syzkaller login: [ 41.887056] sshd (216) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:46733' (ECDSA) to the list of known hosts. 2023/05/16 10:52:02 fuzzer started 2023/05/16 10:52:02 dialing manager at localhost:35573 2023/05/16 10:52:02 checking machine... 2023/05/16 10:52:02 checking revisions... [ 44.083489] kmemleak: Automatic memory scanning thread ended 2023/05/16 10:52:02 testing simple program... [ 44.153306] cgroup: Unknown subsys name 'net' [ 44.238921] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 57.978827] audit: type=1400 audit(1684234336.476:6): 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 executing program [ 59.108136] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 59.110733] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 59.112370] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 59.115705] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 59.118008] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 59.119270] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 59.528664] ------------[ cut here ]------------ [ 59.529300] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 59.531266] WARNING: CPU: 1 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 59.532375] Modules linked in: [ 59.532811] CPU: 1 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 59.536880] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 59.537913] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 59.538537] 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 [ 59.540839] RSP: 0018:ffff88801f0ffc00 EFLAGS: 00010282 [ 59.541488] RAX: 0000000000000000 RBX: ffff88800cf47040 RCX: 0000000000000000 [ 59.542382] RDX: ffff888015913680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 59.543266] RBP: ffff88800cf47054 R08: 0000000000000001 R09: 0000000000000000 [ 59.544188] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 59.545097] R13: ffffffff84e223a0 R14: ffff88800cf47048 R15: ffffffff84d73340 [ 59.545990] FS: 00005555555ea400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 59.546984] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.547729] CR2: 00007f228f7996f4 CR3: 00000000094aa000 CR4: 0000000000350ee0 [ 59.548577] Call Trace: [ 59.548936] [ 59.549236] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 59.549919] ipv4_frags_init_net+0x269/0x440 [ 59.550471] ops_init+0xbb/0x6b0 [ 59.550948] setup_net+0x3d9/0x990 [ 59.551399] ? down_read_killable+0x1d7/0x4e0 [ 59.552026] ? __pfx_setup_net+0x10/0x10 [ 59.552528] ? copy_net_ns+0x17c/0x770 [ 59.553059] copy_net_ns+0x321/0x770 [ 59.553539] create_new_namespaces+0x3f6/0xb30 [ 59.554155] unshare_nsproxy_namespaces+0xc1/0x200 [ 59.554799] ksys_unshare+0x44d/0x8e0 [ 59.555291] ? __pfx_ksys_unshare+0x10/0x10 [ 59.555871] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 59.556574] __x64_sys_unshare+0x31/0x40 [ 59.557123] do_syscall_64+0x3f/0x90 [ 59.557595] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 59.558280] RIP: 0033:0x7fec56fae0d7 [ 59.558804] 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 [ 59.560959] RSP: 002b:00007fffcb922b48 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 59.561900] RAX: ffffffffffffffda RBX: 00007fffcb923188 RCX: 00007fec56fae0d7 [ 59.562781] RDX: 00007fec5701841f RSI: 00007fffcb922ae0 RDI: 0000000040000000 [ 59.563672] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fffcb9228f0 [ 59.564530] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fec570c0bf0 [ 59.565408] R13: 00007fffcb922c20 R14: 0000000000000000 R15: 00000000000000f8 [ 59.566309] [ 59.566637] irq event stamp: 8379 [ 59.567055] hardirqs last enabled at (8389): [] __up_console_sem+0x78/0x80 [ 59.568176] hardirqs last disabled at (8400): [] __up_console_sem+0x5d/0x80 [ 59.569243] softirqs last enabled at (7872): [] irq_exit_rcu+0x93/0xc0 [ 59.570280] softirqs last disabled at (7867): [] irq_exit_rcu+0x93/0xc0 [ 59.571299] ---[ end trace 0000000000000000 ]--- [ 59.577070] ------------[ cut here ]------------ [ 59.577800] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 59.579449] WARNING: CPU: 1 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 59.580517] Modules linked in: [ 59.580953] CPU: 1 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 59.582123] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 59.583133] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 59.583822] 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 [ 59.586014] RSP: 0018:ffff88801f0ffc00 EFLAGS: 00010282 [ 59.586742] RAX: 0000000000000000 RBX: ffff888008d52240 RCX: 0000000000000000 [ 59.587647] RDX: ffff888015913680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 59.588523] RBP: ffff888008d52254 R08: 0000000000000001 R09: 0000000000000000 [ 59.589398] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 59.590272] R13: ffffffff84e223a0 R14: ffff888008d52248 R15: ffffffff84da62e0 [ 59.591155] FS: 00005555555ea400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 59.592158] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.592899] CR2: 00007f228f7996f4 CR3: 00000000094aa000 CR4: 0000000000350ee0 [ 59.593784] Call Trace: [ 59.594105] [ 59.594407] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 59.595053] ipv6_frags_init_net+0x206/0x3c0 [ 59.595666] ops_init+0xbb/0x6b0 [ 59.596138] setup_net+0x3d9/0x990 [ 59.596636] ? down_read_killable+0x1d7/0x4e0 [ 59.597201] ? __pfx_setup_net+0x10/0x10 [ 59.597738] ? copy_net_ns+0x17c/0x770 [ 59.598241] copy_net_ns+0x321/0x770 [ 59.598748] create_new_namespaces+0x3f6/0xb30 [ 59.599330] unshare_nsproxy_namespaces+0xc1/0x200 [ 59.599990] ksys_unshare+0x44d/0x8e0 [ 59.600484] ? __pfx_ksys_unshare+0x10/0x10 [ 59.601062] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 59.601800] __x64_sys_unshare+0x31/0x40 [ 59.602313] do_syscall_64+0x3f/0x90 [ 59.602842] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 59.603471] RIP: 0033:0x7fec56fae0d7 [ 59.603984] 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 [ 59.606190] RSP: 002b:00007fffcb922b48 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 59.607164] RAX: ffffffffffffffda RBX: 00007fffcb923188 RCX: 00007fec56fae0d7 [ 59.608089] RDX: 00007fec5701841f RSI: 00007fffcb922ae0 RDI: 0000000040000000 [ 59.608972] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fffcb9228f0 [ 59.609848] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fec570c0bf0 [ 59.610740] R13: 00007fffcb922c20 R14: 0000000000000000 R15: 00000000000000f8 [ 59.611659] [ 59.611960] irq event stamp: 10195 [ 59.612396] hardirqs last enabled at (10205): [] __up_console_sem+0x78/0x80 [ 59.613474] hardirqs last disabled at (10216): [] __up_console_sem+0x5d/0x80 [ 59.614614] softirqs last enabled at (10068): [] irq_exit_rcu+0x93/0xc0 [ 59.615678] softirqs last disabled at (10059): [] irq_exit_rcu+0x93/0xc0 [ 59.616719] ---[ end trace 0000000000000000 ]--- [ 59.618097] ------------[ cut here ]------------ [ 59.618788] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 59.620717] WARNING: CPU: 1 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 59.621787] Modules linked in: [ 59.622194] CPU: 1 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 59.623406] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 59.624461] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 59.625136] 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 [ 59.627282] RSP: 0018:ffff88801f0ffbf0 EFLAGS: 00010286 [ 59.627977] RAX: 0000000000000000 RBX: ffff8880145c8240 RCX: 0000000000000000 [ 59.628860] RDX: ffff888015913680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 59.629738] RBP: ffff8880145c8254 R08: 0000000000000001 R09: 0000000000000000 [ 59.630587] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 59.631466] R13: ffffffff84e223a0 R14: ffff8880145c8248 R15: ffffffff84daf020 [ 59.632386] FS: 00005555555ea400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 59.633402] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.634150] CR2: 00007f228f7996f4 CR3: 00000000094aa000 CR4: 0000000000350ee0 [ 59.635041] Call Trace: [ 59.635371] [ 59.635728] nf_ct_net_init+0x224/0x3d0 [ 59.636238] ? __pfx_nf_ct_net_init+0x10/0x10 [ 59.636840] ops_init+0xbb/0x6b0 [ 59.637281] setup_net+0x3d9/0x990 [ 59.637759] ? down_read_killable+0x1d7/0x4e0 [ 59.638320] ? __pfx_setup_net+0x10/0x10 [ 59.638849] ? copy_net_ns+0x17c/0x770 [ 59.639347] copy_net_ns+0x321/0x770 [ 59.639870] create_new_namespaces+0x3f6/0xb30 [ 59.640457] unshare_nsproxy_namespaces+0xc1/0x200 [ 59.641143] ksys_unshare+0x44d/0x8e0 [ 59.641664] ? __pfx_ksys_unshare+0x10/0x10 [ 59.642205] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 59.642939] __x64_sys_unshare+0x31/0x40 [ 59.643452] do_syscall_64+0x3f/0x90 [ 59.643973] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 59.644637] RIP: 0033:0x7fec56fae0d7 [ 59.645099] 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 [ 59.647277] RSP: 002b:00007fffcb922b48 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 59.648232] RAX: ffffffffffffffda RBX: 00007fffcb923188 RCX: 00007fec56fae0d7 [ 59.649119] RDX: 00007fec5701841f RSI: 00007fffcb922ae0 RDI: 0000000040000000 [ 59.650021] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fffcb9228f0 [ 59.650937] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fec570c0bf0 [ 59.651847] R13: 00007fffcb922c20 R14: 0000000000000000 R15: 00000000000000f8 [ 59.652754] [ 59.653057] irq event stamp: 11027 [ 59.653482] hardirqs last enabled at (11037): [] __up_console_sem+0x78/0x80 [ 59.654556] hardirqs last disabled at (11048): [] __up_console_sem+0x5d/0x80 [ 59.655646] softirqs last enabled at (10934): [] irq_exit_rcu+0x93/0xc0 [ 59.656685] softirqs last disabled at (10929): [] irq_exit_rcu+0x93/0xc0 [ 59.657712] ---[ end trace 0000000000000000 ]--- [ 61.195419] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 63.242744] Bluetooth: hci0: command 0x041b tx timeout executing program [ 65.291293] Bluetooth: hci0: command 0x040f tx timeout [ 67.338690] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 10:52:18 Registers: info registers vcpu 0 RAX=0000000000000000 RBX=ffff88800c245c28 RCX=0000000000000000 RDX=ffff8880159fd1c0 RSI=ffffffff818d6ad7 RDI=ffff88800c245bf0 RBP=0000000000000001 RSP=ffff888016e07918 R8 =0000000000000007 R9 =0000000000000000 R10=ffff88800c245c28 R11=0000000000000001 R12=ffff88806cdafff8 R13=ffff888014389780 R14=dffffc0000000000 R15=ffff888016e07c40 RIP=ffffffff818d6ae7 RFL=00000216 [----AP-] 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 00007fb580e1a900 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=00007fb580313188 CR3=000000000ee2e000 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=ffffffffffffffffffffffffffffffff XMM01=30306234386136303638616663356134 XMM02=38303062343861363036386166633561 XMM03=2f6c616e72756f6a2f676f6c2f6e7572 XMM04=d8f928da5fab84ed000000000010e150 XMM05=d3fdd5f48436fbd700000000000aead0 XMM06=b580fae64a90594400000000000ae988 XMM07=00000000000000000000000000000000 XMM08=44495f474f4c5359530069253d595449 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000200000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000000000078 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507685 RDI=ffffffff87f27c00 RBP=ffffffff87f27bc0 RSP=ffff88801f0ff5f0 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000078 R11=0000000000000001 R12=0000000000000078 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 00005555555ea400 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=00007f228f7996f4 CR3=00000000094aa000 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