cbcvebase.
CVE-2024-40984
published 2024-07-12

CVE-2024-40984: In the Linux kernel, the following vulnerability has been resolved: ACPICA: Revert "ACPICA: avoid Info: mapping multiple BARs. Your kernel is fine." Undo the…

PriorityP422medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.29%
21.1th percentile
In the Linux kernel, the following vulnerability has been resolved: ACPICA: Revert "ACPICA: avoid Info: mapping multiple BARs. Your kernel is fine." Undo the modifications made in commit d410ee5109a1 ("ACPICA: avoid "Info: mapping multiple BARs. Your kernel is fine.""). The initial purpose of this commit was to stop memory mappings for operation regions from overlapping page boundaries, as it can trigger warnings if different page attributes are present. However, it was found that when this situation arises, mapping continues until the boundary's end, but there is still an attempt to read/write the entire length of the map, leading to a NULL pointer deference. For example, if a four-byte mapping request is made but only one byte is mapped because it hits the current page boundary's end, a four-byte read/write attempt is still made, resulting in a NULL pointer deference. Instead, map the entire length, as the ACPI specification does not mandate that it must be within the same page boundary. It is permissible for it to be mapped across different regions.

Affected

29 ranges· showing 25
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.99-1 (bookworm)linux 6.1.99-1 (bookworm)
debianlinux-6.1< linux 6.1.99-1 (bookworm)linux 6.1.99-1 (bookworm)
linuxlinux
linuxlinux>= d410ee5109a1633a686a5663c6743a92e1181f9b < 435ecc978c3d5d0c4e172ec5b956dc1904061d98435ecc978c3d5d0c4e172ec5b956dc1904061d98
linuxlinux>= d410ee5109a1633a686a5663c6743a92e1181f9b < ae465109d82f4fb03c5adbe85f2d6a6a3d59124cae465109d82f4fb03c5adbe85f2d6a6a3d59124c
linuxlinux>= d410ee5109a1633a686a5663c6743a92e1181f9b < 6eca23100e9030725f69c1babacd58803f29ec8d6eca23100e9030725f69c1babacd58803f29ec8d
linuxlinux>= d410ee5109a1633a686a5663c6743a92e1181f9b < dc5017c57f5eee80020c73ff8b67ba7f9fd08b1fdc5017c57f5eee80020c73ff8b67ba7f9fd08b1f
linuxlinux>= d410ee5109a1633a686a5663c6743a92e1181f9b < ddc1f5f124479360a1fd43f73be950781d172239ddc1f5f124479360a1fd43f73be950781d172239
linuxlinux>= d410ee5109a1633a686a5663c6743a92e1181f9b < 434c6b924e1f4c219aab2d9e05fe79c5364e37d3434c6b924e1f4c219aab2d9e05fe79c5364e37d3
linuxlinux>= d410ee5109a1633a686a5663c6743a92e1181f9b < e21a4c9129c72fa54dd00f5ebf71219b41d43c04e21a4c9129c72fa54dd00f5ebf71219b41d43c04
linuxlinux>= d410ee5109a1633a686a5663c6743a92e1181f9b < a83e1385b780d41307433ddbc86e3c528db031f0a83e1385b780d41307433ddbc86e3c528db031f0
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel>= 0 < 5.10.221-15.10.221-1
linuxlinux_kernel>= 0 < 6.1.99-16.1.99-1
linuxlinux_kernel>= 0 < 6.9.7-16.9.7-1
linuxlinux_kernel>= 0 < 6.9.7-16.9.7-1
linuxlinux_kernel>= 0 < 5.4.0-195.2155.4.0-195.215
linuxlinux_kernel>= 0 < 5.15.0-121.1315.15.0-121.131
linuxlinux_kernel>= 0 < 6.8.0-44.446.8.0-44.44
linuxlinux_kernel>= 2.6.32 < 4.19.3174.19.317
linuxlinux_kernel>= 4.20 < 5.4.2795.4.279
linuxlinux_kernel>= 5.11 < 5.15.1625.15.162

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv7.8HIGH
vendor_ubuntu7.8HIGH
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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