CVE-2026-22994

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-22994
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix reference count leak in bpf_prog_test_run_xdp() syzbot is reporting unregister_netdevice: waiting for sit0 to become free. Usage count = 2 problem. A debug printk() patch found that a refcount is obtained at xdp_convert_md_to_buff() from bpf_prog_test_run_xdp(). According to commit ec94670fcb3b ("bpf: Support specifying ingress via xdp_md context in BPF_PROG_TEST_RUN"), the refcount obtained by xdp_convert_md_to_buff() will be released by xdp_convert_buff_to_md(). Therefore, we can consider that the error handling path introduced by commit 1c1949982524 ("bpf: introduce frags support to bpf_prog_test_run_xdp()") forgot to call xdp_convert_buff_to_md().

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/368569bc546d3368ee9980ba79fc42fdff9a3365 Patch
https://git.kernel.org/stable/c/737be05a765761d7d7c9f7fe92274bd8e6f6951e Patch
https://git.kernel.org/stable/c/98676ee71fd4eafeb8be63c7f3f1905d40e03101 Patch
https://git.kernel.org/stable/c/ec69daabe45256f98ac86c651b8ad1b2574489a7 Patch
https://git.kernel.org/stable/c/fb9ef40cccdbacce36029b305d0ef1e12e4fea38 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:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc5:*:*:*:*:*:*
History

26 Feb 2026, 17:19

Type Values Removed Values Added
CWE NVD-CWE-Other
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
CPE cpe:2.3:o:linux:linux_kernel:6.19:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc3:*:*:*:*:*:*
First Time Linux
Linux linux Kernel
References () https://git.kernel.org/stable/c/368569bc546d3368ee9980ba79fc42fdff9a3365 - () https://git.kernel.org/stable/c/368569bc546d3368ee9980ba79fc42fdff9a3365 - Patch
References () https://git.kernel.org/stable/c/737be05a765761d7d7c9f7fe92274bd8e6f6951e - () https://git.kernel.org/stable/c/737be05a765761d7d7c9f7fe92274bd8e6f6951e - Patch
References () https://git.kernel.org/stable/c/98676ee71fd4eafeb8be63c7f3f1905d40e03101 - () https://git.kernel.org/stable/c/98676ee71fd4eafeb8be63c7f3f1905d40e03101 - Patch
References () https://git.kernel.org/stable/c/ec69daabe45256f98ac86c651b8ad1b2574489a7 - () https://git.kernel.org/stable/c/ec69daabe45256f98ac86c651b8ad1b2574489a7 - Patch
References () https://git.kernel.org/stable/c/fb9ef40cccdbacce36029b305d0ef1e12e4fea38 - () https://git.kernel.org/stable/c/fb9ef40cccdbacce36029b305d0ef1e12e4fea38 - Patch

23 Jan 2026, 16:15

Type Values Removed Values Added
New CVE
Information

Published : 2026-01-23 16:15

Updated : 2026-02-26 17:19

NVD link : CVE-2026-22994

Mitre link : CVE-2026-22994

CVE.ORG link : CVE-2026-22994

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
NVD-CWE-Other