In the Linux kernel, the following vulnerability has been resolved:
net: stmmac: Disable Tx queues when reconfiguring the interface
The Tx queues were not disabled in situations where the driver needed to
stop the interface to apply a new configuration. This could result in a
kernel panic when doing any of the 3 following actions:
* reconfiguring the number of queues (ethtool -L)
* reconfiguring the size of the ring buffers (ethtool -G)
* installing/removing an XDP program (ip l set dev ethX xdp)
Prevent the panic by making sure netif_tx_disable is called when stopping
an interface.
Without this patch, the following kernel panic can be observed when doing
any of the actions above:
Unable to handle kernel paging request at virtual address ffff80001238d040
[....]
Call trace:
dwmac4_set_addr+0x8/0x10
dev_hard_start_xmit+0xe4/0x1ac
sch_direct_xmit+0xe8/0x39c
__dev_queue_xmit+0x3ec/0xaf0
dev_queue_xmit+0x14/0x20
[...]
[ end trace 0000000000000002 ]---
Metrics
Affected Vendors & Products
References
History
Mon, 04 Nov 2024 12:15:00 +0000
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MITRE
Status: PUBLISHED
Assigner: Linux
Published: 2024-05-24T15:09:59.315Z
Updated: 2024-12-19T07:44:47.794Z
Reserved: 2024-05-24T15:02:54.834Z
Link: CVE-2021-47558
Vulnrichment
Updated: 2024-08-04T05:39:59.721Z
NVD
Status : Awaiting Analysis
Published: 2024-05-24T15:15:20.467
Modified: 2024-11-21T06:36:33.157
Link: CVE-2021-47558
Redhat