In the Linux kernel, the following vulnerability has been resolved: iscsi_ibft: Fix UBSAN shift-out-of-bounds warning in ibft_attr_show_nic() When performing an iSCSI boot using IPv6, iscsistart still reads the /sys/firmware/ibft/ethernetX/subnet-mask entry. Since the IPv6 prefix length is 64, this causes the shift exponent to become negative, triggering a UBSAN warning. As the concept of a subnet mask does not apply to IPv6, the value is set to ~0 to suppress the warning message.
| Version | Score | Severity | Vector String |
|---|---|---|---|
| 3.1 | 7.1 | High | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |
| Product | Vendor | Version |
|---|---|---|
| Linux | Linux | 6.12 |
| Linux | Linux | 22.0 ap352796 |
| Linux | Linux | < f263a81451c12da5a342d90572e317e611846f2c |
| Linux | Linux | n/a |