Warning: Permanently added '[localhost]:57313' (ECDSA) to the list of known hosts. 2020/12/27 12:37:00 fuzzer started syzkaller login: [ 100.941060][ T9185] ================================================================================ [ 100.952446][ T9185] UBSAN: invalid-load in kernel/params.c:302:33 [ 100.959978][ T9185] load of value 255 is not a valid value for type '_Bool' [ 100.974178][ T9185] CPU: 0 PID: 9185 Comm: syz-fuzzer Not tainted 5.10.0-syzkaller #0 [ 100.983786][ T9185] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 100.983786][ T9185] Call Trace: [ 100.983786][ T9185] dump_stack+0x107/0x163 [ 100.983786][ T9185] ubsan_epilogue+0xb/0x5a [ 100.983786][ T9185] __ubsan_handle_load_invalid_value.cold+0x62/0x6c [ 100.983786][ T9185] param_get_bool.cold+0x14/0x19 [ 100.983786][ T9185] param_attr_show+0x14a/0x220 [ 100.983786][ T9185] ? kernel_param_unlock+0x40/0x40 [ 100.983786][ T9185] module_attr_show+0x48/0x70 [ 100.983786][ T9185] ? func_ptr_is_kernel_text+0x80/0x80 [ 100.983786][ T9185] sysfs_kf_seq_show+0x1f8/0x400 [ 100.983786][ T9185] seq_read_iter+0x4d3/0x1220 [ 100.983786][ T9185] seq_read+0x3dd/0x5b0 [ 100.983786][ T9185] ? seq_read_iter+0x1220/0x1220 [ 100.983786][ T9185] ? lock_downgrade+0x6d0/0x6d0 [ 100.983786][ T9185] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 100.983786][ T9185] kernfs_fop_read+0xe9/0x590 [ 100.983786][ T9185] ? rw_verify_area+0x11d/0x350 [ 100.983786][ T9185] ? kernfs_vma_page_mkwrite+0x230/0x230 [ 100.983786][ T9185] vfs_read+0x1b5/0x570 [ 100.983786][ T9185] ksys_read+0x12d/0x250 [ 100.983786][ T9185] ? vfs_write+0xa80/0xa80 [ 100.983786][ T9185] ? syscall_enter_from_user_mode+0x1d/0x50 [ 100.983786][ T9185] do_syscall_64+0x2d/0x70 [ 100.983786][ T9185] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 100.983786][ T9185] RIP: 0033:0x4ad4a0 [ 100.983786][ T9185] Code: 8b 7c 24 10 48 8b 74 24 18 48 8b 54 24 20 49 c7 c2 00 00 00 00 49 c7 c0 00 00 00 00 49 c7 c1 00 00 00 00 48 8b 44 24 08 0f 05 <48> 3d 01 f0 ff ff 76 20 48 c7 44 24 28 ff ff ff ff 48 c7 44 24 30 [ 100.983786][ T9185] RSP: 002b:000000c000069678 EFLAGS: 00000212 ORIG_RAX: 0000000000000000 [ 100.983786][ T9185] RAX: ffffffffffffffda RBX: 000000c00001e500 RCX: 00000000004ad4a0 [ 100.983786][ T9185] RDX: 0000000000001200 RSI: 000000c0003c1300 RDI: 0000000000000003 [ 100.983786][ T9185] RBP: 000000c0000696c8 R08: 0000000000000000 R09: 0000000000000000 [ 100.983786][ T9185] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 100.983786][ T9185] R13: 0000000000000002 R14: 0000000000000001 R15: 0000000000000005 [ 101.230725][ T9185] ================================================================================ [ 101.241616][ T9185] Kernel panic - not syncing: panic_on_warn set ... [ 101.249032][ T9185] CPU: 0 PID: 9185 Comm: syz-fuzzer Not tainted 5.10.0-syzkaller #0 [ 101.251374][ T9185] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 101.251374][ T9185] Call Trace: [ 101.251374][ T9185] dump_stack+0x107/0x163 [ 101.251374][ T9185] panic+0x343/0x77f [ 101.251374][ T9185] ? __warn_printk+0xf3/0xf3 [ 101.251374][ T9185] ? ubsan_epilogue+0x3e/0x5a [ 101.251374][ T9185] ubsan_epilogue+0x54/0x5a [ 101.251374][ T9185] __ubsan_handle_load_invalid_value.cold+0x62/0x6c [ 101.251374][ T9185] param_get_bool.cold+0x14/0x19 [ 101.251374][ T9185] param_attr_show+0x14a/0x220 [ 101.251374][ T9185] ? kernel_param_unlock+0x40/0x40 [ 101.251374][ T9185] module_attr_show+0x48/0x70 [ 101.329152][ T9185] ? func_ptr_is_kernel_text+0x80/0x80 [ 101.335002][ T9185] sysfs_kf_seq_show+0x1f8/0x400 [ 101.335002][ T9185] seq_read_iter+0x4d3/0x1220 [ 101.349147][ T9185] seq_read+0x3dd/0x5b0 [ 101.349147][ T9185] ? seq_read_iter+0x1220/0x1220 [ 101.355827][ T9185] ? lock_downgrade+0x6d0/0x6d0 [ 101.355827][ T9185] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 101.355827][ T9185] kernfs_fop_read+0xe9/0x590 [ 101.355827][ T9185] ? rw_verify_area+0x11d/0x350 [ 101.355827][ T9185] ? kernfs_vma_page_mkwrite+0x230/0x230 [ 101.355827][ T9185] vfs_read+0x1b5/0x570 [ 101.355827][ T9185] ksys_read+0x12d/0x250 [ 101.355827][ T9185] ? vfs_write+0xa80/0xa80 [ 101.355827][ T9185] ? syscall_enter_from_user_mode+0x1d/0x50 [ 101.355827][ T9185] do_syscall_64+0x2d/0x70 [ 101.355827][ T9185] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 101.355827][ T9185] RIP: 0033:0x4ad4a0 [ 101.355827][ T9185] Code: 8b 7c 24 10 48 8b 74 24 18 48 8b 54 24 20 49 c7 c2 00 00 00 00 49 c7 c0 00 00 00 00 49 c7 c1 00 00 00 00 48 8b 44 24 08 0f 05 <48> 3d 01 f0 ff ff 76 20 48 c7 44 24 28 ff ff ff ff 48 c7 44 24 30 [ 101.355827][ T9185] RSP: 002b:000000c000069678 EFLAGS: 00000212 ORIG_RAX: 0000000000000000 [ 101.355827][ T9185] RAX: ffffffffffffffda RBX: 000000c00001e500 RCX: 00000000004ad4a0 [ 101.355827][ T9185] RDX: 0000000000001200 RSI: 000000c0003c1300 RDI: 0000000000000003 [ 101.355827][ T9185] RBP: 000000c0000696c8 R08: 0000000000000000 R09: 0000000000000000 [ 101.355827][ T9185] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 101.355827][ T9185] R13: 0000000000000002 R14: 0000000000000001 R15: 0000000000000005 [ 101.355827][ T9185] Kernel Offset: disabled [ 101.355827][ T9185] Rebooting in 86400 seconds.. VM DIAGNOSIS: 12:37:01 Registers: info registers vcpu 0 RAX=dffffc0000000060 RBX=0000000000000005 RCX=0000000000000000 RDX=00000000000003fd RSI=ffffffff8419a86c RDI=ffffffff9040dd80 RBP=ffffffff9040dd40 RSP=ffffc90001747668 R8 =000000000000004f R9 =0000000000000000 R10=ffffffff8419a85d R11=000000000000001f R12=0000000000000000 R13=fffffbfff2081bfb R14=fffffbfff2081bb2 R15=dffffc0000000000 RIP=ffffffff8419a894 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 000000c00005a090 ffffffff 00c00000 GS =0000 ffff88802ca00000 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=00007ff477a7f8c0 CR3=0000000020bd1000 CR4=00350ef0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000fffe0ff0 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=0a33333a3230333a632e736d61726170 XMM01=5d3634343235392e30303120205b203a XMM02=6c656e72656b206e692064616f6c2d64 XMM03=696c61766e69203a4e41534255205d35 XMM04=38313954205b5d3634343235392e3030 XMM05=5d3634343235392e30303120205b203a XMM06=3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d XMM07=6e69666e6f636e753d3d6a6275732035 XMM08=ffffff0000000000ff000000000000ff XMM09=00000000000000000000000000000000 XMM10=ffffff00000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000000000000 RBX=ffff88802ca3b4a0 RCX=0000000000000000 RDX=ffff888013894400 RSI=ffffffff8167dbc8 RDI=0000000000000003 RBP=0000000000000003 RSP=ffffc90001767988 R8 =0000000000000000 R9 =0000000000000001 R10=ffffffff8167dbee R11=0000000000000000 R12=ffffed1005947695 R13=0000000000000000 R14=ffff88802ca3b4a8 R15=0000000000000001 RIP=ffffffff8167dbca RFL=00000293 [--S-A-C] 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 000000c000032b10 ffffffff 00c00000 GS =0000 ffff88802cb00000 ffffffff 00c00000 LDT=0000 0000000000000000 00000000 00000000 TR =0040 fffffe000003e000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe000003c000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=0000000000a61b2b CR3=0000000020bd1000 CR4=00350ee0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000fffe0ff0 DR7=0000000000000400 EFER=0000000000000d01 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001fa0 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=00000000000000003f70c6f7a0b5ed8d XMM02=000000000000000043e0000000000000 XMM03=0000000000000000414c59e61999999a XMM04=00000000000000003fd1b49675824ce8 XMM05=000000c0000e8f60000000c0000e8f30 XMM06=00000000000000003fd3333333333333 XMM07=00000000000000003fd380ea93266c74 XMM08=00000000000000003fe057c0368d51a8 XMM09=00000000000000003fa273bcc64f5f80 XMM10=00000000000000003fd40c641aae57f8 XMM11=000000c0000e93e0000000c0000e93b0 XMM12=000000c0000e9440000000c0000e9410 XMM13=000000c0000e9470000000c0000736e0 XMM14=000000c0000e94d0000000c0000e94a0 XMM15=000000c0000f1440000000c0000e9500 info registers vcpu 2 RAX=00000000000463b1 RBX=ffff88801104c400 RCX=ffffffff8911bf50 RDX=0000000000000000 RSI=0000000000000001 RDI=0000000000000000 RBP=ffffed1002209880 RSP=ffffc9000040fdf8 R8 =0000000000000001 R9 =ffff88802cc35bab R10=ffffed1005986b75 R11=0000000000000000 R12=0000000000000002 R13=0000000000000002 R14=ffffffff8d7bae48 R15=0000000000000000 RIP=ffffffff891411de RFL=00000206 [-----P-] 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 ffff88802cc00000 ffffffff 00c00000 LDT=0000 0000000000000000 00000000 00000000 TR =0040 fffffe0000079000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000077000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=ffffffffff600400 CR3=0000000020bd1000 CR4=00350ee0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000fffe0ff0 DR7=0000000000000400 EFER=0000000000000d01 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001fa0 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=00000000000000003f70c6f7a0b5ed8d XMM02=000000000000000043e0000000000000 XMM03=00000000000000000000000000000000 XMM04=6174736e692065726120737265646165 XMM05=613c206564756c636e69230a64656c6c XMM06=736e65202f2f203e6d687469726f676c XMM07=6568202b2b4320746168742073657275 XMM08=736e6920657261207372656461656820 XMM09=206564756c636e69230a64656c6c6174 XMM10=65202f2f203e6d687469726f676c613c XMM11=202b2b4320746168742073657275736e XMM12=74736e69206572612073726564616568 XMM13=29286e69616d20746e690a64656c6c61 XMM14=6f6c6c6548222866746e697270207b20 XMM15=0a7d203b29226e5c21646c726f57202c info registers vcpu 3 RAX=00000000000035a9 RBX=0000000000000246 RCX=1ffffffff1af6e89 RDX=0000000000000000 RSI=0000000000000001 RDI=0000000000000000 RBP=ffff88802cd26a00 RSP=ffffc9002978fca8 R8 =0000000000000001 R9 =0000000000000001 R10=ffffffff817923b8 R11=0000000000000000 R12=dffffc0000000000 R13=0000000000000001 R14=ffffc9002978fe28 R15=ffff888013aa4400 RIP=ffffffff89141f75 RFL=00000246 [---Z-P-] 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 000000c000032090 ffffffff 00c00000 GS =0000 ffff88802cd00000 ffffffff 00c00000 LDT=0000 0000000000000000 00000000 00000000 TR =0040 fffffe00000b4000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe00000b2000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007f996bc01b30 CR3=0000000020bd1000 CR4=00350ee0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000fffe0ff0 DR7=0000000000000400 EFER=0000000000000d01 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001fa0 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=0000000000000000c1162e42fefa39ef XMM03=0000000000000000414fffffe0000000 XMM04=61636f6c2f7273752f3a6e6962732f6c XMM05=3a6e6962732f7273752f3a6e69622f6c XMM06=2f3a6e6962732f3a6e69622f7273752f XMM07=3131582f6e69622f7273752f3a6e6962 XMM08=00000000000000000000000000000000 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000