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CVE-2025-21724
published 2025-02-27

CVE-2025-21724: In the Linux kernel, the following vulnerability has been resolved: iommufd/iova_bitmap: Fix shift-out-of-bounds in iova_bitmap_offset_to_index() Resolve a…

PriorityP338high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.19%
8.7th percentile
In the Linux kernel, the following vulnerability has been resolved: iommufd/iova_bitmap: Fix shift-out-of-bounds in iova_bitmap_offset_to_index() Resolve a UBSAN shift-out-of-bounds issue in iova_bitmap_offset_to_index() where shifting the constant "1" (of type int) by bitmap->mapped.pgshift (an unsigned long value) could result in undefined behavior. The constant "1" defaults to a 32-bit "int", and when "pgshift" exceeds 31 (e.g., pgshift = 63) the shift operation overflows, as the result cannot be represented in a 32-bit type. To resolve this, the constant is updated to "1UL", promoting it to an unsigned long type to match the operand's type.

Affected

16 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.129-1 (bookworm)linux 6.1.129-1 (bookworm)
debianlinux-6.1< linux 6.1.129-1 (bookworm)linux 6.1.129-1 (bookworm)
linuxlinux
linuxlinux>= 58ccf0190d19d9a8a41f8a02b9e06742b58df4a1 < 44d9c94b7a3f29a3e07c4753603a35e9b28842a344d9c94b7a3f29a3e07c4753603a35e9b28842a3
linuxlinux>= 58ccf0190d19d9a8a41f8a02b9e06742b58df4a1 < 38ac76fc06bc6826a3e4b12a98efbe98432380a938ac76fc06bc6826a3e4b12a98efbe98432380a9
linuxlinux>= 58ccf0190d19d9a8a41f8a02b9e06742b58df4a1 < d5d33f01b86af44b23eea61ee309e4ef22c0cdfed5d33f01b86af44b23eea61ee309e4ef22c0cdfe
linuxlinux>= 58ccf0190d19d9a8a41f8a02b9e06742b58df4a1 < b1f8453b8ff1ab79a03820ef608256c499769cb6b1f8453b8ff1ab79a03820ef608256c499769cb6
linuxlinux>= 58ccf0190d19d9a8a41f8a02b9e06742b58df4a1 < e24c1551059268b37f6f40639883eafb281b8b9ce24c1551059268b37f6f40639883eafb281b8b9c
linuxlinux_kernel>= 0 < 6.1.129-16.1.129-1
linuxlinux_kernel>= 0 < 6.12.13-16.12.13-1
linuxlinux_kernel>= 0 < 6.12.13-16.12.13-1
linuxlinux_kernel>= 0 < 6.8.0-64.676.8.0-64.67
linuxlinux_kernel>= 6.1 < 6.1.1296.1.129
linuxlinux_kernel>= 6.13 < 6.13.26.13.2
linuxlinux_kernel>= 6.2 < 6.6.766.6.76
linuxlinux_kernel>= 6.7 < 6.12.136.12.13

CVSS provenance

nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.8HIGH
vendor_debian7.8HIGH
vendor_redhat7.8HIGH
vendor_ubuntu7.8HIGH
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