{"id":"CVE-2024-46679","summary":"ethtool: check device is present when getting link settings","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nethtool: check device is present when getting link settings\n\nA sysfs reader can race with a device reset or removal, attempting to\nread device state when the device is not actually present. eg:\n\n     [exception RIP: qed_get_current_link+17]\n  #8 [ffffb9e4f2907c48] qede_get_link_ksettings at ffffffffc07a994a [qede]\n  #9 [ffffb9e4f2907cd8] __rh_call_get_link_ksettings at ffffffff992b01a3\n #10 [ffffb9e4f2907d38] __ethtool_get_link_ksettings at ffffffff992b04e4\n #11 [ffffb9e4f2907d90] duplex_show at ffffffff99260300\n #12 [ffffb9e4f2907e38] dev_attr_show at ffffffff9905a01c\n #13 [ffffb9e4f2907e50] sysfs_kf_seq_show at ffffffff98e0145b\n #14 [ffffb9e4f2907e68] seq_read at ffffffff98d902e3\n #15 [ffffb9e4f2907ec8] vfs_read at ffffffff98d657d1\n #16 [ffffb9e4f2907f00] ksys_read at ffffffff98d65c3f\n #17 [ffffb9e4f2907f38] do_syscall_64 at ffffffff98a052fb\n\n crash\u003e struct net_device.state ffff9a9d21336000\n    state = 5,\n\nstate 5 is __LINK_STATE_START (0b1) and __LINK_STATE_NOCARRIER (0b100).\nThe device is not present, note lack of __LINK_STATE_PRESENT (0b10).\n\nThis is the same sort of panic as observed in commit 4224cfd7fb65\n(\"net-sysfs: add check for netdevice being present to speed_show\").\n\nThere are many other callers of __ethtool_get_link_ksettings() which\ndon't have a device presence check.\n\nMove this check into ethtool to protect all callers.","modified":"2026-03-20T12:39:04.221542Z","published":"2024-09-13T05:29:13.450Z","related":["SUSE-SU-2024:3551-1","SUSE-SU-2024:3553-1","SUSE-SU-2024:3559-1","SUSE-SU-2024:3561-1","SUSE-SU-2024:3564-1","SUSE-SU-2024:3566-1","SUSE-SU-2024:3569-1","SUSE-SU-2024:3587-1","SUSE-SU-2024:3591-1","SUSE-SU-2024:3592-1","SUSE-SU-2025:20073-1","SUSE-SU-2025:20077-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/46xxx/CVE-2024-46679.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/1d6d9b5b1b95bfeccb84386a51b7e6c510ec13b2"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7a8d98b6d6484d3ad358510366022da080c37cbc"},{"type":"WEB","url":"https://git.kernel.org/stable/c/842a40c7273ba1c1cb30dda50405b328de1d860e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/94ab317024ba373d37340893d1c0358638935fbb"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9bba5955eed160102114d4cc00c3d399be9bdae4"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a699781c79ecf6cfe67fb00a0331b4088c7c8466"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ec7b4f7f644018ac293cb1b02528a40a32917e62"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/46xxx/CVE-2024-46679.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-46679"},{"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":"d519e17e2d01a0ee9abe083019532061b4438065"},{"fixed":"ec7b4f7f644018ac293cb1b02528a40a32917e62"},{"fixed":"842a40c7273ba1c1cb30dda50405b328de1d860e"},{"fixed":"7a8d98b6d6484d3ad358510366022da080c37cbc"},{"fixed":"9bba5955eed160102114d4cc00c3d399be9bdae4"},{"fixed":"94ab317024ba373d37340893d1c0358638935fbb"},{"fixed":"1d6d9b5b1b95bfeccb84386a51b7e6c510ec13b2"},{"fixed":"a699781c79ecf6cfe67fb00a0331b4088c7c8466"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-46679.json"}}],"schema_version":"1.7.5"}