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CVE-2025-38072
published 2025-06-18

CVE-2025-38072: 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…

medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
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.

Affected

36 ranges· showing 25
VendorProductVersion rangeFixed in
debiandebian_linux
debianlinux< linux 6.1.147-1 (bookworm)linux 6.1.147-1 (bookworm)
debianlinux-6.1< linux 6.1.147-1 (bookworm)linux 6.1.147-1 (bookworm)
linuxlinux
linuxlinux>= 7d47aad4570e5e6e9a8162bb417ca9b74132f27c < 2bd4a938d2eda96ab7288b8fa5aae84a1de8c4ca2bd4a938d2eda96ab7288b8fa5aae84a1de8c4ca
linuxlinux>= 7d47aad4570e5e6e9a8162bb417ca9b74132f27c < 396c46d3f59a18ebcc500640e749f16e197d472b396c46d3f59a18ebcc500640e749f16e197d472b
linuxlinux>= 7d47aad4570e5e6e9a8162bb417ca9b74132f27c < f49c337037df029440a8390380dd35d2cf5924d3f49c337037df029440a8390380dd35d2cf5924d3
linuxlinux>= 7d47aad4570e5e6e9a8162bb417ca9b74132f27c < db1aef51b8e66a77f76b1250b914589c31a0a0eddb1aef51b8e66a77f76b1250b914589c31a0a0ed
linuxlinux>= 7d47aad4570e5e6e9a8162bb417ca9b74132f27c < ea3d95e05e97ea20fd6513f647393add16fce3b2ea3d95e05e97ea20fd6513f647393add16fce3b2
linuxlinux>= 7d47aad4570e5e6e9a8162bb417ca9b74132f27c < 1d1e1efad1cf049e888bf175a5c6be85d792620c1d1e1efad1cf049e888bf175a5c6be85d792620c
linuxlinux>= 7d47aad4570e5e6e9a8162bb417ca9b74132f27c < e14347f647ca6d76fe1509b6703e340f2d5e2716e14347f647ca6d76fe1509b6703e340f2d5e2716
linuxlinux>= 7d47aad4570e5e6e9a8162bb417ca9b74132f27c < ef1d3455bbc1922f94a91ed58d3d7db440652959ef1d3455bbc1922f94a91ed58d3d7db440652959
linuxlinux_kernel< 5.4.2945.4.294
linuxlinux_kernel>= 0 < 5.10.244-15.10.244-1
linuxlinux_kernel>= 0 < 6.1.147-16.1.147-1
linuxlinux_kernel>= 0 < 6.12.32-16.12.32-1
linuxlinux_kernel>= 0 < 6.12.32-16.12.32-1
linuxlinux_kernel>= 0 < 5.15.0-152.1625.15.0-152.162
linuxlinux_kernel>= 0 < 6.8.0-100.1006.8.0-100.100
linuxlinux_kernel>= 5.11 < 5.15.1855.15.185
linuxlinux_kernel>= 5.16 < 6.1.1416.1.141
linuxlinux_kernel>= 5.5 < 5.10.2385.10.238
linuxlinux_kernel>= 6.13 < 6.14.96.14.9
linuxlinux_kernel>= 6.2 < 6.6.936.6.93
linuxlinux_kernel>= 6.7 < 6.12.316.12.31

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
CVE-2025-38072 — Use of Uninitialized Resource in Linux | cvebase