redonkable/alistair23-linux
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aout32 coredump compat fix

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dump_seek() does SEEK_CUR, not SEEK_SET; native binfmt_aout
handles it correctly (seeks by PAGE_SIZE - sizeof(struct user),
getting the current position to PAGE_SIZE), compat one seeks
by PAGE_SIZE and ends up at PAGE_SIZE + already written...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2013-06-22 11:01:38 +04:00
parent 7995bd2871
commit 945fb136df
1 changed files with 1 additions and 1 deletions
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arch/x86/ia32/ia32_aout.c
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@ -192,7 +192,7 @@ static int aout_core_dump(long signr, struct pt_regs *regs, struct file *file,
/* struct user */
DUMP_WRITE(&dump, sizeof(dump));
/* Now dump all of the user data. Include malloced stuff as well */
DUMP_SEEK(PAGE_SIZE);
DUMP_SEEK(PAGE_SIZE - sizeof(dump));
/* now we start writing out the user space info */
set_fs(USER_DS);
/* Dump the data area */