linux: In the Linux kernel, the following vulnerability has been resolved: net: stmmac: Disable Tx queues when reconfigurin...
CVE-2021-47558 is fixed in linux on 1 platform, first by DEBIAN-CVE-2021-47558, released May 24, 2024. It is not reported as exploited. Patch Radar priority: Routine.
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 ]---
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| linux · Debian 12.15 (bookworm) | 5.15.15-1 | DEBIAN-CVE-2021-47558 | May 24, 2024 |
| linux · Debian 13.5 (trixie) | 5.15.15-1 | DEBIAN-CVE-2021-47558 | May 24, 2024 |
| linux · Debian 14 | 5.15.15-1 | DEBIAN-CVE-2021-47558 | May 24, 2024 |
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