CVE-2026-72316None▾ SunlitIn the Linux kernel, the following vulnerability has been resolved: dm era: fix NULL pointer dereference in metadata_open() metadata_open() returns NULL when kzalloc_obj() fails, but the caller era_ctr() only checks IS_ERR(md). Since …
▾ 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 6.
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:
dm era: fix NULL pointer dereference in metadata_open()
metadata_open() returns NULL when kzalloc_obj() fails, but the caller era_ctr() only checks IS_ERR(md). Since IS_ERR(NULL) returns false, the NULL pointer is treated as a valid result and later assigned to era->md, leading to a NULL pointer dereference when the metadata is accessed.
Fix this by returning ERR_PTR(-ENOMEM) on allocation failure, consistent with dm-cache-metadata.c, dm-thin-metadata.c, and dm-clone-metadata.c which all use ERR_PTR(-ENOMEM) for the same pattern.
Linux >= eec40579d84873dfb7021eb24c50360f073237c5 < a705e056c2f3dd067fb2ff414f0537530baa090bLinux >= eec40579d84873dfb7021eb24c50360f073237c5 < bd5a80128bdfc93b1cae935a70da000b8c483e6eLinux >= eec40579d84873dfb7021eb24c50360f073237c5 < 17eb2ab13edd0b06ce6f996c5fd450d7efabb2e8Linux >= eec40579d84873dfb7021eb24c50360f073237c5 < 889374b8e4a60d13fe4a5a8ae3a311ca93d1a2c3Linux >= eec40579d84873dfb7021eb24c50360f073237c5 < 01c49eae7c6256f2d8cc08210a2bac3ee070e43aLinux >= eec40579d84873dfb7021eb24c50360f073237c5 < 14e03ecd3b1b5fc03c082b27a2f8889f8290c30eLinux >= eec40579d84873dfb7021eb24c50360f073237c5 < b69ea153d30ce19ca8997eeeca1e2219fae5a29bLinux >= eec40579d84873dfb7021eb24c50360f073237c5 < 9ae672606c17891d90b282e3490b817620549599Linux 3.15Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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