https://github.com/torvalds/linux
Revision 006f38a1c3dcbe237a75e725fe457bd59cb489c4 authored by Linus Torvalds on 27 May 2020, 16:53:25 UTC, committed by Linus Torvalds on 27 May 2020, 16:53:25 UTC
Pull execve fix from Eric Biederman:
"While working on my exec cleanups I found a bug in exec that winds up
miscomputing the ambient credentials during exec. Andy appears to have
to been confused as to why credentials are computed for both the
script and the interpreter
From the original patch description:
[3] Linux very confusingly processes both the script and the
interpreter if applicable, for reasons that elude me. The results
from thinking about a script's file capabilities and/or setuid
bits are mostly discarded.
The only value in struct cred that gets changed in cap_bprm_set_creds
that I could find that might persist between the script and the
interpreter was cap_ambient. Which is fixed with this trivial change"
* 'exec-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
exec: Always set cap_ambient in cap_bprm_set_creds
Tip revision: 006f38a1c3dcbe237a75e725fe457bd59cb489c4 authored by Linus Torvalds on 27 May 2020, 16:53:25 UTC
Merge branch 'exec-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
Merge branch 'exec-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
Tip revision: 006f38a
Computing file changes ...
