last executing test programs: kernel console output (not intermixed with test programs): Warning: Permanently added '[localhost]:35766' (ED25519) to the list of known hosts. syzkaller login: [ 48.852729][ T5775] cgroup: Unknown subsys name 'net' [ 48.961812][ T5775] cgroup: Unknown subsys name 'cpuset' [ 48.968080][ T5775] cgroup: Unknown subsys name 'rlimit' [ 49.080676][ T5775] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] SMP KASAN PTI [ 49.084586][ T5775] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] [ 49.088584][ T5775] CPU: 0 UID: 0 PID: 5775 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) [ 49.092418][ T5775] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 [ 49.096568][ T5775] RIP: 0010:validate_page_before_insert+0x2a/0x300 [ 49.099243][ T5775] Code: 55 41 57 41 56 41 55 41 54 53 48 89 f3 49 89 fe 49 bd 00 00 00 00 00 fc ff df e8 f1 3f b3 ff 4c 8d 7b 08 4c 89 f8 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 ff e8 17 b3 16 00 4d 8b 3f 4c 89 fe 48 [ 49.106277][ T5775] RSP: 0018:ffffc90002a5f608 EFLAGS: 00010202 [ 49.108721][ T5775] RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffff888022891cc0 [ 49.111923][ T5775] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888028c71200 [ 49.114736][ T5775] RBP: ffffc90002a5f720 R08: 0000000000000000 R09: 1ffff11021cf81e0 [ 49.117482][ T5775] R10: dffffc0000000000 R11: ffffed1021cf81e1 R12: dffffc0000000000 [ 49.120044][ T5775] R13: dffffc0000000000 R14: ffff888028c71200 R15: 0000000000000008 [ 49.122619][ T5775] FS: 00005555815ad500(0000) GS:ffff8880b8615000(0000) knlGS:0000000000000000 [ 49.125849][ T5775] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 49.128375][ T5775] CR2: 00007f1788fd20b8 CR3: 000000010d8a4000 CR4: 00000000000006f0 [ 49.131515][ T5775] Call Trace: [ 49.132929][ T5775] [ 49.134076][ T5775] insert_page+0x90/0x2c0 [ 49.135781][ T5775] ? __pfx_insert_page+0x10/0x10 [ 49.137816][ T5775] ? vm_insert_page+0x1f1/0x390 [ 49.139780][ T5775] kcov_mmap+0xc3/0x130 [ 49.141497][ T5775] mmap_region+0x18ae/0x20c0 [ 49.143389][ T5775] ? __pfx_mmap_region+0x10/0x10 [ 49.145428][ T5775] ? __pfx_mmap_region+0x10/0x10 [ 49.147548][ T5775] ? aa_file_perm+0x13a/0x1550 [ 49.149499][ T5775] ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10 [ 49.152250][ T5775] ? bpf_lsm_mmap_addr+0x9/0x20 [ 49.154244][ T5775] ? security_mmap_addr+0x71/0x270 [ 49.156225][ T5775] ? shmem_mapping+0xd/0x50 [ 49.157893][ T5775] ? memfd_check_seals_mmap+0xc5/0x200 [ 49.160284][ T5775] do_mmap+0xc45/0x10d0 [ 49.162034][ T5775] ? __pfx_do_mmap+0x10/0x10 [ 49.163960][ T5775] ? down_write_killable+0x178/0x230 [ 49.166164][ T5775] ? __pfx_down_write_killable+0x10/0x10 [ 49.168454][ T5775] ? common_file_perm+0x1b5/0x230 [ 49.170153][ T5775] vm_mmap_pgoff+0x2a6/0x4d0 [ 49.171703][ T5775] ? __pfx_vm_mmap_pgoff+0x10/0x10 [ 49.173459][ T5775] ? __fget_files+0x2a/0x420 [ 49.174995][ T5775] ? __fget_files+0x3a0/0x420 [ 49.176545][ T5775] ? __fget_files+0x2a/0x420 [ 49.178130][ T5775] ksys_mmap_pgoff+0x51f/0x760 [ 49.179864][ T5775] do_syscall_64+0xfa/0x3b0 [ 49.181356][ T5775] ? lockdep_hardirqs_on+0x9c/0x150 [ 49.183094][ T5775] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 49.185148][ T5775] ? exc_page_fault+0x9f/0xf0 [ 49.186698][ T5775] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 49.188794][ T5775] RIP: 0033:0x7f1788d8ebe3 [ 49.190274][ T5775] Code: f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 41 89 ca 41 f7 c1 ff 0f 00 00 75 14 b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 25 c3 0f 1f 40 00 48 c7 c0 a8 ff ff ff 64 c7 [ 49.196695][ T5775] RSP: 002b:00007ffc8a37e638 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 [ 49.199745][ T5775] RAX: ffffffffffffffda RBX: 00007ffc8a37e670 RCX: 00007f1788d8ebe3 [ 49.202900][ T5775] RDX: 0000000000000003 RSI: 0000000000400000 RDI: 00007f17867ff000 [ 49.205553][ T5775] RBP: 00007ffc8a37e940 R08: 00000000000000d8 R09: 0000000000000000 [ 49.208198][ T5775] R10: 0000000000000011 R11: 0000000000000246 R12: 0000000000000003 [ 49.210876][ T5775] R13: 0000000000000000 R14: 00007f1788fa11c0 R15: 00007f1788e2e478 [ 49.213539][ T5775] [ 49.214662][ T5775] Modules linked in: [ 49.216345][ T5775] ---[ end trace 0000000000000000 ]--- [ 49.219455][ T5775] RIP: 0010:validate_page_before_insert+0x2a/0x300 [ 49.222257][ T5775] Code: 55 41 57 41 56 41 55 41 54 53 48 89 f3 49 89 fe 49 bd 00 00 00 00 00 fc ff df e8 f1 3f b3 ff 4c 8d 7b 08 4c 89 f8 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 ff e8 17 b3 16 00 4d 8b 3f 4c 89 fe 48 [ 49.229457][ T5775] RSP: 0018:ffffc90002a5f608 EFLAGS: 00010202 [ 49.231934][ T5775] RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffff888022891cc0 [ 49.234930][ T5775] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888028c71200 [ 49.237741][ T5775] RBP: ffffc90002a5f720 R08: 0000000000000000 R09: 1ffff11021cf81e0 [ 49.240981][ T5775] R10: dffffc0000000000 R11: ffffed1021cf81e1 R12: dffffc0000000000 [ 49.243941][ T5775] R13: dffffc0000000000 R14: ffff888028c71200 R15: 0000000000000008 [ 49.247265][ T5775] FS: 00005555815ad500(0000) GS:ffff8880b8615000(0000) knlGS:0000000000000000 [ 49.250894][ T5775] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 49.253621][ T5775] CR2: 00007f1788fd20b8 CR3: 000000010d8a4000 CR4: 00000000000006f0 [ 49.256936][ T5775] Kernel panic - not syncing: Fatal exception [ 49.260232][ T5775] Kernel Offset: disabled [ 49.261812][ T5775] Rebooting in 86400 seconds.. VM DIAGNOSIS: 16:03:21 Registers: info registers vcpu 0 CPU#0 RAX=0000000000000030 RBX=0000000000000030 RCX=0000000000000000 RDX=00000000000003f8 RSI=0000000000000000 RDI=0000000000000020 RBP=00000000000003f8 RSP=ffffc90002a5ee30 R8 =ffff8880207d8237 R9 =1ffff110040fb046 R10=dffffc0000000000 R11=ffffffff854fab80 R12=dffffc0000000000 R13=ffffffff99b00906 R14=ffffffff99df5440 R15=0000000000000000 RIP=ffffffff854fabfc RFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0 ES =0000 0000000000000000 ffffffff 00c00000 CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA] SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 ffffffff 00c00000 FS =0000 00005555815ad500 ffffffff 00c00000 GS =0000 ffff8880b8615000 ffffffff 00c00000 LDT=0000 0000000000000000 ffffffff 00c00000 TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000001000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007f1788fd20b8 CR3=000000010d8a4000 CR4=000006f0 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=0000000000000000 0000000000000000 XMM01=0000000000000000 0000000000000000 XMM02=0000000000000000 0000000000000000 XMM03=0000000000000000 0000000000000000 XMM04=ffffffffffffffff ffffffffffffff00 XMM05=0000000000000000 00007f1788e15b06 XMM06=0000000000000000 00007f1788e11d3f XMM07=0000000000000000 00007ffc8a37e5c0 XMM08=62097665646f6e0a 7366746567646167 XMM09=0000000000000000 0000000000000000 XMM10=0000000000000000 0000000000000000 XMM11=0000000000000000 0000000000000000 XMM12=0000000000000000 0000000000000000 XMM13=0000000000000000 0000000000000000 XMM14=0000000000000000 0000000000000000 XMM15=0000000000000000 0000000000000000 info registers vcpu 1 CPU#1 RAX=393270e39c608700 RBX=ffffffff81969468 RCX=393270e39c608700 RDX=0000000000000001 RSI=ffffffff8be33ee0 RDI=ffffffff81969468 RBP=ffffc90000177f20 RSP=ffffc90000177de0 R8 =ffff888136632f9b R9 =1ffff11026cc65f3 R10=dffffc0000000000 R11=ffffed1026cc65f4 R12=ffffffff8fa3a330 R13=0000000000000001 R14=0000000000000001 R15=1ffff1102001f000 RIP=ffffffff8b7a53f3 RFL=00000282 [--S----] CPL=0 II=0 A20=1 SMM=0 HLT=1 ES =0000 0000000000000000 ffffffff 00c00000 CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA] SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 ffffffff 00c00000 FS =0000 0000000000000000 ffffffff 00c00000 GS =0000 ffff8881a3c15000 ffffffff 00c00000 LDT=0000 0000000000000000 ffffffff 00c00000 TR =0040 fffffe000004a000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000048000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=000055a751965bf8 CR3=0000000109f44000 CR4=000006f0 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=0000000000000000 00000000000000ff XMM01=0a0a0a0a0a0a0a0a 0a0a0a0a0a0a0a0a XMM02=0000000000000000 0000000000000000 XMM03=0000000000000000 0000000000000000 XMM04=0000000000000000 00000000000000ff XMM05=ffff0000000000ff ff00000000000000 XMM06=0000000000000000 0000000000000000 XMM07=0000000000000000 0000000000000000 XMM08=0000000000000000 0000000000000000 XMM09=0000000000000000 0000000000000000 XMM10=0000000000000000 0000000000000000 XMM11=0000000000000000 0000000000000000 XMM12=0000000000000000 0000000000000000 XMM13=0000000000000000 0000000000000000 XMM14=0000000000000000 0000000000000000 XMM15=0000000000000000 0000000000000000