CVE-2025-38072None▾ SunlitIn 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 Memo…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Nov 5.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.2%
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:
drivers/cxl/pmem.c: .config_size = mds->lsa_size,
drivers/nvdimm/label.c: max_xfer = min_t(size_t, ndd->nsarea.max_xfer, config_size);
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.
Linux >= 7d47aad4570e5e6e9a8162bb417ca9b74132f27c < 2bd4a938d2eda96ab7288b8fa5aae84a1de8c4caLinux >= 7d47aad4570e5e6e9a8162bb417ca9b74132f27c < 396c46d3f59a18ebcc500640e749f16e197d472bLinux >= 7d47aad4570e5e6e9a8162bb417ca9b74132f27c < f49c337037df029440a8390380dd35d2cf5924d3Linux >= 7d47aad4570e5e6e9a8162bb417ca9b74132f27c < db1aef51b8e66a77f76b1250b914589c31a0a0edLinux >= 7d47aad4570e5e6e9a8162bb417ca9b74132f27c < ea3d95e05e97ea20fd6513f647393add16fce3b2Linux >= 7d47aad4570e5e6e9a8162bb417ca9b74132f27c < 1d1e1efad1cf049e888bf175a5c6be85d792620cLinux >= 7d47aad4570e5e6e9a8162bb417ca9b74132f27c < e14347f647ca6d76fe1509b6703e340f2d5e2716Linux >= 7d47aad4570e5e6e9a8162bb417ca9b74132f27c < ef1d3455bbc1922f94a91ed58d3d7db440652959Linux 4.20Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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