[ 111.491655][ T47] audit: type=1400 audit(1609070293.355:41): avc: denied { map } for pid=10935 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '[localhost]:18518' (ECDSA) to the list of known hosts. [ 115.884776][ T47] audit: type=1400 audit(1609070297.745:42): avc: denied { map } for pid=10949 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 11:58:17 fuzzer started [ 116.463224][T10952] ================================================================================ [ 116.474561][T10952] UBSAN: invalid-load in kernel/params.c:302:33 [ 116.483561][T10952] load of value 255 is not a valid value for type '_Bool' [ 116.495475][T10952] CPU: 0 PID: 10952 Comm: syz-fuzzer Not tainted 5.10.0-syzkaller #0 [ 116.505253][T10952] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 116.505253][T10952] Call Trace: [ 116.505253][T10952] dump_stack+0x107/0x163 [ 116.505253][T10952] ubsan_epilogue+0xb/0x5a [ 116.505253][T10952] __ubsan_handle_load_invalid_value.cold+0x62/0x6c [ 116.505253][T10952] param_get_bool.cold+0x14/0x19 [ 116.505253][T10952] param_attr_show+0x14a/0x220 [ 116.505253][T10952] ? kernel_param_unlock+0x40/0x40 [ 116.505253][T10952] module_attr_show+0x48/0x70 [ 116.505253][T10952] ? func_ptr_is_kernel_text+0x80/0x80 [ 116.505253][T10952] sysfs_kf_seq_show+0x1f8/0x400 [ 116.505253][T10952] seq_read_iter+0x4d3/0x1220 [ 116.505253][T10952] seq_read+0x3dd/0x5b0 [ 116.505253][T10952] ? seq_read_iter+0x1220/0x1220 [ 116.505253][T10952] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 116.505253][T10952] ? selinux_file_permission+0xcc/0x5a0 [ 116.505253][T10952] kernfs_fop_read+0xe9/0x590 [ 116.505253][T10952] ? rw_verify_area+0x11d/0x350 [ 116.505253][T10952] ? kernfs_vma_page_mkwrite+0x230/0x230 [ 116.505253][T10952] vfs_read+0x1b5/0x570 [ 116.505253][T10952] ksys_read+0x12d/0x250 [ 116.505253][T10952] ? vfs_write+0xa80/0xa80 [ 116.505253][T10952] ? syscall_enter_from_user_mode+0x1d/0x50 [ 116.505253][T10952] do_syscall_64+0x2d/0x70 [ 116.505253][T10952] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 116.505253][T10952] RIP: 0033:0x4ad4a0 [ 116.505253][T10952] 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 [ 116.505253][T10952] RSP: 002b:000000c00041d678 EFLAGS: 00000212 ORIG_RAX: 0000000000000000 [ 116.505253][T10952] RAX: ffffffffffffffda RBX: 000000c00001e500 RCX: 00000000004ad4a0 [ 116.505253][T10952] RDX: 0000000000001200 RSI: 000000c000533300 RDI: 0000000000000003 [ 116.505253][T10952] RBP: 000000c00041d6c8 R08: 0000000000000000 R09: 0000000000000000 [ 116.505253][T10952] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 116.505253][T10952] R13: 0000000000000002 R14: 0000000000000001 R15: 0000000000000005 [ 116.763107][T10952] ================================================================================ [ 116.774417][T10952] Kernel panic - not syncing: panic_on_warn set ... [ 116.782340][T10952] CPU: 0 PID: 10952 Comm: syz-fuzzer Not tainted 5.10.0-syzkaller #0 [ 116.784252][T10952] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 116.784252][T10952] Call Trace: [ 116.784252][T10952] dump_stack+0x107/0x163 [ 116.784252][T10952] panic+0x343/0x77f [ 116.784252][T10952] ? __warn_printk+0xf3/0xf3 [ 116.784252][T10952] ? ubsan_epilogue+0x3e/0x5a [ 116.784252][T10952] ubsan_epilogue+0x54/0x5a [ 116.784252][T10952] __ubsan_handle_load_invalid_value.cold+0x62/0x6c [ 116.784252][T10952] param_get_bool.cold+0x14/0x19 [ 116.784252][T10952] param_attr_show+0x14a/0x220 [ 116.784252][T10952] ? kernel_param_unlock+0x40/0x40 [ 116.784252][T10952] module_attr_show+0x48/0x70 [ 116.784252][T10952] ? func_ptr_is_kernel_text+0x80/0x80 [ 116.784252][T10952] sysfs_kf_seq_show+0x1f8/0x400 [ 116.784252][T10952] seq_read_iter+0x4d3/0x1220 [ 116.784252][T10952] seq_read+0x3dd/0x5b0 [ 116.784252][T10952] ? seq_read_iter+0x1220/0x1220 [ 116.784252][T10952] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 116.784252][T10952] ? selinux_file_permission+0xcc/0x5a0 [ 116.784252][T10952] kernfs_fop_read+0xe9/0x590 [ 116.784252][T10952] ? rw_verify_area+0x11d/0x350 [ 116.784252][T10952] ? kernfs_vma_page_mkwrite+0x230/0x230 [ 116.784252][T10952] vfs_read+0x1b5/0x570 [ 116.784252][T10952] ksys_read+0x12d/0x250 [ 116.784252][T10952] ? vfs_write+0xa80/0xa80 [ 116.784252][T10952] ? syscall_enter_from_user_mode+0x1d/0x50 [ 116.784252][T10952] do_syscall_64+0x2d/0x70 [ 116.784252][T10952] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 116.784252][T10952] RIP: 0033:0x4ad4a0 [ 116.784252][T10952] 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 [ 116.784252][T10952] RSP: 002b:000000c00041d678 EFLAGS: 00000212 ORIG_RAX: 0000000000000000 [ 116.784252][T10952] RAX: ffffffffffffffda RBX: 000000c00001e500 RCX: 00000000004ad4a0 [ 116.784252][T10952] RDX: 0000000000001200 RSI: 000000c000533300 RDI: 0000000000000003 [ 116.784252][T10952] RBP: 000000c00041d6c8 R08: 0000000000000000 R09: 0000000000000000 [ 116.784252][T10952] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 116.784252][T10952] R13: 0000000000000002 R14: 0000000000000001 R15: 0000000000000005 [ 116.784252][T10952] Kernel Offset: disabled [ 116.784252][T10952] Rebooting in 86400 seconds.. VM DIAGNOSIS: 11:58:18 Registers: info registers vcpu 0 RAX=dffffc0000000060 RBX=0000000000000005 RCX=0000000000000000 RDX=00000000000003fd RSI=ffffffff841a541c RDI=ffffffff9042abe0 RBP=ffffffff9042aba0 RSP=ffffc90000a97668 R8 =000000000000004f R9 =0000000000000000 R10=ffffffff841a540d R11=000000000000001f R12=0000000000000000 R13=fffffbfff20855c7 R14=fffffbfff208557e R15=dffffc0000000000 RIP=ffffffff841a5444 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 000000c000032790 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=00007f42c5fe2630 CR3=000000002113e000 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=000000c0004670400000000000000001 XMM02=6574656d617261702f6d766b2f656c75 XMM03=73656761705f656775685f786e2f7372 XMM04=00000000004faa4c00000000004faa70 XMM05=000000000060b54d00000000004fac97 XMM06=0000000000850991000000000060a39b XMM07=000000000045c0c100000000004300ce XMM08=000000000000000e000000c0002b9790 XMM09=0000000000000005000000c0002b9787 XMM10=000000000000000e000000c0002b97a0 XMM11=000000000000000b000000c0002b97b0 XMM12=0000000000000010000000c0002b97c0 XMM13=000000c0002b83f00000000000000001 XMM14=000000c0002a1ec00000000000000005 XMM15=00000000000000010000000000000001 info registers vcpu 1 RAX=0000000000000000 RBX=ffffe8ffada09780 RCX=0000000000000000 RDX=ffff88801edd41c0 RSI=ffffffff8167dd48 RDI=0000000000000003 RBP=0000000000000003 RSP=ffffc900009e7988 R8 =0000000000000000 R9 =0000000000000001 R10=ffffffff8167dd6e R11=0000000000000000 R12=fffff91ff5b412f1 R13=0000000000000000 R14=ffffe8ffada09788 R15=0000000000000001 RIP=ffffffff8167dd4f 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 0000000001ad4c30 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=0000000002301078 CR3=000000002113e000 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=000000000000000040f4d492ee84ad79 XMM01=00000000000000003f70c6f7a0b5ed8d XMM02=000000000000000043e0000000000000 XMM03=000000c0000f90e0000000c0000edf50 XMM04=000000c0000fa150000000c0000fa120 XMM05=000000c000075500000000c0000fa180 XMM06=000000c0000fa1e0000000c0000fa1b0 XMM07=000000c0000fc120000000c0000fa210 XMM08=000000c000075560000000c0000fa540 XMM09=000000c0000fa5a0000000c0000fa570 XMM10=000000c0000fa600000000c0000fa5d0 XMM11=000000c0000fa660000000c0000fa630 XMM12=000000c0000fa6c0000000c0000fa690 XMM13=000000c0000fa720000000c0000fa6f0 XMM14=000000c0000fa750000000c000075590 XMM15=000000c0000fe240000000c0000fa780 info registers vcpu 2 RAX=00000000000426f3 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=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=00007fb3439d0cf0 CR3=000000002113e000 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 info registers vcpu 3 RAX=000000000004ab59 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=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 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=00007f4b4b59acf0 CR3=000000001e986000 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=5d3136353338342e36313120205b203a XMM02=65756c61762064696c6176206120746f XMM03=6e207369203535322065756c61762066 XMM04=6f2064616f6c205d3235393031545b5d XMM05=5d3136353338342e36313120205b203a XMM06=3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d XMM07=3a745f656c69663a725f7463656a626f XMM08=ffffff0000000000ff000000000000ff XMM09=00000000000000000000000000000000 XMM10=ffffff00000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000