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CVE-2025-21974— eth: bnxt: return fail if interface is down in bnxt_queue_mem_alloc()

EPSS 0.03% · P10
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I. Basic Information for CVE-2025-21974

Vulnerability Information
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Vulnerability Title
eth: bnxt: return fail if interface is down in bnxt_queue_mem_alloc()
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: eth: bnxt: return fail if interface is down in bnxt_queue_mem_alloc() The bnxt_queue_mem_alloc() is called to allocate new queue memory when a queue is restarted. It internally accesses rx buffer descriptor corresponding to the index. The rx buffer descriptor is allocated and set when the interface is up and it's freed when the interface is down. So, if queue is restarted if interface is down, kernel panic occurs. Splat looks like: BUG: unable to handle page fault for address: 000000000000b240 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI CPU: 3 UID: 0 PID: 1563 Comm: ncdevmem2 Not tainted 6.14.0-rc2+ #9 844ddba6e7c459cafd0bf4db9a3198e Hardware name: ASUS System Product Name/PRIME Z690-P D4, BIOS 0603 11/01/2021 RIP: 0010:bnxt_queue_mem_alloc+0x3f/0x4e0 [bnxt_en] Code: 41 54 4d 89 c4 4d 69 c0 c0 05 00 00 55 48 89 f5 53 48 89 fb 4c 8d b5 40 05 00 00 48 83 ec 15 RSP: 0018:ffff9dcc83fef9e8 EFLAGS: 00010202 RAX: ffffffffc0457720 RBX: ffff934ed8d40000 RCX: 0000000000000000 RDX: 000000000000001f RSI: ffff934ea508f800 RDI: ffff934ea508f808 RBP: ffff934ea508f800 R08: 000000000000b240 R09: ffff934e84f4b000 R10: ffff9dcc83fefa30 R11: ffff934e84f4b000 R12: 000000000000001f R13: ffff934ed8d40ac0 R14: ffff934ea508fd40 R15: ffff934e84f4b000 FS: 00007fa73888c740(0000) GS:ffff93559f780000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000000b240 CR3: 0000000145a2e000 CR4: 00000000007506f0 PKRU: 55555554 Call Trace: <TASK> ? __die+0x20/0x70 ? page_fault_oops+0x15a/0x460 ? exc_page_fault+0x6e/0x180 ? asm_exc_page_fault+0x22/0x30 ? __pfx_bnxt_queue_mem_alloc+0x10/0x10 [bnxt_en 7f85e76f4d724ba07471d7e39d9e773aea6597b7] ? bnxt_queue_mem_alloc+0x3f/0x4e0 [bnxt_en 7f85e76f4d724ba07471d7e39d9e773aea6597b7] netdev_rx_queue_restart+0xc5/0x240 net_devmem_bind_dmabuf_to_queue+0xf8/0x200 netdev_nl_bind_rx_doit+0x3a7/0x450 genl_family_rcv_msg_doit+0xd9/0x130 genl_rcv_msg+0x184/0x2b0 ? __pfx_netdev_nl_bind_rx_doit+0x10/0x10 ? __pfx_genl_rcv_msg+0x10/0x10 netlink_rcv_skb+0x54/0x100 genl_rcv+0x24/0x40 ...
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于eth bnxt模块在接口关闭时分配队列内存。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
LinuxLinux 2d694c27d32efc9467a8a20e4ad641ab5adfd07d ~ 14eb5f0d6554653f4b159835c2f77b2a9bd7e9be -
LinuxLinux 6.11 -

II. Public POCs for CVE-2025-21974

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III. Intelligence Information for CVE-2025-21974

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Same Patch Batch · Linux · 2025-04-01 · 93 CVEs total

CVE-2025-219478.1 HIGHksmbd: fix type confusion via race condition when using ipc_msg_send_request
CVE-2025-21925llc: do not use skb_get() before dev_queue_xmit()
CVE-2025-21931hwpoison, memory_hotplug: lock folio before unmap hwpoisoned folio
CVE-2025-21934rapidio: fix an API misues when rio_add_net() fails
CVE-2025-21935rapidio: add check for rio_add_net() in rio_scan_alloc_net()
CVE-2025-21937Bluetooth: Add check for mgmt_alloc_skb() in mgmt_remote_name()
CVE-2025-21936Bluetooth: Add check for mgmt_alloc_skb() in mgmt_device_connected()
CVE-2025-21939drm/xe/hmm: Don't dereference struct page pointers without notifier lock
CVE-2025-21933arm: pgtable: fix NULL pointer dereference issue
CVE-2025-21927nvme-tcp: fix potential memory corruption in nvme_tcp_recv_pdu()
CVE-2025-21926net: gso: fix ownership in __udp_gso_segment
CVE-2025-21928HID: intel-ish-hid: Fix use-after-free issue in ishtp_hid_remove()
CVE-2025-21924net: hns3: make sure ptp clock is unregister and freed if hclge_ptp_get_cycle returns an e
CVE-2025-21922ppp: Fix KMSAN uninit-value warning with bpf
CVE-2025-21923HID: hid-steam: Fix use-after-free when detaching device
CVE-2025-21920vlan: enforce underlying device type
CVE-2025-21921net: ethtool: netlink: Allow NULL nlattrs when getting a phy_device
CVE-2025-21919sched/fair: Fix potential memory corruption in child_cfs_rq_on_list
CVE-2025-21918usb: typec: ucsi: Fix NULL pointer access
CVE-2025-21917usb: renesas_usbhs: Flush the notify_hotplug_work

Showing top 20 of 93 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-21974

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