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| author | jilles <jilles@FreeBSD.org> | 2011-01-28 15:29:35 +0000 |
|---|---|---|
| committer | jilles <jilles@FreeBSD.org> | 2011-01-28 15:29:35 +0000 |
| commit | f43c10ba8c6f7334b043a441d0a2c449309da1b0 (patch) | |
| tree | 7121d53955b54837c225a3956ee57db3b98b5a62 /libexec | |
| parent | aa1f236de418a8ad6896d0c4f6c2c3e4dab28908 (diff) | |
| download | FreeBSD-src-f43c10ba8c6f7334b043a441d0a2c449309da1b0.zip FreeBSD-src-f43c10ba8c6f7334b043a441d0a2c449309da1b0.tar.gz | |
Do not trip a KASSERT if /dev/null cannot be opened for a setuid program.
The fdcheckstd() function makes sure fds 0, 1 and 2 are open by opening
/dev/null. If this fails (e.g. missing devfs or wrong permissions),
fdcheckstd() will return failure and the process will exit as if it received
SIGABRT. The KASSERT is only to check that kern_open() returns the expected
fd, given that it succeeded.
Tripping the KASSERT is most likely if fd 0 is open but fd 1 or 2 are not.
MFC after: 2 weeks
Diffstat (limited to 'libexec')
0 files changed, 0 insertions, 0 deletions
