{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-64125","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-07-19T07:54:57.036Z","datePublished":"2026-07-19T15:40:22.590Z","dateUpdated":"2026-07-20T13:43:36.374Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-07-20T13:43:36.374Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: bcmgenet: keep RBUF EEE/PM disabled\n\nSetting RBUF_EEE_EN | RBUF_PM_EN in RBUF_ENERGY_CTRL breaks the RX\npath on GENET hardware once MAC EEE becomes active. RX traffic stops\nflowing while the link stays up and the usual descriptor/RX error\ncounters remain quiet. In that state the MAC still accepts frames\n(rbuf_ovflow_cnt keeps climbing) but RBUF no longer forwards them to\nDMA, so rx_packets is no longer incremented at the netdev level. On\nsome boards the corruption ends up as a paging fault in\nskb_release_data via bcmgenet_rx_poll on an LPI exit.\n\nReproduced on Pi 4B (BCM2711 + BCM54213PE) and confirmed by Florian\nFainelli on an internal Broadcom 4908-family board with the same crash\nsignature. RBUF_PM_EN is not publicly documented.\n\nThis shows up more often now that phy_support_eee() enables EEE by\ndefault, but it also affects older kernels as soon as TX LPI is\nturned on via ethtool, so it is not specific to recent changes.\n\nAlways clear RBUF_EEE_EN | RBUF_PM_EN in bcmgenet_eee_enable_set so\nthe bits stay off across resets. UMAC and TBUF setup is left alone so\nTX-side EEE keeps working."}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL"}}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/broadcom/genet/bcmgenet.c"],"versions":[{"version":"6ef398ea60d931b97d69ed080bd0bd00fac38ec6","lessThan":"2040eb83f6ada148fb32dd98b943a498005d79f2","status":"affected","versionType":"git"},{"version":"6ef398ea60d931b97d69ed080bd0bd00fac38ec6","lessThan":"f2782ddac82c70df313012da5f71f1f06b5553ca","status":"affected","versionType":"git"},{"version":"6ef398ea60d931b97d69ed080bd0bd00fac38ec6","lessThan":"b579f3a73da7a7e74213558f4cc3d865c30aaa78","status":"affected","versionType":"git"},{"version":"6ef398ea60d931b97d69ed080bd0bd00fac38ec6","lessThan":"289499907399c5a9f2ed82cb34df49112bb8488f","status":"affected","versionType":"git"},{"version":"6ef398ea60d931b97d69ed080bd0bd00fac38ec6","lessThan":"a212fc08f5c48a16a94092bf0a9a8b7cf4483b11","status":"affected","versionType":"git"},{"version":"6ef398ea60d931b97d69ed080bd0bd00fac38ec6","lessThan":"3d4ef05266ab16d8ef7dd21658a557801eb78704","status":"affected","versionType":"git"},{"version":"6ef398ea60d931b97d69ed080bd0bd00fac38ec6","lessThan":"49bdf6bbb21b9c6e3f4d0c1910bf0ef98424be95","status":"affected","versionType":"git"},{"version":"6ef398ea60d931b97d69ed080bd0bd00fac38ec6","lessThan":"9a1730245e416d11ad5c0f2c100061d61cc43f60","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/broadcom/genet/bcmgenet.c"],"versions":[{"version":"3.19","status":"affected"},{"version":"0","lessThan":"3.19","status":"unaffected","versionType":"semver"},{"version":"5.10.258","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.209","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.175","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.142","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.92","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.34","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.0.11","lessThanOrEqual":"7.0.*","status":"unaffected","versionType":"semver"},{"version":"7.1","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.19","versionEndExcluding":"5.10.258"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.19","versionEndExcluding":"5.15.209"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.19","versionEndExcluding":"6.1.175"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.19","versionEndExcluding":"6.6.142"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.19","versionEndExcluding":"6.12.92"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.19","versionEndExcluding":"6.18.34"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.19","versionEndExcluding":"7.0.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.19","versionEndExcluding":"7.1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/2040eb83f6ada148fb32dd98b943a498005d79f2"},{"url":"https://git.kernel.org/stable/c/f2782ddac82c70df313012da5f71f1f06b5553ca"},{"url":"https://git.kernel.org/stable/c/b579f3a73da7a7e74213558f4cc3d865c30aaa78"},{"url":"https://git.kernel.org/stable/c/289499907399c5a9f2ed82cb34df49112bb8488f"},{"url":"https://git.kernel.org/stable/c/a212fc08f5c48a16a94092bf0a9a8b7cf4483b11"},{"url":"https://git.kernel.org/stable/c/3d4ef05266ab16d8ef7dd21658a557801eb78704"},{"url":"https://git.kernel.org/stable/c/49bdf6bbb21b9c6e3f4d0c1910bf0ef98424be95"},{"url":"https://git.kernel.org/stable/c/9a1730245e416d11ad5c0f2c100061d61cc43f60"}],"title":"net: bcmgenet: keep RBUF EEE/PM disabled","x_generator":{"engine":"bippy-1.2.0"}}}}