CVE - CVE-2025-38072

CVE-ID
CVE-2025-38072	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
In the Linux kernel, the following vulnerability has been resolved: libnvdimm/labels: Fix divide error in nd_label_data_init() If a faulty CXL memory device returns a broken zero LSA size in its memory device information (Identify Memory Device (Opcode 4000h), CXL spec. 3.1, 8.2.9.9.1.1), a divide error occurs in the libnvdimm driver: Oops: divide error: 0000 [#1] PREEMPT SMP NOPTI RIP: 0010:nd_label_data_init+0x10e/0x800 [libnvdimm] Code and flow: 1) CXL Command 4000h returns LSA size = 0 2) config_size is assigned to zero LSA size (CXL pmem driver): drivers/cxl/pmem.c: .config_size = mds->lsa_size, 3) max_xfer is set to zero (nvdimm driver): drivers/nvdimm/label.c: max_xfer = min_t(size_t, ndd->nsarea.max_xfer, config_size); 4) A subsequent DIV_ROUND_UP() causes a division by zero: drivers/nvdimm/label.c: /* Make our initial read size a multiple of max_xfer size / drivers/nvdimm/label.c: read_size = min(DIV_ROUND_UP(read_size, max_xfer) max_xfer, drivers/nvdimm/label.c- config_size); Fix this by checking the config size parameter by extending an existing check.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/1d1e1efad1cf049e888bf175a5c6be85d792620c URL:https://git.kernel.org/stable/c/1d1e1efad1cf049e888bf175a5c6be85d792620c MISC:https://git.kernel.org/stable/c/2bd4a938d2eda96ab7288b8fa5aae84a1de8c4ca URL:https://git.kernel.org/stable/c/2bd4a938d2eda96ab7288b8fa5aae84a1de8c4ca MISC:https://git.kernel.org/stable/c/396c46d3f59a18ebcc500640e749f16e197d472b URL:https://git.kernel.org/stable/c/396c46d3f59a18ebcc500640e749f16e197d472b MISC:https://git.kernel.org/stable/c/db1aef51b8e66a77f76b1250b914589c31a0a0ed URL:https://git.kernel.org/stable/c/db1aef51b8e66a77f76b1250b914589c31a0a0ed MISC:https://git.kernel.org/stable/c/e14347f647ca6d76fe1509b6703e340f2d5e2716 URL:https://git.kernel.org/stable/c/e14347f647ca6d76fe1509b6703e340f2d5e2716 MISC:https://git.kernel.org/stable/c/ea3d95e05e97ea20fd6513f647393add16fce3b2 URL:https://git.kernel.org/stable/c/ea3d95e05e97ea20fd6513f647393add16fce3b2 MISC:https://git.kernel.org/stable/c/ef1d3455bbc1922f94a91ed58d3d7db440652959 URL:https://git.kernel.org/stable/c/ef1d3455bbc1922f94a91ed58d3d7db440652959 MISC:https://git.kernel.org/stable/c/f49c337037df029440a8390380dd35d2cf5924d3 URL:https://git.kernel.org/stable/c/f49c337037df029440a8390380dd35d2cf5924d3
Assigning CNA
kernel.org
Date Record Created
20250416	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20250416)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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