vulnerability
Rocky Linux: CVE-2025-21993: kernel (RLSA-2025-7956)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 6 | (AV:L/AC:L/Au:S/C:C/I:N/A:C) | Oct 3, 2025 | Oct 6, 2025 | Oct 6, 2025 |
Severity
6
CVSS
(AV:L/AC:L/Au:S/C:C/I:N/A:C)
Published
Oct 3, 2025
Added
Oct 6, 2025
Modified
Oct 6, 2025
Description
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.
Solutions
rocky-upgrade-kernelrocky-upgrade-kernel-corerocky-upgrade-kernel-cross-headersrocky-upgrade-kernel-debugrocky-upgrade-kernel-debug-corerocky-upgrade-kernel-debug-debuginforocky-upgrade-kernel-debug-develrocky-upgrade-kernel-debug-devel-matchedrocky-upgrade-kernel-debug-modulesrocky-upgrade-kernel-debug-modules-corerocky-upgrade-kernel-debug-modules-extrarocky-upgrade-kernel-debug-uki-virtrocky-upgrade-kernel-debuginforocky-upgrade-kernel-debuginfo-common-s390xrocky-upgrade-kernel-debuginfo-common-x86_64rocky-upgrade-kernel-develrocky-upgrade-kernel-devel-matchedrocky-upgrade-kernel-headersrocky-upgrade-kernel-modulesrocky-upgrade-kernel-modules-corerocky-upgrade-kernel-modules-extrarocky-upgrade-kernel-rtrocky-upgrade-kernel-rt-corerocky-upgrade-kernel-rt-debugrocky-upgrade-kernel-rt-debug-corerocky-upgrade-kernel-rt-debug-debuginforocky-upgrade-kernel-rt-debug-develrocky-upgrade-kernel-rt-debug-kvmrocky-upgrade-kernel-rt-debug-modulesrocky-upgrade-kernel-rt-debug-modules-corerocky-upgrade-kernel-rt-debug-modules-extrarocky-upgrade-kernel-rt-debuginforocky-upgrade-kernel-rt-develrocky-upgrade-kernel-rt-kvmrocky-upgrade-kernel-rt-modulesrocky-upgrade-kernel-rt-modules-corerocky-upgrade-kernel-rt-modules-extrarocky-upgrade-kernel-toolsrocky-upgrade-kernel-tools-debuginforocky-upgrade-kernel-tools-libsrocky-upgrade-kernel-tools-libs-develrocky-upgrade-kernel-uki-virtrocky-upgrade-kernel-uki-virt-addonsrocky-upgrade-kernel-zfcpdumprocky-upgrade-kernel-zfcpdump-corerocky-upgrade-kernel-zfcpdump-debuginforocky-upgrade-kernel-zfcpdump-develrocky-upgrade-kernel-zfcpdump-devel-matchedrocky-upgrade-kernel-zfcpdump-modulesrocky-upgrade-kernel-zfcpdump-modules-corerocky-upgrade-kernel-zfcpdump-modules-extrarocky-upgrade-libperfrocky-upgrade-libperf-debuginforocky-upgrade-perfrocky-upgrade-perf-debuginforocky-upgrade-python3-perfrocky-upgrade-python3-perf-debuginforocky-upgrade-rtlarocky-upgrade-rv
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