Re: [PATCH] ptrace: use fsuid, fsgid, effective creds for fs access checks
flat view
From: Andrew Morton <akpm@linux-foundation.org>
Date: 2015-11-09 21:19:06
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On Mon, 9 Nov 2015 22:12:09 +0100 Jann Horn [off-list ref] wrote:
quoted
Can we do #define PTRACE_foo (PTRACE_MODE_READ|PTRACE_MODE_FSCREDS) to avoid all that?Hm. All combinations of the PTRACE_MODE_*CREDS flags with PTRACE_MODE_{READ,ATTACH} plus optionally PTRACE_MODE_NOAUDIT make sense, I think. So your suggestion would be to create four new #defines PTRACE_MODE_{READ,ATTACH}_{FSCREDS,REALCREDS} and then let callers OR in the PTRACE_MODE_NOAUDIT flag if needed?
If these flag combinations have an identifiable concept behind them then sure, it makes sense to capture that via a well-chosen identifier. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>