Bug 1559318 (CVE-2017-18241) - CVE-2017-18241 kernel: Null pointer dereference in fs/f2fs/segment.c via mounting fs with noflush_merge option allows local denial of service
Summary: CVE-2017-18241 kernel: Null pointer dereference in fs/f2fs/segment.c via moun...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2017-18241
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks: 1559320
TreeView+ depends on / blocked
 
Reported: 2018-03-22 09:47 UTC by Adam Mariš
Modified: 2021-02-17 00:36 UTC (History)
45 users (show)

Fixed In Version: kernel 4.13
Doc Type: If docs needed, set a value
Doc Text:
fs/f2fs/segment.c in the Linux kernel allows local users to cause a denial of service (NULL pointer dereference and panic) by using a noflush_merge option that triggers a NULL value for a flush_cmd_control data structure.
Clone Of:
Environment:
Last Closed: 2018-03-22 11:07:02 UTC


Attachments (Terms of Use)

Description Adam Mariš 2018-03-22 09:47:29 UTC
fs/f2fs/segment.c in the Linux kernel allows local users to cause a denial of service (NULL pointer dereference and panic) by using a noflush_merge option that triggers a NULL value for a flush_cmd_control data structure.

An upstream patch:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d4fdf8ba0e5808ba9ad6b44337783bd9935e0982


Note You need to log in before you can comment on or make changes to this bug.