Bug 1784923 (CVE-2019-19816) - CVE-2019-19816 kernel: out-of-bounds write in __btrfs_map_block in fs/btrfs/volumes.c
Summary: CVE-2019-19816 kernel: out-of-bounds write in __btrfs_map_block in fs/btrfs/v...
Status: NEW
Alias: CVE-2019-19816
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On: 1784925
Blocks: 1784924
TreeView+ depends on / blocked
Reported: 2019-12-18 17:58 UTC by Guilherme de Almeida Suckevicz
Modified: 2019-12-29 09:43 UTC (History)
46 users (show)

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Description Guilherme de Almeida Suckevicz 2019-12-18 17:58:57 UTC
In the Linux kernel 5.0.21, mounting a crafted btrfs filesystem image and performing some operations can cause slab-out-of-bounds write access in __btrfs_map_block in fs/btrfs/volumes.c, because a value of 1 for the number of data stripes is mishandled.


Comment 1 Guilherme de Almeida Suckevicz 2019-12-18 17:59:55 UTC
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1784925]

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