Bug 2035946 (CVE-2021-45480) - CVE-2021-45480 kernel: memory leak in the __rds_conn_create() in net/rds/connection.c
Summary: CVE-2021-45480 kernel: memory leak in the __rds_conn_create() in net/rds/conn...
Keywords:
Status: CLOSED WONTFIX
Alias: CVE-2021-45480
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: 2035947 2036980
Blocks: 2035948
TreeView+ depends on / blocked
 
Reported: 2021-12-28 18:50 UTC by Guilherme de Almeida Suckevicz
Modified: 2022-04-18 02:26 UTC (History)
47 users (show)

Fixed In Version: kernel 5.16 rc6
Doc Type: If docs needed, set a value
Doc Text:
A memory leak flaw was found in the Reliable Datagram Socket (RDS) in TCP in the Linux kernel. A local attacker, with user privileges, could cause a denial of service on the system. The issue results from the code cleanup in __rds_conn_create in net/rds/connection.c.
Clone Of:
Environment:
Last Closed: 2022-04-18 02:26:55 UTC
Embargoed:

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Description Guilherme de Almeida Suckevicz 2021-12-28 18:50:16 UTC 
An issue was discovered in the Linux kernel before 5.15.11. There is a memory leak in the __rds_conn_create() function in net/rds/connection.c in a certain combination of circumstances.

Reference and upstream patch:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5f9562ebe710c307adc5f666bf1a2162ee7977c0
Comment 1 Guilherme de Almeida Suckevicz 2021-12-28 18:50:45 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2035947]
Comment 2 Justin M. Forbes 2021-12-29 14:24:09 UTC 
This was fixed for Fedora with the 5.15.11 stable kernel updates.
Comment 10 Product Security DevOps Team 2022-04-18 02:26:51 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-2021-45480
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