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[PATCH] kdump proc vmcore size oveflow fix
A couple of /proc/vmcore data structures overflow with 32bit systems having memory more than 4G. This patch fixes those. Signed-off-by: Ken'ichi Ohmichi <oomichi@mxs.nes.nec.co.jp> Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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@ -103,8 +103,8 @@ static ssize_t read_vmcore(struct file *file, char __user *buffer,
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size_t buflen, loff_t *fpos)
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{
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ssize_t acc = 0, tmp;
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size_t tsz, nr_bytes;
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u64 start;
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size_t tsz;
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u64 start, nr_bytes;
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struct vmcore *curr_m = NULL;
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if (buflen == 0 || *fpos >= vmcore_size)
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@ -79,7 +79,7 @@ struct kcore_list {
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struct vmcore {
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struct list_head list;
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unsigned long long paddr;
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unsigned long size;
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unsigned long long size;
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loff_t offset;
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};
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