{"id":"CVE-2022-49378","summary":"sfc: fix considering that all channels have TX queues","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nsfc: fix considering that all channels have TX queues\n\nNormally, all channels have RX and TX queues, but this is not true if\nmodparam efx_separate_tx_channels=1 is used. In that cases, some\nchannels only have RX queues and others only TX queues (or more\npreciselly, they have them allocated, but not initialized).\n\nFix efx_channel_has_tx_queues to return the correct value for this case\ntoo.\n\nMessages shown at probe time before the fix:\n sfc 0000:03:00.0 ens6f0np0: MC command 0x82 inlen 544 failed rc=-22 (raw=0) arg=0\n ------------[ cut here ]------------\n netdevice: ens6f0np0: failed to initialise TXQ -1\n WARNING: CPU: 1 PID: 626 at drivers/net/ethernet/sfc/ef10.c:2393 efx_ef10_tx_init+0x201/0x300 [sfc]\n [...] stripped\n RIP: 0010:efx_ef10_tx_init+0x201/0x300 [sfc]\n [...] stripped\n Call Trace:\n  efx_init_tx_queue+0xaa/0xf0 [sfc]\n  efx_start_channels+0x49/0x120 [sfc]\n  efx_start_all+0x1f8/0x430 [sfc]\n  efx_net_open+0x5a/0xe0 [sfc]\n  __dev_open+0xd0/0x190\n  __dev_change_flags+0x1b3/0x220\n  dev_change_flags+0x21/0x60\n [...] stripped\n\nMessages shown at remove time before the fix:\n sfc 0000:03:00.0 ens6f0np0: failed to flush 10 queues\n sfc 0000:03:00.0 ens6f0np0: failed to flush queues","modified":"2026-04-02T08:27:31.907172Z","published":"2025-02-26T02:11:17.084Z","related":["SUSE-SU-2025:1027-1","SUSE-SU-2025:1176-1","SUSE-SU-2025:1183-1","SUSE-SU-2025:1241-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49378.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/2e102b53f8a778f872dc137f4c7ac548705817aa"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5567d69b95b9c07e1c56f15cf0301251d12e5f97"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8f81a4113e1e574d2cbde4f2cd599380a9189c0f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/913d45f02d346ce41c4aad057eaf53a8ed449dc3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e7e8d5e25dc762b70f9c88ec6b7d451d0816eead"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49378.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-49378"},{"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":"8700aff089843399f95bc7701ae87b642b35a716"},{"fixed":"8f81a4113e1e574d2cbde4f2cd599380a9189c0f"},{"fixed":"5567d69b95b9c07e1c56f15cf0301251d12e5f97"},{"fixed":"e7e8d5e25dc762b70f9c88ec6b7d451d0816eead"},{"fixed":"913d45f02d346ce41c4aad057eaf53a8ed449dc3"},{"fixed":"2e102b53f8a778f872dc137f4c7ac548705817aa"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49378.json"}}],"schema_version":"1.7.5"}