This bug was fixed in the package linux-azure - 5.15.0-1074.83
---------------
linux-azure (5.15.0-1074.83) jammy; urgency=medium
* jammy/linux-azure: 5.15.0-1074.83 -proposed tracker (LP: #2082129)
* net: mana: Fix RX buf alloc_size alignment and atomic op panic
(LP: #2079854)
- net: mana: Fix RX buf alloc_size alignment and atomic op panic
* Backport "net: mana: Fix race of mana_hwc_post_rx_wqe and new hwc response"
(LP: #2078001)
- net: mana: Fix race of mana_hwc_post_rx_wqe and new hwc response
[ Ubuntu: 5.15.0-124.134 ]
* jammy/linux: 5.15.0-124.134 -proposed tracker (LP: #2082176)
* CVE-2024-45016
- netem: fix return value if duplicate enqueue fails
* CVE-2024-38630
- watchdog: cpu5wdt.c: Fix use-after-free bug caused by cpu5wdt_trigger
* CVE-2024-27397
- netfilter: nf_tables: use timestamp to check for set element timeout
-- John Cabaj <[email protected]> Wed, 02 Oct 2024 11:30:46
-0500
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https://bugs.launchpad.net/bugs/2078001
Title:
Backport "net: mana: Fix race of mana_hwc_post_rx_wqe and new hwc
response"
Status in linux-azure package in Ubuntu:
Fix Committed
Status in linux-azure source package in Jammy:
Fix Released
Status in linux-azure source package in Noble:
Fix Released
Status in linux-azure source package in Oracular:
Fix Committed
Bug description:
[Impact]
Microsoft has requested us to backport the following bugfix, currently
in the netdev tree:
8af174ea863c net: mana: Fix race of mana_hwc_post_rx_wqe and new hwc response
https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=8af174ea863c72f25ce31cee3baad8a301c0cf0f
[Fix]
Clean cherry-pick from the netdev tree to the
{oracular,noble,jammy}:linux-azure trees.
[Test plan]
Build and boot tested.
[Where problems could occur]
This seems to have a low risk of regression, since it's just making
sure to finish posting an RX workqueue event before waiting for
completion in order to avoid a race condition with the hardware.
However, any regressions here would likely impact users as MANA-
related errors/timeouts.
[Other info]
SF #00393766
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