{"cve":"CVE-2024-42110","nvd":{"published":"2024-07-30T08:15:03.487","modified":"2026-08-04T11:19:35.260","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ntb_netdev: Move ntb_netdev_rx_handler() to call netif_rx() from __netif_rx()\n\nThe following is emitted when using idxd (DSA) dmanegine as the data\nmover for ntb_transport that ntb_netdev uses.\n\n[74412.546922] BUG: using smp_processor_id() in preemptible [00000000] code: irq/52-idxd-por/14526\n[74412.556784] caller is netif_rx_internal+0x42/0x130\n[74412.562282] CPU: 6 PID: 14526 Comm: irq/52-idxd-por Not tainted 6.9.5 #5\n[74412.569870] Hardware name: Intel Corporation ArcherCity/ArcherCity, BIOS EGSDCRB1.E9I.1752.P05.2402080856 02/08/2024\n[74412.581699] Call Trace:\n[74412.584514]  <TASK>\n[74412.586933]  dump_stack_lvl+0x55/0x70\n[74412.591129]  check_preemption_disabled+0xc8/0xf0\n[74412.596374]  netif_rx_internal+0x42/0x130\n[74412.600957]  __netif_rx+0x20/0xd0\n[74412.604743]  ntb_netdev_rx_handler+0x66/0x150 [ntb_netdev]\n[74412.610985]  ntb_complete_rxc+0xed/0x140 [ntb_transport]\n[74412.617010]  ntb_rx_copy_callback+0x53/0x80 [ntb_transport]\n[74412.623332]  idxd_dma_complete_txd+0xe3/0x160 [idxd]\n[74412.628963]  idxd_wq_thread+0x1a6/0x2b0 [idxd]\n[74412.634046]  irq_thread_fn+0x21/0x60\n[74412.638134]  ? irq_thread+0xa8/0x290\n[74412.642218]  irq_thread+0x1a0/0x290\n[74412.646212]  ? __pfx_irq_thread_fn+0x10/0x10\n[74412.651071]  ? __pfx_irq_thread_dtor+0x10/0x10\n[74412.656117]  ? __pfx_irq_thread+0x10/0x10\n[74412.660686]  kthread+0x100/0x130\n[74412.664384]  ? __pfx_kthread+0x10/0x10\n[74412.668639]  ret_from_fork+0x31/0x50\n[74412.672716]  ? __pfx_kthread+0x10/0x10\n[74412.676978]  ret_from_fork_asm+0x1a/0x30\n[74412.681457]  </TASK>\n\nThe cause is due to the idxd driver interrupt completion handler uses\nthreaded interrupt and the threaded handler is not hard or soft interrupt\ncontext. However __netif_rx() can only be called from interrupt context.\nChange the call to netif_rx() in order to allow completion via normal\ncontext for dmaengine drivers that utilize threaded irq handling.\n\nWhile the following commit changed from netif_rx() to __netif_rx(),\nbaebdf48c360 (\"net: dev: Makes sure netif_rx() can be invoked in any context.\"),\nthe change should've been a noop instead. However, the code precedes this\nfix should've been using netif_rx_ni() or netif_rx_any_context().","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":[],"references":["https://git.kernel.org/stable/c/4b3b6c7efee69f077b86ef7f088fb96768e46e1f","https://git.kernel.org/stable/c/858ae09f03677a4ab907a15516893bc2cc79d4c3","https://git.kernel.org/stable/c/e15a5d821e5192a3769d846079bc9aa380139baf","https://git.kernel.org/stable/c/e3af5b14e7632bf12058533d69055393e2d126c9","https://git.kernel.org/stable/c/4b3b6c7efee69f077b86ef7f088fb96768e46e1f"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:53:51.317825789+00:00"},"epss":{"cve":"CVE-2024-42110","score":0.00646,"percentile":0.50995,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}