syzkaller login: [ 34.601333] sshd (218) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:56886' (ECDSA) to the list of known hosts. 2023/05/16 15:06:12 fuzzer started 2023/05/16 15:06:12 dialing manager at localhost:35573 2023/05/16 15:06:12 checking machine... 2023/05/16 15:06:12 checking revisions... [ 36.769897] kmemleak: Automatic memory scanning thread ended 2023/05/16 15:06:12 testing simple program... [ 36.835963] cgroup: Unknown subsys name 'net' [ 36.902764] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 48.859156] audit: type=1400 audit(1684249584.729:6): 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 [ 49.985812] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 49.988566] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 49.990286] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 49.993410] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 49.995271] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 49.996895] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 50.420272] ------------[ cut here ]------------ [ 50.420986] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 50.422882] WARNING: CPU: 0 PID: 260 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 50.424065] Modules linked in: [ 50.424545] CPU: 0 PID: 260 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 50.428561] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 50.429783] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 50.430605] 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 [ 50.433305] RSP: 0018:ffff88801029fc00 EFLAGS: 00010282 [ 50.434138] RAX: 0000000000000000 RBX: ffff8880165b0840 RCX: 0000000000000000 [ 50.435249] RDX: ffff88801473d1c0 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 50.436328] RBP: ffff8880165b0854 R08: 0000000000000001 R09: 0000000000000000 [ 50.437421] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 50.438517] R13: ffffffff84e223a0 R14: ffff8880165b0848 R15: ffffffff84d73340 [ 50.439578] FS: 0000555556185400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 50.440642] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.441401] CR2: 00007ffca032e000 CR3: 000000000fcfe000 CR4: 0000000000350ef0 [ 50.442356] Call Trace: [ 50.442738] [ 50.443069] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 50.443754] ipv4_frags_init_net+0x269/0x440 [ 50.444344] ops_init+0xbb/0x6b0 [ 50.444841] setup_net+0x3d9/0x990 [ 50.445324] ? down_read_killable+0x1d7/0x4e0 [ 50.445955] ? __pfx_setup_net+0x10/0x10 [ 50.446531] ? copy_net_ns+0x17c/0x770 [ 50.447079] copy_net_ns+0x321/0x770 [ 50.447618] create_new_namespaces+0x3f6/0xb30 [ 50.448239] unshare_nsproxy_namespaces+0xc1/0x200 [ 50.448923] ksys_unshare+0x44d/0x8e0 [ 50.449449] ? __pfx_ksys_unshare+0x10/0x10 [ 50.450060] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 50.450872] __x64_sys_unshare+0x31/0x40 [ 50.451423] do_syscall_64+0x3f/0x90 [ 50.451956] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 50.452667] RIP: 0033:0x7f161e8a00d7 [ 50.453163] 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 [ 50.455461] RSP: 002b:00007ffff761bca8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 50.456455] RAX: ffffffffffffffda RBX: 00007ffff761c2e8 RCX: 00007f161e8a00d7 [ 50.457394] RDX: 00007f161e90a41f RSI: 00007ffff761bc40 RDI: 0000000040000000 [ 50.458329] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffff761ba50 [ 50.459288] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f161e9b2bf0 [ 50.460223] R13: 00007ffff761bd80 R14: 0000000000000000 R15: 00000000000000f8 [ 50.461194] [ 50.461546] irq event stamp: 8797 [ 50.461995] hardirqs last enabled at (8807): [] __up_console_sem+0x78/0x80 [ 50.463125] hardirqs last disabled at (8818): [] __up_console_sem+0x5d/0x80 [ 50.464242] softirqs last enabled at (8298): [] irq_exit_rcu+0x93/0xc0 [ 50.465332] softirqs last disabled at (8287): [] irq_exit_rcu+0x93/0xc0 [ 50.466425] ---[ end trace 0000000000000000 ]--- [ 50.472290] ------------[ cut here ]------------ [ 50.472953] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 50.474773] WARNING: CPU: 0 PID: 260 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 50.475905] Modules linked in: [ 50.476343] CPU: 0 PID: 260 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 50.477566] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 50.478641] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 50.479341] 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 [ 50.481669] RSP: 0018:ffff88801029fc00 EFLAGS: 00010282 [ 50.482368] RAX: 0000000000000000 RBX: ffff88800f6ab640 RCX: 0000000000000000 [ 50.483347] RDX: ffff88801473d1c0 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 50.484283] RBP: ffff88800f6ab654 R08: 0000000000000001 R09: 0000000000000000 [ 50.485225] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 50.486176] R13: ffffffff84e223a0 R14: ffff88800f6ab648 R15: ffffffff84da62e0 [ 50.487133] FS: 0000555556185400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 50.488194] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.488990] CR2: 00007ffca032e000 CR3: 000000000fcfe000 CR4: 0000000000350ef0 [ 50.489939] Call Trace: [ 50.490289] [ 50.490632] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 50.491302] ipv6_frags_init_net+0x206/0x3c0 [ 50.491925] ops_init+0xbb/0x6b0 [ 50.492402] setup_net+0x3d9/0x990 [ 50.492908] ? down_read_killable+0x1d7/0x4e0 [ 50.493539] ? __pfx_setup_net+0x10/0x10 [ 50.494082] ? copy_net_ns+0x17c/0x770 [ 50.494647] copy_net_ns+0x321/0x770 [ 50.495173] create_new_namespaces+0x3f6/0xb30 [ 50.495830] unshare_nsproxy_namespaces+0xc1/0x200 [ 50.496518] ksys_unshare+0x44d/0x8e0 [ 50.497050] ? __pfx_ksys_unshare+0x10/0x10 [ 50.497666] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 50.498428] __x64_sys_unshare+0x31/0x40 [ 50.499024] do_syscall_64+0x3f/0x90 [ 50.499556] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 50.500249] RIP: 0033:0x7f161e8a00d7 [ 50.500775] 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 [ 50.503098] RSP: 002b:00007ffff761bca8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 50.504114] RAX: ffffffffffffffda RBX: 00007ffff761c2e8 RCX: 00007f161e8a00d7 [ 50.505053] RDX: 00007f161e90a41f RSI: 00007ffff761bc40 RDI: 0000000040000000 [ 50.505996] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffff761ba50 [ 50.506940] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f161e9b2bf0 [ 50.507895] R13: 00007ffff761bd80 R14: 0000000000000000 R15: 00000000000000f8 [ 50.508856] [ 50.509177] irq event stamp: 10587 [ 50.509670] hardirqs last enabled at (10599): [] __up_console_sem+0x78/0x80 [ 50.510831] hardirqs last disabled at (10610): [] __up_console_sem+0x5d/0x80 [ 50.511988] softirqs last enabled at (10088): [] irq_exit_rcu+0x93/0xc0 [ 50.513101] softirqs last disabled at (10083): [] irq_exit_rcu+0x93/0xc0 [ 50.514211] ---[ end trace 0000000000000000 ]--- [ 50.515778] ------------[ cut here ]------------ [ 50.516397] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 50.518382] WARNING: CPU: 0 PID: 260 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 50.519535] Modules linked in: [ 50.519962] CPU: 0 PID: 260 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 50.521182] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 50.522248] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 50.522974] 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 [ 50.525276] RSP: 0018:ffff88801029fbf0 EFLAGS: 00010286 [ 50.526003] RAX: 0000000000000000 RBX: ffff88800f6ab040 RCX: 0000000000000000 [ 50.526945] RDX: ffff88801473d1c0 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 50.527888] RBP: ffff88800f6ab054 R08: 0000000000000001 R09: 0000000000000000 [ 50.528824] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 50.529778] R13: ffffffff84e223a0 R14: ffff88800f6ab048 R15: ffffffff84daf020 [ 50.530713] FS: 0000555556185400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 50.531783] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.532575] CR2: 00007ffca032e000 CR3: 000000000fcfe000 CR4: 0000000000350ef0 [ 50.533526] Call Trace: [ 50.533870] [ 50.534186] nf_ct_net_init+0x224/0x3d0 [ 50.534766] ? __pfx_nf_ct_net_init+0x10/0x10 [ 50.535397] ops_init+0xbb/0x6b0 [ 50.535908] setup_net+0x3d9/0x990 [ 50.536393] ? down_read_killable+0x1d7/0x4e0 [ 50.537025] ? __pfx_setup_net+0x10/0x10 [ 50.537623] ? copy_net_ns+0x17c/0x770 [ 50.538166] copy_net_ns+0x321/0x770 [ 50.538712] create_new_namespaces+0x3f6/0xb30 [ 50.539350] unshare_nsproxy_namespaces+0xc1/0x200 [ 50.540038] ksys_unshare+0x44d/0x8e0 [ 50.540600] ? __pfx_ksys_unshare+0x10/0x10 [ 50.541185] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 50.541975] __x64_sys_unshare+0x31/0x40 [ 50.542566] do_syscall_64+0x3f/0x90 [ 50.543094] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 50.543805] RIP: 0033:0x7f161e8a00d7 [ 50.544301] 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 [ 50.546601] RSP: 002b:00007ffff761bca8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 50.547618] RAX: ffffffffffffffda RBX: 00007ffff761c2e8 RCX: 00007f161e8a00d7 [ 50.548570] RDX: 00007f161e90a41f RSI: 00007ffff761bc40 RDI: 0000000040000000 [ 50.549508] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffff761ba50 [ 50.550427] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f161e9b2bf0 [ 50.551394] R13: 00007ffff761bd80 R14: 0000000000000000 R15: 00000000000000f8 [ 50.552359] [ 50.552719] irq event stamp: 11347 [ 50.553182] hardirqs last enabled at (11357): [] __up_console_sem+0x78/0x80 [ 50.554344] hardirqs last disabled at (11368): [] __up_console_sem+0x5d/0x80 [ 50.555539] softirqs last enabled at (11120): [] irq_exit_rcu+0x93/0xc0 [ 50.556687] softirqs last disabled at (11115): [] irq_exit_rcu+0x93/0xc0 [ 50.557824] ---[ end trace 0000000000000000 ]--- executing program [ 52.071232] Bluetooth: hci0: command 0x0409 tx timeout [ 54.118837] Bluetooth: hci0: command 0x041b tx timeout executing program [ 56.166566] Bluetooth: hci0: command 0x040f tx timeout executing program [ 58.214555] Bluetooth: hci0: command 0x0419 tx timeout VM DIAGNOSIS: 15:06:25 Registers: info registers vcpu 0 RAX=0000000000000030 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507685 RDI=ffffffff87f27c00 RBP=ffffffff87f27bc0 RSP=ffff88801029f5f0 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000030 R11=0000000000000001 R12=0000000000000030 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 0000555556185400 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=00007ffca032e000 CR3=000000000fcfe000 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=0000000000035cc9 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=00007f21d3ed8370 CR3=000000000e350000 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=000000000000000000000000000000ff XMM02=000000000000000000000000000000ff XMM03=6465746e69615420302e726f74756365 XMM04=636f72703d7373616c63742030733a74 XMM05=3a755f6d65747379733d747865746e6f XMM06=5f6d65747379733a755f6d6574737973 XMM07=00000000000000000000000000000000 XMM08=34386666666666666666203a33315200 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000