------------[ cut here ]------------ kernel BUG at mm/kmsan/kmsan.c:266! invalid opcode: 0000 [#1] SMP CPU: 0 PID: 10796 Comm: syz-executor.1 Not tainted 5.0.0+ #11 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:kmsan_memcpy_memmove_metadata+0xefe/0xf10 mm/kmsan/kmsan.c:281 Code: fb ff ff 48 8b 04 25 10 90 c3 8b 4c 01 e0 4c 8b 45 d0 48 bf 00 00 00 00 80 77 00 00 49 89 fa e9 54 f9 ff ff 0f 0b 0f 0b 0f 0b <0f> 0b 0f 0b 0f 0b 0f 0b 0f 0b 0f 0b 66 0f 1f 44 00 00 55 48 89 e5 RSP: 0018:ffff888059c2fca8 EFLAGS: 00010246 RAX: 00000000001bf59e RBX: ffffc9009e5c2000 RCX: 0000000000000000 RDX: 0000000059786000 RSI: ffff888059786000 RDI: 0000778000000000 RBP: ffff888059c2fd08 R08: ffffc9001e5c2000 R09: 0000000000000000 R10: 0000778000000000 R11: ffffc9001e7fffff R12: ffffc9001e5c2000 R13: ffffc9001e5c2000 R14: ffffc9001e62b000 R15: 0000000000004000 FS: 00007fb2026a1700(0000) GS:ffff88812fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000073c000 CR3: 0000000059795000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kmsan_memcpy_metadata+0xb/0x10 mm/kmsan/kmsan.c:324 __msan_memcpy+0x58/0x70 mm/kmsan/kmsan_instr.c:139 write_ldt+0xa3a/0xf00 arch/x86/kernel/ldt.c:518 __do_sys_modify_ldt arch/x86/kernel/ldt.c:569 [inline] __se_sys_modify_ldt+0xe8/0x580 arch/x86/kernel/ldt.c:553 __x64_sys_modify_ldt+0x45/0x60 arch/x86/kernel/ldt.c:553 do_syscall_64+0xbc/0xf0 arch/x86/entry/common.c:291 entry_SYSCALL_64_after_hwframe+0x63/0xe7 RIP: 0033:0x457f29 Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fb2026a0c78 EFLAGS: 00000246 ORIG_RAX: 000000000000009a RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457f29 RDX: 0000000000000010 RSI: 0000000020000880 RDI: 0000000000000011 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb2026a16d4 R13: 00000000004c3ce5 R14: 00000000004d6ee8 R15: 00000000ffffffff Modules linked in: ---[ end trace 9cba271ad72d1689 ]--- RIP: 0010:kmsan_memcpy_memmove_metadata+0xefe/0xf10 mm/kmsan/kmsan.c:281 Code: fb ff ff 48 8b 04 25 10 90 c3 8b 4c 01 e0 4c 8b 45 d0 48 bf 00 00 00 00 80 77 00 00 49 89 fa e9 54 f9 ff ff 0f 0b 0f 0b 0f 0b <0f> 0b 0f 0b 0f 0b 0f 0b 0f 0b 0f 0b 66 0f 1f 44 00 00 55 48 89 e5 RSP: 0018:ffff888059c2fca8 EFLAGS: 00010246 RAX: 00000000001bf59e RBX: ffffc9009e5c2000 RCX: 0000000000000000 RDX: 0000000059786000 RSI: ffff888059786000 RDI: 0000778000000000 RBP: ffff888059c2fd08 R08: ffffc9001e5c2000 R09: 0000000000000000 R10: 0000778000000000 R11: ffffc9001e7fffff R12: ffffc9001e5c2000 R13: ffffc9001e5c2000 R14: ffffc9001e62b000 R15: 0000000000004000 FS: 00007fb2026a1700(0000) GS:ffff88812fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000073c000 CR3: 0000000059795000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400