Bug 1784917 (CVE-2019-19814) - CVE-2019-19814 kernel: out-of-bounds write in __remove_dirty_segment in fs/f2fs/segment.c
Summary: CVE-2019-19814 kernel: out-of-bounds write in __remove_dirty_segment in fs/f2...
Status: NEW
Alias: CVE-2019-19814
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On: 1784918
Blocks: 1784919
TreeView+ depends on / blocked
Reported: 2019-12-18 17:46 UTC by Guilherme de Almeida Suckevicz
Modified: 2019-12-29 10:05 UTC (History)
46 users (show)

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Description Guilherme de Almeida Suckevicz 2019-12-18 17:46:52 UTC
In the Linux kernel 5.0.21, mounting a crafted f2fs filesystem image can cause __remove_dirty_segment slab-out-of-bounds write access because an array is bounded by the number of dirty types (8) but the array index can exceed this.


Comment 1 Guilherme de Almeida Suckevicz 2019-12-18 17:47:50 UTC
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1784918]

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