CVE-2026-43199

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-43199
In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fix "scheduling while atomic" in IPsec MAC address query Fix a "scheduling while atomic" bug in mlx5e_ipsec_init_macs() by replacing mlx5_query_mac_address() with ether_addr_copy() to get the local MAC address directly from netdev->dev_addr. The issue occurs because mlx5_query_mac_address() queries the hardware which involves mlx5_cmd_exec() that can sleep, but it is called from the mlx5e_ipsec_handle_event workqueue which runs in atomic context. The MAC address is already available in netdev->dev_addr, so no need to query hardware. This avoids the sleeping call and resolves the bug. Call trace: BUG: scheduling while atomic: kworker/u112:2/69344/0x00000200 __schedule+0x7ab/0xa20 schedule+0x1c/0xb0 schedule_timeout+0x6e/0xf0 __wait_for_common+0x91/0x1b0 cmd_exec+0xa85/0xff0 [mlx5_core] mlx5_cmd_exec+0x1f/0x50 [mlx5_core] mlx5_query_nic_vport_mac_address+0x7b/0xd0 [mlx5_core] mlx5_query_mac_address+0x19/0x30 [mlx5_core] mlx5e_ipsec_init_macs+0xc1/0x720 [mlx5_core] mlx5e_ipsec_build_accel_xfrm_attrs+0x422/0x670 [mlx5_core] mlx5e_ipsec_handle_event+0x2b9/0x460 [mlx5_core] process_one_work+0x178/0x2e0 worker_thread+0x2ea/0x430

7.5 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/546de94e41e92e1f7dc6213615fb7c794d05db98 Patch
https://git.kernel.org/stable/c/57957bc7f1865778ec9b1618e15515feb6df7eb4 Patch
https://git.kernel.org/stable/c/859380694f434597407632c29f30fdb5e763e6cc Patch
https://git.kernel.org/stable/c/e1407fb7c337373dfaaae2445d828b0b9ae26a29 Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*
History

11 May 2026, 20:12

Type Values Removed Values Added
CWE NVD-CWE-noinfo
References () https://git.kernel.org/stable/c/546de94e41e92e1f7dc6213615fb7c794d05db98 - () https://git.kernel.org/stable/c/546de94e41e92e1f7dc6213615fb7c794d05db98 - Patch
References () https://git.kernel.org/stable/c/57957bc7f1865778ec9b1618e15515feb6df7eb4 - () https://git.kernel.org/stable/c/57957bc7f1865778ec9b1618e15515feb6df7eb4 - Patch
References () https://git.kernel.org/stable/c/859380694f434597407632c29f30fdb5e763e6cc - () https://git.kernel.org/stable/c/859380694f434597407632c29f30fdb5e763e6cc - Patch
References () https://git.kernel.org/stable/c/e1407fb7c337373dfaaae2445d828b0b9ae26a29 - () https://git.kernel.org/stable/c/e1407fb7c337373dfaaae2445d828b0b9ae26a29 - Patch
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*
First Time Linux linux Kernel
Linux

08 May 2026, 13:16

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.5

06 May 2026, 12:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-05-06 12:16

Updated : 2026-05-11 20:12

NVD link : CVE-2026-43199

Mitre link : CVE-2026-43199

CVE.ORG link : CVE-2026-43199

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
NVD-CWE-noinfo