CVE-2024-44940
In the Linux kernel, the following vulnerability has been resolved: fou: remove warn in gue_gro_receive on unsupported protocol Drop the WARN_ON_ONCE inn gue_gro_receive if the encapsulated type is not known or does not have a GRO handler.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.75%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In the Linux kernel, the following vulnerability has been resolved: fou: remove warn in gue_gro_receive on unsupported protocol Drop the WARN_ON_ONCE inn gue_gro_receive if the encapsulated type is not known or does not have a GRO handler. Such a packet is easily constructed. Syzbot generates them and sets off this warning. Remove the warning as it is expected and not actionable. The warning was previously reduced from WARN_ON to WARN_ON_ONCE in commit 270136613bf7 ("fou: Do WARN_ON_ONCE in gue_gro_receive for bad proto callbacks").
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.75% probability · 53th percentile
- CISA KEV
- Not listed
- Affected
- debian/debian linux · linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/3db4395332e7050ef9ddeb3052e6b5019f2a2a59Patch
- https://git.kernel.org/stable/c/440ab7f97261bc28501636a13998e1b1946d2e79Patch
- https://git.kernel.org/stable/c/5a2e37bc648a2503bf6d687aed27b9f4455d82ebIssue Tracking
- https://git.kernel.org/stable/c/a925a200299a6dfc7c172f54da6f374edc930053Patch
- https://git.kernel.org/stable/c/b1453a5616c7bd8acd90633ceba4e59105ba3b51Patch
- https://git.kernel.org/stable/c/dd89a81d850fa9a65f67b4527c0e420d15bf836cPatch
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2025/03/msg00002.htmlMailing List, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.