBX=4c97b94d5e7d44dc RCX=ffffffff812d1c8b RDX=1ffff11003eac13d RSI=0000000000000008 RDI=ffffffff877969c0 RBP=ffffffff877a0320 RSP=ffff88806cf097c8 R8 =0000000000000000 R9 =0000000000000004 R10=ffffffff877969c7 R11=0000000000000001 R12=ffff88801f560a90 R13=ffff88801f560000 R14=dffffc0000000000 R15=0000000000000000 RIP=ffffffff812d170b RFL=00000012 [----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 00005555562e8400 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=0000557e68fc42e0 CR3=000000000e70c000 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