CVE-2026-99061

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-99061", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.388Z", "datePublished": "2026-10-23T12:22:59.770Z", "dateUpdated": "2026-10-30T12:41:26.663Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-30T12:41:26.663Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: brcmfmac: fix P2P device removal race in brcmf_detach()\n\nWhen the driver is removed while the user space process that created\nthe P2P device (e.g. wpa_supplicant) is still exiting, the P2P device\ninterface is removed twice and the kernel crashes.\n\nThe two paths are:\n\n - wpa_supplicant, on exit, sends NL80211_CMD_DEL_INTERFACE for the P2P\n device. nl80211_del_interface() holds RTNL and the wiphy mutex and\n calls brcmf_p2p_del_vif(), which disables discovery and waits up to\n 1.5 s for BRCMF_E_IF_DEL. Then it calls brcmf_remove_interface(),\n which unregisters the wdev and frees the vif and the ifp.\n\n - brcmf_detach() sets the bus down, so BRCMF_E_IF_DEL never arrives,\n and calls brcmf_remove_interface(ifp, false) for the same ifp.\n brcmf_p2p_ifp_removed() reads ifp->vif and then blocks on\n rtnl_lock(). When brcmf_p2p_del_vif() releases RTNL, it calls\n cfg80211_unregister_wdev() on the wdev that was already unregistered\n and freed.\n\nThe second list_del_rcu() of wdev->list faults on LIST_POISON2:\n\n brcmfmac: brcmf_p2p_del_vif delete P2P vif\n brcmfmac: brcmf_p2p_deinit_discovery enter\n brcmfmac: brcmf_p2p_del_vif P2P: GO_NEG_PHASE status cleared\n brcmfmac: brcmf_detach Enter\n brcmfmac: brcmf_bus_change_state 1 -> 0\n brcmfmac: brcmf_remove_interface Enter, bsscfgidx=1, ifidx=0\n brcmfmac: brcmf_del_if Enter, bsscfgidx=1, ifidx=0\n brcmfmac: brcmf_p2p_ifp_removed P2P: device interface removed\n [1.5 s later, brcmf_p2p_del_vif() timed out]\n brcmfmac: brcmf_remove_interface Enter, bsscfgidx=1, ifidx=0\n brcmfmac: brcmf_del_if Enter, bsscfgidx=1, ifidx=0\n brcmfmac: brcmf_p2p_ifp_removed P2P: device interface removed\n Unable to handle kernel paging request at virtual address dead000000000122\n Internal error: Oops: 96000044 [#1] PREEMPT_RT SMP\n pc : _cfg80211_unregister_wdev+0x6c/0x264 [cfg80211]\n Call trace:\n _cfg80211_unregister_wdev+0x6c/0x264 [cfg80211]\n cfg80211_unregister_wdev+0x10/0x1c [cfg80211]\n brcmf_p2p_ifp_removed+0x84/0xb0 [brcmfmac]\n brcmf_remove_interface+0x1f4/0x254 [brcmfmac]\n brcmf_detach+0x88/0x180 [brcmfmac]\n brcmf_sdio_remove+0x90/0x7b0 [brcmfmac]\n brcmf_sdiod_remove+0x20/0xa0 [brcmfmac]\n brcmf_ops_sdio_remove+0xbc/0x12c [brcmfmac]\n sdio_bus_remove+0x38/0x144\n device_release_driver_internal+0x1e8/0x2c0\n device_release_driver+0x14/0x20\n brcmf_sdio_bus_remove+0x2c/0x40 [brcmfmac]\n brcmf_fwvid_unregister_vendor+0xd8/0x170 [brcmfmac]\n __exit_compat+0x18/0x418 [brcmfmac_cyw]\n __arm64_sys_delete_module+0x1ac/0x244\n\nThe log was taken with debug=0x406 on an i.MX 8M Plus board with a\nCYW55513 (Sona IF513) on SDIO. The driver is the Ezurio backport of\nbrcmfmac from v6.18.22 on a 5.4-rt kernel. The code involved is the same\nin mainline.\n\nTo reproduce:\n\n 1. Start wpa_supplicant on wlan0 and let it associate. It creates the\n P2P device (iw dev shows \"type P2P-device\").\n 2. Stop wpa_supplicant and remove the driver without waiting for\n wpa_supplicant to exit:\n\n kill $(pidof wpa_supplicant)\n rmmod brcmfmac_cyw brcmfmac\n\nThe crash is reproducible on that board.\n\nFor the interface without a netdev (the P2P device), take RTNL and the\nwiphy mutex in brcmf_detach() before reading iflist, and remove it with\nlocked=true. If brcmf_p2p_del_vif() runs first, brcmf_detach() finds the\nslot empty. If brcmf_detach() runs first, nl80211 does not find the wdev\nany more. The interfaces with a netdev are removed as before, because\nbrcmf_del_if() takes RTNL on its own for the primary interface."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c"], "versions": [{"version": "9831bcb987df4aff6a1d85975f1dda4c654f298d", "lessThan": "75e917473e20dea61f837f9afb5fc3435c9200d2", "status": "affected", "versionType": "git"}, {"version": "9831bcb987df4aff6a1d85975f1dda4c654f298d", "lessThan": "c4c0659eb74f807e0e73742b101a07b0bb703d97", "status": "affected", "versionType": "git"}, {"version": "9831bcb987df4aff6a1d85975f1dda4c654f298d", "lessThan": "0f84eec09039deb9229fd35c55912a2397d3ae55", "status": "affected", "versionType": "git"}, {"version": "9831bcb987df4aff6a1d85975f1dda4c654f298d", "lessThan": "7b79131e357c4786765b20a994ad40d4d35f2163", "status": "affected", "versionType": "git"}, {"version": "9831bcb987df4aff6a1d85975f1dda4c654f298d", "lessThan": "2e0c8c60a11b3177e7432c71d41249e276a0825f", "status": "affected", "versionType": "git"}, {"version": "9831bcb987df4aff6a1d85975f1dda4c654f298d", "lessThan": "eef16a74ff8ed2a838d6bb862bb2c7783fce7466", "status": "affected", "versionType": "git"}, {"version": "9831bcb987df4aff6a1d85975f1dda4c654f298d", "lessThan": "47ca6395a1d91545cc9403f9218bc61be941a0c3", "status": "affected", "versionType": "git"}, {"version": "9831bcb987df4aff6a1d85975f1dda4c654f298d", "lessThan": "08a3f02fea636e97a7422d1512f76dacdb5b0887", "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/wireless/broadcom/brcm80211/brcmfmac/core.c"], "versions": [{"version": "4.4", "status": "affected"}, {"version": "0", "lessThan": "4.4", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.273", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.224", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.191", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.160", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.113", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.57", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.11", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "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": "4.4", "versionEndExcluding": "5.10.273"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.4", "versionEndExcluding": "5.15.224"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.4", "versionEndExcluding": "6.1.191"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.4", "versionEndExcluding": "6.6.160"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.4", "versionEndExcluding": "6.12.113"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.4", "versionEndExcluding": "6.18.57"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.4", "versionEndExcluding": "7.2.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.4", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/75e917473e20dea61f837f9afb5fc3435c9200d2"}, {"url": "https://git.kernel.org/stable/c/c4c0659eb74f807e0e73742b101a07b0bb703d97"}, {"url": "https://git.kernel.org/stable/c/0f84eec09039deb9229fd35c55912a2397d3ae55"}, {"url": "https://git.kernel.org/stable/c/7b79131e357c4786765b20a994ad40d4d35f2163"}, {"url": "https://git.kernel.org/stable/c/2e0c8c60a11b3177e7432c71d41249e276a0825f"}, {"url": "https://git.kernel.org/stable/c/eef16a74ff8ed2a838d6bb862bb2c7783fce7466"}, {"url": "https://git.kernel.org/stable/c/47ca6395a1d91545cc9403f9218bc61be941a0c3"}, {"url": "https://git.kernel.org/stable/c/08a3f02fea636e97a7422d1512f76dacdb5b0887"}], "title": "wifi: brcmfmac: fix P2P device removal race in brcmf_detach()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "75e917473e20dea61f837f9afb5fc3435c9200d2", "status": "affected", "version": "9831bcb987df4aff6a1d85975f1dda4c654f298d", "versionType": "git"}, {"lessThan": "c4c0659eb74f807e0e73742b101a07b0bb703d97", "status": "affected", "version": "9831bcb987df4aff6a1d85975f1dda4c654f298d", "versionType": "git"}, {"lessThan": "0f84eec09039deb9229fd35c55912a2397d3ae55", "status": "affected", "version": "9831bcb987df4aff6a1d85975f1dda4c654f298d", "versionType": "git"}, {"lessThan": "7b79131e357c4786765b20a994ad40d4d35f2163", "status": "affected", "version": "9831bcb987df4aff6a1d85975f1dda4c654f298d", "versionType": "git"}, {"lessThan": "2e0c8c60a11b3177e7432c71d41249e276a0825f", "status": "affected", "version": "9831bcb987df4aff6a1d85975f1dda4c654f298d", "versionType": "git"}, {"lessThan": "eef16a74ff8ed2a838d6bb862bb2c7783fce7466", "status": "affected", "version": "9831bcb987df4aff6a1d85975f1dda4c654f298d", "versionType": "git"}, {"lessThan": "47ca6395a1d91545cc9403f9218bc61be941a0c3", "status": "affected", "version": "9831bcb987df4aff6a1d85975f1dda4c654f298d", "versionType": "git"}, {"lessThan": "08a3f02fea636e97a7422d1512f76dacdb5b0887", "status": "affected", "version": "9831bcb987df4aff6a1d85975f1dda4c654f298d", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "4.4"}, {"lessThan": "4.4", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.273", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.224", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.191", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.160", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.113", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.57", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.11", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: brcmfmac: fix P2P device removal race in brcmf_detach()\n\nWhen the driver is removed while the user space process that created\nthe P2P device (e.g. wpa_supplicant) is still exiting, the P2P device\ninterface is removed twice and the kernel crashes.\n\nThe two paths are:\n\n - wpa_supplicant, on exit, sends NL80211_CMD_DEL_INTERFACE for the P2P\n device. nl80211_del_interface() holds RTNL and the wiphy mutex and\n calls brcmf_p2p_del_vif(), which disables discovery and waits up to\n 1.5 s for BRCMF_E_IF_DEL. Then it calls brcmf_remove_interface(),\n which unregisters the wdev and frees the vif and the ifp.\n\n - brcmf_detach() sets the bus down, so BRCMF_E_IF_DEL never arrives,\n and calls brcmf_remove_interface(ifp, false) for the same ifp.\n brcmf_p2p_ifp_removed() reads ifp->vif and then blocks on\n rtnl_lock(). When brcmf_p2p_del_vif() releases RTNL, it calls\n cfg80211_unregister_wdev() on the wdev that was already unregistered\n and freed.\n\nThe second list_del_rcu() of wdev->list faults on LIST_POISON2:\n\n brcmfmac: brcmf_p2p_del_vif delete P2P vif\n brcmfmac: brcmf_p2p_deinit_discovery enter\n brcmfmac: brcmf_p2p_del_vif P2P: GO_NEG_PHASE status cleared\n brcmfmac: brcmf_detach Enter\n brcmfmac: brcmf_bus_change_state 1 -> 0\n brcmfmac: brcmf_remove_interface Enter, bsscfgidx=1, ifidx=0\n brcmfmac: brcmf_del_if Enter, bsscfgidx=1, ifidx=0\n brcmfmac: brcmf_p2p_ifp_removed P2P: device interface removed\n [1.5 s later, brcmf_p2p_del_vif() timed out]\n brcmfmac: brcmf_remove_interface Enter, bsscfgidx=1, ifidx=0\n brcmfmac: brcmf_del_if Enter, bsscfgidx=1, ifidx=0\n brcmfmac: brcmf_p2p_ifp_removed P2P: device interface removed\n Unable to handle kernel paging request at virtual address dead000000000122\n Internal error: Oops: 96000044 [#1] PREEMPT_RT SMP\n pc : _cfg80211_unregister_wdev+0x6c/0x264 [cfg80211]\n Call trace:\n _cfg80211_unregister_wdev+0x6c/0x264 [cfg80211]\n cfg80211_unregister_wdev+0x10/0x1c [cfg80211]\n brcmf_p2p_ifp_removed+0x84/0xb0 [brcmfmac]\n brcmf_remove_interface+0x1f4/0x254 [brcmfmac]\n brcmf_detach+0x88/0x180 [brcmfmac]\n brcmf_sdio_remove+0x90/0x7b0 [brcmfmac]\n brcmf_sdiod_remove+0x20/0xa0 [brcmfmac]\n brcmf_ops_sdio_remove+0xbc/0x12c [brcmfmac]\n sdio_bus_remove+0x38/0x144\n device_release_driver_internal+0x1e8/0x2c0\n device_release_driver+0x14/0x20\n brcmf_sdio_bus_remove+0x2c/0x40 [brcmfmac]\n brcmf_fwvid_unregister_vendor+0xd8/0x170 [brcmfmac]\n __exit_compat+0x18/0x418 [brcmfmac_cyw]\n __arm64_sys_delete_module+0x1ac/0x244\n\nThe log was taken with debug=0x406 on an i.MX 8M Plus board with a\nCYW55513 (Sona IF513) on SDIO. The driver is the Ezurio backport of\nbrcmfmac from v6.18.22 on a 5.4-rt kernel. The code involved is the same\nin mainline.\n\nTo reproduce:\n\n 1. Start wpa_supplicant on wlan0 and let it associate. It creates the\n P2P device (iw dev shows \"type P2P-device\").\n 2. Stop wpa_supplicant and remove the driver without waiting for\n wpa_supplicant to exit:\n\n kill $(pidof wpa_supplicant)\n rmmod brcmfmac_cyw brcmfmac\n\nThe crash is reproducible on that board.\n\nFor the interface without a netdev (the P2P device), take RTNL and the\nwiphy mutex in brcmf_detach() before reading iflist, and remove it with\nlocked=true. If brcmf_p2p_del_vif() runs first, brcmf_detach() finds the\nslot empty. If brcmf_detach() runs first, nl80211 does not find the wdev\nany more. The interfaces with a netdev are removed as before, because\nbrcmf_del_if() takes RTNL on its own for the primary interface."}], "id": "CVE-2026-99061", "lastModified": "2026-10-30T13:21:42.887", "metrics": {}, "published": "2026-10-23T13:17:29.873", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/08a3f02fea636e97a7422d1512f76dacdb5b0887"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0f84eec09039deb9229fd35c55912a2397d3ae55"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2e0c8c60a11b3177e7432c71d41249e276a0825f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/47ca6395a1d91545cc9403f9218bc61be941a0c3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/75e917473e20dea61f837f9afb5fc3435c9200d2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7b79131e357c4786765b20a994ad40d4d35f2163"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c4c0659eb74f807e0e73742b101a07b0bb703d97"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/eef16a74ff8ed2a838d6bb862bb2c7783fce7466"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: wifi: brcmfmac: fix P2P device removal race in brcmf_detach()", "id": "2559758", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2559758"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.1", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-825", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nwifi: brcmfmac: fix P2P device removal race in brcmf_detach()\nWhen the driver is removed while the user space process that created\nthe P2P device (e.g. wpa_supplicant) is still exiting, the P2P device\ninterface is removed twice and the kernel crashes.\nThe two paths are:\n- wpa_supplicant, on exit, sends NL80211_CMD_DEL_INTERFACE for the P2P\ndevice. nl80211_del_interface() holds RTNL and the wiphy mutex and\ncalls brcmf_p2p_del_vif(), which disables discovery and waits up to\n1.5 s for BRCMF_E_IF_DEL. Then it calls brcmf_remove_interface(),\nwhich unregisters the wdev and frees the vif and the ifp.\n- brcmf_detach() sets the bus down, so BRCMF_E_IF_DEL never arrives,\nand calls brcmf_remove_interface(ifp, false) for the same ifp.\nbrcmf_p2p_ifp_removed() reads ifp->vif and then blocks on\nrtnl_lock(). When brcmf_p2p_del_vif() releases RTNL, it calls\ncfg80211_unregister_wdev() on the wdev that was already unregistered\nand freed.\nThe second list_del_rcu() of wdev->list faults on LIST_POISON2:\nbrcmfmac: brcmf_p2p_del_vif delete P2P vif\nbrcmfmac: brcmf_p2p_deinit_discovery enter\nbrcmfmac: brcmf_p2p_del_vif P2P: GO_NEG_PHASE status cleared\nbrcmfmac: brcmf_detach Enter\nbrcmfmac: brcmf_bus_change_state 1 -> 0\nbrcmfmac: brcmf_remove_interface Enter, bsscfgidx=1, ifidx=0\nbrcmfmac: brcmf_del_if Enter, bsscfgidx=1, ifidx=0\nbrcmfmac: brcmf_p2p_ifp_removed P2P: device interface removed\n[1.5 s later, brcmf_p2p_del_vif() timed out]\nbrcmfmac: brcmf_remove_interface Enter, bsscfgidx=1, ifidx=0\nbrcmfmac: brcmf_del_if Enter, bsscfgidx=1, ifidx=0\nbrcmfmac: brcmf_p2p_ifp_removed P2P: device interface removed\nUnable to handle kernel paging request at virtual address dead000000000122\nInternal error: Oops: 96000044 [#1] PREEMPT_RT SMP\npc : _cfg80211_unregister_wdev+0x6c/0x264 [cfg80211]\nCall trace:\n_cfg80211_unregister_wdev+0x6c/0x264 [cfg80211]\ncfg80211_unregister_wdev+0x10/0x1c [cfg80211]\nbrcmf_p2p_ifp_removed+0x84/0xb0 [brcmfmac]\nbrcmf_remove_interface+0x1f4/0x254 [brcmfmac]\nbrcmf_detach+0x88/0x180 [brcmfmac]\nbrcmf_sdio_remove+0x90/0x7b0 [brcmfmac]\nbrcmf_sdiod_remove+0x20/0xa0 [brcmfmac]\nbrcmf_ops_sdio_remove+0xbc/0x12c [brcmfmac]\nsdio_bus_remove+0x38/0x144\ndevice_release_driver_internal+0x1e8/0x2c0\ndevice_release_driver+0x14/0x20\nbrcmf_sdio_bus_remove+0x2c/0x40 [brcmfmac]\nbrcmf_fwvid_unregister_vendor+0xd8/0x170 [brcmfmac]\n__exit_compat+0x18/0x418 [brcmfmac_cyw]\n__arm64_sys_delete_module+0x1ac/0x244\nThe log was taken with debug=0x406 on an i.MX 8M Plus board with a\nCYW55513 (Sona IF513) on SDIO. The driver is the Ezurio backport of\nbrcmfmac from v6.18.22 on a 5.4-rt kernel. The code involved is the same\nin mainline.\nTo reproduce:\n1. Start wpa_supplicant on wlan0 and let it associate. It creates the\nP2P device (iw dev shows \"type P2P-device\").\n2. Stop wpa_supplicant and remove the driver without waiting for\nwpa_supplicant to exit:\nkill $(pidof wpa_supplicant)\nrmmod brcmfmac_cyw brcmfmac\nThe crash is reproducible on that board.\nFor the interface without a netdev (the P2P device), take RTNL and the\nwiphy mutex in brcmf_detach() before reading iflist, and remove it with\nlocked=true. If brcmf_p2p_del_vif() runs first, brcmf_detach() finds the\nslot empty. If brcmf_detach() runs first, nl80211 does not find the wdev\nany more. The interfaces with a netdev are removed as before, because\nbrcmf_del_if() takes RTNL on its own for the primary interface.", "A flaw was found in the Linux kernel's brcmfmac wireless driver. This vulnerability can lead to a Denial of Service (DoS) caused by a race condition during the removal of peer-to-peer (P2P) device interfaces. A local user could trigger this flaw by unloading the driver while the user space process managing the interface is shutting down, causing resources to be freed twice and resulting in a kernel crash."], "name": "CVE-2026-99061", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "package_name": "openshift/ose-rhel-coreos-8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-10-23T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-99061\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-99061\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-99061.mbox"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9831bcb987df4aff6a1d85975f1dda4c654f298d,7b79131e357c4786765b20a994ad40d4d35f2163)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9831bcb987df4aff6a1d85975f1dda4c654f298d,2e0c8c60a11b3177e7432c71d41249e276a0825f)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9831bcb987df4aff6a1d85975f1dda4c654f298d,eef16a74ff8ed2a838d6bb862bb2c7783fce7466)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9831bcb987df4aff6a1d85975f1dda4c654f298d,47ca6395a1d91545cc9403f9218bc61be941a0c3)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9831bcb987df4aff6a1d85975f1dda4c654f298d,08a3f02fea636e97a7422d1512f76dacdb5b0887)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "4.4"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,4.4)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.160,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.113,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.57,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.11,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,*]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9831bcb987df4aff6a1d85975f1dda4c654f298d,7b79131e357c4786765b20a994ad40d4d35f2163)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9831bcb987df4aff6a1d85975f1dda4c654f298d,2e0c8c60a11b3177e7432c71d41249e276a0825f)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9831bcb987df4aff6a1d85975f1dda4c654f298d,eef16a74ff8ed2a838d6bb862bb2c7783fce7466)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9831bcb987df4aff6a1d85975f1dda4c654f298d,47ca6395a1d91545cc9403f9218bc61be941a0c3)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9831bcb987df4aff6a1d85975f1dda4c654f298d,08a3f02fea636e97a7422d1512f76dacdb5b0887)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "4.4"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,4.4)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.160,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.113,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.57,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.11,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,*]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-10-23T15:45:16.729177+00:00", "updated": "2026-10-27T22:30:10.512876+00:00", "vendors": ["linux", "linux$PRODUCT$linux", "linux$PRODUCT$linux_kernel"]}