278 lines
17 KiB
JSON
278 lines
17 KiB
JSON
{
|
|
"dataType": "CVE_RECORD",
|
|
"dataVersion": "5.2",
|
|
"cveMetadata": {
|
|
"cveId": "CVE-2026-52975",
|
|
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"state": "PUBLISHED",
|
|
"assignerShortName": "Linux",
|
|
"dateReserved": "2026-06-09T07:44:35.376Z",
|
|
"datePublished": "2026-06-24T16:28:52.514Z",
|
|
"dateUpdated": "2026-10-19T19:47:11.478Z"
|
|
},
|
|
"containers": {
|
|
"cna": {
|
|
"providerMetadata": {
|
|
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"shortName": "Linux",
|
|
"dateUpdated": "2026-08-05T12:32:17.100Z"
|
|
},
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"value": "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"
|
|
}
|
|
],
|
|
"metrics": [
|
|
{
|
|
"cvssV3_1": {
|
|
"version": "3.1",
|
|
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
|
|
"baseScore": 7.8,
|
|
"baseSeverity": "HIGH"
|
|
},
|
|
"scenarios": [
|
|
{
|
|
"lang": "en",
|
|
"value": "AV:L - The vulnerable paths are local bonding control/information paths such as rtnetlink, sysfs, and procfs racing with the 802.3ad workqueue. A remote packet alone is not sufficient for the complete race; a local attacker can exercise the reader and drive bond state changes.\nAC:L - A local attacker can create/configure an 802.3ad bond in a user/network namespace and repeatedly issue concurrent link queries while the bond workqueue updates port->aggregator. The race is attacker-influenced and does not depend on rare conditions outside the attacker's control.\nPR:L - Bond creation and many control operations require CAP_NET_ADMIN, but that is reachable by an unprivileged user inside a user namespace. RTM_GETLINK-style readers are even less restricted, but exploitation still assumes a local unprivileged user context.\nUI:N - No victim action is required once the attacker can run local commands or netlink requests. The attacker can trigger the relevant reader and writer activity directly.\nS:U - The impact remains within the kernel and the host networking subsystem security authority. This is not a VM escape, IOMMU bypass, or cross-scope boundary violation.\nC:H - The bug is an RCU lifetime violation on port->aggregator, which points into per-slave ad_slave_info memory that can be cleared, freed, or reused. Treating the stale-pointer/UAF condition conservatively, it can expose kernel memory through groomed object reuse.\nI:H - A stale kernel pointer/UAF in attacker-controllable bonding state is a memory-safety issue that can plausibly be heap-groomed beyond a simple crash. Under the required overestimation rule, this supports high integrity impact.\nA:H - At minimum, racing dereferences of port->aggregator can lead to invalid pointer dereferences, inconsistent list traversal, oops, or panic. The vulnerability is therefore capable of causing a kernel-level denial of service."
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"affected": [
|
|
{
|
|
"product": "Linux",
|
|
"vendor": "Linux",
|
|
"defaultStatus": "unaffected",
|
|
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
|
|
"programFiles": [
|
|
"drivers/net/bonding/bond_3ad.c",
|
|
"drivers/net/bonding/bond_main.c",
|
|
"drivers/net/bonding/bond_netlink.c",
|
|
"drivers/net/bonding/bond_procfs.c",
|
|
"drivers/net/bonding/bond_sysfs_slave.c",
|
|
"include/net/bond_3ad.h"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "47e91f56008b43e1365e8d1d4a6813fe8a33b6f6",
|
|
"lessThan": "ba2272be04f0cb1e74e1e355ff32ef95df280731",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "47e91f56008b43e1365e8d1d4a6813fe8a33b6f6",
|
|
"lessThan": "3b7265b3a82f40d2357c4004b26eb794a095b186",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "47e91f56008b43e1365e8d1d4a6813fe8a33b6f6",
|
|
"lessThan": "5fb9ea4e8ebf514d92df2b6c9d0db25ba02ac735",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "47e91f56008b43e1365e8d1d4a6813fe8a33b6f6",
|
|
"lessThan": "c169c5837525ad842df6a542facf52b6f866a519",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "47e91f56008b43e1365e8d1d4a6813fe8a33b6f6",
|
|
"lessThan": "78f409fd34fe9de2b24ad8e9dca1b4608a48ed3d",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "47e91f56008b43e1365e8d1d4a6813fe8a33b6f6",
|
|
"lessThan": "c4f050ce06c56cfb5993268af4a5cb66ed1cd04e",
|
|
"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/bonding/bond_3ad.c",
|
|
"drivers/net/bonding/bond_main.c",
|
|
"drivers/net/bonding/bond_netlink.c",
|
|
"drivers/net/bonding/bond_procfs.c",
|
|
"drivers/net/bonding/bond_sysfs_slave.c",
|
|
"include/net/bond_3ad.h"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "3.13",
|
|
"status": "affected"
|
|
},
|
|
{
|
|
"version": "0",
|
|
"lessThan": "3.13",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.1.175",
|
|
"lessThanOrEqual": "6.1.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.6.141",
|
|
"lessThanOrEqual": "6.6.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.12.95",
|
|
"lessThanOrEqual": "6.12.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.18.33",
|
|
"lessThanOrEqual": "6.18.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "7.0.10",
|
|
"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": "3.13",
|
|
"versionEndExcluding": "6.1.175"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "3.13",
|
|
"versionEndExcluding": "6.6.141"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "3.13",
|
|
"versionEndExcluding": "6.12.95"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "3.13",
|
|
"versionEndExcluding": "6.18.33"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "3.13",
|
|
"versionEndExcluding": "7.0.10"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "3.13",
|
|
"versionEndExcluding": "7.1"
|
|
}
|
|
]
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"references": [
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/ba2272be04f0cb1e74e1e355ff32ef95df280731"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/3b7265b3a82f40d2357c4004b26eb794a095b186"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/5fb9ea4e8ebf514d92df2b6c9d0db25ba02ac735"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/c169c5837525ad842df6a542facf52b6f866a519"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/78f409fd34fe9de2b24ad8e9dca1b4608a48ed3d"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/c4f050ce06c56cfb5993268af4a5cb66ed1cd04e"
|
|
}
|
|
],
|
|
"title": "bonding: 3ad: implement proper RCU rules for port->aggregator",
|
|
"x_generator": {
|
|
"engine": "bippy-1.2.0"
|
|
}
|
|
},
|
|
"adp": [
|
|
{
|
|
"metrics": [
|
|
{
|
|
"other": {
|
|
"type": "ssvc",
|
|
"content": {
|
|
"id": "CVE-2026-52975",
|
|
"role": "CISA Coordinator",
|
|
"options": [
|
|
{
|
|
"Exploitation": "none"
|
|
},
|
|
{
|
|
"Automatable": "no"
|
|
},
|
|
{
|
|
"Technical Impact": "total"
|
|
}
|
|
],
|
|
"version": "2.0.3",
|
|
"timestamp": "2026-10-16T15:23:51.641061Z"
|
|
}
|
|
}
|
|
}
|
|
],
|
|
"problemTypes": [
|
|
{
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"type": "CWE",
|
|
"cweId": "CWE-362",
|
|
"description": "CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"title": "CISA ADP Vulnrichment",
|
|
"providerMetadata": {
|
|
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
|
|
"shortName": "CISA-ADP",
|
|
"dateUpdated": "2026-10-19T19:47:11.478Z"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
} |