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CVE-2026-23035— net/mlx5e: Pass netdev to mlx5e_destroy_netdev instead of priv

AI Predicted 7.8 Difficulty: Trivial EPSS 0.01% · P1

Affected Version Matrix 8

VendorProductVersion RangeStatus
LinuxLinuxc4d7eb57687f358cd498ea3624519236af8db97e< a7625bacaa8c8c2bfcde6dd6d1397bd63ad82b02affected
c4d7eb57687f358cd498ea3624519236af8db97e< 66a25f6b7c0bfd84e6d27b536f5d24116dbd52daaffected
c4d7eb57687f358cd498ea3624519236af8db97e< 4ef8512e1427111f7ba92b4a847d181ff0aeec42affected
5.12affected
< 5.12unaffected
6.12.67≤ 6.12.*unaffected
6.18.7≤ 6.18.*unaffected
6.19≤ *unaffected
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I. Basic Information for CVE-2026-23035

Vulnerability Information
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Vulnerability Title
net/mlx5e: Pass netdev to mlx5e_destroy_netdev instead of priv
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Pass netdev to mlx5e_destroy_netdev instead of priv mlx5e_priv is an unstable structure that can be memset(0) if profile attaching fails. Pass netdev to mlx5e_destroy_netdev() to guarantee it will work on a valid netdev. On mlx5e_remove: Check validity of priv->profile, before attempting to cleanup any resources that might be not there. This fixes a kernel oops in mlx5e_remove when switchdev mode fails due to change profile failure. $ devlink dev eswitch set pci/0000:00:03.0 mode switchdev Error: mlx5_core: Failed setting eswitch to offloads. dmesg: workqueue: Failed to create a rescuer kthread for wq "mlx5e": -EINTR mlx5_core 0012:03:00.1: mlx5e_netdev_init_profile:6214:(pid 37199): mlx5e_priv_init failed, err=-12 mlx5_core 0012:03:00.1 gpu3rdma1: mlx5e_netdev_change_profile: new profile init failed, -12 workqueue: Failed to create a rescuer kthread for wq "mlx5e": -EINTR mlx5_core 0012:03:00.1: mlx5e_netdev_init_profile:6214:(pid 37199): mlx5e_priv_init failed, err=-12 mlx5_core 0012:03:00.1 gpu3rdma1: mlx5e_netdev_change_profile: failed to rollback to orig profile, -12 $ devlink dev reload pci/0000:00:03.0 ==> oops BUG: kernel NULL pointer dereference, address: 0000000000000370 PGD 0 P4D 0 Oops: Oops: 0000 [#1] SMP NOPTI CPU: 15 UID: 0 PID: 520 Comm: devlink Not tainted 6.18.0-rc5+ #115 PREEMPT(voluntary) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-2.fc40 04/01/2014 RIP: 0010:mlx5e_dcbnl_dscp_app+0x23/0x100 RSP: 0018:ffffc9000083f8b8 EFLAGS: 00010286 RAX: ffff8881126fc380 RBX: ffff8881015ac400 RCX: ffffffff826ffc45 RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8881035109c0 RBP: ffff8881035109c0 R08: ffff888101e3e838 R09: ffff888100264e10 R10: ffffc9000083f898 R11: ffffc9000083f8a0 R12: ffff888101b921a0 R13: ffff888101b921a0 R14: ffff8881015ac9a0 R15: ffff8881015ac400 FS: 00007f789a3c8740(0000) GS:ffff88856aa59000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000370 CR3: 000000010b6c0001 CR4: 0000000000370ef0 Call Trace: <TASK> mlx5e_remove+0x57/0x110 device_release_driver_internal+0x19c/0x200 bus_remove_device+0xc6/0x130 device_del+0x160/0x3d0 ? devl_param_driverinit_value_get+0x2d/0x90 mlx5_detach_device+0x89/0xe0 mlx5_unload_one_devl_locked+0x3a/0x70 mlx5_devlink_reload_down+0xc8/0x220 devlink_reload+0x7d/0x260 devlink_nl_reload_doit+0x45b/0x5a0 genl_family_rcv_msg_doit+0xe8/0x140
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，该漏洞源于使用可能被清零的priv结构，可能导致内核崩溃。
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 c4d7eb57687f358cd498ea3624519236af8db97e ~ a7625bacaa8c8c2bfcde6dd6d1397bd63ad82b02 -
LinuxLinux 5.12 -

II. Public POCs for CVE-2026-23035

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III. Intelligence Information for CVE-2026-23035

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Same Patch Batch · Linux · 2026-01-31 · 37 CVEs total

CVE-2026-23018btrfs: release path before initializing extent tree in btrfs_read_locked_inode()
CVE-2025-71186dmaengine: stm32: dmamux: fix device leak on route allocation
CVE-2025-71185dmaengine: ti: dma-crossbar: fix device leak on am335x route allocation
CVE-2026-23024idpf: fix memory leak of flow steer list on rmmod
CVE-2026-23023idpf: fix memory leak in idpf_vport_rel()
CVE-2026-23022idpf: fix memory leak in idpf_vc_core_deinit()
CVE-2026-23021net: usb: pegasus: fix memory leak in update_eth_regs_async()
CVE-2026-23020net: 3com: 3c59x: fix possible null dereference in vortex_probe1()
CVE-2026-23019net: marvell: prestera: fix NULL dereference on devlink_alloc() failure
CVE-2025-71187dmaengine: sh: rz-dmac: fix device leak on probe failure
CVE-2026-23017idpf: fix error handling in the init_task on load
CVE-2026-23016inet: frags: drop fraglist conntrack references
CVE-2026-23015gpio: mpsse: fix reference leak in gpio_mpsse_probe() error paths
CVE-2025-71184btrfs: fix NULL dereference on root when tracing inode eviction
CVE-2025-71183btrfs: always detect conflicting inodes when logging inode refs
CVE-2025-71182can: j1939: make j1939_session_activate() fail if device is no longer registered
CVE-2025-71181rust_binder: remove spin_lock() in rust_shrink_free_page()
CVE-2025-71180counter: interrupt-cnt: Drop IRQF_NO_THREAD flag
CVE-2026-23029LoongArch: KVM: Fix kvm_device leak in kvm_eiointc_destroy()
CVE-2026-23039drm/gud: fix NULL fb and crtc dereferences on USB disconnect

Showing top 20 of 37 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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