Infinite loop in Linux kernel - CVE-2026-98237
Published: October 7, 2026
Vulnerability identifier: #VU153782
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-98237
CWE-ID: CWE-835
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to an infinite loop caused by unchecked cyclic NDP chains in mhi_mbim_rx() when processing modem-supplied NTBs. A local user can supply a crafted NTB containing an NDP that points to itself or an earlier NDP to cause a denial of service.
Affected software
Linux kernel
Debian Linux
linux (Debian package)
Debian Linux
linux (Debian package)
How to mitigate CVE-2026-98237
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3
linux (Debian package) - update to 6.12.113-1
linux (Debian package) - update to 6.12.113-1
External References
- https://git.kernel.org/stable/c/19b5e8dd884a530d04482e1a8e547f43cad17ed7
- https://git.kernel.org/stable/c/24ade82d6d993274e99c2c6998848751c35292e7
- https://git.kernel.org/stable/c/3ed36ee1b29b028f6bc2ebe100152f61a33df05a
- https://git.kernel.org/stable/c/5d063822ac5184939c1ed377a339a01d8ae814e8
- https://git.kernel.org/stable/c/829fec45122da58d77a55a3b7ca514dafab98e77
- https://git.kernel.org/stable/c/8dad70ff7e25cbcfbcb5101fdbf36d98003eb653
- https://git.kernel.org/stable/c/e4b2c7b50d4f4aa1ddfff731b136d65f65b2b526