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| From | Chet Ramey <chet.ramey@case.edu> |
| Newsgroups | gnu.bash.bug |
| Subject | Re: process substitution fd lifetime race condition |
| Date | Mon, 20 Apr 2020 17:58:26 -0400 |
| Organization | ITS, Case Western Reserve University |
| Lines | 31 |
| Approved | bug-bash@gnu.org |
| Message-ID | <mailman.843.1587419914.3066.bug-bash@gnu.org> (permalink) |
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| To | "Jason A. Donenfeld" <Jason@zx2c4.com> |
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On 4/20/20 5:56 PM, Jason A. Donenfeld wrote: > On Mon, Apr 20, 2020 at 3:49 PM Chet Ramey <chet.ramey@case.edu> wrote: >> >> On 4/20/20 5:01 PM, Jason A. Donenfeld wrote: >>> On 4/20/20, Chet Ramey <chet.ramey@case.edu> wrote: >>>> On 4/20/20 1:15 AM, Jason A. Donenfeld wrote: >>>>> Hi, >>>>> >>>>> I've uncovered a very unusual race condition when using process >>>>> substitution and developed as minimal a reproducer as I could create: >>>> >>>> What version of bash are you using? >>>> >>> >>> 5.0.016 >> >> See if the patch in this message helps things. I'm skeptical, but give it >> a try. >> >> https://lists.gnu.org/archive/html/bug-bash/2020-04/msg00018.html > > Actually, it seems to work indeed... So far I can't repro with that. OK, good. It was either that or closing the fd after reaping the child process -- I couldn't tell 100% from the system call trace. -- ``The lyf so short, the craft so long to lerne.'' - Chaucer ``Ars longa, vita brevis'' - Hippocrates Chet Ramey, UTech, CWRU chet@case.edu http://tiswww.cwru.edu/~chet/
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Re: process substitution fd lifetime race condition Chet Ramey <chet.ramey@case.edu> - 2020-04-20 17:58 -0400
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