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Re: [PATCH] proc: add missing '\0' back to /proc/$pid/cmdline

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Linus Torvalds writes: (Summary) and limit it to a maximum of one page of slop */ + if (env_end >= arg_end + PAGE_SIZE) + env_end = arg_end + PAGE_SIZE - 1; + * We always include the last byte that is *supposed* + * to be NUL + */ + offset = (pos >= arg_end) ? + + got = access_remote_vm(mm, pos - offset, page, size + offset, FOLL_ANON); /* Don't walk past a NUL character once you hit arg_end */ if (pos + got >= arg_end) { @@ -276,12 +289,17 @@ static ssize_t get_mm_cmdline(struct mm_struct *mm, char __user *buf, n = arg_end - pos - 1;

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