0005794: vi on busybox 1.12.1 has a null pointer dereference

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Category

Severity

Reproducibility

Date Submitted

Last Update

0005794

[BusyBox] Other

crash

always

10-28-08 16:15

10-28-08 17:56

Reporter

mspiegle

View Status

public

Assigned To

BusyBox

Priority

normal

Resolution

open

Status

assigned

Product Version

1.12.x

Summary

0005794: vi on busybox 1.12.1 has a null pointer dereference

Description

last_search_pattern in vi.c doesn't get initialized to anything, yet the code under FEATURE_VI_SEARCH attempts to use it without checking.

Simply starting vi and hitting 'N' can trigger it. Also, doing an empty search (newline only) also triggers it.

If I set last_search_pattern to "" in main, it fixes it. I'm not sure if that's an appropriate fix though.

Additional Information

Attached Files

Relationships

Notes
(0014514) vda 10-28-08 17:56	Please try http://busybox.net/downloads/fixes-1.12.1/busybox-1.12.1-vi.patch [^]

Issue History
Date Modified	Username	Field	Change
10-28-08 16:15	mspiegle	New Issue
10-28-08 16:15	mspiegle	Status	new => assigned
10-28-08 16:15	mspiegle	Assigned To	=> BusyBox
10-28-08 17:56	vda	Note Added: 0014514