{"id":"CVE-2021-47558","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: stmmac: Disable Tx queues when reconfiguring the interface\n\nThe Tx queues were not disabled in situations where the driver needed to\nstop the interface to apply a new configuration. This could result in a\nkernel panic when doing any of the 3 following actions:\n* reconfiguring the number of queues (ethtool -L)\n* reconfiguring the size of the ring buffers (ethtool -G)\n* installing/removing an XDP program (ip l set dev ethX xdp)\n\nPrevent the panic by making sure netif_tx_disable is called when stopping\nan interface.\n\nWithout this patch, the following kernel panic can be observed when doing\nany of the actions above:\n\nUnable to handle kernel paging request at virtual address ffff80001238d040\n[....]\n Call trace:\n  dwmac4_set_addr+0x8/0x10\n  dev_hard_start_xmit+0xe4/0x1ac\n  sch_direct_xmit+0xe8/0x39c\n  __dev_queue_xmit+0x3ec/0xaf0\n  dev_queue_xmit+0x14/0x20\n[...]\n[ end trace 0000000000000002 ]---","modified":"2026-03-14T14:51:57.378524Z","published":"2024-05-24T15:15:20.467Z","related":["SUSE-SU-2024:2008-1","SUSE-SU-2024:2011-1","SUSE-SU-2024:2019-1","SUSE-SU-2024:2189-1","SUSE-SU-2024:2190-1"],"references":[{"type":"FIX","url":"https://git.kernel.org/stable/c/a92f0eebb8dc008b9e8c51c6f7b8c93b27a29a43"},{"type":"FIX","url":"https://git.kernel.org/stable/c/b270bfe697367776eca2e6759a71d700fb8d82a2"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"5.10"},{"fixed":"5.15.6"}]},{"events":[{"introduced":"0"},{"last_affected":"5.16-rc1"}]},{"events":[{"introduced":"0"},{"last_affected":"5.16-rc2"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-47558.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}