** Changed in: linux (Ubuntu)
Status: Incomplete => Fix Committed
** Changed in: linux (Ubuntu)
Importance: Undecided => High
** Changed in: linux (Ubuntu)
Assignee: (unassigned) => Cengiz Can (cengizcan)
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https://bugs.launchpad.net/bugs/2017013
Title:
net: sched: Fix use after free in red_enqueue()
Status in linux package in Ubuntu:
Fix Committed
Status in linux-oem-5.14 package in Ubuntu:
In Progress
Status in linux-oem-5.17 package in Ubuntu:
In Progress
Status in linux source package in Xenial:
Fix Committed
Bug description:
[Impact]
We can't use "skb" again after passing it to qdisc_enqueue(). This is
basically identical to commit 2f09707 ("sch_sfb: Also store skb
len before calling child enqueue").
Fixes: d7f4f33 ("sch_red: update backlog as well")
[Fix]
Cherry picked from upstream.
[Test case]
Compile, boot and basic network functionality tested using ntop.
[Potential regression]
Low. This has been in multiple trees for a while now.
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