BUG: stack guard page was hit at 00000000b99a64d8 (stack is 000000006f4e3b7d..00000000b1f1adc1) kernel stack overflow (double-fault): 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 21011 Comm: syz-executor.2 Not tainted 5.9.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:no_context+0x1f/0x9f0 arch/x86/mm/fault.c:583 Code: f5 ff 66 0f 1f 84 00 00 00 00 00 41 57 49 bf 00 00 00 00 00 fc ff df 41 56 41 89 ce 41 55 49 89 f5 41 54 49 89 d4 55 48 89 fd <53> 48 8d 9d 88 00 00 00 48 81 ec d0 00 00 00 48 8d 44 24 30 44 89 RSP: 0018:ffffc90017638000 EFLAGS: 00010046 RAX: 0000000000040000 RBX: 0000000000000000 RCX: 000000000000000b RDX: ffffffffffffff89 RSI: 0000000000000002 RDI: ffffc900176380e8 RBP: ffffc900176380e8 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffffffffff89 R13: 0000000000000002 R14: 000000000000000b R15: dffffc0000000000 FS: 00007efc00d0e700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffc90017637ff8 CR3: 00000000a76ff000 CR4: 00000000001526e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __bad_area_nosemaphore+0xa9/0x480 arch/x86/mm/fault.c:788 do_kern_addr_fault+0x5b/0x6f arch/x86/mm/fault.c:1129 handle_page_fault arch/x86/mm/fault.c:1349 [inline] exc_page_fault+0x142/0x160 arch/x86/mm/fault.c:1404 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:538 RIP: 0010:preempt_schedule_thunk+0x0/0x18 arch/x86/entry/thunk_64.S:40 Code: 00 70 07 70 07 00 00 00 70 07 00 77 77 77 07 00 70 07 00 70 07 00 07 00 70 07 00 70 07 77 00 00 70 07 00 77 00 00 00 00 00 00 <00> 48 89 e5 57 56 52 51 50 41 50 41 51 41 52 41 53 e8 33 d6 f4 06 RSP: 0018:ffffc90017638198 EFLAGS: 00010046 RAX: 0000000000000000 RBX: ffffc90017638450 RCX: 0000000000000000 RDX: 0000000000000001 RSI: ffffffff839a7abb RDI: 0000000000000001 RBP: ffffffff81007697 R08: ffffffff83b20ae0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 000000000000000e R14: 0000000000000002 R15: ffffffffffffff89 search_module_extables+0xce/0x100 kernel/module.c:4469 search_exception_tables+0x42/0x50 kernel/extable.c:59 fixup_exception+0x4b/0xca arch/x86/mm/extable.c:161 no_context+0xe7/0x9f0 arch/x86/mm/fault.c:598 __bad_area_nosemaphore+0xa9/0x480 arch/x86/mm/fault.c:788 do_kern_addr_fault+0x5b/0x6f arch/x86/mm/fault.c:1129 handle_page_fault arch/x86/mm/fault.c:1349 [inline] exc_page_fault+0x142/0x160 arch/x86/mm/fault.c:1404 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:538 RIP: 0010:preempt_schedule_thunk+0x0/0x18 arch/x86/entry/thunk_64.S:40 Code: 00 70 07 70 07 00 00 00 70 07 00 77 77 77 07 00 70 07 00 70 07 00 07 00 70 07 00 70 07 77 00 00 70 07 00 77 00 00 00 00 00 00 <00> 48 89 e5 57 56 52 51 50 41 50 41 51 41 52 41 53 e8 33 d6 f4 06 RSP: 0018:ffffc90017638478 EFLAGS: 00010046 RAX: 0000000000000000 RBX: ffffc90017638730 RCX: 0000000000000000 RDX: 0000000000000001 RSI: ffffffff839a7abb RDI: 0000000000000001 RBP: ffffffff81007697 R08: ffffffff83b20ae0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 000000000000000e R14: 0000000000000002 R15: ffffffffffffff89 search_module_extables+0xce/0x100 kernel/module.c:4469 search_exception_tables+0x42/0x50 kernel/extable.c:59 fixup_exception+0x4b/0xca arch/x86/mm/extable.c:161 no_context+0xe7/0x9f0 arch/x86/mm/fault.c:598 __bad_area_nosemaphore+0xa9/0x480 arch/x86/mm/fault.c:788 do_kern_addr_fault+0x5b/0x6f arch/x86/mm/fault.c:1129 handle_page_fault arch/x86/mm/fault.c:1349 [inline] exc_page_fault+0x142/0x160 arch/x86/mm/fault.c:1404 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:538 RIP: 0010:preempt_schedule_thunk+0x0/0x18 arch/x86/entry/thunk_64.S:40 Code: 00 70 07 70 07 00 00 00 70 07 00 77 77 77 07 00 70 07 00 70 07 00 07 00 70 07 00 70 07 77 00 00 70 07 00 77 00 00 00 00 00 00 <00> 48 89 e5 57 56 52 51 50 41 50 41 51 41 52 41 53 e8 33 d6 f4 06 RSP: 0018:ffffc90017638758 EFLAGS: 00010046 RAX: 0000000000000000 RBX: ffffc90017638a10 RCX: 0000000000000000 RDX: 0000000000000001 RSI: ffffffff839a7abb RDI: 0000000000000001 RBP: ffffffff81007697 R08: ffffffff83b20ae0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 000000000000000e R14: 0000000000000002 R15: ffffffffffffff89 search_module_extables+0xce/0x100 kernel/module.c:4469 search_exception_tables+0x42/0x50 kernel/extable.c:59 fixup_exception+0x4b/0xca arch/x86/mm/extable.c:161 no_context+0xe7/0x9f0 arch/x86/mm/fault.c:598 __bad_area_nosemaphore+0xa9/0x480 arch/x86/mm/fault.c:788 do_kern_addr_fault+0x5b/0x6f arch/x86/mm/fault.c:1129 handle_page_fault arch/x86/mm/fault.c:1349 [inline] exc_page_fault+0x142/0x160 arch/x86/mm/fault.c:1404 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:538 RIP: 0010:preempt_schedule_thunk+0x0/0x18 arch/x86/entry/thunk_64.S:40 Code: 00 70 07 70 07 00 00 00 70 07 00 77 77 77 07 00 70 07 00 70 07 00 07 00 70 07 00 70 07 77 00 00 70 07 00 77 00 00 00 00 00 00 <00> 48 89 e5 57 56 52 51 50 41 50 41 51 41 52 41 53 e8 33 d6 f4 06 RSP: 0018:ffffc90017638a38 EFLAGS: 00010046 RAX: 0000000000000000 RBX: ffffc90017638cf0 RCX: 0000000000000000 RDX: 0000000000000001 RSI: ffffffff839a7abb RDI: 0000000000000001 RBP: ffffffff81007697 R08: ffffffff83b20ae0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 000000000000000e R14: 0000000000000002 R15: ffffffffffffff89 search_module_extables+0xce/0x100 kernel/module.c:4469 search_exception_tables+0x42/0x50 kernel/extable.c:59 fixup_exception+0x4b/0xca arch/x86/mm/extable.c:161 no_context+0xe7/0x9f0 arch/x86/mm/fault.c:598 __bad_area_nosemaphore+0xa9/0x480 arch/x86/mm/fault.c:788 do_kern_addr_fault+0x5b/0x6f arch/x86/mm/fault.c:1129 handle_page_fault arch/x86/mm/fault.c:1349 [inline] exc_page_fault+0x142/0x160 arch/x86/mm/fault.c:1404 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:538 RIP: 0010:preempt_schedule_thunk+0x0/0x18 arch/x86/entry/thunk_64.S:40 Code: 00 70 07 70 07 00 00 00 70 07 00 77 77 77 07 00 70 07 00 70 07 00 07 00 70 07 00 70 07 77 00 00 70 07 00 77 00 00 00 00 00 00 <00> 48 89 e5 57 56 52 51 50 41 50 41 51 41 52 41 53 e8 33 d6 f4 06 RSP: 0018:ffffc90017638d18 EFLAGS: 00010046 RAX: 0000000000000000 RBX: ffffc90017638fd0 RCX: 0000000000000000 RDX: 0000000000000001 RSI: ffffffff839a7abb RDI: 0000000000000001 RBP: ffffffff81007697 R08: ffffffff83b20ae0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 000000000000000e R14: 0000000000000002 R15: ffffffffffffff89 search_module_extables+0xce/0x100 kernel/module.c:4469 search_exception_tables+0x42/0x50 kernel/extable.c:59 fixup_exception+0x4b/0xca arch/x86/mm/extable.c:161 no_context+0xe7/0x9f0 arch/x86/mm/fault.c:598 __bad_area_nosemaphore+0xa9/0x480 arch/x86/mm/fault.c:788 do_kern_addr_fault+0x5b/0x6f arch/x86/mm/fault.c:1129 handle_page_fault arch/x86/mm/fault.c:1349 [inline] exc_page_fault+0x142/0x160 arch/x86/mm/fault.c:1404 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:538 RIP: 0010:preempt_schedule_thunk+0x0/0x18 arch/x86/entry/thunk_64.S:40 Code: 00 70 07 70 07 00 00 00 70 07 00 77 77 77 07 00 70 07 00 70 07 00 07 00 70 07 00 70 07 77 00 00 70 07 00 77 00 00 00 00 00 00 <00> 48 89 e5 57 56 52 51 50 41 50 41 51 41 52 41 53 e8 33 d6 f4 06 RSP: 0018:ffffc90017638ff8 EFLAGS: 00010046 RAX: 0000000000000000 RBX: ffffc900176392b0 RCX: 0000000000000000 RDX: 0000000000000001 RSI: ffffffff839a7abb RDI: 0000000000000001 RBP: ffffffff81007697 R08: ffffffff83b20ae0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 000000000000000e R14: 0000000000000002 R15: ffffffffffffff89 search_module_extables+0xce/0x100 kernel/module.c:4469 search_exception_tables+0x42/0x50 kernel/extable.c:59 fixup_exception+0x4b/0xca arch/x86/mm/extable.c:161 no_context+0xe7/0x9f0 arch/x86/mm/fault.c:598 __bad_area_nosemaphore+0xa9/0x480 arch/x86/mm/fault.c:788 do_kern_addr_fault+0x5b/0x6f arch/x86/mm/fault.c:1129 handle_page_fault arch/x86/mm/fault.c:1349 [inline] exc_page_fault+0x142/0x160 arch/x86/mm/fault.c:1404 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:538 RIP: 0010:preempt_schedule_thunk+0x0/0x18 arch/x86/entry/thunk_64.S:40 Code: 00 70 07 70 07 00 00 00 70 07 00 77 77 77 07 00 70 07 00 70 07 00 07 00 70 07 00 70 07 77 00 00 70 07 00 77 00 00 00 00 00 00 <00> 48 89 e5 57 56 52 51 50 41 50 41 51 41 52 41 53 e8 33 d6 f4 06 RSP: 0018:ffffc900176392d8 EFLAGS: 00010046 RAX: 0000000000000000 RBX: ffffc90017639590 RCX: 0000000000000000 RDX: 0000000000000001 RSI: ffffffff839a7abb RDI: 0000000000000001 RBP: ffffffff81007697 R08: ffffffff83b20ae0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 000000000000000e R14: 0000000000000002 R15: ffffffffffffff89 search_module_extables+0xce/0x100 kernel/module.c:4469 Lost 814 message(s)! ---[ end trace 2e1cf60e4c2c296a ]--- RIP: 0010:no_context+0x1f/0x9f0 arch/x86/mm/fault.c:583 Code: f5 ff 66 0f 1f 84 00 00 00 00 00 41 57 49 bf 00 00 00 00 00 fc ff df 41 56 41 89 ce 41 55 49 89 f5 41 54 49 89 d4 55 48 89 fd <53> 48 8d 9d 88 00 00 00 48 81 ec d0 00 00 00 48 8d 44 24 30 44 89 RSP: 0018:ffffc90017638000 EFLAGS: 00010046 RAX: 0000000000040000 RBX: 0000000000000000 RCX: 000000000000000b RDX: ffffffffffffff89 RSI: 0000000000000002 RDI: ffffc900176380e8 RBP: ffffc900176380e8 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffffffffff89 R13: 0000000000000002 R14: 000000000000000b R15: dffffc0000000000 FS: 00007efc00d0e700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffc90017637ff8 CR3: 00000000a76ff000 CR4: 00000000001526e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400