PT-2025-49382 · Linux+3 · Linux Kernel+3

Published

2025-12-06

·

Updated

2026-05-26

·

CVE-2025-40281

None

No severity ratings or metrics are available. When they are, we'll update the corresponding info on the page.
Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)
Description The Linux kernel contains a flaw in the sctp transport update rto function that may lead to a shift-out-of-bounds condition. This issue was identified by syzbot, which reported a potential shift exponent that is too large for the 'unsigned int' type. The issue was triggered by the introduction of rto alpha max and rto beta max set to 1000. The vulnerability exists in net/sctp/transport.c at line 509. The function sctp transport update rto is affected.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Related Identifiers

CVE-2025-40281
DLA-4404-1
ECHO-8D4E-E810-5CBD
MGASA-2026-0017
MGASA-2026-0018
OESA-2026-2417
OESA-2026-2418
USN-8029-1
USN-8029-2
USN-8029-3
USN-8030-1
USN-8048-1
USN-8095-1
USN-8095-2
USN-8095-3
USN-8095-4
USN-8095-5
USN-8096-1
USN-8096-2
USN-8096-3
USN-8096-4
USN-8096-5
USN-8100-1
USN-8116-1
USN-8125-1
USN-8126-1
USN-8141-1
USN-8163-1
USN-8163-2
USN-8165-1
USN-8243-1
USN-8261-1

Affected Products

Debian
Linuxmint
Linux Kernel
Ubuntu