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make sysctl/kernel/core_pattern and fs/exec.c agree on maximum core filename size

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Make sysctl/kernel/core_pattern and fs/exec.c agree on maximum core
filename size and change it to 128, so that extensive patterns such as
'/local/cores/%e-%h-%s-%t-%p.core' won't result in truncated filename
generation.

Signed-off-by: Dan Aloni <da-x@monatomic.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Dan Aloni 2007-05-16 22:11:16 -07:00 committed by Linus Torvalds
parent bc88d5d4e1
commit 71ce92f3fa
3 changed files with 4 additions and 4 deletions
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4
fs/exec.c
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@ -60,7 +60,7 @@
#endif #endif
int core_uses_pid; int core_uses_pid;
char core_pattern[128] = "core"; char core_pattern[CORENAME_MAX_SIZE] = "core";
int suid_dumpable = 0; int suid_dumpable = 0;
EXPORT_SYMBOL(suid_dumpable); EXPORT_SYMBOL(suid_dumpable);
@ -1264,8 +1264,6 @@ int set_binfmt(struct linux_binfmt *new)
EXPORT_SYMBOL(set_binfmt); EXPORT_SYMBOL(set_binfmt);
#define CORENAME_MAX_SIZE 64
/* format_corename will inspect the pattern parameter, and output a /* format_corename will inspect the pattern parameter, and output a
* name into corename, which must have space for at least * name into corename, which must have space for at least
* CORENAME_MAX_SIZE bytes plus one byte for the zero terminator. * CORENAME_MAX_SIZE bytes plus one byte for the zero terminator.

2
include/linux/binfmts.h
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@ -17,6 +17,8 @@ struct pt_regs;
#ifdef __KERNEL__ #ifdef __KERNEL__
#define CORENAME_MAX_SIZE 128
/* /*
* This structure is used to hold the arguments that are used when loading binaries. * This structure is used to hold the arguments that are used when loading binaries.
*/ */

2
kernel/sysctl.c
View File

@ -227,7 +227,7 @@ static ctl_table kern_table[] = {
.ctl_name = KERN_CORE_PATTERN, .ctl_name = KERN_CORE_PATTERN,
.procname = "core_pattern", .procname = "core_pattern",
.data = core_pattern, .data = core_pattern,
.maxlen = 128, .maxlen = CORENAME_MAX_SIZE,
.mode = 0644, .mode = 0644,
.proc_handler = &proc_dostring, .proc_handler = &proc_dostring,
.strategy = &sysctl_string, .strategy = &sysctl_string,