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kernel panic: Double fault! Check the kernel stack fpointer; you likely ran ofa of the stack.e kf rcx ADDR

Status: closed as invalid on 2018/07/18 15:48
Reported-by: syzbot+062a33bf0af02c1e41f3@syzkaller.appspotmail.com
First crash: 2121d, last: 2121d

Sample crash report:
<kernel panic at kern/arch/x86/trap.c:541, from core 2:  Double fault!  Check the kernel stack fpointer; you likely ran ofa of the stack.e kf rcx  0x00000000000000 
 Stack Backtrace on Core 2:
a#01 [<0xffffffffc200a3b7>] in backtrace
 #02 [<0xffffffffc2009b7c>] in _panic
[#03 [<0xffffffffc20aa253>] <in handle_double_fault
0
xffffffffc20aa253>]  rdx  0xfffffff0000d2aa0
  rbp  0xfffffff0000d2b50
  rsi  0xffffc20001152cb8
  rdi  0xfff0000e2cc8ffff
  r8   0xffffc20001152cb8
  r9   0xffffffffc20ac1ce
   r10  0xffff7fffffffffff
   r11  0xffff8000000b8ec0
r  r12  0x0000000000000003
1  r13  0x3  0xffffffffc8668ffffffffc8668240
22b
eROS(Core 2)> Core 2)> or a list of   r15  0xffff800005f66a20
  trap 0x00000008 Double Fault
  gsbs 0xffffffffc8668140
  fsbs 0x0000000000000000
  err  0x--------00000000
  rip  0xffffffffc20a0ed0
  cs   0x------------0008
  flag 0x0000000000010012
  rsp  0xfffffff0000d2a98
  ss   0x------------0010
Backtrace of kernel context on Core 3:
#01 [<0xffffffffc20a0ed0>] in backtrace_list at arch/x86/kdebug.c:364
#02 [<0xffffffffc200a535>] in backtrace_hwtf at src/kdebug.c:254
#03 [<     [inline]     >] in __handler_kernel_page_fault at arch/x86/trap.c:303
#03 [<     [inline]     >] in __handle_page_fault at arch/x86/trap.c:327
#03 [<     [inline]     >] in trap_dispatch at arch/x86/trap.c:589
#03 [<0xffffffffc20aa62c>] in trap at arch/x86/trap.c:674
kernel panic at kern/arch/x86/trap.c:541, from core 3: Double fault!  Check the kernel stack pointer; you likely ran off the end of the stack.
Stack Backtrace on Core 3:
#01 [<0xffffffffc200a3b7>] in backtrace at src/kdebug.c:219
#02 [<0xffffffffc2009b7c>] in _panic at src/init.c:266
#03 [<0xffffffffc20aa253>] in handle_double_fault at arch/x86/trap.c:541

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2018/07/16 20:45 akaros 93b9607ebeff 13761366 .config console log report ci-akaros-main
* Struck through repros no longer work on HEAD.