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Posted to bugs@httpd.apache.org by bu...@apache.org on 2007/02/21 23:42:20 UTC
DO NOT REPLY [Bug 41672] New: - Segfault in apr_hashfunc_default in tables/apr_hash.c
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Summary: Segfault in apr_hashfunc_default in tables/apr_hash.c
Product: Apache httpd-2
Version: 2.2.2
Platform: PC
OS/Version: Linux
Status: NEW
Severity: blocker
Priority: P2
Component: Core
AssignedTo: bugs@httpd.apache.org
ReportedBy: julien.perez@epsylonia.net
(gdb) b apr_hashfunc_default
Breakpoint 1 at 0xb7f640f8: file tables/apr_hash.c, line 227.
(gdb) c
Continuing.
[Switching to Thread -1210222912 (LWP 13243)]
Breakpoint 1, apr_hashfunc_default (char_key=0x0, klen=0xbfff7148)
at tables/apr_hash.c:227
227 if (*klen == APR_HASH_KEY_STRING) {
(gdb) s
228 for (p = key; *p; p++) {
(gdb) s
Program received signal SIGSEGV, Segmentation fault.
apr_hashfunc_default (char_key=0x0, klen=0xbfff7148) at tables/apr_hash.c:228
228 for (p = key; *p; p++) {
problematic code:
if (*klen == APR_HASH_KEY_STRING) {
for (p = key; *p; p++) {
hash = hash * 33 + *p;
}
*klen = p - key;
}
else {
Happening when key = 0x0 and klen = -1, I still have to study on my side the
business logic part of the 'bug'. Hope it will help
Thx for keeping Apache a great product
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DO NOT REPLY [Bug 41672] - Segfault in apr_hashfunc_default in tables/apr_hash.c
Posted by bu...@apache.org.
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trawick@apache.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |NEEDINFO
------- Additional Comments From trawick@apache.org 2007-02-21 15:59 -------
A bad parm was passed to the hash function (key=NULL).
>From the same spot in gdb run "bt full" to get a backtrace, and post it here.
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DO NOT REPLY [Bug 41672] - Segfault in apr_hashfunc_default in tables/apr_hash.c
Posted by bu...@apache.org.
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trawick@apache.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEEDINFO |RESOLVED
Component|Core |APR
Product|Apache httpd-2 |APR
Resolution| |INVALID
Version|2.2.2 |1.2.7
------- Additional Comments From trawick@apache.org 2007-02-21 19:13 -------
issue was in user's program
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DO NOT REPLY [Bug 41672] - Segfault in apr_hashfunc_default in tables/apr_hash.c
Posted by bu...@apache.org.
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------- Additional Comments From julien.perez@epsylonia.net 2007-02-21 17:32 -------
I forgot to say I posted without being sure if it was a normal behaviour or not
(that this function accept anything without ensuring data wont make it crash). A
friend of mine told me it was normal, and it was not the duty of
apr_hashfunc_default to 'sanitize' the parameters it receives. Sorry again
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DO NOT REPLY [Bug 41672] - Segfault in apr_hashfunc_default in tables/apr_hash.c
Posted by bu...@apache.org.
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trawick@apache.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |CLOSED
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