CVE-2021-47241
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-47241
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-47241.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-47241
- Related
- Published
- 2024-05-21T15:15:13Z
- Modified
- 2024-09-18T01:00:20Z
- Summary
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
ethtool: strset: fix message length calculation
Outer nest for ETHTOOLASTRSETSTRINGSETS is not accounted for. This may result in ETHTOOLMSGSTRSETGET producing a warning like:
calculated message payload length (684) not sufficient WARNING: CPU: 0 PID: 30967 at net/ethtool/netlink.c:369 ethnl_default_doit+0x87a/0xa20and a splat.
As usually with such warnings three conditions must be met for the warning to trigger: - there must be no skb size rounding up (e.g. reply_size of 684); - string set must be per-device (so that the header gets populated); - the device name must be at least 12 characters long.
all in all with current user space it looks like reading priv flags is the only place this could potentially happen. Or with syzbot :)
- References
Affected packages
Debian:11 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:12 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:13 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source