The patch titled
ensure NULL deref can't possibly happen in is_exported()
has been added to the -mm tree. Its filename is
ensure-null-deref-cant-possibly-happen-in-is_exported.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
From: Jesper Juhl <jesper.juhl@xxxxxxxxx>
If CONFIG_KALLSYMS is defined and if it should happen that is_exported() is
given a NULL 'mod' and lookup_symbol(name, __start___ksymtab,
__stop___ksymtab) returns 0, then we'll end up dereferencing a NULL
pointer.
Signed-off-by: Jesper Juhl <jesper.juhl@xxxxxxxxx>
Cc: Rusty Russell <rusty@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
kernel/module.c | 2 +-
1 files changed, 1 insertion(+), 1 deletion(-)
diff -puN kernel/module.c~ensure-null-deref-cant-possibly-happen-in-is_exported kernel/module.c
--- devel/kernel/module.c~ensure-null-deref-cant-possibly-happen-in-is_exported 2006-05-10 22:38:35.000000000 -0700
+++ devel-akpm/kernel/module.c 2006-05-10 22:38:35.000000000 -0700
@@ -1326,7 +1326,7 @@ int is_exported(const char *name, const
if (!mod && lookup_symbol(name, __start___ksymtab, __stop___ksymtab))
return 1;
else
- if (lookup_symbol(name, mod->syms, mod->syms + mod->num_syms))
+ if (mod && lookup_symbol(name, mod->syms, mod->syms + mod->num_syms))
return 1;
else
return 0;
_
Patches currently in -mm which might be from jesper.juhl@xxxxxxxxx are
origin.patch
fix-mem-leak-in-sidewinder-driver.patch
git-mtd.patch
fix-mem-leak-in-netfilter.patch
git-scsi-rc-fixes.patch
small-whitespace-cleanup-for-qlogic-driver.patch
reduce-nr-of-ptr-derefs-in-fs-jffs2-summaryc.patch
oss-cs46xx-cleanup-and-tiny-bugfix.patch
i4l-memory-leak-fix-for-sc_ioctl.patch
isdn-unsafe-interaction-between-isdn_write-and-isdn_writebuf_stub.patch
binfmt_elf-codingstyle-cleanup-and-remove-some-pointless-casts.patch
binfnt_elf-remove-more-casts.patch
ensure-null-deref-cant-possibly-happen-in-is_exported.patch
debug-shared-irqs.patch
remove-redundant-null-checks-before-free-in-fs.patch
remove-redundant-null-checks-before-free-in-kernel.patch
remove-redundant-null-checks-before-free-in-drivers.patch
-
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