Description (CNA)
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 :)
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 71921690f9745fef60a2bad425f30adf8cdc9da0 before fb3a948143688e14e2cfd2a2812877923d0e5e92; affected 71921690f9745fef60a2bad425f30adf8cdc9da0 before cfc7f0e70d649e6d2233fba0d9390b525677d971; affected 71921690f9745fef60a2bad425f30adf8cdc9da0 before e175aef902697826d344ce3a12189329848fe898 |
| Linux / Linux | affected 5.6; unaffected 0 before 5.6; unaffected 5.10.46 through 5.10.*; unaffected 5.12.13 through 5.12.*; unaffected 5.13 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/fb3a948143688e14e2cfd2a2812877923d0e5e92
- https://git.kernel.org/stable/c/cfc7f0e70d649e6d2233fba0d9390b525677d971
- https://git.kernel.org/stable/c/e175aef902697826d344ce3a12189329848fe898
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.