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kernel: vm: fix off-by-one errors in get_mount_point

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* Fix for 03df8bfcf2.
* Fix misleading indentation.
* Fixes #14225.
This commit is contained in:
Kacper Kasper 2018-08-06 23:01:38 +02:00
parent 3f45e1e6ef
commit 7cea6679a8
1 changed files with 4 additions and 3 deletions
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7
src/system/kernel/vm/VMAnonymousCache.cpp
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@ -1263,16 +1263,17 @@ get_mount_point(KPartition* partition, KPath* mountPoint)
} }
} }
BStackOrHeapArray<char, 128> basePath(nameLength + 1); BStackOrHeapArray<char, 128> basePath(nameLength + 2);
if (!basePath.IsValid()) if (!basePath.IsValid())
return B_NO_MEMORY; return B_NO_MEMORY;
int32 len = snprintf(basePath, nameLength + 1, "/%s", volumeName); int32 len = snprintf(basePath, nameLength + 2, "/%s", volumeName);
for (int32 i = 1; i < len; i++) for (int32 i = 1; i < len; i++)
if (basePath[i] == '/') if (basePath[i] == '/')
basePath[i] = '-'; basePath[i] = '-';
char* path = mountPoint->LockBuffer(); char* path = mountPoint->LockBuffer();
int32 pathLen = mountPoint->BufferSize(); int32 pathLen = mountPoint->BufferSize();
strncpy(path, basePath, pathLen); strncpy(path, basePath, pathLen);
panic("OH NO");
struct stat dummy; struct stat dummy;
for (int i = 1; ; i++) { for (int i = 1; ; i++) {