Warning: Permanently added '[localhost]:14875' (ECDSA) to the list of known hosts. [ 108.063417][ T49] audit: type=1400 audit(1609068734.648:42): avc: denied { map } for pid=10272 comm="syz-fuzzer" path="/syz-fuzzer" dev="sda1" ino=16526 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:file_t:s0 tclass=file permissive=1 2020/12/27 11:32:14 fuzzer started [ 108.758030][T10279] ================================================================================ [ 108.770957][T10279] UBSAN: invalid-load in kernel/params.c:302:33 [ 108.779911][T10279] load of value 255 is not a valid value for type '_Bool' [ 108.796603][T10279] CPU: 1 PID: 10279 Comm: syz-fuzzer Not tainted 5.10.0-syzkaller #0 [ 108.806321][T10279] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 108.806321][T10279] Call Trace: [ 108.806321][T10279] dump_stack+0x107/0x163 [ 108.806321][T10279] ubsan_epilogue+0xb/0x5a [ 108.806321][T10279] __ubsan_handle_load_invalid_value.cold+0x62/0x6c [ 108.806321][T10279] param_get_bool.cold+0x14/0x19 [ 108.806321][T10279] param_attr_show+0x14a/0x220 [ 108.806321][T10279] ? kernel_param_unlock+0x40/0x40 [ 108.806321][T10279] module_attr_show+0x48/0x70 [ 108.806321][T10279] ? func_ptr_is_kernel_text+0x80/0x80 [ 108.806321][T10279] sysfs_kf_seq_show+0x1f8/0x400 [ 108.806321][T10279] seq_read_iter+0x4d3/0x1220 [ 108.806321][T10279] seq_read+0x3dd/0x5b0 [ 108.806321][T10279] ? seq_read_iter+0x1220/0x1220 [ 108.806321][T10279] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 108.806321][T10279] ? selinux_file_permission+0xcc/0x5a0 [ 108.806321][T10279] kernfs_fop_read+0xe9/0x590 [ 108.806321][T10279] ? rw_verify_area+0x11d/0x350 [ 108.806321][T10279] ? kernfs_vma_page_mkwrite+0x230/0x230 [ 108.806321][T10279] vfs_read+0x1b5/0x570 [ 108.806321][T10279] ksys_read+0x12d/0x250 [ 108.806321][T10279] ? vfs_write+0xa80/0xa80 [ 108.806321][T10279] ? syscall_enter_from_user_mode+0x1d/0x50 [ 108.806321][T10279] do_syscall_64+0x2d/0x70 [ 108.806321][T10279] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 108.806321][T10279] RIP: 0033:0x4ad4a0 [ 108.806321][T10279] 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 [ 108.806321][T10279] RSP: 002b:000000c00006d678 EFLAGS: 00000212 ORIG_RAX: 0000000000000000 [ 108.806321][T10279] RAX: ffffffffffffffda RBX: 000000c00001e500 RCX: 00000000004ad4a0 [ 108.806321][T10279] RDX: 0000000000001200 RSI: 000000c0001cf300 RDI: 0000000000000003 [ 108.806321][T10279] RBP: 000000c00006d6c8 R08: 0000000000000000 R09: 0000000000000000 [ 108.806321][T10279] R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000002 [ 108.806321][T10279] R13: 0000000000f09640 R14: 000000000045c0c0 R15: 0000000000000000 [ 109.111183][T10279] ================================================================================ [ 109.126482][T10279] Kernel panic - not syncing: panic_on_warn set ... [ 109.135601][T10279] CPU: 1 PID: 10279 Comm: syz-fuzzer Not tainted 5.10.0-syzkaller #0 [ 109.135601][T10279] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 109.135601][T10279] Call Trace: [ 109.135601][T10279] dump_stack+0x107/0x163 [ 109.135601][T10279] panic+0x343/0x77f [ 109.135601][T10279] ? __warn_printk+0xf3/0xf3 [ 109.135601][T10279] ? ubsan_epilogue+0x3e/0x5a [ 109.135601][T10279] ubsan_epilogue+0x54/0x5a [ 109.135601][T10279] __ubsan_handle_load_invalid_value.cold+0x62/0x6c [ 109.135601][T10279] param_get_bool.cold+0x14/0x19 [ 109.135601][T10279] param_attr_show+0x14a/0x220 [ 109.135601][T10279] ? kernel_param_unlock+0x40/0x40 [ 109.135601][T10279] module_attr_show+0x48/0x70 [ 109.135601][T10279] ? func_ptr_is_kernel_text+0x80/0x80 [ 109.135601][T10279] sysfs_kf_seq_show+0x1f8/0x400 [ 109.135601][T10279] seq_read_iter+0x4d3/0x1220 [ 109.135601][T10279] seq_read+0x3dd/0x5b0 [ 109.135601][T10279] ? seq_read_iter+0x1220/0x1220 [ 109.135601][T10279] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 109.135601][T10279] ? selinux_file_permission+0xcc/0x5a0 [ 109.135601][T10279] kernfs_fop_read+0xe9/0x590 [ 109.135601][T10279] ? rw_verify_area+0x11d/0x350 [ 109.135601][T10279] ? kernfs_vma_page_mkwrite+0x230/0x230 [ 109.135601][T10279] vfs_read+0x1b5/0x570 [ 109.135601][T10279] ksys_read+0x12d/0x250 [ 109.135601][T10279] ? vfs_write+0xa80/0xa80 [ 109.135601][T10279] ? syscall_enter_from_user_mode+0x1d/0x50 [ 109.135601][T10279] do_syscall_64+0x2d/0x70 [ 109.135601][T10279] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 109.135601][T10279] RIP: 0033:0x4ad4a0 [ 109.135601][T10279] 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 [ 109.376496][T10279] RSP: 002b:000000c00006d678 EFLAGS: 00000212 ORIG_RAX: 0000000000000000 [ 109.376496][T10279] RAX: ffffffffffffffda RBX: 000000c00001e500 RCX: 00000000004ad4a0 [ 109.376496][T10279] RDX: 0000000000001200 RSI: 000000c0001cf300 RDI: 0000000000000003 [ 109.376496][T10279] RBP: 000000c00006d6c8 R08: 0000000000000000 R09: 0000000000000000 [ 109.376496][T10279] R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000002 [ 109.376496][T10279] R13: 0000000000f09640 R14: 000000000045c0c0 R15: 0000000000000000 [ 109.376496][T10279] Kernel Offset: disabled [ 109.376496][T10279] Rebooting in 86400 seconds.. VM DIAGNOSIS: 11:32:15 Registers: info registers vcpu 0 RAX=0000000000048c19 RBX=ffffffff8b49bc00 RCX=ffffffff8912cca0 RDX=0000000000000000 RSI=0000000000000001 RDI=0000000000000000 RBP=fffffbfff1693780 RSP=ffffffff8b407e40 R8 =0000000000000001 R9 =ffff88802ca35c6b R10=ffffed1005946b8d R11=0000000000000000 R12=0000000000000000 R13=0000000000000000 R14=ffffffff8d7bd6c8 R15=0000000000000000 RIP=ffffffff8915233e RFL=00000202 [-------] 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 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=00007f1b271f7cf0 CR3=000000001bbf2000 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=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=000000000000000040d6fc0000000000 XMM03=000000c0000dcb40000000c000074de0 XMM04=000000c0000d3b60000000c0000d3b30 XMM05=000000c0000d3bc0000000c0000d3b90 XMM06=000000c0000d3bf0000000c000074e10 XMM07=000000c0000dd8c0000000c0000d3c20 XMM08=000000c0000d3e60000000c0000d3e30 XMM09=000000c0000d3ec0000000c0000d3e90 XMM10=000000c0000d3f20000000c0000d3ef0 XMM11=000000c0000d3f80000000c0000d3f50 XMM12=000000c0000d3fb0000000c000074e70 XMM13=000000c0000e0030000000c0000e0000 XMM14=000000c0000e0090000000c0000e0060 XMM15=000000c0000df440000000c0000e00c0 info registers vcpu 1 RAX=000000000000005d RBX=0000000000000000 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff841a5371 RDI=ffffffff9042abe0 RBP=ffffffff9042aba0 RSP=ffffc90001d576c0 R8 =0000000000000000 R9 =0000000000000000 R10=ffffffff841a5362 R11=000000000000001f R12=000000000000005d R13=0000000000000000 R14=ffffffff9042aba0 R15=dffffc0000000000 RIP=ffffffff841a539c 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 000000c000306b10 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=00007f6c25bcb630 CR3=000000001bbf2000 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=00000000004faa4c00000000004faa70 XMM02=000000000060b54d00000000004fac97 XMM03=0000000000850991000000000060a39b XMM04=00000000004faa4c00000000004faa70 XMM05=000000000060b54d00000000004fac97 XMM06=0000000000850991000000000060a39b XMM07=000000000045c0c100000000004300ce XMM08=000000000000000e000000c000015e70 XMM09=0000000000000005000000c000015e67 XMM10=000000000000000e000000c000015e80 XMM11=000000000000000b000000c000015e90 XMM12=0000000000000010000000c000015ea0 XMM13=000000c0000143a00000000000000001 XMM14=000000c0000724100000000000000005 XMM15=00000000000000010000000000000001 info registers vcpu 2 RAX=000000000003b6a7 RBX=ffff8880112bc3c0 RCX=ffffffff8912cca0 RDX=0000000000000000 RSI=0000000000000001 RDI=0000000000000000 RBP=ffffed1002257878 RSP=ffffc9000042fdf8 R8 =0000000000000001 R9 =ffff88802cc35c6b R10=ffffed1005986b8d R11=0000000000000000 R12=0000000000000002 R13=0000000000000002 R14=ffffffff8d7bd6c8 R15=0000000000000000 RIP=ffffffff8915233e RFL=00000202 [-------] 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=0000000000f44100 CR3=000000001bbf2000 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=000000c000386a48000000c000386a40 XMM04=000000c000386a20000000c000386a18 XMM05=000000c000386a30000000c000386a28 XMM06=000000c000386a40000000c000386a38 XMM07=000000c000386a50000000c000386a48 XMM08=000000c000386a78000000c000386a70 XMM09=000000c000386a88000000c000386a80 XMM10=000000c000386a98000000c000386a90 XMM11=000000c000386aa8000000c000386aa0 XMM12=000000c000386ab8000000c000386ab0 XMM13=000000c000386ac8000000c000386ac0 XMM14=000000c000386ad8000000c000386ad0 XMM15=000000c000386ae8000000c000386ae0 info registers vcpu 3 RAX=000000000003c913 RBX=ffff8880112e0400 RCX=ffffffff8912cca0 RDX=0000000000000000 RSI=0000000000000001 RDI=0000000000000000 RBP=ffffed100225c080 RSP=ffffc9000043fdf8 R8 =0000000000000001 R9 =ffff88802cd35c6b R10=ffffed10059a6b8d R11=0000000000000000 R12=0000000000000003 R13=0000000000000003 R14=ffffffff8d7bd6c8 R15=0000000000000000 RIP=ffffffff8915233e RFL=00000202 [-------] 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 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=00007fb4a924d1b0 CR3=0000000013e7e000 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=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=0a276c6f6f425f27206570797420726f XMM01=5d3131393937372e38303120205b203a XMM02=65756c61762064696c6176206120746f XMM03=6e207369203535322065756c61762066 XMM04=6f2064616f6c205d3937323031545b5d XMM05=5d3131393937372e38303120205b203a XMM06=206e692064616f6c2d64696c61766e69 XMM07=5d3731343336302e38303120205b203a XMM08=ffffff0000000000ff000000000000ff XMM09=00000000000000000000000000000000 XMM10=ffffff00000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000