{"cve":{"cve_id":"CVE-2026-52975","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":null,"epss_percentile":null,"epss_as_of":null,"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbonding: 3ad: implement proper RCU rules for port->aggregator\n\nsyzbot found a data-race in bond_3ad_get_active_agg_info /\nbond_3ad_state_machine_handler [1] which hints at lack of proper\nRCU implementation.\n\nAdd __rcu qualifier to port->aggregator, and add proper RCU API.\n\n[1]\n\nBUG: KCSAN: data-race in bond_3ad_get_active_agg_info / bond_3ad_state_machine_handler\n\nwrite to 0xffff88813cf5c4b0 of 8 bytes by task 36 on cpu 0:\n  ad_port_selection_logic drivers/net/bonding/bond_3ad.c:1659 [inline]\n  bond_3ad_state_machine_handler+0x9d5/0x2d60 drivers/net/bonding/bond_3ad.c:2569\n  process_one_work kernel/workqueue.c:3302 [inline]\n  process_scheduled_works+0x4f0/0x9c0 kernel/workqueue.c:3385\n  worker_thread+0x58a/0x780 kernel/workqueue.c:3466\n  kthread+0x22a/0x280 kernel/kthread.c:436\n  ret_from_fork+0x146/0x330 arch/x86/kernel/process.c:158\n  ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245\n\nread to 0xffff88813cf5c4b0 of 8 bytes by task 22063 on cpu 1:\n  __bond_3ad_get_active_agg_info drivers/net/bonding/bond_3ad.c:2858 [inline]\n  bond_3ad_get_active_agg_info+0x8c/0x230 drivers/net/bonding/bond_3ad.c:2881\n  bond_fill_info+0xe0f/0x10f0 drivers/net/bonding/bond_netlink.c:853\n  rtnl_link_info_fill net/core/rtnetlink.c:906 [inline]\n  rtnl_link_fill+0x1d7/0x4e0 net/core/rtnetlink.c:927\n  rtnl_fill_ifinfo+0xf8e/0x1380 net/core/rtnetlink.c:2168\n  rtmsg_ifinfo_build_skb+0x11c/0x1b0 net/core/rtnetlink.c:4453\n  rtmsg_ifinfo_event net/core/rtnetlink.c:4486 [inline]\n  rtmsg_ifinfo+0x6d/0x110 net/core/rtnetlink.c:4495\n  __dev_notify_flags+0x76/0x390 net/core/dev.c:9790\n  netif_change_flags+0xac/0xd0 net/core/dev.c:9823\n  do_setlink+0x905/0x2950 net/core/rtnetlink.c:3180\n  rtnl_group_changelink net/core/rtnetlink.c:3813 [inline]\n  __rtnl_newlink net/core/rtnetlink.c:3981 [inline]\n  rtnl_newlink+0xf55/0x1400 net/core/rtnetlink.c:4109\n  rtnetlink_rcv_msg+0x64b/0x720 net/core/rtnetlink.c:6995\n  netlink_rcv_skb+0x123/0x220 net/netlink/af_netlink.c:2550\n  rtnetlink_rcv+0x1c/0x30 net/core/rtnetlink.c:7022\n  netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]\n  netlink_unicast+0x5a8/0x680 net/netlink/af_netlink.c:1344\n  netlink_sendmsg+0x5c8/0x6f0 net/netlink/af_netlink.c:1894\n  sock_sendmsg_nosec net/socket.c:787 [inline]\n  __sock_sendmsg net/socket.c:802 [inline]\n  ____sys_sendmsg+0x563/0x5b0 net/socket.c:2698\n  ___sys_sendmsg+0x195/0x1e0 net/socket.c:2752\n  __sys_sendmsg net/socket.c:2784 [inline]\n  __do_sys_sendmsg net/socket.c:2789 [inline]\n  __se_sys_sendmsg net/socket.c:2787 [inline]\n  __x64_sys_sendmsg+0xd4/0x160 net/socket.c:2787\n  x64_sys_call+0x194c/0x3020 arch/x86/include/generated/asm/syscalls_64.h:47\n  do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n  do_syscall_64+0x12c/0x3b0 arch/x86/entry/syscall_64.c:94\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nvalue changed: 0x0000000000000000 -> 0xffff88813cf5c400\n\nReported by Kernel Concurrency Sanitizer on:\nCPU: 1 UID: 0 PID: 22063 Comm: syz.0.31122 Tainted: G        W           syzkaller #0 PREEMPT(full)\nTainted: [W]=WARN\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026","published_at":"2026-06-24T16:28:52.514000Z","last_modified_at":null,"cvss_v3_score":7.8,"cvss_v3_vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cvss_v3_severity":"HIGH","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":null,"nvd_references":["https://git.kernel.org/stable/c/ba2272be04f0cb1e74e1e355ff32ef95df280731","https://git.kernel.org/stable/c/3b7265b3a82f40d2357c4004b26eb794a095b186","https://git.kernel.org/stable/c/c169c5837525ad842df6a542facf52b6f866a519","https://git.kernel.org/stable/c/78f409fd34fe9de2b24ad8e9dca1b4608a48ed3d","https://git.kernel.org/stable/c/c4f050ce06c56cfb5993268af4a5cb66ed1cd04e"],"vuln_status":null,"trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-28T17:55:22.518073Z","updated_at":"2026-06-28T23:30:49.890169Z"},"effective_severity":"HIGH","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"L","value_label":"Local"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"L","value_label":"Low"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"H","value_label":"High"},{"metric":"I","name":"Integrity","value":"H","value_label":"High"},{"metric":"A","name":"Availability","value":"H","value_label":"High"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"47e91f56008b43e1365e8d1d4a6813fe8a33b6f6","version_start_inclusive":true,"version_end":"ba2272be04f0cb1e74e1e355ff32ef95df280731","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:47e91f56008b43e1365e8d1d4a6813fe8a33b6f6:ba2272be04f0cb1e74e1e355ff32ef95df280731"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"47e91f56008b43e1365e8d1d4a6813fe8a33b6f6","version_start_inclusive":true,"version_end":"3b7265b3a82f40d2357c4004b26eb794a095b186","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:47e91f56008b43e1365e8d1d4a6813fe8a33b6f6:3b7265b3a82f40d2357c4004b26eb794a095b186"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"47e91f56008b43e1365e8d1d4a6813fe8a33b6f6","version_start_inclusive":true,"version_end":"c169c5837525ad842df6a542facf52b6f866a519","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:47e91f56008b43e1365e8d1d4a6813fe8a33b6f6:c169c5837525ad842df6a542facf52b6f866a519"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"47e91f56008b43e1365e8d1d4a6813fe8a33b6f6","version_start_inclusive":true,"version_end":"78f409fd34fe9de2b24ad8e9dca1b4608a48ed3d","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:47e91f56008b43e1365e8d1d4a6813fe8a33b6f6:78f409fd34fe9de2b24ad8e9dca1b4608a48ed3d"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"47e91f56008b43e1365e8d1d4a6813fe8a33b6f6","version_start_inclusive":true,"version_end":"c4f050ce06c56cfb5993268af4a5cb66ed1cd04e","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:47e91f56008b43e1365e8d1d4a6813fe8a33b6f6:c4f050ce06c56cfb5993268af4a5cb66ed1cd04e"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"3.13","version_start_inclusive":true,"version_end":"3.13","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:3.13:3.13"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"0","version_start_inclusive":true,"version_end":"3.13","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:0:3.13"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.1.175","version_start_inclusive":true,"version_end":"6.1.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.1.175:6.1.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.6.141","version_start_inclusive":true,"version_end":"6.6.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.6.141:6.6.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.18.33","version_start_inclusive":true,"version_end":"6.18.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.18.33:6.18.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"7.0.10","version_start_inclusive":true,"version_end":"7.0.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:7.0.10:7.0.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"7.1","version_start_inclusive":true,"version_end":"*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:7.1:*"}],"exploit_refs":[],"news":[],"references":[{"url":"https://git.kernel.org/stable/c/ba2272be04f0cb1e74e1e355ff32ef95df280731","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/3b7265b3a82f40d2357c4004b26eb794a095b186","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/c169c5837525ad842df6a542facf52b6f866a519","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/78f409fd34fe9de2b24ad8e9dca1b4608a48ed3d","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/c4f050ce06c56cfb5993268af4a5cb66ed1cd04e","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2026-06-24T16:28:52.514000Z","label":"CVE published","source":null}]}