Out-of-bounds read in Linux kernel - CVE-2026-98578
Published: October 22, 2026
Vulnerability identifier: #VU156881
CSH Severity: Medium
CVSS v4: 7.1 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-98578
CWE-ID: CWE-125
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker on the local network to trigger an out-of-bounds read that may cause a denial of service.
The vulnerability exists due to an out-of-bounds read in the Linux kernel's st21nfca_get_iso15693_inventory() helper when processing truncated ISO15693 inventory responses. A remote attacker on the local network can supply an inventory response with an insufficient length to trigger a read of data[1] as the DSFID beyond the available data, potentially causing a denial of service.
Affected software
Linux kernel
How to mitigate CVE-2026-98578
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3
External References
- https://git.kernel.org/stable/c/3af2ea4035581a1607d9830779c187a0c7e225aa
- https://git.kernel.org/stable/c/57d183764f3002f9625ee4deeeb20716c519534e
- https://git.kernel.org/stable/c/6353dae51bc9b3cad13c9d890b53311a46c96b4e
- https://git.kernel.org/stable/c/7f2ea5ed588c03d481f0301e6c3d4240132383fb
- https://git.kernel.org/stable/c/9fa21b0f78adb514e3bd96a505ddb752e9727ff3
- https://git.kernel.org/stable/c/a86987d03a4d39acdbe4533d83db4d656ea36c59
- https://git.kernel.org/stable/c/e47b2a350bb0ff123434ec5484c6dc3333b0727c
- https://git.kernel.org/stable/c/fdd95e819d828c975aaeb258a3fed5dd7fd136d0