Description
The ZFS_IOC_RECV_NEW ioctl, in the heal receive path, similarly truncated a 64-bit payload size to a 32-bit integer for allocation, then used the original 64-bit size as the length for a byteswap operation. A local user with the -receive- delegated ZFS permission can trigger kernel memory corruption via ZFS_IOC_RECV_NEW by sending a crafted receive stream in heal mode.
CVSS 7.8EPSS 0.16199999999999998%Risk 0.79
View source- Published
- 2026-08-19 06:17:42
- Affected versions
- unknown
- Type
- Kernel
- Last modified
- 2026-08-26 18:16:37
- Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H