Bug 2133407 (CVE-2022-40476) - CVE-2022-40476 kernel: NULL pointer dereference issue in io_req_track_inflight in fs/io_uring.c
Summary: CVE-2022-40476 kernel: NULL pointer dereference issue in io_req_track_infligh...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2022-40476
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: 2127095
TreeView+ depends on / blocked
 
Reported: 2022-10-10 09:40 UTC by Mauro Matteo Cascella
Modified: 2022-11-29 14:28 UTC (History)
52 users (show)

Fixed In Version: kernel 5.19
Doc Type: If docs needed, set a value
Doc Text:
A NULL pointer dereference issue was discovered in io_req_track_inflight in fs/io_uring.c. A local user could use this flaw to potentially crash the system causing a denial of service.
Clone Of:
Environment:
Last Closed: 2022-11-29 14:28:35 UTC
Embargoed:

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Description Mauro Matteo Cascella 2022-10-10 09:40:33 UTC 
A NULL pointer dereference issue was discovered in io_req_track_inflight in fs/io_uring.c. A local user could use this flaw to potentially crash the system causing a denial of service.

References:
https://github.com/torvalds/linux/commit/386e4fb6962b9f248a80f8870aea0870ca603e89
https://lore.kernel.org/lkml/CAO4S-mdVW5GkODk0+vbQexNAAJZopwzFJ9ACvRCJ989fQ4A6Ow@mail.gmail.com/
Comment 2 Product Security DevOps Team 2022-11-29 14:28:31 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2022-40476
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