syzkaller login: [ 35.609020] sshd (225) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:15811' (ECDSA) to the list of known hosts. 2023/05/16 12:47:10 fuzzer started 2023/05/16 12:47:10 dialing manager at localhost:35573 2023/05/16 12:47:10 checking machine... 2023/05/16 12:47:10 checking revisions... [ 36.807467] kmemleak: Automatic memory scanning thread ended 2023/05/16 12:47:10 testing simple program... [ 36.880788] cgroup: Unknown subsys name 'net' [ 36.992804] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 48.952010] audit: type=1400 audit(1684241242.960:6): 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 [ 50.051580] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 50.053059] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 50.055682] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 50.058289] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 50.059854] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 50.061062] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 50.448555] ------------[ cut here ]------------ [ 50.449601] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 50.451742] WARNING: CPU: 1 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 50.453061] Modules linked in: [ 50.453911] CPU: 1 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 50.458466] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 50.459800] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 50.460702] 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 [ 50.463206] RSP: 0018:ffff8880195efc00 EFLAGS: 00010282 [ 50.464157] RAX: 0000000000000000 RBX: ffff88800df34c40 RCX: 0000000000000000 [ 50.465327] RDX: ffff88800fdfd1c0 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 50.466508] RBP: ffff88800df34c54 R08: 0000000000000001 R09: 0000000000000000 [ 50.467560] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 50.468780] R13: ffffffff84e223a0 R14: ffff88800df34c48 R15: ffffffff84d73340 [ 50.469882] FS: 0000555556e8b400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 50.471230] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.472024] CR2: 00007f6b273ad518 CR3: 000000000ef8c000 CR4: 0000000000350ee0 [ 50.473233] Call Trace: [ 50.473721] [ 50.474130] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 50.474984] ipv4_frags_init_net+0x269/0x440 [ 50.475785] ops_init+0xbb/0x6b0 [ 50.476423] setup_net+0x3d9/0x990 [ 50.477049] ? down_read_killable+0x1d7/0x4e0 [ 50.477874] ? __pfx_setup_net+0x10/0x10 [ 50.478618] ? copy_net_ns+0x17c/0x770 [ 50.479354] copy_net_ns+0x321/0x770 [ 50.480025] create_new_namespaces+0x3f6/0xb30 [ 50.480848] unshare_nsproxy_namespaces+0xc1/0x200 [ 50.481709] ksys_unshare+0x44d/0x8e0 [ 50.482414] ? __pfx_ksys_unshare+0x10/0x10 [ 50.483157] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 50.484161] __x64_sys_unshare+0x31/0x40 [ 50.484919] do_syscall_64+0x3f/0x90 [ 50.485539] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 50.486190] RIP: 0033:0x7f6404ff50d7 [ 50.486694] 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 [ 50.488872] RSP: 002b:00007ffd09b1fee8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 50.489852] RAX: ffffffffffffffda RBX: 00007ffd09b20528 RCX: 00007f6404ff50d7 [ 50.490759] RDX: 00007f640505f41f RSI: 00007ffd09b1fe80 RDI: 0000000040000000 [ 50.491649] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd09b1fc90 [ 50.492588] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f6405107bf0 [ 50.493494] R13: 00007ffd09b1ffc0 R14: 0000000000000000 R15: 00000000000000f8 [ 50.494434] [ 50.494740] irq event stamp: 8059 [ 50.495141] hardirqs last enabled at (8069): [] __up_console_sem+0x78/0x80 [ 50.496225] hardirqs last disabled at (8080): [] __up_console_sem+0x5d/0x80 [ 50.497330] softirqs last enabled at (7594): [] irq_exit_rcu+0x93/0xc0 [ 50.498366] softirqs last disabled at (7583): [] irq_exit_rcu+0x93/0xc0 [ 50.499380] ---[ end trace 0000000000000000 ]--- [ 50.505093] ------------[ cut here ]------------ [ 50.505748] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 50.507381] WARNING: CPU: 1 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 50.508429] Modules linked in: [ 50.508836] CPU: 1 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 50.509995] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 50.511004] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 50.511701] 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 [ 50.513943] RSP: 0018:ffff8880195efc00 EFLAGS: 00010282 [ 50.514629] RAX: 0000000000000000 RBX: ffff88800c54a040 RCX: 0000000000000000 [ 50.515517] RDX: ffff88800fdfd1c0 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 50.516403] RBP: ffff88800c54a054 R08: 0000000000000001 R09: 0000000000000000 [ 50.517276] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 50.518151] R13: ffffffff84e223a0 R14: ffff88800c54a048 R15: ffffffff84da62e0 [ 50.519043] FS: 0000555556e8b400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 50.520055] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.520818] CR2: 00007f6b273ad518 CR3: 000000000ef8c000 CR4: 0000000000350ee0 [ 50.521720] Call Trace: [ 50.522048] [ 50.522381] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 50.522993] ipv6_frags_init_net+0x206/0x3c0 [ 50.523573] ops_init+0xbb/0x6b0 [ 50.524012] setup_net+0x3d9/0x990 [ 50.524496] ? down_read_killable+0x1d7/0x4e0 [ 50.525064] ? __pfx_setup_net+0x10/0x10 [ 50.525821] ? copy_net_ns+0x17c/0x770 [ 50.526392] copy_net_ns+0x321/0x770 [ 50.526872] create_new_namespaces+0x3f6/0xb30 [ 50.527494] unshare_nsproxy_namespaces+0xc1/0x200 [ 50.528113] ksys_unshare+0x44d/0x8e0 [ 50.528631] ? __pfx_ksys_unshare+0x10/0x10 [ 50.529193] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 50.529930] __x64_sys_unshare+0x31/0x40 [ 50.530472] do_syscall_64+0x3f/0x90 [ 50.530946] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 50.531623] RIP: 0033:0x7f6404ff50d7 [ 50.532094] 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 [ 50.534292] RSP: 002b:00007ffd09b1fee8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 50.535221] RAX: ffffffffffffffda RBX: 00007ffd09b20528 RCX: 00007f6404ff50d7 [ 50.536115] RDX: 00007f640505f41f RSI: 00007ffd09b1fe80 RDI: 0000000040000000 [ 50.537001] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd09b1fc90 [ 50.537898] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f6405107bf0 [ 50.538776] R13: 00007ffd09b1ffc0 R14: 0000000000000000 R15: 00000000000000f8 [ 50.539686] [ 50.539987] irq event stamp: 10279 [ 50.540443] hardirqs last enabled at (10291): [] __up_console_sem+0x78/0x80 [ 50.541528] hardirqs last disabled at (10302): [] __up_console_sem+0x5d/0x80 [ 50.542587] softirqs last enabled at (9318): [] irq_exit_rcu+0x93/0xc0 [ 50.543627] softirqs last disabled at (9275): [] irq_exit_rcu+0x93/0xc0 [ 50.544656] ---[ end trace 0000000000000000 ]--- [ 50.546207] ------------[ cut here ]------------ [ 50.546879] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 50.548829] WARNING: CPU: 1 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 50.549918] Modules linked in: [ 50.550350] CPU: 1 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 50.551498] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 50.552506] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 50.553144] 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 [ 50.555354] RSP: 0018:ffff8880195efbf0 EFLAGS: 00010286 [ 50.556049] RAX: 0000000000000000 RBX: ffff88800c54a640 RCX: 0000000000000000 [ 50.556928] RDX: ffff88800fdfd1c0 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 50.557814] RBP: ffff88800c54a654 R08: 0000000000000001 R09: 0000000000000000 [ 50.558703] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 50.559593] R13: ffffffff84e223a0 R14: ffff88800c54a648 R15: ffffffff84daf020 [ 50.560486] FS: 0000555556e8b400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 50.561501] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.562232] CR2: 00007f6b273ad518 CR3: 000000000ef8c000 CR4: 0000000000350ee0 [ 50.563158] Call Trace: [ 50.563530] [ 50.563842] nf_ct_net_init+0x224/0x3d0 [ 50.564414] ? __pfx_nf_ct_net_init+0x10/0x10 [ 50.565013] ops_init+0xbb/0x6b0 [ 50.565513] setup_net+0x3d9/0x990 [ 50.565983] ? down_read_killable+0x1d7/0x4e0 [ 50.566603] ? __pfx_setup_net+0x10/0x10 [ 50.567132] ? copy_net_ns+0x17c/0x770 [ 50.567671] copy_net_ns+0x321/0x770 [ 50.568150] create_new_namespaces+0x3f6/0xb30 [ 50.568763] unshare_nsproxy_namespaces+0xc1/0x200 [ 50.569426] ksys_unshare+0x44d/0x8e0 [ 50.569921] ? __pfx_ksys_unshare+0x10/0x10 [ 50.570502] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 50.571226] __x64_sys_unshare+0x31/0x40 [ 50.571795] do_syscall_64+0x3f/0x90 [ 50.572275] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 50.572947] RIP: 0033:0x7f6404ff50d7 [ 50.573451] 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 [ 50.575649] RSP: 002b:00007ffd09b1fee8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 50.576613] RAX: ffffffffffffffda RBX: 00007ffd09b20528 RCX: 00007f6404ff50d7 [ 50.577523] RDX: 00007f640505f41f RSI: 00007ffd09b1fe80 RDI: 0000000040000000 [ 50.578401] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd09b1fc90 [ 50.579250] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f6405107bf0 [ 50.580174] R13: 00007ffd09b1ffc0 R14: 0000000000000000 R15: 00000000000000f8 [ 50.581110] [ 50.581449] irq event stamp: 11045 [ 50.581886] hardirqs last enabled at (11055): [] __up_console_sem+0x78/0x80 [ 50.582946] hardirqs last disabled at (11066): [] __up_console_sem+0x5d/0x80 [ 50.584008] softirqs last enabled at (10740): [] irq_exit_rcu+0x93/0xc0 [ 50.585037] softirqs last disabled at (10735): [] irq_exit_rcu+0x93/0xc0 [ 50.586103] ---[ end trace 0000000000000000 ]--- executing program [ 52.078003] Bluetooth: hci0: command 0x0409 tx timeout [ 54.125943] Bluetooth: hci0: command 0x041b tx timeout executing program [ 56.173455] Bluetooth: hci0: command 0x040f tx timeout executing program [ 58.221376] Bluetooth: hci0: command 0x0419 tx timeout VM DIAGNOSIS: 12:47:24 Registers: info registers vcpu 0 RAX=0000000000020665 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=00007f6b2738da80 CR3=000000000dcf8000 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=504dd91e0c1f3ab35c4b50a83cb6bc85 XMM02=6b1e99b806172e3b00000000000aea28 XMM03=ac8bc31478ec851100000000000aefa0 XMM04=d9b406f97d54c800000000000013bbc0 XMM05=d3fdd5f48436fbd700000000000aead0 XMM06=369d3b454d61712b00000000000ae988 XMM07=a1fcdcf819d7e1e500000000000ae728 XMM08=44495f474f4c5359530069253d595449 XMM09=00000000000000000000000000000000 XMM10=00000000000000000020000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000000000050 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507685 RDI=ffffffff87f27c00 RBP=ffffffff87f27bc0 RSP=ffff8880195ef5f0 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000050 R11=0000000000000001 R12=0000000000000050 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 0000555556e8b400 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=00007f6b273ad518 CR3=000000000ef8c000 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