| commit | a76511f3a40ea69ee4f5cd86e735e1c8a84f0aa2 | [log] [tgz] |
|---|---|---|
| author | Russ Cox <rsc@golang.org> | Wed Dec 08 18:05:11 2021 -0500 |
| committer | Filippo Valsorda <filippo@golang.org> | Thu Dec 09 13:36:16 2021 +0000 |
| tree | 611250ea7db431fa52086fe456ced887e44ef5c1 | |
| parent | d6c4583ad4923533ddc9f5792ed3b66f3b9f9feb [diff] |
syscall: fix ForkLock spurious close(0) on pipe failure Pipe (and therefore forkLockPipe) does not make any guarantees about the state of p after a failed Pipe(p). Avoid that assumption and the too-clever goto, so that we don't accidentally Close a real fd if the failed pipe leaves p[0] or p[1] set >= 0. Fixes #50057 Fixes CVE-2021-44717 Change-Id: Iff8e19a6efbba0c73cc8b13ecfae381c87600bb4 Reviewed-on: https://team-review.git.corp.google.com/c/golang/go-private/+/1291270 Reviewed-by: Ian Lance Taylor <iant@google.com> Reviewed-on: https://go-review.googlesource.com/c/go/+/370576 Run-TryBot: Filippo Valsorda <filippo@golang.org> Trust: Russ Cox <rsc@golang.org> Reviewed-by: Alex Rakoczy <alex@golang.org>
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