Bug 2320783 (CVE-2022-49008) - CVE-2022-49008 kernel: can: can327: can327_feed_frame_to_netdev(): fix potential skb leak when netdev is down
Summary: CVE-2022-49008 kernel: can: can327: can327_feed_frame_to_netdev(): fix potent...
Keywords:
Status: NEW
Alias: CVE-2022-49008
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2024-10-21 22:03 UTC by OSIDB Bzimport
Modified: 2024-10-22 05:36 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
Environment:
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Description OSIDB Bzimport 2024-10-21 22:03:55 UTC 
In the Linux kernel, the following vulnerability has been resolved:

can: can327: can327_feed_frame_to_netdev(): fix potential skb leak when netdev is down

In can327_feed_frame_to_netdev(), it did not free the skb when netdev
is down, and all callers of can327_feed_frame_to_netdev() did not free
allocated skb too. That would trigger skb leak.

Fix it by adding kfree_skb() in can327_feed_frame_to_netdev() when netdev
is down. Not tested, just compiled.
Comment 1 Avinash Hanwate 2024-10-22 05:31:48 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024102151-CVE-2022-49008-d62f@gregkh/T
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