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| author | James Bottomley <James.Bottomley@HansenPartnership.com> | 2009-08-26 14:34:12 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-08-27 21:33:19 +0200 |
| commit | 1b364bf438cf337a3818aee77d68c0713f3e1fc4 (patch) | |
| tree | 878d30319bd3721c6075eef8f3341c6fa9a5afd6 /kernel | |
| parent | module: fix BUG_ON() for powerpc (and other function descriptor archs) (diff) | |
| download | linux-1b364bf438cf337a3818aee77d68c0713f3e1fc4.tar.xz linux-1b364bf438cf337a3818aee77d68c0713f3e1fc4.zip | |
module: workaround duplicate section names
The root cause is a duplicate section name (.text); is this legal?
[ Amerigo Wang: "AFAIK, yes." ]
However, there's a problem with commit
6d76013381ed28979cd122eb4b249a88b5e384fa in that if you fail to allocate
a mod->sect_attrs (in this case it's null because of the duplication),
it still gets used without checking in add_notes_attrs()
This should fix it
[ This patch leaves other problems, particularly the sections directory,
but recent parisc toolchains seem to produce these modules and this
prevents a crash and is a minimal change -- RR ]
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Tested-by: Helge Deller <deller@gmx.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/module.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/module.c b/kernel/module.c index 07c80e68a6c4..eccb561dd8a3 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -2355,7 +2355,8 @@ static noinline struct module *load_module(void __user *umod, if (err < 0) goto unlink; add_sect_attrs(mod, hdr->e_shnum, secstrings, sechdrs); - add_notes_attrs(mod, hdr->e_shnum, secstrings, sechdrs); + if (mod->sect_attrs) + add_notes_attrs(mod, hdr->e_shnum, secstrings, sechdrs); /* Get rid of temporary copy */ vfree(hdr); |