[External] Potential bug with data.frame replacement

Thanks for the report. The buffer overflow should be fixed in
R-patched and R-devel.

Best,

luke

Dear R-devel,

I have encountered a crash-inducing scenario and would like to enquire as to
whether this would be considered a bug. To reproduce the crash:

X <- sample(letters, 3000, TRUE)
D <- data.frame(X, 1:3000, X, X, X, X, X)
D$X1.3000 <- paste0("GSM", D)

The reason why I'm not sure if this would be considered a bug is because I
typed this by accident, when what I meant was:

D$X1.3000 <- paste0("GSM", D$X1.3000)

I can never image a scenario where I would intentionally perform the former.

This issue seems to have something to do with the size of the data.frame, as
smaller examples will work fine:

D <- data.frame(A = 1:10, B = letters[1:10])
D$A <- paste0("A", D)

Also just doing the paste0 part without trying to replace a data.frame column
not crash R for me.

I can submit this on Bugzilla should this be deemed sufficiently buggy.

I am running 3.6.0 on macOS (x86_64-apple-darwin15.6.0).

Sincerely,

B.T.

______________________________________________
R-devel at r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-devel

Luke Tierney
Ralph E. Wareham Professor of Mathematical Sciences
University of Iowa                  Phone:             319-335-3386
Department of Statistics and        Fax:               319-335-3017
    Actuarial Science
241 Schaeffer Hall                  email:   luke-tierney at uiowa.edu
Iowa City, IA 52242                 WWW:  http://www.stat.uiowa.edu

[External] Potential bug with data.frame replacement

Thread (4 messages)