CVE-2026-63868 net: garp: fix unsigned integer underflow in garp_pdu_parse_attr

🗓️ 19 Jul 2026 14:18:37Reported by GoogleType

osv

osv🔗 osv.dev👁 3 Views

Linux kernel garp fix for unsigned underflow in garp_pdu_parse_attr using data length minus header.

Reporter	Title	Published	Views	Family All 8
Circl	CVE-2026-63868	19 Jul 202616:04	–	circl
CVE	CVE-2026-63868	19 Jul 202614:18	–	cve
Cvelist	CVE-2026-63868 net: garp: fix unsigned integer underflow in garp_pdu_parse_attr	19 Jul 202614:18	–	cvelist
EUVD	EUVD-2026-45553	19 Jul 202614:18	–	euvd
NVD	CVE-2026-63868	19 Jul 202615:16	–	nvd
OSV	DEBIAN-CVE-2026-63868	19 Jul 202615:16	–	osv
OSV	UBUNTU-CVE-2026-63868	20 Jul 202600:00	–	osv
Positive Technologies	PT-2026-61185	19 Jul 202600:00	–	ptsecurity

Source	Link
git	www.git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
git	www.git.kernel.org/stable/c/04e22fefac1af3e32f245e9045382348773b5d59
git	www.git.kernel.org/stable/c/16e408e607a94b646fb14a2a98422c6877ae4b3c
git	www.git.kernel.org/stable/c/29f28172afb2ae7b31e9bf3e978396f20b381688
git	www.git.kernel.org/stable/c/74e02121be1dcc0efcd56ebdf0171d6129105659
git	www.git.kernel.org/stable/c/973cf7c433d27f4d9556d0b7c332543be7ed7a6e
git	www.git.kernel.org/stable/c/a11f1a671b1361f0f1278dc0041374f2730df73f
git	www.git.kernel.org/stable/c/d4c86ea09ae3e63ee5aa86e941fcc38e0e39874a
git	www.git.kernel.org/stable/c/d8dcd14aa886b8effd83022c550669f4f262854b
github	www.github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63868.json

20 Jul 2026 03:47Current

5.3Medium risk

Vulners AI Score5.3

EPSS0.00165

linux kernel garp garp_pdu_parse_attr unsigned underflow data length header length garp receive path