CVE-2021-47241

In the Linux kernel, the following vulnerability has been resolved: ethtool: strset: fix message length calculation Outer nest for ETHTOOL_A_STRSET_STRINGSETS is not accounted for. This may result in ETHTOOL_MSG_STRSET_GET 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/0xa20 and 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 :)

The following products are affected by CVE-2021-47241 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2021-47241.

URL	Resource
https://git.kernel.org/stable/c/cfc7f0e70d649e6d2233fba0d9390b525677d971
https://git.kernel.org/stable/c/e175aef902697826d344ce3a12189329848fe898
https://git.kernel.org/stable/c/fb3a948143688e14e2cfd2a2812877923d0e5e92
https://lore.kernel.org/linux-cve-announce/2024052141-CVE-2021-47241-93cd@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2021-47241
https://www.cve.org/CVERecord?id=CVE-2021-47241