PANIC: double fault, error_code: 0x0 ================================================================== CPU: 1 PID: 14309 Comm: syz-executor4 Not tainted 4.18.0-rc3+ #58 BUG: KASAN: stack-out-of-bounds in create_huge_pud mm/memory.c:3893 [inline] BUG: KASAN: stack-out-of-bounds in __handle_mm_fault+0x3aa3/0x4460 mm/memory.c:4041 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Read of size 8 at addr ffff88019d18a010 by task udevd/14328 RIP: 0010:__lock_acquire+0x2e/0x5020 kernel/locking/lockdep.c:3294 Code: 41 57 CPU: 0 PID: 14328 Comm: udevd Not tainted 4.18.0-rc3+ #58 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 41 89 Call Trace: cf 41 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c9/0x2b4 lib/dump_stack.c:113 56 41 55 49 89 fd 41 54 print_address_description+0x6c/0x20b mm/kasan/report.c:256 45 89 kasan_report_error mm/kasan/report.c:354 [inline] kasan_report.cold.7+0x242/0x2fe mm/kasan/report.c:412 cc __asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:433 53 create_huge_pud mm/memory.c:3893 [inline] __handle_mm_fault+0x3aa3/0x4460 mm/memory.c:4041 65 4c 8b 34 25 40 ee 01 00 48 83 e4 f0 48 81 handle_mm_fault+0x53e/0xc80 mm/memory.c:4133 ec 60 03 00 00 __do_page_fault+0x620/0xe50 arch/x86/mm/fault.c:1396 48 8b 45 10 <89> 94 24 do_page_fault+0xf6/0x8c0 arch/x86/mm/fault.c:1471 80 00 00 00 48 ba 00 00 00 00 00 fc ff df 48 89 84 24 98 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1160 RSP: 0018:ffff88019cfa8e90 EFLAGS: 00010086 RIP: 0033:0x406eab Code: RAX: 0000000000000000 RBX: 1ffff100339f524f RCX: 0000000000000002 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff88f92620 Bad RIP value. RBP: ffff88019cfa9220 R08: 0000000000000000 R09: 0000000000000000 R10: ffff88019d21fbe0 R11: ffff880194ee4abb R12: 0000000000000000 RSP: 002b:00007ffef89df700 EFLAGS: 00010246 R13: ffffffff88f92620 R14: ffff880194ee4340 R15: 0000000000000002 FS: 0000000000f92940(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 RAX: 0000000000000000 RBX: 0000000000d48250 RCX: 0000000000000001 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 RDX: 00007ffb9e025e40 RSI: 00007ffb9da94240 RDI: 00007ffb9e0246c0 CR2: ffff88019cfa8e88 CR3: 00000001d2c40000 CR4: 00000000001406e0 DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000 RBP: 0000000000625500 R08: 000000000000195e R09: 000000000000195e DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: R10: 00007ffb9da94240 R11: 00007ffb9e6677a0 R12: 0000000000d58fe0