Crash in nfs41_superblock_getattr_mask()
Posted by Anonymous on Mon 30th Oct 2023 03:07
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2124: trying to open directory \export\home\rmainz\tmp\winnfstest\hummingbirdnfstest1\gcc_cygwin\gcc-9.5.0\x86_64-pc-cygwin\libstdc++-v3\src\c++11\.libs as a file
20f8: handle_getattr: Invalid session pointer 0xdddddddddddddddd
2154: handle_getattr: Invalid session pointer 0xdddddddddddddddd
20d0: handle_getattr: Invalid session pointer 0xdddddddddddddddd
2114: handle_getattr: Invalid session pointer 0xdddddddddddddddd
2104: handle_getattr: Invalid session pointer 0xdddddddddddddddd
(2084.2164): Access violation - code c0000005 (first chance)
First chance exceptions are reported before any exception handling.
This exception may be expected and handled.
VCRUNTIME140D!memcpy+0x126:
00007ffc`0d0a1416 f30f6f0a        movdqu  xmm1,xmmword ptr [rdx] ds:dddddddd`ddddde1d=????????????????????????????????
0:033> kp
Child-SP          RetAddr           Call Site
000000c3`8f1fb648 00007ff6`f2472d54 VCRUNTIME140D!memcpy(void)+0x126
000000c3`8f1fb650 00007ff6`f246dcf3 nfsd!nfs41_superblock_getattr_mask(struct __nfs41_superblock * superblock = 0xdddddddd`dddddddd, struct __bitmap4 * attrs = 0x000000c3`8f1fc608)+0x44
000000c3`8f1fb750 00007ff6`f24889d9 nfsd!nfs41_close(struct __nfs41_session * session = 0xdddddddd`dddddddd, struct __nfs41_path_fh * file = 0x00000281`f43f3260, struct __stateid_arg * stateid = 0x000000c3`8f1fd608)+0x73
000000c3`8f1fd5c0 00007ff6`f2487ec9 nfsd!do_nfs41_close(struct __nfs41_open_state * state = 0x00000281`f43f2ca0)+0xa9
000000c3`8f1fd720 00007ff6`f249d622 nfsd!handle_close(void * deamon_context = 0x00007ff6`f24d6090, struct __nfs41_upcall * upcall = 0x000000c3`8f1feb30)+0x229
000000c3`8f1fd8c0 00007ff6`f246d4f6 nfsd!upcall_handle(void * daemon_context = 0x00007ff6`f24d6090, struct __nfs41_upcall * upcall = 0x000000c3`8f1feb30)+0x92
000000c3`8f1fda00 00007ffc`0cf44c7c nfsd!thread_main(void * args = 0x00007ff6`f24d6090)+0x1b6
000000c3`8f1ff750 00007ffc`41077344 ucrtbased_7ffc0ced0000!thread_start<unsigned int (void * parameter = 0x00000281`b0c3b7c0)+0x9c
000000c3`8f1ff7b0 00007ffc`421c26b1 KERNEL32!BaseThreadInitThunk+0x14
000000c3`8f1ff7e0 00000000`00000000 ntdll!RtlUserThreadStart+0x21