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Overview
| Comment: | Fix a problem in xFullPathname for the unix VFS. The problem was found by Kostya Serebryany using libFuzzer. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
bb1e2c4df0b81327923f121dd6c00284 |
| User & Date: | drh 2015-11-30 22:22:23 |
Context
|
2015-11-30
| ||
| 22:52 | Add the SQLITE_PRINTF_PRECISION_LIMIT compile-time option. check-in: ecad75d6 user: drh tags: trunk | |
| 22:22 | Fix a problem in xFullPathname for the unix VFS. The problem was found by Kostya Serebryany using libFuzzer. check-in: bb1e2c4d user: drh tags: trunk | |
| 20:36 | The EOVERFLOW errors from fstat() is not possible unless SQLite has been compiled with SQLITE_DISABLE_LFS. check-in: 8cfb7a50 user: drh tags: trunk | |
Changes
Changes to src/os_unix.c.
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** follows the '/'.
**
** This code is written so that if the combination of the CWD and relative
** path are larger than the allocated size of zOut[] the CWD is silently
** truncated to make it fit. This is Ok, as SQLite refuses to open any
** file for which this function returns a full path larger than (nOut-8)
** bytes in size. */
if( zOut[0]!='/' ){
int nCwd;
int nRem = nOut-nByte-1;
memmove(&zOut[nRem], zOut, nByte+1);
zOut[nRem-1] = '\0';
if( osGetcwd(zOut, nRem-1)==0 ){
return unixLogError(SQLITE_CANTOPEN_BKPT, "getcwd", zPath);
}
|
> > | |
5977 5978 5979 5980 5981 5982 5983 5984 5985 5986 5987 5988 5989 5990 5991 5992 5993 |
** follows the '/'. ** ** This code is written so that if the combination of the CWD and relative ** path are larger than the allocated size of zOut[] the CWD is silently ** truncated to make it fit. This is Ok, as SQLite refuses to open any ** file for which this function returns a full path larger than (nOut-8) ** bytes in size. */ testcase( nByte==nOut-5 ); testcase( nByte==nOut-4 ); if( zOut[0]!='/' && nByte<nOut-4 ){ int nCwd; int nRem = nOut-nByte-1; memmove(&zOut[nRem], zOut, nByte+1); zOut[nRem-1] = '\0'; if( osGetcwd(zOut, nRem-1)==0 ){ return unixLogError(SQLITE_CANTOPEN_BKPT, "getcwd", zPath); } |
Changes to test/symlink.test.
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} 1
do_test 2.4 {
file exists test.db2-wal
} 0
do_execsql_test 2.5 {
SELECT * FROM t1;
} {1 2}
finish_test
|
> > > > > > > > > > |
111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 |
} 1
do_test 2.4 {
file exists test.db2-wal
} 0
do_execsql_test 2.5 {
SELECT * FROM t1;
} {1 2}
# Try to open a ridiculously long pathname. Bug found by
# Kostya Serebryany using libFuzzer on 2015-11-30.
#
do_test 3.1 {
db close
catch {sqlite3 db [string repeat [string repeat x 100]/ 6]} res
set res
} {unable to open database file}
finish_test
|