{"id":"CVE-2024-38597","summary":"eth: sungem: remove .ndo_poll_controller to avoid deadlocks","details":"In the Linux kernel, the following vulnerability has been resolved:\n\neth: sungem: remove .ndo_poll_controller to avoid deadlocks\n\nErhard reports netpoll warnings from sungem:\n\n  netpoll_send_skb_on_dev(): eth0 enabled interrupts in poll (gem_start_xmit+0x0/0x398)\n  WARNING: CPU: 1 PID: 1 at net/core/netpoll.c:370 netpoll_send_skb+0x1fc/0x20c\n\ngem_poll_controller() disables interrupts, which may sleep.\nWe can't sleep in netpoll, it has interrupts disabled completely.\nStrangely, gem_poll_controller() doesn't even poll the completions,\nand instead acts as if an interrupt has fired so it just schedules\nNAPI and exits. None of this has been necessary for years, since\nnetpoll invokes NAPI directly.","modified":"2026-04-02T12:16:52.991668Z","published":"2024-06-19T13:45:46.642Z","related":["MGASA-2024-0263","MGASA-2024-0266","SUSE-SU-2024:2360-1","SUSE-SU-2024:2372-1","SUSE-SU-2024:2381-1","SUSE-SU-2024:2394-1","SUSE-SU-2024:2561-1","SUSE-SU-2024:2571-1","SUSE-SU-2024:2896-1","SUSE-SU-2024:2939-1","SUSE-SU-2024:2973-1","SUSE-SU-2025:20008-1","SUSE-SU-2025:20028-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/38xxx/CVE-2024-38597.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/476adb3bbbd7886e8251d3b9ce2d3c3e680f35d6"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5de5aeb98f9a000adb0db184e32765e4815d860b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6400d205fbbcbcf9b8510157e1f379c1d7e2e937"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ac0a230f719b02432d8c7eba7615ebd691da86f4"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e22b23f5888a065d084e87db1eec639c445e677f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/faf94f1eb8a34b2c31b2042051ef36f63420ecce"},{"type":"WEB","url":"https://git.kernel.org/stable/c/fbeeb55dbb33d562149c57e794f06b7414e44289"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/38xxx/CVE-2024-38597.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-38597"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"fe09bb619096a0aa139210748ddc668c2dbe2308"},{"fixed":"e22b23f5888a065d084e87db1eec639c445e677f"},{"fixed":"fbeeb55dbb33d562149c57e794f06b7414e44289"},{"fixed":"476adb3bbbd7886e8251d3b9ce2d3c3e680f35d6"},{"fixed":"5de5aeb98f9a000adb0db184e32765e4815d860b"},{"fixed":"faf94f1eb8a34b2c31b2042051ef36f63420ecce"},{"fixed":"6400d205fbbcbcf9b8510157e1f379c1d7e2e937"},{"fixed":"ac0a230f719b02432d8c7eba7615ebd691da86f4"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-38597.json"}}],"schema_version":"1.7.5"}