general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 0 PID: 6963 Comm: syz-executor.1 Not tainted 5.8.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__switch_to_asm+0x0/0x40 arch/x86/entry/entry_64.S:228 Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 RSP: 0018:ffffc900020c7b90 EFLAGS: 00010046 RAX: dffffc0000000000 RBX: ffff8880ae635e18 RCX: 0000000000000000 RDX: 1ffff11015cc6bc2 RSI: ffff88809fb863c0 RDI: ffff888085794400 RBP: ffffc900020c7c68 R08: 0000000000000001 R09: ffff888085794cc8 R10: fffffbfff155da49 R11: 0000000000000000 R12: ffff888085794400 R13: ffff8880ae635e00 R14: ffff88809fb863c0 R15: ffff888085794830 FS: 0000000000000000(0000) GS:ffff8880ae600000(0063) knlGS:00000000096ff900 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00007fff7dc03e7c CR3: 00000000937fc000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: context_switch kernel/sched/core.c:3458 [inline] __schedule+0x91f/0x2250 kernel/sched/core.c:4215 schedule+0xd0/0x2a0 kernel/sched/core.c:4290 freezable_schedule include/linux/freezer.h:172 [inline] do_nanosleep+0x222/0x650 kernel/time/hrtimer.c:1879 hrtimer_nanosleep+0x1f6/0x430 kernel/time/hrtimer.c:1932 __do_sys_nanosleep_time32 kernel/time/hrtimer.c:1987 [inline] __se_sys_nanosleep_time32 kernel/time/hrtimer.c:1974 [inline] __ia32_sys_nanosleep_time32+0x1e6/0x270 kernel/time/hrtimer.c:1974 do_syscall_32_irqs_on+0x3f/0x60 arch/x86/entry/common.c:428 __do_fast_syscall_32 arch/x86/entry/common.c:475 [inline] do_fast_syscall_32+0x7f/0x120 arch/x86/entry/common.c:503 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c BUG: unable to handle page fault for address: 0000000040000000 #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page PGD 947cd067 P4D 947cd067 PUD 0 Oops: 0002 [#2] PREEMPT SMP KASAN CPU: 0 PID: 6963 Comm: syz-executor.1 Not tainted 5.8.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:in_gate_area_no_mm+0x0/0x6a arch/x86/entry/vsyscall/vsyscall_64.c:343 Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 RSP: 0018:ffffc900020c7218 EFLAGS: 00010012 RAX: 0000000040000000 RBX: ffffc900020c72b8 RCX: ffffffff816a62f0 RDX: ffff888085794400 RSI: ffffffff816a631b RDI: 00000000f7f08569 RBP: 00000000f7f08569 R08: ffffc900020c73c8 R09: ffffffff8c8d7109 R10: 00000000f7f08569 R11: 0000000000000000 R12: ffffc900020c73c8 R13: 0000000000000001 R14: 00000000f7f08569 R15: ffffc900020c72d8 FS: 0000000000000000(0000) GS:ffff8880ae600000(0063) knlGS:00000000096ff900 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 0000000040000000 CR3: 00000000937fc000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: is_kernel include/linux/kallsyms.h:44 [inline] is_ksym_addr include/linux/kallsyms.h:50 [inline] kallsyms_lookup+0xc3/0x2e0 kernel/kallsyms.c:290 __sprint_symbol+0x9c/0x1c0 kernel/kallsyms.c:363 symbol_string+0x14c/0x370 lib/vsprintf.c:969 pointer+0x185/0x970 lib/vsprintf.c:2226 vsnprintf+0x5b2/0x14f0 lib/vsprintf.c:2624 vscnprintf+0x29/0x80 lib/vsprintf.c:2723 vprintk_store+0x44/0x4a0 kernel/printk/printk.c:1942 vprintk_emit+0x139/0x770 kernel/printk/printk.c:2003 vprintk_func+0x8f/0x1a6 kernel/printk/printk_safe.c:393 printk+0xba/0xed kernel/printk/printk.c:2070 show_ip+0x22/0x30 arch/x86/kernel/dumpstack.c:124 show_iret_regs+0x10/0x32 arch/x86/kernel/dumpstack.c:131 __show_regs+0x18/0x50 arch/x86/kernel/process_64.c:72 show_trace_log_lvl+0x255/0x2b4 arch/x86/kernel/dumpstack.c:274 show_regs arch/x86/kernel/dumpstack.c:408 [inline] __die_body arch/x86/kernel/dumpstack.c:393 [inline] die_addr.cold+0x8/0xd arch/x86/kernel/dumpstack.c:433 __exc_general_protection arch/x86/kernel/traps.c:595 [inline] exc_general_protection+0x193/0x2d0 arch/x86/kernel/traps.c:525 asm_exc_general_protection+0x1e/0x30 arch/x86/include/asm/idtentry.h:536 RIP: 0010:__switch_to_asm+0x0/0x40 arch/x86/entry/entry_64.S:228 Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 RSP: 0018:ffffc900020c7b90 EFLAGS: 00010046 RAX: dffffc0000000000 RBX: ffff8880ae635e18 RCX: 0000000000000000 RDX: 1ffff11015cc6bc2 RSI: ffff88809fb863c0 RDI: ffff888085794400 RBP: ffffc900020c7c68 R08: 0000000000000001 R09: ffff888085794cc8 R10: fffffbfff155da49 R11: 0000000000000000 R12: ffff888085794400 R13: ffff8880ae635e00 R14: ffff88809fb863c0 R15: ffff888085794830 context_switch kernel/sched/core.c:3458 [inline] __schedule+0x91f/0x2250 kernel/sched/core.c:4215 schedule+0xd0/0x2a0 kernel/sched/core.c:4290 freezable_schedule include/linux/freezer.h:172 [inline] do_nanosleep+0x222/0x650 kernel/time/hrtimer.c:1879 hrtimer_nanosleep+0x1f6/0x430 kernel/time/hrtimer.c:1932 __do_sys_nanosleep_time32 kernel/time/hrtimer.c:1987 [inline] __se_sys_nanosleep_time32 kernel/time/hrtimer.c:1974 [inline] __ia32_sys_nanosleep_time32+0x1e6/0x270 kernel/time/hrtimer.c:1974 do_syscall_32_irqs_on+0x3f/0x60 arch/x86/entry/common.c:428 __do_fast_syscall_32 arch/x86/entry/common.c:475 [inline] do_fast_syscall_32+0x7f/0x120 arch/x86/entry/common.c:503 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c BUG: unable to handle page fault for address: 0000000040000000 #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page PGD 947cd067 P4D 947cd067 PUD 0 Oops: 0002 [#3] PREEMPT SMP KASAN CPU: 0 PID: 6963 Comm: syz-executor.1 Not tainted 5.8.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:in_gate_area_no_mm+0x0/0x6a arch/x86/entry/vsyscall/vsyscall_64.c:343 Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 RSP: 0018:ffffc900020c6700 EFLAGS: 00010012 RAX: 0000000040000000 RBX: ffffc900020c67a0 RCX: ffffffff816a62f0 RDX: ffff888085794400 RSI: ffffffff816a631b RDI: 00000000f7f08569 RBP: 00000000f7f08569 R08: ffffc900020c68b0 R09: ffff8880ae623f5f R10: 00000000f7f08569 R11: 0000000000000001 R12: ffffc900020c68b0 R13: 0000000000000001 R14: 00000000f7f08569 R15: ffffc900020c67c0 FS: 0000000000000000(0000) GS:ffff8880ae600000(0063) knlGS:00000000096ff900 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 0000000040000000 CR3: 00000000937fc000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: is_kernel include/linux/kallsyms.h:44 [inline] is_ksym_addr include/linux/kallsyms.h:50 [inline] kallsyms_lookup+0xc3/0x2e0 kernel/kallsyms.c:290 __sprint_symbol+0x9c/0x1c0 kernel/kallsyms.c:363 symbol_string+0x14c/0x370 lib/vsprintf.c:969 pointer+0x185/0x970 lib/vsprintf.c:2226 vsnprintf+0x5b2/0x14f0 lib/vsprintf.c:2624 vscnprintf+0x29/0x80 lib/vsprintf.c:2723 printk_safe_log_store+0xf5/0x250 kernel/printk/printk_safe.c:94 vprintk_safe kernel/printk/printk_safe.c:347 [inline] vprintk_func+0xef/0x1a6 kernel/printk/printk_safe.c:390 printk+0xba/0xed kernel/printk/printk.c:2070 show_ip+0x22/0x30 arch/x86/kernel/dumpstack.c:124 show_iret_regs+0x10/0x32 arch/x86/kernel/dumpstack.c:131 __show_regs+0x18/0x50 arch/x86/kernel/process_64.c:72 show_trace_log_lvl+0x255/0x2b4 arch/x86/kernel/dumpstack.c:274 show_regs arch/x86/kernel/dumpstack.c:447 [inline] __die_body arch/x86/kernel/dumpstack.c:393 [inline] __die+0x51/0x90 arch/x86/kernel/dumpstack.c:407 no_context+0x56b/0x9f0 arch/x86/mm/fault.c:695 __bad_area_nosemaphore+0xa9/0x480 arch/x86/mm/fault.c:789 do_user_addr_fault+0x783/0xd00 arch/x86/mm/fault.c:1171 handle_page_fault arch/x86/mm/fault.c:1365 [inline] exc_page_fault+0xab/0x170 arch/x86/mm/fault.c:1418 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:542 RIP: 0010:in_gate_area_no_mm+0x0/0x6a arch/x86/entry/vsyscall/vsyscall_64.c:343 Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 RSP: 0018:ffffc900020c7218 EFLAGS: 00010012 RAX: 0000000040000000 RBX: ffffc900020c72b8 RCX: ffffffff816a62f0 RDX: ffff888085794400 RSI: ffffffff816a631b RDI: 00000000f7f08569 RBP: 00000000f7f08569 R08: ffffc900020c73c8 R09: ffffffff8c8d7109 R10: 00000000f7f08569 R11: 0000000000000000 R12: ffffc900020c73c8 R13: 0000000000000001 R14: 00000000f7f08569 R15: ffffc900020c72d8 is_kernel include/linux/kallsyms.h:44 [inline] is_ksym_addr include/linux/kallsyms.h:50 [inline] kallsyms_lookup+0xc3/0x2e0 kernel/kallsyms.c:290 __sprint_symbol+0x9c/0x1c0 kernel/kallsyms.c:363 symbol_string+0x14c/0x370 lib/vsprintf.c:969 pointer+0x185/0x970 lib/vsprintf.c:2226 vsnprintf+0x5b2/0x14f0 lib/vsprintf.c:2624 vscnprintf+0x29/0x80 lib/vsprintf.c:2723 vprintk_store+0x44/0x4a0 kernel/printk/printk.c:1942 vprintk_emit+0x139/0x770 kernel/printk/printk.c:2003 vprintk_func+0x8f/0x1a6 kernel/printk/printk_safe.c:393 printk+0xba/0xed kernel/printk/printk.c:2070 Lost 72 message(s)!