A fix is available
APAR status
Closed as program error.
Error description
When an application continuously calls into pam_authenticate with explicit conv routine being called to prompt, the operating system will eventually kill the process because memory becomes exhausted. This is because PAM libpam.a is not releasing allocated memory.
Local fix
Problem summary
Application which calls pam_authenticate function in loop causes the crash with following stack. malloc_y(0x10, 0x0, 0x9001000a0071ee0, 0x9001000a00043a0, 0xffffffffffede80, 0x1, 0x0, 0x11005a110) at 0x900000000041dbc malloc_common@AF103_87(??) at 0x900000000029f8c malloc(??) at 0x900000000029d0c calloc_common(??, ??) at 0x9000000000293dc pam_framework_utils.__pam_input_output(??, ??, ??, ??, ??) at 0x900000004198d50 pam_get_user(??, ??, ??) at 0x900000004197a70 pam_sm_authenticate(??, ??, ??, ??) at 0x90000000418fa80 pam_authenticate(??, ??) at 0x900000004196ac8 .() at 0x100171720
Problem conclusion
The crash is due to a memory leak in pam_authenticate function, the memory leak has been resolved using this.
Temporary fix
Comments
APAR Information
APAR number
IV48432
Reported component name
AIX 610 STD EDI
Reported component ID
5765G6200
Reported release
610
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Submitted date
2013-09-12
Closed date
2013-09-12
Last modified date
2014-02-17
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
AIX 610 STD EDI
Fixed component ID
5765G6200
Applicable component levels
R610 PSY U859528
UP14/02/17 I 1000
PTF to Fileset Mapping
U859528 bos.rte.security 6.1.8.17
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Document Information
Modified date:
17 February 2014