------------[ cut here ]------------ WARNING: CPU: 1 PID: 11178 at drivers/md/md.c:7536 md_ioctl+0x3c8b/0x5480 drivers/md/md.c:7536 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 11178 Comm: syz-executor.2 Not tainted 5.7.0-rc7-next-20200529-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x18f/0x20d lib/dump_stack.c:118 panic+0x2e3/0x75c kernel/panic.c:231 __warn.cold+0x2f/0x3a kernel/panic.c:600 report_bug+0x27b/0x2f0 lib/bug.c:195 fixup_bug arch/x86/kernel/traps.c:105 [inline] fixup_bug arch/x86/kernel/traps.c:100 [inline] do_error_trap+0x153/0x2b0 arch/x86/kernel/traps.c:197 handle_invalid_op arch/x86/kernel/traps.c:240 [inline] __exc_invalid_op arch/x86/kernel/traps.c:246 [inline] exc_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:244 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:526 RIP: 0010:md_ioctl+0x3c8b/0x5480 drivers/md/md.c:7536 Code: 06 10 00 00 c7 85 40 01 00 00 00 00 00 00 e9 03 ec ff ff 48 8d 84 24 a8 00 00 00 48 89 44 24 08 e9 0f e3 ff ff e8 25 91 f3 fb <0f> 0b e9 0a d0 ff ff 44 89 4c 24 18 e8 14 91 f3 fb 31 ff 44 89 f6 RSP: 0018:ffffc90008f6fb98 EFLAGS: 00010216 RAX: 0000000000040000 RBX: 0000000000000932 RCX: ffffc9000dce3000 RDX: 0000000000007f9a RSI: ffffffff857f6a7b RDI: 0000000000000007 RBP: ffff888214494000 R08: ffff888096bd0080 R09: ffffed1042892806 R10: ffff88821449402f R11: ffffed1042892805 R12: 0000000000000000 R13: 0000000000000932 R14: ffff8880a31a7140 R15: 0000000000000001 __blkdev_driver_ioctl block/ioctl.c:224 [inline] blkdev_ioctl+0x25e/0x6c0 block/ioctl.c:620 block_ioctl+0xf9/0x140 fs/block_dev.c:1987 vfs_ioctl fs/ioctl.c:48 [inline] ksys_ioctl+0x11a/0x180 fs/ioctl.c:753 __do_sys_ioctl fs/ioctl.c:762 [inline] __se_sys_ioctl fs/ioctl.c:760 [inline] __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:760 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:359 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45ca69 Code: 0d b7 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 db b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f1b51045c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00000000004e1680 RCX: 000000000045ca69 RDX: 0000000000000000 RSI: 0000000000000932 RDI: 0000000000000003 RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000220 R14: 00000000004c469d R15: 00007f1b510466d4 Kernel Offset: disabled Rebooting in 86400 seconds..